CN110331611A - A kind of waste paper pulp-making fine screen tailings treatment process - Google Patents
A kind of waste paper pulp-making fine screen tailings treatment process Download PDFInfo
- Publication number
- CN110331611A CN110331611A CN201910725152.0A CN201910725152A CN110331611A CN 110331611 A CN110331611 A CN 110331611A CN 201910725152 A CN201910725152 A CN 201910725152A CN 110331611 A CN110331611 A CN 110331611A
- Authority
- CN
- China
- Prior art keywords
- sections
- slurries
- slurry
- section
- good
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
- D21D5/06—Rotary screen-drums
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
- D21D5/16—Cylinders and plates for screens
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/18—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
The present invention relates to pulping and paper-making fields, and in particular to a kind of waste paper pulp-making fine screen tailings treatment process.The following steps are included: waste paper pulp-making tailings is sent into lead-over groove 1 by (1), then pass through one section of fine screen, obtain one section of good slurry and one section of tail slurry, one section of good slurry enters scummer；Dense standpipe 1 in (2) one sections of good slurries processes, one section of tail slurry are sent into two sections of fine screens, obtain two sections of good slurries and two sections of tail slurries；(3) two sections of good slurries return to one section of fine screen；Two sections of tail slurries are sent into latter end fine screen, obtain three sections of good slurries, three sections of tail slurries；(4) three sections of good slurries return to two sections of fine screens；Three sections of tail slurries are sent into lead-over grooves 2, then successively through fluffer, in obtain four sections of good slurries and slag charge after dense standpipe 2, flotation cell processing；(5) four sections of good slurries return to lead-over groove 1 and are handled；Slag charge is sent into reject chute.The present invention can reduce the 10-20% of waste paper pulp-making fine screen workshop section bed drain purge on the basis of guaranteeing slurry quality.
Description
Technical field
The present invention relates to pulping and paper-making fields, and in particular to a kind of waste paper pulp-making fine screen tailings treatment process.
Background technique
Since the paper of production and the kind of cardboard are different, the technique of waste paper pulp-making requires to be different, but to sum up, useless
Sizing process made of paper mainly includes the processes such as repulping of waste paper, purification, screening, concentration, dispersion.Screening process divides scalping workshop section and essence again
Riddler's section, scalping workshop section only have a small amount of recyclable fiber to discharge, but manufacture paper with pulp the requirement of workshop section's technique to meet paper machine, fine screen workshop section
Recyclable fiber amount accounts for the 0.8-1.5% for the treatment of capacity in deslagging, accounts for the cost 1-2% that manufactures paper with pulp.Pressurized screen is as waste paper pulp-making fine screen
Essential equipment in workshop section is commonly used concatenated mode and is arranged to reduce recyclable fiber loss.By latter end in common process
The direct outlet of pressurized screen tailings not only causes wastage of material, while causing difficulty to the processing of subsequent tailings.
For example, Chinese invention patent application CN 106283809A discloses a kind of OCC line slurry high efficiente callback production method
Collected including low dense tailings and conveying, fine screen tailings are collected and conveying, the total deslagging of trench plain boiled water is collected and conveying, tailings concentration,
Tailings defibrination, tailings mixed diluting thicken, in dense desanding, fine screen, polydisc concentration, defibrination and storage slurry, the total deslagging of trench plain boiled water
It collects and conveys.Specifically, the total trench plain boiled water of OCC line board is recycled by the slanted screen of sewage treatment plant, the slag of recycling
Slurry after thickening be pumped into slurry handle line；It is compared with the prior art, the present invention is collected by tailings, is concentrated, regrinded, is dilute
Release, desanding, fine screen, concentration, the critical process development and application such as refining and key equipment improve, to the fiber contained in tailings and can be with
Reuse fiber fines, filler carry out high efficiente callback, this slurry processing line treating capacity is big, and yield is high.It is daily using the production technology
Slurry 300t is recycled, slurry yield is about 60%, and tailings is main by recycling power transmission factory burning disposal because being difficult to separate again, is caused
The waste of raw material.
Chinese invention patent application CN 108914672A discloses a kind of efficient recycling production technology of OCC slurry, belongs to
Pulping and paper-making production technical field, including the collection of total trench tailings, scalping section scalping combination, concentration, defibrination, mixing, dilution, remove
Sand, fine screen, concentration, refining, storage slurry, dexter feeder, it is main to be combined by newly-increased with broken again and screening function screening stage scalping,
Not only it effectively prevent the impurity such as plastics, foam and sandstone to set mill used in subsequent treatment process, low dense desanding and fine screen etc.
It is standby to result in blockage or damage, while increasing high-power fiberizer one newly, the fiber in tailings is sufficiently discongested, is levigate and preliminary
Wire-dividing broom purification handles tailings amount 500t/d day, and recycling slurry yield 400t/d, the rate of recovery is up to 80%, than traditional recovery process
60% rate of recovery has larger improvement.Therefore, selecting the production technology of the technical program to carry out efficient recycling to OCC slurry has
Great economy and environmental benefit.But the method is smaller for the extent of exfoliation of the impurity such as gluing object and fiber, so that part is fine
Dimension is lost, and causes waste to a certain extent.
Chinese invention patent application CN 109208372A discloses a kind of recovery method of waste paper pulp-making process fine screen slag,
Belong to pulping and paper-making or environmental area.Specifically comprise the following steps: the fine screen slag of waste paper pulping production line after temperature adjustment thickens,
Under low dense room temperature, the gluing object being adhered on fiber in fine screen slag is removed using deflaker, makes the glue in conjunction with fiber
Glutinous object is changed into free state gluing object and is scattered in slurries；It is aided with microbubble air bearing again, it is free using the lipophilicity of gluing object
Gluing object can adsorb microbubble and float, and be exhausted from system as dross, and the fiber in fine screen slag is purified recycling；Eliminate essence
Screening reject is as problem of environmental pollution brought by solid waste.The method shells the gluing object being adhered on fiber in fine screen slag
From make more fibers can with Resource recovery, but the method active line waste residue amount processing it is small, production efficiency is lower.
It is desirable to which one kind on the basis of guaranteeing slurry quality, reduces the bed drain purge of waste paper pulp-making, while also there is life
Produce the advantages that high-efficient, environmentally protective, resource recovery is higher.
Summary of the invention
The problems such as bed drain purge in order to solve waste paper pulp-making in the prior art is big, low efficiency, the wasting of resources, the present invention provides
A kind of waste paper pulp-making fine screen tailings treatment process, comprising the following steps:
(1) waste paper pulp-making tailings is sent into lead-over groove 1, then passes through one section of fine screen, obtain one section of good slurry and one section of tail slurry,
One section of good slurry enters scummer further progress and is screened and purified；
Dense standpipe 1 in (2) one sections of good slurries processes, one section of tail slurry are sent into two sections of fine screens, obtain two sections of good slurries and two sections of tail slurries；
(3) two sections of good slurries return to one section of fine screen and continue with；Two sections of tail slurries are sent into latter end fine screen, obtain three sections of good slurries, three
Section tail slurry；
(4) three sections of good slurries return to two sections of fine screens and continue with；Three sections of tail slurries are sent into lead-over groove 2 and are diluted with water, then successively
Through fluffer, in dense standpipe 2, flotation cell processing after obtain four sections of good slurries and slag charge；
(5) four sections of good slurries return to lead-over groove 1 and are handled；Slag charge is sent into reject chute, is then fed into sludge squeezer
It is handled, deslagging is sent into power plant and is burned.
Further, in the step (1), pressurized screen screen slot is 0.1-0.15mm in one section of fine screen.
Further, in the step (1), fine screen concentration for the treatment of is often 1-3%, inlet pipe pressure and pulp pipe pressure
Pressure difference 10-50kPa.
Further, in the step (1), scummer is 0.8%-1.2% into concentration is starched, into slurry pressure 200-
350kPa。
Scummer: selecting low dense scummer, and in this scummer, concentration is the slurry of 0.8%-1.2%, with 200-
350kPa's enters in scummer cylinder into slurry pressure from tangential direction, and when the movement of slurry downward spiral, heavy impurity is by centrifugal force
Effect be discharged downwards along inner wall, good pulp fibres because automatic vortex middle section flow velocity maximum, therefore center hub position to
Upper outflow.Import and export pressure difference keeps 10-35kPa, and ash-retention efficiency is 10-20% by weight.
Fine screen is commonly used to refer to screen slot in the pressurized screen of 0.08-0.8mm.To improve fiber recovery, different screen slots are commonly used
Fine screen is used in series, and the tailings of one section of fine screen is handled by two sections of fine screens, and the tailings of two sections of fine screens is handled by three sections of fine screens, last
Section fine screen is referred to as latter end fine screen.One section of fine screen ash-retention efficiency 10-15%, is used in series through excessive platform fine screen, fine screen workshop section deslagging
Rate 0.5-1.5%.
In dense standpipe 1: play a part of to adjust concentration: by the pulp dilution of fine screen section 2-4% to 0.8-1.2%, with guarantee
Into slurry concentration within the scope of scummer working concentration.
Further, in the step (2), pressurized screen screen slot is 0.1-0.15mm in two sections of fine screens.
Further, in the step (2), pressurized screen screen slot is 0.1mm in two sections of fine screens.
Further, in the step (2), in dense standpipe into slurry concentration be 2-4%, pulp concentration be 0.8-1.2%.
Further, in the step (3), pressurized screen screen slot is 0.2-0.3mm in latter end fine screen.
Further, in the step (3), pressurized screen screen slot is 0.3mm in latter end fine screen.
Further, in the step (4), fluffer revolving speed is 2500-5500r/min.
Further, in the step (4), it is 2%-5% that three sections of tail slurries, which are sent into lead-over groove 2 and are diluted with water to concentration,.
Further, in the step (4), in dense standpipe into slurry concentration be 1.2-2.5%, pulp concentration be 1.0-
1.5%.
Further, in the step (4), deinking agent is added in flotation cell and is handled.
Fluffer: using deflaker, and processing capacity 5-10t/d configures separate unit or more according to production capacity.High frequency
It discongests equipment and passes through the Moving plate high speed rotation of multiple tooth type (revolving speed requires 2500-5500r/min, into slurry concentration: 2%-4%), slurry
The repeated multiple times shock between Moving plate and quiet disk is expected, so that the impurity such as gluing object, dust and fiber be made to disperse.Due between sound disk
There is gap appropriate, fiber only makees simple dispersion, not cut staple；
Flotation cell: flotation cell is commonly used to the processing of Deinking Pulp slurry, utilizes the ink particle in air bearing principle removing secondary stock
Son, to obtain the paper pulp of better quality: slurry is pumped to first unit flotation cell, is sucked through inflation element with venturi principle
Air mixed with slurry.Bubble rises to liquid level from flotation trench bottom with impurity particles such as gluing object, dust, climbs over weir plate
Mouth enters tailings collecting tank.Good slurry, which is pumped up from slot bottom to second unit flotation cell, carries out flotation slagging-off, according to process lot size
Multiple flotation cells are selected to carry out tandem compound.Day processing slurry oven-dry weight reaches 30t/d, therefore can be in the less item for increasing energy consumption
The impurity such as flotation cell removing gluing object, dust are preferably utilized under part；
In dense standpipe 2: play a part of adjust concentration, by fluffer processing concentration 1.2-2.5% pulp dilution to expire
The suitable concentration of the 1.0-1.5% of sufficient flotation conditions；
Deinking agent is pumped into electric metering pump in flotation cell, is commercially available deinking agent, it is public with Jiangsu Xinhua Newspapers Media
It takes charge of for TM-8.
Change the type selecting of fine screen workshop section pressurized screen screen slot: in the present invention, setting 0.20- for latter end pressurized screen screen slot
0.30mm, not only can be reduced the outer discharge capacity of latter end pressurized screen tailings, while be retained in the impurity such as gluing object, dust are as much as possible
In good slurry, so as to subsequent handling centralized processing；One section of fine screen pressurized screen screen slot is selected as 0.10-0.15mm, is conducive to improve
The good slurry slurry quality of pressurized screen guarantees fine screen workshop section clean-up effect.It is pressed for each section before reducing the latter end of fine screen workshop section in type selecting
Power sieves screen slot, increases bed drain purge to be transmitted to latter end pressurized screen for the impurity such as gluing object, dust are as much as possible；In type selecting
Amplify latter end pressurized screen screen slot, reduce tailings flow to reduce fine screen workshop section bed drain purge, while by impurity such as gluing object, dust
As much as possible be transmitted to is discongested and floatation equipment.
