Comprehensive multi-gas source low-concentration SO2 fume recycling acid-making technological process
A process flow, SO2 technology, applied in the direction of sulfur compounds, inorganic chemistry, dispersed particle separation, etc., to achieve the effect of low operating cost, high sulfur recovery rate, and promotion of development
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[0034] Example: In the following tin smelting process, the Australian furnace, fuming furnace, and boiling furnace contain SO 2 The comprehensive recovery of flue gas is used as an example to illustrate the process.
[0035] Such as figure 1 As shown, the bag dust collection system of 5 furnaces, including 1 Australian furnace, 2 smoked furnaces, and 2 boiling furnaces, contains low-concentration SO 2 The flue gas a, b, c, d, and e are firstly adjusted by pressure and mixed into the high-efficiency scrubber 201. In the process of colliding with the liquid injected in the reverse direction from the large-caliber nozzle, the flue gas purification and the flue gas temperature are realized. Reduce; then the saturated wet flue gas enters the packing washing tower at the lower part of the purification combination tower 202, and exchanges heat with the washing liquid and flue gas sprayed from top to bottom on the surface of the packing, so that the flue gas temperature drops to about 40°...
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