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随着环境保护的更高要求,冶金工厂对冶炼过程中烟尘的二次控制已提到十分重要的地位。西德GHH—STERKRADE公司,对冶炼过程中烟尘的二次控制,提出二种措施。一是在烟尘发生源设置上吸式或侧吸式吸尘罩。为了在吸尘罩口保持足够的吸捕速度和捕捉效果,就要抽吸大量的过剩空气,因此,消耗风量相当可观。例如:1台350吨转炉,当兑铁水时,需要900,000米~3/时的吸风量,耗电量为1700千瓦。一是设置密闭室,即在生产工艺操作上严格控制二次烟尘的扩散。
With the higher requirements of environmental protection, the secondary control of the smelting process smelting metallurgical plant has been mentioned very important position. West Germany GHH-STERKRADE company, smelting process of dust control, proposed two measures. First, set the source of soot on suction or suction side suction hood. In order to maintain adequate suction speed in the mouth of the suction hood and capture the effect, it is necessary to suck a lot of excess air, so the amount of air consumption is considerable. For example: a 350-ton converter, when the exchange of hot metal, need 900,000 m ~ 3 / hour suction, power consumption of 1700 kilowatts. First, set up airtight chamber, that is strictly controlled in the production process operation of the proliferation of secondary smoke.