Coal washing device capable of accurately adjusting washing direction

Abstract

The invention relates to a coal washing and selecting device capable of accurately adjusting the washing direction, and belongs to the technical field of coal washing and processing equipment. Comprising a desliming screen and an adjustable flushing device installed above the desliming screen, and further comprises an upper-stage transfer conveying belt and a lower-stage transfer conveying belt, the discharging end of the upper-stage transfer conveying belt extends to a feeding port of a coal falling channel, and the coal falling channel receives discharged materials of the upper-stage transfer conveying belt; a plurality of first-level washing mechanisms are installed on the outer wall of the coal falling channel, the feeding end of the lower-level transfer conveying belt extends to the position below the discharging end of the coal falling channel, the lower-level transfer conveying belt is used for receiving discharged materials of the coal falling channel, and the discharging end of the lower-level transfer conveying belt is connected with a desliming screen. And an adjustable flushing device is arranged above the desliming screen. The coal washing and impurity removing device has the following beneficial effects that the coal washing and impurity removing effect of the device is improved, and the production quality of coal is guaranteed.

Description

Technical Field

[0001] The invention relates to a coal washing device capable of accurately adjusting the flushing direction, belonging to the technical field of coal washing and processing equipment. Background Art

[0002] Coal washing generally refers to the process of removing impurities or other impurities from coal. Existing coal washing equipment flushes the coal by setting nozzles and then sorts the coal.

[0003] Patent No. 202222097647.3 discloses a coal washing and processing equipment including a base, the top of the base is respectively fixedly connected with a cleaning box, a conveyor belt and a sorting box, the top of the cleaning box is fixedly connected with a feed hopper, a washing plate is fixedly connected to the inner wall of one side of the cleaning box, the washing plate is provided with filter holes, and a discharge port is provided on the other side of the cleaning box, one side of the washing plate passes through the discharge port and extends to above the top of the conveyor belt, one side of the cleaning box is fixedly connected with a water tank, the top of the water tank is fixedly connected with a first water pump, the input end of the first water pump extends into the water tank, and the output end of the first water pump extends to the cleaning box and is fixedly connected with a nozzle.

[0004] Current technical considerations are not comprehensive and have the following drawbacks: existing devices often use a fixed-direction flushing method when flushing and screening coal. However, fixed-direction flushing is not convenient for targeted removal of coal impurities with strong adhesion, thereby reducing the coal flushing and impurity removal effect of the device and affecting the production quality of coal.

[0005] In order to solve one of the above problems, a coal washing device capable of accurately adjusting the flushing direction is urgently needed. Summary of the invention

[0006] In view of the above deficiencies in the prior art, the technical problem to be solved by the present invention is: how to make the direction adjustment of the spray head more convenient and accurate, so as to facilitate the flushing and removal of coal impurities with strong adhesion, improve the coal flushing and impurity removal effect of the device, and ensure the production quality of coal. To this end, a coal washing device with precise adjustment of the flushing direction is provided.

[0007] The coal washing device with accurately adjustable flushing direction described in the present invention comprises a desludging screen and an adjustable flushing device installed above the desludging screen, and is characterized in that it also comprises an upper transfer conveyor belt and a lower transfer conveyor belt, the discharge end of the upper transfer conveyor belt extends to the feed port of the coal dropping channel, the coal dropping channel receives the discharge of the upper transfer conveyor belt, a plurality of first-level flushing mechanisms are installed on the outer wall of the coal dropping channel, the feed end of the lower transfer conveyor belt extends to below the discharge end of the coal dropping channel, the lower transfer conveyor belt is used to receive the discharge of the coal dropping channel, the discharge end of the lower transfer conveyor belt is connected to the desludging screen, and an adjustable flushing device is installed above the desludging screen.

