CN211069617U - A waste gas treatment equipment - Google Patents

Abstract

The utility model relates to a waste gas treatment field particularly, relates to a waste gas treatment equipment. The device comprises a water washing tower, an absorption tower and a photocatalytic device which are connected in sequence; the water scrubber is configured to absorb water soluble contaminants in the exhaust gas; the absorption tower is configured to remove sulfides and nitrogen oxides in the exhaust gas by spraying an alkaline solution; the photocatalytic device is configured to remove organic exhaust gas from exhaust gas using ultraviolet rays and a photocatalyst. The utility model provides a pair of exhaust-gas treatment equipment, it provides the processing method of high integration and low energy consumption to the waste gas that contains multiple pollutant, and it possesses good purifying effect to various pollutants in the waste gas, possesses stronger environmental protection meaning.

Description

A waste gas treatment equipment

technical field

The utility model relates to the field of waste gas treatment, in particular to a waste gas treatment device.

Background technique

Exhaust gas purification mainly refers to the treatment of industrial waste gas such as dust particles, smoke and dust, odorous gases, and toxic and harmful gases generated in industrial places. Common waste gas purification includes factory dust and waste gas purification, workshop dust and waste gas purification, organic waste gas purification, waste gas odor purification, acid-base waste gas purification, chemical waste gas purification, etc.

Existing waste gas treatment equipment is not very targeted, and ultraviolet light, a low-energy and efficient disinfection method, is less used in the case of large flux.

Utility model content

The purpose of the present invention is to provide a waste gas treatment device, which provides a treatment method with high integration and low energy consumption for waste gas containing various pollutants.

The embodiment of the present utility model is realized in this way:

A waste gas treatment equipment, which includes a water washing tower, an absorption tower and a photocatalytic equipment connected in sequence; the waste gas treatment equipment also includes a waste water collection device and a blowing system; the water washing tower and the absorption tower are collected with the waste water. device connection; a mist eliminator is arranged between the absorption tower and the photocatalytic equipment; the blowing system is connected with the photocatalytic equipment;

The water washing tower is configured to absorb water-soluble pollutants in the exhaust gas; the absorption tower is configured to remove sulfide and nitrogen oxides in the exhaust gas by spraying an alkaline solution; the photocatalytic device is configured to utilize ultraviolet rays and The photocatalyst removes organic exhaust gas from the exhaust gas.

In one embodiment of the present utility model:

The photocatalytic device includes a base body; the base body is provided with an opposite air inlet end and an air outlet end; the air inlet end is respectively connected with the end of the mist eliminator away from the absorption tower and the blowing system; inside the base body Including a filter device, a reaction channel and an ultraviolet generator; the filter device is arranged in the base near the air inlet; the ultraviolet generator is arranged along the length direction of the base body; the reaction channel is surrounded by the The ultraviolet generator, the photocatalyst is arranged on the inner wall of the reaction channel.

In one embodiment of the present utility model:

The photocatalyst includes titanium dioxide.

In one embodiment of the present utility model:

The ultraviolet generator is configured to generate ultraviolet wavelengths of 185nm and 254nm and ensure that the intensity of ultraviolet rays corresponding to each square meter of the exhaust gas is not less than 1W.

The technical scheme of the present utility model has at least the following beneficial effects:

The waste gas treatment equipment provided by the utility model provides a high-integration and low-energy-consumption treatment method for waste gas containing various pollutants, and has a good purification effect on various pollutants in the waste gas, and has strong environmental protection significance. .

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings that need to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of the waste gas treatment equipment in Embodiment 1 of the present invention.

In the figure: 10-water washing tower; 20-absorption tower; 30-photocatalytic equipment; 21-demister; 31-matrix; 32-ultraviolet generator; 33-filtering device; 34-reaction channel; 40-blasting system .

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described above are a part of the embodiments of the present invention, but not all of the embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inside", "outside", "upper", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the practical The orientation or positional relationship that is usually placed when the new product is used is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it cannot be construed as a limitation of the present invention.

Example 1

Referring to FIG. 1 , there is shown an exhaust gas treatment device provided in this embodiment, which provides a highly integrated and low-energy-consumption treatment method for exhaust gas containing various pollutants.

Specifically, the waste gas treatment equipment includes a water washing tower 10, an absorption tower 20 and a photocatalytic equipment 30 connected in sequence; the waste gas treatment equipment also includes a waste water collection device and a blowing system 40; the water washing tower 10 and the absorption tower 20 are connected with the waste water collection device; A mist eliminator 21 is arranged between the absorption tower 20 and the photocatalytic equipment 30 ; the blowing system 40 is connected with the photocatalytic equipment 30 .

