Ministry of Higher and Secondary Special Education of the Republic of Uzbekistan Almalyk branch of Tashkent State Technical University named after Islam Karimov Faculty of Energy and Mechanical Engineering Department of Chemical Technology

Fluidized bed furnace

Let us consider the firing process in a fluidized bed furnace in more detail using chemistry, thermodynamics, and kinetics.

• Let us consider the firing process in a fluidized bed furnace in more detail using chemistry, thermodynamics, and kinetics.
• The effect of firing conditions on the process performance
• In the firing process, temperature plays a significant role. Temperature can vary from 850 to 980 0C. At low temperatures, the firing process is slow and incomplete; at high temperatures, the material is melted and firing is not of high quality. To control the temperature, water coolers are used (cooling), receiving steam, and a certain temperature is maintained by the loading speed. So that the concentrate does not grow larger during firing, it is necessary to maintain a temperature of not more than 970 0C. A moderate content of soluble sulfate sulfur is achieved at a temperature of 950-970 0C. With increasing temperature, at the same time, there is a need to resolve the issue of removal and utilization of excess heat from the BL zone. At low temperatures, firing of sulphide materials promotes the formation of sulphates both because the dissociation pressure at these temperatures is lower and because the pressure of PSO3 in the furnace gases is higher.