CN106669414A - Waste gas treatment equipment - Google Patents

Abstract

The invention discloses waste gas treatment equipment. The waste gas treatment equipment comprises a shell provided with an air inlet in one end and an air outlet in the other end, a photooxidation module and a photocatalytic module which are sequentially arranged in the shell along the direction from the air inlet to the air outlet and low-temperature plasma module arranged in the shell and at the position between the air inlet and the photooxidation module. By the arrangement that the low-temperature plasma module is added in the treatment equipment, substances hard to decompose can be decomposed, and treatment effect in improving waste gas can be achieved.

Description

A kind of waste gas treatment equipment

Technical field

The invention belongs to exhaust-gas treatment field, more particularly to a kind of waste gas treatment equipment.

Background technology

Atmospheric pollution is one of China's environmental problem most prominent at present, and industrial waste gas is the important next of atmosphere pollution Source.Big capacity industrial waste gas enter air, decline atmosphere quality, give people body health care belt and carry out serious harm, in industrial waste gas Most intractable is exactly organic exhaust gas, and environmental pollution is very serious, and the pollutant has that discharge capacity is big, pollute wide and difficulty The characteristics of to degrade.Organic exhaust gas end-of-pipe control technology absorbs comprising activated carbon, condenses recovery, membrance separation, high temperature incineration, catalysis Burning, biological oxidation, low temperature plasma destruction and photocatalysis oxidation technique etc..Above technology has its corresponding applicable model Enclose, with respective pluses and minuses, wherein photooxidation catalysis technique, i.e. photoion combination technique, with stable, maintenance cost Low, purification efficiency is high, non-secondary pollution etc..In view of industrial waste gas complicated component, single technique can not meet purification and require, light from Sub-portfolio technology aids in other process equipments, such as pretreatment dry filter, spray column, soda acid to wash in practical application extension process The facilities such as tower, aerosol separation are washed, the purpose to the process of organic exhaust gas deep purifying is reached, realizes that organic exhaust gas are reduced discharging.

Existing photoion combined exhaust gas processing equipment, main employing photooxidation and photocatalysis process combination, in, low concentration VOCs treatment, such as contains benzene,toluene,xylene, esters, alcohols, styrene VOCs treatment.But for having containing phenyl ring Machine composition removal efficiency is undesirable, meanwhile, existing photoion combined exhaust gas processing equipment some filter, ozone reduction module fixes It is embedded in equipment, there is maintenance, cleaning maintenance inconvenience.

The content of the invention

Present invention is primarily targeted at providing a kind of waste gas treatment equipment, dysoxidizable Organic substance can be carried out oxygen Change, and then improve the efficiency of exhaust-gas treatment, improve treatment effect.

To reach object above, the technical solution used in the present invention is：A kind of emission-control equipment, including one end is air inlet Mouthful, the other end for gas outlet housing and the photooxidation module that sets gradually toward the direction of gas outlet along air inlet in housing and Photocatalysis module, it is characterised in that also including the low temperature for being arranged in housing and being arranged between air inlet and photooxidation module Plasma module.

Preferably, the low-temperature plasma module includes plasma generator.

Preferably, the photooxidation module includes the high ozone equidistantly arranged in the plane of exhaust gas flow direction UV ultraviolet lamp tubes.

Preferably, the high ozone UV ultraviolet lamp tubes have at least two rows in exhaust gas flow direction.

Preferably, the photocatalysis module is included in gas flow direction the UV uviol lamps with least two rows, in institute State and be provided between row and row catalytic plate.

Preferably, it is provided with ozone cancellation module in housing and between the photocatalysis module and gas outlet.

Preferably, the ozone cancellation module is honeycomb ozone drainage screen, and on honeycomb ozone drainage screen reducing agent is placed MnO₂。

Preferably, it is provided with filtering module in housing and between the air inlet and low-temperature plasma module.

Preferably, the filtering module is made up of multiple screen packs, the plurality of screen pack be arranged in V-shape or W fonts.

Preferably, the processing meanss are designed using drawing and pulling type.

Compared with prior art, the invention has the advantages that：

1) processing meanss increased on the basis of existing technology low-temperature plasma module, to make to be difficult to what is decomposed Material Direct Resolution in waste gas is into innocuous substance or resolves into the labile harmful substance of appearance, then process mould behind Harmful substance is resolved into into innocuous substance in block；

2) processing meanss have multiple exhaust-gas treatment modules, it is ensured that waste gas can all be processed into water, titanium dioxide The innocuous substances such as carbon；

3) module of the processing meanss is designed using drawing and pulling type, for the module energy for needing to repair or carry out other operations Enough it is easily removed.

Description of the drawings

Fig. 1 is structure chart according to a preferred embodiment of the present invention.

Specific embodiment

Hereinafter describe for disclosing the present invention so that those skilled in the art can realize the present invention.It is excellent in below describing Embodiment is selected to be only used as citing, it may occur to persons skilled in the art that other obvious modifications.

