Fireproof cooling spraying device for small coal pillar

By designing a fire prevention and cooling spray device for small coal pillars, and utilizing atomized spraying and thermal imaging sensors for detection, the problem of spontaneous combustion caused by the difficulty in dissipating heat in small coal pillar areas has been solved, achieving rapid cooling and timely handling, thus improving coal mine safety.

CN224039839UActive Publication Date: 2026-03-27JINSHA MINING TECHNOLOGY (CHONGQING) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-20
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

The heat in the small coal pillar area is difficult to dissipate quickly, causing the temperature to rise and easily triggering spontaneous combustion, which is difficult to detect.

Method used

A fire prevention and cooling spraying device for small coal pillars was designed, including a mobile trolley, an atomizing cooling spray nozzle, a thermal imaging sensor, and a control processing module. The device uses a drive motor to drive a transmission shaft and gear transmission, and an electric telescopic rod to adjust the spraying angle. It uses atomizing spraying to cool the coal, and the thermal imaging sensor detects high-temperature areas, while a buzzer alerts the staff.

Benefits of technology

It enables rapid reduction of temperature in small coal pillar areas, expands the spraying range, improves work efficiency, timely detection and treatment of hidden heating areas, avoids spontaneous combustion, and improves safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224039839U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of coal pillar fire prevention, in particular to a small coal pillar fire prevention cooling spraying device which comprises a moving trolley, a protection box is fixedly installed on the front side of the upper end of the moving trolley, a driving motor is fixedly installed on the front side in the moving trolley, and the output end of the driving motor extends to the inner side of the protection box and is fixedly provided with a transmission shaft. The upper end of the transmission shaft extends to the outer side of the protection box and is fixedly provided with a connecting disc, the upper end of the connecting disc is fixedly provided with a mounting frame, and the inner side of the mounting frame is provided with an atomization cooling spray cylinder; the temperature of a small coal pillar area is reduced by controlling the moving trolley to move and cooperating with atomizing and spraying of the atomizing and cooling spraying barrels, the first gear and the second gear are used for transmission, the corresponding atomizing and cooling spraying barrels are conveniently driven to rotate in the direction, and the spraying angle is adjusted in cooperation with the electric telescopic rod. The small coal pillar fireproof cooling spraying device can conduct atomization spraying cooling operation on the two sides at the same time, work efficiency can be improved, and the temperature of a work area can be rapidly reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the coal pillar fire prevention field especially small coal pillar fire prevention cooling spraying device. BACKGROUND

[0002] With the aggravation of coal mining and production activities, the fire risk in the mine environment is increasing, mine fire, especially the fire in the coal mine, once occurs, the consequence is extremely serious, the particularity of the internal environment of the coal mine, such as high temperature, humidity, air full of organic matter and complex mine ventilation system, all provide potential conditions for the outbreak of fire, in addition, once the mine fire occurs, not only can cause personnel casualty and equipment loss, but also can lead to the waste of coal resources and large-scale environmental pollution, therefore, effective fire prevention measures are crucial in the coal mine safety production.

[0003] At present, the ventilation condition in the small coal pillar area is poor, the heat generated in the oxidation process of coal is difficult to dissipate rapidly, which can easily lead to temperature rise and thus cause spontaneous combustion, and the spontaneous combustion process of the small coal pillar is more concealed and difficult to detect than large-scale coal pile. UTILITY MODEL CONTENT

[0004] In order to overcome the problem that the heat in the small coal pillar area is difficult to dissipate rapidly, which can easily lead to temperature rise and thus cause spontaneous combustion, and the spontaneous combustion process of the small coal pillar is difficult to detect.

