CN212549009U - Biological fluidized bed for treating organic waste gas - Google Patents
Biological fluidized bed for treating organic waste gas Download PDFInfo
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- CN212549009U CN212549009U CN202020405203.XU CN202020405203U CN212549009U CN 212549009 U CN212549009 U CN 212549009U CN 202020405203 U CN202020405203 U CN 202020405203U CN 212549009 U CN212549009 U CN 212549009U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a biological fluidized bed for treating organic waste gas, which comprises a gas distribution chamber and a reaction chamber, wherein one side of the gas distribution chamber is provided with an air inlet; a reaction chamber is arranged above the gas distribution chamber, and a gas distribution clapboard is arranged between the reaction chamber and the gas distribution chamber; the gas distribution partition plate is provided with a gas distribution hole, a gas distribution pipe is arranged on the gas distribution hole, and a light ball is arranged in the gas distribution pipe and above the gas distribution hole; a biological medium is arranged in the reaction chamber; a filter chamber is arranged above the reaction chamber, a grating plate is arranged between the reaction chamber and the filter chamber, and an exhaust hole is formed above the filter chamber. The device has the advantages of reasonable and simple structure, convenient operation, long service life, low operating cost and small occupied area, and is suitable for treating low-concentration organic waste gas.
Description
Technical Field
The application relates to the technical field of organic waste gas purification, in particular to a biological fluidized bed for treating organic waste gas.
Background
With the progress of modernization, the organic waste gas in the atmosphere is increasing. The organic waste gas mainly comes from waste gas discharged by petrochemical industry, transportation, papermaking, pharmacy, coating, electroplating and other industries, and malodorous gas discharged by municipal sewage plants and black and odorous water bodies. The organic waste gas mainly comprises hydrocarbons, halogenated hydrocarbons, alcohols, ketones, aldehydes, ethers, acids, amines and the like, and the pollutants cause serious pollution to the atmosphere and are direct factors for increasing PM2.5 and forming haze.
The current organic waste gas treatment technologies are largely divided into two categories: one is the recovery technique; the other is a cancellation technique; the elimination technology mainly comprises a combustion method, a low-temperature plasma decomposition method, a biological method, a photochemical oxidation method, a catalytic oxidation method and the like. The common treatment processes of the biological method include a biological filtration method, a biological trickling filtration method, a biological washing method, a membrane bioreactor, a rotary drum biological filter, a composite suspended biological filter and the like. Most conventional organic waste gas biological treatment devices have the problems of large occupied area, high investment, high energy consumption and the like, and particularly, the fallen biological membrane blocks an air passage to cause uneven gas distribution, increased resistance and large difficulty in cleaning residual biological sludge, so that the service life of the device is short.
SUMMERY OF THE UTILITY MODEL
A biological fluidized bed for treating organic waste gas comprises a gas distribution chamber and a reaction chamber, wherein one side of the gas distribution chamber is provided with a gas inlet; a reaction chamber is arranged above the gas distribution chamber, and a gas distribution hole plate is arranged between the reaction chamber and the gas distribution chamber; the air distribution hole plate is provided with an air distribution hole, an air distribution pipe is arranged on the air distribution hole, and light pellets are arranged in the air distribution pipe and above the air distribution hole; a biological medium is arranged in the reaction chamber; a filter chamber is arranged above the reaction chamber, a grating plate is arranged between the reaction chamber and the filter chamber, and an exhaust hole is formed above the filter chamber.
Furthermore, the biological medium in the reaction chamber adopts EPS foaming filter beads, and the density is 20kg/m3-90kg/m3The porosity is 50% -60%; microorganisms are attached to the EPS foaming filter beads, adsorb pollutants in organic waste gas and then enterThe catalyst is degraded to generate CO2 and H2O, thereby achieving the purification effect.
Furthermore, a filter is arranged in the filter chamber, the filter is made of polyurethane for filtering cotton, and the filter adsorbs water mist in the air flow and impurities such as microbial films falling off from the reaction chamber, so that the purification efficiency is improved.
