CN213725786U

CN213725786U - Catalytic combustion purification system for treating paint mist organic waste gas

Info

Publication number: CN213725786U
Application number: CN202021899798.5U
Authority: CN
Inventors: 王浩; 查伟尉; 沈寅彬
Original assignee: Jiangsu Xiruite Environmental Protection Technology Co ltd
Current assignee: Jiangsu Xiruite Environmental Protection Technology Co ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-07-20
Anticipated expiration: 2030-09-03

Abstract

The utility model discloses a catalytic combustion purification system for treating paint mist organic waste gas, which comprises a first draught fan, wherein the input end of the first draught fan is connected with a paint mist waste gas inlet pipe, the output end of the first draught fan is connected with a liquid tank, the right side of the liquid tank is provided with an oil removing tank, the right side of the oil removing tank is provided with a catalytic combustion machine body, the catalytic combustion machine body is internally and sequentially divided into a catalytic unit and a heating unit from top to bottom through a partition plate, the outlet end of the catalytic combustion machine body is connected with a third draught fan through a pipeline, the output end of the third draught fan is connected with an exhaust funnel, the first draught fan works to lead paint mist organic waste gas in a paint spray room or a paint baking room to pass through a liquid tank air inlet pipe, the bottom in the liquid tank is led in, the liquid tank is used for dust fall of the paint mist waste gas, oily substances and partial particulate matters are removed through the oil removing tank, and then the catalytic combustion machine body is heated and catalytically decomposed, and finally, under the action of a third induced draft fan, discharging the clean gas from the exhaust funnel.

Description

Catalytic combustion purification system for treating paint mist organic waste gas

Technical Field

The utility model relates to a coating cloud organic waste gas handles the field, specifically is a handle coating cloud organic waste gas's catalytic combustion clean system.

Background

A paint spray booth or a paint baking booth generates a large amount of paint mist waste gas in the operation process, the paint mist waste gas has the characteristics of low concentration and large air volume, and the direct emission of the paint mist waste gas can cause serious environmental pollution. The existing method generally comprises the steps of treating paint mist waste gas through a water curtain and water mist and then carrying out high-altitude discharge treatment, however, only some particulate matters and trace waste gas can be absorbed through the water curtain and water mist treatment, a large amount of waste gas is discharged into the atmosphere, and clean discharge cannot be achieved, so that environmental pollution is caused, and therefore, a catalytic combustion purification system for treating paint mist organic waste gas is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a handle paint mist organic waste gas's catalytic combustion clean system to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a catalytic combustion purification system for treating paint mist organic waste gas comprises a first draught fan, wherein the input end of the first draught fan is connected with a paint mist waste gas inlet pipe, the output end of the first draught fan is connected with one end of a liquid tank air inlet pipe, the other end of the liquid tank air inlet pipe is connected with the left side of the upper end face of a liquid tank and extends to the inner bottom side wall of the liquid tank, the middle part of the upper end face of the liquid tank is connected with a liquid inlet pipe, the right side of the upper end face of the liquid tank is connected with one end of a liquid tank air outlet pipe, the other end of the liquid tank air outlet pipe is connected with an inlet of a de-oiling tank, a plurality of paint mist cotton are arranged in the de-oiling tank, the right end face of the de-oiling tank is connected with a second draught fan through a pipeline, the output end of the second draught fan is connected with a catalytic combustion machine body, a partition plate is arranged in the catalytic combustion machine body, and the two ends of the partition plate transversely extend and are respectively and fixedly connected with the inner left side and the right side of the catalytic combustion machine body, set up a plurality of equidistant gas pockets on the baffle, catalytic unit and heating unit are separated into in proper order through baffle from the top down in the catalytic combustion organism, the exit end of catalytic combustion organism has the third draught fan through the pipe connection, the output of third draught fan is connected with the aiutage.

Preferably, a catalytic block is arranged in the catalytic unit, and the catalytic block is made of a honeycomb metal catalytic block or a ceramic catalytic block.

Preferably, a plurality of electric heating pipes are arranged in the heating unit.

Preferably, a dry filter is arranged on a connecting pipeline between the second induced draft fan and the catalytic combustion machine body, an inlet of the dry filter is communicated with an output end of the second induced draft fan through a pipeline, and an outlet of the dry filter is communicated with an inlet of the heating unit through a pipeline.