[0005] The utility model discloses a small coal pillar fire prevention cooling spraying device, including mobile trolley, the front side fixed mounting of mobile trolley upper end has the protection box, the front side fixed mounting of mobile trolley inside has drive motor, the output of drive motor extends to the inside fixed mounting of protection box has transmission shaft, the upper end of transmission shaft extends to the outside fixed mounting of protection box has the connecting disc, the upper end fixed mounting of connecting disc has the mounting bracket, the inside of mounting bracket is provided with atomizing cooling spray cylinder, the front side rotationally connected of connecting disc upper end has electric telescopic handle, the surface fixed mounting of transmission shaft has gear one, the inside of protection box is located the side of transmission shaft and is provided with connecting shaft, the surface fixed mounting of connecting shaft has gear two, the upper end of connecting shaft extends to the outside fixed mounting of protection box has the same connecting disc, the both ends of mobile trolley are provided with holder, and the holder is provided with thermal imaging sensor, the rear side fixed mounting of mobile trolley upper end has control processing module, and the upper end of mobile trolley is located the side of control processing module and is fixed with bee calling organ.

[0006] Preferably, the inside of the mobile trolley is provided with a water storage structure connected with the atomizing cooling spray tube through a connecting hose, the water storage structure is provided with a liquid pump structure, which can cooperate with the atomizing cooling spray tube to pump water atomization cooling, and is electrically connected with the control processing module, especially control, the mobile trolley can be controlled to move by the staff, is provided with auxiliary power drive, and is convenient and flexible to turn, the display screen is provided with two, which is convenient for displaying thermal imaging image and temperature value, the driving motor can drive the transmission shaft to rotate, the gear one can drive the gear two to rotate, so that the transmission shaft and the connecting shaft drive the corresponding atomizing cooling spray tubes in the rotating direction respectively, the electric telescopic rod can adjust the atomizing spray angle of the atomizing cooling spray tube, and the thermal imaging sensor can detect the thermal imaging picture of the small coal pillar area.

[0007] Preferably, the output end of the driving motor is rotatably connected with the mobile trolley, and the surface of the transmission shaft is rotatably connected with the protection box.

[0008] Preferably, the lower end of the connecting shaft is rotatably connected with the mobile trolley, the surface of the connecting shaft is rotatably connected with the protection box, and the gear one is meshedly connected with the gear two.

[0009] Preferably, the mounting frame is designed in a U-shaped structure, the atomizing cooling spray tube is rotatably connected with the mounting frame, and the output end of the electric telescopic rod is rotatably connected with the atomizing cooling spray tube.

[0010] Preferably, the mobile trolley is electrically connected with the control processing module, and the driving motor and the electric telescopic rod are electrically connected with the control processing module.

[0011] Preferably, the buzzer is electrically connected with the control processing module, the holder and the thermal imaging sensor are electrically connected with the control processing module.

[0012] Preferably, the left side of the upper end of the control processing module is provided with a display screen, and the right side of the upper end of the control processing module is provided with a control button.

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

[0014] 1. The small coal pillar fireproof cooling spraying device, by controlling the mobile trolley to move, cooperating with the atomizing cooling spray tube to atomize and spray, reducing the temperature of the small coal pillar area, utilizing gear one and gear two transmission, conveniently driving the corresponding atomizing cooling spray tubes in the rotating direction respectively, and cooperating with the electric telescopic rod to adjust the spray angle, so that the small coal pillar fireproof cooling spraying device atomizes and sprays the two sides simultaneously, which is favorable for expanding the spraying range, improving the work efficiency, quickly reducing the temperature of the working area, and avoiding the spontaneous combustion caused by the temperature rise of the small coal pillar area.

[0015] 2、The small coal column fireproof cooling spraying device utilizes the thermal imaging sensor to detect the thermal imaging picture of the small coal column area, and transmits the picture data to the control processing module, and when the dangerous high temperature data is detected, the worker is prompted through the buzzer, the worker is facilitated to focus on the area for atomization spraying cooling, the hidden temperature rise of the small coal column is facilitated to be found in time, the problem that the spontaneous combustion occurrence process of the small coal column is difficult to perceive is solved, and safety is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic diagram of the small coal column fireproof cooling spraying device is shown. Figure 1 ;

[0017] Figure 2 A three-dimensional structure schematic diagram of the small coal column fireproof cooling spraying device is shown. Figure 2 ;

[0018] Figure 3 A three-dimensional structure schematic diagram of the mobile trolley is shown.

