CN101775753B - Filling method and device thereof in paper making process - Google Patents
Filling method and device thereof in paper making process Download PDFInfo
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- CN101775753B CN101775753B CN 201010134730 CN201010134730A CN101775753B CN 101775753 B CN101775753 B CN 101775753B CN 201010134730 CN201010134730 CN 201010134730 CN 201010134730 A CN201010134730 A CN 201010134730A CN 101775753 B CN101775753 B CN 101775753B
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- wet end
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Abstract
The invention provides a filling method and a device thereof in a paper making process, wherein wet paper is respectively molded in two independent parts: a first stock discharge box netting part and a second stock discharge box netting part, then, dry powder is spread on the upper surface of the lower wet paper, next, the upper wet paper and the lower wet paper are pasted for forming complete paper, and finally, finished products are obtained through pressing and drying. Thereby, the dry powder is clamped between the upper wet paper and the lower wet paper, and is not easy to get lost, so the powder of the manufactured paper is not easy to fall down, and the powder filling quantity is improved.
Description
[technical field]
The invention belongs to field of papermaking, particularly filling method and the device thereof in a kind of paper making process.
[background technology]
Usually need to add some mineral powders shape fillers in the process of manufacturing paper with pulp of paper, such as talcum powder, calcium carbonate etc., this technical process is called to add fills out.Adding the purpose of filling out is to improve the performance of paper on the one hand, is the cost that reduces paper on the other hand.In order to reduce the cost of paper, always wish under the prerequisite that does not affect paper quality, to improve as far as possible the amount that attaches.
In the paper-making process traditional filling method be with fillers dispersed in water, be made into first suspension, and after mixing with slurry, then manufacture paper with pulp at paper machine.This method can be called to add in the slurry fills out, and it has certain defective.The one, the number of dropouts of filler is large in forming process, and main is to improve relatively difficulty of addition.Because when addition is excessive, can reduce the printing performance of paper, the meeting generation dry linting phenomenon such as paper surface in printing process causes the printing operation obstacle.
Generally adopt at present the method for in filler suspension or paper pulp, adding chemical assistant to improve the amount of filling out that adds, to reduce cost.But be so, bring up to more than 22% still very difficult adding the amount of filling out.Want further to significantly improve the amount of filling out that adds, just need to open up the new approach of filling out that adds.
Adopting the multilayer head box also is to improve a kind of approach that adds the amount of filling out.Can in head box, be divided into three layers to paper pulp, improve the filer content of intermediate layer paper pulp, reduce the filer content on bottom and top layer.This method is feasible in principle, is not leaving the rapid mixing problem that occurs behind the head box lip but also solve slurry fully at present.
In view of above problem, be necessary to provide in fact filling method and device thereof in a kind of paper making process that can solve the problems of the technologies described above.
[summary of the invention]
Technical problem to be solved by this invention provides filling method and the device thereof in a kind of paper making process, and it improves the amount of filling out that adds in the situation that do not reduce paper performance.
For achieving the above object, the invention provides the action that adds in a kind of paper making process, comprise the upper wet end and the lower wet end that be arranged in parallel up and down, described upper wet end comprises upper wet end top respect to one another and upper wet end end, described lower wet end comprises lower wet end top respect to one another and lower wet end end, described upper wet end top and lower wet end top are oppositely arranged, upper wet end top is connected with primary headbox, upper wet end end is provided with the first composite roll, upper wet end top be provided with between upper wet end top and the upper wet end end and near on the spray equipment of wet end end, lower wet end top is provided with secondary headbox, lower wet end end is connected with suction couch roll, lower wet end top is provided with the dusting device between lower wet end top and lower wet end end, off line subordinate side is provided with the first vacuum tank, dusting device at the dusting device rear side, namely is provided with the second composite roll near the terminal side of lower wet end between lower wet end top and lower wet end end.
