An energy-saving filtering coal washing machine

Abstract

The invention discloses an energy-saving filtering coal washing machine, which belongs to the technical field of coal washing. The machine comprises a tank body, wherein the upper end and the lower end of the tank body are connected with mixed flotation components, the outer end of the mixed flotation component is connected with a centrifugal filter, the mixed flotation component comprises a flotation discharge component, a dispersed feeding component and a rotary stirring and air supply component, the lower end of the tank body is connected with the flotation discharge component, the upper end of the tank body is connected with the dispersed feeding component, the lower end of the dispersed feeding component is connected with the rotary stirring and air supply component, raw materials are dispersedly fed into the flotation discharge component through the dispersed feeding component, the flotation discharge component simultaneously drives the rotary stirring and air supply component to stir the raw materials at the lower end of the flotation discharge component and to jet the raw materials, so that the raw materials and the gas are mixed more evenly, which greatly improves the coal washing efficiency, and the dispersed feeding component simultaneously drives the centrifugal filter to centrifugally filter the raw materials after flotation in the flotation discharge component, thereby reducing energy loss.

Description

Technical Field

[0001] The invention relates to the technical field of coal washing, and in particular to an energy-saving filtering coal washing machine. Background Art

[0002] Coal washing machines are divided into jigging coal washing machines, flotation coal washing equipment, heavy medium coal washing equipment, dry coal washing equipment, etc. Among them, flotation machine is the abbreviation of flotation ore dressing machine, which refers to the mechanical equipment that completes the flotation process. In the flotation machine, the slurry treated with reagents is stirred and aerated so that some of the mineral particles are selectively fixed on the bubbles; they float to the surface of the slurry and are scraped out to form a foam product, and the rest is retained in the slurry to achieve the purpose of separating minerals.

[0003] Since the flotation coal washing machine of traditional technology has a fixed feeding position, the raw materials cannot be fully mixed with the gas, resulting in poor coal washing efficiency. In addition, the flotation coal washing machine of traditional technology will only inflate from a fixed position, so that the raw materials far away from the inflation port cannot come into contact with the gas, thereby resulting in poor coal washing efficiency.

[0004] Based on this, the present invention designs an energy-saving filtering coal washing machine to solve the above problems. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides an energy-saving filtering coal washing machine.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] An energy-saving filtering coal washer comprises a tank body;

[0008] The upper and lower ends of the tank body are connected with mixed flotation components for fully mixing gas and raw materials for flotation;

[0009] The outer end of the mixed flotation assembly is connected to a centrifugal filter device for filtering the mixed flotation assembly product in linkage with the mixed flotation assembly, and the outer end of the centrifugal filter device is connected to the tank body;

[0010] The mixed flotation assembly comprises a flotation discharge assembly, a dispersion feed assembly and a rotary stirring and air supply assembly. The lower end of the tank body is connected to the flotation discharge assembly, the upper end of the tank body is connected to the dispersion feed assembly for dispersing and feeding raw materials into the flotation discharge assembly, the lower end of the dispersion feed assembly is connected to the rotary stirring and air supply assembly for stirring and blowing the raw materials at the lower end of the flotation discharge assembly, the lower end of the rotary stirring and air supply assembly passes through the lower end of the flotation discharge assembly and the lower end of the tank body, and is connected to the flotation discharge assembly and the tank body.

[0011] Furthermore, the flotation discharge assembly includes a flotation tank, an annular guide plate, a residue discharge pipe and a clean coal discharge port. The inner bottom of the tank body is fixedly connected to the flotation tank through a support column, an annular guide plate is fixedly connected to the open outer wall of the flotation tank, the bottom of the flotation tank is fixedly connected to the residue discharge pipe, the residue discharge pipe passes through the bottom of the tank body and is connected to the flotation tank, and a clean coal discharge port is opened at the bottom of the tank body.

