Mobile dust and poison purification device for tunnel construction

Abstract

The invention provides a flowing type dust and poison purification device for tunnel construction, and relates to the technical field of tunnel construction.The flowing type dust and poison purification device comprises a tunnel jet fan, the tunnel jet fan is connected with a speed reduction bin through an air pipe, a filtering bin is arranged at the other end of the speed reduction bin, and a cleaning bin is arranged at the upper end of the filtering bin; and the cleaning bin is connected with the water filtering bin. According to the invention, air can be effectively purified at a tunnel dust and poison source or a tunnel worker operation concentrated place, and dust and poison spreading can be effectively prevented and controlled.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, in particular to a mobile dust and toxicity purification device used for tunnel construction. Background Art

[0002] Tunnels are engineering structures buried in the ground, and are a form of human use of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels, and military tunnels. The tunnel conference held by the Organization for Economic Cooperation and Development in 1970 combined various factors and defined tunnels as: "a cavern with a cross-sectional area of ​​more than 2 square meters built underground by any method in a specified shape and size for a certain purpose." The structure of a tunnel consists of two parts: the main building and ancillary equipment. The main building consists of a tunnel body and a tunnel door. The ancillary equipment includes a car shelter, fire-fighting facilities, emergency communications and drainage facilities. Long tunnels also have special ventilation and lighting equipment.

[0003] At present, the mainstream construction technology of tunnels is mining blasting, which will generate a large amount of pollution during the construction process. Dust and toxic pollution is easy to accumulate and difficult to disperse in semi-enclosed spaces such as tunnels, and large amounts of inhalation will have irreversible effects on the health of tunnel workers. Summary of the invention

[0004] In view of the above-mentioned prior art, the present invention proposes a mobile dust and toxic purification device for tunnel construction.

[0005] The present invention provides a mobile dust and toxic purification device for tunnel construction, comprising a tunnel jet fan, which is connected to a deceleration bin through an air duct, a filter bin is provided at the other end of the deceleration bin, a cleaning bin is provided at the upper end of the filter bin, and the cleaning bin is connected to a water filter bin.

[0006] Preferably, a plurality of brackets are provided at the bottom of the tunnel jet fan and the air duct.

[0007] Preferably, the vertical cross-section of the deceleration chamber is larger than the vertical cross-section of the air duct, an air duct interface is provided on one side of the deceleration chamber, an inclined deceleration plate is provided on the top of the other side of the deceleration chamber, and a filter chamber interface is provided at the lower part of the other side of the deceleration chamber.

[0008] Preferably, a deceleration bin interface is provided at the lower portion of one side of the filter bin, a funnel is provided at the bottom of the filter bin, a dust storage bin is provided at the bottom of the funnel, a dust storage bin cover is provided at the bottom of the dust storage bin, several barrel-shaped filter elements are provided inside the filter bin, and a filter element socket for inserting the corresponding barrel-shaped filter element is provided on the upper end surface of the filter bin.

[0009] Preferably, each of the barrel-shaped filter elements is provided with a vertical air duct inside, and a plurality of air nozzles are provided on the tube wall of the vertical air duct; the top of the vertical air duct extends to the inside of the cleaning bin and is connected to the main air duct through a plurality of transverse air ducts, and the main air duct extends to the outside of the cleaning bin and is connected to the air inlet, a first one-way valve is provided inside the air inlet, and a water filter bin interface is provided on the side of the cleaning bin opposite to the air inlet.

[0010] Preferably, a mesh inner support is provided on the outer periphery of each of the vertical air ducts.

[0011] Preferably, an air inlet pipe, an air outlet pipe and a water injection port are arranged on the top of the water filter bin, a water exchange valve is arranged on the bottom of the water filter bin, and a second one-way valve is arranged inside the air inlet pipe.

[0012] Preferably, it also includes a transport vehicle, and the tunnel jet fan, deceleration chamber, filter chamber, cleaning chamber and water filter chamber are all loaded on the transport vehicle.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention proposes a mobile dust and toxic purification device for tunnel construction, which can effectively purify the air at the source of tunnel dust and toxicity or at the concentrated work area of ​​tunnel workers, and effectively prevent and control the spread of dust and toxicity; it can form negative pressure air through directional ventilation of the jet fan to clean the filter cartridge, effectively increasing the service life of the filter cartridge and reducing the maintenance cost of the device; it can effectively make up for the shortcomings of small ventilation volume and slow dust and toxicity removal in traditional tunnels, and effectively reduce the physical damage of dust and toxicity to workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the planar structure of a mobile dust and toxic purification device used for tunnel construction in an embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the three-dimensional dispersed structure of a mobile dust and toxic purification device for tunnel construction in an embodiment of the present invention (excluding the transport vehicle).

[0016] Figure 3 It is a schematic diagram of the structure of the deceleration bin in an embodiment of the present invention.

[0017] Figure 4 It is a schematic diagram of the structure of the filter bin in an embodiment of the present invention.

[0018] Figure 5 Schematic diagram of the structure of the barrel-shaped filter element in an embodiment of the present invention.

