选煤产品的质量检查,多年来我国一直沿用传统的烧灰法,从采样到报出化验灰分,一般需要十几个人紧张劳动一两个小时。由于滞后时间太长,往往起不到指导生产的作用。遵照毛主席“中国人民有志气,有能力,一定要在不远的将来,赶上和超过世界先进水平”的教导,我们于1971年开始研 Quality inspection of coal preparation products, our country has been using the traditional method of burning ash for many years, from sampling to report the test ash, the general need more than a dozen people intense work one or two hours. Due to the lag time is too long, often fail to guide the role of production. Following Chairman Mao’s teachings of “Chinese people have ambition, ability and must catch up with and surpass advanced world standards in the near future,” we started to study in 1971