As the preferred embodiments of the present invention, what described spray equipment was in-built is adhesive;
As the preferred embodiments of the present invention, described adhesive comprises starch;
As the preferred embodiments of the present invention, described the first vacuum tank be positioned at dusting device under;
As the preferred embodiments of the present invention, further comprise the second vacuum tank, described the second vacuum tank is between the second composite roll and lower wet end end;
As the preferred embodiments of the present invention, described the second vacuum tank comprises three vacuum tanks that are arranged in order;
For achieving the above object, the present invention also provides the filling method in a kind of paper making process, may further comprise the steps:
Step 1: wet end is provided, lower wet end, primary headbox, secondary headbox, spray equipment, dusting device, the first vacuum tank, and first composite roll and the second composite roll, described upper wet end comprises relative upper wet end top and upper wet end end, lower wet end comprises relative lower wet end top and lower wet end end, described primary headbox and secondary headbox lay respectively at wet end top and lower wet end top, described spray equipment between upper wet end top and the upper wet end end and near on wet end terminal, it is terminal that described the first composite roll is positioned at wet end, described dusting device is between lower wet end top and lower wet end end, described the first vacuum tank be positioned at off line subordinate surface and with dusting device over against, described the second composite roll is positioned at the dusting device rear side, namely near the terminal side of lower wet end;
Step 2: out upper l Water Paper is terminal mobile towards upper wet end from upper wet end top in the primary headbox, when it moves to the spray equipment below, spray equipment is towards the upper surface spray paste stick of upper l Water Paper, then upper l Water Paper continues reach, and under the drive of the first composite roll and the second composite roll, move towards lower wet end, meanwhile, out lower l Water Paper moves towards lower wet end from lower wet end top in the secondary headbox, when it moves to the dusting device below, dry powder is sprinkling upon the upper surface of lower l Water Paper by dusting device, then, the first vacuum tank aspirates lower l Water Paper, and the dry powder on the lower l Water Paper is fully contacted with the cellulose of lower wet paper surface, then, lower l Water Paper continues reach;
Step 3: when upper l Water Paper moves to lower wet end, with lower l Water Paper applying, form complete paper, and continue to move towards lower wet end end along lower wet end, last, leave lower wet end and also squeeze successively, dry.
As the preferred embodiments of the present invention, further comprise three the second vacuum tanks and a suction couch roll of being arranged side by side, described the second vacuum tank is between the second composite roll and lower wet end end, described suction couch roll is between the second vacuum tank and lower wet end end, when upper l Water Paper and lower l Water Paper fit together form complete paper after, during respectively through the second vacuum tank and suction couch roll, the second vacuum tank and suction couch roll aspirate complete paper, and adhesive is fully contacted with dry powder;
As the preferred embodiments of the present invention, for the paper of every square meter 70 grams, the addition of described dry powder is every square metre 7 ~ 14 gram dry powder.
The present invention has the following advantages at least: owing to the filler dry powder has been clipped in the centre of two-layer l Water Paper, therefore, in printing process, be difficult for occuring the dry linting phenomenon, thereby, avoided filler in equipment and ducted retention or precipitation, so, not only improved the addition of filler, and reduced the rotten or metachromatism of filler to the impact of paper quality.
[description of drawings]
Fig. 1 is the forming principle figure of the filling method in the paper making process of the present invention.
Among the figure, the label that element is corresponding with it is as follows:
1-upper wet end 11-spray equipment the 13-the first composite roll
3-lower wet end 31-dusting device the 33-the first vacuum tank
The 35-the second composite roll the 37-the second vacuum tank 39-suction couch roll
5-secondary headbox, 7-primary headbox
[specific embodiment]
Below in conjunction with accompanying drawing paper filling method of the present invention and device thereof are described in detail:
See also shown in Figure 1ly, the action that adds in the paper making process of the present invention comprises wet end 1, places lower wet end 1 below and the lower wet end 3 that be arranged in parallel with upper wet end 1, places respectively primary headbox 7 and the secondary headbox 5 of upper wet end 1 end and lower wet end end.
Described upper wet end 1 comprises upper wet end top A and the terminal B of upper wet end that is oppositely arranged, described primary headbox 7 is arranged at wet end top A, terminal B is provided with the first composite roll 13 at upper wet end, in addition, also be provided with spray equipment 11 above upper wet end 1, it is arranged between wet end top A and the terminal B of upper wet end and near the terminal B of upper wet end.
What described spray equipment sprayed is adhesive, and it is comprised of starch and an amount of chemical assistant.
Described lower wet end 3 comprises lower wet end top C and the terminal D of lower wet end that is oppositely arranged, described secondary headbox 5 is arranged at lower wet end top C, the terminal D of lower wet end is provided with suction couch roll 39, in addition, lower wet end 3 tops are provided with dusting device 31, lower wet end 3 belows are provided with the first vacuum tank 33, described the first vacuum tank 33 is positioned under the dusting device 31, described dusting device 31 is the appropriate location between lower wet end top C and the terminal D of lower wet end, in addition, at dusting device 31 rear sides, namely be provided with the second composite roll 35 near terminal D one side of lower wet end, in the present embodiment, described the second composite roll 35 is not arranged under the first composite roll 13, but have certain deviation, and the lower wet end top C of deflection.
