Biologic oxidation reactor for refractory auric sulfide ore

A biological oxidation and reactor technology, applied in metallurgical reaction equipment and biological fields, can solve the problems that the effect has not been fully confirmed, and achieve the effects of stable bed medium, improved residence time distribution, and wide operating range of flow rate

Inactive Publication Date: 2008-10-15
EAST CHINA UNIV OF SCI & TECH
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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

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  • Biologic oxidation reactor for refractory auric sulfide ore

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Embodiment Construction

[0031] The specific implementation of the reactor for the biological oxidation of refractory gold sulfide ore according to the present invention will be given below in conjunction with the accompanying drawings.

[0032]A new reactor for bio-oxidation of refractory sulfide gold ore, including upper head 2, cylinder body 4, Helmholtz coil 7, three-blade propeller agitator 8, lower head 10, gas distribution device 11, sieve plate 15, and liquid circulation pipeline 23; an air outlet 1 and a manhole 20 are provided on the upper head 2, and a liquid outlet 12 is provided at the bottom of the lower head 10; the sieve plate 15 is located above the three-blade propeller agitator 8, Below the mineral particle outlet 16, the cylinder body 4 is divided into upper and lower parts, the upper part is the magnetically stable reaction zone 21, the lower part is the gas saturation zone 22, and the sieve plate 15 has an opening ratio between 0.4% and 1.4%. The gas-saturated liquid in the gas-s...

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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...

Claims

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Application Information

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IPC IPC(8): C22B3/18
CPCY02P10/20
Inventor 张旭梅艳巧谭文松朱明龙
Owner EAST CHINA UNIV OF SCI & TECH
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