[0019] Figure 4 A three-dimensional structure schematic diagram of the atomization cooling spraying barrel is shown.

[0020] Figure 5 A three-dimensional structure schematic diagram of the driving motor is shown.

[0021] The drawings are explained: 1, mobile trolley; 2, protection box; 3, driving motor; 4, transmission shaft; 5, connecting disc; 6, mounting frame; 7, atomization cooling spraying barrel; 8, electric telescopic rod; 9, gear one; 10, connecting shaft; 11, gear two; 12, cloud platform; 13, thermal imaging sensor; 14, control processing module; 15, buzzer; 16, display screen; 17, control button. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the present application will be further described below with reference to the drawings and embodiments.

[0024] With the intensification of coal mining and production activities, the risk of fire in the mine environment is increasing. Mine fires, especially in coal mines, have extremely serious consequences once they occur. The particularity of the internal environment of coal mines, such as high temperature, humidity, air filled with organic matter, and complex mine ventilation system, all provide potential conditions for the outbreak of fire. In addition, once a fire occurs in a mine, it not only may cause casualties and equipment losses, but also may lead to waste of coal resources and large-scale environmental pollution. Therefore, effective fire prevention measures are crucial in coal mine safety production.

[0025] One special problem of coal mine fires is coal spontaneous combustion. Coal spontaneous combustion is a common type of fire during coal mining, especially in open coal piles, coal bins, and coal storage processes, which is easily triggered by environmental conditions, air humidity, coal calorific value, and other factors. Spontaneous combustion of coal piles not only wastes valuable coal resources, but also may lead to more serious fires and even endanger mine safety once it occurs. The formation of coal pile spontaneous combustion is because the organic matter in coal generates heat when it comes into contact with oxygen in the air, and the temperature rises to a certain extent, thereby causing a fire. This spontaneous combustion process is usually gradual and hidden.

[0026] The occurrence of coal spontaneous combustion is caused by the reaction of organic matter in coal with oxygen to generate heat. In the small coal column area, due to its small size and poor ventilation conditions, the heat generated during the oxidation process of coal is difficult to dissipate quickly, which easily leads to temperature rise and thus causes spontaneous combustion. Studies have shown that the spontaneous combustion process of small coal columns is more hidden and difficult to detect than large-scale coal piles, usually occurring on the surface or periphery of the coal column, and accompanied by uneven distribution of heat in the coal seam. The phenomenon of "heat source accumulation" existing in the coal column is one of the main reasons for the spontaneous combustion of small coal columns.

[0027] Please refer to Figures 1-5The utility model provides a kind of embodiment: small coal column fire prevention cooling spraying device, including movable trolley 1, the front side fixed mounting of movable trolley 1 upper end has protective box 2, the front side fixed mounting of movable trolley 1 inside has driving motor 3, the output of driving motor 3 extends to the inside fixed mounting of protective box 2 with transmission shaft 4, the upper end of transmission shaft 4 extends to the outside fixed mounting of protective box 2 with connecting disc 5, the upper end fixed mounting of connecting disc 5 has mounting bracket 6, the inside of mounting bracket 6 is provided with atomization cooling spray barrel 7, the front side rotationally connected with electric telescopic handle 8 on the upper end of connecting disc 5, the surface fixed mounting of transmission shaft 4 has gear one 9, the inside of protective box 2 is located the side of transmission shaft 4 and is provided with connecting shaft 10, the surface fixed mounting of connecting shaft 10 has gear two 11, the upper end of connecting shaft 10 extends to the outside fixed mounting of protective box 2 with identical connecting disc 5, the left and right ends of movable trolley 1 are all provided with holder 12, holder 12 is provided with thermal imaging sensor 13, the rear side fixed mounting of movable trolley 1 upper end has control processing module 14, the upper end of movable trolley 1 is located the side fixed mounting of control processing module 14 with buzzer 15, control movable trolley 1 moves, drives by driving motor 3, utilizes gear one 9 and gear two 11 transmission, so that transmission shaft 4 and connecting shaft 10 respectively drive corresponding atomization cooling spray barrel 7 rotation direction, and cooperate with electric telescopic handle 8 and adjust atomization spray angle, the small coal column fire prevention cooling spraying device is simultaneously atomized and sprayed cooling operation to both sides, quickly control reduces the temperature of small coal column area, the thermal imaging picture of small coal column area is detected using thermal imaging sensor 13, and when detecting dangerous high temperature data, staff is prompted to the area by buzzer 15 with emphasis atomization spray cooling.

