CN102747632B - Slurry dispersing system and slurry dispersing process - Google Patents
Slurry dispersing system and slurry dispersing process Download PDFInfo
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- CN102747632B CN102747632B CN201210257298.5A CN201210257298A CN102747632B CN 102747632 B CN102747632 B CN 102747632B CN 201210257298 A CN201210257298 A CN 201210257298A CN 102747632 B CN102747632 B CN 102747632B
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Abstract
The invention discloses a slurry dispersing process comprising the steps of using a wrapping machine to wrap a raw material on the humid condition, wherein the raw material comprises broken paper; inputting the wrapped wet material with needed number to a buffer area, and staying for a certain time; pushing the wet material to a storage area and a transport area by the buffer area and then enabling the wet material to a slurry dispersing machine; after adding quantitative water, finishing a primary feeding, and then dispersing slurry; after dispersing slurry in the slurry dispersing machine, forming a slurry material and then taking out the slurry material. The invention also provides a slurry dispersing system for performing the slurry dispersing process. According to the slurry dispersing process disclosed by the invention, the material broken papers is wrapped on the humid condition and the broken papers can enter the slurry dispersing machine after buffering and retaining for a certain time, so that the process can hydrate, soften and swell the raw material and perform hydrogen-bond primary splitting, further, fiber damage caused by pure mechanical function can reduced during the slurry dispersing, reduce slurry dispersing energy loss is reduced and the control accuracy of the slurry concentration is improved.
Description
Technical field
The present invention relates to field of papermaking, particularly a kind of loose slurry system and the one of carrying out loose slurry in this loose slurry system are fallen apart sizing process.
Background technology
Loose slurry (also known as the pulping) workshop section of paper making process is for known by industry.By loose slurry, the fiber initial gross separation in the paper making raw materials such as solid size, waste paper or broken can be made, for the back segment process of slurry is ready.
Loose slurry is divided into the loose slurry of batch (-type) and continuous loose slurry.The so-called batch (-type) slurry that falls apart refers to that a certain amount of slurry drops into starch dispensing machine and completes after loose slurry is removed, then carries out the loose slurry of slurry of other a batch, and the process of each batch of loose slurry is discrete.
Current batch (-type) slurry process process of faling apart generally comprises following steps:
1) according to size and the ability of starch dispensing machine, throw in the raw material of constant weight, wherein can comprise solid size, waste paper and broken, coordinate a certain amount of water, to reach optium concentration;
2) start starch dispensing machine, use the mode of machinery to fall apart slurry to the object reaching fiber separation completely;
3) if necessary, heat (steam) in said process or add intensity and to dissociate agent, or the agent of dissociating of heating and intensity uses simultaneously;
4), after loose slurry completes, the slurry in dilution starch dispensing machine to finite concentration, then pumps slurry from below;
5) get back to first step, start next circulation.
The defect that above-mentioned loose sizing process exists is:
1) broken is broken up in dry state, and the damage caused fiber is comparatively large, and influence process controls and becomes the character of paper.
2) broken has different forms, has loose paper, also has the paper breaking into bag, is difficult to the amount of each charging of regulation and control.
3) inlet amount accurately cannot estimate that the concentration causing faling apart slurry can be inaccurate.
4) when loose slurry concentration necessary is low time, interaction between fiber and fiber is less, the fiber separation of broken relies on the effect of mechanical energy to reach completely, no matter how advanced the design of starch dispensing machine and rotor thereof is, injury is to a certain degree caused to fiber in capital, and then affects paper strength.
5) inlet amount cannot accurately estimate also to cause to add intensity dissociate agent time cannot accurately estimate, thus cause unnecessary waste or the inadequate situation of addition.
6) broken is stacked and is taken more space.
Summary of the invention
In view of this, be necessary to provide a kind of can eliminate above-mentioned defect loose sizing process and for implementing the loose slurry system that this loose sizing process is arranged.
A kind of loose sizing process, comprises the steps:
Utilize baling press, packed by raw material under temperature and humidity condition, this raw material comprises broken;
Certain hour is detained in wet feed material input block after needing the packing of quantity in advance in buffering area;
Wet feed material is forced through storage and traffic zone by buffering area again, and enters in starch dispensing machine, completes and once feed in raw material after quantitative watering, then carries out loose slurry;
Form slurry complete loose slurry in starch dispensing machine after and take out.
