Portable coal pile cooling device

Abstract

The utility model discloses a portable coal pile cooling device. At present, the internal temperature of a coal stack is measured by manually holding a temperature measuring rod, but the method has the problems of large workload, low efficiency, poor universality, low repeatability and the like. The device comprises a bottom plate (11), a supporting frame (9) is fixed on the bottom plate, a handle rod (8) is fixed on the supporting frame, a water spraying drill rod (7) is connected to the bottom plate through a bearing, a power device for providing power for the water spraying drill rod is fixed on the supporting frame, and temperature measuring air spraying rods (6) are connected to the two sides of the bottom plate respectively. The portable coal pile cooling device is used for portable coal pile cooling.

Description

Technical Field

[0001] The utility model relates to a portable coal pile cooling device. Background Art

[0002] The spontaneous combustion process of coal is an extremely complex process involving physical and chemical reactions, and its influencing factors include coalification degree, moisture, particle size, pyrite content, temperature and pressure, etc. The mainstream spontaneous combustion mechanism is currently based on the coal-oxygen complex theory, which mainly believes that it is the interaction between coal and oxygen, that is, the interaction between inorganic or organic coal-oxygen complexes inside coal at different stages, thereby triggering a series of endothermic / exothermic reactions, and then triggering spontaneous combustion. Real-time detection and early discovery of coal piles with spontaneous combustion hazards in coal storage yards are the key and difficulty of coal storage yard safety supervision.

[0003] The oxidation spontaneous combustion process will cause the surface temperature to rise, so the temperature measurement method can be used to detect and warn of the hidden dangers of coal spontaneous combustion. In the actual work in the early years, manual handheld temperature measuring rods were mostly used to measure the internal temperature of the coal pile, but this method has many problems such as large workload, low efficiency, poor popularity, and low repeatability. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a portable coal pile cooling device.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A portable coal pile cooling device comprises: a bottom plate, a supporting frame is fixed on the bottom plate, a water jet drill rod is connected to the bottom plate through a bearing, a power device for providing power to the water jet drill rod is fixed on the supporting frame, and temperature measuring air jet rods are respectively connected to the two sides of the bottom plate.

[0007] The portable coal pile cooling device, the power device includes a motor, the output shaft of the motor is fixed to the active bevel gear, the upper and lower sides of the transmission shaft are respectively fixed with transmission bevel gears, the active bevel gear is meshed with the transmission bevel gear at the upper end of the transmission shaft, and the transmission bevel gear at the lower end of the transmission shaft is meshed with the passive bevel gear on the water jet drill rod.

[0008] The portable coal pile cooling device, the temperature measuring air jet rod comprises a main pipe, the main pipe is a hollow pipe, the main pipe is internally threadedly connected with an air jet pipe, the bottom of the air jet pipe is fixed with an air outlet, and the bottom of the air outlet is fixed with a cone head;

[0009] The jet pipe is a cylindrical hollow pipe, the side wall of the air outlet is provided with an air port, and the temperature measuring probe is placed in the air outlet.

[0010] The portable coal pile cooling device, the water jet drill rod comprises a drill rod, a drill bit is fixed at the bottom of the drill rod, the drill rod is a hollow tube, a plurality of evenly arranged water outlets are opened at the bottom of the drill rod, and a water outlet filter is sleeved at the bottom of the drill rod;

[0011] The top of the drill rod is connected to the water inlet pipe head through a bearing, and the water inlet pipe head is provided with a water inlet joint.

[0012] The portable coal pile cooling device has a hand support plate fixed on the main pipe.

[0013] The portable coal pile cooling device has a handle fixed on the supporting frame. Beneficial Effects

[0014] 1. The utility model utilizes the principle of piling to drive the drill rod into the 4-meter-deep bottom of the coal pile slope, detects the internal temperature of the coal pile, and passes water through the on-site flushing water or fire-fighting water so that the cooling water is sprayed out through the water-spraying drill rod, thereby achieving the effect of preventing spontaneous combustion and reducing the risk of fire.

[0015] 2. The utility model is provided with two temperature measuring jet pipes. The two temperature measuring jet rods are also inserted into the lower part of the coal pile. The temperature of the lower part of the coal pile is detected by the temperature measuring probe inside the two temperature measuring jet rods. The water spraying and the jetting are controlled by the temperature.

[0016] 3. The utility model can start the water-spraying drill rod to spray water when the temperature of the coal pile is about to reach the self-ignition temperature, and at the same time the temperature-measuring jet rod sprays air, and the gas sprayed is inert gas, and the effect of preventing spontaneous combustion is achieved through the dual effects of inert gas and water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 yes Figure 1 A magnified view of part A;

[0020] Figure 4 It is a schematic diagram of the structure of a water jet drill rod;

[0021] Figure 5 It is a schematic diagram of the structure of the temperature measuring jet rod;

[0022] Figure 6 is a cross-sectional view of the temperature measuring jet rod;

[0023] Figure 7 yes Figure 5 A magnified view of part B;

[0024] In the figure: 1. motor; 2. active bevel gear; 3. transmission bevel gear; 4. transmission shaft; 5. passive bevel gear; 6. temperature measuring jet rod; 7. spray drill rod; 8. handle; 9. support frame; 10. support plate; 11. bottom plate; 12. jet pipe; 13. hand plate; 14. main pipe; 15. temperature measuring probe; 16. rib plate; 17. air outlet; 18. air port; 19. drill bit; 20. water outlet; 21. drill rod; 22. water inlet pipe head; 23. water inlet joint; 24. water outlet filter; 25. cone head; 26. nut. DETAILED DESCRIPTION

[0025] Reference Figure 1-Figure 3 A portable coal pile cooling device comprises: a bottom plate 11, a support frame 9 is fixed on the bottom plate, a handle 8 is fixed on the support frame, a water jet drill rod 7 is connected to the bottom plate through a bearing, a power device for providing power to the water jet drill rod is fixed on the support frame, and temperature measuring jet rods 6 are respectively connected to the two sides of the bottom plate.

