CN106436408A - Broke disposal system and method for preventing back-section broke groove overflow by using broke disposal system - Google Patents

Broke disposal system and method for preventing back-section broke groove overflow by using broke disposal system Download PDF

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Publication number
CN106436408A
CN106436408A CN201611085412.5A CN201611085412A CN106436408A CN 106436408 A CN106436408 A CN 106436408A CN 201611085412 A CN201611085412 A CN 201611085412A CN 106436408 A CN106436408 A CN 106436408A
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China
Prior art keywords
back segment
broke
broken groove
groove
liquid level
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CN201611085412.5A
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CN106436408B (en
Inventor
金志强
程江娜
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UPM China Co Ltd
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UPM China Co Ltd
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    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21BFIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00Fibrous raw materials or their mechanical treatment
    • D21B1/04Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30Defibrating by other means
    • D21B1/34Kneading or mixing; Pulpers
    • D21B1/345Pulpers
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21BFIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00Fibrous raw materials or their mechanical treatment
    • D21B1/04Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30Defibrating by other means
    • D21B1/32Defibrating by other means of waste paper
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21DTREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20Methods of refining
    • D21D1/30Disc mills
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/64Paper recycling

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)

Abstract

The invention relates to a broke disposal system and a method for preventing back-section broke groove overflow by using the broke disposal system. The broke disposal system comprises the back-section broke groove (1); a rewinder (3) and a large cutting knife (4), wherein one end of the back-section broke groove is respectively communicated with the rewinder and the large cutting knife so as to simultaneously receive recycled products generated from the rewinder and the large cutting knife; a deflaker (2), wherein the other end of the back-section broke groove is communicated with the deflaker so as to discharge the received recycled products to the deflaker for defibering. The broke disposal system is further provided with a liquid level interlock control unit. The liquid level interlock control unit is used for detecting the liquid level of the back-section broke groove, and controlling the large cutting knife to be operated according to the detected liquid level. While the liquid level in the back-section broke groove is higher than the set upper limit of the volume of the back-section broke groove, the operation of the large cutting knife can be stopped, and the inflow volume of the inlet section of the back-section broke groove does not exceed the outflow volume of the outlet section of the back-section broke groove, so the overflow situation is prevented to be generated.

