Table of Contents
What is sintering in iron making?
Sintering is defined as the agglomeration of the Iron ore fines (generally <8 mm) by incipient fusion of fine mineral particles with heat produced by burning of coke breeze, uniformly distributed in raw mix bed.
What is sintering in steel plant?
Sintering is a thermal process (carried out at 1300 deg C to 1400 deg C) by which a mixture of iron ore, return fines, recycled products of the steel plant industry (such as mill scale, blast furnace dusts, etc.), slag forming elements, fluxes and coke fines are agglomerated in a sinter plant with the purpose of …
Why do we do sintering?
Sintering is a heat treatment commonly used to increase the strength and structural integrity of a given material. Sintering typically takes place in a single, elongated furnace with different temperature zones. To facilitate the process, alloying elements or pressing lubricants may be added to the metal powder.
What do you mean by super Fluxed sinter?
Super flux sinters – These are the sinters where sufficient flux is added in the sinter mix for producing slags of desired basicity in blast furnace taking also into account the acidic oxides in the coke ash in addition to the other acidic oxides in the blast furnace burden.
Where is sintering used?
Sintering is a heat treatment commonly used to increase the strength and structural integrity of a given material. Powder metallurgy processes use sintering to convert metal powders and other unique materials into end-use parts.
What is the temperature of sintering process?
For pure metal solid solutions, the sintering temperature is 2/3 – 3/4 Tm. For example, the sintering of Fe takes place at 1000 °C–1200 °C, and for Cu at 700 °C–900 °C.
What is the sinter temperature of iron ore?
The present work provides information on the iron ores that form part of the mineral mix which, once granulated, is loaded onto the sinter strand where it is partially melted at a temperature of between 1250-1350 °C and undergoes a series of reactions…
How does sintering work?
The generation of volatiles from the fuel and flux stone creates a frothy condition and the incoming air quenches and solidifies the rear edge of the advancing fusion zone. The product ‘sinter’ consists of a cellular mass of ore bonded in a slag matrix.
How has sintering technology changed over the years?
The technology of sinter making has undergone radical changes both in operation and process throughout the world. High competitiveness amongst the iron and steel industries has forced the operators to radically modify their operation in several fronts including the raw material preparation through sintering.
Is sintering a good way to study?
Nevertheless, despite this good knowledge of sintering, there are still a number of issues that need to be studied.