CN100575598C - Intermittent pressure pulp screen - Google Patents
Intermittent pressure pulp screen Download PDFInfo
- Publication number
- CN100575598C CN100575598C CN200710016782A CN200710016782A CN100575598C CN 100575598 C CN100575598 C CN 100575598C CN 200710016782 A CN200710016782 A CN 200710016782A CN 200710016782 A CN200710016782 A CN 200710016782A CN 100575598 C CN100575598 C CN 100575598C
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- CN
- China
- Prior art keywords
- slag
- screen
- trapping cavity
- pulp screen
- housing
- 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
Links
- 239000002893 slag Substances 0.000 claims abstract description 181
- 239000002002 slurry Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000945 filler Substances 0.000 claims description 27
- 238000011010 flushing procedure Methods 0.000 claims description 15
- 238000010790 dilution Methods 0.000 claims description 5
- 239000012895 dilution Substances 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 23
- 238000012216 screening Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 7
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 6
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- 239000000356 contaminant Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000010893 paper waste Substances 0.000 description 2
- 238000009955 starching Methods 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
Images
Abstract
The invention discloses a kind of intermittent pressure pulp screen, it comprises the pulp screen housing, and the inside of pulp screen housing is installed with screen cylinder and rotor, and the pulp screen housing is provided with light slag slag trapping cavity and heavy slag slag trapping cavity; The setting of light slag slag trapping cavity and heavy slag slag trapping cavity makes it in screening process, and when good slurry was discharged, light slag converged in light slag slag trapping cavity and discharges no longer continuously, and heavy slag also converges in heavy slag slag trapping cavity and discharges equally no longer continuously; More when light slag slag trapping cavity or heavy slag slag trapping cavity impurity, when influence the screening of paper pulp, close stock inlet, the surplus slurry in the pulp screen is discharged, stop the work of pulp screen then, open light slag slag notch and weight slag slag notch, manually with contaminant removal; The eliminating of impurity does not re-use water as transport agent, has saved great amount of water resources, has reduced good slurry loss, has improved screening efficiency.
Description
Technical field
The present invention relates to a kind of pressure pulp screen, relate in particular to the pressure pulp screen that injects secondary stock a kind of intermittence.
Background technology
Because the deterioration day by day of world today's environment, people's environmental consciousness also strengthens day by day, for energy savings, reduce pollutional load, reduce deforestation, the forest of resting and take nourishing food to build up one's health recuperate, the recycling of waste paper has caused increasing attention, and in the process of waste paper pulp-making, the screening technology of paper pulp is absolutely necessary, and its key equipment is exactly a pressure pulp screen.
The effect of pressure pulp screen is that the impurity in the secondary stock is removed, and good fiber (good slurry) is screened.Impurity in the secondary stock is divided into light impurity and heavy seeds, and the more and proportion of light impurity content is less than the proportion of paper pulp, and the less and proportion of the content of heavy seeds is greater than the proportion of paper pulp.The operation principle of prior art pulp screen is: secondary stock is injected in the housing of pressure pulp screen continuously, good slurry is by good slurry outlet output continuously, impurity is also discharged continuously by slag-drip opening, the eliminating of impurity by water as transport agent, also have the good slurry of part to be discharged from the time of deslagging, this screening mode has been wasted a large amount of water on the one hand, has increased sewage emissions, waste a large amount of good slurries on the other hand, and therefore caused the pollution of environment.
More crucially be: the removal of impurity should finishing in operation foremost in the secondary stock, prior art then is just to finish the screening process of slurry at least substantially by the series connection of two equipment in the stage casing of operation, this just makes impurity increase broken chance greatly in the moving process backward in operation, make the thorough removal of this class impurity become difficult more, or cost is higher, or become impossible.
Summary of the invention
Technical problem to be solved by this invention provides a kind of front end in operation can finish screening, and reduces the intermittent pressure pulp screen of sewage discharge.
For solving the problems of the technologies described above, technical scheme of the present invention is: intermittent pressure pulp screen, comprise the pulp screen housing, the inside of described pulp screen housing is installed with the pressurized screen screen cylinder, the pressure sieve rotor coaxial with described screen cylinder, described pulp screen housing is provided with the stock inlet corresponding with described screen cylinder, the closed inner chamber of described screen cylinder is provided with the good slurry outlet of stretching out described pulp screen housing, described pulp screen housing is provided with the light slag slag trapping cavity that extends to described screen cylinder top, and the chamber wall of described light slag slag trapping cavity is provided with light slag slag notch; Described pulp screen housing is provided with the heavy slag slag trapping cavity that extends to described screen cylinder below, and the chamber wall of described heavy slag slag trapping cavity is provided with heavy slag slag notch.
