CN108514788A - Integrated cascade waste gas treatment equipment - Google Patents

Abstract

The invention discloses a kind of integrated cascade waste gas treatment equipments, it is characterised in that it includes cascade spray booth (200), UV photooxidations equipment (400) and the centrifugal blower (300) for blowing from the cascade spray booth (200) to the UV photooxidations equipment (400) being connected between the cascade spray booth (200) and the UV photooxidations equipment (400)；Air is led in the outlet of the UV photooxidations equipment (400) by exhaust duct (500)；Organic matter in exhaust gas can be decomposed into water and carbon dioxide by UV photooxidations equipment；To realize the high-efficient purification to volatile organic compounds.This equipment is that integration manufactures, and regulation effect is good, easy to maintain, and service life is long；While being integrated reduction cost, unnecessary air hose connecting pipe can also be reduced, windage is greatly reduced, equally administers exhausted air quantity, wind turbine selected by this equipment will be much smaller than the power of fan of the abatement equipment of other producers, can thus achieve the effect that energy-saving and emission-reduction.

Description

Integrated water curtain waste gas treatment equipment

technical field

The invention relates to the technical field of air treatment, and more specifically relates to an integrated water curtain waste gas treatment equipment.

Background technique

At present, products such as furniture, solid wood doors, handicrafts, bathrooms, and machinery manufacturing all require painting and surface treatment. Spraying paint is to spray paint evenly on the surface of the object through a spray gun. The painting work is generally carried out in a closed painting room, and the painting will make the air in the painting room rich in paint mist. The paint spraying operator uses a spray gun to spray the workpiece during the painting operation, and the excess paint exhaust gas will splash around. The paint mist not only pollutes the surrounding environment, but also affects the health of the operator. In order to solve the above problems, water curtain spray booths are generally set up at the work site to absorb paint mist and dust. In the prior art, the paint mist and dust in the water curtain spray booth are mixed with water, and then the water circulates through the water pump to pump water, and then it is transported to the water tank through the pipeline, and then overflows the water curtain plate, absorbs the paint mist and dust, and discharges it into the atmosphere, damaging the environment. create pollution. Due to the harsh working environment, a lot of paint mist and dust fall into the water, which is easy to cause damage to the water pump.

Moreover, the existing water curtain spray cabinets cannot control volatile organic waste gases. Some volatile organic waste gases (such as aromatic hydrocarbons, etc.) will damage people's health. People who are exposed to polluted air for a long time will cause cancer or other serious diseases, such as benzene It damages the hematopoietic function of bone marrow and is a carcinogen; toluene and xylene have a strong anesthetic effect on the central nervous system; vinyl chloride is a carcinogen. There have been many fatal incidents of workers caused by "triphenyl" poisoning, and the solvents used in the paint industry are mainly toluene, xylene and other toxic organic substances. Photochemical smog can also harm human health and plant growth.

With the strengthening of environmental protection awareness and the country's emphasis on environmental protection supervision, the existing water curtain spray cabinets are no longer suitable for surface spray painting operations. In view of the above problems, it is necessary to make further improvements to the water curtain painting cabinet.

Contents of the invention

The purpose of the present invention is to solve the above-mentioned problems in the prior art, thereby providing an environmentally friendly water curtain spray booth to overcome the existing problems of the existing water curtain spray booth and the disadvantages of causing environmental pollution.

In order to achieve the above object, the present invention provides an integrated water curtain waste gas treatment equipment, including a water curtain painting cabinet, UV photo-oxygen equipment, and a device for connecting between the water curtain painting cabinet and the UV photo-oxygen equipment. A centrifugal fan for blowing air from the water curtain spray booth to the UV photooxygen equipment; the outlet of the UV photooxygen equipment leads to the atmosphere through an exhaust duct.

The water curtain painting cabinet includes a cabinet body, a suction hood arranged on the top of the cabinet body, and a water storage tank provided at the bottom of the cabinet body. A lower water curtain plate is arranged, and an upper water curtain plate is arranged above the lower water curtain plate.

