Sulfur-fixation, denitration and coke-cleaning additive for coal-fired boiler

Abstract

The invention discloses a coal-fired boiler sulfur-fixing, denitrification and coke-clearing additive, which is composed of the following raw materials in parts by weight: 8-20 parts of nano-titanium dioxide; 20-50 parts of natural marble; 1-6 parts of rare earth components; 20-20 parts of nitrate 30 parts; 3-10 parts of plant ash; 5-10 parts of activated carbon; each raw material in said parts by weight is stirred evenly and added to coal powder for further mixing. The invention can effectively reduce coal consumption, reduce sulfur dioxide emission rate and nitrogen oxide emission, and has coke cleaning effect, realize effective sulfur fixation, denitrification and coke cleaning, stable performance, high coal saving rate, high emission reduction rate, simple use and convenient application Advantages, what is more characteristic is that it overcomes the defects of traditional pulverized coal boilers relying on external exhaust pipes to implement flue gas desulfurization and denitrification equipment with large investment and poor results. The invention is combined with the traditional flue gas wet desulfurization and denitrification process, can effectively reduce the desulfurization and denitrification cost of enterprises, and fully complies with the national air pollution emission standards.

Description

technical field [0001] The invention relates to the technical field of sulfur-fixing, denitrification, and coke-cleaning for coal-fired boilers, and specifically refers to a sulfur-fixing, denitrification, and coke-cleaning additive for coal-fired boilers. Background technique [0002] China is a big energy-consuming country, and coal is the main energy in China, accounting for about 70% of the primary energy structure. In the future, with the increase in the proportion of new energy sources, the proportion of coal in the primary energy structure may drop significantly. But for a long time to come, the status of coal as China's main energy source will not change. As of the end of 2010, the country had 1,341.2 billion tons of proven reserves of coal. In 2010, most of the increase in world coal production and consumption came from China. As the economy continues to develop, China's coal consumption will continue to increase. Especially according to the current situation of...

AI Technical Summary

Problems solved by technology

The common situation is unstable coal saving rate, inconvenient use, poor desulfurization and denitrification effect or high equipment cost, long investment return period, etc.