CN216498575U - Waste gas catalytic filtration equipment - Google Patents

Abstract

The utility model discloses a waste gas catalytic filtering device, which comprises a waste gas treatment box, wherein a first isolation plate and a second isolation plate are fixed in the waste gas treatment box, the first isolation plate and the second isolation plate divide the interior of the waste gas treatment box into a combustion chamber, a dust removal chamber and a filtering chamber from right to left, the second isolation plate and the side wall of the right end of the waste gas treatment box are fixedly connected through a dust collection plate, the combustion chamber is divided into a top catalytic area and a bottom combustion area by the dust collection plate, the dust removal chamber is divided into a top dust reduction area and a bottom heat exchange area by the dust collection plate, the upper end surface of the dust collection plate is an inclined surface with a height from left to right, a solid discharge pipe is arranged on the side wall of the waste gas treatment box at the lower part of the dust collection plate, an air inlet device is arranged in the filtering chamber, and an exhaust pipe is arranged at the top of the waste gas treatment box on the filtering chamber. The utility model has the advantage of low solid particle content in the discharged gas, and the purification effect is greatly improved by arranging structures such as combustion oxidation, catalytic purification, filtration and adsorption and the like.

Description

Waste gas catalytic filtration equipment

Technical Field

The utility model relates to the technical field of waste gas treatment, in particular to waste gas catalytic filtration equipment.

Background

In industrial production, a lot of waste gas is generated, and the waste gas contains various harmful substances such as alcohols, aldehydes, sulfur oxides, nitrogen oxides and the like in addition to a lot of dust particles. The exhaust gas must be treated so that it meets emission standards in order to be emitted.

The equipment for treating waste gas in the prior art mostly adopts a structure combining catalysis and filtration to treat the waste gas and obtain good purification effect. However, in a general exhaust gas treatment device, dust particles in the exhaust gas cannot be treated in a concentrated manner, so that the discharged gas contains a large amount of solid particles. To this end, we propose an exhaust gas catalytic filtration device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide exhaust gas catalytic filtering equipment which has the advantage of low solid particle content in exhausted gas, is provided with structures such as combustion oxidation, catalytic purification, filtering adsorption and the like, greatly improves the purification effect and solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an exhaust gas catalytic filtration equipment, includes the exhaust-gas treatment case, exhaust-gas treatment incasement portion is fixed with division board one and division board two, division board one with division board two will combustion chamber, clean room and filter chamber are divided into in proper order from the right side to a left side to exhaust-gas treatment incasement portion, division board two with through collecting plate fixed connection between the exhaust-gas treatment case right-hand member lateral wall, the collecting plate will the combustion chamber is separated for the catalytic domain at top and the combustion domain of bottom, the collecting plate will the clean room is separated for the heat transfer district that falls dirt district and bottom at top, the collecting plate up end is the inclined plane of low side height, be provided with the solid discharge pipe on the lateral wall of the exhaust-gas treatment case of collecting plate low department, filter chamber internally mounted has air inlet unit, the top of the exhaust-gas treatment case on the filter chamber is provided with the blast pipe.

Preferably, the air inlet device comprises a converging pipe located below the inner part of the filtering chamber, an air inlet pipe communicated with the converging pipe is installed on the waste gas treatment box, dispersing pipes are evenly arranged on the converging pipe, and an air outlet end of each dispersing pipe penetrates through the heat exchange area and extends to the inner part of the combustion area.

Preferably, a burner for burning the exhaust gas discharged from the dispersion pipe is installed at the bottom of the combustion zone.

Preferably, a chimney is fixed on a dust collecting plate of the combustion chamber, a smoke inlet matched with the chimney is formed in the dust collecting plate, and a catalyst plate is arranged on the inner side of the top wall of the waste gas treatment box right above the chimney.

Preferably, a smoke outlet used for communicating the catalytic zone and the dust fall zone is formed in the first isolation plate above the dust collection plate, a gas outlet is formed in the left side of the dust collection plate of the dust fall zone, toothed baffles which are vertically staggered are fixed inside the dust fall zone on the right side of the gas outlet, and a zigzag air flow channel is formed between the toothed baffles which are vertically staggered.

Preferably, a circulation port is formed in the second isolation plate below the dispersion pipe.

Preferably, a filter plate is fixed inside the filter chamber above the air inlet device.

Preferably, the top of the waste gas treatment box is provided with a fan, and the air inlet end of the fan is connected with the air outlet end of the exhaust pipe in a sealing manner.

