Coal crushing device for thermal power plant

Abstract

The invention relates to the technical field of coal crushing devices, and discloses a coal crushing device for a thermal power plant, the coal crushing device comprises a main frame mechanism, the main frame mechanism comprises a crushing box, the crushing box is internally provided with a crushing assembly, the bottom of the crushing assembly is provided with a filtering assembly, and the top of the crushing box is provided with a dust collecting assembly; and the crushing assembly comprises a second motor, the outer surface of the second motor is fixedly connected with a motor support, the right side of the motor support is fixedly connected with the left side of a crushing box, two crushing rollers are arranged in the crushing box, and the interiors of the two crushing rollers are fixedly connected with third rotating shafts. A motor I is started to work to drive a rotating shaft III to rotate, the rotating shaft III rotates to drive two crushing rollers to rotate relatively and crush crushed coal briquettes, and the crushed coal briquettes are crushed again, so that the crushing effect on the coal briquettes is greatly improved, and the practicability of the equipment is greatly improved; and meanwhile, the yield of products is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of coal pulverizing device equipment, in particular to a coal pulverizing device used in a thermal power plant. Background Art

[0002] When a power plant generates electricity through coal, it has high requirements on the quality of coal. The particle size and dryness of the coal will have a great impact on the economy and reliability of coal combustion. Therefore, the crushing device for coal used in thermal power generation is of paramount importance. However, most of the current crushing equipment only crushes by simple extrusion. Some coal blocks are too large to be completely crushed and clog on the surface of the crushing mechanism. The subsequent added coal blocks will not be able to be crushed, and the accumulation of them will greatly reduce the crushing effect of the equipment. At the same time, it greatly reduces the practicability of the equipment, greatly reduces the yield rate of the product, and greatly reduces the power generation efficiency of the power plant. For this reason, a coal crushing device for a thermal power plant is proposed. Summary of the invention

[0003] The object of the present invention is to provide a coal pulverizing device for a thermal power plant to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a coal pulverizing device for a thermal power plant, comprising a main frame mechanism, the main frame mechanism comprising a pulverizing box, a discharge port 1 is fixedly connected to the bottom of the left side of the pulverizing box, a discharge port 2 is fixedly connected to the bottom of the right side of the pulverizing box, a feed port is fixedly connected to the right side of the top of the pulverizing box, a discharge port 3 is arranged on the top of the pulverizing box, a pulverizing assembly is arranged inside the pulverizing box, a filter assembly is arranged at the bottom of the pulverizing assembly, a dust collecting assembly is arranged on the top of the pulverizing box, the pulverizing assembly comprises a motor 2, a motor bracket is fixedly connected to the outer surface of the motor 2, the right side of the motor bracket is fixedly connected to the left side of the pulverizing box, two pulverizing rollers are arranged inside the pulverizing box, a rotating shaft 3 is fixedly connected to the inside of the two pulverizing rollers, the two rotating shafts 3 are rotatably connected to the left and right sides of the pulverizing box, the two rotating shafts 3 penetrate the pulverizing box and extend to the left and right sides, the right side output end of the motor 2 is fixedly connected to the left side of the rotating shaft 3 located at the back through a coupling, the right sides of the outer surfaces of the two rotating shafts 3 are fixedly connected to gears, and the two gears The outer surfaces of the wheels are meshed and connected, and a rotating shaft four is arranged on the top of the two crushing rollers, and a plurality of stirring rods are fixedly connected to the outer surface of the rotating shaft four, and the left and right sides of the outer surface of the rotating shaft four are rotatably connected to the left and right sides of the inside of the crushing box, and the rotating shaft four penetrates the crushing box and extends to the left side, and a pulley four is arranged on the left side of the crushing box, and the inside of the pulley four is fixedly connected to the left side of the outer surface of the rotating shaft three, and the outer surface of the pulley four is transmission-connected with a belt two, and the end of the belt two away from the pulley four is transmission-connected with a pulley three, and the inside of the pulley three is fixedly connected to the left side of the outer surface of the rotating shaft four, and the starting motor one is driven to work and drive the rotating shaft three to rotate, and the rotating shaft three will drive the stirring rods to rotate together and crush the coal blocks, and the larger coal blocks will be convenient for subsequent crushing after being crushed, and the crushed coal blocks will fall between the crushing rollers below, and the rotating shaft three will drive the two crushing rollers to rotate relative to each other and crush the crushed coal blocks, and the crushing effect of the coal blocks is greatly improved by crushing the coal blocks.

