Pulping tail section slag pulp screening device

Abstract

The utility model relates to the field of tail-end sieve residue pulp screening, in particular to a pulping tail-section sieve residue pulp screening device which comprises a box body, a pulp outlet notch and a residue outlet notch are formed in the front position and the rear position of the box body respectively, a screening mechanism used for screening residue pulp is arranged in the box body, and a residue removing mechanism matched with the screening mechanism is arranged in the box body. According to the utility model, the first driving motor is arranged, and the deflection turntable is arranged in the box body, so that the deflection turntable is driven by the driving motor to eccentrically rotate, and the lifting disc sleeved in the traction ring groove is lifted and vibrated up and down, so that slag slurry on the slag screening plate is cleaned. A second driving motor is arranged in the box body, a traction belt is used for driving ball screws on the two sides to rotate, therefore, a transverse sliding plate is driven to horizontally move front and back, a hydraulic telescopic machine is arranged in the transverse sliding plate, a telescopic plate is driven to stretch out and draw back up and down, and slag on the surface of a slag screening plate is cleaned.

Description

Technical Field

[0001] The utility model relates to the field of terminal screening residue slurry screening, in particular to a screening device for the final stage of pulping residue slurry. Background Art

[0002] The final screening slurry screening is a device used for special screening materials. It is based on the ordinary rotary vibrating screen and has a larger feed port to accommodate large feed volumes, prevent material splashing, and facilitate observation of the screen. This device is designed to handle high-viscosity, fine-grained materials, especially high-efficiency screening equipment designed for liquid materials. This screening device is particularly suitable for various mud treatments such as mine tailings, sand washing mud, and pile driving mud.

[0003] At present, most of the existing pulping end-stage screening devices use rollers to screen the slurry. However, the following problems are often encountered in the process of using rollers to screen the slurry. On the one hand, the roller screening efficiency is low, and it is often unable to cope with a large amount of slurry. On the other hand, after the screening of the slurry is completed, the roller slurry screening device is not easy to clean, and the equipment that is not cleaned properly is easily damaged during storage due to the excessive mud and sand inside. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art that the screening efficiency of the screening residue slurry screening device at the end of pulping is low and it is not easy to clean, and proposes a screening residue slurry screening device at the end of pulping.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A device for screening residue slurry at the end of pulping comprises a box body with a pulp outlet slot and a residue outlet slot respectively arranged at the front and rear positions, a pulp box for placing slurry is arranged in the pulp outlet slot, a screening mechanism for screening the residue slurry is arranged in the box body, and a residue cleaning mechanism matched with the screening mechanism is arranged in the box body.

[0007] Preferably, the sub-screening mechanism comprises a first driving motor fixedly mounted on the outside of the box body, a traction turntable fixedly connected to the output end of the first driving motor is rotatably mounted in the box body, and an eccentrically arranged traction ring groove is provided on the traction turntable, a supporting cross bar is fixedly mounted in the box body, and a limiting block is fixedly mounted on the end of the supporting cross bar, a limiting rod is fixedly arranged on the limiting block, and a limiting flange is fixedly arranged on the limiting rod, a vertical supporting rod is slidably sleeved on the limiting block, and a circular ring is arranged at one end of the vertical supporting rod, a lifting disc is arranged in the traction ring groove 7, a supporting short rod fixedly connected to the lifting disc is sleeved in the circular ring, and a sliding short rod fixedly connected to the circular ring is slidably sleeved on the limiting rod;

[0008] A screening plate which is rotatably connected to the vertical support rod is slidably sleeved in the box.

[0009] Preferably, a support spring is slidably mounted on the vertical support rod, and one end of the support spring is fixedly connected to the limit block.

[0010] Preferably, vertical limiting rods which slide through the screening plate are symmetrically arranged in the box body.

