Silver-separating apparatus of silver-containing anode slime

Abstract

The invention discloses a silver-separating apparatus of silver-containing anode slime. The apparatus is composed of a reaction vessel (1) and a separating tank (2); the reaction vessel (1) is a sealed glass fiber reinforced plastic cylinder, wherein the lowest part of the reaction vessel (1) is in a spherical crown shape, and is positioned higher than the highest part of the separating tank (2); the separating tank (2) is provided with an overflow port (3) on a side of the upper part; a double-layered stirrer (5) of a stirring device (4) extends from right above the reaction vessel (1) into the reaction vessel (1); a long mandrel (12) is sleeved in a stirrer main shaft (11) of the stirring device, wherein the long mandrel upper part which surpasses the stirrer main shaft (11) is connected to a large driven gear (13), and the long mandrel lower part which surpasses the stirrer main shaft (11) is connected to a material scraper (14); the stirrer main shaft (11) is transmissively connected by using a belt; a small driving dear on a belt pulley (15) is engaged with the large driven gear (13) through a large-small gear pair (16); a feeding port (6) is arranged on a side of the upper part of the reaction vessel (1); a discharging port (7) is arranged on the center of the bottom of the reaction vessel (1); and the discharging port is connected to the separating tank (2) by using a pipe (9) through a controlling valve (8). According to the invention, the reaction process and the separation process are integrated; the entire operation process is finished in a sealed environment; no acid mist is produced; and the operation environment is good. Therefore, the apparatus is beneficial for the health of operators.

Description

Technical field [0001] The present invention is a silver -separated device containing silver anatomy, which belongs to the wet smelting device of precious metals. Background technique [0002] The treatment of silver anode mud is usually adding nitric acid separation silver to the reactive container, and then transferred the separation tank to precipitate silver nitrate. This equipment of the existing technology is an open operation method, which produces a large acid mist, resulting in poor operating environment, which is not conducive to operation.Workers' health.On the other hand, the bottom of the existing technology reaction container equipment is cylindrical, and the silver anode mud material is performed in the middle of the mixer in the reaction process of the mixing process."Dead corners" cause uneven reactions of the stirring, which seriously affects the separation efficiency. [0003] On August 10, 2011, China Practical New Patent Authorized Notice Number CN 201924057 ...

AI Technical Summary

Problems solved by technology

Although this structure is applied to the stirring of silver-containing anode slime materials, although the problem of uneven and sufficient stirring reaction is solved, in order to facilitate the transfer of reaction materials, a transfer pump must be installed between the tanks. Due to the emptying requirements of the transfer pump , the tank must be equipped with a pressure relief device, which will affect the sealing of the system and easily cause acid mist leakage to pollute the environment. At the same time, the structure of the equipment is also complicated. Using three stirring devices will consume a lot of power.

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