Fluffer and flotation cell equipment are added, wherein the tailings of flotation cell is sent into slip house sludge pressing spiral and is pressed
Squeezing processing: the good slurry of latter end pressurized screen is transported to fluffer by stock pump through lead-over groove and on-line dilution water, discongests equipment using high frequency
Carry out the removing and size degradation with fiber such as gluing object, dust；By control flotation cell flotation time and deslagging time come the row of control
Slag rate, treated, and good slurry returns to one section of pressurized screen stock pump entrance of fine screen workshop section, and tailings is sent into power plant after squeezing and carries out sludge
The processing of the environment-friendly types such as burning.
Equipment is discongested by impurity and fiber separations such as gluing object, dust in latter end pressurized screen tailings using high frequency: high frequency
Discongest Moving plate high speed rotation of the equipment by multiple tooth type, slurry repeated multiple times shock between Moving plate and quiet disk, thus make gluing object,
The impurity such as dust and fiber disperse.Due to there is gap appropriate between sound disk, fiber only makees simple dispersion, does not cut off fibre
Dimension.
Handle non-deinked stock using flotation cell: flotation cell is commonly used to the processing of Deinking Pulp slurry, de- using air bearing principle
Except the ink particle in secondary stock, obtain the paper pulp of better quality: slurry is pumped to first unit flotation cell, through inflation element with
Venturi principle sucking air is mixed with slurry.Bubble rises to impurity particles such as gluing object, dust from flotation trench bottom
Liquid level climbs over weir plate mouth and enters tailings collecting tank.Good slurry, which is pumped up from slot bottom to second unit flotation cell, carries out flotation slagging-off, root
Multiple flotation cells are selected to carry out tandem compound according to process lot size.The present invention is directed to the non-deinked stock of boxboard production line, because
Slurry gluing object, dust etc. after the processing of the preceding paragraph process are substantially reduced with fiber bonding strength, and day handles slurry oven-dry weight
Reach 30t/d, therefore can preferably utilize the impurity such as flotation cell removing gluing object, dust under conditions of less increase energy consumption.
The slag charge of flotation cell discharge is squeezed by sludge pressing equipment, is burned using power plant's sludge incineration technology
Processing is converted into thermal energy, and drainage returns waste paper pulp-making line pulper and carries out reuse realization slag charge zero-emission.
It is compared with the prior art, the beneficial effects of the present invention are: the present invention can be reduced on the basis of guaranteeing slurry quality
The 10-20% of waste paper pulp-making fine screen workshop section bed drain purge.The present invention is rationally controlled into slurry concentration, so that machine processing is high-efficient, row
Slag rate is small.
Specific embodiment
The invention will now be further described with reference to specific embodiments, the advantages and features of the present invention will be with description and
It is apparent, but these examples are merely exemplary, it is not intended to limit the scope of the present invention in any way.Those skilled in the art
Member it should be understood that without departing from the spirit and scope of the invention can details to technical solution of the present invention and form into
Row modifications or substitutions, but these modifications and replacement are fallen within the protection scope of the present invention.
Embodiment 1
(1) waste paper pulp-making tailings is sent into lead-over groove 1, adjustment concentration is 1%, is then 0.1mm by pressurized screen screen slot
One section of fine screen, obtain one section it is good slurry and one section of tail slurry, one section it is good slurry enter scummer further progress be screened and purified, scummer
It is 0.8% into slurry concentration, is 200kPa into slurry pressure；
Dense standpipe 1 in (2) one sections of good slurries processes, wherein being 2% into slurry concentration, pulp concentration is 0.8%, and one section of tail slurry is sent
Enter two sections of fine screens, screen slot 0.1mm obtains two sections of good slurries and two sections of tail slurries；
(3) two sections of good slurries return to one section of fine screen and continue with；Two sections of tail slurries are sent into latter end fine screen, and screen slot 0.3mm is obtained
Three sections of good slurries, three sections of tail slurries；
(4) three sections of good slurries return to two sections of fine screens and continue with；Three sections of tail slurries feeding lead-over grooves 2 are diluted with water to concentration and are
2%, then successively through fluffer, in dense standpipe 2, flotation cell (in flotation cell plus the company's T M-8 deinking of Jiangsu Xinhua Newspapers Media
Agent) processing after obtain four sections of good slurries and slag charge；Wherein, fluffer revolving speed be 2500r/min, in dense standpipe into slurry concentration be
1.2%, pulp concentration is 1.0%.
(5) four sections of good slurries return to lead-over groove 1 and are handled；Slag charge is sent into reject chute, is then fed into sludge squeezer
It is handled, is then fed into power plant's burning.
Embodiment 2
(1) waste paper pulp-making tailings is sent into lead-over groove 1, adjustment concentration is 3%, is then 0.15mm by pressurized screen screen slot
One section of fine screen, obtain one section it is good slurry and one section of tail slurry, one section it is good slurry enter scummer further progress be screened and purified scummer
It is 1.2% into slurry concentration, is 350kPa into slurry pressure；
Dense standpipe 1 in (2) one sections of good slurries processes, wherein being 4% into slurry concentration, pulp concentration is 1.2%, and one section of tail slurry is sent
Enter two sections of fine screens, screen slot 0.15mm obtains two sections of good slurries and two sections of tail slurries；
(3) two sections of good slurries return to one section of fine screen and continue with；Two sections of tail slurries are sent into latter end fine screen, and screen slot 0.2mm is obtained
Three sections of good slurries, three sections of tail slurries；
(4) three sections of good slurries return to two sections of fine screens and continue with；Three sections of tail slurries feeding lead-over grooves 2 are diluted with water to concentration and are
5%, then successively through fluffer, in obtain four sections of good slurries and slag after dense standpipe 2, flotation cell (in flotation cell plus deinking agent) processing
Material；Wherein, fluffer revolving speed be 5500r/min, in dense standpipe into slurry concentration be 2.5%, pulp concentration be 1.5%.
(5) four sections of good slurries return to lead-over groove 1 and are handled；Slag charge is sent into reject chute, is then fed into sludge squeezer
It is handled, is then fed into power plant's burning.
Embodiment 3
(1) waste paper pulp-making tailings is sent into lead-over groove 1, adjustment concentration is 1%, is then 0.1mm by pressurized screen screen slot
One section of fine screen, obtain one section it is good slurry and one section of tail slurry, one section it is good slurry enter scummer further progress be screened and purified scummer
It is 1% into slurry concentration, is 300kPa into slurry pressure；
Dense standpipe 1 in (2) one sections of good slurries processes, wherein being 3% into slurry concentration, pulp concentration is 0.81%, one section of tail slurry
Two sections of fine screens are sent into, screen slot 0.15mm obtains two sections of good slurries and two sections of tail slurries；
(3) two sections of good slurries return to one section of fine screen and continue with；Two sections of tail slurries are sent into latter end fine screen, and screen slot 0.25mm is obtained
To three sections of good slurries, three sections of tail slurries；
(4) three sections of good slurries return to two sections of fine screens and continue with；Three sections of tail slurries feeding lead-over grooves 2 are diluted with water to concentration and are
4%, then successively through fluffer, in obtain four sections of good slurries and slag after dense standpipe 2, flotation cell (in flotation cell plus deinking agent) processing
Material；Wherein, fluffer revolving speed be 3500r/min, in dense standpipe into slurry concentration be 2%, pulp concentration be 1.2%.
(5) four sections of good slurries return to lead-over groove 1 and are handled；Slag charge is sent into reject chute, is then fed into sludge squeezer
It is handled, is then fed into power plant's burning.
Comparative example 1
Compared with Example 1, (4) (5) step is not included, other steps are all the same.
Comparative example 2
Compared with Example 1, do not include dense standpipe in step (2) and (4), do not adjust concentration, slurry is directly entered
Next step.
Comparative example 3
Compared with Example 1, pressurized screen screen slot is 0.8mm in one section of fine screen.
Comparative example 4
Compared with Example 1, the screen slot of end fine screen is 0.1mm.
Effect example 1
Waste paper production line is using OCC waste paper as main material production packaging box paperboard, treating capacity 150t/d.Contain before processing
There are a large amount of fibre bundle, dust, gluing object etc., wherein gluing object plane product is greater than 0.6m2Content is generally higher than 10000mm2/kg.Through
The reasonable selection of fine screen workshop section screen slot is crossed, the impurity 80% in slurry concentrates in end fine screen tailings.
Integration test result is it is found that the application has following advantages: the present invention can subtract on the basis of guaranteeing slurry quality
Few waste paper pulp-making fine screen workshop section bed drain purge.The present invention is rationally controlled into slurry concentration, so that machine processing is high-efficient, ash-retention efficiency is small.
The technical means disclosed in the embodiments of the present invention is not limited only to above-mentioned disclosed technological means, further includes by the above skill
Technical solution composed by art feature any combination.The foregoing is a specific embodiment of the present invention, it is noted that for this
For the those of ordinary skill of technical field, without departing from the principle of the present invention, it can also make several improvements and repair
Decorations, these also will be regarded as protection scope of the present invention.
Claims (10)
1. a kind of waste paper pulp-making fine screen tailings treatment process, which comprises the following steps:
(1) by waste paper pulp-making tailings be sent into lead-over groove 1, then pass through one section of fine screen, obtain one section it is good slurry and one section of tail slurry, one section
Good slurry enters scummer workshop section further progress and is screened and purified；
Dense standpipe 1 in (2) one sections of good slurries processes, one section of tail slurry are sent into two sections of fine screens, obtain two sections of good slurries and two sections of tail slurries；
(3) two sections of good slurries return to one section of fine screen and continue with；Two sections of tail slurries are sent into latter end fine screen, obtain three sections of good slurries and three sections of tails
Slurry；
(4) three sections of good slurries return to two sections of fine screens and continue with；Three sections of tail slurries are sent into lead-over groove 2 and are diluted with water, then successively through dredging
Solution machine, in dense standpipe 2, flotation cell processing after obtain four sections of good slurries and slag charge；
(5) four sections of good slurries return to lead-over groove 1 and are handled；Slag charge is sent into reject chute, is then fed into sludge squeezer progress
Processing, deslagging are sent into power plant and are burned.
2. treatment process according to claim 1, in the step (1), pressurized screen screen slot is 0.1- in one section of fine screen
0.15mm。
3. treatment process according to claim 1, in the step (1), one section of fine screen concentration for the treatment of is 1-3%, into slurry
The pressure difference 10-50kPa of pipe pressure and pulp pipe pressure.
4. treatment process according to claim 1, in the step (2), pressurized screen screen slot is 0.1- in two sections of fine screens
0.15mm。
5. treatment process according to claim 1, in the step (2), in dense standpipe 1 into slurry concentration be 2-4%, pulp
Concentration is 0.8-1.2%.
6. treatment process according to claim 1, in the step (3), pressurized screen screen slot is 0.2- in latter end fine screen
0.3mm。
7. treatment process according to claim 1, in the step (4), fluffer revolving speed is 2500-5500r/min, into
Starch concentration 2%-4%.
8. treatment process according to claim 1, in the step (4), three sections of tail slurries are sent into lead-over grooves 2 and are diluted with water to
Concentration is 2%-5%.
9. treatment process according to claim 1, in the step (4), in dense standpipe 2 into slurry concentration be 1.2-2.5%,
Pulp concentration is 1.0-1.5%.
