CN103790064B - Secondary stock fine-screening system - Google Patents
Secondary stock fine-screening system Download PDFInfo
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- CN103790064B CN103790064B CN201410059039.0A CN201410059039A CN103790064B CN 103790064 B CN103790064 B CN 103790064B CN 201410059039 A CN201410059039 A CN 201410059039A CN 103790064 B CN103790064 B CN 103790064B
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- 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
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Abstract
The invention discloses a kind of secondary stock fine-screening system, including at least two fine screen devices being sequentially connected by delivery pipe, each fine screen device is respectively provided with input, plasma discharge end and deslagging end, input positioned at the fine screen device of foremost is connected with intake line, between two adjacent fine screen devices, positioned at the input of the deslagging end of fine screen device above fine screen device later by described delivery pipe connection position；The plasma discharge end of an at least fine screen device is connected by pipeline with the input of the fine screen device before this fine screen device；Described intake line and/or delivery pipe are provided with fiberizer.This secondary stock fine-screening system can reduce fiber loss, and can keep higher fiber quality.
Description
Technical field
The present invention relates to a kind of secondary stock fine-screening system.
Background technology
For paper grade pulp, the paper pulp being directly obtained by fiber raw material (typically timber) is referred to as primary
Fiber or primary filament, the paper pulp prepared by waste paper is referred to as recycled fiber or secondary stock.
Fine screen is normally used for fiber recovery aspect to improve the quality of slurry, and its major function is the miscellaneous of removal slurry
Matter, as plastic sheet, sicker and oarse-grained stain.Such sieve is usually arranged to several sections when using, purpose
It is so that fiber loss is preferably minimized.The slurry of final stage generally also comprises a certain amount of fibre bundle, in order to reduce by fibre bundle
The fiber loss bringing, before defiberizing machine is used in final stage fine screen sometimes, this use has been achieved for certain one-tenth
Work(.
But also have a problem using this kind of fluffer, the working clearance of usual fluffer be fixed and due to
The abrasion of abrasive disc during discongesting, discongests effect and gradually reduces, thus leading to fiber loss to increase.
And fibre bundle is not the single factor leading to fiber loss, each section of staged care in whole screening system
Also result in fiber loss.This means that in the slurry after each section of screening, long stapled content constantly increases, and this results in
The increase of follow-up workshop section fiber freeness.
High fiber freeness mean slurry can readily, be quickly dehydrated, so lead to slurry in the screen by
Largely concentrate (concentration that the concentration of slurry compares into slurry increases in back segment step by step).Fortune in order to ensure sieve
Row performance, the entering to starch concentration and must reduce step by step thus being just avoided that the blocking of highly enriched and screen slot of back segment.
Typically especially technical grade waste paper, such as waste and old Concha Arcae boxboard (OCC), there is higher concentration trend, therefore must
The width of follow-up workshop section screen slot must be expanded.Larger seam width result in the loss of fiber certainly, so that screening efficiency is deteriorated, so
Mean that the quality of last pulping also reduces.
Content of the invention
Based on this, the invention reside in overcoming the defect of prior art, provide a kind of secondary stock fine-screening system, this secondary fibre
Dimension fine-screening system can reduce fiber loss, and can keep higher fiber quality.
Its technical scheme is as follows：
A kind of secondary stock fine-screening system, including at least two fine screen devices being sequentially connected by delivery pipe, each essence
Screen device is respectively provided with input, plasma discharge end and deslagging end, and the input positioned at the fine screen device of foremost is connected with input
Pipeline, between two adjacent fine screen devices, positioned at the deslagging end of fine screen device above by described delivery pipe connection position
The input of fine screen device later；Wherein, described fine screen device is set to three, i.e. the first fine screen device, the second fine screen
Device and the 3rd fine screen device, described intake line is connected on the input of the first fine screen device, the row of the first fine screen device
The input that the first transfer pipeline connects the second fine screen device is passed through at slag end, and the deslagging end of the second fine screen device is passed through second and conveyed
Pipeline connects the input of the 3rd fine screen device, and the input of pipeline and the second fine screen device is passed through at the plasma discharge end of the 3rd fine screen device
End is connected, and is provided with the first fiberizer on the first transfer pipeline and the second transfer pipeline, and described intake line is arranged
There is delivery pump.
