CN101328692B

CN101328692B - Paper pulp fabrication process and system

Info

Publication number: CN101328692B
Application number: CN2007101177691A
Authority: CN
Inventors: 李国林
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-22
Filing date: 2007-06-22
Publication date: 2011-07-06
Anticipated expiration: 2027-06-22
Also published as: CN101328692A

Abstract

The invention relates to a process and a system for producing pulp. The process comprises the following steps that: raw materials after cutting and dust removal are processed by stewing with alkaliferous water according to the prior art; the raw materials are stewed into yellow pulp, wherein, wastewater generated in the steam production process, after the precipitation treatment, is used for removing dust generated in the gas production process by a gas supply system, and for recycling of atomized water sprayed in the waste gas purification treatment link. In the process of producing the pulp and paper, sewage produced by a plurality of procedures is treated and then directly returned to be used in other procedures, thereby greatly reducing sewage amount needed to be treated, reducing sewage treatment cost; waste produced in the process of sewage treatment is also utilized comprehensively, and the treatment process completely meets the requirement of environmental protection. The special device adopted in the invention can treat the sewage with high efficiency, and make the sewage meet the requirement of environmental protection. The invention aims to provide a process and a system for producing the pulp which has small investment, environmental protection and energy conservation, and can make the sewage discharge reach the mark or realize zero discharge.

Description

Paper pulp fabrication process and system

Technical field

The present invention relates to a kind of paper pulp fabrication process and system.

Background technology

Existing paper pulp fabrication process and system are in the process of producing the paper pulp paper product, can produce a large amount of trade effluents, if these trade effluents are directly discharged, the meeting serious environment pollution is if adopt existing paper pulp manufacturing industry sewage treatment process to handle, because sewage load is bigger, its equipment investment meeting is very high, often make middle-size and small-size paper pulp paper product enterprise be difficult to bear, its treatment effect is also not ideal, is difficult to reach the sewage disposal discharge standard of national regulation.

Summary of the invention

The object of the present invention is to provide a kind of small investment, environmental protection and energy saving can make the up to standard or zero-emission of sewage discharge and energy-saving and cost-reducing the time, paper pulp fabrication process and system that product yield also improves synchronously.

Paper pulp fabrication process of the present invention, it comprises the steps:

1) raw material that will be used to make paper pulp according to prior art cut, dust removal process;

2) will cut, the raw material after the dedusting carries out the boiling processed according to the water that the prior art utilization contains alkali, raw material is steamed into yellow slurry, the waste water that wherein production steam course produces is through after the precipitation process, be transported in the clear water circulatory pool, what be used for removing the dust that air supply system produced at gas making process burner hearth and be used for the waste gas purification processing links spurts recycling of atomized water again;

3) the Huang slurry is spurted expanding treatment according to prior art;

4) Huang that step 3) obtained slurry adds water and carries out agitator treating and the precipitation process first time, removes foreign material such as wherein iron, stone, sand;

5) the Huang slurry that step 4) is obtained carries out washing separating treatment the first time, removes impurity wherein, and black liquor is separated from the Huang slurry, obtains pulp fibres, and the black liquor of discharging is carried out the screen cloth filtration treatment;

6) the resulting pulp fibres of screen cloth filtration treatment in the step 5) being concentrated centrifugation handles, carry out the black liquor filtering and concentrating and handle and obtain lignin concentrating black liquor that centrifugation processing and screen cloth filtration treatment discharged, then lignin is carried out the black liquor lignin and solidify the regeneration processing, the black liquor that the black liquor filtering and concentrating is dealt utilizes cinder filtration technology to carry out filtration treatment again, store first into through the water that contains alkali of cinder filtration PROCESS FOR TREATMENT and contain in the alkali circulation cistern, be used for step 2) the required water that contains alkali of boiling processed replenish the supply and step 4) and following step 7) in the replenishing the supply of required water;

7) pulp fibres that the screen cloth filtration treatment in step 5) and the step 6) is obtained adds water and carries out agitator treating and the precipitation process second time, removes foreign material such as wherein iron, stone, sand;

8) the water slurry fiber that adds that step 7) is obtained carries out washing separating treatment the second time, removes impurity wherein, and black liquor is separated from pulp fibres, obtains pulp fibres, and the black liquor of discharging is carried out described screen cloth filtration treatment;

9) the resulting pulp fibres of the filtration treatment of screen cloth described in the step 8) being concentrated centrifugation handles, carry out the black liquor filtering and concentrating and handle and obtain lignin concentrating black liquor that centrifugation processing and screen cloth filtration treatment discharged, then lignin is carried out the black liquor lignin and solidify the regeneration processing, the black liquor that the black liquor filtering and concentrating is dealt utilizes cinder filtration technology to carry out filtration treatment again, store first into through the water that contains alkali of cinder filtration PROCESS FOR TREATMENT and contain in the alkali circulation cistern, be used for step 2) the required water that contains alkali of boiling processed replenish the supply and step 4) and step 7) in the replenishing the supply of required water;

10) pulp fibres that step 9) is obtained adds water and carries out agitator treating and precipitation process for the third time, removes foreign material such as wherein iron, stone, sand;

11) the water slurry fiber that adds that step 10) is obtained washs separating treatment for the third time, removes impurity wherein, and black liquor is separated from pulp fibres, obtains pulp fibres, and the black liquor of discharging is carried out the screen cloth filtration treatment;

12) black liquor that the screen cloth filtration treatment is discharged carries out the cinder filtration PROCESS FOR TREATMENT, the treated water that contains alkali stores in the buck circulatory pool, be used for step 7) replenishing the supply of agitator treating and the required water of precipitation process for the third time in agitator treating and precipitation process and the step 10) for the second time, perhaps replenish and be transported in the clear water circulatory pool, what be used for removing the dust that air supply system produced at gas making process burner hearth and be used for the waste gas purification processing links spurts recycling of atomized water;

13) pulp fibres that obtains of pulp fibres that step 11) is obtained and the screen cloth filtration treatment in the step 12) carries out acid-base neutralization and handles after concentration;

14) pulp fibres that step 13) is obtained screens the processing of removing sand according to prior art, the remove sand water of handle discharging of screening give up and starches the recovery filtration treatment, the useless slurry that obtains is delivered to next procedure carries out fiber bleached processing, after useless slurry reclaimed water that filtration treatment discharges and carry out fine sand purification filtering PROCESS FOR TREATMENT, be used for replenish step 10 by peace and quiet water circulation tank again) for the third time in agitator treating and/or precipitation process and the step 13) acid-base neutralization handle and/or this step in the screening required water of processing that removes sand, after perhaps utilizing existing Water Treatment cleanser that it is carried out the chemical cleaning method processing, be used further to be delivered to water system;

15) pulp fibres that step 14) is obtained carries out fiber bleached processing according to prior art, the water that fiber bleached processing is discharged carries out after white slurry filtered and recycled handles, carrying out the fine sand purification filtering again handles, use the pond to be delivered to water system by peace and quiet water circulation again, perhaps it is carried out being used further to be delivered to water system after chemical cleaning method is handled, the pulp fibres that produces during dialogue slurry filtered and recycled is handled reclaims white slurry handle after, pulp fibres is delivered to following copied slurry or paper technology is handled again;

16) pulp fibres that step 15) is obtained is copied slurry or papermaking according to prior art, carry out after white slurry filtered and recycled handles for copying slurry or waste water that papermaking produced, carrying out the fine sand purification filtering again handles, use the pond to be delivered to water system by peace and quiet water circulation again, perhaps it is carried out being used further to be delivered to water system after chemical cleaning method is handled.

Paper pulp fabrication process of the present invention, in the wherein said step 4) to Huang slurry add water carry out first time agitator treating and precipitation process before it is carried out the shove processing according to prior art, after the water that the shove processing is discharged carries out the processing of concentrated black liquid precipitation and centrifugal separation, again the water of discharging being carried out the screen cloth filtration, purification handles, and then the water of discharging carried out the cinder filtration PROCESS FOR TREATMENT, the water that contains alkali that the cinder filtration PROCESS FOR TREATMENT is discharged stores in the buck circulatory pool, is used for step 2) the replenishing the supply of the required water that contains alkali of boiling processed.

Paper pulp fabrication process of the present invention, the raw material of making paper pulp in the wherein said step 1) is wheat straw or reed or Chinese alpine rush or bamboo or timber, also comprises in the step 1) wheat straw after the cutting or reed or Chinese alpine rush or bamboo or timber is soaked in water or soaks 3-10 days processing; Described step 2) joining the vapor (steam) temperature that the alkali system feeds to boiling in is 105 ℃-150 ℃, steam pressure is 0.3MPa-0.5MPa, the steam feeding time is 4-6 hours, for utilizing pulp absorbing pump that pasty material is extracted in the conveying worm, the shove station of pasty material being sent into press master by conveying worm carries out shove again in the described step 4); The amount that adds water in the described step 4) in the Huang slurry is the water that the yellow slurry of 1 weight portion adds 15-30 weight portions; The time of in the described step 5) Huang slurry being carried out washing for the first time separating treatment is 3-5 minutes, and the black liquor of discharging is carried out secondary screen cloth filtration treatment; The amount that adds water in the described step 7) in the Huang slurry is the water that the yellow slurry of 1 weight portion adds 10-20 weight portions; The time of in the described step 8) Huang slurry being carried out washing for the second time separating treatment is 3-5 minutes, and the black liquor of discharging is carried out secondary screen cloth filtration treatment; The amount that adds water in the described step 10) in the Huang slurry is the water that the yellow slurry of 1 weight portion adds 8-15 weight portions; In the described step 11) Huang being starched the time of washing separating treatment for the third time is 3-5 minutes.

Paper pulp fabrication process of the present invention, wherein said step 1) is to step 16) in comprise by recycling the conveyor screw that flow process constitutes in following 5 purifications of waste water and replenish new water method:

1) the first waste water circulation process and the additional control coefrficient that makes water: air supply system required water every day is pressed 9-11 times of weight configurations of the paper pulp daily output, wherein boiler required softening peace and quiet water every day is supplied with by pipeline by the water system groundwater abstraction by 4-6 times of weight of the paper pulp daily output, boiler dust and waste gas filtering purify the every day water and limit the quantity of and supplied with by the clear water circulatory pool by 4-6 times of weight of the paper pulp daily output, and the additional water of the natural water loss of sedimentation and filtration ditch and clear water circulatory pool every day in cyclic process contains the alkali cistern by second and supplies with by pipeline;

2) the second waste water circulation process and alkali are recycled and the approach of replenishing and control coefrficient: the day water consumption that the alkali system is joined in boiling is controlled at 12 times of weight of the paper pulp daily output, wherein 11.5 times of weight contain the supply of alkali circulation cistern by first, and other is by additional supply of difference liquid caustic soda every day;

The same multiplying factor that shove is placed restrictions in the wet pulp amount with draining uses, making water contain alkali circulation cistern by first supplies with, after the black liquor of discharging imports the screen cloth filtration system filters after treatment by pipeline input concentrated black liquid precipitation and centrifugal separation system, import the cinder filtration system again and behind purification filtering, import the buck circulatory pool again and make the liquid caustic soda water of decoction system and replenish to supply with and use;

First Huang is washed and starched dilution stirring water every day of washing piece-rate system and can be limited the quantity of in 19-21 times of weight of the paper pulp daily output, mainly contains alkali circulation cistern by first and supplies with; Second Huang is washed and starched dilution stirring water every day of washing piece-rate system and can be limited the quantity of in 14-16 times of weight of the paper pulp daily output, contains alkali circulation cistern by first and supplies with 10 times of weight, and other contains alkali circulation cistern by second and supplies with; First, second Huang is washed and starched and is washed 40 times of weight that waste water that piece-rate system discharged every day is about the paper pulp daily output and be input to the first screen cloth filtration system by pipeline, import black liquor filtering and concentrating system after filtering again and after concentration, be input to the first cinder filtration system by pipeline again, purify after filtration the back directly input first contain in the alkali circulation cistern and recycle, residual alkali recycling use rate is 74-76% in the wastewater treatment cyclic process for this link, and other parts are replenished separately;

