CN109610221A - A kind of method of papermaking pulp, slurry separating and recovering - Google Patents
A kind of method of papermaking pulp, slurry separating and recovering Download PDFInfo
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- CN109610221A CN109610221A CN201811526335.1A CN201811526335A CN109610221A CN 109610221 A CN109610221 A CN 109610221A CN 201811526335 A CN201811526335 A CN 201811526335A CN 109610221 A CN109610221 A CN 109610221A
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
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Abstract
The present invention is a kind of method of papermaking pulp, slurry separating and recovering, belongs to pulp technology for making paper.It is the following steps are included: control the concentration of copy paper plain boiled water；The adjustment and control in sludge source, primary filter is carried out by slurrying concentration inclined wire and filtering nylon wire including sludge, subsequent sludge is flowing into sewage primary sedimentation pond after big inclined wire nylon wire together, expand the wire side area of slurrying concentration inclined wire, wherein wire side area expands original 33%, increases the mesh mesh number of filtering nylon wire, and wherein mesh mesh number increases original 66%, increase the mesh mesh number of big inclined wire nylon wire, wherein mesh mesh number increases original 50%；Reuse after sludge separation.Waste strength is effectively reduced in high mesh multistage strainer；The concentration control system of paper machine white water processing greatly promotes the retention of fiber fines and filler using ternary retention agent, drying strengthening agent by changing forming net type number, while reducing the difficulty of waste water post-processing；Upgrade the industrial water circulatory system of paper-making pulping.
Description
Technical field
The invention belongs to pulp technology for making paper, and in particular to a kind of method of papermaking pulp, slurry separating and recovering.
Background technique
In recent years, due to the recycling of OCC waste paper so that fiber fines in waste paper and filler increase, cause slurrying,
Paper waste concentration is higher, and waste water will generate a large amount of sludge when precipitating by sewage primary sedimentation pond.Practical paper mill sludge is papermaking
Fiber fines and filler in waste water, the processing method of current paper mill sludge include: 1. filters pressing factures, the discharge of sludge workshop
Paper pulp has very high fiber content, into belt filter press before appropriate poly- propionyl enamine is added to reach preferable dehydrating effect,
Subsequent processing is carried out again；2. the sludge of biochemical treatment, system discharge is optionally added into appropriate aluminium polychloride, ferric trichloride etc.,
It is used in conjunction with poly- propionyl enamine.
Recently as the promotion and application of table glue technology, cornstarch, tapioca, synthetic starch etc. are largely used,
The useless OCC filler of state is caused to obviously increase, paper waste concentration obviously rises, although papermaking enterprise is all attempted for sludge to be back to
In papermaking, but since sludge creation amount and mildew, the factors control such as smelly that blacks are more difficult, the serious shadow of reuse is directly resulted in
It rings paper machine speed and finished product paper quality, many enterprises all fails to accomplish a hundred percent reuse, especially activated sludge.
Summary of the invention
Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a kind of papermaking pulp, slurry separating and recoverings
The technical solution of method.
A kind of method of the papermaking pulp, slurry separating and recovering, it is characterised in that the following steps are included:
S1. control the concentration of copy paper plain boiled water: paper machine takes variation forming net type number, changes retention agent during copy paper is at paper,
Wet end uses drying strengthening agent, is properly added aluminum sulfate in slurry；
S2. the adjustment and control in sludge source: sludge carries out primary filter by slurrying concentration inclined wire and filtering nylon wire, then
Sludge is flowing into sewage primary sedimentation pond after big inclined wire nylon wire together, expands the wire side area of slurrying concentration inclined wire, wherein net
Face area expands original 33%, increases the mesh mesh number of filtering nylon wire, and wherein mesh mesh number increases original 66%, increases big
The mesh mesh number of inclined wire nylon wire, wherein mesh mesh number increases original 50%；
S3. the reuse after sludge separation: increasing the reservoir volume in pulp-making waste-water pond, and wherein storage volume increases original 150%,
It is managed collectively the useful water spot of workshop institute, clearly with water number amount and with copy paper white water recycling after water quality, including separation in system
Slurry concentration dilution is starched, as damage of damp, dry damage Chi Yongshui and mashing water etc., is collected simultaneously high pressure water off the net, felt high pressure
Water, for the axle sealing water of vacuum pump cycling use of water, reduction gearbox cooling water and all kinds of pumps, spray eye is straight in reduction high pressure water jet pipe
Diameter, wherein diameter reduces original 20%.
A kind of method of papermaking pulp, slurry separating and recovering, it is characterised in that the forming net model in the step S1
The two-layered, formed net of single layer forming net and different net type number including different net type number, utilizes the single layer forming net of different net type number
And the variation combination of two-layered, formed net carries out copy paper into paper.