A kind of loose slurry system, comprise baling press, for raw material being packed under temperature and humidity condition, the buffering area be connected with baling press, for the wet feed material after temporary packing, the storage be connected with buffering area and traffic zone, and with store the starch dispensing machine that is connected with traffic zone, described storage and traffic zone are used for wet feed material to be passed in starch dispensing machine, and starch dispensing machine has been used for faling apart and has starched and form slurry.
Compared with prior art, loose sizing process tool provided by the invention has the following advantages:
1) raw material broken thorough aquation under temperature and humidity condition, soft, and expand, hydrogen bond tentatively divides, and can to reduce in existing loose slurry process pure mechanism to the damage of fiber.
2) frictional force between paper and paper reduces because of humidifying, can improve normal loose slurry concentration 2-3%.That is, under the prerequisite reaching identical loose slurry concentration, technique of the present invention, compared with traditional technique, needs less time and energy, and the effect that therefore loose sizing process of the present invention brings is the improvement of productivity, and the reduction of specific energy consumption.
3) fiber in raw material reduces by the infringement of mechanical force, stabilizes production process and improves into the intensity of paper.
4) humidity of the warm and humid packing process of broken is certain, effectively controls each loose slurry amount, thus can stability contorting loose slurry concentration, reduces the waste of energy and chemicals, avoiding the low fiber damage caused of loose slurry concentration.
5) because the present invention's sizing process that falls apart can reduce loose slurry intensity, therefore to the impurity in raw material broken as plastic sheet also has better protective effect, the shape that these impurity can be made to keep relatively large, is beneficial to and is removed in follow-up technique.
6) broken packing buffering has also extenuated the problem that broken stacking takies more space simultaneously.
With reference to the accompanying drawings, the invention will be further described in conjunction with specific embodiments.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the loose slurry system of one embodiment of the invention.
Main element symbol description
| Baling press | 10 |
| Buffering area | 20 |
| Entrance | 21、31 |
| Outlet | 23、33 |
| Store and traffic zone | 30 |
| Starch dispensing machine | 40 |
| Loose stock tank | 41 |
| Grout outlet | 42 |
| Go out stock pump | 43 |
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Please refer to Fig. 1, the loose slurry system that one embodiment of the invention provides comprises baling press 10, the buffering area 20 be connected with baling press 10, the storage be connected with buffering area 20 and traffic zone 30, and the starch dispensing machine 40 be connected with storage and traffic zone 30.
Baling press 10 such as, for pack under damp-warm syndrome condition scattered raw material, broken and waste paper etc.Treatment fluid can be added to reach set damp-warm syndrome condition in baling press 10.Damp-warm syndrome condition refers to have certain temperature and humidity.
The entrance 21 of buffering area 20 is directly connected with the outlet of baling press 10, therefore the raw material in baling press 10 can be directly inputted into buffering area 20 and keep in certain hour in buffering area 20, makes the abundant aquation of raw material, soft, expand, reach the object that the hydrogen bond in raw material is tentatively divided.The reserves of buffering area 20 can set on demand, preferably the starch dispensing machine 40 once loose capacity starched.
The outlet 23 of buffering area 20 is directly connected with the entrance 31 of traffic zone 30 with storage.Raw material in buffering area 20 after temporary can be pushed into storage and traffic zone 30, and enters into starch dispensing machine 40 by the outlet 33 of storage and traffic zone 30, completes the reinforced of starch dispensing machine 40.Raw material completes loose slurry after entering starch dispensing machine 40.Storage and traffic zone 30 also can have identical function with buffering area 20, and namely as the space of the temporary transient storage of raw materials, this can improve the production capacity of loose slurry equipment, the waste reducing equipment cost and take up room.
Starch dispensing machine 40 comprises loose stock tank 41, grout outlet 42 and goes out stock pump 43.Wet feed material is broken up formation slurry in loose stock tank 41, and going out stock pump 43 can pump the slurry of formation.
