A new coal washing plant

Abstract

The application provides a novel coal washing equipment and belongs to the technical field of raw coal pretreatment. The coal washing equipment comprises a coal washing body assembly and a coal conveying driving mechanism. The coal washing body assembly comprises a clean water tank, a waste water tank and a sand-containing water tank. The sand-containing water tank is arranged on one side of the clean water tank. The sand-containing water tank is used for storing the liquid mixed with iron sand. When the raw coal is conveyed into the multistage coal conveying mechanism, the liquid mixed with iron sand in the sand-containing water tank is pumped out by the sand blasting mechanism and sprayed into the waste water tank. Then, the raw coal in the water in the multistage coal conveying mechanism is washed by the sprayed iron sand and liquid, so that the raw coal is vibrated in the water by the impact force difference between the iron sand and the liquid, the cleaning effect of the fine mud in the gap of the coal block is improved, the gap on the coal block is effectively expanded when the iron sand impacts the coal block, the raw coal particles are dropped, and then the raw coal can be deeply cleaned, and the mud content of the raw coal is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a coal washing equipment, in particular to a novel coal washing equipment, belonging to the technical field of raw coal pretreatment. BACKGROUND

[0002] Coal washing, also known as coal washing or coal preparation, is an important processing link after coal mining, mainly using physical methods or assisted by chemical methods to remove gangue, sulfur, ash and other impurities in raw coal, which is of great significance to improve coal quality, protect the environment, save resources, reduce use cost and meet the needs of different industrial departments. Raw coal pretreatment is a processing link before coal washing after coal mining, mainly including raw coal screening, crushing, desliming / desmearing, sorting and drying, which can effectively improve the effect of subsequent coal washing.

[0003] The Chinese patent with the patent name of a raw coal desliming device (publication number CN222587196U) discloses a raw coal desliming technology, which sprays water on the roller through the spray head to clean the filter holes on the roller, so that the roller has self-cleaning ability. The bristles can contact the filter holes on the roller to physically clean the filter holes, achieving the purpose of online cleaning. However, although the device has the function of physically cleaning the filter holes, the cleaning and desliming method adopted is the same as the traditional one, which only uses water washing and cooperates with filter cylinder filtration. The cleaning and desliming effect is poor, and the fine mud in the gaps of the coal blocks cannot be effectively cleaned. Moreover, the cleaned coal particles cannot be recycled.

[0004] The Chinese patent with the patent name of a fine coal dewatering and recycling equipment for coal production (publication number CN109967446B) discloses a fine coal dewatering and recycling technology, which uses the gas blown out of the air holes to drive the washed fine coal to move up and down in the water, so that the dust on the surface of the washed fine coal and the bubbles generated during the blowing process float to the water surface. At the same time, the gas blown out of the first branch pipe drives the bubbles and dust above the water surface to move close to the side connected with the first drain pipe, and then flows into the filter area of the water tank together with the overflowing water. However, although the equipment can separate the dust / mud in the coal powder by air flotation and can dewater the coal powder after cleaning, it is limited by the overall structure and cannot continuously produce coal. Moreover, the air flotation method cannot deeply clean the fine mud in the gaps of the coal blocks, and the cleaning effect is limited. Therefore, a novel coal washing equipment is proposed. SUMMARY

[0005] Therefore, the present application provides a novel coal washing equipment to solve or alleviate the technical problems in the prior art, and at least provides a beneficial choice.

[0006] The technical scheme of the embodiment of the present application is implemented in the following way: a novel coal washing equipment comprises a coal washer body assembly and a coal conveying driving mechanism, the coal washer body assembly comprises a clean water tank, a waste water tank and a sand-containing water tank;

[0007] The sand-containing water tank is arranged at one side of the clean water tank, the waste water tank is fixedly connected between the clean water tank and the sand-containing water tank, the coal conveying driving mechanism is installed at the outer side of the waste water tank, the waste water tank is internally provided with a multi-stage coal conveying mechanism, the top of the sand-containing water tank is provided with a sand blasting mechanism and a sludge-water separation mechanism, the sludge-water separation mechanism comprises a cyclone separator driven by a third pressure pump by using water power, and an iron sand separation mechanism is arranged at one side of the sand-containing water tank.

[0008] The sand blasting mechanism is used for pumping out the liquid mixed with iron sand in the sand-containing water tank and spraying the liquid into the waste water tank to deeply clean the raw coal.

[0009] The sludge-water separation mechanism separates the water and fine sludge, iron sand and raw coal particles in the sprayed waste water by using water power.

[0010] The iron sand separation mechanism comprises a filter conveyor, a liquid discharge hopper, a magnetic bar and an auger screw blade driven by a third motor.

[0011] The filter conveyor is installed at one side of the sand-containing water tank, the liquid discharge hopper is communicated between the filter conveyor and the sand-containing water tank, the magnetic bar is fixedly connected to the middle part of the inner side wall of the filter conveyor, and the auger screw blade is sleeved on the outer side of the magnetic bar.

[0012] Further preferably, the iron sand separation mechanism further comprises a nylon sleeve, an inner support and a material passing hole.

