CN210584468U - Foul gas collecting and biological treatment system - Google Patents
Foul gas collecting and biological treatment system Download PDFInfo
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- CN210584468U CN210584468U CN201921228359.9U CN201921228359U CN210584468U CN 210584468 U CN210584468 U CN 210584468U CN 201921228359 U CN201921228359 U CN 201921228359U CN 210584468 U CN210584468 U CN 210584468U
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Abstract
The utility model discloses a malodorous gas collection and biological treatment system, which mainly comprises a gas collecting hood, a washing device and a biological deodorization device which are connected in sequence; gas collecting channel top sets up the gas outlet, water washing device mainly includes the tower body, set up the inner tube in the tower body, the inner tube top sets up first washing shower nozzle, the inner tube bottom sets up the gas distribution dish, the gas distribution dish is connected with the intake-tube of tower body lateral wall, the tower body top sets up the outlet duct, the foul smell access connection of outlet duct and biological deodorization device lateral wall, biological deodorization device mainly includes a jar body, jar body bottom sets up foraminiferous baffle, foraminiferous baffle top sets up bio-packing layer, bio-packing layer top sets up the deodorization shower nozzle, and this system gas collecting channel long service life, washing spray effectually, and foul gas treatment is effectual, simple process, operation are stable, no secondary pollution, with low costs, management maintenance convenience.
Description
Technical Field
The utility model relates to a foul gas handles the field, especially relates to a foul gas collects and biological treatment system.
Background
The malodorous gas mainly comes from the production processes of sewage treatment and factory processing, such as livestock and poultry breeding, municipal sewage treatment plants, food processing, natural gas, petroleum refining, pesticide production, artificial fiber and the like. With the vigorous development of sewage treatment plants, the problem of malodorous gas pollution generated in the sewage treatment process also arises.
Malodorous gas has serious influence on the ecological environment, and simultaneously has great threat to human health, which can cause the central nerve of human body to generate obstacles and pathological changes to cause chronic diseases and acute diseases. According to the composition of the malodorous gas, the malodorous gas can be divided into oxygen-containing organic substances, sulfur-containing compounds, nitrogen-containing compounds, hydrocarbons, halogens and derivatives, wherein the influence of sulfur dioxide, dimethyl sulfide, methyl mercaptan, ammonia gas and the like is the worst. In order to prevent odor emitted from a sewage treatment plant from polluting the surrounding environment and improve and promote the living environment of workers and surrounding residents in the plant area of the sewage treatment plant, it is important to collect and concentrate the malodorous gas.
Aiming at the malodorous gas generated in the sewage treatment process, the traditional collection process adds a glass fiber reinforced plastic gas collecting hood above a sewage water inlet area and a sewage treatment area, isolates and collects the waste gas generated in the sewage treatment process from air, and adds a gas outlet and an installation ventilation pipeline on the surface of the gas collecting hood, so that the malodorous gas enters the subsequent treatment by the ventilation pipeline and then is discharged after reaching the standard.
Common malodorous gases are treated by physical methods (adsorption), chemical methods (combustion, oxidation, photocatalysis, absorption, neutralization, etc.) and biological methods (bio-trickling filtration, bio-filtration tower, bio-scrubbing, etc.). Physical methods such as adsorption methods are suitable for treating malodorous gases with low pollution concentration and high purification requirements, but have the problems of low adsorption effect, difficult regeneration and utilization of adsorbents and the like; the chemical method is suitable for treating malodorous gases with various concentrations, can quickly eliminate the influence of malodorous gases, but has the problems of easy corrosion of equipment, high treatment cost, easy generation of secondary pollutants and the like; the biological treatment technology has incomparable advantages compared with other traditional methods, such as low operation cost, good treatment effect, no secondary pollution, simple equipment and process, convenient management and maintenance and the like, and has received wide attention at home and abroad.
The research finds that the following problems exist when the malodorous gas is treated by a biological method:
firstly, the method comprises the following steps: the malodorous gas has many sources, complex components and unstable properties, and the gas-collecting hood is easy to corrode in the process of collecting the gas;
secondly, the method comprises the following steps: the odor contains a large amount of particles and harmful components, which easily causes the blockage of biological fillers, thereby causing the poor operation of a process system;
thirdly, the method comprises the following steps: the air distribution and the spraying in the washing process are unscientific, so that the spraying and washing effect is poor.