Buffering area 20, storage and traffic zone 30 are airtight space, for keeping temperature and humidity condition.Buffering area 20, storage and traffic zone 30 are preferably all pipe-like.For reducing buffering area 20 to store and traffic zone 30 promotes the promotion resistance of raw material, large than entrance 31 of the opening diameter that storage and traffic zone 30 are preferably outlet 33, in addition buffering area 20 large than entrance 21 of opening diameter that be preferably outlet 23.Namely as shown in Figure 1, outlet 33 diameter of storage and traffic zone 30 is D1, entrance 31 diameter of storage and traffic zone 30 is D2, outlet 23 diameter of buffering area 20 is D3, entrance 21 diameter of buffering area 20 is D4, and each pipe diameter has following relation: D1>D2>D3>D4.
In addition, also a water storage tank 50 can be set at entrance 21 place of the outlet of baling press 10 and buffering area 20.Water storage tank 50 can be used for holding by ooze out in baling press 10 and the treatment fluid of backflow in buffering area 20.These phegmas can go utilization again.
The process of loose sizing process provided by the present invention is:
1) utilize baling press 10, under temperature and humidity condition, raw material is packed.Raw material comprises broken.Certain raw material also also can comprise solid size or waste paper.The mode of adding treatment fluid can be utilized in baling press 10 to form temperature and humidity condition.Treatment fluid can be common water.For economize energy, treatment fluid is preferably waste water in paper-making process as plain boiled water etc.In addition, bactericide and intensity can be added as required to dissociate agent in treatment fluid.This temperature and humidity condition preferable temperature is 50-60 DEG C, and makes the pH value of the wet feed material of formation be 8.0-9.0.
2) by the wet feed material press-in buffering area 20 after packing.The reserves of buffering area 20 can set on demand, preferably the starch dispensing machine 40 once loose capacity starched.Wet feed material after packing is temporary to reach abundant aquation, soft in buffering area 20, expands, and makes the object that the hydrogen bond in raw material tentatively divides.
3) wet feed material is forced through storage and traffic zone 30 by buffering area again, and enters in starch dispensing machine 40, completes and once feed in raw material after quantitative watering, then carries out loose slurry.The total holdup time of preferred wet feed material in buffering area 20 and storage and traffic zone 30 is 8-12 hour, is detained and within 8-12 hour, makes the hydrogen bond in raw material tentatively divide before namely wet feed material enters starch dispensing machine 40.
4), after loose slurry completes, in starch dispensing machine 40, slurry is formed.Can according to real needs by the pulp dilution in starch dispensing machine 40 to finite concentration.Finally slurry is taken out from going out stock pump 43.
5) repeat above-mentioned steps and start next loose slurry circulation.
The treatment fluid refluxed in that ooze out from baling press and buffering area can recycling.
Compared with existing loose sizing process, the low-loss provided by the present invention sizing process tool that falls apart has the following advantages:
1) raw material broken thorough aquation under temperature and humidity condition, soft, and expand, hydrogen bond tentatively divides, and can to reduce in existing loose slurry process pure mechanism to the damage of fiber.
2) frictional force between paper and paper reduces because of humidifying, can improve normal loose slurry concentration 2-3%.That is, under the prerequisite reaching identical loose slurry concentration, technique of the present invention, compared with traditional technique, needs less time and energy, and the effect that therefore loose sizing process of the present invention brings is the improvement of productivity, and the reduction of specific energy consumption.
3) fiber in raw material reduces by the infringement of mechanical force, stabilizes production process and improves into the intensity of paper.
4) humidity of the warm and humid packing process of broken is certain, effectively controls each loose slurry amount, thus can stability contorting loose slurry concentration, reduces the waste of energy and chemicals, avoiding the low fiber damage caused of loose slurry concentration.
5) because the present invention's sizing process that falls apart can reduce loose slurry intensity, therefore to the impurity in raw material broken as plastic sheet also has better protective effect, the shape that these impurity can be made to keep relatively large, is beneficial to and is removed in follow-up technique.
6) broken packing buffering has also extenuated the problem that broken stacking takies more space simultaneously.
Claims (9)
1. a loose sizing process, is characterized in that comprising the steps:
Utilize baling press, packed by raw material under temperature and humidity condition, this raw material comprises broken;
Certain hour is detained in wet feed material input block after needing the packing of quantity in advance in buffering area;
Wet feed material is forced through storage and traffic zone by buffering area again, and enters in starch dispensing machine, completes and once feed in raw material after quantitative watering, and then carry out loose slurry, wherein, described buffering area, described storage and traffic zone are airtight pipeline;
Form slurry complete loose slurry in starch dispensing machine after and take out.
2. loose sizing process as claimed in claim 1, is characterized in that: the temperature of temperature and humidity condition is 50-60 DEG C, and the pH value of the wet feed material formed of packing under this temperature and humidity condition is 8.0-9.0.
3. loose sizing process as claimed in claim 1, is characterized in that: the total holdup time of wet feed material in buffering area and storage and traffic zone is 8-12 hour.
4. loose sizing process as claimed in claim 1, is characterized in that: in baling press, add treatment fluid to form described temperature and humidity condition, treatment fluid is the plain boiled water in paper-making process.
5. sizing process as claimed in claim 4 loose, is characterized in that: add bactericide and intensity in treatment fluid and to dissociate agent.
6. sizing process as claimed in claim 4 loose, is characterized in that: to ooze out from baling press and the treatment fluid that refluxes in buffering area carry out recycling.
7. a loose slurry system, comprise the starch dispensing machine for the formation of slurry, it is characterized in that: also comprise baling press, for being packed by raw material under temperature and humidity condition, the buffering area be connected with baling press and the storage be connected with buffering area and traffic zone, store and be connected with described starch dispensing machine with traffic zone, described buffering area is used for the wet feed material after temporary packing, described storage and traffic zone are used for wet feed material to be passed in starch dispensing machine, and wherein, described buffering area, described storage and traffic zone are airtight pipeline.
8. loose slurry system as claimed in claim 7, is characterized in that storage and outlet diameter D1, the inlet diameter D2 of traffic zone and outlet diameter D3, the inlet diameter D4 of buffering area have following relation: D1>D2>D3>D4.
9. loose slurry system as claimed in claim 8, is characterized in that: the outlet of baling press and the porch of buffering area arrange a water storage tank.
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| CN201210257298.5A CN102747632B (en) | 2012-07-24 | 2012-07-24 | Slurry dispersing system and slurry dispersing process |
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| CN201210257298.5A CN102747632B (en) | 2012-07-24 | 2012-07-24 | Slurry dispersing system and slurry dispersing process |
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| CN103215833B (en) * | 2013-04-11 | 2015-12-23 | 金红叶纸业集团有限公司 | Eliminate method and the papermaking process of broken sicker |
| CN110130134B (en) * | 2018-02-02 | 2022-10-14 | 金红叶纸业集团有限公司 | Papermaking system and papermaking method |
| CN111424449A (en) * | 2020-04-07 | 2020-07-17 | 山东仁丰特种材料股份有限公司 | Paper roll copy-back equipment and copy-back method |
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| NL179665C (en) * | 1977-05-31 | 1986-10-16 | Esmil Bv | DEVICE FOR SEPARATING A PAPER FRACTION AND A FRACTION OF PLASTIC FOIL FROM HOUSEHOLD WASTE. |
| NL8203580A (en) * | 1982-09-15 | 1984-04-02 | Dollard Karton Bv | METHOD AND APPARATUS FOR PREPARING PAPER OR CARDBOARD |
| CN101935956A (en) * | 2009-06-30 | 2011-01-05 | 天津科技大学 | Technology for improving strength and performance of regenerated cardboard paper by recycling OCC (Old Corrugated Containers) waste paper in energy-saving way |
| CN102174761A (en) * | 2011-02-28 | 2011-09-07 | 杭州华旺新材料科技有限公司 | Process for producing printed decorative raw paper by using recycled waste paper |
| CN102373637A (en) * | 2011-09-20 | 2012-03-14 | 天津紫微泰克植物纤维科技有限公司 | Pretreatment process for producing bamboo fibers with bamboos |
| CN102409573A (en) * | 2011-12-14 | 2012-04-11 | 江苏飞翔纸业有限公司 | Recycling method of pulping wastewater |
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