CN114411439A - Method for treating broken paper in papermaking - Google Patents
Method for treating broken paper in papermaking Download PDFInfo
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- CN114411439A CN114411439A CN202111654438.8A CN202111654438A CN114411439A CN 114411439 A CN114411439 A CN 114411439A CN 202111654438 A CN202111654438 A CN 202111654438A CN 114411439 A CN114411439 A CN 114411439A
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- broke
- pulp
- fluffing
- defibering
- stirring
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
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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
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/342—Mixing apparatus
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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
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/345—Pulpers
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
- D21D5/04—Flat screens
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
- D21D5/04—Flat screens
- D21D5/043—Vibrating screens
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
The invention discloses a treatment method of papermaking broke, which comprises the steps of crushing broke by a broke pulper to obtain broke pulp, and feeding the broke pulp into a broke tower for temporary storage; then leading in a fluffing mechanism, feeding and stirring the pulp waste by the fluffing mechanism through a stirring unit, pushing the pulp waste into the fluffing unit, and fluffing the pulp waste again through the fluffing unit; screening and filtering the defibered broken paper pulp material by a screening mechanism, feeding the screened good broken paper pulp back to a mixed pulp tank for pulp blending, and then participating in a papermaking process; the invention obtains good pulp by arranging the defibering mechanism and the screening mechanism to defiber and screen the damaged pulp materials generated in the papermaking production process, and then the good pulp is directly added into the mixed pulp tank and sent into the pulp mixing system for papermaking, thereby avoiding resource waste.
Description
Technical Field
The invention relates to the technical field of papermaking, in particular to a method for treating papermaking broke.
Background
When high-grade packing paper is produced, broken paper produced by back-making or paper breaking still has small paper sheets after being processed by a broken paper pulper due to high paper sheet strength, and cannot be directly added into a papermaking production system for consumption and use.
The broke produced at present is temporarily stored in a broke tower, and is sent to a discharging tower at intervals, and is mixed with the pulp processed by a broke pulper, and the broke pulp produced by papermaking is processed once again through each pulping process, so that on one hand, fiber is damaged and wasted, and on the other hand, pulping energy consumption is invisibly increased.
Disclosure of Invention
The invention aims to provide a method for treating broke in papermaking, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a method of treating broke in papermaking, comprising the steps of:
the method comprises the following steps: crushing broke by a broke pulper to obtain a broke pulp, and feeding the broke pulp into a broke tower for temporary storage;
step two: defibering the broken paper pulp materials led out by the broken paper tower through a defibering mechanism;
step three: screening and filtering the defibered damaged paper pulp through a screening mechanism;
step four: and returning the good broke pulp obtained by screening to a mixed pulp tank for pulp blending, and then participating in a papermaking process.
As a further scheme of the invention: the defibering mechanism comprises a defibering box, a stirring unit and a defibering unit are arranged in the defibering box and are distributed up and down, the stirring unit comprises a stirring feeding box, the top of the stirring feeding box is fixedly connected with a feeding pipe, one side of the defibering box is fixedly provided with a material pushing cylinder, the output end of the material pushing cylinder is fixedly connected with a mounting plate, one side of the mounting plate is fixedly connected with a stirring motor, the output end of the stirring motor is fixedly connected with a stirring rod, one end of the stirring rod is rotatably connected with a sealing plate, the edge of the sealing plate is slidably connected with the inner wall of the stirring feeding box, and the middle part of the sealing plate is fixedly connected with a pulp permeating net;
the other end of the stirring rod is fixedly connected with a material pushing plate, the edges of the material pushing plate are all obliquely arranged, one end of the inner wall of the stirring feeding box is fixedly connected with a butt-joint base plate which is arranged corresponding to the material pushing plate, and the middle part of the stirring rod is fixedly connected with a plurality of stirring cutter discs which are distributed at equal intervals; the stirring unit is used for stirring and crushing the damaged pulp by driving a plurality of stirring cutter heads which are distributed at equal intervals to rotate, so that the primary defibering of the damaged pulp is realized;
the fluffing unit comprises a fluffing barrel, the top of the fluffing barrel is fixedly connected with one side of the bottom of the stirring feeding box through a guide pipe, a fluffing motor is fixedly mounted at the bottom of the fluffing barrel, the output end of the fluffing motor is connected with a transmission rod, the middle part of the transmission rod is fixedly connected with a plurality of fluffing turntables, the inner wall of the fluffing barrel is fixedly connected with a plurality of bearing rings, the fluffing turntables and the bearing rings are alternately arranged, and a plurality of fluffing protruding blocks are fixedly connected with the tops of the fluffing turntables; gap parts are reserved among the plurality of bearing rings, the inner wall and the transmission rod and among the plurality of defibering rotary discs and the plurality of bearing rings and are used for allowing the damaged pulp to flow, and the diameter of each defibering rotary disc is smaller than the inner diameter of the defibering barrel; the defibering motor drives the defibering rotary table and the bearing rotary table to rotate relatively to realize defibering of the damaged pulp materials, the bottom of the defibering barrel is rotatably connected with a filtering net cover, the filtering net cover is arranged in an inverted circular truncated cone shape, and the center of the bottom of the filtering net cover is fixedly connected with the transmission rod; the filter screen cover is driven to rotate by the fluffing motor, and the pulp breakage materials pass through the filter screen cover by utilizing centrifugal force, so that the pulp breakage materials are filtered.
As a further scheme of the invention: the stirring mechanism comprises a stirring box, a feeding unit and a pushing and pressing unit which are vertically arranged are arranged in the stirring box, the feeding unit comprises a sieving pipe, one end of the sieving pipe is fixedly connected with one side of the bottom of the fluffing barrel, the other end of the sieving pipe is fixedly connected with a plurality of flow guide blocks, the middle parts of the flow guide blocks are provided with obliquely arranged flow guide cavities, discharge ports are formed in the positions, corresponding to the flow guide cavities, of the sieving pipe, one side of the bottoms of the flow guide blocks is fixedly connected with a plurality of slag pushing pieces, and the slag pushing pieces are obliquely arranged and made of elastic materials;
a screening cylinder is fixed on one side of the stirring box, a screening push rod is fixedly connected to the output end of the screening cylinder, a receiving piece is fixedly connected to one end of the screening push rod, the receiving piece comprises a screening frame, and a side baffle is fixedly connected to the edge of the top of the screening frame; the inner wall of the screening frame is fixedly connected with a receiving filter screen, and the top of the receiving filter screen is contacted with the bottom of the slag pushing sheet;
one side of the inner wall of the stirring box is fixedly connected with an obliquely arranged material spreading plate, the top of the material spreading plate is fixedly connected with a plurality of material blocking bulges, the other side of the inner wall of the stirring box is connected with a material receiving barrel, and the top of the material receiving barrel is arranged corresponding to the bottom of the material spreading plate;
the pushing unit comprises a pushing pipe, a pushing cylinder is fixedly mounted at the top of the inner wall of the pushing pipe, a pressing plate is fixedly connected to the output end of the pushing cylinder, and the diameter of the pressing plate is consistent with the inner diameter of the pushing pipe; one side of the pushing pipe is fixedly connected with one side of the material receiving barrel through a material receiving pipe, a one-way valve is fixedly mounted on the inner wall of the material receiving pipe, the flowing direction of the one-way valve is from the material receiving barrel to the pushing pipe, the bottom of the pushing pipe is in threaded connection with a butt pipe, a plurality of screening filter screens distributed at equal intervals are fixedly connected to the inner wall of the butt pipe, and a material discharging pipe is fixedly connected to the bottom of the butt pipe; through bulldozing cylinder and pressure flitch, exert pressure to the broke pulp material to the filtration of the broke pulp material is realized to the propelling movement broke pulp material through a plurality of screening filter screen.
Compared with the prior art, the invention has the beneficial effects that: the invention obtains good pulp by arranging the defibering mechanism and the screening mechanism to defiber and screen the damaged pulp materials generated in the papermaking production process, then adds the good pulp into the mixed pulp tank, and sends the good pulp into the pulp mixing system for papermaking, thereby avoiding resource waste; according to the stirring mechanism, the stirring cutter discs distributed at equal intervals are driven to rotate, so that the broken paper pulp is stirred and crushed, preliminary defibering of the broken paper pulp is realized, meanwhile, the material pushing cylinder drives the stirring cutter discs to move back and forth, so that the stirring uniformity of the broken paper pulp in the stirring feeding box is improved, the defibering motor drives the defibering rotary disc and the bearing rotary disc to rotate relatively when defibering is performed, defibering of the broken paper pulp is realized, the filter screen cover is driven to rotate by the defibering motor, the broken paper pulp passes through the filter screen cover by utilizing centrifugal force, so that the broken paper pulp is filtered, and the whole defibering and filtering effect is more sufficient and uniform;
the screening mechanism is provided with the plurality of flow guide blocks, the flow guide cavities are formed in the flow guide blocks, and the screening cylinder drives the receiving filter screen to reciprocate, so that the distribution of the pulp loss materials on the receiving filter screen is more uniform, the effective utilization of all positions of the receiving filter screen is ensured; through setting up a plurality of screening filter screen to the utilization bulldozes the cylinder and presses the flitch, exerts pressure to the damaged paper pulp material, makes the damaged paper pulp material pass a plurality of screening filter screen, makes the damaged paper pulp material obtain more abundant effectual filtration, promotes good thick liquid quality, makes it to participate in and copies the paper process.
Drawings
FIG. 1 is a block flow diagram of the method of the present invention;
FIG. 2 is a cross-sectional view of the stirring mechanism of the present invention;
FIG. 3 is a cross-sectional view of the sifting mechanism of the present invention;
fig. 4 is a cross-sectional view of a deflector block of the present invention;
fig. 5 is a perspective view of the agitation mechanism and the sifting mechanism of the present invention.
In the figure: 1. a fluffing box; 2. stirring a feeding box; 3. a feed pipe; 4. a material pushing cylinder; 5. a stirring motor; 6. a stirring rod; 7. a sealing plate; 8. a material pushing plate; 9. butt-jointing the base plates; 10. a stirring cutter head; 11. a pulp permeable web; 12. a fluffing barrel; 13. a material guide pipe; 14. a fluffing motor; 15. a transmission rod; 16. a fluffing rotary disc; 17. a bearing ring; 18. a filtering net cover; 19. a stirring box; 20. screening the tubes; 21. a flow guide block; 22. a flow guide cavity; 23. pushing a slag sheet; 24. a screening rack; 25. a screening cylinder; 28. receiving the filter screen; 29. a flow spreading plate; 30. a receiving barrel; 31. pushing the pipe; 32. a material pressing plate; 33. a material receiving pipe; 34. butt-joint pipes; 35. screening a filter screen; 36. and (4) discharging the pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, in an embodiment of the present invention, a method for treating broke in papermaking includes the following steps:
the method comprises the following steps: crushing broke by a broke pulper to obtain a broke pulp, and feeding the broke pulp into a broke tower for temporary storage;
step two: defibering the broken paper pulp materials led out by the broken paper tower through a defibering mechanism;
step three: screening and filtering the defibered damaged paper pulp through a screening mechanism;
step four: and returning the good broke pulp obtained by screening to a mixed pulp tank for pulp blending, and then participating in a papermaking process.
