高炉大钟所产生的应力与应变由机械载荷与热载荷的综合作用来确定。作用于料钟上的机械载荷是料斗接触面上的反作用力R与炉顶煤气压力P之和。而料重、料钟卷扬机钢绳拉力及料钟与料斗接触面上的摩擦力,因为其值比较小,而且互相抵消,可以忽略不计。反作用力R的垂直分量R_x和径向分量R_z可近似地认为沿料钟四周均匀分布: Blast furnace bell generated by the mechanical stress and strain caused by the combined effect of heat load to determine. The mechanical load on the bell is the sum of the reaction force R at the hopper contact surface and the top gas pressure P. The material weight, material bell hoist rope tension and material bell and hopper contact surface friction, because its value is relatively small, but also offset each other, can be ignored. The vertical component R_x and the radial component R_z of the reaction force R can be approximately assumed to be uniformly distributed along the circumference of the material bell: