Pulp deslagging system and deslagging method in paper product manufacturing process

Abstract

The present invention provides a pulp slag removal system and a slag removal method in a paper product manufacturing process, which relates to the technical field of papermaking, and comprises: a slag removal pool; a sealing cover plate is arranged above the slag removal pool; a first drive motor, the first drive motor is fixedly connected to the left side of the slag removal pool by bolts, and the output end of the first drive motor is connected to and drives the pulp propulsion shaft; it has an auxiliary propulsion mechanism, through which the pulp and impurities with larger volumes that fail to pass through the screen plate in time are pushed, and the probability of the screen plate surface being blocked is reduced, and the screened excess impurities are transported to the outside of the slag removal pool through a residue pushing component, so as to avoid the use of the screen plate being affected by excessive impurities, and solve the problem that for current traditional pulp processing equipment, as the filtration amount increases and the screened impurities accumulate, the probability of the screen plate being blocked will increase accordingly, the screening effect of the screen plate will decrease accordingly, frequent maintenance is required, and continuity is not easy to achieve.

Description

Technical Field

[0001] The invention relates to the technical field of papermaking, and in particular to a pulp slag removal system and a slag removal method in a paper product manufacturing process. Background Art

[0002] Traditional pulping refers to the production process of using chemical methods, mechanical methods or a combination of the two to decompose plant fiber raw materials into natural or bleached pulp. The commonly used process is to crush, cook, wash, screen, bleach, purify and dry the plant fiber raw materials; paper can be recycled. In order to save costs, some manufacturers can reuse the recycled waste paper according to the type of paper produced, process the waste paper into pulp, and then process the pulp into finished paper. In the process of pulping, the pulp is broken by a pulper and filtered through a screen plate to filter out the larger impurities in the pulp that have not been broken.

[0003] However, as far as the current traditional pulp processing equipment is concerned, after the pulper completes pulping, the pulp is filtered through a screen plate. As the filtration volume increases and the impurities screened accumulate, the probability of the screen plate being blocked will increase, and the screening effect of the screen plate will decrease, requiring frequent maintenance and not easy to achieve continuity. Summary of the invention

[0004] In view of this, the present invention provides a pulp slag removal system and a slag removal method in a paper product manufacturing process, which has an auxiliary propulsion mechanism, through which pulp that fails to pass through the screen plate in time and impurities with larger volumes are pushed, and screening is continued during the pushing process, thereby improving the screening effect and reducing the probability of blockage of the screen plate surface. The screened-out excess impurities are transported to the outside of the slag removal pool through a residue pushing component, thereby avoiding excessive impurities affecting the use of the screen plate.

[0005] The present invention provides a pulp slag removal system and a slag removal method in a paper product manufacturing process, specifically comprising: a slag removal tank; a sealing cover plate is arranged above the slag removal tank; a first drive motor, the first drive motor is fixedly connected to the left side of the slag removal tank by bolts, and the output end of the first drive motor is connected to and drives the pulp propulsion shaft; the pulp propulsion shaft is provided at three locations, and the three pulp propulsion shafts are all rotatably connected to the inside of the slag removal tank; a horizontal screen plate, the horizontal screen plate is fixedly connected to the left side of the inside of the slag removal tank by bolts, and the horizontal screen plate is located below the three pulp propulsion shafts; an oblique screen plate, the left end edge of the oblique screen plate is connected to the right edge of the horizontal screen plate by bolts, and the oblique screen plate is fixedly connected to the inner wall of the slag removal tank; a second drive motor, the second drive motor is fixedly connected to the front surface of the slag removal tank by bolts, and the output shaft of the second drive motor is fixedly connected to and drives the residual propulsion assembly; a discharge pulp pump, the discharge pulp pump is fixedly connected to the front of the slag removal tank, and the discharge pulp pump input pipe is connected to the inside of the slag removal tank.

[0006] Optionally, a material collecting bottom plate tilted forward is provided at the bottom of the slag removal pool, and an impurity discharge pipe is provided on the outer surface of the right wall of the slag removal pool. The impurity discharge pipe is a pipe body with an inclined structure.

[0007] Optionally, the right edge of the sealing cover plate is hingedly connected to a movable cover plate, and three pulp input pipes are fixedly connected to the upper left side of the sealing cover plate.

