CN108468245B - Outflow type low-pulse net front-flowing pressure screen - Google Patents
Outflow type low-pulse net front-flowing pressure screen Download PDFInfo
- Publication number
- CN108468245B CN108468245B CN201810539712.9A CN201810539712A CN108468245B CN 108468245 B CN108468245 B CN 108468245B CN 201810539712 A CN201810539712 A CN 201810539712A CN 108468245 B CN108468245 B CN 108468245B
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- cone
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- 239000002002 slurry Substances 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000002893 slag Substances 0.000 abstract description 10
- 238000012216 screening Methods 0.000 description 9
- 238000007599 discharging Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
The invention discloses an outflow type low-pulse forward-flow pressure screen, which belongs to a pressure screen and structurally comprises an upper cover, a shell, a screen cylinder, a rotor, a bottom plate, a transmission shaft, a base and a transmission shaft driving mechanism, wherein a slurry inlet pipe, a slurry outlet pipe and a slag outlet pipe are arranged on the shell, the slag outlet pipe is arranged at the lower part of the shell, the slurry outlet pipe is positioned on the shell at the lower part of the rotor, the rotor comprises a rotary vane, rotor vane support rods, a rotor cone, a support plate, a rotor sleeve and a rotor cover plate, the support plate is positioned at the outer side of the rotor sleeve, the rotor cone is arranged at the outer side of the support plate, a plurality of rotor vane support rods are arranged at the outer side of the rotor cone, a rotor vane is respectively arranged on each rotor vane support rod, the rotary outer diameter formed by the rotor vanes is coaxial with an inner hole of the rotor sleeve, the rotor cover plate is arranged at the top of the rotor cone, and the rotor sleeve is connected with the transmission shaft. The invention has the characteristics that the pulp outlet is far away from the action area of the rotor, so that the pulp pulse is low, the net surfing quantitative is stable, and the pulp can be used when the paper machine runs at high speed.
Description
Technical Field
The invention relates to a pressure screen, in particular to an outflow type low-pulse net forward flow pressure screen.
Background
The front-screen flow pressure screen for pulping and papermaking is mainly an inner flow pressure screen and an outer flow pressure screen, however, the inner flow pressure screen has a larger structural problem, the rotor is a top cantilever type, the rotor is inclined after being used for a period of time, but the clearance requirement between the rotor and a screen cylinder is small, so that the rotor is rubbed with the screen cylinder when inclined, and the screen cylinder is damaged. Because the pulp outlet is close to the rotor wing, the outflow pressure screen is easy to generate larger pulp pulsation, has adverse effect on the quantitative production of the paper machine, and is easy to break paper when the paper machine runs at high speed.
Disclosure of Invention
The invention aims at providing an outflow type low-pulse pre-net flow pressure screen which aims at overcoming the defects in the prior art, and has the characteristics that a shell and a rotor are reasonably designed, so that a pulp outlet is far away from a rotor action area, the pulp pulse is low, the net surfing ration is stable, and the outflow type low-pulse pre-net flow pressure screen can be used when a paper machine runs at a high speed.
The technical scheme adopted for solving the technical problems is as follows: it includes upper cover, casing, screen cylinder, rotor, bottom plate, transmission shaft, base and transmission shaft actuating mechanism, the upper cover set up in the upper portion of casing, the bottom plate sets up in the lower part of casing, rotor, screen cylinder and transmission shaft set up respectively in the casing, the screen cylinder is located the rotor outside, the transmission shaft is located the rotor lower part, the bottom plate is located the base upper portion, transmission shaft actuating mechanism be located the base on and link to each other with the transmission shaft, the casing on be provided with into thick liquid pipe, play thick liquid pipe and scum pipe, the thick liquid pipe that advances set up in the upper portion of casing, the scum pipe sets up the lower part at the casing, play thick liquid pipe be located the casing of rotor lower part, the rotor include rotor wing, rotor wing branch, rotor cone, backup pad, rotor cover and rotor apron, the backup pad be located the outside of rotor cover, the outside of backup pad is provided with rotor cone, the outside of rotor cone is provided with a plurality of rotor wing, installs a rotor wing respectively on every rotor wing branch, the rotation external diameter that a plurality of rotor wings formed is coaxial with rotor cover hole, the rotor apron setting at the top of rotor cone, rotor cone is linked to each other with the rotor cover.
