CN104358176B - A kind of mthod of white water from paper making recovery system - Google Patents

A kind of mthod of white water from paper making recovery system Download PDF

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Publication number
CN104358176B
CN104358176B CN201410602195.7A CN201410602195A CN104358176B CN 104358176 B CN104358176 B CN 104358176B CN 201410602195 A CN201410602195 A CN 201410602195A CN 104358176 B CN104358176 B CN 104358176B
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water
filtrate
clear water
mthod
reserviors
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CN104358176A (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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    • 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 application relates to mthod of white water from paper making recovery technology field, particularly relate to a kind of mthod of white water from paper making recovery system, including white water chest, bed course stock tank, vacuum pump, many disk filters, reclaim stock tank, header box, muddy water pond, clear water reserviors, super clear water reserviors and controller, many disk filters include organizing filtering table and spray equipment more, the outlet of muddy water pond and super clear water reserviors is connected with spray equipment by vacuum pump respectively, and the super clear filtrate in super pure pond is recycled to paper machine room by vacuum pump.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, moreover it is possible to makes plain boiled water obtain closed circulation and uses, thus reduce papermaking water consumption, eliminates the pollution of plain boiled water discharge, saving water resource.

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, environmental requirement is got up the tightest by country, sewage drainage standard is more and more higher, paper industry be China use water rich and influential family, and the waste water discharged due to paper mill is difficult to recycle, environment is caused serious impact, in order to meet wastewater discharge standard, enterprise only constantly improves production technology, the wastewater processing technology that transformation falls behind, reduce water consumption ability, industrial water is recycled after treatment.In paper making process, paper-making pulping process can consume the substantial amounts of water yield, and plain boiled water discharge capacity is relatively big, 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 the most not enough, and shells slurry weak effect, causes filtrate quality poor so that the rinse dosage of paper machine is big, and white water recycle utilization rate is the highest.
Summary of the invention
The purpose of the application is to avoid weak point of the prior art to provide a kind of white water recovery rate height, the mthod of white water from paper making recovery system of energy-conserving and environment-protective.
The purpose of the application is achieved through the following technical solutions:
A kind of mthod of white water from paper making recovery system is provided, including white water chest, bed course stock tank, vacuum pump, filter and recovery stock tank, also include muddy water pond, clear water reserviors, super clear water reserviors and controller, described white water chest is connected by the stock inlet of described vacuum pump with described filter respectively with described bed course stock tank, and the grout outlet of described filter connects with described recovery stock tank;
Described filter is many disk filters, described many disk filters include main shaft, it is fixed on many groups filtering table of described main shaft and is 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 connects with described muddy water pond, the outlet of described clear filtrate connects with described clear water reserviors, the outlet of described super clear filtrate connects with described super clear water reserviors, the outlet of described muddy water pond and described super clear water reserviors is connected with described spray equipment by vacuum pump respectively, the super clear filtrate of described super clear water reserviors is recycled to paper machine room by vacuum pump.
Wherein, often group filtering table includes that several filter disc, and each filtration disc includes several fanning strips, and each fanning strip is all connected by bolt and described main shaft are fixing.
Wherein, described fanning strip includes 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 fixing with described main shaft to be connected, the liquid outlet of described liquid collecting funnel bottom
It is connected with corresponding filtrate (liquid.
Wherein, described spray equipment includes stripping slurry water injector and washes net water injector, and described stripping slurry water injector includes stripping slurry sparge pipe, described in wash net water injector and include washing net sparge pipe, described in wash the water spray end of net sparge pipe and be provided with double shower nozzle,
Described stripping slurry sparge pipe all connects 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 less 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 less than the height of its excess-three face wall.
Wherein, the pipeline between pipeline and described bed course stock tank and described vacuum pump between described white water chest and described vacuum pump is provided with flow control valve, and described flow control valve electrically connects 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 electrically connects 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 being recovered by filtration 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 the pulp layer peeled off 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, reclaims the slurry in stock tank through processing 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, moreover it is possible to makes water obtain closed circulation and uses, 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 that the application is described further, but the content in accompanying drawing does not constitute 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:
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 the application is described further by accompanying drawing.
A kind of mthod of white water from paper making recovery system of the application, as shown in Fig. 1 to Fig. 3, including white water chest 1, bed course stock tank 2,
Vacuum pump, filter and recovery stock tank 4, also include muddy water pond 5, clear water reserviors 6, super clear water reserviors 7 and controller, and white water chest 1 is connected with the stock inlet of filter by vacuum pump respectively with bed course stock tank 2, and the grout outlet of filter connects with reclaiming stock tank 4.
Filter is many disk filters 3, many disk filters 3 include main shaft, it is fixed on many groups filtering table 31 of main shaft and is arranged at the spray equipment of filtering table 31 both sides, the filtrate (liquid of many group filtering tables 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 purified liquor outlet 333, turbid filtrate (liquid 331 connects with muddy water pond 5, clear filtrate outlet 332 connects with clear water reserviors 6, super clear filtrate outlet 333 connects with super clear water reserviors 7, the outlet of muddy water pond 5 and super clear water reserviors 7 is connected with spray equipment by vacuum pump respectively, the super clear filtrate of super clear water reserviors 7 is recycled to paper machine room by vacuum pump.
Distributing valve 33 uses 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, in fiber in many disk filter 3 cell bodies and filling adsorption to filter screen, form a fiber cushion, in this region, sub-fraction fiber and filler through filter screen, form the filtrate of a kind of muddiness, the most turbid filtrate district together with filtrate, being 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, playing the effect of filter medium, under vacuum draw effect, fiber and filler in filtrate are adsorbed on bed course, now inside distributing valve 33, it is in region of no pressure, solid content through filter screen is substantially reduced, and forms the filtrate of a kind of clarification, referred to as clear filtrate, this clear filtrate enters clear filtrate pond, and this portion filtrate can be used for washing net stripping slurry;Main shaft is rotated further, and the pulp layer on filtering table 31 continues to thicken, and filter effect is more preferable, and the pulp layer on filter screen continues dehydration, and filter cake mass dryness fraction increases, and now filtrate clarity raises further, and this portion filtrate is referred to as 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 in receiving hopper, is flushed to discharging opening by punching slurry pipe current and is diluted;Filtering table 31 turns to wash barrier, this district communicates with air, the current sprayed by the nozzle of swinging spray device make filter screen regenerate, and recover the filter screen after filter capacity and enter back into next filter cycle, 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 group filtering table 31 includes that several filter disc, and each filtration disc includes several fanning strips 32, and each fanning strip 32 is all connected by bolt and main shaft are fixing.
Concrete, fanning strip 32 includes 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 collection funnel 323, the bottom of liquid collecting funnel 323 is provided with base plate 324, and base plate 324 is fixing with main shaft to be connected, and the liquid outlet bottom liquid collecting funnel 323 is connected with corresponding filtrate (liquid.
In the present embodiment, spray equipment includes stripping slurry water injector and washes net water injector, and stripping slurry water injector includes stripping slurry sparge pipe 8, washes net water injector and includes washing net sparge pipe 9, the water spray end washing net sparge pipe 9 is provided with double shower nozzle, and stripping slurry sparge pipe 8 all connects with muddy water pond 5 with washing net sparge pipe 9.
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, and clear water reserviors 6 and muddy water pond 5 are by one side
The second division wall be connected.
The height of the first division wall in the four sides wall of super clear water reserviors 7 is less 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 is less than the height of its excess-three face wall, so that the plain boiled water overflow in super clear water reserviors 7 is to clear water reserviors 6 and muddy water pond 5.
In the present embodiment, the pipeline between pipeline and bed course stock tank 2 and vacuum pump between white water chest 1 and vacuum pump is provided with flow control valve, and flow control valve is electrically connected with the controller, thus controls 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 the controller, thus controls the liquid level in each pond, it is achieved 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 being recovered by filtration 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 the pulp layer peeled off 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, reclaims the slurry in stock tank 4 through processing 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, moreover it is possible to makes water obtain closed circulation and uses, 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 (6)

1. a mthod of white water from paper making recovery system, including white water chest, bed course stock tank, vacuum pump, filter and recovery stock tank, it is characterized in that: also include muddy water pond, clear water reserviors, super clear water reserviors and controller, described white water chest is connected by the stock inlet of described vacuum pump with described filter respectively with described bed course stock tank, and the grout outlet of described filter connects with described recovery stock tank;
Described filter is many disk filters, described many disk filters include main shaft, it is fixed on many groups filtering table of described main shaft and is 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 connects with described muddy water pond, the outlet of described clear filtrate connects with described clear water reserviors, the outlet of described super clear filtrate connects with described super clear water reserviors, the outlet of described muddy water pond and described super clear water reserviors is connected with described spray equipment by vacuum pump respectively, the super clear filtrate of described super clear water reserviors is recycled to paper machine room by vacuum pump;
Often group filtering table includes that several filter disc, and each filtration disc includes several fanning strips, and each fanning strip is all connected by bolt and described main shaft are fixing;
Described fanning strip includes 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 fixing with described main shaft to be connected, and the liquid outlet of described liquid collecting funnel bottom is connected with corresponding filtrate (liquid.
A kind of mthod of white water from paper making recovery system the most according to claim 1, it is characterized in that: described spray equipment includes stripping slurry water injector and washes net water injector, described stripping slurry water injector includes stripping slurry sparge pipe, described net water injector of washing includes washing net sparge pipe, the described water spray end washing net sparge pipe is provided with double shower nozzle, and described stripping slurry sparge pipe all connects with described muddy water pond with described net sparge pipe of washing.
A kind of mthod of white water from paper making recovery system the most 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.
A kind of mthod of white water from paper making recovery system the most according to claim 3, it is characterized in that: the height of described first division wall in the four sides wall of described super clear water reserviors is less 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 less than the height of its excess-three face wall.
A kind of mthod of white water from paper making recovery system the most according to claim 1, it is characterized in that: the pipeline between pipeline and described bed course stock tank and described vacuum pump between described white water chest and described vacuum pump is provided with flow control valve, and described flow control valve electrically connects with described controller.
A kind of mthod of white water from paper making recovery system the most according to claim 1, it is characterised in that: described super clear water reserviors and described recovery stock tank are provided with liquid level sensor, and described liquid level sensor electrically connects 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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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
CN111074664B (en) * 2019-12-30 2020-10-23 江苏金莲纸业有限公司 Papermaking plain boiled water recovery device
CN111188224A (en) * 2020-01-03 2020-05-22 山东太阳纸业股份有限公司 Myopia-preventing paper and preparation method thereof

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* 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
AU2007359489B2 (en) * 2007-09-26 2013-10-17 Gaudfrin Disc filtration device
FI123263B (en) * 2011-04-29 2013-01-15 Metso Paper Inc Fasteners
FI9810U1 (en) * 2011-06-22 2012-09-24 Metso Paper Inc Sealing of filtrate valve in 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

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