Comprehensive Control Technology of H₂S in Mine

Through the comprehensive measures of strengthening examining, spraying limewater in the roadway, injecting limewater in the coal body, timely pumping tunnel water, pumping drainage and other measures, the exceeding standard of H₂S is effectively governed, a new type H₂S thinner is developed at same time, which ensures the safety production of mine and the physical and mental health of workers.