High-pressure coal cinder flushing and blanking device for coal cleaning plant

Abstract

The utility model relates to the technical field of coal cinder treatment, in particular to a high-pressure coal cinder flushing blanking device for a coal cleaning plant, which comprises a blanking hopper, a support plate, a water tank, a booster pump and a flushing component. And the water tank is arranged at the bottom of the supporting plate, and the booster pump is arranged at the top of the supporting plate. The flushing assembly is composed of a supporting frame, a motor, a rotating plate, a connecting rod and an L-shaped frame, a nozzle is installed on the L-shaped frame and communicates with a booster pump through a spraying pipe, and the input end of the booster pump communicates with the water tank. According to the device, through cooperation of the booster pump and the flushing assembly, automatic high-pressure flushing of coal cinder crust on the side wall of the blanking hopper is achieved, the labor intensity and potential safety hazards of manual cleaning are reduced, meanwhile, the flushing angle and the waste water flow guide design are optimized, and the cleaning range, the flushing quality and the system stability are improved.

Description

Technical Field

[0001] This utility model relates to the field of coal slag treatment technology, specifically a high-pressure flushing coal slag discharge device for coal washing plants. Background Technology

[0002] Cleaning the slag hopper is a crucial step in coal washing, especially when slag falls from the screening machine or other processing equipment into the collection hopper. Due to the particle characteristics, moisture content, and impact during transport, slag may accumulate or clump on the inclined wall of the hopper. The hopper is typically installed above the slag processing equipment to receive and collect slag after screening or processing. This structure makes the slag susceptible to the influence of the moist inclined wall during its descent. Fine particles in the slag easily adhere to the moist wall, forming a continuous "slag skin." If not removed promptly, this layer gradually thickens, hindering the smooth flow of material. This accumulation or clumping not only obstructs the normal flow of slag but can also cause equipment blockages and shutdowns, increasing operational risks. It also puts increased pressure on subsequent conveying equipment, affecting the stability and continuity of the entire coal washing system.

[0003] In existing technologies, to address the problem of coal slag adhesion and clumping in the hopper, manual cleaning combined with high-pressure water guns is typically used. Operators must enter the equipment or stand on the operating platform, using a handheld high-pressure water gun to rinse heavily clogged areas. For safety, workers usually need to wear protective clothing, waterproof gloves, and face masks, and adjust the water pressure and spray angle according to the location of the blockage to achieve a more thorough cleaning effect.

[0004] Manual cleaning methods have many drawbacks. First, the cleaning process is labor-intensive, and prolonged operation can easily lead to worker fatigue or even injury. Second, manual operation is inefficient, especially when dealing with large hoppers or extensive slag accumulation areas, often requiring multiple personnel to work together, which is time-consuming and labor-intensive. Third, due to the subjectivity of the operation, different operators may use different methods and achieve different results, making it difficult to ensure consistent cleaning quality. Therefore, this utility model proposes a high-pressure flushing coal slag discharge device for coal washing plants to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a high-pressure flushing and slag discharge device for coal washing plants to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-pressure flushing coal slag discharge device for a coal washing plant, comprising: a discharge hopper, a support plate fixedly connected around the outer wall of the discharge hopper, a water tank at the bottom of the support plate, a booster pump at the top of the support plate, and a flushing assembly on the upper side of the booster pump.

[0007] The flushing assembly includes a support frame. One end of the support frame is fixedly connected to the side wall of the hopper. A motor is fixedly installed on the lower surface of the other end of the support frame. The output end of the motor is fixedly connected to a rotating plate. One end of the rotating plate is rotatably connected to a connecting rod. The other end of the connecting rod is rotatably connected to an L-shaped frame. The L-shaped frame is rotatably mounted on the support frame. A nozzle is fixedly installed on one side of the upper surface of the L-shaped frame. One end of the nozzle is connected to a spray pipe. The other end of the nozzle is connected to the output end of a booster pump. The input end of the booster pump is connected to a water tank.

[0008] Preferably, the bottom of the support plate is fixedly connected to the water tank, and the top of the support plate is fixedly connected to the booster pump.

[0009] Preferably, the input end of the booster pump is connected to the water tank via a pipe, and the output end of the booster pump is fixedly connected to one end of the nozzle via a flexible hose.

[0010] Preferably, the other end of the nozzle is fixedly connected to the nozzle pipe, and the nozzle is fixedly connected to the L-shaped frame through a connecting bracket.

[0011] Preferably, the L-shaped frame is rotatably connected to the support frame via a fixing pin, one end of the connecting rod is rotatably connected to the L-shaped frame via a limiting pin, and the other end of the connecting rod is rotatably connected to the upper surface of the rotating plate via a connecting pin.

[0012] Preferably, a protective plate is fixedly installed on the top of the connecting frame, a receiving box is detachably installed on the lower surface of the hopper, and a guide plate is fixedly installed on the lower surface of the receiving box.