Preferably, a pipe connecting the dry filter and the heating unit is provided with an explosion venting sheet.

Preferably, the inner wall of the catalytic combustion engine body is provided with a heat insulation layer.

Compared with the prior art, the beneficial effects of the utility model are that: the first draught fan works to lead paint mist organic waste gas in a paint spraying room or a paint baking room to the bottom in the liquid box through a liquid box air inlet pipe, the liquid box is filled with water, the paint mist waste gas is subjected to dust fall in the liquid box to remove a large amount of particulate matters, the paint mist waste gas enters the oil removing box through a liquid box air outlet pipe above the liquid box, a plurality of paint mist cottons are arranged in the oil removing box and adsorb oily substances and partial particulate matters mixed with the paint mist waste gas, the paint mist waste gas is then led into the dry filter under the action of the second draught fan, the dry filter dries the paint mist waste gas, the dried paint mist waste gas enters a heating unit in the catalytic combustion machine body, an electric heating pipe in the heating unit heats the paint mist waste gas to the temperature of about 350 ℃, the paint mist waste gas enters the catalytic unit through an air hole in a partition plate, and catalytic decomposition is carried out on the waste gas by a catalytic block on the catalytic unit, and finally, under the action of a third induced draft fan, discharging the clean gas from the exhaust funnel.

Drawings

FIG. 1 is a schematic diagram of a main structure of a catalytic combustion purification system for treating paint mist organic waste gas;

FIG. 2 is a schematic sectional view of a main structure part of a catalytic combustion purification system for treating paint mist organic waste gas.

In the figure, 1-paint mist waste gas inlet pipe, 2-first induced draft fan, 3-liquid box air inlet pipe, 4-liquid inlet pipe, 5-liquid box air outlet pipe, 6-deoiling box, 7-second induced draft fan, 8-air hole, 9-catalytic block, 10-catalytic unit, 11-third induced draft fan, 12-exhaust funnel, 13-partition plate, 14-electric heating pipe, 15-heating unit, 16-dry filter, 17-catalytic combustion machine body, 18-paint mist cotton, 19-liquid box and 20-explosion venting sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a catalytic combustion purification system for treating paint mist organic waste gas comprises a first draught fan 2, wherein the input end of the first draught fan 2 is connected with a paint mist waste gas inlet pipe 1, the output end of the first draught fan 2 is connected with one end of a liquid tank air inlet pipe 3, the other end of the liquid tank air inlet pipe 3 is connected with the left side of the upper end face of a liquid tank 19 and extends to the inner bottom side wall of the liquid tank 19, the middle part of the upper end face of the liquid tank 19 is connected with a liquid inlet pipe 4, the right side of the upper end face of the liquid tank 19 is connected with one end of a liquid tank air outlet pipe 5, the other end of the liquid tank air outlet pipe 5 is connected with an inlet of a de-oiling tank 6, a plurality of paint mist cotton 18 are arranged in the de-oiling tank 6, the right end face of the de-oiling tank 6 is connected with a second draught fan 7 through a pipeline, the output end of the second draught fan 7 is connected with a catalytic combustion machine body 17, a baffle 13 is arranged in the catalytic combustion machine body 17, baffle 13 both ends lateral extension just respectively with catalytic combustion organism 17 in control side fixed connection, set up a plurality of equidistant gas pockets 8 on the baffle 13, separate into catalytic unit 10 and heating unit 15 through baffle 13 from the top down in proper order in the catalytic combustion organism 17, the exit end of catalytic combustion organism 17 has third draught fan 11 through the pipe connection, the output of third draught fan 11 is connected with aiutage 12.

The first induced draft fan 2 works to lead the paint mist organic waste gas in the paint spray booth or the paint baking booth into the bottom in the liquid tank 19 through the air inlet pipe 3 of the liquid tank, the liquid tank 19 is filled with water, carry out the dust fall with coating cloud waste gas in liquid tank 19, detach a large amount of particulate matters, liquid tank outlet duct 5 through liquid tank 19 top enters into deoiling case 6, be provided with a plurality of coating cloud cotton 18 in the deoiling case 6, coating cloud cotton 18 adsorbs coating cloud waste gas mixed oily material and partial particulate matter, again under the effect of second draught fan 7, coating cloud waste gas gets into the heating element 15 of the internal 17 of catalytic combustion machine, heating element 15 heats coating cloud waste gas, heat to temperature about 350 degrees, coating cloud waste gas gets into catalytic unit 10 through gas pocket 8 on baffle 13, catalytic unit 10 carries out catalytic decomposition with waste gas, at last under the effect of third draught fan 11, clean gas is discharged from aiutage 12.

