Spraying and dust-settling device of coal mining machine

Abstract

The utility model discloses a coal mining machine spraying and dust-settling device, which relates to the technical field of coal mining and comprises a U-shaped rack, the U-shaped rack is of a U-shaped bent sheet structure, a pipe orifice groove is formed in the middle of the U-shaped rack, a spraying pipe body is mounted in the pipe orifice groove, and the spraying pipe body is provided with a spraying nozzle. The top end face of the spray pipe body and the bottom end face of the spray pipe body are each provided with a positioning clamping groove, the top end face of the U-shaped rack and the bottom end face of the U-shaped rack are each provided with a plurality of screwing bolts, and the bottom ends of the screwing bolts stretch into the positioning clamping grooves of the spray pipe body. And a plurality of spray nozzles are arranged on the side wall of the spray pipe body. According to the connecting mode, mounting and dismounting are convenient, connection is firm and reliable, the U-shaped rack or the spraying pipe body can be conveniently and independently replaced and maintained in the later period, the connecting bolts are installed on the surface of the U-shaped rack, the U-shaped rack is installed at the front end of the coal mining machine through the connecting bolts, and therefore the U-shaped rack can be dismounted or mounted from the front end of the coal mining machine, and dismounting and maintaining are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a spray dust reduction device for a coal shearer. Background Technique

[0002] A coal shearer is a mechanical device used for coal mining, mainly for coal mining in underground coal mines and open-pit coal mines. It cuts coal from the coal seam mechanically and loads it onto the transportation equipment. A coal shearer usually includes a cutting unit, a traction unit, an electrical system and other auxiliary devices.

[0003] The spray dust reduction device for a coal shearer is an important device used in the process of coal mining. Its main function is to spray water mist when the coal shearer is working, so as to achieve the purposes of dust reduction, temperature reduction, fire extinguishing, etc. In the existing ones, the spray device of the coal shearer is not easy to disassemble. Once the spray dust reduction device is damaged during use, it is difficult to disassemble, maintain and replace parts, resulting in that only the whole set of spray dust reduction device can be replaced after the spray dust reduction device for the coal shearer is damaged, and the maintenance cost is high. Content of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a spray dust reduction device for a coal shearer to solve the technical problem that the spray dust reduction device for a coal shearer is an important device used in the process of coal mining. Its main function is to spray water mist when the coal shearer is working, so as to achieve the purposes of dust reduction, temperature reduction, fire extinguishing, etc. In the existing ones, the spray device of the coal shearer is not easy to disassemble. Once the spray dust reduction device is damaged during use, it is difficult to disassemble, maintain and replace parts, resulting in that only the whole set of spray dust reduction device can be replaced after the spray dust reduction device for the coal shearer is damaged, and the maintenance cost is high.

[0005] To achieve the above purpose, the utility model is realized through the following technical solutions:

[0006] A spray dust reduction device for a coal shearer includes a U-shaped frame. The U-shaped frame is arranged in a U-shaped bent plate structure. A pipe orifice groove is arranged in the middle of the U-shaped frame. A spray pipe body is installed inside the pipe orifice groove. A positioning card slot is opened on the top end surface and the bottom end surface of the spray pipe body respectively. A plurality of tightening bolts are installed on the top end surface and the bottom end surface of the U-shaped frame respectively. The bottom end of the tightening bolt extends into the positioning card slot of the spray pipe body. A plurality of spray nozzles are arranged on the side wall of the spray pipe body.

[0007] As a preferred technical solution of the utility model, a connecting bolt is installed on the surface of the U-shaped frame, and the U-shaped frame is installed at the front end of the coal shearer through the connecting bolt.

[0008] As a preferred technical solution of the utility model, a plurality of the spray nozzles arranged on the side wall of the spray pipe body are arranged staggeredly.

[0009] As a preferred technical solution of the present utility model, an arc-shaped bent plate is fixedly installed on the side wall of the U-shaped frame. A through arc-shaped hole is provided in the middle of the arc-shaped bent plate, and several spray nozzles on the side wall of the spray pipe body are respectively installed in the arc-shaped hole.

[0010] As a preferred technical solution of the present utility model, a drain pipe cavity is provided inside each spray nozzle. A pipe cavity tongue piece is arranged in the middle of the inner wall of the drain pipe cavity. The pipe cavity tongue piece is semi-circular in shape, and several small water holes are provided in the middle of the pipe cavity tongue piece.

