Fireproof grouting device for coal mine

Abstract

This utility model discloses a coal mine fireproof grouting device. The device includes a grouting nozzle, one end of which is detachably and fixedly connected to a connector. A rotating ring is rotatably connected to the inner wall of the connector. A communicating cavity is formed on one side of the rotating ring. A connecting pipe, one end of which communicates with the communicating cavity, is provided on the side wall of the connector. Multiple cleaning nozzles, communicating with the communicating cavity, are installed at the bottom end of the rotating ring. A driving assembly is provided at one end of the connector. A conveying pipe is fixed to the inner wall of the connector. A valve for controlling grouting is provided on the conveying pipe. The other end of the conveying pipe is connected to an external grout supply mechanism. A protective assembly is provided at one end of the nozzle nozzle. This utility model, by incorporating a rotating ring, a communicating cavity, and a driving assembly, allows the rotating ring to rotate during cleaning of the grouting nozzle, causing multiple cleaning nozzles to rotate within the nozzle for thorough cleaning. This results in good cleaning effect and high efficiency.

Description

Technical Field

[0001] This utility model relates to the field of coal mine fire prevention technology, and in particular to a coal mine fire prevention grouting device. Background Technology

[0002] During coal mining, the large exposed area of ​​coal and frequent contact with air make it prone to spontaneous combustion. Grouting devices can be used to spray or drill grout into the working face during mining to keep the coal moist, reduce its temperature, inhibit oxidation, and prevent fires.

[0003] A search revealed a Chinese patent publication number CN222184825U, which discloses a coal mine fireproof grouting device, including a grouting nozzle. The inner wall of the top of the grouting nozzle has a circular groove, and a circular liquid supply pipe is fixedly installed inside the circular groove. Multiple L-shaped nozzles are installed on the inner wall of the circular liquid supply pipe. This patent allows the inner wall of the grouting nozzle to be rinsed after use through multiple L-shaped nozzles, thus minimizing the adhesion of grout to the inner wall of the grouting nozzle and affecting subsequent use.

[0004] However, its nozzle spraying position is limited, and there are blind spots in the grouting nozzle, which affects the cleaning effect on the grouting nozzle. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a coal mine fire prevention grouting device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A coal mine fireproof grouting device includes a grouting nozzle, one end of which is detachably and fixedly connected to a connector. A rotating ring is rotatably connected to the inner wall of the connector. A communicating cavity is opened on one side of the rotating ring. A connecting pipe with one end communicating with the communicating cavity is provided on the side wall of the connector. Multiple cleaning nozzles communicating with the communicating cavity are installed at the bottom end of the rotating ring. A drive assembly is provided at one end of the connector.

[0008] As a further improvement of this utility model: a conveying pipe is fixed to the inner wall of the connector, a valve for controlling grouting is provided on the conveying pipe, and the other end of the conveying pipe is connected to an external grouting mechanism.

[0009] As a further embodiment of this utility model: a plurality of the cleaning nozzles are arranged in a circumferential array, with one end of the cleaning nozzle located in the grouting nozzle and facing the inner wall of the grouting nozzle.

[0010] As a further embodiment of this utility model: the drive assembly includes a connecting frame and a sun gear. The connecting frame is fixedly connected to the top of the rotating ring, and a transmission cavity is opened at the end of the connecting head away from the grouting nozzle. The sun gear is fixedly connected to the outer wall of the end of the connecting frame located in the transmission cavity.

[0011] As a further embodiment of this utility model: the top outer wall of the connector is damped and rotated with a drive ring located outside the transmission cavity, and a toothed ring is fixedly connected to the inner wall of the drive ring.

[0012] As a further improvement of this utility model: multiple planetary gears are rotatably connected to the inner wall of the transmission cavity, and the planetary gears mesh with the gear ring and the sun gear.

[0013] As a further embodiment of this utility model: a protective component is provided at one end of the grouting nozzle nozzle. The protective component includes a protective cover and a connecting ring. The protective cover is sleeved on the outer wall of the grouting nozzle. The connecting ring is fixedly connected to the outer wall of one end of the grouting nozzle. One end of the protective cover is inserted into the connecting ring. A magnet is fixed on the inner wall of the connecting ring. A metal ring that magnetically engages with the magnet is fixed at one end of the protective cover.

[0014] Compared with the prior art, this utility model provides a coal mine fireproof grouting device, which has the following beneficial effects:

[0015] 1. This utility model, by providing a rotating ring, a connecting cavity, and a driving component, can drive the rotating ring to rotate during the cleaning of the grouting nozzle, causing multiple cleaning nozzles to rotate within the grouting nozzle, thus performing comprehensive cleaning of the grouting nozzle, resulting in good cleaning effect and high efficiency.

