SU369141A1 - CHARGE FOR GETTING A HIGHLY BASIC BOXITE SIZE - Google Patents

Description

one

The invention relates to the preparation of metallurgical raw materials.

A known charge for the production of high-basic B1 SINTER BOXED agglomerate, UN; the ingredients of which are bauxite, limestone and iron ore (or scale). However, for sintering said mixture, increased consumption of solid fuel is necessary; at this, the content of fines (~ -5 mm) in the agglomerate at a content of 5.7-7.6% carbon in the charge is not less than 1% of 30%.

In order to increase the strength of sinter and fuel economy, it is proposed in the charge to take a ratio of scale to cast iron chips within 3-5, and bauxite to limestone - within 0.8-1.2, and the ratio of the first mixture, the second, is 0, 1-, 0.15.

The initial charge is made up of two mixtures: a mixture of scale with cast iron chips in a ratio of 1 to 1 and from 3: 1 to 5: 1 and a mixture of box | Ita and lime in a ratio of 0.8 to 12. The effect is achieved with the ratio of mixtures ( first to second) from 0.05 to 1.0. The best

indicators were sintered at a ratio of the first mixture to the second 0.1-0.12.

For the preparation of the proposed mixture can be used deystBuyush, it sinter plants

technological equipment. The shavings and dross are dosed at the receiving bins of the sintering plant with dish-type feeders. Bauxite and limestone before crushing the mixture is crushed to 3-O mm in hammer crushers.

Subject invention

The mixture for obtaining highly basic bauxite agglomerate, the main ingredients of which are bauxite, I31 is known, scale and cast iron shavings, characterized in that, in order to increase the strength of sinter and fuel economy, the ratio of scale to cast iron material is taken within x 3- 5, and bauxite to limestone - 0.8-1.2, and the ratio of the first mixture to the second is 0.1-0.15.