我省中小型轧钢机组约有100套,现已达到的生产能力,每年轧材为80～90万吨,轧废料中除去切头、切尾、烧损等,剩下的是冷条量,平均按2%计,每年约有1.8万吨冷条,这些冷条如以废钢处理,价值仅为180万元,若再进行回炉加热轧制成材,其价值可达1188万元.无论从经济效益上或节约能源上看,冷条作为废钢处理是不太合适的,推管式连续加热炉就是在这个设计思想指导下产生的.冷条的形状是极其不规则的,过去是用室式加热炉(俗称灶式炉)来加热的,不仅炉子的产量低,质量差,操作条件恶劣,且能耗非常高,有的炉子单位煤耗高达400公 About 100 sets of small and medium-sized rolling mill in our province have now reached the production capacity of 80 to 900,000 tons of rolling material each year, removing scrap cut head, tail, burning, etc., leaving the cold bar, An average of 2% of the total, about 18,000 tons of cold bars each year, such as the cold bar as scrap processing, the value of only 1.8 million yuan, if further heating and rolling back into the timber, the value of up to 11.88 million yuan in terms of economy Benefit or energy conservation point of view, the cold bar as scrap processing is not appropriate, push-tube continuous heating furnace is under the guidance of this design idea. Cold bar shape is extremely irregular, the past is the use of chamber Heating furnace (commonly known as stove furnace) to heat, not only the furnace yield is low, poor quality, poor operating conditions, and the energy consumption is very high, and some units of coal consumption up to 400 kilograms