CN107119484A - A kind of environmentally friendly deinking slag starches process for producing method with OCC - Google Patents
A kind of environmentally friendly deinking slag starches process for producing method with OCC Download PDFInfo
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- CN107119484A CN107119484A CN201710493715.9A CN201710493715A CN107119484A CN 107119484 A CN107119484 A CN 107119484A CN 201710493715 A CN201710493715 A CN 201710493715A CN 107119484 A CN107119484 A CN 107119484A
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- deinking slag
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- deinking
- slag
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- 239000002761 deinking Substances 0.000 title claims abstract description 189
- 239000002893 slag Substances 0.000 title claims abstract description 182
- 238000000034 method Methods 0.000 title claims abstract description 75
- 230000008569 process Effects 0.000 title claims abstract description 36
- 229920002472 Starch Polymers 0.000 title claims description 11
- 235000019698 starch Nutrition 0.000 title claims description 11
- 239000002002 slurry Substances 0.000 claims abstract description 64
- 239000011268 mixed slurry Substances 0.000 claims abstract description 45
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 23
- 239000010893 paper waste Substances 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 238000003860 storage Methods 0.000 claims abstract description 18
- 238000010790 dilution Methods 0.000 claims abstract description 17
- 239000012895 dilution Substances 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 17
- 238000005192 partition Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 239000000123 paper Substances 0.000 claims description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 239000002562 thickening agent Substances 0.000 claims description 25
- 230000018044 dehydration Effects 0.000 claims description 18
- 238000006297 dehydration reaction Methods 0.000 claims description 18
- 230000005484 gravity Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 7
- 238000005189 flocculation Methods 0.000 claims description 6
- 230000016615 flocculation Effects 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 5
- 238000004537 pulping Methods 0.000 claims description 5
- 238000007865 diluting Methods 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims description 4
- 239000002655 kraft paper Substances 0.000 claims description 4
- 239000011087 paperboard Substances 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000005188 flotation Methods 0.000 claims description 3
- 229920002521 macromolecule Polymers 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 4
- -1 pipeline Substances 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000008719 thickening Effects 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 18
- 238000011282 treatment Methods 0.000 description 8
- 230000007613 environmental effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009284 supercritical water oxidation Methods 0.000 description 3
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 208000023445 Congenital pulmonary airway malformation Diseases 0.000 description 1
- 241000202567 Fatsia japonica Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003922 charged colloid Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
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- 239000000779 smoke Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
- D21C5/025—De-inking
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/10—Concentrating spent liquor by evaporation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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Abstract
Process for producing method is starched the present invention relates to a kind of environmentally friendly deinking slag and OCC, is comprised the following steps：Deinking slag is collected, deinking slag mixes reaction, deinking slag thickening pretreatment, pressafiner squeezing, the dilution of deinking slag, the storage of deinking slag, pipeline, deinking slag and the concentration of OCC slurry mixing polydisc with flocculant, deinking slag accounts for the accounting 20~30% of gross weight, OCC waste paper pulps account for the accounting 70~80% of gross weight, the squeezing of mixed slurry propelling worm, dirt count, through tearing up spiral, conveyor screw, heating coil into heat partition main frame progress dirt count；Slurry is stored, thickened, with slurry, paper machine is manufactured paper with pulp.Prior art is distinguished, each processing step closing of the invention, harmless processing solve the problems, such as the complete environment protection treating of paper mill deinking slag；Deinking slag environment protection treating expense is saved, paper production cost, remarkable in economical benefits is saved.
Description
Technical field
Processing technology field is starched the present invention relates to deinking slag and OCC, more particularly to a kind of environmentally friendly deinking slag is handled with OCC slurries
Production method
Background technology
Paper industry waste paper recycles the deinking slag produced, and country is included according to national environmental protection regulation《National Hazard gives up
Name is recorded》, register sign：" waste classification "：HW12 dyestuffs, coating waste, " industry source "：Pulp manufacture, " waste code "：
221-001-12；" waste title "：Waste paper recycles the deinking slag produced in processing procedure, " hazard property "：T (toxicity
Toxicity,T).It is included in《National Hazard waste register》Deinking slag, it is produced, storage, transport, receive, disposal must be according to
Hazardous waste is managed, and strictly observes national relevant laws and regulations.
