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Question:

Why calcination furnace is used in the production of sulfuric acid from calcined pyrite?

Why calcination furnace is used in the production of sulfuric acid from calcined pyrite?

Answer:

Because the boiling furnace can make the burden evenly but also can make the charge and air full contact, ensure stable and fast oxidation process, the stationary and the whole process in material consumption, SO2 and energy transfer.
Problems needing attention in the process of using:Control furnace temperature stability, maintain continuous and stable operation, avoid frequent parking.It is the first condition to control the furnace temperature stability that the sulfur content of the furnace is stable.
Controlling the particle size of the furnace is stable and standard. It is also a prerequisite to ensure long period operation of the fluidized bed furnace. In particular, the burning of tailings of the furnace, a large number of large quantities of raw materials into the furnace, will soon lead to cold ash deposition in the furnace, the bad treatment will be cold, gray scarring. Therefore, in the screening process of raw materials, once the sieve is found damaged, it must be repaired or replaced immediately. Therefore, the sieve is best left in place. In the production process, the bottom temperature suddenly dropped to normal temperature, boiling layer upper temperature normal or decreased (no temperature rise and the outlet of the boiler or the first stage purification equipment before the temperature rise phenomenon), observe the direction of the furnace boiling condition is not good, the dark color, through analysis, troubleshooting and scarring the furnace cooling water tank leak, cold ash processed by the furnace out.

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