It is true that according to recycled fiber production line capacity, secondary stock fine-screening system generally arranges 2 to 5 sections of fine screens, that is, sets
Put 2 to 5 fine screen devices, most common is 3 to 4 sections of fine screens of setting.Such fine-screening system is typically part cascade, that is, anticipate
The good slurry that taste the discharge of part fine screen device can be sent back to the input of fine screen device above；Certainly, fine-screening system also may be used
To be whole cascade, this means that only first paragraph fine screen good slurry out can be transported to subsequent processing, and below other
The good slurry that fine screen device is discharged all can be sent back to the input of fine screen device above.It should be noted that it is fine in this two dimension
In dimension fine-screening system, what plasma discharge end was discharged is good slurry, and what deslagging end was discharged is slurry.And in principle, fiberizer can be arranged on
In each section of fine screen device slurry discharge line below.
Wherein in an embodiment, the plasma discharge end of the second fine screen device is connected with the plasma discharge end of the first fine screen device,
And first fine screen device plasma discharge end connect subsequent processing disk filter.
Because fiberizer needs to control when using to work under certain energy consumption, and Power Control is provided with fiberizer
The devices such as device, feed arrangement and abrasive disc, its working clearance as fluffer is fixing, thus, during defibrination,
In slurry, the length of fiber can reduce, and the occurrence probability of fibre bundle can lower, and in addition fibrillating also can occur, then due to defibrination
The effect of machine, slurry continues the freedom reduction of fiber after workshop section after entering, thus the loss of fiber reduces, the quality of fiber carries
High.Before fiberizer is arranged on second segment fine screen and the 3rd section of fine screen, its object is to conveniently in selected screening operation condition
Under, the slurry concentration after screening can be easy to reach requirement concentration 3%-4% of fiberizer.
Wherein in an embodiment, the first described transfer pipeline is provided with connecting portion, the row of described 3rd fine screen device
Slurry end is connected with this connecting portion by pipeline, and described first transfer pipeline is in described connecting portion and described second fine screen device
It is provided with delivery pump between input.Thus, by the slurry of the deslagging end discharge of the first fine screen device with by the 3rd fine screen device
The good slurry discharged of plasma discharge end can enter in the second described fine screen device in the presence of delivery pump, to make further essence
Sieve.
Wherein in an embodiment, also include separator, described in the long stuff outfan connection of this separator
Intake line, is provided with the second fiberizer on described intake line.Thus, the technical grade for Concha Arcae boxboard etc gives up
Pulp material, then can isolate long stuff and short stock by separator, and long stuff passes through long fiber pulp
Expect that outfan enters in described secondary stock fine-screening system and carries out fine screen.Further, since the long fibre that separator is isolated
Slurry concentration is likely lower than required refining concentration, then can guarantee suitable concentration by increasing enrichment facility.
Wherein in an embodiment, between described separator and the second described fiberizer, it is provided with slurry storage tank, should
Slurry storage tank has notch and outlet, and described long stuff outfan leads to this notch, described outlet and described input
Pipeline is connected.Thus, from long fibre outfan long stuff out can be introduced into be stirred slurry storage tank after enter back into
Carry out fine screen in described secondary stock fine-screening system.
Wherein in an embodiment, described slurry storage tank is provided with agitator.Thus agitator can be starched to entering storage
Long stuff in groove is stirred.
Wherein in an embodiment, described intake line sets between described second fiberizer and the first fine screen device
It is equipped with delivery pump, this intake line is also equipped with delivery pump between described slurry storage tank and the second fiberizer.Conveyed by setting
Pump it can be ensured that the long stuff in slurry storage tank can be introduced in fiberizer and carried out defibrination by the effect of delivery pump, and
After enter back in the first fine screen device and carry out fine screen.
Wherein in an embodiment, described the first fine screen device, the second fine screen device and the 3rd fine screen device are respectively
There is mair motor and converter, be electrically connected between mair motor and converter.By arranging converter, it is advantageously ensured that in difference
Yield under, described fiberizer has and suitably enters to starch concentration and optimal screening efficiency.
Wherein in an embodiment, the first described fiberizer, the second fiberizer are low dense fiberizer.
Wherein in an embodiment, described the first fine screen device, the second fine screen device and the 3rd fine screen device are
Slotted screen.
The beneficial effects of the present invention is, by introducing fiberizer in secondary stock fine-screening system so that described two
Secondary fiber fine-screening system can reduce fiber loss, and can keep higher fiber quality, thus it is advantageously ensured that pulp quality.
Brief description
Fig. 1 is the structural representation of the secondary stock fine-screening system described in the embodiment of the present invention one.
Fig. 2 is the structural representation of the secondary stock fine-screening system described in the embodiment of the present invention two.
Description of reference numerals：
10th, the first fine screen device, the 20, second fine screen device, the 30, the 3rd fine screen device, 40, fiberizer, 50, delivery pump,
60th, intake line, the 70, first transfer pipeline, the 80, second transfer pipeline, the 90, first filtrate pipe, the 100, second filtrate pipe, 110,
Centrifugation cleaning systems, 120, slurry storage tank, 130, disk filter, 140, long stuff outfan, 150, separator, 160, dense
Contracting machine.
Specific embodiment
Below embodiments of the invention are described in detail：
Embodiment one
As shown in figure 1, a kind of secondary stock fine-screening system, including the first fine screen device 10, the second fine screen device and the 3rd
Fine screen device 30, the input of the first fine screen device 10 is connected with intake line 60, the deslagging end of the first fine screen device 10, the 3rd
The plasma discharge end of fine screen device 30 is all connected with the input of the second fine screen device 20 by pipeline, the row of the second fine screen device 20
Slag end connects the input of the 3rd fine screen device 30 also by pipeline, with the deslagging end of the first fine screen device 10 and the second fine screen dress
Put the pipeline between 20 input and be designated as the first transfer pipeline 70, with the deslagging end of the second fine screen device 20 and the 3rd fine screen dress
Put the pipeline between 30 input and be designated as the second transfer pipeline 80, in the first described transfer pipeline 70 and the second transfer pipeline
Fiberizer 40 is installed on 80.
Wherein, the first described transfer pipeline 70 is provided with connecting portion, and pipe is passed through at the plasma discharge end of described 3rd fine screen device 30
Road is connected with this connecting portion, and described first transfer pipeline 70 is in the input of described connecting portion and described second fine screen device 20
Between be provided with delivery pump 50.Described the first fine screen device 10, the second fine screen device 20 and the 3rd fine screen device 30 have respectively
There are mair motor and converter, be electrically connected between mair motor and converter.Described fiberizer 40 is low dense fiberizer.Described
First filtrate pipe 90 is connected with connecting portion.Described the first fine screen device 10, the second fine screen device 20 and the 3rd fine screen device
30 are slotted screen.The plasma discharge end of the plasma discharge end of the first fine screen device 10 and the second fine screen device 20 connects disc type by pipeline respectively
Filter 130.
Certainly, above-mentioned fiberizer can also be positioned only on the first transfer pipeline 70 or be positioned only at the second transfer pipeline
On 80.
