CN106368038A - Up-flow type pressure screen - Google Patents
Up-flow type pressure screen Download PDFInfo
- Publication number
- CN106368038A CN106368038A CN201611011321.7A CN201611011321A CN106368038A CN 106368038 A CN106368038 A CN 106368038A CN 201611011321 A CN201611011321 A CN 201611011321A CN 106368038 A CN106368038 A CN 106368038A
- Authority
- CN
- China
- Prior art keywords
- screen cylinder
- flow type
- type pressure
- casing
- upward flow
- 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.)
- Granted
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Classifications
-
- 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
- D21D5/02—Straining or screening the pulp
- D21D5/06—Rotary screen-drums
Abstract
The invention relates to the technical field of pulp screening equipment and discloses an up-flow type pressure screen which comprises a casing. Multi-layer partition plates are arranged in the casing and divide the inside of the casing into multiple discharging layers, the discharging layers are provided with discharging ports, the bottom of the casing is provided with a speed reduction motor, the speed reduction motor is provided with a rotating shaft penetrating the top of the casing, the rotating shaft is sleeved with a screen cylinder penetrating the multi-layer partition plates, the screen cylinder is internally hollow and is conical, the upper end of the screen cylinder is a small end, the lower end of the screen cylinder is a large end, a plurality of screen holes are evenly distributed in the surface of the screen cylinder, and the diameters of the screen holes are sequentially reduced in the direction from the lower end to the upper end of the screen cylinder. The top of the casing is provided with an air suction channel, a fan wheel is disposed in the air suction channel, the upper end of the rotating shaft is fixedly connected with the lower end of the fan wheel, the upper end of the air suction channel is rotatably connected with a cover plate, and the upper end of the casing is further provided with a feeding port. Through the up-flow type pressure screen, fibrous residue in pulp can be effectively separated, and the service life of a device can be prolonged.
Description
Technical field
The present invention relates to pulp sifting equipment technical field is and in particular to a kind of upward flow type pressure sieve.
Background technology
Upward flow type pressure sieve is using a kind of more universal screening installation in paper pulp production line, and traditional pressurized screen is main
For dropping streaming, when being screened, the direction of motion of paper pulp slurry stream is top-down, under gravity, fiber mixed liquor
In water deslagging chamber can be moved to larger movement velocity, cause the mixed liquid concentration of deslagging chamber lower end to increase, make rotor pair
Go out larger power and be pushed to the flowing of this part mixed liquor.
By contrast, upward flow type pressure sieve takes bottom to enter slurry, bottom re-scheduling slag, the up-flow structure of the top light slag of row,
Light impurity is raised to top slag-drip opening discharge naturally with the air in slurry, and heavy seeds one are entered body and discharged by bottom.Have
Shortening to effect the time of staying in sieve area for the impurity, reducing the probability of impurity recycling, thus efficiently solving fall streaming
The larger problem of pressurized screen energy expenditure, improves screening efficiency.
But, existing upward flow type pressure sieve when carrying out screening the pulp to paper pulp, also can by a part of heavy slag comprising in mixed liquor
By screening areas, and do not enable efficiently separating of weight slag, in this process, weight slag can be made to rotor elements and screen drum
Become heavy wear so that the service life of equipment reduces.And, during screening the pulp, the often part acceptable fiber in light slag
Also it is not implemented and efficiently separates, just being drained in the lump, thus causing the waste of the resources of production, being unfavorable for the processing of enterprise.
Content of the invention
The invention is intended to providing a kind of upward flow type pressure sieve, to realize efficiently separating of slag, and reduce the mill to equipment
Damage, extension device service life.
For reaching above-mentioned purpose, the basic technology scheme of the present invention is as follows: a kind of upward flow type pressure sieve, including housing, shell
It is provided with multilayer insulating panel in vivo, enclosure interior is separated into several layers and goes out the bed of material by multilayer insulating panel, go out the bed of material and be equipped with discharging opening, housing bottom
Portion is provided with reducing motor, and reducing motor is provided with the rotary shaft running through case top, rotary shaft is arranged with and runs through multilayer insulating panel
Screen cylinder, screen cylinder inner hollow, screen cylinder is tapered, and screen cylinder upper end is small end, screen cylinder lower end be big hold, screen cylinder surface is uniformly divided
It is furnished with several sieve apertures, the aperture of several sieve apertures is sequentially reduced along the supreme extreme direction in lower end of screen cylinder, and case top is provided with aspirating unit,
It is provided with impeller, the upper end of rotary shaft is fixedly connected with the lower end of impeller, and aspirating unit upper end is rotatably connected to cover plate, shell in aspirating unit
Body upper end is additionally provided with charging aperture.
The principle of this programme is: during practical application, pulp slurry is entered in screen cylinder by charging aperture, and serosity flows downward, stream
During dynamic, few fibers slag in serosity through the small opening on screen cylinder enter corresponding go out the bed of material in, realize serosity just
Step screening.Reducing motor works, and makes rotary shaft rotate, because screen cylinder is sheathed on the rotating shaft, now screen cylinder is followed rotary shaft and turned
Move, the fiber in serosity and slag all start to do centrifugal motion under the rotary action of screen cylinder, the quality due to weight slag is more than gently
Slag, weight slag is in Qing Zha lower floor, and the centrifugal force that weight slag is obtained is big compared with light slag, and under larger centrifugal action, weight slag is got rid of
Fly to the sieve aperture of screen cylinder bottom, and by sieve aperture move to corresponding go out the bed of material in, and the less slag of quality is not due to having
Obtain enough centrifugal force, be now still trapped in screen cylinder.
Rotary shaft rotate while, drive rotary shaft upper end be fixedly connected impeller rotation so that below impeller with
Forming negative pressure between side, thus attracting the serosity in screen cylinder upwards, so that serosity is moved upwards.Slag in serosity is while be centrifuged
Motion, rises, and in uphill process, because screen cylinder is tapered, screen cylinder upper end is fast compared with the linear velocity of lower end, and slag exists
During rising, centrifugal motion linear velocity is followed screen cylinder and is gradually accelerated, and suffered centrifugal force is also therefore gradually increased.Wherein, heavier mass
Slag first obtain enough centrifugal force in lower, and got rid of in lower and flown at the sieve aperture larger to lower position, and via
Sieve aperture move to corresponding go out the bed of material in, and the slag of lighter weight just obtains enough centrifugal force in higher position, and higher
Place is just got rid of to fly to the less sieve aperture in higher position, and via sieve aperture move to corresponding go out the bed of material in.Serosity moves upwards
During, the slag of different quality got rid of via the sieve aperture priority at differing heights fly to corresponding go out the bed of material in, thus real
Existing the multiple of slag efficiently separates, and lifts disintegrate-quality.
By cover plate, aspirating unit is closed, the air mass flow in aspirating unit reduces, the air around impeller is synchronized with impeller
Rotation, air drag suffered by impeller diminishes, and therefore rotary speed is accelerated so that negative pressure aggravation, accelerate serosity the rate of climb and
Screening speed, lifts screening efficiency.By adjusting the closing degree to aspirating unit for the cover plate, change the rate of climb and the screening of serosity
Speed, thus effectively adjusted to screening efficiency and screening precision.
The beneficial effect of this programme: the rotation by rotary shaft for the present invention, drive screen cylinder and impeller rotation, make slurry do from
The heart moves and rises, and the slag making different quality in slurry, under different size of operating on centrifugal force, successively separates from serosity
Out, thus realizing efficiently separating of slag and fiber in serosity, improve screening precision.And in separation process, mainly profit
Driving serosity motion with the negative pressure that impeller is formed, reducing the friction force between serosity and rotary shaft, thus reducing serosity pair
The abrasion of equipment, extends the service life of device.Additionally, by adjusting the closing degree to aspirating unit for the cover plate, to change slurry
The rate of climb of liquid and screening speed, thus reach the effective regulation to screening efficiency and screening precision.
Preferably, improve as a kind of, rotary shaft is provided with the packing auger blade of taper, packing auger blade lower end is big end, on
Hold as small end.Packing auger blade rotation is driven, packing auger blade rotation stirs to serosity, prevents in serosity when rotary shaft rotates
Slag blocks sieve aperture, promotes serosity to rise simultaneously, lifts screening efficiency.
Preferably, improve as a kind of, aspirating unit is provided with ventilative material baffle with the junction of housing.Ventilative material baffle will be inhaled
Air flue and screen cylinder separate, and prevent serosity from ascending in aspirating unit, and affect the normal work of impeller.
Preferably, improve as a kind of, each goes out the bed of material and is equipped with multiple discharging openings, and multiple discharging openings are all along place discharging
The excircle of layer is uniformly distributed.So, it is easy to 360 degree of timely dischargings in rotary course for the screen cylinder, accelerate discharging efficiency, prevent
Slag is detained in going out the bed of material and leads to discharging abnormal.
Preferably, improve as a kind of, discharge outlet is equipped with discharge valve.By the opening degree of discharge valve, right
Discharging speed is controlled, and prevents discharging too fast, and slag congestion is in discharging opening, or discharging is excessively slow, and slag is stagnant in going out the bed of material
Accumulation is stayed to affect normal discharging.
