Efficient fire coal crushing device

Abstract

The efficient fire coal crushing device comprises a crushing machine shell, crushing rollers are symmetrically and rotationally installed in the crushing machine shell, supports are fixedly connected to the two sides of the crushing machine shell, a conveying belt is fixedly connected to the other ends of the supports, inclined baffles are symmetrically and fixedly connected to the upper face of the conveying belt, and the inclined baffles are fixedly connected to the lower face of the crushing machine shell. Dust collection pipe barrels are fixedly connected to the separated faces of the two inclined baffles, suction inlets are fixedly connected to the dust collection pipe barrels, a plurality of receding holes are formed in the inclined baffles, and the suction inlets are located in the receding holes. The wind power motor is started to drive the transmission shaft to rotate, the transmission shaft rotates to drive the blades to rotate, the blades rotate to extract air in the dust collection pipe barrel, the air sucked into the suction inlet can be sucked into the dust collection pipe barrel along with the diffused pulverized coal, and then clear water is atomized and sprayed into the dust collection pipe barrel through the spray head to settle the pulverized coal. The pulverized coal is prevented from being discharged from the end of the dust collection pipe barrel, air in an operation workshop is kept to diffuse the pulverized coal, and the body health of operators is guaranteed.

Description

Technical Field

[0001] The present invention relates to a crushing device, in particular to a high-efficiency coal crushing device. Background Art

[0002] The existing general power plants all use coal as fuel to generate electricity. Before using coal as fuel for power generation, it is generally necessary to crush it to ensure that the coal can burn more fully, which requires the use of coal crushing equipment.

[0003] For example, a coal crusher for power plants disclosed in a Chinese patent with the announcement number CN206567033U includes a main housing, a feed hopper is provided on the top of the main housing, a discharge pipe is provided at the bottom of the main housing, cutting motors are provided on both sides of the main housing, the output shaft on the cutting motor is connected to the cutting shaft through a coupling, a cutting blade is provided on the end of the cutting shaft away from the cutting motor, a crushing base plate is provided inside the main housing and at the bottom of the two cutting motors, and evenly distributed crushing teeth are provided on the opposite sides of the two crushing base plates. This coal crusher for power plants uses crushing teeth to effectively crush small pieces of coal, so that the coal block diameter can be crushed smaller, making it more convenient for workers to crush the coal, and achieving higher crushing efficiency. The coal after crushing has higher consistency performance, which can effectively improve the combustion efficiency of the coal. However, this patent has the following problems: First, when coal is crushed into coal powder, during the discharge process, the discharge of powdered coal will produce a certain amount of coal powder that will spread in the workshop, affecting the health of the operators; Second, although the crushing efficiency of the device is higher, the discharged coal powder needs to be continuously shoveled and transferred. If it is not shoveled in time, the coal powder will accumulate under the device and affect the discharge of the coal after crushing. The transfer speed directly affects the crushing efficiency. Summary of the Invention

[0004] The object of the present invention is to provide a high-efficiency coal crushing device to solve the existing problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-efficiency coal crushing device, comprising a crusher shell, wherein crushing rollers are symmetrically mounted for rotation in the crusher shell, brackets are fixedly connected to both sides of the crusher shell, a conveyor belt is fixedly connected to the other end of the bracket, inclined baffles are symmetrically fixedly connected to the conveyor belt, and dust suction tubes are fixedly connected to the separated surfaces of the two inclined baffles, a suction port is fixedly connected to the dust suction tube, a plurality of avoidance holes are provided in the inclined baffles, the suction port is located in the avoidance holes, a limit bracket is provided near the upper end edge of the dust suction tube, a wind motor is fixedly connected to the limit bracket, a transmission shaft is fixedly connected to the output end of the wind motor, and a plurality of blades are fixedly connected to the transmission shaft.

