Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Flotation process adopting flotation column to regrading scheelite instead of flotation machine

A flotation column and flotation machine technology, applied in the field of scheelite flotation, can solve the problems of unstable beneficiation index, low degree of automation, high labor intensity, etc., to improve labor environment, reduce labor intensity, and high degree of automation Effect

Inactive Publication Date: 2012-09-12
CHINA MOLYBDENUM
View PDF5 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the prior art, the present invention proposes a scheelite concentrating process that uses flotation columns instead of flotation machines, so that it can solve the problems of low concentrate grade, high labor intensity, and automation in scheelite flotation. Problems of low and unstable beneficiation index

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flotation process adopting flotation column to regrading scheelite instead of flotation machine
  • Flotation process adopting flotation column to regrading scheelite instead of flotation machine
  • Flotation process adopting flotation column to regrading scheelite instead of flotation machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Such as figure 1 As shown, a scheelite beneficiation process that uses flotation columns instead of flotation machines is to use flotation column technology in the scheelite beneficiation after roughing scheelite ore to conduct several times of beneficiation of rough concentrate , the selected tailings are also fine-swept several times using flotation columns to obtain higher-grade scheelite concentrates. The steps are as follows:

[0019] 1. Rough concentrate is obtained from scheelite after rough separation, and the coarse concentrate is concentrated into about 70% ore pulp. Add caustic soda at about 200±10 grams per ton of coarse concentrate, heat to 92-95°C, and keep warm for two Hours off the drug.

[0020] 2. The heated and demedicated coarse concentrate enters a stirring tank for slurry adjustment, so that the concentration of the ore slurry is between 20% and 30%;

[0021] 3. Then enter the flotation column for fine and rough selection, and the fine and rough ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of scheelite flotation, and discloses a flotation process adopting a flotation column to regrading scheelite instead of a flotation machine, wherein, the flotation column technology is adopted in scheelite regrading after the scheelite is processed through rough concentration; rough concentrate is regraded repeatedly; well-chosen tailings are also processed through fine scavenging for a plurality of times by adopting the flotation column so as to obtain scheelite concentrate with high grade, that is, the rough concentrate is obtained after rough concentration; ore slurry that is concentrated is then processed through heating, reagent removal and size mixing, so that the ore slurry can enter the flotation column for fine roughing when the contraction of the ore slurry ranges from 20 to 30 percent; foam products obtained in the fine roughing enter a regrading area comprising at least one flotation column and are regraded once or repeatedly, so as to obtain high-grade scheelite concentrate; and the tailings obtained in the fine roughing enter a fine scavenging area, and the tailings that are processed through fine scavenging are conveyed to a tailing dam or return for scheelite roughing. The flotation process can obtain scheelite concentrate with higher grade, the operation energy consumption of the flotation column is low, the mineral dressing index is increased, the labor environment can be improved, the labor intensity is reduced, and smoother production can be ensured.

Description

technical field [0001] The invention belongs to the technical field of scheelite flotation, and mainly relates to a flotation process for selecting scheelite by using a flotation column instead of a flotation machine. Background technique [0002] At present, black tungsten ore in my country has been exploited, and the tungsten industry is facing severe challenges. Since 2007, Luoyang Luanchuan Molybdenum Industry Group Co., Ltd. has built two scheelite concentrators to recover scheelite from floating molybdenum tailings. It can produce nearly 10,000 tons of scheelite each year, realizing an output value of more than 800 million yuan. At present, the recovery of scheelite adopts the process of roughing at room temperature, heating the coarse concentrate to remove the drug and then refining; the roughing adopts advanced flotation column technology, and the refining adopts flotation machine flotation. Flotation with flotation machines has problems such as low concentrate gra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00
Inventor 王选毅雷春强吴铁生薛明向简建军辛亚涛王立兴杨冬明邓双丽张兆金李玉坤王向辉
Owner CHINA MOLYBDENUM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com