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

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.

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.

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.