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Comprehensive tailing utilizing technology

A technology of tailings and technology, which is applied in the field of tailings comprehensive utilization technology, can solve the problems of huge tailings pond construction, maintenance, management, and operation costs, so as to promote the sustainable development of mines, alleviate safety and environmental problems, maintain and The effect of improving the ecological environment

Active Publication Date: 2013-09-18
NANJING MEISHAN METALLURGY DEV
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Problems solved by technology

In addition, the construction, maintenance, management, and operation of tailings ponds cost a lot

Method used

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  • Comprehensive tailing utilizing technology

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Embodiment Construction

[0018] The technical solutions provided by the present invention will be described in detail below in conjunction with specific examples. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0019] like figure 1 A kind of tailing comprehensive utilization technology described, comprises the following steps:

[0020] a. Concentrate the tailings after iron ore beneficiation through a concentrator. The concentration of the tailings is 26.14%, and the total iron content of the tailings is 19.89%. After concentration and concentration, the concentration is 26.66%, and the total iron content is 18.97%. .

[0021] b. Send the concentrated tailings to the high-frequency fine sieve. The model of the high-frequency fine sieve is 2FMVSm2030, the size of the sieve hole is 0.3×0.6, and the coarse sand on the sieve is separated, and the concentration is 25.76%, a...

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Abstract

The invention discloses a comprehensive tailing utilizing technology. The comprehensive tailing utilizing technology comprises the following steps: (a) concentrating tailings obtained after separation of iron ore by using a concentrator; (b) sending the concentrated tailing to a high-frequency fine screen, and separating out coarse sand above the screen; (c) collecting a material passing through the high-frequency fine screen, and sensing the material to a swirler for grading the material to obtain effusion and grit; (d) sending the effusion obtained in the step (c) into the concentrator for concentrating the effusion, and sending the obtained product into a tailing warehouse, and using the obtained effusion as recycled water which enters a production system; and (e) sending the grit obtained in the step (c) to a ceramic filtering dewatering machine for dewatering the grit to obtain an iron correcting agent and filtrate. Through the comprehensive tailing utilization, secondary resources are effectively developed and utilized, so that the utilization rate of the tailing can be improved, discharge of the tailing can be reduced, the problems of safety and environment protection of tailing piling are alleviated; therefore, the comprehensive tailing utilizing technology has a great significance in maintaining and improving the ecological environment, improving the utilization rate of mineral resources and promoting the sustainable development of a mine.

Description

technical field [0001] The invention relates to the field of comprehensive utilization of tailings in metallurgical mines, in particular to a comprehensive utilization process of tailings. Background technique [0002] Tailings have the characteristics of "occupying land, wasting resources, polluting the environment, and potential safety hazards", so the comprehensive utilization of tailings has become a major issue in the development of mining projects in my country. At present, the comprehensive utilization rate of tailings in my country is only 3%, which is lower than that of foreign countries. The comprehensive utilization rate of 60% is far from the advanced level. In addition, the construction, maintenance, management, and operation of tailings ponds cost a lot. According to statistics, the infrastructure cost of metallurgical mine tailings pond in my country is 1-3 yuan per ton, and the production and operation management fee is 3-5 yuan. Utilization is imminent....

Claims

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Application Information

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IPC IPC(8): B03B7/00
Inventor 甘茂武刘安平史广全张祖刚于发徐望华燕海东曹沛萍
Owner NANJING MEISHAN METALLURGY DEV
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