Metallization

Over the last years much attention for ferrous metals production is given to iron direct reduction technology. Exclusion of blast furnace production from the steel production cycle partially enables (and in some cases completely) to avoid of using blast-furnace coke.

Development of technologies fop iron reduction without using coke became one of the most popular for relatively small productions (500-2000 thous. tpy). However, in order to select the technology it is necessary to consider lots of factors. Not all of ores are equally well treated according to various technologies.

For this selection the significant importance is given to objectivity, which can’t always be provided by companies supplying equipment.

First work experience in the field of metallization JSC «Uralmekhanobr» acquired in 1985 when developing the firing technology for pellets from Kachkanarsky and Volkovsky concentrates for metallization in shaft furnaces.

In 1988 the technology for production and smelting of Kachkanarsky pellets with a partial use of RDI pellets was developed and implemented under conditions of existing indurating machines at Kachkanarsky GOK.

Its continuation the topic regarding raw materials preparation for metallization received when developing the lumping method for fine chromite ores and technologies for various metallization grades of chromite raw materials for production of ferrochrome and direct steel alloying.

In 2000-ies specialists of the institute performed works on development of the technology for treatment of zinc containing wastes from the steel industry. The technology included zinc distillation and metallization of iron contained in dust and slimes.

When developing the steel production technology from titanium magnetite ores of Tebinbulak deposit the issue of iron direct reduction from titanium magnetite was also studied. The experience gained within more than 20 years of studying titanium magnetites metallization enabled to obtain a product (cast iron granules) containing 95-96 % Fe, 1,5-2% С.

We have equipment that enables:

  • To model metallization processes using both products of natural gas reforming and solid fuel  as reducing media;
  • To determine quality figures of metallization products according to standard techniques;
  • To select additives for improving properties.