[0026] During operation, the temperature measuring probe in the temperature measuring jet rod measures the internal temperature of the coal pile. When the auto-ignition temperature is about to be reached, the drive is started to supply water. The water is sprayed out through the water jet drill rod to cool the coal pile. At the same time, inert gas is sprayed out from the temperature measuring jet rod, which can play a flame retardant role.

[0027] The power device includes a motor 1, the output shaft of the motor is fixed to the driving bevel gear 2, and the upper and lower sides of the transmission shaft are respectively fixed with transmission bevel gears 3. The driving bevel gear is meshed with the transmission bevel gear at the upper end of the transmission shaft, and the transmission bevel gear at the lower end of the transmission shaft is meshed with the passive bevel gear 5 on the water jet drill rod.

[0028] Reference Figure 4 The water jet drill rod comprises a drill rod 21, a drill bit 19 is fixed at the bottom of the drill rod, the drill rod is a hollow tube, a plurality of evenly arranged water outlets 20 are opened at the bottom of the drill rod, and a water outlet filter 24 is sleeved at the bottom of the drill rod;

[0029] The top of the drill pipe is connected to the water inlet pipe head 22 through a bearing, and the water inlet pipe head is provided with a water inlet joint 23.

[0030] Reference Figure 5-Figure 7 The temperature measuring jet rod includes a main pipe 14, a hand support plate 13 is fixed on the main pipe, the main pipe is a hollow pipe, a jet pipe 12 is threadedly connected to the inside of the main pipe, a gas outlet 17 is fixed at the bottom of the gas outlet, and a cone head 25 is fixed at the bottom of the gas outlet;

[0031] The jet pipe is a cylindrical hollow tube, and an air port 18 is opened on the side wall of the outlet tube. The temperature probe 15 is placed in the outlet tube. A rib 16 is fixed inside the outlet tube. The rib has a circular hole in the center, and the probe of the temperature probe can pass through the circular hole. The rib can support the temperature probe to prevent the probe from contacting the tube wall.

[0032] Working principle: Start the motor, the motor drives the active bevel gear to rotate, the active bevel gear meshes with the transmission bevel gear, the transmission bevel gear meshes with the passive bevel gear, so that it drives the water jet drill rod to rotate, and drills it into the coal pile through the drill bit. After drilling into the coal pile, hold the handrail and manually insert one of the temperature measuring jet rods into the coal pile. After insertion, twist the jet pipe, and the jet pipe is threadedly connected to the main pipe to make the height of the jet pipe continue to drop until the lower surface of the nut 26 welded on the top of the jet pipe abuts against the main pipe and stops. At this time, the air outlet is exposed at the bottom of the main pipe, and the temperature measuring probe can measure the temperature inside the coal pile in real time. Insert another temperature measuring jet pipe Repeat the above steps, insert it into the coal pile and expose the air outlet pipe from the main pipe. The two temperature measuring probes measure the temperature inside the coal pile at the same time. When the temperature inside the coal pile reaches the set temperature, start the on-site flushing water or fire water to pass the cooling water into the water jet drill rod and discharge it into the coal pile through the water outlet, so as to achieve the purpose of cooling the inside of the coal pile. At the same time, a water outlet filter can prevent the burning coal in the coal pile from clogging the water outlet. At this time, the air supply device is controlled to supply air, and the inert gas enters the jet pipe and is sprayed into the coal pile through the air outlet of the air outlet pipe. The dual effects of inert gas and water can achieve the effect of preventing spontaneous combustion.

Claims

1. A portable coal pile cooling device, characterized by: The invention comprises: a bottom plate, a supporting frame is fixed on the bottom plate, a water jet drill rod is connected to the bottom plate through a bearing, a power device for providing power to the water jet drill rod is fixed on the supporting frame, and temperature measuring jet rods are respectively connected to the two sides of the bottom plate.

2. A portable coal pile cooling device according to claim 1, characterized in that: The power device comprises a motor, the output shaft of the motor is fixed to the driving bevel gear, the upper and lower sides of the transmission shaft are respectively fixed with driving bevel gears, the driving bevel gear is meshed with the driving bevel gear at the upper end of the transmission shaft, and the driving bevel gear at the lower end of the transmission shaft is meshed with the passive bevel gear on the water jet drill rod.

3. A portable coal pile cooling device according to claim 2, characterized in that: The temperature measuring jet rod comprises a main pipe which is a hollow pipe, a jet pipe is threadedly connected inside the main pipe, a gas outlet is fixed at the bottom of the gas outlet, and a cone head is fixed at the bottom of the gas outlet.

4. A portable coal pile cooling device according to claim 3, characterized in that: The water jet drill rod comprises a drill rod, a drill bit is fixed at the bottom of the drill rod, the drill rod is a hollow tube, a plurality of evenly arranged water outlets are opened at the bottom of the drill rod, and a water outlet filter is sleeved at the bottom of the drill rod; the top of the drill rod is connected to the water inlet pipe head through a bearing, and the water inlet pipe head is provided with a water inlet joint.

5. A portable coal pile cooling device according to claim 4, characterized in that: A hand support plate is fixed on the main pipe.

6. A portable coal pile cooling device according to claim 5, characterized in that: A handle is fixed on the supporting frame.

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