Fire preventing and extinguishing grouting device for coal mine

Abstract

The utility model provides a coal mine fire preventing and extinguishing grouting device, and relates to the technical field of grouting equipment, the coal mine fire preventing and extinguishing grouting device comprises a box body and a cover body, a stirring assembly is arranged in the box body, the cover body is arranged at the top of the box body, and a cleaning assembly and a driving assembly are arranged on the cover body; the driving assembly is used for driving the cleaning assembly to move into the box body; according to the device, by arranging the cleaning assembly, the cleaning effect can be effectively improved, the phenomenon that a large amount of slurry is left, adheres to and is solidified in the box body to affect next use is avoided, manual cleaning in the box is not needed, the operation safety and efficiency are improved, and the downtime of equipment is shortened; the device integrates multiple functions of stirring, grouting and cleaning, external equipment is reduced, and the space utilization rate is optimized; according to the device, after the cleaning operation is completed, the cleaning assembly is moved out of the box body, so that blockage of the cleaning assembly caused by splashing and attaching of slurry during next stirring can be prevented, and normal operation of the cleaning assembly is ensured.

Description

Technical Field

[0001] This application relates to the field of grouting equipment technology, and more specifically, to a coal mine fire prevention and extinguishing grouting device. Background Technology

[0002] Coal mine fire prevention and extinguishing grouting devices are mainly used in underground coal mine working faces and mining areas where there is a risk of spontaneous combustion of coal. They can spray mud, fly ash slurry, lime slurry, and chemical coagulant (or more viscous liquids and concentrates containing organic impurities and solid particles) with water as the transport medium. They effectively absorb the heat of oxidized coal, prevent coal oxidation, and block air leakage channels, thereby achieving fire prevention and extinguishing.

[0003] Existing coal mine fire prevention and extinguishing grouting devices lack integrated, efficient self-cleaning systems. After grouting operations are completed, residual grout easily forms a hardened scale layer on the inner wall of the tank. Such residues not only cause effective volume loss but also change the accuracy of grout ratio. Furthermore, manual cleaning is time-consuming and labor-intensive, affecting the equipment reuse efficiency and fire extinguishing response speed. Summary of the Invention

[0004] The purpose of this application is to provide a coal mine fire prevention and extinguishing grouting device, which can solve the technical problems of existing coal mine fire prevention and extinguishing grouting devices lacking a self-cleaning system, causing grout to scale on the inner wall of the tank after operation, resulting in volume loss, proportion deviation, and time-consuming and labor-intensive manual cleaning, thus affecting the efficiency of use.

[0005] This application provides a coal mine fire prevention and extinguishing grouting device, including a box and a cover. A stirring component is provided inside the box, and the cover is located on the top of the box. A cleaning component and a driving component are provided on the cover. The driving component is used to drive the cleaning component to move in and out of the box.

[0006] The cleaning assembly includes a first water pipe and a first cleaning nozzle. The first water pipe is movably disposed above the cover. The driving assembly is used to drive the first water pipe to move up and down. The first cleaning nozzle is disposed below the first water pipe, and a second water pipe is provided between the first cleaning nozzle and the first water pipe. A first through hole is provided through the cover, through which the first cleaning nozzle can pass and move into the housing. A water inlet pipe is provided on the first water pipe.

[0007] The cleaning assembly further includes a second cleaning nozzle, which is connected to the second water pipe. The water outlet of the first cleaning nozzle is positioned downwards, and the water outlet of the second cleaning nozzle is positioned upwards at an angle.

[0008] The first cleaning nozzle is provided in multiple ways, and the multiple first cleaning nozzles are evenly distributed. The number of first through holes is the same as the number of first cleaning nozzles.

[0009] The drive assembly includes a first motor, a mounting bracket, a screw, a screw sleeve, a sliding rod, and a sliding sleeve. The mounting bracket and the sliding rod are fixedly mounted on the cover. The screw is rotatably mounted on the cover via a bearing. The first motor is fixedly mounted on the mounting bracket, and the output shaft of the first motor is connected to the screw. The screw sleeve and the sliding sleeve are both fixedly mounted on the first water pipe. The screw sleeve is threaded onto the screw, and the sliding sleeve is slidably mounted on the sliding rod.

