CN2394944Y - Long net double roll pulp extruder - Google Patents
Long net double roll pulp extruder Download PDFInfo
- Publication number
- CN2394944Y CN2394944Y CN 99246511 CN99246511U CN2394944Y CN 2394944 Y CN2394944 Y CN 2394944Y CN 99246511 CN99246511 CN 99246511 CN 99246511 U CN99246511 U CN 99246511U CN 2394944 Y CN2394944 Y CN 2394944Y
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Abstract
The utility model relates to a long net double-roller pulp extruder which is a pulp washing device of a paper-making machine. The long net double-roll pulp extruder comprises a machine frame, a tension roller supported by the machine frame, a pulp flow box, a gas hood, a vacuum box, a correcting roller and a main driving roller, wherein, a net is supported by the tension roller, the correcting roller and the main driving roller. The long net double-roll pulp extruder is characterized in that the inner side of the main driving roller is provided with another rotary roller which reverses synchronously with the main driving roller. The waste liquor extraction rate of the utility model is enhanced by 8-12% compared with the prior art; the net is not easy to suck and stop, so that the operation of the utility model is reliable; with high concentration of pulp extrusion, the utility model can simplify the device processes of bleaching processes of medium and high concentration.
Description
The utility model belongs to papermaking equipment, relates generally to washing device.
In the paper industry of prior art, because fourdrinier wire formula vacuum pulp washing machine is to have utilized principle,displacement, with the waste liquid in the pulp washing water multistage counter current displacement extraction paper pulp, approach flow is convenient, there are not to fall problems such as net, heap slurry, paste net in reduced investment, has therefore obtained applying widely.But, it is low that fourdrinier wire formula vacuum pulp washing machine goes out net concentration, be generally 12～14%, the waste liquid taken away of paper pulp is many like this, and the paper pulp wash degree is low, net concentration as further the raising, not only can accelerate the wearing and tearing of net, net also is easy to be inhaled stop, and net is skidded on live-rollers, therefore, the paper pulp of fourdrinier wire formula vacuum pulp washing machine goes out net concentration and be difficult to surpass 17%.
The purpose of this utility model provides a kind of net concentration height that goes out, and the waste liquid that paper pulp is taken away is few, the fourdrinier wire formula Var-nip press that the paper pulp wash degree is high.
The utility model comprises that frame reaches idler roller, head box, gas hood, vacuum tank, corrector roll and the main live-rollers by frame support, net is supported by idler roller, corrector roll and main live-rollers, the inboard that it is characterized in that main live-rollers is provided with another live-rollers, and itself and main live-rollers reverse synchronously.
The outer round surface of the utility model master live-rollers and live-rollers is provided with filter plate with holes, and filter plate is supported by a plurality of annulus with axis normal.The two ends of main live-rollers and live-rollers are supported by bearing block, and wherein the piston rod of an end of a live-rollers and pneumatic tyre is hinged.The filter opening diameter of the filter plate of main live-rollers and live-rollers setting is 3～10mm, and percent opening is 20～50%, and it is the corrosion resistant plate of 2～5mm that filter plate adopts thickness.Live-rollers is connected with idler roller with corrector roll by net.Also can wrap one deck diameter 1～2mm on the roll surface of live-rollers, thickness is the stainless steel porous plate of 1mm, and roll surface is installed scraper, and removes net, corrector roll and the idler roller of increase.
The utility model is owing to organically combine the principle,displacement of fourdrinier wire formula vacuum pulp washing machine and the high dense shove principle of Var-nip press simultaneously on an equipment, so have: the waste liquid recovery rate has improved more than 8～12% than prior art; Net is not easy to be inhaled to stop, and is reliable; Pulp concentration height, dense in can simplifying, high density bleaching process equipment flow process.
The utility model is described in further detail below in conjunction with accompanying drawing:
Accompanying drawing is the structural representation of the utility model embodiment.