[0013] The nylon sleeve is fixedly connected to the outer side wall of the magnetic bar, the auger screw blade is rotationally connected to the outer side wall of the nylon sleeve, the inner support is installed at the top of the inner side wall of the sand-containing water tank, the third motor is installed at the inner side wall of the inner support, the output shaft of the third motor is fixedly connected to one end of the auger screw blade, and the material passing hole is arranged at the top of the inner side walls of the sand-containing water tank and the filter conveyor.

[0014] Further preferably, the multi-stage coal conveying mechanism comprises a material pushing auger, a cylindrical filter cartridge, a plurality of arc-shaped pushing pieces, a conical filter cartridge, a conical auger, a discharging pushing frame and two tooth rings.

[0015] The pushing auger is rotationally connected to one side of the inner side wall of the wastewater tank, the cylindrical filter drum is rotationally connected to one side of the middle of the wastewater tank, a plurality of the arc-shaped pushing pieces are fixedly connected to the inner side wall of the cylindrical filter drum, the conical filter drum is fixedly connected to the other side of the middle of the wastewater tank, the conical auger is rotationally connected to the other side of the inner side wall of the wastewater tank, the discharging pusher is fixedly connected to one side of the outer side wall of the conical auger, and two tooth rings are fixedly connected to the outer side wall of the cylindrical filter drum.

[0016] Further preferably, the sand blasting mechanism comprises a second pressure pump, a slurry suction pipe, a slurry conveying pipe and a sand blasting frame.

[0017] The second pressure pump is installed on the upper surface of the sand-containing water tank, one end of the slurry suction pipe is communicated with the water inlet of the second pressure pump, the other end of the slurry suction pipe extends to the bottom of the inner side wall of the sand-containing water tank, the sand blasting frame is located on the top of the inner side wall of the cylindrical filter drum, the sand blasting frame is fixedly connected to the top of the inner side wall of the wastewater tank, one end of the slurry conveying pipe is communicated with the water outlet of the second pressure pump, and the other end of the slurry conveying pipe is communicated with one end of the sand blasting frame.

[0018] Further preferably, the sludge-water separation mechanism further comprises a discharging hopper, a liquid discharge pipe, a liquid supply pipe and a sewage suction pipe.

[0019] The cyclone separator is installed on one side of the upper surface of the sand-containing water tank, one end of the discharging hopper is communicated with the cyclone separator, the bottom of the discharging hopper is communicated with the upper surface of the filter conveyor, one end of the liquid discharge pipe is communicated with the overflow port of the cyclone separator, the other end of the liquid discharge pipe extends to the inside of the clean water tank, the third pressure pump is installed on the other side of the upper surface of the sand-containing water tank, the liquid supply pipe is communicated between the water outlet of the third pressure pump and the feed inlet of the cyclone separator, one end of the sewage suction pipe is communicated with the water inlet of the third pressure pump, and the other end of the sewage suction pipe penetrates through the inner side wall of the sand-containing water tank and extends to the bottom of the inner side wall of the wastewater tank.

[0020] Further preferably, a spraying mechanism is installed on one side of the upper surface of the clean water tank, and the spraying mechanism comprises a first pressure pump, a water suction pipe, a water conveying pipe and a spraying frame.

[0021] The first pressure pump is installed on one side of the upper surface of the clean water tank, one end of the water suction pipe is communicated with the water inlet of the first pressure pump, the other end of the water suction pipe is communicated with the bottom of the outer side wall of the clean water tank, the spraying frame is fixedly connected to one side of the inner side wall of the wastewater tank, one end of the water conveying pipe is communicated with the water outlet of the first pressure pump, and the other end of the water conveying pipe is communicated with the top of the spraying frame.

[0022] Further preferably, the coal conveying driving mechanism comprises a first motor, a driving sprocket, a transmission chain, a driven sprocket, a transmission shaft, a gear and a second motor;

[0023] The first motor is arranged at one side of the wastewater tank, one end of an output shaft of the first motor penetrates through the inner side wall of the wastewater tank and is fixedly connected with one end of the pushing auger, the driving sprocket is fixedly connected to the outer side wall of the output shaft of the first motor, the transmission shaft is rotatably connected to one side of the outer side wall of the wastewater tank, the driven sprocket and the gear are fixedly connected to two ends of the transmission shaft respectively, the transmission chain is meshingly connected between the driving sprocket and the driven sprocket, the outer side wall of the gear is meshingly connected with the outer side wall of one of the toothed rings, and the second motor is arranged at the other side of the wastewater tank, an output shaft of the second motor penetrates through the inner side wall of the wastewater tank and is fixedly connected with one end of the conical auger.

[0024] Further preferably, two motor supports are fixedly connected to two ends of the wastewater tank, the first motor and the second motor are respectively arranged on the upper surfaces of the two motor supports, the inner side wall of the clean water tank is fixedly connected with a diagonal support filter frame at the top, and the upper surface of the diagonal support filter frame is paved with filter cloth.