[0005] Furthermore, the filtering assembly includes a conveying cylinder, a motor 1 is fixedly connected to the bottom of the conveying cylinder, a rotating shaft 2 is rotatably connected inside the conveying cylinder, an auger is fixedly connected to the outer surface of the rotating shaft 2, the top of the outer surface of the conveying cylinder is fixedly connected to the right side of the discharge port 3, the top output end of the motor 1 is fixedly connected to the bottom of the rotating shaft 2 through a coupling, and a V-shaped filter is arranged at the bottom of the two crushing rollers. The coal blocks that do not meet the crushing standards will be discharged from the discharge port 2 through the action of the guide plate 1, and then discharged from the conveying cylinder through the discharge port 2. At the same time, the motor 1 will drive the rotating shaft 2 to rotate while it is working, and the auger will rotate along with the rotation of the rotating shaft 2 and convey the coal blocks. The conveyed coal blocks will fall into the feed port again through the discharge port 3 and will be crushed again.

[0006] Furthermore, a guide plate 1 is fixedly connected to the top of the V-shaped filter, a guide plate 2 is fixedly connected to the bottom of the inner wall of the V-shaped filter, the front and back sides of the right side of the inner wall of the crushing box are fixedly connected to limit plates, and the corresponding sides inside the two limit plates are rotatably connected to the right side of the inside of the V-shaped filter through a pin shaft, a supporting slat is fixedly connected to the left side of the inner wall of the crushing box, and a plurality of springs are fixedly connected to the top of the inner wall of the V-shaped filter, and the top of the inner wall of the V-shaped filter is fixedly connected to the tops of the plurality of springs. The springs will be squeezed while the V-shaped filter moves, and the springs will generate a certain rebound force through the limiting effect of the supporting slats and drive the V-shaped filter to reset, thereby further enhancing the vibration effect of the V-shaped filter.

[0007] Furthermore, a pulley 1 is provided on the left side of the pulley 4, the interior of the pulley 1 is fixedly connected to the left side of the outer surface of the rotating shaft 3, the outer surface of the pulley 1 is transmission-connected with a belt 1, the side of the belt 1 away from the pulley 1 is transmission-connected with a pulley 2, the pulley 2 is fixedly connected with a rotating shaft 1, the outer surface of the rotating shaft 1 is rotationally connected to the left side of the inside of the crushing box, the rotating shaft 1 penetrates the left side of the crushing box and extends to the inside, the right side of the rotating shaft 1 is fixedly connected to a turntable, the right side of the turntable is rotationally connected to a support rod through a pin shaft, and the top of the support rod is rotationally connected to A limiting bracket, the top of which is fixedly connected to the top of the inner wall of the V-shaped filter, the left side of the conveying cylinder is fixedly connected to the right side of the discharge port 2, and the rotation of the rotating shaft 3 will drive the pulley 1 to rotate. Therefore, the rotation of the belt 1 through the pulley 1 will drive the pulley 2 to rotate together, and the rotating shaft 1 will also rotate together through the rotation of the pulley 2 and drive the turntable to rotate. At the same time, since the support rod is rotatably connected to the center of the turntable, when the turntable rotates, it will pull the support rod to reciprocate up and down, and the limiting bracket will drive the V-shaped filter to reciprocate up and down through the reciprocating motion of the support rod and achieve a vibration effect.

[0008] Furthermore, the dust collecting assembly includes a dust exhaust pipe, the bottom of the dust exhaust pipe is fixedly connected to the left side of the top of the crushing box, the bottom of the inner wall of the dust exhaust pipe is fixedly connected to a support frame 2, the support frame 2 is rotatably connected to a rotating shaft 6, a plurality of fan blades are arranged on the top of the support frame 2, and the corresponding side of the plurality of fan blades is fixedly connected to the top of the outer surface of the rotating shaft 6, the bottom of the outer surface of the rotating shaft 6 is fixedly connected with a bevel gear 1, and the outer surface of the bevel gear 1 is meshingly connected with a bevel gear 2, and when the rotating shaft 5 rotates, the bevel gear 2 will be driven to rotate, and when the bevel gear 2 rotates, the bevel gear 1 will be driven to rotate together, and then the rotating shaft 6 will drive the fan blades to rotate through the rotation of the bevel gear 1, and when the fan blades rotate, a large amount of air volume will be generated to absorb the dust inside the crushing box, and the flying dust absorbed by the fan blades will be discharged through the dust exhaust pipe, and then collected and purified.

[0009] Furthermore, a pulley six is ​​provided on the left side of the rotating shaft three, and the interior of the pulley six is ​​fixedly connected to the left side of the outer surface of the rotating shaft four, the outer surface of the pulley six is ​​transmission connected to the belt three, and the end of the belt three away from the pulley six is ​​transmission connected to the pulley five, the pulley five is fixedly connected to the rotating shaft five, and the outer surface of the rotating shaft five is rotatably connected to the support frame one, the bottom of the support frame one is fixedly connected to the left side of the top of the crushing box, the rotating shaft five penetrates the dust exhaust pipe and extends to the interior, and the right side of the outer surface of the rotating shaft five is fixedly connected to the interior of the bevel gear two, and the rotation of the rotating shaft four will drive the pulley six to rotate, and the rotation of the pulley six will drive the belt three to rotate together, and the pulley five will drive the rotating shaft five to rotate through the rotation of the belt three.

[0010] The present invention has the following beneficial effects: (1) The present invention starts the motor 1 to work and drives the rotating shaft 3 to rotate. When the rotating shaft 3 rotates, it will drive the stirring rod to rotate together and break up the coal blocks. After the larger coal blocks are broken up, it is convenient for the subsequent crushing work. The broken coal blocks fall between the crushing rollers below. At the same time, when the rotating shaft 3 rotates, it will drive the two crushing rollers to rotate relative to each other and crush the broken coal blocks. By breaking up the coal blocks and then crushing them, the crushing effect of the coal blocks is greatly improved, the practicality of the equipment is greatly improved, and the product yield is greatly improved.

[0011] (2) When the turntable of the present invention rotates, it will pull the V-shaped filter to move up and down and squeeze the spring. The spring will generate a certain rebound force and drive the V-shaped filter to reset, further improving the vibration effect of the V-shaped filter. After the coal blocks are vibrated, filtered and screened by the V-shaped filter, the coal blocks that do not meet the crushing standards will be discharged from the conveying cylinder through the action of the guide plate 1. At the same time, the motor 1 will drive the auger to rotate and convey the coal blocks. The conveyed coal blocks will fall into the feed port again through the discharge port 3 and will be crushed again. The automated screening and filtering process greatly reduces the labor of the staff in the subsequent processing of the coal blocks. The setting of automatically screening the coal blocks that do not meet the standards and crushing them again further improves the crushing effect of the equipment and also greatly improves the work progress.

[0012] (3) When the rotating shaft 4 of the present invention rotates, it will also drive the pulley 5 to rotate. When the pulley 5 rotates, it will also drive the rotating shaft 5 to rotate together. When the rotating shaft 5 rotates, it will also drive the bevel gear 1 to rotate together. Then, the rotating shaft 6 will drive the fan blades to rotate through the bevel gear 1. When the fan blades rotate, a large amount of air will be generated and the dust inside the crushing box will be absorbed. The flying dust absorbed by the fan blades will be discharged through the dust exhaust pipe and then collected and purified. This greatly improves the practicality and cleanliness of the equipment, greatly improves the physical and mental health of the staff around the equipment, and greatly reduces the harmfulness of the working environment.

[0013] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the gear structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the crushing box of the present invention; Figure 4 This is a schematic diagram of the structure of the crushing roller of the present invention; Figure 5 It is a schematic diagram of the V-type filter structure of the present invention; Figure 6 For the present invention Figure 5 A is a schematic diagram of the enlarged structure of the middle part; Figure 7 It is a schematic diagram of the cross-sectional structure of the conveying tube of the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the dust exhaust pipe of the present invention; Fig. 9 For the present invention Figure 8 Schematic diagram of the enlarged structure of B; In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1. main frame mechanism; 111. crushing box; 112. discharge port 1; 113. discharge port 2; 114. discharge port 3; 115. feed port; 2. filter assembly; 211. conveying cylinder; 212. motor 1; 213. V-type filter; 214. guide plate 1; 215. guide plate 2; 216. pulley 1; 217. belt 1; 218. support slat; 219. pulley 2; 220. rotating shaft 1; 221. spring; 222. turntable; 223. limit plate; 224. support rod; 225. limit bracket; 226. auger; 227 , shaft two; 3, crushing assembly; 311, motor two; 312, motor bracket; 313, gear; 314, shaft three; 315, pulley three; 316, shaft four; 317, stirring rod; 318, crushing roller; 319, pulley four; 320, belt two; 4, dust collecting assembly; 411, dust exhaust pipe; 412, pulley five; 413, belt three; 414, pulley six; 415, shaft five; 416, support frame one; 417, fan blade; 418, bevel gear one; 419, shaft six; 420, support frame two; 421, bevel gear two. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0017] See also Figure 1-Figure 9 As shown, the present invention is a coal pulverizing device for a thermal power plant, the present invention is a coal pulverizing device for a thermal power plant, comprising a main frame mechanism 1, the main frame mechanism 1 comprising a pulverizing box 111, a discharge port 1 112 is fixedly connected to the bottom of the left side of the pulverizing box 111, a discharge port 2 113 is fixedly connected to the bottom of the right side of the pulverizing box 111, a feed port 115 is fixedly connected to the right side of the top of the pulverizing box 111, a discharge port 3 114 is arranged on the top of the pulverizing box 111, a pulverizing assembly 3 is arranged inside the pulverizing box 111, a filtering assembly 2 is arranged at the bottom of the pulverizing assembly 3, and a dust collecting assembly 4 is arranged on the top of the pulverizing box 111.

[0018] The crushing assembly 3 includes a motor 2 311, a motor bracket 312 is fixedly connected to the outer surface of the motor 2 311, the right side of the motor bracket 312 is fixedly connected to the left side of the crushing box 111, two crushing rollers 318 are arranged inside the crushing box 111, the two crushing rollers 318 are fixedly connected to the inside of the three shafts 314, the two three shafts 314 are rotatably connected to the left and right sides of the crushing box 111, the two three shafts 314 penetrate the crushing box 111 and extend to the left and right sides, the right side output end of the motor 2 311 is fixedly connected to the left side of the three shafts 314 located on the back through a coupling, the right sides of the outer surfaces of the two three shafts 314 are fixedly connected to gears 313, and the outer surfaces of the two gears 313 are meshed.

[0019] A rotating shaft 4 316 is provided on the top of the two crushing rollers 318, and a plurality of stirring rods 317 are fixedly connected to the outer surface of the rotating shaft 4 316, and the left and right sides of the outer surface of the rotating shaft 4 316 are rotatably connected to the left and right sides inside the crushing box 111, the rotating shaft 4 316 penetrates the crushing box 111 and extends to the left side, and a pulley 4 319 is provided on the left side of the crushing box 111, and the interior of the pulley 4 319 is fixedly connected to the left side of the outer surface of the rotating shaft 3 314, and the outer surface of the pulley 4 319 is transmission-connected with the belt 2 320, and the end of the belt 2 320 away from the pulley 4 319 is transmission-connected with the pulley 3 315, and the interior of the pulley 3 315 is fixedly connected to the left side of the outer surface of the rotating shaft 4 316.

[0020] The starting motor 212 drives the rotating shaft 314 to rotate. The rotating shaft 314 also drives the stirring rod 317 to rotate and break up the coal blocks. The larger coal blocks are broken up to facilitate the subsequent crushing work. The crushed coal blocks fall between the crushing rollers 318 below. At the same time, the rotating shaft 314 drives the two crushing rollers 318 to rotate relative to each other and crush the broken coal blocks. By breaking up the coal blocks and then crushing them, the crushing effect of the coal blocks is greatly improved, the practicability of the equipment is greatly improved, and the yield rate of the product is greatly improved.