The work process of described secondary stock fine-screening system is as follows：Waste paper pulp carries out first through the first fine screen device 10
Section fine screen；After first paragraph fine screen, the slurry of the deslagging end discharge of the first fine screen device 10 is after fiberizer 40 defibrination
Enter in the second fine screen device 20 and make second segment fine screen；After second segment fine screen, the deslagging end discharge of the second fine screen device 20
Slurry enters fiberizer 40 and carries out defibrination；Slurry after defibrination then enters the essence that the 3rd fine screen device 30 carries out the 3rd section
Sieve, the good slurry of the plasma discharge end discharge of the 3rd fine screen device 30 returns the second fine screen device 20 again and carries out fine screen；And waste residue is then from
The deslagging end of three fine screen devices 30 is discharged.Finally, the plasma discharge end of the first fine screen device 10 is discharged good slurry and the second fine screen device
The disk filter 130 of subsequent processing transported to together by the good slurry that 20 plasma discharge ends are discharged.The flow direction of waste paper pulp is specifically as in Fig. 1
Shown in arrow.
The present embodiment has advantages below or principle：
1st, because fiberizer 40 needs to control when using to work under certain energy consumption, and arrange active on fiberizer 40
The devices such as rate control device, feed arrangement and abrasive disc, its working clearance as fluffer is fixing, thus, in defibrination
During, in slurry, the length of fiber can reduce, and the occurrence probability of fibre bundle can lower, and in addition fibrillating also can occur, then
Due to the effect of fiberizer 40, slurry continues the freedom reduction of fiber after workshop section after entering, thus the loss of fiber reduces, fine
The Quality advance of dimension.
2nd, described fiberizer 40 is arranged on the first transfer pipeline 70 and the second transfer pipeline 80.Thus, fiberizer 40
Before being arranged on the second fine screen device 20 and the 3rd fine screen device 30, its object is to conveniently in selected screening operation condition
Under, the slurry concentration after screening can be easy to reach requirement concentration 3%-4% of fiberizer 40.
3rd, described first transfer pipeline 70 is arranged between the input of described connecting portion and described second fine screen device 20
There is delivery pump 50.Thus, by the slurry of deslagging end discharge of the first fine screen device 10 and the plasma discharge end by the 3rd fine screen device 30
The good slurry discharged can enter in the second described fine screen device 20 in the presence of delivery pump 50, to make further fine screen.
4th, the first described fine screen device 10, the second fine screen device 20 and the 3rd fine screen device 30 be respectively provided with mair motor and
Converter, is electrically connected between mair motor and converter.By arranging converter, it is advantageously ensured that under different yield, institute
The fiberizer 40 stated has and suitably enters to starch concentration and optimal screening efficiency.
Embodiment two
As shown in Fig. 2 a kind of secondary stock fine-screening system, including the first fine screen device 10, the second fine screen device 20 and
Three fine screen devices 30, the input of the first fine screen device 10 is connected with intake line 60, the deslagging end of the first fine screen device 10,
The plasma discharge end of three fine screen devices 30 is all connected with the input of the second fine screen device 20 by pipeline, the second fine screen device 20
Deslagging end connects the input of the 3rd fine screen device 30 also by pipeline, with the deslagging end of the first fine screen device 10 and the second fine screen
Pipeline between the input of device 20 is designated as the first transfer pipeline 70, with the deslagging end of the second fine screen device 20 and the 3rd fine screen
Pipeline between the input of device 30 is designated as the second transfer pipeline 80, is provided with fiberizer on described intake line 60
40.