[0025] Further preferably, a water inlet type raw material cavity is arranged at one side of the inner side wall of the wastewater tank, the pushing auger is located inside the water inlet type raw material cavity, a water inlet type separation cavity is arranged at the middle of the inner side wall of the wastewater tank, the cylindrical filter cartridge and the conical filter cartridge are both located inside the water inlet type separation cavity, a water outlet type discharging cavity is arranged at the other side of the inner side wall of the wastewater tank, and the discharging support frame is located inside the water outlet type discharging cavity, and the liquid level in the wastewater tank is between the maximum inner diameter and the minimum inner diameter of the conical filter cartridge.

[0026] Further preferably, a raw material hopper is fixedly connected to the top of the outer side wall of the wastewater tank, the bottom of the raw material hopper is communicated with the water inlet type raw material cavity, and a discharging hopper is fixedly connected to one side of the outer side wall of the wastewater tank, one end of the discharging hopper is communicated with the water outlet type discharging cavity.

[0027] The embodiment of the present application has the following advantages due to the adoption of the above technical solutions:

[0028] Firstly, the sand blasting mechanism is used to extract the liquid mixed with iron sand from the sand-containing water tank, and then the liquid is sprayed into the wastewater tank, and then the iron sand and the liquid are used to flush the raw coal in the water in the multi-stage coal conveying mechanism, so that the impact force difference between the iron sand and the liquid is used to make the raw coal vibrate and tumble in the water, so as to improve the cleaning effect of the fine mud in the gap of the coal block, and when the iron sand impacts the coal block, the gap on the coal block can be effectively expanded, so that the raw coal particles can be separated, and then the raw coal can be deeply cleaned, and the mud content of the raw coal can be reduced.

[0029] Secondly, the third pressure pump is used to pump out the wastewater from the washing process in the wastewater tank, and then the wastewater is delivered to the inside of the cyclone separator, and then the water, fine sludge, iron sand and raw coal particles in the wastewater are separated by the cyclone separator driven by water power, and then the separated water, fine sludge, iron sand and raw coal particles are discharged into the clean water tank and the inside of the iron sand separation mechanism, so as to recycle the water, iron sand, fine sludge and raw coal particles used in the coal washing process.

[0030] Thirdly, the separated iron sand and raw coal particles are discharged into the inside of the iron sand separation mechanism by the sludge-water separation mechanism, and then the iron sand mixed in the raw coal particles is sucked by the magnetic rod, so as to separate the iron sand and raw coal particles, and then the separated raw coal particles are delivered and recycled by the filter conveyor, and the sucked iron sand is pushed into the inside of the sand-containing water tank by the auger screw blade, so that the iron sand can be recycled.

[0031] The above summary is only for the purpose of the description and does not limit in any way. In addition to the above described illustrative aspects, embodiments and features, further aspects, embodiments and features of the present application will be apparent from the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0033] Figure 1 is a structural diagram of the present application;

[0034] Figure 2 is a side view structural schematic diagram of the present application;

[0035] Figure 3 is a sectional view structural schematic diagram of the wastewater tank of the present application;

[0036] Figure 4 is a sectional view structural schematic diagram of the sand-containing water tank of the present application;

[0037] Figure 5 is an enlarged schematic diagram of the A area structure of the present application; Figure 4

[0038] Figure 6 is a sectional view structural schematic diagram of the clean water tank of the present application;

[0039] Figure 7 is a sectional view structural schematic diagram of the discharging push frame of the present application;​

[0040] Figure 8 Axial side view of the cylindrical filter cartridge and the conical filter cartridge of the present application;

[0041] Figure 9 Axial side view of the wastewater tank of the present application;

[0042] Figure 10 Axial side view of the sand-containing water tank of the present application.

[0043] The drawings show: 1, coal washer body assembly; 2, coal conveying driving mechanism; 3, multi-stage coal conveying mechanism; 4, spraying mechanism; 5, sand blasting mechanism; 6, slurry separation mechanism; 7, iron sand separation mechanism; 101, clean water tank; 102, wastewater tank; 103, sand-containing water tank; 201, first motor; 202, driving sprocket; 203, transmission chain; 204, driven sprocket; 205, transmission shaft; 206, gear; 207, second motor; 301, pushing auger; 302, cylindrical filter cartridge; 303, arc-shaped pushing piece; 304, conical filter cartridge; 305, conical auger; 306, discharging push rack; 307, toothed ring; 401, first pressure pump; 402, water suction pipe; 403, water conveying pipe; 404, spraying rack; 501, second pressure pump; 502, slurry suction pipe; 503, slurry conveying pipe; 504, sand blasting rack; 601, cyclone separator; 602, discharging hopper; 603, liquid discharge pipe; 604, liquid supply pipe; 605, third pressure pump; 606, sewage suction pipe; 701, filter conveyor; 702, liquid discharge hopper; 703, magnetic bar; 704, nylon sleeve; 705, auger helical blade; 706, inner support; 707, third motor; 708, material passing hole; 81, motor support; 82, water inlet raw material chamber; 83, water inlet separation chamber; 84, water outlet discharging chamber; 85, raw material hopper; 86, discharging hopper; 87, inclined support filter rack; 88, filter cloth. DETAILED DESCRIPTION

[0044] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0045] It should be noted that the terms "first", "second", "symmetrical", "array" and the like are only used for distinguishing description and position description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "symmetrical" and the like can explicitly or implicitly include one or more of the features; similarly, for some features that are not limited in number by the words "two", "three" and the like, it should be noted that the features also belong to explicitly or implicitly including one or more feature quantities.

