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    • 专利摘要:
    Invention m. Used in machines for shaft compaction during continuous processing of highly viscous media. The purpose of the invention is to increase the reliability of the sealing of the reaction chamber with respect to the atmosphere while simultaneously preventing the barrier fluid from entering the chamber. In parts of the housing are coaxial holes. An annular cavity is formed between the joints of the housing parts and the shafts or with elements mounted on the shafts. The shaft sealing means is provided with a connecting device, at least one channel for supplying an inert gas with an annular cavity. Screw conveyors are mounted on the shafts fixedly in the direction of rotation, at least partially located in the respective coaxial holes of the housing parts and partially enclosed by the housing parts. In the conveyor area, supply devices for the material to be processed are installed in the openings of the housing parts. Machining tools are installed behind the conveyors adjoining them axially. In the area of the openings in the direction of the tools, choke means are arranged for the transported material to be processed. 11 hp f-ly, 12 ill. cl
    公开号:SU1676459A3
    申请号:SU874028942
    申请日:1987-02-06
    公开日:1991-09-07
    发明作者:Пауль Фрич Рудольф
    申请人:Рудольф Пауль Фрич (DE)；
    IPC主号:
    专利说明:

    The invention relates to devices for shaft compaction, mainly to devices for the continuous processing of highly viscous media, in particular for producing high molecular weight polymers and condensing polyester.
    The purpose of the invention is to improve the reliability of sealing.
    FIG. 1 shows a device (reactor) for condensing polyester with shaft sealing devices, axial section; 2 shows the upper section of the device, an axial section; Fig. 3 shows the lower section of the device, an axial section; Fig. 4 is a double radial bearing of the device, section; FIG. 5 shows a section A-A in FIG. one; figure 6
    - located in the clutch discs of the three shafts; figure 7 - section bb in figure 2; on Fig
    - shaft sealing device, an embodiment; Fig. 9 shows the upper section of the device, an axial section, an embodiment; in fig. 10 - the same, with peripheral accessories to shaft sealing devices; in fig. 11 is the upper section of the device in FIG. 8, the cross section; FIG. 12 is a lower section of the device of FIG. 1. axial section, option.
    oh oh
    N SL
    about

    with
    A device for producing high molecular weight polymers, in particular, for condensing polyester, has ten vertically directed shafts 1 with parallel axes 2, the latter are located circumferentially on a common imaginary circular cylinder, each of which carries a large number of axially arranged ones on parallel planes of disc-shaped machining elements 3. With the latter, the adjacent shafts are meshed with the formation of a narrow gap of a certain width equal to 0.5 mm. The joint shafts 1 processing elements 3 enclose a cavity forming the reaction chamber 4 and connected by the suction nozzle 5 to a source of reduced pressure (not shown).
    Shafts 1 are collectively surrounded by a housing 6, which consists of two stationary, disk-shaped housing parts 7 and 8 and a tubular cylindrical housing shell 9, which at the tips are sealed with housing parts 7 and 8. In this case, the shafts 1 with cylindrical ends 10 of the shafts are guided through the corresponding openings of the housing part 8 and, by means of sealing means, are sealed in the area of these conductive devices so that air or contaminants enter the space surrounded by the shell 9 of the housing and, in particular, into the reaction chamber 4 is excluded.
    A disc-shaped upper part 7 of the housing is hermetically mounted with the first chamber 11 of the sealing liquid, a hollow, mainly cylindrical sectional body 12, which is pressed by means of axial bolts 13 to the part 8 of the body and to the end wall 14 of which the second annular sectional body 15. the latter is also hermetically mounted on the third sectional body 16, the disc-shaped bottom wall 17 of which is pressed against the second sectional body 15 with axial bolts 18 and which, for its part, is axially bolted with axial bolts 19 It is threaded to its lower wall 17. In the third sectional housing 16, a second sealing fluid chamber 20 is formed; All three sectional bodies 12, 15 and 16 are made with mutually aligned openings for the passage of the ends of 10 shafts, which are sealed. The third sectional body 16 and the entire device are suspended by bolts 21 located on all sides on the base disk 22, which by means of leveling pads 23 rests on the ceiling structure having a corresponding through hole 24 or on the corresponding beam 25 and on which the drive motor 26 is placed. into action located in
    through hole 24, mounted in a suspended state on the base disk 22, junction box 27; which has ten subordinate individual shafts 1 and located in relation to them on the axle axles 28 of the drive shaft, each of which is connected detachably, but without rotation, to the subordinate shaft end 10 by means of a connecting sleeve 29. The junction box 27 is designed so that the drive motor 26 drives the shafts 1 through the junction box 27 to rotate in the same direction and at the same speed.
    0 The crane lug 30, located at the end of the third sectional housing 16, allows, after loosening the screw connections 31 of the bolts 21, to remove from the junction box 27
    5 housing biv sectional housing 12, 15 and 16 of the device as a node and send, for example, for cleaning.
    Both disk-shaped parts 7 and 8 of the casing, with columns located around with a gap and located on parallel axes 32, which are screwed onto the parts 7 and 8 of the casing at point 33, are pressed one to another along the axis. and also fixedly connected to each other. The annular seals 34, which are pressed axially to the parts 7 and 8 of the housing with the help of pressure rings 35 and axial bolts 36, provide a vacuum-tight seal between the housing shell 9 and the mounted parts 7 and 8 of the housing.
    A cylindrical shell made, for example, of high-quality steel, the shell 9 of the body is heated. For this purpose, it is for the most part of its length made of double walls, an outer wall 37. Limited to the latter and the shell 9 of the case, the annular chamber is closed at the end and is equipped with inlet and outlet devices (not shown).
    0 for a heat medium, such as thermal oil. By appropriately controlling the temperature of this heat transfer medium, it is possible to maintain the heating temperature of the shell casing 9 at a certain predetermined level or to be adjusted according to a predetermined program. The lower part 7 of the housing has a housing section 38, which at the end is closed by a lid 39 and in which cylindrical apertures 40 are subordinate to individual shafts 1, which in its lower part are connected to an outgoing device (not shown) for processing material. The shafts 1 carry on their stationary screw openings 42 located in the openings 42 which are surrounded by the walls of the holes with a small gap and transport the processed material from the reaction chamber 4 to the passage and annular channels 41 and from there to the diverter.
    Each of the processing elements 3 comprises a circular part with two opposite end surfaces, with a coaxially disposed one with respect to it, also a disc-shaped, mainly oval part and a subsequent, also axial, expansion disc. At the same time, at least at intervals, the oval parts of the disks can also be replaced only by the disk-shaped processing elements or alternate with them. In any case, the machining elements are in gearing (Fig.5) so that between the mutually rotating end and circumferential surfaces of all parts of the interacting machining elements there are correspondingly narrow gaps of predetermined width (about 0.5 mm).
    The device is designed so that the tubular casing 9 of the body with its cylindrical inner wall reaches, leaving a narrow gap up to the cylindrical circumference of the surface of the processing elements 3. The width of the gap is approximately 0.5 mm and is equal to the width of the specified gap between the processing elements 3. Internal wall the shell 9 of the housing extends tangentially to the circular-cylindrical circumferential surfaces of the processing elements 3.
    Seal the ends of the shaft 10, conducted through the upper part 8 of the housing to the outside, with respect to the housing 6 is carried out as follows. In each through hole 43 for the shaft end 10, an annular sealing element 44 of the contact ring seal 45, rigid with respect to the case, is inserted with a seal in the upper part 8 of the housing, on the sliding surface of which a coaxial sealing ring 46 rests on the corresponding sliding surface 46 and the elastic metal bellows 48 with spring preload presses against the sealing element 44.
    The radial bearing is made in the form of double bearing; a corresponding annular sealing element 49 is inserted with a seal into the subordinate through hole 50 of the shaft of the wall 14. The sealing ring 51 through the metal bellows 52 and the pressure ring 53 is axially pressed against the sealing element 49.
    Both bellows 48 and 52, facing one another, are respectively supported on the pressure sleeve 54 or 55. Both pressure sleeves 54 and 55 are engaged (figure 4.) and are axially pressed to
    finely pressed coal
    O-ring 56. To create this axial tension r - both pressure bushings
    54 and 55 are equipped with a flange 57 or 58, which has the same shape as one
    from oval machining elements (Fig. 6) Flanges 57 and 58 of adjacent shafts 1 can therefore be in gearing, in either shaft mutually clamped with tensioning bolts 59 and fixedly connecting
    yens For the rest, the ends of the 10 shafts are made with a spline profile, with which they are fixedly connected with respectively made pressure bushings 54 and
    55So that the bellows 48 and 52 and the sealing rings 47 and 53 rotate together with
    the ends of 10 shafts.
    Contact ring seal 60, made as a double, is placed in
    A third sectional housing 16. Between the two double seals 45 and 60, respectively, provided in the second sectional housing 15, a radial hem slip 61 is provided for each of the shaft ends 10, which provides the radial direction of the shafts, 1 in this area and prevents the longitudinal bending of the shafts. The annular beads 62 thus provide axial fixation of the shafts 1
    with respect to the second sectional body 15, if the structure as a whole is raised on the crane eye 30.
    In the second chamber 20, which is made in the third sectional housing 16,
    fluid enters the inlet channel 63 of the sealing fluid. It is installed through the center, hermetically crossing the second sectional housing 15 of the channel 64 is connected to the first chamber
    A sealing liquid 11, from which the outflow channel 65 of sealing liquid flows out and leads to the outside. Both chambers 11 and 20 of the sealing liquid are filled with sealing liquid, such as oil, it is maintained under predetermined
    pressure. This ensures that the sealing fluid cannot escape to the atmosphere, and in the extreme case, a certain amount of air can get into the sealing liquid chambers 20 and 11 along the upstream contact ring sealing elements 49 and 51 of the contact sealing ring 60 and these places of sealing remain relative to to the atmosphere dry
    Shafts 1 are drilled inside; each of them contains an axial tube 66, which bounds the annular space 67 and ends near the screw conveyors 40 at point 68 (FIG. 3). A heat transfer fluid, such as oil, is introduced into each of the annular spaces 67 through radial holes 69 to cool the shafts, which is supplied through the connecting element 70 in the second sectional housing 15 and discharged from it through the connecting element 71. The heat-transfer fluid supplied through the connecting element 70 flows into the annular channel 72, which partially surrounds the radial bearings 61. so that the cooling of the radial bearings occurs From the annular channel 72 liquid coolant through the annular gap Am 73 falls into the radial holes 69 and thereby into the annular spaces 67 of the shafts 1.
