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CN-116838408-B - Underground automatic alarm fire extinguishing device for coal mine

CN116838408BCN 116838408 BCN116838408 BCN 116838408BCN-116838408-B

Abstract

The invention discloses an underground coal mine automatic alarming and fire extinguishing device, which relates to the technical field of fire extinguishing devices and comprises a fixed guide rail, a traveling mechanism, an alarming and fire extinguishing assembly and a plurality of storage tanks, wherein the fixed guide rail is paved at the top of a coal mine, the traveling mechanism is movably arranged on the fixed guide rail, the alarming and fire extinguishing assembly is arranged below the traveling mechanism, and the storage tanks are fixedly arranged at the upper end of the traveling mechanism and are arranged side by side and used for supplying extinguishing agent into the alarming and fire extinguishing assembly.

Inventors

  • WANG HAIYAN
  • Wang gongda
  • YANG XIN
  • NIU HUIYONG
  • CHEN ZHIWEN

Assignees

  • 北京科技大学

Dates

Publication Date
20260508
Application Date
20230803

Claims (6)

  1. 1. An underground coal mine automatic alarm fire extinguishing device is characterized by comprising: A fixed guide rail (1) laid on the top of the coal mine shaft; the travelling mechanism (2) is movably arranged on the fixed guide rail (1); the alarming and fire extinguishing assembly (4) is arranged below the travelling mechanism (2); The plurality of storage tanks (3) are fixedly arranged at the upper end of the travelling mechanism (2) and are arranged side by side and used for supplying fire extinguishing agents into the alarm fire extinguishing assembly (4); the alarm fire extinguishing assembly (4) comprises: a mounting case (41) movably provided on the fixed rail (1); A fire extinguishing nozzle member (44) provided in the installation case (41); The fire suppression nozzle member (44) includes: A supply pipe (441) that interfaces with a supply outlet of the supply tank (3); a side support saddle (442) fixed on the mounting shell (41), wherein four electric push rods (443) are circumferentially fixed on the side support saddle (442); The four extending plates (444) are circumferentially arranged, are rotatably arranged at the lower end of the supply pipe (441), are respectively hinged with the four electric pushing rods (443), and are respectively provided with through holes, and the electric pushing rods (443) can adjust the external inclination angle of the hollow frustum-like fire extinguishing agent; four micro cylinder bodies (446) are circumferentially arranged and fixed in the mounting shell (41), telescopic shafts (447) are slidably arranged in the micro cylinder bodies, and the telescopic shafts (447) are vertically and slidably arranged in the through holes; The guide plugs (445) are arranged among the four extension plates (444), and the upper ends of the guide plugs are respectively fixed with the four telescopic shafts (447); When the cylinder body of the fire extinguishing nozzle member (44) extends to a position where the fire extinguishing agent can transversely cover a continuous ignition area or a fire area larger than the continuous ignition area in a mine and then the coverage area needs to be adjusted again, the distance difference between the rear spraying projections of the fire extinguishing nozzle member (44) is adjusted The following should be satisfied: ; -initially, the vertical distance between the supply pipe (441) in the fire suppression sprinkler element (44) and the ground; -adjusting the vertical distance between the supply pipe (441) in the fire extinguishing nozzle member (44) and the ground after the fire extinguishing nozzle member (44) is adjusted; -initially, the fire suppression sprinkler head (44) sprays the distance of the fire suppression agent projection on the ground; -adjusting the distance of projection of the extinguishing agent on the ground by the extinguishing nozzle member (44) after the extinguishing nozzle member (44) is adjusted; -the angle at which the extinguishing agent is sprayed; -the amount of expansion of the cylinder on the fire suppression sprinkler (44); -the amount of expansion/contraction of the micro cylinder (446)/the distance of movement of the guide plug (445); -adjusting the distance difference between the rear spray projections of the rear fire suppression sprinkler (44).
  2. 2. An underground coal mine automatic alarming and extinguishing device according to claim 1, characterized in that the alarming and extinguishing components (4) are arranged corresponding to the supply outlets of the supply storage tank (3) and are matched in number.
  3. 3. The underground coal mine automatic alarming and extinguishing device according to claim 1, wherein a visual detection mechanism (42) and a thermal imaging mechanism (43) are arranged on the mounting shell (41).
  4. 4. A downhole automatic alarm fire extinguishing device for coal mine as claimed in claim 3, wherein the traveling mechanism (2) is further provided with a control system which controls the traveling mechanism (2) to travel on the fixed guide rail (1) at regular time, and the control system can feed back and move to a fire place and adjust the movement state of the fire extinguishing spray head piece (44) according to the data of the visual detection mechanism (42) and the thermal imaging mechanism (43).
  5. 5. The underground coal mine automatic alarming and extinguishing device according to claim 1, wherein the corners of the four extension plates (444) are respectively provided with a telescopic guide plate, and the lengths of the four extension plates (444) are the same.
  6. 6. The underground coal mine automatic alarming and extinguishing device according to claim 1, wherein the guide plug (445) is of a square frustum structure with the upper end and the lower end being equal to the opening caliber of the lower end of the supply pipe (441).