3) three wastes water circulation flow process and additional approach and limit coefficient of utilization: 10 times of weight supplies that water can be limited the quantity of and was controlled at the paper pulp daily output every day are stirred in the dilution in the 3rd washing piece-rate system, wherein second contains 3 times of weight that alkali circulation cistern is supplied with the paper pulp daily output, other 7 times of weight are supplied with by pipeline by peace and quiet water circulation tank, the 3rd Huang is washed and starched and washed the waste water that discharges every day in the piece-rate system is after 10 times of the paper pulp daily output are imported the second screen cloth filtration system filters by pipeline, after waste water is imported the filtration of the second cinder filtration system purification by pipeline, import second again and contain in the alkali circulation cistern, respectively second Huang is washed and starched the dilution stirring pool water of washing piece-rate system and the 3rd Huang and wash and starch the dilution stirring of washing in the piece-rate system and the supply of air supply system dust waste gas purification water thereof;

4) the 4th waste water circulation process and additional approach and limit coefficient of utilization: acid-base neutralization system dilution stirring water every day can be limited the quantity of and is controlled at 4-6 times of weight of the paper pulp daily output, supply with by peace and quiet water circulation tank, the acid-base neutralization system discharged every day in and water import the screening system of removing sand in the lump with pulp fibres, screening institute's every day of system water requirement of removing sand is limited the quantity of and is controlled at 20 times of the paper pulp daily output, every day, required output was supplied with by peace and quiet water circulation tank, the waste water that the screening system of removing sand is discharged every day is 20 times of weight of the paper pulp daily output, be input to useless slurry by pipeline and reclaim filtration system, waste water after filtering is again by pipeline input fine sand purification filtering system, does the 3rd Huang in the peace and quiet water circulation tank of input and wash and starch and wash the system water supply use of removing sand of piece-rate system and acid-base neutralization system and screening through purifying after;

5) the 5th waste water circulation process and additional approach and limit coefficient of utilization: fiber bleached system and the water consumption of copying every day in slurry system and the paper manufacturing systems, its watering can use the pond from peace and quiet water circulation and supply with, and differential section can be supplied with by water system.White slurry reclaims filtration system after filtering, and its waste water carries out purified treatment by pipeline input plain boiled water cleaning system again, and the peace and quiet water after purified treatment can be imported peace and quiet water circulation and use in the pond water source supply of doing bleaching system, copying slurry system, paper manufacturing systems.If the water in the peace and quiet water circulation use pond is after recycling for a long time, water quality may saturated phenomenon occur and water quality worn out influence then manufacturing paper with pulp during quality of product because of being rich in various microchemistry compositions, import in the chemical purifying system again by pipeline, progressively import in the purification water pool after the purified treatment through chemical mixing treatment pond, coagulating basin, settling tank, again additional supply by supplying bleaching, copy water in slurry system, the paper manufacturing systems in the pipeline input water system.

Paper pulp manufacturing system of the present invention, comprise water system, air supply system, be used to process the chaffcutter dust pelletizing system of paper making raw material, described water system links to each other with described air supply system by pipeline, air supply system is joined the alkali system by pipeline and boiling and is linked to each other, boiling join the alkali system by pipeline with spurt expanded system and link to each other, describedly spurt expanded system and remove the assorted firmly dilution stirring pool of iron-stone by pipeline and first and link to each other, first removes assorted firmly the dilution in the stirring pool of iron-stone is provided with agitator, first removes the assorted firmly dilution stirring pool of iron-stone washes and starches by the pipeline and first Huang and washs piece-rate system and link to each other, first Huang is washed and starched and is washed piece-rate system and remove the assorted firmly dilution stirring pool of iron-stone by pipeline and second respectively and link to each other with the first screen cloth filtration system, second removes assorted firmly the dilution in the stirring pool of iron-stone is provided with agitator, second removes the assorted firmly dilution stirring pool of iron-stone washes and starches by the pipeline and second Huang and washs piece-rate system and link to each other, second Huang is washed and starched and is washed piece-rate system and remove the assorted firmly dilution stirring pool of iron-stone by pipeline and the 3rd respectively and link to each other with the first screen cloth filtration system, the 3rd removes assorted firmly the dilution in the stirring pool of iron-stone is provided with agitator, the 3rd removes the assorted firmly dilution stirring pool of iron-stone washes and starches by pipeline and the 3rd Huang and washs piece-rate system and link to each other, the 3rd Huang is washed and starched and is washed piece-rate system and link to each other with the second screen cloth filtration system with the acid-base neutralization system by pipeline respectively, the acid-base neutralization system links to each other with described water system with the screening system of removing sand respectively by pipeline, the screening system of removing sand reclaims filtration system with fiber bleached system with useless slurry by pipeline respectively and described water system links to each other, fiber bleached system links to each other with described water system with copying slurry system and/or paper manufacturing systems and reclaim filtration system by pipeline and white slurry, copying slurry and/or paper manufacturing systems links to each other with white slurry recovery filtration system with described air supply system with described water system by pipeline, the described first screen cloth filtration system concentrates the centrifugation treatment system by the useless slurry of pipeline and recovery respectively and links to each other with black liquor filtering and concentrating system, reclaiming the concentrated centrifugation treatment system of useless slurry links to each other with black liquor filtering and concentrating system by pipeline, the centrifugation treatment system that concentrates the useless slurry of recovery reclaims the Huang slurry that gets off and delivers to the 3rd except that in the assorted firmly dilution stirring pool of iron-stone, black liquor filtering and concentrating system links to each other with the first cinder filtration system by pipeline, each concentrated black liquid coagulation tank of black liquor filtering and concentrating system reclaims the reprocessing system by conveying equipment and filtering material and/or black liquor lignin curing reprocessing system links to each other, the first cinder filtration system contains alkali circulation cistern by pipeline and first and links to each other, first contains alkali circulation cistern joins alkali system and/or described first by pipeline and described boiling respectively and removes the assorted firmly dilution stirring pool of iron-stone and/or described second and remove the assorted firmly dilution stirring pool of iron-stone and link to each other, the described second screen cloth filtration system links to each other with the second cinder filtration system by pipeline, the second cinder filtration system contains alkali circulation cistern by pipeline and second and links to each other, second contains alkali circulation cistern, and dilution stirring pool and/or the described the 3rd dilutes stirring pool except that iron-stone is assorted firmly and/or the clear water circulatory pool links to each other except that iron-stone is mixed firmly by pipeline and described second respectively, the clear water circulatory pool links to each other with described air supply system by pipeline, described useless slurry reclaims filtration system and links to each other with fine sand purification filtering system by pipeline, fine sand purification filtering system links to each other with peace and quiet water circulation tank by pipeline, peace and quiet water circulation tank is washed and starched by pipeline and described the 3rd Huang and is washed piece-rate system and/or described acid-base neutralization system and/or the described screening cycle chemistry cleaning treatment system that removes sand and link to each other, described white slurry reclaims filtration system and links to each other with fine sand purification filtering system by pipeline, fine sand purification filtering system uses the pond to link to each other with peace and quiet water circulation, peace and quiet water circulation uses the pond to link to each other with water system and/or chemical cleaning method treatment system by pipeline, and described useless slurry reclaims filtration system and links to each other with fiber bleached system by conveying equipment.Described white slurry filtering recovering system is by conveying equipment and reclaim white slurry treatment system and link to each other, reclaims to starch treatment system in vain and copy the slurry system or paper manufacturing systems links to each other with described.

Paper pulp manufacturing system of the present invention, the wherein said expanded system and described first of spurting removes on the pipeline that the assorted firmly dilution stirring pool of iron-stone links to each other and is connected with the shove system, the shove system links to each other with concentrated black liquid precipitation and centrifugal separation system by pipeline, concentrated black liquid precipitation and centrifugal separation system links to each other with the screen cloth filtration system by pipeline, the screen cloth filtration system links to each other with the cinder filtration system by pipeline, the cinder filtration system links to each other with the buck circulatory pool by pipeline, the buck circulatory pool is joined the alkali system by pipeline and described boiling and is linked to each other, and concentrated black liquid precipitation and centrifugal separation system reclaims reprocessing system with the screen cloth filtration system by conveying equipment and filtering material with the cinder filtration system and/or black liquor lignin curing reprocessing system links to each other.

Paper pulp manufacturing system of the present invention, wherein said first Huang is washed and starched and is washed piece-rate system and described second Huang and wash and starch and wash piece-rate system and described the 3rd Huang and wash and starch and wash piece-rate system and comprise respectively that Huang is washed and starched and wash seperator, Huang is washed and starched and is washed seperator and comprise frame, frame is provided with a plurality of horizontal washtubs, a plurality of horizontal washtubs are hierarchal arrangement from top to bottom, each horizontal washtub comprises that the cross section that the axis along continuous straight runs is provided with is circular staving, each staving can be provided with shaft rotationally along central axis, the shaft part that is positioned at staving on the shaft is provided with blade, shaft passes drive end bearing bracket from the front end of staving and stretches out staving, the external part of each shaft links to each other with the motor shaft transmission of motor, staving is fixed on the described frame, one end at the staving top of the top is provided with inlet, the bottom of the staving other end is provided with the liquid outlet that links to each other with the inlet of below woven hose, the liquid outlet of woven hose links to each other with the inlet at the staving top of the horizontal washtub that is positioned at its below, before utilizing woven hose between the staving of neighbouring horizontal washtub, what the back was staggered is connected, the bottom of the horizontal washtub of the below inlet at cylindrical shell top that utilizes woven hose and be positioned at the horizontal solid-liquid seperator of its below links to each other, be connected with the joint door on each woven hose, described cylindrical shell is fixed on the described frame, cylindrical shell can be provided with centrifugal shaft rotationally along central axis, the shaft part that is positioned at cylindrical shell on the centrifugal shaft is provided with conical cartridge filter, the roundlet mouth end of taper cartridge filter links to each other by the inlet of mozzle with described cylindrical shell top, the madial wall of taper cartridge filter is provided with helical blade around ground, on the described cylindrical shell madial wall below the big round mouth end of taper cartridge filter, be provided with the solid-liquid comparting plate, cylindrical shell bottom below solid-liquid comparting plate right-hand member is positioned at the taper cartridge filter is provided with leakage fluid dram, cylindrical shell bottom at solid-liquid comparting plate left end is provided with slag notch, described centrifugal shaft passes protecgulum from the front end of cylindrical shell and stretches out cylindrical shell, the external part of centrifugal shaft links to each other with the motor shaft transmission of described motor, the rear end of each described staving is respectively equipped with AD, on the madial wall of each described staving fixed blade is installed, the sidewall of each described staving is provided with inspection hatch, the rear end of described cylindrical shell is provided with access door, the sidewall of cylindrical shell is provided with the observation access panel, the taper cartridge filter comprises the centrifugal network neck bush, the outer surface of centrifugal network neck bush is coated with screen pack, the front end of described shaft adopts bearing and bearing block to be installed in the center of described drive end bearing bracket, the rear end of shaft adopts bearing and bearing block to be installed in the center of support, the outer end of support and the madial wall of described staving are fixedly linked, the front end of described centrifugal shaft adopts bearing and bearing block to be installed in the center of described protecgulum, the rear end of centrifugal shaft adopts bearing and bearing block to be installed in the center of after-poppet, the outer end of after-poppet and the madial wall of described cylindrical shell are fixedly linked, described blade comprises a plurality of radial bars, a plurality of radial bars are one group with 3-6, the inner end of every group of radial bars radially is fixedly linked with described shaft respectively, the outer end of every group of radial bars is connected with annular ring respectively, adopt a plurality of axial stem to link to each other between the annular ring of each group vertically, in each axial stem, be fixed with vane plate respectively on annular ring and the described radial bars, the vane plate of outmost turns and described fixed blade arranged in dislocation, the motor shaft of described motor adopts the band transmission to drag described centrifugal shaft, centrifugal shaft adopt the band transmission from bottom to top drag each described shaft, the plate face of described fixed blade and radially between angle be 25 °-35 °, the coning angle of described taper cartridge filter is 40 °-60 °, described horizontal washtub is arranged in 4 layers from top to bottom, and every layer has 2 horizontal washtubs.