[0011] As a preferred technical solution of the present utility model, an ear that turns outwards is provided at the opening position of the side wall of the U-shaped frame.

[0012] As a preferred technical solution of the present utility model, a pipe interface is provided at the end face of the spray pipe body. A pipe inner cavity is provided inside the spray pipe body. The pipe interface communicates with the pipe inner cavity, and the pipe inner cavity communicates with several drain pipe cavities.

[0013] The beneficial effects of the present utility model are as follows:

[0014] In the present utility model, the U-shaped frame is set as a U-shaped bent plate structure, and a pipe orifice groove is provided in the middle of the U-shaped frame, which is convenient for installing the spray pipe body inside the pipe orifice groove. The spray pipe body is installed in the pipe orifice groove. Through the top end face and the bottom end face of the spray pipe body, positioning card slots are respectively provided. By installing several tightening bolts at the top end face and the bottom end face of the U-shaped frame and extending the bottom ends into the positioning card slots of the spray pipe body, the spray pipe body is firmly locked inside the U-shaped frame. This connection method is convenient for installation and disassembly, and the connection is firm and reliable, which is convenient for separately replacing and maintaining the U-shaped frame or the spray pipe body in the later stage. And through the surface of the U-shaped frame, connection bolts are installed, and the U-shaped frame is installed at the front end of the coal mining machine through the connection bolts, so that the U-shaped frame can be disassembled or installed from the front end of the coal mining machine, which is convenient for disassembly and maintenance.

[0015] In the present utility model, several spray nozzles are provided on the side wall of the spray pipe body. The several spray nozzles provided on the side wall of the spray pipe body are arranged staggeredly, which is convenient for evenly spraying the mist. A drain pipe cavity is provided inside each spray nozzle. A pipe cavity tongue piece is arranged in the middle of the inner wall of the drain pipe cavity. The pipe cavity tongue piece is semi-circular in shape, and several small water holes are provided in the middle of the pipe cavity tongue piece.

[0016] Water source enters the inside of the pipe inner cavity and is conveyed to the pipe cavity tongue piece through the drain pipe cavity. The water column is separated into several small water droplets through the water holes. Under high pressure, water forms small water droplets through the water holes and forms a mist and sprays outwards from the spray nozzle. These water mists quickly diffuse in the air and mix with coal dust to achieve the effects of dust reduction and temperature reduction.

[0017] Other advantages, objectives and features of the present utility model will, to some extent, be elaborated in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic view of the external structure of the coal mining machine spray dust suppression device of the present utility model Figure 1 ;

[0019] Figure 2 is a schematic view of the external structure of the coal mining machine spray dust suppression device of the present utility model Figure 2 ;

[0020] Figure 3 is a schematic end view of the coal mining machine spray dust suppression device of the present utility model;

[0021] Figure 4 is a schematic sectional end view of the coal mining machine spray dust suppression device of the present utility model;

[0022] Figure 5 is a partial enlarged view at A of the attached Figure 4 of the specification of the present utility model;

[0023] In the figure: U-shaped frame 1, tightening bolt 2, connecting bolt 3, spray pipe body 4, pipe interface 5, ear side 6, arc hole 7, spray nozzle 8, arc-shaped bent plate 9, pipe orifice groove 10, positioning card slot 11, pipe inner cavity 12, drain pipe cavity 13, pipe cavity tongue piece 14, water liquid small hole 15. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0026] It should be noted that like reference numerals and letters refer to like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the above description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "one side" and "the other side" is based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship in which the product of the present utility model is customarily placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0028] In addition, terms such as "the same" do not mean that the components are required to be absolutely the same, but there may be slight differences. The term "vertical" only means that the positional relationship between components is more vertical relative to "parallel", and does not mean that the structure must be completely vertical, but may be slightly inclined.

[0029] Embodiment 1

[0030] Please refer to Figures 1-5 , a technical solution provided by the present utility model: a coal shearer spray dust suppression device, including a U-shaped frame 1. The U-shaped frame 1 is set as a U-shaped bent plate structure. A pipe orifice groove 10 is arranged in the middle of the U-shaped frame 1. A spray pipe body 4 is installed inside the pipe orifice groove 10. Positioning card slots 11 are respectively opened on the top end surface and the bottom end surface of the spray pipe body 4. A plurality of tightening bolts 2 are respectively installed on the top end surface and the bottom end surface of the U-shaped frame 1. The bottom end of the tightening bolt 2 extends into the positioning card slot 11 of the spray pipe body 4. A plurality of spray nozzles 8 are arranged on the side wall of the spray pipe body 4.

