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Mingsheng ammonia method

Technical features

1. Sufficient absorption to prevent aerosol generation: control the flow rate of absorption section, add filler layer at the same time, prolong the absorption time, effectively prevent the generation of aerosol, and make the absorption reaction more complete.
2. Power consumption reduction: the absorption section and the purification section add different height of filler, reduce the relative liquid gas ratio.
3. The use of two-stage purification system can effectively prevent ammonia escape and aerosol generation, and clean the micro dust. At the same time, circulating water is used as process make-up water to maintain water balance in the system. This design makes full use of the dissolving and cleaning function of the process water, so that the process water can not only be used as the system make-up water, but also can effectively absorb the aerosol in the flue gas to prevent ammonia escape.
4. Through automatic pH interlock control and strict control of pH value, it can not only prevent incomplete absorption of SO2 due to insufficient ammonia, but also prevent ammonia from escaping due to surplus.
5. Complete oxidation: the use of grid oxidation air distributor, so that the gas distribution is uniform, full contact with the circulating liquid, and at the same time, improve the oxidation level, so as to complete oxidation.
6. The water consumption and steam consumption are reduced by crystallization in the tower.
7. The calculation of process index is reasonable, and frequency conversion technology is used to reduce power consumption and avoid wear of pump impeller.
8. DCS system is used for automatic control to reduce labor cost.
9. In the post ammonium sulfate system, thickener and cyclone are combined to improve the crystallinity of ammonium sulfate, increase the yield of ammonium sulfate, improve the circulation quality of circulating solution and ensure long-term operation.
10. Put an end to the problem of corrosion: the process pipeline is made of glass fiber reinforced plastic lined with silicon carbide, the valves are all lined with fluorine, the desulfurization tower is lined with glass flakes, and the resin is of domestic famous brands, so as to ensure the engineering quality and prevent scouring and corrosion.
11. Anti blocking of key parts: regular flushing shall be set at the easily blocked parts, and DCS system shall be automatically controlled to avoid blocking caused by crystallization in high concentration solution, such as reflux pipe of concentration section, inlet and outlet of crystallization pump, etc.

 
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