CN202099673U - Paper pulp grit catcher - Google Patents
Paper pulp grit catcher Download PDFInfo
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- CN202099673U CN202099673U CN 201120186601 CN201120186601U CN202099673U CN 202099673 U CN202099673 U CN 202099673U CN 201120186601 CN201120186601 CN 201120186601 CN 201120186601 U CN201120186601 U CN 201120186601U CN 202099673 U CN202099673 U CN 202099673U
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- desanding
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Abstract
The utility model relates to the technical field of paper pulp processing, in particular to a paper pulp grit catcher, which comprises a cylindrical grit removing casing and a slag discharge device arranged at the lower end of the cylindrical grit removing casing. A pulp feeding opening pipe is arranged on the lateral wall of the upper portion of the cylindrical grit removing casing and communicated with the upper portion of the cylindrical grit removing casing, and the top of the cylindrical grit removing casing is provided with a good pulp outlet. The slag discharge device comprises a slag sedimenting pipe, an upper slag discharge valve and a lower slag discharge valve, two ends of the upper discharge valve are respectively communicated with the lower end of the cylindrical grit removing casing and the upper end of the slag sedimenting pipe, and the upper end of the lower slap discharge valve is communicated with the lower end of the slag sedimenting valve. The upper slag discharge valve and the lower slag discharge valve which can be opened and closed alternately are arranged at the bottom of the existing grit catcher, so that system pulps cannot run off when impurities in the slag sedimenting pipe are discharged out. The paper pulp grit catcher is simple in structure, convenient to operate, high in economical benefits and strong in practicability.
Description
Technical field
The utility model relates to the paper pulp technical field of processing equipment, refers in particular to a kind of paper pulp sand-removing device.
Background technology
Modern papermaking program can be divided into slurrying, modulates, manufactures paper with pulp, the key steps such as screening processing of paper stock, and slurrying is the first step of papermaking, and the method that generally timber is transformed into paper pulp has three kinds of mechanical pulping method, chemical pulping method and semichemical pulping methods etc.; Another emphasis that is modulated to papermaking of paper stock, quality, the length of paper pot-life of the intensity after paper is accomplished, tone, printing are directly relevant with it; General common modulated process is broadly divided into following three steps: A, the slurry that looses, and B, making beating, add glue and filling at C; Be the process of manufacturing paper with pulp then, the groundwork of copying paper department is for rare paper stock, it is interweaved uniformly and dewater, again warp drying, press polish, coil paper, cut, sort, pack the paper of using that obtains market sale afterwards.
At present, paper pulp through the cleaning equipment behind the size degradation in, what generally adopt is the desander processing that removes the gred; Existing desander is when work, and after slurry got into sand removal body through stock inlet, rotating flow was moving in sand removal body; And realize under action of centrifugal force separating of slurry and slag that good slurry is drained from grout outlet, the slurry that contains slag gets into collection slag pipe and temporarily deposits; And regularly discharge, but in its slagging-off process, must there be the good slurry of part to get into collection slag pipe from slag-drip opening; In the process of carrying out deslagging, have new good slurry and get into the loss that collection slag pipe causes slurry, defective is obvious.
Summary of the invention
The technical problem that the utility model will solve provides a kind of paper pulp sand-removing device that good slurry runs off that when carrying out deslagging, significantly reduces.
In order to solve the problems of the technologies described above; The utility model adopts following technical scheme: the paper pulp sand-removing device; Comprise tubular desanding housing and be arranged at the slag-draining device of tubular desanding housing lower end, the upper portion side wall of said tubular desanding housing is provided with the stock inlet pipe, and this stock inlet pipe is communicated with the top of tubular desanding housing; The top of said tubular desanding housing is provided with good slurry outlet; Said slag-draining device comprises the sediment pipe, goes up residual cake valve and lower dreg discharging valve, and the two ends of last residual cake valve are communicated with the lower end of tubular desanding housing and the upper end of sediment pipe respectively, and the upper end of lower dreg discharging valve is communicated with the lower end of sediment pipe.
Wherein, said tubular desanding lower part of frame internal diameter dwindles gradually and forms the rotation accelerating tube of being inverted taper type, and said upper end of going up residual cake valve is communicated with the lower end of this rotation accelerating tube.
