CN108166301B - Multifunctional pressure screen rotor structure - Google Patents
Multifunctional pressure screen rotor structure Download PDFInfo
- Publication number
- CN108166301B CN108166301B CN201711432442.3A CN201711432442A CN108166301B CN 108166301 B CN108166301 B CN 108166301B CN 201711432442 A CN201711432442 A CN 201711432442A CN 108166301 B CN108166301 B CN 108166301B
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- rotor
- cylinder
- annular plate
- screening
- blocks
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- 238000012216 screening Methods 0.000 claims abstract description 56
- 238000005406 washing Methods 0.000 claims abstract description 46
- 239000002893 slag Substances 0.000 claims abstract description 31
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 238000005192 partition Methods 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 230000000694 effects Effects 0.000 description 11
- 239000000835 fiber Substances 0.000 description 10
- 239000012535 impurity Substances 0.000 description 9
- 239000002002 slurry Substances 0.000 description 9
- 230000000903 blocking effect Effects 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 229920001131 Pulp (paper) Polymers 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004091 panning Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 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
-
- 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
- D21D5/16—Cylinders and plates for screens
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Means For Separation Of Solids (AREA)
- Paper (AREA)
Abstract
The invention discloses a multifunctional pressure screen rotor structure, which comprises a cylindrical rotor barrel, wherein a connecting sleeve for connecting with a rotating shaft is arranged at the rotating axis of the rotor barrel, a double-layer partition plate is arranged between the connecting sleeve and the rotor barrel, the double-layer partition plate consists of an upper-layer annular plate and a lower-layer annular plate which are axially arranged at intervals, and a washing chamber is formed between the upper-layer annular plate and the lower-layer annular plate and between the connecting sleeve and the rotor barrel; the side wall of the rotor cylinder corresponding to the washing chamber is provided with a washing hole; the rotor cylinder is positioned at the lower side of the washing chamber and is coaxially provided with a sealing cylinder, the sealing cylinder is positioned in the rotor cylinder and a gap is reserved between the sealing cylinder and the rotor cylinder, and a light slag conveying area is formed at the gap; the lower annular plate is provided with a washing hole which is communicated with the inner cavity of the sealing cylinder and the washing chamber; a light slag pipe is arranged in the elutriation chamber along the axial direction in a penetrating way; the outer peripheral surface of the rotor cylinder body is provided with a combined rotor. The invention realizes the functions of light slag removal, self-carrying washing water, energy saving, anti-blocking and high-efficiency screening.
Description
Technical Field
The invention relates to the technical field of screening equipment, in particular to a multifunctional pressure screen rotor structure.
Background
In the current stage, the pressure screen is used as a pulping line of the domestic papermaking industry, the technology of the pressure screen is mature gradually, domestic manufacturers are introduced from the initial technology and gradually transition to technical innovation, and the pressure screen is adjusted more suitable for the domestic papermaking enterprises from various aspects.
The working principle of the pressure screen is that slurry enters an upper separation chamber of the pressure screen in a tangential direction, heavier objects are thrown into a heavy slag pipe under the action of centrifugal force, the deslagged slurry enters a screening area between a screen cylinder and a rotary cylinder, qualified fibers are led out from a good slurry pipe through screen holes (slits), unqualified slurry continues to move downwards, the bottom of the pressure screen is discharged from a slag discharge pipe, dilution water is injected into a dilution water pipe at the symmetrical position of the slag discharge pipe, a plurality of convex rotor blocks are arranged on the surface of a rotor cylinder body rotating at high speed at the inner side of the screen cylinder, and local negative pressure is generated behind each wing block during rotation, so that the effect of purifying the screen holes (slits) is achieved.