[0013] Preferably, the guide plate is hollow, and connecting ears are provided on both sides of the bottom of the guide plate and are fixedly connected to the connecting ears.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This device, through the cooperation of a booster pump and a flushing component, achieves automated high-pressure flushing of the coal slag "slag skin" on the side wall of the hopper, avoiding the high labor intensity, low efficiency and safety hazards of manual cleaning, and improving the cleaning effect and stable operation of the system.

[0016] 2. The flushing components of the device (including motor, rotating plate, connecting rod and L-shaped frame) can adjust the flushing angle and range of the nozzle, expand the cleaning coverage area, and ensure the consistency of flushing quality. At the same time, through the cooperation of the collection box and the guide plate, the flushing wastewater is effectively prevented from flowing into the slag treatment equipment, further improving the practicality and environmental protection of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2This is a top view of the overall structure of this utility model;

[0019] Figure 3 This is a bottom view of the overall structure of this utility model;

[0020] Figure 4 This is a side view of the overall structure of this utility model.

[0021] In the diagram: 1. Feed hopper; 2. Support plate; 3. Water tank; 4. Support frame; 5. Motor; 6. Rotating plate; 7. Connecting rod; 8. L-shaped frame; 9. Nozzle; 10. Spray pipe; 11. Booster pump; 12. Pull pipe; 13. Telescopic hose; 14. Connecting frame; 15. Fixing pin; 16. Limiting pin; 17. Connecting pin; 18. Container box; 19. Guide plate; 20. Connecting ear; 21. Protective plate. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Please see Figures 1 to 4This utility model provides a technical solution: a high-pressure flushing coal slag discharge device for a coal washing plant, comprising a discharge hopper 1, which is located below a screening machine and above the inlet of a coal slag treatment device, for receiving and collecting coal slag after screening or treatment by the screening machine. Support plates 2 are fixedly connected to the outer walls of the discharge hopper 1 to support it and improve its stability. A water tank 3 is located at the bottom of the support plate 2 to store the flushing water and further enhance the stability of the support plate 2. A booster pump 11 is located at the top of the support plate 2 and is electrically connected to an external control device. The booster pump 11 increases the water pressure of the spray, ensuring effective removal of the "slag skin" formed on the inclined wall of the discharge hopper 1, preventing coal slag accumulation or clumping. A flushing assembly is located above the booster pump 11, which can be used to flush the coal slag. The direction of the hopper 1 is adjusted during the rinsing process to improve the rinsing quality. The rinsing assembly includes a support frame 4. One end of the support frame 4 is fixedly connected to the side wall of the hopper 1. A motor 5 is fixedly installed on the lower surface of the other end of the support frame 4. The motor 5 is electrically connected to an external control device. The output end of the motor 5 passes through the support frame 4 at the end away from the hopper 1 and is fixedly connected to a rotating plate 6. One end of the rotating plate 6 is rotatably connected to a connecting rod 7. The other end of the connecting rod 7 is rotatably connected to an L-shaped frame 8. The L-shaped frame 8 is rotatably mounted on the support frame 4. The support frame 4 limits the movement of the L-shaped frame 8. A nozzle 9 is fixedly installed on one side of the upper surface of the L-shaped frame 8. One end of the nozzle 9 is connected to a spray pipe 10. The other end of the nozzle 9 is connected to the output end of a booster pump 11. The input end of the booster pump 11 is connected to a water tank 3. The booster pump 11 draws water out of the water tank 3 and sprays the rinsing liquid out through the connection between the nozzle 9 and the spray pipe 10, thereby rinsing and cleaning the hopper 1.

[0024] The bottom of the support plate 2 is fixedly connected to the water tank 3, and the top of the support plate 2 is fixedly connected to the booster pump 11. The support plate 2 fixes the water tank 3 and the booster pump 11. The input end of the booster pump 11 is connected to the water tank 3 through the suction pipe 12, so that water can be drawn out through the suction pipe 12. The output end of the booster pump 11 is fixedly connected to one end of the nozzle 9 through the telescopic hose 13, so that when the nozzle 9 moves, the continuous flow of water can be ensured through the connection of the telescopic hose 13. The other end of the nozzle 9 is fixedly connected to the spray pipe 10. The nozzle 9 is fixedly connected to the L-shaped frame 8 through the connecting frame 14. The connecting frame 14 fixes the nozzle 9. The L-shaped frame 8 is rotatably connected to the support frame 4 through the fixing pin 15. The fixing pin 15 is fixedly sleeved in the support frame 4. One end of the connecting rod 7 is rotatably connected to the L-shaped frame 8 through the limiting pin 16, and the other end of the connecting rod 7 is rotatably connected to the upper surface of the rotating plate 6 through the connecting pin 17.

[0025] A protective plate 21 is fixedly installed on the top of the connecting frame 14. The protective plate 21 protects the nozzle 9 and the spray pipe 10 to prevent coal slag from falling onto the ground and damaging the nozzle 9 and the spray pipe 10. A receiving box 18 is detachably installed on the lower surface of the hopper 1. A guide plate 19 is fixedly installed on the lower surface of the receiving box 18. The receiving box 18 is used to collect the flushing water during the flushing of coal slag. The guide plate 19 can discharge the collected water outward to prevent the flushing water from flowing into the coal slag treatment equipment. The guide plate 19 is hollow. Connecting ears 20 are provided on both sides of the bottom of the guide plate 19 and are fixedly connected to the connecting ears 20. The connecting ears 20 facilitate the fixation of the guide plate 19, and thus the fixing of the receiving box 18.