The above-mentioned water washing tower 10 is configured to absorb water-soluble pollutants and part of the dust in the waste gas; the absorption tower 20 is configured to remove sulfides and nitrogen oxides in the waste gas by spraying an alkaline solution, and the water washing tower 10 and the absorption tower 20 are in the waste gas. After treatment, a certain amount of sewage will be generated, which will be collected and centrally treated by the above-mentioned waste water collection device. The above-described photocatalytic device 30 is configured to remove organic waste gas from exhaust gas using ultraviolet rays and a photocatalyst. By irradiating the photocatalyst with ultraviolet light, the photocatalyst absorbs the light energy to generate electron jumping and hole jumping, and after further combination, electron-hole pairs are generated, and the water and oxygen in the air are passed into the exhaust gas and the blower system 40. The reaction generates highly oxidizing hydroxyl radicals and superoxide ion radicals, and then converts various organic waste gases such as aldehydes, benzenes, ammonia, methanol, hydrocarbons, carbon monoxide and other VOC organics in the photocatalytic oxidation process. It is reduced to carbon dioxide, water and other non-toxic and harmless substances under the action.

Specifically, in this embodiment, the photocatalytic device 30 includes a base body 31; the base body 31 has an opposite air inlet end and an air outlet end; the air inlet end is respectively connected to the end of the mist eliminator 21 away from the absorption tower 20 and the blowing system 40; The base body 31 includes a filter device 33, a reaction channel 34 and an ultraviolet generator 32; the filter device 33 is arranged in the base body 31 near the intake end; the ultraviolet generator 32 is arranged along the length direction of the base body 31; 32, the photocatalyst is arranged on the inner wall of the reaction channel 34.

Further, in this embodiment, the photocatalyst includes titanium dioxide. Under the catalysis of nano-scale titanium dioxide powder, the purified exhaust gas molecules are activated and degraded.

In order to achieve a sufficient purification effect, optionally, the ultraviolet generator 32 is configured to generate ultraviolet wavelengths of 185 nm and 254 nm and ensure that the corresponding ultraviolet intensity per square meter of exhaust gas is not less than 1W. The use of high-energy ultraviolet light can also crack the molecular bonds of bacteria in the exhaust gas and destroy the nucleic acid of bacteria, and the combination of superoxide ion free radicals and oxygen molecules can further produce ozone, and the nucleic acid of the destroyed bacteria can be further oxidized by ozone to achieve further The purpose of purifying and killing bacteria.

The exhaust gas treatment equipment provided in this embodiment provides a highly integrated and low-energy-consumption treatment method for exhaust gas containing various pollutants, which has a good purification effect on various pollutants in the exhaust gas, and has strong environmental protection significance .

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (4)

1. An exhaust gas treatment device characterized in that: the waste gas treatment equipment comprises a water washing tower, an absorption tower and photocatalytic equipment which are connected in sequence; the waste gas treatment equipment also comprises a waste water collecting device and an air blowing system; the water washing tower and the absorption tower are both connected with the wastewater collecting device; a demister is arranged between the absorption tower and the photocatalytic equipment; the air blowing system is connected with the photocatalytic equipment;

the water wash column is configured to absorb water soluble contaminants in the exhaust gas; the absorption tower is configured to remove sulfides and nitrogen oxides in the exhaust gas by spraying an alkaline solution; the photocatalytic apparatus is configured to remove organic exhaust gas from the exhaust gas using ultraviolet rays and a photocatalyst.

2. An exhaust gas treatment device according to claim 1, wherein: the photocatalytic device includes a substrate; the substrate is provided with an air inlet end and an air outlet end which are opposite; the air inlet end is respectively connected with one end of the demister, which is far away from the absorption tower, and the air blowing system; the substrate comprises a filtering device, a reaction channel and an ultraviolet generator; the filtering device is arranged in the base body and close to the air inlet end; the ultraviolet generator is arranged along the length direction of the substrate; the reaction channel is arranged around the ultraviolet generator, and the photocatalyst is arranged on the inner wall of the reaction channel.

3. An exhaust gas treatment device according to claim 2, wherein: the photocatalyst includes titanium dioxide.

4. An exhaust gas treatment device according to claim 2, wherein: the ultraviolet generator is configured to generate ultraviolet wavelengths of 185nm and 254nm and to ensure that the ultraviolet intensity is not less than 1W per square meter of the exhaust gas.

Images