Description

Underground automatic alarm fire extinguishing device for coal mine Technical Field The invention relates to the technical field of fire extinguishing devices, in particular to an underground coal mine automatic alarm fire extinguishing device. Background Fire is a common accident in coal mines, so the underground coal mine automatic alarming and extinguishing device is a very important technology in the safe production of coal mines, can effectively prevent and inhibit the occurrence of mine fire, and ensures the life safety of underground operators. The existing fire extinguishing mode in the coal mine usually adopts water-based fire extinguishing, inert gas fire extinguishing and the like, and can not effectively carry out real-time patrol and inspection, and the fire extinguishing time is single (the fire extinguishing is carried out firstly in a point-to-point mode and then is carried out to other fire points), so that the fire extinguishing effect is poor. Therefore, it is necessary to provide an underground coal mine automatic alarm fire extinguishing device to solve the problems in the background art. Disclosure of Invention In order to achieve the purpose, the invention provides the following technical scheme that the underground automatic alarming and fire extinguishing device for the coal mine comprises: a fixed rail laid on the top of the coal mine shaft; the travelling mechanism is movably arranged on the fixed guide rail; an alarming and fire extinguishing assembly arranged below the travelling mechanism and The storage tanks are fixedly arranged at the upper end of the travelling mechanism, are arranged side by side and are used for supplying fire extinguishing agents into the alarm fire extinguishing assembly. Further, preferably, the alarm fire extinguishing assembly is arranged corresponding to the supply outlet of the supply tank, and the number of the alarm fire extinguishing assemblies is matched with the number of the supply outlets of the supply tank. Further, preferably, the alarm fire extinguishing assembly includes: The mounting shell is movably arranged on the fixed guide rail, and a visual detection mechanism and a thermal imaging mechanism are arranged on the mounting shell; and the fire extinguishing spray head piece is arranged in the installation shell. Further, preferably, a control system is further installed on the travelling mechanism, and the control system controls the travelling mechanism to walk on the fixed guide rail at regular time, and the control system can move to a fire place and adjust the movement state of the fire extinguishing spray head piece according to data feedback of the visual detection mechanism and the thermal imaging mechanism. Further, preferably, the fire extinguishing nozzle unit includes: a supply pipe which is butted with a supply outlet of the supply storage tank; The side support is fixed on the mounting shell, and four electric push rods are circumferentially fixed on the side support; The four extending plates are circumferentially arranged, are rotatably arranged at the lower end of the supply pipe and are respectively hinged with the four electric push rods, and are provided with through holes; The four miniature cylinder bodies are circumferentially arranged and fixed in the installation shell, telescopic shafts are slidably arranged in the miniature cylinder bodies, and the telescopic shafts are vertically and slidably arranged in the through holes; The guide plugs are arranged among the four extension plates, and the upper ends of the guide plugs are respectively fixed with the four telescopic shafts. Further, preferably, four extension plates are provided at corners thereof with telescopic guide plates, and the four extension plates have the same length. Preferably, the guide plug has a square frustum structure at the upper and lower ends, and the length of the upper end is equal to the aperture of the lower end of the supply pipe. Compared with the prior art, the invention provides the underground coal mine automatic alarm fire extinguishing device, which has the following beneficial effects: According to the invention, the travelling mechanism is guided on the fixed guide rail, the visual detection mechanism and the thermal imaging mechanism are utilized to accurately identify and move to the fire position, the travelling mechanism moves back and forth according to the requirement in the fire extinguishing process, the control system controls the electric push rod and the miniature cylinder body to stretch out and draw back, the fire extinguishing agent is ensured to be projected to be in a square-like annular gradual inward shrinkage type on the ground, on one hand, the fire extinguishing agent forms a conical fire extinguishing belt in the air so as to achieve the purpose of isolating outside air, on the other hand, the fire extinguishing agent can extinguish the fire in the interior fire point one by one, and when the fire exti