[0008] Optionally, the left ends of the three pulp propulsion shafts are fixedly connected with synchronous propulsion sprockets, and the three pulp propulsion shafts form a chain drive through the synchronous propulsion sprockets and chains, and pulp propulsion blades with a spiral structure are provided on the outer wall of the pulp propulsion shaft.

[0009] Optionally, a rectangular horizontal sieve opening is provided on the surface of the horizontal sieve plate.

[0010] Optionally, a pulp horizontal push groove with an arc-shaped groove structure is transversely provided on the horizontal screen plate, and a rectangular in-groove pulp screen opening is provided at the bottom of the pulp horizontal push groove, and the in-groove pulp screen opening is perpendicular to the pulp horizontal push groove.

[0011] Optionally, a semicircular waste collecting pipe groove is provided at the right end of the inclined screen plate, a rectangular pipe wall sieve opening is provided at the bottom of the waste collecting pipe groove, the pipe wall sieve opening is perpendicular to the axis of the waste collecting pipe groove, and an inclined sieve opening with a rectangular trough structure is provided on the plate body of the inclined screen plate.

[0012] Optionally, the residue propulsion assembly is formed by connecting and combining a horizontal propulsion shaft and an oblique propulsion shaft through a coupling, and residue propulsion blades are fixedly connected to the outer wall of the horizontal propulsion shaft, and the rear end of the horizontal propulsion shaft is connected to the oblique propulsion shaft.

[0013] Optionally, the oblique propulsion shaft is tilted, there is an angle of twenty degrees between the oblique propulsion shaft and the horizontal propulsion shaft, and oblique propulsion blades are fixedly connected to the outer wall of the oblique propulsion shaft.

[0014] Beneficial Effects

[0015] The pulp slag removing equipment according to each embodiment of the present invention is provided with an auxiliary propulsion mechanism compared with the slag removing and filtering mechanism of the conventional pulp processing equipment. The auxiliary propulsion mechanism is used to push the pulp that fails to pass through the screen plate in time and the impurities with a larger volume. The screening is continued during the pushing process to improve the screening effect and reduce the probability of the screen plate surface being blocked. The screened-out excess impurities are transported to the outside of the slag removing pool through the residue pushing assembly to avoid excessive impurities affecting the use of the screen plate.

[0016] In addition, the pulp is transported to the horizontal screen plate through the pulp input pipe. Due to the fluidity of the pulp, when the pulp enters above the horizontal screen plate, part of the pulp-like fluid passes through the horizontal screen plate through the horizontal screen opening and enters the aggregate bottom plate, and part of the pulp flows into the pulp horizontal push groove. The first drive motor drives a pulp propulsion shaft connected to it, and the linkage is achieved through the chain transmission effect formed between the three pulp propulsion shafts. The three pulp propulsion shafts can be synchronously driven to rotate by the first drive motor, and the pulp that has not passed the screening is moved to the right in the pulp horizontal push groove through the pulp propulsion shaft with a spiral shaft structure. During the movement, most of the pulp that has not passed the horizontal screen plate passes through the pulp screen opening in the groove, passes through the horizontal screen plate through the pulp screen opening in the groove, and enters the aggregate bottom plate for concentration, while the impurities with larger volume that have not been screened are continuously pushed to the right through the pulp propulsion shaft, so as to avoid accumulation on the horizontal screen plate, causing failure of the horizontal screen plate, and reducing the cleaning and maintenance frequency of the horizontal screen plate.

[0017] In addition, after screening through the horizontal screen plate, the screened out larger impurities and a small amount of pulp are pushed into the inclined screen plate. In the process of the impurities and a small amount of pulp passing through the inclined screen plate, a small amount of residual pulp passes through the inclined screen mouth into the aggregate bottom plate, while the impurities in the pulp slide into the horizontal pulp push groove. In the horizontal pulp push groove, the horizontal propulsion shaft rotates under the drive of the second drive motor, and the debris is pushed backward by the spiral structure of the residue propulsion blade. During the propulsion process, the remaining very small amount of pulp passes through the inclined screen plate into the aggregate bottom plate for storage through the structure of the tube wall screen mouth. The rear end of the residue propulsion blade is connected to the inclined propulsion shaft to transport excess impurities in the impurity discharge pipe, and the impurities are discharged from the equipment through the impurity discharge pipe, thereby realizing the function of automatic slag discharge, reducing the cleaning and maintenance frequency of the equipment, and facilitating continuous production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached picture:

