CN211562465U - Waste gas treatment system - Google Patents
Waste gas treatment system Download PDFInfo
- Publication number
- CN211562465U CN211562465U CN201922261913.XU CN201922261913U CN211562465U CN 211562465 U CN211562465 U CN 211562465U CN 201922261913 U CN201922261913 U CN 201922261913U CN 211562465 U CN211562465 U CN 211562465U
- Authority
- CN
- China
- Prior art keywords
- waste gas
- treatment system
- tank
- biological
- tower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a waste gas treatment system belongs to waste treatment technical field. A waste gas treatment system comprises a fan, a biological treatment system, an alkaline washing oxidation tower, an acid washing tower and an active carbon adsorption device which are sequentially connected, wherein the biological treatment system consists of a prewashing tank, a biological filter tank and a spraying system, PP filler is filled in the prewashing tank, the biological filter tank is filled with the biological filler, the fan extracts waste gas from a waste gas source and conveys the waste gas to the prewashing tank, the spraying system sprays the waste gas entering the prewashing tank and the biological filter tank, and the sprayed liquid is discharged from the bottom of the biological treatment system; the waste gas outlet of the pickling tower is communicated with the main exhaust pipeline; a dehumidifier is arranged on a pipeline connecting the front end of the air inlet of the active carbon adsorption device with the pickling tower, and the air outlet of the active carbon adsorption device is connected with the main exhaust pipeline. The waste gas treatment system has the advantages of simple process, convenient operation, low operating cost and strong impact resistance.
Description
Technical Field
The utility model relates to a waste gas treatment system belongs to waste treatment technical field.
Background
The treatment of exhaust gas is also called exhaust gas purification. The waste gas treatment refers to the work of pretreating waste gas generated in industrial places and factory workshops before the waste gas is discharged to the outside so as to reach the national standard of the external discharge of the waste gas. The general waste gas treatment comprises the aspects of organic waste gas treatment, dust waste gas treatment, acid-base waste gas treatment, peculiar smell waste gas treatment, air sterilization, disinfection and purification and the like.
The industrial waste gas treatment equipment is generally applied to places where dust, peculiar smell and smoke are generated in chemical plants, pharmaceutical factories, rubber factories, zinc plating workshops, petrochemical industries and the like. The existing waste gas treatment is complex in operation and weak in impact resistance. Thus improving upon existing processing systems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a waste gas treatment system, this waste gas treatment system have simple process, convenient operation, the working costs is low, advantage that impact resistance is strong.
The utility model provides a technical scheme that its technical problem adopted is:
a waste gas treatment system comprises a fan, a biological treatment system, an alkaline washing oxidation tower, an acid washing tower and an active carbon adsorption device which are connected in sequence,
the biological treatment system consists of a prewashing tank, a biological filter and a spraying system, wherein PP filler is filled in the prewashing tank, the biological filter is filled with the biological filler, the fan extracts waste gas from a waste gas source and conveys the waste gas to the prewashing tank, the spraying system sprays the waste gas entering the prewashing tank and the biological filter, and the sprayed liquid is discharged from the bottom of the biological treatment system;
the waste gas outlet of the pickling tower is communicated with the main exhaust pipeline;
a dehumidifier is arranged on a pipeline connecting the front end of the air inlet of the active carbon adsorption device with the pickling tower, and the air outlet of the active carbon adsorption device is connected with the main exhaust pipeline.
Preferably, the caustic wash oxidation tower and the acid wash tower are counter-current circulation washing towers.
Preferably, the biological treatment system is of a sealed box structure, the prewashing tank and the biological filter are divided into two independent units by a partition plate and are positioned on the upper layer of the biological treatment system, and a waste gas passage is reserved on the lower layer of the biological treatment system, so that waste gas enters the bottom of the biological filter from the bottom of the prewashing tank and is discharged from a gas outlet arranged on the top of the biological filter and enters the alkaline washing oxidation tower through a pipeline.
Preferably, the spraying system comprises a spraying pump, a circulating pump, a nozzle, a spraying pipeline and a water tank, the water tank is connected with the nozzle respectively arranged in the pre-washing tank and the biological filter through the spraying pipeline, the spraying pump is arranged on the spraying pipeline between the water tank and the nozzle, a water collecting tank is arranged at the bottom of the biological treatment system, and a water outlet pipeline of the water collecting tank is communicated with the water tank through the circulating pump.
Preferably, the spray heads, the demister, the spray head and the packing layer are sequentially arranged in the alkaline washing oxidation tower and the acid washing tower from top to bottom, the spray head in the alkaline washing oxidation tower is connected with the water tank of the alkaline washing oxidation tower through a pipeline, and the front end of the water tank of the alkaline washing oxidation tower is connected with the oxidant storage tank.
Preferably, the spray head in the pickling tower is connected with the acid water tank through a pipeline, and the front end of the acid water tank is connected with the acid storage tank.
The utility model has the advantages that:
the waste gas treatment system adopts a biofilter, two-stage chemistry and active carbon (emergency) treatment process. The principle is that waste gas is collected and then enters a biological filter treatment system for treatment, and the waste gas passes through a wet porous filter layer filled with active microorganisms, and the adsorption, absorption and degradation functions of the microorganisms on pollutants are utilized to decompose the pollutants into simple inorganic matters after adsorption so as to remove the pollutants. The chemical treatment process realizes the purification of the waste gas through the neutralization, oxidation reduction and other chemical reactions of the washing liquid and the residual pollutants in the waste gas. The chemical treatment process has the advantages of high reaction speed, strong impact load resistance, flexible operation, capability of running in a clearance way and the like.
Exhaust-gas treatment system sets up active carbon emergency treatment system, when hopeing to improve the treatment effect, discharges after accessible active carbon emergency treatment system handles.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention;
in the figure: 1. the system comprises a fan, 2, a prewashing tank, 3, a biological filter, 4, a circulating pump, 5, a spray pump, 6, a water tank, 7, an alkaline washing oxidation tower, 8, an alkaline washing oxidation tower water tank, 9, an oxidant storage tank, 10, an acid washing tower, 11, an acid water tank, 12, an acid storage tank, 13, a dehumidifier, 14 and an active carbon adsorption device.
Detailed Description
The technical solution of the present invention is further specifically described below by way of specific embodiments and with reference to the accompanying drawings. It is to be understood that the practice of the present invention is not limited to the following examples, and that any modifications and/or changes in form made to the present invention are intended to fall within the scope of the present invention.
The methods in the following examples are conventional in the art unless otherwise specified. The components or devices in the following examples are, unless otherwise specified, standard parts or parts known to those skilled in the art, the structure and principle of which are known to those skilled in the art through technical manuals or through routine experimentation.
Example (b):
the structure of the waste gas treatment system is shown in figure 1, the system comprises a fan 1, a biological treatment system, an alkaline washing oxidation tower 7, an acid washing tower 10 and an active carbon adsorption device 14 which are connected in sequence,
the biological treatment system consists of a prewashing tank 2, a biological filter 3 and a spraying system, wherein PP filler is filled in the prewashing tank, biological filler is filled in the biological filter, the fan extracts waste gas from a waste gas source and conveys the waste gas to the prewashing tank, the spraying system sprays the waste gas entering the prewashing tank and the biological filter, and the sprayed liquid is discharged from the bottom of the biological treatment system; the waste gas outlet of the pickling tower is communicated with the main exhaust pipeline;
a dehumidifier 13 is arranged on a pipeline connecting the front end of the air inlet of the active carbon adsorption device with the pickling tower, and the air outlet of the active carbon adsorption device is connected with the main exhaust pipeline. The activated carbon adsorption device is filled with activated carbon, and when the air inlet fluctuation is large, the system can discharge the air after being treated by the activated carbon adsorption device to achieve a higher treatment effect.
The biological treatment system is of a sealed box structure, the prewashing tank and the biological filter are separated into two independent units by a partition plate and are positioned on the upper layer of the biological treatment system, and a waste gas passage is reserved on the lower layer of the biological treatment system, so that waste gas enters the bottom of the biological filter from the bottom of the prewashing tank, is discharged from a gas outlet arranged at the top of the biological filter and enters the alkaline washing oxidation tower through a pipeline.
The spraying system comprises a spraying pump 5, a circulating pump 4, a nozzle, a spraying pipeline and a water tank 6, the water tank is connected with the nozzle respectively arranged in the pre-washing tank and the biological filter through the spraying pipeline, the spraying pump is arranged on the spraying pipeline between the water tank and the nozzle, a water collecting tank is arranged at the bottom of the biological treatment system, and a water outlet pipeline of the water collecting tank is communicated with the water tank through the circulating pump.
