Coal washing chute based on multi-coal-quality washing switching

Abstract

A coal washing chute based on multi-coal-quality washing switching comprises a medium switching assembly, a power distribution controller and a fixed supporting device, and is characterized in that the medium switching assembly comprises a water medium supply pipe, a dense medium supply pipe, a three-way electromagnetic valve, a medium output pipe, a circulating pump I and a circulating pump II; the modularized power distribution controller stores multi-coal-quality characteristic data information, compares the multi-coal-quality characteristic data information with raw coal data, adjusts dense medium density on line and automatically switches water media or dense media for separation, and the chute assembly comprises a five-way bifurcated chute with a U-shaped plate arranged at the front end and protected by a ceramic lining plate, an electric inserting plate gate and a reinforcing rib. An observation opening and a transparent cover plate are arranged on the top surface of the five-way bifurcated chute, a falling plate and a vibrator are arranged in the non-desliming branch channel, and an injection pipe is arranged in the branch channel; the problems that a medium switching assembly cannot be used, a processor stored with multiple coal quality characteristic data cannot be used, a chute assembly cannot be used, and the combination of a falling plate and a vibrator cannot be used are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal washing processing technical field especially relates to a coal washing chute based on many coal quality cleaning switching. BACKGROUND

[0002] Coal as important energy and industrial raw material, natural contain gangue, sulfur content, ash content and other impurities, direct combustion or use can reduce efficiency and cause environmental pollution, therefore, coal washing becomes the core link of coal processing, coal washing chute is the key equipment in coal washing process, with the progress and development of science and technology, coal washing chute is towards automation, processing complex coal quality, more environmental protection, more economical direction development.But, the coal washing chute of prior art, cannot do to use medium switching assembly, cannot according to the type of coal quality need not stop machine, automatic control, real-time online switching use water medium or heavy medium, cannot realize fast automatic adjustment heavy medium suitable density, cannot do to use modular design's power distribution controller and store the processor containing multiple coal quality characteristic data information storage card, cannot do to compare the collected raw coal data with the multiple coal quality characteristic data information in the storage card, cannot do to use chute assembly, cannot under the control of the processor, according to the type of coal quality, automatic switching raw coal desliming and not desliming separation process, cannot do to use the combination of drop plate and vibrator, cannot in the coal washing process, through the adjustment vibration mode to the attached sticky slime self-cleaning, cannot effectively prevent the occurrence of the production jam.

[0003] The invention patent with the patent number ZL202322479839.5 discloses a coal washing cyclone outlet chute, which comprises a cyclone and a material collecting bin arranged on the upper and lower parts of an inspection platform respectively, the bottom outlet of the cyclone is connected with the inlet of the material collecting bin through a chute, a square through groove is arranged in the chute, an observation window for observing the jamming condition is opened on the chute, and a rotating closing assembly is arranged on the upper part of the observation window. The square chute is used to replace the chute at the discharge port of the cyclone, so that the jamming condition caused by the small cross section is fundamentally solved, the passing property of the coal in the chute is greatly ensured, and the jamming condition is reduced; the observation port is arranged on the upper part of the square chute, and the closing assembly is installed, so that a series of problems occurring when the personnel observe the jamming condition are fundamentally solved, the life safety of the personnel is better ensured, the process time is greatly shortened, the production capacity of the factory is better improved, and the unnecessary waste of manpower and material resources is reduced.

[0004] The patent No. ZL202321710543.3 discloses a "double chute flip plate structure for coal washing", which comprises a main chute and two branch chutes arranged at the end of the main chute, the two branch chutes are arranged at an angle; a flow distribution plate is rotatably arranged at the converging position of the front ends of the two branch chutes, and a flow guide plate is movably arranged on each side wall of the main chute, each flow guide plate is located on the extension line of the side wall of the corresponding branch chute after being butted against the flow distribution plate; the utility model can provide favorable conditions for the smooth sliding of materials to the maximum extent by reducing the occurrence of inflection points, ensure work efficiency and reduce labor intensity. SUMMARY

