Tunnel construction dust fall facility

Abstract

The invention belongs to the technical field of tunnel construction, and particularly relates to a tunnel construction dust falling facility which comprises a frame, a dust falling box is mounted at the top end of the frame, a box cover is arranged at the top end of the dust falling box, a first air pump is arranged at the top end of the box cover, and the output end of the first air pump penetrates into the dust falling box; a ventilation piece is arranged at the lowermost part in the dust falling box, and the air inlet end of the ventilation piece communicates with a first guide pipe; according to the dust falling facility for tunnel construction, the sealing cover and the air spraying head are arranged; during use, the top end of the filter is partially sealed by the sealing cover, and then airflow is sprayed out from the lower part through the jet head; dust blocked on the filter is ejected out under the action of airflow in the opposite direction, and the filter is fully dredged along with synchronous rotation of the jet head and the sealing cover; and regular disassembly and cleaning are not needed, and dust falling treatment on the tunnel does not need to be stopped during dredging, so that the dust falling efficiency of the tunnel is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction, in particular to a tunnel construction dust reduction facility. Background Art

[0002] A tunnel is an engineering structure buried underground. It uses underground space to build passages. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels, and military tunnels. The construction of tunnels increases the convenience of transportation. Dust is inevitably generated during tunnel construction. For example, a large amount of dust is generated during drilling, blasting, shoveling and other operations. Dust is also generated when excavators, bulldozers, loaders, etc. are in operation. In addition, vehicle operation, exhaust emissions, tunnel maintenance, etc. also generate dust.

[0003] Workers in tunnels are exposed to dust for a long time and are prone to lung diseases such as pneumoconiosis and silicosis. Therefore, dust reduction treatment is needed in the tunnel. Dust reduction can be carried out by sprinkling water, ventilation, and using dust removal vehicles in the tunnel. Generally, dust removal vehicles are selected for convenience. Specifically, when dust reduction is carried out by dust removal vehicles, the air pump on the dust removal vehicle absorbs the air in the tunnel, and then filters it through filter structures such as filter bags or filter plates. In actual operation, the filter structure is prone to blockage after a period of use, so it needs to be dismantled and cleaned regularly, which is very inconvenient.

[0004] To this end, the present invention provides a tunnel construction dust reduction facility. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a tunnel construction dust reduction facility described in the present invention comprises a frame, a dust reduction box is installed at the top of the frame, a box cover is arranged at the top of the dust reduction box, a first air pump is arranged at the top of the box cover, and the output end of the first air pump passes through the interior of the dust reduction box; a vent is arranged at the bottom of the interior of the dust reduction box, the air inlet end of the vent is connected with a first conduit, the first conduit passes through the outside of the dust reduction box, the first conduit outside the dust reduction box is externally connected to a second air pump, and the second air pump is installed at the top of the frame; the air outlet pipe of the vent is connected with a second conduit, and the second conduit passes through the outside of the dust reduction box;

[0007] A motor is arranged at the lowest part inside the dust reduction box, a linkage plate is arranged at the top end of the motor output end, a first air duct is fixedly connected to the end of the linkage plate away from the motor, the bottom end of the first air duct is connected to the ventilation piece and is rotatably connected; a nozzle is arranged at the top end of the first air duct, an electromagnet is arranged at the bottom end of the nozzle; a filter is arranged inside the dust reduction box and above the nozzle, an annular ring is arranged inside the dust reduction box and above the filter, a first annular groove is opened at the top end of the annular ring, a rotating part is inserted in the first annular groove, a sealing cover is arranged at the bottom end of the rotating part located outside the first annular groove, a magnetic block is arranged at the top end of the sealing cover.

[0008] Preferably, the ventilation member includes a first sealing ring and an annular air box; an annular notch is provided at the top of the annular air box; the first sealing ring is inserted into the annular notch, and the first air duct is connected to the first sealing ring; the first conduit and the second conduit are both connected to the annular air box.

[0009] Preferably, an air bag is provided at the bottom opening of the sealing cover.