[0006] Preferably, a power motor is fixedly connected to the rear of the crusher housing, one end of one of the crushing rollers is fixedly connected to the output end of the power motor, a transmission mechanism is fixedly connected to the front of the crusher housing, and the two crushing rollers are fixedly connected to the transmission mechanism.

[0007] Preferably, a retracting baffle is symmetrically fixed to the bottom of the crusher shell.

[0008] Preferably, a limit slot is provided on the inner wall of the end portion of the dust collection tube, and the limit slot is slidably engaged with the limit bracket.

[0009] Preferably, a threaded sleeve is embedded in the outer wall of the dust suction tube, and a fixing bolt is installed in the inner thread of the threaded sleeve.

[0010] Preferably, a limiting hole is provided on one side of the limiting bracket, and the limiting hole cooperates with a fixing bolt.

[0011] Preferably, a delivery pipe is provided above the dust collection tube, a plurality of nozzles are fixedly connected to the delivery pipe, the nozzles pass through the interior of the dust collection tube, and a connecting hose is fixedly connected between two of the delivery pipes.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. Starting the wind motor can drive the transmission shaft to rotate, and the rotation of the transmission shaft can drive the blades to rotate. The rotation of the blades can extract the air inside the dust collection tube. The air inhaled at the suction port will also suck the diffused coal powder into the dust collection tube. Then use the nozzle to spray clean water into the dust collection tube to settle the coal powder, preventing the coal powder from being discharged from the end of the dust collection tube, keeping the air inside the operation workshop filled with coal powder, and ensuring the health of the operators.

[0013] 2. By using the crushing roller to crush the coal blocks, the crushed coal blocks will be discharged from the bottom of the crusher shell to the top of the conveyor belt. Starting the conveyor belt can drive the discharged coal powder to the appropriate position, avoiding the accumulation of coal powder at the lower end of the crusher shell, and can always keep the crushing mechanism running at full capacity.

[0014] 3. By unscrewing the end of the fixing bolt out of the limit hole, the restriction on the limit bracket can be released. At this time, the limit bracket can be pulled out from the inner end of the dust collection tube, which is convenient for cleaning the blades or maintaining the wind turbine motor later. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the other side of the present invention; Figure 3 It is a schematic structural diagram of the crusher housing of the present invention; Figure 4 It is a partial exploded view of the present invention.

[0016] In the figure: 1. Crusher housing; 101. Crushing roller; 102. Retracting baffle; 103. Power motor; 104. Transmission mechanism; 105. Bracket; 2. Conveyor belt; 201. Inclined baffle; 202. Avoidance hole; 3. Dust suction tube; 301. Suction port; 302. Limiting slot; 303. Threaded sleeve; 304. Fixing bolt; 4. Conveying pipe; 401. Nozzle; 402. Connecting hose; 5. Limiting bracket; 501. Wind motor; 502. Transmission shaft; 503. Blade; 504. Limiting hole. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0018] like Figure 1-4 As shown, the present invention has the following specific embodiments.

[0019] Example 1 A high-efficiency coal crushing device includes a crusher shell 1, in which crushing rollers 101 are symmetrically mounted for rotation. Brackets 105 are fixedly connected to both sides of the crusher shell 1, and a conveyor belt 2 is fixedly connected to the other end of the bracket 105. Oblique baffles 201 are symmetrically fixedly connected to the conveyor belt 2. The two oblique baffles 201 are fixedly connected to the separated surfaces of the two oblique baffles 201. A suction port 301 is fixedly connected to the dust collection tube 3. A plurality of avoidance holes 202 are opened in the oblique baffles 201. The suction port 301 is located in the avoidance holes 202. A limit bracket 5 is provided near the upper end edge of the dust collection tube 3. A wind motor 501 is fixedly connected to the limit bracket 5. A transmission shaft 502 is fixedly connected to the output end of the wind motor 501, and a plurality of blades 503 are fixedly connected to the transmission shaft 502.

[0020] In the embodiment, the crusher shell 1 is supported above the conveying belt 2 by the support 105, the coal lumps are conveyed into the crusher shell 1 by the shovel or coal conveying belt, the coal lumps are crushed into coal powder by the rotation of the two crushing rollers 101, and the crushed coal lumps are discharged from below the crusher shell 1 to the conveying belt 2, the conveying belt 2 is started to convey the discharged coal powder to the appropriate position, avoiding the accumulation of coal powder at the lower end of the crusher shell 1, the two inclined baffles 201 are arranged in a reverse V shape on both sides of the conveying belt 2, avoiding the coal powder from falling from both sides of the conveying belt 2, the air motor 501 is started to rotate the transmission shaft 502, the transmission shaft 502 is rotated to rotate the blade 503, the blade 503 is rotated to flow the air inside the dust suction pipe cylinder 3, the air inside the dust suction pipe cylinder 3 is sucked to the front end of the suction inlet 301, the suction inlet 301 cooperates with the avoidance hole 202, the suction inlet 301 passes through the avoidance hole 202, the suction of air at the suction inlet 301 will also suck the diffused coal powder into the dust suction pipe cylinder 3, the clean water is conveyed to the spray head 401 by the conveying pipe 4, the spray head 401 can atomize and spray clean water, the lower end of the spray head 401 is located inside the dust suction pipe cylinder 3, and then the atomized clean water is sprayed into the dust suction pipe cylinder 3 to settle the coal powder sucked into the dust suction pipe cylinder 3, avoiding the coal powder from being discharged from the end of the dust suction pipe cylinder 3, maintaining the air inside the operating workshop diffused with coal powder, and ensuring the health of the operating personnel.

[0021] Embodiment 2 The power motor 103 is fixed to the rear of the crusher shell 1, one end of the crushing roller 101 is fixed to the output end of the power motor 103, the transmission mechanism 104 is fixed to the front of the crusher shell 1, the two crushing rollers 101 are fixed to the transmission mechanism 104, and the gathering baffles 102 are symmetrically fixed to the lower surface of the crusher shell 1. The limiting clamping groove 302 is formed in the inner wall of the end of the dust suction pipe cylinder 3, and the limiting clamping groove 302 is in sliding cooperation with the limiting clamping frame 5.

[0022] In the embodiment, the power motor 103 is started to rotate one crushing roller 101, the two power motors 103 are connected together by the transmission mechanism 104, and then one crushing roller 101 can drive the other crushing roller 101 to rotate through the transmission mechanism 104, realizing the synchronous rotation of the two crushing rollers 101, crushing the delivered coal lumps, and gathering the discharged coal powder to make the discharged coal powder fall on the conveying belt 2.

[0023] Embodiment 3 A threaded sleeve 303 is embedded in the outer wall of the dust collection tube 3, and a fixing bolt 304 is installed on the internal thread of the threaded sleeve 303. A limiting hole 504 is provided on one side of the limiting bracket 5, and the limiting hole 504 cooperates with the fixing bolt 304. A delivery pipe 4 is provided above the dust collection tube 3, and a plurality of nozzles 401 are fixedly connected to the delivery pipe 4. The nozzle 401 passes through the interior of the dust collection tube 3, and a connecting hose 402 is fixedly connected between the two delivery pipes 4.

[0024] In this embodiment, by screwing the fixing bolt 304 into the threaded sleeve 303, the fixing bolt 304 cooperates with the limiting hole 504. After the end of the fixing bolt 304 is screwed into the limiting hole 504, the limiting bracket 5 can be fixed inside the limiting slot 302. Later, the end of the fixing bolt 304 can be screwed out of the limiting hole 504 to release the restriction on the limiting bracket 5. At this time, the limiting bracket 5 can be pulled out from the inner end of the dust suction tube 3, which is convenient for cleaning the blades 503 or maintaining the wind motor 501 in the later stage. The connecting hose 402 can be used to connect to the water supply equipment, and the water supply equipment can be used to transport clean water to the delivery pipe 4 through the connecting hose 402.