The lower part of the lower water curtain plate is a smooth curved surface that bends toward the airflow channel, and forms a first air inlet leading to the airflow channel between the lower part of the lower water curtain and the bottom plate of the cabinet.

The lower part of the upper water curtain plate is a smooth curved surface bent toward the direction of the airflow channel, and forms a second air inlet leading to the inside of the airflow channel with the top of the lower water curtain plate.

The bottom of the air flow passage is provided with a deflector near the backboard of the cabinet, the deflector is in an arc shape sunken inward, and the two ends of the deflector are respectively fixed on the cabinet back and bottom plate.

The top rear side of the upper water curtain plate is provided with a first overflow groove that can overflow the outer surface of the upper water curtain plate, and the top rear side of the lower water curtain plate is provided with a first overflow tank that can overflow to the lower water curtain plate The second overflow tank for the overflow of the outer panel surface.

And the bottom end of the upper water curtain is located directly above the second overflow tank; the first overflow tank is supplied with water through a water inlet pipe.

The two sides of the lower water curtain plate and the upper water curtain plate are welded with a plurality of bolt connection plates at intervals, and are fixed to the side plates of the cabinet by bolts, and the lower water curtain plate and the upper water curtain plate are connected to the upper water curtain plate. The side panels of the above-mentioned cabinets are sealed by sealing strips.

The middle part of the air flow channel is provided with multiple groups of spraying devices from top to bottom, and each group of spraying devices includes a horizontally arranged spray layer and a packing layer arranged below the spray layer; the spray The layer is composed of a plurality of shower heads with solid umbrella surfaces, and the water inlets of the shower heads are all connected to the water inlet pipe; the spray layer sprays water above the packing layer.

A set of steam-water separators is horizontally covered on the top horizontal section of the air flow channel; each of the steam-water separators is composed of a plurality of corrugated plates arranged vertically parallel to each other, and vertical corrugations are formed between the multiple corrugated plates shaped separation channels.

A detachable inspection panel is provided at the upper rear part of the cabinet corresponding to the steam-water separator.

The water outlet at the bottom of the water storage tank is connected to the inlet of the circulation pump, and the outlet of the circulation pump is connected to the water inlet pipe.

In the above environment-friendly water curtain machine, in a preferred mode, the suction hood is a funnel-shaped structure with a large top and a small bottom, and the bottom end of the suction hood is plugged into the top of the airflow channel and sealed with a sealant.

In the above-mentioned environment-friendly water curtain machine, in a preferred mode, an inspection hole is opened on the back plate of the cabinet where the spraying device is located, and an inspection panel is covered on the inspection hole, and the top of the inspection panel is It is hinged with the backboard of the cabinet body through a hinge, and a handle is arranged on the outer surface of the access panel.

In the above environment-friendly water curtain machine, in a preferred mode, a protective plate is provided on the rear side of the cabinet, and the upper and lower ends of the protective plate are detachably connected to the cabinet.

In the preferred mode of the above environment-friendly water curtain machine, the packing layer is formed by stacking a plurality of polypropylene Pall rings.

The above-mentioned environment-friendly water curtain machine, in a preferred mode, the UV light oxygen equipment includes a housing, the front end of the housing is an air inlet, and the rear end of the housing is an air outlet; the inside of the housing is from the air inlet To the air outlet, install the air homogenizer, paint mist cotton, first UV module, second UV module, and activated carbon cotton in sequence;

A plurality of matrix-distributed short-band UV lamps are installed on the first UV module; a plurality of matrix-distributed long-band UV lamps are installed on the second UV module;

The photocatalytic net is located between a plurality of short-band UV lamps or long-band UV lamps in the first UV module and the second UV module.

In the preferred mode of the above-mentioned environment-friendly water curtain machine, the photocatalytic nets are arranged in 3 to 6 rows.

In the above environment-friendly water curtain machine, in a preferred mode, the wavelength of ultraviolet light generated by the short-wavelength UV lamp tube is 185nm; the wavelength of ultraviolet light generated by the long-wavelength UV lamp tube is 254nm.

