This unit is composed of a belt conveyor, a spiral blanching machine, and a cooling tank. It is practical, automatic feeding and discharging, high efficiency, small footprint, energy-saving, water saving, safe and reliable. The inner liner is made into a split body, which is easy to disassemble and remove water pollution. Suitable for pre cooking and killing carrots, cabbage, cauliflower, green beans, garlic sprouts, mushrooms, chicken, duck, fish, and other materials.