Wherein, said upward residual cake valve is a ball valve, and the two ends of this ball valve are communicated with the lower end of rotation accelerating tube and the upper end of sediment pipe respectively through ring flange.
Further, said lower dreg discharging valve is a slide valve, and the upper end of this slide valve is communicated with the lower end of sediment pipe through ring flange.
Wherein, the external wall of upper portion of the Way out of said stock inlet pipe and tubular desanding housing is tangent.
The beneficial effect of the utility model is: the utility model provides a kind of paper pulp sand-removing device; Comprise tubular desanding housing and be arranged at the slag-draining device of tubular desanding housing lower end; The upper portion side wall of said tubular desanding housing is provided with the stock inlet pipe; This stock inlet pipe is communicated with the top of tubular desanding housing, and the top of said tubular desanding housing is provided with good slurry outlet, and said slag-draining device comprises the sediment pipe, goes up residual cake valve and lower dreg discharging valve; The two ends of last residual cake valve are communicated with the lower end of tubular desanding housing and the upper end of sediment pipe respectively, and the upper end of lower dreg discharging valve is communicated with the lower end of sediment pipe.But the utility model through have now bottom design at desander have alternation switch on residual cake valve and lower dreg discharging valve so that in the impurity in discharging the sediment pipe, can not cause the stock losses of system.Simple in structure, easy to operate, economic benefit is high, and is practical.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
The specific embodiment
For the ease of those skilled in the art's understanding, below in conjunction with embodiment and accompanying drawing the utility model is further described, the content that embodiment is mentioned not is the qualification to the utility model.
As shown in Figure 1; A kind of paper pulp sand-removing device; Comprise tubular desanding housing 1 and be arranged at the slag-draining device of tubular desanding housing 1 lower end, the upper portion side wall of said tubular desanding housing 1 is provided with stock inlet pipe 2, and this stock inlet pipe 2 is communicated with the top of tubular desanding housing 1; The top of said tubular desanding housing 1 is provided with good slurry outlet 3; Said slag-draining device comprises sediment pipe 4, goes up residual cake valve 5 and lower dreg discharging valve 6, and the two ends of last residual cake valve 5 are communicated with the lower end of tubular desanding housing 1 and the upper end of sediment pipe 4 respectively, and the upper end of lower dreg discharging valve 6 is communicated with the lower end of sediment pipe 4.
Operation principle: the outer wall tangent line along tubular desanding housing 1 enters into the top of tubular desanding housing 1 to slurry from stock inlet pipe 2; Under certain flow velocity and pressure, slurry produces centrifugal force along the powerful rotating operation of the inwall of tubular desanding housing 1, because the relative density of impurity is bigger; The centrifugal force that receives is also big; So thrown to the inwall of tubular desanding housing 1, its inwall moves downwards in gravity effect lower edge then, enters in the sediment pipe 4 through last residual cake valve 5 at last.Axial centre place at tubular desanding housing 1; Because centrifugal action forms low-pressure area, the relative density of slurry is less, in being rotated down motion process, shifts to low-pressure area gradually; And move upward along center rotation, discharge from the good slurry outlet 3 on tubular desanding housing 1 top.
In the present embodiment, said upward residual cake valve 5 is a ball valve, and the two ends of this ball valve are communicated with the lower end of rotation accelerating tube 7 and the upper end of sediment pipe 4 respectively through ring flange; The said lower dreg discharging valve 6 of present embodiment is a slide valve, and the upper end of this slide valve is communicated with the lower end of sediment pipe 4 through ring flange.The normal process desanding adds man-hour, and lower dreg discharging valve 6 cuts out, and last residual cake valve 5 is opened; Impurity gets into sediment pipe 4 through last residual cake valve 5; In the time need the impurity in the sediment pipe 4 being discharged, close earlier and close residual cake valve 5, open lower dreg discharging valve 6 again; Sediment pipe 4 interior impurity are discharged by lower dreg discharging valve 6, and the slurry when avoiding impurity to discharge simultaneously in the tubular desanding housing 1 causes the loss of slurry through last residual cake valve 5 outflows.
