Automatic material cleaning device of belt conveyor

Abstract

The utility model relates to an automatic material cleaning device of a belt conveyor, which is applied to the belt conveyor and comprises a material receiving box, the material receiving box is arranged right below the belt conveyor, the material receiving box is provided with a spray head, the spray head sprays clean water, the material receiving box is uncovered, the bottom of the material receiving box is obliquely arranged, and the lowest position of the bottom of the material receiving box is provided with a discharge port; the sewage sedimentation tank is connected with the discharge port through a first conveying pipeline, and the sewage sedimentation tank is provided with an overflow port; the clean water tank is communicated with the overflow port and used for storing clean water generated by the sewage sedimentation tank, and the clean water tank is connected with the spray head through a backflow pipeline so that the spray head can spray out the clean water; the material receiving box and the spray head are arranged at the bottom of the conveyor, materials of the conveyor are scattered to the material receiving box and then washed away by clean water from the spray head, automatic cleaning of the materials falling from the belt conveyor is achieved, shutdown for material cleaning is not needed, and therefore production continuity is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyor belt cleaning, in particular to an automatic material cleaning device for a belt conveyor. Background Art

[0002] At present, in the steel smelting industry, coal powder, mineral powder, lump ore, sintered ore, pellets, coke and other logistics are all transported continuously and efficiently by belt conveyors. The length of belt conveyors ranges from 10-200 meters, and the width ranges from 80-120 centimeters. When belt conveyors transport powder or lump materials, small particles are easy to adhere to the surface of the belt, and scatter under the belt when the conveyor head wheel turns down. After running for a long time, more and more materials accumulate, affecting the normal operation of the conveyor. Therefore, manual cleaning is required regularly. However, when manual cleaning is performed under the running conveyor, people may be drawn into the machine and cause casualties, which does not meet the relevant regulations on production safety. If the enterprise adopts the method of stopping the machine to clean materials, it will cause discontinuity in production and affect normal production, which will lead to serious regression of various production indicators and a substantial increase in production costs. Utility Model Content

[0003] To this end, the technical problem to be solved by the utility model is to overcome the problem that manual cleaning of accumulated materials in the prior art not only poses a safety hazard, but also affects the transportation efficiency of the belt conveyor, and thus provides an automatic material clearing device for a belt conveyor, which realizes automatic cleaning of the dropped materials on the belt conveyor without stopping the machine for cleaning, thereby ensuring production continuity.

[0004] In order to solve the above technical problems, the utility model provides an automatic material clearing device for a belt conveyor, comprising:

[0005] A material receiving box is arranged directly below the belt conveyor, the material receiving box is provided with a nozzle, the nozzle sprays clean water, the material receiving box is arranged without a cover and its bottom is arranged obliquely, and a discharge port is arranged at the lowest point of the bottom;

[0006] A sewage sedimentation tank, which is connected to the discharge port via a first delivery pipeline, and the sewage sedimentation tank is provided with an overflow port;

[0007] A clean water tank is connected to the overflow port and is used to store the clean water produced by the sewage sedimentation tank. The clean water tank is connected to the nozzle through a return pipe so that the nozzle can spray out the clean water.

[0008] In one embodiment of the utility model, the receiving box is configured as a water trough, and the bottom of the water trough is provided with a first inclined surface and a second inclined surface, the first inclined surface and the second inclined surface are distributed along the conveying direction of the belt conveyor, and the first inclined surface and the second inclined surface are connected to form a "V"-shaped structure, and the discharge port is arranged at the lowest point of the "V"-shaped structure.

[0009] In an embodiment of the present utility model, a first flared opening is provided directly below the discharge port, and the first flared opening is disposed upright; a second flared opening is provided directly above the sewage sedimentation tank, and the second flared opening is disposed upside down. The first flared opening and the second flared opening are connected by the first conveying pipeline.

[0010] In an embodiment of the present utility model, the sewage sedimentation tank is further provided with a silt cleaning port, and the silt cleaning port is disposed lower than the overflow port.

[0011] In an embodiment of the present utility model, a filter screen is provided at the overflow port, and a filter screen is provided at one end of the reflux pipeline communicating with the clear water tank.

[0012] In an embodiment of the present utility model, a liquid level gauge is provided in the clear water tank.

