The unit, for which the GE technology is adopted, was put into operation in April 2007 and September 2009, supplying materials to 7 gasification furnaces, 5 for operation and 2 for standby, and consuming tons of coal per year, and the gas produced is sent to the low-temperature methanol washing unit after the conversion; the ash water is washed and recycled by the slag water treatment system, and the coarse slag is transported out by the contractor for treatment.