10. treatment process according to claim 1, in the step (4), added at deinking agent in flotation cell
Reason.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910725152.0A CN110331611A (en) | 2019-08-07 | 2019-08-07 | A kind of waste paper pulp-making fine screen tailings treatment process |
| PCT/CN2019/115820 WO2021022693A1 (en) | 2019-08-07 | 2019-11-05 | Waste paper pulping and fine sieve tailing treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910725152.0A CN110331611A (en) | 2019-08-07 | 2019-08-07 | A kind of waste paper pulp-making fine screen tailings treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110331611A true CN110331611A (en) | 2019-10-15 |
Family
ID=68148795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910725152.0A Pending CN110331611A (en) | 2019-08-07 | 2019-08-07 | A kind of waste paper pulp-making fine screen tailings treatment process |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110331611A (en) |
| WO (1) | WO2021022693A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021022693A1 (en) * | 2019-08-07 | 2021-02-11 | 山鹰国际控股股份公司 | Waste paper pulping and fine sieve tailing treatment process |
| CN112921691A (en) * | 2021-01-20 | 2021-06-08 | 山鹰国际控股股份公司 | Treatment process of waste pulp waste residue of waste corrugated case paperboard waste paper |
| CN112981998A (en) * | 2021-04-20 | 2021-06-18 | 东莞市金田纸业有限公司 | Wood chip pretreatment method for grey board production and pulping method |
| CN114875703A (en) * | 2022-04-12 | 2022-08-09 | 山鹰国际控股股份公司 | Pulping system and method for reducing stickies in pulping process |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113215849B (en) * | 2021-05-11 | 2022-09-06 | 于都县正亿纸品纸业有限公司 | Tailings treatment device of pulping slag remover |
| CN114293392B (en) * | 2021-12-31 | 2024-04-19 | 东莞理文造纸厂有限公司 | Production process of high-strength environment-friendly fine dried noodle cardboard paper |
| CN117127425B (en) * | 2023-09-22 | 2024-09-24 | 安德里茨（中国）有限公司 | Coarse screening system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1403422A1 (en) * | 2002-09-25 | 2004-03-31 | Voith Paper Patent GmbH | Process for treating waste paper |
| CN102493247A (en) * | 2011-12-14 | 2012-06-13 | 中冶美利浆纸有限公司 | Application of book paper to wastepaper deinking instead of office wastepaper |
| CN105648826A (en) * | 2016-03-17 | 2016-06-08 | 安徽山鹰纸业股份有限公司 | Low-weight corrugated paper and preparation method thereof |
| CN106592315A (en) * | 2017-01-24 | 2017-04-26 | 东莞玖龙纸业有限公司 | Pulp residue treating and recycling system |
| CN107083718A (en) * | 2017-06-20 | 2017-08-22 | 台州森林造纸有限公司 | A kind of boxboard paper pulp molding technique |
| CN107268311A (en) * | 2017-06-20 | 2017-10-20 | 台州森林造纸有限公司 | A kind of use waste paper produces the production technology of boxboard printing layer |
| CN109208372A (en) * | 2018-10-26 | 2019-01-15 | 中国制浆造纸研究院有限公司 | A kind of recovery method of waste paper pulp-making process fine screen slag |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5469695B2 (en) * | 2012-03-15 | 2014-04-16 | 日本車輌製造株式会社 | Disaggregation filtration system |
| CN208072077U (en) * | 2017-10-20 | 2018-11-09 | 盘鹏 | A kind of cyclic processing device of waste sludge from paper mill |
| CN109137594B (en) * | 2018-08-15 | 2020-10-02 | 联盛纸业（龙海）有限公司 | Recycling process of waste paper pulping tailings |
| CN110331611A (en) * | 2019-08-07 | 2019-10-15 | 山鹰国际控股股份公司 | A kind of waste paper pulp-making fine screen tailings treatment process |
-
2019
- 2019-08-07 CN CN201910725152.0A patent/CN110331611A/en active Pending
- 2019-11-05 WO PCT/CN2019/115820 patent/WO2021022693A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1403422A1 (en) * | 2002-09-25 | 2004-03-31 | Voith Paper Patent GmbH | Process for treating waste paper |
| CN102493247A (en) * | 2011-12-14 | 2012-06-13 | 中冶美利浆纸有限公司 | Application of book paper to wastepaper deinking instead of office wastepaper |
