CN212467602U - Malodorous organic waste gas treatment system - Google Patents

Abstract

The utility model provides a malodorous organic waste gas treatment system, which comprises a gas-liquid separation device and an adsorption device, wherein the gas-liquid separation device comprises a separation tank and a plurality of freezing water pipes which run through the separation tank from top to bottom, the bottom or the lower part of the side wall of the separation tank is provided with an air inlet, the top or the upper part of the side wall of the separation tank is provided with an air outlet, and the bottom of the separation tank is provided with a waste liquid recovery valve; one end of the adsorption device is provided with an air inlet, the other end of the adsorption device is provided with an air outlet, and spherical, rod-shaped or irregular adsorption material particles are filled in the adsorption device; the gas outlet of the separating tank is communicated with the gas inlet of the adsorption device. The utility model discloses utilize the low physical property of volatile stench organic compound melting point, turn into liquid and retrieve it in the knockout drum, then through adsorption equipment, further handle remaining harmful components through ultraviolet catalytic unit or biological treatment pond when necessary to thoroughly eliminate the harm of stench organic waste gas to the environment.

Description

Malodorous organic waste gas treatment system

Technical Field

The utility model belongs to the technical field of the environmental protection, concretely relates to stench organic waste gas treatment system.

Background

In the production process of industrial departments such as petrochemical industry, organic synthesis industry and the like, and in the centralized treatment or discharge process of household garbage or sewage, a large amount of volatile malodorous organic compounds (malodorous organic compounds) are generated. Gases containing volatile malodorous organic compounds are commonly referred to as malodorous organic waste gases. The volatile malodorous organic compounds are various and comprise nitrogen-containing compounds, hydrocarbon compounds, oxygen-containing organic compounds and the like, and the boiling point of the volatile malodorous organic compounds is between 50 and 260 ℃ under normal pressure, and the melting point of the volatile malodorous organic compounds is mostly lower than 20 ℃. Volatile malodorous organic compounds are readily soluble in water and, if left to be discharged into the atmosphere, can not only pollute the atmosphere, but also pollute the water body, causing serious environmental disasters.

At present, there are conventionally used methods for treating volatile odorous organic compounds such as a combustion method, an activated carbon adsorption method, a biological decomposition method, a chemical spray method, a plasma method, a membrane separation method, an ultraviolet pyrolysis method and the like. In conjunction with these methods of treating volatile malodorous organic compounds, various apparatuses for treating volatile malodorous organic compounds have been developed, for example, the inventions or utility models having application numbers 201210299515.7, 201721397614.3, 201720932446.7, respectively, disclose various structures of apparatuses for treating volatile malodorous organic compounds.

The existing equipment plays a positive role in the aspect of treating volatile malodorous organic compounds, but has some defects, mainly comprising the following steps: or the structure is too complex, the investment is large, the maintenance cost is high, and the popularization and the application in medium and small enterprises are difficult, or the effect of waste gas treatment is not ideal although the structure is simple, the investment is small, and the maintenance cost is low.

Disclosure of Invention

The utility model aims at providing a structure is comparatively simple, the investment is less, the maintenance cost is lower, and can effective processing stink organic waste gas's equipment to overcome prior art's defect. The purpose is realized by the following technical scheme:

a malodorous organic waste gas treatment system comprises a gas-liquid separation device and an adsorption device, wherein the gas-liquid separation device comprises a separation tank and a plurality of freezing water pipes which penetrate through the separation tank from top to bottom, the bottom or the lower part of the side wall of the separation tank is provided with a gas inlet, the top or the upper part of the side wall of the separation tank is provided with a gas outlet, and the bottom of the separation tank is provided with a waste liquid recovery valve; one end of the adsorption device is provided with an air inlet, the other end of the adsorption device is provided with an air outlet, and spherical, rod-shaped or irregular adsorption material particles are filled in the adsorption device; the gas outlet of the separating tank is communicated with the gas inlet of the adsorption device.

On the basis of the technical scheme, the utility model discloses can attach following technical means to solve the purification problem of stench organic waste gas more effectively or more pertinence:

an ultraviolet light catalytic device is arranged, and the gas outlet of the adsorption device is communicated with the gas inlet of the ultraviolet light catalytic device through a pipeline.

Furthermore, a biological treatment pool is arranged, non vascular bundle plants or low-grade vascular bundle plants grow in the water body in the biological treatment pool, and the air outlet of the adsorption device or the air outlet of the ultraviolet light catalytic device is communicated with the water body in the biological treatment pool through a pipeline.

