CN215481934U - Pulping equipment for reproducing corrugated core paper from waste paper - Google Patents
Pulping equipment for reproducing corrugated core paper from waste paper Download PDFInfo
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- CN215481934U CN215481934U CN202121575609.3U CN202121575609U CN215481934U CN 215481934 U CN215481934 U CN 215481934U CN 202121575609 U CN202121575609 U CN 202121575609U CN 215481934 U CN215481934 U CN 215481934U
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Abstract
The utility model discloses a pulping device for reproducing corrugated core paper from waste paper, wherein a pulping outer cylinder is provided with a pulping cylinder cavity which vertically penetrates through the pulping outer cylinder, the pulping outer cylinder is vertically fixed above a pulp collecting bin, a pulping inner cylinder is movably sleeved in the pulping cylinder cavity of the pulping outer cylinder, a motor is in transmission connection with the pulping inner cylinder to drive the pulping inner cylinder to rotate relative to the pulping outer cylinder, a pulping gap is arranged between the outer circumferential wall surface of the pulping inner cylinder and the inner circumferential wall surface of the pulping outer cylinder, grinding teeth or grinding grains which relatively protrude into the pulping gap are arranged on the outer circumferential wall surface of the pulping inner cylinder or the inner circumferential wall surface of the pulping outer cylinder, the upper end part of the pulping gap is provided with a pulp inlet, the lower end part of the pulping gap is provided with a pulp inlet, and the upper part of the pulping outer cylinder is communicated with the pulp inlet. The utility model has simple structure, low fiber breakage rate in the pulp grinding process and high long fiber recovery rate, and ensures the structural strength and toughness of the finally produced corrugated paper core paper or corrugated paper.
Description
Technical Field
The utility model relates to the technical field of waste paper papermaking pulping equipment, in particular to pulping equipment for reproducing corrugated medium paper from waste paper.
Background
The pulping production line in the reconstruction of corrugated medium paper by using waste paper comprises various devices including pulping devices, various impurity removing devices, pulping devices and various auxiliary devices for adding additives or auxiliary materials, at present, the pulping devices are used for pulping by a millstone type refiner, the loss of the millstone is serious in the pulping process, the maintenance frequency of the device is high, and fiber blocks or fiber bundles in the pulp are pressed by high pressure, grinding and impact in the pulping process, so that the fiber breakage rate of the pulp is high, the fiber quality of the pulp is seriously influenced, and finally, the strength of the produced paper is relatively low, so that improvement is necessary.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide the pulping equipment for the waste paper reconstruction of the corrugated core paper, which has the advantages of simple structure, low equipment cost and operation cost and low fiber breakage rate in the pulping process.
In order to achieve the purpose, the utility model adopts the technical scheme that: a pulping device for reproducing corrugated core paper from waste paper comprises at least one pulping device arranged in a pulping production line, wherein the pulping device comprises a motor, a pulping outer cylinder, a pulping inner cylinder and a pulp collecting bin, the pulping outer cylinder is provided with a pulping cylinder cavity which vertically penetrates through the pulping outer cylinder, the pulping outer cylinder is vertically fixed above the pulp collecting bin, the pulping inner cylinder is movably sleeved in the pulping cylinder cavity of the pulping outer cylinder, the motor is connected with the pulping inner cylinder in a transmission way to drive the pulping inner cylinder to rotate relative to the pulping outer cylinder, a pulping gap is arranged between the outer circumferential wall surface of the pulping inner cylinder and the inner circumferential wall surface of the pulping outer cylinder, grinding teeth or grinding grains which relatively protrude into the pulping gap are arranged on the outer circumferential wall surface of the pulping inner cylinder or the inner circumferential wall surface of the pulping outer cylinder, a pulp inlet is arranged at the upper end part of the pulping gap, a pulp outlet is arranged at the lower end part of the pulping gap, and a pulp inlet hopper is arranged at the upper part of the pulping outer cylinder, the lower part of the pulp inlet hopper is communicated with the pulp inlet.
