CN105755886B - The dilution water adding set and method of a kind of adjusting paper cross direction ration - Google Patents
The dilution water adding set and method of a kind of adjusting paper cross direction ration Download PDFInfo
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- CN105755886B CN105755886B CN201610279061.5A CN201610279061A CN105755886B CN 105755886 B CN105755886 B CN 105755886B CN 201610279061 A CN201610279061 A CN 201610279061A CN 105755886 B CN105755886 B CN 105755886B
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- Prior art keywords
- branch pipe
- dilution
- dilution water
- cloth
- slurry
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/08—Regulating consistency
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Abstract
The present invention discloses the dilution water adding set and method of a kind of adjusting paper cross direction ration, its device includes head box, dilution supply mains, dilution water branch pipe and concentration adjustment module, cloth slurry branch pipe is arranged side by side in multiple row in head box, concentration adjustment module is above cloth slurry branch pipe, multiple dilution aquaporins are provided with concentration adjustment module, each aquaporin that dilutes is corresponded to above row cloth slurry branch pipe；Multiple dilution water branch pipes are distributed with dilution supply mains, each dilution water branch pipe is starched house steward with the cloth of head box by a dilution aquaporin and connected, and it is opposite with the flow direction of slurry in cloth slurry branch pipe to dilute the flow direction of dilution water in aquaporin.Its method be dilute supply mains provide dilution water through dilution water branch pipe distribution after, by dilution aquaporin enter cloth slurry house steward in, dilution water be mixed into will enter cloth slurry branch pipe slurry after, by cloth slurry branch pipe send out.The addition of the achievable dilution water of the present invention does not influence the rate of discharge of cloth slurry branch pipe, effectively avoids producing crossing current phenomenon.
Description
Technical field
The present invention relates to pulp and paper technology field, the dilution water addition of more particularly to a kind of adjusting paper cross direction ration
Device and method.
Background technology
The banner that the invention and application of local modulation slurry concentration control full width quantitative approach greatly increase paper is determined
Measure the uniformity coefficient of level distribution and fiber-wall-element model.The adjusting method of dilution water head box is laterally to starch to restrain in cloth along head box
Middle addition dilution water, the slurry concentration of each pipe in cloth slurry tube bank is adjusted by changing the amount of dilution water, so as to reach regulation paper
Open the purpose of cross direction ration.
At present, because cloth slurry branch pipe is generally plurality of rows of, the situation of a row is seldom, and is to reach preferable regulation
Effect, every cloth slurry branch pipe will add dilution water, will be connected with a dilution water branch pipe, therefore dilution water branch pipe must pacify
Mounted in the centre of each row cloth slurry branch pipe, then more more cloth being in charge of in the row of connection one slurry branch pipes are separated, this addition manner is deposited
At two aspects the problem of, first, the size of dilution water branch pipe receives the limitation of cloth slurry branch pipe arrangement position, when cloth starches branch pipe
In between the column and the column apart from very little when, the size of dilution water branch pipe must be also made very small；Second, cloth starches branch pipe by multiple rows of more
Row composition, then increase dilution water branch pipe between each row cloth starches branch pipe, manufacture difficulty is very big, and manufacturing cost greatly improves, especially
To avoid hanging, papermaking is very high to requirement on machining accuracy in head box, and this further increases the manufacture difficulty for releasing water installations
And processing cost.
In addition, adding dilution water in the cloth slurry branch pipe of head box, the flow of cloth slurry branch outlet generally can be all influenceed, it is dilute
Release water add it is more, cloth slurry branch outlet flow it is bigger, without flow over be head box design basic demand, in dilution water
In head box, crossing current is avoided more to be necessary, because the slurry crossing current after cloth slurry branch pipe, can influence the regulation of dilution water
Effect, while the fiber-wall-element model that can be influenceed in head box whitewashing that flows over.Therefore, in dilution water head box, the addition of dilution water will
Reduce the influence to cloth slurry branch outlet flow as far as possible, and the addition that optimal mode is dilution water does not influence cloth slurry completely
The rate of discharge of branch pipe.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of dilution water of adjusting paper cross direction ration
Adding set, the device can realize that the addition of dilution water does not influence the rate of discharge of cloth slurry branch pipe, effectively avoid producing crossing current now
As so as to reach the purpose by dilution water adjusting paper cross direction ration.
