1) primary purification
一次精制
1.
This study was carried on the primary purification of sodium chloride from flotation salt in potassium chloride production in Qinghai salt industrial company.
利用青海盐湖工业(集团)公司氯化钾生产过程产生的浮选尾盐进行氯化钠一次精制试验,在对原盐进行充分的成份分析和粒度分析的基础上,通过二段洗涤工艺过程,一次精制后氯化钠干基含量达到98%以上,氯化钾含量从原盐的3。
2.
Based on the detailed component and particle size analysis for the original three tail salts through a two-step purification process,the primary purification process were analyzed in detail.
采用青海盐湖工业集团公司三种不同来源的工业尾盐,在对原料盐进行充分的成份分析和粒度分析的基础上,通过二段洗涤流程,对三种不同来源的工业尾盐进行一次精制过程分析。
3.
The first stage was actually the primary purification process,in which most of inorganic ammonium and some total ammine can be removed along with the primary purification process,the second stage was liquid phase oxidation method by sodium hypochlorite,in which inorganic ammonium and total ammine can be further removed.
一段除铵为原有的尾盐一次精制工艺。
2) primary brine refining
一次盐水精制
1.
Summary on innovation of process equipment of primary brine refining;
一次盐水精制工艺装置改造总结
3) second refinement
二次精制
4) One-step precise calculation
一次精确计算
5) First balancing precision
一次平衡精度
1.
First balancing precision of field dynamic balancing system was considered and a model calculating rotor maximum vibration vector and validation experiments were presented.
针对现场动平衡系统一次平衡精度问题,给出极大振动计算模型及实验验证;改进平衡效率计算公式,提出初相点影响系数法并与水平振动、垂直振动、极大振动三种振动测量项的影响系数法进行实验比较;开发相应的转子现场动平衡软件模块,集成到“PMS2000设备预知维修与故障诊断系统”。
6) reactive linear accurate moment
无功一次精确矩
1.
The optimal placement for capacitors is determined by reactive quadric accurate moment and the optimal sizing by reactive linear accurate moment.
针对配电网运行的辐射型结构 ,在配电网无功优化的无功近似矩模型基础上 ,提出了无功精确矩概念 ,根据无功二次精确矩选择最优补偿点 ,无功一次精确矩确定所应投放的优化容量。
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