[0013] In an embodiment of the present utility model, it further includes a water storage tank connected to the reflux pipeline through a second conveying pipeline, and a first water pump is used to convey the clear water in the water storage tank into the reflux pipeline.

[0014] In an embodiment of the present utility model, the reflux pipeline is sequentially provided with a first valve, a second water pump, a second valve, and a third valve from the end communicating with the clear water tank. Among them, the second conveying pipeline is connected between the second valve and the third valve.

[0015] In an embodiment of the present utility model, it further includes a PLC program control module, and the PLC program control module is electrically connected to the liquid level gauge, the first water pump, and the second water pump.

[0016] In an embodiment of the present utility model, a plurality of the spray heads are uniformly arranged around the edge of the water tank.

[0017] In an embodiment of the present utility model, it further includes a vision detection camera electrically connected to the PLC program control module, and the vision detection camera is used to detect the volume of the accumulated material in the material receiving box.

[0018] The above technical solution of the present utility model has the following beneficial effects compared with the prior art:

[0019] The automatic material cleaning device for a belt conveyor according to the present utility model realizes automatic cleaning of materials by arranging a material receiving box directly below the belt conveyor to receive scattered materials at the conveyor and spraying clear water through a nozzle to wash them into a sewage sedimentation tank, preventing the accumulation of materials under the conveyor and affecting the normal operation of the conveyor; the sewage sedimentation tank filters and separates particulate materials from clear water for material cleaning and reuse of clear water; the clear water in the clear water tank is transported to the nozzle again to clean the accumulated materials in the material receiving box, realizing the recycling of clear water and saving resources; the bottom of the material receiving box is inclined to facilitate the automatic discharge of the sewage mixed with solid and liquid from the material receiving box and prevent the accumulation of materials on the material receiving box, affecting the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to specific embodiments of the present utility model in conjunction with the accompanying drawings, where

[0021] Figure 1 is a schematic structural diagram of the automatic material cleaning device for a belt conveyor in a preferred embodiment of the present utility model.

[0022] Explanation of the reference numerals in the drawings: 1. Material receiving box; 11. First inclined surface; 12. Second inclined surface; 13. Discharge port; 2. Head pulley; 21. Tail pulley; 3. First conveying pipeline; 31. First flared opening; 32. Second flared opening; 4. Sewage sedimentation tank; 41. Silt cleaning port; 42. Overflow port; 43. Filter screen; 5. Clear water tank; 6. Pump house; 61. Second conveying pipeline; 63. Fourth valve; 7. PLC program control module; 71. Computer; 8. Liquid level gauge; 9. Return pipeline; 91. Filter screen; 92. First valve; 93. Second water pump; 94. Second valve; 95. Third valve; 96. Nozzle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further illustrates the present utility model in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited do not limit the present utility model.

[0024] Embodiment

[0025] Referring to Figure 1 As shown, in an embodiment of the present utility model, an automatic material cleaning device for a belt conveyor is applied to a belt conveyor. The belt conveyor is provided with a head pulley 2 and a tail pulley 21, and the belt conveys materials from the tail pulley 21 to the head pulley 2 and turns over at the head pulley 2. It includes

[0026] The material receiving box 1 is welded from stainless steel plates. The height of the side plate of the material receiving box 1 is 10 - 20 cm. The material receiving box 1 is arranged directly below the belt conveyor. The material receiving box 1 is provided with a nozzle 96, and the nozzle 96 is preferably set as a faucet. The nozzle 96 sprays clean water into the material receiving box 1. The material receiving box 1 is set without a cover and its bottom is inclined, and the lowest part of the bottom is provided with a discharge port 13. The clean water flushes the materials accumulated on the bottom surface of the material receiving box 1, and after converging, it is discharged from the discharge port 13;

[0027] The sewage sedimentation tank 4 has dimensions of 15m * 8m * 4m. The sewage sedimentation tank 4 is connected to the discharge port 13 through the first conveying pipeline 3. The mixture of clean water and materials is transported through the first conveying pipeline 3 and then flows into the sewage sedimentation tank 4. The sewage sedimentation tank 4 is provided with an overflow port 42 at a height of 2.8m. The clean water generated by the sewage sedimentation tank 4 overflows through the overflow port 42;

[0028] The clean water tank 5 has dimensions of 15m * 8m * 3.2m. The clean water tank 5 is located on one side of the sewage sedimentation tank 4 and is connected to the overflow port 42 and is used to store the clean water generated by the sewage sedimentation tank 4. The clean water tank 5 is connected to the nozzle 96 through the return pipeline 9 for the nozzle 96 to spray the clean water, recycling the clean water to achieve automatic cleaning.