There are following methods to handle it in the prior art：
1st, burning method：
Current many large-scale paper plant's conventional methods both at home and abroad：Deinking slag is burned through suitable pretreating process Hou Song power plants for self-supply
Boiler is burned, and to burning after the lime-ash produced, flying dust environmental protection treatment, deinking slag environmental improvement can be achieved.Shortcoming：(1), burning method
Clean combustion technique must be used, it is necessary to control flue gas qualified discharge, prevent smoke pollution, the equipment investment of boiler CIU and
Operating cost is high, and absolute economic benefit is relatively low, and the investment payback time is long.(2) after must being carried out to secondary pollution lime-ash and flying dust
Continuous environmental protection treatment.
The practice such as the 2nd, ocean is discarded, directly fill：Environmental regulation is limited, and is not applicable generally.
3rd, supercritical water oxidation method (SCWO methods)：
Using supercritical water oxidation technique, in 25MPa pressure and more than 400 DEG C, organic matter, air (or oxygen) and water
Dissolve each other completely, organic matter is aoxidized, reach the purpose of removal organic polluter.Its HTHP operating condition is to equipment, material
The high request that matter is proposed, and some problems present on application, limitation engineering design, application.
4th, application technology as the second resource：
The deinking slag that technical research is proposed separates and recovers papermaking filler, agricultural is applied to as compost, built using production
Sheet material, gasification reclaim the comprehensive utilization techniques such as heat and are still in the elementary step, and technological means is not also overripened, and limitation engineering is set
Meter, application.
In the prior art, deinking Pulping Line, often produces one ton of Deinking Pulp and produces 0.1~0.2 ton of over dry deinking slag, pressure
Deinking slag mass dryness fraction 40~50% after pretreatment is squeezed, the slurry line of 300 tons of Deinking Pulps is produced daily, deinking slag over dry is 40~50 tons, squeezing
Wet about 100~120 tons of deinking slag, feature is that the deinking slag quantity produced is big, and it stores, transported, receiving, disposal will meet country
Regulation, greatly, processing cost is high for technical difficulty.Current paper mill scale is voluntarily used as paper making raw material, resource by the use of deinking slag
Change using whole deinking slags produced by our factory's deinking Pulping Line, also without more ripe production technology.
Have the disadvantage that in the prior art：
1st, deinked sludge is rich in ink, and environmental protection supervision is classified as hazardous waste, it is necessary to strict collection, accumulating, prevents leakage from producing
Raw pollution.Being handled outside committee must transport outward through sludge pressing, stacking, loading, there is dewatered sludge and stack, store difficulty, handle difficult, committee
Outer processing is loaded, transit link has leakage hidden danger, the shortcomings of outer processing cost of entrusting is high.
2nd, deinked sludge yield is big, and main part is fiber, fiber fines and filler, because very small amount ink is attached to fibre
Dimension, on filler, it is impossible to directly used as paper making raw material, cause that fiber loss is big, consumption of raw materials is big.
The content of the invention
For this reason, it may be necessary to which provide a kind of environmentally friendly deinking slag starches process for producing method with OCC, for solving deinking in the prior art
Slag storage processing difficulty, the wasting of resources, not environmentally, the high technical problem of processing cost.
