CN210448689U

CN210448689U - Industrial furnace tail gas dust removal VOCs degradation system

Info

Publication number: CN210448689U
Application number: CN201921154896.3U
Authority: CN
Inventors: 黎耀亮; 黄子戈; 翁赛琴
Original assignee: Guangzhou Jian'an Environmental Protection Technology Co ltd
Current assignee: Guangzhou Jian'an Environmental Protection Technology Co ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-05-05
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses an industrial furnace tail gas dust removal VOCs degradation system, including organic waste gas export and burning tail gas export, organic waste gas export be connected with first alkali lye spray column, burning tail gas export be connected with second alkali lye spray column, first alkali lye spray column with second alkali lye spray column between be equipped with alkali lye depositing reservoir and gas washing pond, first alkali lye spray column through first back flow with alkali lye depositing reservoir communicate, second alkali lye spray column through second back flow with alkali lye depositing reservoir communicate, through first alkali lye spray column and second alkali lye spray column respectively to organic waste gas and burning waste gas separately processing, improve the treatment effeciency, discharge harmless, pollution-free gas to the environment after rethread UV photocatalyst active carbon device and dust collector handle, realize industrial waste gas purification, the method is in line with green production and is beneficial to further development of enterprises.

Description

Industrial furnace tail gas dust removal VOCs degradation system

Technical Field

The utility model belongs to the technical field of tail gas purification and specifically relates to a VOCs degradation system that removes dust of industrial furnace tail gas is related to.

Background

In industrial production, a large amount of waste gas containing VOCs is often produced, the waste gas has great pollution to the environment, is not beneficial to treating the environmental quality of a workshop and influences the production environment, and meanwhile, the waste gas is generally processed by adopting a plasma technology, so that the cost is higher, the waste gas is not suitable for long-term development of small and medium-sized enterprises, and most of the enterprises are simply subjected to spray degradation, and the degradation efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an industrial furnace tail gas dust removal VOCs degradation system to solve the problem that proposes in the above-mentioned background art.

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

the utility model provides an industrial furnace tail gas dust removal VOCs degradation system, includes organic waste gas export and burning tail gas export, organic waste gas exit linkage have first alkali lye spray column, burning tail gas exit linkage have second alkali lye spray column, first alkali lye spray column with second alkali lye spray column between be equipped with alkali lye and deposit pond and scrubbing water pond, first alkali lye spray column through first back flow with alkali lye deposit the pond and be linked together, second alkali lye spray column through second back flow with alkali lye deposit the pond and be linked together, first alkali lye spray column top seted up first venthole, first venthole and UV photocatalyst active carbon device be linked together, second alkali lye spray column top seted up the second venthole, the second venthole be linked together with dust collector, first alkali lye spray column inside be equipped with first spray set, and a second spraying device is arranged in the second alkali liquor spraying tower.

As a further technical scheme of the utility model, first alkali lye spray column including arrange the first collection liquid chamber of bottom in and be located the first gas cavity of crossing at middle part, first spray set including being located first in the gas cavity spray board and first spray board on, first spray board and first last liquid pipe on be linked together, first spray board and first liquid pipe on be linked together, first liquid pipe on with alkali lye deposit the pond and be linked together, first collection liquid chamber pass through first reflux pipe with alkali lye deposit the pond and be linked together.

As a further technical scheme of the utility model, the second alkali lye spray tower including arrange the second of bottom in collect the liquid chamber and be located the second in middle part and cross the gas chamber, second spray set including being located the second cross the second of gas intracavity on spray board and the second spray board down, the second on spray board and second on the liquid pipe be linked together, the second under spray board and second lower liquid pipe be linked together, the second on the liquid pipe the second lower liquid pipe with alkali lye storage pool be linked together, the second collect the liquid chamber and pass through the second back flow with alkali lye storage pool be linked together.

As a further technical scheme of the utility model, UV photocatalyst activated carbon device include photocatalyst emergence layer, first absorption sponge layer and activated carbon layer from bottom to top, photocatalyst emergence layer inside laid TiO2, activated carbon layer top be equipped with first relief port, first relief port with the washing gas pond be linked together.