The method of a kind of papermaking pulp, slurry separating and recovering, it is characterised in that the retention agent in the step S1 is by double
First retention agent is changed to ternary retention agent, and the ternary retention agent is bentonite, the mass ratio 7:1000 of ternary retention agent and pulp-water.
The method of a kind of papermaking pulp, slurry separating and recovering, it is characterised in that the drying strengthening agent in the step S1 is second
The mass ratio 1.5:1000 of dialdehyde polyacrylamide, drying strengthening agent and pulp-water.
The method of a kind of papermaking pulp, slurry separating and recovering, it is characterised in that the slurrying concentration in the step S2 is oblique
Original wire side area of net is 180 ㎡, is expanded to 240 ㎡.
A kind of method of papermaking pulp, slurry separating and recovering, it is characterised in that the filtering nylon wire in the step S2
Original mesh mesh number be 60 mesh, increase to 100 mesh.
A kind of method of papermaking pulp, slurry separating and recovering, it is characterised in that the big inclined wire nylon in the step S2
Original mesh mesh number of net is 80 mesh, increases to 120 mesh.
A kind of method of papermaking pulp, slurry separating and recovering, it is characterised in that the pulp-making waste-water pond in the step S3
Original reservoir volume be 120m3, increase to 300 m3.
A kind of method of papermaking pulp, slurry separating and recovering, it is characterised in that the high pressure water jet pipe in the step S3
Original diameter of spray eye is 1 ㎜ of Ф, is reduced to 0.8 ㎜ of Ф.
Beneficial effects of the present invention:
1, the high mesh multistage strainer of high enriched water processing is set, by adjusting the wire side area and filtering nylon of slurrying concentration inclined wire
Or else the mesh mesh number of net and big inclined wire nylon wire and then mutually matched whole design influence to have in the case where concentrated effect
Effect reduces waste strength；
2, the concentration control system of paper machine white water processing shapes net type number by changing, using ternary retention agent, drying strengthening agent, greatly
The big retention for promoting fiber fines and filler, while reducing the difficulty of waste water post-processing；
3, the industrial water circulatory system for upgrading paper-making pulping is managed the useful water of institute, is received by white water recycling, high pressure water
Collect circulation, storage of waste water capacity boost etc., not only reduce the yield of subsequent process mud and sewage, and realizes the life of energy saving green
Production mode.
Specific embodiment
The invention will be further described below.
A kind of method of papermaking pulp, slurry separating and recovering comprising following steps:
S1. control the concentration of copy paper plain boiled water: paper machine takes variation forming net type number, specifically, molding during copy paper is at paper
Net type number includes the single layer forming net of different net type number and the two-layered, formed net of different net type number, utilizes the single layer of different net type number
The variation combination of forming net and two-layered, formed net carries out copy paper into paper；Change retention agent, double base retention agent is changed to ternary and is helped
Agent is stayed, ternary retention agent is bentonite, the mass ratio 7:1000 of ternary retention agent and pulp-water；Wet end uses drying strengthening agent, drying strengthening agent
For glyoxal polyacrylamide, the mass ratio 1.5:1000 of drying strengthening agent and pulp-water；Aluminum sulfate is properly added in slurry.
S2. the adjustment and control in sludge source: sludge carries out primary filter by slurrying concentration inclined wire and filtering nylon wire,
Subsequent sludge is flowing into sewage primary sedimentation pond after big inclined wire nylon wire together, expands the wire side area of slurrying concentration inclined wire, system
Original wire side area of slurry concentration inclined wire is 180 ㎡, is expanded to 240 ㎡, and wire side area expands original 33%；Increase filtering Buddhist nun
The mesh mesh number of dragon net, the original mesh mesh number for filtering nylon wire is 60 mesh, increases to 100 mesh, and mesh mesh number increases original
66%；Increasing the mesh mesh number of big inclined wire nylon wire, original mesh mesh number of big inclined wire nylon wire is 80 mesh, increase to 120 mesh,
Mesh mesh number increases original 50%；
S3. the reuse after sludge separation: increasing the reservoir volume in pulp-making waste-water pond, and wherein storage volume increases original 150%,
Specifically, original reservoir volume in pulp-making waste-water pond is 120m3, increases to 300 m3；It is managed collectively the useful water of workshop institute
Point, clearly with water number amount and with water quality, including after separation, copy paper white water recycling is diluted in slurrying slurry concentration, as damage of damp,
Dry damage Chi Yongshui and mashing water etc. are collected simultaneously high pressure water off the net, felt high pressure water, for vacuum pump cycling use of water, subtract
The axle sealing water of fast case cooling water and all kinds of pumps, reduce high pressure water jet pipe in spray eye diameter, high pressure water jet pipe spray eye it is original
Diameter is 1 ㎜ of Ф, is reduced to 0.8 ㎜ of Ф, and diameter reduces original 20%.