To achieve the above object, inventor provide a kind of environmentally friendly deinking slag and starch process for producing method with OCC, including it is following
Step：
Deinking slag is collected：
By the deinking slag produced in Deinking Pulp line flotation cell, froth breaking groove equipment is by current gravity or is pumped into deinking slag receipts
Collect groove；
Flocculation pretreatment：
The deinking slag gathered is sent into medicine reactor, addition flocculant is flocculated；
Concentration pretreatment：
It will add in the deinking slag feeding thickener after flocculant, concentrated, the moisture content of deinking slag is by concentrating machine filter
The eyelet of net is removed；
Pressafiner is squeezed：
By in the deinking slag feeding pressafiner after concentration, extrusion dehydration is carried out by pressafiner；
Deinking slag dilutes：
By the deinking slag after squeezing from propelling worm discharge port falls into dilution hopper, toward dilution hopper addition OCC slurrying
Line plain boiled water is diluted, by the mass concentration percentage dilution of deinking slag to 4~8%；
Deinking slag is stored：
Deinking slag after dilution is transferred into groove by entering deinking slag through chute, deinking slag is transferred into the deinking slag in groove leads to
Cross and be pumped into workshop intermediate pool or middle storage slurry tower is stored, storage slurry tower in centre is connected by shifting pump and deinking slag transfer groove
Connect；
Deinking slag mixes concentration with OCC slurries：
Deinking slag in the intermediate pool of workshop is delivered in many disk thickeners of OCC lines, mixes and is taken off with OCC waste paper pulps
Water is concentrated, and wherein deinking slag accounts for the accounting 20~30% of gross weight, and OCC waste paper pulps account for the accounting 70~80% of gross weight, is taken off
The mass concentration percentage of ink residue is that the mass concentration percentage of 4~8%, OCC waste paper pulps is 1.2~1.5%, forms quality
Percentage carries out dehydration concentration for 1.2~1.5% mixed slurry in many disk thickeners of OCC lines, and many disks of OCC lines are dense
The mass concentration percentage of contracting machine exit mixed slurry is 7~12%；
Mixed slurry propelling worm is squeezed：
The mixed slurry of many disk thickener discharge port concentration 7~12% of OCC lines is sent into inclined screw, will by inclined screw
Mixed slurry feeding propelling worm is squeezed；
Mixed slurry dirt count：
Propelling worm is squeezed out to the mixed slurry feeding heat partition system come to be handled, through tearing up spiral, conveying spiral shell
Rotation, heating coil enter heat partition main frame and carry out dirt count；
Mixed slurry is with slurry to manufacture paper with pulp：
It is former as OCC slurries paper tube with slurry of manufacturing paper with pulp after diluting, storing, thicken by the mixed slurry after dirt count
Paper, grey board, kraft paperboard, fluting medium.
As a kind of selection process of the present invention, in deinking slag collection step, deinking slag collecting tank uses Liquid level,
The flow of the deinking slag of next procedure processing is sent to be automatically adjusted according to liquid level.
As a kind of selection process of the present invention, in flocculation pre-treatment step, flocculant is PAMC
Family macromolecule polymer, the addition of flocculant is 10~20ppm.
As a kind of selection process of the present invention, in deinking slag storing step, groove, workshop intermediate pool, middle storage are transferred
Paper pulp agitator is equipped with slurry tower, deinking slag is continuously stirred.
As a kind of selection process of the present invention, pipeline is used in the course of conveying of deinking slag, pipeline is
Closed conveying, sets flowmeter and density Adjusting System that its concentration is adjusted on pipeline.
As a kind of selection process of the present invention, in mixed slurry dirt count step, mixed slurry passes through heating
Steam is passed through during spiral, mixed slurry temperature is brought up to 90~105 DEG C, the mixed slurry after heating enters heat partition main frame,
The heat dispersion machine Moving plate of rotation and quiet disk inter-lobe clearance are 0.1~0.3mm.
Prior art is different from, above-mentioned technical proposal carries out mixed dehydration concentration by deinking slag and OCC waste paper pulps, taken off
Ink residue ash content is high, and the fibre length of fiber fines is short, and water filtering performance is poor, and many disk thickener processing are used alone can cause to justify more
The dehydration mesh eyes of disk are blocked, and do not take off water.OCC pulp fiber length is longer, and dehydration is very fast, and OCC pulp fibres are first in compound
First it is dehydrated ash content, fiber fines in many disk wire sides one metafiltration cake of formation, deinking slag to be trapped on OCC slurry filter cakes, to reach
It is dehydrated the purpose of concentration.Mixed slurry dirt count, under high-temperature and high concentration, by the slurry of Moving plate and quiet disk between cog by height
Shearing force, mechanical friction, impulsive force, interfibrous frictional force and fiber such as mutually rub at the active force, by dirt count
Slurry, stock quality improves, and mitigates paper-machine screen splenium, drying portion ink, Stickies deposit obstacle, do not result in paper machine into
Shape net pastes net or squeezing felt-cloth blocks and influences paper machine normally to manufacture paper with pulp, and paper is not in big ink point influence presentation quality.
The whole Seal treatments of deinking slag of the present invention are voluntarily utilized, and solve the problems, such as the complete environment protection treating of paper mill deinking slag；Save deinking slag
Environment protection treating expense, saves paper production cost, remarkable in economical benefits.
Embodiment
To describe the technology contents of technical scheme in detail, feature, the objects and the effects being constructed, below in conjunction with specific reality
Example is applied to be explained in detail.
Embodiment one
A kind of environmentally friendly deinking slag starches process for producing method with OCC, comprises the following steps：
Deinking slag is collected：
By the deinking slag produced in Deinking Pulp line flotation cell, froth breaking groove equipment is by current gravity or is pumped into deinking slag receipts
Collect groove；Deinking slag collecting tank uses Liquid level, send the flow of the deinking slag of next procedure processing to be automatically adjusted according to liquid level.Protect
Collecting tank level stability is held, effectively prevents liquid level is too high to produce leakage.
In the present embodiment, the volume of deinking slag collecting tank is 25m3, the 2500~4000L/ of deinking slag flow being collected into
Min, concentration 1~2%, deinking slag is transported to medicine reactor and mixed with flocculant by the suitable centrifuge pulp pump of selection to react.
Flocculation pretreatment：
The deinking slag gathered is sent into medicine reactor, addition flocculant is flocculated；Flocculant is poly- for cation
Acrylic amide high molecular polymer, the addition of flocculant is 10~20ppm.That is 1m3Deinking slag solution adds 10~20 grams
Flocculant, consumption is suitably added and subtracted according to the flocculation of deinking slag, dehydrating effect.Fiber fines in deinking slag are negatively charged, with sun from
After the reaction of subtype flocculant, fiber fines polymerize to form small floc sedimentation, and water filtering performance improves.The deinking slag after flocculant is added, has taken off
Aqueous to improve, under gravity, moisture content therein can be removed by the eyelet of gravity bed thickener filter screen.Cation poly- third
Acrylamide (CPAM) is chain macromolecule compound, because it has a variety of active groups, can, absorption affine with many materials
Form hydrogen bond.Mainly flocculate negatively charged colloid.
Concentration pretreatment：
It will add in the deinking slag feeding thickener after flocculant, concentrated, the moisture content of deinking slag is by concentrating machine filter
The eyelet of net is removed；The most moisture content of concentration removing, to reach pressafiner concentration for the treatment of.
In the present embodiment, deinking slag serves the dehydration concentration of gravity bed thickener, the water of gravity bed thickener removing about 90%
Point, thickener outlet deinking slag concentration 7~8%.
Pressafiner is squeezed：
By in the deinking slag feeding pressafiner after concentration, extrusion dehydration is carried out by pressafiner；
In the present embodiment, after deinking slag is squeezed through pressafiner, mass dryness fraction 40~50%.Deinking slag is concentrated and squeezes
Journey, deinking slag obtains initial concentration washing, purifying, the influence reduction to paper machine water system, papermaking chemical product, is conducive to papermaking
Production line reuse.
Deinking slag dilutes：
By the deinking slag after squeezing from propelling worm discharge port falls into dilution hopper, toward dilution hopper addition OCC slurrying
Line plain boiled water is diluted, by the mass concentration percentage dilution of deinking slag to 4~8%；Deinking slag after dilution can use from
Heart stock pump is pipelined to deinking slag reuse workshop, and transshipment charge is greatly reduced.
In the present embodiment, selection OCC Pulping Line polydisc clear filtrate plain boiled waters are diluted, dilution water Pipe installing flowmeter,
Regulating valve, accurate control dilution water, deinking slag concentration 4~8% after dilution.OCC Pulping Line plain boiled waters, are primarily referred to as paper machine wet
The plain boiled water that portion is produced, including plain boiled water, the shower water that net part forming dehydration is produced.In paper-making process, more than 95% in slurry
Water is removed by wet end.With the formation of page, slurry gradually constitutes complete filtering layer, fiber fines, filler on the net
Gradually decreased with the leaching of auxiliary agent, white water consistency is reduced successively.By the height of concentration, the plain boiled water of wet end can be divided into enriched water and
Dilute plain boiled water, the plain boiled water call enriched water that typically wet end front end formation zone (at dewatering plate) is filtered, the high person of concentration is reachable
0.3%.The plain boiled water that High Pressure Difference drying zone (at suction flat box, couch roll) is produced calls dilute plain boiled water, and the white water consistency in this portion is
0.06~0.08%.Can be with using enriched water and dilute plain boiled water in the present embodiment.
Deinking slag is stored：
Deinking slag after dilution is transferred into groove by entering deinking slag through chute, deinking slag is transferred into the deinking slag in groove leads to
Cross and be pumped into workshop intermediate pool or middle storage slurry tower is stored, storage slurry tower in centre is connected by shifting pump and deinking slag transfer groove
Connect；
Transfer groove, workshop intermediate pool, middle storage are starched in tower and are equipped with paper pulp agitator, and deinking slag is continuously stirred.
Transfer groove and middle storage slurry tower is provided with paper pulp agitator and continuously stirred, it is ensured that deinking slag is not stratified, and concentration is equal
One.This storage method closes storage using container, is compared with conventional deinking slag open storage ground, has prevented contaminated soil, water body
May.
In the present embodiment, it is 60m that deinking slag, which transfers groove,3Storage slurry tower is 500m in the middle of stainless steel groove, deinking slag3Steel is starched
Tower, it is sufficient to meet 50 tons of over dry deinking slags of day output continuously production or maintenance needs.
Pipeline is used in the course of conveying of deinking slag, pipeline is closed conveying, and stream is set on pipeline
Its concentration is adjusted for gauge and density Adjusting System.The deinking slag dielectric behavior of concentration 4~8% is close to same concentration paper
Slurry, can select flow, the suitable centrifuge pulp pump of lift to be pumped according to fed distance, and deinking slag is sent into deinking slag and returned
Use workshop.Flowmeter, density Adjusting System are installed on pipe-line transportation system, accurate metering, statistical requirements is reached.Pipeline side
Method is closing mode of movement, prevents conveying process pollution environment, and transportation expenses are low.
In the present embodiment, pipeline is carried out from centrifuge pulp pump, 700 meters of fed distance accomplishes continuous closing conveying,
Cost of forwarding is low.
Deinking slag mixes concentration with OCC slurries：
Deinking slag in the intermediate pool of workshop is delivered in many disk thickeners of OCC lines, mixes and is taken off with OCC waste paper pulps
Water is concentrated, and wherein deinking slag accounts for the accounting 25% of gross weight, and OCC waste paper pulps account for the accounting 75% of gross weight, the matter of deinking slag
Amount percentage is that the mass concentration percentage of 6%, OCC waste paper pulps is 1.3%, and forming mass concentration percentage is
1.3% mixed slurry carries out dehydration concentration, many disk thickener exit mixing slurries of OCC lines in many disk thickeners of OCC lines
The mass concentration percentage of material is 10%；
Because deinking slag ash content is high, the fibre length of fiber fines is short, and water filtering performance is poor, and many disk thickeners are used alone
Processing can cause the dehydration mesh eyes of many disks to block, and not take off water.OCC waste paper pulp fibre lengths are longer, and dehydration is very fast, mix
OCC pulp fibres are dehydrated ash content, fiber fines in many disk wire sides one metafiltration cake of formation, deinking slag and are trapped in first in conjunction material
On OCC slurry filter cakes, to reach the purpose of dehydration concentration.
Deinking slag removes many disk thickeners with OCC waste paper mixed slurries, and dehydration concentration, thickener exit concentration 10% is dense
The slurry of degree 10% sends to propelling worm and further improves mass dryness fraction to reach the concentration for the treatment of of heat partition system.Taken off in concentration process
Except moisture content, deinking slag obtains primary wash purification.
Mixed slurry propelling worm is squeezed：
The mixed slurry of many disk thickener discharge port concentration 10% of OCC lines is sent into inclined screw, will be mixed by inclined screw
Slurry feeding propelling worm is closed to be squeezed；After propelling worm extruding, mix slurry mass dryness fraction and bring up to 25~30%.Improve mass dryness fraction
Afterwards, deinking slag, the anionic trash of OCC slurries are greatly reduced, and the cationic demand for mixing slurry is positive close to the good slurry of OCC waste paper
Charge demand, from without influenceing paper machine wet end charge balance, does not influence wet-end chemicals such as drying strengthening agent, retention and drainage aid agent to make
With effect, approach flow drainage and formation is not influenceed.
Mixed slurry dirt count：
Propelling worm is squeezed out to the mixed slurry feeding heat partition system come to be handled, through tearing up spiral, conveying spiral shell
Rotation, heating coil enter heat partition main frame and carry out dirt count；
In mixed slurry dirt count step, steam is passed through when mixed slurry is by heating coil, by mixing slurry material temperature
Degree brings up to 90~105 DEG C, and the mixed slurry after heating enters heat partition main frame, the heat dispersion machine Moving plate of rotation and quiet disk between cog
Gap is 0.1~0.3mm.
Under high-temperature and high concentration, by the slurry of Moving plate and quiet disk between cog by high shear force, mechanical friction, impulsive force,
Interfibrous frictional force and fiber such as mutually rub at the active force, and deinking slag, the ink particle in ONP slurries, sicker are from fiber
On strip down, ink particle diameter granular, particle diameter be less than 50 μm, ink particle, sicker are dispersed in paper pulp after granular
In.By the slurry of dirt count, stock quality is improved, and mitigates paper-machine screen splenium, drying portion ink, Stickies deposit barrier
Hinder, do not result in paper machine forming net paste net or squeezing felt-cloth blocks and influences paper machine normally to manufacture paper with pulp, paper is not in big oil
Ink dot influences presentation quality.
Mixed slurry is with slurry to manufacture paper with pulp：
It is former as OCC slurries paper tube with slurry of manufacturing paper with pulp after diluting, storing, thicken by the mixed slurry after dirt count
Paper, grey board, kraft paperboard, fluting medium.Mixed slurry is with slurry as OCC accepted stocks after diluting, storing, thicken
Manufacture paper with pulp paper tube base paper, grey board, kraft paperboard, fluting medium, paper machine is manufactured paper with pulp normally, reaches that quality will into each quality index of paper
Ask.
The present embodiment is grasped to deinking slag character by studying, and is combined using key process technology, changes the property of deinking slag
Shape, performance, develop deinking slag voluntarily using OCC mixed slurry production methods are produced, the OCC mixed slurries produced can be used for
With grey board, paper tube base paper, fluting medium, coated manila is copied, the whole high efficient resourcings of paper mill deinking slag are realized voluntarily
Processing.Each processing step closing, harmless processing, reach and voluntarily utilize target in accordance with national legislation, the whole recyclings of deinking slag.It is de-
Ink residue whole Seal treatment is voluntarily utilized, and is solved the problems, such as the complete environment protection treating of paper mill deinking slag, is met national legislation.Save de-
Ink residue environment protection treating expense, saves paper production cost, remarkable in economical benefits.Ton paper can be produced per year with addition of 60~70kg deinking slags
350000 tons of lap machines, can 2.5 ten thousand tons of deinking slags of environmental protection treatment deinking slag, 30,000 tons of wastepaper as raw material of year saving.
Embodiment two
The difference of environmentally friendly deinking slag disclosed by the present embodiment and OCC slurry process for producing method and embodiment one is,
Deinking slag is mixed in concentration step with OCC slurries, and deinking slag mixes progress dehydration concentration with OCC waste paper pulps, and wherein deinking slag is accounted for
The accounting 20% of gross weight, OCC waste paper pulps account for the accounting 80% of gross weight；
Embodiment three
The difference of environmentally friendly deinking slag disclosed by the present embodiment and OCC slurry process for producing method and embodiment one is,
Deinking slag is mixed in concentration step with OCC slurries, and deinking slag mixes progress dehydration concentration with OCC waste paper pulps, and wherein deinking slag is accounted for
The accounting 30% of gross weight, OCC waste paper pulps account for the accounting 70% of gross weight；
Example IV
The difference of environmentally friendly deinking slag disclosed by the present embodiment and OCC slurry process for producing method and embodiment one is,
Deinking slag is mixed in concentration step with OCC slurries, and the mass concentration percentage of deinking slag is 4%；
Embodiment five
The difference of environmentally friendly deinking slag disclosed by the present embodiment and OCC slurry process for producing method and embodiment one is,
Deinking slag is mixed in concentration step with OCC slurries, and the mass concentration percentage of deinking slag is 8%；
Embodiment six
The difference of environmentally friendly deinking slag disclosed by the present embodiment and OCC slurry process for producing method and embodiment one is,
Deinking slag is mixed in concentration step with OCC slurries, and the mass concentration percentage of OCC waste paper pulps is 1.2%；
Embodiment seven
The difference of environmentally friendly deinking slag disclosed by the present embodiment and OCC slurry process for producing method and embodiment one is,
Deinking slag is mixed in concentration step with OCC slurries, and the mass concentration percentage of OCC waste paper pulps is 1.5%；
Embodiment eight
The difference of environmentally friendly deinking slag disclosed by the present embodiment and OCC slurry process for producing method and embodiment one is,
Deinking slag is mixed in concentration step with OCC slurries, forms the mixed slurry that mass concentration percentage is 1.2%；
Embodiment nine
The difference of environmentally friendly deinking slag disclosed by the present embodiment and OCC slurry process for producing method and embodiment one is,
Deinking slag is mixed in concentration step with OCC slurries, forms the mixed slurry that mass concentration percentage is 1.5%；
Embodiment ten
The difference of environmentally friendly deinking slag disclosed by the present embodiment and OCC slurry process for producing method and embodiment one is, OCC
The mass concentration percentage of many disk thickener exit mixed slurries of line is 7%；
Embodiment 11
The difference of environmentally friendly deinking slag disclosed by the present embodiment and OCC slurry process for producing method and embodiment one is, OCC
The mass concentration percentage of many disk thickener exit mixed slurries of line is 12%；
Prior art is distinguished, the whole Seal treatments of deinking slag of the present invention are voluntarily utilized, and solve the complete ring of paper mill deinking slag
Protect governing problem；Deinking slag environment protection treating expense is saved, paper production cost, remarkable in economical benefits is saved.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that process, method, article or terminal device including a series of key elements not only include those
Key element, but also other key elements including being not expressly set out, or also include being this process, method, article or end
The intrinsic key element of end equipment.In the absence of more restrictions, limited by sentence " including ... " or " including ... "
Key element, it is not excluded that also there is other key element in the process including the key element, method, article or terminal device.This
Outside, herein, " being more than ", " being less than ", " exceeding " etc. are interpreted as not including this number；" more than ", " following ", " within " etc. understand
It is to include this number.
Although the various embodiments described above are described, those skilled in the art once know basic wound
The property made concept, then can make other change and modification to these embodiments, so embodiments of the invention are the foregoing is only,
Not thereby the scope of patent protection of the present invention, equivalent structure or equivalent process that every utilization description of the invention is made are limited
Conversion, or is directly or indirectly used in other related technical fields, be similarly included in the present invention scope of patent protection it
It is interior.
Claims (6)
1. a kind of environmentally friendly deinking slag starches process for producing method with OCC, it is characterised in that comprise the following steps：
Deinking slag is collected：
By the deinking slag produced in Deinking Pulp line flotation cell, froth breaking groove equipment is by current gravity or is pumped into the collection of deinking slag
Groove；
Flocculation pretreatment：
The deinking slag gathered is sent into medicine reactor, addition flocculant is flocculated；
Concentration pretreatment：
It will add in the deinking slag feeding thickener after flocculant, concentrated, the moisture content of deinking slag passes through thickener filter screen
Eyelet is removed；
Pressafiner is squeezed：
By in the deinking slag feeding pressafiner after concentration, extrusion dehydration is carried out by pressafiner；
Deinking slag dilutes：
It is white toward dilution hopper addition OCC Pulping Lines by the deinking slag after squeezing from propelling worm discharge port falls into dilution hopper
Water is diluted, by the mass concentration percentage dilution of deinking slag to 4~8%；
Deinking slag is stored：
Deinking slag after dilution is transferred into groove by entering deinking slag through chute, deinking slag is transferred into the deinking slag in groove passes through pump
It is sent to workshop intermediate pool or middle storage slurry tower is stored, storage slurry tower in centre transfers groove by shifting pump and deinking slag and is connected；
Deinking slag mixes concentration with OCC slurries：
Deinking slag in the intermediate pool of workshop is delivered in many disk thickeners of OCC lines, progress dehydration is mixed with OCC waste paper pulps dense
Contracting, wherein deinking slag accounts for the accounting 20~30% of gross weight, and OCC waste paper pulps account for the accounting 70~80% of gross weight, deinking slag
Mass concentration percentage be that the mass concentration percentage of 4~8%, OCC waste paper pulps is 1.2~1.5%, form mass concentration
Percentage carries out dehydration concentration, many disk thickeners of OCC lines for 1.2~1.5% mixed slurry in many disk thickeners of OCC lines
The mass concentration percentage of exit mixed slurry is 7~12%；
Mixed slurry propelling worm is squeezed：
The mixed slurry of many disk thickener discharge port concentration 7~12% of OCC lines is sent into inclined screw, will be mixed by inclined screw
Slurry feeding propelling worm is squeezed；
Mixed slurry dirt count：
Propelling worm is squeezed out to the mixed slurry feeding heat partition system come to be handled, through tearing up spiral, conveyor screw, adding
Heat is threaded into heat partition main frame and carries out dirt count；
Mixed slurry is with slurry to manufacture paper with pulp：
By the mixed slurry after dirt count, after diluting, storing, thicken, as OCC slurries paper tube base paper with slurry of manufacturing paper with pulp,
Grey board, kraft paperboard, fluting medium.
2. environmentally friendly deinking slag according to claim 1 starches process for producing method with OCC, it is characterised in that：Received in deinking slag
Collect in step, deinking slag collecting tank uses Liquid level, send the flow of the deinking slag of next procedure processing to be adjusted automatically according to liquid level
Section.
3. environmentally friendly deinking slag according to claim 1 starches process for producing method with OCC, it is characterised in that：At the pre- place of flocculation
Manage in step, flocculant is PAMC family macromolecule polymer, and the addition of flocculant is 10~20ppm.
4. environmentally friendly deinking slag according to claim 1 starches process for producing method with OCC, it is characterised in that：In the storage of deinking slag
Deposit in step, transfer groove, workshop intermediate pool, middle storage are starched in tower and be equipped with paper pulp agitator, and deinking slag is continuously stirred.
5. environmentally friendly deinking slag according to claim 1 starches process for producing method with OCC, it is characterised in that：Deinking slag it is defeated
Pipeline is used during sending, pipeline is closed conveying, flowmeter and concentration regulation system are set on pipeline
Its concentration is adjusted system.
6. environmentally friendly deinking slag according to claim 1 starches process for producing method with OCC, it is characterised in that：In mixed slurry
In dirt count step, steam is passed through when mixed slurry is by heating coil, mixed slurry temperature is brought up to 90~105
DEG C, mixed slurry after heating enters heat partition main frame, and the heat dispersion machine Moving plate of rotation and quiet disk inter-lobe clearance be 0.1~
0.3mm。
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| CN108505378A (en) * | 2018-05-28 | 2018-09-07 | 玖龙纸业（太仓）有限公司 | A kind of processing system and its processing method reducing gluing object |
| CN108755239A (en) * | 2018-05-25 | 2018-11-06 | 南京林业大学 | Improve the production method of paper tube base paper interfacial bonding strength |
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| CN107119484B (en) | 2018-03-09 |
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