The sponge iron making with iron sludge produced during DSD acid-making can be used for not only general metallurgy but also iron-carbon bed to treat DSD acid oxidation wastewater.

This paper analyses the general disposal and technical parameter of the new hydraulic exchanging direction shunting diesel locomotive which fits metallurgy enterprise railroad transportation.

General and special equipment of mine, metallurgy, chemistry, coal, foodstuff and other industries, pressure container, etc.