Claims (9)
1. a kind of method of papermaking pulp, slurry separating and recovering, it is characterised in that the following steps are included:
S1. control the concentration of copy paper plain boiled water: paper machine takes variation forming net type number, changes retention agent during copy paper is at paper,
Wet end uses drying strengthening agent, is properly added aluminum sulfate in slurry；
S2. the adjustment and control in sludge source: sludge carries out primary filter by slurrying concentration inclined wire and filtering nylon wire, then
Sludge is flowing into sewage primary sedimentation pond after big inclined wire nylon wire together, expands the wire side area of slurrying concentration inclined wire, wherein net
Face area expands original 33%, increases the mesh mesh number of filtering nylon wire, and wherein mesh mesh number increases original 66%, increases big
The mesh mesh number of inclined wire nylon wire, wherein mesh mesh number increases original 50%；
S3. the reuse after sludge separation: increasing the reservoir volume in pulp-making waste-water pond, and wherein storage volume increases original 150%,
It is managed collectively the useful water spot of workshop institute, clearly with water number amount and with copy paper white water recycling after water quality, including separation in system
Slurry concentration dilution is starched, as damage of damp, dry damage Chi Yongshui and mashing water etc., is collected simultaneously high pressure water off the net, felt high pressure
Water, for the axle sealing water of vacuum pump cycling use of water, reduction gearbox cooling water and all kinds of pumps, spray eye is straight in reduction high pressure water jet pipe
Diameter, wherein diameter reduces original 20%.
2. a kind of method of papermaking pulp, slurry separating and recovering according to claim 1, it is characterised in that in the step S1
Forming net model include the single layer forming net of different net type number and the two-layered, formed net of different net type number, utilize different net type number
Single layer forming net and two-layered, formed net variation combination carry out copy paper at paper.
3. a kind of method of papermaking pulp, slurry separating and recovering according to claim 1, it is characterised in that in the step S1
Retention agent ternary retention agent is changed to by double base retention agent, the ternary retention agent is bentonite, ternary retention agent and pulp-water
Mass ratio 7:1000.
4. a kind of method of papermaking pulp, slurry separating and recovering according to claim 1, it is characterised in that in the step S1
Drying strengthening agent be glyoxal polyacrylamide, the mass ratio 1.5:1000 of drying strengthening agent and pulp-water.
5. a kind of method of papermaking pulp, slurry separating and recovering according to claim 1, it is characterised in that in the step S2
Slurrying concentration inclined wire original wire side area be 180 ㎡, be expanded to 240 ㎡.
6. a kind of method of papermaking pulp, slurry separating and recovering according to claim 1, it is characterised in that in the step S2
Filtering nylon wire original mesh mesh number be 60 mesh, increase to 100 mesh.
7. a kind of method of papermaking pulp, slurry separating and recovering according to claim 1, it is characterised in that in the step S2
Big inclined wire nylon wire original mesh mesh number be 80 mesh, increase to 120 mesh.
8. a kind of method of papermaking pulp, slurry separating and recovering according to claim 1, it is characterised in that in the step S3
Pulp-making waste-water pond original reservoir volume be 120m3, increase to 300 m3.
9. a kind of method of papermaking pulp, slurry separating and recovering according to claim 1, it is characterised in that in the step S3
High pressure water jet pipe spray eye original diameter be 1 ㎜ of Ф, be reduced to 0.8 ㎜ of Ф.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811526335.1A CN109610221A (en) | 2018-12-13 | 2018-12-13 | A kind of method of papermaking pulp, slurry separating and recovering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811526335.1A CN109610221A (en) | 2018-12-13 | 2018-12-13 | A kind of method of papermaking pulp, slurry separating and recovering |
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| CN109610221A true CN109610221A (en) | 2019-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811526335.1A Pending CN109610221A (en) | 2018-12-13 | 2018-12-13 | A kind of method of papermaking pulp, slurry separating and recovering |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201440A (en) * | 2019-05-23 | 2019-09-06 | 中色科技股份有限公司 | A kind of plate filter changes paper expansion shaft harmomegathus method |
-
2018
- 2018-12-13 CN CN201811526335.1A patent/CN109610221A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201440A (en) * | 2019-05-23 | 2019-09-06 | 中色科技股份有限公司 | A kind of plate filter changes paper expansion shaft harmomegathus method |
| CN110201440B (en) * | 2019-05-23 | 2023-04-21 | 中色科技股份有限公司 | Paper changing expansion and contraction shaft expanding and contracting method of plate filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Haiyan County of Jiaxing City, Zhejiang province 314311 Shendang Town Industrial Park Applicant after: Jiaxing Bolet Paper Co., Ltd Address before: Haiyan County of Jiaxing City, Zhejiang province 314311 Shendang Town Industrial Park Applicant before: Jiaxing Bolaite Paper Industry Co. Ltd. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190412 |