The beneficial effects of the present invention are:

The spray paint particles mainly merge with the water curtains flowing down from the lower and upper water curtains and then flow into the water storage tank at the bottom. The remaining small amount of spray paint particles enters the airflow channel through the first air inlet and the second air inlet, and is further processed by the spray device and the steam separator; the second air inlet of the present invention is located between the upper water curtain and the lower water curtain , its position is on the upper part of the water curtain machine, which can absorb the spray paint particles diffused to the upper part of the water curtain machine at the same time, so as to achieve better indoor purification effect.

The lower part of the upper water curtain plate and the lower water curtain plate are set as smooth curved surfaces that bend toward the direction of the airflow channel, and play a role in guiding the incoming air, so that the airflow can be sucked into the first air inlet or the second air inlet smoothly and quickly. middle.

In the present invention, a deflector is provided at the bottom of the airflow channel close to the backboard of the cabinet, and the deflector is in the shape of an arc sunken inward, and the deflector can guide the airflow entering the first air inlet to flow upward gently.

The present invention adopts the overflow method to form a water curtain on the upper water curtain plate and the lower water curtain plate. Compared with the traditional method of using a nozzle to spray water on the water curtain plate, the water curtain can be made more uniform and the throttling effect of the nozzle is avoided. , can reduce the power of the pump and save energy.

Both the upper water curtain and the lower water curtain are connected to the side plate of the cabinet body through the bolt connection plate and bolts, which can be easily disassembled and repaired, and are sealed with sealing rubber strips to avoid water on the upper water curtain and the lower water curtain. into the airflow channel.

In the present invention, a spray system is arranged in the air flow channel, and the water energy sprayed out by the spray system is combined with the spray paint particles in the air flow channel for secondary fusion. The exhaust gas containing paint mist and dust enters the packing layer from the bottom, mixes and scours with the water mist sprayed by the spray layer above, and cleans the paint mist and dust in the exhaust gas; the exhaust gas cleaned by the packing layer continues to be washed by the spray layer , to further filter the paint mist and dust in the exhaust gas; after one water curtain cleaning, two filling layer cleanings and two spray layer cleanings, the paint mist and dust in the exhaust gas are quite small, and the cleaning effect is significantly better than that of traditional equipment improve.

A steam-water separator is also provided above the air-flow channel, and a small amount of spray paint particles flowing to the top of the air-flow channel and water droplets carrying paint spray particles will mostly adhere to the corrugated plate when passing through the separation channel of the steam-water separator. The corrugated panels gather into larger water droplets and fall under the action of gravity, eventually falling into the water storage tank below. The air that finally enters the hood is virtually free of paint particles.

A detachable inspection board is arranged at the upper rear side of the cabinet corresponding to the steam-water separator; when the steam-water separator needs to be inspected, the inspection board can be removed, which is very convenient for maintenance.

The present invention is equipped with UV photooxygen equipment, and the waste gas cleaned by the water curtain paint spraying cabinet enters the equipment from the air inlet at the front end of the UV photooxygen equipment, and the air homogenizer can physically capture the particles in the airflow, and at the same time make the airflow cover the entire UV processing equipment; The paint mist cotton filters out small particles of water mist, paint mist and dust in the waste gas; the filtered waste gas is left with volatile organic waste gas, and the short-wavelength UV lamp tube on the first UV module generates ultraviolet light with a wavelength of 185nm Oxygen molecules are converted to generate ozone, and a catalytic oxidation reaction occurs under the action of the photocatalyst. At the same time, the ultraviolet light with a wavelength of 254nm generated by the long-wave UV lamp on the second UV module converts ozone into a strong oxidant OH, and then converts the exhaust gas The organic matter is decomposed into water and carbon dioxide; thus realizing the efficient purification of volatile organic compound waste gas.

This equipment is integrated manufacturing, with good treatment effect, convenient maintenance and long service life; while the integrated manufacturing reduces costs, it can also reduce unnecessary air pipe connection pipes, greatly reducing wind resistance, and also controls the amount of exhaust gas. The selected fan should be much smaller than the fan power of the treatment equipment of other manufacturers, so that the effect of energy saving and emission reduction can be achieved.

