An integrated device and extraction method for arsenic recovery from non-ferrous smelting flue gas

Abstract

The invention provides an integrated device for recovering arsenic from non-ferrous smelting flue gas and an extraction method. The device includes a fan connected in sequence, a high-efficiency dust collector, an arsenic analysis and arsenic removal device, and a rapid cooling arsenic collection device. The arsenic analysis and arsenic removal device is equipped with The turntable is connected with the driving device through the transmission shaft. The turntable is provided with a through hole for passing the flue gas. The turntable is equipped with an interception pipe for absorbing flue gas dust and is used to divide the arsenic analysis and arsenic removal device into an arsenic analysis area and an arsenic removal area. The upper and lower ends of the arsenic analysis area, the arsenic removal area and the injection area are respectively provided with an upper connection port and a lower connection port, and the lower connection port of the arsenic analysis area is connected with a high-efficiency dust collector, and the arsenic analysis area The upper connection port of the arsenic removal area is connected with the upper connection port of the blowing area, the arsenic analysis area is also connected with a cooling device, the arsenic removal area is connected with a heating device, and the upper connection port of the arsenic removal area is connected with a quenching arsenic collection device. The invention can continuously recover the arsenic and improve the purity of the recovered finished arsenic.

Description

technical field [0001] The invention relates to the fields of metallurgy and environmental protection, in particular to an integrated device for recovering arsenic from non-ferrous smelting flue gas and an extraction method. Background technique [0002] High-arsenic polymetallic materials are important raw materials for non-ferrous metal smelting. When the mass percentage of arsenic is ≥ 2%, it is called high-arsenic polymetallic materials in the industry. In recent years, with the shortage of resources, comprehensive recovery of high-arsenic polymetallic materials has become a trend. When treating high-arsenic materials by fire method, the arsenic in the materials mainly exists in the form of free oxides, and a carbonaceous reducing agent is added to the materials. 2 o 5 Revert to As 2 o 3 , arsenate is reduced to arsenite, arsenite is reduced to metal arsenide, and finally As 2 o 3 form is volatile. [0003] There are two methods for arsenic flue gas treatment, wet...

AI Technical Summary

Problems solved by technology

But the present invention fails to provide a kind of use device for this kind of method, fails to deal with the dust in flue gas at the same time, is unfavorable for improving the purity of the arsenic that recovers

Images