Coal washing is a process carried out in a coal washery or coal preparation plant (CPP). In this process, raw coal is refined or cleaned to remove impurities. Here’s how it works:
- Purpose:
- The primary goal of coal washing is to enhance the quality and efficiency of coal by removing non-combustible impurities.
- It results in cleaner coal that burns more efficiently and fetches better prices in the market.
- Methods:
- Water and Mechanical Techniques: Coal washing involves using water and mechanical methods to separate coal from its impurities.
- Gravity Separation: The process relies on the difference in density between coal and its impurities. Impurities are usually more densely packed because they are inorganic materials.
- Specific Gravity: Industrial separators are used based on the specific gravity of coal and associated impurities (such as shale, sand, and stones).
- Formation of Coal:
- Coal is a type of sedimentary rock formed from buried vegetation that undergoes transformation due to pressure and heat over long periods.
- With enough time, pressure, and heat, coal can eventually turn into diamond formations.
- Benefits:
- Increased Efficiency: Washing coal improves its combustion efficiency.
- Quality Enhancement: Cleaner coal translates to better quality.
- Emission Reduction: Cleaner coal can help reduce emissions during burning.
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gives information thank you