[0011] Preferably, the slag cleaning mechanism includes a second driving motor fixedly installed in the box body, and the first traction belt and the second traction belt are rotatably installed on the output end of the second driving motor. The first ball screw and the second ball screw corresponding to the first traction belt and the second traction belt driven to rotate by the second driving motor are rotatably installed on both sides of the box body, and the first ball screw and the second ball screw are respectively rotatably installed, and the first ball screw and the second ball screw are matched with movable nuts installed on them, and a transverse sliding plate is fixedly installed between the two movable nuts, and a hydraulic telescopic machine is symmetrically arranged in the transverse sliding plate, and a telescopic plate for scratching and cleaning the screening plate is fixedly installed on the end of the hydraulic telescopic machine.

[0012] Preferably, a first traction belt and a second traction belt are connected between the output end of the second drive motor and the first ball screw and the second ball screw via a coupling.

[0013] Preferably, the telescopic plate is slidably mounted inside the transverse sliding plate.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The utility model sets a first driving motor and sets a deflection turntable in the box body to realize eccentric rotation of the deflection turntable by the driving motor, so that the lifting disc set in the traction ring groove is lifted and vibrated up and down, thereby realizing the cleaning of the slag slurry on the screening plate.

[0016] 2. The utility model arranges a second driving motor in the box body, and uses a traction belt to drive the ball screws on both sides to rotate, thereby driving the horizontal sliding plate to move forward and backward horizontally. By arranging a hydraulic telescopic machine in the horizontal sliding plate, the telescopic plate can be driven to extend and retract up and down, thereby realizing the cleaning of the slag on the surface of the screening plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front structural schematic diagram of a pulping final stage screening device proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the rear structure of a pulping final stage screening device proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the connection state of the traction turntable and the lifting disc of a pulping final stage screening device proposed by the utility model;

[0020] Figure 4 For this utility model Figure 3 Schematic diagram of the structure of part A in FIG.

[0021] Figure 5 This is a schematic diagram of the connection state of the second drive motor and the first ball screw of a pulping final stage screening device proposed by the utility model;

[0022] Figure 6 For this utility model Figure 5 Schematic diagram of the enlarged structure of part B.

[0023] In the figure: 1. box body; 2. pulp outlet slot; 3. slag outlet slot; 4. pulp box; 5. first drive motor; 6. traction turntable; 7. traction ring groove; 8. support cross bar; 9. limit block; 10. limit rod; 11. sliding short rod; 12. limit flange; 13. ring; 14. lifting disc; 15. support short rod; 16. support spring; 17. support rod; 18. slag screening plate; 19. vertical limit rod; 20. second drive motor; 21. first traction belt; 22. second traction belt; 23. first ball screw; 24. second ball screw; 25. horizontal sliding plate; 26. hydraulic telescopic machine; 27. telescopic plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-Figure 6 A device for screening sludge slurry at the end of pulping comprises a box body 1 with a pulp outlet slot 2 and a sludge outlet slot 3 respectively arranged at the front and rear positions, and a pulp box 4 for placing pulp is arranged in the pulp outlet slot 2.

[0026] A screening mechanism for screening slurry is arranged in the box 1, and the screening mechanism includes a first drive motor 5 fixedly installed on the outside of the box 1 for driving the screening mechanism to work, and a traction turntable 6 fixedly connected to the output end of the first drive motor 5 is rotatably installed in the box 1, and an eccentrically arranged traction ring groove 7 is provided on the traction turntable 6. When the first drive motor 5 is started, the output end of the first drive motor 5 will drive the traction turntable 6 to rotate eccentrically, and will also drive the traction ring groove 7 to rotate eccentrically;

