CN202000189U - Novel washing device for increasing dust removal rate of pulping grass type raw materials - Google Patents
Novel washing device for increasing dust removal rate of pulping grass type raw materials Download PDFInfo
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- CN202000189U CN202000189U CN2010206484566U CN201020648456U CN202000189U CN 202000189 U CN202000189 U CN 202000189U CN 2010206484566 U CN2010206484566 U CN 2010206484566U CN 201020648456 U CN201020648456 U CN 201020648456U CN 202000189 U CN202000189 U CN 202000189U
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- pulping
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Abstract
The utility model relates to the technical field of pulping and papermaking accessory equipment, in particular to a novel washing device for increasing dust removal rate of pulping grass type raw materials. The washing device consists of an inclined screen, a water drain pipe, an inclined spiral dehydrator, a fresh water replenishing pipe and a spray pipe, and is characterized in that: the inclined screen is additionally arranged in front of the conventional inclined spiral dehydrator; inclination of the inclined screen is between 30 to 40 degrees, and aperture of meshes of the inclined screen is between phi 3mm and phi 5mm; the fresh water replenishing pipe is additionally arranged on the middle lower part of the inclined spiral dehydrator, the spray water pipe is additionally arranged on the middle upper part of the inclined spiral dehydrator; and the length of the spray pipe is 1/3 to 1/2 the length of the inclined spiral dehydrator. When the device is started for pulping wet prepared materials, the grass type raw materials which are prepared by a wet method firstly enter the inclined screen to filter off a part of or all grass washing water, then fresh washing water is continuously fed through the fresh water replenishing pipe when the grass type raw materials enter the inclined spiral dehydrator, a certain amount of spray water is sprayed through the spray pipe, and then the grass type raw materials are dehydrated through the inclined spiral dehydrator to form two washing processes and two dehydration processes, so that a washing effect is improved, dust content of the grass type raw materials is reduced, and requirements of digestion are met.
Description
Technical field
The utility model relates to pulping and paper-making auxiliary device technical field, a kind of specifically novel wash mill that is used to improve slurrying grass as raw material dust removal rate.
Background technology
At present, known advanced continuous steaming-boiling technology is taked to do, wet feed preparation, and traditional relatively batch (-type) rotary spherical digester is taked single dry raw material preparation, its dust removal rate height, and the bleached pulp whiteness height that makes, dust is few, and ash content is low.But grass as raw material is the seller's market now, difficult quality guarantee, it is very much serious that water mixing makes assorted phenomenon, and overcast and rainy snow weather particularly adopts the wheat straw after the dedusting of existing dry and wet stock preparation technology, its dust content is still higher, and the quality that makes slurry also obviously descends, and whiteness is low, dust is many, the ash content height of slurry, every chemical consumption rises significantly when manufacturing paper with pulp, and has increased middle section water and has handled burden, and the paper machine making difficulty is brought difficulty to plant operations.
Summary of the invention
The purpose of this utility model is to overcome above deficiency, a kind of novel wash mill that is used to improve slurrying grass as raw material dust removal rate is provided, this device increases by a slanted screen on the basis of traditional inclined screw Water Extraction Machinery, form secondary washing, second dehydration, thereby reach the raising clean result, reduce the grass as raw material dust content, satisfy the boiling requirement.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of novel wash mill that is used to improve slurrying grass as raw material dust removal rate is provided, form by slanted screen, inclined screw Water Extraction Machinery, fresh water make-up pipe, spray header, it is characterized in that: before the inclined screw Water Extraction Machinery, increase by a slanted screen, the gradient of slanted screen is 30 degree-40 degree, the sieve aperture Φ 3mm-Φ 5mm of slanted screen, and set up the fresh water make-up pipe in inclined screw Water Extraction Machinery middle and lower part, spray header is set up in the middle and upper part, and spray header length is 1/3rd to 1/2nd of conveyor screw length.
The beneficial effects of the utility model: improve the dust removal rate of even steaming grass as raw material, reduce grass as raw material and enter the dust content of boiling, help boiling; Improve the slurrying quality, make the pulp brightness height that makes, dust is few, and ash content is low; Reduce the chemical consumption of manufacturing paper with pulp, alleviate the processing load of middle section water.
Description of drawings
Figure is a structural representation of the present utility model.
1. slanted screens among the figure, 2. inclined screw Water Extraction Machinery, 3. fresh water make-up pipe, 4. spray header
The specific embodiment
A kind of novel wash mill that is used to improve slurrying grass as raw material dust removal rate, form by slanted screen 1, inclined screw Water Extraction Machinery 2, fresh water make-up pipe 3, spray header 4, it is characterized in that: before inclined screw Water Extraction Machinery 2, increase by a slanted screen 1, the gradient of slanted screen 1 is 30 degree-40 degree, the sieve aperture Φ 3mm-Φ 5mm of slanted screen 1, and set up fresh water make-up pipe 3 in inclined screw Water Extraction Machinery machine middle and lower part, spray header 4 is set up in the middle and upper part, and spray header 4 length are 1/3rd to 1/2nd of inclined screw Water Extraction Machinery length.
When the slurrying wet feed preparation is started shooting, be introduced into slanted screen 1 elimination through the grass as raw material behind the wet feed preparation and partly or entirely wash Cao Shui, when entering inclined screw Water Extraction Machinery 2, add fresh washings continuously by fresh make-up pipe 3 more then, and by a certain amount of shower water of spray header 4 spray, through inclined screw Water Extraction Machinery 2 water is sloughed again, form secondary washing, second dehydration, thereby reach the raising clean result, reduce the grass as raw material dust content, satisfy the boiling requirement.
Claims (1)
1. novel wash mill that is used to improve slurrying grass as raw material dust removal rate, by slanted screen (1), inclined screw Water Extraction Machinery (2), fresh water make-up pipe (3), spray header (4) is formed, it is characterized in that: increase a slanted screen (1) before at traditional inclined screw Water Extraction Machinery (2), the gradient of slanted screen (1) is 30 degree-40 degree, the sieve aperture 3mm-5mm of slanted screen (1), and set up fresh water make-up pipe (3) in inclined screw Water Extraction Machinery (2) middle and lower part, spray header (4) is set up in the middle and upper part, and spray header (4) length is 1/3rd to 1/2nd of inclined screw Water Extraction Machinery length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206484566U CN202000189U (en) | 2010-12-08 | 2010-12-08 | Novel washing device for increasing dust removal rate of pulping grass type raw materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206484566U CN202000189U (en) | 2010-12-08 | 2010-12-08 | Novel washing device for increasing dust removal rate of pulping grass type raw materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202000189U true CN202000189U (en) | 2011-10-05 |
Family
ID=44702934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206484566U Expired - Fee Related CN202000189U (en) | 2010-12-08 | 2010-12-08 | Novel washing device for increasing dust removal rate of pulping grass type raw materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202000189U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877345A (en) * | 2012-10-31 | 2013-01-16 | 江苏大唐机械有限公司 | Paper-making raw material washing and dewatering equipment |
| CN108617290A (en) * | 2018-03-16 | 2018-10-09 | 汪培杰 | A kind of agricultural machinery straw millstone going husky technology based on elution |
-
2010
- 2010-12-08 CN CN2010206484566U patent/CN202000189U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877345A (en) * | 2012-10-31 | 2013-01-16 | 江苏大唐机械有限公司 | Paper-making raw material washing and dewatering equipment |
| CN108617290A (en) * | 2018-03-16 | 2018-10-09 | 汪培杰 | A kind of agricultural machinery straw millstone going husky technology based on elution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20111208 |