Three-way air door for non-coal mine mining

Abstract

The utility model relates to the technical field of mining production, in particular to a three-way air door for non-coal mine mining, and aims to solve the problems that in the drift mining process of a non-coal mine at present, the overall dispatching efficiency of mining is greatly influenced due to the fact that the three-way air door which is generally adopted is limited in ventilation capacity, short in drift length and large in drift number. An air door on one side of the three-way air door is connected with an exhaust fan through a hard air duct, two air doors on the other side of the three-way air door are connected into two mechanical mining access paths through hard air ducts respectively, ventilation air paths of the three-way air door are switched in real time through movement of the air blocking door, alternate ventilation and dust removal of the two access paths are achieved, the length of the access paths can be increased, and the service life of the three-way air door is prolonged. And the wind blocking door is driven by external power to rotate and displace under the action of the movable screw rod, so that in the long-route mechanical mining process, the machine retreating distance during equipment transition is effectively shortened, and the overall mining efficiency and management scientificity are further improved.

Description

A three-way ventilation door for non-coal mining Technical Field

[0001] This utility model relates to the field of mining production technology, specifically to a three-ventilation door for non-coal mining. Background Technology

[0002] Currently, when non-coal mines use the approach method to mine ore bodies, it is necessary to set up cross-vein roadways and along-vein roadways within the ore body, and then set up approach roadways perpendicular to these cross-vein and along-vein roadways. Mining is completed within these approach roadways. However, due to the large number of approach roadways, it is not conducive to setting up through ventilation circuits. As a result, ventilation in the approach roadways usually adopts diffusion ventilation, which relies on the turbulent diffusion effect of fresh airflow to clean the working face. Diffusion ventilation is only suitable for short-distance single-face working faces and is not conducive to increasing the length of the approach roadway, thus limiting the length of the mining approach roadway. For approach-based mechanized mining, when roadheaders and other mechanized mining equipment are used for safety assurance procedures such as anchor spraying support and skidding operations, they need to withdraw from the approach roadway and move between approach roadways for mining. As the length of the approach roadway increases, the withdrawal and relocation time increases, significantly reducing the effective working time of the mining equipment. Therefore, the main limitations of non-coal mine access mining at this stage are: the access length is relatively short due to the limited ventilation capacity of the ventilation doors, and the large number of accesses makes mining scheduling and management difficult. Furthermore, as the access length increases, the time for mining equipment to be taken out and moved to the site increases, which greatly prolongs the waiting time for supporting processes such as anchor spraying support and skidding operations, thereby affecting the overall production efficiency of mining. Summary of the Invention

[0003] This invention provides a three-way ventilation door for non-coal mining to solve the problems mentioned above.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A three-way ventilation door for non-coal mining includes a three-way body, a short side air inlet on one side of the three-way body, and multiple long side air inlets on the other side of the three-way body. A windbreak door is slidably provided on the three-way body between the short side air inlets and the long side air inlets.

[0006] Furthermore, a sliding groove is provided on the body of the three-way valve, and a screw is rotatably installed in the sliding groove. Multiple nut slider bases are fixedly provided at the bottom of the windshield, and the nut slider bases are all sleeved and connected to the screw.

[0007] Furthermore, a rotating handle is provided on one side of the screw extending from the tee body, and the rotating handle and the screw are connected by a driven wheel.

[0008] This utility model has the following beneficial effects:

[0009] This utility model provides a three-ventilation door for non-coal mining. One side of the door is connected to a rigid ventilation duct and an exhaust fan, while the other two doors are connected to two mechanical mining routes via rigid ventilation ducts. By moving the door, the ventilation path of the three-ventilation door can be switched in real time, achieving alternating ventilation and dust removal for the two routes. This helps to extend the route length, thereby simplifying the mining production system. Furthermore, the door is driven and displaced by an external power source under the action of a moving screw, effectively shortening the equipment relocation distance during long-route mechanical mining. This improves the overall efficiency and scientific management of mining, solving the problem that the commonly used three-ventilation doors in non-coal mining routes have limited ventilation capacity and short and numerous routes, ultimately significantly impacting the overall scheduling efficiency of mining. Attached Figure Description

[0010] Figure 1 is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 is a schematic diagram of the windbreak door structure of this utility model.

[0012] The meanings of the reference numerals in the attached figures are as follows:

[0013] 1. Three-way body; 2. Windshield; 3. Windshield moving mechanism; 101. Short side air vent; 102. Long side air vent; 103. Sliding groove; 201. Windshield body; 202. Nut slider base; 301. Screw; 302. Rotating handle; 303. Driven wheel. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] As shown in Figures 1-2, a three-way ventilation door for non-coal mining includes a three-way body 1, a short side air inlet 101 on one side of the three-way body 1, and a plurality of long side air inlets 102 on the other side of the three-way body 1. A windbreak door 2 is slidably provided on the three-way body 1 between the short side air inlets 101 and the long side air inlets 102.

[0016] The three-way body 1 has a sliding groove 103, and a screw 301 is rotatably installed in the sliding groove 103. The bottom of the windshield 2 is fixedly provided with multiple nut slider bases 202, and the nut slider bases 202 are all sleeved and connected to the screw 301.

[0017] A rotating handle 302 is provided on one side of the screw 301 extending out of the tee body 1, and the rotating handle 302 and the screw 301 are connected by a driven wheel 303.

[0018] In practical use, the three-way body 1 of the mine ventilation door is a trapezoidal hollow structure. One circular through-hole is provided at one short side end, forming a short-side air vent 101, and two circular through-holes are provided at one long side end, forming two long-side air vents 102. Simultaneously, sliding grooves 103 are provided at the top and bottom of the three-way body 1 near the long-side air vents 102. A windbreak door 2 is installed within the sliding groove 103. The size of the windbreak door body 201 is sufficient to completely cover one long-side air vent 102. A nut-slider base 202 is provided at the lower end of the windbreak door body 201. The width of the nut-slider base 202... Consistent with the sliding groove 103 at the bottom of the tee body 1, the width of the windshield body 201 is consistent with the sliding groove 103 at the top of the tee body 1. The moving screw 301 of the windshield moving mechanism 3 passes through the nut slider base 202 of the windshield 2, and the two are connected by a thread, so that when the moving screw 301 is rotated, the windshield 2 moves in the sliding groove 103. The moving screw 301 is provided with a rotating handle 302 and a driven wheel 303 on the outside of the tee body 1, so as to realize the purpose of manually moving the windshield 2 and externally driving the driven wheel 303 to move the windshield 2.

Claims

1. A three-way air door for non-coal mine mining, comprising a three-way body (1), characterized in that: One side of the three-way body (1) is provided with a short side air vent (101), and the other side of the three-way body (1) is provided with multiple long side air vents (102). A windbreak door (2) is provided on the three-way body (1) between the short side air vent (101) and the long side air vents (102).

2. The three-way air door for non-coal mine according to claim 1, characterized in that: The three-way body (1) is provided with a sliding groove (103), and a screw (301) is rotatably provided in the sliding groove (103). The bottom of the windshield (2) is fixedly provided with multiple nut slider bases (202), and the nut slider bases (202) are all sleeved and connected to the screw (301).

3. The triple vent door for non-coal mine according to claim 2, characterized in that: The screw (301) extends out of the tee body (1) and is provided with a rotating handle (302), and the rotating handle (302) and the screw (301) are connected by a driven wheel (303).

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