Coarse-size separation technique

A process and coarse-grained technology, which is applied in the field of coarse-grained waste disposal, can solve problems such as large-scale equipment, and achieve the effects of reducing the amount of pulp, stable sedimentation layer, and long distance.

Inactive Publication Date: 2009-07-08
CINF ENG CO LTD
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Problems solved by technology

And the equipment is large, industrialization and the materials of easy-wearing and wearing parts still need to be improved

Method used

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  • Coarse-size separation technique

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Embodiment Construction

[0014] Such as figure 1 As shown, the raw ore 1 with a tin Sn grade of 0.75% is crushed and the mineral particle size is less than or equal to 20 mm, and the linear vibrating screen 2 is pre-wet screened to separate fine-grained products with a particle size of 3 mm or less and a particle size of 3 mm. Coarse-grained products of -20mm; coarse-grained products with a particle size of 3-20mm enter the jigging equipment 3, and according to the mineral composition and kangbu conditions, the jigging equipment 3 separates light products, namely waste rocks and heavy products, and the light products pass 0.63 The static sieve 4 and the linear vibrating screen 5 with mm sieves remove moisture, and are transported by the belt conveyor to the waste rock yard 6 for storage, the waste rock grade is 0.1%, and the yield is 30-35%; the static sieve 4 and the linear vibrating screen 5 The removed water enters the slant plate thickener 10 for reuse; the heavy products of the jig equipment 3 ar...

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Abstract

The invention discloses a rough particle separation process comprising the following steps: (1) after the particle size of a pulverized greenore achieves 20mm, pulverized ores are processed by the operation of wet prescreening to separate fine particle products which are smaller than or are equal to 3 mm and 3-20mm rough particle products, and the fine particle products which are smaller than or are equal to 3 mm are dehydrated to be directly led into the next step of ore benefication; (2) the 3-20mm rough particle products are led into jigging equipment; according to the composition and the distribution of the ores, light products, i.e. waste rocks, and heavy products are separated by the jigging equipment, and the heavy products are discharged from the bottom of the jigging equipment; and (3) the heavy products discharged from the bottom of the jigging equipment are dehydrated by dehydration plant and then are led into the next step of ore benefication. The invention adopts a BATAC wind pulse jigger as the jigging equipment. The rough particle separation process can greatly improve the selection level of the ores, and has the advantages of simple technological procedure, easy engineering, environmental protection and energy saving.

Description

Technical field: [0001] The invention relates to the field of nonferrous metal processing, in particular to a coarse-grain throwing process for greatly improving the grade of selected ores. technical background: [0002] With the continuous development of my country's mineral resources, mineral resources continue to deplete. From the composition analysis of the investment and production cost ratio of the beneficiation process, the investment and energy consumption ratio of the crushing stage accounts for 16-37%, and the remaining stages account for 63-84%. How to throw away part of the waste rock in advance and improve the selected grade of the ore is of great significance for saving energy and being friendly to the environment. [0003] The test results of the heavy liquid with a particle size of 20-0.074mm in the raw ore show that the yield of light products (mainly gangue) is 56.36% (of which the particle size of 15-0.074mm accounts for 49.87%). The grades of tin, lead ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03B5/20
Inventor 黄光洪马士强彭雪清陈正军
Owner CINF ENG CO LTD
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