    The coolant that changes its direction at point 68 flows upward through tubes 66 and through radial holes 74, respectively, enters an annular gap 75 in the zone of the slave contact ring seal, from where it flows through the cavity of the second sectional body 15 and the second annular space 76 71. The second annular space 76 also covers the radial bearings 61, as a result of which they are again subjected to cooling, and the heat transfer fluid, despite what is happening in your Heating 1, has a low enough temperature to cool the seals and bearings, which is about 300 ° C. When passing through the annular gaps 73 and 75, the subordinate elements of the contact ring seals 45 or 60 are cooled as well.
    A certain amount of heat transfer fluid supplied through the annular channel 72 under pressure, for example, 3 bar, can penetrate through the annular gaps 73 and the corresponding parts of the contact ring seal 45 into the first sealing liquid chamber 11, in which much lower pressure prevails. it
    is desirable and safe. Similarly, the heat-transfer fluid may from the annular space 76 located on the discharge side along the annular
    the gaps 75 fall into the upper or second chamber 20 of the sealing fluid at a lower (for example, 2 bar) pressure, which is also harmless.
    61 radial bearings serve in
    The quality of the septum or overlap between the inlet and outlet of the sealing fluid through the annular channels, and should be considered leaks that are relatively small and thus can easily be eliminated by a circulation pump, and also contribute to the lubrication of radial bearings 61.
    On the side facing the reaction chamber 4, the upper part 8 of the housing has
    0 hermetically attached by means of axial bolts 77 coaxial support part 78, in which subordinate individual shafts are made, cylindrical holes coaxial with them 79 and which by means of a pressure ring 35 are hermetically connected to housing shell 9. Each of the shafts 1 carries a fixedly mounted screw conveyor 80 located in the corresponding aperture 79, which in axially
    In this direction, it is adjacent to a cylindrical bearing sleeve 81, which bounds a small annular gap of the bearing with the bore wall, which, together with the bearing sleeve 81 and the bottom wall of the first section housing 12, limits the annular spaces 82, which contain inert gas supply channels 83 connected to the common connecting element 84 inert
    0 gas connected to a source of inert gas (not shown). Measuring instrument 85 permits control of the inert gas flow.
    In the field of screw conveyors 80
    5, the openings 79 enter the passageways 86 extending from the annular passage 87 forming a part of the feed device for the material being processed, through which the material being processed is fed under a predetermined pressure,
    The passageways 86 enter along the perimeter of the screw conveyors 80 at a distance of several helix steps from its end (Fig. 2). To screw
    5, the conveyors 80 abut in the direction of the processing devices 3, respectively, the return screws 88, which are also at least mostly located in the openings 79 and are fixedly connected to the shafts 1. The return screw conveyors 88 have a return stroke compared to the screw conveyors 80, that during the rotation of the shafts 1 in the working direction, they tend to transport the processed material moved by the screw conveyors 80 towards the reaction chamber 4 in the opposite direction notice Since the axial length of the screw conveyors 80 is greater than the axial length of the return screw conveyors
    88, the feed pressure is higher, as a result of which the screw conveyors 80 push the displaced processed material through the helixes of the return screw conveyors 88 operating in the opposite direction. At one time, in the zone of the screw line of the conveyors 80 conveyors, the processed material falls under a predetermined pressure.
    This pressure is used to seal the inert gas blanket enclosing the shafts 1 adjacent to the lower sectional contact ring seal 44, 46 in the space 82 with respect to the reaction chamber 4 using the recycled material itself. The pressure of the inert gas pillow is maintained by the supply 84 is higher than the pressure of the sealing fluid in the adjacent chamber 11 of the sealing fluid, as a result of which the sealing fluid can not get through the sectional contact ring seal 44. 46 In this case, 79 and from there into the reaction chamber 4. A certain amount of inert gas (e.g., nitrogen) enters the chamber 11 of the sealing fluid, from which it is safely removed along with the sealing fluid.
    In the zone where the shafts 1 exit from the holes 79, on each shaft a number of packages arranged one above the other are planted with a gap in the axial direction of the circular disks 89 (Fig. 6), which are in gearing so that between SMOOTH surfaces of the interacting disks form narrow gaps with a precise width of about a given width (about 0.5 mm). The walls of the openings 79 (Figures 2 and 7) pass in this way on the inner side facing the reaction chamber 4 in the axial direction, approximately to the center of each disk pack.
