一、概况 牡丹江耐火材料厂是生产多种耐火制品的工厂。原来采用倒焰窑烧成设备,生产工艺落后,工人劳动条件差,能源消耗大,企业多年亏损。在黑龙江省计经委及有关部门领导与支持下,从八一年十月开始对工厂窑炉进行了全面技术改造,建成了一座可烧五万吨耐火材料的煤气站,长158.4米的隧道 I. Overview Mudanjiang refractories plant is producing a variety of refractory products factory. The original use of inverted kiln firing equipment, backward production technology, poor working conditions of workers, energy consumption, business losses for many years. Under the leadership and support of the Planning and Economic Commission of the People’s Republic of China and other relevant departments in Heilongjiang Province, a comprehensive technical renovation of the factory kiln was carried out in October 1981, and a gas station capable of burning 50,000 tons of refractory materials and a tunnel of 158.4 meters long