[0010] The cover body is equipped with an opening and closing assembly, which includes a baffle, a gear ring, a gear, and a second motor. The cover body has an installation groove, the inner wall of which has an annular sliding groove. The baffle is located within the installation groove, and a slider is fixedly mounted on the baffle. The slider is slidably connected to the annular sliding groove. A second through hole is formed through the baffle, allowing the baffle to rotate to close or open the first through hole. The gear ring is fixedly sleeved on the baffle. The gear is rotatably mounted in the installation groove via a bearing and meshes with the gear ring. The second motor is fixedly mounted on the cover body, and its output shaft is connected to the gear.

[0011] The stirring assembly includes a third motor, a rotating rod, and a stirring rod. The rotating rod rotates through the cover via a bearing. The third motor is fixedly mounted on the cover, and its output shaft is connected to the rotating rod. The stirring rod is located inside the housing and is fixedly connected to the rotating rod.

[0012] The box is equipped with a scraper, and a connecting rod is fixed between the scraper and the rotating rod. The vertical part of the scraper is in contact with the inner side wall of the box, and the horizontal part of the scraper is in contact with the inner bottom wall of the box.

[0013] The side of the box is connected to a feed pipe with a valve, a discharge pipe with a valve, and a drain pipe with a valve. A grouting pump is installed on the discharge pipe, and the output end of the grouting pump is connected to a grouting nozzle through a pipe.

[0014] The lower end of the housing is provided with a base, and the lower end of the base is provided with casters with locking components.

[0015] The beneficial effects of this utility model are:

[0016] This utility model provides a coal mine fire prevention and extinguishing grouting device. After the grouting operation is completed, a driving component moves a cleaning component into the tank, and then the cleaning component cleans the inside of the tank. After the cleaning operation is completed, the driving component moves the cleaning component out of the tank. This device, by setting up a cleaning component, can effectively improve the cleaning effect and avoid the phenomenon that a large amount of grout residue adheres and solidifies inside the tank, affecting the next use. Moreover, it eliminates the need for manual cleaning inside the tank, improving operational safety and efficiency, and shortening equipment downtime. This device integrates mixing, grouting, and cleaning functions, reducing external equipment and optimizing space utilization. After the cleaning operation is completed, the device can move the cleaning component out of the tank to prevent grout from splashing and adhering during the next mixing, thus preventing clogging of the cleaning component and ensuring its normal operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a sectional view of the overall main view structure in some embodiments of this application;

[0019] Figure 2 This is a cross-sectional view of the main structure of the cover in some embodiments of this application;

[0020] Figure 3 This is a schematic diagram of the top view of the cover structure in some embodiments of this application;

[0021] Figure 4 This is a schematic diagram of the baffle structure viewed from below in some embodiments of this application;

[0022] Figure 5 This is a schematic diagram of the cover structure viewed from below in some embodiments of this application.

[0023] The reference numerals in the attached figures are as follows:

[0024] 1. Housing; 11. Scraper; 12. Connecting rod; 13. Feed pipe; 14. Discharge pipe; 15. Sewage pipe; 16. Grouting pump; 17. Grouting nozzle; 18. Base; 19. Casters;

[0025] 2. Cover body; 21. First through hole; 22. Mounting groove; 23. Annular sliding groove;

[0026] 3. Stirring assembly; 31. Third motor; 32. Rotary rod; 33. Stirring rod;

[0027] 4. Cleaning components; 41. First water pipe; 42. First cleaning nozzle; 43. Second water pipe; 44. Inlet water pipe; 45. Second cleaning nozzle;

[0028] 5. Drive assembly; 51. First motor; 52. Mounting bracket; 53. Screw; 54. Screw sleeve; 55. Slide rod; 56. Slide sleeve;

[0029] 6. Opening and closing assembly; 61. Baffle; 62. Gear ring; 63. Gear; 64. Second motor; 65. Slider; 66. Second through hole. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] like Figures 1 to 5 As shown in the figure, this application provides a coal mine fire prevention and extinguishing grouting device, including a box body 1 and a cover body 2. A stirring component 3 is provided inside the box body 1. The cover body 2 is located on the top of the box body 1, and a cleaning component 4 and a driving component 5 are provided on the cover body 2. The driving component 5 is used to drive the cleaning component 4 to move in and out of the box body 1.