Description of drawings

Fig. 1 is a side view of the overall structure of the present invention;

Fig. 2 is a schematic diagram of the connection structure of the upper water curtain plate and the lower water curtain plate;

Fig. 3 is a partially enlarged schematic diagram of place b in Fig. 2;

Fig. 4 is the back view of overall structure of the present invention;

Fig. 5 is the rear view structure schematic diagram of water curtain painting cabinet among the present invention;

Fig. 6 is the structural representation of steam-water separator among the present invention;

Fig. 7 is a schematic diagram of the present invention in use;

Fig. 8 is a schematic diagram of the internal structure of the UV photo-oxygen device of the present invention.

In the figure, 1. Cabinet body, 2. Suction hood, 3. Air flow channel, 3a, first air inlet, 3b, second air inlet, 31, spray layer, 32, packing layer, 4, lower water curtain, 5. Upper water curtain plate, 6a, first overflow tank, 6b, second overflow tank, 10, water storage tank, 12, circulation pump, 13, water inlet pipe, 15, operating table, 16a, bolt connection plate, 16b , bolts, 16c, sealing rubber strip, 17, deflector, 18, protective plate, 100, steam-water separator, 100a, corrugated plate, 100b, separation channel, 101, inspection board, 200, water curtain painting cabinet, 300, Centrifugal fan, 400, UV light oxygen equipment, 401, air equalizer, 402, paint mist cotton, 403, short-band UV lamp tube, 404, photocatalytic net, 405, long-band UV lamp tube, 406, activated carbon cotton, 500 , Exhaust duct.

Detailed ways

As shown in Figures 1 to 7, the integrated water curtain waste gas treatment equipment of the present invention includes a water curtain painting cabinet 200, a UV photooxygen device 400, and is connected between the water curtain painting cabinet 200 and the UV photooxygen device 400. The centrifugal fan 300 used for blowing air from the water curtain spray booth 200 to the UV photo-oxygen device 400 between them; the outlet of the UV photo-oxygen device 400 leads to the atmosphere through an exhaust duct 500 .

The water curtain painting cabinet 200 includes a cabinet body 1, a suction hood 2 arranged at the top of the cabinet body 1, and a water storage tank 10 provided at the bottom of the cabinet body 1, and an air flow channel 3 is provided inside the cabinet body 1 A lower water curtain 4 is arranged at the front of the air passage 3 , and an upper water curtain 5 is arranged above the lower water curtain 4 .

The air suction hood 2 is a funnel-shaped structure with a large top and a small bottom. The bottom end of the air suction hood 2 is plugged into the top of the air flow channel 3 and sealed by a sealant.

The lower part of the lower water curtain 4 is a smooth curved surface that bends toward the airflow channel 3 , and forms a first air inlet 3a leading to the airflow channel 3 between the bottom plate of the cabinet body 1 .

The lower part of the upper water curtain 5 is a smooth curved surface that bends toward the airflow channel 3 , and forms a second air inlet 3 b leading to the inside of the airflow channel 3 with the top of the lower water curtain 4 .

The bottom of the airflow channel 3 is provided with a deflector 17 close to the backboard of the cabinet 1, the deflector 17 is in an arc shape sunken inward, and the two ends of the deflector 17 are respectively fixed On the backboard and bottom board of the cabinet body 1.

The top rear side of the upper water curtain plate 5 is provided with a first overflow groove 6a that can overflow the outer surface of the upper water curtain plate 5, and the top rear side of the lower water curtain plate 4 is provided with Describe the second overflow groove 6b where the outer plate surface of the lower water curtain plate 4 overflows.

And the bottom end of the upper water curtain 5 is located directly above the second overflow tank 6 b; the first overflow tank 6 a is supplied with water through the water inlet pipe 13 .

