CN210287949U - Pressure screen - Google Patents
Pressure screen Download PDFInfo
- Publication number
- CN210287949U CN210287949U CN201921176521.7U CN201921176521U CN210287949U CN 210287949 U CN210287949 U CN 210287949U CN 201921176521 U CN201921176521 U CN 201921176521U CN 210287949 U CN210287949 U CN 210287949U
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- Prior art keywords
- screen
- sieve
- casing
- fixed
- adjusting
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- 239000007788 liquid Substances 0.000 claims abstract description 33
- 239000013049 sediment Substances 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 15
- 239000000835 fiber Substances 0.000 description 8
- 238000012216 screening Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
The utility model discloses a pressure screen, which comprises a housin, the casing outer wall is provided with the thick liquid mouth that advances that sets up along casing tangential direction, good thick liquid export and tail thick liquid export, be provided with the screen drum in the casing, be equipped with the rotor subassembly in the screen drum, the screen drum below sets up heavy sediment entrapment jar, the screen drum is including connecting the fixed sieve of casing and overlapping the screen control outside locating the fixed sieve, the screen control butt just rotates in the fixed sieve and connects in the fixed sieve, the fixed cover of screen control outer wall is equipped with driven ring gear, driven ring gear one side meshing has the driving gear, the coaxial application of force axle that has passed the casing that sets firmly on the driving gear, application of force axle location is rotated and. Rotate the application of force axle, drive driven ring gear through the driving gear and rotate, make the relatively fixed sieve of adjusting sieve rotate, and then adjust the relative position between fixed sieve screen slot and the adjusting sieve screen slot, and then adjusted the screen slot size of screen cylinder, the realization can pass the regulation of the fibrous size of screen cylinder, and then has adjusted the consistency of the good thick liquid of selecting, satisfies various thick liquid demands of selecting.
Description
Technical Field
The utility model relates to a papermaking equipment, concretely relates to pressure screen.
Background
A pressure screen is a device used to screen the fine pulp of a pulp and paper making system. The equipment mainly comprises a shell, a rotor, a screen cylinder, a transmission device, a lifting device and the like.
Current pressure sieve, for example patent that patent publication number is CN202730529U, this patent discloses a pressure sieve, and this pressure sieve includes the casing, and the casing outer wall is provided with into thick liquid mouth, good thick liquid export and the tail thick liquid export that sets up along casing tangential direction, sets up transmission shaft, rotor and screen drum in the casing, and transmission shaft drive rotor rotates, and the rotor is located the screen drum, and good thick liquid export is located the screen drum outside, and the tail thick liquid export is located the screen drum top, and the screen drum below sets up heavy sediment entrapment jar. The excircle circumference screen drum direction along the transmission shaft extends and is provided with a plurality of support arms, and the rigid coupling has the rotor between support arm and the screen drum inner wall. Each group of support arms are fixedly connected with a drop-shaped rotor wing, each group of support arms oppositely arranged on the outer circumference of the transmission shaft are arranged on the same straight line, and the four groups of support arms are arranged at equal intervals along the outer circumference of the transmission shaft.
The pressurized screen during operation thick liquid flows and gets into pressurized screen inside from advancing the thick liquid mouth from the tangent line of pressure screen lower part along casing axial cross section with certain pressure, and flow from bottom to top, because the screen drum is inside and outside to have certain pressure differential, the rotation of rotor plays the pushing action again to the thick liquids in the screen drum in addition, make the short-staple pass through screen slot or sieve mesh and outflow rapidly, short-staple and good thick liquid are discharged from the good thick liquid export that is located the screen drum outside, tail thick liquid such as bold impurity and thick fibre can not pass through screen slot or sieve mesh, from the tail thick liquid export discharge pressurized screen who is located the screen drum top, accomplish once screening.