[0021] Figure 1 A schematic diagram showing the overall structure of a pulp deslagging device according to an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of an impurity discharge pipe according to an embodiment of the present invention is shown;

[0023] Figure 3 A schematic diagram showing the interior of a deslagging pool according to an embodiment of the present invention is shown;

[0024] Figure 4 A schematic diagram of a horizontal screen plate according to an embodiment of the present invention is shown;

[0025] Figure 5 A schematic diagram of an aggregate base plate according to an embodiment of the present invention is shown;

[0026] Figure 6 A schematic diagram of a pulp propulsion shaft according to an embodiment of the present invention is shown;

[0027] Figure 7 A schematic diagram of a residue propulsion assembly according to an embodiment of the present invention is shown;

[0028] Figure 8 A schematic diagram of a system flow according to an embodiment of the present invention is shown.

[0029] Reference numerals list

[0030] 1. Slag removal tank; 101. Aggregate bottom plate; 102. Impurity discharge pipe; 2. Sealing cover plate; 201. Movable cover plate; 202. Pulp input pipe; 3. First drive motor; 4. Pulp propulsion shaft; 401. Synchronous propulsion sprocket; 402. Pulp propulsion blade; 5. Horizontal screen plate; 501. Pulp horizontal push trough; 5011. Pulp screen opening in trough; 502. Horizontal screen opening; 6. Oblique screen plate; 601. Waste collection pipe trough; 6011. Pipe wall screen opening; 602. Oblique screen opening; 7. Second drive motor; 8. Residue propulsion assembly; 801. Horizontal propulsion shaft; 8011. Residue propulsion blade; 802. Oblique propulsion shaft; 8021. Oblique propulsion blade; 9. Discharge pulp pump. DETAILED DESCRIPTION

[0031] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0032] Example: Please refer to Figures 1 to 8 :

[0033] The present invention proposes a pulp slag removal system and a slag removal method in a paper product manufacturing process, comprising: a slag removal pool 1; a sealing cover plate 2 is arranged above the slag removal pool 1; a first drive motor 3, the first drive motor 3 is fixedly connected to the left side of the slag removal pool 1 by bolts, and the output end of the first drive motor 3 is connected to and drives a pulp propulsion shaft 4; the pulp propulsion shaft 4 is provided at three locations, and the three pulp propulsion shafts 4 are all rotatably connected to the inside of the slag removal pool 1; a horizontal screen plate 5, the horizontal screen plate 5 is fixedly connected to the left side of the inside of the slag removal pool 1 by bolts, and the water The flat screen plate 5 is located below the three pulp propulsion shafts 4; the oblique screen plate 6, the left end edge of the oblique screen plate 6 is connected to the right edge of the horizontal screen plate 5 by bolts, and the oblique screen plate 6 is fixedly connected to the inner wall of the slag removal tank 1; the second drive motor 7, the second drive motor 7 is fixedly connected to the front surface of the slag removal tank 1 by bolts, and the output shaft of the second drive motor 7 is fixedly connected and drives the residual propulsion assembly 8; the discharge pulp pump 9, the discharge pulp pump 9 is fixedly connected to the front of the slag removal tank 1, and the input pipe of the discharge pulp pump 9 is connected to the inside of the slag removal tank 1.

[0034] In addition, a forwardly inclined aggregate bottom plate 101 is provided at the bottom of the slag removal pool 1, and an impurity discharge pipe 102 is provided on the outer surface of the right wall of the slag removal pool 1. The impurity discharge pipe 102 is a pipe body with an inclined structure. The impurity discharge pipe 102 with an inclined structure can raise the height of the residue outlet, thereby avoiding waste caused by pulp flowing out of the impurity discharge pipe 102. The aggregate bottom plate 101 is inclined, so that the pulp flowing into the aggregate bottom plate 101 can be concentrated.