As shown in Fig. 2 and Fig. 3, a plurality of bolt connecting plates 16a are welded at intervals on both sides of the lower water curtain plate 4 and the upper water curtain plate 5, and are fixed to the side plates of the cabinet body 1 by bolts 16b, The lower water curtain plate 4 and the upper water curtain plate 5 are sealed with the side plate of the cabinet body 1 by a sealing rubber strip 16c.

As shown in Figure 1 and Figure 4, water flows into the first overflow tank 6a through the water inlet pipe 13, and overflows outward when the water inside the first overflow tank 6a is full; the overflowed water flows along the upper water curtain The front outer wall of the plate 5 flows down and flows into the inside of the second overflow tank 6b; when the water inside the second overflow tank 6b is full, it overflows outward again, and the overflowed water flows along the front outer wall of the lower water curtain 4 Flow down; flow into the water storage tank 10 at the bottom of the cabinet body 1 .

The overflow method is used to form a water curtain on the upper water curtain plate 5 and the lower water curtain plate 4. Compared with the traditional method of using a nozzle to spray water on the water curtain plate, the overflow method can make the formed water curtain more uniform and avoid The throttling effect of the nozzle is improved, the power of the pump can be reduced, and energy can be saved.

The lower parts of the upper water curtain 5 and the lower water curtain 4 are all arranged as smooth curved surfaces that bend toward the direction of the airflow channel 3, which acts as a guide for the incoming air, so that the airflow can be smoothly and quickly sucked into the first air inlet 3a or In the second air inlet 3b.

An operation platform 15 is arranged in front of the water storage tank 10, and the operator stands on the operation platform 15 to carry out painting operations, and part of the spray paint particles fall into the water storage tank 10 or are sprayed onto the lower water curtain plate 4 and flow into the water storage tank along with the water 10; most of the spray paint particles in the air are sucked into the first air inlet 3a and enter the airflow passage 3, and the spray paint particles diffused upward are absorbed by the water flow on the upper water curtain plate 5 and flow down with the water flow, or are sucked into The second air inlet 3b enters the airflow channel 3 . The suction effect through the second air inlet 3b can clean the spray paint particles in the air.

The middle part of the air flow channel 3 is provided with multiple sets of spraying devices from top to bottom, and each set of spraying devices includes a horizontally arranged spray layer 31 and a packing layer 32 arranged below the spray layer 31; Described spray layer 31 is made up of the shower head of a plurality of solid umbrella surfaces, and the water inlet of described shower head is all connected to described water inlet pipe 13; ; The packing layer 32 is formed by stacking a plurality of polypropylene Pall rings.

An inspection hole is provided on the back plate of the cabinet body 1 where the spraying device is located, and an inspection panel is covered on the inspection hole, and the top of the inspection panel is connected to the back of the cabinet body 1 by a hinge The panels are hinged, and a handle is provided on the outer surface of the access panel. When it is necessary to overhaul the spraying device, the inspection panel can be pulled apart by the handle, and the spraying device can be overhauled.

As shown in Figures 4 to 6, a set of steam-water separators 100 is spread across the top horizontal section of the airflow channel 3; each of the steam-water separators 100 is composed of a plurality of corrugated plates 100a arranged vertically parallel to each other A vertically corrugated separation channel 100b is formed between the plurality of corrugated plates 100a.

A detachable inspection panel 101 is provided at the upper rear part of the cabinet body 1 corresponding to the steam-water separator 100 . When the steam-water separator 100 needs to be inspected, the inspection board 101 can be removed, which is very convenient for inspection.

The rear side of the cabinet 1 is provided with a protective plate 18 , and the upper and lower ends of the protective plate 18 are detachably connected to the cabinet 1 . The upper and lower ends of the protective plate 18 are detachably connected to the cabinet body 1 . The detachable connections mentioned here may be clip connections, bolt connections, etc., which will not be described here. The purpose of setting the protective plate 18 is to protect the rear side of the cabinet body 1 from damage and increase the service life of the present invention.

As shown in FIG. 4 , the water outlet at the bottom of the water storage tank 10 is connected to the inlet of the circulation pump 12 , and the outlet of the circulation pump 12 is connected to the water inlet pipe 13 .

As shown in Figure 8, the UV photo-oxygen device 400 includes a housing, the front end of the housing is an air inlet, and the rear end of the housing is an air outlet; the inside of the housing is in turn from the air inlet to the air outlet Air homogenizer 401, paint mist cotton 402, first UV module, second UV module, activated carbon cotton 406 are set.

The first UV module is equipped with a plurality of short-wave UV lamps 403 distributed in a matrix; the second UV module is equipped with a plurality of long-wave UV lamps 405 distributed in a matrix; the short-wave UV lamps The wavelength of ultraviolet rays generated by the tube 403 is 185nm; the wavelength of ultraviolet rays generated by the long-wave UV lamp tube 405 is 254nm.

The photocatalytic net 404 is located between the short-band UV lamps 403 or the long-wave UV lamps 405 of the first UV module and the second UV module. The photocatalytic nets 404 are arranged in 3-6 rows.

As shown in Figure 1, the integrated water curtain waste gas treatment equipment of the present invention includes: a water curtain painting cabinet 200, a UV light oxygen equipment 400, a centrifugal fan 300, and an exhaust duct 500, and the base of the water curtain painting cabinet 200 is directly placed on the On the floor of the spray booth, the outlet of the water curtain spray booth 200 is connected to the inlet of the UV photooxygen equipment 400, and the outlet of the UV photooxygen equipment 400 is connected to the suction inlet of the centrifugal fan 300, and the centrifugal fan The exhaust port 300 is connected with the exhaust pipe 500, through which the waste gas that reaches the standard is discharged into the atmosphere.

During the painting process, the paint mist, dust and organic waste gas enter the water curtain spray booth 200 together under the action of the centrifugal fan 300, and most of the paint mist and dust are filtered out through the cleaning of the water curtain spray booth 200. A small amount of paint mist, dust and most of the organic waste gas continue to enter the UV light oxygen equipment 400 under the action of the suction force, and the paint mist cotton 402 inside the UV light oxygen equipment 400 can filter out the remaining paint mist and Dust and organic waste gas are decomposed into water and carbon dioxide or other harmless small molecular substances under the action of photocatalytic oxidation; finally, the qualified gas is discharged into the atmosphere through the centrifugal fan 300 and the exhaust duct 500 .

The water curtain painting cabinet 200 includes: a lower water curtain plate 4 and an upper water curtain plate 5, a water storage tank 10, a circulation pump 12, a water pump filter, two layers of spray heads 31, two layers of packing layers 32, and a layer of steam-water separation layer; the water storage tank 10 is arranged at the bottom of the water curtain painting cabinet 200, and the lower water curtain plate 4 will grow out of the water storage tank 10 side; The two-layer spray layer 31, the two-layer filler layer 32, and one deck of steam-water separation layer are arranged between the upper and lower water curtain plates 4 and the back cover of the water curtain spray booth 200, and the order from bottom to top is respectively the first packing layer, the first spray layer, the second packing layer, the second spray layer, and the steam-water separation layer; the suction port of the circulation pump 12 is connected with the water pump filter, and the water pump filter is placed in the storage At the bottom of the water tank 10, the outlet of the circulation pump 12 is connected to the spray heads of the two layers of spray layers through the water inlet pipe 13; the packing layer 32 is stacked to a certain height by numerous polypropylene Pall rings; the spray The shower layer 31 is made up of a plurality of solid umbrella surface spray heads, and the spray solid circle can cover the whole ventilation cross-sectional area.

As shown in Figure 7, the exhaust gas containing paint mist and dust enters the water curtain painting cabinet and passes through the water curtain, the first packing layer, the first spraying layer, the second packing layer, the second spraying layer, soda water, etc. Separation layer; when the exhaust gas containing paint mist and dust passes through the water curtain, the high-speed paint mist and dust directly impact on the water film of the water curtain, and the paint mist and dust contact and mix with water, and part of the paint mist and dust dissolves into the water. Part of it enters the next level with the wind; the exhaust gas containing paint mist and dust enters the first packing layer from the bottom, mixes and washes with the water mist sprayed by the sprinkler head above, and cleans the paint mist and dust in the exhaust gas; passes through the filler The exhaust gas cleaned by layer 32 continues to be washed by the spray layer to further filter the paint mist and dust in the exhaust gas; after one water curtain cleaning, two packing layer 32 cleaning and two spray layer 31 cleaning, the paint mist and dust in the exhaust gas The dust is quite small; the exhaust gas finally passes through the steam-water separation layer to separate the water mist in the exhaust gas, and the water mist flows back into the circulating water tank, and the exhaust gas continues to enter the next-level treatment equipment.

The UV photooxygen device 400 includes: a housing, an air homogenizer 401, paint mist cotton 402, a first UV module, a second UV module, a photocatalytic net 404, and activated carbon cotton 406; the front end of the housing is an air inlet , the rear end of the housing is the air outlet; the air homogenizer 401 is installed in the housing and is located at the rear end of the air inlet; the internal equipment of the housing is the air homogenizer 401, the paint mist cotton 402, the first UV module, the second UV module, activated carbon cotton 406; the first UV module is equipped with a plurality of matrix-distributed short-band UV lamps 403; the second UV module is equipped with a plurality of matrix-distributed long-band The UV lamp tube 405 and the photocatalytic net 404 are located between the multiple short-band UV lamp tubes 403 or long-band UV lamp tubes 405 of the first UV module and the second UV module, and generally 3-6 rows of photocatalytic nets 404 are arranged .

The wavelength of ultraviolet light generated by the short-wave UV lamp tube 403 is 185nm. The wavelength of ultraviolet light generated by the long-wave UV lamp tube 405 is 254nm.

The exhaust gas cleaned by the water curtain spray booth 200 enters the equipment from the air inlet at the front end of the UV photooxygen device 400, and the air equalizer 401 can physically capture the particles in the airflow, and at the same time, the airflow can be filled in the entire UV photooxygen device 400; The paint mist cotton 402 filters out the small particles of water mist, paint mist and dust in the exhaust gas; the filtered exhaust gas is left with volatile organic waste gas, and the short-band UV lamp 403 on the first UV module generates ultraviolet light with a wavelength of 185nm Oxygen molecules are converted to generate ozone, and a catalytic oxidation reaction occurs under the action of the photocatalyst of the photocatalytic net 404, and at the same time, the ultraviolet rays with a wavelength of 254nm generated by the long-wave UV lamp tube 405 on the second UV module convert ozone into a strong oxidant OH, and then decompose the organic matter in the exhaust gas into water and carbon dioxide; thus realizing the efficient purification of volatile organic compound exhaust gas.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (8)

1. a kind of integration cascade waste gas treatment equipment, which is characterized in that including cascade spray booth (200), UV photooxidation equipment (400) and be connected between the cascade spray booth (200) and the UV photooxidations equipment (400) for from the cascade The centrifugal blower (300) that spray booth (200) is blown to the UV photooxidations equipment (400)；The outlet of the UV photooxidations equipment (400) Lead to air by exhaust duct (500)；

The cascade spray booth (200) includes cabinet (1), the suspended hood (2) being arranged at the top of the cabinet (1) and setting The aqua storage tank (10) of cabinet (1) bottom, the cabinet (1) are internally provided with gas channel (3), the gas channel (3) The lower water curtain plate (4) of front setting, the upper water curtain plate (5) of top setting of the lower water curtain plate (4)；

The lower part of the lower water curtain plate (4) is the smooth surface being bent to the gas channel (3) direction, and with the cabinet (1) the first air inlet (3a) for leading to the gas channel (3) is formed between bottom plate；

The lower part of the upper water curtain plate (5) is the smooth surface being bent to the gas channel (3) direction, and with the lower cascade The top of plate (4), which is formed, leads to internal the second air inlet (3b) of the gas channel (3)；

Deflector (17), the deflector (17) is arranged in the bottom of the gas channel (3) at the backboard of the cabinet (1) The backboard and bottom plate of the cabinet (1) are separately fixed in the both ends of the arc-shaped being recessed inwardly, and the deflector (17) On；

