Hot air supply system is an important part of the slag production line, among more than 100 production lines in CHAENG, a variety of them adopts hot air supply, mainly including coal, blast furnace gas, natural gas, bio-fuels. Now our company will focus on introduce blast furnace gas and bio-fuel heat two ways.

Blast furnace gas for 600,000 tons slag production line

Blast furnace gas is from the top of blast furnace, blast furnace is a by-product produced by steel casting. About 60% blast furnace fuel heat will transferred to blast furnace gas. On the one hand, CO content in blast furnace gas is generally high 25% - 30%, toxic, if emissions to the air could cause environmental pollution. On the other hand, blast furnace gas containing combustible carbon monoxide gas, which is a low calorific value gas fuel, can be used for enterprise self use gas. The blast furnace gas recycling can realize double benefit to economy and environment.

CHAENG contracted build an annual 600,000 tons output slag production line in the hot blast furnace iron and steel plant in the process of emission of blast furnace gas. Blast furnace gas with high toxicity and low calorific value, most cases are discharged into the air, therefore, during this line, we adopted the blast furnace gas on the minimize re-use which is benefit to surrounding environment.

Bio-fuels for slag production line

Bio-fuels is biomass fuels, which is made from agricultural and forestry wastes such as stem crops, peanut shells, bark and sawdust as raw materials, and then through crushed, mixed, extruded and dried. Block, granular, etc. will directly burning of new type clean fuel.

CHAENG contracted to build an annual 300,000 tons of slag powder production line on the use of biomass fuel. Bio-fuels are produced in the process of harmlessness and recycling of organic wastes in agriculture, forestry, and urban and rural areas. All bio-fuels are able to enter the biological cycle of the earth, and even released carbon dioxide can be absorbed by plants, and participate in the earth's cycle, so that achieve zero emissions. In a word, it has the sustainability, resources recycle ability, which is a modern advanced production mode.