[0027] A supporting cross bar 8 is fixedly installed in the box body 1, and a limit block 9 is fixedly installed at the end of the supporting cross bar 8. A limit rod 10 in the vertical direction is fixedly arranged on the limit block 9, and a circular limit flange 12 is fixedly arranged on the limit rod 10. A vertical support rod 17 is slidably mounted on the limit block 9, and a support spring 16 is slidably mounted on the vertical support rod 17. One end of the support spring 16 is fixedly connected to the limit block 9, and a ring 13 is arranged at one end of the vertical support rod 17. A lifting disc 14 is arranged in the guide ring groove 7, which is eccentrically pulled by the traction ring groove 7. A supporting short rod 15 fixedly connected to the lifting disc 14 is set in the ring 13. A sliding short rod 11 fixedly connected to the ring 13 is slidably set on the limit rod 10. Therefore, when the traction ring groove 7 rotates, the lifting disc 14 will be driven to perform an up-and-down lifting vibration. The lifting vibration of the lifting disc 14 will also be transmitted to the vertical support rod 17, and the vertical support rod 17 will also perform a lifting vibration accordingly.

[0028] A screening plate 18 is slidingly sleeved in the box body 1 and is rotatably connected to the vertical support rod 17. When the vertical support rod 17 vibrates, the screening plate 18 will also be driven to vibrate up and down, thereby achieving the cleaning of the slurry. Vertical limit rods 19 that slide through the screening plate 18 are symmetrically arranged in the box body 1. The vertical limit rods 19 play a limiting role while the screening plate 18 vibrates up and down.

[0029] The box body 1 is provided with a slag cleaning mechanism matched with the screening mechanism, and the slag cleaning mechanism includes a second driving motor 20 fixedly installed in the box body 1, and the output end of the second driving motor 20 is rotatably installed with a first traction belt 21 and a second traction belt 22. When the second driving motor 20 is started, the output end of the second driving motor 20 will drive the first traction belt 21 and the second traction belt 22 to rotate, and the first ball screw 23 and the second ball screw 24 corresponding to the first traction belt 21 and the second traction belt 22 driven to rotate by the second driving motor 20 are rotatably arranged on both sides of the box body 1, and the first traction belt 21 and the second traction belt 22 are connected between the output end of the second driving motor 20 and the first ball screw 23 and the second ball screw 24 through a coupling. When the second traction belts 22 rotate, the slurry will drive the first ball screw 23 and the second ball screw 24 on both sides to rotate. The first ball screw 23 and the second ball screw 24 are both equipped with movable nuts, and a transverse sliding plate 25 is fixedly installed between the two movable nuts. Therefore, when the first ball screw 23 and the second ball screw 24 rotate, the transverse sliding plate 25 will move horizontally in the front and rear directions. A hydraulic telescopic machine 26 is symmetrically arranged in the transverse sliding plate 25, and a telescopic plate 27 for scratching and cleaning the screening plate 18 is fixedly installed at the end of the hydraulic telescopic machine 26. The telescopic plate 27 is slidably mounted in the transverse sliding plate 25. When the hydraulic telescopic machine 26 is started, the output end of the hydraulic telescopic machine 26 will drive the telescopic plate 27 to extend to achieve the cleaning effect on the surface of the screening plate 18.

[0030] It should be noted that the specific model and specifications of the drive motor and the hydraulic telescopic machine 26 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it is not repeated here.

[0031] The functional principle of the utility model can be explained through the following operation modes:

[0032] Pour the unscreened slurry into the slurry screening device, start the first drive motor 5, the output end of the first drive motor 5 will drive the traction turntable 6 to rotate eccentrically, the eccentric rotation of the traction turntable 6 will drive the lifting disc 14 to vibrate up and down, the lifting and lowering vibration of the lifting disc 14 will drive the supporting short rod 15 to vibrate up and down, the supporting short rod 15 will drive the supporting rod 17 to vibrate up and down, the supporting rod 17 will drive the screening plate 18 to vibrate up and down, and the screening plate 18 will be used to screen the slurry;

[0033] The slurry screened by the screening plate 18 will flow into the slurry box 4 below, and the slurry remaining on the screening plate 18 is larger particles of slag.