Chinese patent CN205164431U discloses an atomizing spray deodorizing device, which comprises a water tank, a high-pressure pump, a spraying device, a water outlet, a bearing net, an air inlet and an air outlet; the spraying device is positioned at the top of the device; the supporting net is positioned in the middle of the device; the water tank is positioned at the bottom of the device; odor decomposing microorganisms grow in the water tank; biological fillers are placed on the supporting net; the water mist sprayed by the spraying device can directly penetrate through the supporting net; also have the gas distribution in this patent and spray unreasonable problem, gas is intensive in air inlet department, and it is not good to spray the effect, and the large granule in the gas can block up biofilm carrier.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a gas collecting channel long service life, washing spray effectually, and foul gas treatment effect is good, simple process, operation are stable, no secondary pollution, with low costs, management maintain convenient foul gas collection and biological treatment system.
In order to realize the purpose of the utility model, the technical proposal of the utility model is that:
a foul gas collecting and biological treatment system mainly comprises a gas collecting hood, a water washing device and a biological deodorization device which are connected in sequence; the gas collecting channel top sets up the gas outlet, water washing device mainly includes the tower body, set up the inner tube in the tower body, the inner tube bottom is the back taper, and the inner tube top sets up first washing shower nozzle, the inner tube bottom sets up the gas distribution dish, the gas distribution dish is with the intake-tube connection of tower body lateral wall, the tower body top sets up the outlet duct, the foul smell access connection of outlet duct and biological deodorization device lateral wall, biological deodorization device mainly includes a jar body, jar body bottom sets up foraminiferous baffle, foraminiferous baffle top sets up bio-packing layer, the bio-packing layer top sets up the deodorization shower nozzle, jar body top still sets up the delivery pipe.
Preferably, a fan is further arranged between the gas collecting hood and the water washing device, and the fan is connected with the control system.
Preferably, the gas-collecting hood is a frameless metal glass fiber reinforced plastic gas-collecting hood, the inner surface and the outer surface of the gas-collecting hood are coated with anticorrosive coatings, and the gas-collecting hood is also provided with an access hole, an observation window and a sampling hole.
Preferably, a second washing nozzle is arranged above the inner cylinder, and the first washing nozzle and the second washing nozzle are both connected with the first water tank; the tower body bottom sets up first reflux pipe and first blow off pipe, first reflux pipe is connected with first water tank, still sets up first reflux pump on the first reflux pipe, first reflux pump is connected with control system.
Preferably, the top of the tank body is further provided with a temperature detector and a gas humidity detector, and the temperature detector and the gas humidity detector are both connected with a control system.
Preferably, the bottom of the tank body is further provided with a second return pipe and a second sewage discharge pipe, the other end of the second return pipe is connected with a second water tank, the second return pipe is further provided with a second return pump, and the second return pump is connected with the control system.
Preferably, the discharge pipe is further provided with a gas detector and a three-way valve, the other way of the three-way valve is connected with a gas return pipe, the gas return pipe is communicated with an odor inlet on the side wall of the biological deodorization device, and the gas detector and the three-way valve are both connected with a control system.
The utility model has the advantages that:
firstly, the method comprises the following steps: the malodorous gas is treated by a plurality of procedures by adopting physical spraying washing and biological fillers and then is discharged after reaching the standard, and washing water and a microbial agent can be recycled for a plurality of times in the treatment process, so that the cost is saved;
secondly, the method comprises the following steps: the biological filler has long service life and strong microbial activity, particularly can effectively remove specific pollutants such as hydrogen sulfide, ammonia gas, methyl mercaptan and the like, and malodorous substances are degraded or converted into CO2、H2O、H2SO4、HNO3And the like;
thirdly, the method comprises the following steps: the inner surface and the outer surface of the gas-collecting hood are coated with anticorrosive coatings, so that the gas-collecting hood is prevented from being corroded, and the service life of the gas-collecting hood is prolonged;
