Coil pipe pressurized waste gas absorption processor

Abstract

According to the technical scheme, the coil pipe pressurization waste gas absorption processor is characterized in that the coil pipe pressurization waste gas absorption processor comprises a volume circulating pump, a circulating pump, a coil pipe pressurization absorber, a gas-water separator and a connecting pipeline, and the gas inlet end of the volume circulating pump is connected with a circulating water pipe and a waste gas pipeline; the exhaust end of the volume circulating pump is connected with the circulating pump and the coil pipe pressurization absorber through the connecting pipeline, and the other end of the coil pipe pressurization absorber is connected with an inlet of the gas-water separator through the connecting pipeline. The other end of the volume circulating pump is connected with an outlet in the bottom of the gas-water separator through a circulating pipeline, and the interior of the coil pipe pressurization absorber is used for scattering introduced waste gas to be treated. When a waste gas and water mixture passes through the nozzle in the coil pipe pressurization absorber during waste gas treatment, the waste gas is fully sprayed and dispersed, so that the waste gas treatment effect can be improved, and the device has the advantages of being low in input cost and operation cost, more environmentally friendly and safer.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas absorption processors, and in particular to a coil pressurized waste gas absorption processor. Background Art

[0002] At present, there are the following ways to treat waste gas: 1. Acid-base spray waste gas treatment. This treatment method has a small gas-liquid contact area and poor treatment effect, and generally absorbs 10-30%. It requires a large amount of water and acid and alkali, and the outlet VOC is high, which cannot meet the emission standards; 2. Activated carbon adsorption treatment, which has an organic adsorption effect of 30-50%, requires steam for regeneration, and will produce solid waste after failure, and the equipment investment is high. The outlet also needs to be treated by RTO; 3. Macroporous resin adsorption treatment method, which has an organic adsorption effect of 60-90%, requires steam for regeneration, and will produce solid waste after failure, and the equipment investment is high. The outlet also needs to be treated by RTO; 4. CTO catalytic oxidation method, its disadvantages are high power consumption, unstable outlet, and can only treat some easy-to-treat waste gas, which will fail due to the influence of chloride ions. The equipment investment is large, and the cost of operating consumables and catalysts is high; 6. RTO incineration treatment, which requires large energy consumption, stable outlet, and is affected by chloride ions and nitrogen to corrode the equipment, and the outlet also needs to remove chlorine and nitrogen. Due to the use of open flames, high safety requirements, it is easy to cause fire risks. In view of the above-mentioned treatment methods, there is an urgent need for an environmentally friendly and efficient exhaust gas processor. Summary of the invention

[0003] In view of the existing technical problems, the purpose of the present invention is to provide a coil pressurized exhaust gas absorption processor, which can improve the exhaust gas treatment effect, has low equipment investment cost, low operating cost, and has the advantages of being more environmentally friendly and safe to use.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] A coil pressurized waste gas absorption processor comprises a volumetric circulation pump, a circulating pump, a coil pressurized absorber, a gas-water separator and a connecting pipe, wherein the air inlet end of the volumetric circulation pump is connected to a circulating water pipe and a waste gas pipe, the exhaust end of the volumetric circulation pump is connected to the circulating pump and the coil pressurized absorber via the connecting pipe, the other end of the coil pressurized absorber is connected to the inlet of the gas-water separator via the connecting pipe, the other end of the volumetric circulation pump is connected to the outlet at the bottom of the gas-water separator via the circulating pipe, and the interior of the coil pressurized absorber is used to disperse the introduced waste gas to be treated.

[0006] Preferably, the coil pressurized absorber includes a tank body, a coil arranged inside the tank body, and a nozzle. The coil is connected to a plurality of nozzles along its length, and the end of the nozzle with a smaller diameter is higher than the end of the nozzle with a larger diameter. The end of the coil is connected to the pressurizing device to spray out a mixture of pressurized gas and liquid.

[0007] Preferably, the coil is arranged in the tank body in a spiral shape, and its central axis coincides with the central axis of the tank body.

[0008] Preferably, the gas pressure inside the coil is 1-3 bar.

[0009] Preferably, the gas-water separator comprises a tank body, a filler arranged inside the tank body, and an ultrasonic generator. The ultrasonic generator is arranged on the tank body and is used to generate oscillation and vibration to disperse the particles of the exhaust gas into tiny particles.

[0010] In summary, the present invention has the following beneficial effects:

[0011] By fully spraying inside the coil pressurized absorber, the volume of a single bubble is reduced, the gas-liquid two-phase contact area is increased, and the waste gas treatment effect is improved. It can be used to treat any polluted waste gas and wastewater with a boiling point higher than normal temperature. The process does not require the addition of chemicals. The water consumption of the gas-water separator is less than that of an ordinary spray tower, which is more environmentally friendly and safe. It only requires the use of a coil pressurizer to introduce pressurized gas. Overall, the equipment has low investment cost, low operating cost, and is more environmentally friendly and safe to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the coil pressurized waste gas absorption processor of the present invention;

[0013] Figure numerals: 1. Volume circulation pump; 2. Coil pressurized absorber; 21. Tank body; 22. Coil; 23. Nozzle; 3. Gas-water separator; 4. Connecting pipe; 5. Circulating water pipe; 6. Exhaust gas pipe; 7. Circulating pipe. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0015] See also Figure 1In a typical embodiment 1 of the application, a coil pressurized waste gas absorption processor is provided, including a volumetric circulation pump 1, a coil pressurized absorber 2, an air-water separator 3 and a connecting pipe 4, the air inlet end of the volumetric circulation pump 1 is connected to a circulating water pipe 5 and an exhaust gas pipe 6, the outlet end of the volumetric circulation pump 1 is connected to the inlet of the coil pressurized absorber 2 through the connecting pipe 4, the outlet end of the coil pressurized absorber 2 is connected to the inlet of the air-water separator 3 through the connecting pipe 4, the other end of the volumetric circulation pump 1 is connected to the outlet at the bottom of the air-water separator 3 through the circulating pipe 7, specifically, one end of the circulating pipe 7 is connected to the air-water separator 3, and the other end thereof is connected to the circulating water pipe 5, and the inside of the coil pressurized absorber 2 is used to disperse the introduced exhaust gas to be treated.

[0016] Specifically, the coil pressurized absorber 2 includes a tank body 21, a coil 22 arranged inside the tank body 21, and a nozzle 23. The coil 22 is connected with a plurality of nozzles 23 at intervals along its length. The end of the nozzle 23 with a smaller diameter is higher than the end of the nozzle 23 with a larger diameter. The end of the coil 22 is connected to an external pressurizing device. The exhaust gas passing through the nozzle 23 and the coil 22 is dispersed in the coil 22, and is transported to the gas-water separator 3 after being pressurized and absorbed by the spiral long-distance coil 22.

[0017] In order to improve the reaction time of the coil 22, the coil 22 is spirally arranged in the tank 21, and its central axis coincides with the central axis of the tank 21. The gas pressure inside the coil 22 is 0.1-1 bar.

[0018] The gas-water separator 3 comprises a tower body, a filler arranged inside the tower body and an ultrasonic generator, wherein the ultrasonic generator is arranged on the tower body and is used to disperse the particles of the exhaust gas into tiny particles. Mixer.

[0019] Specifically, the high-concentration waste gas generated by the factory is injected into the coil 22 in the coil pressure absorber 2 through volume. There is pressure inside the coil 22. The nozzle is provided in the coil 22. The waste gas is pressurized in the coil 22 and sprayed and dispersed. Then, the nozzle 23 is used to gradually transport the waste gas in the coil 22. The coil 22 and the nozzle 23 play the role of dispersing the gas. Any saturated gas will precipitate after being pressurized. The amount of precipitation is proportional to the pressure. For example, if the pressure is 2 bar, 75% of the saturated pollutants will precipitate. After being treated by the coil pressure gas-water separator, the waste gas and water enter the gas-water separator 3. The gas-water separator 3 has an ultrasonic generator and fillers to disperse the waste gas into tiny particles, increase the contact area between water and waste gas, and improve the gas absorption rate. The waste gas is discharged after passing through the gas-water separator 3, and the waste water containing pollutants is discharged through the bottom overflow pipe.

[0020] In this embodiment, the device is used to connect the waste gas generated by the distillation kettle, the amination kettle and other equipment to treat the waste gas, and the treated waste liquid at the outlet is tested. The testing unit is Purolite (China) Co., Ltd., and the following data are obtained:

[0021]

[0022] The above test data verify that the waste gas absorption processor of the present invention has a better effect in treating waste gas. According to the ion exchange resin chelating kettle test, the intake VOC containing ethylene dichloride is 10000PPM, and the outlet gas is 0PPM, which is better than RTO. It is not affected by chlorine and nitrogen, and there is no need to add other agents. It only needs to use a coil pressurizer to pass high-pressure water.

[0023] The absorption rate of the present invention for treating organic waste gases such as toluene, dichloroethane, and formaldehyde is above 80%. It can be used to treat any polluted waste gas with a boiling point higher than room temperature. No reagents need to be added during the process. The water consumption of the gas-water separator is less than that of an ordinary spray tower, which is more environmentally friendly and safe.

[0024] When the waste gas and water pass through the coil pressurized absorber 2, the waste gas will be dispersed into microbubbles by the injection heads. The contact area between water and waste gas is greatly increased. Under pressure conditions, substances that are slightly soluble in water can be easily dissolved in water. For substances that are insoluble in water, under pressure conditions, they can also precipitate when the saturated vapor pressure is reached. The specific amount of precipitation is related to the inlet concentration. The higher the concentration, the more precipitation, which is related to the pipeline pressure. The higher the pressure, the higher the precipitation rate. On the whole, the present invention has the advantages of low equipment investment cost and low operating cost, and is more environmentally friendly and safe to use.

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A coil pressurized waste gas absorption processor, characterized in that: It includes a volume circulation pump, a coil pressurized absorber, an air-water separator and a connecting pipe. The air inlet end of the volume circulation pump is connected to a circulating water pipe and a waste gas pipe, the exhaust end of the volume circulation pump is connected to the coil pressurized absorber through the connecting pipe, the other end of the coil pressurized absorber is connected to the inlet of the air-water separator through another connecting pipe, the other end of the volume circulation pump is connected to the outlet at the bottom of the air-water separator through a circulating pipe, and the interior of the coil pressurized absorber is used to disperse the introduced waste gas to be treated.

2. The coil pressurized waste gas absorption processor according to claim 1, characterized in that: The coil pressurized absorber includes a tank body, a coil arranged inside the tank body, and a nozzle. The coil is connected to a plurality of nozzles along its length, and the end of the nozzle with a smaller diameter is higher than the end of the nozzle with a larger diameter. The end of the coil is connected to the pressurizing device to spray out a mixed phase of pressurized gas and liquid.

3. The coil pressurized waste gas absorption processor according to claim 2, characterized in that: The coil is arranged in the tank body in a spiral shape, and its central axis coincides with the central axis of the tank body.

4. The coil pressurized waste gas absorption processor according to claim 2, characterized in that: The gas pressure inside the coil is 1-3 bar.

5. The coil pressurized waste gas absorption processor according to claim 1, characterized in that: The gas-water separator comprises a tank body, a filler arranged inside the tank body and an ultrasonic generator. The ultrasonic generator is arranged on the tank body and is used to generate oscillation and vibration.

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