CN209997395U

CN209997395U - Exhaust gas treatment system

Info

Publication number: CN209997395U
Application number: CN201920571182.6U
Authority: CN
Inventors: 夏雄峰
Original assignee: HANGZHOU YUHANG ZHENHUA DAILY CHEMICALS GLASS CO Ltd
Current assignee: HANGZHOU YUHANG ZHENHUA DAILY CHEMICALS GLASS CO Ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-01-31
Anticipated expiration: 2029-04-24

Abstract

The utility model discloses a waste gas treatment system, including the waste gas collecting box that connects gradually, the spray column, the defroster, the rose box, the photocatalysis room, the adsorption tank, the waste gas collecting box is connected with a plurality of collecting pipes, all install the draught fan on every collecting pipe, the spray column includes the tower body, be located the collecting tank of tower body bottom, install the shower that is located the collecting tank top inside the tower body, the connecting pipe of connecting shower and collecting tank, install the high pressure water pump on the connecting pipe, install the filter screen above the collecting tank, install the intake pipe at the tower body lower extreme, install the outlet duct in the tower body upper end, the defroster includes the defogging case, install the absorption cage in the defogging case, the absorption cage includes two parallel arrangement's otter board, the otter board forms accommodation space with defogging incasement wall, the clean shot has been placed in the accommodation space, install the filter pulp in the rose box, install the activated carbon plate in the adsorption tank, the export.

Description

Exhaust gas treatment system

Technical Field

The utility model relates to an exhaust-gas treatment system.

Background

Paint and the like can generate waste gas in the spraying and UV electroplating production processes, and the current -like treatment mode is to discharge the waste gas into the atmosphere through a draught fan after water curtain treatment, defogging treatment and activated carbon adsorption treatment.

Also, patent publication No. CN105363332A discloses a electroplating waste gas treatment system, which comprises an electroplating pool, wherein an air suction hood is arranged at the upper end of the electroplating pool, waste gas from an air outlet of the air suction hood enters a dust remover, the removed waste gas enters a heat exchanger through a pipeline, a waste gas inlet and a waste gas outlet are arranged on the heat exchanger, two cooling water circulation ports are arranged on the waste gas outlet, and the waste gas is discharged from the waste gas outlet and enters a washing tower through the pipeline.

The waste gas treatment degree is not enough, and the discharged air contains more impurities such as particles and the like, so that the pollution is large.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, the utility model discloses a kinds of exhaust-gas treatment systems, the combustion gas is more environmental protection.

The technical scheme includes that the waste gas treatment systems comprise a waste gas collecting box, a spray tower, a demister, a filter box, a photocatalytic chamber and an adsorption box which are sequentially connected, the waste gas collecting box is connected with a plurality of collecting pipes, an induced draft fan is installed on each collecting pipe, the spray tower comprises a tower body, a liquid collecting tank located at the bottom of the tower body, spray pipes arranged inside the tower body and located above the liquid collecting tank, connecting pipes connected with the spray pipes and the liquid collecting tank, a high-pressure water pump installed on the connecting pipes, a filter screen installed above the liquid collecting tank, an air inlet pipe installed at the lower end of the tower body and an air outlet pipe installed at the upper end of the tower body, the demister comprises a demisting box and an absorption cage installed inside the demisting box, the absorption cage comprises two screen plates arranged in parallel, the screen plates and the inner wall of the demisting box form a containing space, hollow balls are placed in the containing space, filter cotton is installed inside the filter box, an activated carbon plate is installed inside the adsorption box, the outlet.

The waste gas enters the spray tower from the waste gas collecting box to remove dust particles, then enters the demister to remove water mist in the gas, enters steps through the filter box to adsorb particles, then is converted into inorganic matters through the photocatalytic chamber, then is removed with peculiar smell through the adsorption box, and finally is discharged from the discharge chimney through the exhaust fan.

, the tower body is further connected with a water replenishing pipe, a water replenishing valve is arranged on the water replenishing pipe, the water replenishing pipe is positioned above the filter screen, and the air inlet pipe is positioned below the filter screen.

Water in the collecting tank is pumped out through the high-pressure water pump and discharged from the spray pipe, the water from the spray pipe flows into the collecting tank again after passing through the filter screen to form circulation, water can be reduced in the process, therefore, a water replenishing pipe is needed to replenish water, the water replenishing pipe is located above the air inlet pipe, water can be directly replenished during operation, the dust removal effect can be improved, and the water replenishing valve is closed when the water replenishing valve does not work.

And , the air inlet pipe is arranged obliquely upwards from the joint of the air inlet pipe and the tower body, and the inclination angle of the air inlet pipe and the horizontal plane is 5-8 degrees.

The water level in the liquid collecting tank is not higher than the lowest end of the connecting part of the air inlet pipe and the tower body, so that the air is firstly contacted with the water level to carry out times of adsorption after entering, but the air is not easy to enter due to the overlarge inclination angle, and the inclination angle is designed to be 5-8 degrees.

Advancing steps, place the mounting panel in the collecting tank, the end that the mounting panel is close to the filter screen is fixed with the stabbing needle that corresponds with the mesh of filter screen, the fixed kickboard in mounting panel top, the kickboard sets up the end of keeping away from the intake pipe, the intake pipe is kept away from the end formation extension section of tower body, and the extension section upwards sets up from the end slope with intake-tube connection , and the high end of extension section is higher than the upper surface of filter screen, the drain pipe is installed to the collecting tank bottom, install the drain valve on the drain pipe.

the condition is because the kickboard is on it under, therefore the mounting panel is located the surface of water, guarantee that gaseous coming in back can with the surface of water contact, and the kickboard keeps away from the intake pipe setting, the influence that the kickboard caused is very little water gets into the back, the kickboard drives the installation come-up for stab the needle and insert the mesh of filter screen in and dredge the filter screen, and owing to the setting of extension section, the water in the collecting tank can not flow backwards, stab the needle simultaneously and also can be stained with water, can advance step edulcoration to gaseous.

And , the liquid collecting tank is in an inverted round table shape, and the joint of the connecting pipe and the liquid collecting tank is positioned at the bottom of the liquid collecting tank.

The water is conveniently concentrated and pumped away to the bottom of the liquid collecting tank.

, arranging two absorption cages at intervals, wherein the two absorption cages are arranged up and down.

Effectively improving the absorbed rate of the water mist.

, the filter cotton is arranged into two layers, and the two layers of filter cotton are arranged at intervals.

Double adsorption, the granule adsorption effect is better, and can reduce the change frequency.

To sum up, the utility model discloses following beneficial effect has: the utility model discloses simple structure, exhaust-gas treatment is with low costs, and gas emission is more environmental protection.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a schematic structural view of a spray tower;

FIG. 3 is a schematic illustration of a demister configuration;

fig. 4 is a schematic structural view of the filter box.

Reference numerals: 1. a waste gas collection tank; 11. a collection pipe; 12. an induced draft fan; 2. a spray tower; 21. a tower body; 22. a liquid collecting tank; 231. a shower pipe; 232. a connecting pipe; 24. a high pressure water pump; 25. a filter screen; 26. an air inlet pipe; 261. an extension section; 27. an air outlet pipe; 28. a water replenishing pipe; 281. a water replenishing valve; 29. a drain pipe; 291. a drain valve; 3. mounting a plate; 31. pricking a needle; 32. a floating plate; 4. a demister; 41. an absorption cage; 411. a screen plate; 412. hollow spheres; 42. a demisting box; 5. a filter box; 51. filtering cotton; 6. a photocatalytic chamber; 7. an adsorption tank; 81. an exhaust pipe; 82. discharging a chimney; 83. an exhaust fan.

Detailed Description

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

kinds of waste gas treatment system, including passing through waste gas collecting box 1, spray column 2, defroster 4, rose box 5, photocatalysis room 6, adsorption tank 7 of pipe connection in proper order.

The waste gas collecting box 1 is connected with a plurality of collecting pipes 11, each collecting pipe 11 is provided with an induced draft fan 12, and the absorption range of the collecting pipes 11 is .

The spray tower 2 comprises a tower body 21, a liquid collecting tank 22 arranged at the bottom of the tower body 21, a spray pipe 231 arranged above the liquid collecting tank 22 and arranged inside the tower body 21, a connecting pipe 232 for connecting the spray pipe 231 and the liquid collecting tank 22, a high-pressure water pump 24 arranged on the connecting pipe 232, a filter screen 25 welded above the liquid collecting tank 22, an air inlet pipe 26 arranged at the lower end of the tower body 21, and an air outlet pipe 27 arranged at the upper end of the tower body 21. The tower body 21 is cylindrical as a whole, the top of the tower body is an outward convex arc surface, the liquid collecting tank 22 is in an inverted circular truncated cone shape, and the joint of the connecting pipe 232 and the liquid collecting tank 22 is located at the bottom of the liquid collecting tank 22. The tower body 21 is also connected with a water replenishing pipe 28, a water replenishing valve 281 is arranged on the water replenishing pipe 28, the water replenishing pipe 28 is positioned above the filter screen 25, and the air inlet pipe 26 is positioned below the filter screen 25.

The inlet pipe 26 is arranged obliquely upwards from the connection part with the tower body 21, the inclination angle of the inlet pipe with the horizontal plane is 5-8 degrees, a extending section 261 is formed at the end of the inlet pipe 26 far away from the tower body 21, the extending section 261 is of a tubular structure, the extending section 261 is arranged obliquely upwards from the end connected with the inlet pipe 26, the high end of the extending section 261 is higher than the upper surface of the filter screen 25, the air outlet of the waste gas collecting box 1 is connected with the extending section 261, the mounting plate 3 is placed in the liquid collecting tank 22, the stabbing needle 31 corresponding to the meshes of the filter screen 25 is fixed at the end of the mounting plate 3 close to the filter screen 25, the floating plate 32 is fixed on the mounting plate 3, the floating plate 32 is arranged at the end far away from the inlet pipe.

