Gas Emission Reduction TRIZ Cases

Direct casting, hot transfer, and heating above transformation temperature cut energy use, CO2, and surface defects in steel strip production.

Direct casting, heating, and rolling keep steel above the transformation range to cut energy loss, CO2, and surface defects.

Pressurized carrier gas injects carbon powder into the force-feeder tank before pressing, improving carbon uniformity and hot iron meltability in the EAF.

This ironmaking case mixes mineral powder, reductant, and slag former, then uses vortex stirring for continuous molten discharge.

A bypass duct and regulation valve adapt reducing-gas flow, avoiding hot DRI cooling and storage when furnace demand changes.

This case uses a molten-salt electrochemical reactor to form Fe3C from iron-containing solids, separate other metals, and cut emissions.

Magnetic separation removes gangue from ultra-fine ore during reduction, lowering slag generation and reducing agent consumption.

Briquetting carbon powder in sponge iron interstices reduces electricity requirements and electrode consumption during hydrogen-reduced sponge iron melting.

Bitumen coating prevents silicate layer formation on calcium oxide, maintaining desulfurization efficiency while reducing iron loss in pig iron melts.

Magnetite ore powder undergoes microwave sintering above 1100°C to produce high-strength sintered iron.

A composite iron pellet with a seamless core-shell transition integrates carbonaceous reducing agents directly into the iron ore matrix.