CN206279389U - A kind of upward flow type pressure sieve - Google Patents
A kind of upward flow type pressure sieve Download PDFInfo
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- CN206279389U CN206279389U CN201621233651.6U CN201621233651U CN206279389U CN 206279389 U CN206279389 U CN 206279389U CN 201621233651 U CN201621233651 U CN 201621233651U CN 206279389 U CN206279389 U CN 206279389U
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- screen cylinder
- flow type
- type pressure
- rotary shaft
- upward flow
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Abstract
The utility model is related to pulp sifting equipment technical field, disclose a kind of upward flow type pressure sieve, including housing, multilayer insulating panel is provided with housing, multilayer insulating panel by enclosure interior be separated into it is several go out the bed of material, go out the bed of material and be equipped with discharging opening, housing bottom is provided with reducing motor, reducing motor is provided with the rotary shaft through case top, the screen cylinder through multilayer insulating panel is arranged with rotary shaft, screen cylinder inner hollow, screen cylinder is tapered, screen cylinder upper end is small end, screen cylinder lower end is big end, screen cylinder surface is evenly distributed with several sieve apertures, the aperture of several sieve apertures is sequentially reduced along the supreme extreme direction in lower end of screen cylinder, case top is provided with aspirating unit, impeller is provided with aspirating unit, the upper end of rotary shaft is fixedly connected with the lower end of impeller, aspirating unit upper end is rotatably connected to cover plate, housing upper end is additionally provided with charging aperture.By the utility model, efficiently separating for fiber slag in pulp slurry can be realized, and be capable of the service life of extension device.
Description
Technical field
The utility model is related to pulp sifting equipment technical field, and in particular to a kind of upward flow type pressure sieve.
Background technology
Upward flow type pressure sieve is that a kind of more universal screening installation is used in paper pulp production line, and traditional pressurized screen is main
Be drop streaming, when being screened, paper pulp slurry stream the direction of motion be it 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 this part mixed liquor flowing.
By contrast, upward flow type pressure sieve takes bottom to enter the up-flow structure that slurry, bottom re-scheduling slag, top arrange light slag,
Light impurity is raised to top slag-drip opening discharge naturally with the air in slurry, and heavy seeds one are to be discharged by bottom into body.Have
Residence time of the impurity in sieve area is shortened to effect, the possibility of impurity recycling is reduced, so as to efficiently solve drop streaming
The larger problem of pressurized screen energy ezpenditure, improves screening efficiency.
But, existing upward flow type pressure sieve when screening the pulp is carried out to paper pulp, also can by the part weight slag included in mixed liquor
By screening areas, and efficiently separating for weight slag can not be realized, in this process, weight slag can be made to rotor elements and screen drum
Into heavy wear so that the service life reduction of equipment.Also, during screening the pulp, the often part acceptable fiber in light slag
Also it is not implemented and efficiently separates, just drained in the lump, so as to cause the waste of the resources of production, is unfavorable for the processing of enterprise.
Utility model content
The utility model is intended to provide a kind of upward flow type pressure sieve, to realize efficiently separating for slag, and reduces to equipment
Abrasion, extension device service life.
To reach above-mentioned purpose, basic technology scheme of the present utility model is as follows：A kind of upward flow type pressure sieve, including shell
Body, is provided with multilayer insulating panel in housing, enclosure interior is separated into several layers and goes out the bed of material, gone out the bed of material and be equipped with discharging opening by multilayer insulating panel,
Housing bottom is provided with reducing motor, and reducing motor is provided with the rotary shaft through case top, is arranged with rotary shaft through many
The screen cylinder of layer dividing plate, screen cylinder inner hollow, screen cylinder is tapered, and screen cylinder upper end is small end, and screen cylinder lower end is big end, screen cylinder surface
Several sieve apertures are evenly distributed with, 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, is provided with impeller in aspirating unit, 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, housing 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 slurries flow downward, stream
During dynamic, few fibers slag in slurries through the small opening on screen cylinder into it is corresponding go out the bed of material in, realize slurries just
Step screening.Reducing motor works, and makes rotary shaft rotate, and because screen cylinder is arranged on the rotating shaft, now screen cylinder follows rotary shaft to turn
Dynamic, fiber and slag in slurries start to do centrifugal motion under the rotary action of screen cylinder, because the quality of weight slag is more than light
Slag, weight slag is in Qing Zha lower floors, 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 it is corresponding go out the bed of material in, and the less slag of quality is not due to having
Enough centrifugal force is obtained, is now still trapped in screen cylinder.
While rotary shaft is rotated, drive the impeller rotation that rotary shaft upper end is fixedly connected so that below impeller with it is upper
Negative pressure is formed between side, so as to attract the slurries in screen cylinder upwards, slurries is moved upwards.Slag in slurries is while be centrifuged
Motion, while rising, 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 follows screen cylinder gradually to accelerate, and suffered centrifugal force increases also therefore gradually.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 it is 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 and is flown to the less sieve aperture in higher position, and via sieve aperture move to it is corresponding go out the bed of material in.Slurries are moved upwards
During, the slag of different quality successively got rid of via the sieve aperture at different height fly to it is corresponding go out the bed of material in so that real
Existing the multiple of slag efficiently separates, and lifts disintegrate-quality.
Aspirating unit is closed by cover plate, the air mass flow in aspirating unit reduces, the air around impeller is synchronized with impeller
Rotation, air drag suffered by impeller diminishes, therefore rotary speed is accelerated so that negative pressure is aggravated, accelerate slurries the rate of climb and
Screening speed, lifts screening efficiency.By adjusting closing degree of the cover plate to aspirating unit, change the rate of climb and the screening of slurries
Speed, so as to effectively be adjusted to screening efficiency and screening precision.
The beneficial effect of this programme：The rotation that the utility model passes through rotary shaft, drives screen cylinder and impeller rotation, makes slurry
Do centrifugal motion and rise, make the slag of different quality in slurry under different size of operating on centrifugal force, successively from slurries
Separate, so as to realize efficiently separating for slag and fiber in slurries, improve screening precision.And it is main in separation process
The negative pressure that utilize impeller to be formed drives slurries motion, the friction force between slurries and rotary shaft is reduced, so as to reduce slurry
Abrasion of the liquid to equipment, extends the service life of device.Additionally, being changed by adjusting cover plate to the closing degree of aspirating unit
Become the rate of climb and screening speed of slurries, so as to reach the effective regulation to screening efficiency and screening precision.
Preferably, improved as one kind, rotary shaft is provided with the packing auger blade of taper, packing auger blade lower end is big end, on
It is small end to hold.Packing auger blade rotation is driven when rotary shaft is rotated, packing auger blade rotation is stirred to slurries, in preventing slurries
Slag blocks sieve aperture, while promoting slurries to rise, lifts screening efficiency.
Preferably, improved as one kind, aspirating unit is provided with ventilative material baffle with the junction of housing.Ventilative material baffle will be inhaled
Air flue and screen cylinder are separated, and in preventing slurries from ascending into aspirating unit, and influence the normal work of impeller.
Preferably, improved as one kind, each goes out the bed of material and is equipped with multiple discharging openings, and multiple discharging openings discharge along place
The excircle of layer is uniformly distributed.In this way, being easy to 360 degree in time dischargings of the screen cylinder in rotary course, accelerate discharging efficiency, prevent
Slag is detained in the bed of material is gone out and causes discharging abnormal.
Preferably, improved as one kind, discharge outlet is equipped with discharge valve.It is right by the opening degree of discharge valve
Discharging speed is controlled, and prevents discharging too fast, and slag congestion is in discharging opening, or discharges slowly, and slag is stagnant in the bed of material is gone out
Stay accumulation and influence normal discharging.
Preferably, improved as one kind, charging aperture is infundibulate, and the sidewall surfaces of charging aperture are smooth.In this way, increase charging
The charging area of mouth, reduces friction of the side wall of charging aperture to slurries, enters in screen cylinder beneficial to slurries, prevents slurry in charging aperture
Block.
Preferably, improved as one kind, screen cylinder bottom is provided with cleaning door.After the completion of screener makees, cleaning door is opened,
Clear water is passed through by charging aperture, screen cylinder is cleaned, the waste water after cleaning is discharged by cleaning door, thus, be easy to the day of equipment
Often cleaning.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation of screen cylinder in the utility model embodiment.
Specific embodiment
The utility model is described in further detail below by specific embodiment：
Reference in Figure of description includes：Housing 1, dividing plate 2, go out the bed of material 3, discharging opening 4, discharge valve 5, slow down
Motor 6, 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
Mouth 15.
Embodiment is substantially as shown in Figure 1：Four layers of dividing plate 2 are provided with a kind of upward flow type pressure sieve, including housing 1, housing 1,
Four layers of dividing plate 2 will be separated into motor room inside housing 1 and four layers go out the bed of material 3, and four layers go out the bed of material 3 and are respectively equipped with four discharging openings 4,
It is same go out the bed of material 3 on four discharging openings 4 be uniformly distributed along the excircle for going out the bed of material 3, be equipped with discharge valve at discharging opening 4
5, reducing motor 6 is provided with motor room, reducing motor 6 is provided with the rotary shaft 7 through the top of housing 1, and rotary shaft 7 is provided with cone
The packing auger blade 8 of shape, the lower end of packing auger blade 8 is big end, and upper end is small end, as shown in Fig. 2 being arranged in rotary shaft 7 through four layers
The screen cylinder 9 of dividing plate 2, the inner hollow of screen cylinder 9, screen cylinder 9 is tapered, and the upper end of screen cylinder 9 is small end, and the lower end of screen cylinder 9 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 the top of housing 1 is connected by ventilative material baffle 12 with aspirating unit 11, and impeller is provided with aspirating unit 11
13, the upper end of rotary shaft 7 is fixedly connected with the lower end of impeller 13, and the upper end of aspirating unit 11 is rotatably connected to cover plate 14, the upper end of housing 1
Funnel shaped charging aperture 15 is additionally provided with, 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, slurries flow downward, stream
During dynamic, few fibers slag in slurries through the small opening on screen cylinder 9 into it is corresponding go out the bed of material 3 in, realize slurries
Preliminary screening.Reducing motor 6 works, and makes rotary shaft 7 rotate, and screen cylinder 9 follows rotary shaft 7 to rotate, fiber and slag in slurries
Start to do centrifugal motion, the heavy slag in slurries first obtains larger centrifugal force, flown to the sieve aperture 10 of the bottom of screen cylinder 9 by getting rid of, and lead to
Cross sieve aperture 10 and move to the going out in the bed of material 3 of bottom, the bed of material 3 is discharged out by the discharging opening 4 gone out on the bed of material 3, and quality is less
Slag is now still trapped in screen cylinder 9 due to there is no enough centrifugal force.
Rotary shaft 7 is rotated and drives impeller 13 to rotate, and forms negative pressure between top below impeller 13, and slurries are made in negative pressure
Start motion upwards with lower.Slag in slurries is while do centrifugal motion, while rise, under the turning effort of packing auger blade 8,
Slurries are able to agitation and upward lifting, and in uphill process, the centrifugal motion linear velocity of slag follows screen cylinder 9 gradually to accelerate, institute
Increased also therefore gradually 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 it is corresponding go out the bed of material 3 in, then by it is 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 just got rid of winged in higher position
At to corresponding smaller sieve aperture 10, and discharge screen cylinder 9.Upwards during motion, the slag of different quality is via difference for slurries
The priority of sieve aperture 10 at highly place got rid of fly to it is corresponding go out the bed of material 3 in, and discharged by the discharging opening 4 gone out on the bed of material 3, so that real
Existing the multiple of slag efficiently separates, and lifts disintegrate-quality.
By adjusting closing degree of the cover plate 14 to aspirating unit 11, change the rate of climb and screening speed of slurries, so that
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 is carried out.
After the completion of screener makees, cleaning door is opened, and clear water is passed through by charging aperture 15, screen cylinder 9 is cleaned, cleaned
The cleaned door discharger of waste water afterwards, is achieved in the daily cleaning to device.
Above-described is only embodiment of the present utility model, the general knowledge such as known concrete structure and/or characteristic in scheme
Excessive description is not made herein.It should be pointed out that for a person skilled in the art, before the utility model structure is not departed from
Put, some deformations and improvement can also be made, these should also be considered as protection domain of the present utility model, and these are all without shadow
Ring effect and practical applicability that the utility model is implemented.This application claims protection domain should be with its claim
Appearance is defined, and specific embodiment in specification etc. records 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：Multilayer insulating panel is provided with the housing, multilayer insulating panel will
The enclosure interior be separated into it is several go out the bed of material, go out the bed of material and be equipped with discharging opening, the housing bottom is provided with reducing motor, slow down
Motor is provided with the rotary shaft through case top, the screen cylinder through multilayer insulating panel is arranged with the rotary shaft, 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 the case top is provided with aspirating unit, is set in aspirating unit
There is impeller, the upper end of the rotary shaft is fixedly connected with the lower end of impeller, the 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：The 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：The 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, the excircle that multiple discharging openings go out the bed of material along place is uniformly distributed.
5. upward flow type pressure sieve according to claim 4, it is characterised in that：The discharge outlet is equipped with discharge valve.
6. upward flow type pressure sieve according to claim 5, it is characterised in that：The charging aperture is infundibulate, charging aperture
Sidewall surfaces are smooth.
7. upward flow type pressure sieve according to claim 6, it is characterised in that：The screen cylinder bottom is provided with cleaning door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621233651.6U CN206279389U (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 |
|---|---|---|---|
| CN201621233651.6U CN206279389U (en) | 2016-11-17 | 2016-11-17 | A kind of upward flow type pressure sieve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206279389U true CN206279389U (en) | 2017-06-27 |
Family
ID=59083570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621233651.6U Expired - Fee Related CN206279389U (en) | 2016-11-17 | 2016-11-17 | A kind of upward flow type pressure sieve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206279389U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368038A (en) * | 2016-11-17 | 2017-02-01 | 绥阳县双龙纸业有限公司 | Up-flow type pressure screen |
| CN107824418A (en) * | 2017-10-31 | 2018-03-23 | 界首市润安机械有限公司 | A kind of grain screens funnel |
| CN109701878A (en) * | 2018-12-29 | 2019-05-03 | 重庆诚阳农业发展有限公司 | Rice specific-gravity stoner |
-
2016
- 2016-11-17 CN CN201621233651.6U patent/CN206279389U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368038A (en) * | 2016-11-17 | 2017-02-01 | 绥阳县双龙纸业有限公司 | Up-flow type pressure screen |
| CN107824418A (en) * | 2017-10-31 | 2018-03-23 | 界首市润安机械有限公司 | A kind of grain screens funnel |
| CN107824418B (en) * | 2017-10-31 | 2020-07-28 | 界首市润安机械有限公司 | Grain screening funnel |
| CN109701878A (en) * | 2018-12-29 | 2019-05-03 | 重庆诚阳农业发展有限公司 | Rice specific-gravity stoner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170627 Termination date: 20181117 |