Among the figure, the 1st, idler roller, 2 nets, 3 head boxs, 4 gas hoods, 5 vacuum tanks, 6 frames, 7 corrector rolls, 8 live-rollerss, 9 main live-rollerss, 10 nets, 11 corrector rolls, 12 idler rollers, 13 paper pulp
Usual manner connects goes up pipe, line, centrifugal blower, water pump, water under high pressure towards servicing units such as nets.The mode of operation and the course of work of multistage counter current displacement washing part are same as the prior art.Net 2 is supported by idler roller 1 corrector roll 7 and main live-rollers 9, net 10 is supported by live-rollers 8 corrector rolls 11 and idler roller 12, paper pulp 13 flows out in head box 3, by gas hood 4 and the vacuum tank 5 that supports by frame 6, enter the shove district between main live-rollers 9 and the live-rollers 8, paper pulp is by the shove district, and the waste liquid in the paper pulp is squeezed and is extruded, and makes paper pulp go out net concentration and is easier to reach more than 20%.The washings that the waste liquid of extruding and last washing section are extracted out converge, and are used for the leading portion washing, have increased the water yield of displacement washing, because of dilution gfactor is still lower, so the liquid waste concentration height that extracts.The axle head of main live-rollers 9 and live-rollers 8 is installed worm gear respectively, and its screw line is opposite, two worm gears with modulus double-thread worm engagement, thereby realize run-in synchronism.By regulating pneumatic tyre pressure, the linear pressure of controlling between main live-rollers 9 and the live-rollers 8 is 100～200N/mm.The vacuum tank of live-rollers 8 bottoms can be with the paper pulp thickness adjusted.The utility model can be 2～6 washing sections, in the time of 2～4, is usually used in the washing of bleached pulp, in the time of 5～6 sections, is usually used in the extraction of black liquor.
Claims (5)
1, a kind of long net double roll press master, comprise that frame (6) reaches idler roller (1), head box (3), gas hood (4), vacuum tank (5), corrector roll (7) and the main live-rollers (9) by frame support, net (2) is supported by idler roller, corrector roll and main live-rollers, the inboard that it is characterized in that main live-rollers (9) is provided with another live-rollers (8), and itself and main live-rollers reverse synchronously.
2, long net double roll press master according to claim 1 is characterized in that the outer round surface of main live-rollers (9) and live-rollers (8) is provided with filter plate with holes, and filter plate is supported by a plurality of annulus with axis normal.
3, long net double roll press master according to claim 1 is characterized in that the two ends of main live-rollers (9) and live-rollers (8) are supported by bearing block, and wherein the piston rod of an end of a live-rollers and pneumatic tyre is hinged.
4, long net double roll press master according to claim 2 is characterized in that the filter opening diameter of the filter plate that main live-rollers (9) and live-rollers (8) are provided with is 3～10mm, and percent opening is 20～50%.
5, long net double roll press master according to claim 2 is characterized in that live-rollers (8) is connected with idler roller (12) with corrector roll (11) by net (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99246511 CN2394944Y (en) | 1999-09-21 | 1999-09-21 | Long net double roll pulp extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99246511 CN2394944Y (en) | 1999-09-21 | 1999-09-21 | Long net double roll pulp extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2394944Y true CN2394944Y (en) | 2000-09-06 |
Family
ID=34032113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99246511 Expired - Fee Related CN2394944Y (en) | 1999-09-21 | 1999-09-21 | Long net double roll pulp extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2394944Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101589194B (en) * | 2007-01-25 | 2013-04-24 | 沃依特专利有限责任公司 | Method for dehydrating pulp, and dehydration machine for carrying out the method |
-
1999
- 1999-09-21 CN CN 99246511 patent/CN2394944Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101589194B (en) * | 2007-01-25 | 2013-04-24 | 沃依特专利有限责任公司 | Method for dehydrating pulp, and dehydration machine for carrying out the method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |