CN213727648U

CN213727648U - Novel fiber grading sieve

Info

Publication number: CN213727648U
Application number: CN202022007017.3U
Authority: CN
Inventors: 李洪涛; 闵祥鲁; 匡江波; 王亚军
Original assignee: Shanying Huazhong Paper Co ltd
Current assignee: Shanying Huazhong Paper Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-07-20
Anticipated expiration: 2030-09-14

Abstract

The utility model provides a novel fibre classifying screen, including the barrel, the barrel is including setting up into thick liquid mouth and long fiber export, the short-staple export of setting at the top in the lower part, be provided with the sieve section of thick bamboo with the barrel coaxial line in the barrel, it is rotatory that the sieve section of thick bamboo passes through motor drive, a sieve section of thick bamboo seals cylindrical sieve section of thick bamboo for upper portion, and short-staple pipeline and sieve section of thick bamboo top intercommunication are passed through in the short-staple export, still be provided with the brush roller parallel with sieve section of thick bamboo axis direction in the barrel, brush roller and the contact of sieve section of thick bamboo outer wall. The utility model provides a novel fiber grading sieve with good long and short fiber separation effect, difficult blockage of a screen cylinder, good long and short fiber collection effect and long service life.

Description

Novel fiber grading sieve

Technical Field

The utility model relates to a clean papermaking technical field, concretely relates to novel fiber classifying screen.

Background

The fiber grading sieve is a new generation of screening equipment for pulp fiber grading, which is developed on the basis of absorbing foreign advanced technologies and combining domestic production practices. The method is mainly applied to separating long and short fibers of the pulp in the pulping process so as to respectively treat the long and short fibers of the pulp in the production process. In the production process of paper industry, long fibers usually pass through a low-concentration slag remover → a coarse screen → a thermal dispersion system → pulping → paper making, and short fibers usually enter the low-concentration slag remover directly and then are subjected to paper making. However, in the screen cylinder in the prior art, long fibers are usually screened on the screen cylinder and then separated from the screen cylinder or the screen mesh only by the attraction of water flow, the separation effect is poor, and the long fibers are accumulated on the screen cylinder for a long time, so that the screen mesh is easily blocked, and the service life of equipment is influenced.

Therefore, a novel fiber grading sieve with good long and short fiber separation effect, difficult blockage of the screen cylinder, good long and short fiber collection effect and long service life needs to be developed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel fiber grading sieve that length fibre separation effect is good, be difficult for blockking up screen cylinder, length fibre collection effect is good, long service life.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a novel fiber classification sieve, includes the barrel, the barrel including set up at the entering thick liquid mouth of lower part and long fiber export, the short-staple export of setting at the top, be provided with the sieve section of thick bamboo with the barrel coaxial line in the barrel, it is rotatory that a sieve section of thick bamboo passes through a motor drive, a sieve section of thick bamboo seals a cylindrical sieve section of thick bamboo for upper portion, short-staple export is through short-staple pipeline and sieve section of thick bamboo top intercommunication, still be provided with the brush roller parallel with sieve section of thick bamboo axis direction in the barrel, the contact of brush roller and sieve section of thick bamboo outer wall.

Through adopting above-mentioned technical scheme, in the thick liquids by the mode of taking pressure get into the barrel of classifying screen by tangential direction, form the liquid flow direction of ascending vortex, length in the liquid, the short-staple contacts with a sieve section of thick bamboo along with the liquid flow direction of having pressure, the long-staple is blockked outside a sieve section of thick bamboo gap, constantly rise, from the long fiber export ejection of compact at barrel top, the short-staple passes through in the gap gets into a sieve section of thick bamboo, also along with the liquid level rises from the short-staple export ejection of compact at a sieve section of thick bamboo top, form length, short-staple separation ejection of compact, sieve section of thick bamboo one side is provided with the brush roller, the separation can be scrubbed with the long-staple that adheres on a sieve section of thick bamboo to the brush roller, realize the clean regeneration in a sieve section of thick bamboo gap, realize sieve section of thick bamboo continuation separation and use, the life of extension equipment.

As the utility model discloses a further setting, a motor setting is in the inboard bottom of barrel, a motor upper end and rotor fixed connection, rotor and a sieve section of thick bamboo inner wall fixed connection, sieve section of thick bamboo top is rotated with the barrel inner wall and is connected, the through-hole has been seted up on the sieve section of thick bamboo, short-staple pipeline passes through-hole and a sieve section of thick bamboo intercommunication.

