Máquina inteligente de separación de carbón seco Obote: Proceso de separación de carbón

El Obote intelligent dry coal separation machine utilizes advanced technologies and equipment to physically separate coal from impurities, thus enhancing coal quality and its utilization value.

Coal Separation Process:

Raw Coal Preparation

After coal is mined, it is transported via conveying equipment (such as a belt conveyor) to the raw coal storage yard at the coal preparation plant. Once at the plant, the raw coal is typically subjected to screening equipment for particle size classification.

Screening

Screening is a critical preliminary step in the intelligent dry coal separation process. The raw coal is passed through a vibrating screen, with screen hole sizes set according to actual requirements, such as 50mm or 80mm. After screening, the raw coal is classified into different particle sizes. Larger particle sizes (e.g., 50–300mm) are directed to the intelligent dry separation system, while materials smaller than the screen hole size are either treated as product coal or directed to other processing stages.

Intelligent Separation

The screened raw coal enters the intelligent dry separation machine, with the working principle as follows:

• Information Acquisition: Using X-ray sources and detectors, information about the material’s elemental differences is collected. Simultaneously, a visible light camera array captures the material’s surface texture and reflectivity information.
• Recognition and Analysis: Artificial intelligence deep learning algorithms are applied to fuse and train the acquired information, identifying coal and gangue (waste rock).
• Separation Execution: Based on the recognition results, high-pressure air is directed at the target material using electromagnetic valves, achieving the separation of coal and gangue.

Product Output

The separated coal and gangue are transported and stored via different conveying equipment:

• Clean Coal: The sorted clean coal is transported via a belt conveyor directly into the clean coal storage, or can be crushed and mixed with other coal products as needed.
• Gangue: The separated gangue is conveyed to the gangue storage via a belt conveyor and is eventually transported for disposal.

Product Storage and Transportation

• Clean Coal Storage: Clean coal is typically stored in clean coal bins, with feeders at the bottom of the bin for easy loading and transportation.
• Gangue Treatment: Gangue is stored in the gangue bin and can be transported for disposal as needed.

Core Advantages of Obote Intelligent Dry Coal Separation

• Water-Free: Solves the coal separation problem in water-scarce areas, avoiding water pollution and resource consumption, without the need for coal slurry water treatment costs and environmental pressures.
• High Separation Accuracy: The intelligent recognition technology effectively distinguishes between coal and gangue with similar densities or surface characteristics, significantly reducing the ash content of clean coal and the gangue’s coal-bearing rate.
• High Automation: The entire process operates automatically, reducing reliance on manual labor and minimizing operational errors.
• Low Operating Cost: The system mainly consumes electricity and compressed air, with relatively simple maintenance, making the overall operating cost lower than wet coal separation.
• Strong Adaptability: The process is less sensitive to fluctuations in raw coal moisture compared to wet methods, and the modular design of the equipment makes it easy to install and relocate.
• Data-Driven Optimization: Continuous learning and optimization based on data improve performance over time.