TDS® - Tianjin MeiTeng Technology Co., Ltd.

Coal Processing Solution

TDS®

How It Works

TDS-principal

The MeiTeng TDS® Intelligent Dry Sortors been launched in 2015, which is based on X-ray and image recognition.The TDS® system operates through a precise and fully integrated process that combines stable feeding, high-resolution detection, and intelligent sorting execution,as well as the auxiliary system.

1. Feeding and Material Stabilization

Raw coal is fed by a vibrating feeder and spread as a thin, even layer onto a fast-moving conveyor belt. This stable material flow ensures that each particle is clearly exposed and ready for qualitative analysis, providing a condition for accurate sorting.

2. Identification and Analysis

As material passes through the detection area, it is scanned by an X-ray transmission system and CCD imaging. Each particle’s density, composition, and thickness are captured in real time. MeiTeng proprietary big-data algorithms then classify clean coal and waste by generating an intelligent recognition model, ensuring high sorting accuracy.

3. Intelligent Sorting Execution

Analysis results are transmitted to the compress-air execution system. Using precise, energy-efficient solenoid valves, the system can reject waste from valuable clean coal and middlings. Upon operational needs, TDS® can perform de-stoning, achieve three-stage sorting (clean coal, middlings, waste), or produce direct-shippable product.

4. Auxiliary System Integration

Auxiliary systems of TDS® include compress-air supply, dust management, power distribution, and centralized control. These systems maintain a clean working condition, reliable power, and highly automated operation, ensuring a long-term stability and efficiency of TDS® system.

About H Series TDS^®

MeiTeng developed three-products and underground TDS^®models following the first standard TDS^® was successfully applied in 2016. Through years of technology iteration, MeiTeng has recently announced H-type TDS^®. MeiTeng R&D team gave a comprehensive upgrade for H-type TDS^®in sorting accuracy, processing capacity, feed particle size and equipment structure, making a new benchmark in the field of intelligent dry sorting.

Applications

MeiTeng’s TDS® intelligent dry sorting system offers a versatile solution for modern coal preparation, addressing multiple application needs with efficiency and sustainability

Coking Coal Sorting

Ideal for mines with high reject content and high transportation costs, or coking coal preparation plants where slime issue increase washing costs. TDS^® is able to de-stone efficiently, improving feed quality and reducing downstream processing throughput. De-stoning on the mine site can reduce waste from the source, cut transportation costs, and minimize downstream processing capacity.

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Thermal Coal Sorting

Well-suited for new coal preparation plants. TDS^®is a replacement of conventional systems, or an integration with existing facilities to share processing loads and expand overall capacity. TDS^®delivers consistent, high-efficiency sorting with reduced operating costs.

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Dirty Coal Recovery

Applicable to coal types that conventional dense-medium plants cannot process—such as easy degradation low rank bituminite and lignite, discarded dirty coal, or carbonaceous mud stone recovery. TDS® enables recovery of resources from the waste.

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Mobile Dry Sorting Systems

Modularized units consist of a diesel power generator, screen, crusher, dry sorter, air compressor, conveyor, and power distribution system.

Designed for operations requiring frequent scene changes , these systems can serve on multiple mines with flexible deployment.

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Extreme Environments

Proven adaptability under harsh and unique conditions: from severe cold regions to water-scarce deserts; from high-altitude plateaus with low pressure to underground mines. TDS® maintains stable and reliable performance where traditional methods would fail.

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MeiTeng TDS® Advantages

High Sorting Accuracy

Significantly higher accuracy compared with traditional air and dry processing, It can completely replace conventional wet processing technologies such as jigging, movable screen jigging, dense-media vessels, dense-media drums and drewboys.
Efficiency Improvement

Boosts clean coal yield and enhances overall plant productivity.
Low Energy Consumption

Dry process with an optimized system design can reduce power usage compared with the traditional wet process technology.
Low Operating & Maintenance Cost

OPEX is lowered by a simplified layout, a reduced quantity of machines, and an easier maintenance.
High System Stability

Reliable design ensures a long-term, consistent performance.
Compact Footprint

Has a smaller footprint compared to traditional preparation systems.
Flexible & Versatile Application Scenarios

Underground Sorting
Underground de-stoning can leave the waste in the pit, improving ROM coal quality at the source.

