70results about How to "Simple crafting system" patented technology

The invention discloses a composite filter bag, a dedusting and denitrification integrated device, and a flue gas low-temperature short-process dedusting and denitrification purifying method. The composite filter bag comprises a filter bag base body and a plurality of catalyst coating layers, wherein the multiple catalyst coating layers are coated to the inner surface of the filter bag base body;the active component of each catalyst coating layer selects one or multiple of mixtures of V2O5 / TiO2 (vanadium pentoxide / titanium dioxide), and V2O5-WO3 / TiO2 (vanadium pentoxide-tungsten trioxide / titanium dioxide). The dedusting and denitrification integrated device comprises a denitrification liquid storage tank, a microwave atomizing device and a bag type deduster, wherein the bag type dedustercomprises a plurality of composite filter bags; a denitrification liquid is sprayed into the microwave atomizing device from the denitrification liquid storage tank, then atomized, mixed with the to-be-treated flue gas, and sent into the deduster; the dust in the flue gas is firstly filtered and blocked by the outer surface of the composite filter bag in the bag type deduster, then falls into a dust hopper, and is collected; then, NOx is catalyzed to react with a denitrification agent under the catalyzing function of a catalyst coated to the inner surface of the composite filter bag, and is reduced into N2 (nitrogen gas), so that the flue gas can be purified. The composite filter bag has the advantages that the dedusting and the denitrification can be simultaneously performed; the technology process is simple and convenient, the manufacturing cost of engineering is low, and the like.

The invention relates to a wet ammonia flue gas purification process for the combined sulfur and mercury removing and the system thereof. The process adopts chlorine gas as oxidizing agent to completely oxidize elemental mercury in the flue gas, and gas phase divalent mercuric ion after being oxidized is converted into liquid phase divalent mercuric ion through the improved wet ammonia desulphurization process, and further the liquid phase divalent mercuric ion is converted into stable mercuric sulfide sendimentation through liquid phase divalent mercuric ion stabilizing agent. The system comprises a flue gas oxidizing demercuration preprocessing system composed of an oxidizing agent injection device and an electrostatic precipitator, a wet ammonia flue gas sulfur and mercury removing system composed of a reaction absorbing tower, a sulfur removing accessory substance processing system composed of a cyclone cleaner, a dewaterer, and a dryer, and a mercuric sulfide HgS sendimentation processing system composed of a wastewater buffer pool, a liquid phase mercuric ion reaction chamber, and a settling pond. The process and the system can effectively improve the oxidation rate of the elemental mercury in the flue gas, overcome the defaults that the divalent mercuric ion is easy to be reduced and released and the secondary pollution problem is caused by excess oxidizing agent, and greatly improve the efficiency of sulfur removing and mercury removing.