[0005] To solve the above technical problems, the utility model provides a kind of coal washing chute based on multiple coal quality cleaning switching, be provided with medium switching component, distribution controller, chute component, drop plate, vibrator, three-way electromagnetic valve and five-way electromagnetic valve etc., it is realized that according to the type of coal quality, without stopping, automatic control, real-time online switching uses water medium or heavy medium, fast automatic adjustment heavy medium suitable density, the coal data collected and the multiple coal quality characteristic data information in memory card are compared, under the control of processor, automatically switch raw coal desliming and not desliming separation process, the adhered sticky slime is cleaned by adjusting vibration mode, effectively prevent the occurrence of jamming in production, effectively solve the above technical problems.

[0006] To achieve the above purpose, the technical scheme adopted by the utility model to solve its technical problems is:

[0007] The coal washing chute based on multiple coal quality cleaning switching, including medium switching component, distribution controller and fixed support device, characterized by,

[0008] The medium switching component includes water medium supply pipe, heavy medium supply pipe, three-way electromagnetic valve, medium output pipe, circulating pump I and circulating pump II, one end of the water medium supply pipe, heavy medium supply pipe and medium output pipe is connected with the three interfaces of three-way electromagnetic valve in communication, the other end of the water medium supply pipe is connected with the liquid outlet of circulating pump I in communication, the other end of the heavy medium supply pipe is connected with the liquid outlet of circulating pump II in communication, the liquid suction port of circulating pump I is connected with the water outlet of water container, the liquid suction port of circulating pump II is connected with the discharge port of medium mixing bucket, three-way electromagnetic valve, circulating pump I, circulating pump II and medium mixing bucket are connected with distribution controller by wire respectively;

[0009] The power distribution controller is arranged in a modular structure, and the power distribution controller is internally provided with an ash content instrument, a sulfur content instrument, a Y-ray density processing assembly, a processor and a liquid crystal touch screen.

[0010] The chute assembly comprises a five-way branched chute, a plug-in gate and a reinforcing rib, the channel of the five-way branched chute is arranged in a hollow square structure, the five-way branched chute is arranged in a downward inclined structure along the conveying direction, the five-way branched chute comprises a main channel, a branch channel I, a branch channel II, a branch channel III and a branch channel IV, the five-way branched chute is arranged in an integral molding structure, the front end of the branch channel I and the front end of the branch channel II are connected to the rear end of the main channel in a smooth transition structure, the main channel, the branch channel I and the branch channel II constitute a Y-shaped structure, the branch channel III and the branch channel IV are arranged in an upper and lower two-segment corner structure, the front end of the upper segment of the branch channel III is connected to the inner side of the branch channel I (22) in a smooth transition structure, the front end of the upper segment of the branch channel IV is connected to the inner side of the branch channel II in a smooth transition structure, the lower segment of the branch channel III and the lower segment of the branch channel IV are arranged vertically and in parallel, the inner diameters of the branch channel I, the branch channel II, the branch channel III and the branch channel IV are equal;

[0011] The branch channel I, the branch channel II, the branch channel III and the branch channel IV are provided with plug-in gates along the cross-sectional direction, the plug-in gates are arranged as electric gates, the plug-in gates are connected to the power distribution controller through wires, the plug-in gates are arranged on the lower side of the interface between the branch channel I and the branch channel III and the lower side of the interface between the branch channel II and the branch channel IV, respectively, the rear ends of the branch channel I, the branch channel II, the branch channel III and the branch channel IV are connected to predetermined storage devices, respectively.

[0012] The front end of the main channel is fixedly provided with a U-shaped plate, the shape of the U-shaped plate matches the shape of the front end port of the main channel, the inclination angle of the U-shaped plate is consistent with the inclination angle of the main channel, a predetermined number of reinforcing ribs are fixedly arranged on the outer wall of the five-way branched chute along the cross-sectional direction, and a fixed support device is fixedly arranged at a predetermined position of the five-way branched chute.

