论文部分内容阅读
电鋁槽生产出来的原铝,按照旧有的生产規程,必須往液体鋁中通入氯气澄清后,以去掉其中悬浮的氧化鋁和电解質杂质,再例入混合爐而后铸錠。这种鑄造过程不仅流程上复杂,而且液体鋁中通入氯气后,由于液体鋁大量与氯气发生化学反应,生成氯化鋁而揮发损失掉。一般一吨鋁液氯化后至少要損失2公斤。若以年产5万吨铝的厂計算,則每年损失原鋁达100吨,这是个可观的数字。又因为氯气有毒,所以氯化裝置还必须有特殊的设备以防止工人中毒。
According to the old production rules, the primary aluminum produced by the electric aluminum trough must be clarified by passing chlorine into the liquid aluminum to remove the alumina and electrolyte impurities suspended therein, and then into the mixing furnace and then ingot. This casting process is not only complicated in process but also leads to the loss of volatilization due to the chemical reaction of a large amount of liquid aluminum with chlorine gas after the introduction of chlorine gas into the liquid aluminum. Generally a ton of liquid aluminum after the loss of at least 2 kg. If the annual output of 50,000 tons of aluminum plant calculations, the annual loss of primary aluminum up to 100 tons, this is a considerable figure. Because chlorine is toxic, chlorination plants must also have special equipment to prevent worker poisoning.