fourthly: the tower body is internally provided with an inner cylinder, the bottom of the inner cylinder is in an inverted cone shape, the bottom of the inner cylinder is provided with a gas distribution disc, gas is firstly distributed in the inner cylinder, first water washing is firstly intensively carried out in a small space, and malodorous gas drifts out from the top of the inner cylinder and then is subjected to second water washing, so that the water washing effect is good, large particles in the malodorous gas and harmful substances capable of being dissolved in water can be removed, and the biological filler is prevented from being blocked;
fifth, the method comprises the following steps: the temperature detector and the gas humidity detector are arranged in the tank body, the temperature and the humidity of gas in the tank body are detected, the acquired signals are transmitted to the control system, the air input and the air output as well as the spraying water quantity of the deodorization sprayer are controlled by the control system, and the temperature and the humidity of the gas in the tank body are controlled, so that the increase of the operation resistance and the reduction of the air permeability caused by excessive or insufficient humidity are prevented, and the concentration of pollutants in the air output is increased;
sixth: the whole process is simple, the equipment operation is stable, the treatment effect is good, no secondary pollution is caused, and the management and maintenance are convenient.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1 is a gas collecting hood, 1.1 is an air outlet, 2 is a tower body, 2.1 is an inner cylinder, 2.2 is a first washing nozzle, 2.3 is an air distribution plate, 2.4 is an air inlet pipe, 2.5 is an air outlet pipe, 2.6 is a second washing nozzle, 2.7 is a first return pipe, 2.8 is a first drain pipe, 3 is a tank body, 3.1 is an odor inlet, 3.2 is a perforated partition plate, 3.3 is a biological packing layer, 3.4 is a deodorization nozzle, 3.5 is a drain pipe, 3.6 is a second return pipe, 3.7 is a second drain pipe, 4 is a fan, 5 is a control system, 6 is a first water tank, 7 is a first return pump, 8 is a temperature detector, 9 is a gas humidity detector, 10 is a second water tank, 11 is a second return pump, 12 is a gas detector, 13 is a three-way valve, and 14 is an air return pipe.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. A foul gas collecting and biological treatment system mainly comprises a gas collecting hood 1, a water washing device and a biological deodorization device which are connected in sequence; gas collecting channel 1 top sets up gas outlet 1.1, water washing device mainly includes tower body 2, set up inner tube 2.1 in the tower body 2, inner tube 2.1 bottom is the back taper, and inner tube 2.1 top sets up first washing shower nozzle 2.2, inner tube 2.1 bottom sets up gas distribution dish 2.3, gas distribution dish 2.3 is connected with intake pipe 2.4 of 2 lateral walls of tower body, 2 tops of tower body set up outlet duct 2.5, outlet duct 2.5 is connected with the foul smell import 3.1 of biological deodorization device lateral wall, biological deodorization device mainly includes jar body 3, jar body 3 bottom sets up foraminiferous baffle 3.2, foraminiferous baffle 3.2 top sets up bio-packing layer 3.3, biological 3.3 top sets up deodorization shower nozzle 3.4, jar body 3 top still sets up delivery pipe 3.5.
Preferably, a fan 4 is further arranged between the gas collecting hood 1 and the water washing device, and the fan 4 is connected with a control system 5 (not shown in the figure).
Preferably, the gas collecting hood 1 is a frameless metal glass fiber reinforced plastic gas collecting hood, the inner surface and the outer surface of the gas collecting hood 1 are coated with anticorrosive coatings, and the gas collecting hood 1 is further provided with an access hole, an observation window and a sampling hole.
Preferably, a second washing nozzle 2.6 is further arranged above the inner cylinder 2.1, and the first washing nozzle 2.2 and the second washing nozzle 2.6 are both connected with a first water tank 6; the bottom of the tower body 2 is provided with a first return pipe 2.7 and a first drain pipe 2.8, the first return pipe 2.7 is connected with a first water tank 6, the first return pipe 2.7 is also provided with a first return pump 7, and the first return pump 7 is connected with a control system 5 (not marked in the figure).
Preferably, a temperature detector 8 and a gas humidity detector 9 are further disposed on the top of the tank 3, and both the temperature detector 8 and the gas humidity detector 9 are connected to the control system 5 (not shown in the figure).
Preferably, the bottom of the tank body 3 is further provided with a second return pipe 3.6 and a second sewage draining pipe 3.7, the other end of the second return pipe 3.6 is connected with a second water tank 10, the second return pipe 3.6 is further provided with a second return pump 11, and the second return pump 11 is connected with the control system 5 (not shown in the figure).
Preferably, a gas detector 12 and a three-way valve 13 are further disposed on the discharge pipe 3.5, another port of the three-way valve 13 is connected to a gas return pipe 14, the gas return pipe 14 is communicated with the odor inlet 3.1 on the side wall of the biological deodorization device, and both the gas detector 12 and the three-way valve 13 are connected to the control system 5.
