Spraying equipment for underground spraying support material and using method

Abstract

The invention relates to spraying equipment for an underground spraying support material and a using method. The underground spraying and supporting material spraying equipment comprises a vehicle body, a heating and heat preservation material box, a first pump, a flushing material box, a second pump and a spraying gun assembly, the vehicle body is provided with a mounting platform, the heating and heat preservation material box and the first pump are arranged on the mounting platform, an inlet of the first pump is communicated with the heating and heat preservation material box, and the flushing material box and the second pump are arranged on the mounting platform; the spray gun assembly comprises a spray gun and a spray gun valve group, an outlet of the first pump and an outlet of the second pump are both communicated with the spray gun valve group, and the spray gun valve group is communicated with the spray gun. According to the underground spraying supporting material spraying equipment, spraying of a high polymer material can be achieved, construction of thin spraying supporting is achieved, the spraying equipment is simple in structure, miniaturization can be achieved, and therefore the underground spraying supporting material spraying equipment can pass through the working environment with the small passing space, adapt to different coal mine scenes and achieve convenient construction.

Description

Technical Field

[0001] The present invention relates to the technical field of underground coal mine equipment, and in particular to underground spraying support material spraying equipment and a use method thereof. Background Art

[0002] Thin spray support is a targeted solution to the lack of temporary support for the side of the excavation working face and to replace the laying of metal mesh. The thin spray support material is an organic polymer material for mining, which has high performance and high viscosity and requires special spraying equipment. At the same time, the construction site of spray support materials is mostly the excavation working face or the tunnel with poor conditions, with small passage space and poor traffic conditions, requiring small, easy-to-use and convenient construction equipment to enter the construction. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention proposes an underground spraying support material spraying equipment, which can realize the spraying of polymer materials and the construction of thin spraying support. In addition, it has a simple structure and can be miniaturized, so that it can pass through working environments with small passage spaces, adapt to different coal mine scenes, and realize convenient construction.

[0005] An embodiment of the present invention provides a method for using a downhole spray support material spraying device.

[0006] According to an embodiment of the present invention, the underground spraying support material spraying equipment includes a vehicle body, a heating and insulation material box, a first pump, a flushing material box, a second pump and a spray gun assembly, the vehicle body has a mounting platform, the heating and insulation material box and the first pump are arranged on the mounting platform, the heating and insulation material box is used to store spray materials, the inlet of the first pump is connected to the heating and insulation material box, the flushing material box and the second pump are arranged on the mounting platform, the flushing material box is used to store flushing liquid, the inlet of the second pump is connected to the flushing material box, the spray gun assembly includes a spray gun and a spray gun valve group, the outlet of the first pump and the outlet of the second pump are both connected to the spray gun valve group, and the spray gun valve group is connected to the spray gun.

[0007] The underground spraying support material spraying equipment of the embodiment of the present invention can realize the spraying of polymer materials and realize the construction of thin spraying support. In addition, the underground spraying support material spraying equipment of the embodiment of the present invention has a simple structure and can be miniaturized, so that it can pass through the working environment with small passage space, adapt to different coal mine scenes, and realize convenient construction.

[0008] In some embodiments, the vehicle body includes a track chassis and a drive control assembly, the track chassis has the mounting platform, the drive control assembly is disposed on the mounting platform, and the drive control assembly is connected to the track chassis.

[0009] In some embodiments, the tracked chassis is a hydraulically driven tracked chassis; the drive control component includes an electronic control box, a hydraulic pump station and a first hydraulic valve, the electronic control box is connected to the hydraulic pump station, the hydraulic pump station has a first output pipeline, the first output pipeline is provided with the first hydraulic valve, and the first output pipeline is connected to the tracked chassis.

[0010] In some embodiments, the hydraulic pump station has a second output pipeline, the vehicle body further includes a supporting oil cylinder and a second hydraulic valve, there are multiple supporting oil cylinders, and the multiple supporting oil cylinders are spaced apart at the edge of the crawler chassis. The supporting oil cylinders are connected to the second output pipeline, and the second hydraulic valve is provided on the second output pipeline.

