Automatic denitration control system

Abstract

The invention relates to an automatic denitration control system. The system comprises a control unit, a water storage tank, a liquid tank, a mixing tank and a denitration pump, wherein the control unit controls other components to remove nitric oxide in flue gas; the water storage tank is connected with the control unit and used for storing water; the liquid tank is arranged below the water storage tank, connected with the control unit and used for storing a liquid; the mixing tank is connected with the liquid tank and the water storage tank and used for storing and mixing the liquid and water; the denitration pump is arranged at an output end of the mixing tank and used for outputting a mixed liquid. The corresponding quantity of a denitration agent is prepared through detection of concentration of nitric oxide in flue gas in denitration equipment, the quantity of the denitration agent is finely adjusted through matching of water and liquid concentration, the concentration of the denitration agent is accurately controlled through adjustment of the power of the denitration pump, so that automatic control is realized, time and labor are saved, accurate denitration can be realized,and energy saving and consumption reduction purposes are achieved.

Description

technical field [0001] The invention relates to the technical field of denitrification automation, in particular to a denitrification automatic control system. Background technique [0002] Industrial waste gas contains a large amount of sulfur dioxide and nitrogen oxides. Desulfurization is to remove sulfur dioxide in the flue gas, and denitrification is mainly to remove nitrogen oxides in the flue gas. These two substances will form acid rain when they enter the atmosphere. The harm of acid rain to human beings Very large, coal-fueled flue gas contains these substances, especially in thermal power plants. Now when building power plants, desulfurization and denitrification equipment must be built at the same time. Most of the desulfurization equipment using wet smoke method only makes industrial flue gas and water fully in the desulfurization tower. Exclude after mixing, let the lime or limestone emulsion absorb sulfur dioxide in the flue gas, and generate calcium sulfite h...

AI Technical Summary

Problems solved by technology

[0007] For this reason, the present invention provides a denitrification automatic control system to overcome the problem that the denitrification agent cannot be quantitatively controlled in the prior art

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