In a further technical scheme, the pulping equipment comprises a hoisting mechanism, the pulping inner cylinder is vertically arranged, the upper end of the pulping inner cylinder protrudes above the pulping outer cylinder, the upper end of the pulping inner cylinder is hoisted to the hoisting mechanism, the pulping inner cylinder is freely suspended in a cavity of the pulping cylinder, after the pulping gap is filled with pulp, the width of different positions of the pulping gap is in a dynamic change state, and the motor is installed on the hoisting mechanism.
In a further technical scheme, the lower end part of the pulping inner cylinder protrudes below the pulping outer cylinder, the lower end part of the pulping inner cylinder is provided with a diversion cone part with a large upper part and a small lower part, the lower end part of the pulping outer cylinder, the lower end part of the pulping inner cylinder and the lower end part of the diversion cone part are all positioned in the pulp collecting bin, and one side of the pulp collecting bin is provided with a pulp discharging port.
In a further technical scheme, a support frame is fixed on the upper portion of the pulp collecting bin, the lower end portion of the pulping outer cylinder is fixedly installed on the support frame, and the upper end portion of the pulping outer cylinder is freely suspended.
In a further technical scheme, the middle of the refining inner cylinder is cylindrical, an inner cavity of the refining inner cylinder is sealed, a circular supporting plate which is adjacent to the pulp inlet in the vertical direction is arranged at the upper part of the inner cavity of the refining inner cylinder, a circular supporting plate which is adjacent to the pulp outlet in the vertical direction is arranged at the lower part of the inner cavity of the refining inner cylinder, a plurality of circular supporting plates are arranged at intervals in the middle of the inner cavity of the refining inner cylinder, and the circumferential side surface of each supporting plate is respectively abutted against the inner wall surface of the refining inner cylinder.
In a further technical scheme, the upper end part of the refining inner cylinder extends into the pulp inlet hopper, an annular feeding chamber with an upper opening and a large upper part and a small lower part is formed between the refining inner cylinder and the pulp inlet hopper, a plurality of arc-shaped stirring plates are fixed on the outer side of the refining inner cylinder at intervals along the circumferential direction, all the stirring plates are arranged on the lower part of the feeding chamber, the outer side edges of all the stirring plates respectively abut against the inner wall surface of the pulp inlet hopper, and the lower side of each stirring plate is adjacent to or extends into the refining gap.
In a further technical scheme, a coarse grinding area, a middle grinding area and a fine grinding area are sequentially arranged on the outer circumferential wall surface of the pulping inner cylinder from top to bottom;
a plurality of coarse grinding pulp strips arranged at intervals are formed in the area, corresponding to the coarse grinding area, of the outer circumferential wall surface of the pulping inner cylinder;
a plurality of middle pulping strips which are arranged at intervals are formed in the area of the outer circumferential wall surface of the pulping inner cylinder, which corresponds to the middle grinding area;
and a plurality of fine grinding pulp strips which are arranged at intervals are formed in the area of the outer circumferential wall surface of the refining inner cylinder, which corresponds to the fine grinding area.
In a further technical scheme, the rough grinding area is provided with a plurality of rough grinding strips arranged at intervals along the circumferential direction and a plurality of rough grinding strips arranged at intervals along the vertical direction;
the middle grinding area is provided with a plurality of middle grinding strips arranged at intervals along the circumferential direction and a plurality of middle grinding strips arranged at intervals along the vertical direction;
the fine grinding zone is provided with a plurality of fine grinding strips arranged at intervals along the circumferential direction and a plurality of fine grinding strips arranged at intervals along the vertical direction;
the width of the coarse grinding strip is larger than that of the middle grinding strip, and the width of the middle grinding strip is larger than that of the fine grinding strip;
the distance between two adjacent coarse grinding strips is larger than that between two adjacent middle grinding strips, and the distance between two adjacent middle grinding strips is larger than that between two adjacent fine grinding strips;
the thickness of the coarse grinding strip is less than that of the middle grinding strip, the thickness of the middle grinding strip is less than that of the fine grinding strip,
the coarse pulp grinding strips, the middle pulp grinding strips and the fine pulp grinding strips are respectively arranged in an inclined mode relative to the vertical direction.
