Steel and iron enterprises require large quantities of energy. Reducing energy consumption and improving the utilization of residual heat and energy are effective measures taken by the steel and iron enterprises under the server conditions. The utilization of flushing slag water residual heat and air compressor station residual energy of a steel and iron enterprise in Shandong was shown. The utilization plan and orientation of low temperature heat source was proposed

offering rational suggestion for residual heat utilization in steel and iron enterprises.