Tunnel pulse suction type dust removal construction method

Abstract

The application discloses a tunnel pulse suction type dust removal construction method. When tunnel face operation is carried out, a movable rack is moved to a suitable position, then a slidable soft wind wall is closed to generate a closed space, and a dust suction equipment is started. Under the air flow circulation, dust is scattered to the vicinity of the dust suction equipment, and the dust suction equipment sucks the dust into the filter cartridge type filter core for adsorption through the air inlet. The air is separated from the dust through the electromagnetic pulse, the clean gas is discharged from the equipment air outlet, the dust is settled at the bottom of the machine, and the dust is discharged through the dust outlet and collected by a plastic bag with adhesive paper for unified treatment. When there is no vehicle in and out of the tunnel, the slidable soft wind wall can be lowered to ensure that the dust in the front part of the tunnel does not affect the construction of the rear part, and the rack can be placed flexibly according to the construction link.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel construction, more particularly, to a tunnel pulse suction type dust removal construction method. BACKGROUND

[0002] With the vigorous development of China's economic construction, the importance of transportation is self-evident, and high-speed railway and tunnel as an important transportation mode, its construction is also an indispensable important link. In the process of tunnel excavation, a large amount of dust will be produced, because the space in the tunnel is relatively small, the wind circulation cannot make the dust settle quickly, thereby causing harm to the physical health of the on-site workers and the driving safety of the construction vehicles, and waiting for the dust to settle naturally will also delay the construction period and increase the construction cost. In the prior art, when dust removal is carried out during tunnel construction, the water spraying method is often directly used for rapid dust removal.

[0003] However, the present application inventors found in the research that the above prior art has the following disadvantages:

[0004] 1. The water spraying efficiency is low, it is difficult to cover comprehensively, and it cannot achieve good effect for the operation that continuously produces dust.

[0005] 2. The water spraying will cause the tunnel to be wet, which is not conducive to the personnel operation, and increases the difficulty of construction and the danger of personnel.

[0006] Therefore, it is urgent to use a suction type dust removal construction method to reduce the harm of dust produced in the construction process. SUMMARY

[0007] 1. Technical problem to be solved

[0008] In view of the problems existing in the prior art, the purpose of the present application is to provide a tunnel pulse suction type dust removal construction method. In the present application, when the tunnel face operation is carried out, the movable rack is moved to a suitable position, then the slidable soft wind wall is closed to form a closed space, and the dust suction equipment is turned on. Under the action of air flow circulation, the dust on the tunnel face is scattered to the vicinity of the dust suction equipment, the dust is sucked into the dust suction equipment through the air inlet of the dust suction equipment, and the dust is adsorbed in the filter cartridge type filter core. The clean gas is discharged from the air outlet of the equipment, and the dust is settled at the bottom of the machine and discharged through the dust outlet. The dust is collected in a plastic bag with adhesive paper and uniformly treated. When there is no vehicle in and out of the tunnel, the slidable soft wind wall can be lowered to ensure that the dust in the front part of the tunnel does not affect the construction of the rear part, and the rack can be placed flexibly according to the construction link.

[0009] 2. Technical scheme

[0010] In order to solve the above problems, the present application adopts the following technical scheme.

[0011] The tunnel pulse suction type dust removal construction method comprises the following steps:

[0012] S1, during the tunnel face operation, the movable rack is moved to a suitable position, the slidable soft wind wall is closed to form a closed space, and the dust removal equipment is turned on, the dust is dispersed to the vicinity of the dust removal equipment under the air circulation of the tunnel face;

[0013] S2, when the dust floats to the vicinity of the dust removal equipment, the dust is introduced into the suction by the air inlet pipe in the adsorption equipment, and the air is sent into the interior through the gas conveying pipe, so that the air and the dust are separated, the clean gas is discharged from the clean air outlet of the equipment, and the dust is settled at the bottom of the machine and discharged through the dust outlet;

[0014] S3, after the treated dust is discharged through the dust outlet, the plastic bag with adhesive tape is collected below the dust outlet for subsequent treatment.

[0015] Further, the movable soft wind wall is installed on the four side end faces of the rack, the dust removal equipment is installed on the upper end of the rack, the dust removal equipment comprises a dust collector box installed on the upper end of the slidable soft wind wall, a plurality of air inlet pipes are embedded on the right end of the dust collector box, a motor is installed on the left end of the dust collector box, a sealing ring is arranged at the connection between the dust collector box and the motor, a wind belt is installed on the outer end of the motor, a dust outlet is formed on the lower end of the dust collector box, a first gas cylinder is installed between the inner walls of the dust collector box, and a gas dust separation assembly is arranged in the dust collector box.

[0016] Further, the gas dust separation assembly comprises a protective shell installed between the inner walls of the dust collector box, the protective shell is located below the first gas cylinder, a through hole is formed in the right end of the protective shell and communicates with the air inlet pipe, a gas conveying pipe is installed on the inner top end of the protective shell, a plurality of uniformly distributed filter cartridge type filter elements are installed on the lower end of the gas conveying pipe, an electromagnetic pulse generator and a second gas cylinder are installed on the side end of the gas conveying pipe, a rectangular cavity is formed in the top end of the protective shell and communicates with the second gas cylinder, a clean air outlet is formed in the top left end of the protective shell and communicates with the rectangular cavity, the protective shell is in communication with the dust outlet, and an air outlet pipe is inserted into the left end of the protective shell, the air outlet pipe penetrates the outer end of the dust collector box and communicates with the clean air outlet.

[0017] Further, the top of the rack is provided with a mounting pit, the mounting pit is matched with the lower end of the dust collector box, and a shock absorber is installed between the upper and lower inner walls of the mounting pit and the dust collector box.

[0018] Further, the bottom of the rack is provided with a roller, and the roller is provided with a locking universal wheel.

[0019] Further, the top front end of the bench is provided with two support steel bars and a sliding groove with a pulley inside, and the slidable soft wind wall is installed on the surface of the pulley.

[0020] Further, a rubber tube is installed at the outer end of the air inlet pipe, and the rubber tube is made of silicone polymer material.

[0021] Further, the number of air inlet pipes is four, and they are evenly distributed at the arch position of the dust collector box.

[0022] 3. Beneficial effects

[0023] Compared with the prior art, the advantages of the present application are:

[0024] (1) The scheme installs a steel cylinder and a slidable soft wind wall at the top front end of the trolley, which can close the front working space as much as possible when there is no construction vehicle passing through the bench, reduce the escape of dust, promote air circulation, make dust enter the dust removal device to the greatest extent, and further reduce the dust in the rear working environment, ensuring personnel health and driving vision.

[0025] (2) The use of the dust collector box closed container can concentrate the dust together, reduce the diffusion of the dust, and use the electromagnetic pulse device to better separate the dust and air, improve the working environment, and improve the environmental protection disposal capacity and the strength of environmental protection measures.

[0026] (3) The scheme adopts four air inlets evenly distributed at the arch of the dust inlet dust collection measure of the dust collector, which greatly improves the dust collection efficiency and range, ensures the effect of the device, and achieves the expected effect.

[0027] (4) The scheme can timely and quickly remove dust when blasting and mechanical excavation, which can speed up the dust removal, reduce the high-power ventilation time of the main fan, speed up the construction efficiency, and reduce the electricity cost. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structure cross-sectional view of a tunnel pulse suction type dust removal structure of the present application;

[0029] Figure 2 is a structure longitudinal sectional view of a tunnel pulse suction type dust removal structure of the present application;

[0030] Figure 3 is a dust removal equipment principle schematic view of a tunnel pulse suction type dust removal structure of the present application.

[0031] Explanation of reference numerals in the drawings:

[0032] 1. Sliding flexible air wall; 2. Air duct; 3. Air inlet pipe; 4. Air outlet pipe; 5. Dust collector box; 6. Motor; 7. First air cylinder; 8. Sealing ring; 9. Dust outlet; 10. Purified air outlet; 11. Cartridge filter element; 12. Electromagnetic pulse generator; 13. Second air cylinder; 14. Computer board controller. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] Example:

[0035] like Figures 1-3 As shown, the tunnel pulse suction dust removal construction method includes the following steps:

[0036] S1. When working at the tunnel face, move the platform to a suitable position, close the sliding soft air wall 1 to create a sealed space, and turn on the dust collection equipment. Under the airflow circulation, the dust at the tunnel face will drift to the vicinity of the dust collection equipment.

[0037] S2. When dust floats near the dust collection equipment, the dust is drawn in by the air inlet pipe 3 in the adsorption equipment and air is delivered into the interior through the air supply pipe, thereby achieving the separation of air and dust. Clean gas is discharged from the purified air outlet 10 of the equipment, while the dust is settled to the bottom of the machine and discharged through the dust outlet 9.

