CN104452402A - Papermaking pulp sand remover - Google Patents
Papermaking pulp sand remover Download PDFInfo
- Publication number
- CN104452402A CN104452402A CN201410754377.6A CN201410754377A CN104452402A CN 104452402 A CN104452402 A CN 104452402A CN 201410754377 A CN201410754377 A CN 201410754377A CN 104452402 A CN104452402 A CN 104452402A
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- CN
- China
- Prior art keywords
- inferior pyramidal
- sand
- pyramidal housing
- pulp
- auxiliary
- 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
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/18—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force
Abstract
The invention discloses a papermaking pulp sand remover, and relates to papermaking devices. The papermaking pulp sand remover comprises a lower conical shell (1). A tangential feeding pulp inlet pipe (2) is arranged on the upper portion of the lower conical shell, a pulp outlet (3) is formed in the top of the lower conical shell, and a sand outlet (4) is formed in the lower end of the lower conical shell; the sand outlet in the lower end of the lower conical shell is connected with a lower auxiliary conical shell (5), a sand discharge outlet (6) is formed in the lower end of the lower auxiliary conical shell, and the sectional area of the sand discharge outlet (6) is smaller than the sectional area of the sand outlet (4) in the lower end of the lower conical shell; the lower conical shell (1) and the lower auxiliary conical shell (5) are of lower cone structures. The papermaking pulp sand remover has the advantages that the papermaking pulp sand remover is simple in structure and can run reliably, the manufacturing cost can be obviously reduced, good pulp and sand separation effects can be realized, pulp loss can be prevented, and the maintenance cost can be decreased.
Description
Technical field
The present invention relates to the device of paper, specifically a kind of desanding device of paper making pulp.
Background technology
In paper making process, especially use regenerated papermaking, need to remove the sand grains in paper pulp after pulping.Existing one " paper pulp grit catcher " comprises inferior pyramidal housing, inferior pyramidal housing upper is provided with the pulp-inlet pipe of tangential admission, there is pulp outlet on top, the sand export of inferior pyramidal housing lower end connects the entrance point of upper residual cake valve, the port of export of upper residual cake valve connects the entrance point of sand sediment pipe, the port of export of sand sediment pipe connects lower dreg discharging valve, paper pulp after pulping, tangentially entered by inferior pyramidal housing upper and form eddy flow in inferior pyramidal housing, paper pulp is separated with sand grains, paper pulp is discharged by the pulp outlet on top and enters the subsequent processing of production process, sand grains after being separated falls due to Action of Gravity Field, sand sediment pipe is entered by upper residual cake valve, namely the slag things such as sand grains are discharged by opening lower dreg discharging valve, " paper pulp grit catcher " residual cake valve and lower dreg discharging valve should be set simultaneously, by alternately opening upper residual cake valve, lower dreg discharging valve, when getting rid of the sand grains foreign material in sand sediment pipe, pulp loss can be avoided." paper pulp grit catcher " residual cake valve and lower dreg discharging valve should be set simultaneously, make whole desander complex structure, and add the control device arranging and open with closed upper residual cake valve and lower dreg discharging valve, cause cost high.
Summary of the invention
The object of the invention is to propose the simple paper making pulp desander of a kind of structure, the separating effect of paper pulp and sand grains can be improved and avoid pulp loss, improve waste water recycling quality, by structure optimization, obviously can reduce cost.
Technical scheme of the present invention, comprises inferior pyramidal housing, and inferior pyramidal housing upper is provided with the pulp-inlet pipe of tangential admission, and there is pulp outlet on top, and there is sand export lower end;
The sand export of described inferior pyramidal housing lower end connects auxiliary inferior pyramidal housing, described sand export communicates with the inner chamber of auxiliary inferior pyramidal housing, there is sand removing hole auxiliary inferior pyramidal housing lower end, and the sectional area of sand removing hole is less than the sectional area of described inferior pyramidal housing lower end sand export.
Further, the below of the sand removing hole of described auxiliary inferior pyramidal housing lower end is provided with and stores sand launder, stores sand launder and is provided with wastewater outlet.
