Blast furnace sends wind to raise a canal to use fireproof data

   Of blast furnace send wind to raise a canal to be located in sirocco conduit rear, it is the conduit is defeated by wind between join blast furnace, say its send wind to raise a canal for blast furnace commonly. Its action sends sirocco into blast furnace namely inside, OK still to furnace gush fuel. Its working environment cans be imagined, because carry sirocco all the time, if working hours became long, temperature can rise continuously, can appear even burn red phenomenon. Use namely at that timeFireproof materialWhen, the heat conduction rate of fireproof material is very low, if use manyFireproof materialcan effective drop its surface temperature, reach the service life that prolongs device sending wind thereby.