阅读说明：本技术 一种矿井火灾防治用防火门 (Fire door is prevented and treated with preventing and treat to mine conflagration ) 是由 万祥云 王洪义 贾炳 彭荣富 田好敏 王文军 娄全 曹树蒙 丁绍鹏 于 2019-09-18 设计创作，主要内容包括：本发明公开了一种矿井火灾防治用防火门,包括门体和贯穿门体的人孔,所述门体中设有两个拉门,所述拉门与门体平行并滑动连接在人孔底部,所述门体的两侧顶部共同连接有整风流装置和泄压装置,两个所述拉门分别设置在门体的两侧,每个所述拉门与门体同侧的整流室连通并且密封连通有气流通道,所述气流通道与整流室的连接处位于整流室中隔板的下方空间。本发明由整风流装置和泄压装置造成了两个气流流动作用,而两者流速不同使得在一个平面内构成稳定的风流流向趋势,烟雾和热流将沿着撞击安全门和沿安全门平面流动后流出的循环过程,使得在烟雾充分与活性碳层接触吸收有害物质,便于对风流进行引导作用,方便灭火。(The invention discloses a fire door for mine fire prevention, which comprises a door body and a manhole penetrating through the door body, wherein two sliding doors are arranged in the door body, the sliding doors are parallel to the door body and are connected to the bottom of the manhole in a sliding manner, the tops of two sides of the door body are connected with an air flow regulating device and a pressure relief device together, the two sliding doors are respectively arranged on two sides of the door body, each sliding door is communicated with a rectifying chamber on the same side of the door body and is hermetically communicated with an air flow channel, and the joint of the air flow channel and the rectifying chamber is positioned in a space below a partition plate in the rectifying chamber. The invention has two airflow flowing effects caused by the air flow adjusting device and the pressure relief device, and the two airflow flowing effects have different flow rates, so that a stable airflow flowing trend is formed in a plane, and the smoke and the heat flow out along the circular process after impacting the safety door and flowing along the plane of the safety door, so that the smoke is fully contacted with the activated carbon layer to absorb harmful substances, the wind flow is conveniently guided, and the fire is conveniently extinguished.)

1. The utility model provides a mine fire prevention and cure is with preventing fire door, includes the door body (1) and runs through manhole (2) of a body (1), its characterized in that, be equipped with two sliding doors (3) in the door body (1), sliding door (3) are parallel and sliding connection in manhole (2) bottom with the door body (1), the both sides top of the door body (1) is connected with whole wind stream device and pressure relief device jointly.

The air flow adjusting device comprises fans (4) symmetrically arranged at two sides of a door body (1), each fan (4) is fixedly connected with a transmission shaft (5), the transmission shaft (5) penetrates through the corresponding outer wall of the door body (1), two sides of the door body (1) close to the transmission shaft (5) are respectively provided with a rectifying chamber (8), the transmission shaft (5) is rotatably connected with the side wall of the rectifying chamber (8) far away from the fan (4) through a bearing, a universal joint (6) is arranged on the transmission shaft (5), the other working end of the universal joint (6) is fixedly connected with a blade (7) through a rotating rod, the inner wall of the rectification chamber (8) is fixedly connected with a partition plate (9) in a sealing manner, a space of the rectification chamber (8) below the partition plate (9) is filled with low-boiling-point liquid, and each partition plate (9) is respectively provided with two check valves (12) in opposite directions;

the pressure relief device comprises two rotating plates (15) which are arranged on different side faces of the door body (1) respectively, the rotating plates (15) are arranged in a staggered mode, each rotating plate (15) is sealed with an air outlet pipe (16), and the rotating plates (15) are connected with double-layer metal sheets (17).

2. The fire door for mine fire prevention according to claim 1, wherein two sliding doors (3) are respectively arranged on two sides of the door body (1), each sliding door (3) is communicated with the rectifying chamber (8) on the same side of the door body (1) and is hermetically communicated with an airflow channel (14), and the joint of the airflow channel (14) and the rectifying chamber (8) is positioned in a space below the partition plate (9) in the rectifying chamber (8).

3. The fire door for mine fire prevention and control according to claim 1, wherein a vent pipe (10) and a return pipe (11) are commonly communicated between the two rectifying chambers (8), the vent pipe (10) is communicated with a space of the rectifying chamber (8) above the partition plate (9), the return pipe (11) is communicated with a space of the rectifying chamber (8) below the partition plate (9), a pressure valve (13) is arranged in the vent pipe (10), and two side surfaces of the door body (1) are coated with an activated carbon layer.

Technical Field

The invention relates to the technical field of mine fire prevention and control, in particular to a fireproof door for mine fire prevention and control.

Background

The fire disasters occurring underground coal mines and the fire disasters which are near well mouths and endanger underground safety are called mine fires, the mine fires are divided into internal fire disasters and external fire disasters, and the fire disasters caused by external fire sources, such as open fires generated by lamp fire, matches, smoking, stove, blasting, mechanical friction, electric welding, current short circuit and the like, are called external fire disasters. The fire caused by spontaneous combustion of coal is called internal cause fire, the internal cause fire accounts for about 75% of the total number of mine fires, and when the fire occurs, due to the existence of the angular ventilation path, the air flow is relatively turbulent, so that the fire is not beneficial to treatment.

The invention relates to a mine fire door which is a safety facility for preventing underground fire from spreading and controlling wind flow, wherein the construction of the safety fire door is an effective measure for preventing fire from spreading by blocking fire smoke flow under a coal mine, so that the fire is prevented from spreading, and casualties are reduced.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, a mine fire door only has the function of blocking wind current, and workers are inconvenient to extinguish a fire and even can be damaged, and provides the mine fire prevention and treatment fire door.

In order to achieve the purpose, the invention adopts the following technical scheme: a fire door for mine fire prevention comprises a door body and a manhole penetrating through the door body, wherein two sliding doors are arranged in the door body, the sliding doors are parallel to the door body and are connected to the bottom of the manhole in a sliding manner, and the tops of two sides of the door body are connected with an air flow regulating device and a pressure relief device together;

the rectifying device comprises fans symmetrically arranged on two sides of a door body, each fan is fixedly connected with a transmission shaft, the transmission shafts penetrate through the corresponding outer wall of the door body, two rectifying chambers are respectively arranged on two sides, close to the transmission shafts, in the door body, the transmission shafts are rotatably connected with the side walls, far away from the fans, of the rectifying chambers through bearings, universal joints are arranged on the transmission shafts, blades are fixedly connected with the other working ends of the universal joints through rotating rods, partition plates are fixedly connected with the inner walls of the rectifying chambers in a sealing manner, low-boiling-point liquid is filled in spaces, located below the partition plates, of the rectifying chambers, and each partition plate is respectively provided with two check valves in opposite;

the pressure relief device comprises two rotating plates which are arranged on different side faces of the door body respectively, the two rotating plates are arranged in a staggered mode, each rotating plate is sealed with an air outlet pipe, and the rotating plates are connected with double-layer metal sheets.

In the fireproof door for preventing and treating mine fire, the two sliding doors are respectively arranged on two sides of the door body, each sliding door is communicated with the rectifying chamber on the same side of the door body and is hermetically communicated with an airflow channel, and the joint of the airflow channel and the rectifying chamber is positioned in the space below the middle partition plate of the rectifying chamber.

In the fire door for mine fire prevention and control, two rectification chambers are communicated with each other by a vent pipe and a return pipe, the vent pipe is communicated with the space above the partition plate of the rectification chamber, the return pipe is communicated with the space below the partition plate of the rectification chamber, a pressure valve is arranged in the vent pipe, and the surfaces of two sides of the door body are coated with an activated carbon layer.