In a further technical scheme, a plurality of grinding grains which are arranged at intervals and relatively protrude in the grinding gap are formed on the inner circumferential wall surface of the grinding outer cylinder;
the grinding lines are obliquely arranged relative to the vertical direction, the oblique direction of the grinding lines is opposite to that of the rough grinding strips, and the oblique directions of the rough grinding strips, the middle grinding strips and the fine grinding strips are the same.
In the further technical scheme, the thickness of the grinding lines is set to be 0.1-1mm, and the width is set to be 5-20 mm; the thickness of the coarse grinding strip is set to be 0.1-1mm, and the width is set to be 5-20 mm; the thickness of the refined pulp strips is set to be 1-3mm, and the width is set to be 1-10 mm; the width of the refining gap is set at 3-8 mm.
Compared with the prior art, the utility model has the advantages that: the utility model has simple structure, low equipment cost and operation cost, fiber breakage rate in the pulping process is less than 10 percent, fiber breakage rate is greatly reduced, the recovery rate of fibers in waste paper is more than 95 percent, and the recovery rate of long fibers is high, so that the structural strength and toughness of finally produced corrugated core paper or corrugated paper are reduced, the consumption of waste paper raw materials in unit capacity is reduced by 10 percent, the pulping energy consumption is reduced to 1 kilowatt hour per ton, the electric energy required in the pulping process is reduced by more than 45 percent, the pulping speed of one pulping equipment is 1-2 tons per hour, and the pulping efficiency is high.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the internal structure of the present invention.
The labels in the figure are:
1 a refining outer cylinder 11 and a refining gap of a refining hopper 12.
2, a flow guide conical part 22 of a refining inner cylinder 21, a supporting plate 23, a material stirring plate 24, a grinding area 26 and a fine grinding area 27 in a coarse grinding area 25 drive a hanging post 28 to drive a flange.
3 pulp collecting bin 31 supporting frame 32 discharge port.
Detailed Description
The following are merely preferred embodiments of the present invention, and do not limit the scope of the present invention.
A pulping device for reproducing corrugated medium paper from waste paper is disclosed, which is shown in figures 1 and 2 and comprises a plurality of pulping devices arranged in a pulping production line, wherein a plurality of pulping devices are combined for realizing continuous and efficient large-batch pulping, the pulping speed of each pulping device is 1-2 tons/hour, for example, the pulping speed of 10 pulping devices is 10-20 tons/hour, the pulping efficiency is greatly improved, the pulping device specifically comprises a pulping device arranged at the front end of the pulping production line, and the rear end of the pulping device is sequentially provided with a hydraulic impurity removal device, a high-concentration pressure filter device, a low-concentration pressure filter device and a pulping device.
The pulping equipment comprises a motor, a pulping outer cylinder 1, a pulping inner cylinder 2 and a pulp collecting bin 3, wherein the pulping outer cylinder 1 is provided with a pulping cylinder cavity which vertically penetrates through the pulping outer cylinder 1, the pulping outer cylinder 1 is vertically fixed above the pulp collecting bin 3, the pulping inner cylinder 2 is movably sleeved in the pulping cylinder cavity of the pulping outer cylinder 1, the motor is in transmission connection with the pulping inner cylinder 2 so as to drive the pulping inner cylinder 2 to rotate relative to the pulping outer cylinder 1, a pulping gap 12 is arranged between the outer circumferential wall surface of the pulping inner cylinder 2 and the inner circumferential wall surface of the pulping outer cylinder 1, the outer circumferential wall surface of the pulping inner cylinder 2 or the inner circumferential wall surface of the pulping outer cylinder 1 is provided with grinding teeth or grinding grains which relatively protrude in the pulping gap 12, the upper end part of the pulping gap 12 is provided with a pulp inlet, the lower end part of the pulping gap is provided with a pulp outlet, the upper part of the pulping outer cylinder 1 is provided with a pulp inlet hopper 11, and the lower part of the pulp inlet hopper 11 is communicated with the pulp inlet, the pulp obtained by pulping through the pulping equipment is sequentially pumped to the hydraulic impurity removal equipment, the high-concentration filter pressing equipment and the low-concentration filter pressing equipment through pipelines, and finally is pumped to the pulp inlet hopper 11 of the pulping equipment through the pipelines, the pulp in the pulp inlet hopper 11 enters the pulping gap 12 through the pulp inlet at the bottom of the pulp inlet hopper 11, is pulped through the pulping outer cylinder 1 and the pulping inner cylinder 2, and is discharged downwards through the pulp outlet, so that primary pulp is obtained. The utility model has simple structure, low equipment cost and operation cost, fiber breakage rate of less than 10 percent in the pulping process and high long fiber recovery rate, thereby leading the structural strength and toughness of the corrugated core paper or the corrugated paper which is finally produced to be greatly reduced, the fiber breakage rate is greatly reduced, the recovery rate of the fiber in the waste paper is more than 95 percent, the consumption of the waste paper raw material which is about in unit capacity is reduced by 10 percent, the pulping energy consumption is reduced to 1 kilowatt hour/ton, and the electric energy required in the pulping process is reduced by more than 45 percent.
