Technical transformation of purification dilute acid filtration unit in copper smelting flue gas acid production system
In response to the problem of poor filtration efficiency of dilute acid,the purification process of Zhongyuan Gold Smelter adopts high-efficiency suspended filler filters to replace the original inclined plate settling tank,and carries out technical transformation on the filtration of purified dilute acid.After renovation,the dilute acid filtration device operates smoothly and reliably,with low operating costs.The solid content(ρ)of filtered dilute acid reduces from 1 000-2 000 mg/L to below 100 mg/L,which is beneficial for subsequent production control.At the same time,the recovery rate of acid sludge has been effectively improved,with an additional recovery of about 350 t/a of acid sludge,which can increase the economic benefits of the enterprise by more than 5 million yuan per year,and the economic benefits are significant.
copper smeltingflue gas purificationdilute acidfiltrationtechnical transformation
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