[0008] Preferably, the adjustable flushing device includes a nozzle assembly and a swing arm, the nozzle assembly is mounted on a mounting frame, the upper end of the swing arm is hinged to the mounting frame, the bottom end of the swing arm is connected to the outer wall of the demud screen, an angle adjustment mechanism A for adjusting the angle between the mounting frame and the swing arm is provided between the swing arm and the mounting frame, and an angle adjustment mechanism B for adjusting the angle between the swing arm and the plane is installed between the swing arm and the demud screen.

[0009] Preferably, the angle adjustment mechanism A and the angle adjustment mechanism B are both cylinders with corresponding solenoid valves controlling extension and retraction. The adjustment angle of the swing arm relative to the demud screen is set to ±25 degrees, and the adjustment angle of the swing arm relative to the mounting frame is set to ±25 degrees.

[0010] Preferably, the coal dropping channel is a rectangular tubular structure, and a plurality of groups of primary flushing mechanisms are respectively fixed on the front and rear side plates opposite to each other of the coal dropping channel.

[0011] Preferably, the included angle between the spray angle of the primary flushing mechanism and the coal falling channel is set to 45-90 degrees.

[0012] Preferably, the nozzle assembly includes a first water spray pipe and a second water spray pipe which are parallel to each other, and a plurality of groups of nozzle bodies are respectively arranged at intervals along the length direction of the first water spray pipe and the second water spray pipe, a first rotating seat is installed at the end of the first water spray pipe, and the first rotating seat is rotatably installed on the mounting frame, a second rotating seat is installed at the end of the second water spray pipe, and the second rotating seat is rotatably installed on the mounting frame, a driving motor is installed on the mounting frame, a driving pulley A and a driving pulley B are installed on the power output shaft of the driving motor, a driven pulley A and a driven pulley B are respectively installed on the second rotating seat and the driving motor, a driving belt A is wound around the driven pulley A and the driving pulley A, and a driving belt B is wound around the driven pulley B and the driving pulley B.

[0013] Preferably, the first water spray pipe and the second water spray pipe are external water supply pipes.

[0014] Preferably, the rotation angles of the first water spray pipe and the second water spray pipe are adjustable between 0 and 120 degrees.

[0015] Preferably, when the nozzle body is facing vertically downward, the nozzle body is in a middle position of angle adjustment.

[0016] Working process: The coal blocks to be washed are transferred to the coal dropping channel via the upper transfer conveyor belt, and are first washed once by the primary flushing mechanism in the coal dropping channel. The washed coal blocks are transferred to the lower transfer conveyor belt, and then transferred to the desludging screen via the lower transfer conveyor belt. The coal blocks in the desludging screen are washed again by the adjustable flushing device. The adjustable flushing device can use the angle adjustment mechanism A and the angle adjustment mechanism B to adjust the overall height and tilt angle of the mounting frame; The first water spray pipe and the second water spray pipe can use a driving motor as a driving force, and simultaneously drive the first water spray pipe and the second water spray pipe to rotate, so that the angle of the nozzle body relative to the vertical plane can be adjusted.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The coal washing device capable of precisely adjusting the flushing direction described in the present invention enables workers to adjust the direction of the spray head more conveniently and precisely according to actual conditions on site, thereby facilitating flushing and removing coal impurities with strong adhesion, improving the coal flushing and impurity removal effect of the device, and ensuring the production quality of coal.

[0018] The coal washing device capable of accurately adjusting the flushing direction described in the present invention can effectively reduce the amount of foamy coal adhesion, while effectively reducing the site area occupied, reducing the amount of coal washing chemicals added and reducing water consumption. Through the integrated coal washing process, it can effectively improve the coal washing efficiency, reduce energy loss, reduce energy waste, reduce labor costs and coal washing costs, and has high popularization potential.

