Composition for fabricating pellets

Abstract

The invention relates to a composition for fabricating pellets, which comprises boric sludge and cement. The composition can be fabricated by directly adopting boron or ferroboron tailing powder, namely the boric sludge; the pellets fabricated from wastes not only have low cost, the bonding performance of the pellets is improved simultaneously, and the stability and fluidity of slag are improved; especially in the process of smelting the pellets, no or a little magnesium powder and boron powder both with high price are necessary to prepare, therefore the smelting cost is further reduced.

Description

technical field [0001] The present invention relates to a composition for making pellets. Background technique [0002] Pellets are balls made of mineral powder such as iron ore powder with uniform particle size and sufficient strength. When making pellets, first add appropriate amount of water and binder to the mineral powder, and then make it into green balls through a pelletizer, then dry the green balls, preheat them, and roast them in an oxidizing atmosphere to make pellets. into pellets or called pellets. In the field of iron and steel, pellets and sinters have also become important blast furnace materials, and are also suitable for non-ferrous metal smelting. [0003] Since the green balls contain a certain amount of water, during the drying process, the temperature of the sintered green balls is too high, and the water in the green balls diffuses from the inside to the outside through the steam. When there is too much steam, it is too late to diffuse to the surface...

AI Technical Summary

Problems solved by technology

[0008] The task of the present invention is to provide a composition for making pellets that solves the problems of easy cracking of pellets and high smelting costs by improving the bonding performance of boron mud