The pulping equipment comprises a hoisting mechanism, a motor is arranged on the hoisting mechanism, specifically, a driving hanging column 27 is fixed at the top of the pulping inner cylinder 2, a transmission flange 28 is fixed at the top of the driving hanging column, the transmission flange 28 is movably clamped in the hoisting mechanism, the motor is in transmission connection with the transmission flange 28, and the pulping inner cylinder 2 is driven to rotate through the motor.
The upper part of the pulp collection bin 3 is fixed with a support frame 31, the lower end part of the pulping outer cylinder 1 is fixedly arranged on the support frame 31, and the upper end part of the pulping outer cylinder 1 is freely suspended. The refining inner cylinder 2 is vertically arranged, the upper end part of the refining inner cylinder 2 protrudes above the refining outer cylinder 1, the upper end part of the refining inner cylinder 2 is hung on a hoisting mechanism, the refining inner cylinder 2 is freely suspended in a refining cylinder cavity, and the width of different positions of the refining gap 12 is in a dynamic change state after the refining gap 12 is filled with pulp. After the pulp is filled in the pulping clearance 12 between the pulping outer cylinder 1 and the pulping inner cylinder 2, the pulping outer cylinder 1 and the pulping inner cylinder 2 are both under the hydraulic action of the pulp, so that the lower part of the pulping inner cylinder 2 can move in any radial direction in a small range, and the upper part of the pulping outer cylinder 1 can move in any radial direction in a small range, namely, the lower part of the pulping inner cylinder 2 and the upper part of the pulping outer cylinder 1 freely and slightly shake under the hydraulic action, so that the pulp is prevented from being excessively ground, and the lumpy, bulk or bundle-shaped fiber blocks in the pulp can be scattered, and the breakage rate of fibers in the fiber blocks can be greatly reduced.
The lower end part of the refining inner cylinder 2 protrudes below the refining outer cylinder 1, the lower end part of the refining inner cylinder 2 is provided with a diversion pyramid part 21 with a large upper part and a small lower part, the slurry flowing out through the slurry outlet is guided by the diversion pyramid part 21 to flow downwards in a centralized manner, primary slurry is collected in the slurry collection bin 3, the lower end part of the refining outer cylinder 1, the lower end part of the refining inner cylinder 2 and the lower end part of the diversion pyramid part 21 are all located in the slurry collection bin 3, one side of the slurry collection bin 3 is provided with a slurry discharge port 32, and the primary slurry is pumped to a next slurry treatment workshop through the slurry discharge port 32.
The middle part of the refining inner cylinder 2 is in a cylindrical shape, the inner cavity of the refining inner cylinder 2 is sealed, the upper part of the inner cavity of the refining inner cylinder 2 is provided with a circular supporting plate 22 which is adjacent to a pulp inlet in the vertical direction, the lower part of the inner cavity of the refining inner cylinder 2 is provided with a circular supporting plate 22 which is adjacent to a pulp outlet in the vertical direction, the middle part of the inner cavity of the refining inner cylinder 2 is provided with a plurality of circular supporting plates 22 at intervals, and the circumferential side surfaces of the supporting plates 22 respectively abut against the inner wall surface of the refining inner cylinder 2. The pulping inner cylinder 2 has stronger structural strength, the deformation of the pulping inner cylinder 2 is avoided, and the stability of the pulping inner cylinder 2 in the pulping process is improved.
