Coal mine crushing device for coal mining

Abstract

The utility model discloses a coal mine crushing device for coal mining, which comprises a crusher main body, the upper end of the crusher main body is fixedly provided with a self-adaptive spraying device, the self-adaptive spraying device comprises a bottom plate, a telescopic support leg, a guide hopper, a spraying pipe and a pressure regulating valve, the telescopic support leg is fixedly arranged at the upper end of the bottom plate, and the guide hopper is fixedly arranged at the lower end of the bottom plate. The guide hopper is fixedly installed at the upper ends of the telescopic supporting legs, the spraying pipe is fixedly installed on the upper end face of the guide hopper, the pressure adjusting valve is fixedly installed at the bottom of the spraying pipe, the spraying pipe comprises a pressure adjusting sleeve, a pressure adjusting piston and a first spring, a water inlet is formed in the side wall of the pressure adjusting sleeve, and a water outlet is formed in the top of the pressure adjusting sleeve. The pressure adjusting piston is inserted into the pressure adjusting sleeve and elastically connected with the pressure adjusting sleeve through a first spring. The spray device has the advantages of high efficiency and environmental protection, and solves the problems that the spray device of the coal mine crusher in the prior art cannot be adaptively adjusted, so that water resources are seriously wasted, and the service life of the crusher is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, in particular to a coal mine crushing device for coal mine exploitation. Background Technique

[0002] In the traditional coal mine exploitation process, the crushing operation is one of the key links in coal processing, which directly affects the subsequent transportation, screening and utilization efficiency. However, this process is accompanied by significant environmental challenges, especially the generation of a large amount of dust and the high temperature problem in the operation area, which not only threatens the health of miners, but also pollutes the surrounding environment. In order to address these problems, existing crushing devices are generally equipped with a spraying system for dust reduction and temperature reduction.

[0003] The existing spraying system requires manual timing or manual adjustment of the water spraying amount according to experience, and cannot automatically adjust according to the real-time coal processing volume, resulting in waste of water resources or poor spraying effect. Especially in the case of large fluctuations in coal flow, it is difficult to adjust manually in a timely and accurate manner. Due to the lack of an effective water management mechanism, water is likely to accumulate inside the equipment, and the long-term humid environment accelerates the corrosion and wear of equipment components, shortening the service life of the equipment. Therefore, a coal mine crushing device for coal mine exploitation is needed to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a coal mine crushing device for coal mine exploitation, which has the advantages of high efficiency and environmental protection, and solves the problems that the spraying device of the existing coal mine crusher cannot be adaptively adjusted, resulting in serious waste of water resources and affecting the service life of the crusher.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A coal mine crushing device for coal mine exploitation, including a crusher main body, and an adaptive spraying device is fixedly installed at the upper end of the crusher main body;

[0006] The adaptive spraying device includes a bottom plate, telescopic legs, a feeding hopper, a spraying pipe and a pressure regulating valve. The telescopic legs are fixedly installed at the upper end of the bottom plate, the feeding hopper is fixedly installed at the upper end of the telescopic legs, the spraying pipe is fixedly installed on the upper end surface of the feeding hopper, the pressure regulating valve is fixedly installed at the bottom of the spraying pipe, and the spraying pipe includes a pressure regulating sleeve, a pressure regulating piston and a first spring.

[0007] As a preferred coal mine crushing device for coal mine exploitation of the utility model, the side wall of the pressure regulating sleeve is provided with a water inlet, the top of the pressure regulating sleeve is provided with a water outlet, the pressure regulating piston is inserted into the pressure regulating sleeve and elastically connected thereto through a first spring, the side wall of the pressure regulating piston is provided with a plurality of longitudinally arranged water inlet holes, and the top of the pressure regulating piston is provided with a water outlet hole communicating with the water inlet holes.

[0008] Preferably, as a coal mine crushing device for coal mine exploitation of the present utility model, a top block is provided at the bottom of the pressure regulating piston, and the bottom of the top block is in sliding contact connection with the upper end surface of the bottom plate.

[0009] Preferably, as a coal mine crushing device for coal mine exploitation of the present utility model, a spray head is provided at the top of the spray pipe, the spray head is rotationally connected with the spray pipe, spray holes are provided on the side wall of the spray head, and the spray holes are in a spiral structure.

[0010] Preferably, as a coal mine crushing device for coal mine exploitation of the present utility model, the material guiding hopper is in a conical funnel-shaped structure, and overflow holes are uniformly formed in the material guiding hopper.

[0011] Preferably, as a coal mine crushing device for coal mine exploitation of the present utility model, a waste hopper is provided at the lower end of the material guiding hopper, and a waste opening is provided on the waste hopper.