Another object of the present invention is to provide a kind of the dilute of adjusting paper cross direction ration realized by said apparatus
Release water adding method.
The technical scheme is that：A kind of dilution water adding set of adjusting paper cross direction ration, including head box,
Supply mains, dilution water branch pipe and concentration adjustment module are diluted, head box includes the cloth slurry house steward being connected and Bu slurry branch pipes, cloth slurry
Branch pipe is arranged side by side in multiple row, and concentration adjustment module is provided with multiple dilution waters above cloth slurry branch pipe in concentration adjustment module
Passage, each corresponding row cloth that is located at of aquaporin that dilutes are starched above branch pipe；Multiple dilution water branch pipes are distributed with dilution supply mains,
Each dilution water branch pipe is starched house steward with cloth by a dilution aquaporin and connected, and dilutes the flow direction of dilution water in aquaporin and is starched with cloth
The flow direction of slurry is opposite in branch pipe.
The dilution supply mains, dilution water branch pipe and concentration adjustment module composition dilution water addition component, when each column cloth is starched
When the quantity of cloth slurry branch pipe is more in branch pipe, dilution water addition component can be provided with two groups, be respectively arranged on the both sides up and down of head box；
Wherein, two concentration adjustment modules are respectively arranged on the both sides up and down of cloth slurry branch pipe, respectively have above and below each column cloth slurry branch pipe
One dilution aquaporin.
The dilution supply mains is taper water inlet manifold, and dilution water branch pipe is round tube；Each dilution water branch pipe and dilution water
The junction of house steward is respectively equipped with diluting water regulating valve, each external dilution water control system of diluting water regulating valve.Wherein, dilution water
Regulating valve is motor-driven valve, and with reference to its external dilution water control system, (system can use the general dilution water control of existing equipment
System processed), the flow of dilution water in each dilution water branch pipe and corresponding dilution aquaporin can be accurately controlled, is starched so as to adjust cloth
The slurry concentration of each cloth slurry pipe in tube bank.
The concentration adjustment module is rectangular plate-like structure, is offered in concentration adjustment module multiple as dilution
The groove of aquaporin, each aquaporin that dilutes is L-shaped, and dilution aquaporin both ends are connected with dilution water branch pipe and cloth slurry house steward respectively.
In addition, the transverse width of concentration adjustment module is equal with the width of head box inner space, to install, concentration adjustment module
Length is slightly less than the length of cloth slurry branch pipe, to mitigate the weight of concentration adjustment module.
In the dilution aquaporin, the one end being connected with cloth slurry house steward is circular channel or rectangular channel.
It is equal with the columns of cloth slurry branch pipe to dilute the quantity of aquaporin, each dilutes aquaporin and exactly corresponds to row cloth slurry
Branch pipe, while each dilution aquaporin is located at the surface of each column cloth slurry branch pipe；When dilution water adjusting part has 2 groups, then often
The corresponding two dilutions aquaporin of row cloth slurry branch pipe, and respectively positioned at its surface and underface.Generally, branch pipe is starched in cloth
Row it is more (i.e. each column includes more multiple cloth slurry branch pipes), it is necessary to set two groups of dilution water regulation groups when reaching 4~6 row
Part, so there is dilution water to enter in cloth slurry house steward in the upper and lower of cloth slurry branch pipe, turn 180 ° of entrance after being mixed with slurry again
In cloth slurry branch pipe, which increase the uniformity of slurry concentration in each arrangement slurry branch pipe.