[0035] In addition, the right edge of the sealing cover plate 2 is hingedly connected to a movable cover plate 201, and three pulp input pipes 202 are fixedly connected to the upper left side of the sealing cover plate 2. The pulper inputs pulp into the deslagging tank 1 through the three pulp input pipes 202 to make the pulp distribution more uniform. Through the action of the movable cover plate 201, it is convenient to open the deslagging tank 1 and clean and maintain the inside of the tank body.

[0036] In addition, the left ends of the three pulp propulsion shafts 4 are fixedly connected with a synchronous propulsion sprocket 401, and the three pulp propulsion shafts 4 form a chain drive through the synchronous propulsion sprocket 401 and the chain, and a pulp propulsion blade 402 with a spiral structure is provided on the outer wall of the pulp propulsion shaft 4; the first drive motor 3 is used to drive a pulp propulsion shaft 4 connected thereto, and the linkage is achieved through the chain drive effect formed between the three pulp propulsion shafts 4, that is, the three pulp propulsion shafts 4 can be synchronously driven to rotate by a first drive motor 3, and the pulp that has not passed the screening is moved to the right in the pulp horizontal push groove 501 through the action of the pulp propulsion shaft 4 with a spiral shaft structure.

[0037] In addition, a rectangular horizontal screen opening 502 is provided on the surface of the horizontal screen plate 5, a pulp horizontal push groove 501 with an arc-shaped groove structure is transversely provided on the horizontal screen plate 5, and a rectangular in-groove pulp screen opening 5011 is provided at the bottom of the pulp horizontal push groove 501, and the in-groove pulp screen opening 5011 is perpendicular to the pulp horizontal push groove 501; the pulp is transported to the horizontal screen plate 5 through the pulp input pipe 202, and because the pulp has fluidity, when the pulp enters the top of the horizontal screen plate 5, part of the pulp-like fluid passes through the horizontal screen opening 502 and passes through the horizontal screen plate 5 into the aggregate bottom plate 101, and part of the pulp flows into the pulp water The horizontal push trough 501 is driven by the first driving motor 3 to drive a pulp propulsion shaft 4 connected thereto, and linkage is achieved through the chain transmission effect formed between the three pulp propulsion shafts 4, that is, the three pulp propulsion shafts 4 are synchronously driven to rotate by the first driving motor 3, and the pulp that has not passed the screening is moved to the right in the pulp horizontal push trough 501 through the action of the pulp propulsion shaft 4 with a spiral shaft structure. During the movement, most of the pulp that has not passed the horizontal screen plate 5 passes through the pulp screen opening 5011 in the trough, passes through the horizontal screen plate 5 through the pulp screen opening 5011 in the trough, and enters the aggregate bottom plate 101 for concentration.

[0038] In addition, a waste collecting pipe groove 601 with a semicircular arc structure is arranged at the right end of the inclined screen plate 6, a rectangular pipe wall screen opening 601 is opened at the bottom of the waste collecting pipe groove 601, and the pipe wall screen opening 6011 is perpendicular to the axis of the waste collecting pipe groove 601, and an inclined screen opening 602 with a rectangular groove structure is opened on the plate body of the inclined screen plate 6. Through the screening of the horizontal screen plate 5, the impurities with larger volume and a small amount of pulp screened out are pushed into the inclined screen plate 6. In the process of the impurities and a small amount of pulp passing through the inclined screen plate 6, a small amount of residual pulp passes through the inclined screen opening 602 and enters the aggregate bottom plate 101, while the impurities in the pulp slide into the pulp horizontal push groove 501.

[0039] In addition, the residue propulsion assembly 8 is formed by connecting and combining a horizontal propulsion shaft 801 and an oblique propulsion shaft 802 through a coupling, and a residue propulsion blade 8011 is fixedly connected to the outer wall of the horizontal propulsion shaft 801, and the rear end of the horizontal propulsion shaft 801 is connected to the oblique propulsion shaft 802; the oblique propulsion shaft 802 is inclined, and there is an angle of twenty degrees between the oblique propulsion shaft 802 and the horizontal propulsion shaft 801, and an oblique propulsion blade 8021 is fixedly connected to the outer wall of the oblique propulsion shaft 802. The horizontal propulsion shaft 801 rotates under the drive of the second drive motor 7. The spiral structure of the residue pushing blade 8011 pushes the debris backwards. During the pushing process, the structure of the tube wall screen opening 6011 allows the remaining very small amount of pulp to pass through the inclined screen plate 6 and enter the aggregate bottom plate 101 for storage. The rear end of the residue pushing blade 8011 is connected to the inclined pushing shaft 802 to transport excess impurities in the impurity discharge pipe 102, and the impurities are discharged from the equipment through the impurity discharge pipe 102, thereby realizing the function of automatic slag discharge, reducing the cleaning and maintenance frequency of the equipment, and facilitating continuous production.