The utility model through have now bottom design at desander have can alternation switch on residual cake valve 5 and lower dreg discharging valve 6 so that in the impurity in discharging sediment pipe 4, can not cause the stock losses of system.Simple in structure, easy to operate, economic benefit is high, and is practical.
The bottom internal diameter of the said tubular desanding housing 1 of present embodiment dwindles gradually and forms the rotation accelerating tube 7 of being inverted taper type, and said upper end of going up residual cake valve 5 is communicated with the lower end of this rotation accelerating tube 7.The frictional resistance that receives tubular desanding housing 1 inwall when slurry rotatablely moves is starched to the concentrated influence of low-pressure area with good; The speed that slurry is rotated slows down gradually and causes that centrifugal force descends; So in the bottom of tubular desanding housing 1 the rotation accelerating tube 7 of being inverted taper type is set, centrifugal force is increased, to keep enough centrifugal force removing impurities; Simple in structure, practical.
The external wall of upper portion of the Way out of the said stock inlet pipe 2 of present embodiment and tubular desanding housing 1 is tangent; Outer wall tangent line along tubular desanding housing 1 enters into the top of tubular desanding housing 1 to slurry from stock inlet pipe 2; Thereby just has higher rotary speed when making slurry get into the top of tubular desanding housing 1; Reduce the kinetic energy rejection of slurry, energy-conserving and environment-protective, practicality is stronger.
The foregoing description is one of preferable implementation of the utility model; In addition; The utility model can also alternate manner realizes, in any conspicuous replacement under the prerequisite that does not break away from the utility model inventive concept all within the protection domain at the utility model.
Claims (5)
1. paper pulp sand-removing device; Comprise tubular desanding housing (1); And be arranged at the slag-draining device of tubular desanding housing (1) lower end; The upper portion side wall of said tubular desanding housing (1) is provided with stock inlet pipe (2); This stock inlet pipe (2) is communicated with the top of tubular desanding housing (1), and the top of said tubular desanding housing (1) is provided with good slurry outlet (3), it is characterized in that: said slag-draining device comprises sediment pipe (4), goes up residual cake valve (5) and lower dreg discharging valve (6); The two ends of last residual cake valve (5) are communicated with the lower end of tubular desanding housing (1) and the upper end of sediment pipe (4) respectively, and the upper end of lower dreg discharging valve (6) is communicated with the lower end of sediment pipe (4).
2. paper pulp sand-removing device according to claim 1; It is characterized in that: the bottom internal diameter of said tubular desanding housing (1) dwindles gradually and forms the rotation accelerating tube (7) of being inverted taper type, and said upper end of going up residual cake valve (5) is communicated with the lower end of this rotation accelerating tube (7).
3. paper pulp sand-removing device according to claim 2 is characterized in that: said upward residual cake valve (5) is a ball valve, and the two ends of this ball valve are communicated with the lower end of rotation accelerating tube (7) and the upper end of sediment pipe (4) respectively through ring flange.
4. paper pulp sand-removing device according to claim 2 is characterized in that: said lower dreg discharging valve (6) is a slide valve, and the upper end of this slide valve is communicated with the lower end of sediment pipe (4) through ring flange.
5. paper pulp sand-removing device according to claim 1 is characterized in that: the external wall of upper portion of the Way out of said stock inlet pipe (2) and tubular desanding housing (1) is tangent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120186601 CN202099673U (en) | 2011-06-03 | 2011-06-03 | Paper pulp grit catcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120186601 CN202099673U (en) | 2011-06-03 | 2011-06-03 | Paper pulp grit catcher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202099673U true CN202099673U (en) | 2012-01-04 |
Family
ID=45385695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120186601 Expired - Lifetime CN202099673U (en) | 2011-06-03 | 2011-06-03 | Paper pulp grit catcher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202099673U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999008A (en) * | 2018-09-20 | 2018-12-14 | 中国宣纸股份有限公司 | A kind of circulation slag removing system of rice paper latex |
-
2011
- 2011-06-03 CN CN 201120186601 patent/CN202099673U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999008A (en) * | 2018-09-20 | 2018-12-14 | 中国宣纸股份有限公司 | A kind of circulation slag removing system of rice paper latex |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |