CN2320649Y - Vertical digester for paper-making pulping - Google Patents
Vertical digester for paper-making pulping Download PDFInfo
- Publication number
- CN2320649Y CN2320649Y CN 98232583 CN98232583U CN2320649Y CN 2320649 Y CN2320649 Y CN 2320649Y CN 98232583 CN98232583 CN 98232583 CN 98232583 U CN98232583 U CN 98232583U CN 2320649 Y CN2320649 Y CN 2320649Y
- Authority
- CN
- China
- Prior art keywords
- filter screen
- annular filter
- pot body
- paper
- cylindrical pot
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a vertical digester for paper-making and pulping, which is mainly characterized in that a supporting pipe is arranged in a cylindrical pan, and the supporting pipe is provided with an annular filter screen which is concentric with the cylindrical pan. The utility model has wide adapting range of paper making raw materials, little pollution, little energy consumption, the capability of pulping, heat exchange in the pan and washing in one step, water saving and high pulping efficiency.
Description
The utility model relates to a kind of paper-making pulping vertical digester, belongs to paper pulp manufacturing equipment technical field.
In the production process of manufacturing chemistry slurry or semi-chemical pulp, all to carry out delignification to the fibrous raw material that is used for slurrying and handle.The High Temperature High Pressure digestion process mainly is the process of delignification.At present, the ryegrass pulping digestion process mainly carries out in rotary spherical digester, still, because the rotary spherical digester volume is little, difficult heat energy recovery, production efficiency is low.The wheat straw seepage of water is poor, causes cooking waste liquor to recycle quite difficulty.Digester is to be that the cylindrical pot body of taper is respectively equipped with charging aperture and grout outlet in two ends up and down in the bottom, and the side is provided with air intake and feed tube, and mid portion is provided with screen pack in cylindrical pot body, and the outside is provided with liquid pumping hole.This pulp cooking Cooker structure is simple, volume is big, the heat energy recovery rate height, but it can only be applicable to materials such as the good wood chip of drainability, bamboo chip, reed, this pulp cooking pot is pulping technique with an organic solvent, can all eliminate the pollution of sulfurous gas to atmosphere, and the basic pollution of eliminating water quality, environment for human survival can be improved greatly.Wheat straw can't be used at digester because of its drainability difference.The China's Forest Resources scarcity, the wheat straw resource is extremely abundant, utilize ryegrass pulping and pollution-free be the problem that we press for solution.
The purpose of this utility model just is to provide a kind of paper-making pulping vertical digester, and it not only is suitable for drainability material slurrying such as wood chip, bamboo chip, reed preferably, and is especially suitable especially to ryegrass pulping.
For achieving the above object, the utility model can be realized by following scheme: the cylindrical pot body top that in the bottom is taper is provided with charging aperture, upper side is provided with feed tube and steam bleeding mouth, is provided with grout outlet in the tapered lower portion of cylindrical pot body, and the side is provided with air intake and feed tube.In cylindrical pot body, be provided with stay pipe, on stay pipe, be provided with and the body concentric annular filter screen of cylindrical pot.Set stay pipe is radial in cylindrical pot body; Annular filter screen has hollow interlayer, and annular filter screen is divided into center annular filter screen, intermediate annular filter screen and boundary layer annular filter screen.
The utility model has the advantages that; Simple in structure, pollute little, can carry out pulping and digesting to the herbaceous stem material of drainability difference, slurrying efficient height, energy consumption is low, and the utility model can be with thermal diffusion (displacement) in slurrying, the pot, disposable the finishing of washing, make organic solvent (Ethanol Method, the ester method) the Recovery of Organic Solvent problem is resolved in the slurrying, and the utility model can be produced herbaceous stem material paper pulp with organic solvent method, alleviates the pollution of careless class pulping and paper-making factory to environment greatly.
The drawing explanation:
Accompanying drawing 1 is the utility model overall structure schematic diagram;
Accompanying drawing 2 is A-A cut-away views of the utility model accompanying drawing 1.
Now with specific embodiment the utility model is described in further details in conjunction with the accompanying drawings:
Do one cylindrical pot of body (6), cylindrical pot body (6) bottom is taper, be provided with charging aperture on cylindrical pot body (6) top, upper side is provided with feed tube (1) and steam bleeding mouth (14), tapered lower end at cylindrical pot body (6) is provided with grout outlet, and the side is provided with air intake (11) and feed tube (10).In cylindrical pot body (6), be provided with radial stay pipe (5), be provided with on radial stay pipe (5) and concentric center annular filter screen (2), intermediate annular filter screen (3) and the boundary layer annular filter screen (4) of cylindrical pot body (6), intermediate annular filter screen (3) is provided with hollow interlayer.During use, wheat straw is packed into from charging aperture, fill the back by feed tube (1,8,10,12) with cooking liquor, heat for interior the raw material of cylindrical pot body (6), after wheat straw is made paper pulp, discharge by grout outlet.Preceding at paper pulp discharge cylindrical pot body (6), give an adding low temperature boiling liquid in the pot, slurry is washed and heat exchange.Can make heat exchange more abundant, favourable heat energy utilizes again.Heating is to pass through the steam indirect by the external heater of pot, and the soup forced circulation is finished.In the digestion process, behind the fibrous raw material delignification, the route of the body that takes the dish out of the pot from adjacent net along pipe circulates cooking liquor by filter screen.For the raw material that makes top and hypocone gets abundant boiling, in the digestion process up and down inlet opening one lead directly to into part cooking liquor.For solving final stage of cooking " pot collapses " problem, annular filter screen can be divided into two parts up and down.Their liquid in-out pipe can be controlled respectively, only has the bottom filter screen to participate in follow-up pulping process after " pot collapses " like this.The cooking liquor circulation route is, cooking liquor enters in the cylindrical pot body (6) from feed tube (1,8,10,12), by the hollow interlayer of intermediate annular filter screen (3), flow out by liquid suction pipe (7,13) and drain pipe (9) through the hollow interlayer that mixes with the herbaceous stem material between laggard people's center ring shape filter screen (2) and boundary layer annular filter screen (4) and the cylindrical pot body (6).
Claims (2)
1. paper-making pulping vertical digester, it is to be that cylindrical pot body (6) upper end of taper is provided with charging aperture in the bottom, upper side is provided with feed tube (1) and steam bleeding mouth (14), tapered lower end at cylindrical pot body (6) is provided with grout outlet, the side is provided with air intake (11) and feed tube (10), it is characterized in that: in cylindrical pot body (6), be provided with stay pipe (5), on stay pipe (5), be provided with and the concentric annular filter screen of cylindrical pot body (6).
2. paper-making pulping vertical digester as claimed in claim 1 is characterized in that the stay pipe (5) that is located in the cylindrical pot body (6) is radial; Annular filter screen has hollow interlayer, and annular filter screen is divided into center annular filter screen (2), intermediate annular filter screen (3) and boundary layer annular filter screen (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98232583 CN2320649Y (en) | 1998-03-27 | 1998-03-27 | Vertical digester for paper-making pulping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98232583 CN2320649Y (en) | 1998-03-27 | 1998-03-27 | Vertical digester for paper-making pulping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2320649Y true CN2320649Y (en) | 1999-05-26 |
Family
ID=33981488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98232583 Expired - Fee Related CN2320649Y (en) | 1998-03-27 | 1998-03-27 | Vertical digester for paper-making pulping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2320649Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308545C (en) * | 2003-08-26 | 2007-04-04 | 山东泉林纸业有限责任公司 | Vertical boiling pot for paper pulp |
| CN104389218A (en) * | 2014-11-30 | 2015-03-04 | 重庆市雅洁纸业有限公司 | Upper pyramid structure of distilling pan |
-
1998
- 1998-03-27 CN CN 98232583 patent/CN2320649Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308545C (en) * | 2003-08-26 | 2007-04-04 | 山东泉林纸业有限责任公司 | Vertical boiling pot for paper pulp |
| CN104389218A (en) * | 2014-11-30 | 2015-03-04 | 重庆市雅洁纸业有限公司 | Upper pyramid structure of distilling pan |
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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 |