Chlorine waste gas treatment and chlorine leakage emergency treatment dual-purpose neutralizing tower

A technology for waste gas treatment and emergency treatment, which is applied in the direction of gas treatment, chemical instruments and methods, membrane technology, etc., and can solve problems such as expensive

Inactive Publication Date: 2018-08-31
成都奕州环保科技有限公司
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AI-Extracted Technical Summary

Problems solved by technology

At present, the main adsorption agent for chlorine gas tail gas treatment, the agent needs to judge whether it ...
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Abstract

The invention discloses a chlorine waste gas treatment and chlorine leakage emergency treatment dual-purpose neutralizing tower which comprises a water tower. A breathable acid-resistant first buffering layer is installed in the middle in the water tower. A first spraying nozzle is arranged on the top of the water tower and connected with a water pump. The inlet of the water pump is a water inlet.The bottom of the water tower is connected with a waste liquid pond and a waste gas inlet. The top of the water tower is connected with an exhaust fan. A second stop valve is installed between the water tower and the waste gas inlet. The neutralizing tower further comprises an alkali liquor tower. A breathable acid-resistant alkali-resistant second buffering layer is installed in the middle in the alkali liquor tower. A second spraying nozzle is arranged on the top of the alkali liquor tower and connected with an alkali liquor pump which is connected with an alkali liquor pond. The bottom ofthe alkali liquor tower is connected with the waste liquid pond. The top of the alkali liquor tower is connected with the lower side of the first buffering layer of the water tower. A first stop valveis installed between the alkali liquor tower and the water tower. The lower side of the second buffering layer of the alkali liquor tower is connected with the waste gas inlet. The neutralizing towerhas the advantages of being capable of processing tail gas generated in daily operation and also capable of being used for emergency leakage treatment.

Application Domain

Gas treatmentDispersed particle separation

Technology Topic

Spray nozzleExhaust gas +9

Image

  • Chlorine waste gas treatment and chlorine leakage emergency treatment dual-purpose neutralizing tower

Examples

  • Experimental program(3)

Example Embodiment

Specific embodiment one:
[0016] like figure 1 As shown, the present invention provides a dual-purpose neutralization tower for chlorine waste gas treatment and chlorine leakage emergency treatment, which includes a water tower 5, a breathable and acid-resistant first buffer layer 4 is installed in the middle of the water tower 5, and the top of the water tower 5 is equipped with The first nozzle 6, the first nozzle 6 is connected to the water pump 10, the inlet of the water pump 10 is the water inlet 9; the bottom of the water tower 5 is connected to the waste liquid pool 17 and the waste gas inlet 11, and the top of the water tower 5 is connected to the exhaust fan 8; between the water tower 5 and the waste gas inlet 11 A second shut-off valve 12 is installed; the neutralization tower also includes a lye tower, a breathable, acid-resistant and alkali-resistant second buffer layer 14 is installed in the middle of the lye tower 1, and a second nozzle 2 is installed on the top of the lye tower 1 , the second nozzle 2 is connected to the lye pump 16, and the lye pump 16 is connected to the lye pool 15; the bottom of the lye tower 1 is connected to the waste liquid pool 17, and the top of the lye tower 1 is connected to the bottom of the first buffer layer 4 of the water tower 5; A first shut-off valve 3 is installed between the tower 1 and the water tower 5, and the waste gas inlet 11 is connected under the second buffer layer 14 of the lye tower 1 . A third stop valve 13 is installed between the lye tower 1 and the waste gas inlet 11. The daily operation only handles the chlorine waste gas, and the water tower 5 is enough. The third stop valve 13 is needed to prevent the waste gas from entering the lye tower 1. The waste liquid pool 17 is filled with NaOH solution, and the waste liquid pool 17 is closed to prevent the waste liquid from evaporating and people from falling into the waste liquid pool 17. The first nozzle 6 and the second nozzle 2 are atomizing nozzles, which increase the contact surface with the exhaust gas.
[0017] It should be pointed out that in daily operation, water tower 5 constantly needs water source to spray and absorb chlorine tail gas, so the water in the waste liquid pool will be continuously pumped into a special treatment device for treatment, and the waste water will return to the water source, reducing the loss of water source. pollution and waste.

Example Embodiment

Specific embodiment two:
[0018] On the basis of specific embodiment one, it can be improved that an adsorption tail gas treatment device 7 is also installed at the outlet of the exhaust fan 8, and the lye tower 1 and the water tower 5 handle most of the tail gas, but because chlorine is highly toxic Substances also need double protection to completely reduce the concentration of chlorine tail gas below the safe concentration. The rear end of the tail gas treatment device 7 is also provided with a chlorine gas detector, which detects the concentration of chlorine gas in the treated tail gas in real time, and if it exceeds, an alarm will be issued to check whether there is an equipment failure.

Example Embodiment

Specific embodiment three:
[0019] On the basis of the first embodiment, it can be improved that the first shut-off valve 3 , the second shut-off valve 12 and the third shut-off valve 13 are pneumatic or electric valves. After the second cut-off valve 12 is opened, the first cut-off valve 3 and the third cut-off valve 13 are closed in linkage, and after the second cut-off valve 12 is closed, the first cut-off valve 3 and the third cut-off valve 13 are opened in linkage. After the improvement, remote switching can be realized, or the opening and closing of the valve can be linked by the gas detector.
[0020] Working principle: exhaust fan 8 is always on, close the first stop valve 3 and third stop valve 13 in daily operation, open the second stop valve 12, the exhaust gas in daily operation can be absorbed through the water tower 5; open in case of emergency leakage The first shut-off valve 3 and the third shut-off valve 13 close the second shut-off valve 12, and if the chlorine gas content is high, it is first neutralized by the lye tower and then by the water tower.
[0021] It can be concluded that the neutralization tower can handle the tail gas produced in daily operation, and can also be used for emergency leakage treatment.

PUM

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