Objective in any beneficiation process is to reduce contaminants from the input. This results in a product that is better than the input leading to multiple benefits both in usage and transportation. It is also pertinent to have a technology that does not involve huge diversion of community resources, like water and leaves a residue that is harmful to the community and has negative impact on the environment where the process is located. Coal beneficiation is a critical process in the coal industry to improve fuel quality and efficiency. Traditional wet methods are costly and environmentally-challenging due to water consumption and effluent generation. This paper explores a low-cost dry coal technology that utilizes principles of physics and specifically-designed air blower and nozzles to precisely separate coal from impurities. The proposed method drastically reduces capital costs, has much lower operational costs, minimizes environmental impact, and enhances coal quality without involving the use of water. The disruptive nature of this technology challenges prevailing myths regarding the limitations of dry beneficiation, particularly for high ash coal, and paves the way for more efficient and eco-friendly coal processing solutions.

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Low Cost Sorting—A Disruptive Technology

  • G. V. Ramana,
  • Lingaraj Sahu

摘要

Objective in any beneficiation process is to reduce contaminants from the input. This results in a product that is better than the input leading to multiple benefits both in usage and transportation. It is also pertinent to have a technology that does not involve huge diversion of community resources, like water and leaves a residue that is harmful to the community and has negative impact on the environment where the process is located. Coal beneficiation is a critical process in the coal industry to improve fuel quality and efficiency. Traditional wet methods are costly and environmentally-challenging due to water consumption and effluent generation. This paper explores a low-cost dry coal technology that utilizes principles of physics and specifically-designed air blower and nozzles to precisely separate coal from impurities. The proposed method drastically reduces capital costs, has much lower operational costs, minimizes environmental impact, and enhances coal quality without involving the use of water. The disruptive nature of this technology challenges prevailing myths regarding the limitations of dry beneficiation, particularly for high ash coal, and paves the way for more efficient and eco-friendly coal processing solutions.