US3709441A - Machine for disintegration of cellulose pulp sheets - Google Patents

Machine for disintegration of cellulose pulp sheets Download PDF

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Publication number
US3709441A
US3709441A US00118460A US3709441DA US3709441A US 3709441 A US3709441 A US 3709441A US 00118460 A US00118460 A US 00118460A US 3709441D A US3709441D A US 3709441DA US 3709441 A US3709441 A US 3709441A
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United States
Prior art keywords
machine
rods
tearing tooth
magazine
disintegration
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Expired - Lifetime
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US00118460A
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English (en)
Inventor
H Hessner
P Nilsson
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Stille Werner AB
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Stille Werner AB
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/06—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods
    • D21B1/066—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being pulp sheets

Definitions

  • ABSTRACT A machine for disintegration of cellulose pulp sheet which comprises an essentially vertical magazine to receive pulp sheet bales with the sheets preferably lying horizontally, said magazine having a bottom consisting of a bed of slightly spaced, mutually parallel tearing tooth rods which are longitudinally relatively movable to one another and may include two groups which are alternately movable in opposite directions.
  • One known device for the disintegration of cellulose pulp is the so called hammer mill which, however, has the inherent disadvantage as far as the raw material is concerned that it is limited to work with pulp webs on rolls.
  • cellulose pulp is commonly delivered in sheets, packed in bales, attempts have been made to come to a disintegration or dry defibration directly from the bales.
  • One such proposal involves the use of a plurality of parallel saw or tearing tooth chains which act on the bales from one side. The results heretofore achieved are not satisfying from the quality point of view, and furthermore it has been found that the power demand is too high; also, such proposed machines with saw or tearing tooth chains are comparatively susceptible to operational disturbances.
  • apparatus comprises an essentially vertical magazine to receivepulp sheet bales with the sheets preferably lying horizontally, said magazine having a bottom consisting of a bed of slightly spaced, mutually parallel tearing tooth rods which are longitudinally relatively movable to one another and may include two groups which are alternately movable in opposite directions.
  • FIG. 1 is a perspective view, partly in section, of apparatus according to the present invention
  • FIG. 2 is a perspective view of a complete disintegrating machinery, including the apparatus of FIG. 1.
  • the apparatus of FIG. 1 comprises a frame which supports an at least essentially vertical magazine 11 which may be open on one side to permit inspection of the supply of pulp sheets therein. At least the upper part of the magazine has two flaps 13,14 which may be swung sidewardly by means of hydraulic or pneumatic cylinders 12 to permit loading of cellulose pulp sheet bales from one side, e.g. by means of a fork lift truck.
  • the pile of pulp sheets has been denoted 15.
  • the bottom of the magazine on which the pile of pulp sheet rests comprises a bed of slightly spaced tearing tooth bars 16.
  • the bars 16 are divided into two groups, with the bars of each group disposed alternately with the bars of the other group and with the bars 16 of both groups longitudinally movable to-and-fro, alternately in opposite directions.
  • the movement is in this case accomplished by means of a crank and lever mechanism, generally denoted 17, which over a suitable transmission 18 is driven by means of an electric motor 19.
  • a crank and lever mechanism generally denoted 17 which over a suitable transmission 18 is driven by means of an electric motor 19.
  • a plurality of different drive mechanisms may be used to drive the toothed rods 16 to-and-fro through a suitable stroke which may be variable, if desired, and with a suitable frequency, it has been deemed unnecessary to disclose such mechanisms in more details.
  • the rods 16 of each group are preferably rigidly interconnected and the respective groups are guided on guide rails 20 over rollers 21,22.
  • stripping plates 23,24 which have teeth or protrusions extending down between the rods 16. Such plates with protrusions prevent the pulp from passing out laterally for which reason the pulp falls down a hopper 25 or the like to a conveyor (not shown in FIG. 1) or directly to a mill or the like for a continued disintegration.
  • the design of the teeth of the rods 16 and the mutual spacing between such rods as well as the stroke and frequency thereof may be varied as necessary. For certain applications, it would also be possible to arrange only some of the rods movable whereas the others may be arranged stationary.
  • the pulp sheets are not drydefibrated entirely in the machine in FIG. 1 so it may be used directly as fluff in diapers or similar absorbant pads, for example, moreover, the machine in FIG. 1 should preferably be followed by some other machine, such as a hammer mill, for instance, which brings about the final dry defibration.
  • some other machine such as a hammer mill, for instance, which brings about the final dry defibration.
  • a subsequent machine will have such a great capacity and gives a product of such a high quality that the use of a machine as shown in FIG. 1 in a precedent step is more than well justified.
  • FIG. 2 shows a machine for drydefibration of cellulose pulp to be used as fluff" or absorbent filler in diapers, sanitary pads and the like.
  • This machinery comprises a disintegrator, generally denoted 50, which is preferably of the kind as shown in FIG. 1.
  • the pulp sheet pieces are fed down on to a conveyor 51, driven by a drive mechanism 52.
  • the conveyor 51 brings the pulp sheet pieces upwardly to the upper end of a mill 53, from which the still further disintegrated pulp sheet pieces are brought upwardly by means of a second conveyor 54, and areplaced on a further overhead conveyor 55 which may run horizontally beneath the ceiling of a diaper plant, for instance.
  • a guide 56 diverts the pieces off from the overhead conveyor 55 into a hopper 57; preferably the plant has one such hopper 57 for each manufacturing line in the plant, in which case the guide 56 may take only a part of the mass off from the overhead conveyor 55 for each hopper.
  • the hopper 57 stores a supply 58 of disintegrated pulp which may be ready for use or nearly ready for use.
  • the bottom of the hopper is constituted by the upper flight of an endless belt 59, driven in the direction indicated by arrow A, and one side wall of the hopper is constituted by the inner flight of another endless belt 60, driven in the direction as indicated by arrows B.
  • These conveyors or belts 59 and 60 which have serrated surfaces or surfaces with protrusions, ridges or the like, serve to bring about a mixing action in the pulp supply 58 to make it uniform in consistency.
  • a brush roller 61 serves to take out the disintegrated pulp from a slot between belts 59 and 60.
  • a machine for disintegration and drydefibration of cellulose pulp sheets comprising an essentially vertical magazine to receive pulp sheet bales with the sheets lying horizontally, said magazine having a bottom consisting of a bed of slightly spaced, mutually parallel tearing tooth rods, of which at least some are longitudinally movable to-and-fro, said tearing tooth rods being divided into two groups which are alternately movable in opposite directions.
  • a machine as claimed in claim 1 further including stripper plates disposed transversely of said rods at the ends of the tearing tooth rod bed.
  • a machine for disintegration and drydefibration of cellulose pulp sheets comprising an essentially vertical magazine to receive pulp sheet bales, said magazine having a bottom consisting of a bed of slightly spaced, mutually parallel tearing tooth rods longitudinally relatively movable to one another.
  • a machine as claimed in claim 7 further including stripper plates having protrusions extending down between the tearing tooth rods disposed transversely of said rods at the ends of the tearing tooth rod bed.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
US00118460A 1970-02-24 1971-02-24 Machine for disintegration of cellulose pulp sheets Expired - Lifetime US3709441A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE02362/70A SE334811B (de) 1970-02-24 1970-02-24

