The vertical spiral coil waste heat boiler, as a waste heat recovery and reuse equipment, belongs to the fire-tube waste heat boiler. It can be used in extremely harsh high-temperature and high-pressure working conditions, such as in residue oil POX gasification units, where the process gas temperature inside the waste heat boiler tubes reaches up to 1300°C, the pressure is 6.5MPa, and it contains solid metal particles that cause erosion to the tube walls. At the same time, the shell side produces 10.5MPa high-pressure saturated steam as a byproduct, making it a core equipment in POX units. It has now been successfully applied in projects such as coke oven gas to methanol, coke oven gas to ethylene glycol, and blast furnace gas to ethylene glycol. The vertical spiral coil waste heat boiler manufactured by the company is applied in the waste heat boiler of Hami Guanghui Environmental Protection Technology Co., Ltd.'s blast furnace gas to 400,000 tons/year ethylene glycol project, with a single unit processing capacity of 20,000Nm³/h, an equipment diameter of 43,200mm, and a weight of 220 tons. It is currently the waste heat boiler of this type with the largest single-unit processing capacity and the largest specifications in the world.
