Anti-sticking and anti-blocking coal conveying and crushing device

Abstract

The utility model discloses an anti-sticking and anti-blocking coal conveying and crushing device, and relates to the technical field of coal mine processing. The anti-sticking and anti-blocking coal conveying and crushing device comprises a conveying device, a crushing structure is arranged above the conveying device, and a drying device and a drying and ventilating device are arranged on the outer side of the crushing structure; through the arrangement of the drying device and the drying ventilation device, a large amount of heat is generated by an electric heating wire contained in the drying device, and then the heat is sent into the crushing box through the guide fan, so that the temperature in the crushing box is gradually increased, and coal briquettes located in the crushing box are promoted to be dried; and an extraction pump contained in the drying and ventilating device is matched to introduce the air treated by the drying agent into the crushing box through an air outlet spray head, so that the air in the crushing box is dried, and the coal briquettes are dried under the cooperation of the drying device and the drying and ventilating device.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine processing, in particular to an anti-sticking and blocking coal conveying and crushing device. Background Art

[0002] As one of the main raw materials for fuel, coal is in great demand. However, new boilers have very high requirements on coal particle size. Only when the particle size is uniform can it be effectively utilized to generate greater energy.

[0003] The coal transportation system needs to first send the raw coal into the crushing system for screening and crushing before it can be sent to the boiler coal bunker through a belt conveyor.

[0004] After searching, it is proposed in the coal crushing and screening mechanism with patent publication number CN218609794U that "the utility model coal conveying crushing and screening mechanism performs screening operation before crushing, and the coal meeting the particle size requirements is directly dropped into the coal slag conveyor for output to the boiler, while the coal blocks with large particle size fall into the crusher and are crushed by tooth roller extrusion. The crushed coal slag will also fall into the coal slag conveyor for transportation, which reduces the over-crushing of coal and reduces energy consumption. It integrates screening, material distribution, crushing and transportation, reduces the labor intensity of the staff and improves work efficiency".

[0005] However, the above solution still has certain shortcomings in actual use. The solution only uses two crushing tooth rollers to crush the coal blocks. This crushing method will cause uneven crushing of the coal blocks, resulting in poor crushing effect.

[0006] Moreover, when encountering coal blocks with high humidity and viscosity, a large amount of raw coal will stick to the inside of the device, which will block the device and seriously affect the crushing effect of the crushing system. Utility Model Content

[0007] The utility model provides an anti-sticking and blocking coal conveying and crushing device to solve the problems in the background technology.

[0008] To achieve the above object, the utility model provides the following technical solutions: an anti-blocking coal conveying and crushing device, comprising a conveying device, a crushing structure is arranged above the conveying device, and a drying device and a drying ventilation device are arranged outside the crushing structure;

[0009] The crushing structure includes a crushing box and a return box, the crushing box and the return box are connected, the inner wall of the crushing box is rotatably connected to a crushing gear shaft, the inner wall of the crushing box is fixedly installed with a passive rolling plate and rotatably connected to an active rolling plate, the inner wall of the crushing box is provided with a vibrating screen, and the inner wall of the return box is rotatably connected to a conveying auger;

[0010] The drying device comprises an external box, the inner wall of the crushing box is provided with a connection port, the connection port is fixedly mounted to the front side of the external box, the inner wall of the external box is provided with a heating wire, and the front side of the heating wire is provided with a guide fan;

[0011] The drying ventilation device comprises a drying box, which is fixedly mounted on the outer side of the crushing box, a desiccant is movably inserted into the inner wall of the drying box, an air pump is fixedly mounted on the outer side of the drying box, and an air outlet nozzle is fixedly mounted on the other end of the air pump.

[0012] Furthermore, a guide funnel is fixedly mounted on the inner wall of the crushing box, and the guide funnel is located between the crushing gear shaft and the passive rolling plate.

[0013] Furthermore, the vibrating screen includes a screen plate and an electric slide rail. The screen plate is elastically connected to the inner wall of the crushing box through a damping spring, and a vibration motor is arranged at the bottom end of the screen plate.

[0014] Furthermore, a cleaning brush is fixedly installed on the movable end of the electric slide rail, and the cleaning brush is located above the screen plate.

[0015] Furthermore, an annular groove is provided on the inner wall of the crushing box, and the annular groove is located below the vibrating screen. The crushing box is connected to the air outlet nozzle through the annular groove.

[0016] Compared with the prior art, the utility model provides an anti-blocking coal conveying and crushing device, which has the following beneficial effects:

[0017] 1. The anti-blocking coal conveying and crushing device, by setting a crushing structure, can use the crushing gear shaft to perform primary processing on the coal blocks, and the repeated engagement of the passive rolling plate and the active rolling plate can perform secondary processing on the coal blocks, and then cooperate with the vibrating screen to screen the coal blocks, so that the coal blocks that do not meet the rules enter the reflux box and enter the crushing box again through the conveying auger to wait for further processing, so that the crushing structure can process the coal blocks for multiple times, making the crushing of the coal blocks more uniform, thereby improving the crushing effect.

[0018] 2. The anti-blocking coal conveying and crushing device is provided with a drying device and a drying ventilation device. The electric heating wire contained in the drying device generates a large amount of heat, and then the heat is sent into the crushing box through the guide fan, so that the temperature inside the crushing box gradually increases, and the coal blocks inside the crushing box are dried. In combination with the extraction pump contained in the drying ventilation device, the air treated with the desiccant can be passed into the crushing box through the air outlet nozzle, so that the air inside the crushing box is dried, and the coal blocks are dried with the coordinated cooperation of the drying device and the drying ventilation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model;

[0021] Figure 3 for Figure 3 A schematic diagram of the enlarged structure in the middle.

[0022] In the figure: 1. conveying device; 2. crushing structure; 201. crushing box; 202. crushing gear shaft; 203. guide funnel; 204. passive rolling plate; 205. active rolling plate; 206. vibrating screen; 207. electric slide rail; 208. cleaning brush; 209. reflux box; 210. conveying auger; 211. connection port; 3. drying device; 301. external box; 302. heating wire; 303. guide fan; 4. drying ventilation device; 401. drying box; 402. desiccant; 403. vacuum pump; 404. air outlet nozzle. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 The utility model discloses an anti-blocking coal conveying and crushing device, comprising a conveying device 1, a crushing structure 2 is arranged above the conveying device 1, and a drying device 3 and a drying ventilation device 4 are arranged outside the crushing structure 2.

[0025] The crushing structure 2 includes a crushing box 201 and a reflux box 209, the crushing box 201 and the reflux box 209 are communicated, the inner wall of the crushing box 201 is rotatably connected to the crushing gear shaft 202, the inner wall of the crushing box 201 is fixedly installed with a passive rolling plate 204 and is rotatably connected to an active rolling plate 205, the inner wall of the crushing box 201 is provided with a vibrating screen 206, and the inner wall of the reflux box 209 is rotatably connected to a conveying auger 210.

[0026] By setting up the crushing structure 2, the crushing gear shaft 202 can be used to perform the initial processing of the coal blocks, and the repeated engagement of the passive rolling plate 204 and the active rolling plate 205 can perform the secondary processing of the coal blocks. The vibrating screen 206 can be used to screen the coal blocks, so that the coal blocks that do not meet the rules enter the reflux box 209 and enter the crushing box 201 again through the conveying auger 210 to wait for further processing, so that the crushing structure 2 can process the coal blocks multiple times, making the crushing of the coal blocks more uniform, thereby improving the crushing effect.

[0027] The drying device 3 includes an external box 301, the inner wall of the crushing box 201 is provided with a connection port 211, the connection port 211 is fixedly installed with the front side of the external box 301, the inner wall of the external box 301 is provided with a heating wire 302, and the front side of the heating wire 302 is provided with a guide fan 303;

[0028] The drying ventilation device 4 includes a drying box 401, which is fixedly installed on the outer side of the crushing box 201, and a desiccant 402 is movably inserted into the inner wall of the drying box 401. An air pump 403 is fixedly installed on the outer side of the drying box 401, and an air outlet nozzle 404 is fixedly installed on the other end of the air pump 403.

[0029] By setting up a drying device 3 and a drying ventilation device 4, a large amount of heat is generated by the heating wire 302 contained in the drying device 3, and then the heat is sent into the crushing box 201 through the guide fan 303, so that the temperature inside the crushing box 201 gradually increases, and the coal blocks inside the crushing box 201 are dried. In combination with the extraction pump contained in the drying ventilation device 4, the air treated with the desiccant 402 can be passed into the crushing box 201 through the air outlet nozzle 404, so that the air inside the crushing box 201 is dried, and the coal blocks are dried with the coordinated cooperation of the drying device 3 and the drying ventilation device 4.

[0030] Specifically, a guide funnel 203 is fixedly installed on the inner wall of the crushing box 201 , and the guide funnel 203 is located between the crushing gear shaft 202 and the passive rolling plate 204 .

[0031] In this embodiment, the coal blocks after the crushing process fall into the guide funnel 203 and slide along the slope of the guide funnel 203, so that the coal blocks pass through the guide funnel 203 and fall between the passive rolling plate 204 and the active rolling plate 205.

[0032] Specifically, the vibrating screen 206 includes a screen plate and an electric slide rail 207. The screen plate is elastically connected to the inner wall of the crushing box 201 through a damping spring. A vibration motor is provided at the bottom end of the screen plate. A cleaning brush 208 is fixedly installed at the movable end of the electric slide rail 207. The cleaning brush 208 is located above the screen plate.

[0033] In this embodiment, the vibration motor is started so that the vibration motor starts to drive the screen plate to vibrate continuously, so that the screen plate starts to vibrate and screen the coal blocks, so that the coal blocks that meet the filtering rules continue to fall through the screen plate.

[0034] Specifically, an annular groove is formed on the inner wall of the crushing box 201 , and the annular groove is located below the vibrating screen 206 . The crushing box 201 is connected to the air outlet nozzle 404 through the annular groove.

[0035] In this embodiment, the annular groove can be used to stably connect the crushing box 201 and the gas outlet nozzle 404.

[0036] When in use, firstly put the coal block into the crushing box 201, so that the coal block falls between the two crushing gear shafts 202, and then the two crushing gear shafts 202 are driven by the power supply to rotate, so that the two crushing gear shafts 202 begin to crush the coal block;

[0037] The coal blocks after crushing fall into the guide funnel 203 and slide along the slope of the guide funnel 203, so that the coal blocks pass through the guide funnel 203 and fall between the passive rolling plate 204 and the active rolling plate 205;

[0038] During this process, the active rolling plate 205 is activated by power supply, so that the active rolling plate 205 rotates toward the passive rolling plate 204, so that the active rolling plate 205 and the passive rolling plate 204 begin to bite repeatedly, so that the coal blocks between the active rolling plate 205 and the passive rolling plate 204 are rolled;

[0039] Then the coal blocks fall onto the vibrating screen 206, and then the vibrating motor is started, so that the vibrating motor starts to drive the screen plate to vibrate continuously, so that the screen plate starts to vibrate and screen the coal blocks, so that the coal blocks that meet the filtering rules continue to fall through the screen plate;

[0040] The coal blocks that do not meet the filtering rules will be retained on the screen plate, and then the electric slide rail 207 drives the cleaning brush 208 to move on the screen plate, so that the coal blocks on the screen plate are pushed into the return box 209 driven by the cleaning brush 208, and then the conveying auger 210 is started, so that the conveying auger 210 conveys the coal blocks in the return box 209 to the crushing box 201 again, thereby completing the crushing and screening of the coal blocks;

[0041] In the above process, the electric heating wire 302 is started to generate heat, and the guide fan 303 can guide the heat into the crushing box 201, so that the temperature inside the crushing box 201 gradually increases, and the coal blocks inside the crushing box 201 are dried.

[0042] The extraction pump can draw outside air into the drying box 401, prompting the desiccant 402 to dry the air, so that the extraction pump can pass the air treated by the desiccant 402 into the crushing box 201 through the air outlet nozzle 404, so that the air inside the crushing box 201 is dried;

[0043] And the staff needs to replace the desiccant 402 periodically.

[0044] In summary, the anti-blocking coal conveying and crushing device, by setting the crushing structure 2, can use the crushing gear shaft 202 to perform the primary processing of the coal blocks, and the repeated bite of the passive rolling plate 204 and the active rolling plate 205 can perform the secondary processing of the coal blocks, and then cooperate with the vibrating screen 206 to screen the coal blocks, so that the coal blocks that do not meet the rules enter the return box 209 and enter the crushing box 201 again through the conveying auger 210 to wait for further processing, so that the crushing structure 2 can process the coal blocks for multiple times, so that the coal blocks are crushed more evenly, thereby improving the crushing effect;

[0045] By setting up a drying device 3 and a drying ventilation device 4, a large amount of heat is generated by the heating wire 302 contained in the drying device 3, and then the heat is sent into the crushing box 201 through the guide fan 303, so that the temperature inside the crushing box 201 gradually increases, and the coal blocks inside the crushing box 201 are dried. In combination with the extraction pump contained in the drying ventilation device 4, the air treated with the desiccant 402 can be passed into the crushing box 201 through the air outlet nozzle 404, so that the air inside the crushing box 201 is dried, and the coal blocks are dried with the coordinated cooperation of the drying device 3 and the drying ventilation device 4.

[0046] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal conveying and crushing device for preventing sticking and blocking, comprising a conveying device (1), characterized in that: A crushing structure (2) is arranged above the conveying device (1), and a drying device (3) and a drying ventilation device (4) are arranged outside the crushing structure (2); The pulverizing structure (2) comprises a pulverizing box (201) and a return box (209), the pulverizing box (201) and the return box (209) being connected, the inner wall of the pulverizing box (201) being rotatably connected to a pulverizing gear shaft (202), the inner wall of the pulverizing box (201) being fixedly mounted with a passive rolling plate (204) and being rotatably connected to an active rolling plate (205), the inner wall of the pulverizing box (201) being provided with a vibrating screen (206), and the inner wall of the return box (209) being rotatably connected to a conveying auger (210); The drying device (3) comprises an external box (301), the inner wall of the crushing box (201) is provided with a connection port (211), the connection port (211) is fixedly mounted to the front side of the external box (301), the inner wall of the external box (301) is provided with a heating wire (302), and the front side of the heating wire (302) is provided with a guide fan (303); The drying ventilation device (4) comprises a drying box (401), the drying box (401) being fixedly mounted on the outside of the crushing box (201), a desiccant (402) being movably inserted into the inner wall of the drying box (401), an air extraction pump (403) being fixedly mounted on the outside of the drying box (401), and an air outlet nozzle (404) being fixedly mounted on the other end of the air extraction pump (403).

2. The anti-blocking coal conveying and crushing device according to claim 1 is characterized by: A guide funnel (203) is fixedly mounted on the inner wall of the crushing box (201), and the guide funnel (203) is located between the crushing gear shaft (202) and the passive rolling plate (204).

3. The anti-blocking coal conveying and crushing device according to claim 1 is characterized in that: The vibrating screen (206) comprises a screen plate and an electric slide rail (207); the screen plate is elastically connected to the inner wall of the crushing box (201) via a damping spring; a vibration motor is provided at the bottom end of the screen plate.

4. The anti-blocking coal conveying and crushing device according to claim 3 is characterized by: A cleaning brush (208) is fixedly mounted on the movable end of the electric slide rail (207), and the cleaning brush (208) is located above the screen plate.

5. The anti-blocking coal conveying and crushing device according to claim 1, characterized in that: An annular groove is provided on the inner wall of the pulverizing box (201), and the annular groove is located below the vibrating screen (206). The pulverizing box (201) is connected to the air outlet nozzle (404) via the annular groove.

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