[0029] In an embodiment of the present utility model, the material receiving box 1 is set as a rectangular water tank. The bottom of the water tank is provided with a first inclined surface 11 and a second inclined surface 12. The inclination angles of the first inclined surface 11 and the second inclined surface 12 are between 15 - 30°. The first inclined surface 11 and the second inclined surface 12 are distributed along the conveying direction of the belt conveyor, and the first inclined surface 11 and the second inclined surface 12 are connected into a "V" - shaped structure. The discharge port 13 is arranged at the lowest part of the "V" - shaped structure so that the clean water can flush the accumulated materials into the discharge port 13.

[0030] In an embodiment of the present utility model, referring to Figure 1 As shown, in order to facilitate receiving the mixture, a first flared mouth 31 is arranged directly below the discharge port 13. The first flared mouth 31 is set upright, and being set upright means that the upper part of the first flared mouth 31 is larger than the lower part. A second flared mouth 32 is arranged directly above the sewage sedimentation tank 4. The second flared mouth 32 is set upside - down, and being set upside - down means that the upper part of the second flared mouth 32 is smaller than the lower part. The first flared mouth 31 and the second flared mouth 32 are connected through the first conveying pipeline 3. The mixture falls from the discharge port 13 into the first flared mouth 31 and then flows into the sewage sedimentation tank 4 from the second flared mouth 32 through the first conveying pipeline 3.

[0031] In an embodiment of the present utility model, referring to Figure 1As shown, the sewage sedimentation tank 4 is also provided with a dredging port 41 at a height of 1.6 m. The dredging port 41 is normally in a closed state and is set lower than the overflow port 42. When it is necessary to clean the materials in the sewage sedimentation tank 4, the dredging port 41 is opened.

[0032] In an embodiment of the present invention, referring to Figure 1 As shown, in order to prevent solid particles from entering the clear water tank 5, the overflow port 42 is provided with a filter screen 43, and the filter screen 43 filters the solid particles in the mixture; one end of the reflux pipeline 9 communicating with the clear water tank 5 is provided with a filter screen 91 for further filtering out the solid particles in the clear water tank 5 to prevent the nozzle 96 from being blocked.

[0033] In an embodiment of the present invention, referring to Figure 1 As shown, since the clear water in the clear water tank 5 will evaporate, the clear water tank 5 is provided with a liquid level gauge 8, and the liquid level gauge 8 feeds back the water volume in the clear water tank 5 in real time so as to supplement clear water into the clear water tank 5 to ensure normal water supply.

[0034] In an embodiment of the present invention, referring to Figure 1 As shown, it further includes a water storage tank connected to the reflux pipeline 9 through a second conveying pipeline 61. The water storage tank is arranged in the water pump house 6. The water pump house 6 is also provided with a first water pump, a motor, etc. When the liquid level gauge 8 detects that the water volume in the clear water tank 5 is insufficient, the first water pump is used to boost the pressure to convey the clear water in the water storage tank through the second conveying pipeline 61 and the reflux pipeline 9, and finally convey it into the clear water tank 5 for water replenishment. The second water conveying pipe is provided with a fourth valve 63.

[0035] In an embodiment of the present invention, referring to Figure 1 As shown, the reflux pipeline 9 is sequentially provided with a first valve 92, a second water pump 93, a second valve 94 and a third valve 95 from the end communicating with the clear water tank 5. The second water pump 93 is used for boosting the pressure to convey the clear water in the clear water tank 5 to the nozzle 96 for spraying. Among them, the second conveying pipeline 61 is connected between the second valve 94 and the third valve 95.

[0036] In an embodiment of the present invention, referring to Figure 1 As shown, it further includes a PLC program control module 7 and a computer 71. The PLC program control module 7 is electrically connected to the liquid level gauge 8, the first water pump and the second water pump 93, and automatically completes operations such as cleaning and water replenishment under the control of the PLC program control module 7.

[0037] In an embodiment of the present invention, referring to Figure 1 As shown, a plurality of the nozzles 96 are uniformly arranged around the edge of the water tank, and the distance between adjacent nozzles 96 is 25-40 cm.

