简介：

简介：Inordertoprolongtheservicelifeofthecoolingzoneoflargescalecokedryquenchingovens,sixkindspossiblerefractoriesforthecoolingzoneoflargescalecokedryquenchingovens:SiCcontainingbrickA,SiCcontainingbrickB,mullite-andalusitebrick,spinelcontainingbrick,zirconiacontainingbrick,corundum-mullitebrickandgradeBmullitebrick,wereanalyzedinproperties.ItisfoundthatthecoolingzoneliningadoptingSiCcontainingbricksormullite-andalusitebrickshasmuchlongerservicelife.Basedonthis,anewtypeofwearresistantbrickwasdeveloped.Thebrickhasacompressivestrengthof135MPa,awearlossof2.10cm~3(onlyaquarterofthatofthegradeBmullitebrick),andahigherbulkdensitythanthegradeBmullitebrick.Theapplicationofthebrickina140t·h~(-1)cokedryquenchingovenshowedthatitperformedbetterthanthegradeBmullitebrick.Thecoolingzoneadoptingthenewbrickshasalowercokedischargingtemperature,whichisbeneficialtotheenhancementofheatrecoveryefficiencyandsteampowergeneration.