• 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:
    The invention relates to a method for compressing the slurry into cylinder package material in compressor (8, 9, 34) and a relative device. Wherein, it uses supplier (1) to feed the slurry into compressor (8, 9, 34); arranges pre-compressor (2) near the supplier (1); since the slurry material that pre-compressed into slurry mesh can be supplied to the compressor (8, 9, 34) that compressing the package material, the compressor can compress more slurry material in each compress cycle; therefore, the invention can reduce the number of compress cycle when producing the package material in preset weight.
    公开号:SE532630C2
    申请号:SE0600928
    申请日:2006-04-27
    公开日:2010-03-09
    发明作者:Herbert Friedl；Thomas Radauer；Figer Ute；Walter Writzel
    申请人:Andritz Ag Maschf；
    IPC主号:
    专利说明:

    35 532 B30 2 Thereby the number of pressing procedures can be reduced to manufacture a bale with a predetermined weight. In a preferred embodiment of an invention, the pre-densified cellulose web is divided into two substantially equal sub-webs. This division of the cellulose stream into two substreams is admittedly known per se in the art, however, this is easily and precisely possible by the inventive method, since the cellulose web can be more easily distributed e.g. with lower construction costs.
    The pre-densification unit is ideally arranged in the area of a channel arranged in front of the press, before the cellulose web is divided as described. In a preferred embodiment of the invention, it is characterized in that the pre-densifying device has two continuously circumferential, endless and preferably air-permeable bands, between which facing sections of cellulose are pre-densified, and that the facing sections in the conveying direction of the cellulose run conically on each other. furthermore it may be provided that the gap width between the facing sections, in particular the gap width at the outlet-side end, is adjustable, and in particular that the force with which the two bands are pressed against each other is adjustable with a constant value. In this way, the pre-sealing device can be constructed very constructively, whereby irregularities in the material supply through the adjustable gap width at preferably constant pressing force can be equalized, whereby clogging and machine damage can be prevented. In a preferred embodiment, the pre-densified cellulose is weighed before being fed to the press. In an embodiment in which the pre-densified cellulose web is divided into two substantially equal sub-webs, it can happen that the division of the pre-densified cellulose web takes place by means of the weighted sub-web mass in such a way that the two sub-webs have substantially equal masses. is provided that when the weighing of the sub-paths takes place in weighing chambers and that a filling opening of each weighing chamber is closed, when the weight sum of the cellulose in the two weighing chambers has reached a predetermined total weight.
    Constructively, this can be done so that the channel after the pre-densification device can be divided into two sub-channels, wherein in the transition area of the channel to the two sub-channels there is a separating device for the cellulose web emerging from the pre-densification device, it being further provided that in each sub-channel a weighing device.
    In the invention, the division of the individual cellulose webs is thus carried out in such a way that the weight of each sub-web is registered and controlled in such a way that in each weighing device there is substantially the same amount of cellulose. When the measurement of the cellulose weight by the weighing devices due to different influences can not always be completely accurate, in a further embodiment of the inventive method it is provided that the pre-pressed bales are weighed and that the weight measurement in the weighing chambers or the supply of cellulose to the weighing chambers by means of the measured bale weight is corrected in case of deviations from the sum of the measured partial weight.
    The final bale weight is thus measured and in the event of a deviation of the subweights, e.g. the sum of the sub-weights of the weighing devices is either the measurement with a correction factor or the supply of cellulose in the individual weighing chambers is corrected, i.e. shortened or lengthened, that the final weight of the bales is in the range of the permissible or desired tolerances. The discontinuous supply and discharge of the cellulose into and out of the weighing chambers of the weighing device can be designed so that in each subchannel over the existing weighing chamber at the machine frame a shut-off device, preferably in the form of dampers, is stored, and that the weighing chamber the lower end has an emptying opening which can be closed by means of a shut-off device stored at the weighing chamber, preferably in the form of a damper. Due to the fact that the dampers over the weighing chamber are attached to the machine frame, the weight of the cellulose webs continuously supplied in the area above the weighing chambers is not measured and by the arrangement of dampers over the weighing chamber e.g. at the emptying opening of the weighing chamber, a very simple discontinuous control of the measuring process and the further supply of cellulose to the press can be controlled.
    Further preferred embodiments of the invention are the subject of the other subclaims.
    Further features and advantages of the invention will become apparent from the following description of a preferred embodiment of the invention.