[0019] The coal washing device capable of precisely adjusting the flushing direction described in the present invention can filter the wastewater discharged from the desludging screen to the water tank, thereby separating the impurities in the water on the left side of the water tank. By connecting the input end of the water pump with the water tank, the water pump can again transport the filtered water inside the water tank to the spray head through the water pipe, thereby realizing the recycling of water sources and avoiding wasting a large amount of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0021] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the external structure of the adjustable flushing device of the present invention; In the figure: 1, desludging screen 2, adjustable flushing device 3, upper transfer conveyor belt 4, coal dropping channel 5, primary flushing mechanism 6, lower transfer conveyor belt 7, mounting frame 8, swing arm 9, angle adjustment mechanism A 10, angle adjustment mechanism B 11, first water spray pipe 12, second water spray pipe 13, nozzle body 14, first rotating seat 15, second rotating seat 16, drive motor 17, drive pulley A 18, drive belt A 19, drive belt B. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings: The present invention is further described below by means of specific embodiments, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0023] Embodiment 1, as Figure 1-2 As shown, the coal washing device capable of accurately adjusting the flushing direction comprises a desludging screen 1 and an adjustable flushing device 2 installed above the desludging screen 1, and is characterized in that it also comprises an upper transfer conveyor belt 3 and a lower transfer conveyor belt 6, the discharge end of the upper transfer conveyor belt 3 extends to the feed port of the coal dropping channel 4, the coal dropping channel 4 receives the discharge of the upper transfer conveyor belt 3, and a plurality of first-level flushing mechanisms 5 are installed on the outer wall of the coal dropping channel 4, the feed end of the lower transfer conveyor belt 6 extends to below the discharge end of the coal dropping channel 4, the lower transfer conveyor belt 6 is used to receive the discharge of the coal dropping channel 4, the discharge end of the lower transfer conveyor belt 6 is connected to the desludging screen 1, and an adjustable flushing device 2 is installed above the desludging screen 1.

[0024] Embodiment 2, as Figure 1-2As shown, the coal washing device capable of accurately adjusting the flushing direction comprises a desludging screen 1 and an adjustable flushing device 2 installed above the desludging screen 1, and is characterized in that it also comprises an upper transfer conveyor belt 3 and a lower transfer conveyor belt 6, the discharge end of the upper transfer conveyor belt 3 extends to the feed port of the coal dropping channel 4, the coal dropping channel 4 receives the discharge of the upper transfer conveyor belt 3, and a plurality of first-level flushing mechanisms 5 are installed on the outer wall of the coal dropping channel 4, the feed end of the lower transfer conveyor belt 6 extends to below the discharge end of the coal dropping channel 4, the lower transfer conveyor belt 6 is used to receive the discharge of the coal dropping channel 4, the discharge end of the lower transfer conveyor belt 6 is connected to the desludging screen 1, and an adjustable flushing device 2 is installed above the desludging screen 1.

[0025] Furthermore, the adjustable flushing device 2 includes a nozzle assembly and a swing arm 8, the nozzle assembly is mounted on a mounting frame 7, the upper end of the swing arm 8 is hinged to the mounting frame 7, the bottom end of the swing arm 8 is connected to the outer wall of the demud screen 1, an angle adjustment mechanism A9 for adjusting the angle between the mounting frame 7 and the swing arm 8 is provided between the swing arm 8 and the mounting frame 7, and an angle adjustment mechanism B10 for adjusting the angle between the swing arm 8 and the plane is installed between the swing arm 8 and the demud screen 1.

[0026] Furthermore, the angle adjustment mechanism A9 and the angle adjustment mechanism B10 are both cylinders with corresponding solenoid valves controlling extension and retraction. The adjustment angle of the swing arm 8 relative to the demuding screen 1 is set to ±25 degrees, and the adjustment angle of the swing arm 8 relative to the mounting frame 7 is set to ±25 degrees.

[0027] Furthermore, the coal dropping channel 4 is a rectangular tubular structure, and a plurality of first-level flushing mechanisms 5 are respectively fixed on the front and rear side plates opposite to each other of the coal dropping channel 4 .

[0028] Furthermore, the included angle between the spraying angle of the primary flushing mechanism 5 and the coal falling channel 4 is set to be 45-90 degrees.

[0029] Further, the nozzle assembly includes a first water spray pipe 11 and a second water spray pipe 12 which are parallel to each other, and a plurality of groups of nozzle bodies 13 are respectively arranged at intervals along the length direction of the first water spray pipe 11 and the second water spray pipe 12, a first rotating seat 14 is installed at the end of the first water spray pipe 11, and the first rotating seat 14 is rotatably installed on the mounting frame 7, a second rotating seat 15 is installed at the end of the second water spray pipe 12, and the second rotating seat 15 is rotatably installed on the mounting frame 7, a driving motor 16 is installed on the mounting frame 7, a driving pulley A17 and a driving pulley B are installed on the power output shaft of the driving motor 16, a driven pulley A and a driven pulley B are respectively installed on the second rotating seat 15 and the driving motor 16, a driving belt A18 is wound around the driven pulley A and the driving pulley A17, and a driving belt B19 is wound around the driven pulley B and the driving pulley B.

[0030] Furthermore, the first water spray pipe 11 and the second water spray pipe 12 are external water supply pipes.

[0031] Furthermore, the rotation angles of the first water spray pipe 11 and the second water spray pipe 12 are adjustable within a range of 0-120 degrees.

[0032] Furthermore, when the nozzle body 13 is facing vertically downward, the nozzle body 13 is in a middle position of angle adjustment.

[0033] Working steps: the coal blocks to be washed are transferred to the coal dropping channel 4 via the upper transfer conveyor belt 3, and are firstly washed once by the primary washing mechanism 5 in the coal dropping channel 4. The washed coal blocks are transferred to the lower transfer conveyor belt 6, and are transferred to the desludging screen 1 via the lower transfer conveyor belt 6. The coal blocks in the desludging screen 1 are washed again by the adjustable washing device 2. The adjustable flushing device 2 can use the angle adjustment mechanism A9 and the angle adjustment mechanism B10 to adjust the overall height and tilt angle of the mounting frame 7; The first water spray pipe 11 and the second water spray pipe 12 can use a driving motor 16 as a driving force to drive the first water spray pipe 11 and the second water spray pipe 12 to rotate, so that the angle of the nozzle body 13 relative to the vertical plane can be adjusted.

[0034] The coal washing device capable of precisely adjusting the flushing direction described in the present invention enables workers to adjust the direction of the spray head more conveniently and precisely according to actual conditions on site, thereby facilitating flushing and removing coal impurities with strong adhesion, improving the coal flushing and impurity removal effect of the device, and ensuring the production quality of coal.

[0035] The coal washing device capable of accurately adjusting the flushing direction described in the present invention can effectively reduce the amount of foamy coal adhesion, while effectively reducing the site area occupied, reducing the amount of coal washing chemicals added and reducing water consumption. Through the integrated coal washing process, it can effectively improve the coal washing efficiency, reduce energy loss, reduce energy waste, reduce labor costs and coal washing costs, and has high popularization potential.

[0036] The coal washing device capable of precisely adjusting the flushing direction described in the present invention can filter the wastewater discharged from the desludging screen to the water tank, thereby separating the impurities in the water on the left side of the water tank. By connecting the input end of the water pump with the water tank, the water pump can again transport the filtered water inside the water tank to the spray head through the water pipe, thereby realizing the recycling of water sources and avoiding wasting a large amount of water resources.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

[0038] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A coal washing device capable of accurately adjusting the flushing direction, comprising a desludging screen and an adjustable flushing device installed above the desludging screen, characterized in that: It also includes an upper transfer conveyor belt and a lower transfer conveyor belt, the discharge end of the upper transfer conveyor belt extends to the feed port of the coal dropping channel, the coal dropping channel receives the discharge of the upper transfer conveyor belt, a plurality of first-level flushing mechanisms are installed on the outer wall of the coal dropping channel, the feed end of the lower transfer conveyor belt extends to below the discharge end of the coal dropping channel, the lower transfer conveyor belt is used to receive the discharge of the coal dropping channel, the discharge end of the lower transfer conveyor belt is connected to a demuding screen, and an adjustable flushing device is installed above the demuding screen.

