• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An installation and process for dry cleaning granular foodstuffs and feedstuffs, such as cereals, are disclosed. The separation of the product to be cleaned into different fractions is effected in a single oscillating group having an upper sizing screen (2) that can be composed of any desired combination of screens (15, 18 ; 70, 71), has a closed bottom and is directly arranged above a weighting screen (3, 4 ; 72, 73 ; 81) in such a manner that the two screening units form a V or fork with respect to each other. The weighting screen (3, 4 ; 72, 73 ; 81) can also be combined to form various designs, such as a single or double-layer table, or as a lower stone sifting table with an upper layer. Through the fork-like gap (22) air is supplied to the weighting tables. An essential feature is that the product to be cleaned is conveyed without interruption from one screening unit to the other and from the beginning to the end of the machine (I) in a flattened-out state, resembling a textile fabric web.
    公开号:SU1641185A3
    申请号:SU884356202
    申请日:1988-07-29
    公开日:1991-04-07
    发明作者:Мюллер Роман
    申请人:Гебрюдер Бюлер Аг (Фирма)；
    IPC主号:
    专利说明:

    31641185
    (VG) and are located in the form of the 4 and upper PS 7. With the extended, the suction is connected
    with t h h g ma qi le p n i n with the same 36
    the fan branch, and with the narrowed part of it - channel 19 "The cavity 7 is divided by a wall 23 into the upper 24 and lower 25 suction chambers ,, Adjustable air throttles 26 and 27" are installed in each chamber 24 and 25 8 and are directed to the plane of the 2iZiPS5i6 screens. In this case, the actuator 8 is located on the horizontal plane passing through the center of gravity of the VG plane on both its sides with possible 1
    throwing vibrations with a component upwards for PS 5 and 6 and with a component down for screens 2 and 3. The lower port of the upper PS 5 mbs communicated with the loading nozzle of a vertical pneumatic separator in the form of an aspiration channel with an annular dust separator. In the zone immediately above the surface of PS 5, a separation of the product flow and concentration of heavy parts occurs. The lower layer enriched with heavy particles is fed from PS 5 to the middle zone of PS 6. Under the influence of throwing vibrations, the heaviest particles are fed to the left upper end of PS 6 and then to release 36 for stones. 4 з.п „f-ly, 5 ils
    The invention relates to devices for the dry preparation of grain for food and feedstuffs for grinding, and can be used in agriculture and other industries.
    The purpose of the invention is to improve the quality of preparation of products and the performance of the installation while maintaining its compactness.
    FIG. 1 is a schematic diagram of the proposed installation; Fig. 2 shows a combined installation with an aspiration step; FIG. 3 shows the same with air circulation and an additional pneumatic separator in FIG. 4 — an installation with two pneumatic stone separation tables one on top of the other and screens for parallel sieving; Fig 5 - installation, embodiment
    The installation includes a housing 1, located in the housing unit material classification by size in the form of two inclined vibrating screens 2 and 3, parallel to each other, with a pallet 4 located below the screen 3. Pneumatic tables 5 and 6 are made in the form of one vibration group with screens 2 and 3 are arranged beneath them parallel to each other with a formation between pallet 4 and
    five
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    five
    upper pneumatic table 5 V-shaped cavity 7.
    Arrow 8 shows the vibration exciter (vibrator group drive) "The oscillations are directed at an angle to the plane of screens 2 and 3 and pneumatic tables 5 and 6. The direction of oscillations is simultaneously parallel to the plane of Fig. 1, respectively, to the direction of product flow"
    The vibration group drive 8 is located on a horizontal plane passing through the center of gravity of the vibration group, on both sides of the plane with the possibility of receiving throwing vibrations with the component up for pneumatic tables 5 and 6 and with the component down for screens 3 and 3.
    Above the screen 2 in the upper part of the housing is located the loading device in the form of a pipe 9 for supplying the product. The pipe 9 is rigidly connected with the non-oscillating lid 11 through the suspensions 10. An elastic cuff 12 is provided between the product supply pipe 9 and the screen 2, which serves as a transition from the non-oscillating parts of the device to the oscillating parts. The zone of the product entrance to the screen 2 is in the form of distribution the box 13 so that the tubular flow in the pipe 9 expands into a uniform layer on the upper trough of the sieve, respectively, on the coarse sieve 14 of the screen 2. The coarse sieve 14 serves preferably to remove the coarse sieve Essey and large foreign bodies, such as wood pieces and "Pau", which are removed from the stream through the outlet 15. The space above the coarse sieve 14 is completely closed from the outside by means of a sheet flap 16, so that dust does not escape and there is no air replacement. "At a distance under the coarse sieve 14, there is a selective sieve of 17 sieves h. This sieve has rather thin cells to sift out fine sand, grain particles, etc." The graded product (sifting) is discharged through a closed, mostly air-tight bottom, or pallet 2 4 and the release of sand 18 connected to it, i.e. separated from the product stream.
    The space between the lower ends of screens 2 and 3 and the loading part 2 of the upper pneumatic table 5 are connected to each other by means of a bypass channel 19. The expanded part of the V-shaped cavity 7 is connected through the suction port 20 and the aspiration port 21 to the fan 22. The bypass channel 19 is communicated with a narrowed portion of cavity 7, which is divided by wall 23 into at least one upper 24 and one lower 25 suction chambers.
    This allows the throttle valves 26 and 27 to be regulated in one or another chamber 25 or 24, depending on the need (either in the upper or lower part of the fluid bed). Between the suction nozzle 20 and the suction wire 21, an elastic cuff 28 is provided. With the help of the installation valve 29, the desired amount of air can be adjusted to operate the device.
    In the lower part of the table 5, a cut 30 is made with large openings for withdrawing the product. A tray 31 is located underneath it. Adjustable bar 32 is positioned behind section 30. The fraction is withdrawn through outlet 33, the middle fraction can be withdrawn through an additional opening 34 in the lower end of table 5, into outlet 35. Issue 36 serves to remove stones from the table 6. Building 1
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    rests on vibrating supports 37 through frame 38 to base 39.
    The installation can be performed in combination with a vertical pneumatic separator in the form of an aspiration channel 40f, the loading nozzle 41 of which is connected to the lower part of the upper pneumatic table 5, the wall 23 is adjustable so that air distribution on the surface of the pneumatic table 5 can be adjusted, and the amount of air required in the aspiration duct by means of droplets 42 (Fig. 2) "The amount of air that is drawn off from the cavity 7 above the space can be regulated s via the regulating valve 43. The bottom of the pneumatic table 6 is made air-permeable so that air can be freely blown from below the table (suction mode).
    The installation can be performed in combination with an air duct or an aspirating channel 40 with an annular dust separator 44 (Fig. 3). 0 The upper part of the air duct 40 communicates with the suction branch of the fan 220. The air leaving the aspiration channel 40 is fed into an annular separator
    44, in the separator, dust and parts of the husk are highly separated and can be discharged through the dust gateway.
    45. Working air is supplied through channel 46 and return duct 47 back to the classification stroke. The lower part of the duct 40 communicates with the cavity 48 between the lower pneumatic table 6 and the wall of the housing 1. The cavity 48 is connected with the fixed return duct 47 through the elastic cuff 49.
    The pneumatic table 6 (Fig „3) can have an underlying plate 50 under it with very thin perforations, so that it is possible to have a good distribution of air on the surface of the pneumatic table 6 for separating the stones. Also, if an aspiration system is not provided, the machine may have a filter (not shown) behind the suction inlet 510 With the help of a fan 22, preferably located after the annular separator 44, it is possible to control the pressure distribution in y with the help of air dampers 52 and 53 installation,,
    as shown by the + and - signs in circles. In this case, the machine is fully operated in the air circulation mode and has a light impurity separator for this purpose. In the event that the machine is not operated in the circulation mode, there is no need for appropriate elements.
    1641185. eight
    the sides of the product particles loosened, so that contaminants or husks easily adhering to the grain are quickly separated, which facilitates the subsequent separation into fractions. On the other hand, the product layer is retained from the very beginning and despite this it can be completely used
    In the installation can be provided-jg processing of the product before and after
    for classification by size, two parallel sections 54 and 55 in the form of screens 2 and 3 with independent pallets (the finest sand and grain pieces) 4 and 56 and an independent drainage of separable fractions (the finest sand, grain pieces) through the pipes 57 and 18 from the corresponding closed bottoms 4 and 56 (Fig. 4) o For the gravitational classification (by weight), in particular for pneumatic tables in this case there are two surfaces 58 and 59 of tables, which have a layer of cell grid
    A flap 60 is located above the table 5 with a surface 58, and a transmitting element 61 is located below it. A guiding plate 62 is located above the surface 59 of the lower table 6.
    In the installation of the upper pneumatic table 5 can be made with a less rough surface than the lower table 6 (Fig. 5). The upper table 5 has an outlet 63 in the upper part, and a tray-shaped recess 64 in the lower part with holes 65 in its bottom. The bypass tray 31 under the tray-shaped recess 64 serves to supply stones to the downstream table 6.
    The installation works as follows
    The material to be separated is fed through conduit 9 into the distribution box 13 and in a uniform layer flows into the sieve 14 of the upper screen 2 "On the coarse sieve 14, the coarse ones are separated
    15. The material passed through the sieve 14 is fed to a thinner selective sieve 17 of the sieve 3, the undersize product of which is discharged through the release of sand 18 o. The descent from the selected sieve 17 flows through the entire width of the table through the overflow channel 19 to the pneumatic table penetrated by air 5 "Reset from the selected screen 17 and the subsequent change of the flow direction of the main product flow on the pneumatic table 5 has a double function C
    so that dirt or husks that easily stick to the grain are quickly separated, which facilitates the subsequent separation into fractions. On the other hand, the product layer is retained from the outset and despite this it can be fully used
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    supply points: various physical forces: in front of the supply point in the product layer on the airtight surface of the sieve (selective sieve); after the place of supply in the classic highly blown air swirl layer on the pneumatic table "
    On the airtight surface of the screen, this is a purely mechanical pusher force from particles to particles. The vibrating layer of a product looks like the process in concrete vibrating for the greatest filling density, and the smallest particles immediately tend to move into the hollow spaces of the lower layer of coarse grains. Since the bottom of the sieve is permeable to small particles, they pass through
    0 through a sieve and screened out. Large particles tend to the surface of the product layer.
    In contrast to this, in the vortex layer air forces are used as the main forces, a strongly pronounced separation occurs within the vortex layer by weight. On the pneumatic table, the grains move upward inside the vortex layer, and the stones down,
    Due to the vertical discharge from the selection screen 17 to the pneumatic table 5, as well as a change in the direction of flow, the bulk density diverges into a vortex lamination, namely
    5 in a very short period. Short-term increases in throughput and performance fluctuations do not adversely affect the quality of the interleaving.
    0 Pneumatic table 5 has the task of smearing the product flow and concentrating the heavy parts in the zone directly above its table surface “Not far from the lower end of the surface of the table 5, which before | the place is breathable but impermeable to the product, there is a cut 30 with large holes for the product. Through this cut there is a gap of 5
    0
    The bottom layer, enriched with heavy particles, especially with stones, is directly on the tray 31 below and is fed from there to the middle zone of the pneumatic table 6 "With the help of an adjustable bar 32 to create a backwater of the product, you can set the percentage of the product flow - shares of heavy and light fraction. The proportion of the light fraction is supplied directly to the corresponding release 33. It is also possible to deliver the fraction of medium weight through the additional holes 34 at the bottom end.
    Table 6 in release 35 for the heavy fraction, m e. good grains
    Table 6 has a rough surface, usually a cell grid. The heaviest 6 parts directly lying on the surface of the table are supplied by a rough surface and throwing vibrations of vibration exciters to the upper left end of the table and thereafter to release 36 for stones. In contrast to a pneumatic table 6, a pneumatic table 5 has a smooth surface, so that the surface table 5, despite its oscillations identical with the table 6, has a transporting effect only on the product layer lying closer to the table surface. Due to the fluid flow, the product flows like a liquid downwards. The common for the tables is 5. and 6 the direction of vibration is correct for the direction of sieving. The product comes down due to fluctuations in the surface of screens 2 and 3. The above indicates that all three classification units, namely screens 2 and 3, pneumatic tables 5 and 6 can be equipped with a common vibration drive 8. With the same air only pneumatic tables 5 and 6 are blown.
    When performing the installation according to FIG. 2, there is an additional separation of the light fraction by weight in the vertical pneumatic separator 40 0. When performing the installation according to FIG. 3 it operates in the mode of circulation or ventilation of air. The device 40 brings air through the dust separator 44 back to the housing 1 to the cavity 48 located under the pneumostable 6, which allows the installation to be used without a filter.
