galena ore beneficiation production line and process flow

Solution for galena ore beneficiation production line and process flow

1. Program Overview

This program provides professional solutions for galena ore beneficiation processing for galena ores with different embedded characteristics. According to the embedded particle size characteristics of galena, gravity separation or flotation process is adopted to achieve efficient recovery of lead concentrate, maximize resource utilization and reduce production costs.

2. Characterization of raw materials

Characteristics of galena (PbS):

• Specific gravity: 7.4-7.6g/cm³, with obvious specific gravity difference with veinstone.

• Embedding characteristics:

  • Coarse-grained embedded: galena crystal size coarse, and vein stone boundaries obvious

  • Fine-grained embeddedness: galena is dispersed in fine grain size, and closely coexists with the veinstone.

• Fragility: lead minerals are fragile, avoid over-crushing.

3. Design of galena beneficiation process

Coarse embedded galena gravity beneficiation process flow
The raw ore is firstly crushed by jaw crusher, and the crushed material enters into circular vibrating screen for screening and grading. The qualified size of the screened material goes directly to the next process, and the unqualified material returns to the second crusher to continue to be finely crushed. The finely crushed materials return to the vibrating screen for screening again, forming a closed loop. The material which reaches the requirement of particle size enters the rod mill for rough grinding, and the roughly ground material is sent to the jig machine for gravity separation, and finally obtains the lead concentrate and tailings.

Fine-grained embedded galena flotation process flow
After crushing, the raw ore enters the ball mill for fine grinding, so that the minerals are fully dissociated. After grinding, the slurry enters the flotation system, and the galena is separated from the veinstone by adding flotation chemicals. After flotation, the concentrate is thickened and dewatered, and finally lead concentrate is obtained.

4. Advantages of Gravity Separation Process

Features of the process

• Energy saving and environmental protection: no chemical additives, no pollution to the environment.

• Investment saving: equipment investment is 40-50% lower than that of flotation method.

• Low operation cost: low energy consumption, simple maintenance, economic operation cost.

• Strong adaptability: especially suitable for the treatment of coarse-grained embedded galena.

Technical index

• Concentrate grade: lead content>65%.

• Processing capacity: 5-200 tons/hour can be customized.

5. Advantages of flotation process

Applicable conditions

• Fine-grained embedded galena

• Complex symbiotic ores

• High-grade concentrate requirements

Process Characteristics

• High sorting efficiency and stable recovery

• High concentrate grade, excellent product quality

• Strong adaptability, can handle complex ores

6. Core equipment configuration

Main equipment of gravity separation production line

• Jaw crusher: used for coarse crushing and fine crushing of ore.

• Circular vibrating screen: for material classification and screening.

• Rod mill: coarse grinding equipment, effectively avoiding over-crushing

• Jigger: the core equipment for gravity separation.

• Dewatering screen: for product dewatering

Flotation production line main equipment

• Ball mill: used for fine grinding of ore.

• Flotation machine: to realize the separation of mineral flotation

• Thickener: used for product concentration

• Filter: complete product dewatering operation

7. Technical characteristics

Technical advantages of gravity separation process

• Pre-treatment optimization: adopting screening and grading process, effectively avoiding the phenomenon of over-crushing.

• Graded crushing: timely screening after rough crushing to improve the overall processing efficiency.

• Specialized grinding: adopting rod mill for rough grinding to protect the complete crystal structure of galena.

• High-efficiency sorting: jig machine has high sorting efficiency and remarkable recovery effect.

Technical advantages of flotation process

• Fine grinding: fully dissociate the minerals to create conditions for sorting.

• Optimization of chemicals: scientific proportioning of flotation chemicals to improve sorting efficiency.

• Automatic control: adopting automatic control system to ensure stable production.

8. Suggestions for program selection

Recommended conditions for adopting gravity separation process

• The crystallization size of galena is larger than 0.5mm.

• The grade of raw ore is relatively low

• Limited project investment budget

• Strict environmental protection requirements

Recommended conditions for flotation process

• Fine embedded particle size of galena

• Complex and variable nature of the ore

• Need to produce high grade concentrate

• Large processing scale

9. Economic Benefit Analysis

Economic benefits of gravity separation program

• Equipment investment: 40-50% lower than flotation process

• Operating cost: 30-40% lower

• Environmental protection benefit: no chemical pollution, environmentally friendly.

Economic benefits of flotation program

• Recovery index: 5-10% higher than gravity beneficiation

• Concentrate grade: lead content up to 75% or more

• Resource utilization rate: higher comprehensive utilization rate

10. Service Support

Technical support services

• Ore selectivity test analysis

• Optimization design of galena beneficiation process

• Equipment selection and configuration program

Engineering implementation services

• Equipment installation and commissioning guidance

• Technical training for operators

• Production process optimization adjustment

After-sales service

• Equipment quality assurance

• Technical consulting support

• Spare parts supply guarantee

Lead ore beneficiation solution is customized according to the characteristics of the ore, and the gravity separation process is recommended for coarse-grained embedded ores, which has the advantages of saving investment, low cost and good environmental protection, etc. The flotation process can be adopted for fine-grained embedded or complex ores, which is capable of obtaining a higher recovery rate and concentrate grade. Both processes can provide complete technical solutions and equipment support to ensure the best economic and technical indicators to create maximum value for customers.