[0038] In an embodiment of the present utility model, with reference to Figure 1 as shown, in order to further improve the automation of the material cleaning device, it further includes a vision detection camera electrically connected to the PLC program control module 7. The vision detection camera is used to detect the volume of the accumulated material in the material receiving box. When the vision detection camera detects that the material accumulated in the material receiving box 1 exceeds a certain amount, the PLC program control module 7 controls the nozzle 96 to spray clean water to clean the accumulated material in time.

[0039] The working principle of the automatic material cleaning device of the belt conveyor of the present utility model is as follows:

[0040] During the process of the belt conveyor transporting materials, the materials scattered from the conveyor continuously fall into the material receiving box 1. When the material in the material receiving box 1 accumulates to a certain extent, the nozzle 96 automatically sprays clean water to flush the materials in the material receiving box 1 into the discharge port 13 and flow into the sewage sedimentation tank 4. The fixed granular materials continuously settle to the bottom in the sewage sedimentation tank 4, and the sewage is filtered into clean water through the filter screen 43 and flows into the clean water tank 5 from the overflow port 42 for storage. At the same time, the clean water in the clean water tank 5 is pressurized and continuously transported to the nozzle 96 for spraying, repeating in a cycle to achieve automatic material cleaning. When the liquid level gauge 8 detects that the water volume in the clean water tank 5 drops to a certain height, the PLC program control module 7 controls the first water pump in the water pump house 6 to transport the clean water in the water storage tank to the clean water tank 5 to ensure the normal water supply of the clean water tank 5.

[0041] Obviously, the above embodiments are merely examples for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present utility model.

Claims

1. An automatic material clearing device for a belt conveyor, which is applied to a belt conveyor, characterized in that: include, A material receiving box is arranged directly below the belt conveyor, the material receiving box is provided with a nozzle, the nozzle sprays clean water, the material receiving box is arranged without a cover and its bottom is arranged obliquely, and a discharge port is arranged at the lowest point of the bottom; A sewage sedimentation tank, which is connected to the discharge port via a first delivery pipeline, and the sewage sedimentation tank is provided with an overflow port; A clean water tank is connected to the overflow port and is used to store the clean water produced by the sewage sedimentation tank. The clean water tank is connected to the nozzle through a return pipe so that the nozzle can spray out the clean water.

2. The automatic material clearing device for a belt conveyor according to claim 1, characterized in that: The receiving box is configured as a water trough, and a first slope and a second slope are provided at the bottom of the water trough. The first slope and the second slope are distributed along the conveying direction of the belt conveyor, and the first slope and the second slope are connected to form a "V"-shaped structure, and the discharge port is arranged at the lowest point of the "V"-shaped structure.

3. The automatic material clearing device for a belt conveyor according to claim 1, characterized in that: A first bell mouth is arranged directly below the discharge port, and the first bell mouth is arranged upright; a second bell mouth is arranged directly above the sewage sedimentation tank, and the second bell mouth is arranged inverted, and the first bell mouth and the second bell mouth are connected through the first conveying pipe.

4. The automatic material clearing device for a belt conveyor according to claim 1, characterized in that: The sewage sedimentation tank is also provided with a silt removal port, and the silt removal port is arranged lower than the overflow port.

5. The automatic material clearing device for a belt conveyor according to claim 1, characterized in that: The overflow port is provided with a filter, and one end of the return pipe connected to the clean water tank is provided with a filter.

6. The automatic material clearing device for a belt conveyor according to claim 1, characterized in that: The clean water tank is provided with a liquid level meter.

7. The automatic material clearing device for a belt conveyor according to claim 6, characterized in that: It also includes a water storage tank connected to the return pipe through a second delivery pipe, and uses a first water pump to deliver clean water in the water storage tank to the return pipe.

8. The automatic material clearing device for a belt conveyor according to claim 7, characterized in that: The return pipe is provided with a first valve, a second water pump, a second valve and a third valve in sequence from one end connected to the clean water tank, wherein the second delivery pipe is connected between the second valve and the third valve.

9. The automatic material clearing device for a belt conveyor according to claim 8, characterized in that: It also includes a PLC program control module, which is electrically connected to the liquid level meter, the first water pump and the second water pump.

10. The automatic material clearing device for a belt conveyor according to claim 2, characterized in that: A plurality of the spray heads are evenly arranged around the edge of the water tank.

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