The rotor cylinder body is used as a core component of the pressure screen, is a main body of equipment energy consumption, and has decisive effects on improving screening efficiency and reducing energy consumption of the pressure screen. The rotor is required to realize the following three functions according to actual production requirements: turbulence phenomena can occur that allow the flow of pulp through the holes or slits of the screen cylinder; a flow field capable of generating a flow field that passes the fibers but not the impurities; a backwash effect can be created to clean the screen cylinder.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a multifunctional pressure screen rotor structure which realizes the functions of removing light slag, self-carrying washing water, energy saving, blocking prevention and efficient screening.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a multi-functional pressure screen rotor structure, includes the rotor barrel of cylinder, the rotatory axis department of rotor barrel is equipped with the adapter sleeve that is used for with the pivot connection, be equipped with double-deck baffle between adapter sleeve and the rotor barrel, double-deck baffle comprises upper strata annular slab and lower floor annular slab that set up along axial interval, the inner circle of upper strata annular slab and lower floor annular slab all is sealed fixed connection with the adapter sleeve, the outer lane of upper strata annular slab and lower floor annular slab all is sealed fixed connection with the rotor barrel, form the washing room between upper strata annular slab and lower floor annular slab and adapter sleeve and the rotor barrel; the side wall of the rotor cylinder corresponding to the washing chamber is provided with a washing hole;
the rotor cylinder is positioned at the lower side of the washing chamber and is coaxially provided with a sealing cylinder, the sealing cylinder is positioned in the rotor cylinder and a gap is reserved between the sealing cylinder and the rotor cylinder, and a light slag conveying area is formed at the gap;
the lower annular plate is provided with a washing hole which is communicated with the inner cavity of the sealing cylinder and the washing chamber; a light slag pipe is arranged in the elutriation chamber in an axial penetrating way, the lower end of the light slag pipe is communicated with the light slag conveying area, and the upper end of the light slag pipe extends upwards out of the elutriation chamber;
the outer peripheral surface of the rotor cylinder body is provided with a combined rotor.
The upper end of the sealing cylinder is fixedly connected with the lower annular plate in a sealing way, and the lower end of the sealing cylinder extends out of the rotor cylinder body downwards.
The upper annular plate is of a conical structure flaring upwards and outwards.
The combined rotor wing is divided into an up-flow rotor wing area and a screening rotor wing area from bottom to top, the up-flow rotor wing area comprises a plurality of up-flow rotor wing blocks which are obliquely and fixedly arranged along the circumferential direction, one or more layers of up-flow rotor wing blocks are arranged around the rotation axis of the rotor barrel, the bottom of each up-flow rotor wing block is fixedly arranged on the outer surface of the rotor barrel, and an angle is formed between the side surface of each up-flow rotor wing block and the horizontal plane;
the screening rotor zone includes a plurality of screening rotor pieces that set up along circumferencial direction level is fixed, and the screening rotor piece sets up one deck or multilayer around the axis of rotation of rotor barrel.
The shapes of the screening rotor blocks of all layers are different from each other, and the shapes of the screening rotor blocks of all layers are the same.
The upflow rotor block comprises a pressure pulse generating part at the front side and a suction pulse generating part at the rear side, and a plurality of pits are formed on the outer side surface of the pressure pulse generating part.
The angle between the side surface of the upflow rotor wing block and the horizontal plane is 35-90 degrees.
The angle between the side of the upflow rotor block and the horizontal is preferably 45 °.
Each layer of screening rotor blocks or upflow rotor blocks are distributed at equal intervals, and each layer of screening rotor blocks or upflow rotor blocks are distributed in a staggered mode.
The invention has the beneficial effects that:
1. through the technical scheme, the invention realizes the functions of removing light slag, washing water, energy saving, blocking prevention and high-efficiency screening.
2. According to the invention, through the cooperation of the light residue conveying area and the light residue pipe, light impurities in the paper slurry can quickly move upwards through the light residue conveying area, and finally the pressure screen is discharged from the light residue pipe; the structure can effectively prevent light slag from accumulating at the lower part of the rotor and reduce abrasion to the inner wall of the rotor cylinder and the lower annular plate.
And the washing chamber, the washing hole and the washing hole are matched, washing water can enter the washing chamber from the washing hole and spray water outwards through the washing hole on the rotor cylinder body, so that the effect of improving the fiber recovery rate is achieved.