[0010] Preferably, a receiving column is provided at the top of the sealing cover, the top of the receiving column passes through to the top of the rotating part, a receiving plate is provided at the top of the receiving column, a buffer spring is provided between the receiving plate and the rotating part, and initially there is a gap between the bottom end of the sealing cover and the filter plate.

[0011] Preferably, a notch is provided at the bottom end of the rotating member located in the first annular groove, and a roller is rotatably connected in the notch. When the rotating member slides in the first annular groove, the roller rolls on the inner wall of the first annular groove, and the bottom end portion of the rotating member located in the first annular groove does not contact the bottom end of the first annular groove.

[0012] Preferably, a water inlet pipe is provided on the side of the annular ring, and the end of the water inlet pipe away from the annular ring passes through the outside of the dust reduction box, and the end of the water inlet pipe outside the dust reduction box points upward and is connected to a water injection cylinder.

[0013] Preferably, a second sealing ring is inserted into the interior of the first annular groove, and the second sealing ring is provided with a cutout for embedding the rotating member; the rotating member cooperates with the second sealing ring to seal the notch of the first annular groove; and the second sealing ring is rotatably connected to the inner wall of the first annular groove.

[0014] Preferably, a guide pipe is provided on the side of the annular ring, one end of the guide pipe is connected to the first annular groove, and the other end of the guide pipe passes through to the outside of the dust suppression box.

[0015] Preferably, a second air duct is provided at the top end of the sealing cover, a second annular groove is provided at the bottom end of the box cover, a third sealing ring is rotatably connected inside the second annular groove, and the top end of the second air duct passes through the third sealing ring; a third air pump is provided at the top end of the box cover, the input end of the third air pump passes through the second annular groove, and the output end of the third air pump is provided with a discharge pipe, and the end of the discharge pipe away from the third air pump is located outside the tunnel.

[0016] Preferably, the second air guide tube is made of deformable plastic.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The tunnel construction dust reduction facility described in the present invention is provided with a sealing cover and a nozzle. When in use, the sealing cover seals the top part of the filter, and then the airflow is ejected from the bottom through the nozzle. The dust blocked on the filter is pushed out when the airflow in the opposite direction is applied, and the filter is fully unblocked as the nozzle and the sealing cover rotate synchronously. There is no need to disassemble and clean it regularly, and there is no need to stop the dust reduction treatment of the tunnel during unblocking, so the efficiency of tunnel dust reduction is improved.

[0019] 2. The tunnel construction dust reduction facility described in the present invention is provided with an air bag; when in use, the air bag can be attached to the top of the filter plate, thereby improving the sealing effect of the sealing cover on the top of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 It is a side schematic diagram of the dust suppression box of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the dust suppression box of the present invention;

[0024] Figure 4 is a schematic diagram of the ventilator connection structure of the present invention;

[0025] Figure 5 is a schematic diagram of a ventilator of the present invention;

[0026] Figure 6 is a schematic diagram of the first air guide tube connection structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the sealing cover connection structure of the present invention;

[0028] Figure 8 is a schematic diagram of an annular ring of the present invention;

[0029] Fig. 9 is a schematic diagram of a second sealing ring on the annular ring of the present invention;

[0030] Fig.10 It is a schematic diagram of the connection between the sealing cover and the rotating member of the present invention;

[0031] Fig.11 is a side schematic diagram of a rotating member of the present invention;

[0032] Fig.12 It is a schematic diagram of the bottom structure of the box cover of the present invention;

[0033] Fig.13 It is a schematic diagram of the bottom end of a case cover of the present invention.

[0034] In the figure: 1, frame; 11, dust suppression box; 12, box cover; 121, second annular groove; 122, third air pump; 123, discharge pipe; 13, first air pump; 2, ventilation piece; 200, first sealing ring; 201, annular air box; 21, first conduit; 22, second air pump; 23, second conduit; 3, motor; 31, linkage plate; 32, first air guide pipe; 33, jet head; 34, electromagnet; 4, filter; 5, annular ring; 51, first annular groove; 510, second sealing ring; 52, rotating piece; 521, roller; 53, sealing cover; 54, receiving column; 55, receiving plate; 56, buffer spring; 57, magnetic block; 58, air bag; 581, water injection cylinder; 582, water inlet pipe; 59, outlet pipe; 6, second air guide pipe; 61, third sealing ring. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0036] like Figures 1 to 8 As shown, a tunnel construction dust reduction facility according to an embodiment of the present invention comprises a frame 1, a dust reduction box 11 is installed at the top of the frame 1, and an air outlet is opened at the bottom of the dust reduction box 11; a box cover 12 is arranged at the top of the dust reduction box 11, and a first air pump 13 is arranged at the top of the box cover 12, and the output end of the first air pump 13 is connected to the inside of the dust reduction box 11; a ventilator 2 is arranged at the bottom of the dust reduction box 11, and a first conduit 21 is connected to the air inlet end of the ventilator 2, and the first conduit 21 is connected to the outside of the dust reduction box 11, and the first conduit 21 located outside the dust reduction box 11 is externally connected to a second air pump 22, and the second air pump 22 is installed at the top of the frame 1; the air outlet pipe of the ventilator 2 is connected to a second conduit 23, and the second conduit 23 is connected to the outside of the dust reduction box 11;

[0037] A motor 3 is arranged at the bottom of the dust reduction box 11, and a linkage plate 31 is arranged at the top of the output end of the motor 3. A first air duct 32 is fixedly connected to the end of the linkage plate 31 away from the motor 3, and the bottom end of the first air duct 32 is connected and rotatably connected to the ventilation member 2; a nozzle 33 is arranged at the top of the first air duct 32, and an electromagnet 34 is arranged at the bottom end of the nozzle 33; a filter 4 is arranged inside the dust reduction box 11 and above the nozzle 33, and an annular ring 5 is arranged inside the dust reduction box 11 and above the filter 4, and a first annular groove 51 is opened at the top end of the annular ring 5, and a rotating member 52 is inserted in the first annular groove 51, and a sealing cover 53 is arranged at the bottom end of the rotating member 52 outside the first annular groove 51, and a magnetic block 57 is arranged at the top end of the sealing cover 53;

[0038] In the existing dust reduction treatment of the tunnel, dust reduction can be carried out by sprinkling water, ventilating, using dust removal vehicles and other operations in the tunnel; generally, for convenience, a dust removal vehicle is selected for operation; specifically, when the dust removal vehicle is used for dust reduction, the air pump on the dust removal vehicle absorbs the air in the tunnel, and then filters it through a filter bag or a filter plate and other filter structures. In actual operation, the filter structure is prone to clogging after being used for a period of time, so it needs to be regularly dismantled and cleaned, which is very inconvenient; in order to solve the above problems, the embodiment of the present invention is provided with a nozzle 33, a sealing cover 53 and the like; the specific use process is as follows; when in use, the staff pushes the frame 1 into the tunnel, and then starts the first The air pump 13, the first air pump 13 draws the air in the tunnel into the dust reduction box 11, and then filters the dust through the filter 4, and then discharges it through the air outlet opened at the bottom of the dust reduction box 11; in this process, dust will continue to accumulate on the top of the filter 4; after a period of use, the electromagnet 34 is energized, and the electromagnet 34 attracts the magnetic block 57 above, and at the same time the second air pump 22 and the motor 3 are started, and the second air pump 22 injects the outside air into the ventilation piece 2 through the first conduit 21, and the ventilation piece 2 discharges part of the gas through the second conduit 23, and injects the other part into the first air duct 32, and then the first air duct 32 injects the gas into the first air duct 32. The airflow from the air jet 33 acts on the bottom end of the filter 4, and the motor 3 drives the first air guide tube 32 to rotate through the linkage plate 31, and the first air guide tube 32 drives the air jet 33 to rotate; at the same time, the energized electromagnet 34 attracts the magnetic block 57, and the magnetic block 57 drives the rotating member 52 to rotate in the first annular groove 51 on the annular ring 5 through the sealing cover 53, and the sealing cover 53 is located directly above the air jet 33 when it rotates; at this time, the first air pump 13 works normally, and the sealing cover 53 is The cover 53 blocks the airflow output by the first air pump 13, so that the part of the filter 4 located below the sealing cover 53 is fully affected by the airflow ejected from the nozzle 33 below. Therefore, the dust blocked on the filter 4 is pushed out when it is affected by the airflow in the opposite direction. With the synchronous rotation of the nozzle 33 and the sealing cover 53, the filter 4 is fully unblocked; there is no need to disassemble and clean it regularly, and there is no need to stop the dust reduction treatment of the tunnel during unblocking, so the efficiency of tunnel dust reduction is improved; it should be pointed out that the input end of the second air pump 22 is externally connected to an air pipe leading to the outside of the tunnel (not shown in the drawings of the specification) to prevent the bottom end of the filter 4 from being blocked by dust in the air.

