A kind of treatment method of washing tailings of bauxite mine
A treatment method and tailings technology, which is applied in the field of tailings disposal in mining production, can solve problems such as environmental pollution accidents, tailings slurry leakage, etc., increase stockpiling density, eliminate hidden dangers of environmental pollution, and prevent tailings leakage The effect of the accident
Active Publication Date: 2016-08-17
GUIYANG AL-MG DESIGN & RES INST +1
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Problems solved by technology
[0005] The purpose of the present invention is to provide a treatment method for washing and dressing tailings of bauxite mines, so as to solve the problem that the washing and washing tailings of existing mines generally adopt wet storage, but the karst in karst depressions is very developed, and the tailings slurry leaks. The possibility of large, prone to environmental pollution accidents
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[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0020] combine figure 1 , the embodiment of the present invention provides a treatment method for bauxite mine washing tailings, comprising:
[0021] Select depression 1, correct and level the bottom and slope of depression 1, and then fill the karst development point 11 in depression 1 with block stones in layers to prevent leakage through karst development point 11. Lay geotextile 6, the specification of geotextile 6 is 400~600g / m 2 . ;
[0022] The tailings slurry is dehydrated by the dehydration device 2, and the dehydrated solidified tailings are transported to the bottom of the depression 1 by the transport device 3;
[0023] Flatten and dry the solidified tailings discharged into depression 1 in layers (the flattening and rolling process can be realized...
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The invention discloses a processing method for tailings after ore selecting and washing in a mine. The purpose is to solve the problems that wet method piling is generally adopted for selecting the tailings by washing in the mine, karst in a karst depression is very developed, the possibility of tailing slurry leakage is high, and environment pollution accidents are prone to occurring. The processing method includes the following steps that the depression is selected, tailing slurry is dehydrated through a dehydrating device, and the solidified tailings after dehydration are conveyed to the bottom of the depression through a conveying device; the solidified tailings at the bottom of the depression are spread out flat and dried, after drying, the solidified tailings are rolled, and the rolled solidified tailings form a leakage prevention layer; a leakage prevention layer is continuously filled with solidified tailings, and the solidified tailings are spread out and rolled until the depression is filled with the tailings. The processing method is used for processing the tailings in the mine after ore selecting and washing.
Description
technical field [0001] The invention relates to a method for treating mine washing tailings, and belongs to the technical field of tailings disposal in mining production. Background technique [0002] Alumina plants are generally equipped with mines. Every 1 ton of bauxite produced by bauxite mines will produce about 1.5 to 2.0 tons of tailings. The proper disposal of tailings generated after mine washing and beneficiation is related to the sustainable development of enterprises. major issues. Because bauxite washing tailings are colloidal particles with fine particle size and high viscosity, large specific surface area, high degree of dispersion, and difficult to settle and dehydrate, karst depressions have always been chosen for washing tailings of accumulation-type bauxite mines. The construction of mud discharge storage for wet storage has disadvantages such as large area, high investment in construction of storage, low utilization rate of storage capacity, and great sa...
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IPC IPC(8): B09B3/00E02D31/00E02D31/06
Inventor 李明阳谢锋胡禹志袁大钧陈善应杨小全王胜安
Owner GUIYANG AL-MG DESIGN & RES INST