Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Ore grinding grading system and method capable of controlling derichment of iron minerals

A grading system and iron ore technology, applied in grain processing, etc., can solve the problems of low gradable particle size of only 0.074, easy blockage of screen, high price of fine screen, etc., to improve mill processing capacity and improve concentrate products Quality, easy-to-handle and implement results

Active Publication Date: 2015-12-23
湖南金磨科技有限责任公司
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the fine sieve is used for classification, since the iron ore is heavy, it is easy to enter under the sieve, which can promote the positive enrichment of the iron ore to a certain extent, and the effect of reducing the anti-enrichment is obvious. It is 0.1mm, and the minimum gradable particle size can only reach 0.074mm. However, most iron ore in China now require the qualified particle size of grinding to be 0.045mm or below as the benchmark, and the price of the fine sieve is high, and the screen is easy to block, so this The application of this method is subject to many restrictions

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
  • Ore grinding grading system and method capable of controlling derichment of iron minerals
  • Ore grinding grading system and method capable of controlling derichment of iron minerals
  • Ore grinding grading system and method capable of controlling derichment of iron minerals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Such as figure 1 As shown, the present invention can control the anti-enrichment grinding and classification system of iron minerals, including ore feeding slurry tank 1, ore feeding pump 2, double overflow pipe cyclone 3, grit sinking ore slurry tank 4, mill 5, The first sorting equipment 6 and the open-circuit grinding mill 7, the double overflow pipe cyclone 3 is provided with a cyclone inlet 31, a settling outlet 32, an outer overflow outlet 33 and an inner overflow outlet 34, and there are three channels respectively Produce three graded products of grit, overflow and internal overflow, among which, the grit product is composed of coarse and heavy mineral particles (usually large iron mineral conjoint bodies), and the overflow product is composed of fine and light minerals Particles (usually dissociated fine-grained iron ...

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 discloses an ore grinding grading system and method capable of controlling derichment of iron minerals. The ore grinding grading system comprises a feeding pulp tank, a feeding pump, a double-overflow-pipe swirler, a sand setting pulp tank, a mill, first separation equipment and an open-circuit grinding machine. The double-overflow-pipe swirler is provided with a swirler inlet, a setting sand outlet, an outer overflow outlet and an inner overflow outlet. An outlet of the feeding pulp tank is connected with an inlet of the feeding pump. An outlet of the feeding pump is connected with the swirler inlet. The setting sand outlet is connected with an inlet of the mill. An outlet of the mill is connected with the feeding pulp tank. The outer overflow outlet is connected with the first separation equipment. The inner overflow outlet is connected with an inlet of the open-circuit grinding machine. An outlet of the open-circuit grinding machine is connected with the first separation equipment. The ore grinding grading method includes the steps that ore pulp is fed into the double-overflow-pipe swirler to be graded, and the graded setting sand products, outer overflow products and inner overflow products are processed separately. By means of the ore grinding grading system and method capable of controlling derichment of the iron minerals, derichment of the iron minerals in setting sand can be reduced, the handling capacity of the mill is improved, the energy consumption for ore grinding is reduced, and the quality of ore concentrate products is improved.

Description

technical field [0001] The invention relates to the technical field of ore processing equipment, in particular to a grinding and grading system and method capable of controlling anti-enrichment of iron minerals. Background technique [0002] In iron ore processing, the grinding cost accounts for more than 50% of the total processing cost. And as the particle size of the iron ore to be processed gradually becomes finer, two or more stages of grinding are usually used, which further increases the grinding cost. Grinding and classifying technology is the core process of the mineral processing plant, and the classification overflow particle size and sand return ratio are the key factors that affect the grinding energy consumption, the processing capacity of the mill and the sorting index. [0003] At present, the secondary grinding (and multi-stage grinding) grinding, medium ore, and coarse concentrate regrinding and classification are basically closed-circuit grinding circuits...

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): B02C21/00B02C23/14
Inventor 肖骁张国旺龙渊黄礼龙石立赵湘李文明谢驰
Owner 湖南金磨科技有限责任公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products