The invention discloses a carbon-containing
slag suppression cold-bonded pellet and a utilization method thereof. In the carbon-containing
slag suppression cold-bonded pellet, the TFe content is smaller than or equal to 45%, the carbon content is larger than or equal to 5%, the content of volatile components (including decomposable gas) is larger than or equal to 10%, and the
specific gravity is smaller than or equal to 3.5 g / cm<3>. The pellet is added into a converter from a high bin while lance lifting is about to be finished through blowing in the dephosphorization stage of the converter or when lance lifting is about to be finished through the blowing end point of the converter, and then deslagging or tapping is carried out. The carbon-containing
slag suppression cold-bonded pellet and the utilization method have the beneficial effects that iron and carbon in gas dust
sludge or other iron and carbon containing
metallurgy dust
sludge can be efficiently utilized, and
waste paper pulp,
tar slag and other waste are used as additives for
pelletizing; the process is simple, and cost is low; the pellet is only used as slag,
heat energy of the slag is fully utilized, and the influence of the temperature of
molten steel is extremely low; foam slag can be suppressed effectively, and deslagging or tapping in the dephosphorization stage is facilitated; and by means of reduction of FeO in the pellet and FeO in the slag, the yield of the
molten steel is increased, consumption of a deoxidizing agent and an
alloy is reduced, and slag-splashing furnace protection work is facilitated.