The rotor blade include plane, first arc surface, second arc surface and third arc surface, the plane set up in the inboard, first arc surface, second arc surface and third arc surface set up in the outside, planar both ends link to each other with first arc surface and third arc surface respectively, be provided with the second arc surface between first arc surface and the third arc surface.
The rotor blade supporting rod is of a cylindrical structure.
The upper part of the supporting plate is provided with a reinforcing rib which is respectively connected with the rotor cone and the rotor sleeve.
The rotor cone at the lower part of the supporting plate is provided with a plurality of circular exhaust holes.
The shell include cylinder barrel, toper barrel, inner tube, zhong, hang plate, flange in the casing, flange and casing lower flange in the casing, toper barrel set up in the cylinder barrel, its bottom links to each other with the cylinder barrel inner wall of play thick liquid pipe top, toper barrel and cylinder barrel between be provided with the zhong, lower part and the bottom plate of toper barrel between be provided with the inner tube, be provided with hang plate between the periphery of inner tube and the cylinder barrel, the casing upper flange set up in the upper portion of cylinder barrel, the cylinder barrel passes through the casing upper flange and links to each other with the upper cover, the casing in flange set up in the upper portion of toper barrel, the toper barrel passes through flange in the casing and links to each other with the screen cylinder top, the casing lower flange set up in the upper portion of inner tube, the inner tube passes through the casing lower flange and links to each other with the screen cylinder bottom, sediment pipe be linked together with the inner tube.
The upper surface of the conical cylinder body is higher than the lower surface of the slurry inlet pipe.
The transmission shaft driving mechanism comprises a motor, a motor frame, a small belt wheel, a triangular belt and a large belt wheel, wherein the motor is arranged on the motor frame, the motor frame is arranged on a base, the small belt wheel is arranged on a motor shaft of the motor and connected with the large belt wheel through the triangular belt, and the large belt wheel is arranged on the transmission shaft.
The upper cover consists of an elliptical end socket and an upper cover flange, wherein the upper cover flange is arranged at the outer side of the end socket, and a concentric exhaust pipe is arranged at the center of the elliptical end socket.
Compared with the prior art, the outflow type low-pulse pre-net flow pressure screen has the following outstanding beneficial effects: through reasonable design of the shell and the rotor, the slurry outlet is far away from the action area of the rotor, so that a good cleaning effect can be kept at a lower speed, the slurry pulse is low, the net surfing quantitative stability is realized, and the device can be used when a paper machine runs at a high speed;
the rotor blade of rotor adopts low pulse design, and the pulse is little, and the effect is soft, and rotor blade branch adopts cylindrical structure, avoids the thick liquids mass in the thick liquids to twine and hang on rotor blade branch. The conical rotor cone structure is beneficial to accelerating the deslagging speed of the bottom area of the rotor, meanwhile, the pressure balance of the screen cylinder from top to bottom is kept, and the screening quality and the production capacity are improved. The rotor cover plate is connected with the top of the cone cylinder through bolts, a closed area is formed inside the rotor, and slurry is prevented from being deposited to form a slurry cake.
By providing a rotor cone and a third cavity having an inverted cone shape, slurry is first supplied from a tapered flow path which is gradually narrowed, and then discharged from a tapered flow path which is gradually opened. As a result, the slurry is supplied uniformly and low to any portion of the screen frame, and the slurry receives the same passage resistance at any portion. In addition, the inlet of the screen cylinder is provided with an overflow structure, namely, the upper surface of the conical cylinder body is higher than the lower surface of the pulp inlet pipe, so that the pulp uniformly flows in from the whole circumference direction of the screen cylinder, and meanwhile, the pulp passing through the screen cylinder is gathered to the third cavity from the whole circumference and flows out through the pulp outlet pipe. The slurry failing to pass the screening at the inlet side moves along the screen cylinder toward the reject pipe, and as the impurities in the slurry gradually accumulate, the slurry concentration becomes large. This condition tends to promote wear of the surface of the screen cylinder. However, since the slurry flows in a tapered flow path which gradually narrows, the slurry is rapidly discharged from the side of the slag discharge pipe, and abrasion of the screen cylinder is reduced.
Drawings
FIG. 1 is a front cross-sectional view of an outflow type low pulse screen forward flow pressure screen;
FIG. 2 is a perspective view of a rotor;
FIG. 3 is a front view of the rotor;
FIG. 4 is a top view of the rotor;
FIG. 5 is a cross-sectional view of the rotor;
FIG. 6 is a schematic structural diagram of the slag discharging pipe and the slurry discharging pipe;
FIG. 7 is a schematic structural view of the housing;
reference numerals illustrate: 1. upper cover, 101, head, 102, upper cover flange, 103, exhaust pipe, 2, shell, 201, cylindrical barrel, 202, conical barrel, 203, inner barrel, 204, middle ring, 205, inclined plate, 206, upper shell flange, 207, middle shell flange, 208, lower shell flange, 3, screen cylinder, 4, rotor, 401, rotor blade, 4011, plane, 4012, first arc surface 4013, second arc surface, 4014, third arc surface, 402, rotor blade strut, 403, rotor cone, 404, support plate, 405, rotor sleeve, 406, rotor cover plate, 407, reinforcing rib, 408, exhaust hole, 5, bottom plate, 6, transmission shaft, 7, base, 8, transmission shaft driving mechanism, 801, motor, 802, motor frame, 803, small pulley, 804, triangle belt, 805, big pulley, 9, slurry inlet pipe, 10, slurry outlet pipe, 11, slag discharge pipe.
Detailed Description
An outflow low pulse pre-net flow pressure screen according to the present invention is described in detail below with reference to figures 1 to 7 of the accompanying drawings.
The invention relates to an outflow type low-pulse-net front-flow pressure screen, which structurally comprises an upper cover 1, a shell 2, a screen cylinder 3, a rotor 4, a bottom plate 5, a transmission shaft 6, a base 7 and a transmission shaft driving mechanism 8, wherein the upper cover 1 is arranged at the upper part of the shell 2, the bottom plate 5 is arranged at the lower part of the shell 2, the rotor 4, the screen cylinder 3 and the transmission shaft 6 are respectively arranged in the shell 2, the screen cylinder 3 is positioned at the outer side of the rotor 4, the transmission shaft 6 is arranged at the lower part of the rotor 4, the bottom plate 5 is arranged at the upper part of the base 7, the transmission shaft driving mechanism 8 is arranged on the base 7 and connected with the transmission shaft 6, the shell 2 is provided with a pulp inlet pipe 9, a pulp outlet pipe 10 and a slag outlet pipe 11, the pulp outlet pipe 10 is arranged at the lower part of the shell 2 at the lower part of the rotor 4, and the pulp outlet pipe 10 is arranged at the bottom far from a screening area, so that the influence of pulse pulp outlet generated by the rotor 4 can be reduced; rotor 4 include rotor blade 401, rotor blade branch 402, rotor cone 403, backup pad 404, rotor cover 405 and rotor apron 406, backup pad 404 be located rotor cover 405's outside, the outside of backup pad 404 is provided with rotor cone 403, the outside welding of rotor cone 403 has a plurality of rotor blade branches 402, install a rotor blade 401 on every rotor blade branch 402 respectively, the rotatory external diameter that a plurality of rotor blades 401 formed is coaxial with rotor cover 405 hole, rotor blade 401 adopts the low pulse design, the pulse is little, the effect is soft, rotor apron 406 set up at rotor cone 403's top, form a confined area with rotor 4 inside, avoid thick liquids deposit formation thick liquid cake here, rotor cover 405 link to each other with transmission shaft 6. The rotor cone 403 adopts a cone structure, which is beneficial to accelerating the slag discharging speed of the bottom area of the rotor 4, and simultaneously keeps the pressure balance of the screen cylinder 3 from top to bottom, and improves the screening quality and the production capacity.