The alkali washing oxidation tower and the acid washing tower are counter-current circulating washing towers. The spray heads in the alkaline washing oxidation tower are connected with an alkaline washing oxidation tower water tank 8 through pipelines, and the front end of the alkaline washing oxidation tower water tank is connected with an oxidant storage tank 9. The spray head in the pickling tower is connected with an acid water tank 11 through a pipeline, and the front end of the acid water tank is connected with an acid storage tank 12.
When the system operates, the fan extracts waste gas from the waste gas source by utilizing negative pressure, the waste gas is conveyed to the inside of the waste gas treatment system through the pipeline, and the switching valve is arranged on the pipeline to adjust the gas flow direction.
The pre-washing tank is filled with commercially available PP filler, and waste gas entering the system at the top of the pre-washing tank is sprayed, so that the gas is further humidified and part of soluble pollutants are absorbed, and conditions are created for the subsequent biological filter treatment process. The pre-washing tank is positioned at the front end of the biological filter tank and is used for removing solid pollutants in odor and adjusting the temperature and the humidity of the odor. The prewash tank is used as an effective buffer, and can reduce the peak value of high-concentration pollution load.
The biological filter is the core part of the waste gas treatment system, biological filler is filled in the biological filter as a microorganism growth carrier, and waste gas is adsorbed, absorbed and gradually decomposed and utilized by microorganisms, so that waste gas pollutants are removed. The exhaust gas passes through a wet, porous and active microbe-filled filter layer, and the microbial cells adsorb, absorb and degrade the malodorous substances. The spraying system in the biological filter is controlled by an automatic control system, and intermittent spraying is carried out according to actual conditions, so that the filler keeps constant humidity, and an environment beneficial to the growth of microorganisms is created.
The alkaline washing oxidation tower has the functions: the concentration of pollutants in the odor is reduced by the acid-base neutralization reaction of the sprayed sodium hydroxide with hydrogen sulfide and volatile organic compounds in the waste gas. And spraying sodium hypochlorite to react with the reductive pollutants in the waste gas, so as to further reduce the concentration of the pollutants in the odor. The function of the pickling tower is as follows: spraying dilute sulfuric acid to perform a neutralization reaction with alkaline gas in the waste gas to treat pollutants in the waste gas; oxidant storage tank and acid storage tank functions: the water-based oxidant and the acid liquor are respectively used for storing the oxidant and the acid liquor, and are convenient to add.
The alkaline washing oxidation tower and the acid washing tower realize the purification of the waste gas through chemical reactions such as neutralization, oxidation reduction and the like of washing liquid and waste gas pollutants. The system adopts a counter-flow type circulating washing tower with the highest mass transfer efficiency. The washing liquid is sprayed onto the packing from the top of the tower and flows along the packing from top to bottom. Organic waste gas enters from the bottom of the washing tower and moves from bottom to top through the filler gap. The gas phase and the liquid phase generate turbulence in a convection mode, so that the contact probability and the contact area of the waste gas and the washing liquid are increased, and the treatment efficiency is obviously improved. And the washing liquid is fully contacted with the waste gas and then falls back to a liquid storage space at the lower part of the washing tower, and is lifted to the tower top for secondary spraying by the circulating spraying pump, so that the cyclic utilization is realized. The DCS control system periodically commands the emptying electric valve to be opened, the liquid medicine feeding pump supplements alkali liquor/oxidant/acid to the liquid storage space so as to keep sufficient concentration of circulating liquid, and the alkali washing oxidation/acid washing tower is guaranteed to maintain high removal efficiency.
The dehumidifier functions: the waste gas from the front end is dehumidified by the dehumidifier, the humidity is obviously reduced, and the dehumidified waste gas enters the activated carbon adsorption device through the pipeline to protect the activity of the activated carbon.
The activated carbon adsorption device has the functions: mainly comprises an air inlet cavity, a bearing layer, an active carbon layer and an air outlet cavity, and the removal of pollutants occurs in the active carbon layer. The activated carbon layer adopts coal columnar activated carbon, has the advantages of developed pores, large specific surface area, strong adsorption capacity and the like, and the removal of pollutants is a result of the combined action of physical adsorption and chemical adsorption (also called active adsorption).
The waste gas treatment system has the following two operation conditions, and ensures that the opening states of the fan and the air valve are correct when the corresponding operation conditions are selected:
a. the working condition I is as follows:
and (4) normal operation: the circulating water pump, the alkaline washing oxidation tower spray pump or the acid washing tower spray pump do not fail at the same time, and the centrifugal fan does not fail) the waste gas path is as follows: the exhaust gas is discharged after being treated by a biological filter and a chemical tower;
b. working conditions are as follows:
when the intake fluctuation is large, and the exhaust gas treatment effect needs to be improved:
when the circulating water pump, the alkaline washing oxidation tower spray pump or the acid washing tower spray pump fail at the same time, the centrifugal fan does not fail, and the waste gas treatment path is as follows: the waste gas is discharged after passing through a pre-washing tank, a biological filter and a post-positioned active carbon device.
The technical parameters of the waste gas treatment system are as follows:
A. the system processing capacity: 15000m3/h，
B. The system operating power is as follows: the power supply of the power supply is 74kW,
C. external dimension of the biological treatment system: 13 m.times.5 m.times.3.0 m (with 400mm weir),
D. the overall dimension phi of the alkaline washing oxidation tower is 2.2m multiplied by 5.0m,
E. the external dimension of the pickling tower is as follows: phi 2.2m is multiplied by 5.0m,
F. external dimension of the activated carbon adsorption device (tower): 3.1 m.times.3.0 m.times.2.8 m.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.
Claims (6)
1. An exhaust treatment system, characterized by: the system comprises a fan, a biological treatment system, an alkaline washing oxidation tower, an acid washing tower and an active carbon adsorption device which are connected in sequence,
the biological treatment system consists of a prewashing tank, a biological filter and a spraying system, wherein PP filler is filled in the prewashing tank, the biological filter is filled with the biological filler, the fan extracts waste gas from a waste gas source and conveys the waste gas to the prewashing tank, the spraying system sprays the waste gas entering the prewashing tank and the biological filter, and the sprayed liquid is discharged from the bottom of the biological treatment system;
the waste gas outlet of the pickling tower is communicated with the main exhaust pipeline;
a dehumidifier is arranged on a pipeline connecting the front end of the air inlet of the active carbon adsorption device with the pickling tower, and the air outlet of the active carbon adsorption device is connected with the main exhaust pipeline.
2. An exhaust treatment system according to claim 1, wherein: the alkali washing oxidation tower and the acid washing tower are counter-current circulating washing towers.
3. An exhaust treatment system according to claim 1, wherein: the biological treatment system is of a sealed box structure, the prewashing tank and the biological filter are separated into two independent units by a partition plate and are positioned on the upper layer of the biological treatment system, and a waste gas passage is reserved on the lower layer of the biological treatment system, so that waste gas enters the bottom of the biological filter from the bottom of the prewashing tank, is discharged from a gas outlet arranged at the top of the biological filter and enters the alkaline washing oxidation tower through a pipeline.
4. An exhaust gas treatment system according to claim 1 or 3, wherein: the spraying system comprises a spraying pump, a circulating pump, a nozzle, a spraying pipeline and a water tank, the water tank is connected with the nozzle respectively arranged in the pre-washing tank and the biological filter through the spraying pipeline, the spraying pump is arranged on the spraying pipeline between the water tank and the nozzle, a water collecting tank is arranged at the bottom of the biological treatment system, and a water outlet pipeline of the water collecting tank is communicated with the water tank through the circulating pump.
5. An exhaust treatment system according to claim 1, wherein: the spray heads in the alkaline washing oxidation tower are connected with an alkaline washing oxidation tower water tank through pipelines, and the front end of the alkaline washing oxidation tower water tank is connected with an oxidant storage tank.
6. An exhaust treatment system according to claim 5, wherein: the spray head in the acid washing tower is connected with an acid water tank through a pipeline, and the front end of the acid water tank is connected with an acid storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922261913.XU CN211562465U (en) | 2019-12-16 | 2019-12-16 | Waste gas treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922261913.XU CN211562465U (en) | 2019-12-16 | 2019-12-16 | Waste gas treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211562465U true CN211562465U (en) | 2020-09-25 |
Family
ID=72534833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922261913.XU Active CN211562465U (en) | 2019-12-16 | 2019-12-16 | Waste gas treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211562465U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112588050A (en) * | 2020-11-25 | 2021-04-02 | 江西捷美软包装有限公司 | Waste gas treatment device for high-temperature steaming bag curing chamber |
| CN113856438A (en) * | 2021-09-15 | 2021-12-31 | 北京北华清创环境工程有限公司 | Odor treatment system and method for high-sensitivity area |
| CN114135969A (en) * | 2021-11-25 | 2022-03-04 | 爱优特空气技术（上海）有限公司 | Tunnel purification system with self-water-supply cleaning and dehumidifying functions |
| CN114177765A (en) * | 2021-11-11 | 2022-03-15 | 江苏省环境工程技术有限公司 | Alcohol-containing waste gas treatment device and method |
| CN117180962A (en) * | 2023-09-07 | 2023-12-08 | 苏州绿朗环境科技有限公司 | Malodorous waste gas treatment method for high-concentration sewage station |
| CN114177765B (en) * | 2021-11-11 | 2024-08-02 | 江苏省环境工程技术有限公司 | Alcohol-containing waste gas treatment device and method |
-
2019
- 2019-12-16 CN CN201922261913.XU patent/CN211562465U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112588050A (en) * | 2020-11-25 | 2021-04-02 | 江西捷美软包装有限公司 | Waste gas treatment device for high-temperature steaming bag curing chamber |
| CN113856438A (en) * | 2021-09-15 | 2021-12-31 | 北京北华清创环境工程有限公司 | Odor treatment system and method for high-sensitivity area |
| CN114177765A (en) * | 2021-11-11 | 2022-03-15 | 江苏省环境工程技术有限公司 | Alcohol-containing waste gas treatment device and method |
| CN114177765B (en) * | 2021-11-11 | 2024-08-02 | 江苏省环境工程技术有限公司 | Alcohol-containing waste gas treatment device and method |
| CN114135969A (en) * | 2021-11-25 | 2022-03-04 | 爱优特空气技术（上海）有限公司 | Tunnel purification system with self-water-supply cleaning and dehumidifying functions |
| CN117180962A (en) * | 2023-09-07 | 2023-12-08 | 苏州绿朗环境科技有限公司 | Malodorous waste gas treatment method for high-concentration sewage station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211562465U (en) | Waste gas treatment system | |
| CN205925352U (en) | Particle crowd electrode electricity catalytic oxidation treated water solubility organic waste gas's device | |
| CN103055669B (en) | A kind of Method And Device For Exhaust Air Purifying Treatment | |
| CN103830986A (en) | Integrated dust removal-purification device and purification method of stationary diesel engine system | |
| CN110711485A (en) | Waste gas purification device for sewage treatment station of sterile raw material medicine production line | |
| CN105148656A (en) | Comprehensive disposal system for malodorous organic exhaust gas | |
| CN112973333A (en) | Kitchen waste and waste gas treatment combined device and process thereof | |
| CN107349769A (en) | A kind of beer waste water foul smell puies forward mark processing system and technique | |
| CN206730825U (en) | A kind of system for handling foul gas | |
| CN202460442U (en) | Acid mist absorption processing device of high-pressure water mist | |
| CN111558291A (en) | Coking wastewater treatment and odor deodorization system and process | |
| CN208449008U (en) | A kind of combined type organic waste-gas purification and recyclable device | |
| CN213375919U (en) | Complete device for waste gas treatment | |
| CN210356682U (en) | Industrial waste water high concentration composite biological deodorization device | |
| CN205379766U (en) | Organic waste gas adsorbs concentrated thermolysis processing system | |
| CN209451632U (en) | A kind of pig house environmental protection grade deodorizing process system | |
| CN107174922A (en) | A kind of closed waste gas circulation processing system of air film | |
| CN201997243U (en) | Medical garbage incineration tail gas purifying system | |
| CN108499355A (en) | Photoelectric catalysis degrading dimethylamine device and its waste gas processing method | |
| CN216295680U (en) | Novel small-size chemical production tail gas treatment device | |
| CN113134278B (en) | Environment management device for garbage transfer station | |
| CN213790936U (en) | Domestic waste transfer station exhaust treatment device | |
| CN113634104A (en) | Treatment process of waste gas generated in kitchen waste treatment process | |
| CN210206414U (en) | Waste gas deodorizing device | |
| CN209254476U (en) | A kind of off-gas cleaning equipment of organic waste equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |