Multifunctional automatic control column leaching experimental facility

Abstract

The invention discloses a multifunctional automatic control column leaching experimental facility, belonging to the field of leaching mining. The experimental facility mainly comprises a liquid circulation system, a water circulation system, an air circulation system, an automatic control system and a data collection system. The liquid circulation system is composed of a reaction column, a high-level tank and a liquid receiving tank; the water circulation system is composed of a hot water tank, a solenoid valve, a liquid receiving tank jacket, a reaction column jacket and a high-level tank jacket; the air circulation system is composed of an air compressor, an air flowmeter and a control valve; the automatic control system is used for automatically regulating and controlling the temperature of the leaching system, oxygen solubility and solution flowing; the data collection system can be used for automatically collecting and storing the solution pH value, the oxygen solubility, electric potential, the temperature and other parameters in real time. The experimental facility can be used for performing indoor simulation experiments and semi-industrial scale pilot plant experiments according to heap-leaching field conditions and actual size of mineral particles, effectively simulating the multiphase and multilevel seepage state of ore bulk and a microbiological leaching and biochemical process, and providing basic data for heap-leaching production practice and technological parameter optimization.

Description

technical field [0001] The invention belongs to the field of leaching mining, in particular to a multifunctional automatic control leaching test device. Background technique [0002] Solution mining is a mining method that uses certain chemical solvents and microorganisms to selectively dissolve, leach and recover useful components in ore deposits, ores or waste rocks. Compared with traditional mining methods, solution mining is the most prominent The characteristic is that it can effectively recover small and medium-sized ore deposit resources, complex and refractory ores, low-grade ores, and even deal with off-surface ores, residual ores, tailings and waste rocks. For example, the copper ore treated by heap leaching in the United States has low grades to 0.04%. In addition, the leaching mining process is low in production cost and environmentally friendly, and is known as a green mining technology for metal mines. At present, 25% of the world's copper and 20% of uranium c...

AI Technical Summary

Problems solved by technology

[0003] The heap leaching system is a complex multi-phase multi-field coexistence and interaction system. For a long time, researchers at home and abroad have generally regarded the leached ore heap and ore body as a "black box", focusing on the chemical composition and concentration of the inflow and outflow solutions, etc. Changes in macroscopic parameters, lack of comprehensive test equipment for simulating the heap leaching process, and no in-depth research on the interaction process of multiphase media in the leaching system

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