CN107419585A - A kind of improved meniscus foudrinier former - Google Patents
A kind of improved meniscus foudrinier former Download PDFInfo
- Publication number
- CN107419585A CN107419585A CN201710877708.9A CN201710877708A CN107419585A CN 107419585 A CN107419585 A CN 107419585A CN 201710877708 A CN201710877708 A CN 201710877708A CN 107419585 A CN107419585 A CN 107419585A
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- CN
- China
- Prior art keywords
- felt
- foudrinier
- former
- forming net
- format roll
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- D21F1/10—Wire-cloths
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/08—Pressure rolls
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- Paper (AREA)
Abstract
The present invention proposes a kind of improved meniscus foudrinier former, solves the problems, such as that dewatering efficiency is low in the prior art, equipment cost is high.The improved meniscus foudrinier former includes the format roll of rotation, the forming net that felt is pasted with the partial outer face of the format roll and is attached on felt outer surface, it is provided between felt and forming net to the head box for spraying paper pulp therebetween, also include the pressure roller to be offseted with the format roll, the subtracting point of the pressure roller and format roll is located at after the contact point of felt and forming net；Wrap angle of the forming net on the format roll is more than or equal to 60 °.The improved meniscus foudrinier former of the present invention is simple in construction, easy to use, has preferable dehydrating effect and efficiency, has good practicality.
Description
Technical field
The present invention relates to papermaking equipment technical field, particularly relates to a kind of improved meniscus foudrinier former.
Background technology
Foudrinier former is equipment more conventional in papermaking equipment, generally refers to adopt in l Water Paper page forming process
With forming net and felt, the former being dehydrated simultaneously by two sides.As shown in figure 1, the knot of as traditional foudrinier former
Structure schematic diagram, it sprays paper pulp by head box 1 between forming net 2 and felt 3, in the centrifugation of the faster format roll 4 of rotating speed
Under power effect, centrifugal dehydration is carried out by forming net 2, l Water Paper page is clamped tightly between forming net 2 and felt 3 during this,
After forming net 2 separates with felt 3, l Water Paper page 5 is adhered on the upper surface of felt 3 and transported out, and now, l Water Paper page 5 is done
Degree is subsequently absorbed water by suction flat box 6, the mass dryness fraction of l Water Paper page is reached 20% or so 15% or so again, then to wet
Page carries out at least one of mechanical expression dehydration, the mass dryness fraction of l Water Paper page is reached 30-45% or so, finally again conveys l Water Paper page
Enter drying portion to be dried.Shortcomings be present in this structure：
One, which has to be by three separate stages, could complete the physics dehydration of l Water Paper page, i.e. centrifugal dehydration
Stage, vacuum dehydration stage and mechanical expression water smoking, not only device structure is complicated, and power consumption is big, mainly includes
The power that vavuum pump power consumption in itself and the panel of suction flat box 6 and the mechanical friction at the back side of felt 3 are wasted；
Second, suction flat box 6 tightly adsorbs felt 5, frictional force increases, and reduces the service life of felt 3；
Third, leaving the l Water Paper page after forming net 2 enters back into mechanical expression portion, due to losing the tension force of forming net 2 to l Water Paper
The bend fixing effect of page, greatly limit the raising of mechanical expression line pressure, therefore for thicker page, in order to prevent pressing
The water gone out washes out l Water Paper page, and the line pressure of single pressing is unsuitable excessive, must not be not provided with multiple tracks line pressure for this and be continuously increased
Mechanical expression portion complete the press dewatering process to l Water Paper page, further increase equipment manufacturing cost and press section power disappear
Consumption.
In addition, as shown in Fig. 2-Fig. 6, for showing for several relatively conventional mechanical expression dehydrated structures in the prior art
It is intended to, this several structure is installed on the rear of suction flat box 6 shown in Fig. 1, realizes the mechanical expression dehydration to l Water Paper page.
Wherein, Fig. 2 show reversely dehydration plain press technology, although it has the advantages of simple in construction, low cost,
There is also it is larger the defects of：Although structure setting squeezing eccentric throw, reduces effective squeeze force, reduces squeezing simultaneously
Effect, the water pressed out also easily washes away l Water Paper page.