Wherein, the first described transfer pipeline 70 is provided with connecting portion, and pipe is passed through at the plasma discharge end of described 3rd fine screen device 30
Road is connected with this connecting portion, and described first transfer pipeline 70 is in the input of described connecting portion and described second fine screen device 20
Between be provided with delivery pump 50.Described secondary stock fine-screening system also includes separator 150, the long fibre of this separator 150
The described intake line 60 of slurry outfan connection, described fiberizer 40 is arranged on described intake line 60.Described
It is provided with slurry storage tank 120, this slurry storage tank 120 has notch and outlet, described between separator 150 and described fiberizer 40
Long stuff outfan leads to this notch, and described outlet is connected with described intake line 60.In separator 150 and storage
It is additionally provided with thickener 160 between stock tank 120.Described intake line 60 has first end and the second end, and first end is connected to
In described outlet, the second end connects the input of described first fine screen device 10.Described slurry storage tank 120 is provided with stirring
Device.Described intake line 60 is provided with delivery pump 50 between described fiberizer 40 and the first fine screen device 10, this input pipe
Road 60 is also equipped with delivery pump 50 between described slurry storage tank 120 and fiberizer 40.Described connecting portion is connected with the first filtrate
Pipe 90, described intake line 60 in fiberizer 40 and closer to that delivery pump 50 of the first fine screen device 10 between be connected with
Second filtrate pipe 100.Described the first fine screen device 10, the second fine screen device 20 and the 3rd fine screen device 30 are respectively provided with main electricity
Machine and converter, are electrically connected between mair motor and converter.Described fiberizer 40 is low dense fiberizer 40.Described first
Fine screen device 10, the second fine screen device 20 and the 3rd fine screen device 30 are slotted screen.The plasma discharge end of the first fine screen device 10 and
The plasma discharge end of two fine screen devices 20 connects disk filter 130 by pipeline respectively.Before or after described separator 150 also
It is provided with the centrifugation cleaning systems 110 for removing heavy seeds.
Above-mentioned fiberizer 40 also may be installed on the first transfer pipeline 70 and/or the second transfer pipeline 80.
Described secondary stock fine-screening system is long stapled mainly for the technical grade waste paper of Concha Arcae boxboard (OCC) etc
Fine screen is reclaimed, and its work process is as follows：Waste paper pulp first removes heavy seeds through centrifugation cleaning systems 110, then enters separator
Long stuff and short stock is isolated, long stuff then can enter storage after the concentration through thickener 160 in 150
It is stirred in stock tank 120；The first fine screen device is entered after the first defibrination through fiberizer 40 of long stuff after stirring
10 carry out first paragraph fine screen；Enter second in the slurry that after first paragraph fine screen, the deslagging end of the first fine screen device 10 is discharged
Make second segment fine screen in fine screen device 20；After second segment fine screen, the slurry that the deslagging end of the second fine screen device 20 is discharged enters
Enter the fine screen that the 3rd fine screen device 30 carries out the 3rd section, the good slurry that the plasma discharge end of the 3rd fine screen device 30 is discharged returns second again
Fine screen device 20 carries out fine screen；And waste residue is then discharged from the deslagging end of the 3rd fine screen device 30.Finally, the first fine screen device 10
The disk filter of subsequent processing is transported to the second fine screen device 20 plasma discharge end together with the good slurry that the good slurry that plasma discharge end is discharged is discharged
130.The flow direction of waste paper pulp is concrete as denoted by the arrows in fig. 2.
The present embodiment has advantages below or principle：
1st, because fiberizer 40 needs to control when using to work under certain energy consumption, and arrange active on fiberizer 40
The devices such as rate control device, feed arrangement and abrasive disc, its working clearance as fluffer is fixing, thus, in defibrination
During, in slurry, the length of fiber can reduce, and the occurrence probability of fibre bundle can lower, and in addition fibrillating also can occur, then
Due to the effect of fiberizer 40, slurry continues the freedom reduction of fiber after workshop section after entering, thus the loss of fiber reduces, fine
The Quality advance of dimension.
2nd, described first transfer pipeline 70 is arranged between the input of described connecting portion and described second fine screen device 20
There is delivery pump 50.Thus, by the slurry of deslagging end discharge of the first fine screen device 10 and the plasma discharge end by the 3rd fine screen device 30
The good slurry discharged can enter in the second described fine screen device 20 in the presence of delivery pump 50, to make further fine screen.
3rd, the described intake line 60 of the long stuff outfan connection of separator 150, described fiberizer 40 is installed
On described intake line 60.Thus, for the technical grade waste paper pulp of Concha Arcae boxboard (OCC) etc, then can pass through
Separator 150 isolates long stuff and short stock, and long stuff is entered by long stuff outfan
Carry out fine screen in described secondary stock fine-screening system.
4th, it is provided with slurry storage tank 120 between described separator 150 and described fiberizer 40, thus, from long fine output
The long stuff bringing out can be introduced into and enter back in described secondary stock fine-screening system after being stirred in slurry storage tank 120
Carry out fine screen.Further, since the long stuff concentration that separator 150 is isolated is likely lower than required refining concentration, then
Suitable refining concentration can be guaranteed by increasing thickener 160 between separator 150 and slurry storage tank 120.
5th, described slurry storage tank 120 is provided with agitator.Thus agitator can be to the long fibre entering in slurry storage tank 120
Slurry is stirred, and is beneficial to rear end operation and preferably carries out defibrination to long fibre.
6th, described intake line 60 is provided with delivery pump 50 between described fiberizer 40 and the first fine screen device 10, should
Intake line 60 is also equipped with delivery pump 50 between described slurry storage tank 120 and fiberizer 40.By arranging delivery pump 50, can
Guarantee that the long stuff in slurry storage tank 120 can pass through the effect of delivery pump 50, be introduced in fiberizer 40 and carry out defibrination, and
After enter back in the first fine screen device 10 and carry out fine screen.
7th, the first described fine screen device 10, the second fine screen device 20 and the 3rd fine screen device 30 be respectively provided with mair motor and
Converter, is electrically connected between mair motor and converter.By arranging converter, it is advantageously ensured that under different yield, institute
The fiberizer 40 stated has and suitably enters to starch concentration and optimal screening efficiency.
Embodiment described above only have expressed the specific embodiment of the present invention, and its description is more concrete and detailed, but simultaneously
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformation can also be made and improve, these broadly fall into the guarantor of the present invention
Shield scope.
Claims (8)
1. a kind of secondary stock fine-screening system, including at least two fine screen devices being sequentially connected by delivery pipe, each fine screen
Device is respectively provided with input, plasma discharge end and deslagging end, and the input positioned at the fine screen device of foremost is connected with input pipe
Road, between two adjacent fine screen devices, is connected by described delivery pipe positioned at the deslagging end of fine screen device above and is located at
The input of fine screen device below；Wherein, described fine screen device is set to three, i.e. the first fine screen device, the second fine screen dress
Put and the 3rd fine screen device, described intake line is connected on the input of the first fine screen device, the deslagging of the first fine screen device
End connects the input of the second fine screen device by the first transfer pipeline, and the second delivery pipe is passed through at the deslagging end of the second fine screen device
Road connects the input of the 3rd fine screen device it is characterised in that pipeline and the second fine screen are passed through in the plasma discharge end of the 3rd fine screen device
The input of device is connected, and is provided with the first fiberizer on the first transfer pipeline and the second transfer pipeline, described input
Delivery pump is provided with pipeline.
2. secondary stock fine-screening system according to claim 1 is it is characterised in that the first described transfer pipeline is provided with even
Socket part, the plasma discharge end of described 3rd fine screen device is connected with this connecting portion by pipeline, and described first transfer pipeline is described
It is provided with delivery pump between the input of connecting portion and described second fine screen device.
3. secondary stock fine-screening system according to claim 1 is it is characterised in that also include separator, this separator
The described intake line of long stuff outfan connection, is provided with the second fiberizer on described intake line.
4. secondary stock fine-screening system according to claim 3 is it is characterised in that described separator and described second
It is provided with slurry storage tank, this slurry storage tank has notch and outlet, described long stuff outfan leads to this groove between fiberizer
Mouthful, described outlet is connected with described intake line.
5. secondary stock fine-screening system according to claim 4 is it is characterised in that described slurry storage tank is provided with stirring
Device.
6. secondary stock fine-screening system according to claim 3 is it is characterised in that described intake line is described second
It is provided with delivery pump, this intake line is between described slurry storage tank and the second fiberizer between fiberizer and the first fine screen device
It is provided with delivery pump.