Publications (1)

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US3709441A true US3709441A (en) 1973-01-09

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US00118460A Expired - Lifetime US3709441A (en) 1970-02-24 1971-02-24 Machine for disintegration of cellulose pulp sheets

Country Status (7)

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US (1) US3709441A (de)
CH (1) CH513286A (de)
DE (1) DE2108744A1 (de)
FR (1) FR2083123A5 (de)
GB (1) GB1302985A (de)
SE (1) SE334811B (de)
SU (1) SU413685A3 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863847A (en) * 1973-07-26 1975-02-04 Georgia Iron Works Co Foundry sand reducer and reclaimer
DE2605604A1 (de) * 1975-02-12 1976-08-26 Joa Curt G Inc Verfahren und vorrichtung zur herstellung von zerfaserten zelluloseflocken
US4146183A (en) * 1976-09-17 1979-03-27 Westvaco Corporation Pressed pulp bale shredder
US5340038A (en) * 1992-10-27 1994-08-23 Omann Lawrence F Material reduction apparatus
US6129299A (en) * 1996-06-18 2000-10-10 Jackson; Daniel W. Bulk material handling system with a sloughing wall
US20110100257A1 (en) * 2009-10-29 2011-05-05 Omann James S Method of making paving composition without adding asphalt content oil or minimizing addition
US20140097279A1 (en) * 2012-10-09 2014-04-10 Shenzhen China Star Optoelectronics Technology Co., Ltd. Scrapped glass pulverizing device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110102197A (zh) * 2019-05-23 2019-08-09 南阳市中心医院 一种医疗高血压的内用药物的混合装置
CN111994395A (zh) * 2020-08-25 2020-11-27 安德里茨（中国）有限公司 浆包散包器及方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US208890A (en) * 1878-10-15 Improvement in machines for reducing wood to paper-pulp
US868617A (en) * 1907-04-16 1907-10-15 Michael Scozzari Machine for granulating magnesia.
US2342213A (en) * 1943-04-07 1944-02-22 Ostrander Dezell Ice machine
US3502275A (en) * 1968-09-20 1970-03-24 Charles L Watson Soil conditioner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US208890A (en) * 1878-10-15 Improvement in machines for reducing wood to paper-pulp
US868617A (en) * 1907-04-16 1907-10-15 Michael Scozzari Machine for granulating magnesia.
US2342213A (en) * 1943-04-07 1944-02-22 Ostrander Dezell Ice machine
US3502275A (en) * 1968-09-20 1970-03-24 Charles L Watson Soil conditioner

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863847A (en) * 1973-07-26 1975-02-04 Georgia Iron Works Co Foundry sand reducer and reclaimer
DE2605604A1 (de) * 1975-02-12 1976-08-26 Joa Curt G Inc Verfahren und vorrichtung zur herstellung von zerfaserten zelluloseflocken
US4146183A (en) * 1976-09-17 1979-03-27 Westvaco Corporation Pressed pulp bale shredder
US5340038A (en) * 1992-10-27 1994-08-23 Omann Lawrence F Material reduction apparatus
US6129299A (en) * 1996-06-18 2000-10-10 Jackson; Daniel W. Bulk material handling system with a sloughing wall
US20110100257A1 (en) * 2009-10-29 2011-05-05 Omann James S Method of making paving composition without adding asphalt content oil or minimizing addition
US8382362B2 (en) 2009-10-29 2013-02-26 James S. Omann Method of making paving composition without adding asphalt content oil or minimizing addition
US20140097279A1 (en) * 2012-10-09 2014-04-10 Shenzhen China Star Optoelectronics Technology Co., Ltd. Scrapped glass pulverizing device
US9227195B2 (en) * 2012-10-09 2016-01-05 Shenzhen China Star Optoelectronics Technology Co., Ltd Scrapped glass pulverizing device

Also Published As

Publication number Publication date
DE2108744A1 (de) 1971-09-09
SE334811B (de) 1971-05-03
GB1302985A (de) 1973-01-10
CH513286A (de) 1971-09-30
FR2083123A5 (de) 1971-12-10
SU413685A3 (de) 1974-01-30

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