Furthermore, the top end of the gas distribution pipe is provided with a grid shaped like a Chinese character jing to prevent the light pellets from separating; the gas distribution pipe mainly has the function of forming gas flow beams to enable the biological medium to be in a fluidized state, and the number of the gas distribution pipes is set according to the gas amount.
Furthermore, the diameter of the light ball is larger than the inner diameter of the air distribution hole and smaller than the inner diameter of the air distribution pipe.
A biological fluidized bed for treating organic waste gas, which realizes the technical scheme that the steps are as follows:
(1) the pressurized and humidified low-concentration organic waste gas flows into a gas distribution chamber; the gas distribution chamber is internally provided with a gas distribution hole plate, a gas distribution pipe and a light ball, so that the organic waste gas is uniformly input into the reaction chamber at a certain flow rate, and the biological medium in the reaction chamber is in a fluidized state; the gas distribution pipe mainly has the function of forming gas flow beams to enable the biological medium to be in a fluidized state, and the number of the gas distribution pipes is set according to the gas amount.
(2) The gas distribution chamber uniformly inputs the organic waste gas into the reaction chamber through a gas distribution hole plate; the biological media in the reaction chamber are in a fluidized state, and the biological media in the fluidized state collide with each other, so that the aged microbial film falls off and is input into a filter chamber along with air flow; the biological medium in the reaction chamber is in a fluidized state and moves from bottom to top along with the movement direction of the air flow, so that the resistance of the filter material is greatly reduced, and the energy consumption is reduced.
(3) The organic waste gas is decomposed by microorganisms in the biological medium in the reaction chamber to generate CO2 and H2O;
(4) the purified tail gas is input into a filter chamber through a grating plate, and impurities and water mist are removed and discharged after reaching standards.
Advantageous effects
The application adopts EPS foaming filter beads as a microorganism carrier, the density of the EPS foaming filter beads is low, the EPS foaming filter beads can reach a fluidized state along with the movement of air flow, and under the fluidized state, the EPS foaming filter beads collide with each other, so that an aged microorganism membrane can fall off, and the microorganism membrane moves along with the air flow. The polyurethane filter cotton is used as a filter, so that the wind resistance is small, the filtering efficiency is high, and the defogging capability is strong. The device that this application relates to is rational in infrastructure simple, convenient operation, long service life, the working costs is low, area is little, is applicable to the treatment of low concentration organic waste gas.
Drawings
Fig. 1 is a schematic structural diagram of the present application.
In FIG. 1, 1-inlet, 2-distribution chamber, 3-reaction chamber, 4-filter chamber, 5-outlet, 6-distribution hole plate, 7-grid plate, 8-biological medium, 9-filter, 10-distribution pipe; 11-light weight pellets.
Detailed Description
The present application is further described below in conjunction with fig. 1 and the detailed description so as to fully understand the technical contents of the present application.
A biological fluidized bed for treating organic waste gas comprises a gas distribution chamber 2 and a reaction chamber 3, wherein a gas inlet 1 is arranged on one side of the gas distribution chamber 2; a reaction chamber 3 is arranged above the gas distribution chamber 2, and a gas distribution hole plate 6 is arranged between the reaction chamber and the gas distribution chamber; the air distribution hole plate 6 is provided with an air distribution hole, an air distribution pipe 10 is arranged on the air distribution hole, and light balls 11 are arranged in the air distribution pipe 10 and above the air distribution hole; a biological medium is arranged in the reaction chamber 3; a filter chamber 4 is arranged above the reaction chamber 3, a grating plate 7 is arranged between the filter chamber and the filter chamber, and an exhaust hole 5 is arranged above the filter chamber 4.
The biological medium in the reaction chamber 3 adopts EPS foaming filter beads, and the density is 20kg/m3-90kg/m3The porosity is 50% -60%; microorganisms are attached to the EPS foaming filter beads, adsorb pollutants in organic waste gas and degrade to generate CO2 and H2O, so that the purification effect is achieved.
The filter 9 is arranged in the filter chamber 4, the filter 9 is made of polyurethane for filtering cotton, and the filter 9 adsorbs water mist in air flow and impurities such as microbial films and the like falling off from the reaction chamber, so that the purification efficiency is improved.
The top end of the gas distribution pipe 10 is provided with a grid shaped like a Chinese character jing to prevent the light pellets from separating; the gas distribution pipes 10 mainly function to form gas flow beams to make the biological medium in a fluidized state, the number of the gas distribution pipes 10 is set according to the gas amount, and the number of the gas distribution pipes 10 is two in this embodiment.
The diameter of the light ball is larger than the inner diameter of the gas distribution hole and smaller than the inner diameter of the gas distribution pipe.
A biological fluidized bed for treating organic waste gas, which realizes the technical scheme that the steps are as follows:
(1) the pressurized and humidified low-concentration organic waste gas flows into the gas distribution chamber 2; the gas distribution chamber 2 is internally provided with a gas distribution hole plate 6, a gas distribution pipe 10 and light pellets 11, so that the organic waste gas is uniformly input into the reaction chamber 3 at a certain flow rate, and the biological medium in the reaction chamber 3 is in a fluidized state; the gas distribution pipe 10 mainly functions to form a gas flow beam to make the biological medium in a fluidized state, and the number of the gas distribution pipe 10 is set according to the gas amount.
(2) The gas distribution chamber 2 is provided with pressure gauges, hygrometers, thermometers and other instruments for detecting state parameters of the organic waste gas, and the gas distribution chamber 2 uniformly inputs the organic waste gas into the reaction chamber 3 through the gas distribution hole plate 6; the biological media in the reaction chamber 3 are in a fluidized state, and the biological media collide with each other in the fluidized state, so that the aged microbial film falls off and is input into the filter chamber 4 along with the air flow; the biological medium in the reaction chamber 3 is in a fluidized state, and the biological medium moves from bottom to top along with the movement direction of the air flow, so that the resistance of the filter material is greatly reduced, and the energy consumption is reduced.
(3) The organic waste gas is decomposed by microorganisms in the biological medium in the reaction chamber 3 to generate CO2 and H2O;
(4) the purified tail gas is input into the filter chamber 4 through the grating plate, and impurities and water mist are removed and discharged after reaching standards.
The above embodiments are merely provided for simple illustration and are not intended to limit the present application, and various modifications may be made by those skilled in the art based on the above description, all of which fall within the scope of the present invention.
Claims (5)
1. The biological fluidized bed for treating the organic waste gas is characterized by comprising a gas distribution chamber and a reaction chamber, wherein one side of the gas distribution chamber is provided with a gas inlet; a reaction chamber is arranged above the gas distribution chamber, and a gas distribution hole plate is arranged between the reaction chamber and the gas distribution chamber; the air distribution hole plate is provided with an air distribution hole, an air distribution pipe is arranged on the air distribution hole, and light pellets are arranged in the air distribution pipe and above the air distribution hole; a biological medium is arranged in the reaction chamber; a filter chamber is arranged above the reaction chamber, a grating plate is arranged between the reaction chamber and the filter chamber, and an exhaust hole is formed above the filter chamber.
2. The biological fluidized bed for treating organic waste gas according to claim 1, wherein the biological medium in the reaction chamber is EPS foaming filter beads.
3. The biological fluidized bed for treating organic waste gas according to claim 1, wherein a filter is arranged in the filter chamber, and the filter is made of polyurethane filter cotton.
4. The biological fluidized bed for treating organic waste gas according to claim 1, wherein the top end of the gas distribution pipe is provided with a grid shaped like a Chinese character jing.
5. The biological fluidized bed for treating organic waste gas according to claim 1, wherein the diameter of the light pellets is larger than the inner diameter of the gas distribution hole and smaller than the inner diameter of the gas distribution pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020405203.XU CN212549009U (en) | 2020-03-26 | 2020-03-26 | Biological fluidized bed for treating organic waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020405203.XU CN212549009U (en) | 2020-03-26 | 2020-03-26 | Biological fluidized bed for treating organic waste gas |
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| Publication Number | Publication Date |
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| CN212549009U true CN212549009U (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020405203.XU Active CN212549009U (en) | 2020-03-26 | 2020-03-26 | Biological fluidized bed for treating organic waste gas |
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| CN (1) | CN212549009U (en) |
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2020
- 2020-03-26 CN CN202020405203.XU patent/CN212549009U/en active Active
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