Energy-saving and emission-reducing exhaust gas desulfurization tower

Abstract

The invention discloses an energy-saving and emission-reducing exhaust gas desulfurization tower. The energy-saving and emission-reducing exhaust gas desulfurization tower comprises a tower body, a demisting tank and a waste liquid treatment tank, wherein the demisting tank is fixedly connected to the upper end of the tower body, the waste liquid treatment tank is fixedly connected to the lower end of the tower body, a gas inlet pipe is arranged on the side wall close to the lower end of the tower body, a liquid inlet pipe is arranged on the side wall close to the upper end of the tower body,one end of the liquid inlet pipe penetrates through the tower body and extends inside the tower body, a spraying device communicated with the liquid inlet pipe is arranged inside the tower body, a gasdispersing mechanism is rotatably connected with the internal bottom of the tower body, the upper end of the gas dispersing mechanism is fixedly connected with the spraying device, the lower end of the tower body is fixedly connected with a rotating motor used for driving the gas dispersing mechanism, and a gas outlet is formed in the upper end of the demisting tank. According to the energy-saving and emission-reducing exhaust gas desulfurization tower, the structure is compact, the thorough mixing between exhaust gases and a desulfurization solution is improved, and thus, the desulfurizationeffect of the exhaust gases is improved; desulfurized waste liquid is further treated, so that the discharge of harmful liquid is avoided.

Description

technical field [0001] The invention relates to the technical field of waste gas desulfurization, in particular to an energy-saving and emission-reducing waste gas desulfurization tower. Background technique [0002] At present, industrial coal is used in the production process of high-energy-consuming and high-pollution industries such as petrochemical, nonferrous metals, and steel. The waste gas discharged after coal combustion contains a large amount of sulfide, and direct discharge will cause serious air pollution. Usually, The exhaust gas needs to be desulfurized. The commonly used desulfurization agent is acid liquid. The industrial waste gas is discharged into the desulfurization tower and sprayed. The sulfide reacts with the acid liquid to form gypsum, so as to realize the treatment of flue gas and reuse the by-products. [0003] However, in traditional desulfurization towers, the desulfurizer spraying devices are generally set in a fixed connection. The structure o...

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Problems solved by technology

[0003] However, in traditional desulfurization towers, the desulfurizer spraying devices are generally set to be fixedly connected. The structure of the fixed connection often makes it impossible to spray the desulfurizer in the largest range, and the exhaust gas is introduced into the desulfurizer to be in contact with the desulfurizer. Contact, the exhaust gas cannot be evenly distributed and diffused, resulting in insufficient contact between the exhaust gas and the desulfurizer, resulting in poor desulfurization effect and poor exhaust gas treatment effect

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