Referring to fig. 2, the fluffing mechanism includes a fluffing box 1, a stirring unit and a fluffing unit are disposed in the fluffing box 1, the stirring unit includes a stirring feeding box 2, a feeding pipe 3 is fixedly connected to the top of the stirring feeding box 2, a material pushing cylinder 4 is fixedly mounted on one side of the fluffing box 1, an output end of the material pushing cylinder 4 is fixedly connected to a mounting plate, a stirring motor 5 is fixedly connected to one side of the mounting plate, an output end of the stirring motor 5 is fixedly connected to a stirring rod 6, one end of the stirring rod 6 is rotatably connected to a sealing plate 7, an edge of the sealing plate 7 is slidably connected to an inner wall of the stirring feeding box 2, and a slurry permeable net 11 is fixedly connected to the middle of the sealing plate 7;
the other end of the stirring rod 6 is fixedly connected with a material pushing plate 8, the edges of the material pushing plate 8 are all obliquely arranged, one end of the inner wall of the stirring feeding box 2 is fixedly connected with a butt-joint base plate 9 which is arranged corresponding to the material pushing plate 8, and the middle part of the stirring rod 6 is fixedly connected with a plurality of stirring cutter heads 10 which are distributed at equal intervals; the stirring unit is used for stirring and crushing the broke pulp by driving a plurality of stirring cutter discs 10 which are distributed at equal intervals to rotate, so that preliminary defibering of the broke pulp is realized, meanwhile, a material pushing cylinder 4 is used for driving a plurality of stirring cutter discs 10 to move back and forth, so that the stirring uniformity of the broke pulp in the stirring feeding box 2 is improved, and meanwhile, the broke pulp can penetrate through the pulp penetration net 11 after being stirred and crushed and is discharged to the defibering barrel 12 through a material guide pipe 13;
the defibering unit comprises a defibering barrel 12, the top of the defibering barrel 12 is fixedly connected with one side of the bottom of the stirring feeding box 2 through a material guide pipe 13, a defibering motor 14 is fixedly installed at the bottom of the defibering barrel 12, the output end of the defibering motor 14 is connected with a transmission rod 15, the middle of the transmission rod 15 is fixedly connected with a plurality of defibering turntables 16, the inner wall of the defibering barrel 12 is fixedly connected with a plurality of bearing rings 17, the plurality of defibering turntables 16 and the plurality of bearing rings 17 are alternately arranged, and a plurality of defibering protruding blocks are fixedly connected to the tops of the plurality of defibering turntables 16; gaps are reserved between the plurality of supporting rings 17 and the inner wall and the transmission rod 15 and between the plurality of defibering rotary discs 16 and the plurality of supporting rings 17 and used for allowing the damaged pulp to flow, and the diameter of the defibering rotary disc 16 is smaller than the inner diameter of the defibering barrel 12; the defibering motor 14 drives the defibering rotary disc 16 and the bearing rotary disc to rotate relatively to realize defibering of the damaged pulp materials, the bottom of the defibering barrel 12 is rotatably connected with a filter screen 18, the filter screen 18 is arranged in an inverted circular truncated cone shape, and the center of the bottom of the filter screen 18 is fixedly connected with the transmission rod 15; the defibering motor 14 drives the filter screen 18 to rotate, and the pulp breakage materials pass through the filter screen 18 by using centrifugal force, so that the pulp breakage materials are filtered.
Referring to fig. 3 and 4, the stirring mechanism includes a stirring tank 19, a feeding unit and a pushing unit are arranged in the stirring tank 19, the feeding unit includes a sieving pipe 20, one end of the sieving pipe 20 is fixedly connected to one side of the bottom of the fluffing barrel 12, the other end of the sieving pipe 20 is fixedly connected to a plurality of flow guide blocks 21, a flow guide cavity 22 is formed in the middle of each flow guide block 21, the flow guide cavity 22 is arranged in an inclined manner, so that the contact area between the port of the flow guide cavity 22 and the receiving filter screen 28 is increased, uniform distribution of the pulp-reducing material on the receiving filter screen 28 is facilitated, and discharge ports are formed in positions of the sieving pipe 20 corresponding to the flow guide cavities 22;
a screening cylinder 25 is fixed on one side of the stirring box 19, a screening push rod is fixedly connected to the output end of the screening cylinder 25, a receiving piece is fixedly connected to one end of the screening push rod and comprises a screening frame 24, a receiving filter screen 28 is fixedly connected to the inner wall of the screening frame 24, and the receiving filter screen 28 is driven to reciprocate by the screening cylinder 25, so that the distribution of pulp loss on the receiving filter screen 28 is more uniform, and the effective utilization of each position of the receiving filter screen 28 is ensured;
one side of the bottom of each of the guide blocks 21 is fixedly connected with a plurality of slag pushing pieces 23, and each of the slag pushing pieces 23 is obliquely arranged and made of an elastic material; the top of the receiving filter screen 28 is contacted with the bottom of the slag pushing sheet 23; by arranging the residue pushing sheet 23, in the process of reciprocating motion of the receiving filter screen 28, impurities deposited on the receiving filter screen 28 are pushed to the edge part by the residue pushing sheet 23, so that the subsequent filtering of pulp-damaged materials is prevented from being blocked, and the screening efficiency of the receiving filter screen 28 is ensured; in order to block the pushed-away impurities and prevent the pushed-away impurities from falling into the flow distributing plate 29, a side baffle is fixedly connected to the edge of the top of the screening frame 24;
one side of the inner wall of the stirring box 19 is fixedly connected with an obliquely arranged flow distributing plate 29, the top of the flow distributing plate 29 is fixedly connected with a plurality of material blocking protrusions, the flow rate of the low-loss paper pulp is reduced by using the flow distributing plate 29, impurities are further blocked by the material blocking protrusions, the other side of the inner wall of the stirring box 19 is connected with a material receiving barrel 30, and the top of the material receiving barrel 30 is arranged corresponding to the bottom of the flow distributing plate 29;
the pushing and pressing unit comprises a pushing and pressing pipe 31, a pushing and pressing cylinder is fixedly mounted at the top of the inner wall of the pushing and pressing pipe 31, a pressure plate 32 is fixedly connected to the output end of the pushing and pressing cylinder, and the diameter of the pressure plate 32 is consistent with the inner diameter of the pushing and pressing pipe 31; one side of the pushing pipe 31 is fixedly connected with one side of the material receiving barrel 30 through a material receiving pipe 33, a one-way valve is fixedly installed on the inner wall of the material receiving pipe 33, the flowing direction of the one-way valve is from the material receiving barrel 30 to the pushing pipe 31, the bottom of the pushing pipe 31 is in threaded connection with a butt pipe 34, the inner wall of the butt pipe 34 is fixedly connected with a plurality of screening filter screens 35 which are distributed at equal intervals, and the bottom of the butt pipe 34 is fixedly connected with a material discharging pipe 36; by pushing and pressing the cylinder and the pressure plate 32, pressure is applied to the broke pulp and the broke pulp is pushed to pass through the screening filter screens 35, so that the broke pulp is filtered.
The working principle of the invention is as follows: the method comprises the following steps that the broke pulp in a broke tower is guided into a stirring and feeding box 2 through a feeding pipe 3, then a stirring motor 5 is started to drive a plurality of stirring cutter discs 10 to rotate, the broke pulp is stirred and crushed, meanwhile, a material pushing cylinder 4 drives a plurality of stirring cutter discs 10 and a material pushing plate 8 to move, the broke pulp passes through a gap between the stirring cutter discs 10 and the material pushing plate 8 and moves to a pulp permeating net 11, and the broke pulp filtered by the pulp permeating net 11 enters a fluffing barrel 12 through a material guiding pipe 13;
the fluffing motor 14 is started to drive the transmission rod 15 and the fluffing turntables 16 to rotate, the broken paper pulp entering the fluffing barrel 12 moves to a gap part between the fluffing turntables 16 and the bearing ring 17, and due to the relative rotation between the fluffing turntables 16 and the bearing ring 17, under the drawing action of fluffing protruding blocks, the paper fibers in the broken paper pulp are further fluffed, meanwhile, the rotation of the transmission rod 15 drives the filter screen cover 18 to rotate, when the broken paper pulp moves to the position of the filter screen cover 18, the broken paper pulp passes through the meshes under the action of the rotation centrifugal force of the filter screen cover 18 and enters the sieving pipe 20, and then is guided into the sieving pipe 20 by the sieving pipe 20;
the pulp-damaged material entering the screening pipe 20 flows into each material guiding cavity from each material outlet, then flows into the receiving filter screen 28 from each material guiding cavity, and simultaneously the screening cylinder 25 is started to drive the screening frame 24 and the receiving filter rate screen to reciprocate, so that the pulp-damaged material is uniformly distributed on the receiving filter screen 28, and meanwhile, the impurities deposited on the receiving filter screen 28 are pushed to the edge part by the material pushing sheet, so that the subsequent filtering of the pulp-damaged material is prevented from being blocked;
the filtered broken paper pulp is guided by the flow spreading of the flow spreading plate 29 and collected into the material receiving barrel 30, then the pushing cylinder is started to drive the material pressing plate 32 to ascend, the broken paper pulp is extracted from the material receiving barrel 30 through the material receiving pipe 33 and enters the pushing pipe 31, then the material pushing cylinder 4 is pushed down again, the broken paper pulp is pressurized to pass through a plurality of screening filter screens 35 to obtain good pulp, then the good pulp is sent out through the material discharging pipe 36 and enters the mixed pulp tank, and then the broken paper pulp enters the pulp distribution system again to participate in the paper making process.
Although the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalents and alternatives falling within the spirit and scope of the invention.
Claims (8)
1. A method for treating broke in papermaking, comprising the steps of:
the method comprises the following steps: crushing broke by a broke pulper to obtain a broke pulp, and feeding the broke pulp into a broke tower for temporary storage;
step two: defibering the broken paper pulp materials led out by the broken paper tower through a defibering mechanism;
step three: screening and filtering the defibered damaged paper pulp through a screening mechanism;
step four: and returning the good broke pulp obtained by screening to a mixed pulp tank for pulp blending, and then participating in a papermaking process.
2. The method as claimed in claim 1, characterized in that in step two, the fluffing mechanism comprises a stirring unit and a fluffing unit, the broke stock is fed and stirred by the stirring unit and pushed into the fluffing unit, and the broke stock is fluffed again by the fluffing unit.
3. The method for treating papermaking broke according to claim 2, characterized in that the stirring unit is used for stirring and crushing the broke stock by driving a plurality of stirring cutter heads (10) which are distributed at equal intervals to rotate, so as to realize the primary defibering of the broke stock.
4. A method in connection with broke handling in papermaking according to claim 2, characterised in that the mixer unit is connected to the fluffing unit via a guide duct (13) and that the guide duct (13) is intermittently opened and closed by driving the reciprocating movement of the closing plate (7) for guiding the broke stock.
5. A method in connection with papermaking broke handling according to claim 2, characterized in that the defibering unit defibers the broke stock by arranging a number of alternately arranged defibering turntables (16) and support rings (17) in the path of movement of the broke stock and by driving the defibering turntables (16) and the support rings (17) to rotate relatively.
6. The method as claimed in claim 5, characterized in that the fluffing unit is arranged to filter the broke stock by driving the filter screen (18) to rotate and by using centrifugal force to force the broke stock through the filter screen (18).
7. The method as claimed in claim 1, characterized in that in step three, the screening mechanism performs dispersion and diversion on the broke stock through the feeding unit and performs receiving and filtration on the broke stock by driving the receiving member to reciprocate.
8. A method as claimed in claim 1, characterized in that in step three the screening means apply pressure to the broke stock by means of the press unit and push the broke stock through a number of screening screens (35) to effect filtration of the broke stock to obtain accepts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111654438.8A CN114411439B (en) | 2021-12-30 | 2021-12-30 | Method for treating broken paper in papermaking |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111654438.8A CN114411439B (en) | 2021-12-30 | 2021-12-30 | Method for treating broken paper in papermaking |
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| CN114411439A true CN114411439A (en) | 2022-04-29 |
| CN114411439B CN114411439B (en) | 2022-12-27 |
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| CN105672015A (en) * | 2016-01-27 | 2016-06-15 | 新乡新亚纸业集团股份有限公司 | Broke disposal and recovery technology and system |
| CN106436408A (en) * | 2016-11-30 | 2017-02-22 | 芬欧汇川(中国)有限公司 | Broke disposal system and method for preventing back-section broke groove overflow by using broke disposal system |
| CN206266946U (en) * | 2016-11-30 | 2017-06-20 | 芬欧汇川(中国)有限公司 | Broke treatment system |
| CN109594382A (en) * | 2019-01-26 | 2019-04-09 | 温州盛淼工业设计有限公司 | A kind of papermaking apparatus for discongesting reclaimed waste paper |
| CN215714238U (en) * | 2021-06-29 | 2022-02-01 | 玖龙纸业（太仓）有限公司 | Broken paper processing system of two adhesive tapes |
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Denomination of invention: A Treatment Method for Paper Loss in Papermaking Effective date of registration: 20230629 Granted publication date: 20221227 Pledgee: China Co. truction Bank Corp Ma'anshan branch Pledgor: SHANYING INTERNATIONAL HOLDING Co.,Ltd. Registration number: Y2023980046742 |