CN208803298U - A kind of purification system improving surface layer paper pulp cleanliness - Google Patents
A kind of purification system improving surface layer paper pulp cleanliness Download PDFInfo
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- CN208803298U CN208803298U CN201820899634.9U CN201820899634U CN208803298U CN 208803298 U CN208803298 U CN 208803298U CN 201820899634 U CN201820899634 U CN 201820899634U CN 208803298 U CN208803298 U CN 208803298U
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Abstract
The utility model relates to a kind of purification systems for improving surface layer paper pulp cleanliness, the purification system includes the first classifying screen and the second classifying screen, first classifying screen and the second classifying screen are linked in sequence, first classifying screen is for separating long stuff, the tail slurry of first classifying screen inputs second classifying screen, second classifying screen is for separating short stock and middle fibre stuff, by changing the sequence of the screening slurry of classifying screen, to improve the cleanliness for making the paper pulp of surface layer.The purification system provided by the utility model for improving surface layer paper pulp cleanliness, on the one hand, the cleanliness of surface layer paper pulp can be effectively improved, and then reduce the dust point or impure point of paper surface layer；On the other hand, also have scrap build simple, the advantages of save the cost.
Description
Technical field
The utility model relates to pulp technology for making paper more particularly to a kind of purification systems for improving surface layer paper pulp cleanliness.
Background technique
With the development of industry manufacture and e-commerce, the demand of product packaging paper is continuously increased.Currently, secondary stock is raw
The wrapping paper of production has become the leading of wrapping paper.The pulping and paper-making production system of the secondary stocks such as waste and old boxboard, which exists, to be slurried
Cleanliness is poor, the problem more than the paper surface layer dust point and impure point of production, cause quality of paper products be not able to satisfy client with
The market demand, the cleanliness for how improving secondary stock become a technical problem to be solved urgently.
At present in pulping and papermaking process, good slurry that classifying screen first time classifying screen is selected is short stock, and tail slurry is into one
Step carries out classifying screen classification, and sifting out good slurry is middle fibre stuff, and tail slurry is long stuff.Wherein, the middle fiber pulp filtered out
Material is for manufacturing paper pulp surface layer.In existing paper pulp papermaking technique, classifying screen first time sizing screening and second of sizing screening make
The screen slot spacing of classifying screen is identical, and the middle fibre stuff quality filtered out cannot be met the requirements, and dust impure point is more.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of purification system for improving surface layer paper pulp cleanliness, adopt
The technical solution taken is as follows:
A kind of purification system improving surface layer paper pulp cleanliness, the purification system include the first classifying screen and the second classification
Sieve, first classifying screen and the second classifying screen are linked in sequence, and first classifying screen is used to separate long stuff, and described the
The tail slurry of one classifying screen inputs second classifying screen, and second classifying screen is for separating short stock and middle fiber pulp
Material, the short stock input paper machine side layer, and the long stuff and middle fibre stuff input paper machine bottom；
Further, the screen cylinder of first classifying screen and the second classifying screen is slotted screen, the sieve of first classifying screen
Stitch the screen slot spacing that spacing is greater than second classifying screen；
Further, the screen slot spacing range of first classifying screen is 0.05-0.5mm, preferably 0.15mm；
Further, the screen slot spacing range of second classifying screen is 0.05-0.3mm, preferably 0.1mm；
Further, the purification system further includes desander, and the desander is arranged after classifying screen, for point
Treated that slurry carries out removal of impurities processing for grade sieve；
Further, the cyclone diameter of the desander is less than 80mm；
Further, the cyclone diameter of the desander is 50-60mm；
Further, desander includes long fibre desander, staple fiber desander and middle fiber desander, the long fibre
Desander stock inlet is connect with the first classifying screen long fibre grout outlet, the stock inlet of the staple fiber desander with described second point
The staple fiber grout outlet connection of grade sieve, the stock inlet of the middle fiber desander and the middle fiber grout outlet of second classifying screen
Connection.
Further, the long fibre desander is made of four concatenated desanders, and the middle fiber desander is by four
A concatenated desander composition, the staple fiber coarse sand device are made of two concatenated desanders.