[0028] Please refer to Figures 1-5 In the embodiment, the output of driving motor 3 is rotationally connected with movable trolley 1, the surface of transmission shaft 4 is rotationally connected with protective box 2, the lower end of connecting shaft 10 is rotationally connected with movable trolley 1, the surface of connecting shaft 10 is rotationally connected with protective box 2, gear one 9 is meshingly connected with gear two 11, mounting bracket 6 is designed as U-shaped structure, atomization cooling spray barrel 7 is rotationally connected with mounting bracket 6, the output of electric telescopic handle 8 is rotationally connected with atomization cooling spray barrel 7, control movable trolley 1 moves, cooperates atomization cooling spray barrel 7 atomization spray, reduces the temperature of small coal column area, driving motor 3 drives transmission shaft 4 to rotate, utilizes gear one 9 to drive gear two 11 to rotate, so that transmission shaft 4 and connecting shaft 10 respectively drive corresponding connecting disc 5 and atomization cooling spray barrel 7 rotation direction, and cooperate with electric telescopic handle 8 and adjust the atomization spray angle of atomization cooling spray barrel 7, the small coal column fire prevention cooling spraying device is simultaneously atomized and sprayed cooling operation to both sides, improve work efficiency, avoid that small coal column area temperature rises and causes spontaneous combustion.

[0029] Please refer to Figures 1-2In the embodiment, the mobile trolley 1 is electrically connected with the control processing module 14, the driving motor 3 and the electric telescopic rod 8 are electrically connected with the control processing module 14, the buzzer 15 is electrically connected with the control processing module 14, the holder 12 and the thermal imaging sensor 13 are electrically connected with the control processing module 14, the left side of the upper end of the control processing module 14 is provided with the display screen 16, the right side of the upper end of the control processing module 14 is provided with the control button 17, the thermal imaging picture of the small coal pillar area is detected by the thermal imaging sensor 13, the picture data is transmitted to the control processing module 14, the display and the image display screen 16 are displayed, the temperature value is displayed and the temperature display screen 16 is displayed, and when the dangerous high temperature data is detected, the staff is prompted by the buzzer 15, so that the staff can focus on the area for atomization spraying cooling.

[0030] When working, the mobile trolley 1 is controlled to move, the atomization cooling spray barrel 7 is atomized and sprayed, the temperature of the small coal pillar area is reduced, the driving motor 3 drives the transmission shaft 4 to rotate, the gear one 9 drives the gear two 11 to rotate, the transmission shaft 4 and the connecting shaft 10 drive the corresponding connecting disc 5 and the atomization cooling spray barrel 7 in the rotating direction respectively, and the atomization spraying angle of the atomization cooling spray barrel 7 is adjusted by the electric telescopic rod 8, so that the small coal pillar fire prevention and cooling spraying device can atomize and spray the two sides at the same time, the working efficiency is improved, the temperature rise of the small coal pillar area is avoided to cause spontaneous combustion, the thermal imaging picture of the small coal pillar area is detected by the thermal imaging sensor 13, the picture data is transmitted to the control processing module 14, the display and the image display screen 16 are displayed, the temperature value is displayed and the temperature display screen 16 is displayed, and when the dangerous high temperature data is detected, the staff is prompted by the buzzer 15, so that the staff can focus on the area for atomization spraying cooling.

