小龙潭褐煤热压脱水工艺研究

In order to search for the suitable conditions of heat pressing, dewatering process of YunnanXiaolongtan lignite, through the orthogonal test, with the diffient lignite temperature, molding pressure, dwell time and lignite partical size, to measure the dewatering rate, the test result showed that when the lignite temperature was 220℃, the molding pressure was 6MPa, the dwell time was 40min, the partical size was 0：10, the max dewatering rat would be 57.82%, at the same time, the heat increased 80.57%, the sulfur was a slight reduction and the water absorption rat decrease approximately 8%. there will be a certain practical significance for better processing and utilization of Yunnan Xiaolongtan lignite.