Saint-Petersburg State Mining University (Russia):

V. B. Kuskov

J. V. Kuskova

A. V. Kornev

V. L. Trushko

E-mail: opikvb@mail.ru; ledizet@rambler.ru; opiopi@bk.ru

For some types of iron ore briquetting the process of clotting may be preferable. These ores are rich iron ores with Fe content equals to 60 % and more. These ores don’t need processing and fine grinding and it is obvious that their pelletizing, requiring pre-pulverizing irrationally. In comparison with agglomeration, briquetting is cheaper and more environmentally friendly process.

Rich ores of the Yakovlevskoe deposit can be considered as an example of such ores. Ore has martite, martitehydrohematite, hydrohematite varieties and consequently the iron content, in different particle size classes, and also distribution of particle size has great variety (the less is particle size, the more iron content is in ore).

According to the developed technology of briquetting, it is possible to receive durable iron-ore briquettes without iron content reduction or a small decrease of iron content in briquettes. And the raw material (without wastes) is used for metallurgical processing.

1. Lotosh V. E., Okunev A. I. Annealing-free clotting of ores and concentrates. –M.: Nauka, 1980.

2. Method of preparation iron ore for metallurgical processing. An application for RF patent 2010148939 30.11.2010.

3. Method of preparation furnace charge material t for metallurgical processing. An application for RF patent. № 2011118712 10.05.2011.