• 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 weight device (5) to weight the slurry before sending the slurry material to the compressor (8, 9, 34); therefore, the slurry weight fed to the compressor (8, 9, 34) is the same as the last package material.
    公开号:SE532631C2
    申请号:SE0600927
    申请日:2006-04-27
    公开日:2010-03-09
    发明作者:Herbert Friedl；Thomas Radauer；Figer Ute；Walter Writzl
    申请人:Andritz Ag Maschf；
    IPC主号:
    专利说明:

    In a preferred embodiment of the invention, the supply stream of cellulose flock is divided into several preferably two substreams, whereby the press can be supplied with at least two substreams of cellulose flock and the weight of these substreams is measured. This embodiment of the invention utilizes the advantage of supplying the press with partial flows of cellulose flock from two sides, whereby the number of pressing procedures for manufacturing a bale can be reduced. In a preferred further development of the invention, it is further provided that the supply of the individual substreams of cellulose flock takes place by means of the weighted substream mass in such a way that the two substreams have substantially equal mass.
    In this embodiment of the invention, the division of the fiber stream into substreams is controlled in such a way that both substreams have substantially the same mass. In the previously mentioned embodiment, where the weight of each partial current was measured, it is true that there is also the possibility that the supply of cellulose flock takes place in such a way that the end weight of the bale is exactly correct. In the embodiment with two substreams with substantially equal mass, it is admittedly guaranteed that in the two-sided pressing procedure two substantially identical amounts of cellulose are pressed.
    It is known from the prior art to divide a continuous stream of cellulose flock into the at least two substreams. But in the invention this can be improved by the fact that the division of the cellulose stream into the at least two substreams takes place by means of the weighted substreams in such a way that the two substreams have substantially equal mass. That is, that the division into substreams does not take place conditionally or substantially unregulated, but that deviations of the substreams from the ideal weight can be corrected immediately. In a preferred embodiment of the method according to the invention, the weighing of the partial streams can take place in the weighing chambers, whereby a filling opening is closed in each weighing chamber, when the sum weight of. the cellulose in the weighing chambers reaches a predetermined total weight. In this embodiment of the invention, it is guaranteed that, regardless of the individual weight of the cellulose in the individual weighing chambers, the total weight of the cellulose pressed in the present pressing procedure corresponds to the predicted weight. Also in this embodiment of the invention it is present that the division of in the two substreams takes place in such a way that the cellulose weight in the weighing chambers is substantially equal, since in this way a symmetrical distribution of the substream is given. the cellulose stream Alternatively, it is also possible that the partial currents are weighed in the weighing chambers and that the filling opening is closed at each weighing chamber when the weight of the cellulose in the existing weighing chamber has reached a predetermined weight. In this case, each weighing chamber is closed as soon as the weight of the cellulose in it has reached the predetermined weight, so that one does not have to consider a correct division of the substreams and yet an exact achievement of the total weight of the bale is possible.
    Since it is possible that, due to different influences of the measured weight, not sufficiently accurately complying with the actual weight of the cellulose, in one embodiment of the invention it can be provided that the pre-pressed bale is weighed and that the weight measurement in the weighing chamber or the supply of cellulose in the weighing chamber is corrected. by means of the measured bale weight in the event of deviations from the sum of the measured sub-weights. Thereby an equalization of the actual weight of the bale takes place with the measured weights of the substreams, so that a correction can be made of the measurement and / or the supply of the substreams to the press.
    In order to be able to carry out the method of pressing the cellulose flock to a bale more quickly, in a further development of the invention it may be provided that the cellulose flock can be pre-densified before the division into the at least two substreams. By pre-densification it is possible to supply the press with cellulose in a higher density, so that fewer pressing procedures are required to achieve the final weight of the bale.
    In the device according to the invention, the weighing device can be arranged in a channel, through which the cellulose is supplied to the press. Furthermore, in the device according to the invention it can be provided that the channel is divided into at least two sub-channels, and that a weighing device is arranged in the area of each sub-channel. This embodiment offers, as mentioned, the possibility, in each subchannel, of accurately registering the weight of the substream of the cellulose, in order to be able to precisely control the division of the fibrous material stream into substreams and the supply thereof to the press.
    Further preferred embodiments of the invention are the subject of the other subclaims.
    Hereinafter, a preferred embodiment of the invention will be described with reference to the drawings.
    Fig. 1 shows a schematic section through an inventive device, Fig. 2 a schematic side view of an upper part of the device and Fig. 3 a perspective view of a weighing device used in the inventive device.
    The device described in Figs. 1 to 3 consists in summary of the following components: a supply channel 1, through which dried cellulose is supplied, at the connecting a deaeration or 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 mold 34 and with a press piston. The pre-densification unit 2 is shown in section in Fig. 2 and in the embodiment shown consists of two endless circumferential bands 10, which between them form a densification space, which is made substantially wedge-shaped and tapers downwards.
    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 box 13. Since the belts are air-permeable, the extruded air can be extracted by the draft from the pre-densifier. from the suction box 13 through the belts 10. The uppermost roller 14 is a tensioning roller, on which two press rollers 15 follow in the direction of movement of the belt 10. In the lower deflection area of the belt 10 a drive roller 17 is arranged The construction of these two, opposite, constructions is essentially identical.
    Cellulose flock, which comes from a drying plant, enters from above in the supply channel 1, reaches into the wedge-shaped densification space 11 between the two circumferential bands 10, whereby it is strongly pre-formed. The vertical arrangement of the straps 10 resp. the densification space 11 has the advantage that the weight of the cellulose supports the pre-densification. The densification ratio can, for example, amount to 1:20. After the exit of the densified cellulose web, it is relieved again, the future pre-densification nevertheless corresponding to a ratio of about 1: 4.
    The gap distance between the drive rollers 17 is maintained by a hydraulic cylinder (not shown) with a constant applied pressure in the range of an adjustable dimension, however, e.g. the right band 10 resp. the frame, on which this is arranged, is rotatably mounted in its upper area, so that the lower end can pivot along the double arrow 18. The right band resp. its frame is fixedly mounted in the machine frame. The hydraulic cylinder grips both belts 10 resp. both frames. Due to the pivotable bearing and the constant applied pressure, irregularities in the material supply can be smoothed out by the pivoting of the right belt 10 and a consequent enlargement of the gap, whereby blockages and machine damage can be prevented.
    Under the pre-densification unit 2, the supply channel 1 is divided into two sub-channels 4, whereby the cellulose mat is separated into two paths. For the separation of the cellulose mat, a separation device is provided, e.g. in the form of a knife 19, which can be pivoted around an angle of, for example, 10 °. Thereby it is possible to change the present proportion of cellulose, which falls in the left and in the right subchannel 4.
    The subsets of the cellulose webs fall adjoining into buffer channels 20, the lower end of which can be closed with pivotable dampers. Under the dampers 21 is the weighing unit 5, which can be constructed as shown in Fig. 3. In the exemplary embodiment shown, the weighing unit 5 has a weighing chamber 22 with four walls 23 and 24, which are inclined towards each other substantially truncated pyramid-shaped, so that the cross section of the weighing chamber 22 destroyed from top to bottom. Upwards the weighing chamber is open and above it are the dampers 21. At its lower end the weighing chamber 22 has a pair of dampers 25, which can be seen in Fig. 1. To open and close these dampers a pressure medium cylinder 26 is provided, which over a lever 27 is connected to the dampers 25. At a wall 23 there are two viewing windows and a vent pipe 29. The weighing chamber 22 is suspended at three points on the machine frame 30, the measuring points 31 being located at the three points for measuring the weight of the weighing chamber 22 and the contents, i.e. currently cellulose present in the weighing chamber.
    Below each weighing unit 5 resp. their dampers 25 are provided with antechambers 6, in which the material falls to be densified after exiting the weighing chamber. Above the antechambers 6, flat slides 32 are fitted, which are closed after filling the antechambers. The material present in the antechambers 6 is transported, as is known in the prior art, by means of the slide 7 symmetrically inwards to the press chamber 8 and thereby further densified, whereupon the press piston 9 finally pushes the cellulosic material into the press mold 34 and densifies to the final volume. Above the mold 34 is a further planar slide 33, with which the mold 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. The cellulose flock falls into the supply channel 1, which in operation is filled to 50 to 75%.