The catalytic unit 10 is internally provided with a catalytic block 9, the catalytic block 9 is made of a honeycomb metal catalytic block or a ceramic catalytic block, and the catalytic block 9 has a honeycomb structure, so that the contact area of paint mist waste gas and a noble metal catalyst is greatly increased, the paint mist waste gas is fully combusted under the catalytic action of the noble metal, and the paint mist waste gas is converted into carbon dioxide and water.

A plurality of electric heating pipes 14 are arranged in the heating unit 15, and the electric heating pipes 14 are used for heating paint mist waste gas.

Be provided with dry filter 16 on second draught fan 7 and the catalytic combustion organism 17 connecting tube, dry filter 16's import passes through the output intercommunication of pipeline and second draught fan 7, dry filter 16's export passes through the pipeline and communicates with heating unit 15's import, and 16 carry out the drying to coating cloud waste gas among the dry filter.

The pipeline of the dry filter 16 connected with the heating unit 15 is provided with an explosion venting sheet 20, and the explosion venting sheet 20 is used for preventing the pressure of the device from bursting, so that the danger is avoided, and the explosion can be automatically vented.

The inner wall of the catalytic combustion engine body 17 is provided with a heat preservation layer, and the heat preservation layer is used for preserving heat, so that subsequent catalytic combustion reaction is facilitated.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a handle catalytic combustion clean system of coating cloud organic waste gas, includes first draught fan (2), its characterized in that: the input of first draught fan (2) is connected with lacquer mist waste gas and advances pipe (1), the output of first draught fan (2) is connected with liquid case intake pipe (3) one end, the up end left side of liquid case (19) is connected to the other end of liquid case intake pipe (3) and extends to the interior bottom lateral wall of liquid case (19), the up end middle part of liquid case (19) is connected with feed liquor pipe (4), the up end right side of liquid case (19) is connected with the one end of liquid case outlet duct (5), the other end of liquid case outlet duct (5) is connected with the import that removes oil tank (6), be provided with a plurality of lacquer mist cotton (18) in removing oil tank (6), the right-hand member face that removes oil tank (6) has second draught fan (7) through the pipe connection, the output of second draught fan organism (7) is connected with catalytic combustion (17), be provided with baffle (13) in the catalytic combustion organism (17), baffle (13) both ends lateral extension just respectively with catalytic combustion organism (17) about in side fixed connection, offer a plurality of equidistant gas pocket (8) on baffle (13), separate into catalytic unit (10) and heating element (15) in proper order through baffle (13) from the top down in catalytic combustion organism (17), there are third draught fan (11) exit end of catalytic combustion organism (17) through the pipe connection, the output of third draught fan (11) is connected with aiutage (12).

2. The catalytic combustion purification system for treating paint mist organic waste gas as claimed in claim 1, wherein: and a catalytic block (9) is arranged in the catalytic unit (10), and the material of the catalytic block (9) is a honeycomb metal catalytic block or a ceramic catalytic block.

3. The catalytic combustion purification system for treating paint mist organic waste gas as claimed in claim 2, wherein: a plurality of electric heating pipes (14) are arranged in the heating unit (15).

4. The catalytic combustion purification system for treating paint mist organic waste gas as claimed in claim 3, wherein: and a dry filter (16) is arranged on a connecting pipeline between the second draught fan (7) and the catalytic combustion machine body (17), the inlet of the dry filter (16) is communicated with the output end of the second draught fan (7) through a pipeline, and the outlet of the dry filter (16) is communicated with the inlet of the heating unit (15) through a pipeline.

5. The catalytic combustion purification system for treating paint mist organic waste gas as claimed in claim 4, wherein: and the pipeline connecting the dry filter (16) and the heating unit (15) is provided with an explosion venting sheet (20).

6. The catalytic combustion purification system for treating paint mist organic waste gas as claimed in claim 5, wherein: and the inner wall of the catalytic combustion engine body (17) is provided with a heat-insulating layer.