[0046] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0047] As shown in Figures 1-10 The present application provides a new coal washing equipment, which comprises a coal washing machine body assembly 1 and a coal conveying driving mechanism 2, and the coal washing machine body assembly 1 comprises a clean water tank 101, a waste water tank 102 and a sand-containing water tank 103.

[0048] The sand-containing water tank 103 is arranged on one side of the clean water tank 101, the waste water tank 102 is fixedly connected between the clean water tank 101 and the sand-containing water tank 103, the coal conveying driving mechanism 2 is installed on the outer side of the waste water tank 102, the waste water tank 102 is internally provided with a multi-stage coal conveying mechanism 3, the top of the sand-containing water tank 103 is provided with a sand spraying mechanism 5 and a sludge-water separation mechanism 6, the sludge-water separation mechanism 6 comprises a cyclone separator 601 driven by a third pressure pump 605 by means of water power, and an iron sand separation mechanism 7 is installed on one side of the sand-containing water tank 103.

[0049] The sand spraying mechanism 5 is used for pumping out the liquid mixed with iron sand in the sand-containing water tank 103 and spraying it into the inside of the waste water tank 102 to deeply clean the raw coal.

[0050] The sludge-water separation mechanism 6 separates the water and fine sludge, iron sand and raw coal particles in the sprayed waste water by means of water power driving.

[0051] The iron sand separation mechanism 7 comprises a filter conveyor 701, a liquid discharge hopper 702, a magnetic bar 703, a nylon sleeve 704, a third motor 707, an auger screw blade 705, an inner support 706 and a material passing hole 708.

[0052] The filter conveyor 701 is installed on one side of the sand-containing water tank 103, the liquid discharge hopper 702 is communicated between the filter conveyor 701 and the sand-containing water tank 103, the magnetic rod 703 is fixedly connected to the middle part of the inner side wall of the filter conveyor 701, the auger spiral blade 705 is sleeved on the outer side of the magnetic rod 703, the nylon sleeve 704 is fixedly connected to the outer side wall of the magnetic rod 703, the auger spiral blade 705 is rotationally connected to the outer side wall of the nylon sleeve 704, the inner support 706 is installed on the inner side wall top of the sand-containing water tank 103, the third motor 707 is installed on the inner side wall of the inner support 706, the output shaft of the third motor 707 is fixedly connected to one end of the auger spiral blade 705, and the material passing hole 708 is arranged on the inner side wall top of the sand-containing water tank 103 and the filter conveyor 701.

[0053] In one embodiment, the multi-stage coal conveying mechanism 3 comprises a pushing auger 301, a cylindrical filter cylinder 302, a plurality of arc-shaped pushing pieces 303, a conical filter cylinder 304, a conical auger 305, a discharging rack 306 and two tooth rings 307.

[0054] The pushing auger 301 is rotationally connected to one side of the inner side wall of the wastewater tank 102, the cylindrical filter cylinder 302 is rotationally connected to one side of the middle part of the wastewater tank 102, the plurality of arc-shaped pushing pieces 303 are fixedly connected to the inner side wall of the cylindrical filter cylinder 302, the conical filter cylinder 304 is fixedly connected to the other side of the middle part of the wastewater tank 102, the conical auger 305 is rotationally connected to the other side of the inner side wall of the wastewater tank 102, the discharging rack 306 is fixedly connected to one side of the outer side wall of the conical auger 305, and the two tooth rings 307 are fixedly connected to the outer side wall of the cylindrical filter cylinder 302.

[0055] The pushing auger 301 is rotationally connected to one side of the inner side wall of the wastewater tank 102, the cylindrical filter cylinder 302 is rotationally connected to one side of the middle part of the wastewater tank 102, the plurality of arc-shaped pushing pieces 303 are fixedly connected to the inner side wall of the cylindrical filter cylinder 302, the conical filter cylinder 304 is fixedly connected to the other side of the middle part of the wastewater tank 102, the conical auger 305 is rotationally connected to the other side of the inner side wall of the wastewater tank 102, the discharging rack 306 is fixedly connected to one side of the outer side wall of the conical auger 305, and the two tooth rings 307 are fixedly connected to the outer side wall of the cylindrical filter cylinder 302.

[0056] In one embodiment, the sand blasting mechanism 5 comprises a second pressure pump 501, a slurry suction pipe 502, a slurry conveying pipe 503 and a sand blasting frame 504.