[0031] A connecting bolt 3 is installed on the surface of the U-shaped frame 1. The U-shaped frame 1 is installed at the front end of the coal shearer through the connecting bolt 3.

[0032] In the present utility model, the U-shaped frame 1 is arranged in a U-shaped bent plate structure, and a pipe orifice groove 10 is arranged in the middle of the U-shaped frame 1, which is convenient for installing the spray pipe body 4 inside the pipe orifice groove 10. The spray pipe body 4 is installed in the pipe orifice groove 10. Positioning card slots 11 are respectively arranged on the top end surface and the bottom end surface of the spray pipe body 4. A plurality of tightening bolts 2 are respectively installed on the top end surface and the bottom end surface of the U-shaped frame 1, and the bottom ends of the tightening bolts 2 extend into the positioning card slots 11 of the spray pipe body 4, so as to firmly lock the spray pipe body 4 inside the U-shaped frame 1. This connection method is convenient for installation and disassembly, and the connection is firm and reliable, which is convenient for separately replacing and repairing the U-shaped frame 1 or the spray pipe body 4 in the later stage. And connecting bolts 3 are installed on the surface of the U-shaped frame 1, and the U-shaped frame 1 is installed at the front end of the shearer through the connecting bolts 3, so that the U-shaped frame 1 can be disassembled or installed from the front end of the shearer, which is convenient for disassembly and maintenance.

[0033] A plurality of spray nozzles 8 arranged on the side wall of the spray pipe body 4 are arranged staggeredly.

[0034] A drain pipe cavity 13 is arranged inside each spray nozzle 8. A pipe cavity tongue piece 14 is arranged in the middle of the inner wall of the drain pipe cavity 13. The pipe cavity tongue piece 14 is in a semi-circular arc shape, and a plurality of small water holes 15 are arranged in the middle of the pipe cavity tongue piece 14.

[0035] Specifically, in this embodiment, the present utility model is provided with a plurality of spray nozzles 8 on the side wall of the spray pipe body 4. A plurality of spray nozzles 8 arranged on the side wall of the spray pipe body 4 are arranged staggeredly, which is convenient for evenly spraying the fog body. A drain pipe cavity 13 is arranged inside each spray nozzle 8. A pipe cavity tongue piece 14 is arranged in the middle of the inner wall of the drain pipe cavity 13. The pipe cavity tongue piece 14 is in a semi-circular arc shape, and a plurality of small water holes 15 are arranged in the middle of the pipe cavity tongue piece 14.

[0036] Embodiment 2

[0037] Please refer to Figures 1-5 , another technical solution provided by the present utility model. This embodiment has the same parts as the above-mentioned Embodiment 1, and the same parts will not be elaborated in this embodiment. The specific differences are as follows:

[0038] A shearer spray dust reduction device includes a U-shaped frame 1. The U-shaped frame 1 is arranged in a U-shaped bent plate structure. A pipe orifice groove 10 is arranged in the middle of the U-shaped frame 1. A spray pipe body 4 is installed inside the pipe orifice groove 10. Positioning card slots 11 are respectively arranged on the top end surface and the bottom end surface of the spray pipe body 4. A plurality of tightening bolts 2 are respectively installed on the top end surface and the bottom end surface of the U-shaped frame 1. The bottom ends of the tightening bolts 2 extend into the positioning card slots 11 of the spray pipe body 4. A plurality of spray nozzles 8 are arranged on the side wall of the spray pipe body 4.

[0039] The surface of the U-shaped frame 1 is mounted with connecting bolts 3, and the U-shaped frame 1 is mounted at the front end of the shearer through the connecting bolts 3.

