Due to the world energy consumption has increased year by year, as the use of primary energy coal thoroughly combustion, releasing large amounts of sulfur dioxide and formed by the regional acid rain, on the environment has caused serious pollution, it destroys the ecological balance, causing large areas of forest product destruction, soil acidification of lakes, corrosion of buildings.

Therefore, control and reduce emissions of sulfur dioxide is a very important task. Sulfur dioxide in flue gas by spray drying method is a more and more important technology in many desulfurization technologies. The technology was studied in 1970s and has been put into commercial operation by the end of 1970s. It less investment, simple operation, in addition to high sulfur efficiency, no secondary pollution, compared to the widely used and flue gas desulfurization in wet and spray dry method desulfuration powder products with greater selectivity and development value.

Spray drying glue sulfur technique can widely used is an important prerequisite is to see whether it can solves the problem of the reasonable development of the dry after a large number of powder sulfate. Can be recycled as the absorbent, part of the dry material can be recycled, as earth fill material, into an ointment for cement retarder, made of granular artificial sand, used as a filler in building materials instead of common concrete and asphalt etc.