How to review the capacity of desulphurization equipment,the dimensions and parameters of the absorb tower,the heating area and heating temperature difference of GGH and the capacities and power of circulation fluid pump and oxidation fan,etc.

Common breakdowns and correction of BTSB-CNM sulphur dioxide blower;

Study on the law of coal layer safe extraction in efflorescent oxygenized belts;

Regulars and characteristics of overlying strata in mining efflorescent oxygenized belts's coal seams;

Based on testing data in worksite and engineering practice, the strata damage movement characteristics, rock properties of weathered zone and qualitative and quantitative analysis of the mechanism of coal layer safety extraction in efflorescent oxygenized belts were discussed.

Strata behavior and control of inclined fully mechanized longwall mining face in oxidized zone of seam;

However, many problems of coal mining goaf (small coal pit and age-old sap), underneath burning area, wind oxidized zone, faultage and lava cave-in post were restricted normal production of coal mining in different degrees and moreover could bring dangerous problems.