As a further technical scheme of the utility model, dust collector including set up in the return air baffle of bottom, set up in the collection bag of return air baffle top with set up in the second adsorption sponge layer at top, second adsorption sponge layer top be equipped with the second relief port, the second relief port with the washing gas pond be linked together.

As a further technical scheme of the utility model, first liquid feeding pipe, first liquid dropping head end all be equipped with the accuse and flow the valve, the end is equipped with the promotion water pump.

As a further technical scheme of the utility model, second upper hose, second lower hose end also all be equipped with this accuse and flow the valve, the end also is equipped with this lifting water pump.

The utility model has the advantages that: through first alkali lye spray column and second alkali lye spray column separately handling organic waste gas and burning waste gas respectively, improve the treatment effeciency, the rethread UV photocatalyst active carbon device and dust collector are handled the back and are discharged harmless, pollution-free gas to the environment, realize industrial waste gas purification, accord with green production, do benefit to the further development of enterprise.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Wherein: an organic waste gas outlet 1, a combustion tail gas outlet 2, a first alkali liquor spray tower 3, a second alkali liquor spray tower 4, a first air passing cavity 7, a second air passing cavity 8, a first air outlet 9, a second air outlet 10, a first liquid collecting cavity 11, a second liquid collecting cavity 12, a first lower spray plate 13, a first upper spray plate 14, a second lower spray plate 15, a second upper spray plate 16, an air return partition plate 17, a first return pipe 18, a second return pipe 19, a first lower liquid pipe 20, a first upper liquid pipe 21, a flow control valve 22, a second upper liquid pipe 23, a second lower liquid pipe 24, a gas washing water tank 25, a UV photocatalyst activated carbon device 26, a photocatalyst generation layer 27, a first adsorption sponge layer 28, an activated carbon layer 29, a collection bag 30, a dust removal device 31, a second adsorption sponge layer 32, a second air outlet 34, a first air outlet 35, an alkali liquor storage tank 36 and a lifting water pump 37.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings and preferred embodiments.

