A channel body of a triangular prism pulper

Abstract

The utility model discloses a kind of trough bodies of three-prism pulper, mainly related to the technical field of three-prism pulper.It includes trough body, the trough body includes triangular side wall and conical groove bottom, the triangular side wall is equipped with spoiler column, the conical groove bottom is equipped with multiple guide plates, three angles and three edges of the triangular side wall are all circular arc, and edge curvature radius is greater than angle curvature radius still includes several fixed legs being set in trough body bottom.The beneficial effects of the utility model are that: solve the problem that existing trough body stirs pulp exists "blind area", improve the uniformity after pulping and the efficiency of pulping pulp.

Description

Technical Field

[0001] This utility model relates to the technical field of triangular prism pulpers, specifically a trough for a triangular prism pulper. Background Technology

[0002] In the papermaking industry, the pulper is the core equipment. Its core function is to break down fibrous raw materials (wood pulp, waste paper, etc.) into individual fibers to provide qualified pulp for subsequent papermaking.

[0003] Currently, slurry crushers generally use O-shaped troughs. Because the inner wall of the O-shaped trough is a continuous, smooth arc surface, the thrust of the blades during slurry mixing causes the slurry to preferentially slide along the smooth arc surface with the least resistance, rather than being "forced" upwards or tumbled laterally by the blades. It's like a ball spinning in a smooth bowl; it only circles along the bowl wall and won't be stirred to the center or flipped up and down. However, to avoid friction between the blades and the trough wall, there is a certain gap between the blade edge and the inner wall of the O-shaped trough. The arc surface of the O-shaped trough causes this "gap area" to extend along the entire arc, forming a continuous "annular blind zone"—once the slurry enters this blind zone, it completely escapes the blades' range of action, neither being sheared nor driven, which to some extent reduces the uniformity and efficiency of the slurry after crushing. Furthermore, after long-term mixing, the slurry will form a "fixed, regular circulation trajectory" within the trough—constantly circulating along the arc path of the O-shaped trough, preventing intersecting or chaotic convection. For example, when mixing minced meat, only the outer layer of meat rotates, while the inner and bottom layers remain almost motionless. This results in uneven mixing, where the outer layer is broken up while the inner layer remains in chunks, further reducing the uniformity of the pulverized paste and the efficiency of the pulverization process. Utility Model Content

[0004] The purpose of this invention is to provide a trough for a triangular prism pulper, which solves the problem of "blind spots" in the mixing of slurry in existing troughs, and improves the uniformity and efficiency of slurry after crushing.

[0005] To achieve the above objectives, the utility model employs the following technical solution: A trough for a triangular prism pulper includes a trough body comprising triangular sidewalls and a conical bottom. The triangular sidewalls are provided with turbulence columns, and the conical bottom is provided with multiple guide plates. The three corners and three sides of the triangular sidewalls are all arc-shaped, and the radius of curvature of the sides is greater than the radius of curvature of the corners. The trough body also includes several fixed support legs disposed at the bottom of the trough body.

[0006] Furthermore, the cross-section of the turbulence column is triangular.

[0007] Furthermore, it also includes several movable legs that are slidably connected to the fixed legs. The fixed legs are provided with several limiting grooves, and the movable legs are symmetrically provided with limiting blocks. The lower side of the limiting blocks is in contact with the limiting grooves.

[0008] Furthermore, the movable support leg is provided with a fixed plate that slides in contact with the limiting block, a first spring is provided between the limiting block and the fixed plate, a push rod is slidably connected to the movable support leg, the end of the push rod is provided with a conical block, one side of the conical block is provided with a conical surface, and the end of the limiting block is provided with an inclined surface that contacts the conical surface.

[0009] Furthermore, the bottom of the movable support leg is provided with a base plate, the base plate is provided with several through holes, the push rod extends to the outside after passing through the base plate, the push rod is provided with a limiting rod, and a second spring is provided between the limiting rod and the movable support leg.

[0010] Furthermore, the movable support leg is provided with several reinforcing plates that are slidably connected to the push rod, and the second spring is disposed between one of the reinforcing plates and the limiting rod.

[0011] Furthermore, the push rod has several reinforcing ribs on its side.

[0012] Furthermore, the limiting blocks are in multiple sets.