    89, while on the outside the adjacent shell of the housing 9 extends along the entire axial length of such a package of disks. Between the disks 89 and the shell 9 of the case is left with an expedient space,
    During operation by means of inert gas supplied to each shaft 1, adjacent to the formed by contact ring seals 45
    the means in the holes 79 are provided with a pad of inert gas which, in relation to the reaction chamber 4, is sealed with the material itself being processed, pressurized by the return screw conveyors 88. The consumption of inert gas is small and mostly constant; if it suddenly increases, it indicates damage that requires maintenance.
    The recyclable material, transported through the collet auger conveyors 88, is laid out by the meshed disks 89 into thin
    layers that completely fill the narrow gaps between the discs 89 itself and between them and the wall 79, and thus even more improve the sealing of the inert gas cushion. The pressurized inert gas pad increases the conveying effect of the screw conveyors 80.
    At the same time, discs 89 interfere with
    penetration of the processed material into the reaction chamber 4 in the form of thick layers. For this reason, the walls of the openings 79 on the side facing the reaction chamber also reach only half of the axial
    disk pack lengths.
    Since the heat transfer fluid having a temperature not higher than 350 ° C is radially supplied to 1 in the region between the reaction chamber 4 or the housing 6 and the junction box 27 and radially retracted from there, this creates the advantage that the junction box 27 cannot
    be heated by the heat transfer fluid, and the gear transmissions contained in the junction box 27 should not be weakened by the openings that form the channels for the heat transfer fluid. Thrust bearings can also be placed in junction box 27.
    The design of the device also creates an advantage. that the reactor itself, surrounded by the housing 6, can be removed as a whole from the drive consisting of the drive motor 26, the junction box 27 and the shaft sleeves 29, etc., for example, which may be required for cleaning. For example, in case of a break in
    power supply, the entire reactor is under threat of coking. To find a way out of this position, you can first remove the reactor located in the housing 6 after loosening the screw connections 31 from the specified drive, then after disconnecting the pressure ring 35, as well as the threaded fingers 33, shafts 1 with the main seal formed by sectional housings 12, 15 and 16 and the upper part 8 of the housing, you can remove the crane eye 30 from the housing 6 upwards.
    In this way, it is possible either to place the reactor as a whole in a salt bath, or to perform cleaning, or, if necessary, additional cleaning in the salt bath of the shafts 1 together with the main seal and the housing 6 separately from each other.
    Since the O-rings 45 and 60 are designed for metal bellows 48 and 52 set by: - the temperature is 450 ° C and the sealing material (pure graphite) used for static seals of the casing can withstand temperatures up to 1100 ° C, cleaning in a salt bath at a temperature of 350 ° C can be carried out without restrictions, which is a particular advantage. Just when the accelerated polymerization takes only a few minutes, the interruption in the power supply can cause the shaft 1 and the reactor as a whole to be filled with the coked polymer for a short time, as a result of which its components can be dismantled only by destruction or damage, It is provided only in salt bath.
    A slightly modified form of the reactor (Fig. 8-12) basically corresponds to the first form of the embodiment (Fig. 1-7).
    In a modified form of the embodiment, the upper part 8 of the housing is made multi-element and partially movable in the axial direction. Part 8 of the housing has an inner part 90 surrounded by a circumference of shafts 1, the perimeter of which is located on a part of its perimeter and subordinate to individual shafts 1, coaxial with them, cylindrical holes 82 (Fig.7).
    In addition, a hollow, generally cylindrical sectional body 12, which contains the first sealing fluid chamber 11, is hermetically mounted on the housing part 8, which is pressed against the housing section by means of respective axial bolts 13 and is thus in a stationary state. Coaxial with part 8 of the support body
    the part 78, which annularly surrounds the outside part 90 and the cylindrical sectional housing from the outside, is hermetically mounted on the cylindrical outer
    the wall of the sectional housing 12 with the ability to move in the axial direction It limits on its inner side facing the screw conveyors 80, together with the inner part 90,
    0 holes 79, the device (FIG. 9) being designed so that the support part 78 has a smaller axial length than the inside part 90, and the end face 91 of the bearing part facing the reaction chamber 4
    5 78, which is located in the boundary position, extends with an axial gap from the adjacent end surface 92 of the inner part 90. For placing and orienting the support part 78, serves a shaped coaxial support ring 93, which extends from the support part 78 axially upward and rests radially on the cylindrical outer surface of the sectional housing 12 with spacer rings 94,
    5 between which, as between the spacer rings 94 and the support part 78, as well as the pressure ring 95, resilient o-rings 96 (FIG. 11) are located. The pressure ring 95 by means of springs
    0 97 squeezing and clamping fingers 98 are pressed over the sealing rings 96 in the axial direction against the sealing rings 94. fluid impermeable moving wiring
    5 In addition, the support part 78 carries radially supporting support holes 99 located in its perimeter. In which columns 32 are mounted with parallel axes, both parts and 7 and 8 bodies interconnecting each other. At least one of the columns 32 is extended in the axial direction and connected to the formed axial protrusion 100, which is movably and tightly located in the second fixed support hole 101. is. The pressure cylinder 102 is mounted, the axial protrusion 100 is made in the form of a piston. The cylinder 102 is closed by the cylinder head 103, to which, along the line
    0 104 of the working medium is supplied by the working medium, which loads the axial protrusion 100 in the axial direction, and the supply of pressure can be regulated by a servo valve 105 provided in the cylinder head 103.