The radial section area of the dilution aquaporin starches 0.5~1 times of the radial section area of branch pipe for cloth, so that
The flow velocity of dilution water is as far as possible low, avoids to the raw big influence of slurry miscarriage, while dilution water is also easier to rotate 180 ° and slurry
Enter together in cloth slurry branch pipe.
The section of the cloth slurry house steward is trapezoidal, and the entrance point of cloth slurry house steward is highly more than port of export height, and the port of export is high
Degree is 15~30 ° relative to the angle of throat of entrance point height.
The external concentration pulp distributor of entrance point of the cloth slurry house steward.
The head box also includes plenum chamber, turbulent flow generator and lip area, cloth slurry house steward, cloth slurry branch pipe, plenum chamber, rapids
Flow-generator and lip area are sequentially connected according to the flow direction of slurry.
A kind of dilution water adding method of adjusting paper cross direction ration is realized according to said apparatus, is specially：Dilution water
The dilution water that house steward provides is entered in cloth slurry house steward after the distribution of dilution water branch pipe by dilution aquaporin；It is dilute in cloth starches house steward
Release water be mixed into will enter cloth slurry branch pipe slurry after, by cloth slurry branch pipe send out.
The dilution water adding set and method of above-mentioned adjusting paper cross direction ration are in use, its operation principle is specific such as
Under：
The concentration adjustment module of head box is arranged on the top (or its upper and lower) of cloth slurry branch pipe, comes from dilution supply mains
Dilution water, enter dilution water branch pipe after diluting water regulating valve adjusts concentration, then pass through the dilution in concentration adjustment module
Aquaporin is entered in cloth slurry house steward, and the flow direction of dilution water is starched in house steward with cloth starches the in opposite direction of stream, and house steward is starched in cloth
Middle dilution water turns 180 ° after being mixed with slurry stream, is starched subsequently into cloth in branch pipe；
Each corresponding row cloth slurry branch pipe of dilution aquaporin, and positioned at the surface of each column cloth slurry branch pipe (or surface and
Underface), the slurry concentration of row cloth slurry branch pipe is adjusted, local slurry concentration control is adjusted by adding dilution water so as to reach
The purpose of paper cross direction ration；
Because dilution water adds in cloth starches house steward, rather than is directly added into cloth slurry branch pipe, therefore the addition of dilution water
Do not influence the slurry flow in cloth slurry branch pipe completely, avoid Yin Gebu in head box from starching crossing current caused by branch pipe changes in flow rate to dilution
The influence of water regulating effect.
The present invention has the advantages that relative to prior art：
This dilution water adding set and method are diluted by making dilution water be introduced into cloth slurry house steward to slurry, are then sent
Enter cloth slurry branch pipe, rather than dilution water is directly added in cloth starches branch pipe, therefore the addition of dilution water does not change cloth slurry branch completely
Slurry flow in pipe, avoid in plenum chamber because cloth slurry branch pipe slurry changes in flow rate and caused by crossing current, be effectively ensured cloth slurry performance and
Dilution water effect.
In this dilution water adding set, the size of aquaporin is diluted, the flow velocity of dilution water is not limited by cloth slurry branch tube space
System, more reasonably dilution water flow velocity can be selected, using flexible and facilitate.
This dilution water adding set is improved on the basis of existing head box, and its is simple in construction and ingenious, processing
Cost is also low.
Brief description of the drawings
Fig. 1 is the structural representation of this dilution water adding set embodiment 1.
Fig. 2 is the fragmentary sectional view in A-A directions in Fig. 1.
Fig. 3 is Fig. 2 B-B directions section view.
Fig. 4 is the partial view in C directions in Fig. 2.
Fig. 5 is the structural representation of concentration adjustment module.
Fig. 6 is the partial view in D directions in Fig. 5.
Fig. 7 is that dilution water is mixed into the principle schematic in slurry in cloth slurry house steward.
Fig. 8 is the structural representation of this dilution water adding set embodiment 2.
Fig. 9 is the distribution map that aquaporin and cloth slurry branch pipe are diluted in Fig. 8.
