CN219366095U - Quick air door for underground coal mine - Google Patents

Abstract

The utility model discloses a quick air door for an underground coal mine, which comprises an iron plate, a door frame, an air control oil cylinder, an air door main body and a visual window, wherein the iron plate is fixed on a roadway through an anchor rod, the air door main body is arranged on a detachable iron plate through the door frame, an air cylinder opening is formed in the iron plate, the air door main body is provided with the visual window, the air control oil cylinder for controlling the opening and closing of the air door main body is arranged at the top of the air door main body, a button box for controlling the air control oil cylinder is arranged on the iron plate, red and green buttons are arranged on the button box, and a pressure relief valve capable of being manually pulled is arranged beside the button box. The rapid air door adopts the self compressed air of the mine as power, thereby reducing the labor intensity.

Description

Quick air door for underground coal mine

Technical Field

The utility model relates to the technical field of coal mine air doors, in particular to a fast air door for a well engineering coal mine.

Background

Dampers are an integral part of the underground coal mine ventilation system and are also important safety infrastructures. The quick air door is a novel air door for standardized mine construction, and achieves the purpose of mine tunnel air flow blocking and intelligent ventilation management on the premise of ensuring normal traffic of pedestrians and transportation. However, the existing air door is a common balance air door, in the construction process of the air door, about 6000 bricks, 6 square cement, 18 square sand and 6 people per shift are consumed on average, 7 shifts are required to be constructed, 42 shifts are required, and after the construction is completed, the air door is influenced by mine pressure, wall skin is easy to fall off, a door frame is easy to deform, the air door is not good, and frequent maintenance is required.

Disclosure of Invention

Aiming at the technical defects, the utility model aims to provide a rapid air door for underground coal mines, which solves the problem that the conventional air door is influenced by mine pressure and needs frequent maintenance.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a rapid air door for a well engineering coal mine, which comprises a bracket, an iron plate, a door frame, an air control oil cylinder, an air door main body and a visual window, wherein the iron plate is fixed on a roadway through an anchor rod, the bracket is fixed on the roadway through the anchor rod, the air door main body is arranged on a detachable bracket through the door frame, an air cylinder opening is formed in the iron plate, the air door main body is provided with the visual window, the air door main body top is provided with the air control oil cylinder for controlling the air door main body to open and close, the bracket is provided with a button box for controlling the air control oil cylinder, the button box is provided with red and green buttons, and a pressure relief valve capable of being manually pulled is arranged beside the button box.

Preferably, the mine ground air compressor is adopted to supply air to the underground air pressing pipeline, the air door air control box is connected to the underground air pressing pipeline through a pipeline and then connected to the air door air control box, and a connecting pipe is arranged on the air control box and connected to an air control oil cylinder fixed on the air door main body.

Preferably, the iron plate adopts an I-steel skeleton, and the steel plate is a skin.

The utility model has the beneficial effects that: the quick air door adopts the self compressed air of the mine as power, and the air door is pulled to be opened through the pneumatic control oil cylinder, so that the labor intensity is reduced; adopting I-steel as a framework, and adopting a steel plate as a skin to aim at severe and complex environmental conditions of a mine; the construction cost is reduced; the automatic locking of the two air doors is realized, and the short-circuit operation of a ventilation system in the process of pedestrians and transportation is effectively prevented; the air pressure unloading device is arranged, so that the air door can be smoothly opened when the air pressure of the roadway is large; the component assembly structure is adopted, and the component assembly structure can be repeatedly disassembled and assembled for repeated use.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural diagram of a fast damper for an underground coal mine according to an embodiment of the present utility model;

fig. 2 is a construction view of a general damper.

Reference numerals illustrate: 1. a bracket; 2. a door frame; 3, an air control oil cylinder; 4. a damper main body; 5. and a visual window.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment 1, as shown in fig. 1, a fast air door for underground coal mine comprises a bracket 1, an iron plate, a door frame 2, a pneumatic control oil cylinder 3, an air door main body 4 and a visual window 5, wherein the iron plate is fixed on a roadway through an anchor rod, the bracket 1 is fixed on the roadway through the anchor rod, the air door main body 4 is arranged on the detachable bracket 1 through the door frame 2, an air cylinder port is arranged on the iron plate, the visual window 5 is arranged on the air door main body 4, the pneumatic control oil cylinder 3 for controlling the opening and closing of the air door main body 4 is arranged at the top of the air door main body 4, a button box for controlling the pneumatic control oil cylinder 3 is arranged on the bracket 1, red and green buttons are arranged on the button box, and a pressure relief valve capable of being manually pulled is arranged beside the button box.

Further, the mine ground air compressor is adopted to supply air to the underground air pressing pipeline, the air door air control box is connected to the underground air pressing pipeline through a pipeline and then connected to the air door air control box, and a connecting pipe is arranged on the air control box and connected to the air control oil cylinder 3 fixed on the air door main body 4.

Furthermore, the iron plate adopts an I-shaped steel skeleton, and the steel plate is a skin.

When in installation

1. After the construction site ground is leveled, the door frame 2 is erected, personnel mutually cooperate to hold the air door, the air door frame 2 is fixed to the upper part by using 10# lead wires in a double-strand mode, 4 anchor rods of 1.2m-1.5m are respectively constructed on the two sides and the top bottom plate of the air door frame 2 to firmly fix the air door frame 2, the angle is calibrated by using a horizontal ruler when the door frame 2 is erected, and the horizontal frames are ensured to be parallel and the vertical frames are ensured to be vertical. The door frame 2 is mounted with a rear hanging door.

2. When the wall is constructed, the dry bricks are soaked in advance, the wall is built straight by using good side lines and horizontal lines, the phenomenon of bulging does not occur, the bricks are staggered in length, the stubble is tightly connected by not less than 1/4, the mortar joints are uniformly not less than 10mm, mortar is full, vertical joints are filled, horizontal joints are horizontal, and heavy joints, blind joints and empty joints do not occur.

3. When the wall is constructed, pipeline holes and cable holes are reserved on two sides, the reserved holes are sealed and plastered by using dry bricks, the sealing is tight, the distance between the pipeline holes and the bottom is greater than 1600mm, the distance between the cable holes and the bottom is greater than 1800mm, and the wall-penetrating cable is required to be provided with a wall-penetrating sheath, so that the sealing is tight.

4. After the air door is built, the inner surface and the outer surface of the air door are subjected to mortar plastering, the wall surface is plastered by cement mortar, the plastering thickness is not smaller than 10mm, and the plastering edge is not smaller than 100mm.

5. And finally, installing the pneumatic control oil cylinder 3, and performing a switching test after the pneumatic control oil cylinder is installed.

The construction of the quick air door needs to consume about 1500 bricks, 1.5 square cement and 4.5 Fang Sha, each class needs to construct 1 class for 6 persons, and the total cost of each construction is saved by 3 ten thousand.

From the aspect of standardization, the air door can be changed continuously along with the change of the section, the air door such as the falling of the wall skin of the air door, the deformation of the door frame and the like is effectively prevented, and the air door is convenient to recycle. Therefore, the quick air door has the characteristics of time saving, material saving and higher safety performance, and can effectively avoid the existence of temporary facilities and eliminate potential safety hazards.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (3)

1. The utility model provides a quick air door for underground coal mine, its characterized in that includes support, iron plate, door frame, pneumatic cylinder, air door main part, visual window, the iron plate passes through the stock to be fixed on the tunnel, the support passes through the stock to be fixed on the tunnel, the air door main part passes through the door frame to be set up on the detachable support, be provided with the wind nozzle on the iron plate, be provided with visual window in the air door main part, air door main part top is provided with the pneumatic cylinder of control air door main part switching, be provided with the button box of control pneumatic cylinder on the support, be provided with red, green button on the button box, the other relief valve that can manually pull open that is provided with of button box.

2. The rapid air door for an underground coal mine as claimed in claim 1, wherein the air door air control box is connected to the underground air pressure pipeline through a pipeline and then connected to the air control box of the air door, and a connecting pipe is arranged on the air control box and connected to an air control cylinder fixed on the air door main body.

3. The rapid air door for an underground coal mine as claimed in claim 1, wherein the iron plate adopts an I-shaped steel skeleton, and the steel plate is a skin.