[0013] The bottom surface of the branch channel III and the branch channel IV is respectively provided with a preset number of drop plates at a predetermined angle, the width of the drop plate is equal to the width of the channel in the branch channel III, the length of the drop plate is less than the height of the channel in the branch channel III, the bottom surface of the drop plate is fixedly provided with a vibrator, the vibrator is connected with the power distribution controller through an electric wire, the drop plate and the five-way branch chute are vibrated by the vibrator receiving the instruction of the power distribution controller, and the purpose of automatically cleaning the adhered raw coal is achieved.

[0014] The four inner surfaces of the five-way branch chute and the U-shaped plate are all fixedly provided with ceramic lining plates.

[0015] The U-shaped plate is provided with an ash content sensor, a sulfur content sensor and a Y-ray detector, one side of the U-shaped plate is provided with a Y-ray emitter, and the emission direction of the Y-ray emitter is towards the Y-ray detector.

[0016] A preset number of observation openings are formed in the preset positions of the top surface of the five-way branch chute, and detachable transparent cover plates are flange-connected to the observation openings, so that the observation openings can be used for observation and maintenance.

[0017] The inner walls of the upper bottom surfaces of the branch channel I, the branch channel II, the branch channel III and the branch channel IV are all fixedly provided with spray pipes, a preset number of spray holes are formed in the spray pipes towards the raw coal, the spray pipes are closed at the ends, and the spray pipes are in sealed communication with the medium output pipes through five-way electromagnetic valves at the front ends.

[0018] The chute assembly is made of high-chromium cast iron.

[0019] The utility model discloses the beneficial effect is:

[0020] The utility model discloses the medium switching assembly and with its corresponding water container, mix medium barrel and power distribution controller etc., can reach according to the type of coal quality, need not stop, automatic control, real -time on -line switching use water medium or heavy medium, fast automatic adjustment heavy medium suitable density, effectively solved the problem that cannot use medium switching assembly, cannot according to the type of coal quality need not stop, automatic control, real -time on -line switching use water medium or heavy medium, cannot realize fast automatic adjustment heavy medium suitable density.

[0021] The utility model discloses the power distribution controller and with its corresponding ash content appearance, sulfur content appearance, density processing component and treater etc., can reach to the coal data of gathering and the multiple coal quality characteristic data information in the storage card are compared, effectively solved the problem that cannot use the modular design's power distribution controller and the treater that has stored the multiple coal quality characteristic data information storage card, cannot reach to the coal data of gathering and the multiple coal quality characteristic data information in the storage card are compared.

[0022] The chute assembly, the five-way branched chute, the plug-in gate and the power distribution controller and the like corresponding thereto are arranged, so that under the control of the processor, the raw coal desliming and non-desliming separation process can be automatically switched according to the type of coal, and the problem that the chute assembly cannot be used, the raw coal desliming and non-desliming separation process cannot be automatically switched under the control of the processor according to the type of coal is solved.

[0023] The falling plate and the vibrator are arranged, and the five-way branched chute and the power distribution controller and the like corresponding thereto are arranged, so that the adhered sticky slime can be self-cleaned by adjusting the vibration, the blockage in production is effectively prevented, and the problem that the falling plate and the vibrator cannot be used in combination, the adhered sticky slime cannot be self-cleaned by adjusting the vibration in the coal washing process, and the blockage in production cannot be effectively prevented is solved. BRIEF DESCRIPTION OF DRAWINGS

[0024] BRIEF DESCRIPTION OF DRAWINGS Figure 1 It is a cross-sectional top view structure schematic diagram of the utility model;

[0025] BRIEF DESCRIPTION OF DRAWINGS Figure 2 It is a left view structure schematic diagram of the chute assembly of the utility model.

