Key Highlights: Dry operation, high field strength,and stable operation.

I. Application Scenarios

SGTQ Dry LIMS features water-free dry separation. It offers strong adaptability, which is suitable for a full range of applications, from mining and mineral processing to raw material purification. Its core applications include:

Weakly Magnetic Minerals: For weakly magnetic ores such as hematite, limonite, specularite, chromite, manganese ore, and wolframite, it can perform pre-concentration disposal and fine purification operations to improve concentrate grade, which effectively discards tailings early and reduces the processing load for downstream operations.

Non-Metallic Minerals: Iron removal and purification of non-metallic minerals including quartz, feldspar, and ceramic raw materials.

Industrial Materials: Removal of weakly magnetic harmful impurities from various abrasives, catalysts, powders, and granular materials to ensure product quality meets required standards.

II. Equipment Structure

It adopts a modular and compact design, with a reasonable structure, convenient assembly and disassembly, and low failure rate. Its core consists of ten key components, as shown in the diagram below:

SGTQ Dry LIMS Structure

1-keep-off cover;  2-magnetic roller;  3-keep-off guard board;  4-belt stretcher; 5-feeding box;  6-roller frame;  7-non-magnetic roller;  

8-frame;  9-driven mechanism;  10-chargeur;  11-distributing plate adjusting mechanism.

III. Working Principle

The materials are evenly fed into the feeding box by the vibrating feeder, and then conveyed to the transmission belt. The transmission mechanism drives the belt to smoothly deliver the material to the permanent magnet strong magnetic roller area. The magnetic particles are firmly attracted and adhered to the surface of the roller belt by the strong magnetic roller. After leaving the strong magnetic area with the belt, they fall into the concentrate collection tank through the distribution plate. The non-magnetic material falls directly into the tailings collection tank under the dual action of gravity and centrifugal force, thus completing the precise separation of magnetic and non-magnetic materials.

IV. Core Equipment Features

High Magnetic Field Strength: The magnetic induction intensity on the roller surface exceeds 15,000 Gauss, providing strong magnetic penetration and efficient adsorption even for weakly magnetic minerals, ensuring thorough and complete separation.

Dry and Environmentally Friendly: The entire process operates dry, requiring no water and resulting in no wastewater discharge. This conserves water resources, making it suitable for water-scarce mining areas and arid regions, offering a green and low-consumption solution.

Adjustable and Controllable Parameters: The roller body supports stepless speed regulation, and with the feed distribution plate, precise adjustments can be made, allowing for flexible control of concentrate grade and yield, adapting to different mineral processing processes.

Stable and Easy Maintenance: The compact and durable structure boasts a low failure rate, simple operation, requires no dedicated personnel, and facilitates convenient maintenance, resulting in low overall operating costs.

V. Application Cases

Case 1: South African Manganese Oxide Ore Dry Separation

Equipment: 12 SGTQ-0415 dry permanent magnet roller separators

Mineral Processing Index: Feed particle size 6-36mm, feed grade 20%; Concentrate yield 40-50%, recovery rate 80%, concentrate grade ≥35%.

Case 2: Tungsten-Tin Separation at a Tungsten Mine in Jiangxi

Equipment: SGTQ-350×600 double-roller Dry LIMS, used for efficient separation of tungsten and tin in tungsten-tin rough concentrate. It provides stable separation parameters, achieving precise separation of tungsten and tin minerals with satisfactory recovery rates, fully meeting the needs of mine beneficiation.

Mineral Processing Index: Raw ore tungsten grade of 62.65%, tin grade 11.24%; Tungsten concentrate tungsten grade 72.71%, tin grade 1.16%.

VI. Main Technical Parameters

It covers multiple specifications and models, and the magnetic field strength can be customized as needed. The core parameters are summarized below, and flexible selection is supported based on material particle size and processing capacity:

Note: The parameters are for reference only. The magnetic field strength can be customized according to the customer’s actual needs.

VII. Equipment Summary

The SGTQ Dry LIMS boasts four core advantages: high magnetic field strength, dry and waterless operation, flexible and adjustable parameters, and stable and reliable operation. It perfectly solves industry pain points such as mineral processing in water-scarce areas, purification of weakly magnetic ores, and iron removal from non-metallic ores. It is suitable for a wide range of material particle sizes, has a large capacity to choose from, and has low operation and maintenance costs. It is an ideal piece of equipment for pre-selection and tailings removal of weakly magnetic minerals and purification of industrial raw materials, helping mining enterprises improve quality and efficiency, and reduce energy consumption.