3. The invention starts from the design of the optimized rotor, combines rotor blocks in different forms, and adjusts the arrangement rule of the rotor blocks according to different slurry and the use positions of the pressure screen, thereby enhancing the screening capability of the pressure screen and realizing the purposes of energy saving, blocking prevention and high-efficiency screening. The outer peripheral surface of the rotor cylinder body is divided into the upflow rotor wing area and the screening rotor wing area from bottom to top, and the local upflow effect of paper pulp is improved by changing the combination form of the rotor wing blocks, so that the efficiency of screening qualified fibers in unit volume is improved, and the fiber content in the slag pulp is reduced. Meanwhile, the form strengthens the upflow effect of the bottom of the rotor, and greatly reduces the possibility that pulp forms flocculation at the bottom of the rotor.
The upflow rotor wing area comprises a plurality of upflow rotor wing blocks which are obliquely and fixedly arranged along the circumferential direction, one layer or a plurality of layers of upflow rotor wing blocks are arranged around the rotation axis of the cylinder body, the angle between the side surface of the upflow rotor wing blocks and the horizontal plane is 35-90 degrees, and an included angle of 45 degrees is preferred, and the rotor wing with the structural design can push slurry flow to rise; the upflow rotor block comprises a pressure pulse generating part at the front side and a suction pulse generating part at the rear side, and a plurality of pits are formed in the pressure pulse generating part, so that the pulse can be effectively reduced, and the frequency of the pressure pulse can be reduced.
Wherein, screening rotor district is including a plurality of screening rotor pieces of the fixed setting of circumferencial direction level, and the rotation axis that the rotor piece was revolved to the screening rotor sets up the multilayer, and the shape of rotor piece is selected to each layer is different each other, and the shape of rotor piece is selected to every layer is the same, can strengthen the screening ability of rotor to improve screening efficiency.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the upflow rotor block of the present invention;
FIG. 3 is a schematic view of the structure of the A1 layer screening rotor block of the present invention;
FIG. 4 is a schematic view of the structure of the A2 layer screening rotor block of the present invention;
fig. 5 is a schematic view of the structure of the A3 layer screening rotor block of the present invention.
Detailed Description
As shown in fig. 1 to 5, the multifunctional pressure screen rotor structure comprises a cylindrical rotor cylinder 1, a connecting sleeve 6 for connecting with a rotating shaft is arranged at the rotating axis of the rotor cylinder 1, a double-layer partition plate is arranged between the connecting sleeve 6 and the rotor cylinder 1, the double-layer partition plate consists of an upper annular plate 3 and a lower annular plate 4 which are arranged at intervals along the axial direction, the upper annular plate 3 is of a conical structure which flares upwards and outwards, and the lower annular plate 4 is horizontally arranged. The inner rings of the upper ring plate 3 and the lower ring plate 4 are fixedly connected with the connecting sleeve 6 in a sealing way, the outer rings of the upper ring plate 3 and the lower ring plate 4 are fixedly connected with the rotor cylinder 1 in a sealing way, and a washing chamber is formed between the upper ring plate 3 and the lower ring plate 4 and the connecting sleeve 6 and between the upper ring plate and the lower ring plate 4 and the rotor cylinder 1; the side wall of the rotor cylinder body 1 corresponding to the washing chamber is provided with a washing hole 9. In this embodiment, the upper ring plate 3 is provided with a conical structure flaring upwards and outwards, so that the panning area is enlarged, and the screening effect can be improved to the greatest extent.
The rotor cylinder 1 is located the downside of washing room and is coaxial to be equipped with a seal section of thick bamboo 5, the upper end of seal section of thick bamboo 5 and the sealed fixed connection of lower floor's annular plate 4, the lower extreme of seal section of thick bamboo 5 stretches out rotor cylinder 1 downwards. The sealing cylinder 5 is positioned in the rotor cylinder 1 and a gap is reserved between the sealing cylinder and the rotor cylinder 1, and a light slag conveying area is formed at the gap.
