Share the diameter and capacity of the boiling furnace for drying tailings
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Dear teachers, please share the diameter and capacity of the fluidized bed furnaces used for burning tailings. Exchange ideas with each other and improve together. Our company’s boiling furnace has a diameter of 7,600 and a capacity of 200,000 tons. Problem: Cold ash is produced frequently, clogging the air cap.
That 7600 mm you mentioned is the upper diameter, right? It’s necessary to consider the diameter of the fluidized bed; the large particles of cold ash lead to poor fluidization conditions
It mainly depends on the particle size of the raw material. For 200,000 tons, if the raw material is crushed ore in pellet form, a boiling bed with a capacity of 4,800 should be used; if it’s fine sulfur concentrate ore, then a capacity of around 6,000 would be appropriate
The fluidized bed has a diameter of 7600; it is used for burning tailings, and the ore fed into the furnace contains 35% sulfur. Number of wind caps: 2705, with small holes of 6 – diameter 3.9.
The data is more or less the same. The reason for the blockage of the wind cap is the mismatch between the air volume and the material inside the furnace, as well as the particle size and wind speed
The relationship between the particles of the material fed into the furnace, its moisture content, and its weight – the most important factor is the operator’s sense of responsibility!
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What is the air volume at the furnace bottom, and what is the particle size of the tailings?
Most of the cold ash comes from the ore fed into the furnace; due to inadequate quality control, larger coarse particles end up entering the furnace. Furthermore, an excessive or insufficient airflow in the furnace leads to stratification.
The problem of cold ash in fluidized bed furnaces is quite complex; sometimes it is not caused by a single factor. It is possible to adjust the gas flow rate and measure the particle size of the slag to determine whether they are compatible