Method of starting a plant for the production of pig iron or steel pre-material as well as arrangement for carrying out the method

Abstract From the Canadian patent

There is disclosed a method of starting a plant for the production of pig iron or steel pre-material including a direct-reduction shaft furnace and a meltdown gasifier. - At first the still empty meltdown gasifier is heated up by aid of a combustible gas and the smoke gases forming are introduced into the still empty direct-reduction shaft furnace. - Coke or a degassed coal product is charged into the direct-reduction shaft furnace and the smoke gases introduced into the direct-reduction shaft furnace are passed through the coke or the degassed coal product by releasing their sensible heat. - The coke or the degassed coal product thereby is heated to ignition temperature and is charged into …