[0011] In some embodiments, the heating and insulation material box includes a box body and a mixer, the box body is arranged on the mounting platform, and the mixer is arranged on the box body to stir the spraying material in the box body.

[0012] In some embodiments, the hydraulic pump station has a third output pipeline, the vehicle body further includes a third hydraulic valve, the mixer includes a hydraulic motor and a mixing shaft, the hydraulic motor is arranged on the box body, the hydraulic motor is connected to the third output pipeline, the third output pipeline is provided with the third hydraulic valve, and the mixing shaft is arranged on the output shaft of the hydraulic motor.

[0013] In some embodiments, the first hydraulic valve is arranged at one end of the mounting platform in the first direction, the hydraulic pump station and the electric control box are adjacent to the first hydraulic valve, the hydraulic pump station and the electric control box are spaced apart in the second direction, the second direction is perpendicular to the first direction, the second direction is parallel to the axial direction of the track wheel of the crawler chassis, the flushing tank and the second pump are opposite in the second direction, in the first direction, the heating and insulation tank is located between the flushing tank and the hydraulic pump station, and the first pump is located between the second pump and the electric control box.

[0014] In some embodiments, the downhole spraying support material spraying equipment further includes a mounting frame, and the first pump and the second pump are installed on the mounting platform through the mounting frame, and the mounting frame is connected to the flushing material box.

[0015] In some embodiments, the spray gun valve group has a first feed port, a second feed port and an outlet port, and the spray gun assembly further includes a first pipe, a second pipe and a third pipe, the first pipe connects the outlet of the first pump and the first feed port, the second pipe connects the outlet of the second pump and the second feed port, and the third pipe connects the outlet and the inlet of the spray gun.

[0016] The method for using the underground spraying support material spraying equipment of the embodiment of the present invention is as follows: according to the spraying equipment, the vehicle body is operated to move to the specified position, the first pump and the second pump are turned on, the spray gun valve group is operated to control the connection between the first pump and the spray gun, the spray gun is turned on to spray the spray material, and after the spraying operation is completed, the first pump is closed, the spray gun valve group is operated to disconnect the first pump and the spray gun and connect the second pump and the spray gun, the flushing liquid pipe flushing operation is performed, and then the second pump and the spray gun are closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural schematic diagrams of the underground spraying support material spraying equipment according to the embodiment of the present invention;

[0018] Figure 2 This is the second structural schematic diagram of the underground spraying support material spraying equipment of the embodiment of the present invention (wherein the spray gun assembly is not shown);

[0019] Reference numerals:

[0020] Spraying equipment 100;

[0021] Vehicle body 1, mounting platform 11, drive control component 12, electric control box 121, hydraulic pump station 122, first hydraulic valve 123, second hydraulic valve 124, third hydraulic valve 125, crawler chassis 13, supporting cylinder 14, heating and insulation material box 2, box body 21, mixer 22, first pump 3, flushing material box 4, spray gun assembly 5, spray gun 51, spray gun valve group 52, first pipeline 53, second pipeline 54, third pipeline 55, mounting frame 6, second pump 7. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0023] Please refer to the attached Figure 1 and Figure 2 , a downhole spraying support material spraying device 100 and a method of use according to an embodiment of the present invention are described in detail.

[0024] The underground spraying support material spraying equipment 100 includes a vehicle body 1, a heating and heat-insulating material box 2, a first pump 3, a flushing material box 4, a second pump 7 and a spray gun assembly 5. The vehicle body 1 has a mounting platform 11. The heating and heat-insulating material box 2 and the first pump 3 are arranged on the mounting platform 11, the heating and heat-insulating material box 2 is used to store the spraying material, and the inlet of the first pump 3 is connected to the heating and heat-insulating material box 2. The flushing material box 4 and the second pump 7 are arranged on the mounting platform 11, the flushing material box 4 is used to store the flushing liquid, and the inlet of the second pump 7 is connected to the flushing material box 4. The spray gun assembly 5 includes a spray gun and a spray gun valve group 52, the outlet of the first pump 3 and the outlet of the second pump 7 are both connected to the spray gun valve group 52, and the spray gun valve group 52 is connected to the spray gun 51.

[0025] The method for using the underground spray support material spraying equipment of the embodiment of the present invention adopts the underground spray support material spraying equipment 100 of the embodiment of the present invention. Before operation, the heating and insulation material box 2 is loaded with thin spray material, and the heating and insulation material box 2 heats and insulates the thin spray material to ensure that the thin spray material is at a suitable temperature and the performance of the thin spray material is in a good state. The flushing liquid is loaded into the flushing material box 7. The operating vehicle body 1 is moved to the designated position, and the first pump 3 and the second pump 7 are turned on. The first pump 3 pumps the spray material in the heating and insulation material box 2 toward the spray gun 51, and the second pump 7 pumps the flushing liquid in the flushing material box 4 toward the spray gun 51. The spray gun valve group 52 is operated to control the first pump 3 to communicate with the spray gun 51, and the spray gun 51 is opened to spray the thin spray material. At this time, the flushing liquid is blocked by the spray gun valve group 52 and temporarily stored in the pipeline. After the spraying operation is completed, the first pump 3 is turned off to stop pumping the thin-film spray material to the spray gun 51, and then the spray gun valve group 52 is operated to disconnect the first pump 3 and the spray gun 51 and connect the second pump 7 and the spray gun 51, so that the flushing liquid temporarily stored in the pipeline is discharged through the spray gun valve group 52 and the spray gun 51, and the flushing liquid flushing operation is performed. After the flushing is completed, the second pump 7 and the spray gun 51 are turned off.

[0026] The underground spraying support material spraying equipment 100 of the embodiment of the present invention can be moved to a designated construction position by operating the vehicle body 1, and the heating and insulation material box 2 and the spray gun assembly 5 are connected by the first pump 3, so that the thin spray material can be pumped to the spray gun 51, and the flushing material box 4 and the spray gun assembly 5 are connected by the second pump 7, so that the flushing liquid can be pumped to the spray gun, and the thin spray material and the flushing liquid can be sprayed separately by controlling the spray gun valve group 52, so as to realize the spraying of the thin spray material, and flush the spray gun and local pipelines after spraying, so as to avoid the accumulation of the thin spray material on the pipeline from the spray gun valve group 52 to the spray gun 51 and on the spray gun 51, thereby ensuring the reusability of the spray gun 51.

[0027] Therefore, the underground spraying support material spraying device 100 of the embodiment of the present invention can realize the spraying of polymer materials and the construction of thin spraying support. In addition, the underground spraying support material spraying device 100 of the embodiment of the present invention has a simple structure and can be miniaturized, so that it can pass through the working environment with small passage space, adapt to different coal mine scenes, and realize convenient construction.

[0028] In some embodiments, the vehicle body 1 includes a crawler chassis 13 and a drive control assembly 12, the crawler chassis 13 has a mounting platform 11, the drive control assembly 12 is arranged on the mounting platform 11, and the drive control assembly 12 is connected to the crawler chassis 13. The vehicle body 1 adopts a crawler chassis 13, which has a large ground contact area, large friction with the ground, and good grip, and can be applied to various complex terrains, further improving the passability of the underground spraying support material spraying equipment 100 of the embodiment of the present invention.

[0029] In some embodiments, the crawler chassis 13 is a hydraulically driven crawler chassis 13. Specifically, the crawler chassis 13 is a hydraulically driven double track wheel.

[0030] The drive control assembly 12 includes an electric control box 121, a hydraulic pump station 122 and a first hydraulic valve 123. The electric control box 121 is connected to the hydraulic pump station 122. The hydraulic pump station 122 has a first output pipeline (not shown in the figure). The first output pipeline is provided with a first hydraulic valve 123. The first output pipeline is connected to the crawler chassis 13. The electric control box 121 provides power to the hydraulic pump station 122 and controls the start and stop of the hydraulic pump station 122. The first hydraulic valve 123 controls the on and off of the first output pipeline, and then controls the walking of the crawler chassis 13.

[0031] The personnel controls the start and stop of the hydraulic pump station 122 by operating the electric control box 121 , and controls the movement and stop of the crawler chassis 13 by operating the first hydraulic valve 123 .

[0032] In some embodiments, the hydraulic pump station 122 has a second output pipeline (not shown in the figure). The vehicle body 1 further includes a supporting oil cylinder 14 and a second hydraulic valve 124. The supporting oil cylinder 14 has a plurality of supporting oil cylinders 14, and the plurality of supporting oil cylinders 14 are arranged at intervals on the edge of the crawler chassis 13. The supporting oil cylinder 14 is connected to the second output pipeline, and the second output pipeline is provided with a second hydraulic valve 124, which controls the on-off of the second output pipeline.

[0033] When using the underground spray support material spraying equipment 100 according to the embodiment of the present invention for construction, after the vehicle body 1 moves to the designated construction position, the second hydraulic valve 124 is operated to connect the second output pipeline, and the multiple supporting cylinders 14 are controlled to extend so that the multiple supporting cylinders 14 support the ground, thereby fixing the vehicle body 1 and fixing the spraying equipment 100 at the designated position, thereby improving the stability and safety of the underground spray support material spraying equipment 100 according to the embodiment of the present invention during the spraying construction.

[0034] Specifically, there are four supporting oil cylinders 14 , and the four supporting oil cylinders 14 are located at the four corners of the crawler chassis 13 .

[0035] In some embodiments, the heating and insulation material box 2 includes a box body 21 and a mixer 22, the box body 21 is arranged on the installation platform 11, and the mixer 22 is arranged on the box body 21 to stir the thin spray material in the box body 21. During the construction process, before turning on the first pump 3, the mixer 22 is turned on, and the mixer 22 stirs the thin spray material in the box body 21 to improve the fluidity of the thin spray material and avoid the thin spray material from becoming sticky, thereby improving the smoothness of the flow path of the thin spray material from the box body 21 to the spray gun, and ensuring the spraying effect of the underground spray support material spraying equipment 100 of the embodiment of the present invention on the thin spray material.

[0036] Specifically, the hydraulic pump station 122 has a third output pipeline (not shown in the figure), and the vehicle body 1 further includes a third hydraulic valve 125. The mixer 22 includes a hydraulic motor and a mixing shaft (not shown in the figure), the hydraulic motor is arranged on the box body 21, the hydraulic motor is connected to the third output pipeline, the third output pipeline is provided with a third hydraulic valve 125, and the mixing shaft is arranged on the output shaft of the hydraulic motor. During the construction process, after the hydraulic pump station 122 is turned on, the third hydraulic valve 125 is operated to control the connection of the third output pipeline, thereby controlling the start of the hydraulic motor, so that the hydraulic motor drives the mixing shaft to mix the thin spray material in the box body 21. The mixer 22 adopts a hydraulic motor, which is convenient for connection through the drive control component 12 of the vehicle body 1, and is powered by the hydraulic pump station 122 and controlled by the third hydraulic valve 125 to start and stop.

[0037] Specifically, Figure 2As shown, the first hydraulic valve 123, the second hydraulic valve 124 and the third hydraulic valve 125 are arranged in parallel to form a hydraulic valve group, the hydraulic valve group is arranged at one end of the mounting platform 11 in the first direction, the hydraulic pump station 122 and the electric control box 121 are adjacent to the hydraulic valve group, the hydraulic pump station 122 and the electric control box 121 are arranged at intervals in the second direction, the second direction is perpendicular to the first direction, the second direction is parallel to the axial direction of the track wheel of the crawler chassis 13, the flushing tank 4 and the second pump 7 are opposite in the second direction, in the first direction, the heating and insulation tank 2 is located between the flushing tank 4 and the hydraulic pump station 122, and the first pump 3 is located between the second pump 7 and the electric control box 121. Among them, the first direction is the same as the front-to-back direction, and the second direction is the same as the left-to-right direction.

[0038] The hydraulic valve group is located at the front end of the installation platform 11, the hydraulic pump station 122 and the electric control box 121 are arranged at intervals on the left and right, the hydraulic pump station 122 is located on the rear side of the hydraulic valve group, the flushing material box 4 and the second pump 7 are arranged on the left and right, and the heating and insulation material box 2 is adjacent to the hydraulic pump station 122. In this arrangement, the hydraulic valve group and the heating and insulation material box 2 are close to the hydraulic pump station 122, so that the equipment layout on the installation platform 11 is compact, and it is convenient to set up the first output pipeline, the second output pipeline and the third output pipeline, optimize the arrangement path of the output pipeline, and help reduce the required area of ​​the installation platform 11, thereby helping to reduce the volume of the downhole spraying support material spraying equipment 100 of the embodiment of the present invention, and help to improve the miniaturization and passability of the downhole spraying support material spraying equipment 100 of the embodiment of the present invention.

[0039] Specifically, the underground spraying support material spraying equipment 100 of the present invention further includes a mounting frame 6, the first pump 3 and the second pump 7 are arranged on the mounting platform 11 through the mounting frame 6, the first pump 3 and the second pump 7 are spaced apart from the mounting platform 11, and the mounting frame 6 is connected to the flushing material box 4. The mounting frame 6 is arranged relying on the flushing material box 4, making full use of the large volume advantage of the flushing material box 4, and can ensure the stability of the mounting frame 6 supporting the first pump 3 and the second pump 7, and also facilitate the installation and arrangement of the pipelines of the first pump 3 and the second pump 7, thereby facilitating the improvement of the stability and safety of the underground spraying support material spraying equipment 100 of the embodiment of the present invention.

[0040] The spray gun valve group 52 has a first feed port, a second feed port and a discharge port. The spray gun assembly 5 further includes a first pipe 53, a second pipe 54 and a third pipe 55. The first pipe 53 connects the outlet of the first pump 3 and the first feed port, the second pipe 54 connects the outlet of the second pump 7 and the second feed port, and the third pipe 55 connects the discharge port and the inlet of the spray gun. During the construction process, the spray gun valve group 52 is operated to control the connection between the first pipe 53 and the third pipe 55, so that the first pump 3 is connected to the spray gun. After the spray gun is turned on, the spraying operation of the thin spray material can be carried out. After the spraying operation is completed, the first pump 3 is turned off, and the spray gun valve group 52 is operated to disconnect the first pipe 53 and the third pipe 55 and connect the second pipe 54 and the third pipe 55, so that the flushing liquid flows through the third pipe 55 and is discharged from the spray gun, so that the flushing liquid flushes the third pipe 55 and the spray gun.

[0041] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0046] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A downhole spraying support material spraying device (100), characterized in that: include: A vehicle body (1), the vehicle body (1) having a mounting platform (11); a heating and heat-insulating material box (2) and a first pump (3), wherein the heating and heat-insulating material box (2) and the first pump (3) are arranged on the mounting platform (11), the heating and heat-insulating material box (2) is used to store spraying materials, and the inlet of the first pump (3) is connected to the heating and heat-insulating material box (2); a flushing tank (4) and a second pump (7), wherein the flushing tank (4) and the second pump (7) are arranged on the mounting platform (11), the flushing tank (4) is used to store flushing liquid, and the inlet of the second pump (7) is connected to the flushing tank (4); and A spray gun assembly (5), the spray gun assembly (5) comprising a spray gun (51) and a spray gun valve group (52), the outlet of the first pump (3) and the outlet of the second pump (7) are both connected to the spray gun valve group (52), and the spray gun valve group (52) is connected to the spray gun.

2. The underground spraying support material spraying equipment (100) according to claim 1, characterized in that: The vehicle body (1) comprises a crawler chassis (13) and a drive control component (12), wherein the crawler chassis (13) has the mounting platform (11), the drive control component (12) is arranged on the mounting platform (11), and the drive control component (12) is connected to the crawler chassis (13).