[0013] Furthermore, the turbulence column is equipped with a main water pipe, and the main water pipe is equipped with several branch water pipes that pass through the turbulence column and extend into the tank body.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. When the slurry enters the tank, the agitation of the paddles causes the slurry to rotate within the tank. When the slurry enters the agitation blind zone under the action of centrifugal force, the triangular sidewall is composed of three arc surfaces and three corners connected by zigzag lines. When the agitator pushes the slurry along the wall, it will directly collide with the "corners" of the triangle, instantly breaking the smooth flow trajectory of the slurry. This prevents it from continuing to slide along the wall and forces it to change direction (upward, diagonally downward, or tumbling in the center of the tank). The obstructed and deflected slurry will form "crossing and turbulent convection motion" within the tank, causing slurry from different directions to collide and intersect with each other, rather than forming a fixed circulation. This carries the slurry to the core area of ​​the paddle's motion trajectory, eliminating the "aggregation blind zone," achieving uniform pulverization of the slurry, and improving the uniformity and efficiency of pulverizing the slurry. 2. When the slurry rotates in the tank, the direction of the slurry flow can be further changed by the turbulence column and the guide plate, and a vortex flowing towards the center of the rotor can be formed, which further carries the slurry to the core area of ​​the blade motion trajectory, eliminates the "blind zone of stirring", realizes uniform crushing of the slurry, and improves the uniformity of the crushed slurry and the efficiency of crushing the slurry. 3. Through the design of triangular sidewalls and rounded corners (side curvature > corner curvature), the large side curvature (close to a plane) allows the triangular sidewalls to retain the effect of eliminating the "blind zone" of the agitator, preventing the agitator from slipping against the wall and bringing the agitator to the core area of ​​the agitator's movement trajectory, maintaining high uniformity and efficiency after grinding. At the same time, the rounded corners of the triangular sidewalls make the agitator slide more smoothly and prevent the agitator from getting stuck at the corners, thus solving the problems of pure triangular tanks being prone to sticking to the wall, easy to wear, and difficult to clean, thereby improving the service life of the tank. Attached Figure Description

[0015] Appendix Figure 1 This is a structural schematic diagram of the tank body of this utility model.

[0016] Appendix Figure 2 This is a schematic diagram of the conical groove bottom of this utility model.

[0017] Appendix Figure 3 This is a schematic diagram of the structure of the conical turbulence column of this utility model.

[0018] Appendix Figure 4 This is a schematic diagram of the structure of the movable support leg of this utility model.

[0019] Appendix Figure 5 This is a partial enlarged view of the main water pipe of this utility model.

[0020] The labels shown in the attached diagram: 1. Tank body; 2. Triangular sidewall; 3. Conical tank bottom; 4. Baffle column; 5. Guide plate; 6. Fixed support leg; 7. Movable support leg; 8. Limiting groove; 9. Limiting block; 10. Fixed plate; 11. First spring; 12. Push rod; 13. Conical block; 14. Conical surface; 15. Inclined surface; 16. Base plate; 17. Through hole; 18. Limiting rod; 19. Second spring; 20. Reinforcing plate; 21. Reinforcing rib; 22. Main water pipe; 23. Branch water pipe. Detailed Implementation

[0021] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0022] This utility model provides a trough for a triangular prism pulper, such as... Figures 1-3As shown, the system includes a tank 1, which comprises a triangular sidewall 2 and a conical bottom 3. The triangular sidewall 2 is equipped with turbulence-inducing columns 4, and the conical bottom 3 is equipped with multiple guide plates 5. The specific number and angle of the guide plates 5 vary depending on the volume of the tank 1. When the slurry enters the tank 1, it is stirred by the impeller blades, causing the slurry to rotate within the tank 1. When the slurry enters the stirring blind zone under centrifugal force, because the triangular sidewall 2 is composed of three arc surfaces and three sharp corners, the stirring impeller blades push the slurry along... When the slurry flows along the wall, it will directly collide with the "edge" of the triangle, instantly breaking the smooth flow trajectory of the slurry. This will prevent it from continuing to slide along the wall and force it to change direction (upward, diagonally downward, or tumbling in the center of tank 1). The obstructed and deflected slurry will form "crossing and turbulent convection" in tank 1, causing slurry from different directions to collide and intersect with each other, rather than in a fixed circulation. This will carry the slurry to the core area of ​​the blade's movement trajectory, eliminating the "blind zone of stirring," achieving uniform pulverization of the slurry, and improving the uniformity and efficiency of pulverizing the slurry. In addition, when the slurry rotates in the tank 1, the direction of the slurry flow can be further changed by the turbulence column 4 and the guide plate 5, and a vortex flowing towards the center of the rotor can be formed, which further carries the slurry to the core area of ​​the blade motion trajectory, eliminates the "stirring blind zone", realizes uniform crushing of the slurry, and improves the uniformity of the crushed slurry and the efficiency of crushing the slurry. The three corners and three sides of the triangular sidewall 2 are all rounded, and the radius of curvature of the sides is greater than that of the corners. Through the design of the triangular sidewall 2 with rounded corners (side curvature > corner curvature), the large side curvature (close to a plane) allows the triangular sidewall 2 to retain the effect of eliminating the "blind zone" of the agitator, preventing the agitator from slipping against the wall, and bringing the agitator to the core area of ​​the agitator's movement trajectory, maintaining a high degree of uniformity and efficiency after crushing. At the same time, the rounded corners of the triangular sidewall 2 make the agitator slide more smoothly and prevent the agitator from getting stuck at the corners, thus solving the problems of pure triangular tanks being prone to sticking to the wall, easy to wear, and difficult to clean, thereby improving the service life of the tank 1. It also includes fixed support legs 6 set at the bottom of the tank body 1 for supporting and fixing the tank body.