The below does concrete introduction for the filling method that the present invention manufactures paper with pulp in the process:
At first, slurry when its solid content reaches 10% ~ 16%, forms respectively upper l Water Paper and lower l Water Paper respectively in primary headbox 7 and secondary headbox 5 interior processing;
Then, upper l Water Paper and lower l Water Paper move along the direction of arrow on wet end on Fig. 11 and the lower wet end 3 respectively, wherein, when upper l Water Paper moves to spray equipment 11 below of upper wet end 1, spray equipment 11 downward spray paste sticks, and be attached to the upper surface of l Water Paper; When l Water Paper moves to dusting device 31 below instantly, the dry powder that filler is used scatters upper surface at lower l Water Paper downwards by dusting device 31, the addition of described dry powder is every square metre 7 ~ 14 gram, scatter the upper surface of lower l Water Paper when dry powder after, the 33 pairs of lower l Water Papers of the first vacuum tank that are positioned at lower wet end 3 belows aspirate, so, so that scatter dry powder on lower l Water Paper and the cellulose close contact of lower wet paper surface, thereby, make the part dry powder enter into hole between the cellulose;
Then, move on upper l Water Paper and lower l Water Paper continuation the edge separately direction of arrow, when upper l Water Paper moves to the terminal B of upper wet end, driven by the first composite roll 13, move towards lower wet end by the conveyer belt between the first composite roll 13 and the second composite roll 35, when moving to lower wet end 3, upper l Water Paper and lower l Water Paper fit together, and terminal mobile towards lower wet end on lower wet end 3, when its during through the second vacuum tank 37 and suction couch roll 39, the upper l Water Paper that fits together and lower l Water Paper are further aspirated, thereby, adhesive on the l Water Paper is moved towards the below, thereby fully contact with the dry powder on the lower l Water Paper, behind two the second vacuum tanks 37 and suction couch roll 39, on, the adhesive of lower l Water Paper fully contacts with dry powder, and dry powder fully contacts with the cellulose of wet paper surface, thereby forms complete l Water Paper;
At last, complete l Water Paper leaves lower wet end 3, and gets final product through press section dehydration and drying section oven dry successively.
In the present embodiment, because dry powder is sandwiched between l Water Paper and the lower l Water Paper, is difficult for dry linting, thereby, improved the adhesive rate of dry powder, improve the addition of dry powder, also avoided retention or the precipitation of filler dry powder in equipment, and then, reduced the rotten or variable color of paper to the impact of paper quality, therefore, by a process for preparing next paper under the prerequisite that does not affect paper quality, improved the addition of filler powder.
The above only is one embodiment of the present invention, it or not whole or unique embodiment, the conversion of any equivalence that those of ordinary skills take technical solution of the present invention by reading specification of the present invention is claim of the present invention and contains.
Claims (9)
1. add action in the paper making process, it is characterized in that: comprise the upper wet end (1) and the lower wet end (3) that be arranged in parallel up and down, described upper wet end (1) comprises upper wet end respect to one another top (A) and upper wet end terminal (B), described lower wet end (3) comprises lower wet end respect to one another top (C) and lower wet end terminal (D), described upper wet end top (A) is oppositely arranged with lower wet end top (C), upper wet end top (A) is connected with primary headbox (7), upper wet end terminal (B) is provided with the first composite roll (13), upper wet end (1) top is provided with and is positioned between wet end top (A) and the upper wet end terminal (B) and the spray equipment (11) of close upper wet end terminal (B), lower wet end top (C) is provided with secondary headbox (5), lower wet end terminal (D) is connected with suction couch roll (39), lower wet end (3) top is provided with the dusting device (31) that is positioned between lower wet end top (C) and the lower wet end terminal (D), lower wet end (3) below is provided with the first vacuum tank (33), dusting device (31) is positioned between lower wet end top (C) and the lower wet end terminal (D), at dusting device (31) rear side, namely be provided with the second composite roll (35) near terminal (D) side of lower wet end.
2. add action in the paper making process as claimed in claim 1, it is characterized in that: described spray equipment is equipped with adhesive in (11).
3. add action in the paper making process as claimed in claim 2, it is characterized in that: described adhesive is comprised of starch and chemical assistant.
4. such as the action that adds in claim 1 or the 3 described paper making process, it is characterized in that: described the first vacuum tank (33) be positioned at dusting device (31) under.
5. add action in the paper making process as claimed in claim 4, it is characterized in that: further comprise the second vacuum tank (37), described the second vacuum tank (37) is positioned between the second composite roll (35) and the lower wet end terminal (D).
6. add action in the paper making process as claimed in claim 5, it is characterized in that: described the second vacuum tank (37) comprises three vacuum tanks that are arranged in order.