[0012] Furthermore, the dispersed feeding assembly includes a feeding barrel, a feeding pipe, a motor, an auger and a bulk impeller. The feeding barrel is fixedly connected to the middle part of the upper end of the tank body, the upper end of the feeding barrel is connected to the feeding pipe, the upper end of the feeding pipe passes through the top plate of the tank body and is fixedly connected to the tank body, the motor is fixedly connected to the top of the tank body above the feeding barrel, the output end of the motor passes through the top plate of the tank body and the top plate of the feeding barrel and is fixedly connected to the auger, the output end of the motor is rotatably connected to the feeding barrel, the auger is located inside the feeding barrel, the bottom of the auger is fixedly connected to the bulk impeller, the bulk impeller is located below the feeding barrel, and the bottom of the bulk impeller is fixedly connected to a rotating stirring and air supply assembly.

[0013] Furthermore, the rotary stirring air supply assembly includes a rotary air tank, an air inlet pipe, a fixed bevel gear, a support plate, a rotary air supply pipe, a movable bevel gear, an air vent, an air blowing pipe and an air outlet hole. The bottom of the bulk material impeller is fixedly connected to the rotary air tank. The upper end of the air inlet pipe passes through the bottom plate of the flotation tank and the bottom plate of the rotary air tank. The air inlet pipe is rotatably connected to the rotary air tank. The air inlet pipe is fixedly connected to the flotation tank. The air inlet pipe is communicated with the rotary air tank. The lower end of the air inlet pipe passes through the lower end of the tank body. The upper end of the air inlet pipe is fixedly connected to the fixed bevel gear. The top of the rotary air tank above the air inlet pipe is fixedly connected to a support plate. A group of rotating air supply pipes are rotatably connected to the left and right side walls of the two ends, and the two groups of rotating air supply pipes respectively pass through the left and right ends of the rotating air tank and are rotatably connected to the rotating air tank. A group of moving bevel gears are fixedly connected to the rotating air supply pipe above the fixed bevel gear, and the two groups of moving bevel gears are meshed with the fixed bevel gear. A number of ventilation holes are provided on the parts of the two groups of rotating air supply pipes located inside the rotating air tank, and the rotating air tank is connected to the rotating air supply pipes through the ventilation holes. The parts of the two groups of rotating air supply pipes located outside the rotating air tank are fixedly connected to a number of blowing pipes, and the blowing pipes are connected to the rotating air supply pipes, and the blowing pipes are provided with a number of air outlet holes.

[0014] Furthermore, the outer wall of the flotation tank is connected to a centrifugal filter device, the motor output end above the feeding cylinder is connected to a centrifugal filter device, and the upper end of the feeding cylinder is connected to a centrifugal filter device.

[0015] Furthermore, the centrifugal filtration device includes a speed change assembly and a centrifugal filtration assembly, the motor output end above the feed barrel is connected to the speed change assembly, the upper end of the feed barrel is connected to the speed change assembly, the lower end of the speed change assembly is connected to the centrifugal filtration assembly, the inner end of the centrifugal filtration assembly is connected to the outer wall of the flotation tank, and the outer end of the centrifugal filtration assembly is connected to the inner wall of the tank body.

[0016] Furthermore, the speed change assembly includes a first gear, a second gear, a rotating rod, a third gear, a fourth gear and a turntable. The output end of the motor above the feeding barrel passes through the first gear and is fixedly connected to the first gear. A rotating rod is rotatably connected to the tank body on the right side of the first gear. The upper end of the rotating rod is fixedly connected to the second gear. The second gear is meshed with the first gear. The lower end of the rotating rod is fixedly connected to the third gear. The fourth gear and the turntable are rotatably connected on the outer wall of the upper end of the feeding barrel. The fourth gear is fixedly connected to the turntable. The fourth gear is meshed with the third gear. A centrifugal filter assembly is connected to the bottom outer end of the turntable.

[0017] Furthermore, the circumference of the first gear is greater than the circumference of the second gear, and the circumference of the third gear is greater than the circumference of the fourth gear.

[0018] Furthermore, the centrifugal filtration assembly includes a rotating drum, connecting rods, centrifugal baffles, a sieve plate and a water outlet. The rotating drum is rotatably connected to the outer wall of the flotation tank below the annular guide plate, and a plurality of groups of connecting rods are fixedly connected to the bottom outer end of the turntable. The lower ends of the connecting rods are fixedly connected to the rotating drum, and a plurality of groups of centrifugal baffles are fixedly connected to the outer wall of the rotating drum. A sieve plate is fixedly connected to the inner wall of the tank body outside the centrifugal baffle, and a water outlet is provided at the lower end of the side wall of the tank body outside the sieve plate.