The lower annular plate 4 is provided with a washing hole 10 which is communicated with the inner cavity of the sealing cylinder 5 and the washing chamber; the inside of the washing chamber is provided with a light slag pipe 2 penetrating along the axial direction, the lower end of the light slag pipe 2 is communicated with the light slag conveying area, and the upper end of the light slag pipe 2 extends upwards out of the washing chamber.
The design of the seal cartridge 5 ensures that the wash water enters the chamber to be washed as much as possible from the wash holes 10 in the lower ring plate 4, while light impurities are prevented from entering the water area to be washed.
According to the invention, through the cooperation of the light residue conveying area and the light residue pipe 2, light impurities in the paper slurry can quickly move upwards through the light residue conveying area, and finally the pressure screen is discharged from the light residue pipe 2; the structure can effectively prevent light slag from accumulating at the lower part of the rotor and reduce abrasion to the inner wall of the rotor cylinder and the lower annular plate.
And the washing chamber, the washing hole 9 and the washing hole 10 are matched, washing water can enter the washing chamber from the washing hole 10 and spray water outwards through the washing hole 9 on the rotor barrel 1, thereby achieving the effect of improving the recovery rate of fibers.
The outer peripheral surface of the rotor cylinder 1 is provided with a combined rotor which is divided into an upflow rotor zone and a screening rotor zone from bottom to top, wherein the upflow rotor zone comprises a plurality of upflow rotor blocks 8 which are obliquely and fixedly arranged along the circumferential direction, the bottom of each upflow rotor block 8 is fixedly arranged on the outer surface of the rotor cylinder 1, and an angle alpha is arranged between the side surface of each upflow rotor block 8 and the horizontal plane, and is preferably 45 degrees. In this embodiment, the upflow rotor block 8 is provided in two layers around the axis of rotation of the rotor body.
The upflow rotor block 8 comprises a front pressure pulse generating part and a rear suction pulse generating part, and a plurality of pits 81 are formed on the outer side surface of the pressure pulse generating part, so that the pulse can be effectively reduced, and the frequency of the pressure pulse can be reduced.
The screening rotor district is including a plurality of screening rotor pieces 7 that set up along circumferencial direction level is fixed, and screening rotor piece 7 sets up the three-layer around rotor barrel's rotation axis, is A1 layer, A2 layer and A3 layer respectively, and the shape of each layer screening rotor piece 7 is mutually different, and the shape of every layer screening rotor piece 7 is the same, can strengthen rotor's screening ability to improve screening efficiency.
In this embodiment, each layer of screening rotor blocks 7 or upflow rotor blocks 8 are distributed equidistantly, and each layer of screening rotor blocks 7 or upflow rotor blocks 8 are distributed in a staggered manner.
The three screening rotor blocks in fig. 3 to 5 are in the form of wedge-shaped rotor blocks commonly used for pressure screens, and the upflow rotor block in fig. 2 is a rotor block specially used for upflow screens; through combining two types of rotor blocks, the direction of slurry flow can be changed, and the screening capability of a certain layer of rotor is enhanced, so that the screening efficiency is improved.
As shown in fig. 1, the rotor block is a simple combination mode of two types of rotor blocks, and this mode can enhance the upflow effect of the bottom of the rotor, reduce the possibility of forming flocculation of paper pulp at the bottom of the rotor, prolong the screening time of the paper pulp and improve the screening efficiency.
According to the invention, the rotor wing blocks in different forms are combined at the rotor wing of the rotor, and the arrangement rule of the rotor wing blocks is adjusted according to the use positions of different sizing agents and pressure screens, so that the screening capability of the pressure screens is enhanced, and the purposes of energy saving, blocking prevention and efficient screening are realized.
Specifically to in this embodiment, rotor barrel's outer peripheral face divide into lift rotor district and screening rotor district from bottom to top, through the combined form that changes rotor piece, increases the local lift effect of paper pulp to improve the efficiency of unit volume screening qualified fibre, reduce the fibre content in the sediment thick liquid. Meanwhile, the form strengthens the upflow effect of the bottom of the rotor, and greatly reduces the possibility that pulp forms flocculation at the bottom of the rotor.