[0037] The present invention provides a coal mine fire prevention and extinguishing grouting device. After the grouting operation is completed, the driving component 5 drives the cleaning component 4 to move into the box 1, and then the cleaning component 4 cleans the inside of the box 1. After the cleaning operation is completed, the driving component 5 drives the cleaning component 4 to move out of the box 1.

[0038] This device, by incorporating a cleaning component 4, effectively enhances the cleaning process, preventing excessive residue from adhering to and solidifying inside the tank 1, which could affect future use. Furthermore, it eliminates the need for manual cleaning, improving operational safety and efficiency, and reducing equipment downtime. The device integrates mixing, grouting, and cleaning functions, reducing the need for external equipment and optimizing space utilization. After cleaning, the cleaning component 4 can be moved outside the tank 1, preventing grout splashing and clogging during subsequent mixing and ensuring its normal operation.

[0039] like Figures 1 to 5 As shown, in this embodiment, the cleaning component 4 includes a first water pipe 41 and a first cleaning nozzle 42. The first water pipe 41 is movably disposed above the cover 2. The driving component 5 is used to drive the first water pipe 41 to move up and down. The first cleaning nozzle 42 is disposed below the first water pipe 41, and a second water pipe 43 is provided between the first cleaning nozzle 42 and the first water pipe 41. A first through hole 21 is provided through the cover 2, through which the first cleaning nozzle 42 can pass and move into the housing 1. A water inlet pipe 44 is provided on the first water pipe 41.

[0040] When in use, the water inlet pipe 44 is connected to an external water pump. Water flows through the water inlet pipe 44 into the first water pipe 41 and the second water pipe 43, and then sprays out from the first cleaning nozzle 42 to spray and clean the inside of the tank 1.

[0041] like Figures 1 to 5 As shown, in this embodiment, the cleaning assembly 4 further includes a second cleaning nozzle 45, which is connected to the second water pipe 43. The water outlet end of the first cleaning nozzle 42 is set downwards, and the water outlet end of the second cleaning nozzle 45 is set inclined upwards.

[0042] During use, water flows through the inlet pipe 44 into the first water pipe 41 and the second water pipe 43, and then sprays out from the first cleaning nozzle 42 and the second cleaning nozzle 45. The first cleaning nozzle 42 sprays downward to mainly clean the bottom wall and lower side wall of the cleaning chamber 1, while the second cleaning nozzle 45 sprays upward at an angle to mainly clean the top wall and upper side wall of the cleaning chamber 1, which can improve the cleaning coverage and reduce cleaning dead corners.

[0043] like Figures 1 to 5 As shown, in this embodiment, multiple first cleaning nozzles 42 are provided, and the multiple first cleaning nozzles 42 are evenly distributed. The number of first through holes 21 is the same as the number of first cleaning nozzles 42.

[0044] Multiple first cleaning nozzles 42 working together can improve cleaning efficiency and further reduce cleaning dead spots.

[0045] like Figures 1 to 5 As shown, in this embodiment, the drive assembly 5 includes a first motor 51, a mounting bracket 52, a screw 53, a screw sleeve 54, a slide rod 55, and a slide sleeve 56. The mounting bracket 52 and the slide rod 55 are fixedly mounted on the cover 2. The screw 53 is rotatably mounted on the cover 2 via a bearing. The first motor 51 is fixedly mounted on the mounting bracket 52, and the output shaft of the first motor 51 is connected to the screw 53. The screw sleeve 54 and the slide sleeve 56 are both fixedly mounted on the first water pipe 41. The screw sleeve 54 is threaded onto the screw 53, and the slide sleeve 56 is slidably mounted onto the slide rod 55.