[0026] LEGEND:

[0027] 1. Medium switching assembly, 2. Power distribution controller, 3. Fixed support device, 4. Water medium supply pipe, 5. Heavy medium supply pipe, 6. Three-way electromagnetic valve, 7. Medium output pipe, 8. Circulating pump I, 9. Circulating pump II, 10. Water container, 11. Mixed medium bucket, 12. Ash content instrument, 13. Sulfur content instrument, 14. Density processing assembly, 15. Processor, 16. Liquid crystal touch screen, 17. Chute assembly, 18. Five-way branched chute, 19. Plug-in gate, 20. Reinforcing rib, 21. Main channel, 22. Branch channel I, 23. Branch channel II, 24. Branch channel III, 25. Branch channel IV, 26. U-shaped plate, 27. Falling plate, 28. Vibrator, 29. Ceramic lining plate, 30. Ash content sensor, 31. Sulfur content sensor, 32. Y-ray detector, 33. Y-ray emitter, 34. Observation port, 35. Transparent cover plate, 36. Injection pipe, 37. Injection hole, 38. Five-way electromagnetic valve. DETAILED DESCRIPTION

[0028] The utility model is further described in detail in combination with the embodiments, so that the public can better master the implementation method of the utility model, and the specific implementation scheme of the utility model is as follows: Figure 1 Figure 2

[0029] ​​The coal washing chute based on multi-coal quality cleaning switching comprises a medium switching assembly 1, a power distribution controller 2 and a fixed support device 3, characterized in that

[0030] The medium switching assembly 1 comprises a water medium supply pipe 4, a heavy medium supply pipe 5, a three-way electromagnetic valve 6, a medium output pipe 7, a circulating pump I 8 and a circulating pump II 9, one end of the water medium supply pipe 4, the heavy medium supply pipe 5 and the medium output pipe 7 is connected with three interfaces of the three-way electromagnetic valve 6 in communication, the other end of the water medium supply pipe 4 is connected with a liquid outlet of the circulating pump I 8 in communication, the other end of the heavy medium supply pipe 5 is connected with a liquid outlet of the circulating pump II 9 in communication, a liquid suction port of the circulating pump I 8 is connected with a water outlet of a water container 10, a liquid suction port of the circulating pump II 9 is connected with a discharge port of a medium mixing barrel 11 in communication, the three-way electromagnetic valve 6, the circulating pump I 8, the circulating pump II 9 and the medium mixing barrel 11 are connected with the power distribution controller 2 through wires respectively, the medium switching assembly 1 can automatically control the three-way electromagnetic valve 6, the circulating pump I 8, the circulating pump II 9 and the medium mixing barrel 11 according to the type of coal quality, without shutdown operation, and can switch water medium or heavy medium in real time online, and quickly and automatically adjust the suitable density of the heavy medium;

[0031] The power distribution controller 2 is arranged in a modular structure, the power distribution controller 2 is internally provided with an ash content instrument 12, a sulfur content instrument 13, a Y-ray density processing assembly 14, a processor 15 and a liquid crystal touch screen 16, the processor 15 internally stores a storage card containing multi-coal quality characteristic data information, the raw coal data collected by the ash content instrument 12, the sulfur content instrument 13 and the Y-ray density processing assembly 14 is compared with the multi-coal quality characteristic data information in the storage card, so as to achieve the purpose of quickly and online processing and adjusting the density of the heavy medium for separation and automatically switching the desliming and non-desliming separation processes, the processor 15 and the liquid crystal touch screen 16 are connected through a feeder line, the ash content instrument 12, the sulfur content instrument 13 and the Y-ray density processing assembly 14 are connected with the power distribution controller 2 through wires respectively.

[0032] Also includes chute assembly 17, the chute assembly 17 includes five branch chute 18, plug-in board gate 19 and reinforcing rib 20, the passage of the five branch chute 18 is arranged as a hollow square structure, the five branch chute 18 is arranged as a downward inclined structure along the conveying direction, the five branch chute 18 includes main channel 21, branch channel I 22, branch channel II 23, branch channel III 24 and branch channel IV 25, the five branch chute 18 is arranged as an integral structure, the front end of branch channel I 22 and the front end of branch channel II 23 are connected with the rear end of main channel 21 in a smooth transition structure, main channel 21, branch channel I 22 and branch channel II 23 constitute a Y-shaped structure, branch channel III 24 and branch channel IV 25 are arranged as an upper and lower two corner structure, the front end of branch channel III 24 upper segment is connected with the inner side of branch channel I 22 in a smooth transition structure, the front end of branch channel IV 25 upper segment is connected with the inner side of branch channel II 23 in a smooth transition structure, the lower segment of branch channel III 24 and the lower segment of branch channel IV 25 are arranged vertically, the inner diameters of branch channel I 22, branch channel II 23, branch channel III 24 and branch channel IV 25 are equal;