[0012] Preferably, as a coal mine crushing device for coal mine exploitation of the present utility model, a second spring is arranged inside the telescopic support leg, and the material guiding hopper and the bottom plate are elastically slidably connected through the telescopic support leg and the spring.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By arranging an adaptive spray device at the upper end of the crusher main body, the present utility model can automatically adjust the start and stop of spraying and the spraying amount according to the coal input amount. When the weight of the coal increases, the material guiding hopper is pressed downwards, and the top block forces the pressure regulating piston to move upwards, thereby gradually opening more water inlet holes, increasing the water flow pressure and spraying flow rate. This mechanism ensures that the spraying amount matches the actual demand, avoiding excessive consumption of water resources, effectively controlling the dust and temperature in the operation area, and improving the safety and comfort of the working environment.

[0015] 2. Through the overflow hole design of the material guiding hopper, the present utility model effectively prevents water accumulation inside the equipment, protects the equipment, and extends the service life. The configuration of the waste hopper and the waste opening realizes the centralized collection and treatment of coal ash-containing wastewater, which not only prevents the direct pollution of the environment by the wastewater, but also provides the possibility for the recycling and reuse of the wastewater, conforms to the concept of sustainable development, and realizes the circular utilization of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the spray device structure of the present utility model;

[0018] Figure 3 is a top view of the spray device of the present utility model;

[0019] Figure 4 is the Figure 3 A - A sectional view in this utility model;

[0020] Figure 5 is the Figure 3 B - B sectional view in this utility model;

[0021] Figure 6 is the Figure 5 enlarged view at C in this utility model;

[0022] Figure 7 is the front sectional view of the spray head of this utility model.

[0023] In the figure: 1. crusher main body; 2. adaptive spray device; 201. bottom plate; 202. telescopic support leg; 2021. second spring; 203. feeding hopper; 2031. overflow hole; 204. spray pipe; 205. pressure regulating valve; 2051. pressure regulating sleeve; 2052. pressure regulating piston; 2053. first spring; 2054. water inlet; 2055. water outlet; 2056. water inlet hole; 2057. water outlet hole; 2058. top block; 206. spray head; 2061. spray hole; 207. waste hopper; 2071. waste outlet. Specific embodiments

[0024] Please refer to Figures 1-7 , a coal mine crushing device for coal mine exploitation, including a crusher main body 1, and an adaptive spray device 2 is fixedly installed at the upper end of the crusher main body 1;

[0025] The adaptive spray device 2 includes a bottom plate 201, telescopic support legs 202, a feeding hopper 203, a spray pipe 204 and a pressure regulating valve 205. The telescopic support legs 202 are fixedly installed at the upper end of the bottom plate 201, the feeding hopper 203 is fixedly installed at the upper end of the telescopic support legs 202, the spray pipe 204 is fixedly installed on the upper end surface of the feeding hopper 203, the pressure regulating valve 205 is fixedly installed at the bottom of the spray pipe 204, and the spray pipe 204 includes a pressure regulating sleeve 2051, a pressure regulating piston 2052 and a first spring 2053.

[0026] Furthermore, a water inlet 2054 is arranged on the side wall of the pressure regulating sleeve 2051, a water outlet 2055 is arranged at the top of the pressure regulating sleeve 2051, the pressure regulating piston 2052 is inserted into the pressure regulating sleeve 2051 and is elastically connected thereto through the first spring 2053. A plurality of longitudinally arranged water inlet holes 2056 are arranged on the side wall of the pressure regulating piston 2052, and a water outlet hole 2057 communicating with the water inlet holes 2056 is arranged at the top of the pressure regulating piston 2052.

[0027] When the pressure-regulating piston 2052 slides upward, the water inlet holes 2056 on the side wall of the pressure-regulating piston 2052 gradually enter the pressure-regulating piston 2052. As the number of water inlet holes 2056 connected to the water inlet 2054 increases, the water flow pressure at the water outlet hole 2057 gradually increases, thereby increasing the spraying flow rate.

[0028] Further, a top block 2058 is provided at the bottom of the pressure-regulating piston 2052, and the bottom of the top block 2058 is in sliding contact connection with the upper end surface of the bottom plate 201.

[0029] When the material guide hopper 203 slides downward under the pressure of the coal mine, the top block 2058 pushes the piston upward, so that the water inlet 2054 is connected to the water outlet 2055 for spraying. As the weight of the coal mine increases, the opening degree of the spray head 206 is automatically adjusted according to the amount of coal mine materials.

[0030] Further, a spray head 206 is provided at the top of the spray pipe 204. The spray head 206 is rotatably connected to the spray pipe 204. Spray holes 2061 are provided on the side wall of the spray head 206, and the spray holes 2061 are in a spiral structure.

[0031] The coal mine is sprayed through the spray head 206 for dust reduction and temperature reduction treatment. The spiral spray head 206 enables the spray head 206 to rotate during spraying, thereby improving the uniformity of spraying.

[0032] Further, the material guide hopper 203 is in a conical funnel shape, and overflow holes 2031 are evenly provided on the material guide hopper 203.

[0033] When the spray head 206 sprays too much, the water flows out through the overflow holes 2031, preventing excessive moisture inside the equipment and affecting the service life of the equipment.

[0034] Further, a waste hopper 207 is provided at the lower end of the material guide hopper 203, and a waste outlet 2071 is provided on the waste hopper 207.

[0035] The waste hopper 207 catches the overflowed waste water containing coal ash, which is discharged through the waste outlet 2071 for centralized treatment, preventing the waste water from polluting the soil. At the same time, it can be recycled to achieve the purpose of saving water.

[0036] Further, a second spring 2021 is provided inside the telescopic support leg 202. The material guide hopper 203 and the bottom plate 201 are elastically slidably connected through the telescopic support leg 202 and the spring.

[0037] With the assistance of the second spring 2021 for support, it is avoided that a very small amount of coal mine presses the pressure-regulating piston 2052 to the maximum flow rate, resulting in waste of water resources.

[0038] When this device is in use, connect the water inlet 2054 of the pressure regulating valve 205 to the water source. When starting the coal crushing operation in the coal mine, as the input amount of coal increases, the material guiding hopper 203 slides down naturally under the action of the gravity of the coal, and the top block 2058 pushes the pressure regulating piston 2052 to move upward, automatically increasing the water spraying amount. This process does not require frequent manual intervention. After being sprayed with water, the coal enters the main body 1 of the crusher along with a small amount of water flow and is crushed by the crusher. The excess water flows into the waste hopper 207 through the overflow hole 2031, and the crushed slag in the overflow hole 2031 and the waste hopper 207 should be cleaned in a timely manner.

[0039] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A coal mine crushing device for coal mine exploitation, comprising a crusher main body (1), characterized in that: An adaptive spraying device (2) is fixedly installed at the upper end of the crusher main body (1); The adaptive spraying device (2) includes a bottom plate (201), telescopic legs (202), a feeding hopper (203), a spray pipe (204), and a pressure regulating valve (205). The telescopic legs (202) are fixedly installed at the upper end of the bottom plate (201), the feeding hopper (203) is fixedly installed at the upper end of the telescopic legs (202), the spray pipe (204) is fixedly installed on the upper end surface of the feeding hopper (203), the pressure regulating valve (205) is fixedly installed at the bottom of the spray pipe (204), and the spray pipe (204) includes a pressure regulating sleeve (2051), a pressure regulating piston (2052), and a first spring (2053).

2. A coal mine crushing device for coal mine exploitation according to claim 1, characterized in that: The side wall of the pressure regulating sleeve (2051) is provided with a water inlet (2054), the top of the pressure regulating sleeve (2051) is provided with a water outlet (2055), the pressure regulating piston (2052) is inserted into the pressure regulating sleeve (2051) and elastically connected thereto through the first spring (2053). The side wall of the pressure regulating piston (2052) is provided with a plurality of longitudinally arranged water inlet holes (2056), and the top of the pressure regulating piston (2052) is provided with a water outlet hole (2057) communicating with the water inlet holes (2056).

3. A coal mine crushing device for coal mine exploitation according to claim 2, characterized in that: A top block (2058) is arranged at the bottom of the pressure regulating piston (2052), and the bottom of the top block (2058) is in sliding contact connection with the upper end surface of the bottom plate (201).

4. A coal mine crushing device for coal mine exploitation according to claim 1, characterized in that: A spray head (206) is arranged at the top of the spray pipe (204), the spray head (206) is rotatably connected to the spray pipe (204), and the side wall of the spray head (206) is provided with spray holes (2061), and the spray holes (2061) are of a spiral structure.

5. A coal mine crushing device for coal mine exploitation as claimed in claim 1, characterized in that: The feeding hopper (203) is of a conical funnel-shaped structure, and overflow holes (2031) are uniformly arranged on the feeding hopper (203).

6. The coal mine crushing device for coal mine exploitation according to claim 5, wherein: A waste hopper (207) is arranged at the lower end of the feeding hopper (203), and a waste opening (2071) is arranged on the waste hopper (207).

7. A coal mine crushing device for coal mine exploitation as claimed in claim 1, characterized in that: A second spring (2021) is arranged inside the telescopic legs (202), and the feeding hopper (203) and the bottom plate (201) are elastically slidably connected through the telescopic legs (202) and the spring in cooperation.

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