However, when the pressure screen is used for screening the good pulp and the tail pulp, the boundary of the good pulp and the tail pulp is fixed, namely the largest short fibers in the good pulp screened out are the same. Cannot meet diversified production requirements.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a pressure screen can select the thick liquids of different consistencies, satisfies diversified demand.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pressure screen, includes the casing, and outer wall of the housing is provided with into thick liquid mouth, good thick liquid export and the tail thick liquid export that sets up along casing tangential direction, is provided with the screen cylinder in the casing, is equipped with the rotor subassembly in the screen cylinder, and the screen cylinder below sets up heavy sediment entrapment jar, the screen cylinder is including connecting in the fixed sieve of casing and overlapping the regulation sieve outside the fixed sieve, regulation sieve butt just rotates in the fixed sieve and connects in the fixed sieve, and the fixed cover of regulation sieve outer wall is equipped with driven ring gear, and driven ring gear one side meshing has the driving gear, and the coaxial application of force axle that has set firmly the passed the casing on the driving gear, and application of force.
Through adopting above-mentioned technical scheme, the application of force axle is rotated to the accessible, drives driven ring gear through the driving gear and rotates, makes the relatively fixed sieve of adjusting sieve rotate, and then adjusts the relative position between fixed sieve groove and the adjusting sieve groove, and then has adjusted the sieve groove size of screen drum, realizes the regulation of the fibrous size of the drum that can pass sieve, and then has adjusted the consistency of the good thick liquid of selecting, satisfies various thick liquid demands of selecting.
The utility model discloses a further set up to: the screen drum is provided with a limiting mechanism for fixedly connecting the adjusting screen and the fixed screen.
Through adopting above-mentioned technical scheme, drive the application of force axle through driving motor and rotate, realize the location rotation of application of force axle relative casing. After adjusting the screen drum screen groove to a suitable width, the adjusting screen can be fixed relative to the fixed screen through the limiting mechanism. When driving motor drove the application of force axle and rotated this moment, whole screen cylinder all can be driven and is rotating, makes the relative speed grow between rotor subassembly and the screen cylinder, improves screening efficiency.
The utility model discloses a further set up to: the outer walls of the two ends of the fixed sieve are respectively provided with a support ring along the circumferential direction, the support rings are rotatably connected to the shell and axially limited with the shell, and the two ends of the adjusting sieve are respectively abutted to the support rings.
By adopting the technical scheme, the supporting ring can play a role in limiting and supporting the adjusting screen, so that when the limiting mechanism does not fix the adjusting screen and the fixed screen together, the adjusting screen can rotate relative to the fixed screen more stably. The width of the screen groove of the screen cylinder can be conveniently adjusted.
The utility model discloses a further set up to: the casing upper end is the opening setting, and the casing upper end is equipped with the lid that is used for sealing the casing, the lid can be dismantled and connect in the casing.
Through adopting above-mentioned technical scheme, if the screen cylinder needs to wash after using a period, can open the lid and come the manual work to wash the screen cylinder, made things convenient for the maintenance of pressure screen.
The utility model discloses a further set up to: stop gear includes threaded connection in the actuating lever of support ring, locates the actuating lever towards the first magnet of adjusting sieve one end, set up in the circular arc groove of adjusting sieve up end and locate the second magnet of circular arc inslot, first magnet inlays and locates in the circular arc inslot and actuation in second magnet.
By adopting the technical scheme, when the adjusting sieve is required to be fixed relative to the fixed sieve, the cover body can be opened, and the driving rod is hung and screwed, so that the first magnet is embedded in the arc groove and attracted to the second magnet. The adjusting sieve and the fixed sieve are fixed together by the adsorption force between the first magnet and the second magnet. When the screen drum screen groove needs to be adjusted, the driving rod can be rotated, so that the first magnet leaves the arc groove and is hidden in the supporting ring, and the adjusting screen can rotate relative to the fixed screen at the moment.
The utility model discloses a further set up to: the limiting mechanism is provided with a plurality of limiting mechanisms along the circumferential direction of the support ring.
Through adopting above-mentioned technical scheme to it is fixed to be the multiple spot between messenger's adjusting sieve and the fixed sieve, makes the fixed more stable.
The utility model discloses a further set up to: the driving rod is provided with a force application disc convenient for applying force to the driving rod at one end far away from the first magnet.
By adopting the technical scheme, the force can be applied to the driving rod by the force application disc, the force arm is increased, and the driving rod can be rotated more conveniently.
The utility model discloses a further set up to: a flushing pipe is fixedly arranged on the shell along the radial direction of the screen drum in a penetrating manner, and the water outlet end of the flushing pipe faces the outer wall of the adjusting screen.
Through adopting above-mentioned technical scheme, after using a period, accessible flushing pipe sprays clear water to the adjusting sieve to wash out remaining fibre on the screen cylinder totally, made things convenient for the cleanness to the screen cylinder.
The utility model has the advantages of it is following: 1. the consistency of the screened good pulp can be adjusted, and the requirements of various pulp selection are met; 2. the screening efficiency is high; 3. the screen cylinder is convenient to clean and maintain.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment;
FIG. 2 is a sectional view of the first embodiment;
FIG. 3 is a cross-sectional view of a rotor assembly according to one embodiment;
FIG. 4 is an enlarged view taken at A in FIG. 2;
FIG. 5 is a sectional view of the second embodiment.
Reference numerals: 1. a housing; 2. a pulp inlet; 3. a good pulp outlet; 4. a tail slurry outlet; 5. a cover body; 6. a force applying handle; 7. a rotor assembly; 8. a drive shaft; 9. a servo motor; 10. a support arm; 11. a rotor; 12. fixing the screen; 13. adjusting the sieve; 14. a screen slot; 15. a support ring; 16. a driven gear ring; 17. a driving gear; 18. a force application shaft; 19. a drive motor; 20. a limiting mechanism; 21. a drive rod; 22. a first magnet; 23. a second magnet; 24. a force application disc; 25. an arc groove; 26. a flush pipe; 27. a water pump; 28. a screen cylinder; 29. and a heavy slag collecting tank.
Detailed Description
As shown in fig. 1 and 2, a pressure screen includes a housing 1. The upper end of the shell 1 is provided with an opening, the upper end of the shell 1 is provided with a cover body 5 for closing the shell 1, and the cover body 5 is abutted against the upper end surface of the shell 1. One end of the cover body 5 is rotatably connected to the shell body 1, and a force application handle 6 for conveniently applying force to the cover body 5 is arranged on the cover body 5.
As shown in fig. 1 and 2, a screen cylinder 28 is provided in the casing 1. The outer wall of the shell 1 is provided with a pulp inlet 2, a good pulp outlet 3 and a tail pulp outlet 4 which are arranged along the tangential direction of the shell 1. The good pulp outlet 3 is positioned outside the screen cylinder 28, the tail pulp outlet 4 is positioned above the screen cylinder 28, and the heavy slag trapping tank 29 is arranged below the screen cylinder 28. As shown in fig. 2 and 3, a rotor assembly 7 is provided in the screen cylinder 28. Rotor subassembly 7 includes transmission shaft 8 that rotates and connects in casing 1, is used for driving transmission shaft 8 pivoted servo motor 9, along transmission shaft 8 radial fixed connection in transmission shaft 8's support arm 10, fixed connection in support arm 10 keep away from transmission shaft 8 one end rotor 11. The servo motor 9 is fixedly mounted to the housing 1. Four support arms 10 are arranged at equal intervals along the circumference of the transmission shaft 8. The rotor 11 is arranged in a drop shape.
Pressure screen during operation thick liquid flows and gets into inside the pressure screen by advancing thick liquid mouth 2 from the tangent line of 1 axial cross section of casing from the pressure screen lower part with certain pressure, transmission shaft 8 drives rotor 11 and rotates, rotor 11's rotation plays the pushing action to the thick liquids in the screen cylinder 28, make the short-staple pass through screen cylinder 28 and outflow fast, short-staple and good thick liquid are from being located the good thick liquid export 3 discharge in the screen cylinder 28 outside, tail thick liquids such as bold impurity and thick fibre can not pass through screen cylinder 28, from being located the 4 discharge pressure screens of tail thick liquid export above screen cylinder 28, accomplish once screening.
As shown in fig. 2 and 3, the screen cylinder 28 includes a fixed screen 12 and an adjusting screen 13 sleeved outside the fixed screen 12. Rotor assembly 7 is located within stationary screen 12. The fixed screen 12 and the adjusting screen 13 are both provided with screen slots 14, and the screen slots 14 are arranged along the axial direction of the screen cylinder 28. The screen slots 14 of the fixed screen 12 and the screen slots 14 of the adjusting screen 13 correspond to each other one by one and are communicated with each other. As shown in fig. 2 and 4, the outer walls of the two ends of the fixed screen 12 are respectively provided with a support ring 15 along the circumferential direction thereof, the support rings 15 are rotatably connected to the housing 1 and axially limited with the housing 1, and the two ends of the adjusting screen 13 are respectively abutted against the support rings 15. The adjusting screen 13 abuts against the fixed screen 12 and is rotatably connected to the fixed screen 12. The outer wall of the adjusting screen 13 is fixedly sleeved with a driven gear ring 16, one side of the driven gear ring 16 is meshed with a driving gear 17, a force application shaft 18 penetrating through the shell 1 is coaxially and fixedly arranged on the driving gear 17, and the force application shaft 18 is rotatably connected to the shell 1. The shell 1 is provided with a driving motor 19 for driving the force application shaft 18 to rotate, and the body of the driving motor 19 is fixedly arranged at the upper end of the shell 1.
