Heze, August 19 - New Dragon Company of Shandong Energy Xinwen Mining Group started the coal slime drying system, which reduces moisture and increase calorific value of the slime.
The first and second phase of the project was put into use in 2008 and 2011 with designed wet coal sludge treatment capacity of 316,800 tons and 712,800 tons respectively. After applying this system, the sludge treatment capacity reached 70 tons per hour, and the annual treatment of coal slurry reached 400,000 tons. After drying, the slime moisture is decreased by 7.7% and the calorific value increased by 424 kcal/kg. The price of dehydrated slime will increase by about 50 yuan per ton, and the annual sales income will increase by more than 20 million yuan.