Tunnel smoke water mist ozone purification device and purification method

Abstract

The invention discloses a tunnel smoke water mist ozone purification device and method. The tunnel smoke water mist ozone purification device comprises a movable base, and an air booster pump on the movable base is connected with a high-pressure air storage tank; a gas outlet of the ozone generator is connected with an ozone balance gas storage tank; the high-pressure air storage tank is connected with the high-pressure water storage tank, the ozone balance air storage tank is connected with the high-pressure water storage tank, the micro-nano water mist spray head is installed on the high-pressure water storage tank, a first air inlet and a second air inlet are formed in the rear end of the micro-nano water mist spray head, the first air inlet is connected with an air outlet of the ozone balance air storage tank, and the second air inlet is communicated with air. Flow guide plates are arranged in the first air inlet hole and the second air inlet hole respectively, the included angle beta between each flow guide plate and the pipe wall of the micro-nano water mist spray head is equal to arctan (P1 / P0-P2), P1 is the air inlet pressure of the micro-nano water mist spray head, P2 is the negative pressure generated in the micro-nano water mist spray head, and P0 is the atmospheric pressure. The problems that construction dust and smoke pollution is large and safety is low during engineering blasting are solved, smoke control is facilitated, and poisonous and harmful gas can be discharged easily.

Description

Technical Field

[0001] The invention relates to a blasting smoke treatment technology, in particular to a tunnel smoke mist ozone purification device and a purification method. Background Art

[0002] Drilling and blasting is one of the main construction methods for underground projects such as underground chambers, tunnels, and mines in my country. The blasting stage mainly includes three stages: drilling, charging, and detonation. Due to the small diameter of the drill hole, the explosive releases a huge amount of energy in a short time, thereby breaking the rock and completing the face excavation. Due to the use of industrial explosives, a large amount of dust will be generated during the blasting process. Under the disturbance of the airflow in the tunnel, PM 10 The particles within the tunnel form Brownian motion and generate dust clouds, resulting in poor dust settling effects. Due to poor ventilation in the narrow and long construction space, the dust cloud is difficult to discharge. Even after several hours of blasting, the dust concentration in the tunnel is still high. The poor air environment in the tunnel greatly reduces the construction efficiency of the construction workers, so the dust removal efficiency problem is very prominent. On the other hand, blasting also produces a large amount of carbon monoxide (CO), nitrogen oxides (NO X ), ammonia (NH3), hydrogen sulfide (H2S), sulfur dioxide (SO2) and other toxic and harmful gases, NO X Unpleasant odors such as NH3, H2S, SO2, etc. will cause great irritation to the human respiratory tract, which not only affects the construction period, but also poses a great threat to the physical and mental health of tunnel construction workers.

[0003] The existing dust and fume control mainly starts from the five aspects of "reduction, reduction, discharge, removal and blocking", which can reduce dust to a certain extent, but there are still some shortcomings such as poor treatment effect of small dust particles, large amount of water resources required, and secondary pollution outside the cave. In addition, physical means have limited effect on removing toxic and harmful gases and their corresponding pungent odors produced by blasting.

[0004] Most of the waste gas in blasting smoke is soluble in water, but carbon monoxide (CO) and nitric oxide (NO) gases are difficult to dissolve in water. Conventional water mist dust removal technology is difficult to remove them, so there is an urgent need to develop a technology that can effectively remove harmful gases that are difficult to dissolve in water. Summary of the invention

[0005] The technical problem to be solved by the present invention is that, in view of the deficiency that waste gas insoluble in water in existing blasting smoke is difficult to remove, the present invention provides a tunnel smoke water mist ozone purification device and purification method which can efficiently and safely remove tunnel smoke.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A tunnel smoke, dust, mist and ozone purification device comprises a mobile base, on which an air booster pump, a high-pressure gas tank, a gas monitoring sensor, an ozone generator, an ozone balance gas tank and a high-pressure water tank are installed, wherein the air booster pump is connected to the high-pressure gas tank via a No. 4 solenoid valve; the air outlet of the ozone generator is connected to the ozone balance gas tank via a No. 3 solenoid valve as an air inlet regulating valve; the high-pressure gas tank is connected to the high-pressure water tank via a No. 2 solenoid valve, the ozone balance gas tank is connected to the high-pressure water tank via a No. 1 solenoid valve, and the high-pressure water tank A micro-nano water mist nozzle is installed on it, and a first air inlet hole and a second air inlet hole are arranged at the rear end of the micro-nano water mist nozzle, the first air inlet hole is connected to the air outlet of the ozone balance gas storage tank through an ozone inlet pipe, the second air inlet hole is connected to the air, and guide plates are respectively arranged inside the first air inlet hole and the second air inlet hole, and the angle β between the guide plate and the tube wall of the micro-nano water mist nozzle is arctan (P1 / P0-P2), wherein P1 is the air inlet pressure of the micro-nano water mist nozzle, P2 is the negative pressure generated in the micro-nano water mist nozzle, and P0 is the atmospheric pressure.