7. secondary stock fine-screening system according to claim 1 it is characterised in that described the first fine screen device, second
Fine screen device and the 3rd fine screen device are slotted screen, and this first fine screen device, the second fine screen device and the 3rd fine screen device divide
Not there is mair motor and converter, be electrically connected between mair motor and converter.
8. secondary stock fine-screening system according to claim 1 is it is characterised in that described the first fiberizer, the second mill
Pulp grinder is low dense fiberizer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825383.5A CN106436423A (en) | 2014-02-20 | 2014-02-20 | Secondary fiber fine screening system |
| CN201410059039.0A CN103790064B (en) | 2014-02-20 | 2014-02-20 | Secondary stock fine-screening system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410059039.0A CN103790064B (en) | 2014-02-20 | 2014-02-20 | Secondary stock fine-screening system |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610825383.5A Division CN106436423A (en) | 2014-02-20 | 2014-02-20 | Secondary fiber fine screening system |
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| CN103790064A CN103790064A (en) | 2014-05-14 |
| CN103790064B true CN103790064B (en) | 2017-03-01 |
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| CN201610825383.5A Pending CN106436423A (en) | 2014-02-20 | 2014-02-20 | Secondary fiber fine screening system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110093802B (en) * | 2019-06-13 | 2024-05-28 | 中国轻工业长沙工程有限公司 | Fiber classification and fine screening system for waste paper pulping |
| CN110184843A (en) * | 2019-06-21 | 2019-08-30 | 广东理文造纸有限公司 | A kind of pulp residue after paper-making fine-screening system |
| CN114108353B (en) * | 2021-12-10 | 2024-03-01 | 安德里茨（中国）有限公司 | Screening system |
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| US3925150A (en) * | 1973-04-06 | 1975-12-09 | Black Clawson Co | Selective reclamation of waste paper products |
| SE513140C2 (en) * | 1998-11-19 | 2000-07-10 | Valmet Fibertech Ab | Procedure for producing upgraded newsprint pulp to SC / LWC quality |
| DE10218265C1 (en) * | 2002-03-07 | 2003-06-18 | Voith Paper Patent Gmbh | Controlling fines concentration in waste paper suspensions, separates two streams from washer for direct return and adjustment of fines content |
| DE10244521B3 (en) * | 2002-09-25 | 2004-02-19 | Voith Paper Patent Gmbh | Conversion of used paper into papermaking pulp, for quality graphic papers, has a fine sorting for the suspension while the rejected matter is separated into long and short fiber fractions for further cleaning and processing |
| CN101153471A (en) * | 2006-09-27 | 2008-04-02 | 吴解生 | Non-process sealing circulation technology for wastewater from pulp and paper making by non-delignify reaction |
| 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 |
| CN202466285U (en) * | 2012-01-16 | 2012-10-03 | 广东理文造纸有限公司 | Fiber fine screening system for papermaking with waste paper |
| CN202430565U (en) * | 2012-01-16 | 2012-09-12 | 广东理文造纸有限公司 | Fiber fine screening system for making paper from wastepaper |
| CN202766905U (en) * | 2012-08-30 | 2013-03-06 | 东莞理文造纸厂有限公司 | Papermaking fine sieving system |
| CN103255664B (en) * | 2013-04-20 | 2016-05-04 | 浙江荣晟环保纸业股份有限公司 | A kind of technique of extracting high-quality fiber from reclaimed waste paper |
| CN203923778U (en) * | 2014-02-20 | 2014-11-05 | 安德里茨（中国）有限公司 | Secondary stock fine-screening system |
| CN106223094B (en) * | 2016-07-29 | 2018-04-24 | 云南新平南恩糖纸有限责任公司 | Mixed pulp paper technology |
-
2014
- 2014-02-20 CN CN201410059039.0A patent/CN103790064B/en active Active
- 2014-02-20 CN CN201610825383.5A patent/CN106436423A/en active Pending
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| CN106436423A (en) | 2017-02-22 |
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