The utility model discloses following beneficial effect has:

by utilizing the physical property that the melting point of most volatile malodorous organic compounds is mostly lower than 20 ℃, most harmful components in the malodorous organic waste gas are converted into liquid from gas state and recovered in a separation tank, and then the harmful components remained in the waste gas are further treated by an ultraviolet light catalytic device or/and a biological treatment pool through an adsorption device if necessary, so that the harm of the malodorous organic waste gas to the environment is thoroughly eliminated, and the device has the advantages of simple structure, less investment and lower maintenance cost.

Drawings

Fig. 1 is a schematic longitudinal sectional view of an embodiment of the present invention;

fig. 2 is a schematic view of a horizontal sectional structure of the gas-liquid separation device in fig. 1.

Detailed Description

The technical scheme of the utility model is described in detail in the following with the accompanying drawings.

As shown in fig. 1 and fig. 2, a malodorous organic waste gas treatment system comprises a gas-liquid separation device 1 and an adsorption device 2, wherein the gas-liquid separation device 1 comprises a separation tank 101 and a plurality of freezing water pipes 102 which are arranged in a longitudinal and transverse manner and penetrate through the separation tank 101 from top to bottom, a gas inlet 1011 is arranged at the lower part of the side wall of the separation tank 101 (the gas inlet 1011 can also be arranged at the bottom of the separation tank 101), a gas outlet 1012 is arranged at the upper part of the side wall of the separation tank 101 (the gas outlet 1012 can also be arranged at the top of the separation tank 101), and a waste liquid recovery valve 1013 is arranged; one end of the adsorption device 2 is provided with an air inlet 201, the other end of the adsorption device 2 is provided with an air outlet 202, and the adsorption device 2 is filled with spherical, rod-shaped or irregular adsorption material particles; the gas outlet 1012 of the separation tank 101 communicates with the gas inlet 201 of the adsorption device 2.

The top of the adsorption apparatus 2 is provided with a sealable cover (not shown), and the adsorption apparatus 2 can be filled with the adsorption material or taken out from the adsorption apparatus 2 by opening the cover (for the convenience of replacing the adsorption material, it is preferable that the adsorption material is contained in a cloth bag having a length and width of 20 to 30 cm). The adsorbent filled in the adsorption apparatus 2 may be a common adsorbent such as activated carbon, zeolite, diatomaceous earth, or the like. The utility model discloses choose for use the adsorbing material granule of globular, bar-like or irregular form (preferred particle diameter is 4 to 5 millimeters adsorbing material granule) to fill in adsorption equipment 2, rather than choose for use powdered or massive adsorbing material to fill in adsorption equipment 2, be in order to utilize the gap between the adsorbing material granule, ensure on the one hand that the harmful component in the stench organic waste gas can be adsorbed by adsorbing material, on the other hand, can ensure again that the harmless component in the organic waste gas can discharge away through adsorption equipment 2 smoothly.

In order to facilitate the installation of the separation tank 101 in a workplace, four support columns fixedly connected to the separation tank 101 may be symmetrically provided at the bottom of the separation tank 101, or a support frame adapted to the separation tank 101 may be separately provided at the workplace.

It should be noted that the specific number of the freezing water pipes 102 can be determined according to actual needs, for example, 5 rows of freezing water pipes, 10 rows of freezing water pipes, or even more freezing water pipes can be respectively arranged according to different volumes of the separation tank. In addition, the arrangement of the plurality of freezing water pipes 102 is not limited to the vertical and horizontal arrangement, and for example, in the case where the horizontal section of the separation tank 101 is designed to be circular, the plurality of freezing water pipes 102 are preferably arranged in a plurality of circular rings surrounding each other around the center of a circle.

It should be noted that, the harmful component in the malodorous organic waste gas is various, and under the condition that the harmful component is very complicated, the technical scheme is adopted, the organic waste gas after being treated can not necessarily reach the emission standard, therefore, the utility model discloses can further attach following technical means:

firstly, an ultraviolet light catalytic device is arranged, and the gas outlet 202 of the adsorption device 2 is communicated with the gas inlet of the ultraviolet light catalytic device through a pipeline, so that the ultraviolet light catalytic device is used for decomposing and treating the organic waste gas after gas-liquid separation and adsorption treatment. The uv light catalytic device may be selected from those known in the art, such as the one disclosed in the utility model No. 201220072931.9.

And secondly, a biological treatment pool is arranged, non-vascular plants such as macroalgae and bryophytes or low-level vascular plants such as pteridophytes and pteridophytes homologous plants grow in the biological treatment pool, the gas outlet 202 of the adsorption device 2 or the gas outlet of the ultraviolet light catalytic device is communicated with the water body in the biological treatment pool through a pipeline, and harmful components remained in the treated waste gas are further absorbed and decomposed by the non-vascular plants such as macroalgae and bryophytes or low-level vascular plants such as pteridophytes and pteridophytes homologous plants in the biological treatment pool.

The structural features of the present invention have been described in detail above with reference to the accompanying drawings. The working principle and the method of use are further described below.

The utility model discloses an operating principle utilizes the melting point of most volatile organic compounds in the stench organic waste gas to be less than the physical property of 20 degrees centigrade, turns into liquid and retrieve most volatile stench organic compounds that are gaseous state originally through gas-liquid separation device 1. It should be noted that the adsorbing material particles filled in the adsorbing device 2 have a function of blocking the flow of gas (but cannot completely block the flow of gas), so that, in the operation of the present invention, the gas pressure inside the separating tank 101 is higher than the external gas pressure, thereby helping the volatile malodorous organic compounds to be converted into liquid state. However, the gas-liquid separation device can not convert all volatile odorous organic compounds into liquid, and for the volatile odorous organic compounds remained in the waste gas, the utility model discloses an adsorption equipment adsorbs, and when necessary-mainly refer to the situation that the harmful component in the odorous organic waste gas is very complicated, further adopts ultraviolet light or/and biological pond to decompose or absorb the organic waste gas in the odorous organic waste gas.

The utility model discloses the during operation needs the cooperation of aspiration pump, suction pump, refrigeration plant. Before malodorous organic waste gas is treated, a refrigeration device is started to prepare chilled water with the temperature of 0-2 ℃, a water pump is used for pumping the chilled water into a plurality of chilled water pipes 102 penetrating through a separation tank 101, so that the chilled water circulates in the chilled water pipes 102 (the pipeline for communicating the chilled water in the chilled water pipes 102 with a cold source and returning the chilled water to the cold source is omitted in fig. 1 and 2), and the plurality of chilled water pipes 102 are rapidly cooled under the action of the chilled water. Then, starting an air pump, pumping the malodorous organic waste gas (the temperature of which is usually higher than 40 ℃) generated in the production process or the centralized treatment process of the household garbage and the sewage into the separating tank 101, wherein the malodorous organic waste gas flows from bottom to top in the separating tank 101, and in the process, the malodorous organic waste gas is in contact with the plurality of freezing water pipes 102, most harmful components in the malodorous organic waste gas are attached to the outer pipe walls of the plurality of freezing water pipes 102 to be converted into liquid due to the heat exchange effect, flow downwards along the outer pipe walls of the plurality of freezing water pipes 102, and are collected at the bottom of the separating tank 101.

The gaseous harmful components which are not converted into liquid enter the adsorption device 2 along with the odorous organic waste gas from the gas outlet 1012 of the separation tank 101 and the gas inlet 201 of the adsorption device 2, and flow toward the gas outlet 202 of the adsorption device 2 along the gaps between the adsorbent particles, and in the process, most of the gaseous harmful components remaining in the odorous organic waste gas are adsorbed by the adsorbent. In the case where the harmful components in the malodorous organic waste gas are particularly complicated, the treated waste gas cannot meet the emission standard only by the two steps of gas-liquid separation and adsorption, and in this case, the harmful components remaining in the waste gas need to be further treated by using an ultraviolet light catalytic device or/and a biological treatment tank.

Claims (3)

1. The utility model provides a stench organic waste gas treatment system, includes adsorption equipment, adsorption equipment's one end is equipped with the air inlet, and adsorption equipment's the other end is equipped with gas outlet, its characterized in that: the device also comprises a gas-liquid separation device, wherein the gas-liquid separation device comprises a separation tank and a plurality of freezing water pipes penetrating through the separation tank from top to bottom, a gas inlet is formed in the bottom or the lower part of the side wall of the separation tank, a gas outlet is formed in the top or the upper part of the side wall of the separation tank, and a waste liquid recovery valve is arranged at the bottom of the separation tank; the adsorption device is filled with spherical, rod-shaped or irregular adsorption material particles; the gas outlet of the separating tank is communicated with the gas inlet of the adsorption device.

2. The malodorous organic waste gas treatment system as claimed in claim 1, wherein: the ultraviolet light catalytic device is characterized by further comprising an ultraviolet light catalytic device, and the gas outlet of the adsorption device is communicated with the gas inlet of the ultraviolet light catalytic device through a pipeline.

3. The malodorous organic waste gas treatment system as claimed in claim 1, wherein: the biological treatment device comprises a biological treatment pool, wherein non-vascular bundle plants or low-grade vascular bundle plants grow in a water body in the biological treatment pool, and an air outlet of the adsorption device is communicated with the water body in the biological treatment pool through a pipeline.

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