Description

Broke treatment system and the method for preventing back segment broken groove overflow using the system
Technical field
One aspect of the present invention is related to a kind of broke treatment system, is on the other hand related to a kind of anti-using the broke treatment system The only method of back segment broken groove overflow.
Background technology
The broken for producing in paper-making process is generally divided into dry damage and damage of damp.
Dry damage is referred in paper machine cadre and the broken for producing afterwards, including:The waste paper that cadre produces when paper machine breaks paper; Trimming under cutting out after soft pressure and during rewinding;Produced waste paper when coil paper, rewinding, packaging;And have quality to ask in paper-making process Substandard products of topic etc..Generally, do to damage and damage after pulper through overdrying, then realize copying back through discongesting defibrination process.
Damage of damp refers to the broken for producing in paper machine wet end (e.g., wet end, press section etc.).Generally, damage of damp is directly discharged into Damage of damp pond, after the pulper under damage of damp pond, then realizes copying back through thickening process.
Back segment broken groove is exactly the master for receiving the dry damage and damage of damp for copying back after thickening for copying back after discongesting defibrination Want part.For example, a kind of typical back segment broken groove be used for receiving from rewinding machine and big cut open cutter melt down product, i.e. by rewinding machine Produced melts down deburring etc. and melts down paper roll etc. by what big cut open cutter was cut, then dredges the product that melt down that receives through deflaker Broken tower is entered after solution.
Rewinding machine is a kind of special equipment for stationery, mica tape, thin film etc., and its purposes is to produce paper machine Paper roll out carries out rewinding successively, but becomes finished paper and dispatch from the factory.The paper roll that is rolled up due to reel machine is than relatively soft, internal Might have breakage or broken end and both sides of the edge are irregular, therefore web width can not be used directly for paper conversion or printing mostly In machine.For this purpose, paper roll is needed through winder trim, cutting, joint, in paper roll core, rewinding forms certain specification, certain Can just dispatch from the factory after the finished roll that tightness is required.
Rewinding process mainly completes three tasks:Cut off body paper burr;By view picture body paper cut into some meet user rule The fabric width of lattice;And the coil diameter of control finished roll, it is allowed to meet specification of dispatching from the factory.As a rule, enter when rewinding machine runs well The flow for entering back segment broken groove is no greater than 120 liters/second.
Big cut open cutter can be used to cut paper roll, and the waste material under cutting is broken into scattered slurry and is melted down.As a rule, big cut open cutter is being just The flow for entering back segment broken groove when often operating is 100 liters/second.
Deflaker be paper industry pulping system in by broken, waste paper, pulpboard etc. through pulper process after produce Slurry discongest equipment.Deflaker makes slurry repeatedly many between Moving plate and quiet disk using the power of high-speed rotation generation Secondary shock and make fiber disperse discongest.Due to leaving appropriate gap between Moving plate and quiet disk, simple dispersion only made by fiber, and Infringement is produced in itself will not to fiber.Deflaker can make physical properties of paper by extensive DIYU with waste paper flow Significantly improve.Deflaker processes the ability of slurry and is usually 75 liters/second.
Fig. 1 is the connection diagram of each part in traditional broke treatment system.Fig. 1 is referred to, illustrated therein is back segment Annexation between broken groove 1 and rewinding machine 3, big cut open cutter 4 and deflaker 2.Can see, the one of back segment broken groove 1 End is connected with rewinding machine 3 and big cut open cutter 4 respectively, to melt down product while receiving from rewinding machine 3 and big cut open cutter 4, including by What rewinding machine 3 was produced melts down deburring etc. and melts down paper roll etc. by what big cut open cutter 4 was cut.The other end of back segment broken groove 1 and high frequency Fluffer 2 is connected, so that the product that melt down that receives are entered deflaker 2 and discongested as slurry.Deflaker 2 also with broken tower 5 are connected, and the slurry after discongesting is entered broken tower 5 and is stored.
However, as it was earlier mentioned, as the flow for entering back segment broken groove 1 when rewinding machine 3 runs well is not higher than 120 Liter/the second, the flow for entering back segment broken groove 1 when big cut open cutter 4 runs well is 100 liters/second, and deflaker 2 processes slurry Ability be generally only 75 liters/second, therefore the influx of 1 entrance of back segment broken groove is much larger than 1 outlet section of back segment broken groove Discharge, so as to cause the generation of flooded conditions.
For this purpose, needing at present to design a kind of improved broke treatment system, the broke treatment system may insure that back segment is damaged The influx of paper groove entrance is less than the discharge of back segment broken groove outlet section, so as to prevent back segment broken groove from overflow feelings occurring Condition.
Content of the invention
It is an object of the invention to provide a kind of broke treatment system, the broke treatment system guarantees back segment broken groove entrance The influx of section is less than the discharge of back segment broken groove outlet section, so as to prevent back segment broken groove from flooded conditions occurring.
A further object of the present invention is to provide a kind of prevents back segment broken groove overflow using above-mentioned broke treatment system Method.
A first aspect of the present invention is related to a kind of broke treatment system, including:Back segment broken groove;Rewinding machine and big cut open cutter, One end of back segment broken groove is connected with rewinding machine and big cut open cutter respectively, with while what receiving was produced from rewinding machine and big cut open cutter Melt down product;Deflaker, the other end of back segment broken groove is connected with deflaker, and the product that melt down that receives are entered height Frequency fluffer is discongested, and wherein, broke treatment system is further equipped with level chain control unit, level chain control unit pair The liquid level of back segment broken groove is detected, and the operation according to the big cut open cutter of detected Liquid level.
According to the second aspect of the invention, the broke treatment system described in a first aspect of the present invention is characterised by, high Frequency fluffer can be connected with broken tower, the slurry after discongesting is entered broken tower and is stored.