    Fig. 1 shows a schematic section through an inventive device, Fig. 2 a schematic side view of the upper part of the device and Fig. 3 a perspective view of a weighing device used in the inventive device.
    The device shown in Fig. 1 consists in summary of the following components: A supply channel 1, through which dried cellulose is supplied, thereby connecting a deaeration f e.g. pre-densification unit 2, a distribution unit 3, two sub-channels 4, two weighing units 5, two antechambers 6 with slider 7 and a press chamber 8 with a press piston 9. The pre-densification unit 2 is shown in section in Fig. 2 and consists in the embodiment shown of two endless circumferences band 10, which between them forms a densifying space 11, which is substantially wedge-shaped and tapered from below.
    In the exemplary embodiment shown, the circumferential, air-permeable belts 10 are passed around five rollers and over a sliding surface of a perforated plate 12 at a suction slide 13. Since the belts 10 are air-permeable, the compressed air in the draft from the pre-seal can sucked out of the suction box 13 through the belts 10. The uppermost roller 14 is a breaking roller, on which follows the suction box 13 and two pressure rollers 15 and 16 in the direction of movement of the belt 10. In the lowest deflection area of the belt 10 a drive roller 17 is arranged and on the side opposite the suction box 13 a control roller 16.
    Cellulose coming from a drying plant enters from above in the supply channel 1, reaches the wedge-shaped densifying space 11 between the two circumferential bands 10, whereby it becomes strongly densified. The vertical arrangement of the straps 10 e.g. the densification space 11 has that it supports the weight of the cellulose.
    The densification ratio can, for example, amount to 1:20. After the exit of the densified cellulose web, this again expands slightly, nevertheless the future pre-densification corresponds to a ratio of about 1: 4. the advantage The gap distance between the press rollers 15, 16 and the drive roller 17 is maintained by a hydraulic cylinder (not shown) with a pressure in the region of an adjustable dimension, whereby e.g. the right band 10 resp. the frame, on which it is arranged, is rotatably mounted in its upper area, so that the lower end can pivot along the double pulley 18. The hydraulic cylinder engages on this right band resp. this frame. Due to the pivotable bearing and the constant sustained pressure, irregularities in the material supply can be released by the swinging of the right belt 10 and a consequent enlargement of the gap, whereby clogging and machine damage can be prevented.
    Under the pre-densification unit 2, the supply channel is divided into two sub-channels 4, whereby the fiber mat is divided into two webs. To divide the fiber mat, a separating device is provided, for example, in the form of a knife 19, which can be pivoted at an angle of, for example, 10 °. Thereby it is possible to change the available proportion of fibrous material falling in the left and in the right subchannel 4.
    The subsets of the fibrous material then fall into a buffer channel 20, the lower end of which can be closed by pivotable dampers 21. Below the dampers 21 is the weighing unit 5, which can be constructed as shown in Fig. 3. The weighing unit 5 has in the described embodiment a weighing chamber 22 with four walls 23 and 24, which slope towards each other substantially truncated pyramid-shaped, so that the cross-section of the weighing chamber 22 is destroyed from above and below. From above, the weighing chamber 22 is open and above it are the dampers 21. At its lower end, the weighing chamber 22 has a pair of further dampers 25, which can be seen in Fig. 1. For opening and closing these dampers, pressure medium cylinder 26 is provided, which via lever 27 is connected to the dampers 25. On a wall 23 are two sight windows 28 and a vent pipe 29. The weighing chamber 22 is suspended at three points on the machine frame 30, the three the points are measuring cells 31 for measuring the weight of the weighing chamber 22 and the content, i.e. the existing amount of cellulose present in the weighing chamber. Since the specific gravity of the weighing chamber 22 with the associated superstructures is known, the actual weight of the cellulose present in the weighing chamber can be determined by the measuring cells 31.
    Below the dampers 25 of each weighing chamber 22 there are arranged antechambers, in which the material to be densified falls after the exit from the weighing chambers 22. Above the antechambers 6 there are arranged flat slides, which are closed after the filling of the antechambers. The material present in the antechambers 6 is conveyed, as is known in the prior art, by means of the slide 7 symmetrically inside the press chamber 8 and thereby further densified, before the press piston 9 finally pushes the cellulose material into the press chamber and densifies to its final volume. Above the press chamber 8 is a further flat slide 33, with which the press chamber can be closed.