[0046] In use, the first motor 51 is turned on to drive the screw 53 to rotate. The screw 53 drives the screw sleeve 54 to move down. The first water pipe 41 moves down with the screw sleeve 54 until it abuts against the top of the cover 2. At this time, the first water pipe 41 seals the first through hole 21, which can effectively prevent water from splashing to the outside from the first through hole 21 during cleaning. The second water outlet pipe and the first cleaning nozzle 42 move down with the first water pipe 41 and enter the housing 1. The sliding sleeve 56 and the sliding rod 55 work together to guide and limit the first water pipe 41. The first water pipe 41 is arranged in a ring to prevent the first water pipe 41 from interfering with the third motor 31 when it moves down.

[0047] like Figures 1 to 5As shown, in this embodiment, an opening and closing assembly 6 is provided inside the cover 2. The opening and closing assembly 6 includes a baffle 61, a gear ring 62, a gear 63, and a second motor 64. An installation groove 22 is provided inside the cover 2, and an annular sliding groove 23 is provided on the inner wall of the installation groove 22. The baffle 61 is located inside the installation groove 22, and a slider 65 is fixedly provided on the baffle 61. The slider 65 is slidably connected to the annular sliding groove 23. A second through hole 66 is provided through the baffle 61. The baffle 61 can be rotated to close or open the first through hole 21. The gear ring 62 is fixedly sleeved on the baffle 61. The gear 63 is rotatably provided in the installation groove 22 through a bearing, and the gear 63 meshes with the gear ring 62. The second motor 64 is fixedly provided on the cover 2, and the output shaft of the second motor 64 is connected to the gear 63.

[0048] In use, the second motor 64 is turned on to drive the gear 63 to rotate, which in turn drives the gear ring 62 to rotate. The baffle 61 rotates with the gear ring 62 until the second through hole 66 of the baffle 61 coincides with the first through hole 21 of the housing. At this time, the baffle 61 opens the first through hole 21, and then the cleaning component 4 can be lowered to perform the cleaning operation. After the cleaning operation is completed, the cleaning component 4 is moved to the outside of the housing 1 by the drive component 5. Then the baffle 61 is rotated so that the second through hole 66 of the baffle 61 is offset from the first through hole 21 of the housing until the baffle 61 closes the first through hole 21. By setting the opening and closing component 6, the device can close the first through hole 21 after the cleaning operation is completed, which can prevent the slurry from splashing to the outside during the next stirring. The cooperation between the slider 65 and the annular groove 23 guides and limits the baffle 61. The baffle 61 is arranged in an annular shape to prevent the baffle 61 from interfering with the rotating rod 32.

[0049] like Figures 1 to 5 As shown, in this embodiment, the stirring assembly 3 includes a third motor 31, a rotating rod 32, and a stirring rod 33. The rotating rod 32 rotates through the cover 2 via a bearing. The third motor 31 is fixedly mounted on the cover 2, and the output shaft of the third motor 31 is connected to the rotating rod 32. The stirring rod 33 is located inside the housing 1 and is fixedly connected to the rotating rod 32.

[0050] When in use, the third motor 31 is turned on to drive the rotating rod 32 to rotate. The stirring rod 33 rotates with the rotating rod 32 to stir and mix the slurry in the tank 1 and prevent sedimentation.

[0051] like Figure 1 As shown, in this embodiment, a scraper 11 is provided inside the box 1, and a connecting rod 12 is fixedly provided between the scraper 11 and the rotating rod 32. The vertical part of the scraper 11 is in contact with the inner side wall of the box 1, and the horizontal part of the scraper 11 is in contact with the inner bottom wall of the box 1.

[0052] During the cleaning operation, the third motor 31 is turned on to drive the rotating rod 32 to rotate. The connecting rod 12 and the scraper 11 rotate with the rotating rod 32. The scraper 11 scrapes the inner side wall and inner bottom wall of the box 1. The scraping of the scraper 11 and the spray cleaning work together to effectively improve the cleaning effect.