Preferably, the discharge end of the solid discharge pipe is provided with a sealing plug.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, high-temperature waste gas is sprayed to the catalyst plate through the chimney, a part of harmful substances in the waste gas are catalyzed, particulate matters in the waste gas are knocked down by the catalyst plate and fall on the dust collecting plate, then the waste gas enters the dust settling area through the smoke outlet, the waste gas flows through the zigzag airflow channel, most of solid particulate matters in the waste gas are knocked down by the staggered toothed baffles and fall on the dust collecting plate, and the solid particulate matters falling on the dust collecting plate are finally discharged in a concentrated manner through the solid discharge pipe, so that the content of the solid particulate matters in the waste gas is greatly reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a dust chamber according to the present invention;

FIG. 3 is a schematic view of the structure of the combustion chamber of the present invention.

In the figure: 1. a waste gas treatment tank; 101. a first isolation plate; 102. a second isolation plate; 2. a solid matter discharge pipe; 201. a sealing plug; 3. an air inlet pipe; 4. an exhaust pipe; 5. a dust collecting plate; 6. a chimney; 7. a catalyst plate; 8. a converging tube; 801. a dispersion pipe; 9. a toothed baffle; 10. a fan; 11. a filter plate; 12. a burner.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 3, the present invention provides a technical solution: an exhaust gas catalytic filtering device comprises an exhaust gas treatment box 1, a first isolation plate 101 and a second isolation plate 102 are fixed inside the exhaust gas treatment box 1, the first isolation plate 101 and the second isolation plate 102 divide the inside of the exhaust gas treatment box 1 into combustion chambers from right to left in sequence, dust removal chamber and filter chamber, through collecting plate 5 fixed connection between second division board 102 and the exhaust-gas treatment case 1 right-hand member lateral wall, collecting plate 5 separates the combustion chamber for the catalytic zone at top and the combustion zone of bottom, collecting plate 5 separates the dust removal chamber for the dust fall district at top and the heat transfer district of bottom, collecting plate 5 up end is the inclined plane of high left side low right side, be provided with solid discharge pipe 2 on the exhaust-gas treatment case 1's of collecting plate 5 low department lateral wall, the solid particulate matter that falls on collecting plate 5 finally concentrates through solid discharge pipe 2 and discharges, filter chamber internally mounted has air inlet unit, the top of exhaust-gas treatment case 1 on the filter chamber is provided with blast pipe 4.

The air inlet device comprises a gathering pipe 8 located below the inner portion of the filtering chamber, an air inlet pipe 3 communicated with the gathering pipe 8 is installed on the waste gas treatment box 1, a dispersing pipe 801 is evenly arranged on the gathering pipe 8, an air outlet end of the dispersing pipe 801 penetrates through the heat exchange area and extends to the inner portion of the combustion area, the gathering pipe 8 is arranged, and waste gas can be evenly discharged through the dispersing pipe 801.

The bottom of the combustion zone is provided with a burner 12 for burning the exhaust gas discharged from the dispersion pipe 801.

As shown in fig. 3, a chimney 6 is fixed on a dust collecting plate 5 of the combustion chamber, a smoke inlet matched with the chimney 6 is arranged on the dust collecting plate 5, a catalyst plate 7 is arranged on the inner side of the top wall of the exhaust gas treatment box 1 right above the chimney 6, the catalyst plate 7 takes a metal net formed by pressing a stainless steel metal plate as a base material, a mixture of TiO2, V2O5 and the like is adhered on the stainless steel net, and the exhaust gas treatment box is manufactured by pressing and calcining.

Offer the outlet flue that is used for communicateing catalysis district and dust fall district on the division board 101 of collection dirt board 5 top, the gas outlet has been seted up in the left side of the collection dirt board 5 in dust fall district, the dust fall district inside on gas outlet right side is fixed with the dentate baffle 9 of crisscross setting from top to bottom, be formed with tortuous air current channel between the dentate baffle 9 of crisscross setting from top to bottom, the inside waste gas of catalysis district enters into the dust fall district through the outlet flue, waste gas flows through tortuous air current channel, most solid particulate matter in the waste gas is hit by the dentate baffle 9 of crisscross setting this moment and falls, fall on collection dirt board 5, then waste gas enters into the heat transfer district through gas outlet.

A flow opening is formed in the second isolation plate 102 below the dispersion pipe 801, and gas inside the heat exchange area enters the filtering area through the flow opening.

The inside of the filter chamber of air inlet unit top is fixed with filter 11, and filter 11 includes the metal filter of top and bottom, and it has the active carbon to filter the cotton to fill between two metal filter, adsorbs effectual of removing dust.

The fan 10 is installed at the top of the waste gas treatment box 1, the air inlet end of the fan 10 is connected with the air outlet end of the exhaust pipe 4 in a sealing manner, and waste gas in the waste gas treatment box 1 is extracted outwards through the fan 10.

The discharge end of the solid discharge pipe 2 is provided with a sealing plug 201, and in operation, the solid discharge pipe 2 is sealed by the sealing plug 201, so that the waste gas in the waste gas treatment tank 1 can not be discharged through the solid discharge pipe 2.