The working principle of the invention is as follows:
in the screening process of the pressure equipment, pulp is driven by a rotor to perform rotary motion, qualified fibers enter the next process through a fine pulp pipe through a sieve hole (seam), heavy impurities are directly discharged from a heavy slag pipe orifice, light impurities and the pulp move upwards under the action of the rotor, a part of the light impurities enter a light slag conveying area between a rotor cylinder body 1 and a sealing cylinder 5, at the moment, the light impurities can continue to move upwards through a light slag pipe 2, and finally the light impurities are discharged out of the pressure screen through a light slag pipe 2; the rotor cylinder 1 is provided with a certain number of washing holes 9 through which washing water can wash pulp, so that the recovery rate of fibers is improved, and the surface of the screen cylinder is washed, thereby preventing the screen holes (seams) from being blocked.
Through the technical scheme, the invention realizes the functions of removing light slag, washing water, energy saving, blocking prevention and high-efficiency screening.
The above embodiments are only for illustrating the technical solution of the present invention, and it should be understood by those skilled in the art that although the present invention has been described in detail with reference to the above embodiments: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention, which is intended to be encompassed by the claims.
Claims (9)
1. The utility model provides a multi-functional pressure screen rotor structure, includes the rotor barrel of cylinder, and rotor barrel's rotation axis department is equipped with the adapter sleeve that is used for being connected with the pivot, its characterized in that: a double-layer partition plate is arranged between the connecting sleeve and the rotor cylinder, the double-layer partition plate consists of an upper layer annular plate and a lower layer annular plate which are arranged at intervals along the axial direction, the inner rings of the upper layer annular plate and the lower layer annular plate are fixedly connected with the connecting sleeve in a sealing way, the outer rings of the upper layer annular plate and the lower layer annular plate are fixedly connected with the rotor cylinder in a sealing way, and a washing chamber is formed between the upper layer annular plate and the lower layer annular plate and the connecting sleeve as well as between the upper layer annular plate and the rotor cylinder; the side wall of the rotor cylinder corresponding to the washing chamber is provided with a washing hole;
the rotor cylinder is positioned at the lower side of the washing chamber and is coaxially provided with a sealing cylinder, the sealing cylinder is positioned in the rotor cylinder and a gap is reserved between the sealing cylinder and the rotor cylinder, and a light slag conveying area is formed at the gap;
the lower annular plate is provided with a washing hole which is communicated with the inner cavity of the sealing cylinder and the washing chamber; a light slag pipe is arranged in the elutriation chamber in an axial penetrating way, the lower end of the light slag pipe is communicated with the light slag conveying area, and the upper end of the light slag pipe extends upwards out of the elutriation chamber;
the outer peripheral surface of the rotor cylinder body is provided with a combined rotor.
2. The multi-functional pressure screen rotor structure of claim 1, wherein: the upper end of the sealing cylinder is fixedly connected with the lower annular plate in a sealing way, and the lower end of the sealing cylinder extends out of the rotor cylinder body downwards.
3. The multi-functional pressure screen rotor structure of claim 1 or 2, wherein: the upper annular plate is of a conical structure flaring upwards and outwards.
4. The multi-functional pressure screen rotor structure of claim 1, wherein: the combined rotor wing is divided into an up-flow rotor wing area and a screening rotor wing area from bottom to top, the up-flow rotor wing area comprises a plurality of up-flow rotor wing blocks which are obliquely and fixedly arranged along the circumferential direction, one or more layers of up-flow rotor wing blocks are arranged around the rotation axis of the rotor barrel, the bottom of each up-flow rotor wing block is fixedly arranged on the outer surface of the rotor barrel, and an angle is formed between the side surface of each up-flow rotor wing block and the horizontal plane;
the screening rotor zone includes a plurality of screening rotor pieces that set up along circumferencial direction level is fixed, and the screening rotor piece sets up one deck or multilayer around the axis of rotation of rotor barrel.
5. The multi-functional pressure screen rotor structure of claim 4, wherein: the shapes of the screening rotor blocks of all layers are different from each other, and the shapes of the screening rotor blocks of all layers are the same.