[0053] like Figure 1 As shown, in this embodiment, the side of the box 1 is connected to a feed pipe 13 with a valve, a discharge pipe 14 with a valve, and a drain pipe 15 with a valve. A grouting pump 16 is installed on the discharge pipe 14, and the output end of the grouting pump 16 is connected to a grouting nozzle 17 through a pipe.

[0054] When in use, the slurry is added into the tank 1 through the feed pipe 13 and discharged from the discharge pipe 14. The grouting pump 16 is turned on to deliver the slurry to the grouting nozzle 17. Grouting operation can be carried out using the grouting nozzle 17. The wastewater after cleaning is discharged from the drain pipe 15.

[0055] like Figure 1 As shown, in this embodiment, the lower end of the housing 1 is provided with a base 18, and the lower end of the base 18 is provided with a caster wheel 19 with a locking component; the caster wheel 19 supports the device to move flexibly and be fixed in the roadway, and can be quickly deployed to different work points to shorten the fire extinguishing response time.

[0056] Working principle: The coal mine fire prevention and extinguishing grouting device provided in this application, during the grouting operation, the grout is added into the box 1 through the feed pipe 13, and then the third motor 31 is turned on to drive the rotating rod 32 to rotate. The stirring rod 33 rotates with the rotating rod 32 to stir and mix the grout in the box 1 and prevent sedimentation. The grout is discharged from the discharge pipe 14, and the grouting pump 16 is turned on to transport the grout to the grouting nozzle 17. The grouting operation can be carried out by using the grouting nozzle 17.

[0057] After the grouting operation is completed, the second motor 64 is turned on to drive the gear 63 to rotate. The gear 63 drives the gear ring 62 to rotate, and the baffle 61 rotates with the gear ring 62 until the second through hole 66 of the baffle 61 coincides with the first through hole 21 of the housing. At this time, the baffle 61 opens the first through hole 21. Then, the first motor 51 is turned on to drive the screw 53 to rotate. The screw 53 drives the screw sleeve 54 to move down. The first water pipe 41 moves down with the screw sleeve 54 until it abuts against the top of the cover 2. The second water outlet pipe and the first cleaning nozzle 42 move down with the first water pipe 41 and enter the housing 1. Then, the water inlet pipe 44 is connected to the external water pump. Water flows through the water inlet pipe 44 into the first water pipe 41 and the second water pipe 43, and then from the first... Cleaning nozzles 42 and 45 spray out. The first cleaning nozzle 42 sprays downward to mainly clean the bottom and lower side walls of the housing 1, while the second cleaning nozzle 45 sprays upward at an angle to mainly clean the top and upper side walls of the housing 1. At the same time, the third motor 31 is turned on to drive the rotating rod 32 to rotate. The connecting rod 12 and the scraper 11 rotate with the rotating rod 32. The scraper 11 scrapes the inner side walls and inner bottom walls of the housing 1. The wastewater after cleaning is discharged from the drain pipe 15. After the cleaning operation is completed, the cleaning component 4 is moved to the outside of the housing 1 by the drive component 5. Then, the baffle 61 is rotated so that the second through hole 66 of the baffle 61 is offset from the first through hole 21 of the housing until the baffle 61 closes the first through hole 21.

[0058] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A coal mine fire prevention and extinguishing grouting device, characterized in that: The utility model provides a kind of cleaning device for food mixing machine, including box (1) and cover (2), the box (1) is provided with stirring assembly (3) inside, the cover (2) is set on the top of the box (1), and the cover (2) is provided with cleaning assembly (4) and drive assembly (5), the drive assembly (5) is used to drive the cleaning assembly (4) moves to enter and exit the box (1); The cleaning assembly (4) includes a first water pipe (41) and a first cleaning nozzle (42), the first water pipe (41) is movably arranged above the cover (2), the drive assembly (5) is used to drive the first water pipe (41) to move up and down, the first cleaning nozzle (42) is arranged below the first water pipe (41), and a second water pipe (43) is arranged in communication between the first cleaning nozzle (42) and the first water pipe (41), a first through hole (21) is formed through the cover (2), the first cleaning nozzle (42) can pass through the first through hole (21) and move into the box (1), and a water inlet pipe (44) is arranged in communication on the first water pipe (41).

2. The coal mine fire prevention and extinguishing grouting device according to claim 1, characterized in that: The cleaning assembly (4) further includes a second cleaning nozzle (45), which is arranged in communication on the second water pipe (43), the water outlet end of the first cleaning nozzle (42) is arranged downward, and the water outlet end of the second cleaning nozzle (45) is arranged upwardly inclined.

3. The coal mine fire prevention and extinguishing grouting device according to claim 1, characterized in that: The first cleaning nozzle (42) is provided with a plurality of first cleaning nozzles (42), and the first cleaning nozzles (42) are uniformly distributed, the number of the first through holes (21) is the same as the number of the first cleaning nozzles (42).

4. The coal mine fire prevention and extinguishing grouting device according to claim 1, characterized in that: The drive assembly (5) includes a first motor (51), a mounting bracket (52), a screw rod (53), a screw sleeve (54), a sliding rod (55), and a sliding sleeve (56), the mounting bracket (52) and the sliding rod (55) are fixedly arranged on the cover (2), the screw rod (53) is rotatably arranged on the cover (2) through a bearing, the first motor (51) is fixedly arranged on the mounting bracket (52), and the output shaft of the first motor (51) is connected with the screw rod (53), the screw sleeve (54) and the sliding sleeve (56) are fixedly arranged on the first water pipe (41), the screw sleeve (54) is threadedly sleeved on the screw rod (53), and the sliding sleeve (56) is slidably sleeved on the sliding rod (55).

5. The coal mine fire prevention and extinguishing grouting device according to claim 1, characterized in that: The cover (2) is provided with an opening and closing assembly (6), the opening and closing assembly (6) comprises a baffle (61), a gear ring (62), a gear (63) and a second motor (64), the cover (2) is provided with a mounting groove (22), the inner wall of the mounting groove (22) is provided with an annular sliding groove (23), the baffle (61) is located in the mounting groove (22), and the baffle (61) is fixedly provided with a sliding block (65), the sliding block (65) is limitingly and slidably connected with the annular sliding groove (23), a second through hole (66) is formed in the baffle (61), the baffle (61) can be rotated to close or open the first through hole (21), the gear ring (62) is fixedly sleeved on the baffle (61), the gear (63) is rotatably arranged in the mounting groove (22) through a bearing, and the gear (63) is engaged with the gear ring (62), and the second motor (64) is fixedly arranged on the cover (2), and the output shaft of the second motor (64) is connected with the gear (63).

6. The coal mine fire prevention and extinguishing grouting device according to claim 1, characterized in that: The stirring assembly (3) comprises a third motor (31), a rotating rod (32) and a stirring rod (33), the rotating rod (32) is rotatably arranged through the cover (2), the third motor (31) is fixedly arranged on the cover (2), and the output shaft of the third motor (31) is connected with the rotating rod (32), and the stirring rod (33) is located in the box body (1) and is fixedly connected with the rotating rod (32).

7. The coal mine fire prevention and extinguishing grouting device according to claim 6, characterized in that: The box body (1) is provided with a scraper (11), a connecting rod (12) is fixedly arranged between the scraper (11) and the rotating rod (32), the vertical part of the scraper (11) is attached to the inner side wall of the box body (1), and the horizontal part of the scraper (11) is attached to the inner bottom wall of the box body (1).

8. The coal mine fire prevention and extinguishing grouting device according to claim 1, characterized in that: The side of the box body (1) is communicated with a feeding pipe (13) with a valve, a discharging pipe (14) with a valve and a blowdown pipe (15) with a valve, the discharging pipe (14) is provided with a grouting pump (16), and the output end of the grouting pump (16) is externally connected with a grouting nozzle (17) through a pipeline.

9. The coal mine fire prevention and extinguishing grouting device according to claim 1, characterized in that: The lower end of the box body (1) is provided with a base (18), and the lower end of the base (18) is provided with a universal wheel (19) with a locking assembly.

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