Due to the implementation of above technical scheme, the utility model has the advantages that compared with prior art
The purification system provided by the utility model for improving surface layer paper pulp cleanliness, the purification system include the first classification
Sieve and the second classifying screen, first classifying screen and the second classifying screen are linked in sequence, and first classifying screen is for separating long fibre
Slurry is tieed up, the tail slurry of first classifying screen inputs second classifying screen, and second classifying screen is for separating short fibered pulp
Material and middle fibre stuff, the sequence of the screening slurry by changing classifying screen, to improve the clean of the paper pulp for making surface layer
Cleanliness.The purification system provided by the utility model for improving surface layer paper pulp cleanliness, on the one hand, surface layer paper pulp can be effectively improved
Cleanliness, and then reduce the dust point or impure point of paper surface layer；On the other hand, also have scrap build simple, save the cost
The advantages of.
Detailed description of the invention
Fig. 1 is the schematic diagram that the purification system of surface layer paper pulp cleanliness is improved in embodiment 1；
Fig. 2 is the schematic diagram that the purification system of surface layer paper pulp cleanliness is improved in embodiment 2
Specific embodiment
It is practical below in conjunction with this in order to make those skilled in the art more fully understand the technical solution of the utility model
Attached drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, institute
The embodiment of description is only the embodiment of the utility model a part, instead of all the embodiments.Based on the utility model
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
The range of the utility model protection all should belong in example.
Embodiment
First classifying screen: producer, KBC international body (China) Co., Ltd；Model UV500；
Second classifying screen: producer, KBC international body (China) Co., Ltd；Model UV500；
Desander: producer, KBC international body (China) Co., Ltd；Model C T30.
Embodiment 1
The present embodiment provides a kind of purification system for improving surface layer paper pulp cleanliness, the purification system includes the first classification
Sieve and the second classifying screen, first classifying screen and the second classifying screen are linked in sequence, and first classifying screen is for separating long fibre
Slurry is tieed up, the tail slurry of first classifying screen inputs second classifying screen, and second classifying screen is for separating short fibered pulp
Material and middle fibre stuff, the short stock are used to prepare the surface layer of boxboard, the long stuff and middle fibre stuff
It is used to prepare the sandwich layer of boxboard.
The screen slot of first classifying screen is set as 0.15mm, and the screen slot spacing of the second classifying screen is set as 0.1mm
As shown in Figure 1, paper pulp, after scalping is handled, into the first classifying screen, scalping isolates long stuff
It goes, remaining slurry enters the second classifying screen, and secondary grading separates short stock and middle fibre stuff.It is wherein long fine
Slurry and middle fibre stuff are tieed up after the processing of subsequent processing process, into paper machine bottom, for manufacturing the sandwich layer of boxboard；It is short
Fibre stuff is after the processing of subsequent processing process, into paper machine side layer, for manufacturing the surface layer of boxboard.
By changing traditional classifying screen clastotype, it may be assumed that scalping sifts out short stock, secondary grading separation length
Fiber and middle fibre stuff；Secondary grading is carried out to the short stock of preparation surface layer paper pulp, improves the cleanliness of surface layer paper pulp,
And then the dust of surface layer paper surface and the quantity of impure point are reduced, improve the quality of surface layer paper.
Embodiment 2
To further increase paper pulp cleanliness, purification system provided by the utility model further includes desander, the desanding
Device is arranged after classifying screen, for classifying screen, treated that slurry cleans.Desander includes long fibre desander, short
Fiber desander and middle fiber desander, the long fibre desander stock inlet are connect with the first classifying screen long fibre grout outlet,
The stock inlet of the staple fiber desander is connect with the staple fiber grout outlet of second classifying screen, the middle fiber desander
Stock inlet is connect with the middle fiber grout outlet of second classifying screen,
To reduce fiber loss rate, long stuff and middle fibre stuff pass through 4 sections of removal of impurities processing, it may be assumed that described long fine
Dimension desander is made of four concatenated desanders (calling 4 sections of desanders in the following text), and the middle fiber desander concatenated is removed by four
Sand device (calling 4 sections of desanders in the following text) composition,
For the cleanliness for improving short stock, short stock is arranged to 2 sections of removal of impurities processing, the staple fiber desander
It is made of the desander of two series connection (calling 2 sections of desanders in the following text).