[0021] The filtering assembly 2 includes a conveying cylinder 211, a motor 212 is fixedly connected to the bottom of the conveying cylinder 211, a rotating shaft 227 is rotatably connected inside the conveying cylinder 211, an auger 226 is fixedly connected to the outer surface of the rotating shaft 227, the top of the outer surface of the conveying cylinder 211 is fixedly connected to the right side of the discharge port 3 114, the top output end of the motor 212 is fixedly connected to the bottom of the rotating shaft 227 through a coupling, and a V-shaped filter 213 is arranged at the bottom of the two crushing rollers 318.

[0022] When the turntable 222 rotates, it will pull the V-shaped filter 213 to reciprocate up and down and squeeze the spring 221. The spring 221 will produce a certain rebound force and drive the V-shaped filter 213 to reset, further improving the vibration effect of the V-shaped filter 213. After the coal blocks are vibrated, filtered and screened by the V-shaped filter 213, the coal blocks that do not meet the crushing standards will be discharged from the conveying cylinder 211 through the action of the guide plate 214. At the same time, the motor 212 will drive the auger 226 to rotate and convey the coal blocks. The conveyed coal blocks will pass through the discharge port 3 114 and fall into the feed port 115 again, and will be crushed again. The automated screening and filtering program greatly reduces the labor of the staff in subsequent processing of the coal blocks. The setting of automatically screening the coal blocks that do not meet the standards and crushing them again further improves the crushing effect of the equipment, and also greatly improves the work progress.

[0023] A guide plate 1 214 is fixedly connected to the top of the V-shaped filter 213, a guide plate 215 is fixedly connected to the bottom of the inner wall of the V-shaped filter 213, the front and back sides of the right side of the inner wall of the crushing box 111 are fixedly connected to limit plates 223, the corresponding sides inside the two limit plates 223 are rotatably connected to the right side of the V-shaped filter 213 through a pin, a support strip 218 is fixedly connected to the left side of the inner wall of the crushing box 111, a plurality of springs 221 are fixedly connected to the top of the support strip 218, and the top of the inner wall of the V-shaped filter 213 is fixedly connected to the tops of the plurality of springs 221.

[0024] A pulley 216 is provided on the left side of pulley four 319, and the interior of pulley one 216 is fixedly connected to the left side of the outer surface of rotating shaft three 314, the outer surface of pulley one 216 is transmission connected with belt one 217, and the side of belt one 217 away from pulley one 216 is transmission connected with pulley two 219, and the interior of pulley two 219 is fixedly connected with rotating shaft one 220, and the outer surface of rotating shaft one 220 is rotationally connected to the left side of the inside of crushing box 111, rotating shaft one 220 penetrates the left side of the inside of crushing box 111 and extends to the inside, and a turntable 222 is fixedly connected to the right side of rotating shaft one 220, and the right side of rotating shaft 222 is rotationally connected with support rod 224 through a pin shaft, and the top of the support rod 224 is rotationally connected to a limiting bracket 225 through a pin shaft, and the top of the limiting bracket 225 is fixedly connected to the top of the inner wall of the V-shaped filter 213, and the left side of the conveying cylinder 211 is fixedly connected to the right side of the discharge port two 113.

[0025] The dust collecting assembly 4 includes a dust exhaust pipe 411, the bottom of which is fixedly connected to the left side of the top of the crushing box 111, the bottom of the inner wall of the dust exhaust pipe 411 is fixedly connected to a support frame 2 420, the support frame 2 420 is internally rotatably connected to a rotating shaft 6 419, a plurality of fan blades 417 are arranged on the top of the support frame 2 420, and the corresponding side of the plurality of fan blades 417 is fixedly connected to the top of the outer surface of the rotating shaft 6 419, the bottom of the outer surface of the rotating shaft 6 419 is fixedly connected to a bevel gear 1 418, the outer surface of the bevel gear 1 418 is meshedly connected to a bevel gear 2 421, and the rotating shaft 4 316 will drive the pulley 5 419 while rotating 2 rotates, the rotation of the pulley five 412 will drive the shaft five 415 to rotate together, and the rotation of the shaft five 415 will drive the bevel gear one 418 to rotate together, then the rotation of the shaft six 419 through the bevel gear one 418 will drive the fan blade 417 to rotate, and the rotation of the fan blade 417 will generate a large amount of air volume and absorb the dust inside the crushing box 111, and the flying dust absorbed by the fan blade 417 will be discharged through the dust exhaust pipe 411, and will be collected and purified later, which greatly improves the practicability and cleanliness of the equipment, greatly improves the physical and mental health of the staff around the equipment, and greatly reduces the harmfulness of the working environment.

[0026] A pulley six 414 is provided on the left side of the rotating shaft three 314, the interior of the pulley six 414 is fixedly connected to the left side of the outer surface of the rotating shaft four 316, the outer surface of the pulley six 414 is drivingly connected to the belt three 413, the end of the belt three 413 away from the pulley six 414 is drivingly connected to the pulley five 412, the interior of the pulley five 412 is fixedly connected to the rotating shaft five 415, the outer surface of the rotating shaft five 415 is rotatably connected to the support frame one 416, the bottom of the support frame one 416 is fixedly connected to the left side of the top of the crushing box 111, the rotating shaft five 415 penetrates the dust exhaust pipe 411 and extends to the interior, and the right side of the outer surface of the rotating shaft five 415 is fixedly connected to the interior of the bevel gear two 421.

[0027] When in use, the staff first starts the motor 1 212 and the motor 2 311 to work, and then pours the coal blocks into the crushing box 111 from the feed port 115. When the motor 2 311 is working, it will drive the rotating shaft 314 to rotate. When the rotating shaft 314 rotates, it will drive the pulley 4 319 to rotate together. Then the belt 2 320 will drive the pulley 3 315 to rotate through the rotation of the pulley 4 319. Then the rotating shaft 4 316 will drive the stirring rod 317 to rotate together through the rotation of the pulley 3 315 and break the coal blocks. After the larger coal blocks are broken, it is convenient for subsequent crushing work. The broken coal blocks fall between the crushing rollers 318 below. At the same time, when the rotating shaft 314 rotates, it will drive the two gears 313 to rotate relative to each other. Then the two crushing rollers 318 will also rotate relative to each other through the rotation of the gears 313 and crush the broken coal blocks.

[0028] By breaking up the coal blocks and then pulverizing them, the pulverizing effect of the coal blocks is greatly improved, the practicality of the equipment is greatly improved, and the yield rate of the product is greatly improved. The pulverized coal blocks continue to fall to the top of the V-shaped filter 213. Since the rotation of the rotating shaft 314 will drive the pulley 1 216 to rotate, the belt 1 217 will drive the pulley 2 219 to rotate together through the rotation of the pulley 1 216, and the rotating shaft 1 220 will also rotate together through the rotation of the pulley 2 219 and drive the turntable 222 to rotate. At the same time, since the support rod 224 is rotatably connected to the eccentric part of the turntable 222, when the turntable 222 rotates, it will pull the support rod 224 to reciprocate up and down, then The reciprocating motion of the limit bracket 225 through the support rod 224 will drive the V-shaped filter 213 to reciprocate up and down and achieve a vibration effect. At the same time, the V-shaped filter 213 will squeeze the spring 221 while moving. The spring 221 will generate a certain rebound force through the limiting effect of the support strip 218 and drive the V-shaped filter 213 to reset, further improving the vibration effect of the V-shaped filter 213. After the coal blocks are vibrated, filtered and screened by the V-shaped filter 213, the coal blocks that meet the crushing standards fall under the V-shaped filter 213 and are discharged into the discharge port 112 through the action of the guide plate 215, and then discharged from the crushing box 111 through the discharge port 112 for collection.

[0029] The coal blocks that do not meet the crushing standards will be discharged from the discharge port 2 113 through the action of the guide plate 1 214, and then discharged from the conveying cylinder 211 through the discharge port 2 113. At the same time, the motor 1 212 will drive the rotating shaft 227 to rotate while working, and the auger 226 will rotate along with the rotating shaft 227 and convey the coal blocks. The conveyed coal blocks will pass through the discharge port 3 114 and fall into the feed port 115 again, and will be crushed again. The automated screening and filtering program greatly reduces the workload of the staff in the subsequent processing of the coal blocks. The setting of automatically screening the coal blocks that do not meet the standards and crushing them again further improves the crushing effect of the equipment, and also greatly improves the work progress.

[0030] At the same time, when the rotating shaft four 316 rotates, it will drive the pulley six 414 to rotate, and when the pulley six 414 rotates, it will drive the belt three 413 to rotate together. Then, the pulley five 412 will drive the rotating shaft five 415 to rotate through the belt three 413. When the rotating shaft five 415 rotates, it will drive the bevel gear two 421 to rotate. When the bevel gear two 421 rotates, it will drive the bevel gear one 418 to rotate together. Then, the rotating shaft six 419 will drive the fan blade 417 to rotate through the bevel gear one 418. When the fan blade 417 rotates, a large amount of air volume will be generated to absorb the dust inside the crushing box 111. The flying dust absorbed by the fan blade 417 is discharged through the dust exhaust pipe 411, and then collected and purified, which greatly improves the practicality and cleanliness of the equipment, greatly improves the physical and mental health of the staff around the equipment, and greatly reduces the harmfulness of the working environment.

[0031] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A coal pulverizing device for a thermal power plant, comprising a main frame mechanism (1), the main frame mechanism (1) comprising a pulverizing box (111), a first discharge port (112) being fixedly connected to the bottom of the left side of the pulverizing box (111), a second discharge port (113) being fixedly connected to the bottom of the right side of the pulverizing box (111), a feed port (115) being fixedly connected to the right side of the top of the pulverizing box (111), a third discharge port (114) being arranged at the top of the pulverizing box (111), a pulverizing assembly (3) being arranged inside the pulverizing box (111), a filtering assembly (2) being arranged at the bottom of the pulverizing assembly (3), and a dust collecting assembly (4) being arranged at the top of the pulverizing box (111), characterized in that: The pulverizing assembly (3) comprises a second motor (311), the outer surface of the second motor (311) being fixedly connected to a motor bracket (312), the right side of the motor bracket (312) being fixedly connected to the left side of the pulverizing box (111), two pulverizing rollers (318) being arranged inside the pulverizing box (111), the insides of the two pulverizing rollers (318) being fixedly connected to a third rotating shaft (314), the two third rotating shafts (314) being rotatably connected to the left and right sides of the pulverizing box (111), the two third rotating shafts (314) passing through the pulverizing box (111) and extending to the left and right sides, the second motor (31 1) The right output end is fixedly connected to the left side of the rotating shaft three (314) located at the back through a coupling, the right sides of the outer surfaces of the two rotating shafts three (314) are fixedly connected to gears (313), the outer surfaces of the two gears (313) are meshingly connected, a rotating shaft four (316) is arranged on the top of the two crushing rollers (318), the outer surface of the rotating shaft four (316) is fixedly connected to a plurality of stirring rods (317), the left and right sides of the outer surface of the rotating shaft four (316) are rotatably connected to the left and right sides inside the crushing box (111), and the rotating shaft four (316) passes through the crushing box (111) and extends to the left side.

2. A coal pulverizing device for a thermal power plant according to claim 1, characterized in that: A pulley four (319) is provided on the left side of the crushing box (111), the interior of the pulley four (319) is fixedly connected to the left side of the outer surface of the rotating shaft three (314), the outer surface of the pulley four (319) is transmission-connected to the belt two (320), the interior of the belt two (320) away from the pulley four (319) is transmission-connected to the pulley three (315), and the interior of the pulley three (315) is fixedly connected to the left side of the outer surface of the rotating shaft four (316).

3. A coal pulverizing device for a thermal power plant according to claim 2, characterized in that: The filtering assembly (2) comprises a conveying cylinder (211), the bottom of the conveying cylinder (211) is fixedly connected to a motor 1 (212), the interior of the conveying cylinder (211) is rotatably connected to a rotating shaft 2 (227), the outer surface of the rotating shaft 2 (227) is fixedly connected to an auger (226), the top of the outer surface of the conveying cylinder (211) is fixedly connected to the right side of the discharge port 3 (114), the top output end of the motor 1 (212) is fixedly connected to the bottom of the rotating shaft 2 (227) via a coupling, and V-shaped filter screens (213) are provided at the bottoms of the two crushing rollers (318).

4. A coal pulverizing device for a thermal power plant according to claim 3, characterized in that: A guide plate 1 (214) is fixedly connected to the top of the V-shaped filter (213), a guide plate 2 (215) is fixedly connected to the bottom of the inner wall of the V-shaped filter (213), a limit plate (223) is fixedly connected to the front and back of the right side of the inner wall of the crushing box (111), and the corresponding sides inside the two limit plates (223) are rotatably connected to the right side of the inner wall of the V-shaped filter (213) through a pin shaft, a support strip (218) is fixedly connected to the left side of the inner wall of the crushing box (111), and a plurality of springs (221) are fixedly connected to the top of the support strip (218), and the top of the inner wall of the V-shaped filter (213) is fixedly connected to the tops of the plurality of springs (221).

5. A coal pulverizing device for a thermal power plant according to claim 4, characterized in that: A pulley 1 (216) is arranged on the left side of the pulley 4 (319); the interior of the pulley 1 (216) is fixedly connected to the left side of the outer surface of the rotating shaft 3 (314); the outer surface of the pulley 1 (216) is transmission-connected to a belt 1 (217); the interior of the belt 1 (217) away from the side of the pulley 1 (216) is transmission-connected to a pulley 2 (219); the interior of the pulley 2 (219) is fixedly connected to the rotating shaft 1 (220); the outer surface of the rotating shaft 1 (220) is rotationally connected to the left side of the interior of the crushing box (111).

6. A coal pulverizing device for a thermal power plant according to claim 5, characterized in that: The first rotating shaft (220) passes through the left side of the crushing box (111) and extends into the interior; a rotating disc (222) is fixedly connected to the right side of the first rotating shaft (220); a support rod (224) is rotatably connected to the right side of the rotating disc (222) via a pin; the top of the support rod (224) is rotatably connected to a limiting bracket (225) via a pin; the top of the limiting bracket (225) is fixedly connected to the top of the inner wall of the V-shaped filter (213); and the left side of the conveying cylinder (211) is fixedly connected to the right side of the second discharge port (113).

7. A coal pulverizing device for a thermal power plant according to claim 6, characterized in that: The dust collecting assembly (4) comprises a dust exhaust pipe (411), the bottom of the dust exhaust pipe (411) is fixedly connected to the left side of the top of the crushing box (111), the bottom of the inner wall of the dust exhaust pipe (411) is fixedly connected to a support frame 2 (420), the support frame 2 (420) is rotatably connected to a rotating shaft 6 (419), a plurality of fan blades (417) are arranged on the top of the support frame 2 (420), the corresponding sides of the plurality of fan blades (417) are fixedly connected to the top of the outer surface of the rotating shaft 6 (419), the bottom of the outer surface of the rotating shaft 6 (419) is fixedly connected to a bevel gear 1 (418), and the outer surface of the bevel gear 1 (418) is meshingly connected to a bevel gear 2 (421).

8. The coal pulverizing device for a thermal power plant according to claim 7, characterized in that: A pulley six (414) is arranged on the left side of the rotating shaft three (314), the interior of the pulley six (414) is fixedly connected to the left side of the outer surface of the rotating shaft four (316), the outer surface of the pulley six (414) is transmission-connected to the belt three (413), the end of the belt three (413) away from the pulley six (414) is transmission-connected to the pulley five (412), and the interior of the pulley five (412) is fixedly connected to the rotating shaft five (415).

9. A coal pulverizing device for a thermal power plant according to claim 8, characterized in that: The outer surface of the rotating shaft five (415) is rotatably connected to the support frame one (416), the bottom of the support frame one (416) is fixedly connected to the left side of the top of the crushing box (111), the rotating shaft five (415) passes through the dust exhaust pipe (411) and extends to the inside, and the right side of the outer surface of the rotating shaft five (415) is fixedly connected to the inside of the bevel gear two (421).

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