Mining crusher with cleaning function

Abstract

The utility model provides a mining crusher with a cleaning function, and relates to the field of crushing equipment for coal processing, the mining crusher comprises a crushing box, the crushing box comprises a feed hopper and a discharge port, two crushing rollers are rotatably connected in the crushing box, the outer surface of the crushing box is provided with a driving assembly, and the driving assembly is connected with the crushing rollers; telescopic assemblies are symmetrically arranged on the crushing box and connected with scraping assemblies used for scraping and cleaning coal on the surfaces of the crushing rollers. According to the device, the crushing roller can be automatically cleaned, effective cleaning is achieved in the mode that scraping and high-pressure air injection are combined, then the follow-up using effect of the crushing roller is stable, the total cleaning time is shortened, and compared with a manual brush cleaning mode, the labor intensity can be greatly reduced; and compared with a water spraying cleaning mode, the phenomenon that coal materials are adhered in the crushing box after being cleaned is avoided, the dual cleaning effect is good, and the subsequent using effect of the mining crushing equipment is better.

Description

Technical Field

[0001] The utility model relates to the field of crushing equipment for coal processing, in particular to a mining crusher with a cleaning function. Background Art

[0002] Coal mines are areas where humans mine coal resources in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, people generally choose to dig tunnels underground to mine coal. This is an underground coal mine. When the coal seam is very close to the surface, people generally choose to directly strip off the surface soil layer to mine coal. This is an open-pit coal mine. The vast majority of coal mines in my country are underground coal mines. The scope of coal mines includes a large area above and below the ground and related facilities.

[0003] After coal mining is completed, larger coal needs to be crushed. At this time, mining crushing equipment is needed. The commonly used mining crushing equipment is generally a double-roll crusher. After the double-roll crusher is used to crush the coal, coal will adhere to the crushing roller of the double-roll crusher. In order to ensure the safety of the crushing process, the crushing roller is generally set inside the double-roll crusher. Therefore, it is difficult and laborious to clean the coal material attached to the crushing roller. Currently, manual brush cleaning or water spray cleaning is generally used. Manual brush cleaning is time-consuming, labor-intensive and labor-intensive, and water spray cleaning can easily cause materials to adhere to the inside of the double-roll crusher, and the cleaning effect is average. Utility Model Content

[0004] The purpose of the present invention is to solve the problems raised in the above background technology, and then proposes a mining crusher with a cleaning function.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A mining crusher with a cleaning function comprises a crushing box, which comprises a feed hopper and a discharge port, and has two crushing rollers rotatably connected inside the crushing box. A drive assembly is provided on the outer surface of the crushing box, and the drive assembly is connected to the crushing rollers. Telescopic assemblies are symmetrically provided on the crushing box, and the telescopic assembly is connected to a scraping assembly for scraping coal off the surface of the crushing rollers for cleaning. The scraping assembly is provided with a high-pressure jet assembly to achieve double cleaning of the crushing rollers.

[0007] This device can automatically clean the crushing roller, and achieves effective cleaning through a combination of scraping and high-pressure air jets. As a result, the subsequent use of the crushing roller is stable and the total cleaning time is shortened. Compared with the manual brush cleaning method, it can greatly reduce labor intensity. Compared with the water spray cleaning method, it will not cause the coal material to stick to the crushing box after cleaning. The double cleaning effect is good, and the subsequent use effect of the mining crushing equipment is better.

[0008] Furthermore, the scraper assembly includes a U-shaped frame and a steel brush roller. The telescopic assembly is connected to the U-shaped frame located inside the crushing box and distributed opposite to it. The U-shaped frame is rotatably connected to the steel brush roller distributed at intervals therefrom.

[0009] Furthermore, the high-pressure jet assembly includes a U-shaped platform, an jet pipe, a branch pipe, a hose, a quick connector and a high-pressure air pump. A U-shaped platform is provided on the U-shaped frame and is spaced apart from the steel brush roller. The U-shaped platform is provided with a jet pipe, and the jet pipe is provided with several equally spaced branch pipes. A high-pressure air pump is symmetrically arranged outside the crushing box. The output end of the high-pressure air pump is connected to the hose inside the crushing box through a quick connector, and the hose is connected to the jet pipe.