[0023] Preferred, such as Figures 1-3 As shown, the cross-section of the turbulence column 4 is triangular. The turbulence column 4 contacts the slurry attached to the wall through its edges, further changing the direction of the slurry flow and forming a vortex flowing towards the center of the rotor. This further carries the slurry to the core area of ​​the blade's motion trajectory, eliminating the "stirring blind zone," achieving uniform pulverization of the slurry, and improving the uniformity and efficiency of the pulverized slurry.

[0024] Preferred, such as Figure 1 , Figure 2 and Figure 4As shown, the movable support leg 7 is slidably connected to the fixed support leg 6, and also includes several movable support legs 7 slidably connected to the fixed support leg 6. The fixed support leg 6 is provided with several limiting grooves 8, and the movable support leg 7 is symmetrically provided with limiting blocks 9. The lower side of the limiting block 9 contacts the limiting groove 8. By sliding the movable support leg 7 on the fixed support leg 6, the height of the feed inlet of the tank 1 is adjusted, thereby raising or lowering the feed inlet of the tank 1 according to the height of the discharge port of the upstream equipment, ensuring that the slurry can enter the tank 1 in a "direct drop" manner, avoiding slurry splashing and pipe blockage caused by height difference. After the height of the tank 1 is adjusted, the lower side of the limiting block 9 contacts the limiting groove 8 to restrict the relative movement of the movable support leg 7 and the fixed support leg 6, preventing unintentional adjustment of the height of the tank 1 by external force, which would affect the normal feeding of upstream slurry, thereby improving the stability of the slurry crusher.

[0025] Preferred, such as Figure 4 As shown, the movable support leg 7 is provided with a fixed plate 10 that slides in contact with the limiting block 9. This plate guides the limiting block 9 as the movable support leg 7 slides, while also strengthening the support leg. A first spring 11 is provided between the limiting block 9 and the fixed plate 10. A push rod 12 is slidably connected to the movable support leg 7. A tapered block 13 is provided at the end of the push rod 12, and a tapered surface 14 is provided on one side of the tapered block 13. The end of the limiting block 9 is provided with an inclined surface 15 that contacts the tapered surface 14. Adjustment of the movable support leg 7 relative to the fixed plate is necessary. When the position of the fixed support leg 6 is determined, the push rod 12 is pulled down so that the conical block 13 at the end of the push rod 12 no longer contacts the limiting block 9. Under the action of the rebound force of the first spring 11, the two limiting blocks 9 are driven to slide inward until the limiting blocks 9 slide out of the limiting groove 8, thereby releasing the restriction on the movement of the movable support leg 7 relative to the fixed support leg 6. This allows the feed inlet of the tank 1 to be raised or lowered according to the height of the discharge port of the upstream equipment, ensuring that the slurry can enter the tank 1 in a "direct drop" manner, avoiding slurry splashing and pipe blockage caused by height difference. After adjusting the height of the trough 1, push the push rod 12 upward so that the conical block 13 contacts the limiting block 9 again. The force generated by the contact between the conical surface 14 and the inclined surface 15 drives the two limiting blocks 9 to move outward until the limiting blocks 9 enter the limiting groove 8. The contact between the lower side of the limiting block 9 and the limiting groove 8 restricts the relative movement of the movable leg 7 and the fixed leg 6, preventing the external force from unintentionally adjusting the height of the trough 1 and affecting the normal feeding of the upstream slurry, thereby improving the stability of the slurry crusher.