In above-mentioned each figure, each label is as follows：1 is dilution supply mains, and 2 be diluting water regulating valve, and 3 be dilution water branch pipe, and 4 are
Concentration adjustment module, 5 be that cloth starches house steward, and 6 be dilution aquaporin, and 7 be that cloth starches branch pipe, and 8 be plenum chamber, and 9 be turbulent flow generator, 10
For lip area, 11 is concentrate pulp distributor, and α is angle of throat of the port of export height relative to entrance point height.
Embodiment
With reference to embodiment, the present invention is described in further detail, but the implementation of the present invention is not limited to this.
Embodiment 1
A kind of dilution water adding set of adjusting paper cross direction ration of the present embodiment, used head box such as Fig. 1 institutes
Show, house steward is starched by cloth, cloth starches tube bank, plenum chamber, turbulent flow generator with lip district's groups into the arrival end of head box is also associated with collecting
Middle pulp distributor.
Dilution water adding set is including dilution supply mains, diluting water regulating valve, dilution water branch pipe, dense as shown in Fig. 1~7
Spend adjustment module, dilution water control system (not shown) and cloth slurry house steward.Cloth slurry house steward is both this dilution water adding set
A part, while be also head box part.Adjusted from the dilution water that dilution supply mains comes by diluting water regulating valve
After flow, entered by dilution water branch pipe in concentration adjustment module.
Dilution supply mains is taper water inlet manifold, and dilution water branch pipe is round tube.
Concentration adjustment module is arranged on the top of cloth slurry branch pipe, and the dilution water come from dilution water branch pipe adjusts mould by concentration
Block enters in cloth slurry house steward, and flow direction and the cloth of dilution water, which are starched, starches the in opposite direction of stream in house steward, dilution water is with slurry stream in cloth
Mixing rear steering in house steward is starched to enter in cloth slurry branch pipe.
As shown in Fig. 3, Fig. 4, Fig. 5 or Fig. 6, concentration adjustment module is a block length square plate, and offering dilution water on plate leads to
Road, dilution aquaporin are a rectangular channel, and one end is connected with dilution water branch pipe, and the other end connects with cloth slurry house steward.
A plurality of dilution aquaporin is provided with concentration adjustment module, the quantity for diluting aquaporin is exactly equal to cloth slurry branch pipe
Columns, each aquaporin that dilutes exactly corresponds to row cloth slurry branch pipe, while each dilution aquaporin is located at each column cloth slurry branch pipe
Surface.The sectional area for diluting aquaporin starches 0.5 times of branch pipe sectional area for cloth, so that the speed of dilution water is very low, keeps away
Exempt to the raw big influence of slurry miscarriage, while dilution water is also easier to turn 180 ° together with slurry to enter in cloth slurry branch pipe.
Managed as shown in fig. 7, cloth starches house steward for trapezoid cross section, entrance point is connected (as shown in Figure 2) with multitube and enters slurry, the port of export
Be connected pulp with cloth slurry branch pipe, and entrance point is highly big, and the port of export is highly small, so that slurry, which gradually tapers up, enters cloth slurry branch pipe
In, angle of throat α is 20 °, gradually tapers up the mixing being also beneficial to from the dilution water that concentration adjustment module enters and slurry stream, Ran Houzhuan
180 ° of angles enter in cloth slurry branch pipe that (in Fig. 7, filled arrows represent the flow direction of dilution water, and hollow arrow represents the stream of slurry
Dynamic direction).
