Biologic oxidation reactor for refractory auric sulfide ore

Abstract

The invention discloses a reactor used for biological oxidation of refractory gold sulfide. The reactor comprises an upper end enclosure, a cylinder body, a cooling jacket, Helmholtz coils, a stirrer, a lower end enclosure, a gas distributor, a sieve plate and liquid recirculation pipes, wherein the sieve plate divides the cylinder body into a magnetic stabilization reaction region and a gas saturation region; the gas saturation region is provided with the stirrer with three-bladed propeller, an aeration pipe and the gas distributor; the upper end enclosure and the lower end enclosure are provided with the liquid recirculation pipes arranged outside the cylinder body; each liquid recirculation pipe is provided with a microbial liquid culture medium filler opening, a valve and a fluid pump; and the Helmholtz coils are one-dimensional Helmholtz coils are arranged outside the cooling jacket; and the axial direction magnetic field energy of the Helmholtz coils which can adjust intension has magnetic stabilization effect to mineral particles with magnetic sensitivity in the magnetic stabilization reaction region. The reactor used for biological oxidation of refractory gold sulfide has the advantages of capable of intensifying mass transferring and heat transferring, reducing energy consumption, optimizing microbial growing environment, improving mineral oxidation rate and realizing continuous operation.

Description

【Technical field】 [0001] The invention relates to the technical field of biological and metallurgical reaction equipment, in particular to a reactor for biological oxidation of refractory gold sulfide ore which combines high-efficiency stirred tank reactor and magnetically stable bed technology. 【Background technique】 [0002] The technology of pretreatment of difficult-to-treat gold mines by biotechnology with microorganisms as the main body has developed rapidly in recent years and has been successfully applied in industry. It has become a new generation of pretreatment technology for high-grade sulfide ores. The development and utilization of mineral resources has opened up a new direction. [0003] my country's sulfide mineral resources are characterized by "poor" and "miscellaneous", and the development of this resource will easily affect the ecological environment. It is necessary to find corresponding new technologies that are conducive to resource development, enviro...

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Problems solved by technology

Other bio-oxidation leaching reactors that are still in the laboratory or semi-industrial test state include: long trough blowing bioreactor, low energy consumption bioreactor, inclined reactor (DIP), rotary drum bioreactor ( Biorotor), dense bed bioreactors, etc., their effects have not been fully proven

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