    5 By appropriately controlling the servo valve 105, it is possible through the axial protrusion 100 to continuously adjust the surrounding screw conveyors 80 axially from the outside the supporting part 78 together with the lower part 7 of the housing, i.e. housing 6, in the way limited by the stops relative to the shafts 1,
    The part of the wall of the holes 79, which is made in the inner part 90, passes slightly above the center of the axial length formed by the disks of disk package 89, which enters the corresponding hole 79 so that the circular disks 89 arranged with an axial gap form throttling elements for the processed material transported by screw conveyors 80 .9). The throttling effect of the disk pack can be altered by the fact that the supporting part 78 containing the outer part of the wall of the holes 79 is controlled in the indicated manner in the axial direction. In the upper extreme position, the circular disks 89 on a large part of the package length in the area of the wall sections of the holes 79 provided in the support part 78 are open on the outside, so that the material to be processed can easily reach a relatively large part of the annular gap 106. If the support part 78 moves axially farther downwards, its end edge 91 also moves further downward, with the result that the extended annular gap 106 will be shorter in the axial direction and the throttling effect created by the disk pack moved recyclable material will increase
    In this way, it is possible to adapt the back pressure of the processed material in the area of the cushion of inert gas to the viscosity of the corresponding processed material.
    In the embodiment (FIGS. 8-12), the counter screw conveyor 88 is replaced with a screw conveyor 107 with a screw conveyor 80 in one direction, the turns of which have a larger cross section than that of the screw conveyor 80. On each shaft to create cushions made of inert gas and the backpressure of the material being processed can also be subordinated to the screw conveyors 80, the counter screw conveyors 88 in the holes 79.
    In order to lubricate the associated contacting ring O-surfaces on the O-ring sealing element 44 and the corresponding O-ring 47 of the radial slide bearing 45 adjacent to the screw conveyor 80 and thereby avoid dry friction and the resulting excessive wear on the radial slide bearings. lubricating fluid is constantly supplied in particular
    OIL, WITH THIS, |; PURE IN REFERENCE KO.IbUf g 3
    A supply channel 108 of a lubricant fluid is made, which, through the axial grooves entering from both sides, the passage channel 109 in the slave gasket ring 94 and the supply channel 110 provided in the section housing 12 leads to the annular channel 111, which is limited to the surrounding shaft 1 s. radial span of guide
    0 by the sleeve 112 (Fig. 11) and the inner wall of the opening of the sealing element 44 in and at point 113 leads to contact ring sealing surfaces. The annular space 82 is also loaded with an inert gas, the supply channel 83 of which through the incoming axial distribution channels on both p. oron through passage 114 in adjacent gasket ring 94 and annular channel 115 connected to it
    0 is charged with an inert gas. that each of the shafts 1, in the zone of its contact ring seal 45, adjacent to the screw conveyor 80, is surrounded by a cushion of inert gas.
    5Connected to supply channel
    83 an inert gas supply line 84 of an inert gas is connected to the first lubricant tank 116 so that it enters above the lubricant level
    0 117 (FIG. 10). The lubricant fluid container 116 is connected from its lower side by a valve 118 to a lubricant collector (not shown), from which it can be inert, as needed,
    5 resistant to heat, approximately 280 ° C, lubricating fluid. From the lubricant fluid supply line 84, a flow line leads to the source of inert gas (not shown) through the adjusting valve 119. A control valve automatically maintains the currently required inert gas pressure.
    Above the lower lubricant fluid tank 116 is an upper one, also partially filled with lubricant fluid, the second lubricant fluid tank 120, which, in its lower zone, is connected to supply line 108 of lubricant fluid on the other side by line 122 containing a circulation pump 123, connected to the lower zone of the lower lubricant container 116. On the suction side of the circulating pump 123, the branch of the first reservoir 120 of the lubricating fluid of the connecting line 125, which is exactly to the level of 117 A. dyno with a location higher than 117 A.-g; lower tank 116.: masoznots, liquid and in which g.odss
    A single inert gas pressure gauge Pa gauge 127, From the connecting line 125, a branch line leads into the chamber with the liquid of the upper reservoir 120 of lubricant fluid. At the end of the funnel-shaped inlet overflow line 128, which determines the height of the liquid level 124. The overflow line 128 with its fluid inlet 124 determines the height, as indicated by the double arrow 129.
    Along lines 84 and 125, the fluid contained in both of the tanks 116 and 120 of the lubricant is loaded with the pressure of an inert gas pad. A circulating pump 123 ensures the continuous circulation of the lubricating fluid so that in the upper container 120 of the lubricating fluid the level 124 of the fluid is constantly maintained, determined by the position of the inlet of the overflow pipe 128 vertically,
    The height of the liquid level 124 is chosen such that it is constantly above the contact annular sealing surfaces 113 (Fig. 11). In this way, a constant supply of lubricating fluid to the annular sealing surfaces 113 is provided. The lubricant fluid exiting between the contacting annular sealing surfaces enters the sealing fluid chamber 11, where it is discharged together with the sealing fluid. The pressure Pi, under which the lubricating fluid is located, is higher than the aospheric one and is determined by the pressure of the inert gas pad.
    The lubrication of the contact ring sealing surfaces located between the ring-shaped sealing element 50 and the sealing ring 51 of each radial slide bearing 45. as well as between the sealing element 44 and the slave sealing ring 46 of each upper radial bearing 60 of the slide is carried out through the hollow drilled shafts 1 of the heat-carrying fluid (heat-carrying oil), which is supplied through the connecting element 70 in the second sectional housing 15 71 (FIG. 10). The conditions are similar to those in the first embodiment.
    To lubricate the contact ring sealing surfaces between the sealing element 49 and the slave sealing ring 51 of each of the upper radial slide bearings 60, there is also provided its own supply of lubricating fluid, C
    The third sectional housing 16 mounted on the second sectional body 15 in the area of its upper wall is provided with an annular flange 130 passing around,
    which encompasses the collection chamber 131 of the liquid that covers all the shafts 1 in the area of their ends 10, which is filled with lubricant 132 to the level 133 of the liquid (figure 10). Lubricant 132 passes
    0 through the channels 134 of the lubricant fluid in the slave sealing elements 49 and the sealing rings 51 interacting with them to the contact ring sealing between them
    5 surfaces. A small amount of lubricant flowing between the contact ring sealing surfaces flows into the upper chamber 20 of the sealing liquid, where it
    0 is added to the sealing liquid, which is harmless.
    The lubricant collection chamber 131 may be lines (not shown) connected to a circulating pump 123.
    5 (Fig. 10), so that the lubricating fluid constantly circulates and, if necessary, is replenished. The lubricant flowing continuously during this circulation from the lubricant collection chamber 131 can flow into the upper lubricant collector 120 via the collecting funnel 135, which is connected to the upper lubricant collector 120 via the control valve 136. Subordinate
    5, the connecting element 137 of the line (Fig. 9) is located on the collecting chamber 131 of the lubricating fluid.
    The lubricant 132 surrounding the ends of the 10 shafts has, in addition to the function
    Lubrication is also a task of siphoning 10 oals at the ends of the ends of the sectional body 16. Containing fluid in chambers 11 and 20, the sealing fluid contains known active ingredients: in relation to odor.
    5 components that, as a result of the breathing of the contact ring seals 49 and 51 along the shafts 1, could be released into the atmosphere and cause environmental pollution.
    0 Supply with sealing fluid
    Sealing fluid chambers 11 m 20 are made in such a way that the sealing fluid is constantly circulating and at the same time is continuously cooled (Figures 8-12). Wherein
    5, heat is continuously removed from the radial bearings 45 and 60 of the slide, washed by the sealing fluid.
    The inlet channel 63 of the sealing liquid to the upper chamber 20 of the sealing liquid is connected by line 138 to heat exchanger 139, the primary circuit 140 of which is controlled by thermostat 14 so that the sealing liquid flowing through line 138 is constantly maintained at a predetermined temperature level (Fig . ten). A sealing liquid discharge channel 65, made in the end wall of the sealing liquid lower chamber 11 of the end wall 14 of the first sectional body 12, is connected via line 142 and circulation pump 143 to the heat exchanger end 139 on the suction side circulating pump 143, a collector 144 of sealing fluid, which is connected to a vacuum pump 145 supporting the sealing fluid at a reduced pressure Pi, with a device 146. This reduced pressure is chosen so that of Pi is the pressure at which the sealing fluid below atmospheric pressure and lower than the pressure P2 of the lubricating liquid in the collections 116 and 120 and the lubricating fluid cushion of inert gas.
    Both chambers 11 and 20 of the sealing fluid are otherwise interconnected by a connecting line 147, which is connected via the discharge channel 148 entering from the upper chamber 20 of the sealing fluid and the supply channel 149 to both sealing chambers 11 and 20. In each chamber 20 and 11 of the sealing fluid, the inlet channel 63 or 149 is connected to the intersecting chamber of the sealing fluid by a supply pipe 150, which enters the recess 151 in the form of a blind hole in the bottom of the corresponding chamber 11 or 20 sealing fluid, and configured so that the sealing fluid leaving the inlet pipe 50 flows from the bottom of the chamber 11 or 20 of the sealing fluid up (shown by arrows in Fig. 10). Since the discharge channel 65 or 148 of the sealing fluid of each of the two chambers 11 and 20 of the sealing fluid enters on its upper side, the flow of the chamber 11 and 20 of the sealing fluid in the longitudinal direction inevitably occurs in this way.
    Sealing fluid chambers 11 and 20 are connected in series by connecting line 147. It is also possible to arrange that the sealing fluid chambers 11 and 20 are mutually parallel and provided with a sealing fluid through a circulation pump 143 and a heat exchanger 138.
