Iron and steel enterprises in the steel making process to use a lot of lime, lime consumption up to 100-110kg / t steel This also created the rise of lime kiln, lime kiln more types of kiln, rotary kiln and ring kiln mainly to vertical Kiln mainly. Next for everyone to briefly introduce the refractory material in the application of lime kiln.
1. Feeding and preheating belt lining work temperature is low, mainly by the material of the mechanical impact and wear more powerful, so the selected refractory material must have a dense organization, good wear resistance, compressive strength , Strong resistance to erosion, anti-peeling and other characteristics, the choice of dense clay brick masonry.
2. Calcined with lining, at high temperatures by the material wear, air erosion and CaO chemical erosion and other effects, damage faster. The choice of refractory material is also more demanding, to have a high refractoriness, good corrosion resistance, good wear resistance, serious and strong stability and so on. For small and medium-sized shaft kiln, the general selection of low porosity of high alumina brick and silicon wire brick; for large shaft kiln mostly magnesium chrome brick, magnesia brick, magnesium spinel brick and other basic brick for firing with lining.
3. Cooling zone and the discharge around the mouth of the lining, the use of temperature is relatively low, the cause of damage is the lime wear and cold and heat caused by the role of alternating temperature difference, the choice of refractories must have excellent wear resistance, good resistance Peeling and high density, this site can choose high-strength clay brick masonry.
HOME