The upper end of the refining inner cylinder 2 extends into the pulp inlet hopper 11, an annular feeding chamber with an upper opening and a large upper part and a small lower part is formed between the refining inner cylinder 2 and the pulp inlet hopper 11, a plurality of arc-shaped kicking plates 23 are fixed on the outer side of the refining inner cylinder 2 at intervals along the circumferential direction, each kicking plate 23 is arranged at the lower part of the feeding chamber, the outer side edges of each kicking plate 23 respectively prop against the inner wall surface of the pulp inlet hopper 11, the lower side of each kicking plate 23 is adjacent to or extends into the refining gap 12, and the kicking plates 23 rotating with the refining inner cylinder 2 at the same frequency poke and push pulp, so that the pulp rapidly enters the refining gap 12.
The outer circumferential wall surface of the pulping inner cylinder 2 is provided with a coarse grinding area 24, a middle grinding area 25 and a fine grinding area 26 from top to bottom in sequence; a plurality of coarse grinding pulp strips arranged at intervals are formed in the area, corresponding to the coarse grinding area 24, of the outer circumferential wall surface of the pulping inner cylinder 2; a plurality of middle pulping strips which are arranged at intervals are formed in the area of the outer circumferential wall surface of the pulping inner cylinder 2 corresponding to the middle grinding area 25; the outer circumferential wall of the refining inner cylinder 2 is formed with a plurality of refining bars arranged at intervals in the area corresponding to the refining zone 26. The rough grinding area 24 is provided with a plurality of rough grinding pulp strips arranged at intervals along the circumferential direction and a plurality of rough grinding pulp strips arranged at intervals along the vertical direction, so that the rough grinding processing of the pulp is completed in the rough grinding area 24, large-particle fiber blocks are scattered, and loose fibers on the surfaces of the fiber blocks are separated; the middle grinding area 25 is provided with a plurality of middle grinding strips arranged at intervals along the circumferential direction and a plurality of middle grinding strips arranged at intervals along the vertical direction, and fiber blocks in the pulp are further scattered and fibers are further separated in the middle grinding area 25; the refining zone 26 is provided with a plurality of refining pulp strips arranged at intervals along the circumferential direction and a plurality of refining pulp strips arranged at intervals along the vertical direction, the refining processing is finished in the refining zone 26, all the fiber blocks in the pulp are scattered, and all the fibers are scattered; the width of the coarse grinding strip is larger than that of the middle grinding strip, and the width of the middle grinding strip is larger than that of the fine grinding strip; the distance between two adjacent coarse grinding strips is larger than that between two adjacent middle grinding strips, and the distance between two adjacent middle grinding strips is larger than that between two adjacent fine grinding strips; the thickness of the coarse grinding strips is smaller than that of the middle grinding strips, the thickness of the middle grinding strips is smaller than that of the fine grinding strips, and the coarse grinding strips, the middle grinding strips and the fine grinding strips are respectively arranged in an inclined mode relative to the vertical direction. The coarse grinding, the middle grinding and the accurate grinding are simultaneously completed by one grinding device, and various different types of grinding devices are not required to be combined for grinding.