    The viscous recyclable material entering through the annular channel 87 and the passage channels 86 into the holes 79 and thereby supplied to the screw conveyors 80 falls under the action of return screw conveyors 88 (FIG. 2) and / or round discs 89 (FIGS. 2 and 9 ) under a predetermined back pressure so that it, together with a pillow from inert
    gas at the same time can take on the function of the seal. In addition, it is possible, in addition to the viscous material to be processed, to feed also the screw conveyors 80
    additives that are introduced into the processed material, in particular, molten synthetically. Such additives, depending on the purpose of use of the material being processed, are, for example, stabilizers, plasticizers, antioxidants, aggregates, paints, fibers, flame retardants, foaming agents, etc. When processing synthetic materials, the addition of additives
    allows, at this stage of processing, to abandon other, previously required processes for melting and granulation, which were still necessary when applying the own compounding machines created for this.
    To this end, in at least one of the holes 79 in the feed direction under the feed material to be processed, the slave through passage channel 86 at point 152 enters at a 45 ° angle to the vertical supply line 153 for additives connected to a funnel-shaped tank 154 for additives, which the vacuum is tightly closed with a lid 155 (Fig. 11). Collection 154
    The additives may contain metering devices (not shown) that provide, in advance, a quantitatively programmed supply of additives. The additives contained in the collection 154 are insulated by the cover 155 from air oxygen. The entire collection and supply line 153 are under the pressure of an inert gas, which, coming from the inert gas cushion, penetrates through the turns of the screw conveyor 80 at point 152 into the supply line 153. It can also be envisaged to connect the collection 154 directly to the source of inert gas
    Since as a result of the addition of additives to the material being processed, its volume increases, the worm conveyor 80, starting from the center of the inlet at the point 152, is replaced by the worm conveyor 156 acting in the same direction, but with a large pitch.
    The release of the processed recycled material supplied with additives, if necessary, from the reaction chamber 4 occurs in the same form in both forms. But since. The supporting part 78 together with the housing 6 can be limitedly moved in the longitudinal direction above the cylinder 102 (FIG. 9) relative to the shafts 1, and also connected by columns 32 with the lower part 7 of the housing, then the lower part 7 of the housing participates in similar movements of the supporting part 78 in the axial direction, taken in order to adapt to the processed materials of different viscosity. Since the screw conveyors 42 can be moved in the axial direction in the subordinate cylindrical holes 40, this adjustment in the axial direction is quite possible.
    The lower part 38 of the casing on the greater part of the axial length of the screw conveyors 42 passing through it is surrounded by the casing 157 of the casing with the formation of an annular space 158. The last channels 159 and 160 are connected to the inlet 161 of the coolant and the outlet 162 of the coolant The liquid coolant flows continuously, which allows the material to be processed in the zone of the screw conveyors 42 and the passage and annular channels 41 at the required temperature level, respectively. During the polymerization of synthetic materials under pressure, the suction inlet 5 may be closed to exit to the outside.
    The invention shows the use of a reactor with shafts moving in the same direction, however, it is limited to devices of this type and can be used in other devices for processing synthetic material, etc., for example for screw mixers and agitators, gassing and degassing devices, etc. e. where the shafts are taken out of the space and the high-viscous medium under reduced pressure is processed.
    权利要求:
    Claims (12)
    [1]
    1. A shaft sealing device, preferably for a continuous processing device for highly viscous media for producing high molecular weight polymers and condensing polyesters, containing at least two parallel processing shaft bearing interacting tools, which are arranged vertically, inlet and outlet devices for the material being processed, as well as a reduced pressure load reaction chamber, which is bounded on at least one side of the body accelerating devices for shafts connected to the outside of the junction box, the reaction chamber in the area of the shaft access devices by means of at least one contact ring seal sealing means sealed against the enveloping shaft ends located outside the chamber a barrier fluid containing a barrier fluid, characterized in that, in order to increase the reliability of the sealing of the reaction chamber with respect to atmosphere, while preventing the barrier fluid from entering the reaction chamber, coaxial holes with access to the reaction chamber are made in parts of the body, the shafts are passed through coaxial holes, and between the joints of the body parts and shafts or elements mounted on the shafts the shaft is equipped with a connecting device, at least one channel for supplying inert gas with an annular cavity, and screws are mounted to the shafts fixedly in the direction of rotation conveyors located at least partially in the respective coaxial holes of the housing parts and at least partially covered by the housing strips, and supply devices for the material to be processed are installed in the openings of the housing parts, adjacent to the screw conveyors, in the area of the screw conveyors In the axial direction, machining tools are installed, and in the area of the openings of the housing parts in the direction of the machining tools are located conveyor screw conveyed material.
    [2]
    2. The device according to claim 1, 1 and 2, with the fact that when the shafts are vertically positioned above the annular sealing surfaces of the contact seal, a volume is formed connected to the annular cavity, while the contact ring seal is provided with the source of lubricant, the level mirror of which is located above the junction of the contact sealing surfaces.
    [3]
    3. A pop2 device, characterized in that it is provided with a device for mounting a mirror of lubricating fluid in relation to the contact annular sealing surfaces, and a volume between the contact sealing is connected to it
    and shafts.