[0040] Specific usage and function of this embodiment: In the present invention, pulp is transported to the horizontal screen plate 5 through the pulp input pipe 202, part of the pulp passes through the horizontal screen plate 5 through the horizontal screen opening 502 and enters the collection bottom plate 101, and part of the pulp flows into the pulp horizontal push groove 501, and the three pulp propulsion shafts 4 are driven by the first drive motor 3. Under the action of the pulp propulsion shaft 4 with a spiral shaft structure, the pulp that has not passed the screening is moved to the right in the pulp horizontal push groove 501, and most of the pulp that has not passed the horizontal screen plate 5 passes through the pulp screen opening 5011 in the groove and enters the collection bottom plate 101 for concentration, while the impurities with larger volume that have not been screened are continuously pushed to the right through the pulp propulsion shaft 4, and the screened impurities with larger volume are continuously pushed to the right. Impurities and a small amount of pulp are pushed into the inclined screen plate 6, and a small amount of residual pulp passes through the inclined screen opening 602 into the aggregate bottom plate 101, while the impurities in the pulp slide into the pulp horizontal push groove 501. The horizontal propulsion shaft 801 rotates under the drive of the second drive motor 7, and the debris is pushed backward by the spiral structure of the residue propulsion blade 8011. During the propulsion process, the remaining very small amount of pulp passes through the inclined screen plate 6 into the aggregate bottom plate 101 for storage through the structure of the tube wall screen opening 6011. The rotation of the inclined propulsion shaft 802 connected to the rear end of the residue propulsion blade 8011 is used to realize the propulsion effect of the waste, and the excess impurities are transported in the impurity discharge pipe 102, and the impurities are discharged from the equipment through the impurity discharge pipe 102.

[0041] Finally, it should be noted that when describing the position of each component and the matching relationship between them, the present invention usually takes one / a pair of components as an example. However, those skilled in the art should understand that such position, matching relationship, etc. are also applicable to other components / other pairs of components.

[0042] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A pulp removal system in the paper product manufacturing process, characterized in that: The pulp deslagging system comprises: a deslagging pool (1); a sealing cover plate (2) is arranged above the deslagging pool (1); a first drive motor (3), the first drive motor (3) is fixedly connected to the left side of the deslagging pool (1) by bolts, and the output end of the first drive motor (3) is connected to and drives a pulp propulsion shaft (4); the pulp propulsion shaft (4) is arranged at three locations, and the three pulp propulsion shafts (4) are all rotatably connected to the inside of the deslagging pool (1); a horizontal screen plate (5), the horizontal screen plate (5) is fixedly connected to the left side of the inside of the deslagging pool (1) by bolts, and the horizontal screen plates (5) are located at the three pulp propulsion shafts (4). Below the propulsion shaft (4); an oblique sieve plate (6), the left end edge of the oblique sieve plate (6) is connected to the right edge of the horizontal sieve plate (5) by bolts, and the oblique sieve plate (6) is fixedly connected to the inner wall of the slag removal tank (1); a second drive motor (7), the second drive motor (7) is fixedly connected to the front surface of the slag removal tank (1) by bolts, and the output shaft of the second drive motor (7) is fixedly connected to and drives the residue propulsion assembly (8); a discharge pulp pump (9), the discharge pulp pump (9) is fixedly connected to the front of the slag removal tank (1), and the input pipe of the discharge pulp pump (9) is connected to the inside of the slag removal tank (1); A rectangular horizontal sieve opening (502) is provided on the surface of the horizontal sieve plate (5); The horizontal screen plate (5) is laterally provided with a pulp horizontal push groove (501) with an arc-shaped groove structure, and a rectangular in-groove pulp screen opening (5011) is provided at the bottom of the pulp horizontal push groove (501), and the in-groove pulp screen opening (5011) is perpendicular to the pulp horizontal push groove (501); A waste collection pipe groove (601) with a semicircular arc structure is arranged at the right end of the inclined sieve plate (6), a rectangular pipe wall sieve opening (6011) is opened at the bottom of the waste collection pipe groove (601), the pipe wall sieve opening (6011) is perpendicular to the axis of the waste collection pipe groove (601), and an inclined sieve opening (602) with a rectangular trough structure is opened on the plate body of the inclined sieve plate (6); The residue propulsion assembly (8) is formed by connecting a horizontal propulsion shaft (801) and an oblique propulsion shaft (802) via a coupling, and a residue propulsion blade (8011) is fixedly connected to the outer wall of the horizontal propulsion shaft (801), and the rear end of the horizontal propulsion shaft (801) is connected to the oblique propulsion shaft (802); The oblique propulsion shaft (802) is arranged to be inclined, and there is an angle of twenty degrees between the oblique propulsion shaft (802) and the horizontal propulsion shaft (801), and an oblique propulsion blade (8021) is fixedly connected to the outer wall of the oblique propulsion shaft (802).

