Rectangular vertical vacuum furnace for treating arsenic-containing gold mine

Abstract

A rectangular vertical vacuum furnace for treating arsenic-containing gold mine. One end of a spiral conveyer is provided with a high calcining material level automatic control device and a low calcining material level automatic control device. A feeding area is provided with a spiral feeding extension machine; a feeding outlet of the spiral feeding extension machine is provided with a feeding amount control mechanism and a splitter; a blanking channel below the splitter comprises a plurality of guide units; and a guide unit comprises guide tilted plate bracket strips and guide tilted plates installed on the guide tilted plate bracket strips, which are fixed on a furnace wall. The guide tilted plates comprise a first guide tilted plate, a second guide tilted plate, a third guide tilted plate and a fourth guide tilted plate; the first guide tilted plate and the second guide tilted plate are connected into a guide rack in an inverted ''V'' shape; the third guide tilted plate and the fourth guide tilted plate are in the shape of an inverted Chinese character ''eight'' and arranged under the guide rack in inverted ''V'' shape; and a second tilted plate guide area is in connection with an arsenic vapor insulation rising transport channel. The furnace provided by the invention can accelerate the volatilization of arsenic, and improve effect of calcining arsenic removal.

Description

technical field [0001] The invention relates to the technical field of non-ferrous metal pyrometallurgy, in particular to a rectangular vertical vacuum furnace for vacuum thermal decomposition and arsenic removal of arsenic-containing gold ore. Background technique [0002] Chinese patent 201210338370.7 discloses a vacuum rotary kiln suitable for dehydration and desulfurization, including a feeding device system, a rotary kiln device system, a discharge device system, a heating device system, and a smoke treatment and recovery device system. The rotary kiln device system includes a kiln head Cover, kiln tail cover and rotary kiln shell, the rotary kiln shell is supported by supporting wheels, rotary kiln transmission gear and kiln body dynamic sealing device are installed on the rotary kiln shell, hot air pipe, spiral guide Material plate and "T" type lifting plate, a "T" type lifting plate is installed between every two spiral material guide plates; hot air pipe includes ki...

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Problems solved by technology

When the device is used for arsenic removal, the vo

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