CN104358176A - Recovery system for white water produced from papermaking - Google Patents

Recovery system for white water produced from papermaking Download PDF

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Publication number
CN104358176A
CN104358176A CN201410602195.7A CN201410602195A CN104358176A CN 104358176 A CN104358176 A CN 104358176A CN 201410602195 A CN201410602195 A CN 201410602195A CN 104358176 A CN104358176 A CN 104358176A
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CN
China
Prior art keywords
water
filtrate
recovery
white
reserviors
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Granted
Application number
CN201410602195.7A
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Chinese (zh)
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CN104358176B (en
Inventor
李文斌
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Dongguan Lee and Man Paper Manufacturing Co Ltd
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Dongguan Lee and Man Paper Manufacturing Co Ltd
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Application filed by Dongguan Lee and Man Paper Manufacturing Co Ltd filed Critical Dongguan Lee and Man Paper Manufacturing Co Ltd
Priority to CN201410602195.7A priority Critical patent/CN104358176B/en
Publication of CN104358176A publication Critical patent/CN104358176A/en
Application granted granted Critical
Publication of CN104358176B publication Critical patent/CN104358176B/en
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Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00Wet end of machines for making continuous webs of paper
    • D21F1/66Pulp catching, de-watering, or recovering; Re-use of pulp-water

Abstract

The invention relates to the technical field of recovery of white water produced from papermaking, in particular to a recovery system for white water produced from papermaking. The recovery system comprises a white water pool, a cushion pulp pool, vacuum pumps, a multi-disk filter, a recovery pulp pool, a high-position box, a muddy water pool, a clean water pool, an ultra-clean water pool and a controller, wherein the multi-disk filter comprises multiple groups of filter disks and spraying devices; water outlets of the muddy water pool and the ultra-clean water pool are respectively connected with the spraying devices through the vacuum pumps; ultra-clean filtrate of the ultra-clean water pool is recycled to a papermaking workshop through the vacuum pumps. The recovery system for white water produced from papermaking, disclosed by the invention, can recover fibers from white water, the recovery rate of the fibers is high, the white water can be used in a closed cycle manner, and thus the papermaking water consumption is reduced, the pollution caused by emission of white water is eliminated, and the water resource is saved.