[0038] S3. After the treated dust is discharged through the dust outlet 9, it is collected in a plastic bag with adhesive tape below the dust outlet 9 and then processed in a unified manner.

[0039] like Figures 1-3 As shown, the platform is a movable installation platform that is assembled at the rear of the construction trolley at the tunnel face. Sufficient space is reserved for vehicle passage when designing the platform, and an installation slot is reserved on the top of the platform to facilitate the installation of various equipment and vibration damping measures.

[0040] In the embodiments of this application, a sliding flexible air wall 1 is installed on all four sides of the platform. A dust collection device is installed on the upper end of the platform. The dust collection device includes a dust collector box 5 installed on the upper end of the sliding flexible air wall 1. Multiple air inlet pipes 3 are embedded on the right end of the dust collector box 5. A motor 6 is installed on the left end of the dust collector box 5. A sealing ring 8 is provided at the connection between the dust collector box 5 and the motor 6. A wind belt 2 is installed on the outer end of the motor 6. A dust outlet 9 is opened at the lower end of the dust collector box 5. A first gas cylinder 7 is installed between the inner walls of the dust collector box 5. An air-dust separation component is provided inside the dust collector box 5.

[0041] As Figure 3 shown, the air-dust separation assembly includes a protective shell mounted between the inner walls of the dust collector box 5, which is located below the first gas cylinder 7, and a through hole is formed in the right end of the protective shell, which is in communication with the air inlet pipe 3, and a gas conveying pipe is mounted on the inner top end of the protective shell, and a plurality of uniformly distributed filter cartridge type filter cartridges 11 are mounted on the lower end of the gas conveying pipe, and an electromagnetic pulse generator 12 and a second gas cylinder 13 are mounted on the side end of the gas conveying pipe, and a rectangular cavity is formed in the top end of the protective shell, which is in communication with the second gas cylinder 13, and a purified air outlet 10 is formed in the top surface of the left end of the protective shell, which is in communication with the rectangular cavity, and the lower end of the protective shell is in communication with the dust outlet 9, and the left end of the protective shell is inserted with the air outlet pipe 4, which penetrates the outer end of the dust collector box 5 and is in communication with the purified air outlet 10.

[0042] When the tunnel face operation is performed, the movable rack is moved to the appropriate position, then the slidable soft wind wall 1 is closed to form a closed space, and the dust suction equipment is turned on, the tunnel face is under the action of air circulation, the dust is scattered near the dust suction equipment, the dust is sucked into the filter cartridge type filter cartridge 11 through the air inlet 3 of the dust suction equipment, and the dust is separated from the air through the electromagnetic pulse of the pulse generator 12, and the clean gas is discharged from the air outlet 10 of the equipment, and the dust is settled at the bottom of the machine and discharged through the dust outlet 9. The dust is collected in a plastic bag with adhesive paper and is uniformly treated. When there is no vehicle in and out of the tunnel, the slidable soft wind wall 1 can be lowered to ensure that the dust in the front part of the tunnel does not affect the construction of the rear part, and the rack can be placed flexibly according to the construction link.

[0043] As Figure 1 shown, the top of the rack is provided with a mounting pit, which is matched with the lower end of the dust collector box 5, and a shock absorber is mounted between the upper and lower inner walls of the dust collector box 5.

[0044] In the use process of the scheme, since the mounting pit is formed in the upper part of the rack and the shock absorber is mounted inside, when the dust collector box 5 is placed in the mounting pit of the rack, the stability of the operation and use of the structure is facilitated, and the vibration range of each part of the rack is limited and the frequency of vibration is reduced.

[0045] As Figure 2 shown, the bottom of the rack is provided with a roller, which is provided with a locking universal wheel.

[0046] The movable installation rack of the scheme is assembled to ensure the clearance size for the passage of construction vehicles.

[0047] As shown in Figure 2 The top front end of the rack is provided with two supporting steel bars and a sliding chute with a pulley inside, and the slidable soft wind wall 1 is installed on the surface of the pulley.

[0048] In the use process of the scheme, when the slidable soft wind wall 1 needs to be unfolded or stored, the two ends of the slidable soft wind wall 1 are fixed in the pulley inside the sliding chute, so that the slidable soft wind wall 1 can be folded and unfolded under the relative movement of the pulley.

[0049] As shown in Figures 1-3 The outer end of the air inlet pipe 3 is provided with a rubber pipe made of siloxane polymer material.

[0050] In the use process of the scheme, by installing a rubber pipe with good strength on the air inlet 3, the shape of the air inlet 3 can be ensured to be stable, and the dust can be easily collected and treated.

[0051] As shown in Figures 2-3 The number of air inlet pipes 3 is four, which are evenly distributed at the arch position of the dust collector box 5.

[0052] In the use process of the scheme, by evenly distributing four air inlets at the arch of the dust collector, the dust collection efficiency and range can be greatly improved, the effect of the equipment can be ensured, and the expected effect can be achieved.

[0053] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and improvement concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A tunnel pulse suction dust removal construction method, characterized in that, Includes the following steps: S1. When working at the tunnel face, move the platform to a suitable position, close the sliding soft wind wall (1) to create a closed space, and turn on the dust collection equipment at the same time. Under the airflow circulation, the dust at the tunnel face will drift to the vicinity of the dust collection equipment. S2. When dust floats near the dust collection equipment, the dust is drawn in by the air inlet pipe (3) in the adsorption equipment and air is sent into the interior through the air delivery pipe, thereby achieving the separation of air and dust. Clean gas is discharged from the purified air outlet (10) of the equipment, while the dust is settled at the bottom of the machine and discharged through the dust outlet (9). S3. After the treated dust is discharged through the dust outlet (9), it is collected in a plastic bag with adhesive tape below the dust outlet (9) and then processed in a unified manner. Sliding flexible air walls (1) are installed on all four sides of the platform. A dust collection device is installed on the upper end of the platform. The dust collection device includes a dust collector box (5) installed on the upper end of the sliding flexible air wall (1). Multiple air inlet pipes (3) are embedded on the right end of the dust collector box (5). A motor (6) is installed on the left end of the dust collector box (5). A sealing ring (8) is provided at the connection between the dust collector box (5) and the motor (6). A wind belt (2) is installed on the outer end of the motor (6). A dust outlet (9) is opened at the lower end of the dust collector box (5). A first gas cylinder (7) is installed between the inner walls of the dust collector box (5). An air-dust separation component is provided inside the dust collector box (5). The top front end of the platform is provided with two supporting steel bars and a sliding channel with a pulley inside, and the sliding soft wind wall (1) is installed on the pulley surface. During use, when it is necessary to unfold or store the sliding soft wind wall (1), since the two ends of the sliding soft wind wall (1) are fixed to the pulleys inside the sliding channel, the sliding soft wind wall (1) can be unfolded and retracted under the relative movement of the pulleys. The air-dust separation assembly includes a protective shell installed between the inner walls of the dust collector box (5). The protective shell is located below the first gas cylinder (7). The right end of the protective shell has a through hole that communicates with the air inlet pipe (3). The top inner end of the protective shell is equipped with an air supply pipe. The lower end of the air supply pipe is equipped with multiple uniformly distributed filter cartridges (11). The side end of the air supply pipe is equipped with an electromagnetic pulse generator (12) and a second gas cylinder (13). The top end of the protective shell has a rectangular cavity that communicates with the second gas cylinder (13). The left side of the top surface of the protective shell has a purified air outlet (10) that communicates with the rectangular cavity. The lower end of the protective shell communicates with the dust outlet (9). The left side of the protective shell has an air outlet pipe (4) that passes through the outer end of the dust collector box (5) and communicates with the purified air outlet (10).

2. The tunnel pulse suction dust removal construction method according to claim 1, characterized in that: The top of the platform is provided with an installation pit, which matches the lower end of the dust collector box (5). Shock absorbers are installed between the installation pit and the upper and lower inner walls of the dust collector box (5).

3. The tunnel pulse suction dust removal construction method according to claim 1, characterized in that: The bottom of the platform is equipped with rollers, which are locking casters.

4. The tunnel pulse suction dust removal construction method according to claim 1, characterized in that: The air inlet pipe (3) is fitted with a rubber hose at its outer end, and the rubber hose is made of siloxane polymer material.

5. The tunnel pulse suction dust removal construction method according to claim 1, characterized in that: The number of air inlet pipes (3) is four, and they are evenly distributed in the arch position of the dust collector box (5).

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