Paper pulp manufacturing system of the present invention, wherein said first Huang is washed and starched the Huang of washing piece-rate system and is washed and starched the inlet at the staving top of the top of washing seperator and remove the assorted firmly dilution stirring pool of iron-stone by pipeline and described first and link to each other, first Huang is washed and starched the Huang of washing piece-rate system and is washed and starched the slag notch and described second of the horizontal solid-liquid seperator of washing seperator and remove the assorted firmly dilution stirring pool of iron-stone and link to each other, second removes the assorted firmly dilution stirring pool of iron-stone and described second Huang washes and starches the Huang of washing piece-rate system and washes and starches the inlet at the staving top of the top of washing seperator and link to each other, second Huang is washed and starched the Huang of washing piece-rate system and is washed and starched the slag notch and the described the 3rd of the horizontal solid-liquid seperator of washing seperator and remove the assorted firmly dilution stirring pool of iron-stone and link to each other, the 3rd removes the assorted firmly dilution stirring pool of iron-stone links to each other and washes and starches the Huang of washing piece-rate system with described the 3rd Huang and wash and starch the inlet at the staving top of the top of washing seperator and link to each other, and the 3rd Huang is washed and starched slag notch that the Huang of washing piece-rate system washes and starches the horizontal solid-liquid seperator of washing seperator and linked to each other with described acid-base neutralization system.

Paper pulp manufacturing system of the present invention, wherein said first screen cloth filtration system and the described second screen cloth filtration system and useless slurry recovery filtration system and white slurry reclaim the first filtration water channel that filtration system comprises that respectively along continuous straight runs sets up, first two sides of filtering the water channel top link to each other with the top of the first order screen pack that is obliquely installed respectively, the bottom of each first order screen pack links to each other with first inboard that collects stock tank that along continuous straight runs sets up respectively, the outside of two first collection stock tanks links to each other with second inboard of filtering water channel respectively, second top of filtering the water channel outside links to each other with the top of the second level screen pack that is obliquely installed respectively, the inboard of second sewage sump that set up with along continuous straight runs respectively the bottom of each second level screen pack links to each other, the outside of each second sewage sump links to each other with the filtration sewage farm, the below of each described first order screen pack and two described second level screen packs is respectively equipped with first collecting tank, each first collecting tank compiles the pond with the filtered water that is positioned at its outside respectively and links to each other, first of the described first screen cloth filtration system is filtered water channel and is washed and starched with described first Huang respectively by pipeline and wash piece-rate system and described second Huang and wash and starch the Huang of washing piece-rate system and wash and starch the leakage fluid dram of the horizontal solid-liquid seperator of washing seperator and link to each other, first of the second screen cloth filtration system is filtered water channel and is washed and starched the Huang of washing piece-rate system by pipeline and the 3rd Huang and wash and starch the leakage fluid dram of the horizontal solid-liquid seperator of washing seperator and link to each other, the first filtration water channel that useless slurry reclaims filtration system links to each other by the leakage fluid dram of pipeline with screening slagging-off impurity removed system, and first of white slurry recovery filtration system is filtered water channel by pipeline and fiber bleached system, copy the slurry system, the leakage fluid dram of paper manufacturing systems links to each other.

Paper pulp manufacturing system of the present invention, wherein said cinder filtration system and the described first cinder filtration system and the described second cinder filtration system comprise at least one cinder filtration pond respectively, each cinder filtration pond, bottom in the cinder filtration pond is equipped with the permeable layer that the thick particle diameter of 200mm-300mm is the cinder composition of 10mm-50mm, it is the filter course that the following cinder of 1.5mm is formed that the top of permeable layer is equipped with the thick particle diameter of 600mm-1600mm, the top of filter course is equipped with the adsorption layer that the thick particle diameter of 200mm-400mm is the cinder composition of 10mm-20mm, the top of adsorption layer is equipped with cinder pond filter cloth, bottom in the cinder filtration pond is provided with water leg, and the top of described cinder pond filter cloth is provided with a plurality of automatic atomizer that links to each other with water inlet pipe.

Paper pulp manufacturing system of the present invention, the wherein said first cinder filtration system comprises 4-8 cinder filtration ponds, the water of input is handled in 4-8 cinder filtration ponds by the pipeline cascade filtration, the water of 4-8 cinder filtration pond filtration treatment is transported to described first by pipeline and contains alkali circulation cistern, the described second cinder filtration system comprises 3-6 cinder filtration ponds, the water of input is handled in 3-6 cinder filtration ponds by the pipeline cascade filtration, the water of 3-6 cinder filtration pond filtration treatment is transported to described second by pipeline and contains alkali circulation cistern, and the cinder in the described cinder filtration pond reclaims the reprocessing system by induction system and filtering material and/or black liquor lignin curing reprocessing system links to each other.

Paper pulp manufacturing system of the present invention, wherein said fine sand purification filtering system and described fine sand purification filtering system comprise at least one fine sand filtering ponds, bottom in each fine sand filtering ponds is equipped with the rough sand stone layer that the thick particle diameter of 100mm-200mm is the grains of sand composition of 10mm-20mm, it is the filter course that the following grains of sand of 1.5mm are formed that the top of rough sand stone layer is equipped with the thick particle diameter of 500mm-700mm, the top of filter course is equipped with fine sand pond filter cloth, bottom in the fine sand filtering ponds is provided with catchment tray, and the top of described fine sand pond filter cloth is provided with a plurality of automatic atomizer that links to each other with water inlet pipe.

Paper pulp manufacturing system of the present invention, wherein said chemical cleaning method treatment system comprises the chemical cleaning method treatment pond, the liquid outlet of described peace and quiet water circulation tank uses the liquid outlet in pond to link to each other by the inlet of pipeline with the chemical cleaning method treatment pond respectively with described peace and quiet water circulation, the liquid outlet of chemical cleaning method treatment pond links to each other with the inlet of coagulating basin and standby pool respectively, the liquid outlet of coagulating basin links to each other with the inlet of settling tank, the liquid outlet of settling tank and described standby pool links to each other with the inlet of clear water clarifier-tank, the liquid outlet of clear water clarifier-tank links to each other with described water system, standby pool links to each other by the liquid outlet of pipeline with clear water circulation regulating reservoir, one side of clear water circulation regulating reservoir is provided with sediment waste and accumulates the pond, sediment waste accumulate the pond by transport respectively with, the inlet of clear water circulation regulating reservoir links to each other with the delivery port of production fault accommodation pipeline, the liquid outlet of clear water circulation regulating reservoir is regularly replaced the ecological garden of gardening with sediment filtration system and circulation clear water respectively and is linked to each other with the crawl system, the inlet of clear water circulation regulating reservoir links to each other with the delivery port of production fault accommodation pipeline, one side of described sediment filtration system is provided with waste treatment system, and waste treatment system reclaims the reprocessing system by conveying equipment and filtering material and/or black liquor lignin curing reprocessing system links to each other.

Compare with existing paper pulp fabrication process and system, advantage of the present invention and good effect are: because it adopts distinctive processing step of the present invention and special equipment, in the process of producing the paper pulp paper product, the sewage that a plurality of operations are produced directly returns after treatment and is used in other operations, thereby greatly reduced the sewage water yield of required processing, saved water consumption, reduced cost of sewage disposal, for the waste material that in sewage disposal process, is produced, also done comprehensive utilization, the complete compliance with environmental protection requirements of its treatment process.Adopt special equipment of the present invention, can dispose sewage expeditiously, make it satisfy environmental requirement.Owing to can accomplish zero-emission, so environment is not polluted, when can make the up to standard or zero-emission of sewage discharge and saving energy and reduce the cost, product yield is raising synchronously also

Water internal circulation system of the present invention, when in scope separately, implementing independent loops and purify, recycle by the characteristics of each link institute draining matter, can replenish new water 20%-25% as required, supply water by characteristics selection approach separately, guaranteed the homeostasis of circulation in the water supply and sewage on the one hand, also avoided water various trace elements in the process that recycles every day to assemble saturated on the other hand, cause the water quality hardening or be rich in chemical analysis and too much reduce the result of use of producing each link, and the possibility that finally causes product quality to descend.

Part in the additional water system of the present invention is to the water supply line and the parallel connection of supply pump water station of the strict especially link of water quality requirement, and purpose is to prevent the workman in the production operation process, may cause unpredictalbe such and such accident.If in case the accident of Unpredictability occurs, the excess waste that is caused recycles because of can't additionally circulating in the saturated short time, can enter in a plurality of peace and quiet water circulation regulating reservoirs and regulate use, in enterprise with good conditionsi, can establish the ecological garden of gardening, water to regulating reservoir can regularly be shunted displacement, does not have the enterprise of condition can directly regulate use.

Be described in further detail below in conjunction with the specific embodiment of accompanying drawing paper pulp fabrication process of the present invention and system.

Fig. 1 is the schematic diagram of paper pulp manufacturing system of the present invention;

The Huang that Fig. 2 uses for paper-making pulping of the present invention is washed and starched the stereogram of the structural representation of washing seperator;

Fig. 3 is the front view of the horizontal washtub among Fig. 1;

Fig. 4 is A-A cross-sectional view of Fig. 3;

Fig. 5 is B-B cross-sectional view of Fig. 3;

Fig. 6 is the front view of the horizontal solid-liquid seperator among Fig. 2;

Fig. 7 is C-C cross-sectional view of Fig. 6;

Fig. 8 is D-D cross-sectional view of Fig. 6;

Fig. 9 is the structural representation of the first screen cloth filtration system and the second screen cloth filtration system;

Figure 10 is the profile in cinder filtration pond;

Figure 11 is the profile of fine sand filtering ponds.

The specific embodiment

Referring to Fig. 1, paper pulp manufacturing system technology of the present invention, it comprises the steps:

1) raw material that will be used to make paper pulp according to prior art cut, dust removal process; The raw material of making paper pulp is wheat straw or reed or Chinese alpine rush or bamboo or timber, where necessary, wheat straw after the cutting or reed or Chinese alpine rush or bamboo or timber can also be soaked in water or soak 3-10 days processing, make the tissue of wheat straw or reed or Chinese alpine rush or bamboo or timber degrade, so that isolate fiber wherein;

For the raw material that will be used for paper-making pulping cooking, under the limited condition of platform amount and place of former chaffcutter, platform amount as if the model that can strengthen loom and power or increase loom is best, if be subjected to conditionality, can select small-sized movably a plurality of chaffcutter to replenish chaffcutter, increasing chaffcutter amount is established in addition and is specialized in transfer line, can improve dress ball speed, shortens the dress ball time, in this link, or in stock yard, directly raw material is shredded, after adding water atomization and soaking, accumulation is closed, after 3-10 days processing, raw material inside produces a large amount of moistures because of injecting moisture content, and this moisture is because of being in free convection supercharging under the closed state, produce certain thermal energy, gelatinous substance in the raw material epidermis and tissue are effectively decomposed, thereby the compression dress ball time, also shortened digestion time and air feed and alkali consumption.

2) will cut, the raw material after the dedusting carries out the boiling processed according to the water that the prior art utilization contains alkali, raw material is steamed into yellow slurry, the waste water that wherein production steam course produces is through after the precipitation process, be transported in the clear water circulatory pool, what be used for removing the dust that air supply system produced at gas making process burner hearth and be used for the waste gas purification processing links spurts recycling of atomized water again; The concrete grammar of boiling processed can be to be that 2300 or 2400 or 2500 or 2600 or 2700 raw material joins in the rotary spherical digester with weight portion, the weight portion that will be dissolved with the caustic soda of weight portion 310 or 320 or 330 again is that 8000 or 9000 or 10000 or 11000 or 12000 water joins in the rotary spherical digester, feed the steam that produces by steam boiler to rotary spherical digester then, the vapor (steam) temperature that feeds to rotary spherical digester is 105 ℃ or 110 ℃ or 115 ℃ or 120 ℃ or 125 ℃ or 130 ℃ or 135 ℃ or 140 ℃ or 145 ℃ or 150 ℃, steam pressure is 0.3MPa or 0.35MPa or 0.4MPa or 0.45MPa or 0.5MPa, and the steam feeding time is 4 hours or 5 hours or 6 hours; Be steamed into pasty material until the raw material that will be used to make paper pulp; Or be that 2350 or 2450 or 2140 or 2650 or 2690 raw material joins in the rotary spherical digester with weight portion, the weight portion that will be dissolved with the caustic soda of weight portion 315 or 325 or 328 again is that 8500 or 9500 or 10500 or 11500 or 12000 water joins in the rotary spherical digester, feed the steam that produces by steam boiler to rotary spherical digester then, the vapor (steam) temperature that feeds to rotary spherical digester is 102 ℃ or 112 ℃ or 116 ℃ or 126 ℃ or 128 ℃ or 132 ℃ or 135 ℃ or 142 ℃ or 147 ℃ or 150 ℃, steam pressure is 0.3MPa or 0.36MPa or 0.41MPa or 0.46MPa or 0.5MPa, and the steam feeding time is 4.5 hours or 5.5 hours or 6 hours; Be steamed into pasty material until the raw material that will be used to make paper pulp;

3) the Huang slurry is spurted expanding treatment according to prior art;

If enterprise has purchased a large amount of press master equipment, can Huang slurry is added water carry out first time agitator treating and precipitation process before it is carried out the shove processing according to prior art, after the water that the shove processing is discharged carries out the processing of concentrated black liquid precipitation and centrifugal separation, again the water of discharging being carried out the screen cloth filtration, purification handles, and then the water of discharging carried out the cinder filtration PROCESS FOR TREATMENT, the water that contains alkali that the cinder filtration PROCESS FOR TREATMENT is discharged stores in the buck circulatory pool, that comes out in the buck circulatory pool contains buck through the chemical examination alkalinity with calculate the weight after part, is used for step 2) the replenishing the supply of the required water that contains alkali of boiling processed.The specific practice that shove is handled is with pulp absorbing pump pasty material to be extracted in the conveying worm, again the shove station of pasty material being sent into press master by conveying worm carry out shove, spray add water, again shove, spray obtains yellow slurry after adding 4 times of water or 3 times or 5 times or 6 times or 8 circulations again;

If enterprise does not have press master equipment, can directly carry out following processing step.

4) Huang that step 3) obtained slurry adds water and carries out agitator treating and precipitation process first time, and the amount that adds water in the Huang slurry is the yellow water that adds 15-30 weight portions of starching of 1 weight portion, removes foreign material such as wherein iron, stone, sand; Huang slurry is added water carry out for the first time that the time of agitator treating and precipitation process is 3-5 minutes;

5) the Huang slurry that step 4) is obtained carries out washing the first time separating treatment, the time of Huang slurry being carried out washing for the first time separating treatment is 3-5 minutes, removes impurity wherein, and black liquor is separated from the Huang slurry, obtain pulp fibres, and the black liquor of discharging is carried out secondary screen cloth filtration treatment;

7) pulp fibres that the screen cloth filtration treatment in step 5) and the step 6) is obtained adds water and carries out agitator treating and the precipitation process second time, and the amount that adds water in the Huang slurry is the water that the yellow slurry of 1 weight portion adds 10-20 weight portions, removes foreign material such as wherein iron, stone, sand; Huang slurry is added water carry out for the second time that the time of agitator treating and precipitation process is 3-5 minutes;

8) the water slurry fiber that adds that step 7) is obtained carries out washing the second time separating treatment, the time of Huang slurry being carried out washing for the second time separating treatment is 3-5 minutes, remove impurity wherein, black liquor is separated from pulp fibres, obtain pulp fibres, and the black liquor of discharging is carried out secondary screen cloth filtration treatment;

10) pulp fibres that step 9) is obtained adds water and carries out agitator treating and precipitation process for the third time, and the amount that adds water in the Huang slurry is the water that the yellow slurry of 1 weight portion adds 8-15 weight portions, removes foreign material such as wherein iron, stone, sand; Huang slurry is added water carry out for the third time that the time of agitator treating and precipitation process is 3-5 minutes;

11) the water slurry fiber that adds that step 10) is obtained washs separating treatment for the third time, removes impurity wherein, and black liquor is separated from pulp fibres, obtains pulp fibres, and the black liquor of discharging is carried out the screen cloth filtration treatment; The time of the Huang slurry being washed for the third time separating treatment is 3-5 minutes.

16) pulp fibres that step 15) is obtained is copied slurry or papermaking according to prior art, carry out after white slurry filtered and recycled handles for copying slurry or waste water that papermaking produced, carrying out the fine sand purification filtering again handles, use the pond to be delivered to water system by peace and quiet water circulation again, perhaps it is carried out being used further to be delivered to water system after chemical cleaning method is handled.If this copies the slurry water through circulation for a long time, water quality is aging, muddy, when slurry, the flushing of papermaking screen cloth are copied in influence, water can be introduced and carry out the chemical cleaning method processing in the chemical purifying system.

Above-mentioned steps 1) to step 16) in comprise by recycling the conveyor screw that flow process constitutes in following 5 purifications of waste water and replenish new water method, and waste water emergency processing circulation technology:

1) the first waste water circulation process and the additional control coefrficient that makes water: air supply system required water every day is pressed 9-11 times of weight configurations of the paper pulp daily output, wherein boiler required softening peace and quiet water every day is supplied with by pipeline by the water system groundwater abstraction by 4-6 times of weight of the paper pulp daily output, boiler dust and waste gas filtering purify the every day water and limit the quantity of and supplied with by the clear water circulatory pool by 4-6 times of the paper pulp dailys output, and the additional water of the natural water loss of sedimentation and filtration ditch and clear water circulatory pool every day in cyclic process contains the alkali cistern by second and supplies with by pipeline;

2) the second waste water circulation process and alkali are recycled and the approach of replenishing and control coefrficient: the day water consumption that the alkali system is joined in boiling is controlled at 12 times of weight of the paper pulp daily output, wherein 11.5 times of weight contain the supply of alkali circulation cistern by first, and other is by additional supply of difference liquid caustic soda every day.

The same multiplying factor that shove is placed restrictions in the wet pulp amount with draining uses, making water contain alkali circulation cistern by first supplies with, after the black liquor of discharging imports the screen cloth filtration system filters after treatment by pipeline input concentrated black liquid precipitation and centrifugal separation system, import the cinder filtration system again and import the additional supply use of liquid caustic soda water that the buck circulatory pool is made decoction system again behind purification filtering, refuse utilizes separately.

5) the 5th waste water circulation process and additional approach and limit coefficient of utilization: fiber bleached system and copy water consumption in slurry system and the paper manufacturing systems, watering can use the pond from peace and quiet water circulation and supply with every day its, and differential section can be supplied with by water system.White slurry reclaims filtration system after filtering, and its waste water carries out purified treatment by pipeline input plain boiled water cleaning system again.Peace and quiet water after purified treatment can be imported peace and quiet water circulation and use in the pond water source supply of doing bleaching system, copying slurry system, paper manufacturing systems.If the water in the peace and quiet water circulation use pond is after recycling for a long time, water quality may saturated phenomenon occur and water quality worn out influence then manufacturing paper with pulp during quality of product because of being rich in various microchemistry compositions, can import in the chemical purifying system again by pipeline, progressively import in the purification water pool after the purified treatment through chemical mixing treatment pond, coagulating basin, settling tank, again additional supply by supplying bleaching, copy water in slurry, each system of papermaking in the pipeline input water system.

Waste water emergency processing circulation technology: in whole production operation and pollution treatment running, unpredictalbe manual operation accident may appear, machinery and facility fault, the evaporating, emitting, dripping or leaking of liquid or gas that the natural weather mutability causes and the excess load excess waste water that exceeds standard are when operation method is uncontrollable routinely, can be by in pipeline or the unified input of the charge for remittance canal clear water circulation regulating reservoir, visual its contaminated wastewater degree, or directly precipitate purified treatment, or carry out purified treatment set by step, or import the first cinder filtration system and/or the second cinder filtration system and/or sedimentation and filtration ditch and carry out purified treatment and get final product by pipeline input chemical cleaning method treatment system.If directly precipitate purified treatment and/or chemical purifying system purified treatment in clear water circulation regulating reservoir after, the input water system is used and/or is input to the circulation clear water by pipeline and regularly replaces ecological garden of gardening and crawl system; Recycle in the process at waste water, each system screw shape amount of makeup water is 25%, to prevent water matter burn-in effects production product quality.

As shown in Figure 1, paper pulp manufacturing system of the present invention, comprise water system, air supply system, be used to process the chaffcutter dust pelletizing system of paper making raw material, described water system links to each other with described air supply system by pipeline, air supply system is joined the alkali system by pipeline and boiling and is linked to each other, boiling join the alkali system by pipeline with spurt expanded system and link to each other, spurting expanded system removes the assorted firmly dilution stirring pool of iron-stone by pipeline and first and links to each other, first removes assorted firmly the dilution in the stirring pool of iron-stone is provided with agitator, first removes the assorted firmly dilution stirring pool of iron-stone washes and starches by the pipeline and first Huang and washs piece-rate system and link to each other, first Huang is washed and starched and is washed piece-rate system and remove the assorted firmly dilution stirring pool of iron-stone by pipeline and second respectively and link to each other with the first screen cloth filtration system, second removes assorted firmly the dilution in the stirring pool of iron-stone is provided with agitator, second removes the assorted firmly dilution stirring pool of iron-stone washes and starches by the pipeline and second Huang and washs piece-rate system and link to each other, second Huang is washed and starched and is washed piece-rate system and remove the assorted firmly dilution stirring pool of iron-stone by pipeline and the 3rd respectively and link to each other with the first screen cloth filtration system, the 3rd removes assorted firmly the dilution in the stirring pool of iron-stone is provided with agitator, the 3rd removes the assorted firmly dilution stirring pool of iron-stone washes and starches by pipeline and the 3rd Huang and washs piece-rate system and link to each other, the 3rd Huang is washed and starched and is washed piece-rate system and link to each other with the second screen cloth filtration system with the acid-base neutralization system by pipeline respectively, the acid-base neutralization system links to each other with described water system with the screening system of removing sand respectively by pipeline, the screening system of removing sand reclaims filtration system with fiber bleached system with useless slurry by pipeline respectively and described water system links to each other, fiber bleached system links to each other with described water system with copying slurry system and/or paper manufacturing systems and reclaim filtration system by pipeline and white slurry, copying slurry and/or paper manufacturing systems links to each other with white slurry recovery filtration system with described air supply system with described water system by pipeline, the described first screen cloth filtration system concentrates the centrifugation treatment system by the useless slurry of pipeline and recovery respectively and links to each other with black liquor filtering and concentrating system, reclaiming the concentrated centrifugation treatment system of useless slurry links to each other with black liquor filtering and concentrating system by pipeline, the centrifugation treatment system that concentrates the useless slurry of recovery reclaims the Huang slurry that gets off and delivers to the 3rd except that in the assorted firmly dilution stirring pool of iron-stone, black liquor filtering and concentrating system links to each other with the first cinder filtration system by pipeline, each concentrated black liquid coagulation tank of black liquor filtering and concentrating system reclaims the reprocessing system by conveying equipment and filtering material and/or black liquor lignin curing reprocessing system links to each other, the first cinder filtration system contains alkali circulation cistern by pipeline and first and links to each other, first contains alkali circulation cistern joins alkali system and/or described first by pipeline and described boiling respectively and removes the assorted firmly dilution stirring pool of iron-stone and/or described second and remove the assorted firmly dilution stirring pool of iron-stone and link to each other, the described second screen cloth filtration system links to each other with the second cinder filtration system by pipeline, the second cinder filtration system contains alkali circulation cistern by pipeline and second and links to each other, second contains alkali circulation cistern, and dilution stirring pool and/or the described the 3rd dilutes stirring pool except that iron-stone is assorted firmly and/or the clear water circulatory pool links to each other except that iron-stone is mixed firmly by pipeline and described second respectively, the clear water circulatory pool links to each other with described air supply system by pipeline, described useless slurry reclaims filtration system and links to each other with fine sand purification filtering system by pipeline, fine sand purification filtering system links to each other with peace and quiet water circulation tank by pipeline, peace and quiet water circulation tank is washed and starched by pipeline and described the 3rd Huang and is washed remove sand system and/or chemical cleaning method treatment system of piece-rate system and/or described acid-base neutralization system and/or described screening and link to each other, described white slurry reclaims filtration system and links to each other with fine sand purification filtering system by pipeline, fine sand purification filtering system uses the pond to link to each other with peace and quiet water circulation, peace and quiet water circulation uses the pond to link to each other with water system and/or chemical cleaning method treatment system by pipeline, and described useless slurry reclaims filtration system and links to each other with fiber bleached system by conveying equipment.Described white slurry filtering recovering system is by conveying equipment and reclaim white slurry treatment system and link to each other, reclaims to starch treatment system in vain and copy the slurry system or paper manufacturing systems links to each other with described.