[0008] The present invention makes full use of the adsorption effect of ultrafine nano water mist on dust to accelerate dust settling, and at the same time, uses the high-pressure gas output from the high-pressure gas storage tank to provide a power source to spray the double fluid mixed with ozone and ultrafine water mist over a long distance: in this process, ozone not only enters the high-pressure water storage tank and mixes with water to form ozone water, but also when the ozone water is input into the micro-nano water mist nozzle by high pressure, the negative pressure environment formed in the micro-nano water mist nozzle at the rear end of the micro-nano water mist nozzle is used to replenish ozone and air in the sprayed water mist again, so that the sprayed water mist becomes a double fluid state of gas and fluid mixed for high-speed spraying, fully enhancing the ozone dissolved content in the sprayed water mist particles (up to 9 mg / L at room temperature), and also plays a role in enhancing the atomization effect, thereby utilizing the strong oxidizing property of ozone to decompose toxic and harmful gases in smoke and eliminate blasting odor, greatly improving the removal efficiency of carbon monoxide and nitrogen monoxide.

[0009] In the present invention, a guide plate is cleverly arranged at the first air inlet and the second air inlet at the rear end of the micro-nano water mist nozzle, and the angle β between the guide plate and the pipe wall of the micro-nano water mist nozzle is arctan (P1 / P0-P2), so that the pipe diameter at the rear end of the micro-nano water mist nozzle changes from large to small, ensuring the formation of a negative pressure environment, and further ensuring that the water mist is sprayed out at a high speed and a long distance. The experimental results show that the water mist spraying distance of the present invention can reach 120m, and the ultra-fineness of the water mist can reach 2 -10 Micron level.

[0010] Preferably, an industrial control machine, a gas monitoring sensor, and a vibration sensor are also installed on the mobile base, and the industrial control machine is connected to the air booster pump, the ozone generator, and the No. 1 solenoid valve, the No. 2 solenoid valve, the No. 3 solenoid valve, the No. 4 solenoid valve, the gas monitoring sensor, and the vibration sensor. In this way, the industrial control machine can adjust the working power of the ozone generator, the water mist spraying time, the ozone mixing amount, the gas tank pressure, the equipment startup time, the gas monitoring frequency, etc.

[0011] Preferably, the air booster pump is provided with an air inlet, and the air booster pump is equipped with a battery for power supply, so as to facilitate the use of the air booster pump to fill the high-pressure gas storage tank with gas and to pressurize the added gas.

[0012] Preferably, the No. 2 solenoid valve is a large-flux high-speed solenoid valve. When the No. 2 solenoid valve is opened, the high-pressure gas in the high-pressure gas storage tank quickly and in large quantities enters the high-pressure water storage tank, providing powerful power for water mist injection, and the instantaneous power can reach 190kw.

[0013] Preferably, the air source of the air booster pump is compressed air or CO2.

[0014] Based on the same inventive concept, the present invention also provides a purification method for the tunnel smoke water mist ozone purification device, which generates ozone through an ozone generator and sends the generated ozone to an ozone balance gas tank for storage. When the stored ozone pressure reaches a set value, the ozone in the ozone balance gas tank enters the high-pressure water storage tank and mixes with water to form ozone water. On the other hand, when the micro-nano water mist nozzle is turned on to spray water mist, the ozone enters the rear end of the micro-nano water mist nozzle together with the air under the action of the negative pressure in the micro-nano water mist nozzle, and mixes with the ozone water absorbed from the high-pressure water storage tank to form a double-fluid state of gas and fluid mixture, which is sprayed out from the micro-nano water mist nozzle.

