Gold ore tailing multi-stage screening and gradient magnetic separation resource utilization system and method
A gold ore tailings and resource recovery technology, applied in chemical instruments and methods, high-gradient magnetic separators, magnetic separation, etc., can solve extraction difficulties, high grade requirements for valuable components, and magnetic separation concentrate recovery rate Low-level problems, to achieve the effect of avoiding environmental pollution, realizing resource utilization, and simple process system
Pending Publication Date: 2021-12-31
烟台市瑞凯环保材料有限公司 +2
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Problems solved by technology
[0004]
In view of the above analysis, the present invention aims to provide a gold ore tailings multi-stage screening and cascade magnetic separation resource utilization system and method to solve the problem of valuable reorganization of gold ore tailings through flotation in the prior art. It is difficult to extract the components, the grade requirements of the valuable components in the gold ore tailings are high, and the recovery rate of the magnetic separation concentrate is low.
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Embodiment 1
[0070] This embodiment provides a resource utilization method of multi-stage screening and cascade magnetic separation of gold mine tailings, which specifically includes the following process:
[0071] Such as figure 1 As shown, after being crushed by the crusher, the raw gold ore enters the first rigid-flexible coupling elastic screen surface vibrating screen for classification, the coarse-grained ore returns to the crusher, and the fine-grained ore passes through the ball mill and the second rigid-flexible coupling elastic screen surface vibrating screen (or use high-frequency sieve) to form a closed-circuit grinding, and the grinding product enters the pulp preprocessor, adding activator copper sulfate 0.5kg / (t raw ore), collector xanthate 70g / (t raw ore) and foaming agent Pine oil 45g / (t raw ore), after high-speed shearing and pulping, enters the flotation machine for flotation to produce flotation concentrate and flotation tailings.
[0072] Then, the flotation tailings ...
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The invention relates to a gold ore tailing multi-stage screening and gradient magnetic separation resource utilization system and method, belongs to the technical field of gold ore tailing recovery, and solves the problem of low recovery rate of magnetic concentrate in the prior art. The system comprises a raw gold ore pretreatment unit, a flotation unit and a gold ore tailing treatment unit which are connected in sequence, wherein the raw ore pretreatment unit is used for crushing and grading raw gold ore; the flotation unit is used for flotation of gold concentrate and flotation tailings; the gold ore tailing treatment unit comprises a third rigid-flexible coupling elastic screen surface vibrating screen, a first high-gradient magnetic separator, a fourth rigid-flexible coupling elastic screen surface vibrating screen, a fifth rigid-flexible coupling elastic screen surface vibrating screen and a first filter which are connected in sequence; the system further comprises a concentration cyclone, a sixth rigid-flexible coupling elastic screen surface vibrating screen and a second filter which are connected in sequence; and the concentration cyclone is connected with the first high-gradient magnetic separator. According to the system and the method, resource utilization of the gold ore tailings is achieved, the production cost is low, and economic benefits and social benefits are good.
Description
technical field [0001] The invention relates to the technical field of comprehensive utilization of mineral resources, in particular to a resource utilization system and method for multi-stage screening and cascade magnetic separation of gold mine tailings. Background technique [0002] Mineral resources are the guarantee for the development of the national economy. As an important mineral resource, gold mine is characterized by complex components of associated minerals. Flotation is the primary technology to achieve metal separation and enrichment. This process produces a large amount of flotation tailings. The traditional tailings treatment technology is tailings dam (reservoir) storage. Tailings dams (reservoirs) occupy a large area and require high maintenance costs, and flotation gold mine tailings contain a large amount of harmful substances such as chemical reagents and heavy metals, which will lead to soil erosion, water pollution, river silting and ecological enviro...
Claims
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Login to View More IPC IPC(8): B03B7/00B03C1/30B03C1/025
CPCB03B7/00B03C1/30B03C1/025
Inventor 谌贻东赵跃民段晨龙江海深石巍潘淼于世杰
Owner 烟台市瑞凯环保材料有限公司