    The operation of this device is as follows: a mixture of cellulose flocks with a dryness content of e.g. 88% and air leaves e.g. a cooling cyclone with a temperature of about 70 ° C. This cellulose flock falls into the supply channel 1, which in operation is filled to 50 to 75%. The specific gravity of the flock of fibrous material causes an accelerated supply of material in the pre-densification unit 2 arranged below, in which the cellulose is aerated between the two aeration bands 10 and densified into a porous fibrous mat. After leaving the pre-densification unit 2, the volume of the cellulose web amounts to about a quarter of the volume of the original fiber flock. In the distribution unit 3, the web of material is divided.
    The division ratio is optimized corresponding to the measurements from the weighing chambers, ie. that the division ratio is continuously set resp. is corrected so that in both weighing chambers 22 substantially the same amount of cellulose is taken up.
    Furthermore, if necessary, the disintegrated fibrous web falls into individual parts in the existing buffer channel 20 and through open dampers 21 in the weighing chambers 22. As soon as the presettable weight of the cellulose in the weighing chambers 22 is reached, the dampers 21 are closed so that the further the buffer channels 20. Simultaneously resp. immediately connecting, the lower dampers 25 of the weighing unit 5 are opened, so that the fibrous material can fall into the underlying antechambers 6. As soon as the weighing chambers are completely emptied, the lower dampers 25 are closed and the upper dampers are opened, so that again cellulose from the buffer channels 20 can fall into the weighing chambers 22. The thereby displaced air flows out through the vent pipe 29. The upper dampers 21 remain open only until the desired filling weight of the weighing chambers is reached.
    Meanwhile, the planar slide 32 closes over each of the antechambers 6, so that the slide 7 of the now comprehensively closed antechamber 6 can push the material into the press chamber 8. The slide 7 then remains in this front position and forms side walls of the press chamber 8 while 532. 5312! 6 the press piston 9 densifies the material to its final volume. While the press piston 9 returns to its upper position, the weighing chambers 22 empty again in the antechambers 6 for a further press procedure, whereupon the slide 7 pushes the material to the press chamber and the press piston finally densifies the material in the press chamber 8. After e.g. every second pressing procedure, a bale is finally completed and the flat slide 33 projects over the press chamber 8, whereupon the press chamber 8 surrounding the press mold 34 can lower itself, so that the bales can be pushed out.
    Thereafter, the bale ejector returns to its initial position, the press mold rises again for the next press procedure and the face slide 33 is retracted again.
    The pre-densification unit 2 of the device can therefore operate continuously, while the weighing of the cellulose and the final pressing thereof into a bale takes place discontinuously.
    In summary, an embodiment of the invention can be described as follows: In a method and a device for densifying cellulose flock to a preferably prismatically shaped bale, the cellulose is conveyed to a press 8, 9, 34 over a supply device 1. In the area of the supply device 1 is a pre-densifying device 2 arranged. Since the press 8, 9, 34, in which the bale is finished pressing, is fed with pre-densified cellulose in a cellulose web, a considerably larger amount of cellulose can be pressed during pressing in the press 8. 9, 34 in each pressing procedure. This allows the number of pressing procedures to be reduced to produce a bale with a predetermined total weight.
    权利要求:
    Claims (16)
    [1]
    A method for densifying cellulose fl and to preferably prismatically shaped bales in a press (8, 9, 34), wherein the cellulose fl yoke before the press (8, 9, 34) is continuously pre-densified in a cellulose web, characterized in that the pre-densified cellulose web is divided into two substantially equal subways and then finally densified in the press (8,9,34).
    [2]
    Process according to Claim 1, characterized in that the pre-densified cellulose flock is weighed.
    [3]
    Process according to Claim 1 or 2, characterized in that the pre-densified cellulose flock is weighed discontinuously.
    [4]
    Method according to one of the preceding claims, characterized in that the division of the pre-densified cellulose web into the two sub-webs takes place so that the weight for each sub-web becomes substantially equal.
    [5]
    Method according to one of the preceding claims, characterized in that the weighing of the sub-paths takes place in weighing chambers (22) and that a filling opening of each weighing chamber (22) is closed when the sum weight of the cellulose flock in the two weighing chambers (22) reaches a predetermined total weight.