According to the third aspect of the invention we, the spy of a first aspect of the present invention or the broke treatment system described in second aspect Levy and be, level chain control unit can include:For the liquid level detection device that back segment broken groove is equipped with, liquid level detection device use Liquid level in detection back segment broken groove;And the operation control device for the outfit of big cut open cutter, operation control device is according to liquid level The level value that testing equipment is detected controls the operation of big cut open cutter.
According to the fourth aspect of the invention, the spy of a first aspect of the present invention or the broke treatment system described in second aspect Levy and be, level chain control unit can limit the dilution water yield of rewinding machine further, so as to control rewinding machine to run well When enter back segment broken groove flow.
According to the fifth aspect of the invention, the broke treatment system described in a fourth aspect of the present invention is characterised by, liquid Position interlocked control unit may further include the flow restriction device being equipped with for rewinding machine, and flow restriction device is according to rewinding machine In melt down the concentration of product and limit the flow of dilution water in rewinding machine less than prescribed limits.
A sixth aspect of the present invention is related to a kind of broke treatment system using as described in a first aspect of the present invention to be prevented The method of back segment broken groove overflow, comprises the following steps:
(i) Level Detection step, i.e.,:Using the liquid level in liquid level detection device detection back segment broken groove;And
(ii) rate-determining steps are run, including:
(a) when detect the liquid level in back segment broken groove higher than back segment broken sump volume set upper limit when, using operation Control device makes big cut open cutter out of service;And
(b) when detect the liquid level in back segment broken groove less than back segment broken sump volume regulation lower limit when, using operation The big cut open cutter that control device makes restarts operation.
According to the seventh aspect of the invention, the method described in a sixth aspect of the present invention is characterised by, can be by back segment The set upper limit of broken sump volume is set to 80%, 85%, 90% or the 95% of back segment broken sump volume.
According to the eighth aspect of the invention, the method described in a sixth aspect of the present invention is characterised by, can be by back segment The regulation lower limit of broken sump volume is set to 50%, 55%, 60% or the 65% of back segment broken sump volume.
According to the eighth aspect of the invention, the method described in a sixth aspect of the present invention is characterised by, can also include Following steps:
(iii) flow restriction step, i.e.,:Using flow restriction device, rewinding is limited according to the concentration that product are melted down in rewinding machine In machine, the flow of dilution water is less than prescribed limits.
According to the tenth aspect of the invention, the method described in a ninth aspect of the present invention is characterised by, it is stipulated that limit value can Think 70 liters/second.
The broke treatment system of the present invention and the method for back segment broken groove overflow is prevented to have using the broke treatment system Following technique effect:
(1) said system and method can the liquid level in back segment broken groove higher than back segment broken sump volume set upper limit When stop the operation of big cut open cutter, so as to enter the flow-reduction of back segment broken groove when big cut open cutter runs well to zero.So, back segment The influx of broken groove entrance is less than the discharge of back segment broken groove outlet section, so as to prevent the generation of flooded conditions.
(2) said system and method can also control the flow of dilution water in rewinding machine, when reducing rewinding machine normal operation Enter the flow of back segment broken groove, it is ensured that the influx of back segment broken groove entrance is less than the outflow of back segment broken groove outlet section Amount, so as to prevent the generation of flooded conditions further.
Description of the drawings
In order to further illustrate the broke treatment system of the present invention and prevent back segment broken using the broke treatment system The technique effect of the method for groove overflow, below in conjunction with the drawings and specific embodiments, the present invention is described in detail, wherein:
Fig. 1 is the connection diagram of each part in traditional broke treatment system;And
Fig. 2 be the present invention broke treatment system in each part connection diagram.
Specific embodiment
Back segment is prevented below with reference to the broke treatment system for illustrating the present invention and using the broke treatment system The preferred embodiment of the method for broken groove overflow, wherein, identical reference identifies identical part in the accompanying drawings.
Fig. 2 be the present invention broke treatment system in each part connection diagram.Refer to Fig. 2, it can be seen that back segment Annexation between broken groove 1 and rewinding machine 3, big cut open cutter 4 and deflaker 2 and the basic phase of traditional broke treatment system With.Specifically, one end of back segment broken groove 1 is equally connected with rewinding machine 3 and big cut open cutter 4 respectively, with and meanwhile receive from Rewinding machine 3 and big cut open cutter 4 melt down product, melt down deburring etc. and melt down paper by what big cut open cutter 4 was cut including produced by rewinding machine 3 Volume etc..The other end of back segment broken groove 1 is equally connected with deflaker 2, and the product that melt down that receives are entered high frequency and discongest Machine 2 is discongested as slurry.Similarly, deflaker 2 is also connected with broken tower 5, and the slurry after discongesting is entered broken tower 5 Stored.
From unlike traditional broke treatment system, the broke treatment system of the present invention is also additionally arranged level chain control Unit.The level chain control unit can be detected to the liquid level of back segment broken groove 1, and according to detected liquid level The operation of the big cut open cutter 4 of value control.Additionally, the level chain control unit can also limit the dilution water yield of rewinding machine 3, so as to control The flow of back segment broken groove 1 is entered when rewinding machine processed 3 runs well.