[0016] 2. This utility model, by providing a driving component, allows the user to drive the driving ring to rotate at a certain angle, thus making the rotating ring rotate one revolution, which is convenient for the user to operate and improves cleaning efficiency.

[0017] 3. This utility model, by providing a protective component, isolates the nozzle of the grouting nozzle from the external environment after use, preventing the nozzle from being contaminated with dust or foreign objects and becoming clogged.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a coal mine fire prevention grouting device proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of a coal mine fireproof grouting device proposed in this utility model;

[0021] Figure 3This is a cross-sectional structural diagram of a coal mine fireproof grouting device proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the protective cover and the grouting nozzle of a coal mine fireproof grouting device proposed in this utility model.

[0023] In the diagram: 1. Grouting nozzle; 2. Delivery pipe; 3. Connector; 4. Valve; 5. Rotating ring; 6. Connecting cavity; 7. Cleaning nozzle; 8. Connecting frame; 9. Sun gear; 10. Transmission cavity; 11. Planetary gear; 12. Gear ring; 13. Drive ring; 14. Connecting pipe; 15. Protective cover; 16. Connecting ring; 17. Magnet; 18. Metal ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0026] Example 1

[0027] A coal mine fireproof grouting device, such as Figures 1 to 3 As shown, the device includes a grouting nozzle 1. One end of the grouting nozzle 1 is detachably and fixedly connected to a connector 3. A delivery pipe 2 is fixed to the inner wall of the connector 3. A valve 4 for controlling grouting is provided on the delivery pipe 2. The other end of the delivery pipe 2 is connected to an external grouting supply mechanism. The grouting supply mechanism is a mature existing technology, so it will not be described in detail here. A rotating ring 5 is rotatably connected to the inner wall of the connector 3. A connecting cavity 6 is opened on one side of the rotating ring 5. A connecting pipe 14 with one end connected to the connecting cavity 6 is provided on the side wall of the connector 3. Multiple cleaning nozzles 7 connected to the connecting cavity 6 are installed at the bottom of the rotating ring 5. The multiple cleaning nozzles 7 are arranged in a circumferential array. One end of the cleaning nozzle 7 is located in the grouting nozzle 1 and faces the inner wall of the grouting nozzle 1.

[0028] One end of the connector 3 is provided with a drive assembly, which includes a connecting frame 8 and a sun gear 9. The connecting frame 8 is fixedly connected to the top of the rotating ring 5. The end of the connector 3 away from the grouting nozzle 1 has a transmission cavity 10. The sun gear 9 is fixedly connected to the outer wall of the connecting frame 8 located in the transmission cavity 10. The top outer wall of the connector 3 is damped and rotatably engaged with a drive ring 13 located outside the transmission cavity 10. A gear ring 12 is fixedly connected to the inner wall of the drive ring 13. Multiple planetary gears 11 are rotatably connected to the inner wall of the transmission cavity 10. The planetary gears 11 are engaged with the gear ring 12 and the sun gear 9.

[0029] During use, the amount of slurry entering the delivery pipe 2 is controlled by valve 4. After use, the connecting chamber 6 is connected to an external water source through connecting pipe 14. The external water source enters the connecting chamber 6 through connecting pipe 14 and is then sprayed into the grouting nozzle 1 through cleaning nozzle 7. At the same time, the user manually rotates the drive ring 13, which drives the connecting frame 8 to rotate through the transmission of gear ring 12, planetary gear 11 and sun gear 9. The connecting frame 8 drives the rotating ring 5 to rotate, causing multiple cleaning nozzles 7 to rotate in the grouting nozzle 1 for comprehensive cleaning. The transmission of gear ring 12, planetary gear 11 and sun gear 9 can increase the rotation speed of the rotating ring 5, so that the user can drive the drive ring 13 to rotate a certain angle to make the rotating ring 5 rotate one revolution, which is convenient for the user and improves the cleaning efficiency.

[0030] By incorporating a rotating ring 5, a connecting cavity 6, and a drive assembly, the rotating ring 5 can be driven to rotate during the cleaning of the grouting nozzle 1, causing multiple cleaning nozzles 7 to rotate within the grouting nozzle 1 for comprehensive cleaning. This results in a good cleaning effect and high efficiency.

[0031] With the addition of a drive component, the user can drive the drive ring 13 to rotate a certain angle, which will cause the rotating ring 5 to rotate one revolution, making it easy for the user to operate and improving cleaning efficiency.