    [6]
    Method according to claim 4, characterized in that the pre-pressed bale is weighed and that the weight measurement in the weighing chambers is corrected by means of the measured bale weight in deviations from the sum of the measured partial weights so that either the measurement is corrected by a correction factor or the supply of cellulose in 532 639 de the individual weighing chambers are corrected, ie shortened or lengthened so that the final weight of the bales is in the range of the permissible or desired tolerances. IN
    [7]
    Device for densifying cellulose fl and to a preferably prismatically shaped bale in a press (8, 9, 34) with a device for supplying cellulose fl also to the press (8, 9. 34), wherein a continuously operating pre-densifying device (2) is arranged , characterized in that the device for supplying cellulose fl also has a channel (1) arranged before the press (8, 9, 34) in which the pre-densifying device (2) is arranged, and that two sub-channels (4) are arranged after the pre-densifying device (2) which connect the channel (1) to the press (8, 9, 34), a separating device (19) being arranged between the pre-densifying device (2) and the two sub-channels (4).
    [8]
    Device according to Claim 7, characterized in that the pre-densification device (2) has two continuous, endless and preferably air-permeable strips (10), between the facing sections of which the cellulose flock is pre-densified.
    [9]
    Device according to Claim 8, characterized in that a gap width between the sections facing each other, in particular the gap width at an outlet-side end, is adjustable.
    [10]
    Device according to claim 8 or 9, characterized in that the force with which the two belts (10) are pressed against each other is adjustable and constant.
    [11]
    Device according to Claim 7, characterized in that the separating device (19) is arranged to be adjustable. 532 630 9
    [12]
    Device according to one of Claims 7 to 11, characterized in that the separating device (19) is a knife.
    [13]
    Device according to one of Claims 7 to 12, characterized in that a weighing device (5) is arranged in each sub-channel (4).
    [14]
    Device according to claim 13, characterized in that the weighing device (5) comprises a weighing chamber (22), which is arranged at the machine frame (30) via preferably three weight measuring devices (31),
    [15]
    Device according to claim 14, characterized in that a locking device, preferably in the form of a damper (21), is arranged at the machine frame (30) in each sub-channel (4) and over the weighing chamber (22).
    [16]
    Device according to Claim 14 or 15, characterized in that the weighing chamber (22) has, in the region of its lower end, an emptying opening which can be closed by a locking device arranged at the weighing chamber (22), preferably in the form of a damper (25).
    类似技术:
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    同族专利:
    公开号 | 公开日
    SE532630E|2014-06-18|
    NO20061879L|2006-11-07|
    AT502387B1|2007-03-15|
    AT502387A4|2007-03-15|
    FI20060404A|2006-11-07|
    SE0600928L|2006-12-06|
    CN1858351A|2006-11-08|
    FI20060404A0|2006-04-28|
    CN1858351B|2011-05-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB879422A|1958-08-28|1961-10-11|Waldemar Lindemann|Improvements relating to apparatus for baling fibrous material|
    US3868809A|1974-04-15|1975-03-04|Woodrow W Bledsoe|Fiber baling apparatus|
    SE455859B|1982-08-26|1988-08-15|Olov Erland Gustavsson|SET AND APPARATUS FOR PACKAGING ELASTICALLY COMPRESSABLE MATERIAL|
    IT1266161B1|1994-07-08|1996-12-23|Scott Paper Co|APPARATUS AND PROCEDURE FOR PACKING PAPER ROLLS WRAPPED ON A SOUL AND CRUSHED.|
    AU3138895A|1994-08-05|1996-03-04|Fishburne International, Inc.|Method and apparatus for producing compressed fibers|
    IT1305065B1|1998-12-29|2001-04-10|Tiziano Bielli|DOUBLE STATION PRESS FOR TEXTILE MATERIAL|AT502674B1|2005-05-06|2007-05-15|Andritz Ag Maschf|Method for pressing plasm in presser involves preferring slurry pressing for prism-shaped packaging material|
    DE102012112804A1|2012-12-20|2014-06-26|Krones Ag|Manufacturing and packaging system and method for producing and packaging pressed bodies of biological material|
    AT517265B1|2015-05-29|2018-04-15|Andritz Ag Maschf|Apparatus for compacting pulp flakes|
    法律状态:
    2017-07-25| RPOP| Patent has been republished in amended form after opposition|
    2018-12-04| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    AT0078005A|AT502387B1|2005-05-06|2005-05-06|Bale pressing method for cellulose flocks, comprises weighing cellulose supplied to press|
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