Energy-saving type tail gas pretreatment system for field of steel ingot refining

Abstract

The invention discloses an energy-saving type tail gas pretreatment system for the field of steel ingot refining. The energy-saving type tail gas pretreatment system comprises a coarse filtering tank,wherein a control unit is fixedly arranged on the outer surface of one side of the coarse filtering tank; in addition, an air inlet is formed in one side of the bottom end of the coarse filtering tank; dust filtering cotton is arranged inside the coarse filtering tank; besides, a first air duct is fixedly connected to the outer surface of the upper end of the coarse filtering tank; a first treatment chamber is fixedly connected to the outer surface of one end of the first air duct; in addition, an exhaust fan is arranged on the outer surface of the lower end of the first treatment chamber; anammonia chamber is fixedly connected to the outer surface of the lower end of the exhaust fan. The energy-saving type tail gas pretreatment system for the field of steel ingot refining, disclosed bythe invention is provided with porous emission columns, a hollow disk and a photovoltaic cell panel; ammonia can be sufficiently emitted to the first treatment chamber, reaction speed is increased, the ammonia can be sufficiently mixed with a phosphate solution, light energy can be utilized for supplying power to the system, energy saving and environment friendliness are realized, and a better useprospect is brought.

Description

technical field [0001] The invention relates to the field of tail gas treatment, in particular to a tail gas pretreatment system in the field of energy-saving steel ingot refining. Background technique [0002] The waste gas produced during the refining process of steel ingots is mainly the waste gas generated when the fuel is burned to heat the steel. The waste gas contains a large amount of dust, sulfide and nitrogen oxides, which seriously pollutes the environment. Therefore, it is necessary to treat the waste gas generated during the refining process of steel ingots. In order to reduce the degree of pollution to the environment; the existing tail gas pretreatment system in the field of steel ingot refining has certain disadvantages in use. First, in the process of removing nitrogen oxides in the exhaust gas, the gap between ammonia and nitrogen oxides The reaction speed is relatively slow, which affects the waste gas treatment speed and is not conducive to people's use. ...

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Problems solved by technology

[0002] The waste gas generated during the refining process of steel ingots is mainly the waste gas generated when the fuel is burned to heat the steel. The waste gas contains a large amount of dust, sulfide and nitrogen oxides, which seriously pollutes the environment. Therefore, it is necessary to treat the waste gas generated during the refining process of steel ingots. In order to reduce the degree of pollution to the environment; the existing tail gas pretreatment system in the field of steel ingot refining has certain disadvantages in use. First, in the process of removing nitrogen oxides in the exhaust gas, the gap between ammonia and nitrogen oxides The reaction speed is relatively slow, which affects the waste gas treatment speed and is not conducive to people's use. Secondly, the contact between the sulfide in the waste gas and the strong base and weak acid salt is not thorough, and the mixing is not sufficient, resulting in a decrease in the absorption rate of sulfide in the waste gas. It cannot meet the needs of actual use. In addition, it cannot use solar energy to generate electricity, wasting a lot of resources, and the effect of energy saving and environmental protection is poor, which has brought a certain impact on people's use process. Therefore, we propose an energy-saving tail gas pre- processing system

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