面向加热炉利用率的锻坯装炉节能调度

Forging billet charging energy-conservation scheduling for heating furnaces efficiency

为了实现锻造行业的节能目标,首先分析了锻坯的特征,然后根据锻坯的加热规范,考虑锻坯形状和尺寸对加热时间的影响,建立了以锻坯装炉容量差率为目标函数的锻造装炉节能调度模型。基于遗传算法,采用二进制编码及精英保留策略,构造出面向目标函数的求解算法。同时,通过相关算例,验证了锻坯装炉节能调度模型及其求解方法的有效性及可行性。最后,通过应用实例分析,得到每批加热炉工作时间减少量分别为11,14,18和15 min,平均每批锻坯的生产能耗将减少1174.5 GJ的能量。该节能调度模型和求解方法能够满足现场装炉需求,在一定生产工艺条件下,能有效提高加热炉利用率,减少加热炉工作时间,实现了节能降耗的目标,有助于锻造企业生产过程中的节能。

In order to achieve energy efficiency goals for forging industry,firstly,the characteristics of forging billet were analyzed,then according to specifications of forging billet heating,a forging billet charging scheduling model with an objective function,which was capacity residuals of charging,was established considering influences of the shape and size of the forging billet on heating time. Then,based on genetic algorithm,an algorithm for objective function was constructed by genetic algorithm binary coding and elite reserved strategy. At the same time,the forging billet charging energy-saving scheduling model and its effectiveness and feasibility were verified by the relevant examples. Finally,by analyzing application examples,the amount of work time of each furnace is reduced 11 min,14 min,18 min and 15 min respectively,so the power of 1174. 5 GJ is reduced for each batch of forging billet. Thus,it is proved that the energy-efficient scheduling model and solving methods meet the needs of field charging. Under the certain production conditions,the furnace utilization is effectively improved,furnace working period is shortened,and the goal of energy saving is achieved. At last,it helps to save energy in the forging process.