[0033] The branch channel I 22, branch channel II 23, branch channel III 24 and branch channel IV 25 are provided with plug-in board gate 19 along the cross-sectional direction, the plug-in board gate 19 is arranged as an electric gate, the plug-in board gate 19 is connected with the power distribution controller 2 through the wire, the plug-in board gate 19 is arranged at the lower side of the interface between branch channel I 22 and branch channel III 24 and the lower side of the interface between branch channel II 23 and branch channel IV 25 respectively, the rear end of branch channel I 22, branch channel II 23, branch channel III 24 and branch channel IV 25 is connected with the predetermined storage device respectively, the five branch chute can automatically control plug-in board gate 19 through processor 15, automatically switch branch channel according to the type of coal quality, and carry out raw coal desliming and non-desliming separation process;

[0034] The front end of main channel 21 is fixedly provided with U-shaped plate 26, the shape of U-shaped plate 26 matches the shape of the front end port of main channel 21, the inclination angle of U-shaped plate 26 is consistent with the inclination angle of main channel 21, a plurality of reinforcing ribs 20 are fixedly arranged on the outer wall of five branch chute 18 along the cross-sectional direction, and fixed support device 3 is fixedly arranged at the predetermined position of five branch chute 18.

[0035] The bottom surface of the branch channel III 24 and the branch channel IV 25 is respectively provided with a preset number of drop plates 27 at a predetermined angle, the width of the drop plate 27 is equal to the width of the channel in the branch channel III 24, the length of the drop plate 27 is less than the height of the channel in the branch channel III 24, the bottom surface of the drop plate 27 is fixedly provided with a vibrator 28, the vibrator 28 is connected with the power distribution controller 2 through an electric wire, the vibrator 28 receives the instruction of the power distribution controller 2 to drive the drop plate 27 and the five-way branched chute 18 to vibrate, so as to automatically clean the adhered raw coal.

[0036] The four inner surfaces of the five-way branched chute 18 and the U-shaped plate 26 are fixedly provided with ceramic lining plates 29.

[0037] The U-shaped plate 26 is provided with an ash content sensor 30, a sulfur content sensor 31 and a Y-ray detector 32 at the bottom surface, a Y-ray emitter 33 is provided at one side of the U-shaped plate 26, and the emission direction of the Y-ray emitter 33 is towards the Y-ray detector 32.

[0038] A preset number of observation openings 34 are formed at a preset position of the top surface of the five-way branched chute 18, the observation openings 34 are flange-connected with detachable transparent cover plates 35, and the observation openings 34 serve the purpose of observation and maintenance.

[0039] The inner walls of the upper bottom surfaces of the branch channel I 22, the branch channel II 23, the branch channel III 24 and the branch channel IV 25 are fixedly provided with spray pipes 36, the spray pipes 36 are provided with a preset number of spray holes 37 towards the raw coal direction, the spray pipes 36 are closed at the end, and the front end of the spray pipe 36 is sealingly connected with the medium output pipe 7 through a five-way electromagnetic valve 38.

[0040] The chute assembly 17 is made of high-chromium cast iron. Specific embodiment one:

[0041] A coal mine uses the coal washing chute based on multi-coal quality cleaning switching, and the coal washing chute based on multi-coal quality cleaning switching and other supporting equipment are installed and connected one by one in the factory building according to the requirements through the fixed support device 3. Before use, it is checked that each equipment of the coal washing chute based on multi-coal quality cleaning switching is normal, then the power distribution controller 2 is electrically connected, the liquid crystal touch screen 16 is turned on and constantly bright, the ash content instrument 12, the sulfur content instrument 13, the Y-ray density processing assembly 14, the processor 15, the ash content sensor 30, the sulfur content sensor 31, the Y-ray detector 32, the Y-ray emitter 33, the circulating pump I 8, the circulating pump II 9, the plug-in gate 19, the three-way electromagnetic valve 6, the five-way electromagnetic valve 38 and the medium mixing barrel 11 are in standby state.

