在经济利润承包以前,选煤厂是传统的单纯生产型经营,重产量、轻效益、产品单一。如马头、邯郸两厂,虽入洗原煤有肥、焦、瘦、贫多品种,但洗精煤牌号仅有焦、瘦两种,多年不变,未发挥峰峰矿务局原煤品种齐全的优势。自国家实行对外开放、对内搞活的经济政策以来,选煤厂开始转轨变型,改革产品结构,生产混煤、混末煤、低热值煤等,同时,选煤厂开始试验科学配煤入洗。 Prior to the contracting of economic profits, the coal preparation plant is a traditional simple production-oriented operation, heavy output, light efficiency, single product. Such as horse head, Handan two plants, although into the wash of coal have fat, coke, lean, poor varieties, but only coke scouring grade, thin two, unchanged for many years, did not play Feng Feng Mine complete range of raw coal The advantages. Since the state implemented the policy of opening to the outside world and invigorating the domestic economy, the coal preparation plant began to change its shape and reform its product mix to produce mixed coal, mixed coal and low calorific value coal. At the same time, the coal preparation plant began to experiment with scientific blending coal washing .