Through adopting above-mentioned technical scheme, this kind of connected mode can improve a rotatory stability of sieve section of thick bamboo to adopt inside motor one can improve the overall stability of device.

As the utility model discloses a further setting, the brush roller passes through two drive rotations of motor, two settings of motor are on the surface at barrel top, the dwang of brush roller stretches out the working end fixed connection of barrel and motor two.

Through adopting above-mentioned technical scheme, the work efficiency that the brush roller adopted two motors to drive the rotation and can improve and scrub to the rotation efficiency requirement that the brush roller compares a sieve section of thick bamboo is higher, adopts the mode of outside two motors to be more favorable to the motor heat dissipation, improves the life's of device availability factor.

As a further setting of the utility model, the axis of the pulp inlet is tangent with the edge cylinder.

Through adopting above-mentioned technical scheme, in the thick liquids mixed liquid gets into the barrel of classifying screen by tangential direction by the mode of taking pressure, form the liquid flow direction of upward vortex, the centrifugal force of vortex enables the thick liquids and carries out the effect that is close to each other for a sieve section of thick bamboo, strikes a sieve section of thick bamboo, improves the area of contact of thick liquids, improves thick liquids contact exchange rate, improves follow-up separation effect.

As a further setting of the utility model, the screen cylinder rotates towards the direction of the pulp inlet.

Through adopting above-mentioned technical scheme, the direction of rotation of a sieve section of thick bamboo is opposite with the direction that thick liquid got into the barrel from advancing the thick liquid mouth, and a sieve section of thick bamboo direction of rotation can further improve a sieve section of thick bamboo and thick liquids interact power with the mode that the feeding revolves to opposite, improves the separation effect of long and short fibre.

As a further arrangement of the utility model, the rotation direction of the brush roller is opposite to that of the screen cylinder.

Through adopting above-mentioned technical scheme, the direction of rotation of brush roller is opposite with the direction of rotation of a sieve section of thick bamboo, effectively improves the scrubbing effort of brush roller, effectively improves the separation effect of long fiber and a sieve section of thick bamboo, and the long fiber under the brush upwards floats along with the thick liquid flow direction, at last in the top ejection of compact, when realizing long fiber separation with the recycle as much as possible of long fiber, improvement long and short fiber collection effect.

As the utility model discloses a further setting, the outer wall of a sieve section of thick bamboo evenly is provided with a plurality of spoiler along circumference, spoiler side is towards sieve section of thick bamboo outer wall.

Through adopting above-mentioned technical scheme, the inclined plane of spoiler is towards a sieve section of thick bamboo outer wall, and a sieve section of thick bamboo is when rotatory, and the effect of paddle can be similar to on the inclined plane of spoiler, dials into a sieve section of thick bamboo surface with near thick liquid of a sieve section of thick bamboo, further improves the effort of thick liquid and a sieve section of thick bamboo, improves long and short fibrous screening degree, effectively improves long and short fibrous separation effect.

As a further arrangement of the utility model, the turbulence blocks are arranged with 1-3 strips along the circumferential direction of the screen cylinder.

Through adopting above-mentioned technical scheme, enable a sieve section of thick bamboo and receive the effort of vortex piece along axial direction uniformly, improve the homogeneity of vortex piece effect, further improve the separation effect.

As a further setting of the utility model, the long fiber outlet and the short fiber outlet are positioned on the same plane.

By adopting the technical scheme, the long fiber outlet and the short fiber outlet are positioned on the same plane, so that the occupied space of the equipment can be effectively saved.

As the utility model discloses a further setting, the inboard bottom of barrel is provided with holds the cinder notch, it stretches out the barrel outside through arranging the sediment pipeline to hold the cinder notch, row's cinder pipeline exit department is provided with the baffle, and the baffle passes through bolt and nut fixed connection with the pipeline.

Through adopting above-mentioned technical scheme, the thick liquid is under the effect of centrifugal force, and heavier impurity is down direct to get into along the inner wall of barrel and is held rethread row sediment pipeline intermittent type nature row sediment in the sediment groove, and heavy impurity does not get into the screening region, can effectively prolong the life of a sieve section of thick bamboo, effective improve equipment's life.

The beneficial effect of this scheme:

1. the utility model discloses a novel fiber classifying screen is in the thick liquids are mixed the barrel that the liquid got into the classifying screen by tangential direction by the mode of taking pressure, form the liquid flow direction of ascending vortex, length in the liquid, the short-staple contacts with a sieve section of thick bamboo along with the liquid flow direction of having pressure, the long-staple is blockked outside sieve section of thick bamboo gap, constantly rise, from the long-staple export ejection of compact at barrel top, the short-staple passes through in the gap gets into a sieve section of thick bamboo, also along with the liquid level rises from the short-staple export ejection of compact at sieve section of thick bamboo top, form length, the short-staple separation ejection of compact, can further improve sieve section of thick bamboo and thick liquids interact power through sieve section of thick bamboo direction of rotation and feeding soon to opposite mode, improve the fibrous separation effect of length.