[0031] Through the above steps, the mobile trolley 1 is controlled to move, the driving motor 3 is driven, the gear one 9 and the gear two 11 are driven, the transmission shaft 4 and the connecting shaft 10 drive the corresponding atomization cooling spray barrel 7 in the rotating direction respectively, and the atomization spraying angle is adjusted by the electric telescopic rod 8, so that the small coal pillar fire prevention and cooling spraying device can atomize and spray the two sides at the same time, the temperature of the small coal pillar area is quickly controlled and reduced, the heat of the small coal pillar area is difficult to dissipate rapidly, the temperature is easily increased, and the problem that spontaneous combustion is easily caused is solved.

Claims

1. A small coal pillar fire prevention and cooling spraying device, comprising a mobile trolley (1), characterized in that: The front side of the upper end of the mobile trolley (1) is fixedly installed with a protection box (2), the front side of the inside of the mobile trolley (1) is fixedly installed with a driving motor (3), the output end of the driving motor (3) extends to the inside of the protection box (2) and is fixedly installed with a transmission shaft (4), the upper end of the transmission shaft (4) extends to the outside of the protection box (2) and is fixedly installed with a connecting disc (5), the upper end of the connecting disc (5) is fixedly installed with a mounting frame (6), the inside of the mounting frame (6) is provided with an atomization cooling spray cylinder (7), the front side of the upper end of the connecting disc (5) is rotatably connected with an electric telescopic rod (8), the surface of the transmission shaft (4) is fixedly installed with a gear one (9), the inside of the protection box (2) is provided with a connecting shaft (10) at the side of the transmission shaft (4), the surface of the connecting shaft (10) is fixedly installed with a gear two (11), the upper end of the connecting shaft (10) extends to the outside of the protection box (2) and is fixedly installed with the same connecting disc (5), the left and right ends of the mobile trolley (1) are provided with a holder (12), the holder (12) is provided with a thermal imaging sensor (13), the rear side of the upper end of the mobile trolley (1) is fixedly installed with a control processing module (14), the upper end of the mobile trolley (1) is fixedly installed with a buzzer (15) at the side of the control processing module (14).

2. The small-pillar fire-prevention and temperature-lowering spraying device according to claim 1, characterized by: The output end of the driving motor (3) is rotatably connected with the mobile trolley (1), and the surface of the transmission shaft (4) is rotatably connected with the protection box (2).

3. The small-pillar fire-prevention and temperature-lowering spraying device according to claim 2, characterized in that: The lower end of the connecting shaft (10) is rotatably connected with the mobile trolley (1), and the surface of the connecting shaft (10) is rotatably connected with the protection box (2), and the gear one (9) is meshedly connected with the gear two (11).

4. The small-pillar fire-prevention and temperature-lowering spraying device according to claim 1, characterized by: The mounting frame (6) is designed in a U-shaped structure, the atomization cooling spray cylinder (7) is rotatably connected with the mounting frame (6), and the output end of the electric telescopic rod (8) is rotatably connected with the atomization cooling spray cylinder (7).

5. The small-pillar fire-prevention and temperature-lowering spraying device according to claim 1, characterized by: The mobile trolley (1) is electrically connected with the control processing module (14), and the driving motor (3) and the electric telescopic rod (8) are electrically connected with the control processing module (14).

6. The small-pillar fire-prevention and temperature-lowering spraying device according to claim 5, characterized by: The buzzer (15) is electrically connected with the control processing module (14), and the holder (12) and the thermal imaging sensor (13) are electrically connected with the control processing module (14).

7. The small-pillar fire-prevention and temperature-lowering spraying device according to claim 6, characterized by: A display screen (16) is arranged on the left side of the upper end of the control processing module (14), and a control button (17) is arranged on the right side of the upper end of the control processing module (14).