Above-mentioned first removes the assorted firmly dilution stirring pool of iron-stone, second removes the assorted firmly dilution stirring pool of iron-stone and the 3rd except that the agitator in the assorted firmly dilution stirring pool of iron-stone, and the agitator of being installed in acid-base neutralization pond and the chemical mixing treatment pond, their project organization can be same existing product, its agitator can comprise the agitator fixed frame, the central stirring shaft of installing on the fixed frame, the diameter of axle one end of central stirring shaft welds two words or the parallel puddler of three fonts, every layer is welded 2 on the puddler, 4,6,8 stirring vanes, motor is fixed on the frame of agitator.Central shaft links to each other with motor by driving belt, and by dragging of motor the related fluid thing is carried out stir process.

The above-mentioned expanded system and first of spurting removes on the pipeline that the assorted firmly dilution stirring pool of iron-stone links to each other and is connected with the shove system, the shove system links to each other with concentrated black liquid precipitation and centrifugal separation system by pipeline, concentrated black liquid precipitation and centrifugal separation system links to each other with the screen cloth filtration system by pipeline, the screen cloth filtration system links to each other with the cinder filtration system by pipeline, the cinder filtration system links to each other with the buck circulatory pool by pipeline, the buck circulatory pool is joined the alkali system by pipeline and described boiling and is linked to each other, and concentrated black liquid precipitation and centrifugal separation system reclaims reprocessing system with the screen cloth filtration system by conveying equipment and filtering material with the cinder filtration system and/or black liquor lignin curing reprocessing system links to each other.The black liquor lignin solidifies the reprocessing system can carry out deep processing to the black liquor lignin, or is processed into charcoal, or is processed into cement additire, or fertilizer and other preparation all can.

As shown in Figure 2, the Huang that paper-making pulping of the present invention is used is washed and starched and is washed seperator, comprises frame 1, and frame 1 is provided with a plurality of horizontal washtubs 2, and a plurality of horizontal washtubs 2 hierarchal arrangement from top to bottom become 4 layers, and every layer has 2 horizontal washtubs 2.

As Fig. 3, Fig. 4 and shown in Figure 5, each horizontal washtub 2 comprises that the cross section that the axis along continuous straight runs is provided with is circular staving 6, each staving 6 can be provided with shaft 9 rotationally along central axis, the shaft part that is positioned at staving 6 on the shaft 9 is provided with blade 32, when blade 32 rotates, promptly can carry out agitator treating to the slurry of the Huang in the staving 6 under the drive of shaft 9.Shaft 9 passes drive end bearing bracket 10 from the front end of staving 6 and stretches out staving 6, staving 6 is fixed on the frame 1, one end at staving 6 tops of the top is provided with inlet, be used to import yellow slurry, the bottom of staving 6 other ends is provided with the liquid outlet that links to each other with the inlet of below woven hose 3, be used to export agitator treating and cross once Huang slurry, the liquid outlet of woven hose 3 links to each other with the inlet at staving 6 tops of the horizontal washtub 2 that is positioned at its below, being used to import Huang starches and carries out second time washing in the staving 6 of below, before utilizing woven hose 3 between the staving 6 of neighbouring horizontal washtub 2, what the back was staggered is connected, so that the Huang slurry that enters in the staving 6 can be stirred, after the washing, enter in the next staving 6 from liquid outlet, as shown in Figure 1, the inlet at cylindrical shell 8 tops of the horizontal solid-liquid seperator 4 below the bottom of the horizontal washtub 2 below utilizes woven hose 3 and is positioned at it links to each other, be connected with the joint door on above-mentioned each woven hose 3, be used for regulating the flow of each staving 6 yellow slurry, cylindrical shell 8 is fixed on the frame 1.

As Fig. 6, Fig. 7 and shown in Figure 8, can be provided with centrifugal shaft 11 rotationally along central axis in the cylindrical shell 8 of horizontal solid-liquid seperator 4, the shaft part that is positioned at cylindrical shell 8 on the centrifugal shaft 11 is equipped with conical cartridge filter 12, the roundlet mouth end of taper cartridge filter 12 links to each other with the inlet at cylindrical shell 8 tops by mozzle 13, mozzle 13 is used for the process that the inlet at cylindrical shell 8 tops is come in is stirred, the Huang slurry of washing is introduced the roundlet mouth end of the taper cartridge filter 12 that is rotating, the coning angle of taper cartridge filter 12 is 40 °-60 °, the madial wall of taper cartridge filter 12 is provided with helical blade 19 around ground, enter the Huang slurry of the roundlet mouth end of taper cartridge filter 12, the effect of the taper cartridge filter 12 that is being rotated, can produce centrifugal motion, liquid in the yellow slurry can flow out from the sidewall of taper cartridge filter 12, solid constituent in the yellow slurry can move to along the helical blade 19 of taper cartridge filter 12 madial walls taper cartridge filter 12 big round mouth end, on cylindrical shell 8 madial walls below the big round mouth end of taper cartridge filter 12, be provided with solid-liquid comparting plate 31, cylindrical shell 8 bottoms below solid-liquid comparting plate 31 right-hand members are positioned at taper cartridge filter 12 are provided with leakage fluid dram 14, the liquid that is filtered out in the yellow slurry can flow out from leakage fluid dram 14, cylindrical shell 8 bottoms at solid-liquid comparting plate 31 left ends are provided with slag notch 15, and the solid constituent in the yellow slurry can be discharged from slag notch 15.Centrifugal shaft 11 passes protecgulum 24 from the front end of cylindrical shell 8 and stretches out cylindrical shell 8, and the motor shaft of motor 5 adopts the band transmission to drag centrifugal shaft 11, centrifugal shaft 11 adopt the band transmissions from bottom to top drag each shaft 9.

As Fig. 3, Fig. 4 and shown in Figure 5, the rear end of each staving 6 is respectively equipped with AD 16, with convenient each parts in the staving 6 are overhauled replacing, fixed blade 17 is installed on the madial wall of each staving 6, the plate face of fixed blade 17 and radially between angle be 25 °-35 °, installing and fixing blade 17 on the madial wall of staving 6 can increase stirring, clean result, and the sidewall of each staving 6 is provided with inspection hatch 18, with convenient situation in the staving 6 is observed.The front end of shaft 9 adopts bearing and bearing block to be installed in the center of drive end bearing bracket 10, and the rear end of shaft 9 adopts bearing and bearing block to be installed in the center of support 25, and the madial wall of the outer end of support 25 and staving 6 is fixedly linked.

As Fig. 6, Fig. 7 and shown in Figure 8, be provided with access door 20 in the rear end of cylindrical shell 8, with convenient each parts in the cylindrical shell 8 are overhauled replacing, the sidewall of cylindrical shell 8 is provided with observes access panel 21, with convenient situation in the cylindrical shell 8 is observed.Taper cartridge filter 12 comprises centrifugal network neck bush 22, and the outer surface of centrifugal network neck bush 22 is coated with screen pack 23.The front end of centrifugal shaft 11 adopts bearing and bearing block to be installed in the center of protecgulum 24, and the rear end of centrifugal shaft 11 adopts bearing and bearing block to be installed in the center of after-poppet 26, and the madial wall of the outer end of after-poppet 26 and cylindrical shell 8 is fixedly linked.

The Huang that paper-making pulping of the present invention is used is washed and starched the blade 32 of washing seperator and is comprised a plurality of radial bars 27, a plurality of radial bars 27 are one group with 3-6, the inner end of every group of radial bars 27 radially is fixedly linked with shaft 9 respectively, the outer end of every group of radial bars 27 is connected with annular ring 28 respectively, adopt a plurality of axial stem 29 to link to each other between the annular ring 28 of each group vertically, on each axial stem 29, annular ring 28 and radial bars 27, be fixed with vane plate 30 respectively, the vane plate 30 and fixed blade 17 arranged in dislocation of outmost turns.

It also can be to be arranged in 3 layers or 5 layers or 6 layers from top to bottom that the Huang that paper-making pulping of the present invention is used is washed and starched the horizontal washtub 2 of washing seperator, and every layer has 1 or 3 horizontal washtubs 2.

The Huang that paper-making pulping of the present invention is used is washed and starched and is washed seperator in use, the Huang slurry suction that can utilize pulp absorbing pump to make to produce in the pulping process is positioned at two stavings 6 of frame 1 top, and flow to successively from top to bottom in other the staving 6, starter motor 5 drags each shaft 9 simultaneously, make each shaft 9 rotation at a high speed, each shaft 9 of rotation can drive blade 32 rotations at a high speed, and blade 32 drives the Huang slurry rotation thereupon in the staving 6 again, and it is washed.The Huang slurry that was washed can be introduced in the taper cartridge filter 12 in the cylindrical shell 8 that flows to horizontal solid-liquid seperator 4, discharges from slag notch 15 through the dehydration back.

Above-mentioned first Huang is washed and starched the Huang of washing piece-rate system and is washed and starched the inlet at staving 6 tops of the top of washing seperator and remove the assorted firmly dilution stirring pool of iron-stone by pipeline and described first and link to each other, first Huang is washed and starched the Huang of washing piece-rate system and is washed and starched the slag notch 15 and described second of the horizontal solid-liquid seperator 4 of washing seperator and remove the assorted firmly dilution stirring pool of iron-stone and link to each other, second removes the assorted firmly dilution stirring pool of iron-stone and second Huang washes and starches the Huang of washing piece-rate system and washes and starches the inlet at staving 6 tops of the top of washing seperator and link to each other, second Huang is washed and starched the Huang of washing piece-rate system and is washed and starched the slag notch 15 and the 3rd of the horizontal solid-liquid seperator 4 of washing seperator and remove the assorted firmly dilution stirring pool of iron-stone and link to each other, the 3rd removes the assorted firmly dilution stirring pool of iron-stone links to each other and washes and starches the Huang of washing piece-rate system with the 3rd Huang and wash and starch the inlet at staving 6 tops of the top of washing seperator and link to each other, and the 3rd Huang is washed and starched the Huang of washing piece-rate system and washed and starched the slag notch 15 of the horizontal solid-liquid seperator 4 of washing seperator and link to each other with the acid-base neutralization system.