6. The multi-functional pressure screen rotor structure of claim 4, wherein: the upflow rotor block comprises a pressure pulse generating part at the front side and a suction pulse generating part at the rear side, and a plurality of pits are formed on the outer side surface of the pressure pulse generating part.
7. The multi-functional pressure screen rotor structure of claim 4 or 5 or 6, wherein: the angle between the side surface of the upflow rotor wing block and the horizontal plane is 35-90 degrees.
8. The multi-functional pressure screen rotor structure of claim 7, wherein: the angle between the side of the upflow rotor block and the horizontal plane is 45 degrees.
9. The multi-functional pressure screen rotor structure of claim 4 or 5 or 6, wherein: each layer of screening rotor blocks or upflow rotor blocks are distributed at equal intervals, and each layer of screening rotor blocks or upflow rotor blocks are distributed in a staggered mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711432442.3A CN108166301B (en) | 2017-12-26 | 2017-12-26 | Multifunctional pressure screen rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711432442.3A CN108166301B (en) | 2017-12-26 | 2017-12-26 | Multifunctional pressure screen rotor structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108166301A CN108166301A (en) | 2018-06-15 |
| CN108166301B true CN108166301B (en) | 2023-08-18 |
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ID=62520869
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711432442.3A Active CN108166301B (en) | 2017-12-26 | 2017-12-26 | Multifunctional pressure screen rotor structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN108166301B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110373930A (en) * | 2019-08-12 | 2019-10-25 | 山东晨钟机械股份有限公司 | A kind of fine screen rotor and fine screening machine |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1335191C (en) * | 1989-03-22 | 1995-04-11 | Ahlstrom Machinery Oy | Screening method and apparatus for light reject removal |
| CN1853014A (en) * | 2003-09-24 | 2006-10-25 | 差佐纸业股份有限公司 | A thickener for concentration of fibre suspensions |
| CN201109887Y (en) * | 2007-08-08 | 2008-09-03 | 李风宁 | Intermittent Pressure Screening Machine |
| CN101400852A (en) * | 2006-03-17 | 2009-04-01 | 安德里兹私人有限公司 | Arrangement in screening apparatus |
| CN202131532U (en) * | 2011-06-27 | 2012-02-01 | 山东杰锋机械制造有限公司 | Indraft-type pulping pressure screen |
| CN104233895A (en) * | 2014-09-02 | 2014-12-24 | 郑州运达造纸设备有限公司 | Up-flow pressure pulp screen |
| CN208104878U (en) * | 2017-12-26 | 2018-11-16 | 郑州运达造纸设备有限公司 | A kind of multi-functional pressure sieve rotor structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE533736C2 (en) * | 2009-03-19 | 2010-12-21 | Metso Paper Inc | Device, system and method for treating cellulose pulp |
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2017
- 2017-12-26 CN CN201711432442.3A patent/CN108166301B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1335191C (en) * | 1989-03-22 | 1995-04-11 | Ahlstrom Machinery Oy | Screening method and apparatus for light reject removal |
| CN1853014A (en) * | 2003-09-24 | 2006-10-25 | 差佐纸业股份有限公司 | A thickener for concentration of fibre suspensions |
| CN101400852A (en) * | 2006-03-17 | 2009-04-01 | 安德里兹私人有限公司 | Arrangement in screening apparatus |
| CN201109887Y (en) * | 2007-08-08 | 2008-09-03 | 李风宁 | Intermittent Pressure Screening Machine |
| CN202131532U (en) * | 2011-06-27 | 2012-02-01 | 山东杰锋机械制造有限公司 | Indraft-type pulping pressure screen |
| CN104233895A (en) * | 2014-09-02 | 2014-12-24 | 郑州运达造纸设备有限公司 | Up-flow pressure pulp screen |
| CN208104878U (en) * | 2017-12-26 | 2018-11-16 | 郑州运达造纸设备有限公司 | A kind of multi-functional pressure sieve rotor structure |
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| Publication number | Publication date |
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| CN108166301A (en) | 2018-06-15 |
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