河南省济原市钢铁厂是以炼铁为主的中型企业，年产量30万吨，年用水量50O万吨左右．该厂十分重视节水技改工作，先后投入巨资，修过了多项节水工程，节水效果十分显著．该厂ig85年～1990年间，就相继投资20O多万元．建成总容积为94tim’的循环水池三座，将炼铁炉冷却水降温再利 The iron and steel plant in Jiyuan City, Henan Province is a medium-sized enterprise mainly engaged in ironmaking. The annual output is 300,000 tons and the annual water consumption is about 5.0 million tons. The factory attaches great importance to water-saving technological transformation work, has invested heavily, repaired a number of water-saving projects, the water-saving effect is very significant. The factory ig85 to 1990, has invested more than 20O million. Three recycling pools with a total capacity of 94tim’ were built to cool down the cooling water in the ironmaking furnace.