Preferably, improve as a kind of, charging aperture is infundibulate, the sidewall surfaces of charging aperture are smooth.So, increase charging
Mouthful charging area, reduce the friction to serosity for the side wall of charging aperture, enter in screen cylinder beneficial to serosity, prevent slurry in charging aperture
Block.
Preferably, improve as a kind of, screen cylinder bottom is provided with cleaning door.After the completion of screener makees, open cleaning door,
Clear water is passed through by charging aperture, screen cylinder is carried out, the waste water after cleaning is discharged by cleaning door, thus, is easy to the day of equipment
Often clear up.
Brief description
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representation of screen cylinder in the embodiment of the present invention.
Specific embodiment
Below by specific embodiment, the present invention is further detailed explanation:
Reference in Figure of description includes: housing 1, dividing plate 2, goes out the bed of material 3, discharging opening 4, discharge valve 5, reducing motor
6th, rotary shaft 7, packing auger blade 8, screen cylinder 9, sieve aperture 10, aspirating unit 11, ventilative material baffle 12, impeller 13, cover plate 14, charging aperture
15.
Embodiment is substantially as shown in Figure 1: a kind of upward flow type pressure sieve, including housing 1, is provided with four layers of dividing plate 2 in housing 1,
Four layers of dividing plate 2 by be separated into motor room inside housing 1 and four layers go out the bed of material 3, four layers go out the bed of material 3 and are respectively equipped with four discharging openings 4,
Same go out the bed of material 3 on the equal edge of four discharging openings 4 excircle that goes out the bed of material 3 be uniformly distributed, be equipped with discharge valve at discharging opening 4
5, it is provided with reducing motor 6 in motor room, reducing motor 6 is provided with the rotary shaft 7 running through housing 1 top, rotary shaft 7 is provided with cone
The packing auger blade 8 of shape, packing auger blade 8 lower end is big end, and upper end is small end, as shown in Fig. 2 sheathed in rotary shaft 7 run through four layers
The screen cylinder 9 of dividing plate 2, screen cylinder 9 inner hollow, screen cylinder 9 is tapered, and screen cylinder 9 upper end is small end, and screen cylinder 9 lower end is big end, screen cylinder 9
Surface is evenly distributed with several sieve apertures 10, and the aperture of several sieve apertures 10 is sequentially reduced along the supreme extreme direction in lower end of screen cylinder, screen cylinder 9
Bottom is provided with cleaning door, and housing 1 top is connected with aspirating unit 11 by ventilative material baffle 12, is provided with impeller in aspirating unit 11
13, the upper end of rotary shaft 7 is fixedly connected with the lower end of impeller 13, and aspirating unit 11 upper end is rotatably connected to cover plate 14, housing 1 upper end
It is additionally provided with funnel shaped charging aperture 15, the sidewall surfaces of charging aperture 15 are smooth.
In the present embodiment, during practical application, pulp slurry is entered in screen cylinder 9 by charging aperture 15, serosity flows downward, stream
During dynamic, few fibers slag in serosity through the small opening on screen cylinder 9 enter corresponding go out the bed of material 3 in, realize serosity
Preliminary screening.Reducing motor 6 works, and makes rotary shaft 7 rotate, screen cylinder 9 is followed rotary shaft 7 and rotated, the fiber in serosity and slag
Start to do centrifugal motion, the heavy slag in serosity first obtains larger centrifugal force, got rid of and fly to the sieve aperture 10 of screen cylinder 9 bottom, and lead to
Cross sieve aperture 10 and move to the going out in the bed of material 3 of bottom, discharge out the bed of material 3 by going out the discharging opening 4 on the bed of material 3, and quality is less
Slag, due to there is no enough centrifugal force, is now still trapped in screen cylinder 9.
Rotary shaft 7 rotates and drives impeller 13 to rotate, and forms negative pressure below impeller 13 and top between, and serosity is made in negative pressure
Moved upwards with lower beginning.Slag in serosity, while doing centrifugal motion, rises, under the turning effort of packing auger blade 8,
Serosity is stirred and lifting upwards, and in uphill process, the centrifugal motion linear velocity of slag is followed screen cylinder 9 and gradually accelerated, institute
Also therefore it is gradually increased by centrifugal force.Wherein, the slag of heavier mass first obtains enough centrifugal force in lower, and in lower
Got rid of and flown to corresponding larger sieve aperture 10, and via sieve aperture 10 move to corresponding go out the bed of material 3 in, then pass through corresponding go out
Material mouth 4 discharges out the bed of material 3, and the slag of lighter weight just obtains enough centrifugal force in higher position, is got rid of winged in higher position
To corresponding less sieve aperture 10, and discharge screen cylinder 9.During serosity moves upwards, the slag of different quality is via difference
Sieve aperture 10 priority at highly place got rid of fly to corresponding go out the bed of material 3 in, and discharged by going out the discharging opening 4 on the bed of material 3, thus real
Existing the multiple of slag efficiently separates, and lifts disintegrate-quality.