A plurality of grinding grains which are arranged at intervals and relatively protrude in the grinding gap 12 are formed on the inner circumferential wall surface of the grinding outer cylinder 1, and grinding is matched through the grinding grains, so that the grinding efficiency is improved; the grinding grains are obliquely arranged relative to the vertical direction, the oblique direction of the grinding grains is opposite to that of the coarse grinding pulp strips, and the oblique directions of the coarse grinding pulp strips, the middle grinding pulp strips and the fine grinding pulp strips are the same; the thickness of the grinding lines is set to be 0.1-1mm, and the width is set to be 5-20 mm; the thickness of the coarse grinding strip is set to be 0.1-1mm, and the width is set to be 5-20 mm; the thickness of the refined pulp strips is set to be 1-3mm, and the width is set to be 1-10 mm;
the width of the refining gap 12 is set at 3-8 mm.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (10)
1. The utility model provides a pulping equipment of waste paper reconstruction corrugated medium paper which characterized in that: the pulping equipment comprises a motor, a pulping outer cylinder (1), a pulping inner cylinder (2) and a pulp collecting bin (3), wherein the pulping outer cylinder (1) is provided with a pulping cylinder cavity which vertically penetrates through the pulping outer cylinder (1), the pulping outer cylinder (1) is vertically fixed above the pulp collecting bin (3), the pulping inner cylinder (2) is movably sleeved in the pulping cylinder cavity of the pulping outer cylinder (1), the motor is connected with the pulping inner cylinder (2) in a transmission way to drive the pulping inner cylinder (2) to rotate relative to the pulping outer cylinder (1), a pulping gap (12) is arranged between the outer circumferential wall surface of the pulping inner cylinder (2) and the inner circumferential wall surface of the pulping outer cylinder (1), the outer circumferential wall surface of the pulping inner cylinder (2) or the inner circumferential wall surface of the pulping outer cylinder (1) is provided with grinding teeth or grinding grains which relatively protrude in the pulping gap (12), the upper end part of the pulping gap (12) is provided with a pulp inlet, and the lower end part is provided with a pulp outlet, the upper part of the pulping outer cylinder (1) is provided with a pulp inlet hopper (11), and the lower part of the pulp inlet hopper (11) is communicated with a pulp inlet.
2. The refining apparatus for waste paper recycling corrugated medium paper according to claim 1, wherein: the pulping equipment comprises a hoisting mechanism, wherein the pulping inner cylinder (2) is vertically arranged, the upper end part of the pulping inner cylinder (2) protrudes above the pulping outer cylinder (1), the upper end part of the pulping inner cylinder (2) is hoisted to the hoisting mechanism, the pulping inner cylinder (2) is freely suspended in a cavity of the pulping cylinder, after the pulping gap (12) is filled with pulp, the width of different positions of the pulping gap (12) is in a dynamic change state, and the motor is installed on the hoisting mechanism.
3. The refining apparatus for waste paper recycling corrugated medium paper according to claim 1, wherein: the lower end of the pulping inner cylinder (2) protrudes below the pulping outer cylinder (1), the lower end of the pulping inner cylinder (2) is provided with a diversion cone part (21) with a large upper part and a small lower part, the lower end of the pulping outer cylinder (1), the lower end of the pulping inner cylinder (2) and the lower end of the diversion cone part (21) are all located in the pulp collection bin (3), and a pulp discharge port (32) is arranged on one side of the pulp collection bin (3).
4. A refining apparatus for a used paper remanufacturing corrugated medium paper according to claim 3, wherein: the upper portion of thick liquids collection storehouse (3) is fixed with support frame (31), the lower tip fixed mounting in support frame (31) of thick liquid urceolus (1), the upper end free suspension of thick liquid urceolus (1).
5. A refining apparatus for a used paper remanufacturing corrugated medium paper according to claim 3, wherein: the middle part of the refining inner cylinder (2) is in a cylindrical shape, the inner cavity of the refining inner cylinder (2) is arranged in a sealing mode, a circular supporting plate (22) which is adjacent to the pulp inlet in the vertical direction is arranged at the upper part of the inner cavity of the refining inner cylinder (2), a circular supporting plate (22) which is adjacent to the pulp outlet in the vertical direction is arranged at the lower part of the inner cavity of the refining inner cylinder (2), a plurality of circular supporting plates (22) are arranged at intervals in the middle of the inner cavity of the refining inner cylinder (2), and the circumferential side face of each supporting plate (22) abuts against the inner wall face of the refining inner cylinder (2) respectively.