During operation, waste gas enters the gathering pipe 8 through the gas inlet pipe 3, then enters the combustion area through the dispersion pipe 801, the burner 12 is opened, the waste gas is combusted, combustible harmful substances of the waste gas are purified, then the waste gas is directly sprayed to the catalyst plate 7 through the chimney 6, a part of harmful substances in the waste gas are catalyzed, meanwhile, when the waste gas is sprayed to the catalyst plate 7, a part of solid particles in the waste gas are collided and dropped on the dust collecting plate 5, then the waste gas enters the dust settling area through the smoke outlet, the waste gas flows through the zigzag airflow channel, at the moment, most of solid particles in the waste gas are collided and dropped by the staggered dentate baffles 9 and dropped on the dust collecting plate 5, the solid particles finally dropped on the dust collecting plate 5 are intensively discharged through the solid discharge pipe 2, and the waste gas in the dust settling area enters the heat exchange area through the gas discharge port on the dust collecting plate 5, then flows downwards through the gaps between the dispersion pipes 801, enters the filter chamber through the flow through ports, flows upwards through the gaps between the dispersion pipes 801, transfers heat to the dispersion pipes 801 when exhaust gas passes through the dispersion pipes 801, preheats the exhaust gas inside the dispersion pipes 801, thereby improving the effects of thermal decomposition and combustion oxidation, then passes through the filter plates 11, and finally is discharged through the exhaust pipe 4.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. An exhaust gas catalytic filtering apparatus comprising an exhaust treatment tank (1), characterized in that: a first partition plate (101) and a second partition plate (102) are fixed inside the waste gas treatment box (1), the first isolation plate (101) and the second isolation plate (102) divide the interior of the waste gas treatment box (1) into a combustion chamber, a dust removal chamber and a filter chamber from right to left in sequence, the second isolation plate (102) is fixedly connected with the side wall of the right end of the waste gas treatment box (1) through a dust collecting plate (5), the dust collecting plate (5) divides the combustion chamber into a top catalytic zone and a bottom combustion zone, the dust collecting plate (5) divides the dust removing chamber into a dust falling area at the top and a heat exchange area at the bottom, the upper end surface of the dust collecting plate (5) is an inclined plane with a higher left part and a lower right part, a solid discharge pipe (2) is arranged on the side wall of the waste gas treatment box (1) at the lower part of the dust collecting plate (5), an air inlet device is arranged inside the filtering chamber, and an exhaust pipe (4) is arranged at the top of the waste gas treatment box (1) on the filtering chamber.

2. The exhaust gas catalytic filtering apparatus according to claim 1, characterized in that: the air inlet device comprises a gathering pipe (8) located below the inner portion of the filtering chamber, an air inlet pipe (3) communicated with the gathering pipe (8) is installed on the waste gas treatment box (1), dispersing pipes (801) are evenly arranged on the gathering pipe (8), and an air outlet end of each dispersing pipe (801) penetrates through the heat exchange area and extends to the inner portion of the combustion area.

3. The exhaust gas catalytic filtering apparatus according to claim 2, characterized in that: the bottom of the combustion zone is provided with a burner (12) for burning the exhaust gas discharged from the dispersion pipe (801).

4. The exhaust gas catalytic filtering apparatus according to claim 1, characterized in that: a chimney (6) is fixed on a dust collecting plate (5) of the combustion chamber, a smoke inlet matched with the chimney (6) is formed in the dust collecting plate (5), and a catalyst plate (7) is arranged on the inner side of the top wall of the waste gas treatment box (1) right above the chimney (6).

5. The exhaust gas catalytic filtering apparatus according to claim 1, characterized in that: a smoke outlet used for communicating a catalytic area with a dust fall area is formed in the first isolation plate (101) above the dust collection plate (5), a gas outlet is formed in the left side of the dust collection plate (5) of the dust fall area, toothed baffles (9) which are arranged in a vertically staggered mode are fixed inside the dust fall area on the right side of the gas outlet, and a zigzag air flow channel is formed between the toothed baffles (9) which are arranged in a vertically staggered mode.

6. The exhaust gas catalytic filtering apparatus according to claim 2, characterized in that: and a circulation port is formed on the second isolation plate (102) below the dispersion pipe (801).

7. The exhaust gas catalytic filtering apparatus according to claim 1, characterized in that: and a filter plate (11) is fixed in the filter chamber above the air inlet device.

8. The exhaust gas catalytic filtering apparatus according to claim 1, characterized in that: a fan (10) is installed at the top of the waste gas treatment box (1), and the air inlet end of the fan (10) is connected with the air outlet end of the exhaust pipe (4) in a sealing mode.

9. The exhaust gas catalytic filtering apparatus according to claim 1, characterized in that: and a sealing plug (201) is arranged at the discharge end of the solid discharge pipe (2).

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