Ventilation and purification device for tunnel construction

Abstract

The tunnel construction ventilation and purification device comprises a ventilation box, a dust filtering plate and a dust collecting groove, the two ends of the ventilation box are open, a mounting block is fixedly arranged in the ventilation box, the top of the mounting block is sunken to form a first mounting groove, and a second mounting groove is formed in the top of the ventilation box in a penetrating mode; the two ends of the dust filtering plate are inserted into the first mounting groove and the second mounting groove correspondingly, a top plate is arranged at the top of the second mounting groove, the dust filtering plate divides the ventilation box into a first cavity and a second cavity, a fan is arranged in the first cavity, and the dust collecting groove is formed in the bottom of the inner wall of the ventilation box and located below the dust filtering plate. A first inclined face is arranged on the side, close to the draught fan, of the dust collecting groove, and a cover plate used for opening or closing the dust collecting groove is arranged at the communication position of the dust collecting groove and the second cavity. And workers need to frequently replace and clean the filtering device.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel air purification technical field especially relates to a tunnel construction ventilation purification device. BACKGROUND

[0002] Tunnel construction is usually carried out underground, and the space is relatively closed, and the natural ventilation condition is extremely limited. In such an environment, various pollutants generated during the construction process, such as dust, smoke, harmful gases (such as carbon monoxide, nitrogen oxides, etc.) and exhaust gas discharged during the operation of mechanical equipment, are easy to accumulate in the tunnel. These pollutants not only harm the respiratory health of construction personnel, but also may cause safety accidents such as explosion, so the tunnel construction ventilation purification device plays a vital role in tunnel construction. These devices are generally composed of a fan and an air purification equipment. The fan compresses air through an air compressor, utilizes the high-speed rotation of a multi-stage centrifugal fan impeller to convert the kinetic energy of air flow into mechanical energy, and outputs high-pressure air, thereby realizing the functions of ventilation, smoke exhaust, cooling, etc. in the tunnel.

[0003] The Chinese patent with publication number CN215633078U discloses a construction tunnel air curtain type ventilation circulating device. The device rotates the driving wheel to drive the driven wheel, so that the pull rope is wound or loosened. When the stop block moves to the left, the clamping block extrudes the spring, and the clamping block releases the connecting block, so that the worker can conveniently take out the filter device, and the filter screen is convenient to disassemble and clean, thereby improving the ventilation circulation efficiency. The inventor finds that although the device can realize quick disassembly and installation of the filter device, when the filter device filters dust, part of the dust will be filtered on one side of the filter device and on the filter device. The dust on the filter device will also fall on one side of the filter device under the action of its own weight. The accumulated dust will increase the dust accumulation efficiency on the filter device, and the worker needs to frequently clean the filter device. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model provides a tunnel construction ventilation purification device, which solves the problem that the filter device accumulates too much dust on one side, causing the filter device to accumulate dust too quickly during use, and the worker needs to frequently replace and clean the filter device.

[0005] According to the embodiment of the utility model, a tunnel construction ventilation and purification device, it includes ventilation box, filter dust board and dust collecting groove, ventilation box both ends open, be equipped with the mounting block in ventilation box, the top recess of mounting block forms first installation groove, the top of ventilation box is equipped with second installation groove, the both ends of filter dust board are inserted in first installation groove and second installation groove respectively, the top of second installation groove is detachably equipped with top plate through bolt, filter dust board divides ventilation box into first chamber and second chamber, be equipped with fan in first chamber, dust collecting groove sets up in the bottom of ventilation box inner wall and is located below filter dust board, both ends of dust collecting groove are communicated with first chamber and second chamber respectively, one side of dust collecting groove close to fan is equipped with first slope, the cover plate for opening or closing dust collecting groove is equipped at the communication of dust collecting groove and second chamber.

[0006] Compared with the prior art, the utility model has the advantages that: by setting filter dust board in ventilation box and setting fan at one end of ventilation box, the air in the tunnel is sucked into the ventilation box by the fan and filtered by the filter dust board, a dust collecting groove is opened at the bottom of the inner wall of the ventilation box, and the dust falling from the filter dust board is collected by the dust collecting groove, thereby avoiding the dust filtered out of the filter dust board from being blown up by the air sucked by the fan and adhering to the filter dust board, which affects the filtering efficiency of the filter dust board, and the filter dust board does not need to be replaced and cleaned frequently, thereby ensuring the service life of the filter dust board and the sustainability of the ventilation and purification of the tunnel air.