[0042] The raw coal is conveyed to the U-shaped plate 26 by the belt conveyor, the ash content sensor 30, the sulfur content sensor 31 and the Y-ray detector 32 cooperate with the Y-ray emitter 33 to respectively collect the information of the ash content, the sulfur content and the density of the raw coal, and respectively transmit to the ash content meter 12, the sulfur content meter 13 and the Y-ray density processing assembly 14, and the specific data processed is transmitted to the processor 15, and compared with the multiple coal quality characteristic data information stored in the processor 15, so that the separation medium density can be quickly adjusted online and the desliming and non-desliming separation processes can be automatically switched;

[0043] After comparison, the coal quality of the raw coal belongs to the low-ash and low-sulfur type, and the automatic non-desliming separation scheme is used, and the processor 15 simultaneously sends a command to close the plug-in gate 19 of the branch channel I 22 and the branch channel II 23, and opens the plug-in gate 19 of the branch channel III 24 and the branch channel IV 25, and due to the downward inclination angle of the U-shaped plate 26 and the five-way branched chute 18, the raw coal sequentially slides downward through the U-shaped plate 26, the main channel 21, the branch channel III 24 and the branch channel IV 25, and the ceramic lining plate 29 protects the inner side of the U-shaped plate 26 and the five-way branched chute 18, thereby prolonging the service life thereof;

[0044] Meanwhile, under the instruction of the processor 15, the circulating pump I 8 is started to extract the water medium from the water container 10, the three-way electromagnetic valve 6 closes the switch of the heavy medium supply pipe 5, the water medium supply pipe 4 and the medium output pipe 7 form a path, the five-way electromagnetic valve 38 closes the switch of the injection pipe 36 in the branch channel I 22 and the branch channel II 23, the medium output pipe 7 and the injection pipe 36 in the branch channel III 24 and the branch channel IV 25 form a path at the same time, the water medium enters the injection pipe 36 in the branch channel III 24 and the branch channel IV 25 through the water medium supply pipe 4 and the medium output pipe 7, and sprays the water medium toward the raw coal through the injection hole 37, thereby wetting the raw coal, and after a preset number of drop plates 27, the raw coal is slowed down, the impurities are separated and fully wetted, and thereafter, the raw coal separated and fully wetted by the coal washing chute based on the multiple coal quality cleaning switching flows out from the branch channel III 24 and the branch channel IV 25, and enters the next process;

[0045] The operator can set the self-cleaning interval time of the vibrator 28 through the liquid crystal touch screen 16, and can also immediately start the self-cleaning function, after being turned on, the vibrator 28 receives the instruction of the power distribution controller 2 to drive the drop plate 27 and the five-way branched chute 18 to vibrate, thereby shaking the adhered raw coal to slide down, effectively preventing the occurrence of blockage, the observation port 34 can observe the working condition of the five-way branched chute 18 in real time, whether there is blockage and the like, and the detachable transparent cover plate 35 can maintain the five-way branched chute 18 and the internal equipment thereof. Specific embodiment two:

[0046] When compared, the coal quality of the raw coal belongs to the high-ash high-sulfur type, it is determined to use the desliming separation scheme, the processor 15 simultaneously sends an instruction to close the plug-in gate 19 of the branch channel III 24 and the branch channel IV 25, and opens the plug-in gate 19 of the branch channel I 22 and the branch channel II 23. Due to the downward inclination angle of the U-shaped plate 26 and the five-way branched chute 18, the raw coal sequentially slides downward through the U-shaped plate 26, the main channel 21, the branch channel I 22 and the branch channel II 23. The downward inclination angle of the branch channel I 22 and the branch channel II 23 is greater than the downward inclination angle of the branch channel III 24 and the branch channel IV 25, which aims to increase the sliding speed due to the fact that the density of the heavy medium is greater than the density of the water medium;