By adjusting the closing degree to aspirating unit 11 for the cover plate 14, change the rate of climb and the screening speed of serosity, thus
Screening efficiency and screening precision are effectively adjusted, and by the opening degree of discharge valve 5, discharging speed is adjusted
Section so that discharging everything goes well with your work carries out.
After the completion of screener makees, open cleaning door, and clear water is passed through by charging aperture 15, screen cylinder 9 is carried out, cleaning
Waste water cleaned door discharger afterwards, is achieved in the daily cleaning to device.
Above-described is only embodiments of the invention, the general knowledge here such as known concrete structure and/or characteristic in scheme
Excessively describe.It should be pointed out that for a person skilled in the art, on the premise of without departing from present configuration, also
Some deformation can be made and improve, these also should be considered as protection scope of the present invention, these are real all without the impact present invention
The effect applied and practical applicability.This application claims protection domain should be defined by the content of its claim, description
In specific embodiment etc. record the content that can be used for explaining claim.
Claims (7)
1. a kind of upward flow type pressure sieve, including housing it is characterised in that: be provided with multilayer insulating panel in described housing, multilayer insulating panel will
Described enclosure interior is separated into several layers and goes out the bed of material, goes out the bed of material and is equipped with discharging opening, described housing bottom is provided with reducing motor, slows down
Motor is provided with the rotary shaft running through case top, described rotary shaft is arranged with the screen cylinder running through multilayer insulating panel, inside screen cylinder
Hollow, screen cylinder is tapered, and screen cylinder upper end is small end, and screen cylinder lower end is big end, and screen cylinder surface is evenly distributed with several sieve apertures, number
The aperture of individual sieve aperture is sequentially reduced along the supreme extreme direction in lower end of screen cylinder, and described case top is provided with aspirating unit, sets in aspirating unit
There is impeller, the upper end of described rotary shaft is fixedly connected with the lower end of impeller, described aspirating unit upper end is rotatably connected to cover plate, described
Housing upper end is additionally provided with charging aperture.
2. upward flow type pressure sieve according to claim 1 it is characterised in that: described rotary shaft is provided with the auger leaf of taper
Piece, packing auger blade lower end is big end, and upper end is small end.
3. upward flow type pressure sieve according to claim 2 it is characterised in that: described aspirating unit is provided with the junction of housing
Ventilative material baffle.
4. upward flow type pressure sieve according to claim 3 it is characterised in that: go out the bed of material described in each and be equipped with multiple dischargings
Mouthful, multiple discharging openings are all uniformly distributed along the excircle of the bed of material that is located.
5. upward flow type pressure sieve according to claim 4 it is characterised in that: described discharge outlet is equipped with discharge valve.
6. upward flow type pressure sieve according to claim 5 it is characterised in that: described charging aperture be infundibulate, charging aperture
Sidewall surfaces are smooth.
7. upward flow type pressure sieve according to claim 6 it is characterised in that: described screen cylinder bottom is provided with cleaning door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011321.7A CN106368038B (en) | 2016-11-17 | 2016-11-17 | A kind of upward flow type pressure sieve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011321.7A CN106368038B (en) | 2016-11-17 | 2016-11-17 | A kind of upward flow type pressure sieve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106368038A true CN106368038A (en) | 2017-02-01 |
| CN106368038B CN106368038B (en) | 2017-11-24 |
Family
ID=57891391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611011321.7A Active CN106368038B (en) | 2016-11-17 | 2016-11-17 | A kind of upward flow type pressure sieve |
Country Status (1)
| Country | Link |
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| CN (1) | CN106368038B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108411676A (en) * | 2018-05-30 | 2018-08-17 | 山东杰锋机械制造有限公司 | Energy-efficient paper pulp coarse sizing system |
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|---|---|---|---|---|
| JPS49134902A (en) * | 1973-04-02 | 1974-12-25 | ||
| CA2379425A1 (en) * | 2001-03-28 | 2002-09-28 | Voith Paper Patent Gmbh | Pressure screen to remove impurities from a paper fiber suspension containing impurities and its use |
| CN101029460A (en) * | 2006-09-30 | 2007-09-05 | 泰安市泰山第一轻工机械有限公司 | Pulp screen for cooking and digesting papermaking pulp |
| CN102051837A (en) * | 2010-11-15 | 2011-05-11 | 李�昊 | Screen cylinder and multistage pulp pressure screen with same |
| CN102441524A (en) * | 2011-08-23 | 2012-05-09 | 王华业 | Vertical rotary multi-layer grading sieve |
| CN202865676U (en) * | 2012-10-31 | 2013-04-10 | 李风志 | Multilevel sieve for paper pulp |
| CN204602586U (en) * | 2015-01-14 | 2015-09-02 | 苏州赛胜创机电科技有限公司 | A kind of cylinder regulates sand sieving machine |
| CN105887544A (en) * | 2016-04-15 | 2016-08-24 | 广西科技大学 | Fiber separator rotor and fiber separation device |
| CN205550807U (en) * | 2016-04-05 | 2016-09-07 | 常州全一涂料科技有限公司 | A dual sieving mechanism for powder coating |
| CN206279389U (en) * | 2016-11-17 | 2017-06-27 | 绥阳县双龙纸业有限公司 | A kind of upward flow type pressure sieve |
-
2016
- 2016-11-17 CN CN201611011321.7A patent/CN106368038B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49134902A (en) * | 1973-04-02 | 1974-12-25 | ||
| CA2379425A1 (en) * | 2001-03-28 | 2002-09-28 | Voith Paper Patent Gmbh | Pressure screen to remove impurities from a paper fiber suspension containing impurities and its use |
| CN101029460A (en) * | 2006-09-30 | 2007-09-05 | 泰安市泰山第一轻工机械有限公司 | Pulp screen for cooking and digesting papermaking pulp |
| CN102051837A (en) * | 2010-11-15 | 2011-05-11 | 李�昊 | Screen cylinder and multistage pulp pressure screen with same |
| CN102441524A (en) * | 2011-08-23 | 2012-05-09 | 王华业 | Vertical rotary multi-layer grading sieve |
| CN202865676U (en) * | 2012-10-31 | 2013-04-10 | 李风志 | Multilevel sieve for paper pulp |
| CN204602586U (en) * | 2015-01-14 | 2015-09-02 | 苏州赛胜创机电科技有限公司 | A kind of cylinder regulates sand sieving machine |
| CN205550807U (en) * | 2016-04-05 | 2016-09-07 | 常州全一涂料科技有限公司 | A dual sieving mechanism for powder coating |
| CN105887544A (en) * | 2016-04-15 | 2016-08-24 | 广西科技大学 | Fiber separator rotor and fiber separation device |
| CN206279389U (en) * | 2016-11-17 | 2017-06-27 | 绥阳县双龙纸业有限公司 | A kind of upward flow type pressure sieve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108411676A (en) * | 2018-05-30 | 2018-08-17 | 山东杰锋机械制造有限公司 | Energy-efficient paper pulp coarse sizing system |
| CN108411676B (en) * | 2018-05-30 | 2023-07-18 | 山东杰锋机械制造有限公司 | High-efficiency energy-saving pulp coarse screening system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106368038B (en) | 2017-11-24 |
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Effective date of registration: 20180102 Address after: 200 No. 401320 Chongqing District of Banan City Long Island Bay Chongqing South Road (Longhai building two floor) Patentee after: Chongqing Bajun strong intellectual property service Co. Ltd. Address before: 563319 Huang mud bridge, Fenghua Town, Suiyang County, Zunyi, Guizhou Patentee before: Suiyang County Shuanglong Paper Industry Co., Ltd. |
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Effective date of registration: 20180124 Address after: 563319 Huang mud bridge, Fenghua Town, Suiyang County, Zunyi, Guizhou Patentee after: Suiyang County Shuanglong Paper Industry Co., Ltd. Address before: 200 No. 401320 Chongqing District of Banan City Long Island Bay Chongqing South Road (Longhai building two floor) Patentee before: Chongqing Bajun strong intellectual property service Co. Ltd. |
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Effective date of registration: 20201203 Address after: 314503 Kangding Road, Tongxiang City, Zhejiang, Jiaxing Patentee after: TONGXIANG HENGCHANG PAPER AND PLASTIC Co.,Ltd. Address before: 563319 Huang Zhen bridge, Fenghua Town, Suiyang County, Guizhou, Zunyi Patentee before: SUIYANG COUNTY SHUANGLONG PAPER INDUSTRY Co.,Ltd. |