[0026] Preferred, such as Figure 4As shown, the bottom of the movable support leg 7 is provided with a base plate 16, and the base plate 16 is provided with several through holes 17. The push rod 12 passes through the base plate 16 and extends to the outside. The push rod 12 is provided with a limiting rod 18. A second spring 19 is provided between the limiting rod 18 and the movable support leg 7. No additional force is required to drive the push rod 12 to move, thereby simplifying the operation steps of adjusting the height of the tank 1 and improving the efficiency of adjusting the height of the tank 1.

[0027] Preferred, such as Figure 4 As shown, the movable support leg 7 is provided with several reinforcing plates 20 that are slidably connected to the push rod 12. The second spring 19 is disposed between one of the reinforcing plates 20 and the limiting rod 18, which guides the sliding of the push rod 12 and strengthens the load-bearing capacity of the support leg, thereby further improving the stability of the crusher's operation.

[0028] Preferred, such as Figure 4 As shown, the push rod 12 has several reinforcing ribs 21 on its side to strengthen the push rod 12 and ensure the stability of the overall structure.

[0029] Preferred, such as Figure 4 As shown, the limiting block 9 consists of multiple sets, which strengthens the load-bearing capacity between the movable support leg 7 and the fixed support leg 6, and further improves the stability of the crusher's operation.

[0030] Preferred, such as Figure 5 As shown, the turbulence column 4 is equipped with a main water pipe 22, and the main water pipe 22 is equipped with several branch water pipes 23 that pass through the turbulence column 4 and extend into the tank 1. Specifically, the main water pipe 22 is connected to an external water pump, and water is pumped into the main water pipe 22 by the water pump. The water flows out from the several branch water pipes 23 connected to the main water pipe 22. The water outlet is set on the side that does not come into contact with the slurry, so that the direction of water flow is consistent with the direction of stirring. The water flow further promotes the rotation of the slurry, increases the circulation speed of the slurry, and thus improves the slurry crushing effect of the crusher.

[0031] Example 1 This utility model provides a trough for a triangular prism pulper, such as... Figures 1-3As shown, when the slurry enters the tank 1, it is stirred by the blades and rotated within the tank 1. When the slurry enters the stirring blind zone under the action of centrifugal force, since the triangular sidewall 2 is composed of three arc surfaces and three edges, when the stirring blades push the slurry to flow along the wall, it will directly collide with the "edges" of the triangle, instantly breaking the smooth flow trajectory of the slurry and preventing it from continuing to slide along the wall. It can only be forced to change direction (upward, diagonally downward, or tumbling in the center of the tank 1). The slurry that is obstructed and changes direction will form "cross and turbulent convection motion" in the tank 1, causing slurry from different directions to collide and intersect with each other, rather than a fixed circulation, bringing the slurry to the core area of ​​the blade movement trajectory, eliminating the "stirring blind zone", achieving uniform pulverization of the slurry, and improving the uniformity and efficiency of pulverizing the slurry. In addition, when the slurry rotates in the tank 1, the direction of the slurry flow can be further changed by the turbulence column 4 and the guide plate 5, and a vortex flowing towards the center of the rotor can be formed, which further carries the slurry to the core area of ​​the blade motion trajectory, eliminates the "stirring blind zone", realizes uniform crushing of the slurry, and improves the uniformity of the crushed slurry and the efficiency of crushing the slurry. In addition, the design of triangular sidewall 2 with rounded corners (side curvature > corner curvature) ensures that the triangular sidewall 2 retains the effect of eliminating the "blind zone" of the agitator due to the large side curvature (close to a plane). This prevents the agitator from slipping against the wall and carries the agitator to the core area of ​​the agitator's movement trajectory, maintaining high uniformity and efficiency after crushing. At the same time, the rounded corners of the triangular sidewall 2 make the agitator slide more smoothly and prevent the agitator from getting stuck at the corners. This solves the problems of pure triangular tanks being prone to sticking to the wall, easy to wear, and difficult to clean, thereby improving the service life of the tank 1.