2. The utility model discloses a novel sieve section of thick bamboo one side of fibre classifying screen is provided with the brush roller, the separation can be scrubbed with the long fiber that adheres on a sieve section of thick bamboo to the brush on the brush roller, realize the clean regeneration in sieve section of thick bamboo gap, realize sieve section of thick bamboo continuation discrete use, the life of extension equipment, and the direction of rotation of brush roller is opposite with the direction of rotation of a sieve section of thick bamboo, effectively improve the scrubbing effort of brush roller, effectively improve the separation effect of long fiber and a sieve section of thick bamboo, long fiber under the brush upwards floats along with the thick liquid flow direction, at last at the top ejection of compact, with the recycle as much as possible of long fiber when realizing the long fiber separation, improve long and short fiber collection effect.

3. The utility model discloses a novel fibre classifying screen is provided with the turbulence piece on the sieve section of thick bamboo outer wall, the inclined plane of turbulence piece is towards a sieve section of thick bamboo outer wall, and a sieve section of thick bamboo is when rotatory, and the effect of paddle can be similar to on the inclined plane of turbulence piece, dials into a sieve section of thick bamboo surface with near the thick liquid of a sieve section of thick bamboo, further improves the effort of thick liquid and a sieve section of thick bamboo, improves long and short fibrous screening degree, effectively improves long and short fibrous separation effect.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a first schematic structural view of the fiber classifying screen of the present invention;

FIG. 2 is a schematic structural view II of the fiber classifying screen of the present invention;

FIG. 3 is a schematic top view of the fiber sizing screen of the present invention;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic cross-sectional view taken along line B-B of FIG. 3;

fig. 6 is a schematic cross-sectional view taken at C-C in fig. 3.

In the figure, the device comprises a cylinder body 1, a cylinder body 2, a pulp inlet 3, a long fiber outlet 4, a short fiber outlet 5, a screen cylinder 6, a motor I, a motor II, a brush roller 8, a rotor 9, a through hole 10, a through hole 11, a motor II, a turbulence block 12, a slag containing groove 14, a slag discharging pipeline 15 and a baffle plate.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides a novel fiber grading sieve, which comprises a cylinder body 1, wherein the cylinder body 1 comprises a pulp inlet 2 arranged at the lower part, a long fiber outlet 3 and a short fiber outlet 4 arranged at the top part, the axis of the pulp inlet 2 is tangent to the cylinder body 1, a screen drum 5 coaxial with the drum body 1 is arranged in the drum body 1, the screen drum 5 is driven to rotate by a motor I6, the screen drum 5 is a cylindrical screen drum with a closed upper part, the short fiber outlet 4 is communicated with the top of the screen drum 5 through a short fiber pipeline 7, the inside of the cylinder body 1 is also provided with a brush roller 8 parallel to the axial direction of the screen cylinder 5, the brush roller 8 is contacted with the outer wall of the screen cylinder 5, the brush roller 8 is driven to rotate by a second motor 11, the second motor 11 is arranged on the outer surface of the top of the barrel 1, and the rotating rod of the brush roller 8 extends out of the barrel 1 and is fixedly connected with the working end of the second motor 11.

Referring to fig. 4-6, a motor one 6 is arranged at the bottom of the inner side of the cylinder 1, the upper end of the motor one 6 is fixedly connected with a rotor 9, the rotor 9 is fixedly connected with the inner wall of the screen cylinder 5, the top of the screen cylinder 5 is rotatably connected with the inner wall of the cylinder 1, a through hole 10 is formed in the screen cylinder 5, and the short fiber pipeline 7 penetrates through the through hole 10 and is communicated with the screen cylinder 5. The specific screen cylinder 5 rotates towards the pulp inlet 2, and the rotation direction of the brush roller 8 is opposite to that of the screen cylinder 5.

Specifically, a plurality of turbulence blocks 12 are evenly arranged on the outer wall of the screen cylinder 5 along the circumferential direction, the side faces of the turbulence blocks 12 face the outer wall of the screen cylinder 5, and 1-3 turbulence blocks are arranged on the turbulence blocks 12 along the circumferential direction of the screen cylinder 5.

