3 technology results of changgang passed appraising
of technology progress prize item of changzhi

    in november 29, 2003, 3 technology results, “bf pulverized coal injection engineering ” 、“spread and application of oxygen enrichment”of iron-making plant and “reconstructing of dust cleaning water of converter” of steel-making plant, passed the appraising of technology progress prize item organized by changzhi technology bureau.

     vice-director of changzhi technology bureau , wang yuqin、section chief of technology results section, zhang yuqin and 9 experts from changgang、taigang、tianji group、zhangze power co. 、changzhi gas co. appraised 3 items.

     3 items changang reported is to solve key problems that restrict production. economic and social benefits are all very obvious. compared with same industries,“bf pulverized coal injection engineering ” has many advantages that are more simple technics 、better adaption to raw coal 、higher system safety 、lower electric consuming 、more steady running 、more convenient. it can lower 94 million rmb production cost, oxygen enrichment technology has achieved advanced level inside country in types of oxygen enrichment and flow control of oxygen. annual net benefit is 2.98 million rmb; reconstructing engineering of dust cleaning water of converter makes production water used for steel-making realize closed circulating, ends the history of outside letting of polluted water and save 4.75 million tons water from reservoir.
technicians from changgang steel-making plant、iron-making plant reported 3 technology results and answered experts’ quiz in detail.

     after listening to report and explanation and investigating on the spot experts attending agreed on that the results have advanced technics technology 、high practical value、obvious economic and social benefits. finally they approved to pass.