Rotor blade 401 include plane 4011, first arc surface 4012, second arc surface 4013 and third arc surface 4014, plane 4011 set up inboard, first arc surface 4012, second arc surface 4013 and third arc surface 4014 set up in the outside, the both ends of plane 4011 link to each other with first arc surface 4012 and third arc surface 4014 respectively, be provided with second arc surface 4013 between first arc surface 4012 and the third arc surface 4014. The front side of the rotary wing piece 401 adopts a small arc of a first arc surface 4012, and a second arc surface 4013 and a third arc surface 4014 are tangentially connected together by adopting two larger arcs.
The rotor blade struts 402 are cylindrical in configuration. Avoiding tangling of the mass in the slurry on rotor blade struts 402.
The upper part of the supporting plate 404 is provided with a reinforcing rib 407, and the reinforcing rib 407 is respectively connected with the rotor cone 403 and the rotor sleeve 405.
The rotor cone 403 at the lower part of the support plate 404 is provided with a plurality of circular exhaust holes 408. For exhausting air and light impurities from the bottom of the rotor 4.
The shell 2 include cylinder 201, toper barrel 202, inner tube 203, well ring 204, hang plate 205, shell flange 206, flange 207 and shell lower flange 208 in the casing, toper barrel 202 set up in cylinder 201, its bottom links to each other with the cylinder 201 inner wall above the play thick liquid pipe 10, toper barrel 202 and cylinder barrel 201 between be provided with well ring 204, the lower part of toper barrel 202 and bottom plate 5 between be provided with inner tube 203, be provided with hang plate 205 between the periphery of inner tube 203 and cylinder barrel 201, shell flange 206 set up in the upper portion of cylinder barrel 201, cylinder barrel 201 links to each other with upper cover 1 through shell flange 206, shell flange 207 set up in the upper portion of toper barrel 202, cone barrel 202 links to each other with screen cylinder 3 top through flange 207 in the shell, shell lower flange 208 set up in the upper portion of inner tube 203, inner tube 203 links to each other with screen cylinder 3 bottom through shell lower flange 208, sediment pipe 11 be linked to each other with inner tube 203.
The upper surface of the conical cylinder 202 is higher than the lower surface of the pulp inlet pipe 9.
The transmission shaft driving mechanism 8 comprises a motor 801, a motor frame 802, a small belt pulley 803, a triangular belt 804 and a large belt pulley 805, wherein the motor 801 is arranged on the motor frame 802, the motor frame 802 is arranged on the base 7, the small belt pulley 803 is arranged on a motor 801 shaft of the motor 801, the small belt pulley 803 is connected with the large belt pulley 805 through the triangular belt 804, and the large belt pulley 805 is arranged on the transmission shaft 6.
The upper cover 1 is composed of an elliptical sealing head 101 and an upper cover flange 102, wherein the upper cover flange 102 is welded on the outer side of the sealing head 101, and a concentric exhaust pipe 103 is arranged in the center of the elliptical sealing head 101 and used for exhausting air in the equipment. The upper cover flange 102 is provided with a plurality of small holes for connection with the housing 2.
The upper part of the shell 2 is provided with a first cavity formed by a shell upper flange 206, a middle ring 204, a cylindrical barrel 201 and a conical barrel 202, wherein a slurry inlet pipe 9 is arranged on the first cavity, and slurry enters the screen body. The in-housing flange 207, the under-housing flange 208 and the inside of the screen cylinder 3 together form a second chamber, which is the screening area of the pulp. The lower flange 208 of the shell, the inner cylinder 203, the inclined plate 205, the conical cylinder 202 and the outer side of the screen cylinder 3 together form a third cavity, the bottom of the conical cylinder 202 is welded on the inner side of the cylindrical cylinder 201 and forms an annular opening with the lower flange 208 of the shell, the bottom of the third cavity is provided with a pulp outlet pipe 10 on the cylindrical cylinder 201, and pulp is screened, and the pulp passing through the screen cylinder 3 enters the next flow path. The lower flange 208 of the housing, the bottom plate 5 and the inner cylinder 203 form a fourth cavity, and the fourth cavity is provided with a slag discharging pipe 11 for discharging the screened tail pulp, and the tail pulp enters the next section of screening equipment.
The rotor blade 401 of the rotor 4 can keep good cleaning effect at a lower speed, the slurry pulse is low, the net surfing ration is stable, and the rotor blade 401 can be used when a paper machine runs at a high speed. Compared with the cantilever type rotor 4 adopted by the existing inner flow pressure screen, the rotor 4 has high strength and reliable operation.
The screen cylinder 3 adopts a bar type screen cylinder 3, and the screen cylinder 3 manufactured by bars has high aperture ratio and high strength. The production capacity of the pressure screen can be effectively improved.
The base 7 is of an integral structure bent by a steel plate, and the structure has the advantages of less welding amount, simple manufacture and processing, high strength, raw material saving and attractive appearance.
The motor frame 802 is made by bending steel plates, is mounted on the upper surface of the base 7 together with the shell 2, and the motor 801 is vertically fixed on a vertical plate of the motor frame 802, so that the motor frame 802 is universal for the motor 801 with similar specifications through bolt holes on the motor frame 802.
Working principle:
the slurry enters the first cavity through the slurry inlet pipe 9 and uniformly flows into the screening area from the circumferential direction. The rotor blades 401 of the rotor 4 are rotated to generate positive pressure pulses and negative pressure pulses on the surface of the screen cylinder 3, and the qualified fibers in the slurry flow out of the discharge pipe 10 through the slots or holes of the screen cylinder 3 in cooperation with the pressure effect generated by pumping the slurry. No fibers and impurities adhering to the surface of the screen cylinder 3 are cleaned by the negative pressure pulse generated by the rotor blade 401. The slurry which cannot pass through the screening enters the fourth cavity, is discharged through the slag discharging pipe 11 and is delivered to the next-stage equipment for treatment.
By providing the rotor cone 403 having a tapered shape and the third cavity having an inverted tapered shape, slurry is first supplied from the tapered flow path having a gradually narrowed shape, and then discharged from the tapered flow path having a gradually opened shape. As a result, the slurry is supplied uniformly and low to any portion of the screen frame, and the slurry receives the same passage resistance at any portion. In addition, the inlet of the screen cylinder 3 is provided with an overflow structure, that is, the upper surface of the conical cylinder 202 is higher than the lower surface of the pulp inlet pipe 9, so that pulp uniformly flows in from the whole circumference of the screen cylinder 3, and at the same time, pulp passing through the screen cylinder 3 is gathered from the whole circumference into the third cavity and flows out through the pulp outlet pipe 10. The slurry that fails to pass the screening at the inlet side moves along the screen cylinder 3 toward the reject pipe 11, and as the impurities in the slurry gradually accumulate, the slurry concentration becomes large. This condition tends to promote wear of the surface of the screen cylinder 3. However, since the slurry flows through the tapered flow path which gradually narrows, the slurry is rapidly discharged from the slag discharge pipe 11 side, and abrasion of the screen cylinder 3 is reduced.
The above-mentioned embodiments are only for understanding the present invention, and are not intended to limit the technical solutions described in the present invention, and a person skilled in the relevant art may make various changes or modifications based on the technical solutions described in the claims, and all equivalent changes or modifications are intended to be included in the scope of the claims of the present invention. The present invention is not described in detail in the present application, and is well known to those skilled in the art.