2. The coal washing device capable of accurately adjusting the flushing direction according to claim 1 is characterized in that: The adjustable flushing device includes a nozzle assembly and a swing arm, the nozzle assembly is installed on a mounting frame, the upper end of the swing arm is hinged to the mounting frame, the bottom end of the swing arm is connected to the outer wall of the demud screen, an angle adjustment mechanism A for adjusting the angle between the mounting frame and the swing arm is provided between the swing arm and the mounting frame, and an angle adjustment mechanism B for adjusting the angle between the swing arm and the plane is installed between the swing arm and the demud screen.

3. The coal washing device capable of accurately adjusting the flushing direction according to claim 2 is characterized in that: The angle adjustment mechanism A and the angle adjustment mechanism B are both cylinders, and have corresponding solenoid valves to control extension and retraction. The adjustment angle of the swing arm relative to the desludging screen is set to ±25 degrees, and the adjustment angle of the swing arm relative to the mounting frame is set to ±25 degrees.

4. The coal washing device capable of accurately adjusting the flushing direction according to claim 3 is characterized in that: The coal dropping channel is a rectangular tubular structure, and a plurality of first-level flushing mechanisms are respectively fixed on the front and rear side plates opposite to each other of the coal dropping channel.

5. The coal washing device capable of accurately adjusting the flushing direction according to claim 4 is characterized in that: The included angle between the spraying angle of the first-level flushing mechanism and the coal falling channel is set to 45-90 degrees.

6. The coal washing device capable of accurately adjusting the flushing direction according to claim 5 is characterized in that: The nozzle assembly includes a first water spray pipe and a second water spray pipe parallel to each other, and a plurality of groups of nozzle bodies are spaced apart along the length direction of the first water spray pipe and the second water spray pipe, a first rotating seat is installed at the end of the first water spray pipe, and the first rotating seat is rotatably installed on the mounting frame, a second rotating seat is installed at the end of the second water spray pipe, and the second rotating seat is rotatably installed on the mounting frame, a driving motor is installed on the mounting frame, a driving pulley A and a driving pulley B are installed on the power output shaft of the driving motor, a driven pulley A and a driven pulley B are installed on the second rotating seat and the driving motor respectively, a driving belt A is wound around the driven pulley A and the driving pulley A, and a driving belt B is wound around the driven pulley B and the driving pulley B.

7. The coal washing device capable of accurately adjusting the flushing direction according to claim 6 is characterized in that: The first water spray pipe and the second water spray pipe are external water supply pipes.

8. The coal washing device capable of accurately adjusting the flushing direction according to claim 7 is characterized in that: The rotation angles of the first water spray pipe and the second water spray pipe are adjustable from 0 to 120 degrees.

9. The coal washing device capable of accurately adjusting the flushing direction according to claim 8, characterized in that: When the nozzle body is facing vertically downward, the nozzle body is in a middle position of angle adjustment.

10. The coal washing device capable of accurately adjusting the flushing direction according to claim 9, characterized in that: The coal blocks to be washed are transferred to the coal dropping channel via the upper transfer conveyor belt, and are washed once by the primary flushing mechanism in the coal dropping channel. The washed coal blocks are transferred to the lower transfer conveyor belt, and are transferred to the desludging screen via the lower transfer conveyor belt. The coal blocks in the desludging screen are washed again by the adjustable flushing device. The adjustable flushing device can use the angle adjustment mechanism A and the angle adjustment mechanism B to adjust the overall height and tilt angle of the mounting frame; The first water spray pipe and the second water spray pipe can use a driving motor as a driving force, and simultaneously drive the first water spray pipe and the second water spray pipe to rotate, so that the angle of the nozzle body relative to the vertical plane can be adjusted.

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