    The dead weight of the cellulose flock provides an accelerated material supply into the pre-densification unit 2 arranged below it. After exiting the pre-densification unit 2, the volume of this cellulose web constitutes about a quarter of the volume of the original cellulose flock. In the distribution unit 3, the web of material is divided.
    The pitch ratio is optimized corresponding to the measurements from the weighing chambers 22, i.e. that the division ratio is continuously set so resp. corrected so that in both weighing chambers 22 substantially equal amounts of cellulose are taken up.
    Furthermore, the fibrous web which occurs in individual parts falls into the existing buffer channel 20 and when the dampers 21 are opened into the weighing chambers 22. As soon as the presettable weight of the cellulose is reached in the weighing chambers 22, the dampers 21 are closed so that the further falling fiber material webs 20. Simultaneously or immediately thereafter, the lower dampers of the weighing unit 5 are opened, so that the cellulose 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 further cellulose from the buffer channels 20 may fall into the weighing chambers. The air thereby displaced flows out through the vent pipe 29. The upper dampers 21 are open only until the desired filling weight of the weighing chambers has been reached.
    Meanwhile, the face slide 32 closes over each of the pre-chambers 6, so that the slide 7 can push the material of the now all-round closed pre-chamber 6 into the press chamber 8 over the mold 34. The slide 7 then remains in this front position and forms side walls of the press chamber 8 while the press piston 9 densifies the material to its final volume in the press mold 34. While the press piston 9 returns to its upper position, the slide 7 moves backwards. Thereafter, the weighing chambers 22 are emptied again into the antechambers 6 for a further pressing procedure, whereupon the slide 7 pushes the material to the pressing chamber 8 and the pressing piston 9 finally densifies the material in the pressing mold 34. After e.g. every other press procedure completes a bale final.
    The piston 9 presses on the bale. After approx. two seconds, the press mold 34 lowers. After a total of about four seconds, the press piston 9 rises slowly and the face slide 33 is pushed forward, as soon as the press piston 9 releases the path. As a result, the antechambers 6 can be filled again.
    The bales are then pushed out. Thereafter, the bale ejector returns to its initial position, the press mold 34 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 of it into bales takes place discontinuously.
    In summary, an embodiment of the invention can be described as follows: In a method and a device for densifying cellulose flocks to preferably prismatically shaped bales in a press 8, 9, 34, the cellulose is weighed before the supply to the press 8, 9, 34 in weighing devices 5, so that the weight of the cellulose supplied to the press 8, 9, 34 already corresponds to the final bale weight.
    权利要求:
    Claims (18)
    [1]
    Method for densifying cellulose and also for preferably prismatically shaped bales in a press (8, 9, 34), characterized in that the cellulose yoke is weighed before the supply to the press (8, 9, 34) and that the supply of the cellulose flock to the press (8, 9 , 34) is interrupted when a predetermined weight is reached. that a continuous stream of cellulose fl and in a supply channel (1) for supplying cellulose flock is divided into at least two substreams and that the press (8, 9, 34) is supplied with cellulose fl and into at least two substreams, that the weight of the cellulose flock in these substreams is measured and that the supply of the substreams with cellulose flock to the press (8, 9, 34) takes place by means of the weighted substream mass in such a way that the two substreams have substantially equal mass.
    [2]
    Method according to claim 1, characterized in that the cellulose flock is weighed discontinuously.
    [3]
    Method according to one of Claims 1 or 2, characterized in that the partial streams are weighed in weighing chambers (22) and that a filling opening for each weighing chamber is closed when the total weight of the cellulose flock in the weighing chambers (22) reaches a predetermined weight.
    [4]
    Method according to one of Claims 1 or 2, characterized in that the partial streams are weighed in weighing chambers (22) and that a filling opening for each weighing chamber is closed when the weight of the cellulose flock in each weighing chamber (22) reaches a predetermined weight. 532 B31
    [5]
    Method according to one of Claims 1 to 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 the individual weighing chambers are corrected, ie. shortened or lengthened so that the final weight of the bales is in the range of permissible or desired tolerances.
    [6]
    Method according to one of Claims 1 to 5, characterized in that the cellulose flock is pre-densified before the division into the at least two substreams.
    [7]
    A method according to claim 6, characterized in that the cellulose flock is pre-densified continuously smooth cellulose flock web. Device for densifying cellulose flock to a preferably prismatically shaped bale in a press (8, 9, 34) with a supply channel (1) for supplying the cellulose flock to the press (8, 9, 34), characterized in that the supply channel (1) for supply of the cellulose flock is arranged before the press
    [8]
    8. (8.9), that the supply channel (1) is divided into at least two sub-channels (4) via which the cellulose flocks are divided and fed to the press (8, 9, 34), that in each sub-channel (4) a weighing device ( 5), that the antechambers (6) are arranged in connection with each weighing device (5) which is connected to a press chamber (8), and 532 631 that the weighing device (5) has a weighing chamber (22) at which a locking device, preferably in in the form of a damper (21), is arranged at the machine frame (30).
    [9]
    Device according to claim 8, 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).
    [10]
    Device according to one of Claims 8 or 9, characterized in that the weighing chamber (22) has a discharge opening in the region of its lower end which can be closed by a locking device arranged at the weighing chamber (22), preferably in the form of a damper (25).
    [11]
    Device according to one of Claims 8 to 10, characterized in that a pre-densification device (2) is arranged at the device (1).
    [12]
    Device according to Claim 11, characterized in that the pre-densification device (2) is a continuously operating device.
    [13]
    Device according to claim 12, characterized in that the pre-densifying device (2) has two continuous, endless and preferably air-permeable bands (10), between which the cellulose yokes are pre-densified, and that the facing sides run wedge-shaped in the transport direction of the cellulose flock. 532 S31 10
    [14]
    Device according to Claim 12, characterized in that a gap width between the sides facing each other, in particular the gap width at an outlet end, is adjustable.
    [15]
    Device according to Claim 13 or 14, characterized in that the force with which the two belts (10) are pressed against one another is adjustable.
    [16]
    Device according to one of Claims 8 to 15, characterized in that a separating device (19) is located in the transition area between the channel (1) and the two sub-channels (4) of the cellulose web emerging from the pre-densification device (2).
    [17]
    Device according to Claim 16, characterized in that the separating device (19) is adjustable.
    [18]
    Device according to Claim 16 or 17, characterized in that the separating device (19) is a knife.
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    同族专利:
    公开号 | 公开日
    SE0600927L|2006-11-07|
    FI20060405A0|2006-04-28|
    CN1858350B|2012-06-13|
    AT502674B1|2007-05-15|
    NO20061864L|2006-11-07|
    AT502674A4|2007-05-15|
    FI20060405A|2006-11-07|
    CN1858350A|2006-11-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2869296A|1956-07-31|1959-01-20|Mary B Overman|Two-stage bagging machine|
    FR1339470A|1961-12-05|1963-10-04|Sundsvalls Verkst Er Ab|Method and means for baling by compression of fluffy paper pulp|
    US3795084A|1972-08-15|1974-03-05|Richardson Service Division|Packaging apparatus|
    US3908773A|1974-07-22|1975-09-30|Svedala Abra Ab|Devices for progressive throttling to complete shut-off of the discharge in machines for dispensing fluidizable material in weight portions|
    SE455859B|1982-08-26|1988-08-15|Olov Erland Gustavsson|SET AND APPARATUS FOR PACKAGING ELASTICALLY COMPRESSABLE MATERIAL|
    DE3373796D1|1982-12-31|1987-10-29|Hoechst Ag|Method and apparatus for packing fibre flocks into bales|
    AT502387B1|2005-05-06|2007-03-15|Andritz Ag Maschf|Bale pressing method for cellulose flocks, comprises weighing cellulose supplied to press|CN107745834B|2017-11-22|2019-06-21|江苏滋百农生态农业股份有限公司|A kind of storage shunting device of granular fertilizers|
    法律状态:
    2017-06-20| CANC| Patent cancelled, revoked after opposition|
    2018-12-04| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    AT0078105A|AT502674B1|2005-05-06|2005-05-06|Method for pressing plasm in presser involves preferring slurry pressing for prism-shaped packaging material|
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