Process for recovering flotation tailings of magnetite by adopting strong magnetic-anionic reverse flotation of hematite
A reverse flotation and anion technology, applied in recycling technology, mechanical material recovery, solid separation, etc., to achieve the effect of reducing metal loss
Active Publication Date: 2014-03-12
ANSTEEL GRP MINING CO LTD
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Problems solved by technology
[0006] At present, there is no report on feeding the flotation tailings in the magnetite cation reverse flotation process into the strong magnetic anion reverse flotation process
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[0021] The specific implementation of the present invention will be described in detail below in conjunction with the examples.
[0022] Such as figure 2 , 3 Shown, adopt hematite strong magnetic-anion reverse flotation recovery magnetite flotation tailings process of the present invention, comprise magnetite cation reverse flotation process flow and hematite strong magnetic-anion reverse flotation flow process, It is characterized in that: between the disc magnetic separator 1 of the magnetite cation reverse flotation process flow and the hematite strong magnetic-anion reverse flotation process, a drainage pipe 2 is provided obliquely through the bridge frame 3, and one end of the drainage pipe is It is connected to the bottom opening at the end of the chute of the disc magnetic separator 1 in the magnetite cation reverse flotation process, and the other end is connected to the center plate 4 of the strong magnetic pre-thickener in the strong magnetic-anion reverse flotatio...
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The invention relates to a process for recovering flotation tailings of magnetite by adopting strong magnetic-anionic reverse flotation of hematite. The process is characterized in that the process comprises the following steps: a flow guide pipeline is obliquely arranged between a disc type magnetic separator of a cationic reverse flotation process flow of the magnetite and a strong magnetic-anionic reverse flotation flow, wherein one end of the flow guide pipeline is connected with a bottom opening in the rear end of a chute of the disc type magnetic separator in the cationic reverse flotation process flow of the magnetite, and the other end of the flow guide pipeline is communicated with a central disc of a strong magnetic front concentrator in the strong magnetic-anionic reverse flotation flow. The process has the advantages that when the flotation tailings in the magnetite flotation process flow enters the strong magnetic-anionic reverse flotation process of the hematite to be mixed with original ore pulp and then concentrated, a system is not influenced, the production is conducted steadily and smoothly, abnormal fluctuation is avoided, the grade of the separated synthetic tailings is 8 to 10 percent, the grade of strong magnetic concentrate is 45 to 50 percent, and the grade of final flotation concentrate is above 68 percent. Through the adoption of the process, the flotation tailings in the magnetite flotation process flow can be reduced from originally 15 percent to 10 percent, so as to reduce metal losses.
Description
technical field [0001] The invention relates to the technical field of ore dressing, in particular to a process for recovering magnetite flotation tailings by using hematite strong magnetism-anion reverse flotation. Background technique [0002] At present, the iron ores used for processing in the field of flotation technology are mainly magnetite and hematite. Among them, anion reverse flotation is often used in the process of processing hematite. In the process of flotation treatment of hematite, it is usually combined with strong magnetic technology, which can obtain higher concentrate grade and has a good effect on improving metal recovery rate. [0003] However, in the process of magnetite flotation, after the pulp is separated by cation reverse flotation and magnetic separation, the flotation tailings, that is, the tailings of the disc magnetic separator, is as high as about 15%. In the original process, the flotation tailings are directly fed into the tailings thick...
Claims
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IPC IPC(8): B03B9/06
CPCY02W30/52
Inventor 盖壮周健孙景丽
Owner ANSTEEL GRP MINING CO LTD