Power plant desulphurization

Introduction

Power plant emissions of sulfur dioxide are the main way: coal washing, clean coal combustion technology and flue gas desulfurization. Coal washing and coal currently only remove part of inorganic sulfur, organic sulfur in the coal is no economically viable removal techniques. Although clean coal combustion technologies is a mature commercial technology, but stand-alone capacity is not large; and a big investment, high technical requirements, it is difficult in a short time in the country in large scale use. Flue Gas Desulfurizationafter nearly 30 years of development has become a mature and stable technology, flue gas desulfurization equipment for various types of coal-fired power plant in the world has been widely used.

Recommended Products

MTW (600-45μm)

MTM (600-45μm)

MRN Grinding Mill

LM (600-45μm)

Power plant desulphurization grinding process

1. Beneficiation, crushing limestone, grind 200-300 mesh powder;
2.The limestone powder slurried with water pumped into theas an absorbent in contact with the flue gas sufficiently mixed;
3.Flue gas sulfur dioxide and calcium carbonate slurry and an oxidation reaction bubbled from the bottom of the tower air. Calcium sulfate, calcium sulfate saturation after a certain, Gypsum crystals form. After exiting the absorber. Gypsum slurry was concentrated, dewatered to a moisture content of less than 10%;
4.By conveying to the silo to dehydrated gypsum stack, flue gas desulfurization through mist droplet removed, and then after a heat exchanger to heat up the chimney into the atmosphere;