Claims (7)
1. The utility model provides a low pulse of outflow formula net front flow pressure sieve, includes upper cover, casing, screen cylinder, rotor, bottom plate, transmission shaft, base and transmission shaft actuating mechanism, the upper cover set up in the upper portion of casing, the bottom plate sets up in the lower part of casing, rotor, screen cylinder and transmission shaft set up respectively in the casing, the screen cylinder is located the rotor outside, the transmission shaft is located the rotor lower part, the bottom plate is located base upper portion, transmission shaft actuating mechanism be located the base and link to each other with the transmission shaft, the casing on be provided with into thick liquid pipe, play thick liquid pipe and scum pipe, advance thick liquid pipe setting in the upper portion of casing, the scum pipe sets up in the lower part of casing, characterized by: the slurry outlet pipe is positioned on a shell at the lower part of the rotor, the rotor comprises a rotor blade, rotor blade supporting rods, a rotor cone, a supporting plate, a rotor sleeve and a rotor cover plate, the supporting plate is positioned at the outer side of the rotor sleeve, the rotor cone is arranged at the outer side of the supporting plate, a plurality of rotor blade supporting rods are arranged at the outer side of the rotor cone, each rotor blade supporting rod is respectively provided with a rotor blade, the rotating outer diameter formed by the rotor blades is coaxial with an inner hole of the rotor sleeve, the rotor cover plate is arranged at the top of the rotor cone, and the rotor sleeve is connected with a transmission shaft;
the shell comprises a cylindrical barrel, a conical barrel, an inner barrel, a middle ring, an inclined plate, an upper shell flange, a middle shell flange and a lower shell flange, wherein the conical barrel is arranged in the cylindrical barrel, the bottom of the conical barrel is connected with the inner wall of the cylindrical barrel above the pulp outlet pipe, the middle ring is arranged between the conical barrel and the cylindrical barrel, the inner barrel is arranged between the lower part of the conical barrel and the bottom plate, the inclined plate is arranged between the periphery of the inner barrel and the cylindrical barrel, the upper shell flange is arranged at the upper part of the cylindrical barrel, the cylindrical barrel is connected with the upper cover through the upper shell flange, the middle shell flange is arranged at the upper part of the conical barrel, the conical barrel is connected with the top of the screen cylinder through the middle shell flange, the lower shell flange is arranged at the upper part of the inner barrel, the pulp outlet pipe is connected with the bottom of the screen cylinder through the lower shell flange, and the pulp outlet pipe is communicated with the inner barrel;
the rotor blade include plane, first arc surface, second arc surface and third arc surface, the plane set up in the inboard, first arc surface, second arc surface and third arc surface set up in the outside, planar both ends link to each other with first arc surface and third arc surface respectively, be provided with the second arc surface between first arc surface and the third arc surface.
2. An outflow low pulse pre-net flow pressure screen as claimed in claim 1, wherein: the rotor blade supporting rod is of a cylindrical structure.
3. An outflow low pulse pre-net flow pressure screen as claimed in claim 1, wherein: the upper part of the supporting plate is provided with a reinforcing rib which is respectively connected with the rotor cone and the rotor sleeve.
4. An outflow low pulse pre-net flow pressure screen as claimed in claim 1, wherein: the rotor cone at the lower part of the supporting plate is provided with a plurality of circular exhaust holes.
5. An outflow low pulse pre-net flow pressure screen as claimed in claim 1, wherein: the upper surface of the conical cylinder body is higher than the lower surface of the slurry inlet pipe.
6. An outflow low pulse pre-net flow pressure screen as claimed in claim 1, wherein: the transmission shaft driving mechanism comprises a motor, a motor frame, a small belt wheel, a triangular belt and a large belt wheel, wherein the motor is arranged on the motor frame, the motor frame is arranged on a base, the small belt wheel is arranged on a motor shaft of the motor and connected with the large belt wheel through the triangular belt, and the large belt wheel is arranged on the transmission shaft.