A kind of emission-control equipment as shown in Figure 1, including one end is the housing 6 that the air inlet 1, other end is gas outlet 5 With the low-temperature plasma module 3, photooxidation module 7 set gradually toward the direction of gas outlet 5 along air inlet 1 in the housing 6 with And photocatalysis module 8.

The low-temperature plasma module 3 to being difficult to degrade and high-concentration waste gas purification, with assisted oxidation Effect.The low temperature plasma oxidation module 3 includes plasma generator to produce energetic ion, specifically, described etc. The model AIO-1 plasma generator that ion generator is produced using Shanghai adduction environmental science and technology company limited.

The photooxidation module 7 is to the innocuous substances such as off-gas oxidizing production water, carbon dioxide, specifically, the light Oxidation module 7 includes high ozone UV ultraviolet lamp tubes, and dominant wavelength is 185nm, and the high ozone UV ultraviolet lamp tubes are perpendicular to gas Equidistantly arrange in the plane in the direction of flowing, while in order to reach more preferable sterilization effect, can be in gas flowing Direction arranges multiple row high ozone ultraviolet lamp tube.Specifically, the high ozone UV ultraviolet lamp tubes can adopt the farsighted science and technology of Foshan City monarch The high ozone UV ultraviolet lamp tubes of the model UVC U150W/VH of company limited's production.

Photocatalysis module 8 makes waste gas ultimately produce carbon dioxide, water to carry out photocatalytic redox reaction to waste gas And other innocuous substances.The photocatalysis module 8 adopts UV ultraviolet lamp tubes, and dominant wavelength is 254nm, the UV ultraviolet lamp tubes edge Gas flow direction and be provided with multiple rows of, be provided with catalytic plate between row and row, the catalytic plate is in cellular or adopt honeybee Nest material is made and is passed through with supplied gas, and TiO is placed with catalytic plate₂Catalyst.Specifically, the UV ultraviolet lamp tubes are using wide The UV ultraviolet lamp tubes of model XP-UV-lamp of Dong Xingpu energy-conserving photoelectrics company limited production.

In housing 6 and between the photocatalysis module 8 and gas outlet 5 ozone cancellation module 9 is provided with to eliminate The ozone that photooxidation module 7 is produced, the ozone cancellation module 9 can be honeycomb ozone drainage screen, in honeycomb ozone drainage screen Upper placement reducing agent MnO₂。

Filtering module 2, the mistake are provided with housing 6 and between the air inlet 1 and low-temperature plasma module 3 Particulate matter during module 2 is filtered to filter waste gas, while carrying out water conservancy diversion to waste gas.Further, the filtering module 2 is by multiple mistakes Sieve plate is constituted.In order to increase filter area, screen pack can be arranged in V-shape or W fonts.

Access hole 4 is additionally provided with housing 6 to convenient maintenance.Meanwhile, it is above-mentioned all in order to further facilitate maintenance Module designed using drawing and pulling type, can take out in the housing 6 easily and be keeped in repair or other operations.

The low-temperature plasma module 3, photooxidation module 7, photocatalysis module 8 connect respectively PLC.

Ultimate principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry The simply present invention of the personnel it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and description Principle, without departing from the spirit and scope of the present invention the present invention also have various changes and modifications, these change and Improvement is both fallen within the range of claimed invention.The protection domain of application claims by appending claims and its Equivalent is defined.

Claims (10)

1. a kind of emission-control equipment, including one end be air inlet, the other end for gas outlet housing and in housing along air inlet Mouthful toward gas outlet the photooxidation module that sets gradually of direction and photocatalysis module, it is characterised in that also including being arranged on housing Low-temperature plasma module that is interior and being arranged between air inlet and photooxidation module.

2. a kind of emission-control equipment according to claim 1, it is characterised in that the low-temperature plasma module includes etc. Ion generator.

3. a kind of emission-control equipment according to claim 1, it is characterised in that the photooxidation module include perpendicular to The high ozone UV ultraviolet lamp tubes equidistantly arranged in the plane of exhaust gas flow direction.

4. a kind of emission-control equipment according to claim 3, it is characterised in that the high ozone UV ultraviolet lamp tubes are useless There are at least two rows on flow of air direction.

5. a kind of emission-control equipment according to any one of claim 1-4, it is characterised in that the photocatalysis module bag The UV uviol lamps with least two rows in gas flow direction are included, described catalytic plate is provided between row and row.

6. a kind of emission-control equipment according to any one of claim 1-4, it is characterised in that in housing and described Ozone cancellation module is provided between photocatalysis module and gas outlet.

7. a kind of emission-control equipment according to any one of claim 6, it is characterised in that the ozone cancellation module is Honeycomb ozone drainage screen, places reducing agent MnO2 on honeycomb ozone drainage screen.

8. a kind of emission-control equipment according to any one of claim 1-4, it is characterised in that in housing and described Filtering module is provided between air inlet and low-temperature plasma module.

9. a kind of emission-control equipment according to any one of claim 8, it is characterised in that the filtering module is by multiple Screen pack is constituted, and the plurality of screen pack is arranged in V-shape or W fonts.

10. a kind of emission-control equipment according to any one of claim 1-4, it is characterised in that the processing meanss are adopted Drawing and pulling type is designed.