[0057] The second pressure pump 501 is installed on the upper surface of the sand-containing water tank 103, one end of the slurry pumping pipe 502 is communicated with the water inlet of the second pressure pump 501, the other end of the slurry pumping pipe 502 extends to the bottom of the inner side wall of the sand-containing water tank 103, the sand spraying frame 504 is located at the top of the inner side wall of the cylindrical filter cartridge 302, the sand spraying frame 504 is fixedly connected to the top of the inner side wall of the waste water tank 102, one end of the slurry conveying pipe 503 is communicated with the water outlet of the second pressure pump 501, and the other end of the slurry conveying pipe 503 is communicated with one end of the sand spraying frame 504.

[0058] The second pressure pump 501 uses the slurry pumping pipe 502 to pump the water containing iron sand in the sand-containing water tank 103 out, uses the slurry conveying pipe 503 to convey the water containing iron sand into the cylindrical filter cartridge 302, and then uses the sand spraying frame 504 to quickly spray the water containing iron sand under the action of pressure to the surface of the raw coal in the cylindrical filter cartridge 302, so as to wash the surface of the raw coal, make the raw coal vibrate in the water, and expand the cracks on the coal block under the action of washing, so that the fine mud attached to the cracks and surface of the raw coal is removed.

[0059] In one embodiment, the sludge-water separation mechanism 6 further comprises a discharge hopper 602, a liquid discharge pipe 603, a liquid supply pipe 604, and a sewage pumping pipe 606.

[0060] The cyclone separator 601 is installed on one side of the upper surface of the sand-containing water tank 103, the discharge hopper 602 is communicated with one end of the cyclone separator 601, the bottom of the discharge hopper 602 is communicated with the upper surface of the filter conveyor 701, one end of the liquid discharge pipe 603 is communicated with the overflow port of the cyclone separator 601, the other end of the liquid discharge pipe 603 extends to the inside of the clean water tank 101, the third pressure pump 605 is installed on the other side of the upper surface of the sand-containing water tank 103, the liquid supply pipe 604 is communicated between the water outlet of the third pressure pump 605 and the feed inlet of the cyclone separator 601, one end of the sewage pumping pipe 606 is communicated with the water inlet of the third pressure pump 605, and the other end of the sewage pumping pipe 606 penetrates the inner side wall of the sand-containing water tank 103 and extends to the bottom of the inner side wall of the waste water tank 102.

[0061] The third pressure pump 605 uses the sewage pumping pipe 606 to pump the waste water at the bottom of the waste water tank 102 out, then uses the liquid supply pipe 604 to discharge the pumped waste water into the inside of the cyclone separator 601, and makes the waste water form a cyclone in the cyclone separator 601.

[0062] In one embodiment, a spraying mechanism 4 is installed on one side of the upper surface of the clean water tank 101, and the spraying mechanism 4 comprises a first pressure pump 401, a water pumping pipe 402, a water conveying pipe 403, and a spraying frame 404.

[0063] The first pressure pump 401 is installed on the upper surface of the clean water tank 101, one end of the water suction pipe 402 is connected to the water inlet of the first pressure pump 401, the other end of the water suction pipe 402 is connected to the bottom of the outer side wall of the clean water tank 101, the spray frame 404 is fixedly connected to the inner side wall of the waste water tank 102, one end of the water delivery pipe 403 is connected to the water outlet of the first pressure pump 401, and the other end of the water delivery pipe 403 is connected to the top of the spray frame 404.

[0064] The first pressure pump 401 is installed on the upper surface of the clean water tank 101, one end of the water suction pipe 402 is connected to the water inlet of the first pressure pump 401, the other end of the water suction pipe 402 is connected to the bottom of the outer side wall of the clean water tank 101, the spray frame 404 is fixedly connected to the inner side wall of the waste water tank 102, one end of the water delivery pipe 403 is connected to the water outlet of the first pressure pump 401, and the other end of the water delivery pipe 403 is connected to the top of the spray frame 404.

[0065] In one embodiment, the coal conveying driving mechanism 2 comprises a first motor 201, a driving sprocket 202, a transmission chain 203, a driven sprocket 204, a transmission shaft 205, a gear 206 and a second motor 207.

[0066] The first motor 201 is arranged on one side of the waste water tank 102, one end of the output shaft of the first motor 201 penetrates the inner side wall of the waste water tank 102 and is fixedly connected to one end of the pushing auger 301, the driving sprocket 202 is fixedly connected to the outer side wall of the output shaft of the first motor 201, the transmission shaft 205 is rotatably connected to one side of the outer side wall of the waste water tank 102, the driven sprocket 204 and the gear 206 are fixedly connected to two ends of the transmission shaft 205 respectively, the transmission chain 203 is meshingly connected between the driving sprocket 202 and the driven sprocket 204, the outer side wall of the gear 206 is meshingly connected with the outer side wall of a tooth ring 307, and the second motor 207 is arranged on the other side of the waste water tank 102, the output shaft of the second motor 207 penetrates the inner side wall of the waste water tank 102 and is fixedly connected to one end of the conical auger 305.

[0067] The output shaft of the first motor 201 drives the driving sprocket 202 and the pushing auger 301 to rotate, the rotating pushing auger 301 pushes the raw coal in the water inlet raw material cavity 82 to move into the cylindrical filter cartridge 302, the rotating driving sprocket 202 drives the driven sprocket 204 to rotate through the transmission chain 203, and the rotating driven sprocket 204 drives the gear 206 to rotate synchronously through the transmission shaft 205.