Operation principle of the present invention is, paper pulp after pulping tangentially enters inferior pyramidal housing cavity top by pulp-inlet pipe, eddy flow is formed in inferior pyramidal housing cavity, paper pulp is produced with sand grains be separated, sand grains after separation falls within auxiliary inferior pyramidal housing because of gravity, sectional area due to auxiliary inferior pyramidal housing lower end sand removing hole is less than the sectional area of inferior pyramidal housing lower end sand export, namely the technical measures of changes in flow rate are adopted, make to enter the sand grains in auxiliary inferior pyramidal housing and a small amount of or part pulp mixture generation delay, and under the cyclonic action formed in the described inferior pyramidal housing effect of exerting oneself, be stranded in sand grains in auxiliary inferior pyramidal housing and pulp mixture namely in eddy flow state, in the delay process of eddy flow state, secondary separation is realized to the sand grains entered in auxiliary inferior pyramidal housing and a small amount of or part paper pulp, namely paper pulp after secondary separation rise and to mix with the paper pulp of first separation, discharged by the pulp outlet of inferior pyramidal housing tip and enter the subsequent processing of production process, namely sand grains after separation and waste water are fallen into by the sand removing hole discharge of auxiliary inferior pyramidal housing lower end and store sand launder.
The present invention has following technique effect:
1, owing to arranging auxiliary inferior pyramidal housing in inferior pyramidal housing lower end, thus effectively realize being separated of sand grains and paper pulp, structure is simple, with background technology ratio, eliminates residual cake valve and lower dreg discharging valve and opens and the control device closed, obviously can reduce cost.
2, because the sectional area of auxiliary inferior pyramidal housing lower end sand removing hole is less than the sectional area of described inferior pyramidal housing lower end sand export, namely the technical measures of changes in flow rate are adopted, make to enter the sand grains in auxiliary inferior pyramidal housing and the delay of pulp mixture generation in eddy flow state, realize the secondary separation of sand grains and pulp mixture, namely simple in structure and the separating effect of paper pulp and sand grains while obviously reducing cost, can be improved, pulp loss can be avoided, and the reuse quality of desanding waste water can be improved, meet the reuse requirement of waste water.
3, owing to eliminating upper residual cake valve and the lower dreg discharging valve of background technology and opening and Closed control device, reduce the maintenance work to upper residual cake valve and lower dreg discharging valve and control device thereof, also operating cost can be reduced while obviously can reducing cost, and the simplification of component can reduce operation troubles, makes stable and reliable operation.
Technique effect of the present invention will further describe in a specific embodiment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention program, and is defined as Figure of abstract.
Detailed description of the invention
The present invention includes inferior pyramidal housing 1, inferior pyramidal housing upper is provided with the pulp-inlet pipe 2 of tangential admission, and namely pulp-inlet pipe 2 communicates with the upper tangential of inferior pyramidal housing cavity, and there is pulp outlet 3 on top, and there is sand export 4 lower end.Described inferior pyramidal housing is supported by column 8.In enforcement, described inferior pyramidal housing 1 upper end can connect cylindrical sections, and namely described pulp-inlet pipe 2 is tangentially connected with the cylindrical sections of inferior pyramidal housing upper end, as diagram.Described inferior pyramidal housing 1 also can be overall inferior pyramidal housing, and namely pulp-inlet pipe 2 is tangentially connected with the conical section of inferior pyramidal housing upper.
The sand export 4 of described inferior pyramidal housing 1 lower end connects auxiliary inferior pyramidal housing 5, described sand export 4 communicates with the inner chamber of auxiliary inferior pyramidal housing 5, there is sand removing hole 6 auxiliary inferior pyramidal housing 5 lower end, and the sectional area of sand removing hole 6 is less than the sectional area of inferior pyramidal housing 1 lower end sand export 4.