[0032] Example 2

[0033] A coal mine fireproof grouting device, this embodiment is based on embodiment 1, with the following improvements, such as... Figure 1 , Figure 4 As shown, a protective component is provided at one end of the nozzle of the grouting nozzle 1. The protective component includes a protective cover 15 and a connecting ring 16. The protective cover 15 is sleeved on the outer wall of the grouting nozzle 1. The connecting ring 16 is fixedly connected to the outer wall of one end of the grouting nozzle 1. One end of the protective cover 15 is inserted into the connecting ring 16. A magnet 17 is fixed on the inner wall of the connecting ring 16. A metal ring 18 that magnetically engages with the magnet 17 is fixed at one end of the protective cover 15.

[0034] After use, insert the protective cover 15 into the connecting ring 16, and the magnet 17 and the metal ring 18 magnetically fix the protective cover 15. The protective cover 15 isolates the nozzle of the grouting nozzle 1 from the external environment, preventing the nozzle of the grouting nozzle 1 from being contaminated by dust or foreign objects and blocked.

[0035] By incorporating protective components, the nozzle of the grouting nozzle 1 is isolated from the external environment after use, preventing dust or foreign objects from clogging the nozzle.

[0036] Working principle: During use, the amount of slurry entering the delivery pipe 2 is controlled by valve 4. After use, the connecting chamber 6 is connected to an external water source through connecting pipe 14. The external water source enters the connecting chamber 6 through connecting pipe 14 and is then sprayed into the grouting nozzle 1 through cleaning nozzle 7. At the same time, the user manually rotates the drive ring 13, which drives the connecting frame 8 to rotate through the transmission of gear ring 12, planetary gear 11 and sun gear 9. The connecting frame 8 drives the rotating ring 5 to rotate, causing multiple cleaning nozzles 7 to rotate in the grouting nozzle 1 for comprehensive cleaning. The transmission of gear ring 12, planetary gear 11 and sun gear 9 can increase the rotation speed of the rotating ring 5, so that the user can drive the drive ring 13 to rotate a certain angle to make the rotating ring 5 rotate one revolution, which is convenient for the user and improves the cleaning efficiency. Then, the protective cover 15 is inserted into the connecting ring 16, and the magnet 17 and the metal ring 18 magnetically fix the protective cover 15. The protective cover 15 isolates the nozzle of the grouting nozzle 1 from the external environment, preventing the nozzle of the grouting nozzle 1 from being contaminated by dust or foreign objects and blocked.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A coal mine fire prevention grouting device, comprising a grouting nozzle (1), characterized in that, One end of the grouting nozzle (1) is detachably fixedly connected to a connector (3). A rotating ring (5) is rotatably connected to the inner wall of the connector (3). A connecting cavity (6) is opened on one side of the rotating ring (5). A connecting pipe (14) is provided on the side wall of the connector (3) with one end connected to the connecting cavity (6). Multiple cleaning nozzles (7) connected to the connecting cavity (6) are installed at the bottom end of the rotating ring (5). A drive assembly is provided at one end of the connector (3).

2. The coal mine fireproof grouting device according to claim 1, characterized in that, The inner wall of the connector (3) is fixed with a conveying pipe (2), and a valve (4) for controlling grouting is provided on the conveying pipe (2). The other end of the conveying pipe (2) is connected to an external grouting mechanism.

3. The coal mine fireproof grouting device according to claim 1, characterized in that, Multiple cleaning nozzles (7) are arranged in a circumferential array, with one end of each cleaning nozzle (7) located in the grouting nozzle (1) and facing the inner wall of the grouting nozzle (1).

4. A coal mine fire-prevention grouting device according to claim 1, characterized in that, The drive assembly includes a connecting frame (8) and a sun gear (9). The connecting frame (8) is fixedly connected to the top of the rotating ring (5). The connecting head (3) has a transmission cavity (10) at the end away from the grouting nozzle (1). The sun gear (9) is fixedly connected to the outer wall of the connecting frame (8) located in the transmission cavity (10).

5. A coal mine fireproof grouting device according to claim 4, characterized in that, The top outer wall of the connector (3) is damped and rotated with a drive ring (13) located outside the transmission cavity (10), and a toothed ring (12) is fixedly connected to the inner wall of the drive ring (13).

6. A coal mine fireproof grouting device according to claim 5, characterized in that, The inner wall of the transmission cavity (10) is rotatably connected to multiple planetary gears (11), which mesh with the gear ring (12) and the sun gear (9).

7. A coal mine fireproof grouting device according to claim 1, characterized in that, The grouting nozzle (1) has a protective component at one end of its nozzle. The protective component includes a protective cover (15) and a connecting ring (16). The protective cover (15) is fitted onto the outer wall of the grouting nozzle (1). The connecting ring (16) is fixedly connected to the outer wall of one end of the grouting nozzle (1). One end of the protective cover (15) is inserted into the connecting ring (16). A magnet (17) is fixed on the inner wall of the connecting ring (16). A metal ring (18) that magnetically attracts the magnet (17) is fixed on one end of the protective cover (15).

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