For developing the Shenhua coal industrial utilization field, the key point is that to enhance CWM concentration and ash fusion point.
2
渭河化肥厂原采用的黄陵煤由于煤质灰份含量及灰熔点偏高，影响德士古气化炉长周期稳定运行。
Weihe Chemical Fertilizer Plant originally used Huangling coal, but due to its high ash content and ash fusion point, it became an obstacle in the long term stable operation of the Texaco Gasifier.
3
以粘结剂、强度、灰熔点等作为技术难点，通过多年的研究开发出新型型煤生产工艺。
With the binder, strength and ash fusion point as technically difficult points, a technological process for a new type of formed coal has been developed through study for several years.
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