[0019] Figure 6 Schematic diagram of the structure of the cleaning chamber in an embodiment of the present invention.

[0020] Figure 7 It is a schematic diagram of the structure of the water filter bin in an embodiment of the present invention.

[0021] In the figure, 1- tunnel jet fan, 2- bracket, 3- air duct, 4- deceleration chamber, 401- air duct interface, 402- deceleration plate, 403- filter chamber interface, 5- filter chamber, 501- deceleration chamber interface, 502- funnel, 503- dust storage chamber, 504- dust storage chamber cover, 505- filter element socket, 6- barrel filter element, 601- filter element barrel body, 602- filter element edge, 7- cleaning Cleaning chamber, 701-air inlet, 702-first one-way valve, 703-main air inlet pipe, 704-lateral air inlet pipe, 705-vertical air inlet pipe, 706-air nozzle, 707-mesh inner support, 708-water filter chamber interface, 8-water filter chamber, 801-air inlet pipe, 802-second one-way valve, 803-air outlet pipe, 804-water inlet, 805-water exchange valve, 9-transport vehicle. DETAILED DESCRIPTION

[0022] 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 described below in conjunction with specific embodiments.

[0023] Example: Figure 1-Figure 2 As shown, a mobile dust and toxic purification device for tunnel construction includes a carrier vehicle 9, which is used to assemble the following equipment, including a tunnel jet fan 1, which is connected to a deceleration chamber 4 through an air duct 3, and a filter chamber 5 is provided at the other end of the deceleration chamber 4, and a cleaning chamber 7 is provided at the upper end of the filter chamber 5, and the cleaning chamber 7 is connected to a water filter chamber 8.

[0024] Furthermore, three brackets 2 are provided at the bottom of the tunnel jet fan 1 and the air duct 3 , and both are fixed to the transport vehicle 9 through the brackets 2 . The brackets 2 can adjust the height and fix the tunnel jet fan 1 and the air duct 3 .

[0025] Further, such as Figure 3 As shown, the vertical cross-section of the deceleration chamber 4 is larger than the vertical cross-section of the air duct 3, an air duct interface 401 is provided in the middle of one side of the deceleration chamber 4, an inclined deceleration plate 402 is provided on the top of the other side of the deceleration chamber 4, and a filter chamber interface 403 is provided at the lower part of the other side of the deceleration chamber 4. The air duct 3 guides the high-speed airflow introduced by the tunnel jet fan 1 into the deceleration chamber 4, and the introduced high-speed dust-containing toxic gas passes through the large cross-section of the deceleration chamber 4 and hits the deceleration plate 402, so that the gas flow rate can be rapidly reduced.

[0026] Further, such as Figure 2 , Figure 4-Figure 5As shown, a deceleration bin interface 501 is provided at the lower part of one side of the filter bin 5, a funnel 502 is provided at the bottom of the filter bin 5, a dust storage bin 503 is provided at the bottom of the funnel 502, a dust storage bin cover 504 is provided at the bottom of the dust storage bin 503, a barrel filter element 6 arranged in 4×4 is provided inside the filter bin 5, a filter element socket 505 for inserting the corresponding barrel filter element 6 is provided on the upper end surface of the filter bin 5, the barrel filter element 6 includes a filter element barrel body 601, and a filter element edge 602 is provided at the top of the filter element barrel body 601, and the filter element edge 602 plays a role in fixing the filter element barrel body 601 on the filter element socket 505. The airflow after deceleration flows into the filter bin 5, and some large-size particles in the gas fall into the funnel 502 and enter the dust storage bin 503 by gravity, and the remaining gas containing smaller particles is filtered through the barrel filter element 6 as the airflow rises.

[0027] Further, such as Figure 6 As shown, each barrel-shaped filter element 6 is provided with a vertical air duct 705 inside, and a plurality of air nozzles 706 are provided on the pipe wall of the vertical air duct 705; the top of the vertical air duct 705 extends to the inside of the cleaning chamber 7, and is connected to the main air duct 703 through four transverse air ducts 704, the main air duct 703 extends to the outside of the cleaning chamber 7 and is connected to the air inlet 701, the air inlet 701 is provided with a first one-way valve 702 inside, the middle part of the side of the cleaning chamber 7 opposite to the air inlet 702 is provided with a water filter chamber interface 708, and the periphery of each vertical air duct 705 is provided with a mesh inner support 707. The air filtered by the barrel-shaped filter element 6 enters the cleaning chamber 7.

[0028] Further, such as Figure 7 As shown, the top of the water filter chamber 8 is provided with an air inlet pipe 801, an air outlet pipe 803 and a water injection port 804, the bottom of the water filter chamber 8 is provided with a water change valve 805, and the inside of the air inlet pipe 801 is provided with a second one-way valve 802. The gas in the clean chamber 7 enters the water filter chamber 8 through the air inlet pipe 801. Clean water is placed in the water filter chamber 8, the bottom of the air inlet pipe 801 is placed below the water surface, and the bottom of the air outlet pipe 803 is placed above the water surface. After the air is filtered by water, it is discharged through the air outlet pipe 803. The water injection port 804 is provided at the top of the water filter chamber 8, and the water change valve 805 is provided at the bottom, which can facilitate the regular replacement of the water in the water filter chamber 8. The second one-way valve 802 of the water filter chamber 8 can ensure that the water in the water filter chamber 8 will not be sucked into the clean chamber 7 when the tunnel jet fan 1 runs in reverse.

[0029] After a period of use, a lot of dust will accumulate on the surface of the barrel-shaped filter element 6, affecting the air flow efficiency. At this time, the tunnel jet fan 1 runs in reverse, and the air flows into the main air duct 703, the horizontal air duct 704, and the vertical air duct 705 in turn through the air inlet 701 and the first one-way valve 702, and then is ejected at high speed through the air nozzle 706 to blow and vibrate the barrel-shaped filter element 6, effectively cleaning the dust on the outer surface of the filter element barrel body 601, and the blown dust enters the dust storage bin 503 through the funnel 502, and can be discharged through the dust storage bin cover 504.

[0030] Among them, the transport vehicle 9 is driven by a battery and can reverse discharge to drive the tunnel jet fan 1. The transport vehicle 9 can be equipped with a fully automatic controller. When it is used for more than a certain time or the pressure difference between the filter chamber 5 and the external space reaches a certain value, the tunnel jet fan 1 is automatically controlled to reverse and start the cleaning operation.

[0031] The air duct 3 is a hard air duct, and a flange is arranged at the end to facilitate connection with the tunnel jet fan 1 and the reduction chamber 4, while ensuring the service life of the air duct 3.

[0032] Since there is a consumable barrel-shaped filter element 6 between the cleaning chamber 7 and the filtering chamber 5 that needs to be replaced regularly, the contact surface between the two cannot be welded. To ensure the air tightness of the structure, a rubber gasket is provided on the contact surface between the cleaning chamber 7 and the filtering chamber 5, and bolt fixing holes are provided at the outer corners. The cleaning chamber 7 and the filtering chamber 5 are connected by bolts to facilitate the replacement of the barrel-shaped filter element 6.

[0033] The above are only implementation modes of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent schemes made using the contents of the present invention specification, directly or indirectly applied in other related technical fields, are also within the patent protection scope of the present invention.

Claims

1. A mobile dust and toxic purification device for tunnel construction, characterized in that: It comprises a tunnel jet fan, which is connected to a deceleration chamber through an air duct. A filter chamber is arranged at the other end of the deceleration chamber, a cleaning chamber is arranged at the upper end of the filter chamber, and the cleaning chamber is connected to a water filter chamber.

2. The mobile dust and toxic purification device for tunnel construction according to claim 1, characterized in that: A plurality of brackets are arranged at the bottom of the tunnel jet fan and the air duct.

3. The mobile dust and toxicity purification device for tunnel construction according to claim 1 or 2, characterized in that: The vertical cross-section of the deceleration chamber is larger than the vertical cross-section of the air duct. An air duct interface is provided on one side of the deceleration chamber, an inclined deceleration plate is provided on the top of the other side of the deceleration chamber, and a filter chamber interface is provided at the lower part of the other side of the deceleration chamber.

4. The mobile dust and toxicity purification device for tunnel construction according to claim 1 or 2, characterized in that: A deceleration bin interface is provided at the lower part of one side of the filter bin, a funnel is provided at the bottom of the filter bin, a dust storage bin is provided at the bottom of the funnel, a dust storage bin cover is provided at the bottom of the dust storage bin, a plurality of barrel-shaped filter elements are provided inside the filter bin, and a filter element socket for inserting the corresponding barrel-shaped filter element is provided on the upper end surface of the filter bin.

5. The mobile dust and toxic purification device for tunnel construction according to claim 1 or 2, characterized in that: A vertical air duct is provided inside each of the barrel-shaped filter elements, and a plurality of air nozzles are provided on the tube wall of the vertical air duct; the top of the vertical air duct extends to the inside of the cleaning bin and is connected to the main air duct through a plurality of transverse air ducts, and the main air duct extends to the outside of the cleaning bin and is connected to the air inlet, a first one-way valve is provided inside the air inlet, and a water filter bin interface is provided on the side of the cleaning bin opposite to the air inlet.

6. The mobile dust and toxicity purification device for tunnel construction according to claim 5, characterized in that: The outer periphery of each vertical air duct is provided with a mesh inner support.

7. The mobile dust and toxicity purification device for tunnel construction according to claim 1 or 2, characterized in that: An air inlet pipe, an air outlet pipe and a water injection port are arranged on the top of the water filter bin, a water exchange valve is arranged on the bottom of the water filter bin, and a second one-way valve is arranged inside the air inlet pipe.

8. The mobile dust and toxic purification device for tunnel construction according to claim 1 or 2, characterized in that: It also includes a transport vehicle, on which the tunnel jet fan, the deceleration chamber, the filter chamber, the cleaning chamber and the water filter chamber are all loaded.

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