精馏炉 meaning in English

rectifying furnace

The zinc refining furnace ( new jersey furnace ) is today the most important pyrometallurgical method for the production of zinc very high purity , where the impurities is of different boiling point from the zinc
锌精馏炉( newjersey炉)是利用粗锌中其它杂质成分与锌具有不同沸点，而生产高纯锌最主要的火法精炼方法。
But the temperature difference at the vertical direction in combustion chamber in lead column , that is said by operator , is over 60 ? . ( 2 ) according to the experiences in the practice , the second layer air and the second layer gas had a little effect of support burning , and the third air has little effect for combustion , and the power to drawing exhaust gas can only be adjusted in limited range . the problems , it is said above , restricted more advance of some kinds of technology and economy target in spelter refining in new jersey furnace
由于锌精馏炉产量提高，一些问题开始暴露出来： ( 1 )燃烧室?舶要求温度差不超过10 ，而从现场反映的情况来看，燃烧室上、中、下部温度差已超过60 ； ( 2 )在生产实践中，发现燃烧室第二层空气、第二层煤气作用甚小，第三层空气失去助燃作用，废气出口的抽力可调范围有限；以上这些问题在客观上制约了精馏塔在锌精炼中各项技术经济指标的进一步提高。