[0015] Preferably, the concentration of ozone water in the high-pressure water storage tank at room temperature is within 9 mg / L±9 mg / L*20%.

[0016] Preferably, the ozone pressure in the ozone balance gas storage tank is set to 1.5 MPa.

[0017] Preferably, for tunnel smoke with different hole diameters, the micro-nano water mist nozzle is opened with one or more heads, and a pressure relief valve is installed on the ozone balance gas storage tank. By adjusting the caliber and number of the pressure relief valve and the micro-nano water mist nozzle, the pressure of the ozone balance gas storage tank is controlled, and the spray distance and spray speed are adjusted to achieve a long-distance and wide-range spray coverage effect, and realize controllable spray time and flow. According to calculations, the present invention can spray 800L of water to a tunnel face 70m to 120m away within 20 seconds, and the power can reach 190kw, covering and extinguishing a large amount of dust generated by blasting.

[0018] Preferably, the industrial control machine controls the working power of the ozone generator, the design pressure of the ozone balance gas storage tank, the working pressure and time of the air booster pump, the water mist injection time, the ozone mixing amount in the high-pressure water storage tank, the pressure of the high-pressure gas storage tank (adjustable 1 to 3 MPa), the equipment startup time, and the gas monitoring frequency according to the concentration monitored by the gas sensor.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1) The high-pressure gas source provided by the high-pressure gas storage tank of the present invention can quickly atomize the water in the high-pressure water storage tank and form a high-speed, high-pressure water jet, which can quickly form a water mist curtain near the tunnel face, and can immediately suppress the diffusion of dust: because the water is atomized into micron-nanometer-level ultrafine water mist, it is more evenly dispersed and permeates the entire tunnel space, and has a better wrapping effect on fine dust; under the action of airflow disturbance and gravity sedimentation, the diffusion of dust near the face can be quickly suppressed and the sedimentation can be accelerated.

[0021] 2) The ozone in the sprayed water mist of the present invention can directly oxidize carbon monoxide and nitric oxide or react with the micro-nano bubble water mist to generate a large number of hydroxyl radicals. These hydroxyl radicals are active substances with extremely strong oxidizing ability and can quickly decompose odorous gases such as CO and NO.

[0022] 3) The present invention makes full use of the strong oxidation ability of ozone, the high adsorption of the extremely large specific surface area of ​​the dual-fluid micro-nano bubbles and the all-round coverage of instantaneous bubble explosion, thus solving the problems of large construction dust and fume pollution and low safety during engineering blasting.

[0023] 4) The device of the present invention is not only beneficial to smoke control in open-air environments, but also beneficial to reducing the ventilation time of underground chambers, and is also beneficial to the removal of toxic and harmful gases, which can greatly improve the construction efficiency of engineering blasting. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the structure of the water mist ozone purification device of the present invention;

[0026] Figure 2 It is an enlarged view of the structure of the water mist nozzle of the present invention.

[0027] Figure 3 This is a schematic diagram of the use environment of the present invention.

[0028] Figure 4 This is a diagram showing the effect of the present invention on CO removal.

[0029] In the attached figure: 1. air compressor intake valve; 2. air booster pump; 3. first pressure gauge; 4. high-pressure gas storage tank; 5. battery; 6. gas monitoring sensor; 7. industrial control machine; 8. ozone generator; 9. control cable; 10. pressure relief valve; 11. second pressure gauge; 12. ozone gas storage tank; 13. ozone intake pipe; 14. first air inlet; 15. micro-nano water mist nozzle; 16. water inlet valve; 17. high-pressure water storage tank; 18. mobile base; 19. No. 1 solenoid valve; 20. No. 2 solenoid valve; 21. No. 3 solenoid valve; 22. No. 4 solenoid valve; 23. second air inlet; 24. guide plate. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example 1

[0034] Reference Figure 1 As shown, an embodiment of the water mist ozone purification device of the present invention includes an air compressor intake valve 1, an air booster pump 2, a first pressure gauge 3, a high-pressure gas storage tank 4, a battery 5, a gas monitoring sensor 6, an industrial control machine 7, an ozone generator 8, a control cable 9, a pressure relief valve 10, a second pressure gauge 11, an ozone gas storage tank 12, an ozone intake pipe 13, a first air inlet 14, a micro-nano water mist nozzle 15, a water inlet valve 16, a high-pressure water storage tank 17, a mobile base 18, and a vibration sensor (not shown in the figure).

[0035] An air compressor inlet valve 1 is installed on the air inlet of the air booster pump 2, and the air outlet of the air booster pump 2 is connected to the air inlet of the high-pressure gas storage tank 4 through the No. 4 solenoid valve 22, so as to add gas and pressurize the high-pressure gas storage tank 4 through the air booster pump 2. The high-pressure gas source of the air booster pump 2 is compressed air or CO2.

[0036] The gas outlet of the ozone generator 8 is connected to the gas inlet of the ozone gas storage tank 12 through the No. 3 solenoid valve 21. The ozone gas storage tank 12 is installed with a pressure relief valve 10 and a pressure gauge 11. The No. 3 solenoid valve 21 is used as an air inlet regulating valve of the ozone gas storage tank 12.

[0037] The high-pressure gas storage tank 4 is connected to the high-pressure water storage tank 17 through the No. 2 solenoid valve 20, and the high-pressure gas is sent into the high-pressure water storage tank 17 through the No. 2 solenoid valve 20; the ozone gas storage tank 12 is connected to the high-pressure water storage tank 17 through the No. 1 solenoid valve 19, and the ozone is sent into the high-pressure water storage tank 17 through the No. 1 solenoid valve 19. The high-pressure gas storage tank 4 is also equipped with a first pressure gauge 3 for monitoring the gas pressure in the tank, and the ozone gas storage tank 12 is also equipped with a second pressure gauge 11 for monitoring the gas pressure in the tank. The high-pressure water storage tank 17 is equipped with a micro-nano water mist nozzle 15 and a water inlet valve 16 for replenishing water to the high-pressure water storage tank 17. The No. 2 solenoid valve 20 preferably adopts a large-flux high-speed solenoid valve, so that the high-pressure gas in the high-pressure gas storage tank 4 can quickly and massively enter the high-pressure water storage tank 17, providing a strong power for the water mist injection, so that its instantaneous power can reach 190kw.

[0038] A first air inlet 14 and a second air inlet 23 are arranged at the rear end of the micro-nano water mist nozzle 15. The first air inlet 14 is connected to the air outlet of the ozone balance gas storage tank 12 via the ozone inlet pipe 13, and the second air inlet 23 is connected to the air. Guide plates 24 are arranged inside the first air inlet 14 and the second air inlet 23 along the liquid flow direction, respectively, and each guide plate 24 forms a deflector. When the injection pressure is constant, the guide device is used to change the diameter of the pipe at the rear end of the micro-nano water mist nozzle from large to small along the flow direction of the fluid, thereby accelerating the fluid speed on the one hand, making the injection distance far enough to achieve continuous refinement of the water mist, and at the same time releasing the carbon dioxide gas in the water mist to produce bubble bursts, making the water mist particles finer to the micro-nano level particle size, and adsorbing and capturing tiny dust to achieve dust reduction. On the other hand, a negative pressure environment is formed in the pipe at the rear end of the micro-nano water mist nozzle, so that ozone can be introduced through the first air inlet 14 and air can be introduced through the second air inlet 24, thereby increasing the ozone content in the sprayed water mist, so that the sprayed water mist forms a dual-fluid form of gas + fluid, and utilizes the strong oxidizing property of ozone to decompose toxic and harmful gases in smoke, such as CO, NO, etc., to eliminate the blasting odor. The included angle β between the guide plate 24 and the wall of the micro-nano water mist nozzle is arctan(P1 / P0-P2), where P1 is the air inlet pressure of the micro-nano water mist nozzle, P2 is the negative pressure generated in the water mist nozzle, and P0 is the atmospheric pressure. The included angle β is preferably 35 degrees.

[0039] The mobile base 18 is a crawler-type mobile base, and the air booster pump 2, high-pressure gas storage tank 4, battery 5, gas monitoring sensor 6, industrial control machine 7, ozone generator 8, ozone gas storage tank 12, high-pressure water storage tank 17 and vibration sensor (not shown in the figure) are installed on the mobile base 18; the battery 5 is used to power the air booster pump 2; the gas monitoring sensor 6 is used to monitor the concentration of environmental dust and toxic gases, and confirm system action; the vibration sensor is used to monitor environmental vibration and trigger system action.