7. An outflow low pulse pre-net flow pressure screen as claimed in claim 1, wherein: the upper cover consists of an elliptical end socket and an upper cover flange, wherein the upper cover flange is arranged at the outer side of the end socket, and a concentric exhaust pipe is arranged at the center of the elliptical end socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810539712.9A CN108468245B (en) | 2018-05-30 | 2018-05-30 | Outflow type low-pulse net front-flowing pressure screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810539712.9A CN108468245B (en) | 2018-05-30 | 2018-05-30 | Outflow type low-pulse net front-flowing pressure screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108468245A CN108468245A (en) | 2018-08-31 |
| CN108468245B true CN108468245B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810539712.9A Active CN108468245B (en) | 2018-05-30 | 2018-05-30 | Outflow type low-pulse net front-flowing pressure screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364274B (en) * | 2020-04-30 | 2022-04-01 | 郑州磊展科技造纸机械有限公司 | Novel pressure screen |
| CN111424458B (en) * | 2020-04-30 | 2022-03-22 | 郑州磊展科技造纸机械有限公司 | Pressure screen rotor using airfoil-shaped rotary wing panel and pressure screen |
| CN111962323A (en) * | 2020-08-10 | 2020-11-20 | 玖龙纸业(天津)有限公司 | Improve pressure screen of thick liquids screening quality |
| CN116427202B (en) * | 2023-05-26 | 2025-07-18 | 山东杰锋机械制造有限公司 | Pulp high efficiency impurity removal rotor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4287055A (en) * | 1978-07-11 | 1981-09-01 | Firma Hermann Finckh Maschinenfabrik Gmbh & Co. | Method of sorting fibre suspensions as well as a pressure sorter for performing the method |
| CN2649631Y (en) * | 2003-10-17 | 2004-10-20 | 济宁华一轻工机械有限公司 | Internal-flow head screen |
| CN2869093Y (en) * | 2005-12-23 | 2007-02-14 | 冯爱民 | Low pulse head screen |
| CN201817741U (en) * | 2010-10-12 | 2011-05-04 | 山东杰锋机械制造有限公司 | Up-flow coarse pressure sieve rotor |
| CN202055086U (en) * | 2010-12-30 | 2011-11-30 | 烟台华日造纸机械有限公司 | Tailing screen used in pulping and papermaking process |
| WO2012084562A1 (en) * | 2010-12-22 | 2012-06-28 | Voith Patent Gmbh | Pressure screen |
| CN103547733A (en) * | 2011-05-26 | 2014-01-29 | 沃依特专利有限责任公司 | Fibre sorting system |
| CN103643581A (en) * | 2013-12-31 | 2014-03-19 | 山东晨钟机械股份有限公司 | Fine screen |
| CN105256638A (en) * | 2015-11-20 | 2016-01-20 | 山东杰锋机械制造有限公司 | Efficient screening device for paper pulp suspension liquid |
| CN208250814U (en) * | 2018-05-30 | 2018-12-18 | 山东杰锋机械制造有限公司 | Pressurized screen is streamed before a kind of low pulse mesh of outer-flowing type |
-
2018
- 2018-05-30 CN CN201810539712.9A patent/CN108468245B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4287055A (en) * | 1978-07-11 | 1981-09-01 | Firma Hermann Finckh Maschinenfabrik Gmbh & Co. | Method of sorting fibre suspensions as well as a pressure sorter for performing the method |
| CN2649631Y (en) * | 2003-10-17 | 2004-10-20 | 济宁华一轻工机械有限公司 | Internal-flow head screen |
| CN2869093Y (en) * | 2005-12-23 | 2007-02-14 | 冯爱民 | Low pulse head screen |
| CN201817741U (en) * | 2010-10-12 | 2011-05-04 | 山东杰锋机械制造有限公司 | Up-flow coarse pressure sieve rotor |
| WO2012084562A1 (en) * | 2010-12-22 | 2012-06-28 | Voith Patent Gmbh | Pressure screen |
| CN202055086U (en) * | 2010-12-30 | 2011-11-30 | 烟台华日造纸机械有限公司 | Tailing screen used in pulping and papermaking process |
| CN103547733A (en) * | 2011-05-26 | 2014-01-29 | 沃依特专利有限责任公司 | Fibre sorting system |
| CN103643581A (en) * | 2013-12-31 | 2014-03-19 | 山东晨钟机械股份有限公司 | Fine screen |
| CN105256638A (en) * | 2015-11-20 | 2016-01-20 | 山东杰锋机械制造有限公司 | Efficient screening device for paper pulp suspension liquid |
| CN208250814U (en) * | 2018-05-30 | 2018-12-18 | 山东杰锋机械制造有限公司 | Pressurized screen is streamed before a kind of low pulse mesh of outer-flowing type |
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