5月13日上午10时,经过两年多建设,由设计院研究设计的本钢最大的两万立方米五号制氧机,正式投产制氧。新建的五号制氧机是本钢“十五”规划重点项目,1999年10月立项,2000年末动工,总投资1.88亿元。该制氧机采用的是目前国际上先进的第六代分子筛净化、增压膨胀机、干氢制氩内压 At 10 o’clock on the May 13, after more than two years of construction, the largest 20,000-cubic-meter oxygen generator at Bengang, which was designed and researched by Design Institute, was officially put into production. The new No. 5 oxygen generator is a key project of the “10th Five-Year Plan” of Bengang Steel and was established in October 1999, starting construction by the end of 2000 with a total investment of 188 million yuan. The oxygen generator is currently used in the international advanced sixth-generation molecular sieve purification, booster expander, dry hydrogen argon pressure