Compared with the prior art, the invention has the advantages that:

1. according to the invention, a Rankine cycle process is formed by evaporation and liquefaction of low-boiling-point liquid filled in two rectifying chambers, and because the evaporation temperature of the low-boiling-point liquid is lower, the rectifying chamber positioned on one side of a fire disaster enables the low-boiling-point liquid to be heated through temperature conduction, and gas generated by evaporation of the low boiling point impacts blades to generate blade rotation, and the rotation of a fan positioned on one side of the fire disaster is realized through the transmission of a universal joint;

2. the fan rotates spontaneously when a fire disaster happens to reduce the surrounding air pressure, the flow direction of smoke and hot air generated by the fire disaster generally goes from a high-pressure direction to a low-pressure direction, in the process, under the auxiliary action of the fan, the smoke and the hot air integrally flow to one side of the fireproof door and finally vertically impact the fireproof door, and the fan is arranged at the top of one side of the fireproof door, so that the gas floating rule is met; the active carbon layer is arranged on the surface of the fireproof door, so that solid impurities in smoke can be absorbed when the smoke collides with the fireproof door, and the effect of absorbing harmful substances is achieved under the spontaneous combustion fire of incomplete combustion, so that the fire can not be caused by too high concentration of the smoke and the harmful substances when entering the space in the fire when fire is extinguished.

3. The other side at the fan sets up the commentaries on classics board by temperature control, when one side temperature obviously risees, can produce deformation owing to the heat altered shape effect in the double-deck sheetmetal in the commentaries on classics board for the state of a sealed outlet duct is relieved to the commentaries on classics board, makes the outlet duct outwards discharge the gas on one side of the conflagration under the hot pressure effect, has reduced the atmospheric pressure in the space on one side of the conflagration, and door body both sides are provided with two sets of commentaries on classics board structures respectively, makes and all can realize the pressure release function when each side.

4. The rectification room passes through airflow channel intercommunication with the sliding door simultaneously, and when the temperature obviously rose, the low boiling point liquid inflation will promote the sliding door along airflow channel parallel direction displacement, finally realizes the state of sealed manhole, has realized the effect of closing the mine emergency exit voluntarily when the conflagration takes place to atmospheric pressure that produces at low boiling point liquid evaporation makes the closure state comparatively stable.

5. Because the low boiling point liquid is heated and evaporated in the rectification chamber close to the fire disaster, and is cooled and liquefied in the rectification chamber at the other side, and circulation is formed, so that the outer surface of the door body where the fan is located has a heat absorption effect all the time, and has the effect of continuously consuming heat, the rapid outward diffusion of temperature is reduced, the heat insulation effect of the fireproof door is improved, and the danger caused by overhigh temperature during escape in the case of the fire disaster is also improved.

6. In the invention, the airflow flowing action is caused by the air flow adjusting device consisting of the fan and the pressure relief device consisting of the air outlet pipe at different two ends of the safety door at one side, and the airflow flowing formed by the fan is larger than that of the pressure relief structure, so that in the state, smoke and heat flow generated by fire firstly impact the safety door and then reversely flow out after flowing along the direction parallel to the safety door, on one hand, the smoke is fully contacted with the active carbon layer to absorb solid particles and harmful substances in the smoke when moving along the direction of the safety door, on the other hand, the space airflow flowing in the fire is always regular, and the gas exhausted through the air outlet pipe has less content of toxic substances, thereby avoiding influencing the external environment, simultaneously, having a guiding action on the airflow and being convenient for the subsequent fire extinguishing operation.

Drawings

Fig. 1 is a schematic structural view of a fire door for preventing and controlling a mine fire according to the present invention;

fig. 2 is an enlarged schematic view of a portion a of a fire door for mine fire prevention according to the present invention;

fig. 3 is a plan view of a fire door for preventing and controlling a fire in a mine according to the present invention;

fig. 4 is a front view of a fire door for preventing and controlling a fire in a mine according to the present invention;

fig. 5 is a schematic structural view of an air outlet pipe in the fire door for mine fire prevention and control according to the present invention.

In the figure: the device comprises a door body 1, a manhole 2, a sliding door 3, a fan 4, a transmission shaft 5, a universal joint 6, blades 7, a rectifying chamber 8, a partition plate 9, a vent pipe 10, a return pipe 11, a check valve 12, a pressure valve 13, an airflow channel 14, a rotating plate 15, an air outlet pipe 16 and a double-layer metal sheet 17.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.