As a kind of improvement, be equipped with screen cylinder inside and outside the described pressure sieve rotor of described pulp screen enclosure interior.
As a kind of improvement, described light slag slag trapping cavity is the cavity along the outward extending back taper of described housing.
As further improvement, the case top of described light slag slag trapping cavity is provided with air admission hole, and described air inlet position is equipped with air intake valve.
As further improvement, the top of described light slag slag trapping cavity housing is provided with the filler that light slag is washed, and place, described filler is equipped with flushing valve.
As further improvement, the top of described light slag slag trapping cavity housing is provided with evenly spreads dividing plate to slag trapping cavity with flushing water, and described dividing plate is provided with some water distributing pores, and described filler and described air admission hole all are arranged on the top of described dividing plate.
As further improvement, the stock inlet of described pulp screen housing is to be arranged on the tangential stock inlet of described pulp screen housing.
As further improvement, the stock inlet of described pulp screen housing is provided with the dilution water filler for the place.
As further improvement, also be provided with the filler that heavy slag slag notch and counterweight slag wash on the chamber wall of described heavy slag slag trapping cavity, place, described filler is equipped with flushing valve.
Owing to adopted technique scheme, intermittent pressure pulp screen, comprise the pulp screen housing, the inside of described pulp screen housing is installed with the pressurized screen screen cylinder, the pressure sieve rotor coaxial with described screen cylinder, described pulp screen housing is provided with the stock inlet corresponding with described screen cylinder, the closed inner chamber of described screen cylinder is provided with the good slurry outlet of stretching out described pulp screen housing, described pulp screen housing is provided with the light slag slag trapping cavity that extends to described screen cylinder top, and the chamber wall of described light slag slag trapping cavity is provided with light slag slag notch; Described pulp screen housing is provided with the heavy slag slag trapping cavity that extends to described screen cylinder below, and the chamber wall of described heavy slag slag trapping cavity is provided with heavy slag slag notch; The setting of light slag slag trapping cavity and heavy slag slag trapping cavity makes the present invention in screening process, and when good slurry was discharged, light slag converged in light slag slag trapping cavity and discharges no longer continuously, and heavy slag also converges in heavy slag slag trapping cavity and discharges equally no longer continuously; More when light slag slag trapping cavity or heavy slag slag trapping cavity impurity, when influencing the screening of paper pulp, can close the stock inlet of pulp screen, surplus slurry in the pulp screen is discharged, stop the work of pulp screen then, open light slag slag notch and heavy slag slag notch respectively, manually with contaminant removal; The eliminating of impurity does not re-use water as transport agent, can not be discharged from very starching in the time of deslagging yet, has saved great amount of water resources, has reduced good slurry loss, has improved screening efficiency.
Described light slag slag trapping cavity is the cavity along the outward extending back taper of described housing; Because the impurity in the secondary stock is based on light impurity, the cylindrical shell of back taper can enlarge its space that holds light impurity.
Because the top of described light slag slag trapping cavity housing is provided with the filler that light slag is washed, place, described filler is equipped with flushing valve again; Also be provided with the filler that heavy slag slag notch counterweight slag washes on the chamber wall of described heavy slag slag trapping cavity, place, described filler is equipped with flushing valve; Can repeatedly counterweight slag and light slag clean, the good slurry that is mixed in the waste residue can be separated more completely, avoid the waste of good slurry.
Description of drawings
Accompanying drawing is the structural representation of the embodiment of the invention.
The specific embodiment
As shown in drawings, intermittent pressure pulp screen, comprise pulp screen housing 1, the inside of described pulp screen housing 1 is installed with pressurized screen screen cylinder 2, the inside of described screen cylinder 2 is provided with the pressure sieve rotor 3 coaxial with described screen cylinder 2, described pulp screen housing 1 is provided with the stock inlet 4 corresponding with described screen cylinder 2, the closed inner chamber of described screen cylinder 2 is provided with the good slurry outlet 9 of stretching out described pulp screen housing 1, described pulp screen housing 1 is provided with the light slag slag trapping cavity 12 that extends to described screen cylinder 2 tops, and the chamber wall of described light slag slag trapping cavity 12 is provided with light slag slag notch 7; Described pulp screen housing 1 is provided with the heavy slag slag trapping cavity 13 that extends to described screen cylinder 2 belows, and the chamber wall of described heavy slag slag trapping cavity 13 is provided with heavy slag slag notch 5.
Described light slag slag trapping cavity 12 is the cavity along the outward extending back taper of described housing, because the impurity in the secondary stock is based on light impurity, the cylindrical shell of back taper can enlarge its space that holds light impurity.
The case top of described light slag slag trapping cavity 12 is provided with into air admission hole 10, and described air inlet position is equipped with air intake valve 10a.The top of described light slag slag trapping cavity 12 housings is provided with the filler 8 that light slag is washed, and 8 places, described filler are equipped with flushing valve 8a.
The top of described light slag slag trapping cavity 12 housings is provided with evenly spreads dividing plate 12a to slag trapping cavity with flushing water, and described dividing plate 12a is provided with some water distributing pore 12b, described filler 8 and describedly enter the top that air admission hole 10 all is arranged on described dividing plate 12a.
The stock inlet 4 of described pulp screen housing 1 is for being arranged on the tangential stock inlet of described pulp screen housing 1, makes the secondary stock that enters can be better mobile by the direction of circumference.The stock inlet 4 of described pulp screen housing 1 is provided with dilution water filler 11, the concentration that can dilute its secondary stock that enters for the place.
Also be provided with the filler 6 that heavy slag slag notch 5 and counterweight slag wash on the chamber wall of described heavy slag slag trapping cavity 13,6 places, described filler are equipped with flushing valve.Described filler 6 is the tangential water inlet on the chamber wall that is arranged on described heavy slag slag trapping cavity 13, can better the secondary stock that is deposited in the bottom be dashed, and better carries out screening the pulp.
Operation principle of the present invention is:
During work, the air intake valve 10a of the air admission hole 10 of light slag slag trapping cavity 12, heavy slag slag notch 5, light slag slag notch 7 are turned off, open stock inlet 4, good slurry outlet 9, secondary stock tangentially enters into pulp screen housing 1 around screen cylinder 2 rotations by stock inlet 4, can be in the time of in secondary stock has just entered pulp screen housing 1 through the dilution of dilution water pipe 11, prevent the too dense and influence screening of secondary stock, secondary stock is under the effect of pressure sieve rotor 3, qualified good slurry enters into screen cylinder inside through screen cylinder 2, and the slurry outlet 9 of getting married and start a new life is then discharged.Heavy impurity can be deposited to heavy slag slag trapping cavity 13 in the secondary stock, and eluriate by the fiber in the filler 6 counterweight slags of heavy slag slag trapping cavity 13, and light impurity can float to the light slag slag trapping cavity 12 of back taper, and the flushing valve 8a of the filler 8 by light slag slag trapping cavity 12 eluriates the fiber in the light slag.When light slag slag trapping cavity 12 or heavy slag slag trapping cavity 13 impurity more, when influencing the screening of paper pulp, close stock inlet 4, open the flushing valve 8a of the filler 8 of the flushing valve of the filler 6 of heavy slag slag trapping cavity 13, light slag slag trapping cavity 12, toward the 1 interior water filling of pulp screen housing, this moment, flushing water was eluriated the heavy slag of bottom and the light slag at top, good slurry is wherein got married and start a new life to starch in the mouth 4 by screen cylinder 2 discharge.After elutriation was finished, opened the air intake valve 10a of the air admission hole 10 of light slag slag trapping cavity 12 this moment, allows the water in the pulp screen housing 1 discharge by good slurry mouthfuls 4, stops the operation of pulp screen then.Subsequently, open heavy slag slag notch 5, light slag slag notch 7, manually will weigh slag and dispose, enter next periodic duty process with light slag.
The foregoing description is the version of screening with single screen cylinder, can certainly adopt the version of two screen cylinders, is equipped with screen cylinder 2 inside and outside the described pressure sieve rotor 3 of promptly described pulp screen housing 1 inside; This version is also within protection scope of the present invention.
The eliminating of impurity of the present invention does not re-use water as transport agent, can not save great amount of water resources with very starching discharge in the time of deslagging, has reduced sewage emissions, has protected environment, has reduced good slurry loss simultaneously, has improved screening efficiency.
Claims (9)
1. intermittent pressure pulp screen, comprise pulp screen housing (1), the inside of described pulp screen housing (1) is installed with pressurized screen screen cylinder (2), the pressure sieve rotor (3) coaxial with described screen cylinder (2), described pulp screen housing (1) is provided with the stock inlet (4) corresponding with described screen cylinder (2), the closed inner chamber of described screen cylinder (2) is provided with the good slurry outlet (9) of stretching out described pulp screen housing (1), it is characterized in that: described pulp screen housing (1) is provided with the light slag slag trapping cavity (12) that extends to described screen cylinder (2) top, and the chamber wall of described light slag slag trapping cavity (12) is provided with light slag slag notch (7); Described pulp screen housing (1) is provided with the heavy slag slag trapping cavity (13) that extends to described screen cylinder (2) below, and the chamber wall of described heavy slag slag trapping cavity (13) is provided with heavy slag slag notch (5).
2. intermittent pressure pulp screen as claimed in claim 1 is characterized in that: be equipped with screen cylinder (2) inside and outside the described pressure sieve rotor (3) that described pulp screen housing (1) is inner.
3. intermittent pressure pulp screen as claimed in claim 2 is characterized in that: described light slag slag trapping cavity (12) is the cavity along the outward extending back taper of described housing.
4. intermittent pressure pulp screen as claimed in claim 3 is characterized in that: the case top of described light slag slag trapping cavity (12) is provided with air admission hole (10), and described air inlet position is equipped with air intake valve (10a).
5. as claim 3 or 4 described intermittent pressure pulp screens, it is characterized in that: the top of described light slag slag trapping cavity (12) housing is provided with the filler (8) that light slag is washed, and described filler (8) locate to be equipped with flushing valve (8a).
6. intermittent pressure pulp screen as claimed in claim 5, it is characterized in that: the top of described light slag slag trapping cavity (12) housing is provided with evenly spreads dividing plate (12a) to slag trapping cavity with flushing water, described dividing plate (12a) is provided with some water distributing pores (12b), and described filler (8) and described air admission hole (10) all are arranged on the top of described dividing plate (12a).
7. intermittent pressure pulp screen as claimed in claim 1 is characterized in that: the stock inlet (4) of described pulp screen housing (1) is for being arranged on the tangential stock inlet of described pulp screen housing (1).
8. intermittent pressure pulp screen as claimed in claim 1 is characterized in that: the stock inlet (4) of described pulp screen housing (1) locates to be provided with dilution water filler (11).
9. intermittent pressure pulp screen as claimed in claim 1 is characterized in that: also be provided with the filler (6) that heavy slag slag notch (5) and counterweight slag wash on the chamber wall of described heavy slag slag trapping cavity (13), described filler (6) locate to be equipped with flushing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710016782A CN100575598C (en) | 2007-08-08 | 2007-08-08 | Intermittent pressure pulp screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710016782A CN100575598C (en) | 2007-08-08 | 2007-08-08 | Intermittent pressure pulp screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101158128A CN101158128A (en) | 2008-04-09 |
| CN100575598C true CN100575598C (en) | 2009-12-30 |
Family
ID=39306353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710016782A Expired - Fee Related CN100575598C (en) | 2007-08-08 | 2007-08-08 | Intermittent pressure pulp screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100575598C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191710B (en) * | 2011-04-06 | 2013-04-03 | 李�昊 | Improved intermittent type pressure pulp screening machine |
| CN102430273A (en) * | 2011-12-19 | 2012-05-02 | 河南省江河纸业有限责任公司 | Novel system and method for cleaning slurry on net |
| CN102747643B (en) * | 2012-07-17 | 2015-02-11 | 广东理文造纸有限公司 | Paper-marking water-powered slag removal system |
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2007
- 2007-08-08 CN CN200710016782A patent/CN100575598C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101158128A (en) | 2008-04-09 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Fengning Inventor after: Yang Guihua Inventor before: Li Fengning |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI FENGNING TO: LI FENGNING YANG GUIHUA |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171016 Address after: Longgang District of Shenzhen City, Guangdong province 518100 Bantian street gang snow road No. 2018, Cheonan cloud Valley phase 1 B block 1F Patentee after: Shenzhen wisdom Technology Co., Ltd. Address before: 636 mailbox, Changyi Construction Bank, Changyi, Shandong, Weifang 261300, China Patentee before: Li Fengning |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20170808 |
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| CF01 | Termination of patent right due to non-payment of annual fee |