As shown in Figure 9, the first screen cloth filtration system and the second screen cloth filtration system and useless slurry recovery filtration system and white slurry reclaim the first filtration water channel 33 that filtration system comprises that respectively along continuous straight runs sets up, first two sides of filtering water channel 33 tops link to each other with the top of the first order screen pack 34 that is obliquely installed respectively, the angle that is obliquely installed is between 40 °-65 °, the bottom of two first order screen packs 34 links to each other with first inboard that collects stock tank 35 that along continuous straight runs sets up respectively, the outside of two first collection stock tanks 35 links to each other with second inboard of filtering water channel 41 respectively, second top of filtering water channel 41 outsides links to each other with the top of the second level screen pack 36 that is obliquely installed respectively, the angle that is obliquely installed is between 40 °-65 °, the inboard of second sewage sump 37 that set up with along continuous straight runs respectively the bottom of two second level screen packs 36 links to each other, the outside of two second sewage sumps 37 links to each other with filtration sewage farm 38, the below of two first order screen packs 34 and two second level screen packs 36 is respectively equipped with first collecting tank 40, each first collecting tank 40 compiles pond 56 with the filtered water that is positioned at its outside respectively and links to each other, first of the first screen cloth filtration system is filtered water channel 33 and is washed and starched with described first Huang respectively by pipeline and wash piece-rate system and second Huang and wash and starch the Huang of washing piece-rate system and wash and starch the leakage fluid dram 14 of the horizontal solid-liquid seperator 4 of washing seperator and link to each other, first of the second screen cloth filtration system is filtered water channel 33 and is washed and starched the Huang of washing piece-rate system by pipeline and the 3rd Huang and wash and starch the leakage fluid dram of the horizontal solid-liquid seperator of washing seperator and link to each other, the first filtration water channel that useless slurry reclaims filtration system links to each other by the leakage fluid dram of pipeline with screening slagging-off impurity removed system, and first of white slurry recovery filtration system is filtered water channel by pipeline and fiber bleached system, copy the slurry system, the leakage fluid dram of paper manufacturing systems links to each other.

The first screen cloth filtration system and the second screen cloth filtration system and useless slurry reclaim filtration system and white slurry reclaims filtration system in use, the water that needs to handle is entered by the first filtration water channel 33, stay the raw material that can utilize through first

order screen pack

34 and 36 filtrations of second level screen pack, waste water then compiles pond 56 through first collecting tank 40, filtered water and is discharged from.

As shown in figure 10, the cinder filtration system and the first cinder filtration system and the second cinder filtration system comprise at least one cinder filtration pond 42 respectively, each cinder filtration pond 42, bottom in the cinder filtration pond 42 is equipped with the permeable layer 47 that the thick particle diameter of 200mm-300mm is the cinder composition of 10mm-50mm, it is the filter course 48 that the following cinder of 1.5mm is formed that the top of permeable layer 47 is equipped with the thick particle diameter of 600mm-1600mm, the top of filter course 48 is equipped with the adsorption layer 49 that the thick particle diameter of 200mm-400mm is the cinder composition of 10mm-20mm, the top of adsorption layer 49 is equipped with cinder pond filter cloth 44, bottom in the cinder filtration pond 42 is provided with water leg 45, and the top of cinder pond filter cloth 44 is provided with a plurality of automatic atomizer 43 that links to each other with water inlet pipe 46.

The above-mentioned first cinder filtration system comprises 4-8 cinder filtration ponds 42, the water of input is handled in 4-8 cinder filtration ponds 42 by the pipeline cascade filtration, the water of 4-8 cinder filtration pond 42 filtration treatment is transported to first by pipeline and contains alkali circulation cistern, the above-mentioned second cinder filtration system comprises 3-6 cinder filtration ponds 42, the water of input is handled in 3-6 cinder filtration ponds 42 by the pipeline cascade filtration, the water of 3-6 cinder filtration pond 42 filtration treatment is transported to second by pipeline and contains alkali circulation cistern, and the cinder in the above-mentioned cinder filtration pond 42 reclaims the reprocessing system by induction system and filtering material and/or black liquor lignin curing reprocessing system links to each other.

The a plurality of automatic atomizer 43 that is provided with in cinder filtration pond 42, its distance is spurted range and can be converted to connect and be as the criterion with automatic atomizer 43.When black liquor adds under the effect that is pressed in automatic atomizer 43 by sewage pump, after atomizing, spurt surface at the cinder filtration layer, black lignin and other coarse granule shape thing of being blended in the black liquor are tentatively filtered, lignin through tentatively filtering out and other coarse granule shape thing are filtered by cinder pond filter cloth 44 and carry the surface of staying screen cloth, when reaching certain thickness, when losing filtering function, can be cinder pond filter cloth 44 pull-ups four limits, collect fast, filter the refuse deep processing processing separately of collecting.After cinder pond filter cloth 44 filtered the coarse granule foreign material, light exhausted water leached seepage flow and goes into adsorption layer 49, is suspended in the trace impurity in the waste water, by the absorption naturally of adsorption layer 49 cinders, in the cinder of microparticle absorption attached to adsorption layer 49.By suction-operated, all major impurities are filtered absorption (comprising water-soluble silicate) substantially in the waste liquid.Simple remaining micro-wooden pigment and alkaline element and other trace element of being contained in the water liquid.Filtering at last through the thin slag of filtering layer 48, can be all pigments that particulate all filters to carry and stays in the filter course 48 again.Last single remaining colourless hydrone and be dissolved in alkali composition filtered water in the water, the last absorption and the dialysis of the permeable layer 47 by the bottom flow in the water leg 45, flow into to contain in the alkali circulation cistern again to recycle.

Cinder in the cinder filtration pond 42 through filtering for a long time, can need be changed because of the saturated adsorption function that loses.Enter boiler burn processing in the lump after can utilizing cinder and coal to mix, the regeneration cinder after mixed combustion, again through Screening Treatment, all cinders that meets the requirement of technology index are imported to replenish in the cinder filtration pond 42 again and are used.All undesirable ultra-fine cinders, can import filtering material by conveying equipment reclaims reprocessing system and/or black liquor lignin and solidifies the reprocessing system and handle, or be processed into Dinas brickes and sell, or be processed into insulation material and sell, or make cement additire and sell and all can.

As shown in figure 11, fine sand purification filtering system and fine sand purification filtering system comprise at least one fine sand filtering ponds 50, bottom in each fine sand filtering ponds 50 is equipped with the rough sand stone layer 51 that the thick particle diameter of 100mm-200mm is the grains of sand composition of 10mm-20mm, it is the filter course 52 that the following grains of sand of 1.5mm are formed that the top of rough sand stone layer 51 is equipped with the thick particle diameter of 500mm-700mm, the top of filter course 52 is equipped with fine sand pond filter cloth 53, bottom in the fine sand filtering ponds 50 is provided with catchment tray 54, and the top of described fine sand pond filter cloth 53 is provided with a plurality of automatic atomizer 55 that links to each other with water inlet pipe.

Fine sand filtering ponds 50 filter areas are can filter every mu of every day more than the plain boiled water 2000T of stage casing, can calculate usable area by the proportional meter of 1:2000 ton according to the output of enterprise.Behind pulp absorbing pump pipeline input fine sand filtering ponds 50, by spurting the effect of mouth, the surface at filter net cloth is spurted in atomizing to filtration plain boiled water again, and the small graininess superbhort fiber of slipping through the net that mixing is contained in the plain boiled water is carried the surface of staying screen cloth by screen cloth.When screen cloth loses certain filter capacity or filter pulp reaches certain thickness excessively,, white slurry is collected otherwise processed fast by tightening the peripheral way of cloth.The light plain boiled water that filters away by the screen cloth filtration (by the fluidics principle) by filter course 52 again makes the particulate that is contained in the water be carried by fine sand to stay filter course 52, after peace and quiet hydrone is gone into coarse sands layer by the space dialysis between fine sand, compile fast in the catchment tray 54 of bottom, pond, flow into the drainage ditch of fine sand filtering ponds 50 peripheries again.

Fine sand in the fine sand filtering ponds 50, after long-term the filtration, all genus normal fibers are retained down after filtration.The recyclable utilization of manufacturing paper with pulp again, but be contained in the ultra-fine deficient microgranular cellulose in the water liquid, because the chiltern attribute has determined it can not be adsorbed on the plain particle of micro fiber fully the upper surface in sand pond, but As time goes on, can progressively pass bottom being contained in particulate in the sand into sand, can't filter up to the saturated sand mud shape that forms, can clear up this moment to sand mud, and method is sand mud to be input in the ad hoc pond dilute stirring.The sand of this moment is owing to the proportion of its proportion greater than paper mud, can sink at the bottom of the pond by nature, the paper mud that is contained in the sand is understood the upper strata that nature is suspended in the pond, the water that will contain paper mud with soil pick-up pump line road is input to cinder filtration pond 42 to carry out filtration, purification and handles, and can fail back continuation use in the fine sand filtering ponds 50 again through the sand of washing.

Above-mentioned chemical cleaning method treatment system comprises the chemical cleaning method treatment pond, the liquid outlet of described peace and quiet water circulation tank uses the liquid outlet in pond to link to each other by the inlet of pipeline with the chemical cleaning method treatment pond respectively with described peace and quiet water circulation, the liquid outlet of chemical cleaning method treatment pond links to each other with the inlet of coagulating basin and standby pool respectively, the liquid outlet of coagulating basin links to each other with the inlet of settling tank, the liquid outlet of settling tank and described standby pool links to each other with the inlet of clear water clarifier-tank, the liquid outlet of clear water clarifier-tank links to each other with described water system, standby pool links to each other by the liquid outlet of pipeline with clear water circulation regulating reservoir, one side of clear water circulation regulating reservoir is provided with sediment waste and accumulates the pond, sediment waste is accumulated the pond and is linked to each other with the delivery port of production fault accommodation pipeline with the inlet of clear water circulation regulating reservoir respectively by transport, the inlet of clear water circulation regulating reservoir links to each other with the delivery port of production fault accommodation pipeline, the liquid outlet of clear water circulation regulating reservoir is regularly replaced the ecological garden of gardening with sediment filtration system and circulation clear water respectively and is linked to each other with the crawl system, the inlet of clear water circulation regulating reservoir links to each other with the delivery port of production fault accommodation pipeline, one side of described sediment filtration system is provided with waste treatment system, and waste treatment system reclaims the reprocessing system by conveying equipment and filtering material and/or black liquor lignin curing reprocessing system links to each other.

Peace and quiet water circulation tank, peace and quiet water circulation are used the setting of pond, clear water circulation regulating reservoir etc., can also prevent that the workman is in normal productive process, because factors such as operate miss or mechanical accident, the waste water that may the cause discharging that exceeds standard, or because of factors such as the long-term heavy rain of weather, the disposal of remedying that recycling waste water index excess and causing can't normally be moved in causing; Also can partly carry out supply in inner cyclic process to external world's evaporation water loss that waste water causes because of factors such as weather high temperature and natural invisible wastes.

Adopt the distinctive technological process of the new design of the present invention, water circulation flow process, processing step and special special equipment facility and chemical material, in the process of producing the paper pulp paper product, press heterogeneity, different recovery value and approach, after the different waste water that produced for each technique process link are handled respectively, directly and indirectly return and recycle in each operation.Thereby realize zero-emission pollution treatment purpose.Also greatly reduced the sewage water yield of required processing.Make ton pulping water consumption can reduce to 15-20 ton (this amount is atmosphere consumption) by about 300 tons, interior circulation cleaning can be controlled in about 50 tons water, with the state emission standard ratio, saved industrial water to greatest extent, thereby also fundamentally reduced cost of sewage disposal; By the ingenious adjustment and the combination of technology, the refuse that is produced in the pollution treatment process can fully be reclaimed and fully utilize.Particularly can reach about 75% to the residual alkali recovery in the waste water, but it is recycled and is worth the entire cost that is produced in the complete offset pollution treatment process, other waste recovery utilizes, the also complete compliance with environmental protection requirements of its processing method, if adopt systems technology among the present invention, equipment, filtering material, water purification agent, reduce and dash the pollution treatment cost that disappears except that refuse effectively utilizes, if again at air feed, the boiling link increases a part of equipment, copy slurry process equipment reasonable disposition, some thinkings of operation twist, can make this enterprise with about 10% of the required equipment investment volume of purchasing of conventional enterprise pollution treatment project, operating cost with about 20% in the enterprise production pollution treatment running, when the pollution treatment that guarantees enterprise can be up to standard, the product yield of this enterprise is doubled about.The system and organic ingenious combination and use of the new technology among the present invention, new equipment, new filtering material and scavenging material in a word, one side can guarantee qualified discharge or interior circulation zero-discharging, can reach first purpose of fundamentally resuming production fully; But be newly designed equipment high efficiency running on the other hand, thereby can promote that product yield improves synchronously; Next is to use the capital quantity of purchasing of conventional pollution treatment instrument 10%, and about 20% operating cost can reach 100% pollution treatment purpose.And can make residual alkali and refuse effective recycling, guarantee that its pollution treatment expense can eternally remain on operation under the low-cost state, thereby will break through fecund fully, control soon, good benefit, save money, simple, easy row, a pollution treatment and a worldwide industry difficult problem that increases production and improves productivity and realize synchronously.

Claims

1. paper pulp fabrication process is characterized in that it comprises the steps:

2) will cut, the raw material after the dedusting carries out the boiling processed according to the water that the prior art utilization contains alkali, raw material is steamed into yellow slurry, the waste water that its production steam course produces is through after the precipitation process, be transported in the clear water circulatory pool, what be used for removing the dust that air supply system produced at gas making process burner hearth and be used for the waste gas purification processing links spurts recycling of atomized water again;

3) the Huang slurry is spurted expanding treatment according to prior art;

4) Huang that step 3) obtained slurry adds water and carries out agitator treating and the precipitation process first time, removes wherein iron, stone, husky foreign material;

7) pulp fibres that obtains during step 5) is separated and step 6) concentrate the pulp fibres that obtains after centrifugation is handled and add water jointly and carry out agitator treating and the precipitation process second time, remove wherein iron, stone, husky foreign material;

10) washing in the step 8) is separated pulp fibres that the pulp fibres obtain and step 9) obtain and add water jointly and carry out agitator treating and precipitation process for the third time, remove wherein iron, stone, husky foreign material;

2. a kind of paper pulp fabrication process according to claim 1, it is characterized in that in the described step 4) to the Huang slurry add water carry out first time agitator treating and precipitation process before it is carried out the shove processing according to prior art, after the water that the shove processing is discharged carries out the processing of concentrated black liquid precipitation and centrifugal separation, again the water of discharging being carried out the screen cloth filtration, purification handles, and then the water of discharging carried out the cinder filtration PROCESS FOR TREATMENT, the water that contains alkali that the cinder filtration PROCESS FOR TREATMENT is discharged stores in the buck circulatory pool, is used for step 2) the replenishing the supply of the required water that contains alkali of boiling processed.

3. a kind of paper pulp fabrication process according to claim 2, the raw material that it is characterized in that in the described step 1) making paper pulp is wheat straw or reed or Chinese alpine rush or bamboo or timber, also comprises in the step 1) wheat straw after the cutting or reed or Chinese alpine rush or bamboo or timber is soaked in water or soaks 3-10 days processing; Described step 2) joining the vapor (steam) temperature that the alkali system feeds to boiling in is 105 ℃-150 ℃, steam pressure is 0.3MPa-0.5MPa, the steam feeding time is 4-6 hour, for utilizing pulp absorbing pump that pasty material is extracted in the conveying worm, the shove station of pasty material being sent into press master by conveying worm carries out shove again in the described step 4); The amount that adds water in the described step 4) in the Huang slurry is the water that the yellow slurry of 1 weight portion adds the 15-30 weight portion; The time of in the described step 5) Huang slurry being carried out washing for the first time separating treatment is 3-5 minute, and the black liquor of discharging is carried out secondary screen cloth filtration treatment; The amount that adds water in the described step 7) in the Huang slurry is the water that the yellow slurry of 1 weight portion adds the 10-20 weight portion; The time of in the described step 8) Huang slurry being carried out washing for the second time separating treatment is 3-5 minute, and the black liquor of discharging is carried out secondary screen cloth filtration treatment; The amount that adds water in the described step 10) in the Huang slurry is the water that the yellow slurry of 1 weight portion adds the 8-15 weight portion; In the described step 11) Huang being starched the time of washing separating treatment for the third time is 3-5 minute.

4. a kind of paper pulp fabrication process according to claim 3 is characterized in that described step 1) is to step 16) in comprise by recycling the conveyor screw that flow process constitutes in following 5 purifications of waste water and replenish new water method:

1) the first waste water circulation process and the additional control coefrficient that makes water: the day water requirement of air supply system is pressed 9-11 times of weight configuration of the paper pulp daily output, wherein boiler required softening peace and quiet water every day is supplied with by pipeline by the water system groundwater abstraction by 4-6 times of weight of the paper pulp daily output, boiler dust and waste gas filtering purify the every day water and limit the quantity of and doubly supplied with by the clear water circulatory pool by paper pulp daily output 4-6, and the additional water of the natural water loss of sedimentation and filtration ditch and clear water circulatory pool every day in cyclic process contains the alkali cistern by second and supplies with by pipeline;

The same multiplying factor that shove is placed restrictions in the wet pulp amount with draining uses, making water contain alkali circulation cistern by first supplies with, after the black liquor of discharging imports the screen cloth filtration system filters after treatment by pipeline input concentrated black liquid precipitation and centrifugal separation system, import the cinder filtration system again and import the additional supply use of liquid caustic soda water that the buck circulatory pool is made decoction system again behind purification filtering, refuse utilizes separately;

First Huang is washed and starched dilution stirring water every day of washing piece-rate system and can be limited the quantity of in 19-21 times of weight of the paper pulp daily output, mainly contains alkali circulation cistern by first and supplies with; Second Huang is washed and starched dilution stirring water every day of washing piece-rate system and can be limited the quantity of in 14-16 times of weight of the paper pulp daily output, contains alkali circulation cistern by first and supplies with 10 times of weight, and other contains alkali circulation cistern by second and supplies with; First, second Huang is washed and starched and is washed 40 times of weight that waste water that piece-rate system discharged every day is about the paper pulp daily output and be input to the first screen cloth filtration system by pipeline, import black liquor filtering and concentrating system after filtering again and after concentration, be input to the first cinder filtration system by pipeline again, purify after filtration the back directly input first contain in the alkali circulation cistern and recycle, residual alkali recycling use rate is at 74-76% in the wastewater treatment cyclic process for this link, and other parts are replenished separately;

5) the 5th waste water circulation process and additional approach and limit coefficient of utilization: fiber bleached system and copy using the pond from peace and quiet water circulation of every day in slurry system and the paper manufacturing systems and supply with water section, differential section is supplied with by water system, white slurry reclaims filtration system after filtering, its waste water carries out purified treatment by pipeline input plain boiled water cleaning system again, peace and quiet water after purified treatment can be imported in the peace and quiet water circulation use pond and do bleaching system, copy the slurry system, the water source supply of paper manufacturing systems, if the water in the peace and quiet water circulation use pond is after recycling for a long time, water quality saturated phenomenon occurs and makes that water quality is aging to influence the manufacturing paper with pulp during quality of product then because of being rich in various microchemistry compositions, import in the chemical purifying system again by pipeline, through the chemical mixing treatment pond, coagulating basin, settling tank is progressively imported in the purification water pool after the purified treatment, again by supplying bleaching in the pipeline input water system, copy slurry, the additional supply of water in each system of papermaking.

5. paper pulp manufacturing installation, comprise water system, air supply system, be used to process the chaffcutter dust pelletizing system of paper making raw material, described water system links to each other with described air supply system by pipeline, air supply system is joined the alkali system by pipeline and boiling and is linked to each other, boiling join the alkali system by pipeline with spurt expanded system and link to each other, it is characterized in that describedly spurting expanded system and removing the assorted firmly dilution stirring pool of iron-stone by pipeline and first and link to each other, first removes assorted firmly the dilution in the stirring pool of iron-stone is provided with agitator, first removes the assorted firmly dilution stirring pool of iron-stone washes and starches by the pipeline and first Huang and washs piece-rate system and link to each other, first Huang is washed and starched and is washed piece-rate system and remove the assorted firmly dilution stirring pool of iron-stone by pipeline and second respectively and link to each other with the first screen cloth filtration system, second removes assorted firmly the dilution in the stirring pool of iron-stone is provided with agitator, second removes the assorted firmly dilution stirring pool of iron-stone washes and starches by the pipeline and second Huang and washs piece-rate system and link to each other, second Huang is washed and starched and is washed piece-rate system and remove the assorted firmly dilution stirring pool of iron-stone by pipeline and the 3rd respectively and link to each other with the first screen cloth filtration system, the 3rd removes assorted firmly the dilution in the stirring pool of iron-stone is provided with agitator, the 3rd removes the assorted firmly dilution stirring pool of iron-stone washes and starches by pipeline and the 3rd Huang and washs piece-rate system and link to each other, the 3rd Huang is washed and starched and is washed piece-rate system and link to each other with the second screen cloth filtration system with the acid-base neutralization system by pipeline respectively, the acid-base neutralization system links to each other with described water system with the screening system of removing sand respectively by pipeline, the screening system of removing sand reclaims filtration system with fiber bleached system with useless slurry by pipeline respectively and described water system links to each other, fiber bleached system links to each other with described water system with copying slurry system and/or paper manufacturing systems and reclaim filtration system by pipeline and white slurry, copying slurry and/or paper manufacturing systems links to each other with white slurry recovery filtration system with described air supply system with described water system by pipeline, the described first screen cloth filtration system concentrates the centrifugation treatment system by the useless slurry of pipeline and recovery respectively and links to each other with black liquor filtering and concentrating system, reclaiming the concentrated centrifugation treatment system of useless slurry links to each other with black liquor filtering and concentrating system by pipeline, the centrifugation treatment system that concentrates the useless slurry of recovery reclaims the Huang slurry that gets off and delivers to the 3rd except that in the assorted firmly dilution stirring pool of iron-stone, black liquor filtering and concentrating system links to each other with the first cinder filtration system by pipeline, each concentrated black liquid coagulation tank of black liquor filtering and concentrating system reclaims the reprocessing system by conveying equipment and filtering material and/or black liquor lignin curing reprocessing system links to each other, the first cinder filtration system contains alkali circulation cistern by pipeline and first and links to each other, first contains alkali circulation cistern joins alkali system and/or described first by pipeline and described boiling respectively and removes the assorted firmly dilution stirring pool of iron-stone and/or described second and remove the assorted firmly dilution stirring pool of iron-stone and link to each other, the described second screen cloth filtration system links to each other with the second cinder filtration system by pipeline, the second cinder filtration system contains alkali circulation cistern by pipeline and second and links to each other, second contains alkali circulation cistern, and dilution stirring pool and/or the described the 3rd dilutes stirring pool except that iron-stone is assorted firmly and/or the clear water circulatory pool links to each other except that iron-stone is mixed firmly by pipeline and described second respectively, the clear water circulatory pool links to each other with described air supply system by pipeline, described useless slurry reclaims filtration system and links to each other with fine sand purification filtering system by pipeline, fine sand purification filtering system links to each other with peace and quiet water circulation tank by pipeline, peace and quiet water circulation tank is washed and starched by pipeline and described the 3rd Huang and is washed piece-rate system and/or described acid-base neutralization system and/or the described screening cycle chemistry cleaning treatment system that removes sand and link to each other, described white slurry reclaims filtration system and links to each other with fine sand purification filtering system by pipeline, fine sand purification filtering system uses the pond to link to each other with peace and quiet water circulation, peace and quiet water circulation uses the pond to link to each other with water system and/or chemical cleaning method treatment system by pipeline, described useless slurry reclaims filtration system and links to each other with fiber bleached system by conveying equipment, described white slurry filtering recovering system is by conveying equipment and reclaim white slurry treatment system and link to each other, reclaims to starch treatment system in vain and copy the slurry system or paper manufacturing systems links to each other with described.

6. paper pulp manufacturing installation according to claim 5, it is characterized in that the described expanded system and described first of spurting removes on the pipeline that the assorted firmly dilution stirring pool of iron-stone links to each other and is connected with the shove system, the shove system links to each other with concentrated black liquid precipitation and centrifugal separation system by pipeline, concentrated black liquid precipitation and centrifugal separation system links to each other with the screen cloth filtration system by pipeline, the screen cloth filtration system links to each other with the cinder filtration system by pipeline, the cinder filtration system links to each other with the buck circulatory pool by pipeline, the buck circulatory pool is joined the alkali system by pipeline and described boiling and is linked to each other, and concentrated black liquid precipitation and centrifugal separation system reclaims reprocessing system with the screen cloth filtration system by conveying equipment and filtering material with the cinder filtration system and/or black liquor lignin curing reprocessing system links to each other.

7. paper pulp manufacturing installation according to claim 6, it is characterized in that described first Huang is washed and starched washs piece-rate system and described second Huang and washes and starches and wash piece-rate system and described the 3rd Huang and wash and starch and wash piece-rate system and comprise respectively that Huang is washed and starched and wash seperator, Huang is washed and starched and is washed seperator and comprise frame (1), frame (1) is provided with a plurality of horizontal washtubs (2), a plurality of horizontal washtubs (2) are hierarchal arrangement from top to bottom, each horizontal washtub (2) comprises that the cross section that the axis along continuous straight runs is provided with is circular staving (6), each staving (6) can be provided with shaft (9) rotationally along central axis, the shaft part that is positioned at staving (6) on the shaft (9) is provided with blade (32), shaft (9) passes drive end bearing bracket (10) from the front end of staving (6) and stretches out staving (6), the external part of each shaft (9) links to each other with the motor shaft transmission of motor (5), staving (6) is fixed on the described frame (1), one end at the staving of the top (6) top is provided with inlet, the bottom of staving (6) other end is provided with the liquid outlet that links to each other with the inlet of below woven hose (3), the liquid outlet of woven hose (3) links to each other with the inlet at staving (6) top of the horizontal washtub (2) that is positioned at its below, utilize woven hose (3) preceding between the staving (6) of neighbouring horizontal washtub (2), what the back was staggered is connected, the inlet at cylindrical shell (8) top of the horizontal solid-liquid seperator (4) below the bottom of the horizontal washtub (2) of below utilizes woven hose (3) and is positioned at it links to each other, be connected with the joint door on each woven hose (3), described cylindrical shell (8) is fixed on the described frame (1), cylindrical shell (8) can be provided with centrifugal shaft (11) rotationally along central axis, the shaft part that is positioned at cylindrical shell (8) on the centrifugal shaft (11) is provided with conical cartridge filter (12), the roundlet mouth end of taper cartridge filter (12) links to each other with the inlet at described cylindrical shell (8) top by mozzle (13), the madial wall of taper cartridge filter (12) is provided with helical blade (19) around ground, on described cylindrical shell (8) madial wall below the big round mouth end of taper cartridge filter (12), be provided with solid-liquid comparting plate (31), cylindrical shell (8) bottom that is positioned at taper cartridge filter (12) below at solid-liquid comparting plate (31) right-hand member is provided with leakage fluid dram (14), cylindrical shell (8) bottom at solid-liquid comparting plate (31) left end is provided with slag notch (15), described centrifugal shaft (11) passes protecgulum (24) from the front end of cylindrical shell (8) and stretches out cylindrical shell (8), the external part of centrifugal shaft (11) links to each other with the motor shaft transmission of described motor (5), the rear end of each described staving (6) is respectively equipped with AD (16), fixed blade (17) is installed on the madial wall of each described staving (6), the sidewall of each described staving (6) is provided with inspection hatch (18), the rear end of described cylindrical shell (8) is provided with access door (20), the sidewall of cylindrical shell (8) is provided with observes access panel (21), taper cartridge filter (12) comprises centrifugal network neck bush (22), the outer surface of centrifugal network neck bush (22) is coated with screen pack (23), the front end of described shaft (9) adopts bearing and bearing block to be installed in the center of described drive end bearing bracket (10), the rear end of shaft (9) adopts bearing and bearing block to be installed in the center of support (25), the madial wall of the outer end of support (25) and described staving (6) is fixedly linked, the front end of described centrifugal shaft (11) adopts bearing and bearing block to be installed in the center of described protecgulum (24), the rear end of centrifugal shaft (11) adopts bearing and bearing block to be installed in the center of after-poppet (26), the madial wall of the outer end of after-poppet (26) and described cylindrical shell (8) is fixedly linked, described blade (32) comprises a plurality of radial bars (27), a plurality of radial bars (27) are one group with 3-6, the inner end of every group of radial bars (27) radially is fixedly linked with described shaft (9) respectively, the outer end of every group of radial bars (27) is connected with annular ring (28) respectively, adopt a plurality of axial stem (29) to link to each other between the annular ring (28) of each group vertically, in each axial stem (29), be fixed with vane plate (30) respectively on annular ring (28) and the described radial bars (27), vane plate of outmost turns (30) and described fixed blade (17) arranged in dislocation, the motor shaft of described motor (5) adopts the band transmission to drag described centrifugal shaft (11), centrifugal shaft (11) adopt the band transmission from bottom to top drag each described shaft (9), the plate face of described fixed blade (17) and radially between angle be 25 °-35 °, the coning angle of described taper cartridge filter (12) is 40 °-60 °, described horizontal washtub (2) is arranged in 4 layers from top to bottom, and every layer has 2 horizontal washtubs (2).

8. paper pulp manufacturing installation according to claim 7, it is characterized in that described first Huang washes and starches inlet that the Huang of washing piece-rate system washes and starches the staving of the top of washing seperator (6) top and remove the assorted firmly dilution stirring pool of iron-stone by pipeline and described first and link to each other, first Huang is washed and starched the Huang of washing piece-rate system and is washed and starched the slag notch (15) and described second of the horizontal solid-liquid seperator (4) of washing seperator and remove the assorted firmly dilution stirring pool of iron-stone and link to each other, second removes the assorted firmly dilution stirring pool of iron-stone and described second Huang washes and starches the Huang of washing piece-rate system and washes and starches the inlet at the staving of the top of washing seperator (6) top and link to each other, second Huang is washed and starched the Huang of washing piece-rate system and is washed and starched the slag notch (15) and the described the 3rd of the horizontal solid-liquid seperator (4) of washing seperator and remove the assorted firmly dilution stirring pool of iron-stone and link to each other, the 3rd removes the assorted firmly dilution stirring pool of iron-stone links to each other and washes and starches the Huang of washing piece-rate system with described the 3rd Huang and wash and starch the inlet at the staving of the top of washing seperator (6) top and link to each other, and the 3rd Huang is washed and starched slag notch (15) that the Huang of washing piece-rate system washes and starches the horizontal solid-liquid seperator (4) of washing seperator and linked to each other with described acid-base neutralization system.

9. paper pulp manufacturing installation according to claim 8, it is characterized in that described first screen cloth filtration system and the described second screen cloth filtration system and the useless filtration system of starching reclaim the first filtration water channel (33) that filtration system comprises that respectively along continuous straight runs sets up with white slurry, first two sides of filtering water channel (33) top link to each other with the top of the first order screen pack (34) that is obliquely installed respectively, the bottom of each first order screen pack (34) links to each other with first inboard that collects stock tank (35) that along continuous straight runs sets up respectively, the outside of each first collection stock tank (35) links to each other with second inboard of filtering water channel (41) respectively, second top of filtering water channel (41) outside links to each other with the top of the second level screen pack (36) that is obliquely installed respectively, the inboard of second sewage sump (37) that set up with along continuous straight runs respectively the bottom of each second level screen pack (36) links to each other, the outside of each second sewage sump (37) links to each other with filtration sewage farm (38), the below of each described first order screen pack (34) and each described second level screen pack (36) is respectively equipped with first collecting tank (40), each first collecting tank (40) compiles pond (56) with the filtered water that is positioned at its outside respectively and links to each other, first of the described first screen cloth filtration system is filtered water channel (33) and is washed and starched with described first Huang respectively by pipeline and wash piece-rate system and described second Huang and wash and starch the Huang of washing piece-rate system and wash and starch the leakage fluid dram (14) of the horizontal solid-liquid seperator (4) of washing seperator and link to each other, first of the second screen cloth filtration system is filtered water channel (33) and is washed and starched the Huang of washing piece-rate system by pipeline and the 3rd Huang and wash and starch the leakage fluid dram (14) of the horizontal solid-liquid seperator (4) of washing seperator and link to each other, the first filtration water channel (33) that useless slurry reclaims filtration system links to each other by the leakage fluid dram of pipeline with screening slagging-off impurity removed system, and first of white slurry recovery filtration system is filtered water channel (33) by pipeline and fiber bleached system, copy the slurry system, the leakage fluid dram of paper manufacturing systems links to each other.

10. paper pulp manufacturing installation according to claim 9, it is characterized in that described cinder filtration system and the described first cinder filtration system and the described second cinder filtration system comprise at least one cinder filtration pond (42) respectively, each cinder filtration pond (42), bottom in the cinder filtration pond (42) is equipped with the permeable layer (47) that the thick particle diameter of 200mm-300mm is the cinder composition of 10mm-50mm, it is the filter course (48) that the following cinder of 1.5mm is formed that the top of permeable layer (47) is equipped with the thick particle diameter of 600mm-1600mm, the top of filter course (48) is equipped with the adsorption layer (49) that the thick particle diameter of 200mm-400mm is the cinder composition of 10mm-20mm, the top of adsorption layer (49) is equipped with cinder pond filter cloth (44), bottom in the cinder filtration pond (42) is provided with water leg (45), and the top of described cinder pond filter cloth (44) is provided with a plurality of automatic atomizer (43) that links to each other with water inlet pipe (46).

11. paper pulp manufacturing installation according to claim 10, it is characterized in that the described first cinder filtration system comprises 4-8 cinder filtration pond (42), the water of input is handled in 4-8 cinder filtration pond (42) by the pipeline cascade filtration, the water of 4-8 cinder filtration pond (42) filtration treatment is transported to described first by pipeline and contains alkali circulation cistern, the described second cinder filtration system comprises 3-6 cinder filtration pond (42), the water of input is handled in 3-6 cinder filtration pond (42) by the pipeline cascade filtration, the water of 3-6 cinder filtration pond (42) filtration treatment is transported to described second by pipeline and contains alkali circulation cistern, and the cinder in the described cinder filtration pond (42) reclaims the reprocessing system by induction system and filtering material and/or black liquor lignin curing reprocessing system links to each other.

12. paper pulp manufacturing installation according to claim 11, it is characterized in that described fine sand purification filtering system and described fine sand purification filtering system comprise at least one fine sand filtering ponds (50), bottom in each fine sand filtering ponds (50) is equipped with the rough sand stone layer (51) that the thick particle diameter of 100mm-200mm is the grains of sand composition of 10mm-20mm, it is the filter course (52) that the following grains of sand of 1.5mm are formed that the top of rough sand stone layer (51) is equipped with the thick particle diameter of 500mm-700mm, the top of filter course (52) is equipped with fine sand pond filter cloth (53), bottom in the fine sand filtering ponds (50) is provided with catchment tray (54), and the top of described fine sand pond filter cloth (53) is provided with a plurality of automatic atomizer (55) that links to each other with water inlet pipe.

13. paper pulp manufacturing installation according to claim 12, it is characterized in that described chemical cleaning method treatment system comprises the chemical cleaning method treatment pond, the liquid outlet of described peace and quiet water circulation tank uses the liquid outlet in pond to link to each other by the inlet of pipeline with the chemical cleaning method treatment pond respectively with described peace and quiet water circulation, the liquid outlet of chemical cleaning method treatment pond links to each other with the inlet of coagulating basin and standby pool respectively, the liquid outlet of coagulating basin links to each other with the inlet of settling tank, the liquid outlet of settling tank and described standby pool links to each other with the inlet of clear water clarifier-tank, the liquid outlet of clear water clarifier-tank links to each other with described water system, standby pool links to each other by the liquid outlet of pipeline with clear water circulation regulating reservoir, one side of clear water circulation regulating reservoir is provided with sediment waste and accumulates the pond, sediment waste accumulate the pond by transport respectively with, the inlet of clear water circulation regulating reservoir links to each other with the delivery port of production fault accommodation pipeline, the liquid outlet of clear water circulation regulating reservoir is regularly replaced the ecological garden of gardening with sediment filtration system and circulation clear water respectively and is linked to each other with the crawl system, the inlet of clear water circulation regulating reservoir links to each other with the delivery port of production fault accommodation pipeline, one side of described sediment filtration system is provided with waste treatment system, and waste treatment system reclaims the reprocessing system by conveying equipment and filtering material and/or black liquor lignin curing reprocessing system links to each other.