[0068] In one embodiment, two motor supports 81 are fixedly connected to two ends of the waste water tank 102, the first motor 201 and the second motor 207 are respectively arranged on the upper surfaces of the two motor supports 81, an inclined support filter frame 87 is fixedly connected to the top of the inner side wall of the clean water tank 101, and the upper surface of the inclined support filter frame 87 is paved with filter cloth 88.

[0069] The filter cloth 88 is arranged to filter and intercept fine silt carried in water, and the inclined support frame 87 is arranged to support the bottom of the filter cloth 88.

[0070] In one embodiment, the inner side wall of the wastewater tank 102 is provided with a water inlet type raw material cavity 82, the water inlet type raw material cavity 82 is internally provided with a pushing material auger 301, the middle of the inner side wall of the wastewater tank 102 is provided with a water inlet type separation cavity 83, the water inlet type separation cavity 83 is internally provided with a cylindrical filter cartridge 302 and a conical filter cartridge 304, the other side of the inner side wall of the wastewater tank 102 is provided with a water outlet type discharging cavity 84, the water outlet type discharging cavity 84 is internally provided with a discharging pusher 306, the liquid level in the wastewater tank 102 is between the maximum inner diameter and the minimum inner diameter of the conical filter cartridge 304; the outer side wall of the wastewater tank 102 is fixedly connected with a raw material hopper 85 at the top, the bottom of the raw material hopper 85 is communicated with the water inlet type raw material cavity 82, and the outer side wall of the wastewater tank 102 is fixedly connected with a discharging hopper 86 at one side, one end of the discharging hopper 86 is communicated with the water outlet type discharging cavity 84.

[0071] The raw material hopper 85 is arranged to add raw coal into the water inlet type raw material cavity 82 of the wastewater tank 102, and the discharging hopper 86 is arranged to discharge the raw coal blocks after cleaning from the water outlet type discharging cavity 84 of the wastewater tank 102.

[0072] In one embodiment, the material of the iron sand is ferroferric oxide powder or particles, and can also be other metal particles that can be magnetically attracted.

[0073] In one embodiment, in order to balance the liquid levels in the clean water tank 101 and the sand-containing water tank 103, a pipeline for balancing the liquid level is installed at a horizontal position between the clean water tank 101 and the sand-containing water tank 103, so that when the liquid level in the sand-containing water tank 103 rapidly decreases, the filtered water in the clean water tank 101 can be used for supplement.

[0074] In operation, the device is first installed at a designated position according to actual requirements, then the conveyor is used to convey the crushed raw coal into the raw material hopper 85, so that the raw material hopper 85 guides the raw coal blocks into the water inlet type raw material cavity 82 of the wastewater tank 102, the raw coal is subjected to the feeding operation, and part of the raw coal is soaked in the water in the wastewater tank 102.

[0075] When the raw coal needs to be cleaned and deslimed, the output shaft of the first motor 201 drives the driving sprocket 202 and the pushing auger 301 to rotate, the rotating pushing auger 301 pushes the raw coal in the water inlet raw material cavity 82 to move into the cylindrical filter cartridge 302, the driving sprocket 202 drives the driven sprocket 204 to rotate through the transmission chain 203, the driven sprocket 204 drives the gear 206 to rotate synchronously through the transmission shaft 205, and the gear 206 drives the cylindrical filter cartridge 302 to rotate through the gear ring 307; when the raw coal enters the cylindrical filter cartridge 302, the raw coal is transported twice by the rotating cylindrical filter cartridge 302 cooperating with the arc-shaped pushing piece 303.

[0076] When the raw coal in the cylindrical filter cartridge 302 needs to be deeply cleaned, the second pressure pump 501 draws the water containing iron sand in the sand-containing water tank 103 through the slurry suction pipe 502, and then the water containing iron sand is transported to the sand blasting frame 504 through the slurry conveying pipe 503, and then the water containing iron sand is quickly sprayed into the raw coal surface in the cylindrical filter cartridge 302 under the action of pressure through the sand blasting frame 504, so as to wash the raw coal surface, make the raw coal roll and vibrate in the water, and expand the gap on the coal block under the action of washing, so as to remove the fine mud attached to the gap and surface of the raw coal; then the cylindrical filter cartridge 302 is arranged to filter the washed wastewater, so that the iron sand and the fine mud and raw coal particles fall off and pass through the cylindrical filter cartridge 302 into the water at the bottom of the wastewater tank 102, and then the raw coal block after washing is pushed into the conical filter cartridge 304 by the rotating cylindrical filter cartridge 302 cooperating with the arc-shaped pushing piece 303.

