The characteristics, or highlights, of a sludge project may be many, such as wide adaptability to sludge moisture content, low energy consumption, low noise, low odor, high sludge dryness, stable system, etc. Of these characteristics, security is 1, the others are all 0, only 1 exists, and the following 0 is meaningful. Xinkunyuan Environmental Protection is a professional R&D and manufacturing low-temperature heat pump sludge drying equipment and