Referring to fig. 1, the device is combined and shown in the following figure, the feed production and processing are taken as a row, the produced waste gas is introduced into the system for removing dust and degrading VOCs in the tail gas of the industrial furnace, the system comprises an organic waste gas outlet 1 and a combustion tail gas outlet 2, the organic waste gas outlet 1 is connected with a first alkali liquor spray tower 3, the combustion tail gas outlet 2 is connected with a second alkali liquor spray tower 4, an alkali liquor storage tank 36 and a gas washing tank 25 are arranged between the first alkali liquor spray tower 3 and the second alkali liquor spray tower 4, the first alkali liquor spray tower 3 is communicated with the alkali liquor storage tank 36 through a first return pipe 18, the second alkali liquor spray tower 4 is communicated with the alkali liquor storage tank 36 through a second return pipe 19, a first air outlet 9 is arranged at the top of the first alkali liquor spray tower 3, the first air outlet 9 is communicated with a UV photocatalyst active carbon device 26, the top of the second alkali liquor spray tower 4 is provided with a second air outlet 10, the second air outlet 10 is communicated with a dust removal device 31, a first spray device is arranged in the first alkali liquor spray tower 3, a second spray device is arranged in the second alkali liquor spray tower 4, the first alkali liquor spray tower 3 comprises a first liquor collection cavity 11 arranged at the bottom and a first air passing cavity 7 arranged at the middle part, the first spray device comprises a first upper spray plate 14 and a first lower spray plate 13 which are arranged in the first air passing cavity 7, the first upper spray plate 14 is communicated with a first upper liquor pipe 21, the first lower spray plate 13 is communicated with a first lower liquor pipe 20, the first upper liquor pipe 21 and the first lower liquor pipe 20 are communicated with an alkali liquor storage pool 36, the first liquor collection cavity 11 is communicated with the alkali liquor storage pool 36 through a first return pipe 18, the second alkali liquor spray tower 4 comprises a second liquor collecting cavity 12 arranged at the bottom and a second gas passing cavity 8 arranged at the middle part, the second spray device comprises a second upper spray plate 16 and a second lower spray plate 15 which are arranged in the second gas passing cavity 8, the second upper spray plate 16 is communicated with a second upper liquor pipe 23, the second lower spray plate 15 is communicated with a second lower liquor pipe 24, the second upper liquor pipe 23 and the second lower liquor pipe 24 are communicated with an alkali liquor storage pool 36, the second liquor collecting cavity 12 is communicated with the alkali liquor storage pool 36 through a second return pipe 19, organic waste gas is introduced from the organic waste gas outlet 1 and enters the first alkali liquor spray tower 3, combustion tail gas is introduced from the combustion tail gas outlet 2 and enters the second alkali liquor spray tower 4 and passes through the first lower spray plate 13, The first upper spray plate 14, the second lower spray plate 15 and the second upper spray plate 16 spray the entering gas, therefore, the waste gas can be fully absorbed in the spraying liquid, the spraying liquid flows back from the first liquid collecting cavity 11 and the second liquid collecting cavity 12 through the first return pipe 18 and the second return pipe 19 respectively and returns to the alkali liquor storage pool 36, wherein the alkali liquor storage tank 36 is filled with absorption liquid for absorbing waste gas in gas, the absorption liquid can be recycled, impurities in the alkali liquor storage tank 36 need to be cleaned regularly, the ultraviolet irradiation of titanium dioxide is realized by the UV photocatalyst activated carbon device 26, odor molecules are decomposed by generating free radicals, and the nano-grade anatase titanium dioxide (TiO2) is taken as a new photocatalytic semiconductor material, is regarded as a new technology which is mainly developed in the century in Japan, and is known as the most advanced new air purification technology in the world at present and is widely applied in China in recent years. When a photon of light having a wavelength of 253.7nm or less is irradiated onto the nano-sized titanium dioxide particles at room temperature, an electron in the valence band is excited by the photon of light, transits to the conduction band to form a free electron, and a positively charged hole is formed in the valence band, thus forming an electron-hole pair. By utilizing the oxidation of the generated holes and the reduction capability of free electrons, the titanium dioxide reacts with H2O and O2 contacted with the surface to generate free radicals with extremely strong oxidation force, and the free radicals can decompose almost all organic substances and change hydrogen (H) and carbon (C) contained in the organic substances into water and carbon dioxide; through dust collector 31 collect the fly ash in the burning tail gas, let in at last wash gas pond 25 dissolve harmful gas in aqueous, the gas of emission harmless, pollution-free to the environment realizes industrial waste gas purification, accords with green production, does benefit to enterprise further development.

Further, UV photocatalyst activated carbon device 26 include photocatalyst emergence layer 27, first adsorption sponge layer 28 and activated carbon layer 29 from bottom to top, photocatalyst emergence layer 27 inside laid TiO2, activated carbon layer 29 top be equipped with first relief port 35, first relief port 35 with gas washing pond 25 be linked together, gas after spraying gets into photocatalyst emergence layer 27 after-reaction, handles, gets into the steam in the first adsorption sponge layer 28 adsorption air after finishing (realize further purifying), and rethread activated carbon layer 29 realizes final purification treatment, reaches that purification efficiency is more high-efficient.

Further, dust collector 31 including set up in the return air baffle 17 of bottom, set up in the collection bag 30 of return air baffle 17 top with set up in the second adsorption sponge layer 32 at top, second adsorption sponge layer 32 top be equipped with second relief port 34, second relief port 34 with washing gas pond 25 be linked together, insufflate the gas after spraying in dust collector 31, through the back that blocks of return air baffle 17, form the backward flow wind again, insufflate the dust in the gas in collecting bag 30, realize the dust collection in the gas, pass through finally second adsorption sponge layer 32 the steam in the adsorbed air (realize further purification).

Further, the head ends of the first upper liquid pipe 21 and the first lower liquid pipe 20 are respectively provided with a flow control valve 22, the tail end of the first upper liquid pipe 21 and the tail end of the first lower liquid pipe 20 are respectively provided with a lifting water pump 37, the head ends of the second upper liquid pipe 23 and the second lower liquid pipe 24 are respectively provided with the flow control valve 22, the tail end of the second upper liquid pipe and the tail end of the second lower liquid pipe are also provided with the lifting water pump 37, the spraying amount is achieved through the flow control valve 22, and the current situation.