The dilution water adding set and method of above-mentioned adjusting paper cross direction ration are in use, its operation principle is specific such as
Under：
The concentration adjustment module of head box is arranged on the top (or its upper and lower) of cloth slurry branch pipe, comes from dilution supply mains
Dilution water, enter dilution water branch pipe after diluting water regulating valve adjusts concentration, then pass through the dilution in concentration adjustment module
Aquaporin is entered in cloth slurry house steward, and the flow direction of dilution water is starched in house steward with cloth starches the in opposite direction of stream, and house steward is starched in cloth
Middle dilution water turns 180 ° after being mixed with slurry stream, is starched subsequently into cloth in branch pipe；
Each corresponding row cloth slurry branch pipe of dilution aquaporin, and positioned at the surface of each column cloth slurry branch pipe (or surface and
Underface), the slurry concentration of row cloth slurry branch pipe is adjusted, local slurry concentration control is adjusted by adding dilution water so as to reach
The purpose of paper cross direction ration；
Because dilution water adds in cloth starches house steward, rather than is directly added into cloth slurry branch pipe, therefore the addition of dilution water
Do not influence the slurry flow in cloth slurry branch pipe completely, avoid Yin Gebu in head box from starching crossing current caused by branch pipe changes in flow rate to dilution
The influence of water regulating effect.
Embodiment 2
The dilution water adding set of a kind of adjusting paper cross direction ration of the present embodiment, compared with Example 1 compared with it is different
Part is：
Two groups of dilution waters are provided with as shown in Fig. 8 or Fig. 9, in the device and add components, at the same in the top of cloth slurry branch pipe and
Lower section is mounted on concentration adjustment module, and it is relatively more (row of such as Fig. 4~6, figure in be shown as 3 rows) to starch the row of branch pipe for cloth
When, there are two groups of dilution water addition components, there is dilution water to enter in cloth slurry house steward above and below cloth slurry branch pipe, with slurry
Turn 180 ° of angles after mixing again to starch in branch pipe 7 into cloth, which increase the uniformity of slurry concentration in each arrangement slurry branch pipe.
As described above, the present invention can be better realized, above-described embodiment is only presently preferred embodiments of the present invention, is not used
To limit the practical range of the present invention；I.e. all equivalent changes and modifications made according to present invention, all will for right of the present invention
Scope claimed is asked to be covered.
Claims (7)
1. the dilution water adding set of a kind of adjusting paper cross direction ration, it is characterised in that total including head box, dilution water
Pipe, dilution water branch pipe and concentration adjustment module, head box include the cloth slurry house steward being connected and Bu slurry branch pipes, and cloth slurry branch pipe is in more
Row are arranged side by side, and concentration adjustment module is provided with multiple dilution aquaporins, each above cloth slurry branch pipe in concentration adjustment module
It is corresponding above row cloth slurry branch pipe to dilute aquaporin；Multiple dilution water branch pipes are distributed with dilution supply mains, each dilution
Water branch pipe is starched house steward with cloth by a dilution aquaporin and connected, and the flow direction of dilution water is starched in branch pipe with cloth in dilution aquaporin starches
The flow direction of material is opposite；
The concentration adjustment module is rectangular plate-like structure, and multiple conduct dilution waters are offered in concentration adjustment module and are led to
The groove in road, each aquaporin that dilutes is L-shaped, and dilution aquaporin both ends are connected with dilution water branch pipe and cloth slurry house steward respectively；
In the dilution aquaporin, the one end being connected with cloth slurry house steward is circular channel or rectangular channel；
The head box also includes plenum chamber, turbulent flow generator and lip area, cloth slurry house steward, cloth slurry branch pipe, plenum chamber, turbulent flow hair
Raw device and lip area are sequentially connected according to the flow direction of slurry.
2. the dilution water adding set of a kind of adjusting paper cross direction ration according to claim 1, it is characterised in that described
Diluting supply mains, dilution water branch pipe and concentration adjustment module composition dilution water addition component, dilution water addition component has two groups, point
Not She Yu head box both sides up and down；Wherein, two concentration adjustment modules are respectively arranged on the both sides up and down of cloth slurry branch pipe, each column cloth
Respectively there is a dilution aquaporin above and below slurry branch pipe.
A kind of 3. dilution water adding set of adjusting paper cross direction ration according to claim 1 or claim 2, it is characterised in that
The dilution supply mains is taper water inlet manifold, and dilution water branch pipe is round tube；Each dilution water branch pipe and the company of dilution supply mains
The place of connecing is respectively equipped with diluting water regulating valve, each external dilution water control system of diluting water regulating valve.