    Jq.
    20 25 30 jj 40 45
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    The features of the plant according to FIG. 4 are as follows. Oscillatory movements inform the product lying on the top 5 or bottom 6 table with a predominantly transporting effect to the upper end of the table. The light product rises due to the strong uniform air flow from the surfaces of both tables and is carried out through outlets 33 or 35.
    On the upper surfaces 58 and 59 of the pneumatic tables 5 and 6 a heavy fraction flows to 60% of the total amount of product under the shield 60 and from there to the transmitting element 61 to fall directly onto the lower surface 59 of the pneumatic table 6. The upper surface 58 of the table prepares the mixture with the whole heavy product, for example, in an amount of 50%, is transferred to the lower table near the upper end of the table. Strongly layered flow movement (shown by circulation lines) provides high quality stone separation. In the range close to surfaces 58 and 59 of tables 5 and 6, there is a strong upward movement of the material and a strong downward movement above the surface.
    The stones are separated between the table surfaces 59 and the guiding plate 62 provided above the upper end of this table. Due to the anti-product flow of air in this zone, the stones are retracted only with a small fraction of the grain and are released through the outlet 36.
    The advantage of the embodiment of the installation of FIG. 4 is that the throughput through the various treatment zones can be precisely tailored to the specific requirements of the individual parts. Due to the fact that all the tables have the same working surface, a doubling of the screening surface is obtained, as well as a doubling of the surface of the stone separator, since the lower surface itself receives only a partial amount of the total amount. This provides high quality sifting and stone separation with high throughput.
    When operating the plant according to FIG. 5, only the surface of the lower table 6 serves to separate the stones.
    ten
    The table 5 lying above it has a less rough surface, so that a part of stones with a small number of grains comes up and can fall through the through-holes 63 down directly onto the table 6. The upper classification table 5 by weight serves primarily as a layering stele and has a bottom parts a tray-shaped recess 64, in which the whole heavy product (heavy grains) is collected together with stones, the T fraction from the recess 64 goes down through the holes 65 in the bottom and through the tray 31 is fed to the stone separation table 6. The largest The advantage of this option is that, along with the high quality, the separation stone is good with a device, for example, a heavy product and a light product, which is produced through the release of 33c,
    1641185 12
    pneumatic table communicated with each other through the bypass Kana15
    20
    They are made as one vibration group and are located one below the other with the possibility of forming a V-shaped cavity between the pallet and the upper pneumatic column, the suction branch of the fan is connected with the expanded part of the V-shaped cavity, and the bypass channel with its narrowed part.
    2. Installation under item 1, characterized in that the drive of the vibration group is located on the horizontal, passing through the center of gravity of the vibration group of the plane, on both its sides with the possibility of receiving throwing oscillations with the component up for pneumatic tables and with the component down for screenings.
    Claims 25
    1 о Installation for dry preparation for grinding a grain-like food and fodder product, including a body, inside which two parallel vibration pneumatic tables, a loading device,
    put in the upper part of the case, and the fan to create an air flow that penetrates both pneumatic tables in order. what.
    different, with the aim of improving the quality of product preparation and installation performance while maintaining its compactness, it is equipped with two inclined vibrating screens with a pallet arranged parallel to one another under the loading device, while the space between the lower ends screens and the loading part of the top
    0
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    They are made as one vibration group and are located one under another with the possibility of forming a V-shaped cavity between the pallet and the upper pneumatic table, the suction branch of the fan is connected with the expanded part of the V-shaped cavity, and the overflow channel with its narrowed part.
    2. Installation under item 1, characterized in that the drive of the vibration group is located on the horizontal, passing through the center of gravity of the vibration group of the plane, on both its sides with the possibility of receiving throwing oscillations with the component up for pneumatic tables and with the component down for screenings.
    3. Installation according to claim 1, characterized in that it is provided with a dividing wall for separating the V-shaped cavity on the side of the suction branch of the fan into at least one upper and one lower suction chamber, and adjustable air throttles installed in each suction chamber
    4. Installation according to Claim 1, characterized in that it is provided with a vertical pneumatic separator, the loading nozzle of which communicates with the lower part of the upper pneumatic table.
