Ventilation system for outward circulation of air in deep position of tunnel constructed through drilling and blasting method

Abstract

The utility model relates to the technical field of tunnel construction, in particular to a tunnel deep air outward circulation ventilation system for drilling and blasting method construction, which comprises a ventilation pipe, a ventilation mechanism is arranged in the ventilation pipe, the top of the ventilation pipe is fixedly connected with a mounting frame, and a controller is mounted on the front side of the ventilation pipe. A binding post is fixedly connected to the position, close to the controller, of the front face of the ventilation pipe. The ventilation mechanism comprises a partition plate fixedly connected to the interior of the ventilation pipe, and an air inlet fan is fixedly connected to the position, on the left side of the center of the interior of the ventilation pipe, of the top of the partition plate. The problem that normal operation of a system is affected due to the fact that a drilling and blasting method is generally used for existing tunnel construction and a large amount of dust is carried in air pumped outwards is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a ventilation system for circulating air outwards from deep inside a tunnel constructed by a drilling and blasting method. Background Art

[0002] The tunnel air outward circulation ventilation system is a device used for ventilation circulation during tunnel construction. However, the existing tunnel air outward circulation ventilation system still has shortcomings. Specifically, the existing tunnel construction generally uses the drilling and blasting method to carry out operations, and the air drawn out will carry a lot of dust, affecting the normal operation of the system.

[0003] Therefore, a ventilation system for circulating air outward from deep inside a tunnel constructed by drill and blast method is needed to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to provide a ventilation system for circulating air outward from deep in a tunnel constructed by drilling and blasting method, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A ventilation system for circulating air outward from deep in a tunnel constructed by drilling and blasting method, comprising a ventilation pipe, a ventilation mechanism is arranged inside the ventilation pipe, a mounting frame is fixedly connected to the top of the ventilation pipe, a controller is installed on the front of the ventilation pipe, and a terminal is fixedly connected to the front of the ventilation pipe near the controller;

[0007] The ventilation mechanism includes a partition fixedly connected to the interior of the ventilation duct, an inlet fan is fixedly connected to the top of the partition and on the left side of the center of the ventilation duct, an air inlet duct is fixedly connected to the interior of the partition away from the air inlet fan position, an exhaust fan is fixedly connected to the bottom of the ventilation duct and away from the air inlet duct, a mounting frame is fixedly connected to the bottom of the inner wall of the ventilation duct and close to the exhaust fan position, a filter is slidably connected to the interior of the mounting frame, a push-pull electromagnet is fixedly connected to the outer wall of the partition and the bottom of the inner wall of the ventilation duct and on the right side of the mounting frame, an impact block is fixedly connected to the outer wall of the push-pull electromagnet and close to the mounting frame position, a buffer pad is fixedly connected to the outer wall of the mounting frame, a dust box is fixedly connected to the bottom of the ventilation duct and on the left side of the mounting frame, a dust shield is fixedly connected to the upper part of the center of the dust box, and a sealing cover is installed at the bottom of the dust box.

[0008] As a preferred solution of the utility model, the ventilation duct and the mounting frame are both made of aluminum alloy, the ventilation duct is designed as a rectangular structure, and the connection method between the controller and the terminal is electrical connection.

[0009] As a preferred solution of the utility model, the partition, the installation frame, the dust collecting box and the dust shield are all made of aluminum alloy, and the air inlet pipe passes through the partition and extends to the outside of the ventilation pipe.

[0010] As a preferred solution of the utility model, the dust shield is designed as an L-shaped structure, and the air inlet duct, exhaust fan, filter, push-pull electromagnet and dust box are all provided with multiple groups. The mounting frame is installed at an angle in the ventilation duct, and the sealing cover is connected to the dust box by bolts.

[0011] As a preferred solution of the utility model, the buffer pad is made of silicone, and the connection between the impact block and the ventilation pipe and the impact block and the partition are both sliding connections.

[0012] As a preferred solution of the utility model, the partition is designed as an I-shaped structure, and the connection method between the inlet fan, the exhaust fan and the push-pull electromagnet and the controller is electrical connection.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, a ventilation system for circulating air outwards from deep in a tunnel constructed by drilling and blasting method is designed, a ventilation mechanism in the device is used for air circulation, a ventilation pipe is installed in the tunnel, a controller starts an inlet fan and an exhaust fan, the inlet fan sends fresh air from the outside into the ventilation pipe, the fresh air entering the ventilation pipe flows into the tunnel through the air inlet pipe, and at the same time the exhaust fan draws the dirty air in the tunnel into the ventilation pipe, thereby increasing the pressure difference between the tunnel and the air inlet pipe, so that the fresh air in the air inlet pipe can quickly flow into the tunnel, the dirty air in the ventilation pipe flows outwards through the filter screen, the filter screen will filter out most of the dust in the air, the filtered dust will slide down along the filter screen and slide onto the dust shield plate, the dust will continue to slide down along the dust shield plate and fall into the dust collecting box, so that the dust in the dirty air can be filtered out, thereby solving the problem that the existing tunnel construction generally uses the drilling and blasting method for operation, the air drawn out will carry a large amount of dust, affecting the normal operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a front cross-sectional view of the utility model;

[0017] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0018] In the figure: 1. ventilation duct; 2. ventilation mechanism; 3. mounting frame; 4. controller; 5. terminal; 201. partition; 202. air inlet fan; 203. air inlet duct; 204. exhaust fan; 205. mounting frame; 206. filter screen; 207. push-pull electromagnet; 208. impact block; 209. buffer pad; 210. dust box; 211. dust shield; 212. sealing cover. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a central element. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0024] A ventilation system for circulating air outward from deep in a tunnel constructed by drilling and blasting method, comprising a ventilation pipe 1, a ventilation mechanism 2 is arranged inside the ventilation pipe 1, a mounting frame 3 is fixedly connected to the top of the ventilation pipe 1, a controller 4 is installed on the front of the ventilation pipe 1, and a terminal 5 is fixedly connected to the front of the ventilation pipe 1 and near the controller 4;

[0025] The ventilation pipe 1 and the mounting frame 3 are both made of aluminum alloy, the ventilation pipe 1 is designed as a rectangular structure, and the connection method between the controller 4 and the terminal 5 is electrical connection;

[0026] In this embodiment, reference Figure 2 and Figure 3 The ventilation mechanism 2 includes a partition 201 fixedly connected to the inside of the ventilation pipe 1, an inlet fan 202 is fixedly connected to the top of the partition 201 and on the left side of the center of the ventilation pipe 1, an inlet pipe 203 is fixedly connected to the inside of the partition 201 away from the inlet fan 202, an exhaust fan 204 is fixedly connected to the bottom of the ventilation pipe 1 and away from the inlet pipe 203, and a mounting frame 205 is fixedly connected to the bottom of the inner wall of the ventilation pipe 1 and close to the exhaust fan 204, and a filter 206 is slidably connected to the inside of the mounting frame 205 The outer wall of the partition 201 and the bottom of the inner wall of the ventilation pipe 1 and on the right side of the installation frame 205 are fixedly connected with a push-pull electromagnet 207, the outer wall of the push-pull electromagnet 207 and a position close to the installation frame 205 are fixedly connected with a collision block 208, the outer wall of the installation frame 205 is fixedly connected with a buffer pad 209, the bottom of the ventilation pipe 1 and on the left side of the installation frame 205 are fixedly connected with a dust box 210, the upper part of the inner center of the dust box 210 is fixedly connected with a dust shield plate 211, and the bottom of the dust box 210 is installed with a sealing cover 212;

[0027] The partition 201, the installation frame 205, the dust box 210 and the dust shield 211 are all made of aluminum alloy. The air inlet pipe 203 passes through the partition 201 and extends to the outside of the ventilation pipe 1. The dust shield 211 is an L-shaped structure. The air inlet pipe 203, the exhaust fan 204, the filter 206, the push-pull electromagnet 207 and the dust box 210 are all provided with multiple groups. The installation frame 205 is tiltedly installed in the ventilation pipe 1. The sealing cover 212 is connected to the dust box 210 by bolts. The buffer pad 209 is made of silicone. The connection method of the impact block 208 and the ventilation pipe 1 and the impact block 208 and the partition 201 are both sliding connections. The partition 201 is an I-shaped structure. The air inlet fan 202, the exhaust fan 204 and the push-pull electromagnet 207 are connected to The controller 4 is connected in an electrical manner. The controller 4 starts the inlet fan 202 and the exhaust fan 204. The inlet fan 202 delivers fresh air from the outside into the ventilation duct 1. The fresh air entering the ventilation duct 1 flows into the tunnel through the inlet pipe 203. At the same time, the exhaust fan 204 draws the dirty air in the tunnel into the ventilation duct 1, thereby increasing the pressure difference between the tunnel and the inlet pipe 203, so that the fresh air in the inlet pipe 203 can quickly flow into the tunnel. The dirty air in the ventilation duct 1 flows outward through the filter 206. The filter 206 will filter out most of the dust in the air. The filtered dust will slide downward along the filter 206 and slide onto the dust shield 211. The dust continues to slide downward along the dust shield 211 and falls into the dust box 210.

[0028] The working process of the utility model: when the ventilation system for circulating air outwards from deep in a tunnel constructed by drilling and blasting method designed by the present invention is in operation, the ventilation pipe 1 is installed in the tunnel, the controller 4 starts the inlet fan 202 and the exhaust fan 204, the inlet fan 202 sends fresh air from the outside into the ventilation pipe 1, and the fresh air entering the ventilation pipe 1 flows into the tunnel through the inlet pipe 203. At the same time, the exhaust fan 204 draws the dirty air in the tunnel into the ventilation pipe 1, thereby increasing the pressure difference between the tunnel and the inlet pipe 203, so that the fresh air in the inlet pipe 203 can quickly flow into the tunnel, and the dirty air in the ventilation pipe 1 flows outwards through the filter 206, and the filter 206 will filter out the dirty air. Most of the dust in the air, the filtered dust will slide downward along the filter 206 and slide onto the dust shield 211, the dust will continue to slide downward along the dust shield 211 and fall into the dust box 210, when too much dust adheres to the filter 206, the controller 4 starts the push-pull electromagnet 207, the push-pull electromagnet 207 will drive the impact block 208 to impact the mounting frame 205, so that the filter 206 in the mounting frame 205 vibrates, and the dust attached to the filter 206 is shaken off, when the dust in the dust box 210 accumulates too much, remove the sealing cover 212, clean the dust in the dust box 210 and then install the sealing cover 212 in the dust box 210.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ventilation system for circulating air from deep inside a tunnel constructed by drill and blast method, comprising a ventilation pipe (1), Features: A ventilation mechanism (2) is arranged inside the ventilation pipe (1); a mounting frame (3) is fixedly connected to the top of the ventilation pipe (1); a controller (4) is installed on the front of the ventilation pipe (1); and a terminal (5) is fixedly connected to the front of the ventilation pipe (1) and close to the controller (4); The ventilation mechanism (2) comprises a partition (201) fixedly connected to the inside of the ventilation pipe (1); an inlet fan (202) is fixedly connected to the top of the partition (201) and on the left side of the center of the ventilation pipe (1); an inlet pipe (203) is fixedly connected to the inside of the partition (201) at a position away from the inlet fan (202); an exhaust fan (204) is fixedly connected to the bottom of the ventilation pipe (1) and at a position away from the inlet pipe (203); a mounting frame (205) is fixedly connected to the bottom of the inner wall of the ventilation pipe (1) and at a position close to the exhaust fan (204); and a filter screen (206) is slidably connected to the inside of the mounting frame (205). The outer wall of the partition (201) and the bottom of the inner wall of the ventilation pipe (1) and on the right side of the installation frame (205) are fixedly connected with a push-pull electromagnet (207); the outer wall of the push-pull electromagnet (207) and a position close to the installation frame (205) are fixedly connected with an impact block (208); the outer wall of the installation frame (205) is fixedly connected with a buffer pad (209); the bottom of the ventilation pipe (1) and on the left side of the installation frame (205) are fixedly connected with a dust box (210); the dust shield plate (211) is fixedly connected to the upper part of the center of the dust box (210); and a sealing cover (212) is installed at the bottom of the dust box (210).

2. A ventilation system for circulating air outward from deep inside a tunnel constructed by drill and blast method according to claim 1, Features: The ventilation pipe (1) and the mounting frame (3) are both made of aluminum alloy; the ventilation pipe (1) is designed as a rectangular structure; and the controller (4) and the terminal (5) are connected in an electrical manner.

3. A ventilation system for circulating air outward from deep inside a tunnel constructed by drill and blast method according to claim 1, Features: The partition plate (201), the mounting frame (205), the dust collecting box (210) and the dust shield (211) are all made of aluminum alloy, and the air inlet pipe (203) passes through the partition plate (201) and extends to the outside of the ventilation pipe (1).

4. A ventilation system for circulating air outward from deep inside a tunnel constructed by drill and blast method according to claim 1, Features: The dust shield (211) is of L-shaped structural design; the air inlet pipe (203), the exhaust fan (204), the filter (206), the push-pull electromagnet (207) and the dust box (210) are all provided in multiple groups; the installation frame (205) is installed obliquely in the ventilation pipe (1); and the sealing cover (212) is connected to the dust box (210) by bolts.

5. A ventilation system for circulating air outward from deep inside a tunnel constructed by drill and blast method according to claim 1, Features: The buffer pad (209) is made of silica gel, and the connection modes of the impact block (208) and the ventilation pipe (1) as well as the impact block (208) and the partition plate (201) are all sliding connections.

6. A ventilation system for circulating air outward from deep inside a tunnel constructed by drill and blast method according to claim 1, Features: The partition (201) is designed as an I-shaped structure, and the connection method between the air inlet fan (202), the exhaust fan (204) and the push-pull type electromagnet (207) and the controller (4) is electrical connection.

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