[0026] In actual use, when it is necessary to clean the coal slag and lumps attached to the hopper 1, firstly, the bottom of the guide plate 19 is fixed to the coal slag treatment equipment through the connecting lug 20 at the bottom of the guide plate 19, and at the same time, the upper surface of the receiving box 18 at the top of the guide plate 19 is made to abut against the bottom of the hopper 1. At this time, by starting the booster pump 11, the booster pump 11 draws water from the water tank 3 through the connection of the suction pipe 12, and then through the booster pump 11 and the connection of the telescopic hose 13, the water is sent to the nozzle 9. Finally, the high-pressure water is sprayed out through the spray pipe 10, thereby cleaning the coal slag and lumps on the side wall of the hopper 1. Then, by starting the control motor 5, the motor 5 drives the rotating plate 6 to rotate, and the rotating plate 6 rotates at the connecting pin 17. The moving connection drives one end of the connecting rod 7 to move, and the other end of the connecting rod 7 pulls the L-shaped frame 8 to move through the connection of the limiting pin 16. The L-shaped frame 8 then rotates back and forth on the support frame 4 under the limitation of the fixed pin 15, thereby causing the L-shaped frame 8 to drive the connecting frame 14 to swing back and forth at a certain angle, which in turn causes the spray pipe 10 to swing at a certain angle, thereby rinsing different positions of the dropping hopper 1, expanding the cleaning range, ensuring the cleaning quality, and avoiding the trouble of manual cleaning. At the same time, the slag or lumps washed down are collected by the receiving box 18, and under the guidance of the guide plate 19, the rinsing water is guided outward, thereby preventing the rinsing wastewater from flowing into the slag treatment equipment. After rinsing is completed, the guide plate 19 can be disassembled, and production can continue.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure flushing coal slag discharge device for a coal washing plant, comprising a discharge hopper (1), characterized in that: The outer side wall of the hopper (1) is fixedly connected with a support plate (2), a water tank (3) is provided at the bottom of the support plate (2), a booster pump (11) is provided at the top of the support plate (2), and a flushing assembly is provided on the upper side of the booster pump (11). The flushing assembly includes a support frame (4), one end of which is fixedly connected to the side wall of the hopper (1), and a motor (5) is fixedly installed on the lower surface of the other end of the support frame (4). The output end of the motor (5) is fixedly connected to the rotating plate (6). One end of the rotating plate (6) is rotatably connected to the connecting rod (7), and the other end of the connecting rod (7) is rotatably connected to the L-shaped frame (8). The L-shaped frame (8) is rotatably installed on the support frame (4). A nozzle (9) is fixedly installed on one side of the upper surface of the L-shaped frame (8). The nozzle (9) is connected to one end of the spray pipe (10), and the other end of the nozzle (9) is connected to the output end of the booster pump (11). The input end of the booster pump (11) is connected to the water tank (3).

2. The high-pressure flushing coal slag discharge device for a coal washing plant according to claim 1, characterized in that: The bottom of the support plate (2) is fixedly connected to the water tank (3), and the top of the support plate (2) is fixedly connected to the booster pump (11).

3. The high-pressure flushing coal slag discharge device for a coal washing plant according to claim 2, characterized in that: The input end of the booster pump (11) is connected to the water tank (3) through the suction pipe (12), and the output end of the booster pump (11) is fixedly connected to one end of the nozzle (9) through the telescopic hose (13).

4. A high-pressure flushing coal slag discharge device for a coal washing plant according to claim 3, characterized in that: The other end of the nozzle (9) is fixedly connected to the nozzle pipe (10), and the nozzle (9) is fixedly connected to the L-shaped frame (8) through the connecting frame (14).

5. A high-pressure flushing coal slag discharge device for a coal washing plant according to claim 4, characterized in that: The L-shaped frame (8) is rotatably connected to the support frame (4) via a fixing pin (15). One end of the connecting rod (7) is rotatably connected to the L-shaped frame (8) via a limiting pin (16), and the other end of the connecting rod (7) is rotatably connected to the upper surface of the rotating plate (6) via a connecting pin (17).

6. A high-pressure flushing coal slag discharge device for a coal washing plant according to claim 4, characterized in that: The top of the connecting frame (14) is fixedly installed with a protective plate (21), and a receiving box (18) is detachably installed on the lower surface of the hopper (1). A guide plate (19) is fixedly installed on the lower surface of the receiving box (18).

7. A high-pressure flushing coal slag discharge device for a coal washing plant according to claim 6, characterized in that: The guide plate (19) is hollow, and connecting ears (20) are provided on both sides of the bottom of the guide plate (19) and are fixedly connected to the connecting ears (20).

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