Chrome Ore Beneficiation Solutions

Process Overview

This chrome ore beneficiation solution designs a complete set of "Crushing-Screening-Re-selection-Magnetic Separation" combined process for the mineral characteristics of chromite (FeCr₂O₄). It adopts the technical route of multi-stage classification and gradient separation, and realizes the efficient recovery and purification of chromite ore through the optimization of equipment configuration and process connection, ensuring the obtaining of high-quality chromite concentrate products.

Process Flow Details

Crushing and screening system

• The raw ore is fed evenly through the silo, and then enters the jaw crusher for rough crushing.

• The crushed product is classified by circular vibrating screen into different particle sizes.

• The coarse material returns to the screening system after fine crushing, forming a closed loop.

• Ensure that the grinding size meets the process requirements

Grinding and Classifying System

• Ball mill is used for grinding

• Grinding products are classified by high-frequency vibrating screen or hydrocyclone.

• Control the fineness of grinding to realize the dissociation of chromite monomer.

• Classification overflow enters the separation operation

Re-election separation system

• Coarse-grained materials are sorted by jigger.

• Fine-grained materials are sorted by spiral chute for roughing and concentrating.

• Shaking table for concentrate purification

• Realize efficient recovery of chromite of different grain sizes

Magnetic separation and purification system

• Re-election concentrate enters the magnetic separation process

• Separation of iron minerals and chromite by medium-strength magnetic separator

• Further improve the chromite concentrate grade and chromium-iron ratio

• Ensure the final product quality is up to standard

Concentrate Processing System

• Concentrate is thickened by thickener

• Dewatering by filtering machine

• Obtain final product with qualified moisture content

• Recycling of return water to reduce fresh water consumption

Core Equipment Configuration

Technical Advantage

Technological Advantages

• Adoption of "multi-stage screening-stage re-election" combined process, with recovery rate increased by 3-5%.

• Optimized equipment configuration and process connection, processing capacity increased by 20-25%.

• Adaptable to chrome ores of various grades and properties.

• Flexible adjustment of the process according to the characteristics of the ore.

Remarkable economic benefits

• Short payback period, usually 1-2 years

• Reduction of operating costs by 15-20%.

• Equipment operation rate ≥92%, low maintenance cost

• Energy consumption index is better than the industry standard

Environmental protection and energy saving features

• High utilization rate of water resources recycling

• Tailings adopt dry storage technology

• Dust and noise control meet the standard

• Overall energy consumption is reduced by more than 20%.

Typical Technical Indicators

Process indicators

• Processing capacity: 15-200t/h (can be customized according to demand)

• Grade of raw ore: Cr₂O₃ 20-40%

• Concentrate grade: Cr₂O₃ ≥ 45%, chromium-iron ratio ≥ 2.5

• Recovery rate: 80-90% (according to the nature of the ore)

Product quality

• Metallurgical grade chrome concentrate: Cr₂O₃≥48

• Chemical grade chrome concentrate: Cr₂O₃≥45

• Refractory Grade Chrome Concentrate: Cr₂O₃≥42

Technical Services and Support

Pilot Research Services

• Chrome Ore Process Mineralogy Study

• Selectivity testing and process validation

• Expansion of continuous test

• Provide authoritative test reports

Engineering Design Services

• Process design and optimization

• Equipment selection and configuration program

• Plant layout and piping design

• Automation control system design

Production support services

• Equipment installation and commissioning guidance

• Formulation of operating procedures

• Technical staff training

• Production optimization and technical transformation

After-sales service

• Equipment maintenance

• Spare parts supply

• Technology Upgrade

• Remote Technical Support

Successful application cases

A large chrome ore beneficiation project

• Grade of raw ore: Cr₂O₃ 28

• Adopt re-election-magnetic separation joint process

• Concentrate grade: Cr₂O₃ 48%, recovery rate 87%.

• Annual processing capacity of 500,000 tons, significant economic benefits

Complex and difficult to select chrome ore project

• The raw ore contains large amount of mud, and the mineral embedding is complicated.

• Adopting washing-heavy separation-magnetic separation process

• Concentrate grade: Cr₂O₃ 46%, recovery rate 83%.

• Solve the problem of difficult chrome ore recovery

We have rich experience in chrome ore beneficiation projects, and can provide the most economic and efficient chrome ore beneficiation solutions according to your ore characteristics and needs. Welcome to contact our technical team for customized chrome ore beneficiation solutions and detailed quotes!