[0025] The working principle and use process of the present invention are as follows: when using, the coal blocks are poured into the crusher housing 1, the power motor 103 is started to drive the crushing roller 101 to rotate, and the two crushing rollers 101 are used to rotate and crush the coal blocks, and the coal blocks are crushed into coal powder. After the coal blocks are crushed, they will be discharged from the bottom of the crusher housing 1 to the top of the conveyor belt 2. Starting the conveyor belt 2 can drive the discharged coal powder to a suitable position to prevent the coal powder from accumulating at the lower end of the crusher housing 1. Starting the wind motor 501 can drive the transmission shaft 502 to rotate. The rotation of the transmission shaft 502 can drive the blades 503 to rotate. The blades 503 can rotate. 03 Rotation can extract the air inside the dust collection tube 3, and air will be sucked in at the suction port 301. The air sucked in at the suction port 301 will also suck the diffused coal powder into the dust collection tube 3. The water supply equipment is used to transport clean water to the delivery pipe 4 through the connecting hose 402. The delivery pipe 4 is used to transport the clean water to the nozzle 401. The nozzle 401 can atomize the clean water and spray it inside the dust collection tube 3 to settle the coal powder sucked into the dust collection tube 3, thereby preventing the coal powder from being discharged from the end of the dust collection tube 3, keeping the air inside the operation workshop filled with coal powder, and ensuring the health of the operators.

[0026] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency coal crushing device, comprising a crusher housing (1), wherein a crushing roller (101) is symmetrically mounted in the crusher housing (1), characterized in that: Brackets (105) are fixedly connected to both sides of the crusher housing (1), a conveyor belt (2) is fixedly connected to the other end of the bracket (105), an oblique baffle (201) is symmetrically fixedly connected to the conveyor belt (2), and the two oblique baffles (201) are fixedly connected to the separated surfaces of the dust suction tube (3), a suction port (301) is fixedly connected to the dust suction tube (3), a plurality of avoidance holes (202) are opened in the oblique baffle (201), and the suction port (301) is located in the avoidance holes (202), a limit bracket (5) is provided near the upper edge of the dust suction tube (3), a wind motor (501) is fixedly connected to the limit bracket (5), a transmission shaft (502) is fixedly connected to the output end of the wind motor (501), and a plurality of blades (503) are fixedly connected to the transmission shaft (502).

2. The high-efficiency coal crushing device according to claim 1, characterized in that: A power motor (103) is fixedly connected to the rear of the crusher housing (1), one end of one of the crushing rollers (101) is fixedly connected to the output end of the power motor (103), a transmission mechanism (104) is fixedly connected to the front of the crusher housing (1), and the two crushing rollers (101) are fixedly connected to the transmission mechanism (104).

3. The high-efficiency coal crushing device according to claim 1, characterized in that: A retracting baffle (102) is symmetrically fixed to the bottom of the crusher housing (1).

4. The high-efficiency coal crushing device according to claim 1, characterized in that: A limit slot (302) is provided on the inner wall of the end of the dust suction tube (3), and the limit slot (302) is slidably engaged with the limit bracket (5).

5. The high-efficiency coal crushing device according to claim 1, characterized in that: A threaded sleeve (303) is embedded and installed on the outer wall of the dust suction tube (3), and a fixing bolt (304) is installed on the inner thread of the threaded sleeve (303).

6. The high-efficiency coal crushing device according to claim 5, characterized in that: A limiting hole (504) is provided on one side of the limiting bracket (5), and the limiting hole (504) cooperates with the fixing bolt (304).

7. The high-efficiency coal crushing device according to claim 5, characterized in that: A delivery pipe (4) is provided above the dust collection tube (3), a plurality of nozzles (401) are fixedly connected to the delivery pipe (4), the nozzles (401) penetrate into the interior of the dust collection tube (3), and a connecting hose (402) is fixedly connected between two of the delivery pipes (4).

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