[0032] Example 2 Based on Example 1, such as Figure 2 and Figure 4 As shown, when it is necessary to adjust the position of the movable support leg 7 relative to the fixed support leg 6, a crane is used to lift the tank body 1 so that the push rod 12 is no longer in contact with the ground. Under the action of the second spring 19, the force is transmitted through the limit rod 18, which drives the push rod 12 to move downward. This causes the conical block 13 at the end of the push rod 12 to no longer contact the limit block 9. Under the action of the first spring 11, the two limit blocks 9 are driven to slide inward until the limit block 9 slides out of the limit groove 8, thus releasing the restriction on the movement of the movable support leg 7 relative to the fixed support leg 6. This allows the feed inlet of the tank body 1 to be raised or lowered according to the height of the discharge port of the upstream equipment, ensuring that the slurry can enter the tank body 1 in a "direct drop" manner, avoiding slurry splashing and pipe blockage caused by height difference. After adjusting the height of the trough 1, slide the movable support leg 7 downwards, causing the push rod 12 to contact the ground. The resulting force causes the push rod 12 to move upwards relative to the movable support leg 7, making the conical block 13 contact the limiting block 9 again. The force generated by the contact between the conical surface 14 and the inclined surface 15 drives the two limiting blocks 9 to move outwards and into the limiting groove 8 until the bottom plate 16 at the end of the movable support leg 7 contacts the ground. The bottom plate 16 is fixed to the ground by pre-made anchor bolts. At the same time, the lower side of the limiting block 9 contacts the limiting groove 8, restricting the relative movement of the movable support leg 7 and the fixed support leg 6. This prevents external forces from unintentionally adjusting the height of the trough 1 and affecting the normal feeding of upstream slurry, thereby improving the stability of the slurry crusher. In addition, no additional force is required to drive the push rod 12 to move, thus simplifying the operation steps of adjusting the height of the trough 1 and improving the efficiency of adjusting the height of the trough 1.

Claims

1. A trough for a triangular prism pulper, comprising a trough (1), characterized in that: The tank (1) includes a triangular sidewall (2) and a conical bottom (3). The triangular sidewall (2) is provided with a turbulence column (4), and the conical bottom (3) is provided with multiple guide plates (5). The three corners and three sides of the triangular sidewall (2) are all arc-shaped, and the radius of curvature of the sides is greater than that of the corners. It also includes several fixed legs (6) set at the bottom of the tank (1).

2. The trough of a triangular prism pulper according to claim 1, characterized in that: The cross-section of the turbulence column (4) is triangular.

3. The trough of a triangular prism pulper according to claim 1, characterized in that: It also includes several movable legs (7) that are slidably connected to the fixed legs (6). The fixed legs (6) are provided with several limiting grooves (8). The movable legs (7) are symmetrically provided with limiting blocks (9). The lower side of the limiting blocks (9) is in contact with the limiting grooves (8).

4. The trough of a triangular prism pulper according to claim 3, characterized in that: The movable support leg (7) is provided with a fixed plate (10) that slides in contact with the limiting block (9). A first spring (11) is provided between the limiting block (9) and the fixed plate (10). A push rod (12) is slidably connected to the movable support leg (7). A conical block (13) is provided at the end of the push rod (12). A conical surface (14) is provided on one side of the conical block (13). An inclined surface (15) that contacts the conical surface (14) is provided at the end of the limiting block (9).

5. The trough of a triangular prism pulper according to claim 4, characterized in that: The bottom of the movable support leg (7) is provided with a base plate (16), and the base plate (16) is provided with several through holes (17). The push rod (12) passes through the base plate (16) and extends to the outside. The push rod (12) is provided with a limiting rod (18), and a second spring (19) is provided between the limiting rod (18) and the movable support leg (7).

6. The trough of a triangular prism pulper according to claim 5, characterized in that: The movable support leg (7) is provided with several reinforcing plates (20) that are slidably connected to the push rod (12), and the second spring (19) is disposed between one of the reinforcing plates (20) and the limiting rod (18).

7. The trough of a triangular prism pulper according to claim 4, characterized in that: The push rod (12) has several reinforcing ribs (21) on its side.

8. The trough of a triangular prism pulper according to claim 3, characterized in that: The limiting block (9) consists of multiple sets.

9. The trough of a triangular prism pulper according to claim 1, characterized in that: The turbulence column (4) is provided with a main water pipe (22), and the main water pipe (22) is provided with a number of branch water pipes (23) that pass through the turbulence column (4) and extend into the tank (1).

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