    [4]
    4. Device on PP. 1-3. different in that the throttle means have at least partially covered screw body conveyor parts, the direction of which is opposite to the direction of the screw shaft conveyors.
    [5]
    5. Device on PP. 1-4, characterized by the fact that at the location of the shafts
    circumferentially in the housing, the throttle means include fixed in the direction of rotation on the shafts R the zone of their exit from the enclosing parts of the body and located in the form of a package at an axial distance from each other mainly round disks, which respectively of adjacent shafts are engaged friend with druim
    [6]
    6. The device according to claim 5, characterized in that the circular discs of each package R in the area of the circumferential surface facing the reaction chamber are covered by parts of the body on a part of the axial length of the package.
    [7]
    7. The device according to claim 6. different with that. that circular discs in the zone of their circumferential surface, remote from the reaction chamber, are covered by body parts along the entire axial length of the package with a gap.
    [8]
    8. The device according to claim 6, which differs from the fact that round disks in the zone of their circumferential surface remote from the reaction chamber, on the part of their axial length of the package, are covered by parts of the body with large
    radial clearance than in the area of their circumferential surface facing the reaction chamber.
    [9]
    9. The device is pop. 1, which differs from the fact that the parts of the body covering the choke means are mounted with the possibility of axial movement relative to the choke means.
    [10]
    10. A device as claimed in Claims 1-9, characterized in that the shafts are made with internal cavities connected to the connecting devices of the pumping fluid, and at least a part of the contact ring seal is placed in the barrier fluid.
    [11]
    11. The device according to claims 1-10, characterized by the fact that at least one contact ring seal is made in the form of a double seal with two axially spaced relative to the body, sealing elements and two springs clamped to these elements in the axial direction of the sealing rings, which spring clamped relative to each other in the axial direction by means of pressure bushings with flanges connected with one another in the axial direction by clamping screws, while the flanges pressing mnyh sleeves adjacent shafts obkatyvayuschimis formed and arranged with a clearance relative to one another.
    [12]
    12. A device according to claims 1-10, characterized in that a feed device for additives containing a gas-tight supply tank with additives connected to annular cavities is connected to coaxial holes in the zone of screw conveyors of shafts below the device for the processed material.
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    同族专利:
    公开号 | 公开日
    ES555785A0|1987-05-01|
    ES8705357A1|1987-05-01|
    EP0206021A1|1986-12-30|
    ZA864262B|1987-02-25|
    CA1273953A|1990-09-11|
    DK268386A|1986-12-09|
    US4745233A|1988-05-17|
    HUT43552A|1987-11-30|
    AU5847386A|1986-12-11|
    JPS6242953A|1987-02-24|
    IL79055D0|1986-09-30|
    DE3660489D1|1988-09-15|
    NO862279L|1986-12-09|
    DK268386D0|1986-06-06|
    GR861480B|1986-10-07|
    PT82726A|1986-07-01|
    AT36312T|1988-08-15|
    YU95986A|1988-02-29|
    NO862279D0|1986-06-06|
    FI862431A|1986-12-09|
    EP0206021B1|1988-08-10|
    FI862431A0|1986-06-06|
    DD260490A5|1988-09-28|
    PT82726B|1988-12-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB2021588B|1978-04-05|1983-03-30|Biorex Laboratories Ltd|Bibenzyl derivatives the preparation thereof and pharmaceutical compositions containing them|
    DE2927050A1|1979-07-04|1981-01-15|Biorex Laboratories Ltd|Di:halo-di:hydroxy-di:alkyl-bi:benzyl derivs. - useful as pharmacologically active agents|
    US4427697A|1980-11-18|1984-01-24|Biorex Laboratories Limited|1,2-Diphenylethane derivatives|
    US4467121A|1980-12-31|1984-08-21|General Electric Company|Fluorinated diphenols and method for their preparation|JPH01155753A|1987-12-11|1989-06-19|Nippon Telegr & Teleph Corp <Ntt>|Automatic answering telephone set|
    US6391920B1|2000-05-26|2002-05-21|Harry Fisch|Methods of treating androgen deficiency in men using selective antiestrogens|
    US7737185B2|2001-07-09|2010-06-15|Repros Therapeutics Inc.|Methods and compositions with trans-clomiphene|
    EP1411916B1|2001-07-09|2008-08-27|Repros Therapeutics Inc.|Methods and materials for the treatment of testosterone deficiency in men|
    RU2413508C2|2005-03-22|2011-03-10|Репрос Терапьютикс Инк.|Trans-clomiphene dosing regimen|
    WO2009051908A1|2007-10-16|2009-04-23|Repros Therapeutics Inc.|Trans-clomiphene for metabolic syndrome|
    MY170718A|2011-08-04|2019-08-27|Repros Therapeutics Inc|Trans-clomiphene metabolites and uses thereof|
    US9687458B2|2012-11-02|2017-06-27|Repros Therapeutics Inc.|Trans-clomiphene for use in cancer therapy|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3520622|1985-06-08|
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