在二十世纪六十年代,由于经济上的需要,西德煤炭生产实行集中化以高效率低成本地进行生产,这对选煤工业的发展产生了巨大的影响。选煤厂的处理能力已大大增加,由1965年的平均280吨/时提高到目前的800吨/时。之所以能获得大幅度的提高,是由于采取了以下三个措施: 1、均质化; 2、采用大型设备; 3、实行全面降低成本的计划,同时简化了流程。 In the 1960s, due to economic needs, the centralized production of coal in West Germany was produced efficiently and at low cost, which had a huge impact on the development of the coal preparation industry. The processing capacity of the coal preparation plant has greatly increased from an average of 280 tons / hour in 1965 to the current 800 tons / hour. The reason for the substantial increase is due to the following three measures: 1. Homogenization; 2. Adoption of large-scale equipment; 3. Implementation of a plan to reduce overall costs while streamlining the process.