[0010] The above solution realizes effective cleaning of the crushing roller through the coordinated cooperation of the scraper assembly and the high-pressure jet assembly.

[0011] Furthermore, a filter screen is provided on the branch pipe.

[0012] The above solution can prevent the coal attached to the crushing roller from entering the branch pipe during the cleaning process through the filter screen.

[0013] Furthermore, the crushing box is symmetrically provided with obliquely distributed material guide plates, and the material guide plates are located above the high-pressure jet assembly to protect it.

[0014] The above solution can guide the material to the crushing roller for processing through the guide plate, and at the same time can protect the high-pressure jet component below it, thereby extending the service life of the high-pressure jet component.

[0015] Furthermore, a fine crushing component is provided below the crushing roller.

[0016] Furthermore, the fine crushing component includes a mounting plate, a spring, a screening net and a secondary crushing component. The mounting plate is symmetrically arranged inside the crushing box, and a number of springs are arranged on the mounting plate. One end of the spring is connected to the screening net, and the screening net slides with the inner wall of the crushing box in the vertical direction. Above the screening net is a secondary crushing component fixed in the crushing box.

[0017] In the above scheme, when using crushing rollers to crush coal, a small amount of coal particles are not completely crushed and therefore do not meet the requirements of subsequent processing. At this time, this part of the larger-sized coal can stay on the screening net and bounce back and forth on the screening net. Then, the secondary crushing component can be used to further finely crush this part of the coal. When the crushed particle size meets the requirements, it can be discharged through the screening net.

[0018] Furthermore, the crushing box is provided with a dust suction fan on one side of the feed hopper, and the dust suction fan is connected to the purification equipment.

[0019] The above solution can use the dust suction fan to suck the dust overflowing from the feed hopper into the purification equipment for treatment during the crushing process or the cleaning process, thereby avoiding the occurrence of dust overflowing around the feed hopper.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] This device can automatically clean the crushing roller, and achieves effective cleaning through a combination of scraping and high-pressure air jets. As a result, the subsequent use of the crushing roller is stable and the total cleaning time is shortened. Compared with the manual brush cleaning method, it can greatly reduce labor intensity. Compared with the water spray cleaning method, it will not cause the coal material to stick to the crushing box after cleaning. The double cleaning effect is good, and the subsequent use effect of the mining crushing equipment is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 for Figure 1 A partial enlarged view of the part marked A;

[0024] Figure 3 This is a diagram of filter installation;

[0025] Reference numerals:

[0026] 1. Crushing box; 11. Feed hopper; 12. Discharge port; 13. Dust suction fan; 2. Crushing roller; 31. Telescopic assembly; 32. U-shaped frame; 33. Steel brush roller; 34. U-shaped table; 35. Jet nozzle; 36. Branch pipe; 361. Filter; 37. Hose; 38. Quick connector; 39. High-pressure air pump; 41. Mounting plate; 42. Spring; 43. Screening net; 44. Double crushing assembly. DETAILED DESCRIPTION

[0027] 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 embodiments described 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 work are within the scope of protection of the present invention. The present invention is further described in conjunction with the drawings and embodiments:

[0028] like Figures 1 to 3As shown, a mining crusher with a cleaning function includes a crushing box 1, the crushing box 1 includes a feed hopper 11 and a discharge port 12, and two crushing rollers 2 are rotatably connected inside the crushing box 1. A drive assembly is provided on the outer surface of the crushing box 1, and the drive assembly is connected to the crushing roller 2 (the drive assembly adopts a synchronous gear transmission, which belongs to the existing technology and is not improved and is not shown in the figure). The crushing box 1 is symmetrically provided with a telescopic assembly 31, and the telescopic assembly 31 is connected to a scraping assembly for scraping coal off the surface of the crushing roller 2 for cleaning. The scraping assembly is provided with a high-pressure jet assembly to achieve double cleaning of the crushing roller 2.

[0029] Further refinement of the embodiment of the present invention is as follows: Figures 1 to 3 As shown, the scraper assembly includes a U-shaped frame 32 and a steel brush roller 33. The telescopic assembly 31 is connected to the U-shaped frame 32 which is located inside the crushing box 1 and is distributed opposite to it (specifically, the telescopic assembly 31 can use either a cylinder or an electric push rod). The U-shaped frame 32 is rotatably connected to the steel brush roller 33 which is distributed at intervals therefrom.

[0030] Further refinement of the embodiment of the present invention is as follows: Figures 1 to 3 As shown, the high-pressure jet assembly includes a U-shaped platform 34, an air jet pipe 35, a branch pipe 36, a hose 37, a quick connector 38 and a high-pressure air pump 39. The U-shaped frame 32 is provided with a U-shaped platform 34 spaced apart from the steel brush roller 33, the U-shaped platform 34 is provided with an air jet pipe 35, and the air jet pipe 35 is provided with a number of equally spaced branch pipes 36. A high-pressure air pump 39 is symmetrically arranged outside the crushing box 1. The output end of the high-pressure air pump 39 is connected to the hose 37 inside the crushing box 1 through the quick connector 38, and the hose 37 is connected to the air jet pipe 35. The output end of the high-pressure air pump 39 and the hose 37 are connected through the quick connector 38, thereby not affecting the horizontal movement of the steel brush roller 33 in the crushing box 1.

[0031] Further refinement of the above embodiment scheme, such as Figure 3 As shown, a filter screen 361 is provided on the branch pipe 36 ; the filter screen 361 can prevent the coal attached to the crushing roller 2 from entering the interior of the branch pipe 36 during the cleaning process.

[0032] The specific implementation of the embodiment of the present utility model is as follows Figure 1As shown, a fine crushing assembly is provided below the crushing roller 2, and the fine crushing assembly includes a mounting plate 41, a spring 42, a screening net 43 and a double crushing assembly 44. The interior of the crushing box 1 is symmetrically provided with a mounting plate 41, and a number of springs 42 are provided on the mounting plate 41. One end of the spring 42 is connected to a screening net 43, and the screening net 43 slides with the inner wall of the crushing box 1 in the vertical direction (specifically, vertically distributed slide rails are symmetrically provided in the crushing box 1, and the slide rails are not numbered in the figure. The screening net 43 slides with the slide rails). Above the screening net 43 is a double crushing assembly 44 fixed in the crushing box 1. Specifically, the double crushing assembly 44 adopts the existing technology without improvement, and includes a crushing motor, a crushing shaft and a crushing knife. These structures are not numbered in the figure, and the crushing knife is above the filter net 361 and the distance between the two is 2-4 cm.

[0033] Further refinement of the embodiment of the present invention is as follows: Figures 1 to 3 As shown, the crushing box 1 is provided with a dust suction fan 13 on one side of the feed hopper 11, and the dust suction fan 13 is connected to the purification equipment, which is not shown in the figure. It should be noted that the discharge port 12 is level with the feed port of the collection box so that there will be no dust overflow. When the cleaning is completed, the collection box can be taken away immediately. The collection box is not shown in the figure.

[0034] It should be noted that the driving assembly, the telescopic assembly 31 , the high-pressure air pump 39 and the secondary crushing assembly 44 are all electrically connected to the controller, which is not shown in the figure.

[0035] The workflow of this utility model:

[0036] First, put the large pieces of coal into the crushing box 1 from the feed hopper 11, and then the controller controls the driving component to work and drive the two crushing rollers 2 to move synchronously inward to crush the coal. After the crushing is completed, it can be collected from the discharge port 12. After a long period of use, the surface of the crushing roller 2 will adhere to the material. At this time, stop feeding, and then the controller controls the telescopic component 31 to work and drive the steel brush rollers 33 on both sides to move synchronously toward the center. When the steel brush roller 33 contacts the crushing roller 2, the telescopic component 31 stops moving (this movement distance is pre-set in the controller), and then the crushing roller 2 keeps rotating and can drive the steel brush roller 3 3 rotates, and friction is generated between the two, which can scrape off the coal attached to the crushing roller 2. While scraping, the controller controls the high-pressure air pump 39 to work and inject high-pressure gas into the air injection pipe 35. Then the high-pressure gas is synchronously ejected from the multiple branch pipes 36 to perform a secondary cleaning on the surface of the crushing roller 2 for the stubborn materials attached to the surface or the materials that are not scraped thoroughly. At the same time, it can also shorten the cleaning time and the period of stopping feeding. The crushing roller 2 has a better cleaning effect under the double cleaning method. It should be noted that after completing one cleaning, the telescopic component 31 moves back to the initial position and no longer contacts the crushing roller 2.

[0037] When the coal is crushed by the crushing roller 2, a small amount of coal may not be completely crushed and thus does not meet the requirements of subsequent processing. At this time, this part of the coal with larger particles can stay on the screening mesh 43 and bounce back and forth on the screening mesh 43. Then, the secondary crushing assembly 44 can be used to further finely crush this part of the coal. When the crushed particle size meets the requirements, it can be discharged through the screening mesh 43.

[0038] This device can automatically clean the crushing roller 2, and achieves effective cleaning through a combination of scraping and high-pressure jetting, so that the subsequent use effect of the crushing roller 2 is stable and the total cleaning time is shortened. Compared with the manual brush cleaning method, it can greatly reduce the labor intensity. Compared with the water spray cleaning method, it will not cause the coal material to stick to the crushing box 1 after cleaning. The double cleaning effect is good, and the subsequent use effect of the mining crushing equipment is better.

[0039] In some embodiments, guide plates are symmetrically arranged inside the crushing box 1 and are located above the high-pressure jet assembly to protect it. The guide plates are not shown in the figure. This embodiment can guide the material to the crushing roller 2 for processing through the guide plates, and at the same time can protect the high-pressure jet assembly below it, thereby extending the service life of the high-pressure jet assembly.

[0040] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A mining crusher with a cleaning function, comprising a crushing box (1), the crushing box (1) comprising a feed hopper (11) and a discharge port (12), and two crushing rollers (2) rotatably connected inside the crushing box (1), a drive assembly provided on the outer surface of the crushing box (1), and the drive assembly connected to the crushing rollers (2), characterized in that: The crushing box (1) is symmetrically provided with telescopic components (31), and the telescopic components (31) are connected to a scraping component for scraping and cleaning coal from the surface of the crushing roller (2). The scraping component is provided with a high-pressure jet component to achieve double cleaning of the crushing roller (2).

2. A mining crusher with a cleaning function according to claim 1, characterized in that: The scraper assembly comprises a U-shaped frame (32) and a steel brush roller (33); the telescopic assembly (31) is connected to the U-shaped frame (32) which is located inside the crushing box (1) and is directly opposite to the U-shaped frame (32); and the steel brush roller (33) which is spaced apart from the U-shaped frame (32) is rotatably connected to the U-shaped frame (32).

3. The mining crusher with cleaning function according to claim 2, characterized in that: The high-pressure jet assembly comprises a U-shaped platform (34), an air jet pipe (35), a branch pipe (36), a hose (37), a quick connector (38) and a high-pressure air pump (39). The U-shaped frame (32) is provided with a U-shaped platform (34) spaced apart from the steel brush roller (33). The U-shaped platform (34) is provided with an air jet pipe (35). The air jet pipe (35) is provided with a plurality of equally spaced branch pipes (36). The high-pressure air pump (39) is symmetrically arranged outside the crushing box (1). The output end of the high-pressure air pump (39) is connected to the hose (37) inside the crushing box (1) through the quick connector (38). The hose (37) is connected to the air jet pipe (35).

4. The mining crusher with cleaning function according to claim 3, characterized in that: The branch pipe (36) is provided with a filter screen (361).

5. The mining crusher with cleaning function according to claim 3, characterized in that: The crushing box (1) is symmetrically provided with inclined material guide plates inside, and the material guide plates are located above the high-pressure jet assembly to protect it.

6. The mining crusher with cleaning function according to claim 1, characterized in that: A fine crushing component is provided below the crushing roller (2).

7. The mining crusher with cleaning function according to claim 6, characterized in that: The fine crushing assembly comprises a mounting plate (41), a spring (42), a screening net (43) and a double crushing assembly (44). The mounting plate (41) is symmetrically arranged inside the crushing box (1). A plurality of springs (42) are arranged on the mounting plate (41). One end of the spring (42) is connected to the screening net (43). The screening net (43) and the inner wall of the crushing box (1) are slidably matched in the vertical direction. The double crushing assembly (44) fixed in the crushing box (1) is matched above the screening net (43).

8. The mining crusher with cleaning function according to claim 1, characterized in that: The crushing box (1) is provided with a dust suction fan (13) located on one side of the feed hopper (11), and the dust suction fan (13) is connected to the purification equipment.

Images