The demister 4 comprises a demisting box 42 and an absorption cage 41 arranged in the demisting box 42, the absorption cage 41 comprises two meshed plates 411 which are arranged in parallel, the meshed plates 411 are plates with meshes, the meshed plates 411 and the inner wall of the demisting box 42 form an accommodating space, and hollow balls 412 are placed in the accommodating space; two absorption cages 41 are provided at intervals, and the two absorption cages 41 are provided one above the other.

The filter box 5 is internally provided with filter cotton 51, the filter cotton 51 is arranged in two layers, and the two layers of filter cotton 51 are arranged at intervals.

An activated carbon plate is installed in the adsorption tank 7, the outlet of the adsorption tank 7 is connected through an exhaust pipe 81 to discharge a chimney 82, and an exhaust fan 83 is installed on the exhaust pipe 81.

the floating board 32 is on the top, the floating board 32 surface is level with the water surface, so the mounting board 3 is under the water surface, it can ensure the gas to contact with the water surface after coming in, the waste gas enters the spray tower 2 from the waste gas collecting box 1 to remove the dust particles, then enters the demister 4 to remove the water fog in the gas, through the filter box 5 to absorb particles , then through the photocatalysis chamber 6 to convert the organic matter into inorganic matter, then through the absorption box 7 to remove the peculiar smell, finally through the exhaust fan 83 to discharge from the discharge chimney 82, after the water of the water replenishing pipe 28 enters, the floating board 32 drives the installation to float, so the poking needle 31 inserts into the mesh of the filter screen 25 to dredge the filter screen 25, and because of the setting of the extension segment 261, the water in the liquid collecting tank 22 will not flow backwards, at the same time the poking needle 31 will adhere with water, the gas can be cleaned step, the water surface height can be kept.

Claims

The waste gas treatment system is characterized by comprising a waste gas collecting box (1), a spray tower (2), a demister (4), a filter box (5), a photocatalytic chamber (6) and an adsorption box (7) which are sequentially connected, wherein the waste gas collecting box (1) is connected with a plurality of collecting pipes (11), each collecting pipe (11) is provided with an induced draft fan (12), the spray tower (2) comprises a tower body (21), a liquid collecting tank (22) positioned at the bottom of the tower body (21), a spray pipe (231) arranged in the tower body (21) and positioned above the liquid collecting tank (22), a connecting pipe (232) connected with the spray pipe (231) and the liquid collecting tank (22), a high-pressure water pump (24) arranged on the connecting pipe (232), a filter screen (25) arranged above the liquid collecting tank (22), an air inlet pipe (26) arranged at the lower end of the tower body (21), an air outlet pipe (27) arranged at the upper end of the tower body (21), the demister (4) comprises a demisting box (42), an absorption cage (41) arranged in the demisting box (42), the absorption cage (41) comprises two parallel arranged screens (411), the absorbing cage (41) and an absorbing cage (83) is connected with the inner wall of the absorbing box (81), the absorbing box (7) and an exhaust box (3582) is arranged in a chimney accommodating space (81), the absorbing box (7) and the absorbing box (.
2. The exhaust treatment system of claim 1, wherein: the tower body (21) still is connected with moisturizing pipe (28), be provided with moisturizing valve (281) on moisturizing pipe (28), moisturizing pipe (28) are located filter screen (25) top, intake pipe (26) are located filter screen (25) below.
3. The exhaust treatment system of claim 2, wherein: the air inlet pipe (26) is arranged from the connection part of the air inlet pipe and the tower body (21) in an inclined and upward mode, and the inclined angle of the air inlet pipe and the horizontal plane is 5-8 degrees.
4. The waste gas treatment system of claim 3, wherein mounting plates (3) are placed in the liquid collecting tank (22), the end of each mounting plate (3) close to the filter screen (25) is fixedly provided with a poking needle (31) corresponding to the meshes of the filter screen (25), a floating plate (32) is fixed above the mounting plate (3), the floating plate (32) is arranged at the end far away from the air inlet pipe (26), the end of the air inlet pipe (26) far away from the tower body (21) forms a extension section (261), the extension section (261) is obliquely and upwards arranged from the end connected with the air inlet pipe (26), the high end of the extension section (261) is higher than the upper surface of the filter screen (25), a drain pipe (29) is installed at the bottom of the liquid collecting tank (22), and a drain valve (291) is installed on the drain pipe (29).
5. The exhaust treatment system of claim 1, wherein: the liquid collecting tank (22) is in an inverted round table shape, and the connecting part of the connecting pipe (232) and the liquid collecting tank (22) is positioned at the bottom of the liquid collecting tank (22).
6. The exhaust treatment system of claim 1, wherein: the absorption cages (41) are arranged in two at intervals, and the two absorption cages (41) are arranged up and down.
7. The exhaust treatment system of claim 1, wherein: the filter cotton (51) is arranged in two layers, and the two layers of filter cotton (51) are arranged at intervals.