Installation for the direct production of sponge iron particles and liquid crude iron from iron ore in lump form

Apparatus for production of sponge iron particles and liquid crude iron in lump form;

• comprising,
• a direct reduction shaft furnace which, at the top, has a charging means for iron ore in lump form and a gas outlet for expended reducing gas (waste gas), and, at the bottom, a discharge means for the sponge iron particles produced by direct reduction from the iron ore, and a gas inlet for hot reducing gas,
• a melting gasifier which, in an upper region, has openings for feeding thereto sponge iron particles, coal and additives, and a gas outlet for reducing gas produced (crude gas), and, in a lower region, outlets for liquid crude iron and liquid slag, and which also has, above the slag level, at least one tuyere for injecting gases and fine-grain solids, to form a gasification zone,
• cooling means for hot sponge iron particles, which, at the top, has an intake opening for the hot sponge iron particles and an outlet for the cooling gas and, at the bottom, a discharge opening for the cooled sponge iron particles and an inlet for the cooling gas,
• a waste gas scrubber connected to the waste gas outlet of the direct reduction shaft furnace, and
• conduit means for connecting said shaft furnace meeting gasifier, cooling means and waste gas scrubber,
• classification means for separating the sponge iron particles provided with a fine grain fraction outlet opening which is connected by conduit means to an upper opening of the melting gasifier and a coarse grain fraction outlet opening, a gas outlet means in the waste gas scrubber communicating with the tuyere in the lower portion of the melting gasifier.

Apparatus for production of sponge iron particles and liquid crude iron in lump form comprising,

• a direct reduction shaft furnace which, at the top, has a charging means for the iron ore in lump form and a gas outlet for the expended reducing gas (waste gas) and, at the bottom, a discharge means for the sponge iron particles produced by direct reduction from the iron ore, and a gas inlet for hot reducing gas,
• a melting gasifier which, in the upper region, has openings for the feed of spong iron particles, coal and additives, and a gas outlet for reducing gas produced (crude gas), and, in the lower region, outlets for liquid crude iron and liquid slag, and which also has, above the slag level, at least one tuyere for injecting gases and fine-grain solids, to form a gasification zone,
• a cooling means for hot sponge iron particles, which, at the top, has an intake opening for hot sponge iron particles and an outlet for cooling gas and, at the bottom, a discharge opening for cooled sponge iron particles and an inlet for cooling gas,
• a waste gas scrubber which is connected to the waste gas outlet of the direct reduction shaft furnace, and
• conduit means for connecting said shaft furnace, melting gasifier, cooling means and waste gas scrubber, classification means for separating the sponge iron particles provided with a fine grain fraction outlet opening connected by a conduit to an upper opening of the melting gasifier, and a coarse grain fraction outlet opening, the intake opening of the cooling means being connected by a gravity feed conduit to the discharge means of the direct reduction shaft furnace and the outlet opening of the cooling means being connected to the classification means.