Specifically, level chain control unit includes to be equipped with for back segment broken groove 1 and be associated with back segment broken groove 1 Liquid level detection device (for example, liquid level detector 11), the operation control device for being equipped with for big cut open cutter 4 and being associated with big cut open cutter 4 (for example, operation controller 14) and flow restriction device (for example, the flow for being equipped with for rewinding machine 3 and being associated with rewinding machine 3 Limiter 13).In the art, term " association " covers wired connection, wirelessly connects, integrates, side by side or string The various connecting modes such as connection connection, coupling.Certainly, above-mentioned construction is only a preferred embodiment of the present invention.For ability For the those of ordinary skill in domain, other equipment with equivalent technologies effect can also be mutually combined the liquid level for use as the present invention Interlocked control unit, they fall within protection scope of the present invention.
Liquid level detector 11 is used for detecting the liquid level in back segment broken groove 1.When the liquid level in back segment broken groove 1 is higher than back segment 1 volume of broken groove 80% when, the liquid level detector 11 sends a signal to operation controller 14, and makes big cut open cutter 4 stop fortune OK.When the liquid level in back segment broken groove 1 drops to the 50% of 1 volume of back segment broken groove, the liquid level detector 11 sends a signal to Operation controller 14, and make big cut open cutter 4 restart operation.Sequence is walked by above-mentioned control, big cut open cutter 4 can be efficiently controlled The flow of back segment broken groove 1 is entered during normal operation, it is ensured that the influx of 1 entrance of back segment broken groove is not more than back segment broken groove The discharge of 1 outlet section, so as to avoid the generation of flooded conditions.
It is of course also possible to be adjusted to the liquid level standard in back segment broken groove 1 according to practical situation.For example, it is possible to will The big standard out of service of cut open cutter 4 is designed as the liquid level in back segment broken groove 1 higher than 85%, the 90% of 1 volume of back segment broken groove Or 95%.Further, it is also possible to after the liquid level that the standard that big cut open cutter 4 is restarted operation is designed as in back segment broken groove 1 is less than 55%, 60% or the 65% of 1 volume of section broken groove.For the person of ordinary skill of the art it can be readily appreciated that these Modification should all fall within the protection domain limited by the present invention.
Using the concentration for melting down product in concentration monitoring device (for example, online densitometer) automatically monitoring rewinding machine 3, and flow Limiter 13 then limits the flow of dilution water in rewinding machine 3 less than prescribed limits according to the concentration value for melting down product in rewinding machine 3. Concentration detection device can be two elements for separating with flow restrictor 13b, it is also possible to be integrated into a separate unit, this is equal Should fall under the scope of the present invention.
For one of ordinary skill in the art it can be readily appreciated that above-mentioned prescribed limits have to be lower than deflaker 2 Process ability, i.e. 75 liters/second of slurry.Find through overtesting, the prescribed limits are most preferably 70 liters/second.Certainly, this area Those of ordinary skill can also change the prescribed limits according to practical situation, and all of change should all be included in the guarantor of the present invention Within the scope of shield.
Thus, the present invention prevent the method for back segment broken groove overflow from including following step using above-mentioned broke treatment system Suddenly:
(i) Level Detection step, i.e.,:Using liquid level detection device (for example, liquid level detector 11) detection back segment broken groove 1 Interior liquid level;And
(ii) rate-determining steps are run, including:
(a) when detect the liquid level in back segment broken groove 1 higher than 1 volume of back segment broken groove set upper limit when, using fortune Row control device (for example, operation controller 14) makes big cut open cutter 4 out of service;And
(b) when detect the liquid level in back segment broken groove 1 less than 1 volume of back segment broken groove regulation lower limit when, using fortune The big cut open cutter 4 that row control device makes restarts operation.
In a preferred embodiment of the present invention, can be according to practical situation by the set upper limit of 1 volume of back segment broken groove It is set to 80%, 85%, 90% or the 95% of 1 volume of back segment broken groove.That is, work as detecting in back segment broken groove 1 When liquid level is higher than 80%, 85%, 90% or the 95% of 1 volume of back segment broken groove, stop big cut open cutter 4 using operation controller 14 Operation.
Similarly, the regulation lower limit of 1 volume of back segment broken groove can be set to by 1 volume of back segment broken groove according to practical situation 50%, 55%, 60% or 65%.That is, being less than 1 body of back segment broken groove when the liquid level in back segment broken groove 1 is detected Product 50%, 55%, 60% or 65% when, using operation controller 14 make big cut open cutter 4 restart operation.
Additionally, the method for preventing back segment broken groove overflow of the present invention is further comprising the steps of:
(iii) flow restriction step, i.e.,:Using flow restriction device (for example, flow restrictor 13) according in rewinding machine 3 The concentration value for melting down product limits the flow of dilution water in rewinding machine 3 less than prescribed limits.
In another preferred embodiment of the present invention, above-mentioned prescribed limits are 70 liters/second.
By implementing said method, on the one hand can be in the liquid level in back segment broken groove 1 higher than 1 volume of back segment broken groove Stop the operation of big cut open cutter 4 during set upper limit, so as to the flow-reduction of back segment broken groove 1 be entered when big cut open cutter 4 runs well extremely Zero, on the other hand can control the flow of dilution water in rewinding machine 3, back segment broken is entered to reduce when rewinding machine 3 runs well The flow of groove 1, so that discharge of the influx of 1 entrance of back segment broken groove less than 1 outlet section of back segment broken groove, so as to anti- The only generation of flooded conditions.
Although above in association with preferred embodiment to the structure of the broke treatment system of the present invention and using at the broken Reason system prevents the method for back segment broken groove overflow and its technique effect to be illustrated, but ordinary skill in the art Personnel and cannot function as limitation of the present invention it should be appreciated that what above-mentioned example was intended merely to illustrate.For example, it is possible to originally In technical field, other liquid level detection devices known, operation control device and flow restriction device are used herein to replace Liquid level detector 11, operation controller 12 and flow restrictor 13 etc..Therefore, it can the connotation in claims In the range of the present invention is modified and modification, these modification and modification fall within required by claims of the present invention Within the scope of.

