CN211189570U

CN211189570U - Biological filter for organic waste gas treatment of electrophoresis spraying working line

Info

Publication number: CN211189570U
Application number: CN201921284965.2U
Authority: CN
Inventors: 仇云成
Original assignee: Jiangsu Yayi Intelligence Equipment Co ltd
Current assignee: Jiangsu Yayi Intelligence Equipment Co ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-08-07
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses a biological filter for organic waste gas treatment in an electrophoresis spraying line, which comprises a pretreatment tank, a primary filter tank, a transition tank and a secondary filter tank which are communicated in sequence; one end of the pretreatment tank is communicated with an air inlet pipe, and a coarse filter layer, a fine filter layer and a grid baffle are sequentially arranged at the bottom inside the primary treatment tank from bottom to top; the bottom of the secondary treatment tank is sequentially provided with a coarse filter layer, a fine filter layer, a planting soil layer and an aquatic vegetation layer from bottom to top; microorganisms are arranged in the fine filtering layer; the top parts of the pretreatment tank, the primary filtering tank and the transition tank are provided with sealing tops; the lower parts of the walls of the pretreatment tank and the primary filtering tank are provided with pre-passing openings; the upper parts of the tank walls of the primary filtering tank and the transition tank are provided with primary through ports; and the lower parts of the walls of the transition tank and the secondary filtering tank are provided with secondary through ports. The utility model discloses the cost is low, maintain simply, and the treatment cost is low, and the waste gas after the processing directly discharges, does not have secondary pollution.

Description

Biological filter for organic waste gas treatment of electrophoresis spraying working line

Technical Field

The invention relates to the technical field of waste gas treatment, in particular to a biofilter for organic waste gas treatment in an electrophoresis spraying working line.

Background

The electrophoresis spraying line is a common spraying line for automobile spraying and is used for spraying and assembling automobile parts and automobile shells.

The existing spraying line includes: the device comprises a full-automatic assembly line (conveying system), a fixed automatic spraying chamber (spraying system), a drying channel type drying chamber drying system, a UV curing chamber (curing system) and a dust removal system. And the workpiece to be sprayed enters the spraying system through a full-automatic assembly line, is sprayed by the fixed automatic spray gun, then enters the drying system for drying, then enters the UV curing chamber for curing, and the spraying and the mounting are finished. In the whole working line, the spraying chamber, the curing chamber and the drying chamber are connected with a dust removal system to effectively remove dust.

After the waste gas is treated by the dust removal system, a large amount of organic waste gas still exists. The organic waste gas needs to be further treated and then can be discharged.

In the prior art, waste gas is directly discharged after being treated by a dust remover, the environment is seriously polluted, a dust removing system cannot effectively treat organic waste gas, secondary pollution can be caused by treatment of an incinerator in the prior art, and the cost is high by adsorption treatment (such as activated carbon adsorption) in the prior art.

Therefore, an apparatus for effectively treating organic waste gas in an electrophoretic spraying line is urgently needed, and meanwhile, the apparatus is low in cost, energy-saving and environment-friendly.

Disclosure of Invention

In order to solve the problems, the invention discloses a biofilter for treating organic waste gas in an electrophoresis spraying working line, which has the advantages of low manufacturing cost, simple maintenance and low treatment cost, and the treated waste gas is directly discharged without secondary pollution.

In order to achieve the above purpose, the invention provides the following technical scheme:

a biological filter for organic waste gas treatment of an electrophoresis spraying working line comprises a pretreatment tank, a primary filter tank, a transition tank and a secondary filter tank which are sequentially communicated; one end of the pretreatment tank is communicated with an air inlet pipe, and a coarse filter layer, a fine filter layer and a grid baffle are sequentially arranged at the bottom inside the primary treatment tank from bottom to top; the bottom of the secondary treatment tank is sequentially provided with a coarse filter layer, a fine filter layer, a planting soil layer and an aquatic vegetation layer from bottom to top; microorganisms are arranged in the fine filtering layer; the top parts of the pretreatment tank, the primary filtering tank and the transition tank are provided with sealing tops; the lower parts of the walls of the pretreatment tank and the primary filtering tank are provided with pre-passing openings; the upper parts of the tank walls of the primary filtering tank and the transition tank are provided with primary through ports; and the lower parts of the walls of the transition tank and the secondary filtering tank are provided with secondary through ports.

