CEMENT

[:ru]Абрамсон И. Г.[:en]Abramson I. G.[:] [:ru]д.т.н, ЗАО «НИЦ «Гипроцемент – Наука», Санкт-Петербург[:en]Doctor Eng. Sci., CJSC «Scientific and Research Centre «Giprocement – Nauka», Saint-Petersburg[:]

Бушихин В. В. помощник председателя комиссии Общественной палаты Ленинградской области по природопользованию и экологии

Alitinform №1 (08) 2009 г. 27-32 p.

Abstract

In 1970-80s which have become the period of the highest rates of domestic cement industry development the choice of a fuel type was determined by reasons of technological suitability and power effectiveness. Taking into consideration extra expenses required to prepare coal for being fed into the kiln – the necessity of its grinding and impoverishment (to prevent explosions), as well as additional dust formation, coal has been used, as a rule, only in the case when a cement plant was situated at the economically acceptable distance from a coal mine. Plentiful gas resources of our country and relatively expanded gas pipe lines’ infrastructure led to the situation when, in spite of higher cost of gas calories, Soviet cement industry was based, in general, on gas fuel.

Growth of gas share has been continuing up to the year 2004, when it reached 93,2% (Table 1). Only in 2005 it started to decrease slowly, at present still being at the level of 90%. This can be explained not only by the ecological advantages of natural gas in comparison with coal, but also by prices ratio which recently existed.