Description

A kind of mthod of white water from paper making recovery system
Technical field
The application relates to mthod of white water from paper making recovery technology field, particularly relates to a kind of mthod of white water from paper making recovery system.
Background technology
In recent years, country gets up tighter to environmental requirement, sewage drainage standard is more and more higher, and paper industry is the use of China
Water rich and influential family, and due to paper mill discharge waste water be difficult to recycling, serious impact is caused on environment, in order to meet wastewater discharge standard, enterprise only has and constantly improves production technology, the wastewater processing technology that transformation falls behind, reduce water consumption ability, by industrial water recycle after treatment.In paper making process, paper-making pulping process can consume a large amount of water yields, and plain boiled water discharge capacity is comparatively large, causes the wasting of resources, relies on white water recycling can greatly reduce the consumption of the water yield.
In prior art, the recovery production capacity of mthod of white water from paper making is often not enough, and stripping slurry weak effect, causes filtrate quality poor, make the rinse dosage of paper machine large, and white water recycle utilization rate is not high.
summary of the invention
The object of the application is to avoid weak point of the prior art and provides that a kind of white water recovery rate is high, the mthod of white water from paper making recovery system of energy-conserving and environment-protective.
The object of the application is achieved through the following technical solutions:
A kind of mthod of white water from paper making recovery system is provided, comprise white water chest, bed course stock tank, vavuum pump, filter and recovery stock tank, it is characterized in that: also comprise muddy water pond, clear water reserviors, super clear water reserviors and controller, described white water chest is communicated with respectively by the stock inlet of described vavuum pump with described filter with described bed course stock tank, and the grout outlet of described filter is communicated with described recovery stock tank;
Described filter is many disk filters, described many disk filters comprise main shaft, be fixed on many groups filtering table of described main shaft and be arranged at the spray equipment of described filtering table both sides, the filtrate (liquid of described many group filtering tables is provided with distributing valve, described distributing valve is provided with three filtrate (liquids, described three filtrate (liquids are respectively turbid filtrate (liquid, clear filtrate exports and surpasses clear filtrate outlet, described turbid filtrate (liquid is communicated with described muddy water pond, described clear filtrate outlet is communicated with described clear water reserviors, described super clear filtrate outlet is communicated with described super clear water reserviors, described muddy water pond is connected with described spray equipment respectively by vavuum pump with the delivery port of described super clear water reserviors, the super clear filtrate in described super pure pond is recycled to paper machine room by vavuum pump.
wherein,often organize filtering table and comprise several filtration discs, each filtration disc comprises several fanning strips, and each fanning strip is all fixedly connected with described main shaft by bolt.
wherein,described fanning strip comprises fan-shaped sieve and is arranged at the frame of described fan-shaped sieve surrounding, described fan-shaped sieve is provided with sieve aperture, the surface of described fan-shaped sieve is corrugated, the root of described fan-shaped sieve is provided with liquid collecting funnel, the bottom of described liquid collecting funnel is provided with base plate, described base plate is fixedly connected with described main shaft, and the liquid outlet of described liquid collecting funnel bottom is connected with corresponding filtrate (liquid.
wherein,described spray equipment comprises stripping slurry water injector and washes net water injector, described stripping slurry water injector comprises stripping slurry sparge pipe, described net water injector of washing comprises and washes net sparge pipe, the described water spray end washing net sparge pipe is provided with two shower nozzle, and described stripping slurry sparge pipe is all communicated with described muddy water pond with described net sparge pipe of washing.
wherein,described muddy water pond, described clear water reserviors and described super clear water reserviors are all the ponds surrounded by four sides wall, and the first division wall shared by one side between described clear water reserviors with described super clear water reserviors is connected, the second division wall that described clear water reserviors are shared by one side with described muddy water pond is connected.
wherein,the height of described first division wall in the four sides wall of described super clear water reserviors is lower than the height of its excess-three face wall, and the height of described second division wall in the four sides wall of described clear water reserviors is lower than the height of its excess-three face wall.
wherein,pipeline between described white water chest and described vavuum pump and the pipeline between described bed course stock tank and described vavuum pump are provided with flow control valve, and described flow control valve is electrically connected with described controller.
wherein,described super clear water reserviors and described recovery stock tank are provided with liquid level sensor, and described liquid level sensor is electrically connected with described controller.
the beneficial effect of the application:
The mthod of white water from paper making recovery system of the application, after the plain boiled water produced in paper machine paper-making process and bed course slurry are delivered to header box mixing, send into defeated many disk filters recycle, along with filtering table continuous print rotates, produce continuous print filtration, the filtrate of filtered and recycled is carried muddy water pond, clear water reserviors and super clear water reserviors by the distributing valve of many disk filters respectively, and the turbid plain boiled water wherein reclaimed in muddy water pond is delivered to the spray equipment of many disk filters again for cleaning wire side and peeling off the pulp layer on filter disc; The super clear filtrate reclaimed in super clear water reserviors can be used for the high-pressure spraying of web part of paper machine, thus reduces rinse dosage, and the slag reclaimed in stock tank is starched through process recycled fiber and filler.The mthod of white water from paper making recovery system of the application not only can from plain boiled water recycled fiber, fiber recovery is high, water can also be made to obtain closed circulation and use, thus reduce papermaking water consumption, eliminate the pollution of plain boiled water discharge, saving water resource, and it is high to have automaticity, reliable advantage easy and simple to handle.
Accompanying drawing explanation
Utilize accompanying drawing to be described further the application, but the content in accompanying drawing does not form any restriction to the application.
Fig. 1 is the structural representation of a kind of mthod of white water from paper making recovery system of the application.
Fig. 2 is the structural representation of many disk filters of a kind of mthod of white water from paper making recovery system of the application.
Fig. 3 is the structural representation of the fanning strip of a kind of mthod of white water from paper making recovery system of the application.
Reference numeral:
White water chest 1;
Bed course stock tank 2;
Many disk filters 3, filtering table 31;
Fanning strip 32, fan-shaped sieve 321, sieve aperture 3211;
Frame 322, liquid collecting funnel 323, liquid collecting funnel 323, base plate 324,
Distributing valve 33, turbid filtrate (liquid 331, clear filtrate outlet 332, super clear filtrate outlet 333;
Reclaim stock tank 4;
Muddy water pond 5;
Clear water reserviors 6;
Super clear water reserviors 7;
Stripping slurry sparge pipe 8;
Wash net sparge pipe 9.
Detailed description of the invention
With the following Examples and accompanying drawing the application is described further.
A kind of mthod of white water from paper making recovery system of the application, as shown in Figure 1 to Figure 3, comprise white water chest 1, bed course stock tank 2, vavuum pump, filter and recovery stock tank 4, also comprise muddy water pond 5, clear water reserviors 6, super clear water reserviors 7 and controller, white water chest 1 is communicated with the stock inlet of filter respectively by vavuum pump with bed course stock tank 2, and the grout outlet of filter is communicated with recovery stock tank 4.
Filter is many disk filters 3, many disk filters 3 comprise main shaft, be fixed on many groups filtering table 31 of main shaft and be arranged at the spray equipment of filtering table 31 both sides, the filtrate (liquid of many groups filtering table 31 is provided with distributing valve 33, distributing valve 33 is provided with three filtrate (liquids, three filtrate (liquids are respectively turbid filtrate (liquid 331, clear filtrate outlet 332 and super clear filtrate outlet 333, turbid filtrate (liquid 331 is communicated with muddy water pond 5, clear filtrate outlet 332 is communicated with clear water reserviors 6, super clear filtrate outlet 333 is communicated with super clear water reserviors 7, muddy water pond 5 is connected with spray equipment respectively by vavuum pump with the delivery port of super clear water reserviors 7, the super clear filtrate in super pure pond 1 is recycled to paper machine room by vavuum pump.
Distributing valve 33 adopts plane contact type, makes filtering table 31 each several part be in different duties by the subregion on distributing valve 33:
Main shaft drives filtering table 31 to rotate, when under fanning strip 32 immersed in liquid level, form the turbid filtrate of vacuum by the water of fanning strip 32, the fiber in many disk filter 3 cell bodies and filling adsorption, on filter screen, form a fiber cushion, in this region, sub-fraction fiber and filler through filter screen, form a kind of filtrate of muddiness, are called turbid filtrate district together with filtrate, be discharged to muddy water pond 5 by discharging tube, the turbid plain boiled water in muddy water pond 5 can be used for washing away receiving hopper and dilution output slurry;
Main shaft is rotated further, at this moment the fiber cushion on filtering table 31 has reached certain thickness, play filter medium, under vacuum draw effect, the fiber in filtrate and filler are adsorbed on bed course, now be in region of no pressure in distributing valve 33 inside, solid content through filter screen reduces greatly, forms a kind of filtrate of clarification, is called clear filtrate, this clear filtrate enters clear filtrate pond, and this part filtrate can be used for washes net stripping slurry;
Main shaft is rotated further, and the pulp layer on filtering table 31 continues to thicken, and filter effect is better, and the pulp layer on filter screen continues dehydration, and filter cake mass dryness fraction increases, and now filtrate clarity raises further, and this part filtrate is called super clear filtrate, can be used for web part of paper machine;
Main shaft is rotated further, and vacuum action fades away, and enters Bao Jiang district (i.e. atmospheric region), at this moment the fan-shaped current of the spray equipment ejection of filtering table 31 both sides start to peel off pulp layer, under the effect of self gravitation, volume falls into receiving hopper, is flushed to discharging opening by punching slurry pipe current and is diluted;
Filtering table 31 turns to washes barrier, this district communicates with air, the current sprayed by the nozzle of swinging spray device make filter screen regenerate, and the filter screen recovered after filter capacity enters next filter cycle again, like this, along with filtering table 31 continuous print rotates, make fanning strip 32 be operated in different intervals, produce continuous print filtration, recycled fiber and filler from plain boiled water, and make super clear filtrate reuse, or pulp concentration is made to reach requirement.
Concrete, often organize filtering table 31 and comprise several filtration discs, each filtration disc comprises several fanning strips 32, and each fanning strip 32 is all fixedly connected with main shaft by bolt.
Concrete, fanning strip 32 comprises fan-shaped sieve 321 and is arranged at the frame 322 of fan-shaped sieve 321 surrounding, fan-shaped sieve 321 is provided with sieve aperture 3211, the surface of fan-shaped sieve 321 is corrugated, the root of fan-shaped sieve 321 is provided with liquid collecting funnel 323, the bottom of liquid collecting funnel 323 is provided with base plate 324, and base plate 324 is fixedly connected with main shaft, and the liquid outlet bottom liquid collecting funnel 323 is connected with corresponding filtrate (liquid.
In the present embodiment, spray equipment comprises stripping slurry water injector and wash net water injector, and stripping slurry water injector comprises stripping slurry sparge pipe 8, washes net water injector and comprises and wash net sparge pipe 9, the water spray end washing net sparge pipe 9 is provided with two shower nozzle, stripping slurry sparge pipe 8 with wash net sparge pipe 9 and be all communicated with muddy water pond 5.
In the present embodiment, muddy water pond 5, clear water reserviors 6 and super clear water reserviors 7 are all the ponds surrounded by four sides wall, and the first division wall shared by one side between clear water reserviors 6 with super clear water reserviors 7 is connected, the second division wall that clear water reserviors 6 are shared by one side with muddy water pond 5 is connected.
The height of the first division wall in the four sides wall of super clear water reserviors 7 is lower than the height of its excess-three face wall, the height of the second division wall in the four sides wall of clear water reserviors 6 lower than the height of its excess-three face wall, thus makes plain boiled water overflow in super clear water reserviors 7 to clear water reserviors 6 and muddy water pond 5.
In the present embodiment, the pipeline between white water chest 1 and vavuum pump and the pipeline between bed course stock tank 2 and vavuum pump are provided with flow control valve, and flow control valve is electrically connected with controller, thus control flow.
Super clear water reserviors 7 and recovery stock tank 4 are provided with liquid level sensor, and liquid level sensor is electrically connected with controller, thus controls the liquid level in each pond, realizes Automated condtrol.
Operation principle is as follows:
After the plain boiled water produced in paper machine paper-making process and bed course slurry are delivered to header box mixing, send into defeated many disk filters 3 recycle, along with filtering table 31 continuous print rotates, produce continuous print filtration, the filtrate of filtered and recycled is carried muddy water pond 5, clear water reserviors 6 and super clear water reserviors 7 by the distributing valve 33 of many disk filters 3 respectively, wherein: the turbid plain boiled water reclaimed in muddy water pond 5 is delivered to the spray equipment of many disk filters 3 again for cleaning wire side and peeling off the pulp layer on filter disc; The super clear filtrate reclaimed in super clear water reserviors 7 can be used for the high-pressure spraying of web part of paper machine, thus reduces rinse dosage, and the slag reclaimed in stock tank 4 is starched through process recycled fiber and filler.
The mthod of white water from paper making recovery system of the application not only can from plain boiled water recycled fiber, fiber recovery is high, water can also be made to obtain closed circulation and use, thus reduce papermaking water consumption, eliminate the pollution of plain boiled water discharge, saving water resource, and it is high to have automaticity, reliable advantage easy and simple to handle.

Claims (8)

1. a mthod of white water from paper making recovery system, comprise white water chest, bed course stock tank, vavuum pump, filter and recovery stock tank, it is characterized in that: also comprise muddy water pond, clear water reserviors, super clear water reserviors and controller, described white water chest is communicated with respectively by the stock inlet of described vavuum pump with described filter with described bed course stock tank, and the grout outlet of described filter is communicated with described recovery stock tank;
Described filter is many disk filters, described many disk filters comprise main shaft, be fixed on many groups filtering table of described main shaft and be arranged at the spray equipment of described filtering table both sides, the filtrate (liquid of described many group filtering tables is provided with distributing valve, described distributing valve is provided with three filtrate (liquids, described three filtrate (liquids are respectively turbid filtrate (liquid, clear filtrate exports and surpasses clear filtrate outlet, described turbid filtrate (liquid is communicated with described muddy water pond, described clear filtrate outlet is communicated with described clear water reserviors, described super clear filtrate outlet is communicated with described super clear water reserviors, described muddy water pond is connected with described spray equipment respectively by vavuum pump with the delivery port of described super clear water reserviors, the super clear filtrate in described super pure pond is recycled to paper machine room by vavuum pump.
2. a kind of mthod of white water from paper making recovery system according to claim 1, is characterized in that: often organize filtering table and comprise several filtration discs, each filtration disc comprises several fanning strips, and each fanning strip is all fixedly connected with described main shaft by bolt.
3. a kind of mthod of white water from paper making recovery system according to claim 2, it is characterized in that: described fanning strip comprises fan-shaped sieve and is arranged at the frame of described fan-shaped sieve surrounding, described fan-shaped sieve is provided with sieve aperture, the surface of described fan-shaped sieve is corrugated, the root of described fan-shaped sieve is provided with liquid collecting funnel, the bottom of described liquid collecting funnel is provided with base plate, and described base plate is fixedly connected with described main shaft, and the liquid outlet of described liquid collecting funnel bottom is connected with corresponding filtrate (liquid.
4. a kind of mthod of white water from paper making recovery system according to claim 1, it is characterized in that: described spray equipment comprises stripping slurry water injector and washes net water injector, described stripping slurry water injector comprises stripping slurry sparge pipe, described net water injector of washing comprises and washes net sparge pipe, the described water spray end washing net sparge pipe is provided with two shower nozzle, and described stripping slurry sparge pipe is all communicated with described muddy water pond with described net sparge pipe of washing.
5. a kind of mthod of white water from paper making recovery system according to claim 1, it is characterized in that: described muddy water pond, described clear water reserviors and described super clear water reserviors are all the ponds surrounded by four sides wall, and the first division wall shared by one side between described clear water reserviors with described super clear water reserviors is connected, the second division wall that described clear water reserviors are shared by one side with described muddy water pond is connected.
6. a kind of mthod of white water from paper making recovery system according to claim 5, it is characterized in that: the height of described first division wall in the four sides wall of described super clear water reserviors is lower than the height of its excess-three face wall, and the height of described second division wall in the four sides wall of described clear water reserviors is lower than the height of its excess-three face wall.
7. a kind of mthod of white water from paper making recovery system according to claim 1, it is characterized in that: the pipeline between described white water chest and described vavuum pump and the pipeline between described bed course stock tank and described vavuum pump are provided with flow control valve, and described flow control valve is electrically connected with described controller.
8. a kind of mthod of white water from paper making recovery system according to claim 1, is characterized in that: described super clear water reserviors and described recovery stock tank are provided with liquid level sensor, and described liquid level sensor is electrically connected with described controller.
CN201410602195.7A 2014-10-31 2014-10-31 A kind of mthod of white water from paper making recovery system Active CN104358176B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108642947A (en) * 2018-03-05 2018-10-12 泰州新源电工器材有限公司 A kind of circulating treating system of insulating board plain boiled water
CN109594387A (en) * 2018-12-28 2019-04-09 江苏理文造纸有限公司 A kind of plain boiled water processing method of papermaking green end
CN111074664A (en) * 2019-12-30 2020-04-28 江苏金莲纸业有限公司 Papermaking plain boiled water recovery device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB659444A (en) * 1948-03-04 1951-10-24 Henry Mitchell Hunter Improvements in continuous disk filter
CN101861194A (en) * 2007-09-26 2010-10-13 戈德弗兰 Disc filtration device
CN102755775A (en) * 2011-04-29 2012-10-31 美卓造纸机械公司 Fastening element
CN203075734U (en) * 2011-06-22 2013-07-24 美卓造纸机械公司 Device for sealing disc filter
CN204282117U (en) * 2014-10-31 2015-04-22 东莞理文造纸厂有限公司 A kind of mthod of white water from paper making recovery system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB659444A (en) * 1948-03-04 1951-10-24 Henry Mitchell Hunter Improvements in continuous disk filter
CN101861194A (en) * 2007-09-26 2010-10-13 戈德弗兰 Disc filtration device
CN102755775A (en) * 2011-04-29 2012-10-31 美卓造纸机械公司 Fastening element
CN203075734U (en) * 2011-06-22 2013-07-24 美卓造纸机械公司 Device for sealing disc filter
CN204282117U (en) * 2014-10-31 2015-04-22 东莞理文造纸厂有限公司 A kind of mthod of white water from paper making recovery system

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
徐超群等: "国产大规格DPL512多圆盘过滤机的设计与开发", 《湖南造纸》 *
李永胜等: "用多圆盘过滤机回收新闻纸白水", 《纸和造纸》 *
田东风等: "PL型多圆盘过滤机的设计开发和运行实践", 《国际造纸》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108642947A (en) * 2018-03-05 2018-10-12 泰州新源电工器材有限公司 A kind of circulating treating system of insulating board plain boiled water
CN109594387A (en) * 2018-12-28 2019-04-09 江苏理文造纸有限公司 A kind of plain boiled water processing method of papermaking green end
CN111074664A (en) * 2019-12-30 2020-04-28 江苏金莲纸业有限公司 Papermaking plain boiled water recovery device
CN111074664B (en) * 2019-12-30 2020-10-23 江苏金莲纸业有限公司 Papermaking plain boiled water recovery device

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