[0039] The ventilator 2 includes a first sealing ring 200 and an annular air box 201; an annular notch is provided at the top of the annular air box 201; the first sealing ring 200 is inserted into the annular notch, and the first air guide tube 32 is connected to the first sealing ring 200; the first conduit 21 and the second conduit 23 are both connected to the annular air box 201; when the first air guide tube 32 rotates, the first air guide tube 32 drives the first sealing ring 200 to rotate in the annular notch on the annular air box 201, and the second air pump 22 first injects external air into the annular air box 201, and then into the first air guide tube 32; the entire inflation process does not require the second air pump 22 to rotate synchronously; the second air pump 22 is protected and the stability of use is improved.

[0040] An air bag 58 is provided at the bottom opening of the sealing cover 53 ; when in use, the air bag 58 can be attached to the top of the filter sheet 4 , thereby improving the sealing effect of the sealing cover 53 on the top of the filter sheet 4 .

[0041] like Figures 4 to 11 As shown, a receiving column 54 is provided at the top of the sealing cover 53, and the top of the receiving column 54 passes through the top of the rotating member 52, and a receiving plate 55 is provided at the top of the receiving column 54, and a buffer spring 56 is provided between the receiving plate 55 and the rotating member 52, and initially there is a gap between the bottom end of the sealing cover 53 and the filter 4; initially there is a gap between the bottom end of the sealing cover 53 and the filter 4; when the electromagnet 34 is energized, the magnetic block 57 is attracted and there is a downward magnetic force, so that the sealing cover 53 drives the receiving column 54 to move downward, and the receiving column 54 drives the receiving plate 55 to compress the buffer spring 56, and stops when the bottom end of the sealing cover 53 contacts the top end of the filter 4, and then slides at the top end of the filter 4, and finally when the electromagnet 34 is powered off, the sealing cover 53 is reset to prevent the sealing cover 53 from continuously contacting the filter 4, causing the filter 4 to be continuously damaged by friction.

[0042] A notch is provided at the bottom end of the rotating member 52 located in the first annular groove 51, and a roller 521 is rotatably connected in the notch. When the rotating member 52 slides in the first annular groove 51, the roller 521 rolls on the inner wall of the first annular groove 51, and the bottom end portion of the rotating member 52 located in the first annular groove 51 does not contact the bottom end of the first annular groove 51; when the rotating member 52 rotates, the roller 521 rolls on the inner wall of the first annular groove 51; the bottom end portion of the rotating member 52 located in the first annular groove 51 does not contact the bottom end of the first annular groove 51; thereby preventing the inner wall of the bottom of the first annular groove 51 from being continuously rubbed by the bottom end of the rotating member 52, causing wear of the rotating member 52 and affecting its service life.

