我处有一台徐州筑路机械厂产的ＷＢＬ２１型稳定土拌和机，在新机时连续工作不到１ｈ即出现“开锅”现象。后来，更换了一台同型号的新发动机，并且对拌和机的拌和刀具的结构进行了改进，但均未能从根本上解决这一问题，因此这台拌和机一直长期闲置未用。 发动机温度过高不外乎 I have a Xuzhou Road Machinery Factory production of WBL21-type stabilized soil mixing machine, continuous work in the new machine less than 1h that “boil” phenomenon. Later, the replacement of a new engine of the same type and the improvement of the structure of the mixing tool of the mixer failed to solve the problem fundamentally, and therefore the mixer had not been used for a long time. Engine temperature is nothing more than excessive