[0047] Meanwhile, under the instruction of the processor 15, the appropriate heavy medium suspension is automatically adjusted in the medium mixing barrel 11. The circulating pump II 9 is started to extract the heavy medium suspension from the medium mixing barrel 11. The three-way electromagnetic valve 6 closes the switch of the water medium supply pipe 4, and automatically switches to the heavy medium supply pipe 5 and the medium output pipe 7 to form a passage. The five-way electromagnetic valve 38 closes the switch of the injection pipe 36 in the branch channel III 24 and the branch channel IV 25, and automatically switches to the medium output pipe 7 and the injection pipe 36 in the branch channel I 22 and the branch channel II 23 to form a passage at the same time. The heavy medium suspension enters the injection pipe 36 in the branch channel I 22 and the branch channel II 23 through the heavy medium supply pipe 5 and the medium output pipe 7, and sprays the heavy medium toward the raw coal from the injection hole 37 to wet the raw coal. From then on, the raw coal that has been impurity detached and fully wetted by the coal washing chute based on the multi-coal quality cleaning switching described above flows out from the outlet of the branch channel I 22 and the branch channel II 23, and enters the next process;

[0048] The same heavy medium suspension as in other processes is used in the five-way branched chute 18. The density of the heavy medium suspension mixed in the raw coal does not change during the entire cleaning and sorting process, which ensures that the raw coal gets the best cleaning and sorting effect and improves the coal washing quality.

Claims

1. A coal washing chute based on multi-coal quality washing switching, comprising a medium switching assembly (1), a power distribution controller (2) and a fixed support device (3), characterized in that, the medium switching assembly (1) comprises a water medium supply pipe (4), a heavy medium supply pipe (5), a three-way electromagnetic valve (6), a medium output pipe (7), a circulating pump I (8) and a circulating pump II (9), one end of the water medium supply pipe (4), the heavy medium supply pipe (5) and the medium output pipe (7) is respectively connected with the three interfaces of the three-way electromagnetic valve (6), the other end of the water medium supply pipe (4) is connected with the liquid outlet of the circulating pump I (8), the other end of the heavy medium supply pipe (5) is connected with the liquid outlet of the circulating pump II (9), the liquid suction port of the circulating pump I (8) is connected with the water outlet of the water container (10), the liquid suction port of the circulating pump II (9) is connected with the discharge port of the medium mixing barrel (11), the three-way electromagnetic valve (6), the circulating pump I (8), the circulating pump II (9) and the medium mixing barrel (11) are respectively connected with the power distribution controller (2) through wires; the power distribution controller (2) is set as a modular structure, an ash content instrument (12), a sulfur content instrument (13), a Y-ray density processing assembly (14), a processor (15) and a liquid crystal touch screen (16) are arranged in the power distribution controller (2), the processor (15) internally stores a storage card containing multi-coal quality characteristic data information, so as to achieve the purpose of quickly online processing and adjusting the density of the separated heavy medium, automatically switching the desliming and non-desliming separation process, the processor (15) is connected with the liquid crystal touch screen (16) through a feeder line, the ash content instrument (12), the sulfur content instrument (13) and the Y-ray density processing assembly (14) are respectively connected with the power distribution controller (2) through wires.