Being equipped on rear side of the top of the upper water curtain plate (5) can be to the first overflow launder of the outer plate surface spilling water of the upper water curtain plate (5) (6a), the top rear side of the lower water curtain plate (4) is equipped with can be to the second overflow launder of the outer plate surface spilling water of the lower water curtain plate (4) (6b)；

And the bottom end of the upper water curtain plate (5) is located at the surface of second overflow launder (6b)；First overflow launder (6a) is supplied water by water inlet pipe (13)；

Multiple bolt plates (16a) are welded at the both sides interval of the lower water curtain plate (4) and the upper water curtain plate (5), and are passed through Bolt (16b) and the side plate of the cabinet (1) are fixed, the lower water curtain plate (4) and the upper water curtain plate (5) and the cabinet (1) it is sealed by sealing joint strip (16c) between side plate；

The middle part of the gas channel (3) is equipped with multigroup spray equipment from top to bottom, and spray equipment described in every group includes laterally setting The spraying layer (31) set, and packing layer (32) of the setting below the spraying layer (31)；The spraying layer (31) is by multiple The spray head of solid umbrella cover forms, and the water inlet of the spray head is connected to the water inlet pipe (13)；The spraying layer (31) It sprays water above to described filler layer (32)；

One group of steam-water separator (100) is laterally paved on the top horizontal section of the gas channel (3)；Each carbonated drink point It is made of multiple vertically arranged corrugated platings (100a) that are mutually parallel from device (100), shape between multiple corrugated platings (100a) At vertical undulatory split tunnel (100b)；

The upper back of the cabinet (1) and the dismountable inspection plate of the steam-water separator (100) corresponding section setting (101)；

The bottom water outlet of the aqua storage tank (10) is connected with the import of circulating pump (12), the outlet of the circulating pump (12) and institute Water inlet pipe (13) is stated to be connected.

2. environment-friendly type Water curtain machine according to claim 1, which is characterized in that the suspended hood (2) is up big and down small funnel The bottom end of shape structure, the suspended hood (2) is plugged on the top of the gas channel (3), and is sealed by fluid sealant.

3. environment-friendly type Water curtain machine according to claim 2, which is characterized in that the cabinet at where the spray equipment (1) opened up on backboard and set manhole, and access panel is set in the manhole upper cover, the top of the access panel by hinge with The backboard of the cabinet (1) is hinged, and handle is arranged in the access panel outer plate surface.

4. environment-friendly type Water curtain machine according to claim 3, which is characterized in that the rear side of the cabinet (1) is equipped with protective plate (18), the upper and lower ends of the protective plate (18) are removably attachable on the cabinet (1).

5. environment-friendly type Water curtain machine according to claim 1, which is characterized in that described filler layer (32) is by multiple polypropylene Bauers Ring stacks.

6. environment-friendly type Water curtain machine according to claim 1, which is characterized in that the UV photooxidations equipment (400) includes shell, institute The front end for stating shell is air inlet, and the rear end of the shell is air outlet；The enclosure interior from air inlet to air outlet successively Air Heater (401), coating cloud cotton (402), the first UV modules, the 2nd UV modules, activated carbon cotton (406) are set；

Multiple short-wave band UV lamp pipes (403) in matrix distribution are installed in the first UV modules；In the 2nd UV modules Multiple long-wave band UV lamp pipes (405) in matrix distribution are installed；

Photocatalysis net (404) be located at the first UV modules and the 2nd UV modules multiple short-wave band UV lamp pipes (403) or Between long-wave band UV lamp pipe (405).

7. environment-friendly type Water curtain machine according to claim 6, which is characterized in that 3~6 rows are arranged in the photocatalysis net (404).

8. environment-friendly type Water curtain machine according to claim 7, which is characterized in that the purple that the short-wave band UV lamp pipe (403) generates Outside line wavelength is 185nm；The ultraviolet wavelength that the long-wave band UV lamp pipe (405) generates is 254nm.