7. the filling method in the paper making process is characterized in that: may further comprise the steps:
Step 1: wet end (1) is provided, lower wet end (3), primary headbox (7), secondary headbox (5), spray equipment (11), dusting device (31), the first vacuum tank (33), and first composite roll (13) and the second composite roll (35), described upper wet end (1) comprises relative upper wet end top (A) and upper wet end terminal (B), lower wet end (3) comprises relative lower wet end top (C) and lower wet end terminal (D), described primary headbox (7) and secondary headbox (5) lay respectively at wet end top (A) and lower wet end top (C), described spray equipment (11) is positioned between wet end top (A) and the upper wet end terminal (B) and near upper wet end terminal (B), described the first composite roll (13) is positioned at wet end terminal (B), described dusting device (31) is positioned between lower wet end top (C) and the lower wet end terminal (D), described the first vacuum tank (33) be positioned at lower wet end (3) lower surface and with dusting device (31) over against, described the second composite roll (35) is positioned at dusting device (31) rear side, namely near terminal (D) side of lower wet end;
Step 2: out upper l Water Paper is mobile towards upper wet end terminal (B) from upper wet end top (A) in the primary headbox (7), when it moves to spray equipment (11) below, spray equipment (11) is towards the upper surface spray paste stick of upper l Water Paper, then upper l Water Paper continues reach, and under the drive of the first composite roll (13) and the second composite roll (35), mobile towards lower wet end (3), meanwhile, out lower l Water Paper is mobile towards lower wet end (D) from lower wet end top (C) in the secondary headbox (5), when it moves to dusting device (31) below, dry powder is sprinkling upon the upper surface of lower l Water Paper by dusting device (31), then, the first vacuum tank (33) aspirates lower l Water Paper, and the dry powder on the lower l Water Paper is fully contacted with the cellulose of lower wet paper surface, then, lower l Water Paper continues reach;
Step 3: when upper l Water Paper moves to lower wet end (3), with lower l Water Paper applying, form complete paper, and continue to move towards lower wet end terminal (D) along lower wet end (3), last, leave lower wet end (3) and also squeeze successively, dry.
8. the filling method in the paper making process as claimed in claim 7, it is characterized in that: further comprise three the second vacuum tanks (37) and the suction couch roll (39) that are arranged side by side and place lower wet end (3) lower surface, described the second vacuum tank (37) is positioned between the second composite roll (35) and the lower wet end terminal (D), described suction couch roll (39) is positioned between the second vacuum tank (37) and the lower wet end terminal (D), when upper l Water Paper and lower l Water Paper fit together form complete paper after, during respectively through the second vacuum tank (37) and suction couch roll (39), the second vacuum tank (37) and suction couch roll (39) aspirate complete paper, and adhesive is fully contacted with dry powder.
9. such as the filling method in claim 7 or the 8 described paper making process, it is characterized in that: for the paper of every square metre 70 gram, the addition of described dry powder is every square metre and adds 7 ~ 14 gram dry powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010134730 CN101775753B (en) | 2010-03-30 | 2010-03-30 | Filling method and device thereof in paper making process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010134730 CN101775753B (en) | 2010-03-30 | 2010-03-30 | Filling method and device thereof in paper making process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101775753A CN101775753A (en) | 2010-07-14 |
| CN101775753B true CN101775753B (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010134730 Expired - Fee Related CN101775753B (en) | 2010-03-30 | 2010-03-30 | Filling method and device thereof in paper making process |
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| Country | Link |
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| CN (1) | CN101775753B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105614942B (en) * | 2016-04-08 | 2017-07-18 | 云南中烟工业有限责任公司 | A kind of method for the retention for improving papermaking-method reconstituted tobaccos piece based filler |
| CN105661620B (en) * | 2016-04-21 | 2017-05-10 | 云南中烟工业有限责任公司 | Aquilaria sinensis reconstituted tobacco preparation method used in laboratory by adopting sandwich method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1234083A (en) * | 1996-10-18 | 1999-11-03 | 韦尔梅特公司 | Stock feed system for a multi-layer headbox, and method in operation of multi-layer headbox |
| DE19943369A1 (en) * | 1999-09-10 | 2001-03-22 | Voith Paper Patent Gmbh | Twin wire former |
| WO2009021742A1 (en) * | 2007-08-16 | 2009-02-19 | Forschungszentrum Jülich GmbH | Method for production of a high-temperature fuel cell |
-
2010
- 2010-03-30 CN CN 201010134730 patent/CN101775753B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1234083A (en) * | 1996-10-18 | 1999-11-03 | 韦尔梅特公司 | Stock feed system for a multi-layer headbox, and method in operation of multi-layer headbox |
| DE19943369A1 (en) * | 1999-09-10 | 2001-03-22 | Voith Paper Patent Gmbh | Twin wire former |
| WO2009021742A1 (en) * | 2007-08-16 | 2009-02-19 | Forschungszentrum Jülich GmbH | Method for production of a high-temperature fuel cell |
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| Publication number | Publication date |
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| CN101775753A (en) | 2010-07-14 |
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