[0007] Further, the first spring and the second spring are further included, the both ends of the filter dust board are slidably connected with the first installation groove and the second installation groove respectively, one end of the first spring is fixedly arranged at the bottom of the filter dust board, the other end of the first spring is fixedly connected with the inner wall of the first installation groove, one end of the second spring is fixedly connected with the top of the filter dust board, the other end of the second spring is abutted with the bottom of the top plate, and the driving assembly for driving the filter dust board to shake is further arranged on the ventilation box.

[0008] Further, the driving assembly includes: a mounting plate and a motor, the mounting plate is fixedly arranged at the top of the filter dust board and slidably arranged in the second installation groove, the motor is fixedly arranged at the top of the inner wall of the ventilation box, a cam is fixedly arranged on the output end of the motor, and the outer wall of the cam is abutted with the bottom of the mounting plate.

[0009] Further, the side wall of the mounting block facing the fan and away from the fan is provided with a second slope.

[0010] Further, the spray head is further included, the spray head is a plurality of, each spray head is arranged at the top of the inner wall of the ventilation box and located between the filter dust board and the fan, and the water tank for supplying water to the spray head is further arranged on the ventilation box.

[0011] Further, the activity box is arranged in the dust collecting groove, the activity box is matched with the first inclined surface at one end close to the first chamber, and the cover plate is further provided with a limiting piece, one side of the limiting piece is close to the side wall of the activity box.

[0012] Further, the activity box is arranged in the dust collecting groove, the activity box is matched with the first inclined surface at one end close to the first chamber, and the cover plate is further provided with a limiting piece, one side of the limiting piece is close to the side wall of the activity box. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the embodiment of the utility model.

[0014] Figure 2 It is a sectional structure schematic view of the embodiment of the utility model.

[0015] Figure 3 It is an internal structure schematic view of the ventilation box of the embodiment of the utility model.

[0016] In the above drawings: 1, ventilation box; 2, dust filter plate; 3, mounting block; 4, top plate; 5, fan; 6, dust collecting groove; 7, first inclined surface; 8, cover plate; 9, first spring; 10, second spring; 11, mounting plate; 12, motor; 13, cam; 14, second inclined surface; 15, spray head; 16, water tank; 17, activity box; 18, limiting piece; 19, conveying pipe. DETAILED DESCRIPTION

[0017] The technical scheme in the utility model will be further explained in connection with the drawings and embodiments.

[0018] As Figures 1-3As shown in the utility model embodiment, the tunnel construction ventilation and purification device comprises a ventilation box 1, a dust filter plate 2 and a dust collecting groove 6, the ventilation box 1 is open at both ends, a mounting block 3 is fixedly arranged in the ventilation box 1, a first mounting groove is formed in the top of the mounting block 3, a second mounting groove is formed through the top of the ventilation box 1, the dust filter plate 2 is respectively inserted into the first mounting groove and the second mounting groove at both ends, a top plate 4 is detachably arranged on the top of the second mounting groove through bolts, the dust filter plate 2 divides the ventilation box 1 into a first chamber and a second chamber, a fan 5 is arranged in the first chamber, the dust collecting groove 6 is arranged at the bottom of the inner wall of the ventilation box 1 and below the dust filter plate 2, the dust collecting groove 6 is communicated with the first chamber and the second chamber at both ends, a first inclined surface 7 is arranged on the side of the dust collecting groove 6 close to the fan 5, and a cover plate 8 for opening or closing the dust collecting groove 6 is arranged at the communication position of the dust collecting groove 6 and the second chamber. In the embodiment, the overall cross section of the dust collecting groove 6 is in the shape of a right trapezoid, when the device is used, the fan 5 is started, the fan 5 sucks the air with dust in the tunnel into the ventilation box 1, the air is purified by the dust filter plate 2, in the long-term work of the dust filter plate 2, a large amount of dust accumulates on the dust filter plate 2, the dust accumulates into groups and falls to the side of the dust filter plate 2 close to the fan 5 under the gravity of the dust itself and finally falls into the dust collecting groove 6 and is guided to the bottom of the dust collecting groove 6 by the first inclined surface 7 of the dust collecting groove 6 for collection, when the device reaches the predetermined working time, the worker can take out the dust filter plate 2 to clean the dust filter plate 2 by detaching the cover plate 8, since the dust collecting groove 6 is arranged below the dust filter plate 2 to collect the dust falling on the dust filter plate 2, the dust falling on the dust filter plate 2 is avoided from being blown up and down by the air sucked by the fan 5 and accumulated on the dust filter plate 2, thereby the filtering efficiency of the dust filter plate 2 is ensured and the service life of the dust filter plate 2 is prolonged, and the dust filter plate 2 does not need to be frequently replaced and cleaned.

