Ammonia desulfurization process has specific features which other technologies don't have.Ammonia is a good alkaline absorbent.Analyzed from chemistry principle,the absorption of SO2 ia an acid-alkali neutralizing reaction process.The alkalinity of ammonia is stronger than calcium base absorbent.The process of calcium base absorbent absorbing SO2 is gas-solid reaction,but ammonia absorbing SO2 is gas-liquid or gas-gas reaction.Compared to calcium base desulfurization technology,ammonia desulfurization has faster reaction speed,more thorough reaction and high desulfurization efficiency.Ammonia desulfurization is getting more and more attention,and it can meet the requirements of different enterprises in different area.Ammonia desulfurization is a recycling method which can drastically reduce production cost by selling byproducts.Its economic benefit will be better with the content increase of SO2 in flue gas.Ammonia desulfurization encourages enterprises to use medium to high sulfur content coal which is at a relatively low price.
2.Double alkali method desulfurization
Doublealkali method desulfurization technology is developed to overcome the weakness of scaling by limestone desulfurization method.Working theory of double alkali method desulfurization technology is as follows.
Double alkali method uses sodium base desulfurizer to desulfurize in the tower.The byproduct after reaction has high solubility because sodium base desulfuizer has strong alkaline.Therefor,it cannot cause scaling problem due to saturation.On the other hand,the byproduct is exhausted into reclamation pond and regenerated to sodium desulfurizer for cycle use.Double alkali method reduce investment and operating cost,which is suitable for small and medium boiler reformation.
Carbon black filtering collector is absolutely necessary equipment for carbon black production line.Its round shape barrel structure and stainless steel give the collector good rigidity and high anti-corrosion,and it guarantees long lifetime of collector and continuous production of carbon soot line.This collector has following features:
1.resistance to high pressure:the whole structure is a cylinder shape,and the top is a taper shape.It can bear 60000 Pa negative pressure.The collector will not be deformed,and it will work well in the condition of negative pressure.
2.the body shell has such features as high temperature resistance,anti corrosion.
3.stainless steel pipe has such features as high temperature resistance,anti corrosion and smooth surface.
4.the electric control cabinet ventilates micro positive compressed air to keep cabinet inside clean.
1.DMC pulse bag filter warehouse roof
wind capacity treatment(m3⁄h)
anti-blowing source of pressure(MPa)
2.bear high-pressure dust collector of vacuum seal molding line(used for vacuum pump)
quantity of bags
remarks:we can design the non-generic equipment based on the combination arrangement of the filter bag and reverse blowing system to achieve the required filter area.
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