CN215388529U - Collecting and processing system for waste gas generated in hazardous waste treatment process - Google Patents
Collecting and processing system for waste gas generated in hazardous waste treatment process Download PDFInfo
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- CN215388529U CN215388529U CN202121801372.6U CN202121801372U CN215388529U CN 215388529 U CN215388529 U CN 215388529U CN 202121801372 U CN202121801372 U CN 202121801372U CN 215388529 U CN215388529 U CN 215388529U
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Abstract
The utility model relates to an exhaust gas collecting and treating system. The purpose is to provide a collection efficiency height, gets rid of the exhaust treatment system that produces among the effectual hazardous waste processing process to effectively solve the current useless breakage of danger of administering and store the serious problem of material in-process unorganized waste gas diffusion. The technical scheme is as follows: a collecting and processing system for waste gas generated in the process of hazardous waste treatment comprises a crushing room, a hazardous waste storage room, a water spray tower, an alkali spray tower, an induced draft fan, a surface cooler, a disposable activated carbon box and a secondary activated carbon tank which are sequentially communicated through a waste gas collecting pipeline; the gas absorbed by the secondary activated carbon canister is discharged at high altitude through an exhaust funnel; the desorption system carries out desorption treatment on the active carbon which is saturated in the secondary active carbon tank, and the organic matter after desorption treatment is input into the organic matter recovery device for incineration treatment.
Description
Technical Field
The utility model relates to an exhaust gas collecting and treating system, in particular to a system for collecting and treating exhaust gas generated in the process of crushing and storing hazardous waste.
Background
In recent years, with the increasingly improved industrial system in China, the types and the production amount of dangerous wastes (hereinafter referred to as dangerous wastes) are on the trend of increasing year by year. Hazardous waste poses a great threat to the ecological environment and human health due to the properties of corrosivity, high toxicity, inflammability and the like. Hazardous waste incineration is a technology widely applied to hazardous waste disposal at present. Before incineration, the hazardous wastes can volatilize malodorous gas in the process of crushing and temporarily storing the hazardous wastes in a material storage pit.
The waste gas components of the crushing and storage pit are complex and the fluctuation of the discharge concentration is large, including VOCs, particulate matters and H2S、NH3And the like. At present, the waste gas is generally collected and treated by inorganization discharge or is introduced into the rotary kiln as supplementary fresh air. The former seriously affects the surrounding environment and human health, and the latter has potential safety hazards such as explosion caused by tempering. Therefore, it is urgently needed to develop a safe and efficient new system for treating the waste gas generated in the treatment process of the hazardous waste.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the background technology and provide a waste gas treatment system which is high in collection efficiency and good in removal effect and is generated in the hazardous waste treatment process, so as to effectively solve the problem of serious diffusion of unorganized waste gas in the process of treating the conventional hazardous waste crushing and material storage.
The technical scheme provided by the utility model is as follows:
a collecting and processing system for waste gas generated in a hazardous waste processing process,
comprises a crushing room, a hazardous waste storage room, a water spray tower, an alkali spray tower, a draught fan, a surface cooler, a disposable activated carbon box and a secondary activated carbon tank which are sequentially communicated through a waste gas collecting pipeline; the gas absorbed by the secondary activated carbon canister is discharged at high altitude through an exhaust funnel; the desorption system carries out desorption treatment on the active carbon which is saturated in the secondary active carbon tank, and the organic matter after desorption treatment is input into the organic matter recovery device for incineration treatment.
The water spray tower and the alkali spray tower are respectively provided with a dosing tank, a metering pump is connected between the dosing tank and the spray tower, and an online pH meter is installed at the liquid inlet of the spray tower.
The dosing tank, the spray tower, the metering pump and the online pH meter are respectively and electrically connected with the PLC.
Preferably, the desorption system is communicated with a steam pipeline so as to adopt steam desorption.
Preferably, the organic matter recovery device is provided with a tubular condenser, and tap water or chilled brine is used as a refrigerant.
And air pipes communicated with the waste gas collecting pipeline are distributed in the crushing room and the hazardous waste storage room so as to collect waste gas generated in the crushing and storage processes.
The utility model has the beneficial effects that:
the organic pollutants can be adsorbed and reduced in a grading way by connecting the primary disposable activated carbon box and the secondary activated carbon tank in series; simultaneously, desorbing the activated carbon with saturated adsorption by using steam, and then condensing to obtain organic waste liquid; the collecting efficiency is high, the removing effect is good, and the problem that the unorganized waste gas is seriously diffused in the existing hazardous waste crushing and material storage process is effectively solved; meanwhile, the organic waste liquid can be used as fuel for hazardous waste incineration to be incinerated by utilizing the heat value of the organic waste liquid, so that the operation cost can be effectively reduced.
Meanwhile, the whole system runs continuously and stably and is simple to operate. Compared with a combustion method for treating organic waste gas, the system has better safety on the premise of ensuring discharge after reaching standards.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1. a crushing chamber; 2. a hazardous waste storage room; 3. a water spray tower; 4. an alkali spray tower; 5. an induced draft fan; 6. a surface cooler; 7. a disposable activated carbon box; 8. a secondary activated carbon canister; 9. a desorption system; 10. an organic matter recovery device; 11. an exhaust funnel.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
Air pipes are distributed in a crushing room 1 (a crushing machine for crushing hazardous waste is arranged in the crushing room) and a hazardous waste storage room 2 for collecting waste gas generated in the crushing and storage processes. The waste gas has complex components and large fluctuation of the emission concentration. The main characteristics of the waste gas are organic waste gas containing halogen, sulfur and nitrogen.
The collected waste gas firstly passes through a pretreatment system consisting of a water spray tower 3 and an alkali spray tower 4 to remove particulate matters, hydrophilic volatile organic matters, acidic substances and the like in the waste gas. Under the action of the drainage of the draught fan 5, the waste gas enters the surface cooler 6 and the primary activated carbon box 7 in sequence, and organic components in the waste gas are reduced primarily.
Then, the mixture enters a secondary activated carbon tank 8 for adsorption and concentration; the waste gas after adsorption and concentration treatment is purified and can be discharged at high altitude through an exhaust funnel 11;
after the second-stage activated carbon tank is saturated in adsorption, the desorption system 9 is utilized to desorb the concentrated organic waste gas in the activated carbon, the desorbed gas is recovered 10 through the organic matter recovery device, and the recovered product can be sent to a dangerous waste incineration workshop for purification treatment (the second-stage activated carbon tank is sequentially communicated with the desorption system and the organic matter recovery device).
The desorption system is communicated with a steam pipeline (the steam pipeline introduces steam from a boiler; the steam pipeline is omitted in the figure) and is provided with a condensing device (preferably a tubular condensing device, and tap water or frozen brine is adopted as a refrigerant). During desorption treatment, organic pollutants in the activated carbon are firstly separated through steam, and then condensation treatment is carried out to form organic waste liquid. The organic waste liquid can be used as a fuel for burning hazardous waste, and the operation cost can be effectively reduced by utilizing the heat value of the organic waste liquid.
In the utility model, all equipment devices including a water spray tower, an alkali spray tower, a disposable activated carbon box, a secondary activated carbon tank, a desorption system and an organic matter recovery device can be directly purchased from outside.
Claims (5)
1. A collection and treatment system for waste gases generated during hazardous waste treatment, comprising: the system comprises a crushing room (1), a hazardous waste storage room (2), a water spray tower (3), an alkali spray tower (4), an induced draft fan (5), a surface cooler (6), a disposable activated carbon box (7) and a secondary activated carbon tank (8) which are sequentially communicated through a waste gas collecting pipeline; the gas absorbed by the secondary activated carbon canister is discharged in the upper air through an exhaust funnel (11); the desorption system (9) carries out desorption treatment on the active carbon which is saturated in the secondary active carbon tank, and the organic matters after desorption treatment are input into the organic matter recovery device (10) to be incinerated.
2. The collection and treatment system for flue gases generated in hazardous waste treatment processes of claim 1, wherein: the water spray tower, alkali spray tower are provided with the dosing jar respectively, are connected the measuring pump between dosing jar and the spray tower, install online pH meter at the feed liquor department of spray tower, dosing jar, spray tower, measuring pump and online pH meter electricity connection PLC controller respectively.
3. The collection and treatment system for flue gases generated in hazardous waste treatment processes of claim 2, wherein: the desorption system is communicated with a steam pipeline to adopt steam desorption.
4. The collection and treatment system for flue gases generated in hazardous waste treatment processes of claim 3, wherein: the organic matter recovery device is provided with a tubular condensing device, and tap water or frozen brine is used as a refrigerant.
5. The collection and treatment system for flue gases generated in hazardous waste treatment processes of claim 4, wherein: and air pipes communicated with the waste gas collecting pipeline are distributed in the crushing room and the hazardous waste storage room so as to collect waste gas generated in the crushing and storage processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121801372.6U CN215388529U (en) | 2021-08-03 | 2021-08-03 | Collecting and processing system for waste gas generated in hazardous waste treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121801372.6U CN215388529U (en) | 2021-08-03 | 2021-08-03 | Collecting and processing system for waste gas generated in hazardous waste treatment process |
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| CN215388529U true CN215388529U (en) | 2022-01-04 |
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| CN202121801372.6U Active CN215388529U (en) | 2021-08-03 | 2021-08-03 | Collecting and processing system for waste gas generated in hazardous waste treatment process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115888300A (en) * | 2022-11-10 | 2023-04-04 | 陕西奥泰盛环保科技有限公司 | Prevent leaking useless storage room of danger |
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2021
- 2021-08-03 CN CN202121801372.6U patent/CN215388529U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115888300A (en) * | 2022-11-10 | 2023-04-04 | 陕西奥泰盛环保科技有限公司 | Prevent leaking useless storage room of danger |
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