Kiln tail low-ammonia combustion equipment and implementation method thereof

Abstract

The invention discloses kiln tail low-ammonia combustion equipment. The kiln tail low-ammonia combustion equipment comprises a kiln, wherein a smoke exhaust pipe is fixed to the top of the kiln, a kiln body is fixed above the interior of the kiln, the kiln tail is arranged below the kiln body, the kiln tail is fixedly connected with the kiln, a base is fixed to the bottom of the kiln, a main coalsupply pipe is fixed to the outer side wall of the base, a feeding pipe is arranged on the outer side wall of the kiln, and the end, penetrating through the kiln, of the feeding pipe is fixedly connected with the kiln. The invention further discloses an implementation method of the kiln tail low-ammonia combustion equipment. The kiln tail low-ammonia combustion equipment is formed by combining coal spray pipes, gate valves and tee joints, and is small in investment, quick to transform, good in effects and stable and reliable to operate; and combustors change combustion from an original high-oxygen area to a low-oxygen area, so that coal is decomposed into carbon monoxide and other substances, the substances such as carbon monoxide as reducing agents are subjected to reduction reaction withNOx in the kiln, and the use amount of ammonia water is saved by 30%-50% on the original basis after use.

Description

technical field [0001] The invention belongs to the technical field of kiln equipment, and in particular relates to a kiln tail low-ammonia combustion equipment and a realization method thereof. Background technique [0002] The NOx mainly emitted by the kiln is easily oxidized into the air to form relatively stable NO2, which increases the content of nitrogen oxides in the atmosphere. NOx not only directly causes primary pollution to the atmosphere, but also endangers the respiratory system of animals and destroys the stratospheric ozone layer. , is an important substance in the formation of photochemical smog and acid rain, and is also one of the main greenhouse gases, which has great harm to the natural environment. [0003] The original reduction of nitrogen oxides at the kiln tail uses ammonia water as a reducing agent. When the content of nitrogen oxides in the kiln is too high, the amount of ammonia water is too high, which directly causes the problem of rising produc...

AI Technical Summary

Problems solved by technology

[0003] The original reduction of nitrogen oxides at the kiln tail uses ammonia water as a reducing agent. When the content of nitrogen oxides in the kiln is too high, the amount of ammonia water is too high, which directly causes the problem of rising production costs. A large amount of ammonia consumption and high production cost equipment and methods

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