CN102351339A - Method for improving decorative base paper white water recovery rate and recovery system - Google Patents
Method for improving decorative base paper white water recovery rate and recovery system Download PDFInfo
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- CN102351339A CN102351339A CN2011101813871A CN201110181387A CN102351339A CN 102351339 A CN102351339 A CN 102351339A CN 2011101813871 A CN2011101813871 A CN 2011101813871A CN 201110181387 A CN201110181387 A CN 201110181387A CN 102351339 A CN102351339 A CN 102351339A
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Abstract
The invention relates to a method for improving decorative base paper white water recovery rate and a recovery system, which belong to the technical field of paper making. The recovery system adopts a secondary sedimentation method, flocculating agents added before the treatment by a sedimentation tower are cation polyacrylamide, and sedimentation equipment is added. The concrete recovery method comprises the steps of (1) flocculating agent addition; (2) primary sedimentation; (3) secondary sedimentation; and (4) filtering method step. The recovery system is characterized in that a dissolving tank, a storage tank, a metering pump and a flow meter are sequentially connected through pipelines, the flow meter is connected with a water conveying pipeline, a material feeding device is formed, a water pump is connected with a primary sedimentation tower and a secondary sedimentation tower through the water conveying pipeline, the secondary sedimentation tower is connected with a sand filtering pool through the water conveying pipeline, and the bottom of the sedimentation tower is provided with a settling matter recovery pipeline. The method and the recovery system have the advantages that the recovery rate is high, the operation cost is low, recovered clean water passes through the sand filtering pool, the requirement of clean water for production can be reached after filtering, and the closed and cyclic application of the water for production is realized.
Description
Technical field
The invention belongs to pulp technology for making paper.
Background technology
It is all higher that decorating base paper is made employed plant fiber material, pigment, auxiliary chemical raw materials price; The height of various raw material retentions in its manufacturing processed; Not only directly determined manufacturing cost; And the loss of some starting material, particularly colored pigment also can cause water to pollute, and therefore improving its production process white water recycle rate is one of important step.
Traditional method has following several kinds usually:
1, air supporting method white water recycle: this method is paper industry tradition, typical way, but is not suitable for decorating base paper, and the white water recycle rate is low, energy consumption is high;
2, the fiber recovery machine method is coiled in many gardens: be mainly used in large-scale paper machine white water and reclaim; It reclaims mechanism and relies on filtering layer to filter, because decorating base paper plain boiled water pigment content is high, is difficult to form effective filtering layer; And in case form filtering layer; Filtration efficiency is very low, can't move with the paper making equipment coupling, and operation easier is big.
Summary of the invention
The present invention aims to provide a kind of method and recovery system that improves decorating base paper white water recycle rate, to solve problems such as prior art white water recycle rate is low, power consumption is high, operation easier is big.
The present invention mainly is made up of recovery system, and solving the technical scheme that its technical problem adopts is to adopt the secondary settling process, and before the sedimentation tower, adding flocculation agent is cationic polyacrylamide 10-20ppm, increases precipitation apparatus, and concrete recovery method is following:
1, add flocculation agent: before getting into the sedimentation tower, add flocculation agent, entering tower flow rate is controlled at 30-40m3/H;
2, first grade subsides: the plain boiled water that the workshop produces is evenly sent into the first grade subsides tower together with flocculation agent through water pump, and behind first grade subsides, sediment gets into recovery channel and regularly reclaims, and advances tower solid concentration 0.1-0.25%, sediment concentration 0.5-1%;
3, secondary sedimentation: get into secondary sedimentation tower through the plain boiled water behind the first grade subsides, entering tower flow rate is controlled at 10-20 m3/H, after the secondary sedimentation; Sediment gets into recovery channel; Regularly reclaim, advance tower solid concentration 0.05-0.1%, sediment concentration 0.3-0.8%;
4, filter: get into sand filter through residue plain boiled water after the secondary sedimentation,, get into clean water system through filtering.
Recovery system according to the invention; Dissolving vessel, storage tank, volume pump, under meter connect through pipeline successively; Under meter connects conduit, constitutes feeding device, and water pump connects first grade subsides tower, secondary sedimentation tower through conduit; Secondary sedimentation tower connects sand filter through conduit, and the sedimentation tower bottom is provided with the sediment recovery channel.
Adopt positively effect of the present invention to be:
1. the recovery is high, fiting chemical auxiliary agent particularly, increase flocculation after, organic efficiency can reach more than 95%;
2. running cost is low, owing to be to adopt the gravity natural subsidence, power consumption is low, thereby has reduced running cost;
3. reclaim clear water through sand filter, can reach the requirement of producing after the filtration, realize the use of water of productive use closed circulation with clear water.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified:
Accompanying drawing 1 is structural representation of the present invention;
1 storage tank, 2 dissolving vessels, 3 conduits, 4 water pumps, 5 pipelines, 6 under meters, 7 volume pumps, 8 first grade subsides towers, 9 sediment recovery channels, 10 secondary sedimentation towers, 11 sand filters among the figure.
Embodiment
Adopt the secondary settling process, in the sedimentation tower, adding the chemical assistant cationic polyacrylamide is 13ppm, increases precipitation apparatus, and concrete recovery method is following:
1, add flocculation agent: before getting into the sedimentation tower, add flocculation agent, entering tower flow rate is controlled at 33m3/H;
2, first grade subsides: the plain boiled water that the workshop produces is evenly sent into the first grade subsides tower together with flocculation agent through water pump, and behind first grade subsides, sediment gets into recovery channel and regularly reclaims, and advances tower solid concentration 0.1-0.15%, sediment concentration 0.5-0.7%;
3, secondary sedimentation: get into secondary sedimentation tower through the plain boiled water behind the first grade subsides, entering tower flow rate is controlled at 18m3/H, and after the secondary sedimentation, sediment gets into recovery channel, regularly reclaims, and advances tower solid concentration 0.05-0.08%, sediment concentration 0.3-0.5%;
4, filter: get into sand filter through residue plain boiled water after the secondary sedimentation,, get into clean water system through filtering.
Recovery system according to the invention; Dissolving vessel 2, storage tank 1, volume pump 7, under meter 6 connect through pipeline 5 successively; Under meter 6 connects conduit 3, constitutes feeding device, and water pump 4 connects first grade subsides tower 8, secondary sedimentation tower 10 through conduit 3; Secondary sedimentation tower 10 connects sand filter 11 through conduit 3, and the sedimentation tower bottom is provided with sediment recovery channel 9.
Feeding device is identical with prior art.
Claims (1)
1. a method and recovery system that improves decorating base paper white water recycle rate; Mainly be made up of recovery system, it is characterized in that adopting the secondary settling process, before the sedimentation tower, adding flocculation agent is cationic polyacrylamide 10-20ppm; Increase precipitation apparatus, concrete recovery method is following:
(1) add flocculation agent: before getting into the sedimentation tower, add flocculation agent, entering tower flow rate is controlled at 30-40m3/H;
(2) first grade subsides: the plain boiled water that the workshop produces is evenly sent into the first grade subsides tower together with flocculation agent through water pump, and behind first grade subsides, sediment gets into recovery channel and regularly reclaims, and advances tower solid concentration 0.1-0.25%, sediment concentration 0.5-1%;
(3) secondary sedimentation: get into secondary sedimentation tower through the plain boiled water behind the first grade subsides, entering tower flow rate is controlled at 10-20 m3/H, after the secondary sedimentation; Sediment gets into recovery channel; Regularly reclaim, advance tower solid concentration 0.05-0.1%, sediment concentration 0.3-0.8%;
(4) filter: get into sand filter through residue plain boiled water after the secondary sedimentation,, get into clean water system through filtering.
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CN2011101813871A CN102351339A (en) | 2011-06-30 | 2011-06-30 | Method for improving decorative base paper white water recovery rate and recovery system |
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CN2011101813871A CN102351339A (en) | 2011-06-30 | 2011-06-30 | Method for improving decorative base paper white water recovery rate and recovery system |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105036483A (en) * | 2015-08-14 | 2015-11-11 | 云南汉光纸业有限公司 | Multi-stage treatment and recycling system for white water of paper mill |
CN105369666A (en) * | 2015-10-13 | 2016-03-02 | 新疆国力源投资有限公司 | White water processing technology of papermaking machine |
CN114272678A (en) * | 2021-11-17 | 2022-04-05 | 合肥国轩电池材料有限公司 | Industrial wet-screening treatment equipment and treatment method for lithium iron phosphate powder material |
CN117945480A (en) * | 2024-03-26 | 2024-04-30 | 德州泰鼎新材料科技有限公司 | Waste water circulation filter equipment is used in waste paper refabrication |
Citations (5)
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CN101337752A (en) * | 2008-06-26 | 2009-01-07 | 中冶华天工程技术有限公司 | Advanced treatment process for paper-making waste water |
CN101428934A (en) * | 2008-12-10 | 2009-05-13 | 王军良 | Apparatus for treating waste water apparatus for treating waste water from regeneration slurry boxboard production |
CN101767892A (en) * | 2008-12-26 | 2010-07-07 | 王永广 | Processing technique for residual papermaking black liquor |
CN101786758A (en) * | 2010-03-31 | 2010-07-28 | 山东省环境保护科学研究设计院 | Waste paper pulping and papermaking advanced waste water treatment technique |
CN201660483U (en) * | 2010-03-26 | 2010-12-01 | 梨树县郭家店汇泉造纸机械厂 | Rapid sedimentating tower for papermaking sewage |
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2011
- 2011-06-30 CN CN2011101813871A patent/CN102351339A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101337752A (en) * | 2008-06-26 | 2009-01-07 | 中冶华天工程技术有限公司 | Advanced treatment process for paper-making waste water |
CN101428934A (en) * | 2008-12-10 | 2009-05-13 | 王军良 | Apparatus for treating waste water apparatus for treating waste water from regeneration slurry boxboard production |
CN101767892A (en) * | 2008-12-26 | 2010-07-07 | 王永广 | Processing technique for residual papermaking black liquor |
CN201660483U (en) * | 2010-03-26 | 2010-12-01 | 梨树县郭家店汇泉造纸机械厂 | Rapid sedimentating tower for papermaking sewage |
CN101786758A (en) * | 2010-03-31 | 2010-07-28 | 山东省环境保护科学研究设计院 | Waste paper pulping and papermaking advanced waste water treatment technique |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105036483A (en) * | 2015-08-14 | 2015-11-11 | 云南汉光纸业有限公司 | Multi-stage treatment and recycling system for white water of paper mill |
CN105369666A (en) * | 2015-10-13 | 2016-03-02 | 新疆国力源投资有限公司 | White water processing technology of papermaking machine |
CN114272678A (en) * | 2021-11-17 | 2022-04-05 | 合肥国轩电池材料有限公司 | Industrial wet-screening treatment equipment and treatment method for lithium iron phosphate powder material |
CN117945480A (en) * | 2024-03-26 | 2024-04-30 | 德州泰鼎新材料科技有限公司 | Waste water circulation filter equipment is used in waste paper refabrication |
CN117945480B (en) * | 2024-03-26 | 2024-05-28 | 德州泰鼎新材料科技有限公司 | Waste water circulation filter equipment is used in waste paper refabrication |
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Application publication date: 20120215 |