3. The underground spraying support material spraying equipment (100) according to claim 2, characterized in that: The crawler chassis (13) is a hydraulically driven crawler chassis (13); the drive control component (12) comprises an electric control box (121), a hydraulic pump station (122) and a first hydraulic valve (123); the electric control box (121) is connected to the hydraulic pump station (122); the hydraulic pump station (122) has a first output pipeline; the first output pipeline is provided with the first hydraulic valve (123); and the first output pipeline is connected to the crawler chassis (13).

4. The underground spraying support material spraying equipment (100) according to claim 3, characterized in that: The hydraulic pump station (122) has a second output pipeline. The vehicle body (1) further comprises a supporting oil cylinder (14) and a second hydraulic valve (124). The supporting oil cylinder (14) has a plurality of supporting oil cylinders (14). The plurality of supporting oil cylinders (14) are arranged at intervals on the edge of the crawler chassis (13). The supporting oil cylinder (14) is connected to the second output pipeline. The second hydraulic valve (124) is arranged on the second output pipeline.

5. The underground spraying support material spraying equipment (100) according to claim 3, characterized in that: The heating and heat-insulating material box (2) comprises a box body (21) and a stirrer (22); the box body (21) is arranged on the mounting platform (11); and the stirrer (22) is arranged on the box body (21) to stir the spraying material in the box body (21).

6. The underground spraying support material spraying equipment (100) according to claim 5, characterized in that: The hydraulic pump station (122) has a third output pipeline, the vehicle body (1) further includes a third hydraulic valve (125), the mixer (22) includes a hydraulic motor and a mixing shaft, the hydraulic motor is arranged on the box body (21), the hydraulic motor is connected to the third output pipeline, the third output pipeline is provided with the third hydraulic valve (125), and the mixing shaft is arranged on the output shaft of the hydraulic motor.

7. The underground spraying support material spraying equipment (100) according to claim 3, characterized in that: The first hydraulic valve (123) is arranged at one end of the mounting platform (11) in a first direction, the hydraulic pump station (122) and the electric control box (121) are adjacent to the first hydraulic valve (123), the hydraulic pump station (122) and the electric control box (121) are arranged at intervals in a second direction, the second direction is perpendicular to the first direction, the second direction is parallel to the axial direction of the track wheel of the crawler chassis (13), the flushing tank (4) and the second pump (7) are opposite in the second direction, in the first direction, the heating and insulation tank (2) is located between the flushing tank (4) and the hydraulic pump station (122), and the first pump (3) is located between the second pump (7) and the electric control box (121).

8. The underground spraying support material spraying equipment (100) according to claim 7, characterized in that: It further comprises a mounting frame (6), wherein the first pump (3) and the second pump (7) are mounted on the mounting platform (11) via the mounting frame (6), and the mounting frame (6) is connected to the flushing material box (4).

9. The underground spraying support material spraying equipment (100) according to claim 1, characterized in that: The spray gun valve group (52) has a first feed port, a second feed port and a discharge port, and the spray gun assembly (5) further includes a first pipe (53), a second pipe (54) and a third pipe (55), the first pipe (53) connecting the outlet of the first pump (3) and the first feed port, the second pipe (54) connecting the outlet of the second pump (7) and the second feed port, and the third pipe (55) connecting the discharge port and the inlet of the spray gun (51).

10. A method for using a downhole spraying support material spraying device, characterized in that: According to the spraying equipment (100) according to any one of claims 1 to 9, the vehicle body (1) is operated to move to a specified position, the first pump (3) and the second pump (7) are turned on, the spray gun valve group (52) is operated to control the first pump (3) to be connected to the spray gun (51), the spray gun (51) is turned on to spray the spray material, and after the spraying operation is completed, the first pump (3) is turned off, the spray gun valve group (52) is operated to disconnect the first pump (3) and the spray gun (51) and connect the second pump (7) and the spray gun (51), and a flushing liquid flushing operation is performed, and then the second pump (7) and the spray gun (51) are turned off.

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