[0040] In the utility model, the U-shaped frame 1 is set as a U-shaped bent plate structure, and a pipe orifice groove 10 is arranged in the middle of the U-shaped frame 1, which is convenient for installing a spray pipe body 4 inside the pipe orifice groove 10. The spray pipe body 4 is installed in the pipe orifice groove 10. Positioning clamping grooves 11 are respectively arranged on the top end surface and the bottom end surface of the spray pipe body 4. A plurality of tightening bolts 2 are respectively mounted on the top end surface and the bottom end surface of the U-shaped frame 1, and the bottom ends of the tightening bolts 2 extend into the positioning clamping grooves 11 of the spray pipe body 4, so as to firmly lock the spray pipe body 4 inside the U-shaped frame 1. This connection method is convenient for installation and disassembly, and the connection is firm and reliable, which is convenient for separately replacing and maintaining the U-shaped frame 1 or the spray pipe body 4 in the later stage. Moreover, the surface of the U-shaped frame 1 is mounted with connecting bolts 3, and the U-shaped frame 1 is mounted at the front end of the shearer through the connecting bolts 3, so that the U-shaped frame 1 can be disassembled or installed from the front end of the shearer, which is convenient for disassembly and maintenance.

[0041] An arc-shaped bent plate 9 is fixedly mounted on the side wall of the U-shaped frame 1, and a through arc-shaped hole 7 is arranged in the middle of the arc-shaped bent plate 9. A plurality of spray nozzles 8 on the side wall of the spray pipe body 4 are respectively installed in the arc-shaped hole 7.

[0042] An arc-shaped bent plate 9 is fixedly mounted on the side wall of the U-shaped frame 1, and a through arc-shaped hole 7 is arranged in the middle of the arc-shaped bent plate 9. A plurality of spray nozzles 8 on the side wall of the spray pipe body 4 are respectively installed in the arc-shaped hole 7, which is convenient for the installation and positioning of the spray pipe body 4.

[0043] An ear 6 that turns outwards is arranged at the opening position of the side wall of the U-shaped frame 1 to improve the structural aesthetics.

[0044] A pipe interface 5 is arranged on the end face of the spray pipe body 4, and a pipe inner cavity 12 is arranged inside the spray pipe body 4. The pipe interface 5 communicates with the pipe inner cavity 12, and the pipe inner cavity 12 communicates with a plurality of drain pipe cavities 13. It is convenient to convey water source into the drain pipe cavities 13 of each spray nozzle 8.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A coal shearer spray dust suppression device, including a U-shaped frame (1), characterized in that: The U-shaped frame (1) is arranged in a U-shaped bent plate structure. A pipe orifice groove (10) is arranged in the middle of the U-shaped frame (1). A spray pipe body (4) is installed inside the pipe orifice groove (10). Positioning card slots (11) are respectively formed in the top end surface and the bottom end surface of the spray pipe body (4). A plurality of tightening bolts (2) are respectively installed on the top end surface and the bottom end surface of the U-shaped frame (1). The bottom ends of the tightening bolts (2) extend into the positioning card slots (11) of the spray pipe body (4). A plurality of spray nozzles (8) are arranged on the side wall of the spray pipe body (4).

2. The coal shearer spray dust suppression device according to claim 1, characterized in that: A connecting bolt (3) is installed on the surface of the U-shaped frame (1). The U-shaped frame (1) is installed at the front end of the coal shearer through the connecting bolt (3).

3. The coal shearer spray dust suppression device according to claim 1, wherein: The plurality of spray nozzles (8) arranged on the side wall of the spray pipe body (4) are arranged staggeredly.

4. The coal shearer spray dust suppression device according to claim 3, characterized in that: An arc-shaped bent plate (9) is fixedly installed on the side wall of the U-shaped frame (1). A through arc-shaped hole (7) is formed in the middle of the arc-shaped bent plate (9). The plurality of spray nozzles (8) on the side wall of the spray pipe body (4) are respectively installed in the arc-shaped hole (7).

5. The coal shearer spray dust suppression device according to claim 4, wherein: A drain pipe cavity (13) is formed inside each spray nozzle (8). A pipe cavity tongue piece (14) is arranged in the middle of the inner wall of the drain pipe cavity (13). The pipe cavity tongue piece (14) is semi-circular arc-shaped. A plurality of small water holes (15) are formed in the middle of the pipe cavity tongue piece (14).

6. The spray dust suppression device for a coal shearer according to claim 1, wherein: An ear (6) that turns outwards is arranged at the opening position of the side wall of the U-shaped frame (1).

7. The coal shearer spray dust suppression device according to claim 6, characterized in that: A pipe interface (5) is arranged on the end surface of the spray pipe body (4). A pipe inner cavity (12) is arranged inside the spray pipe body (4). The pipe interface (5) is communicated with the pipe inner cavity (12). The pipe inner cavity (12) is communicated with a plurality of drain pipe cavities (13).

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