[0019] Furthermore, the centrifugal baffle is an inclined arc-shaped plate.

[0020] The present invention has the following technical effects:

[0021] 1. When it is necessary to wash coal, the present invention feeds the raw material into the feeding barrel through the feeding pipe, and at this time, the motor is started, the motor drives the auger to rotate, the auger drives the bulk material impeller to rotate, and the raw material is continuously fed to the bulk material impeller below the feeding barrel through the auger, and the bulk material impeller rotates while the raw material is scattered around and sprinkled into the flotation tank, and the bulk material impeller rotates while the rotating gas tank is driven to rotate, and the rotating gas tank drives two sets of rotating air supply pipes to rotate around the upper end of the air inlet pipe, and the rotating air supply pipe drives the moving bevel gear to rotate around the fixed bevel gear. Since the moving bevel gear is meshed with the fixed bevel gear, the moving bevel gear rotates around the fixed bevel gear while driving the rotating air supply pipe to rotate under the limit support of the support plate, so that the rotating air supply pipe drives the blowing pipe to rotate around the upper end of the air inlet pipe while rotating around the rotating air supply pipe, and at this time, the rotating air is fed to the rotating air supply pipe through the air inlet pipe. Gas is introduced into the tank, and the gas enters the rotating air supply pipe through the air vent, and then enters the blowing pipe through the rotating air supply pipe and is ejected through the air outlet, so that the outlet can continuously stir the raw materials below the flotation tank while ejecting gas from all directions, so that the gas and the raw materials are evenly mixed, and because the bulk material impeller is located above the air vent, the newly added raw materials are stirred by the air vent at the first time and fully mixed with the gas ejected from the air vent, thereby improving the flotation efficiency, and bubbles are formed after the gas and the raw materials are mixed, and the coal components in the raw materials are driven up by the bubbles and enter the inside of the centrifugal filter device under the guidance of the annular guide plate for filtration, and the finished product after filtration falls on the clean coal discharge port and is discharged through the clean coal discharge port, and the remaining impurities at the lower end of the flotation tank are discharged through the residue discharge pipe.

[0022] 2. In the present invention, when the motor is running to float the raw materials, the motor drives the first gear to rotate, the first gear drives the second gear to rotate, the second gear drives the third gear to rotate through the rotating rod, the third gear drives the turntable to rotate through the fourth gear, the turntable drives the rotating drum to rotate through the connecting rod, and the connecting rod drives all the centrifugal baffles to rotate. At this time, the raw materials in the flotation tank are floated and sent to the centrifugal baffles between the rotating drum and the sieve plate through the annular guide plate. At this time, the connecting rod drives the centrifugal baffles to rotate to centrifuge the raw materials after flotation. When the raw materials are centrifuged, the water is filtered out through the sieve plate to obtain the final product, and the water is discharged through the water outlet. Since the centrifugal baffles are inclined The arc plate allows the centrifugal baffle to squeeze the product downward and discharge it through the clean coal discharge port while centrifugally filtering the raw materials after flotation. Since the circumference of the first gear is greater than that of the second gear, and the circumference of the third gear is greater than that of the fourth gear, the rotation speed of the fourth gear is greater than that of the auger, and then the rotation speed of the drum is greater than that of the auger, so that the motor drives the auger to rotate normally while driving the drum to rotate at high speed for centrifugation, thereby realizing a group of motors to feed, stir and centrifugally filter the raw materials at the same time, greatly saving energy loss, and there is no need to send the raw materials after flotation to the centrifuge for centrifugal filtration, which is simple and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A three-dimensional diagram of an energy-saving filtering coal washer of the present invention;

[0025] Figure 2 It is a right side view of an energy-saving filtering coal washer of the present invention;

[0026] Figure 3 For along Figure 2 AA direction section Figure 1 ;

[0027] Figure 4 For along Figure 2 AA direction section Figure 2 ;

[0028] Figure 5 This is a schematic structural diagram of an energy-saving filtering coal washer of the present invention without the tank body and the filter screen;

[0029] Figure 6 for Figure 4 The enlarged view of point B in the middle;

[0030] Figure 7 for Figure 4 Enlarged view of point C in the middle.

