Jiangsu Suzhou Xinkunyuan Environmental Protection Technology Co., Ltd. is an environmental protection company specializing in the manufacture, sales and operation of hazardous waste sludge dryers. In response to the further dewatering requirements of filtered sludge in the high-risk sludge disposal process, the sludge dryer with good energy-saving effect has been developed, which reflects the recycling of energy, the dried sludge is environmentally friendly and non-polluting, and the heat pump heating technology has been successfully applied.