The working principle of the system is as follows:
step (1): malodorous gas generated by a sewage treatment structure passes through the gas collecting hood 1 and a collecting pipeline, is pumped into the tower body 2 of the water washing device by using the fan 4, firstly enters the inner cylinder 2.1, and firstly carries out first concentrated spraying and water washing in a small range because the inner cylinder 2.1 has small volume, and then the malodorous gas drifts out of the inner cylinder 2.1 and reaches the upper part of the inner cylinder 2.1, and then passes through second spraying and water washing, so that the water washing effect is good;
step (2): the malodorous gas enters a biological deodorization device, passes through a perforated clapboard 3.2 and then enters a biological filler layer 3.3, and is adsorbed, absorbed and degraded by microorganisms, so that the malodorous gas is degraded or converted into CO2、H2O、H2SO4、HNO3And the like;
and (3): the malodorous gas treated in the step (2) passes through the gas detector 12 before being discharged, and is discharged when reaching the standard, and returns to be treated again when not reaching the standard.
It is to be reemphasized that: the system is provided with a control system 5, wherein the control system 5 can be a computer provided with control software, and the control system 5 is used for controlling various valves, a fan 4, a first reflux pump 7, a second reflux pump 11 and other components, which belong to the prior art; in addition, set up temperature detector 8 and gas humidity detector 9 on biological deodorization device's jar body 3, temperature detector 8 and gas humidity detector 9 feed back the signal that detects to control system 5, and control system 5 controls air input, gas output and the volume of spraying water etc. in jar body 3 according to feedback signal, can control jar interior foul gas's of body 3 temperature and humidity, and this kind of mode also is prior art.
The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (7)
1. A foul gas collecting and biological treatment system is characterized in that: mainly comprises a gas-collecting hood, a water washing device and a biological deodorization device which are connected in sequence; the gas collecting channel top sets up the gas outlet, water washing device mainly includes the tower body, set up the inner tube in the tower body, the inner tube bottom is the back taper, and the inner tube top sets up first washing shower nozzle, the inner tube bottom sets up the gas distribution dish, the gas distribution dish is with the intake-tube connection of tower body lateral wall, the tower body top sets up the outlet duct, the foul smell access connection of outlet duct and biological deodorization device lateral wall, biological deodorization device mainly includes a jar body, jar body bottom sets up foraminiferous baffle, foraminiferous baffle top sets up bio-packing layer, the bio-packing layer top sets up the deodorization shower nozzle, jar body top still sets up the delivery pipe.
2. The malodorous gas collection and biological treatment system as claimed in claim 1, wherein a fan is further arranged between the gas-collecting hood and the water washing device, and the fan is connected with the control system.
3. The malodorous gas collection and biological treatment system as claimed in claim 1, wherein the gas-collecting hood is a frameless metal glass fiber reinforced plastic gas-collecting hood, the inner and outer surfaces of the gas-collecting hood are coated with anticorrosive coatings, and the gas-collecting hood is further provided with an inspection hole, an observation window and a sampling hole.
4. The malodorous gas collection and biological treatment system according to claim 1, wherein a second water washing nozzle is arranged above the inner cylinder, and the first water washing nozzle and the second water washing nozzle are both connected with a first water tank; the tower body bottom sets up first reflux pipe and first blow off pipe, first reflux pipe is connected with first water tank, still sets up first reflux pump on the first reflux pipe, first reflux pump is connected with control system.
5. The malodorous gas collection and biological treatment system according to claim 1, wherein a temperature detector and a gas humidity detector are arranged on the top of the tank body, and both the temperature detector and the gas humidity detector are connected with a control system.
6. The malodorous gas collection and biological treatment system as claimed in claim 1, wherein a second return pipe and a second sewage discharge pipe are further arranged at the bottom of the tank body, the other end of the second return pipe is connected with a second water tank, a second reflux pump is further arranged on the second return pipe, and the second reflux pump is connected with the control system.
7. The system for collecting and biologically treating malodorous gases as claimed in claim 1, wherein the discharge pipe is further provided with a gas detector and a three-way valve, the other way of the three-way valve is connected with a gas return pipe, the gas return pipe is communicated with an odor inlet on the side wall of the biological deodorization device, and the gas detector and the three-way valve are both connected with the control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921228359.9U CN210584468U (en) | 2019-08-01 | 2019-08-01 | Foul gas collecting and biological treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921228359.9U CN210584468U (en) | 2019-08-01 | 2019-08-01 | Foul gas collecting and biological treatment system |
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| Publication Number | Publication Date |
|---|---|
| CN210584468U true CN210584468U (en) | 2020-05-22 |
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| CN201921228359.9U Active CN210584468U (en) | 2019-08-01 | 2019-08-01 | Foul gas collecting and biological treatment system |
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| CN (1) | CN210584468U (en) |
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