Mobile & Semi-Mobile Applications
Flexible deployment at mines, ports, coal yard，bulk loading station or other locations, significantly broadening coal preparation scenarios and application scope.
Data and Algorithms Cover All Coal Types

With more than a decade of application experience, the TDS^® data and algorithms have evolved to the fifth generation, enabling TDS^® to cover all coal types and a wide range of typical operating conditions.
AI-Powered Control

Advanced recognition and big-data analytics deliver stable, reliable results

TDS® Selection Specification Sheet

Series	Category	Model	Feeding Size (mm)	Nominal Capacity (t/h)
StandardSeries	Large Lump	TDS(IXS160BP 500)-12-300	300-50	120
		TDS(IXS160BP 500)-16-300		160
		TDS(IXS160BP 500)-20-300		200
		TDS(IXS160BP 500)-24-300		240
		TDS(IXS160BP 500)-32-300		320
		TDS(IXS160BP 500)-40-300		400
	Medium Lump	TDS(IXS160BP 500)-12-100	100-25	66
		TDS(IXS160BP 500)-16-100		90
		TDS(IXS160BP 500)-20-100		114
		TDS(IXS200BP 500)-24-100		138
		TDS(IXS160BP 500)-32-100		180
		TDS(IXS160BP 500)-40-100		230
	Small Lump	TDS(IXS160BP 500)-12-40	40-10	27.5
		TDS(IXS160BP 500)-16-40		37.5
		TDS(IXS160BP 500)-20-40		47.5
		TDS(IXS200BP 500)-24-40		57.5
		TDS(IXS160BP 500)-32-40		75
		TDS(IXS160BP 500)-40-40		95
H Series	Large Lump	TDS(IXS160BP500)-H200-300	300-50	200
		TDS(IXS160BP500)-H320-300		320
		TDS(IXS160BP500)-H400-300		400
	Medium Lump	TDS(IXS160BP500)-H100-100	100-25	110
		TDS(IXS160BP500)-H135-100/td>		320
		TDS(IXS160BP500)-H170-100		170
	Small Lump	TDS(IXS160BP500)-H040-50	Oct-50	40
		TDS(IXS160BP500)-H055-50		55
		TDS(IXS160BP500)-H070-50		70

Note：

1.This table is only applicable to the preliminary selection of TDS® equipment for coal process..

2.The actual processing capacity is related to the reject content and particle size distribution of feed .

3.The above processing capacity data are based on the typical feeding quality l. The actual processing capacity for specific users needs to be determined by contacting the manufacturer for calculation.

Why MeiTeng TDS®?

High Sorting Accuracy and Large Processing Capacity

After 10 years of practical application, the sorting accuracy of TDS^® can reach that the misplacement rate of coal in waste is ≤3.0%, the misplacement rate of waste in coal is ≤3.0%, and the waste discharge rate is ≥90%. These indicators are at the forefront among the similar equipment.

The maximum processing capacity of a single TDS^®unit can reach 400 t/h.

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Reliable and Proven System

Trusted Hardware – All key components are carefully selected and tested under harsh operating conditions to guarantee long-term reliability. Depending on customer needs, the system incorporates world-renowned brands for X-ray source generating device, solenoid valves, motors, gearbox, inverters, bearings and electrical control components.

Proven Software – Our intelligent sorting algorithms have been refined over more than a decade, validated by data models built on 450+ field applications.

Smart Valve Design – Wear parts such as solenoid valves are modular and easy to replace. A single valve failure does not interrupt continuous operation.

Certified to leading international quality standards – The complete unit has obtained CE, EAC, GOST and MA certifications, and can also be customized to meet specific requirements of different countries and users.

Preventive Maintenance – Based on extensive operating experience, strict maintenance schedules are supported by real-time monitoring of operating hours, throughput, gangue ratio, compressed air pressure, and X-ray source temperature. Early fault warning can prevent unexpected shutdown.

Fast Remote Support – In network-covered and authorized areas, MeiTeng offers 24/7 remote service for troubleshooting and video guidance, ensuring quick recovery.

Global Reliability – Trusted performance in the harshest conditions, Successfully overcame the challenges of +4000 m high-altitude, +40℃ high temperature, -35℃ chilliness and tropical high salinity and high humidity circumstances.

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Driven by Innovation

MeiTeng invests heavily in R&D every year, securing numerous patents and driving continuous technological breakthroughs. All innovation applied in TDS^® is protected by authorized international patents, invention patents, utility model patents, and software copyrights, MeiTeng own complete intellectual property rights.

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Radiological Safety

MeiTeng holds the “Radiation Safety Permit” issued by the Chinese authorities, and all TDS® series have obtained the “Exemption Certificate for Radioactive Isotopes and Radiation Devices” in China.

The strict inspections before leaving the factory can ensure that the radiation level around TDS® is far below the allowed occupational limit.

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Customized Engineering

With rich design expertise and strong R&D capabilities, MeiTeng provides tailored engineering and product solutions to meet specific project requirements.

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Market Leader

As of December 31, 2025, MeiTeng has deployed more than 520 units in the global coal industry — ranked No.1 in China, with applications spanning all coal types and operating conditions. Successfully applied in leading coal enterprises and international projects.

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