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黑龙江省玉米收获一般在9月20日以后,此时的玉米叶已经干枯,含水率低于10%,容易被引燃。自走式玉米联合收获机如果设计不合理,在作业过程中极易发生着火事故,扑救不及时会造成重大经济损失。2010年11月和2011年6月,笔者对黑龙江省境内的4行自走式玉米联合收获机作业状况进行了调查。在调查的230台4行自走式玉米联合收获机中发生着火事故20起,着火率占8.7%。引起火灾最多的原因是排气管根部与涡轮增压器连接处
Corn harvest in Heilongjiang Province is generally after September 20, when corn leaves have dried up, moisture content below 10%, easily ignited. If the self-propelled corn combine harvester is not designed properly, it may easily cause a fire accident during the operation. If the rescue is unsuccessful, significant economic losses will be caused. November 2010 and June 2011, the author of Heilongjiang Province, 4 rows of self-propelled corn combine harvester operations were investigated. Twenty fire accidents occurred in 230 four-row self-propelled corn combine harvesters surveyed, accounting for 8.7% of the total fires. The most common cause of fire is the connection of the exhaust pipe root to the turbocharger