Introduction to Solid Blue Charcoal Waste Heat Boiler: Solid waste heat boiler is a waste heat boiler that directly recovers the heat of high-temperature solid particles, especially for the heat recovery of high temperature particles such as blue charcoal, electric furnace slag, and blast furnace slag produced by coal pyrolysis and upgrading. Its working principle is that high-temperature solid particles enter through the material inlet of the waste heat boiler, and slowly flow downwards by their own gravity. The heat released during the cooling process of the high-temperature particles is converted into high-pressure steam by the waste heat boiler, which is used for steam turbine power generation. The solid waste heat boiler produced by our company is a leading domestic product developed by our company and the Zhengzhou Zhongding Waste Heat Boiler Technology Research and Development Center of Xi'an Jiaotong University. All of its water-cooled heating surfaces adopt a membrane structure, which expands the heating area and improves the strength of the tube bank. The same level membrane water-cooled wall is fixed with limit plates between adjacent pipe rows to ensure the spacing between pipe rows and stable operation without deformation. The arrangement of the heating surface of the energy-saving device can preheat the cold water, and after preheating, the hot water enters the thermal deaerator for deaeration, saving the consumption of self use steam. The last stage is equipped with a cooler, which uses a large amount of low-temperature circulating water to cool high-temperature particles such as blue charcoal to below 100 ℃. The final blue charcoal does not require further spray treatment, saving energy, improving the environment, and achieving significant economic benefits.