目前,一些地方在修筑柏油马路时,熔解沥青多是就地挖地龙直接用火烧。因沥青渣油内含有水份,如炉火控制不当,易溢油酿成火灾,很不安全(如图1)。 也有的在弧形锅内熔解沥青,锅底易积垢,传热不良,不仅浪费燃料,而且钢板易过热变形损坏,影响生产;还有的因未设防护拦杆,操作工人立 At present, some places in the construction of tarmac, the melting of asphalt is mostly direct digging the ground directly with the fire. As the asphalt residue contains moisture, such as improper control of the fire, easy to spill oil into a fire, it is not safe (Figure 1). Some arc melting pot in the pot, the pot bottom fouling, poor heat transfer, not only a waste of fuel, but also easy to overheat steel deformation damage, affecting the production; there are no protective barricade, the operator Li