Fig. 3 show suction press technology, and it opens up some perforates on the pressure roller of lower section, using vacuum by extrusion
Water suctions out vertically downward, although this structure avoids reverse dehydration, reduces the conquassation phenomenon to l Water Paper page to a certain extent,
But cost is higher, power consumption is high, and device structure is complicated, and is limited by percent opening, and squeeze force also receives greatly
Limitation.
Fig. 4 show wide nip press technology, due to frictional force be present between conveyer belt 7 and briquetting 8, causes structure to answer
Miscellaneous, the shortcomings that power consumption is high, product cost is high.
Fig. 5 show blind drilled press technology, and it opens up some water storage holes on the pressure roller of lower section, and the water of extrusion can be kept in
In these water storage holes, final discharge, although it falls within the one kind being vertically dehydrated, without the booster action of vacuum, take off
Water effect is also lower than suction press, and making also bothers.It is another more similar to blind drilled press for grooved press technology, its
It is not perforate on pressure roller, but opens up groove, the water pressed out is temporarily stored in groove, but the water of this structure is easy to by page
Suck back, the problem of rewetting occur.
Fig. 6 show lining net Technology in Pressing, and it is between two pressure rollers, one layer of lining net 9 of the following setting of felt 3, serves as a contrast net 9
On equally open up some mesh, squeezing out the water come can be temporarily stored in these mesh, due to the limited volume of mesh, often
It can not meet requirement.
The content of the invention
The present invention proposes a kind of improved meniscus foudrinier former, solve dewatering efficiency in the prior art it is low,
The problem of equipment cost is high.
The technical proposal of the invention is realized in this way：A kind of improved meniscus foudrinier former, including rotation
Format roll, the forming net for being pasted with felt and being attached on felt outer surface on the partial outer face of the format roll,
It is provided between felt and forming net to the head box for spraying paper pulp therebetween, in addition to the squeezing to be offseted with the format roll
Roller, the subtracting point of the pressure roller and format roll are located at after the contact point of felt and forming net；
Wrap angle of the forming net on the format roll is more than or equal to 60 °.
Separated as a preferred embodiment, the pressure roller are located at felt with the subtracting point of format roll with format roll
Overlapped before point or with the burble point.
It is provided with and is used for forming net as another preferred embodiment, after the burble point of the felt and format roll
On l Water Paper page to the transfer device shifted on felt.
As another preferred embodiment, the transfer device is the blowing device for being attached to the forming net back side.
As another preferred embodiment, the line pressure between the pressure roller and format roll is more than or equal to
400kgf/cm。
As another preferred embodiment, the line pressure between the pressure roller and format roll is more than or equal to
500kgf/cm。
As another preferred embodiment, the line pressure between the pressure roller and format roll is more than or equal to
600kgf/cm。
As another preferred embodiment, the tension force of the forming net is more than or equal to 10kgf/cm.
As another preferred embodiment, the tension force of the forming net is more than or equal to 15kgf/cm.
After employing above-mentioned technical proposal, the beneficial effects of the invention are as follows：The present invention is utilized between format roll and pressure roller
Mechanical presses dehydration can be carried out, directly reaches mechanical dehydration 48-50% limit mass dryness fraction, than traditional various squeezing modes
Highest mass dryness fraction is at least high 2 percentage points, and the 50-70% that economizes on electricity, steam saving consumption 8-40%, extends the service life of felt
1-2 times, 1-2 times of the wet strength of page is improved, improves the dry strength at least 20% of page, the rate of manufacturing paper with pulp for improving page (is reduced disconnected
Head) 1-3 percentage points, the cost of equipment is reduced to original 1/2 to 1/5, substantially reduces manufacturing cost, the maintenance cost of equipment
Original less than 1/5 is reduced to, equipment operation is simpler, and the labor intensity and operation difficulty of worker is lower, due to without using true
The high noise equipment such as empty pump, the operating environment of worker are substantially improved, and wrap angle of the forming net on format roll is set greater than
Or equal to 60 ° the centrifugal force of format roll can be made full use of to be dehydrated, dehydration cost is lower.
Conference is crossed due to line pressure the few fibers of l Water Paper page are pressed into the mesh of forming net, therefore, transfer dress is set
Putting can prevent l Water Paper page to be attached on the bigger felt surface of specific surface area.
Transfer device can reduce the abrasion to being molded net surface using the blowing device for being attached to the forming net back side, reduce
Power consumption, extend the service life of forming net.
In general, paper machine routine highest dehydration line pressure is no more than 300kgf/cm, pressure roller and format roll of the present invention
Between line pressure can be easily reached more than 400, dehydrating effect is more preferable, dehydration it is more thorough.
In general, the tension force of forming net is no more than 10kgf/cm, and the transnormal high-tension of forming net of the present invention can be with
Ensure under conditions of high line pressure, do not destroy l Water Paper page.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation of prior art foudrinier former；
Fig. 2 is reversely dehydration plain press technical pattern schematic diagram；
Fig. 3 is suction press technical pattern schematic diagram；
Fig. 4 is wide nip press technical pattern schematic diagram；
Fig. 5 is blind drilled press technical pattern schematic diagram；
Fig. 6 is lining net Technology in Pressing structural representation；
Fig. 7 is the structural representation of the embodiment of the present invention one；
Fig. 8 is the structural representation of the embodiment of the present invention two；
Fig. 9 is the structural representation of the embodiment of the present invention three；
In figure：1- head boxs；2- forming nets；3- felt；4- format rolls；5- l Water Paper pages；6- suction flat boxs；7- is transmitted
Band；8- briquettings；9- serves as a contrast net；10- pressure roller；11- blowing devices；12- air intake devices.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Embodiment one：
As shown in fig. 7, the structural representation of the embodiment one for the improved meniscus foudrinier former of the present invention, figure
Shown in arrow be all parts the direction of motion, wave represents l Water Paper page (follow-up embodiment is identical), the former bag
The format roll 4 of rotation is included, felt 3 is pasted with the partial outer face of the format roll 4 and is attached on the outer surface of felt 3
Forming net 2, between felt 3 and forming net 2 be provided with to therebetween spray paper pulp head box 1, in addition to the shaping
The pressure roller 10 that roller 4 offsets, the subtracting point of the pressure roller 10 and format roll 4 be located at felt 3 and forming net 2 contact point it
Afterwards, wrap angle (angle A i.e. in figure) of the forming net 2 on the format roll 4 is more than or equal to 60 °.Head box 1 sprays
After paper pulp out enters between felt 3 and forming net 2, the centrifugal action for first passing through format roll 4 realizes dehydration, this
Dehydration cost is relatively low, sets drip tray (not shown) in the side of format roll 4, vacuum furnace can be selected in format roll 4 herein.
L Water Paper page is sandwiched between felt 3 and forming net 2, when reaching the contact point of format roll 4 and pressure roller 10, that is, is carried out machinery and is squeezed
Press-dehydrating, through actual experiment data verification, l Water Paper page can directly reach mechanical dehydration 48-50% limit mass dryness fraction, than tradition
Various squeezing modes highest mass dryness fraction it is at least high 2 percentage points, and economize on electricity 50-70%, steam saving consumption 8-40%, prolong
1-2 times of the service life of boa, 1-2 times of the wet strength of page is improved, improve the dry strength at least 20% of page, improve page
1-3 percentage points of rate of manufacturing paper with pulp (reduce broken end), the cost of equipment is reduced to original 1/2 to 1/5, substantially reduces and is manufactured into
This, the maintenance cost of equipment is reduced to original less than 1/5, and equipment operation is simpler, the labor intensity and operation difficulty of worker
It is lower, due to being substantially improved without using the high noise equipment such as vavuum pump, the operating environment of worker.
In the embodiment, the burble point of pressure roller 10, the subtracting point of format roll 4 and felt 3, format roll 4 is to overlap
, certainly, pressure roller 10 can also be set forward a bit so that the subtracting point of pressure roller 10 and format roll 4 be located at felt 3 and into
Before the burble point of type roller 4 (after the signified direction of each arrow is defined as herein).
Embodiment two：
As shown in figure 8, being the structural representation of embodiment two, the difference of the embodiment and embodiment one is：The implementation
The felt 3 of example is fully transferred on pressure roller 10 with forming net 2 from format roll 4, is then also provided with transfer device, the transfer
Device is used for the l Water Paper page on forming net 4 to shifting on felt 3, and this is due to the line pressure between pressure roller 10 and format roll 4
Power is crossed conference and is pressed into the few fibers of l Water Paper page in the mesh of forming net 2, and the transfer device is preferably to be attached to forming net 2 to carry on the back
The blowing device 11 in face, the few fibers in the mesh of forming net 2 can be blown on felt 3.Certainly, also can be the one of felt 3
Side sets air intake device 12, can equally serve the same role, but this structure easily increase felt 3 and air intake device 12 it
Between frictional force, cause power consumption excessive, while can also wear felt 3, shorten the service life of felt 3.
Embodiment three：
As shown in figure 9, be the structural representation of embodiment three, in the embodiment, felt 3 and forming net 2 are from pressure roller 10
Do not separated immediately after being transferred out with the subtracting point of format roll 4, again by transfer device (blowing device 11 or air intake device
12) after effect, then by felt 3 l Water Paper page 5 is sent out.
In general, paper machine routine highest dehydration line pressure is no more than 300kgf/cm, in three kinds of embodiments of the present invention,
Line pressure between pressure roller 10 and format roll 4 could be arranged to be not less than 400kgf/cm or 500kgf/cm or 600kgf/cm,
Realize more preferable dehydrating effect.
In addition, the tension force of forming net 2 is usually no more than 10kgf/cm, and in three kinds of embodiments of the invention, the tension force of forming net 2
It may be configured as being not less than 10kgf/cm or 15kgf/cm, it is ensured that the bar of high line pressure between pressure roller 10 and format roll 4
Under part, l Water Paper page is not destroyed.
The improved meniscus foudrinier former of the present invention is simple in construction, easy to use, has preferable dehydrating effect
And efficiency, there is good practicality.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (9)
1. a kind of improved meniscus foudrinier former, include the format roll of rotation, the partial outer face of the format roll
On the forming net that is pasted with felt and is attached on felt outer surface, be provided between felt and forming net to spraying therebetween
Penetrate the head box of paper pulp, it is characterised in that：Also include the pressure roller to be offseted with the format roll, the pressure roller and format roll
Subtracting point is located at after the contact point of felt and forming net；
Wrap angle of the forming net on the format roll is more than or equal to 60 °.
2. improved meniscus foudrinier former as claimed in claim 1, it is characterised in that：The pressure roller and shaping
The subtracting point of roller is located at felt and overlapped with before format roll burble point or with the burble point.
3. improved meniscus foudrinier former as claimed in claim 1, it is characterised in that：The felt and format roll
Burble point after be provided with and be used for the l Water Paper page on forming net to the transfer device shifted on felt.
4. improved meniscus foudrinier former as claimed in claim 3, it is characterised in that：The transfer device is attached
The blowing device at the forming net back side.
5. improved meniscus foudrinier former as claimed in claim 1, it is characterised in that：The pressure roller and shaping
Line pressure between roller is more than or equal to 400kgf/cm.
6. improved meniscus foudrinier former as claimed in claim 1, it is characterised in that：The pressure roller and shaping
Line pressure between roller is more than or equal to 500kgf/cm.
7. improved meniscus foudrinier former as claimed in claim 1, it is characterised in that：The pressure roller and shaping
Line pressure between roller is more than or equal to 600kgf/cm.
8. improved meniscus foudrinier former as claimed in claim 1, it is characterised in that：The tension force of the forming net
More than or equal to 10kgf/cm.
9. improved meniscus foudrinier former as claimed in claim 1, it is characterised in that：The tension force of the forming net
More than or equal to 15kgf/cm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710877708.9A CN107419585A (en) | 2017-09-26 | 2017-09-26 | A kind of improved meniscus foudrinier former |
| PCT/CN2018/107626 WO2019062763A1 (en) | 2017-09-26 | 2018-09-26 | Improved crescent twin-wire former for paper machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710877708.9A CN107419585A (en) | 2017-09-26 | 2017-09-26 | A kind of improved meniscus foudrinier former |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107419585A true CN107419585A (en) | 2017-12-01 |
Family
ID=60435944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710877708.9A Pending CN107419585A (en) | 2017-09-26 | 2017-09-26 | A kind of improved meniscus foudrinier former |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107419585A (en) |
| WO (1) | WO2019062763A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019062763A1 (en) * | 2017-09-26 | 2019-04-04 | 深圳德为纤维环保科技有限公司 | Improved crescent twin-wire former for paper machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI44084B (en) * | 1963-05-06 | 1971-04-30 | Bowaters Pulp & Paper Mills | |
| US3795576A (en) * | 1971-06-21 | 1974-03-05 | Mitsuoki Iron Works Co Ltd | Cylindrical screen method for paper manufacturing |
| US3923595A (en) * | 1970-09-22 | 1975-12-02 | Shizuoka Kogyo Co Ltd | High speed multi-cylinder machine for manufacturing a multi-ply paper |
| JPH08302581A (en) * | 1995-05-08 | 1996-11-19 | Mitsubishi Heavy Ind Ltd | Centrifugal paper-making apparatus |
| CN1948613A (en) * | 2006-11-10 | 2007-04-18 | 华南理工大学 | Internet vacuum drum shaping apparatus used for high speed thin sheet toilet paper machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035147A (en) * | 1988-02-12 | 1989-08-30 | 宋大兴 | Press device of paper-making machine |
| CN2052415U (en) * | 1988-07-18 | 1990-02-07 | 王锡元 | Cylinder machine paper-shaper with clip wire-cloth |
| CN1465809A (en) * | 2002-06-30 | 2004-01-07 | 李风宁 | Web part of high speed paper-making machine |
| CN201106134Y (en) * | 2007-12-07 | 2008-08-27 | 天津天轻造纸机械有限公司 | Low quantitative papers pressure cylinder shaper |
| CN205636346U (en) * | 2016-05-20 | 2016-10-12 | 浙江兴舟纸业有限公司 | Cylinder machine's last network system |
| CN107419585A (en) * | 2017-09-26 | 2017-12-01 | 深圳德为智造科技有限公司 | A kind of improved meniscus foudrinier former |
-
2017
- 2017-09-26 CN CN201710877708.9A patent/CN107419585A/en active Pending
-
2018
- 2018-09-26 WO PCT/CN2018/107626 patent/WO2019062763A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI44084B (en) * | 1963-05-06 | 1971-04-30 | Bowaters Pulp & Paper Mills | |
| US3923595A (en) * | 1970-09-22 | 1975-12-02 | Shizuoka Kogyo Co Ltd | High speed multi-cylinder machine for manufacturing a multi-ply paper |
| US3795576A (en) * | 1971-06-21 | 1974-03-05 | Mitsuoki Iron Works Co Ltd | Cylindrical screen method for paper manufacturing |
| JPH08302581A (en) * | 1995-05-08 | 1996-11-19 | Mitsubishi Heavy Ind Ltd | Centrifugal paper-making apparatus |
| CN1948613A (en) * | 2006-11-10 | 2007-04-18 | 华南理工大学 | Internet vacuum drum shaping apparatus used for high speed thin sheet toilet paper machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019062763A1 (en) * | 2017-09-26 | 2019-04-04 | 深圳德为纤维环保科技有限公司 | Improved crescent twin-wire former for paper machine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019062763A1 (en) | 2019-04-04 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 518000 Bantian street, Longgang, Shenzhen, Guangdong province Tianan cloud Valley phase one AI innovation Hall (2 201) Applicant after: Shenzhen De Wei fiber environmental protection technology Co., Ltd. Address before: 518100 Guangdong Shenzhen Longgang District Bantian Street snow Gang Road 2018 Tianan cloud Valley 1 B block 1F Applicant before: Shenzhen wisdom Technology Co., Ltd. |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |
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| RJ01 | Rejection of invention patent application after publication |