The force application shaft 18 is driven to rotate by the driving motor 19, the driven gear ring 16 is driven to rotate by the driving gear 17, the adjusting screen 13 rotates relative to the fixed screen 12, the relative position between the screen groove 14 of the fixed screen 12 and the screen groove 14 of the adjusting screen 13 is adjusted, and the size of the screen groove 14 of the screen cylinder 28 is adjusted.
As shown in fig. 2 and 4, the screen cylinder 28 is provided with a position limiting mechanism 20 for fixedly connecting the adjusting screen 13 and the fixed screen 12. The limiting mechanism 20 is provided with a plurality of limiting mechanisms along the circumferential direction of the support ring 15. The stopper mechanism 20 includes a drive lever 21, a first magnet 22, and a second magnet 23. The driving rod 21 is axially parallel to the screen cylinder 28 and passes through the support ring 15. The driving rod 21 is screwed to the support ring 15. The first magnet 22 is fixedly connected to one end of the driving rod 21 near the adjusting screen 13. An end of the driving rod 21 far away from the adjusting screen 13 is coaxially and fixedly connected with an application plate 24. The upper end surface of the adjusting screen 13 is provided with an arc groove 25 along the circumferential direction of the adjusting screen 13. The second magnet 23 is circumferentially arranged along the adjusting screen 13 and embedded in the arc groove 25. The second magnet 23 is fixedly connected to the arc groove 25.
When the screen slot 14 of the screen cylinder 28 is adjusted to a proper size, the cover 5 can be opened, and the driving rod 21 is suspended and screwed, so that the first magnet 22 is embedded in the arc slot 25 and attracted to the second magnet 23. The adjusting sieve 13 and the fixed sieve 12 are fixed together by the attractive force between the first magnet 22 and the second magnet 23. At this time, when the driving motor 19 drives the adjusting screen 13 to rotate, the whole screen cylinder 28 can be driven to rotate, and the rotating speed of the rotor 11 relative to the screen cylinder 28 is increased.
The working principle of the pressure screen is as follows:
1. before the work, the cover body 5 is turned open, the driving rod 21 is rotated by rotating the force application disc 24, and the first magnet 22 is ensured to leave the arc groove 25;
2. starting a driving motor 19 to enable the adjusting screen 13 to rotate relative to the fixed screen 12 until the size of the screen groove 14 is proper;
3. the driving rod 21 is rotated by rotating the force application disc 24, so that the first magnet 22 enters the arc groove 25 and is attracted to the second magnet 23, and the adjusting sieve 13 is fixed relative to the fixed sieve 12 at the moment;
4. rotating the cover body 5 to ensure that the cover body 5 is stably covered at the opening of the shell body 1;
5. pulp flow enters the pressure screen from the pulp inlet 2 at a certain pressure, the transmission shaft 8 drives the rotary wing 11 to rotate, the rotation of the rotary wing 11 plays a role in pushing pulp in the screen cylinder 28, short fibers rapidly flow out through the screen slot 14, short fibers and good pulp are discharged from the good pulp outlet 3 positioned at the outer side of the screen cylinder 28, tail pulp such as large impurities, thick fibers and the like cannot pass through the screen slot 14, and the pressure screen is discharged from the tail pulp outlet 4 positioned above the screen cylinder 28, so that primary screening is completed;
6. meanwhile, the driving motor 19 can drive the adjusting screen 13 and the fixed screen 12 to rotate together, and the rotating direction is opposite to that of the transmission shaft 8, so that the relative rotating speed of the rotor 11 and the screen cylinder 28 is increased, and the production efficiency is improved.
