A study on shaft kiln to calcine dolomite with coke-oven gas

In view of the low production capability and high energy consumption with the gas - burning shaft lime kiln used in metallurgical works, a double pre- heating technique is employed in the shaft kiln, which is recently completed at SISG and coupled with a metal-tube heat exchanger.

The optimal refractory and its component in the shaft furnace tamp layer obtained through test were introduced,while the practical operational effect after innovation was introduced too.

Because of the limitation of the lime shaft furnace volume(250?m 3) and its design productivity (0 85?t/(m 3·d) ),the lime output was not fulfill the requirement of sintering production In order to increase the lime output,the enlarging furnace volume modification was conducted (from 250?m 3 to 298?m 3),and the further modification scheme was also propose

This paper does some research works based on the analysis of 5# lime vertical kiln in Benxi Iron andSteel Company.

In this paper , a cooling method of hot roast in the lower cooling zone of the vertical kiln for alumina roasting are introduced in detail.

The general situation of taking the cookery coal gas as the cleaner fuel for gas-burning limestone vertical kiln were introduced from domestic and foreign countries.