| CN105648826A (en) * | 2016-03-17 | 2016-06-08 | 安徽山鹰纸业股份有限公司 | Low-weight corrugated paper and preparation method thereof |
| CN106592315A (en) * | 2017-01-24 | 2017-04-26 | 东莞玖龙纸业有限公司 | Pulp residue treating and recycling system |
| CN107083718A (en) * | 2017-06-20 | 2017-08-22 | 台州森林造纸有限公司 | A kind of boxboard paper pulp molding technique |
| CN107268311A (en) * | 2017-06-20 | 2017-10-20 | 台州森林造纸有限公司 | A kind of use waste paper produces the production technology of boxboard printing layer |
| CN109208372A (en) * | 2018-10-26 | 2019-01-15 | 中国制浆造纸研究院有限公司 | A kind of recovery method of waste paper pulp-making process fine screen slag |
Non-Patent Citations (1)
| Title |
|---|
| 美国TBC公司: "适合亚洲的小型纸厂——美国现有以二次纤维为原料的包装纸厂剖析", 《国际造纸》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021022693A1 (en) * | 2019-08-07 | 2021-02-11 | 山鹰国际控股股份公司 | Waste paper pulping and fine sieve tailing treatment process |
| CN112921691A (en) * | 2021-01-20 | 2021-06-08 | 山鹰国际控股股份公司 | Treatment process of waste pulp waste residue of waste corrugated case paperboard waste paper |
| CN112981998A (en) * | 2021-04-20 | 2021-06-18 | 东莞市金田纸业有限公司 | Wood chip pretreatment method for grey board production and pulping method |
| CN114875703A (en) * | 2022-04-12 | 2022-08-09 | 山鹰国际控股股份公司 | Pulping system and method for reducing stickies in pulping process |
| CN114875703B (en) * | 2022-04-12 | 2024-09-27 | 山鹰国际控股股份公司 | Pulping system and method for reducing stickies in pulping process |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021022693A1 (en) | 2021-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110331611A (en) | A kind of waste paper pulp-making fine screen tailings treatment process | |
| CN102677515B (en) | Process for preparing recovered pulp with high whiteness and high cleanliness | |
| CN102041750A (en) | Manufacture process of all waste paper dried noodle cardboard paper | |
| CN108914672B (en) | OCC slag slurry efficient recycling production process | |
| CN108486937B (en) | Cardboard paper pulping system | |
| CN110904709A (en) | Production method of high-whiteness waste paper deinking and bleaching paper pulp | |
| US7294226B2 (en) | Method of removing high density stickies from secondary papermaking fibers | |
| CN212247650U (en) | Paper pulp tailings recovery system | |
| CN106592315A (en) | Pulp residue treating and recycling system | |
| CN101802298B (en) | Apparatus and method for manufacturing fibre mass suspension | |
| CN114293392B (en) | Production process of high-strength environment-friendly fine dried noodle cardboard paper | |
| US4272315A (en) | Secondary fiber system | |
| CN207159679U (en) | A kind of wastepaper is classified slurrying production system | |
| CN106812007A (en) | A kind of technique that good fiber quality is extracted from reclaimed waste paper | |
| CN110656528B (en) | Treatment system and treatment method for recycling deinked pulp slag | |
| CN216947631U (en) | Pulping, pulp distribution and flow conveying system for corrugated paper | |
| CN107237193B (en) | A method of waste paper pulp-making is squeezed out using screw machine | |
| CN109208372A (en) | A kind of recovery method of waste paper pulp-making process fine screen slag | |
| CN206298780U (en) | Slurry recycle device in paper technology | |
| CA1098353A (en) | Method and apparatus for recovering paper fiber from waste paper containing materials | |
| JP5861910B2 (en) | Method for producing waste paper deinked pulp | |
| CN210975359U (en) | Deinking pulp slag recycle's processing system | |
| CN100478518C (en) | Method of preparing pulp by deinking ONP/OMG mixed wastepaper blended with paper making white water | |
| CN207091817U (en) | A kind of process units of coated duplex board with grey back and Cultural Paper | |
| CN112726268A (en) | Pulping process of coated grey-bottom white board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191015 |
|
| RJ01 | Rejection of invention patent application after publication |