Example two:
the difference between the second embodiment and the first embodiment is that, as shown in fig. 5, in order to facilitate cleaning of the screen cylinder 28, a flush pipe 26 is fixed on the housing 1 along the radial direction of the screen cylinder 28, and the water outlet end of the flush pipe 26 faces the outer wall of the adjusting screen 13. A suction pump 27 is provided on the flush pipe 26. After a period of use, clean water may be injected through the flush pipe 26 to the screen 13 to flush out any remaining fibers on the screen cylinder 28.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a pressure screen, includes casing (1), and casing (1) outer wall is provided with into thick liquid mouth (2), good thick liquid export (3) and tail thick liquid export (4) that set up along casing (1) tangential direction, is provided with screen cylinder (28) in casing (1), is equipped with rotor subassembly (7) in screen cylinder (28), and screen cylinder (28) below sets up heavy sediment entrapment jar (29), characterized by: the screen cylinder (28) is including connecting in the fixed sieve (12) of casing (1) and overlapping the adjusting sieve (13) of locating the outer fixed sieve (12), adjusting sieve (13) butt is in fixed sieve (12) and rotate and connect in fixed sieve (12), and the fixed cover of adjusting sieve (13) outer wall is equipped with driven ring gear (16), and driven ring gear (16) one side meshing has driving gear (17), and the coaxial application of force axle (18) that pass casing (1) that sets firmly on driving gear (17), and application of force axle (18) location is rotated and is connected in casing (1).
2. A pressure screen as claimed in claim 1, wherein: the screen drum is characterized in that a driving motor (19) used for driving the force application shaft (18) to rotate is arranged on the shell (1), and a limiting mechanism (20) used for fixedly connecting the adjusting screen (13) and the fixed screen (12) is arranged on the screen drum (28).
3. A pressure screen according to claim 2, wherein: the outer walls of the two ends of the fixed sieve (12) are respectively provided with a support ring (15) along the circumferential direction of the fixed sieve, the support rings (15) are rotatably connected to the shell (1) and are axially limited with the shell (1), and the two ends of the adjusting sieve (13) are respectively abutted to the support rings (15).
4. A pressure screen according to claim 3, wherein: the casing (1) upper end is the opening setting, and casing (1) upper end is equipped with lid (5) that are used for sealing casing (1), lid (5) can be dismantled and connect in casing (1).
5. A pressure screen according to claim 4, wherein: stop gear (20) include threaded connection in the actuating lever (21) of support ring (15), locate actuating lever (21) towards first magnet (22) of adjusting sieve (13) one end, set up in arc groove (25) of adjusting sieve (13) up end and locate second magnet (23) in arc groove (25), first magnet (22) inlay locate in arc groove (25) and inhale and close in second magnet (23).
6. A pressure screen according to claim 5, wherein: the limiting mechanism (20) is provided with a plurality of limiting mechanisms along the circumferential direction of the support ring (15).
7. A pressure screen according to claim 6, wherein: and one end of the driving rod (21), which is far away from the first magnet (22), is provided with a force application disc (24) which is convenient for applying force to the driving rod (21).
8. A pressure screen according to claim 7, wherein: a flushing pipe (26) is radially and fixedly arranged on the shell (1) in a penetrating manner along the screen cylinder (28), and the water outlet end of the flushing pipe (26) faces the outer wall of the adjusting screen (13).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201921176521.7U CN210287949U (en) | 2019-07-24 | 2019-07-24 | Pressure screen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201921176521.7U CN210287949U (en) | 2019-07-24 | 2019-07-24 | Pressure screen |
Publications (1)
Publication Number | Publication Date |
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CN210287949U true CN210287949U (en) | 2020-04-10 |
Family
ID=70104391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201921176521.7U Expired - Fee Related CN210287949U (en) | 2019-07-24 | 2019-07-24 | Pressure screen |
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CN (1) | CN210287949U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115976870A (en) * | 2022-12-24 | 2023-04-18 | 台州森林造纸有限公司 | Paper grade (stock) pulp removes sediment system |
-
2019
- 2019-07-24 CN CN201921176521.7U patent/CN210287949U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115976870A (en) * | 2022-12-24 | 2023-04-18 | 台州森林造纸有限公司 | Paper grade (stock) pulp removes sediment system |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200410 |