Waste gas enters a pretreatment tank through a gas inlet pipe, and treatment water is arranged in the pretreatment tank; the waste gas is dissolved in the treated water, then enters a primary filter tank through a pre-filtering port, passes through a filter bed consisting of filter materials from bottom to top in the primary filter tank from the bottom of a filter layer, and is filtered by the filter bed to realize the adsorption and microbial treatment of harmful gas in the treated water. The whole treatment process of the waste gas comprises the following steps: the gas phase is transferred to the water phase, and then mixed with the microorganism for treatment, and is decomposed by the metabolism of the microorganism fixed on the filter material. Then the treated water enters the transition tank, enters the current filter tank through the transition tank, and is filtered by the filter bed and decomposed by microorganisms. The treated wastewater reaches the discharge standard, and meanwhile, aquatic plants are planted in the secondary filter layer to realize biological treatment.

Furthermore, a filter screen grid plate is arranged in the pre-passing port, the primary passing port and the secondary passing port. The mesh filtering plate has the effects that large-particle impurities are prevented from entering the filtering layer, and the filtering layer is prevented from being blocked; on the other hand, the water flow buffering device plays a role in buffering water flow.

Further, the coarse filter layer is one of vermiculite, volcanic rock, limestone and gravel.

Further, the coarse filter layer is one of activated carbon and coral sand.

Further, the pre-filtering tank is connected with a water pump. The water pump is used for supplementing water for the pre-filtering tank.

Furthermore, the height of the pre-passing openings at the lower parts of the walls of the pre-treatment tank and the primary filtering tank does not exceed the height of the coarse filtering layer in the primary filtering layer; the height of the secondary through openings at the lower parts of the walls of the transition tank and the secondary filtering tank is not more than that of the coarse filtering layer in the secondary filtering layer.

The invention has the following beneficial effects:

the biofilter in the prior art can also treat waste gas, but is mainly used for deodorization and deodorization of the waste gas. The biological filter is not only used for deodorization, but also can effectively treat organic components in the waste gas, achieves two purposes by one, is energy-saving and environment-friendly, and the waste gas filtered by the biological filter can be directly discharged because the waste gas does not contain sulfur and nitrogen. The waste gas is firstly dissolved in the treatment water in the pretreatment tank, large particles in the waste gas can be intercepted in the pretreatment tank, and the pretreatment tank is cleaned regularly; then the sewage is absorbed by a first-stage filter tank and decomposed by microorganisms, and then the sewage passes through a transition tank which is also used for further intercepting large-particle impurities and impurities remained after the microorganisms are treated, and the transition tank is cleaned regularly; then the wastewater enters a secondary treatment tank and undergoes secondary adsorption and decomposition treatment; then the harmful substances are further treated by the biological treatment of the roots of the aquatic plants. The invention has the advantages of reduced floor area, effective treatment of organic waste gas, and beautifying of aquatic vegetation. The invention has low cost and strong practicability, and is suitable for the waste gas treatment (less waste gas discharge and the treated waste gas) of small-sized factories.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the present invention.

Wherein: the device comprises a pretreatment tank 1, a primary filter tank 2, a transition tank 3, a secondary filter tank 4, an air inlet pipe 5, a coarse filter layer 6, a fine filter layer 7, a grid baffle 8, a planting soil layer 9, an aquatic vegetation layer 10, a sealing top 11, a pre-passing port 12, a primary passing port 13, a secondary passing port 14 and a water pump 15.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention.

Example 1

The biological filter for organic waste gas treatment of the electrophoresis spraying working line as shown in the figure 1-2 comprises a pretreatment tank 1, a primary filter tank 2, a transition tank 3 and a secondary filter tank 4 which are communicated in sequence. The waste gas is firstly dissolved in the treatment water in the pretreatment tank, large particles in the waste gas can be intercepted in the pretreatment tank, and the pretreatment tank is cleaned regularly; then the sewage is absorbed by a first-stage filter tank and decomposed by microorganisms, and then the sewage passes through a transition tank which is also used for further intercepting large-particle impurities and impurities remained after the microorganisms are treated, and the transition tank is cleaned regularly; then the wastewater enters a secondary treatment tank and undergoes secondary adsorption and decomposition treatment; then the harmful substances are further treated by the biological treatment of the roots of the aquatic plants.

One end of the pretreatment tank is communicated with an air inlet pipe 5, and a coarse filter layer 6, a fine filter layer 7 and a grid baffle plate 8 are sequentially arranged at the bottom inside the primary treatment tank from bottom to top; the bottom of the secondary treatment tank is provided with a coarse filter layer, a fine filter layer, a planting soil layer 9 and an aquatic vegetation layer 10 from bottom to top in sequence; microorganisms are arranged in the fine filter layer; the top parts of the pretreatment tank, the primary filtering tank and the transition tank are provided with sealing tops 11; the lower parts of the walls of the pretreatment tank and the primary filtering tank are provided with pre-passing openings 12; the upper parts of the tank walls of the primary filtering tank and the transition tank are provided with primary through holes 13; the lower parts of the walls of the transition tank and the secondary filtering tank are provided with secondary through holes 14.

The water pump is connected to the processing water, and the water pump supplements the processing water for the pretreatment pond, and pretreatment pond, transition pond all are equipped with overflow mouth and outlet conduit simultaneously, are equipped with the check valve on the outlet conduit, maintain convenient to use. Meanwhile, the sealing top is provided with the population, so that the filter layer of the filter tank can be conveniently replaced, and the maintenance and the inspection are convenient.

The pre-passing port, the primary passing port and the secondary passing port are internally provided with filter screen grid plates. The mesh filtering plate has the effects that large-particle impurities are prevented from entering the filtering layer, and the filtering layer is prevented from being blocked; on the other hand, the water flow buffering device plays a role in buffering water flow.

The coarse filter layer is one of vermiculite, volcanic rock, limestone and gravel.

The coarse filter layer is one of active carbon and coral sand.

The prefiltration pool is connected with a water pump 15. The water pump is used for supplementing water for the pre-filtering tank.

The pre-passing openings at the lower parts of the walls of the pre-treatment tank and the primary filtering tank are not higher than the coarse filtering layer in the primary filtering layer; the height of the secondary through openings at the lower parts of the walls of the transition tank and the secondary filter tank is not more than that of the coarse filter layer in the secondary filter layer. The height of the through hole is lower than that of the coarse filtering layer, so that the treated water passes through the coarse filtering layer upon layer, the impact of the treated water on the fine filtering layer (and the planting soil layer) is avoided, and the filtering effect and the microbial decomposition effect are kept.

The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims

1. The utility model provides an electrophoresis spraying worker line biological filter for organic waste gas treatment which characterized in that: comprises a pretreatment tank, a primary filtering tank, a transition tank and a secondary filtering tank which are communicated in sequence; one end of the pretreatment tank is communicated with an air inlet pipe, and a coarse filter layer, a fine filter layer and a mesh baffle are sequentially arranged at the bottom inside the primary filter tank from bottom to top; the bottom of the secondary filter tank is sequentially provided with a coarse filter layer, a fine filter layer, a planting soil layer and an aquatic vegetation layer from bottom to top; microorganisms are arranged in the fine filtering layer; the top parts of the pretreatment tank, the primary filtering tank and the transition tank are provided with sealing tops; the lower parts of the walls of the pretreatment tank and the primary filtering tank are provided with pre-passing openings; the upper parts of the tank walls of the primary filtering tank and the transition tank are provided with primary through ports; and the lower parts of the walls of the transition tank and the secondary filtering tank are provided with secondary through ports.

2. The biofilter for treating organic waste gas in an electrophoretic coating line according to claim 1, wherein: and the pre-passing port, the primary passing port and the secondary passing port are internally provided with filter screen grid plates.

3. The biofilter for treating organic waste gas in an electrophoretic coating line according to claim 1, wherein: the coarse filter layer is one of vermiculite, volcanic rock, limestone and gravel.

4. A biofilter for organic waste gas treatment in an electrophoretic coating line according to claim 1 or 3, wherein: the coarse filter layer is one of active carbon and coral sand.

5. The biofilter for treating organic waste gas in an electrophoretic coating line according to claim 1, wherein: the pretreatment tank is connected with a water pump.

6. The biofilter for treating organic waste gas in an electrophoretic coating line according to claim 1, wherein: the pre-passing openings at the lower parts of the walls of the pre-treatment tank and the primary filtering tank are not higher than the coarse filtering layer in the primary filtering layer; the height of the secondary through openings at the lower parts of the walls of the transition tank and the secondary filtering tank is not more than that of the coarse filtering layer in the secondary filtering layer.