[0031] The numbers in the figure represent:

[0032] 1. Tank 2. Mixed flotation assembly 21. Flotation discharge assembly 211. Flotation tank 212. Annular guide plate 213. Residue discharge pipe 214. Clean coal discharge port 22. Dispersed feed assembly 221. Feed cylinder 222. Feed pipe 223. Motor 224. Auger 225. Bulk material impeller 23. Rotating stirring air supply assembly 231. Rotating air tank 232. Air intake pipe 233. Fixed bevel gear 234. Support plate 2 35. Rotating air supply pipe 236. Moving bevel gear 237. Air vent 238. Air blowing pipe 239. Air outlet 3. Centrifugal filter device 31. Speed ​​change assembly 311. First gear 312. Second gear 313. Rotating rod 314. Third gear 315. Fourth gear 316. Turntable 32. Centrifugal filter assembly 321. Rotating drum 322. Connecting rod 323. Centrifugal baffle 324. Screen plate 325. Water outlet. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The present invention will be further described below in conjunction with the embodiments.

[0035] Example 1

[0036] Please refer to the instruction manual Figure 1-Figure 7 , an energy-saving filtering coal washer, comprising a tank body 1;

[0037] The upper and lower ends of the tank body 1 are connected with a mixed flotation assembly 2 for fully mixing gas and raw materials for flotation;

[0038] The outer end of the mixed flotation assembly 2 is connected to a centrifugal filter device 3 for working in conjunction with the mixed flotation assembly 2 to filter the product of the mixed flotation assembly 2. The outer end of the centrifugal filter device 3 is connected to the tank body 1.

[0039] The mixed flotation assembly 2 includes a flotation discharge assembly 21, a dispersion feed assembly 22 and a rotary stirring air supply assembly 23. The lower end of the tank body 1 is connected to the flotation discharge assembly 21, the upper end of the tank body 1 is connected to the dispersion feed assembly 22 for dispersing and feeding raw materials into the flotation discharge assembly 21, the lower end of the dispersion feed assembly 22 is connected to the rotary stirring air supply assembly 23 for stirring and blowing the raw materials at the lower end of the flotation discharge assembly 21, the lower end of the rotary stirring air supply assembly 23 passes through the lower end of the flotation discharge assembly 21 and the lower end of the tank body 1, and is connected to the flotation discharge assembly 21 and the tank body 1;

[0040] The flotation discharge assembly 21 includes a flotation tank 211, an annular guide plate 212, a residue discharge pipe 213 and a clean coal discharge port 214. The inner bottom of the tank body 1 is fixedly connected to the flotation tank 211 through a support column, the annular guide plate 212 is fixedly connected to the open outer wall of the flotation tank 211, the bottom of the flotation tank 211 is fixedly connected to the residue discharge pipe 213, the residue discharge pipe 213 passes through the bottom of the tank body 1 and is connected to the flotation tank 211, the bottom of the tank body 1 is provided with a clean coal discharge port 214, and the outer side wall of the flotation tank 211 is connected to a centrifugal filter device 3;

[0041] The dispersed feeding assembly 22 includes a feeding barrel 221, a feeding pipe 222, a motor 223, an auger 224 and a bulk material impeller 225. The feeding barrel 221 is fixedly connected to the middle of the upper end of the tank body 1, and the upper end of the feeding barrel 221 is connected to the feeding pipe 222. The upper end of the feeding pipe 222 passes through the top plate of the tank body 1 and is fixedly connected to the tank body 1. The motor 223 is fixedly connected to the top of the tank body 1 above the feeding barrel 221. The output end of the motor 223 passes through the top plate of the tank body 1 and the top plate of the feeding barrel 221 and is fixedly connected to the top plate of the tank body 1. A screw 224 is fixedly connected, the output end of the motor 223 is rotatably connected to the feeding barrel 221, the screw 224 is located inside the feeding barrel 221, the bottom of the screw 224 is fixedly connected to a bulk material impeller 225, the bulk material impeller 225 is located below the feeding barrel 221, the bottom of the bulk material impeller 225 is fixedly connected to a rotary stirring air supply component 23, the output end of the motor 223 above the feeding barrel 221 is connected to a centrifugal filter device 3, and the upper end of the feeding barrel 221 is connected to the centrifugal filter device 3;