2. The pulp removal system in the paper product manufacturing process according to claim 1, characterized in that: The bottom of the slag removal pool (1) is provided with a material collecting bottom plate (101) arranged to be inclined forward, and the outer surface of the right wall of the slag removal pool (1) is provided with an impurity discharge pipe (102), and the impurity discharge pipe (102) is a pipe body with an inclined structure.

3. The pulp removal system in the paper product manufacturing process according to claim 1, characterized in that: The right edge of the sealing cover plate (2) is hingedly connected to a movable cover plate (201), and three pulp input pipes (202) are fixedly connected to the upper left side of the sealing cover plate (2).

4. The pulp removal system in the paper product manufacturing process according to claim 1, characterized in that: The left ends of the three pulp propulsion shafts (4) are all fixedly connected to synchronous propulsion sprockets (401), and the three pulp propulsion shafts (4) form a chain drive through the synchronous propulsion sprockets (401) and the chain, and pulp propulsion blades (402) with a spiral structure are provided on the outer wall of the pulp propulsion shaft (4).

5. The method for removing slag from a pulp removal system in a paper product manufacturing process according to any one of claims 1 to 4, characterized in that: The following steps are involved:

01. First, the pulp is transported to the horizontal screen plate (5) through the pulp input pipe (202), part of the pulp passes through the horizontal screen plate (5) through the horizontal screen opening (502) and enters the collecting bottom plate (101), and part of the pulp flows into the pulp horizontal push trough (501); 02. Control the first drive motor (3) to rotate, and drive the three pulp propulsion shafts (4) through the first drive motor (3). Under the action of the pulp propulsion shaft (4) with a spiral shaft structure, the pulp that has not passed the screening is moved to the right in the pulp horizontal push groove (501), and most of the pulp that has not passed the horizontal screen plate (5) passes through the pulp screen opening (5011) in the groove and passes through the horizontal screen plate (5) to enter the collection bottom plate (101) for collection, while the impurities with a larger volume that have not passed the screening are continuously pushed to the right through the pulp propulsion shaft (4); 03. The screened impurities with larger volume and a small amount of pulp are pushed into the inclined screen plate (6), and a small amount of residual pulp passes through the inclined screen opening (602) and enters the collecting bottom plate (101), while the impurities in the pulp slide into the pulp horizontal push groove (501); 04. The second drive motor (7) is controlled to operate, and the horizontal propulsion shaft (801) is driven to rotate by the second drive motor (7), and the debris is pushed backwards by the residue propulsion blade (8011) with a spiral structure. During the propulsion process, the remaining very small amount of pulp passes through the inclined screen plate (6) through the structure of the pipe wall screen opening (6011) and enters the collection bottom plate (101) for storage; 05. The rear end of the residue propulsion blade (8011) is connected to the rotation of the oblique propulsion shaft (802) to achieve the propulsion effect of the waste, transport the excess impurities in the impurity discharge pipe (102), and discharge the impurities from the equipment through the impurity discharge pipe (102). At this point, the pulp removal process is completed.

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