Through test application, the sectional area of auxiliary inferior pyramidal housing 5 lower end sand removing hole 6 is while the sectional area being less than inferior pyramidal housing 1 lower end sand export 4, the diameter (sectional area) of auxiliary inferior pyramidal housing lower end sand removing hole 6 is relevant to the sand grains in pulp density and paper pulp, the diameter of described sand removing hole 6 is preferably 15-40 millimeter, and namely the diameter (sectional area) of described sand removing hole 6 can be determined according to pulp density and sand grains size; When as high in pulp density, sand grains is less, the diameter of sand removing hole 6 should get smaller value, namely sand grains and the holdup time of pulp mixture in auxiliary inferior pyramidal housing 5 chamber slightly long, to have the secondary separation that time enough realizes paper pulp and sand grains; Otherwise as low in pulp density and sand grains is more appropriate to the occasion gets larger value, is separated because paper pulp and sand grains are easier to realization, namely sand grains and the holdup time of pulp mixture in auxiliary inferior pyramidal housing 5 chamber can be slightly short; As: the diameter of inferior pyramidal housing 1 lower end sand export 4 is 80 millimeters, paper pulp be intermediate concentration, grit particles moderate time, the diameter of auxiliary inferior pyramidal housing 5 lower end sand removing hole 6 is preferably 20 millimeters.Through the desanding effect contrast test of medium consistency pulp, desander mutually isostructural with background technology, still containing obvious paper pulp in its sand grains of discharging, and is difficult to see obvious paper pulp in the sand grains of being discharged by desander of the present invention.
In enforcement, the back cut diameter (sectional area) of described auxiliary inferior pyramidal housing 5 is greater than the diameter (sectional area) of inferior pyramidal housing lower end sand export 4, the mixture being beneficial to sand grains and the paper pulp of being discharged by sand export 4 can enter in auxiliary inferior pyramidal housing 5 swimmingly, make the inner chamber of auxiliary inferior pyramidal housing 5 have relative capacity simultaneously, and suitably can reduce the height of auxiliary inferior pyramidal housing 5, be conducive to the whole height reducing paper pulp grit catcher of the present invention, reduce requisite space.In enforcement, the auxiliary back cut diameter (sectional area) of inferior pyramidal housing 5 is unsuitable excessive with the difference of the diameter (sectional area) of inferior pyramidal housing lower end sand export 4, is beneficial to the paper pulp after secondary separation and rises.
The below of described auxiliary inferior pyramidal housing lower end sand removing hole 6 is provided with and stores sand launder 7, store sand launder 7 and be provided with wastewater outlet 7a, namely the sand grains of being discharged by sand removing hole 6 and waste water fall into and store in sand launder 7, during operation, can rinse to storing in sand launder 7 to add water, waste water is then discharged and reuse by wastewater outlet 7a, and the sand grains stored in sand launder 7 is then regularly removed when stopping operation.
Inferior pyramidal housing 1 and auxiliary inferior pyramidal housing 5 are lower conical structure.
Various enforcement structure described in the specific embodiment of the invention and scope of the present invention is all belonged to any distressed structure of technical solution of the present invention.
Claims (8)
1. paper making pulp desander, comprises inferior pyramidal housing, and inferior pyramidal housing upper is provided with the pulp-inlet pipe of tangential admission, and there is pulp outlet on top, and there is sand export lower end;
It is characterized in that:
The sand export of described inferior pyramidal housing lower end connects auxiliary inferior pyramidal housing, described sand export communicates with the inner chamber of auxiliary inferior pyramidal housing, there is sand removing hole auxiliary inferior pyramidal housing lower end, and the sectional area of described sand removing hole is less than the sectional area of described inferior pyramidal housing lower end sand export.
2. according to paper making pulp desander according to claim 1, it is characterized in that: the diameter of auxiliary inferior pyramidal housing (5) lower end sand removing hole (6) is 15-40 millimeter.
3. according to paper making pulp desander according to claim 2, it is characterized in that: the below of auxiliary inferior pyramidal housing (5) lower end sand removing hole (6) is provided with and stores sand launder (7), stores sand launder and is provided with wastewater outlet (7a).
4. according to paper making pulp desander according to claim 1, it is characterized in that: the back cut diameter of described auxiliary inferior pyramidal housing (5) is greater than the diameter of inferior pyramidal housing (1) lower end sand export (4).
5. according to paper making pulp desander according to claim 2, it is characterized in that: the back cut diameter of described auxiliary inferior pyramidal housing (5) is greater than the diameter of inferior pyramidal housing lower end sand export (4).
6. according to paper making pulp desander according to claim 1, it is characterized in that: the upper end of described inferior pyramidal housing (1) connects cylindrical sections, and described pulp-inlet pipe (2) is namely tangentially connected with the cylindrical sections of inferior pyramidal housing upper end.
7. according to paper making pulp desander according to claim 1, it is characterized in that: described inferior pyramidal housing (1) is overall inferior pyramidal housing, and described pulp-inlet pipe (2) is namely tangentially connected with the conical section of inferior pyramidal housing upper.
8. according to claim 1-7 any described in paper making pulp desander, it is characterized in that: inferior pyramidal housing (1) and auxiliary inferior pyramidal housing (5) are lower conical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410754377.6A CN104452402A (en) | 2014-12-11 | 2014-12-11 | Papermaking pulp sand remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410754377.6A CN104452402A (en) | 2014-12-11 | 2014-12-11 | Papermaking pulp sand remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104452402A true CN104452402A (en) | 2015-03-25 |
Family
ID=52899107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410754377.6A Pending CN104452402A (en) | 2014-12-11 | 2014-12-11 | Papermaking pulp sand remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104452402A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049114A (en) * | 1990-07-20 | 1991-02-13 | 沈阳市东方聚氨酯制品厂 | Cyclean and manufacture method thereof |
| CN2269416Y (en) * | 1996-08-30 | 1997-12-03 | 杨盛杰 | Diversion self suction type sand removing defibering fiberizer |
| WO2000003809A1 (en) * | 1998-07-14 | 2000-01-27 | Odis Irrigation Equipment Ltd. | Hydrocyclone separator |
| CN2396093Y (en) * | 1999-09-29 | 2000-09-13 | 邹城市玻璃钢制品公司 | Efficient uniform speed scummer |
| CN2647903Y (en) * | 2003-11-05 | 2004-10-13 | 孙文峰 | Middle and low concentration slag removing device |
| CN2663494Y (en) * | 2003-11-05 | 2004-12-15 | 孙文峰 | Stock cleaner capable of eliminating multi foreign substances |
| CN201738182U (en) * | 2010-06-02 | 2011-02-09 | 安丘市天利机械制造有限公司 | Double-cone slag removal separation device |
| CN202577028U (en) * | 2012-03-20 | 2012-12-05 | 江阴比图特种纸板有限公司 | Waste paper pulp impurity separating device |
| CN203021860U (en) * | 2012-12-28 | 2013-06-26 | 郑州磊展科技造纸机械有限公司 | Cone inner core of high-concentration slag separator |
| CN203222697U (en) * | 2013-03-14 | 2013-10-02 | 潍坊海蓝环保科技有限公司 | Scummer used for purifying high-concentration paper pulp |
| CN204356581U (en) * | 2014-12-11 | 2015-05-27 | 钟立福 | A kind of paper making pulp desander |
-
2014
- 2014-12-11 CN CN201410754377.6A patent/CN104452402A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049114A (en) * | 1990-07-20 | 1991-02-13 | 沈阳市东方聚氨酯制品厂 | Cyclean and manufacture method thereof |
| CN2269416Y (en) * | 1996-08-30 | 1997-12-03 | 杨盛杰 | Diversion self suction type sand removing defibering fiberizer |
| WO2000003809A1 (en) * | 1998-07-14 | 2000-01-27 | Odis Irrigation Equipment Ltd. | Hydrocyclone separator |
| CN2396093Y (en) * | 1999-09-29 | 2000-09-13 | 邹城市玻璃钢制品公司 | Efficient uniform speed scummer |
| CN2647903Y (en) * | 2003-11-05 | 2004-10-13 | 孙文峰 | Middle and low concentration slag removing device |
| CN2663494Y (en) * | 2003-11-05 | 2004-12-15 | 孙文峰 | Stock cleaner capable of eliminating multi foreign substances |
| CN201738182U (en) * | 2010-06-02 | 2011-02-09 | 安丘市天利机械制造有限公司 | Double-cone slag removal separation device |
| CN202577028U (en) * | 2012-03-20 | 2012-12-05 | 江阴比图特种纸板有限公司 | Waste paper pulp impurity separating device |
| CN203021860U (en) * | 2012-12-28 | 2013-06-26 | 郑州磊展科技造纸机械有限公司 | Cone inner core of high-concentration slag separator |
| CN203222697U (en) * | 2013-03-14 | 2013-10-02 | 潍坊海蓝环保科技有限公司 | Scummer used for purifying high-concentration paper pulp |
| CN204356581U (en) * | 2014-12-11 | 2015-05-27 | 钟立福 | A kind of paper making pulp desander |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
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| WD01 | Invention patent application deemed withdrawn after publication |