[0040] The air booster pump 2, ozone generator 8, solenoid valve No. 1 19, solenoid valve No. 2 20, solenoid valve No. 3 21, solenoid valve No. 4 22, vibration sensor, and gas monitoring sensor 6 are connected to the industrial control machine 7 via control cables 9, respectively, and each solenoid valve and electric drive accessory module are connected to the industrial control machine 7 via cables.

[0041] When the purification device of the present invention is working:

[0042] 1. First, start the ozone generator 8 in advance to produce and store ozone; then, simultaneously carry out water filling and debugging of the high-pressure water storage tank 17, gas filling and debugging of the high-pressure gas storage tank 4 and the ozone balance gas storage tank 12, and control the switches of various components through the industrial control machine 7. According to the working environment, the opening time of the No. 1 solenoid valve 19, the No. 2 solenoid valve 20, the No. 3 solenoid valve 21, and the No. 4 solenoid valve 22, the water mist flow rate of the micro-nano water mist nozzle, the injection time, etc. can be set in advance;

[0043] 2. By opening the No. 1 solenoid valve 19 in advance, ozone fills the ozone balance gas storage tank 12 while part of the ozone enters the high-pressure water storage tank 17 and dissolves in water to obtain ozone water;

[0044] 3. The air booster pump 1 injects air or carbon dioxide gas source into the high-pressure gas storage tank 4 through the No. 4 solenoid valve 22 and fills it up, fills the water in the high-pressure water storage tank 17 through the water inlet valve 16, turns on the equipment switch of the industrial control machine 7, and waits for the explosion sound to trigger the No. 2 solenoid valve 20 through the vibration sensor;

[0045] 4. High-pressure gas enters the high-pressure water storage tank 17 through the No. 2 solenoid valve 20 and mixes with ozone water. The water is pressed to the micro-nano water mist nozzle 15 and then quickly sprayed to the tunnel face. While spraying, the ozone balance gas tank 12 supplies ozone to the high-pressure water storage tank 17 through the No. 1 solenoid valve 19, and supplies ozone at the rear end of the micro-nano water mist nozzle 15 through the ozone inlet pipe 13 and the first air inlet 14. The air enters the rear end of the micro-nano water mist nozzle 15 from the second air inlet 24, so that the micro-nano water mist nozzle 15 sprays out ozone-rich dual-fluid (gas + liquid) water mist particles; in this process, a negative pressure environment is formed in the rear end of the micro-nano water mist nozzle 15 due to the flow of high-pressure water flow, the first and second air inlets and the setting of the inner guide plate 24, so that ozone and air can be smoothly replenished into the rear end of the micro-nano water mist nozzle 15, thereby forming a dual fluid.

[0046] 5. High-speed water mist jet sprays ozone-water mist dual-fluid particles around the smoke source at the face. The sprayed nano-water mist fully contacts and adsorbs the smoke solid particles to form large smoke particles and quickly settles, thereby achieving the dust reduction effect. At the same time, ozone reacts with water to generate hydroxyl free radicals with strong oxidizing ability, which quickly oxidize and decompose the CO, SO2, H2S, NH3, NO and other gases produced by the blasting, thereby achieving the effect of eliminating smoke. Figure 3 As shown, a monitoring instrument is installed in the tunnel, and the purification device of the present invention is used to conduct a tunnel dust reduction and removal test at a distance of 50 meters from the tunnel face. The experimental results are shown in Figure 4 As shown. Figure 4 It can be seen that the use of the ozone balance gas storage tank 12 in the purification device of the present invention can reduce the CO concentration from 37 mg / m 3 Reduce to 12 mg / m 3If the ozone balance tank 12 is not used for dust removal, the CO concentration can only be reduced to 28mg / m 3 Obviously, the ozone balance gas storage tank 12 used in the present invention can significantly reduce the concentration of environmental CO and NO.

[0047] The above is only a specific implementation scheme of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the art can make many possible changes and modifications to the technical scheme of the present invention by using the technical content disclosed above without departing from the scope of the technical scheme of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical scheme of the present invention should fall within the protection scope of the technical scheme of the present invention.

Claims

1. A tunnel smoke, dust, water mist and ozone purification device, comprising a mobile base, characterized in that: An air booster pump, a high-pressure gas tank, a gas monitoring sensor, an ozone generator, an ozone balance gas tank, and a high-pressure water tank are installed on the mobile base. The air booster pump is connected to the high-pressure gas tank via a No. 4 solenoid valve; the air outlet of the ozone generator is connected to the ozone balance gas tank via a No. 3 solenoid valve as an air inlet regulating valve; the high-pressure gas tank is connected to the high-pressure water tank via a No. 2 solenoid valve, and the ozone balance gas tank is connected to the high-pressure water tank via a No. 1 solenoid valve. A micro-nano water mist nozzle is installed on the high-pressure water tank. A first air inlet and a second air inlet are arranged at the rear end of the micro-nano water mist nozzle. The first air inlet is connected to the air outlet of the ozone balance gas storage tank via an ozone inlet pipe, and the second air inlet is connected to the air. Guide plates are arranged inside the first air inlet and the second air inlet along the liquid flow direction, respectively. The angle β between the guide plate and the tube wall of the micro-nano water mist nozzle is arctan(P1 / P0-P2), wherein P1 is the air inlet pressure of the micro-nano water mist nozzle, P2 is the negative pressure generated in the micro-nano water mist nozzle, and P0 is the atmospheric pressure.

2. The tunnel smoke, dust, water mist and ozone purification device according to claim 1 is characterized in that: An industrial control machine, a gas monitoring sensor, and a vibration sensor are also installed on the mobile base. The industrial control machine is connected to the air booster pump, the ozone generator, and the No. 1 solenoid valve, the No. 2 solenoid valve, the No. 3 solenoid valve, the No. 4 solenoid valve, the gas monitoring sensor, and the vibration sensor.

3. The tunnel smoke, dust, water mist and ozone purification device according to claim 2 is characterized in that: The air booster pump is provided with an air inlet, and the booster pump is equipped with a battery for power supply.

4. The tunnel smoke, dust, water mist and ozone purification device according to claim 2 is characterized in that: The No. 2 solenoid valve is a large-flux, high-speed solenoid valve.

5. The tunnel smoke, dust, water mist and ozone purification device according to claim 2 is characterized in that: The air source of the air booster pump is compressed air or CO2.

6. A purification method for a tunnel smoke, dust, water mist and ozone purification device as claimed in any one of claims 2 to 5, characterized in that: Ozone is generated by an ozone generator and sent to an ozone balance gas tank for storage. When the stored ozone pressure reaches a set value, the ozone in the ozone balance gas tank enters a high-pressure water tank to mix with water to form ozone water. On the other hand, when the micro-nano water mist nozzle is turned on to spray water mist, the ozone enters the rear end of the micro-nano water mist nozzle together with the air under the action of the negative pressure in the micro-nano water mist nozzle, and mixes with the ozone water drawn from the high-pressure water tank to form a double-fluid state of gas and fluid mixed, and is sprayed out from the micro-nano water mist nozzle.

7. The purification method of the tunnel smoke, dust, water mist and ozone purification device according to claim 6 is characterized in that: The concentration of the ozone water in the high-pressure water storage tank at room temperature is within 9 mg / L±9 mg / L*20%.

8. The purification method of the tunnel smoke, dust, water mist and ozone purification device according to claim 6 is characterized in that: The ozone pressure in the ozone balance gas storage tank is set to 1.5 MPa.

9. The purification method of the tunnel smoke, dust, water mist and ozone purification device according to claim 6 is characterized in that: The micro-nano water mist nozzles are opened singly or multiple times, and a pressure relief valve is installed on the ozone balance gas storage tank. By adjusting the caliber and number of the pressure relief valve and the micro-nano water mist nozzles, the pressure of the ozone balance gas storage tank is controlled, and the spraying distance and the spraying speed are adjusted.

10. The purification method of the tunnel smoke, dust, water mist and ozone purification device according to claim 6, characterized in that: The industrial control machine controls the working power of the ozone generator, the design pressure of the ozone balance gas storage tank, the working pressure and time of the air booster pump, the water mist injection time, the ozone mixing amount in the high-pressure water storage tank, the equipment startup time, and the gas monitoring frequency according to the concentration monitored by the gas sensor.

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