广西第二矿务局某汞矿过去一直使用焦炭作竖炉燃料,为了降低成本,增大处理能力,于1965年9月份开始在生产上采用无烟煤作竖炉燃料,取得成功。无烟煤挥发物很少(2～8%),含水份低,着火点近600℃,固定炭含量接近焦炭。过去曾有人将无烟煤用于高炉生产,只因在加热时易于碎裂,使得炉料变紧,造成操作困难。但炼汞竖炉炉温要求不很高,约 In the past, a mercury mine of Guangxi Second Mining Bureau used coke as a shaft furnace fuel. In order to reduce costs and increase capacity, a mercury-free coal was used as a shaft furnace fuel in September 1965 to achieve success. Anthracite volatiles rarely (2 ~ 8%), low moisture content, the ignition point of nearly 600 ℃, fixed carbon content close to the coke. In the past, some people used anthracite for blast furnace production, which was easy to crack because of heating, which caused the charge to be tightened, resulting in difficult operation. However, the temperature of the vertical shaft furnace mercury requirements are not high, about