Specifically, the long fiber outlet 3 and the short fiber outlet 4 are located on the same plane.

Specifically, the bottom of the inner side of the barrel body 1 is provided with a slag containing groove 13, the slag containing groove 13 extends out of the barrel body 1 through a slag discharge pipeline 14, a baffle plate 15 is arranged at the outlet of the slag discharge pipeline 14, and the baffle plate 15 is fixedly connected with the pipeline through bolts and nuts.

The working principle is as follows: when slurry mixed liquid enters the cylinder body 1 of the classifying screen from the tangential direction in a pressurized mode, an upward vortex liquid flow direction is formed, the short fibers in the liquid contact the screen cylinder 5 along with the pressurized liquid flow direction, the long fibers are blocked outside the gap of the screen cylinder 5 and continuously rise, the long fibers are discharged from the long fiber outlet 3 at the top of the cylinder body 1, the short fibers enter the screen cylinder 5 through the gap, the short fibers are discharged from the short fiber outlet 4 at the top of the screen cylinder 5 along with the rise of the liquid level, the long fibers and the short fibers are separated and discharged, a brush roller 8 is arranged on one side of the screen cylinder 5, long fibers adhered to the screen cylinder 5 can be scrubbed and separated by a brush on the brush roller 8, the cleaning and regeneration of the gap of the screen cylinder 5 are realized, the continuous separation and use of the screen cylinder 5 are realized, and the service life of equipment is prolonged.

The above is right the utility model provides a novel fiber classifying screen introduces in detail. The principles and embodiments of the present invention have been explained herein using specific embodiments, which are merely used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A novel fiber grading sieve is characterized in that: including barrel (1), barrel (1) is including setting up into thick liquid mouth (2) and long fiber export (3), the short fiber export (4) of setting at the top in the lower part, be provided with a sieve section of thick bamboo (5) with barrel (1) coaxial line in barrel (1), sieve section of thick bamboo (5) are rotatory through motor (6) drive, sieve section of thick bamboo (5) are upper portion closed cylindrical sieve section of thick bamboo, and short fiber export (4) are through short fiber pipeline (7) and sieve section of thick bamboo (5) top intercommunication, still be provided with brush roller (8) parallel with sieve section of thick bamboo (5) axis direction in barrel (1), brush roller (8) and sieve section of thick bamboo (5) outer wall contact.

2. The novel fiber grading screen according to claim 1, wherein the motor I (6) is arranged at the bottom of the inner side of the cylinder (1), the upper end of the motor I (6) is fixedly connected with the rotor (9), the rotor (9) is fixedly connected with the inner wall of the screen cylinder (5), the top of the screen cylinder (5) is rotatably connected with the inner wall of the cylinder (1), the screen cylinder (5) is provided with a through hole (10), and the short fiber pipeline (7) passes through the through hole (10) and is communicated with the screen cylinder (5).

3. The novel fiber grading screen according to claim 1, wherein the brush roller (8) is rotated by a second motor (11), the second motor (11) is disposed on the outer surface of the top of the barrel (1), and the rotating rod of the brush roller (8) extends out of the barrel (1) and is fixedly connected with the working end of the second motor (11).

4. A new fibre sizing screen according to claim 1, characterised in that the axis of the inlet (2) is tangential along the cylinder (1).

5. A new fibre sizing screen according to claim 1, characterised in that the screen cylinder (5) is rotated towards the slurry inlet (2).

6. A new fibre sizing screen according to claim 1, characterised in that the direction of rotation of the brush roller (8) is opposite to the direction of rotation of the screen cylinder (5).

7. A novel fiber grading screen according to claim 1, characterized in that the outer wall of the screen cylinder (5) is uniformly provided with a plurality of flow disturbing blocks (12) along the circumferential direction, and the side surfaces of the flow disturbing blocks (12) face the outer wall of the screen cylinder (5).

8. A new fibre sizing screen according to claim 7, characterised in that the turbulence block (12) is provided with 1-3 strips in the circumferential direction of the screen cylinder (5).

9. A new fibre sizing screen according to claim 1, characterised in that the long fibre outlet (3) and the short fibre outlet (4) are in the same plane.

10. The novel fiber grading sieve according to claim 1, wherein a slag containing groove (13) is formed in the bottom of the inner side of the barrel (1), the slag containing groove (13) extends out of the barrel (1) through a slag discharging pipeline (14), a baffle (15) is arranged at the outlet of the slag discharging pipeline (14), and the baffle (15) is fixedly connected with the pipeline through bolts and nuts.