4. the dilution water adding set of a kind of adjusting paper cross direction ration according to claim 1, it is characterised in that described
The radial section area for diluting aquaporin is 0.5~1 times of the radial section area that cloth starches branch pipe.
5. the dilution water adding set of a kind of adjusting paper cross direction ration according to claim 1, it is characterised in that described
The section of cloth slurry house steward is trapezoidal, and the entrance point of cloth slurry house steward is highly more than port of export height, and port of export height is relative to import
The angle of throat for holding height is 15~30 °.
6. the dilution water adding set of a kind of adjusting paper cross direction ration according to claim 5, it is characterised in that described
Cloth starches the external concentration pulp distributor of entrance point of house steward.
7. a kind of dilution water addition side of adjusting paper cross direction ration is realized according to any one of claim 1~6 described device
Method, it is characterised in that it is total that the dilution water that dilution supply mains provides enters cloth slurry after the distribution of dilution water branch pipe, by dilution aquaporin
Guan Zhong；In cloth starches house steward, dilution water is mixed into after will entering the slurry of cloth slurry branch pipe, is sent out by cloth slurry branch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610279061.5A CN105755886B (en) | 2016-04-29 | 2016-04-29 | The dilution water adding set and method of a kind of adjusting paper cross direction ration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610279061.5A CN105755886B (en) | 2016-04-29 | 2016-04-29 | The dilution water adding set and method of a kind of adjusting paper cross direction ration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105755886A CN105755886A (en) | 2016-07-13 |
| CN105755886B true CN105755886B (en) | 2018-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610279061.5A Expired - Fee Related CN105755886B (en) | 2016-04-29 | 2016-04-29 | The dilution water adding set and method of a kind of adjusting paper cross direction ration |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197236B (en) * | 2021-11-22 | 2023-07-14 | 浙江华章科技有限公司 | Method and device for adjusting paper banner quantification by adding dilution water in equal quantity |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1884687A (en) * | 2006-07-07 | 2006-12-27 | 华南理工大学 | Device for roughly regulating or fine adjustment for paper banner through adding diluent water |
| CN101565911A (en) * | 2009-05-06 | 2009-10-28 | 华南理工大学 | Method and device for adjusting ration of paper banners by leading out stock flow and adding dilution water |
| CN102168390A (en) * | 2011-05-06 | 2011-08-31 | 华南理工大学 | Device for adjusting paper cross direction ration and fiber orientation |
| CN203715990U (en) * | 2013-12-30 | 2014-07-16 | 宋俊富 | Pulp flowing device used for paper manufacturing machine |
| CN205617151U (en) * | 2016-04-29 | 2016-10-05 | 华南理工大学 | Dilution water of adjusting paper banner ration usefulness adds device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008043145A1 (en) * | 2008-10-24 | 2010-04-29 | Voith Patent Gmbh | Two-layer casserole for a machine for producing a two-layer fibrous web |
-
2016
- 2016-04-29 CN CN201610279061.5A patent/CN105755886B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1884687A (en) * | 2006-07-07 | 2006-12-27 | 华南理工大学 | Device for roughly regulating or fine adjustment for paper banner through adding diluent water |
| CN101565911A (en) * | 2009-05-06 | 2009-10-28 | 华南理工大学 | Method and device for adjusting ration of paper banners by leading out stock flow and adding dilution water |
| CN102168390A (en) * | 2011-05-06 | 2011-08-31 | 华南理工大学 | Device for adjusting paper cross direction ration and fiber orientation |
| CN203715990U (en) * | 2013-12-30 | 2014-07-16 | 宋俊富 | Pulp flowing device used for paper manufacturing machine |
| CN205617151U (en) * | 2016-04-29 | 2016-10-05 | 华南理工大学 | Dilution water of adjusting paper banner ration usefulness adds device |
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| Publication number | Publication date |
|---|---|
| CN105755886A (en) | 2016-07-13 |
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