[0077] When the raw coal block enters the conical filter cartridge 304, the output shaft of the second motor 207 drives the conical auger 305 to rotate, the rotating conical auger 305 pushes the raw coal block from the large inner diameter of the conical filter cartridge 304 to the small inner diameter direction, so that the coal block is separated from the water in the wastewater tank 102 in the process of pushing, and at the same time, the filtered water in the clean water tank 101 is drawn out through the water suction pipe 402 by the first pressure pump 401, and then the drawn water is transported to the spraying frame 404 through the water conveying pipe 403, and then the water is sprayed to the surface of the raw coal block in the conical filter cartridge 304 through the spraying frame 404, so as to remove the fine mud and iron sand remaining on the surface of the raw coal block by water spraying.

[0078] When the raw coal block in the conical filter cartridge 304 enters the water outlet type discharge cavity 84 under the action of the conical auger 305, the discharge frame 306 rotating with the conical auger 305 drives the raw coal block to move upward, and when the raw coal block moves to the highest position, the raw coal block is guided into the discharge hopper 86 by gravity cooperating with the discharge frame 306, so as to concentrate and discharge the cleaned coal block by the discharge hopper 86.

[0079] When the fine mud, iron sand and raw coal particles in the water in the wastewater tank 102 need to be separated and recovered, the wastewater at the bottom of the wastewater tank 102 is pumped out by the third pressure pump 605 through the sewage pipe 606, and then the pumped-out wastewater is discharged into the inside of the cyclone separator 601 through the liquid supply pipe 604, and the wastewater is formed into a cyclone in the cyclone separator 601, so that the relatively heavy iron sand and raw coal particles carried in the water lose power and gather at the bottom of the cyclone separator 601 under the action of centrifugal sedimentation, while a large amount of water and fine mud are relatively light in mass and move to the overflow port of the cyclone separator 601 under the action of the central water flow, and then the overflowed water and fine mud in the cyclone separator 601 are discharged into the inside of the clean water tank 101 through the arranged liquid discharge pipe 603, and then the fine mud carried in the water is filtered and intercepted by the arranged filter cloth 88. The water, iron sand and raw coal particles gathered at the bottom of the cyclone separator 601 are discharged into the filter conveyor 701 through the discharge hopper 602, and then the iron sand carried in the water is adsorbed by the magnetic rod 703 cooperating with the nylon sleeve 704, and the iron sand and raw coal particles are separated, and then the output shaft of the third motor 707 drives the auger screw blade 705 to rotate outside the nylon sleeve 704, so as to push the iron sand adsorbed outside the nylon sleeve 704 to move to the material passing hole 708 by the rotating auger screw blade 705; when the iron sand is pushed into the material passing hole 708, the adsorption effect of the magnetic rod 703 on the iron sand disappears, so as to push the iron sand into the sand-containing water tank 103 by the rotating auger screw blade 705 cooperating with the material passing hole 708, so as to supplement the content of the iron sand in the water in the sand-containing water tank 103, and the iron sand can be recycled.

[0080] Then the separated raw coal particles are intercepted and conveyed by the arranged filter conveyor 701, so as to concentrate and recover the raw coal particles falling off the coal blocks, and the discharged water is discharged into the inside of the sand-containing water tank 103 through the liquid discharge hopper 702, so as to supplement the water in the sand-containing water tank 103.

[0081] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A novel coal washing plant comprising a coal washer body assembly and a coal conveying drive mechanism, characterized in that, The coal washer body assembly comprises a clean water tank, a waste water tank and a sand-containing water tank; The sand-containing water tank is arranged on one side of the clean water tank, the waste water tank is fixedly connected between the clean water tank and the sand-containing water tank, the coal conveying driving mechanism is arranged on the outer side of the waste water tank, the waste water tank is internally provided with a multi-stage coal conveying mechanism, the top of the sand-containing water tank is provided with a sand blasting mechanism and a sludge-water separation mechanism, the sludge-water separation mechanism comprises a cyclone separator driven by a third pressure pump by using water power, a discharge hopper, a liquid discharge pipe, a liquid supply pipe and a sewage suction pipe, and the water power is used to separate the water in the waste water, fine sludge, iron sand and raw coal particles; One side of the sand-containing water tank is provided with an iron sand separation mechanism; The iron sand separation mechanism comprises a filter conveyor, a liquid discharge hopper, a magnetic rod, an auger screw blade driven by a third motor and a nylon sleeve fixedly connected to the outer side wall of the magnetic rod; The filter conveyor is arranged on one side of the sand-containing water tank, the liquid discharge hopper is communicated between the filter conveyor and the sand-containing water tank, the magnetic rod is fixedly connected to the middle part of the inner side wall of the filter conveyor, the auger screw blade is sleeved on the outer side of the magnetic rod, and the auger screw blade is rotationally connected to the outer side wall of the nylon sleeve; The multi-stage coal conveying mechanism comprises a pushing auger, a cylindrical filter cartridge, a plurality of arc-shaped pushing pieces, a conical filter cartridge, a conical auger, a discharging rack and two tooth rings; The pushing auger is rotationally connected to one side of the inner side wall of the waste water tank, the cylindrical filter cartridge is rotationally connected to one side of the middle part of the waste water tank, the plurality of arc-shaped pushing pieces are fixedly connected to the inner side wall of the cylindrical filter cartridge, the conical filter cartridge is fixedly connected to the other side of the middle part of the waste water tank, the conical auger is rotationally connected to the other side of the inner side wall of the waste water tank, the discharging rack is fixedly connected to one side of the outer side wall of the conical auger, and the two tooth rings are symmetrically fixedly connected to the outer side wall of the cylindrical filter cartridge; The cyclone separator is arranged on one side of the upper surface of the sand-containing water tank, one end of the discharge hopper is communicated with the cyclone separator, the bottom of the discharge hopper is communicated with the upper surface of the filter conveyor, one end of the liquid discharge pipe is communicated with the overflow port of the cyclone separator, the other end of the liquid discharge pipe extends into the clean water tank, the third pressure pump is arranged on the other side of the upper surface of the sand-containing water tank, the liquid supply pipe is communicated between the water outlet of the third pressure pump and the feed inlet of the cyclone separator, one end of the sewage suction pipe is communicated with the water inlet of the third pressure pump, and the other end of the sewage suction pipe penetrates through the inner side wall of the sand-containing water tank and extends to the bottom of the inner side wall of the waste water tank; The coal conveying driving mechanism comprises a first motor, a driving sprocket, a transmission chain, a driven sprocket, a transmission shaft, a gear and a second motor. The first motor is arranged on one side of the wastewater tank, one end of an output shaft of the first motor penetrates the inner side wall of the wastewater tank and is fixedly connected with one end of the pushing auger, the driving sprocket is fixedly connected to the outer side wall of the output shaft of the first motor, the transmission shaft is rotatably connected to one side of the outer side wall of the wastewater tank, the driven sprocket and the gear are fixedly connected to two ends of the transmission shaft respectively, the transmission chain is meshingly connected between the driving sprocket and the driven sprocket, the outer side wall of the gear is meshingly connected with the outer side wall of one of the toothed rings, and the second motor is arranged on the other side of the wastewater tank.

