Suspension Composite Live Electric Separator and Its Electric Separator Method

A composite electrification and electric separator technology, applied in chemical instruments and methods, electrostatic effect separation, solid separation, etc., can solve the problems of poor separation effect, particle agglomeration, environmental pollution, etc., and achieve good separation effect and concentrate. The effect of high grade and high sorting efficiency

Active Publication Date: 2017-02-15
CHENGDU LEEJUN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the beneficiation of non-ferrous ores is mainly based on wet flotation. To complete the flotation process, various beneficiation agents are consumed. The remaining chemicals in the tailings will cause huge environmental pollution. At the same time, wet beneficiation will inevitably be accompanied by the construction of tailings ponds. and maintenance, poses a huge security risk
Electric separation has a history of more than 100 years, but traditional electric separation machines include drum electric separation machines, rotary electric separation machines, rotary friction electric separation machines, etc. These electric separation machines are charged first and then electric separation. Dense phase feeding, serious agglomeration and bonding between particles, poor sorting effect

Method used

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  • Suspension Composite Live Electric Separator and Its Electric Separator Method
  • Suspension Composite Live Electric Separator and Its Electric Separator Method

Examples

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Effect test

Embodiment 1

[0033] A molybdenum-copper mine in Inner Mongolia, the useful mineral is MoS 2 and CuFeS 2 Associated sulfide minerals and FeS 2 , The gangue minerals are mainly quartz and feldspar, the raw ore Mo grade is 0.12%, and the Cu grade is 0.09%. The ore particle size is -0.2mm accounting for 90%, -0.074mm accounting for 65%, and the moisture content is less than 0.5%. Sorting conditions: the distance between the two high-voltage electrode plates is 500mm, the voltage between the high-voltage electrode plates is 150kV, the voltage of the metal charged rod is 100kV, and the wind speed of the suspended air inlet of the electric separator is 12m / s. Material concentration 0.5kg / m 3 The friction channel is made of stainless steel plate, the friction channel is Z-shaped channel, and the above-mentioned electric separator and electric separation method are used to separate and obtain two kinds of products, medium ore and tailings, wherein the medium ore yield is 10.27%, and the Mo grade ...

Embodiment 2

[0035] A vanadium-titanium magnetite in Panzhihua, tailings TiO after weak magnetic separation 2 Grade 2.51%, S grade 1.13%, particle size -0.2mm accounts for 80%, -0.074mm accounts for 50%, moisture is less than 0.5%, useful minerals are mainly ilmenite and rutile densely symbiotic with ilmenite, and some pyrite. The gangue minerals are mainly silicate minerals such as feldspar, ordinary pyroxene, titanite and titanite. Sorting conditions: the distance between the two high-voltage electrode plates is 50mm, the voltage between the high-voltage electrode plates is 30kV; the wind speed of the suspended air inlet in the sorting area is 0.7m / s, and the concentration of the material is 0.2kg / m 3The friction channel is made of quartz plate, and the friction channel is a clapboard-type channel, and the above-mentioned electric separator and the electric separation method are used to separate and obtain three kinds of products of sulfur medium ore, titanium medium ore and tailings, w...

Embodiment 3

[0037] With the titanium middle ore in embodiment 2, TiO 2 Grade 21.54%, carry out the re-selection of the electric separation method once, the separation conditions: the distance between the two high-voltage electrode plates is 900mm, the voltage between the high-voltage electrode plates is 280kV, the voltage of the metal charged rod is 180kV, and the electric The wind speed of the suspended air inlet of the selection machine is 27m / s, and the concentration of the material is 0.9kg / m 3 ; The friction channel is made of rubber plate, and the friction channel is an S-shaped channel. Use the above-mentioned electric separator and electric separation method to separate and obtain titanium concentrate and titanium tailings two products, titanium concentrate TiO 2 The grade is 47.17%, the yield is 34.11%, and the recovery rate is 74.7%. The tailings TiO2 grade is 8.27%, the yield is 65.89%, and the recovery rate is 25.3%.

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Abstract

The invention discloses a suspended composite electrified electrostatic separator and an electrostatic separation method. The suspended composite electrified electrostatic separator comprises a shell, wherein two electrode plates with different electrodes are correspondingly arranged on the two sides in the shell; an electric field is formed between the two electrode plates; a friction channel in the vertical direction is arranged in the electric field; multiple discharge holes are formed in the top end of the friction channel; a suspended air inlet is formed in the shell at the bottom end of the friction channel and is connected with a draught fan by virtue of an air channel; an ore feed hole is formed in the sidewall of the shell which is above the suspended air inlet. Materials are fed into the electrostatic separator by virtue of the ore feed hole, the suspended air inlet conveys airflow upwards, the materials are taken into the friction channel by the airflow and are in friction with the friction channel, the movement track of the materials with different electrical properties, electric quantities and electric charges under the action of an electric field force deviates after the materials enter into the region of the electric field, so that the materials enter into the different discharge holes. Aiming at any particle-size material less than 1 mm, the whole grading system is high in recovery rate, high in concentrate grade and low in mechanical impurities as well as adhering substances among particles.

Description

technical field [0001] The invention belongs to the field of electric separators and mineral electric separators, in particular to an electric separator and an electric separator method for -1mm particle size materials. Background technique [0002] At present, the beneficiation of non-ferrous ores is mainly based on wet flotation. To complete the flotation process, various beneficiation agents are consumed. The remaining chemicals in the tailings will cause huge environmental pollution. At the same time, wet beneficiation will inevitably be accompanied by the construction of tailings ponds. And maintenance, bring huge security risks. Electric separation has a history of more than 100 years, but traditional electric separation machines include drum electric separation machines, rotary electric separation machines, rotary friction electric separation machines, etc. These electric separation machines are charged first and then electric separation. Dense phase feeding, serious...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03C7/00
Inventor 何亚民魏勇徐智平
Owner CHENGDU LEEJUN IND
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