[0042] The rotary stirring air supply assembly 23 includes a rotary air tank 231, an air inlet pipe 232, a fixed bevel gear 233, a support plate 234, a rotary air supply pipe 235, a movable bevel gear 236, an air vent 237, an air blowing pipe 238 and an air outlet 239. The bottom of the bulk material impeller 225 is fixedly connected with the rotary air tank 231. The upper end of the air inlet pipe 232 passes through the bottom plate of the flotation tank 211 and the bottom plate of the rotary air tank 231. The air inlet pipe 232 is rotatably connected to the rotary air tank 231. The air inlet pipe 232 is fixedly connected to the flotation tank 211. The air inlet pipe 232 is communicated with the rotary air tank 231. The lower end of the air inlet pipe 232 passes through the lower end of the tank body 1. The upper end of the air inlet pipe 232 is fixedly connected with the fixed bevel gear 233. The top of the rotary air tank 231 above the air inlet pipe 232 is fixedly connected with a support plate 234. A set of rotating air supply pipes 235 are rotatably connected to the left and right side walls of the two ends, and the two sets of rotating air supply pipes 235 pass through the left and right ends of the rotating gas tank 231 respectively and are rotatably connected to the rotating gas tank 231. A set of movable bevel gears 236 are fixedly connected to the rotating air supply pipes 235 above the fixed bevel gear 233, and the two sets of movable bevel gears 236 are meshed and connected with the fixed bevel gear 233. A plurality of air vents 237 are provided on the parts of the two sets of rotating air supply pipes 235 located inside the rotating gas tank 231, and the rotating gas tank 231 is connected to the rotating air supply pipes 235 through the air vents 237. The parts of the two sets of rotating air supply pipes 235 located outside the rotating gas tank 231 are fixedly connected to a plurality of blowing pipes 238, and the blowing pipes 238 are connected to the rotating air supply pipes 235, and a plurality of air outlet holes 239 are provided on the blowing pipes 238;

[0043] When coal washing is required, the raw materials are fed into the feeding barrel 221 through the feeding pipe 222, and the motor 223 is started at this time. The motor 223 drives the auger 224 to rotate, and the auger 224 drives the bulk impeller 225 to rotate. The raw materials are continuously fed to the bulk impeller 225 below the feeding barrel 221 through the auger 224. While the bulk impeller 225 rotates, the raw materials are scattered around and sprinkled into the flotation tank 211. While the bulk impeller 225 rotates, it drives the rotating gas tank 231 to rotate, and the rotating gas tank 231 drives the raw materials to rotate. The two sets of rotating air supply pipes 235 are driven to rotate around the upper end of the air inlet pipe 232, and the rotating air supply pipe 235 drives the moving bevel gear 236 to rotate around the fixed bevel gear 233. Since the moving bevel gear 236 is meshed and connected with the fixed bevel gear 233, the moving bevel gear 236 rotates around the fixed bevel gear 233 and drives the rotating air supply pipe 235 to rotate under the limit support of the support plate 234, so that the rotating air supply pipe 235 drives the blowing pipe 238 to rotate around the upper end of the air inlet pipe 232 and rotate around the rotating air supply pipe 23 5 rotates, and gas is introduced into the rotating gas tank 231 through the air inlet pipe 232, and the gas enters the rotating air supply pipe 235 through the air vent 237, and the gas enters the blowing pipe 238 through the rotating air supply pipe 235 and is ejected through the air outlet 239, so that the air outlet 239 can continuously stir the raw materials under the flotation tank 211 while injecting gas from all directions, so that the gas and the raw materials are evenly mixed, and because the bulk material impeller 225 is located above the air vent 237, The newly added raw material is stirred by the vent 237 for the first time and is fully mixed with the gas ejected from the vent 237, thereby improving the efficiency of flotation. The gas and the raw material are mixed to form bubbles, and the coal component in the raw material is driven up by the bubbles and enters the interior of the centrifugal filter device 3 for filtration under the guidance of the annular guide plate 212. The finished product after filtration falls on the clean coal discharge port 214 and is discharged through the clean coal discharge port 214, and the remaining impurities at the lower end of the flotation tank 211 are discharged through the residue discharge pipe 213.