The cyclone diameter of desander is set as 55mm.
As shown in Fig. 2, paper pulp, after scalping is handled, into the first classifying screen, scalping isolates long stuff
It goes, remaining slurry enters the second classifying screen, and secondary grading separates short stock and middle fibre stuff；Short fibered pulp
Material enters 2 sections of desanders, and 2 sections of desanders treated short stock is after the processing of subsequent processing process, into paper machine side layer；
Middle fibre stuff enters 4 sections of desanders, 4 sections of desanders during treated fibre stuff enter after the processing of subsequent processing process
Paper machine bottom；Long stuff enters 4 sections of desanders, 4 sections of desanders treated long stuff through subsequent processing process at
After reason, into paper machine bottom.
Following table be treated the surface layer paper pulp preparation of the purification system that is provided through the invention paper and traditional surface layer
The contrast effect of the paper of pulp processing technique preparation.Paper quality evaluation index uses unit area (1 square metre) interior dust
Point number.
Above embodiments are described in detail the utility model, and its object is to allow the personage for being familiar with this field technology
The content of the utility model can be understood and be implemented, do not limited the protection scope of the present invention, all bases
Equivalent change or modification made by the Spirit Essence of the utility model should all cover within the protection scope of the present utility model.
Claims (8)
1. a kind of purification system for improving surface layer paper pulp cleanliness, which is characterized in that the purification system includes the first classifying screen
With the second classifying screen, first classifying screen and the second classifying screen are linked in sequence, and first classifying screen is for separating long fibre
Slurry, the tail slurry of first classifying screen input second classifying screen, and second classifying screen is for separating short stock
With middle fibre stuff, the short stock inputs paper machine side layer, and the long stuff and middle fibre stuff input paper machine bottom
Layer.
2. purification system as described in claim 1, which is characterized in that the screen cylinder of first classifying screen and the second classifying screen is equal
For slotted screen, the screen slot spacing of first classifying screen is greater than the screen slot spacing of second classifying screen.
3. purification system as claimed in claim 2, which is characterized in that the screen slot spacing range of first classifying screen is
0.05-0.5mm。
4. purification system as claimed in claim 2, which is characterized in that the screen slot spacing range of second classifying screen is
0.05-0.3mm。
5. purification system as claimed in claim 4, which is characterized in that the purification system further includes desander, the desanding
Device is arranged after classifying screen, for classifying screen, treated that slurry carries out removal of impurities processing.
6. purification system as claimed in claim 5, which is characterized in that the cyclone diameter of the desander is less than 80mm.
7. purification system as claimed in claim 6, which is characterized in that desander includes long fibre desander, staple fiber desanding
Device and middle fiber desander, the long fibre desander stock inlet are connect with the first classifying screen long fibre grout outlet, the short fibre
Dimension desander stock inlet connect with the staple fiber grout outlet of second classifying screen, the stock inlet of the middle fiber desander and
The middle fiber grout outlet of second classifying screen connects.
8. purification system as claimed in claim 7, which is characterized in that the long fibre desander is by four concatenated desanders
Composition, the middle fiber desander are made of four concatenated desanders, and the staple fiber desander is by two concatenated desanding
Device composition.
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| CN201820899634.9U CN208803298U (en) | 2018-06-11 | 2018-06-11 | A kind of purification system improving surface layer paper pulp cleanliness |
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| CN201820899634.9U CN208803298U (en) | 2018-06-11 | 2018-06-11 | A kind of purification system improving surface layer paper pulp cleanliness |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468244A (en) * | 2018-06-11 | 2018-08-31 | 玖龙纸业（太仓）有限公司 | A kind of purification system and its purification method of raising face layer paper pulp cleanliness factor |
-
2018
- 2018-06-11 CN CN201820899634.9U patent/CN208803298U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468244A (en) * | 2018-06-11 | 2018-08-31 | 玖龙纸业（太仓）有限公司 | A kind of purification system and its purification method of raising face layer paper pulp cleanliness factor |
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