绥阳林业局位于黑龙江省东南部,与吉林省交界,以森铁运材为主,机车喷火是一个主要危险火源。为了控制这一火源,以往每年采用割草的办法开设森铁防火线,但实际上用割草来建立的防火线质量差,达不到防火的效果,防火期间机车要戴上两层防火网,仍难免有火情发生,最突出的是1984年秋冬期间,天旱雨雪少,机车喷火竟达十多次。为了创造护林防火的新局面,有效地控制火源,和能少戴一层防火网罩,减少防火网对机车功率的影响,在85年的春秋两季,进 Suiyang Forestry Bureau is located in the southeastern part of Heilongjiang Province, at the junction with Jilin Province, with Morimatsu as the main material, and locomotive spitting is a major source of danger. In order to control this source of fire, the Senkat fire line was mined in the past every year. However, in fact, the quality of the fire line established by mowing is poor, failing to achieve the effect of preventing fire. During the fire fighting, locomotives should wear two layers of fire protection Network, it is still inevitable that a fire occurs, the most prominent is the fall and winter of 1984, less rain and snow, the locomotive spit as many as ten times. In order to create a new situation in the protection of forest fires, to effectively control the source of fire, and to wear a layer of fire-proof grille to reduce the impact of fire-prevention net on locomotive power. In the spring and autumn of 1985,