Claims (10)

1. a kind of broke treatment system, including:
Back segment broken groove (1);
Rewinding machine (3) and big cut open cutter (4), the one end of back segment broken groove (1) respectively with the rewinding machine (3) and described cut open greatly Knife (4) is connected, to melt down product while receiving from what the rewinding machine (3) and the big cut open cutter (4) were produced;
Deflaker (2), the other end of back segment broken groove (1) is connected with the deflaker (2), will be received The product that melt down enter the deflaker (2) and discongested,
Characterized in that,
The broke treatment system is further equipped with level chain control unit, and the level chain control unit is damaged to the back segment The liquid level of paper groove (1) is detected, and according to detected Liquid level big cut open cutter (4) operation.
2. broke treatment system as claimed in claim 1, it is characterised in that deflaker (2) and broken tower (5) phase Connection, the slurry after discongesting is entered broken tower (5) and is stored.
3. broke treatment system as claimed in claim 1 or 2, it is characterised in that the level chain control unit includes:
For the liquid level detection device (11) that back segment broken groove (1) is equipped with, described liquid level detection device (11) are used for detecting institute State the liquid level in back segment broken groove (1);And
For the operation control device (14) that big cut open cutter (4) are equipped with, operation control device (14) are examined according to the liquid level The level value that measurement equipment (11) is detected controls the operation of big cut open cutter (4).
4. broke treatment system as claimed in claim 1 or 2, it is characterised in that the level chain control unit is further The dilution water yield of the rewinding machine (3) is limited, so as to control the rewinding machine (3) the back segment broken groove to be entered when running well (1) flow.
5. broke treatment system as claimed in claim 4, it is characterised in that the level chain control unit is further included For the flow restriction device (13) that the rewinding machine (3) is equipped with, flow restriction device (13) are according in the rewinding machine (3) The concentration value for melting down product limits the flow of dilution water in rewinding machine (3) less than prescribed limits.
6. the method that one kind prevents back segment broken groove (1) overflow using broke treatment system as claimed in claim 1, bag Include following steps:
(i) Level Detection step, i.e.,:The liquid level in back segment broken groove (1) is detected using liquid level detection device (11);And
(ii) rate-determining steps are run, including:
(a) when detect the liquid level in back segment broken groove (1) higher than back segment broken groove (1) volume set upper limit When, make big cut open cutter (4) out of service using operation control device (14);And
B () is less than the regulation lower limit of back segment broken groove (1) volume when the liquid level in back segment broken groove (1) is detected When, make big cut open cutter (4) to restart operation using the operation control device (14).
7. method as claimed in claim 6, it is characterised in that the set upper limit of back segment broken groove (1) volume is arranged For back segment broken groove (1) volume 80%, 85%, 90% or 95%.
8. method as claimed in claim 6, it is characterised in that the regulation lower limit of back segment broken groove (1) volume is arranged For back segment broken groove (1) volume 50%, 55%, 60% or 65%.
9. method as claimed in claim 6, it is characterised in that further comprising the steps of:
(iii) flow restriction step, i.e.,:Using flow restriction device (13) according to the concentration for melting down product in the rewinding machine (3) Value limits the flow of dilution water in rewinding machine (3) and is less than prescribed limits.
10. method as claimed in claim 9, it is characterised in that the prescribed limits be.
CN201611085412.5A 2016-11-30 2016-11-30 Broke treatment system and the method for preventing back segment broken slot overflow using the system Active CN106436408B (en)

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CN114411439A (en) * 2021-12-30 2022-04-29 山鹰国际控股股份公司 Method for treating broken paper in papermaking
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