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 an industrial furnace tail gas dust removal VOCs degradation system, includes organic waste gas export (1) and burning tail gas export (2), its characterized in that, organic waste gas export (1) be connected with first alkali lye spray column (3), burning tail gas export (2) be connected with second alkali lye spray column (4), first alkali lye spray column (3) with second alkali lye spray column (4) between be equipped with alkali lye and deposit pond (36) and scrubbing water pond (25), first alkali lye spray column (3) through first back flow (18) with alkali lye deposit pond (36) be linked together, second alkali lye spray column (4) through second back flow (19) with alkali lye deposit pond (36) be linked together, first alkali lye spray column (3) top seted up first venthole (9), first venthole (9) be linked together with UV photocatalyst active carbon device (26), the top of the second alkali liquor spray tower (4) is provided with a second air outlet (10), the second air outlet (10) is communicated with a dust removal device (31), a first spray device is arranged inside the first alkali liquor spray tower (3), and a second spray device is arranged inside the second alkali liquor spray tower (4).

2. The system for removing dust and VOCs from industrial furnace tail gas according to claim 1, wherein the first alkali liquor spray tower (3) comprises a first liquid collecting cavity (11) arranged at the bottom and a first gas passing cavity (7) arranged at the middle, the first spray device comprises a first upper spray plate (14) and a first lower spray plate (13) which are arranged in the first gas passing cavity (7), the first upper spray plate (14) is communicated with a first upper liquid pipe (21), the first lower spray plate (13) is communicated with a first lower liquid pipe (20), the first upper liquid pipe (21) and the first lower liquid pipe (20) are communicated with the alkali liquor storage pool (36), and the first liquid collecting cavity (11) is communicated with the alkali liquor storage pool (36) through the first return pipe (18).

3. The system for removing dust and VOCs from tail gas of the industrial furnace according to claim 1, wherein the second alkali liquor spray tower (4) comprises a second liquid collecting cavity (12) arranged at the bottom and a second air passing cavity (8) arranged at the middle, the second spray device comprises a second upper spray plate (16) and a second lower spray plate (15) which are arranged in the second air passing cavity (8), the second upper spray plate (16) is communicated with a second upper liquid pipe (23), the second lower spray plate (15) is communicated with a second lower liquid pipe (24), the second upper liquid pipe (23) and the second lower liquid pipe (24) are communicated with the alkali liquor storage pool (36), and the second liquid collecting cavity (12) is communicated with the alkali liquor storage pool (36) through the second return pipe (19).

4. The system for degrading VOCs in the tail gas of the industrial furnace according to claim 1, wherein the UV photocatalyst activated carbon device (26) comprises a photocatalyst generation layer (27), a first adsorption sponge layer (28) and an activated carbon layer (29) from bottom to top, TiO2 is laid inside the photocatalyst generation layer (27), a first air release port (35) is arranged at the top of the activated carbon layer (29), and the first air release port (35) is communicated with the gas washing water tank (25).

5. The system for degrading industrial furnace tail gas dedusting VOCs according to claim 1, wherein the dedusting device (31) comprises a return air partition plate (17) arranged at the bottom, a collection bag (30) arranged above the return air partition plate (17) and a second adsorption sponge layer (32) arranged at the top, a second air release port (34) is arranged at the top of the second adsorption sponge layer (32), and the second air release port (34) is communicated with the washing gas pool (25).

6. The system for degrading industrial furnace tail gas dedusting VOCs according to claim 2, wherein the first upper liquid pipe (21) and the first lower liquid pipe (20) are provided with flow control valves (22) at the head ends and lifting water pumps (37) at the tail ends.

7. The system for removing dust and VOCs degrading in industrial furnace tail gas according to claim 3, wherein the flow control valve (22) is disposed at the head end of the second upper liquid pipe (23) and the lifting water pump (37) is disposed at the tail end of the second lower liquid pipe (24).