[0019] As Figure 2 shown, further comprising a first spring 9 and a second spring 10, the dust filter plate 2 is slidably connected with the first mounting groove and the second mounting groove at both ends, one end of the first spring 9 is fixedly arranged at the bottom of the dust filter plate 2, the other end of the first spring 9 is fixedly connected with the inner wall of the first mounting groove, one end of the second spring 10 is fixedly connected with the top of the dust filter plate 2, the other end of the second spring 10 abuts against the bottom of the top plate 4, and the ventilation box 1 is further provided with a driving assembly for driving the dust filter plate 2 to shake. In the embodiment, the dust filter plate 2 is provided with springs at both ends, when the device works, the driving assembly is started, the driving assembly drives the dust filter plate 2 to shake, thereby the dust on the dust filter plate 2 is accelerated to fall, the dust accumulated on the dust filter plate 2 can quickly fall into the dust collecting groove 6, and the filtering efficiency of the dust filter plate 2 is ensured.

[0020] As Figure 2As shown, further, the driving assembly comprises a mounting plate 11 fixedly arranged on the top of the dust filter plate 2 and slidingly arranged in the second mounting groove, and a motor 12 fixedly arranged on the top of the inner wall of the ventilation box 1, and a cam 13 fixedly arranged on the output end of the motor 12, and the outer wall of the cam 13 abuts against the bottom of the mounting plate 11. In this embodiment, the mounting plate 11 is integrally formed with the top of the dust filter plate 2. In operation, the motor 12 is started, the motor 12 drives the cam 13 to rotate, the cam 13 lifts the mounting plate 11 back and forth, and the dust filter plate 2 is reset under the action of the first spring 9 and the second spring 10, so as to reciprocate, so that the dust filter plate 2 moves back and forth in the vertical direction to generate a shaking effect, thereby accelerating the falling of the dust on the dust filter plate 2.

[0021] As shown in Figure 2 further, the side wall of the mounting block 3 facing the fan 5 and away from the fan 5 is provided with a second inclined surface 14. Specifically, the cross section of the mounting block 3 is in the shape of an isosceles trapezoid. After the dust on the dust filter plate 2 falls, it will fall on the second inclined surface 14 of the mounting block 3, the second inclined surface 14 guides the dust, so that the dust slides into the dust collecting groove 6, avoiding the accumulation of dust on the mounting block 3.

[0022] As shown in Figure 2 further, it further comprises a plurality of spray heads 15, each of which is arranged on the top of the inner wall of the ventilation box 1 and between the dust filter plate 2 and the fan 5, and the ventilation box 1 is further provided with a water tank 16 for supplying water to the spray heads 15. In this embodiment, the water tank 16 stores water, the water tank 16 supplies water to the spray heads 15, the spray heads 15 spray water mist, the air sucked by the fan 5 is subjected to water mist dust removal, and the accumulated water at the bottom of the ventilation box 1 flows into the dust collecting groove 6 and is collected by the dust collecting groove 6.

[0023] As shown in Figures 2-3 further, it further comprises a movable box 17 arranged in the dust collecting groove 6, one end of the movable box 17 close to the first chamber is adapted to the first inclined surface 7, and the cover plate 8 is further provided with a limiting piece 18 abutting against the side wall of the movable box 17 on one side. In order to facilitate the treatment of the dust in the dust collecting groove 6, the movable box 17 is placed in the dust collecting groove 6, and the movable box 17 is limited by the limiting piece 18 at the bottom of the cover plate 8, so as to avoid its arbitrary movement, so that the dust entering the dust collecting groove 6 is collected by the movable box 17, and subsequently only the cover plate 8 needs to be opened, so that the movable box 17 can be taken out, and the dust in the movable box 17 can be poured out.

[0024] As shown in Figure 1Further, the device shown further comprises a conveying pipe 19, the movable box 17 is provided with a plurality of filter screen holes on the side away from the fan 5, one end of the conveying pipe 19 is communicated with the dust collecting groove 6 near the side of the second chamber, and the other end of the conveying pipe 19 is communicated with the water tank 16 and is provided with a conveying pump. Due to the existence of the filter screen holes on the movable box 17, the filter screen frame filters the mud formed by the dust and water in the movable box 17, and the conveying pump conveys the filtered water at the end of the dust collecting groove 6 near the second chamber to the water tank 16 for recycling, which saves water resources on the one hand and avoids overflow of the water in the dust collecting groove 6 on the other hand.

[0025] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A tunnel construction ventilation and purification device, characterized by, The utility model provides a dust filter, including: Ventilation box (1) and filter dust board (2), ventilation box (1) both ends open, be provided with mounting block (3) in ventilation box (1), the top recess of mounting block (3) forms first installation groove, the top of ventilation box (1) is provided with second installation groove through, filter dust board (2) both ends are inserted in first installation groove and second installation groove respectively, the top of second installation groove is detachably provided with top plate (4) through bolt, filter dust board (2) divides ventilation box (1) into first chamber and second chamber, be equipped with fan (5) in first chamber, Dust collection groove (6) is set up in the bottom of the inner wall of ventilation box (1) and is located below filter dust board (2), the both ends of dust collection groove (6) are communicated with first chamber and second chamber respectively, the side of dust collection groove (6) close to fan (5) is equipped with first inclined plane (7), the communicating place of dust collection groove (6) and second chamber is equipped with cover plate (8) for opening or closing dust collection groove (6).

2. A tunnel construction ventilation and purification device as claimed in claim 1, characterized in that Still including first spring (9) and second spring (10), filter dust board (2) both ends are connected with first installation groove, second installation groove slidingly, one end of first spring (9) is fixedly arranged in the bottom of filter dust board (2), the other end of first spring (9) is fixedly connected with the inner wall of first installation groove, one end of second spring (10) is fixedly connected with the top of filter dust board (2), the other end of second spring (10) is in abutment with the bottom of top plate (4), still be equipped with drive assembly for driving filter dust board (2) to shake on ventilation box (1).

3. A tunnel construction ventilation and purification apparatus according to claim 2, wherein Drive assembly includes: mounting plate (11) and motor (12), mounting plate (11) is fixedly arranged in the top of filter dust board (2) and is arranged in second installation groove slidingly, motor (12) is fixedly arranged in the top of the inner wall of ventilation box (1), the output end of motor (12) is fixedly equipped with cam (13), the outer wall of cam (13) is in abutment with the bottom of mounting plate (11).

4. A tunnel construction ventilation and purification apparatus as claimed in claim 3, characterized in that: The side wall of mounting block (3) towards fan (5) and away from fan (5) is equipped with second inclined plane (14).

5. A tunnel construction ventilation and purification apparatus as claimed in claim 1, characterized in that: Still including spray head (15), spray head (15) is several, every spray head (15) is arranged in the top of the inner wall of ventilation box (1) and is located between filter dust board (2) and fan (5), still be equipped with water tank (16) for supplying water to spray head (15) on ventilation box (1).

6. A tunnel construction ventilation and purification apparatus as claimed in claim 1, characterized in that: Still including movable box (17), movable box (17) is arranged in dust collection groove (6), one end of movable box (17) close to first chamber is adapted with first inclined plane (7), still be equipped with limiting piece (18) on cover plate (8), one side of limiting piece (18) is in close contact with the side wall of movable box (17).

7. A tunnel construction ventilation and purification apparatus as claimed in claim 6, characterized in that: Still including conveying pipe (19), the side of movable box (17) away from fan (5) is provided with a plurality of filter screen holes, one end of conveying pipe (19) is communicated with the side of dust collection groove (6) close to second chamber, the other end of conveying pipe (19) is communicated with water tank (16) and is equipped with conveying pump.

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