    5. Installation according to claims 1–4, it is equipped with an air duct with a dust separator, the upper part of the duct communicating with the suction branch of the fan, and the lower part with the cavity between the lower pneumatic table and the wall of the housing .
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    in l
    权利要求:
    Claims (5)
    [1]
    The claims 25
    1 o Installation for dry preparation for grinding cereal food and feed product, including a housing, inside of which is a friend. 30, two parallel vibrating pneumatic tables, a loading device located in the upper part of the casing, and a fan for creating an air flow penetrating both pneumatic tables, characterized in that, in order to improve the quality of product preparation and plant productivity at preserving its compactness, it is equipped with two inclined vibrating screens with a pallet parallel to each other under the loading device, while the space dy lower ends of the screens and the upper part of the boot
    185 '12 of the pneumatic table are interconnected by means of a bypass channel, screens and pneumatic tables are made in the form of one vibration group and are located under each other with the possibility of forming a V-shaped cavity between the pallet and the upper pneumatic table, the suction branch of the fan is in communication with the expanded part V- shaped cavity, and the bypass channel with its narrowed part.
    [2]
    2, Install pop. 1, characterized in that the drive of the vibrating group is located on a horizontal plane passing through the center of gravity of the vibrating group on both sides with the possibility of throwing vibrations with the component up for pneumatic tables and with the component down for screens.
    [3]
    3. Install pop. 1, characterized in that it is provided with a partition wall for dividing the V-shaped cavity from the side of the suction branch of the fan into at least one upper and one lower suction chambers, and adjustable air chokes installed in each suction chamber.
    [4]
    4 .. Installation pop. 1, characterized in that it is equipped with a vertical pneumatic separator, the loading pipe of which is in communication with the lower part of the upper pneumatic table.
    [5]
    5, Installation according to claims 1 to 4, with the exception of the fact that it is equipped with an air duct with a dust separator, with the upper part of the duct connected to the suction branch of the fan, and the lower part with the cavity between the lower pneumatic table and the wall of the body.
    FIG. 3
    Compiled by S. Shestakova Editor A. Kozoriz Tehred L. Oliinyk Corrector T. Malets
    Order 1023 Circulation 374 Subscription
    VNIIIPI of the State Committee for Inventions and Discoveries under the State Committee for Science and Technology of the USSR 113035, Moscow, Zh-35, Raushskaya nab., D * 4/5
    Production and Publishing Plant Patent, Uzhhorod, vul. Gagarina, 101
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1641185A3|1991-04-07|Apparatus for dry preparation of cereal products and animal feed for milling
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    US143346A|1873-09-30|Improvement in middlings-purifiers
    CN108405068A|2018-08-17|The manufacture craft and system of low spot glutinous rice flour in high precision
    SU1634339A1|1991-03-15|Grain cleaning machine
    HU204450B|1992-01-28|Method and apparatus for dry-grinding preparation granular-like foodstuffs and fodder
    同族专利:
    公开号 | 公开日
    DE3771495D1|1991-08-22|
    CN87101243A|1988-06-22|
    CH672440A5|1989-11-30|
    AT65194T|1991-08-15|
    CN1009620B|1990-09-19|
    US4971684A|1990-11-20|
    JPH01501531A|1989-06-01|
    AU8330687A|1988-06-30|
    PL156517B1|1992-03-31|
    KR890700408A|1989-04-24|
    WO1988004204A1|1988-06-16|
    KR930008288B1|1993-08-27|
    JPH0651176B2|1994-07-06|
    ES2008362A6|1989-07-16|
    UA6002A1|1994-12-29|
    PL269157A1|1988-09-01|
    EP0293426B1|1991-07-17|
    EP0293426A1|1988-12-07|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH4780/86A|CH672440A5|1986-12-01|1986-12-01|MD94-0172A| MD220C2|1986-12-01|1987-12-01|Installation for dry preparation for milling of the grain food and fodder product|
    LTRP1215A| LT2543B|1986-12-01|1993-09-28|INSTRUMENT FOR DRY PREPARATION OF CEREAL AND NUTRIENT PRODUCTS|
    LV931213A| LV5662A3|1986-12-01|1993-11-12|Catches the grain and fodder grain for dry preparation of malsan|
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