[0034] Start the second drive motor 20, the second drive motor 20 will drive the first traction belt 21 and the second traction belt 22 to rotate, the rotation of the first traction belt 21 and the second traction belt 22 will drive the first ball screw 23 and the second ball screw 24 to rotate, the rotation of the first ball screw 23 and the second ball screw 24 will drive the transverse sliding plate 25 to move horizontally in the front and rear directions, while the transverse sliding plate 25 is moving, the output end of the hydraulic telescopic machine 26 will drive the telescopic plate 27 to move downward until it contacts the screening plate 18, at the same time, the transverse sliding plate 25 is moving back and forth, the telescopic plate 27 will scrape the slag on the surface of the screening plate 18 and move until it reaches the slag discharge slot 3, and the slag will be discharged from the slag discharge slot 3.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for screening the reject slurry at the end of pulping, comprising a box body (1) with a pulp outlet slot (2) and a reject outlet slot (3) respectively arranged at the front and rear positions, characterized in that: The slurry outlet slot (2) is provided with a slurry box (4) for placing slurry, the box (1) is provided with a screening mechanism for screening slag slurry, and the box (1) is provided with a slag cleaning mechanism that cooperates with the screening mechanism; the screening mechanism comprises a first drive motor (5) fixedly mounted on the outside of the box (1), a traction turntable (6) fixedly connected to the output end of the first drive motor (5) is rotatably mounted in the box (1), and an eccentrically arranged traction ring groove (7) is provided on the traction turntable (6), a support crossbar (8) is fixedly mounted in the box (1), and the end of the support crossbar (8) is A limit block (9) is fixedly installed on the limit block (9), a limit rod (10) is fixedly arranged on the limit block (9), and a limit flange (12) is fixedly arranged on the limit rod (10), a vertical support rod (17) is slidably mounted on the limit block (9), and a circular ring (13) is arranged at one end of the vertical support rod (17), a lifting disc (14) is arranged in the traction ring groove (7), a supporting short rod (15) fixedly connected to the lifting disc (14) is mounted in the circular ring (13), and a sliding short rod (11) fixedly connected to the circular ring (13) is slidably mounted on the limit rod (10); A screening plate (18) is slidably mounted inside the box body (1) and is rotatably connected to the vertical support rod (17).

2. The device for screening the pulping residue at the final stage of pulping according to claim 1, characterized in that: A support spring (16) is slidably sleeved on the vertical support rod (17), and one end of the support spring (16) is fixedly connected to the limit block (9).

3. The device for screening the pulping residue at the final stage of pulping according to claim 1, characterized in that: Vertical limiting rods (19) that slide through the screening plate (18) are symmetrically arranged in the box body (1).

4. The device for screening the pulping residue at the final stage of pulping according to claim 1, characterized in that: The slag cleaning mechanism comprises a second drive motor (20) fixedly mounted in a housing (1); a first traction belt (21) and a second traction belt (22) are rotatably mounted on an output end of the second drive motor (20); a first ball screw (23) and a second ball screw (24) corresponding to the first traction belt (21) and the second traction belt (22) driven to rotate by the second drive motor (20) are rotatably mounted on both sides of the housing (1); a movable nut is mounted on each of the first ball screw (23) and the second ball screw (24); a transverse sliding plate (25) is fixedly mounted between the two movable nuts; a hydraulic telescopic machine (26) is symmetrically mounted in the transverse sliding plate (25); and a telescopic plate (27) for scraping and cleaning the slag screening plate (18) is fixedly mounted at the end of the hydraulic telescopic machine (26).

5. The device for screening the pulping residue at the final stage of pulping according to claim 4, characterized in that: A first traction belt (21) and a second traction belt (22) are connected between the output end of the second drive motor (20) and the first ball screw (23) and the second ball screw (24) via a coupling.

6. The device for screening the pulping residue at the final stage of pulping according to claim 4, characterized in that: The telescopic plate (27) is slidably mounted inside the transverse sliding plate (25).

Images