[0044] Example 2

[0045] like Figure 1-Figure 7 As shown, as a preferred embodiment of the present invention, the centrifugal filter device 3 includes a speed change assembly 31 and a centrifugal filter assembly 32, the output end of the motor 223 above the feed barrel 221 is connected to the speed change assembly 31, the upper end of the feed barrel 221 is connected to the speed change assembly 31, the lower end of the speed change assembly 31 is connected to the centrifugal filter assembly 32, the inner end of the centrifugal filter assembly 32 is connected to the outer wall of the flotation tank 211, and the outer end of the centrifugal filter assembly 32 is connected to the inner wall of the tank body 1;

[0046] The speed change assembly 31 includes a first gear 311, a second gear 312, a rotating rod 313, a third gear 314, a fourth gear 315 and a rotating disk 316. The output end of the motor 223 above the feeding barrel 221 passes through the first gear 311 and is fixedly connected to the first gear 311. The rotating rod 313 is rotatably connected to the tank body 1 on the right side of the first gear 311. The upper end of the rotating rod 313 is fixedly connected to the second gear 312. The second gear 312 is meshed and connected with the first gear 311. The lower end of the rotating rod 313 is fixedly connected with a third gear 314, and the upper end outer wall of the feeding cylinder 221 is rotatably connected with a fourth gear 315 and a rotating disk 316, the fourth gear 315 is fixedly connected with the rotating disk 316, the fourth gear 315 is meshedly connected with the third gear 314, the circumference of the first gear 311 is greater than the circumference of the second gear 312, the circumference of the third gear 314 is greater than the circumference of the fourth gear 315, and the bottom outer end of the rotating disk 316 is connected with a centrifugal filter assembly 32;

[0047] The centrifugal filtering assembly 32 includes a rotating drum 321, a connecting rod 322, a centrifugal baffle 323, a sieve plate 324 and a water outlet 325. The rotating drum 321 is rotatably connected to the outer wall of the flotation tank 211 below the annular guide plate 212, and a plurality of groups of connecting rods 322 are fixedly connected to the bottom outer end of the turntable 316. The lower ends of the connecting rods 322 are fixedly connected to the rotating drum 321. A plurality of groups of centrifugal baffles 323 are fixedly connected to the outer wall of the rotating drum 321. A sieve plate 324 is fixedly connected to the inner wall of the tank body 1 outside the centrifugal baffle 323, and a water outlet 325 is provided at the lower end of the side wall of the tank body 1 outside the sieve plate 324.

[0048] Example 3

[0049] like Figure 1-Figure 7 As shown, as a preferred embodiment of the present invention, the centrifugal baffle 323 is an inclined arc plate;