6. A refining apparatus for a used paper remanufacturing corrugated medium paper according to claim 3, wherein: the upper end part of the refining inner cylinder (2) extends into the pulp inlet hopper (11), an annular feeding chamber with an upper opening and a large upper part and a small lower part is formed between the refining inner cylinder (2) and the pulp inlet hopper (11), a plurality of arc-shaped kicking plates (23) are fixed on the outer side of the refining inner cylinder (2) at intervals along the circumferential direction, each kicking plate (23) is arranged at the lower part of the feeding chamber, the outer side edge of each kicking plate (23) respectively props against the inner wall surface of the pulp inlet hopper (11), and the lower side of each kicking plate (23) is adjacent to or extends into the refining gap (12).
7. The used paper remanufacturing refining apparatus for corrugated medium paper according to any one of claims 1 to 6, wherein: the outer circumferential wall surface of the pulping inner cylinder (2) is sequentially provided with a coarse grinding area (24), a middle grinding area (25) and a fine grinding area (26) from top to bottom;
a plurality of coarse grinding pulp strips arranged at intervals are formed in the area, corresponding to the coarse grinding area (24), of the outer circumferential wall surface of the grinding inner cylinder (2);
a plurality of middle pulping strips which are arranged at intervals are formed in the area of the outer circumferential wall surface of the pulping inner cylinder (2) corresponding to the middle grinding area (25);
the outer circumferential wall surface of the refining inner cylinder (2) is formed with a plurality of refining pulp strips arranged at intervals corresponding to the refining area (26).
8. The apparatus of claim 7, wherein: the rough grinding area (24) is provided with a plurality of rough grinding strips arranged at intervals along the circumferential direction and a plurality of rough grinding strips arranged at intervals along the vertical direction;
the middle grinding area (25) is provided with a plurality of middle grinding strips arranged at intervals along the circumferential direction and a plurality of middle grinding strips arranged at intervals along the vertical direction;
the fine grinding zone (26) is provided with a plurality of fine grinding strips arranged at intervals along the circumferential direction and a plurality of fine grinding strips arranged at intervals along the vertical direction;
the width of the coarse grinding strip is larger than that of the middle grinding strip, and the width of the middle grinding strip is larger than that of the fine grinding strip;
the distance between two adjacent coarse grinding strips is larger than that between two adjacent middle grinding strips, and the distance between two adjacent middle grinding strips is larger than that between two adjacent fine grinding strips;
the thickness of the coarse grinding strip is less than that of the middle grinding strip, the thickness of the middle grinding strip is less than that of the fine grinding strip,
the coarse pulp grinding strips, the middle pulp grinding strips and the fine pulp grinding strips are respectively arranged in an inclined mode relative to the vertical direction.
9. The apparatus of claim 8, wherein: the inner circumferential wall surface of the refining outer cylinder (1) is formed with a plurality of grinding grains which are arranged at intervals and relatively protrude in the refining gap (12);
the grinding lines are obliquely arranged relative to the vertical direction, the oblique direction of the grinding lines is opposite to that of the rough grinding strips, and the oblique directions of the rough grinding strips, the middle grinding strips and the fine grinding strips are the same.
10. The apparatus of claim 9, wherein: the thickness of the grinding lines is set to be 0.1-1mm, and the width is set to be 5-20 mm; the thickness of the coarse grinding strip is set to be 0.1-1mm, and the width is set to be 5-20 mm; the thickness of the fine grinding strip is set to be 1-3mm, and the width is set to be 1-10 mm; the width of the refining gap (12) is set at 3-8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121575609.3U CN215481934U (en) | 2021-07-12 | 2021-07-12 | Pulping equipment for reproducing corrugated core paper from waste paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121575609.3U CN215481934U (en) | 2021-07-12 | 2021-07-12 | Pulping equipment for reproducing corrugated core paper from waste paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215481934U true CN215481934U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121575609.3U Active CN215481934U (en) | 2021-07-12 | 2021-07-12 | Pulping equipment for reproducing corrugated core paper from waste paper |
Country Status (1)
| Country | Link |
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| CN (1) | CN215481934U (en) |
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2021
- 2021-07-12 CN CN202121575609.3U patent/CN215481934U/en active Active
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