[0043] A water inlet pipe 582 is arranged on the side of the annular ring 5, and the end of the water inlet pipe 582 away from the annular ring 5 passes through to the outside of the dust reduction box 11, and the end of the water inlet pipe 582 located outside the dust reduction box 11 points upward and is connected to a water injection cylinder 581; a one-way valve is arranged inside the water injection cylinder 581, and the one-way valve is opened when in use, and liquid water inside the water injection cylinder 581 flows into the first annular groove 51 through the water inlet pipe 582, thereby cooling the first annular groove 51 and preventing the rotating part 52 from continuously generating frictional heat in the first annular groove 51, which causes the annular ring 5 to overheat and deform.

[0044] A second sealing ring 510 is inserted into the interior of the first annular groove 51, and the second sealing ring 510 is provided with a fracture for the embedding of the rotating member 52; the rotating member 52 cooperates with the second sealing ring 510 to seal the groove of the first annular groove 51; and the second sealing ring 510 is rotatably connected to the inner wall of the first annular groove 51; by setting the second sealing ring 510, it is possible to prevent the water vapor generated by the evaporation of liquid water in the first annular groove 51 from entering the dust reduction box 11, humidifying the dust in the dust reduction box 11 into a mass, causing the filter plate 4 to be quickly blocked.

[0045] A discharge pipe 59 is provided on the side of the annular ring 5, one end of the discharge pipe 59 is connected to the first annular groove 51, and the other end passes through the outside of the dust reduction box 11; the discharge pipe 59 discharges the water vapor in the first annular groove 51 to the outside of the dust reduction box 11 to avoid the water vapor from concentrating inside the first annular groove 51.

[0046] like Figure 12 to Figure 13 As shown, the top of the sealing cover 53 is connected with the second air guide pipe 6, the bottom of the box cover 12 is provided with a second annular groove 121, the inside of the second annular groove 121 is rotatably connected with the third sealing ring 61, and the top of the second air guide pipe 6 passes through the third sealing ring 61; the top of the box cover 12 is provided with a third air pump 122, the input end of the third air pump 122 passes through the second annular groove 121, and the output end of the third air pump 122 is connected with a discharge pipe 123, and the end of the discharge pipe 123 away from the third air pump 122 is located outside the tunnel; when the sealing cover 53 rotates, the second air guide pipe 6 at the top rotates synchronously, and the second air guide pipe 6 drives the third sealing ring 61 to rotate in the second annular groove 121, and at this time the third air pump 122 is started, and the third air pump 122 evacuates the second annular groove 121 through the input end, and the second annular groove 121 evacuates the inside of the sealing cover 53 through the second air guide pipe 6; at this time, the control electromagnet 34 is intermittently energized, and the motor 3 is started at the same time, so that the sealing cover 53 rotates and moves downward intermittently, and when the bottom end of the sealing cover 53 contacts the top end of the filter plate 4, the dust accumulated on the top end of the filter plate 4 is isolated, and then discharged to the outside of the tunnel through the third air pump 122 and the discharge pipe 123, realizing automatic unloading without stopping.

[0047] The second air duct 6 is made of deformable plastic; when the sealing cover 53 moves, the second air duct 6 is deformed synchronously; and the sealing cover 53 is prevented from being interfered by the second air duct 6 when moving up and down.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A tunnel construction dust reduction facility, characterized by: The vehicle comprises a frame (1), a dust reduction box (11) is installed at the top of the frame (1), a box cover (12) is arranged at the top of the dust reduction box (11), a first air pump (13) is arranged at the top of the box cover (12), and the output end of the first air pump (13) is connected to the inside of the dust reduction box (11); a vent (2) is arranged at the bottom of the dust reduction box (11), the air inlet end of the vent (2) is connected to a first conduit (21), the first conduit (21) is connected to the outside of the dust reduction box (11), the first conduit (21) located outside the dust reduction box (11) is externally connected to a second air pump (22), and the second air pump (22) is installed at the top of the frame (1); the air outlet pipe of the vent (2) is connected to a second conduit (23), and the second conduit (23) is connected to the outside of the dust reduction box (11); A motor (3) is arranged at the bottom of the dust reduction box (11); a linkage plate (31) is arranged at the top of the output end of the motor (3); a first air guide pipe (32) is fixedly connected to the end of the linkage plate (31) away from the motor (3); the bottom end of the first air guide pipe (32) is connected to the ventilation member (2) and is rotatably connected; a nozzle (33) is arranged at the top of the first air guide pipe (32); an electromagnet (34) is arranged at the bottom of the nozzle head (33); the dust reduction box (11) A filter (4) is arranged inside and above the nozzle (33), an annular ring (5) is arranged inside the dust suppression box (11) and above the filter (4), a first annular groove (51) is provided at the top end of the annular ring (5), a rotating member (52) is inserted into the inside of the first annular groove (51), a sealing cover (53) is arranged at the bottom end of the rotating member (52) outside the first annular groove (51), and a magnetic block (57) is arranged at the top end of the sealing cover (53).

2. A tunnel construction dust reduction facility according to claim 1, characterized in that: The ventilator (2) comprises a first sealing ring (200) and an annular air box (201); an annular notch is provided at the top of the annular air box (201); the first sealing ring (200) is inserted into the annular notch, the first air guide tube (32) is connected to the first sealing ring (200); and the first conduit (21) and the second conduit (23) are both connected to the annular air box (201).

3. A tunnel construction dust reduction facility according to claim 1, characterized in that: An air bag (58) is provided at the bottom opening of the sealing cover (53).

4. The tunnel construction dust reduction facility according to claim 1, characterized in that: A receiving column (54) is arranged at the top end of the sealing cover (53), the top end of the receiving column (54) passes through the top of the rotating member (52), a receiving plate (55) is arranged at the top end of the receiving column (54), a buffer spring (56) is arranged between the receiving plate (55) and the rotating member (52), and initially there is a gap between the bottom end of the sealing cover (53) and the filter plate (4).

5. The tunnel construction dust reduction facility according to claim 1, characterized in that: A notch is provided at the bottom end of the rotating member (52) located in the first annular groove (51), and a roller (521) is rotatably connected in the notch. When the rotating member (52) slides in the first annular groove (51), the roller (521) rolls on the inner wall of the first annular groove (51). The bottom end portion of the rotating member (52) located in the first annular groove (51) does not contact the bottom end of the first annular groove (51).

6. A tunnel construction dust reduction facility according to claim 5, characterized in that: A water inlet pipe (582) is provided on the side of the annular ring (5), and the end of the water inlet pipe (582) away from the annular ring (5) passes through the outside of the dust reduction box (11), and the end of the water inlet pipe (582) located outside the dust reduction box (11) points upward and is connected to a water injection cylinder (581).

7. A tunnel construction dust reduction facility according to claim 6, characterized in that: A second sealing ring (510) is inserted into the interior of the first annular groove (51), and the second sealing ring (510) is provided with a cutout for inserting a rotating member (52); the rotating member (52) cooperates with the second sealing ring (510) to seal the groove of the first annular groove (51); and the second sealing ring (510) is rotatably connected to the inner wall of the first annular groove (51).

8. A tunnel construction dust reduction facility according to claim 7, characterized in that: A guide pipe (59) is provided on the side of the annular ring (5); one end of the guide pipe (59) is connected to the first annular groove (51), and the other end of the guide pipe (59) is connected to the outside of the dust suppression box (11).

9. The tunnel construction dust reduction facility according to claim 2, characterized in that: The top end of the sealing cover (53) is connected to a second air guide pipe (6), the bottom end of the box cover (12) is provided with a second annular groove (121), the interior of the second annular groove (121) is rotatably connected to a third sealing ring (61), and the top end of the second air guide pipe (6) passes through the third sealing ring (61); the top end of the box cover (12) is provided with a third air pump (122), the input end of the third air pump (122) passes through the second annular groove (121), and the output end of the third air pump (122) is connected to a discharge pipe (123), and the end of the discharge pipe (123) away from the third air pump (122) is located outside the tunnel.

10. A tunnel construction dust reduction facility according to claim 9, characterized in that: The second air guide tube (6) is made of deformable plastic.

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