[0050] When the motor 223 operates to float the raw materials, the motor 223 drives the first gear 311 to rotate, the first gear 311 drives the second gear 312 to rotate, the second gear 312 drives the third gear 314 to rotate through the rotating rod 313, the third gear 314 drives the turntable 316 to rotate through the fourth gear 315, the turntable 316 drives the rotating drum 321 to rotate through the connecting rod 322, and the connecting rod 322 drives all the centrifugal baffles 323 to rotate. At this time, the raw materials inside the flotation tank 211 are floated and sent to the centrifugal baffles 323 between the rotating drum 321 and the sieve plate 324 through the annular guide plate 212. At this time, the connecting rod 322 drives the centrifugal baffles 323 to rotate to centrifuge the raw materials after flotation. When the raw materials are centrifuged, water is filtered out through the sieve plate 324 to obtain the final product. The water passes through the water outlet 325 Since the centrifugal baffle 323 is an inclined arc-shaped plate, the centrifugal baffle 323 can squeeze the product downward and discharge it through the clean coal discharge port 214 while centrifugally filtering the raw materials after flotation. Since the circumference of the first gear 311 is greater than the circumference of the second gear 312, and the circumference of the third gear 314 is greater than the circumference of the fourth gear 315, the rotation speed of the fourth gear 315 is greater than the rotation speed of the auger 224, and then the rotation speed of the drum 321 is greater than the rotation speed of the auger 224, so that the motor 223 drives the auger 224 to rotate normally and drives the drum 321 to rotate at a high speed for centrifugation, so that a group of motors 223 can feed, stir and centrifugally filter the raw materials at the same time, which greatly saves energy loss, and there is no need to send the raw materials after flotation to the centrifuge for centrifugal filtration, which is simple and convenient to operate.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An energy-saving filtering coal washer, comprising a tank body (1), characterized in that: The upper and lower ends of the tank body (1) are connected to a mixed flotation assembly (2) for fully mixing gas and raw materials for flotation; The outer end of the mixed flotation assembly (2) is connected to a centrifugal filter device (3) for working in conjunction with the mixed flotation assembly (2) to filter the product of the mixed flotation assembly (2), and the outer end of the centrifugal filter device (3) is connected to the tank body (1); The mixed flotation assembly (2) comprises a flotation discharge assembly (21), a dispersed feed assembly (22) and a rotary stirring air supply assembly (23); the lower end of the tank body (1) is connected to the flotation discharge assembly (21); the upper end of the tank body (1) is connected to the dispersed feed assembly (22) for dispersedly feeding raw materials into the flotation discharge assembly (21); the lower end of the dispersed feed assembly (22) is connected to the rotary stirring air supply assembly (23) for stirring and blowing the raw materials at the lower end of the flotation discharge assembly (21); the lower end of the rotary stirring air supply assembly (23) passes through the lower end of the flotation discharge assembly (21) and the lower end of the tank body (1), and is connected to the flotation discharge assembly (21) and the tank body (1); The flotation discharge assembly (21) comprises a flotation tank (211), an annular guide plate (212), a residue discharge pipe (213) and a clean coal discharge port (214); the inner bottom of the tank body (1) is fixedly connected to the flotation tank (211) via a support column; the open outer wall of the flotation tank (211) is fixedly connected to the annular guide plate (212); the bottom of the flotation tank (211) is fixedly connected to the residue discharge pipe (213); the residue discharge pipe (213) passes through the bottom of the tank body (1) and is connected to the flotation tank (211); and the clean coal discharge port (214) is provided at the bottom of the tank body (1); The dispersed feeding assembly (22) comprises a feeding barrel (221), a feeding pipe (222), a motor (223), an auger (224) and a bulk material impeller (225); the feeding barrel (221) is fixedly connected to the middle of the upper end of the tank body (1); the upper end of the feeding barrel (221) is connected to the feeding pipe (222); the upper end of the feeding pipe (222) passes through the top plate of the tank body (1) and is fixedly connected to the tank body (1); the motor (223) is fixedly connected to the top of the tank body (1) above the feeding barrel (221); The output end of the motor (223) passes through the top plate of the tank body (1) and the top plate of the feeding barrel (221) and is fixedly connected to an auger (224); the output end of the motor (223) is rotatably connected to the feeding barrel (221); the auger (224) is located inside the feeding barrel (221); a bulk material impeller (225) is fixedly connected to the bottom of the auger (224); the bulk material impeller (225) is located below the feeding barrel (221); and a rotating stirring air supply component (23) is fixedly connected to the bottom of the bulk material impeller (225); The rotary stirring air supply assembly (23) comprises a rotary air tank (231), an air inlet pipe (232), a fixed bevel gear (233), a support plate (234), a rotary air supply pipe (235), a movable bevel gear (236), an air vent (237), an air blowing pipe (238) and an air outlet (239); the bottom of the bulk material impeller (225) is fixedly connected to the rotary air tank (231); the upper end of the air inlet pipe (232) passes through the bottom plate of the flotation tank (211) and the rotary air tank (231). The air intake pipe (232) is rotatably connected to the rotating gas tank (231), the air intake pipe (232) is fixedly connected to the flotation tank (211), the air intake pipe (232) is in communication with the rotating gas tank (231), the lower end of the air intake pipe (232) passes through the lower end of the tank body (1), the upper end of the air intake pipe (232) is fixedly connected to a fixed bevel gear (233), and the top of the rotating gas tank (231) above the air intake pipe (232) is fixedly connected to a support plate (234). ), a group of rotating air supply pipes (235) are rotatably connected to the left and right side walls of the lower end of the support plate (234), the two groups of rotating air supply pipes (235) respectively pass through the left and right ends of the rotating air tank (231) and are rotatably connected to the rotating air tank (231), a group of movable bevel gears (236) are fixedly connected to the rotating air supply pipes (235) above the fixed bevel gear (233), the two groups of movable bevel gears (236) are meshedly connected to the fixed bevel gear (233), and the two groups of rotating air supply pipes (235) A plurality of groups of vent holes (237) are provided on the portion located inside the rotating gas tank (231), the rotating gas tank (231) and the rotating air supply pipe (235) are connected via the vent holes (237), and a plurality of groups of air blowing pipes (238) are fixedly connected to the portions of the two groups of rotating air supply pipes (235) located outside the rotating gas tank (231), the air blowing pipes (238) are connected to the rotating air supply pipes (235), and the air blowing pipes (238) are provided with a plurality of groups of air outlet holes (239); The outer wall of the flotation tank (211) is connected to a centrifugal filter device (3), the output end of the motor (223) above the feeding cylinder (221) is connected to the centrifugal filter device (3), and the upper end of the feeding cylinder (221) is connected to the centrifugal filter device (3); The centrifugal filtering device (3) comprises a speed change assembly (31) and a centrifugal filtering assembly (32); the output end of the motor (223) above the feeding cylinder (221) is connected to the speed change assembly (31); the upper end of the feeding cylinder (221) is connected to the speed change assembly (31); the lower end of the speed change assembly (31) is connected to the centrifugal filtering assembly (32); the inner end of the centrifugal filtering assembly (32) is connected to the outer wall of the flotation tank (211); and the outer end of the centrifugal filtering assembly (32) is connected to the inner wall of the tank body (1); The speed change assembly (31) comprises a first gear (311), a second gear (312), a rotating rod (313), a third gear (314), a fourth gear (315) and a rotating disk (316); the output end of the motor (223) above the feeding cylinder (221) passes through the first gear (311) and is fixedly connected to the first gear (311); the rotating rod (313) is rotatably connected to the tank body (1) on the right side of the first gear (311); the upper end of the rotating rod (313) is fixedly connected to the second gear (314). 12), the second gear (312) is meshedly connected with the first gear (311), the lower end of the rotating rod (313) is fixedly connected with the third gear (314), the upper end outer wall of the feeding cylinder (221) is rotatably connected with a fourth gear (315) and a rotating disk (316), the fourth gear (315) is fixedly connected with the rotating disk (316), the fourth gear (315) is meshedly connected with the third gear (314), and the bottom outer end of the rotating disk (316) is connected with a centrifugal filter assembly (32); The centrifugal filter assembly (32) comprises a rotating drum (321), connecting rods (322), centrifugal baffles (323), a sieve plate (324) and a water outlet (325); the rotating drum (321) is rotatably connected to the outer wall of the flotation tank (211) below the annular guide plate (212); a plurality of groups of connecting rods (322) are fixedly connected to the outer end of the bottom of the rotating disk (316); the lower ends of the connecting rods (322) are fixedly connected to the rotating drum (321); a plurality of groups of centrifugal baffles (323) are fixedly connected to the outer wall of the rotating drum (321); a sieve plate (324) is fixedly connected to the inner wall of the tank body (1) outside the centrifugal baffles (323); and a water outlet (325) is provided at the lower end of the side wall of the tank body (1) outside the sieve plate (324).

2. The energy-saving filtering coal washer according to claim 1, characterized in that: The circumference of the first gear (311) is greater than the circumference of the second gear (312), and the circumference of the third gear (314) is greater than the circumference of the fourth gear (315).

3. The energy-saving filtering coal washer according to claim 1, characterized in that: The centrifugal baffle (323) is an inclined arc-shaped plate.

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