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Coal mine rapid and automatic flame-retardant explosion-proof device and automatic detection control system thereof

An automatic detection and control system technology, applied in safety devices, mining equipment, earthwork drilling, etc., can solve the problems of prolonging the trigger time, affecting flame retardant and explosion proof, reducing the reserve of fire extinguishing powder, etc., to reduce the risk of secondary explosion , Eliminate the interference of human factors, improve the effect of safety and effectiveness

Pending Publication Date: 2021-08-06
山东宸兴重工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there are some problems in the above-mentioned device: (1) The impact force of the shock wave needs to be transmitted layer by layer and finally reach the piston, so that the fire extinguishing powder is sprayed out. The eruption time is not conducive to flame-retardant and explosion-proof; (2) The high-pressure gas in the high-pressure tank needs to go backward to the sealing vent hole first, and then turn back to impact the fire extinguishing powder, so that the time from the triggering of the device to the spraying of the fire extinguishing powder is too long, which is not conducive to The fire extinguishing powder is quickly and evenly distributed in the roadway, which affects the fire extinguishing effect; (3) the high-pressure tank occupies a large amount of space in the storage bin, which reduces the reserve of fire extinguishing powder, and the flame-retardant and explosion-proof effect is not good; (4) the high-pressure tank is in storage. The warehouse takes up a lot of space. When the device is triggered to spray fire extinguishing powder, a cavity will be formed in the central part, and the distribution of fire extinguishing powder will be uneven, which will affect the effect of flame retardant and explosion proof; (5) The device can only deal with single Explosion in one direction cannot prevent explosion and combustion in another direction

Method used

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  • Coal mine rapid and automatic flame-retardant explosion-proof device and automatic detection control system thereof
  • Coal mine rapid and automatic flame-retardant explosion-proof device and automatic detection control system thereof
  • Coal mine rapid and automatic flame-retardant explosion-proof device and automatic detection control system thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0049] This embodiment is a one-way receiving and one-way eruption mode. Such as figure 1 , Image 6 , Figure 11-12 As shown, a coal mine rapid automatic flame-retardant explosion-proof device and its automatic detection and control system include a high-pressure gas storage bin 1, an eruption powder storage bin 2, a trigger assembly 3 and an automatic detection and control system. The trigger assembly 3 passes through the eruption Inside the powder storage bin 2, the high-pressure gas storage bin 1 is arranged outside the eruption powder storage bin 2, the high-pressure gas storage bin 1 is provided with a piston 4, and the trigger assembly 3 includes a transfer rod 5, and the piston 4 is connected to the transfer rod 5. The high-pressure gas storage bin 1, the eruption powder storage bin 2 and the trigger assembly 3 are installed on the top of the coal mine roadway through the hanging device 6.

[0050] Both ends of the piston 4 have the same diameter and the piston 4 ca...

no. 2 example

[0066] This embodiment is a one-way receiving and two-way eruption mode. Such as figure 2 , Figure 7 , Figure 11-12 As shown, one end of the transmission rod 5 is provided with a shock wave receiving portion 16 for receiving a one-way shock wave; different from the first embodiment, the high-pressure gas storage bin 1 is connected to two symmetrically distributed eruption powder storage bins 2 , two symmetrically distributed eruption powder storage bins 2 spray in opposite directions, and after triggering, the fire extinguishing powder is erupted in two directions, which increases the effective protection range of the fire extinguishing powder compared with the one-way eruption method, and achieves a two-way explosion-proof effect.

[0067] Such as Figure 7As shown, the number of the steel ball limiting groove 18 is one, and the steel ball limiting groove 18 is closer to the high-pressure gas storage bin 1 than the steel ball storage groove 17 .

[0068] figure 2 Rec...

no. 3 example

[0070] This embodiment is a two-way reception and one-way eruption mode, which can be applied to roadways where the source of the explosion direction is uncertain. Such as image 3 , Figure 8 , Figure 11-12 As shown, both ends of the transmission rod 5 are provided with shock wave receivers 16 for bidirectionally receiving shock waves; the high-pressure gas storage chamber 1 is connected to an eruption powder storage chamber 2, which emits fire extinguishing powder in one direction after being triggered.

[0071] Such as Figure 8 As shown, the number of steel ball limiting grooves 18 on the surface of each piston 4 is 2, and the two steel ball limiting grooves 18 are symmetrically arranged with respect to the steel ball storage groove 17, and are used to limit the position of the piston 4 after two-way triggering. bit.

[0072] image 3 For bi-directional reception of the left jet, it can also be set to bi-directional reception of the right jet.

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PUM

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Abstract

The invention relates to the technical field of coal mine flame-retardant devices, in particular to a coal mine rapid and automatic flame-retardant explosive-proof device and an automatic detection control system thereof. The coal mine rapid and automatic flame-retardant explosive-proof device comprises a high-pressure gas storage bin, an eruption powder storage bin, a trigger assembly and the automatic detection control system, the trigger assembly penetrates through the eruption powder storage bin, the high-pressure gas storage bin is arranged outside the eruption powder storage bin, a piston is arranged in the high-pressure gas storage bin, the trigger assembly comprises a transmission rod, the piston is connected with the transmission rod, and the high-pressure gas storage bin, the eruption powder storage bin and the trigger assembly are installed at the top in a coal mine tunnel through a hanging device. According to the coal mine rapid and automatic flame-retardant explosive-proof device, a shock wave receiving part directly transmits the impact force to the piston through the transmission rod, so that the fire extinguishing powder is ejected, the triggering mode is more direct, the triggering time is shorter, and the purposes of flame retardance and explosion suppression can be quickly achieved.

Description

technical field [0001] The invention relates to the technical field of flame retardant devices in coal mines, in particular to a rapid automatic flame retardant and explosion-proof device for coal mines and an automatic detection and control system thereof. Background technique [0002] In coal mines, explosions are generally divided into two categories, namely gas explosions and coal dust explosions. Regardless of whether it is a gas explosion or a coal dust explosion, its hazards are generally divided into four categories: first, high temperature. Mine fires, burnt equipment, burnt personnel; second, high pressure, the gas pressure after the gas explosion is 7 to 10 times the gas pressure before the explosion through experiments and theoretical calculations, and the theoretical pressure of the coal dust explosion can reach 735kPa, which can damage equipment, Push down the frame, causing roof fall and casualties; third, toxic and harmful gas, the concentration of carbon mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F5/10
CPCE21F5/10
Inventor 郭星辰
Owner 山东宸兴重工科技有限公司
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