Rotary kiln denitration and dust removal integrated device

Abstract

The invention discloses a rotary kiln denitration and dust removal integrated device. The rotary kiln denitration and dust removal integrated device comprises a kiln tail smoke chamber, a rotary cylinder and a coal injection pipe; a feed inlet is formed in the top of the kiln tail smoke chamber; a feed pipe is arranged at an outlet of the feed inlet; and the right side surface of the kiln tail smoke chamber is fixedly connected with the rotary cylinder. According to the invention, the bottom of the coal injection pipe is provided with an air and gas mixing duct, a combustion-supporting air duct brings oxygen into a vortex duct, introduced gas is in a vortex shape, and a hollow air duct connected to the right wall of the combustion-supporting air duct is matched with an upper coal air duct,the air blown by the central air duct rotates at the tail end of the central air duct due to the different flow directions of the gas introduced by the two ducts, and is finally guided by an inclinedblock and mixed with the gas introduced by the coal air duct, and a mixture finally flows into the air and gas mixing duct to contact with vortex air, so that coal and the air are fully mixed, the combustion is more sufficient, and the effect of stabilizing the flow is achieved.

Description

technical field [0001] The invention relates to the technical field of integrated denitrification and dust removal of a rotary kiln, in particular to an integrated device of denitrification and dust removal for a rotary kiln. Background technique [0002] With the continuous development of my country's economy and society, the degree of industrialization has gradually deepened. Among them, the glass industry has developed rapidly since the 1990s, and the glass output has ranked first in the world. In recent years, the frequent occurrence of large-scale smog weather in my country has become one of the obstacles restricting the sustainable development of my country's economy. Among the air pollution sources, the smoke pollutants emitted by the glass industry also account for a certain proportion, and the treatment work takes a relatively long time. Industries such as electric power and metallurgy are late, and governance is difficult. Although compared with coal power, steel an...

AI Technical Summary

Problems solved by technology

However, the denitrification of lime rotary kiln is a complex system engineering, and the operating efficiency and cost directly affect the production stability and economic benefits of the enterprise

Starting from the whole process of production, it is in line with the specific development direction of the country to adopt various possibilities to initially reduce nitrogen oxide emissions and reduce the cost of denitrification. However, the denitrification and dust reduction equipment in the market has the following shortcomings and has not been implemented at the beginning. Most of the denitrification and dust reduction are at the end of the process. A large number of catalysts are used to treat nitrogen oxides. Although the denitrification effect of this type can reach about 90%, the use time of the catalyst is limited. This type of equipment covers a large area and has a good denitrification effect, but wastewater treatment will cause secondary pollution

Images