2. A coal washing sluice based on multi-coal quality cleaning switching according to claim 1, characterized in that, Also include chute assembly (17), the chute assembly (17) includes five-way branched chute (18), plug-in plate gate (19) and reinforcing rib (20), the passage of the five-way branched chute (18) is arranged as hollow square structure, the five-way branched chute (18) is arranged as downwardly inclined structure along the conveying direction, the five-way branched chute (18) includes main channel (21), branch channel I (22), branch channel II (23), branch channel III (24) and branch channel IV (25), the five-way branched chute (18) is arranged as integral molding structure, the front end of branch channel I (22) and the front end of branch channel II (23) are connected with the rear end of main channel (21) with smooth transition structure, main channel (21), branch channel I (22) and branch channel II (23) constitute Y-shaped structure, branch channel III (24) and branch channel IV (25) are arranged as upper and lower two segments corner structure, the front end of branch channel III (24) upper segment is connected with the inner side of branch channel I (22) vertically with smooth transition structure, the front end of branch channel IV (25) upper segment is connected with the inner side of branch channel II (23) vertically with smooth transition structure, the lower segment of branch channel III (24) and the lower segment of branch channel IV (25) are vertically parallel, the inner diameter of branch channel I (22), branch channel II (23), branch channel III (24) and branch channel IV (25) is equal; The branch channel I (22), branch channel II (23), branch channel III (24) and branch channel IV (25) are provided with plug-in plate gate (19) along the cross-sectional direction, the plug-in plate gate (19) is arranged as electric gate, the plug-in plate gate (19) is connected with the power distribution controller (2) through the electric wire, the plug-in plate gate (19) is arranged at the lower side of the interface of branch channel I (22) and branch channel III (24) and the lower side of the interface of branch channel II (23) and branch channel IV (25) respectively, the rear end of branch channel I (22), branch channel II (23), branch channel III (24) and branch channel IV (25) is connected with the predetermined storage device respectively; The front end of main channel (21) is fixedly provided with U-shaped plate (26), the shape of U-shaped plate (26) matches the shape of the front end port of main channel (21), the inclination angle of U-shaped plate (26) is consistent with the inclination angle of main channel (21), the outer wall of five-way branched chute (18) is fixedly provided with a plurality of reinforcing ribs (20) along the cross-sectional direction, the preset position of five-way branched chute (18) is fixedly provided with fixed support device (3).

3. A coal washing sluice based on multi-coal quality cleaning switching according to claim 2, characterized in that, The bottom surface of the branch channel III (24) and the branch channel IV (25) is respectively provided with a preset number of drop plates (27) at a predetermined angle, the width of the drop plate (27) is equal to the width of the channel in the branch channel III (24), the length of the drop plate (27) is less than the height of the channel in the branch channel III (24), the bottom surface of the drop plate (27) is fixedly provided with a vibrator (28), the vibrator (28) is connected with the power distribution controller (2) through an electric wire, the vibrator (28) receives the instruction of the power distribution controller (2) to drive the drop plate (27) and the five-way branched chute (18) to vibrate, so as to automatically clean the adhered raw coal.

4. A coal washing sluice based on multi-coal quality cleaning switching according to claim 2, characterized in that, The four inner surfaces of the five-way branched chute (18) and the U-shaped plate (26) are fixedly provided with ceramic lining plates (29).

5. A coal washing sluice based on multi-coal quality washing switching according to claim 4, characterized in that, The U-shaped plate (26) is provided with an ash content sensor (30), a sulfur content sensor (31) and a Y-ray detector (32) on the bottom surface, one side of the U-shaped plate (26) is provided with a Y-ray emitter (33), and the emission direction of the Y-ray emitter (33) is towards the Y-ray detector (32).

6. A coal washing sluice based on multi-coal quality washing switching according to claim 2, characterized in that, A preset number of observation openings (34) are formed in the top surface of the five-way branched chute (18) at a preset position, the observation opening (34) is flange-connected with a detachable transparent cover plate (35), and the observation opening (34) serves the purpose of observation and maintenance.

7. A coal washing sluice based on multi-coal quality washing switching according to claim 2, characterized in that, The inner wall of the bottom surface of the branch channel I (22), the branch channel II (23), the branch channel III (24) and the branch channel IV (25) is fixedly provided with a spray pipe (36), the spray pipe (36) is provided with a preset number of spray holes (37) towards the raw coal direction, the end of the spray pipe (36) is provided in a closed structure, and the front end of the spray pipe (36) is sealingly connected with the medium output pipe (7) through a five-way electromagnetic valve (38).

8. A coal washing sluice based on multi-coal quality washing switching according to claim 2, characterized in that, The chute assembly (17) is made of high chromium cast iron.

Images