2. The novel coal washing plant as claimed in claim 1, wherein: The iron sand separation mechanism further comprises an inner support and a material passing hole. The inner support is mounted on the top of the inner side wall of the sand-containing tank, the third motor is mounted on the inner side wall of the inner support, one end of the output shaft of the third motor is fixedly connected with the auger spiral blade, and the material passing hole is arranged on the top of the inner side walls of the sand-containing tank and the filter conveyor.

3. The novel coal washing plant as claimed in claim 1, wherein: The sand blasting mechanism comprises a second pressure pump, a slurry suction pipe, a slurry conveying pipe and a sand blasting frame. The second pressure pump is mounted on the upper surface of the sand-containing tank, one end of the slurry suction pipe is communicated with the water inlet of the second pressure pump, the other end of the slurry suction pipe extends to the bottom of the inner side wall of the sand-containing tank, the sand blasting frame is located on the top of the inner side wall of the cylindrical filter cartridge, the sand blasting frame is fixedly connected to the top of the inner side wall of the wastewater tank, one end of the slurry conveying pipe is communicated with the water outlet of the second pressure pump, and the other end of the slurry conveying pipe is communicated with one end of the sand blasting frame.

4. The novel coal washing plant as claimed in claim 1, wherein: A spraying mechanism is mounted on one side of the upper surface of the clean water tank, and the spraying mechanism comprises a first pressure pump, a water suction pipe, a water conveying pipe and a spraying frame. The first pressure pump is mounted on one side of the upper surface of the clean water tank, one end of the water suction pipe is communicated with the water inlet of the first pressure pump, the other end of the water suction pipe is communicated with the bottom of the outer side wall of the clean water tank, the spraying frame is fixedly connected to one side of the inner side wall of the wastewater tank, one end of the water conveying pipe is communicated with the water outlet of the first pressure pump, and the other end of the water conveying pipe is communicated with the top of the spraying frame.

5. The novel coal washing plant as claimed in claim 1, wherein: Two motor supports are fixedly connected to two ends of the wastewater tank, the first motor and the second motor are respectively mounted on the upper surfaces of the two motor supports, an inclined support filter frame is fixedly connected to the top of the inner side wall of the clean water tank, and filter cloth is laid on the upper surface of the inclined support filter frame.

6. The novel coal washing plant as claimed in claim 1, wherein: A water inlet type raw material cavity is arranged on one side of the inner side wall of the wastewater tank, the pushing auger is located in the water inlet type raw material cavity, a water inlet type separation cavity is arranged in the middle of the inner side wall of the wastewater tank, the cylindrical filter cartridge and the conical filter cartridge are located in the water inlet type separation cavity, a water outlet type discharging cavity is arranged on the other side of the inner side wall of the wastewater tank, a discharging frame is located in the water outlet type discharging cavity, and the liquid level in the wastewater tank is between the maximum inner diameter and the minimum inner diameter of the conical filter cartridge.

7. The novel coal washing plant as claimed in claim 6, wherein: The outer side wall top of the wastewater tank is fixedly connected with a raw material hopper, the bottom of the raw material hopper is communicated with the water-in raw material cavity, and the outer side wall of the wastewater tank is fixedly connected with a lower hopper on one side. One end of the lower hopper is communicated with the water-out lower feeding cavity.

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