Requirements for Smokeless Coal Quality of Electrical Furnace
Coal is one of the most essential energy sources for human beings. It is widely used in industrial sectors and for daily life such as electricity generation, heating, and cooking. The quality of coal needs to be taken into account to ensure its efficiency and sustainable utilization. There are different types of coal in the market, such as high ash and low ash coal, and smokeless coal. Each type of coal has its own uses and quality requirements.
In this article, we will focus on the requirements for smokeless coal used for electrical furnace. Smokeless coal can be used as an alternative to wood and other fuels in electric furnace. It is also used for blacksmithing and melting metals. Smokeless coal is generally a low-grade coal, which is produced by partially crushing and grinding it into small pieces. The coal particles need to be of uniform size to ensure effective burning. However, it still contains a great amount of water and volatile matter, which are not ideal for use in electric furnace.
To ensure the best results when using smokeless coal in electrical furnace, the quality of the fuel needs to be taken into consideration. The ash content of the coal should be low, and it should contain no more than 10% mineral matter. The calorific value of the coal should be as high as possible, with a minimum of 7200 kJ/kg. The volatile matter content needs to be between 25% and 30%. The sulfur content should also be low, and under 0.5%. The moisture content should be between 6-8%.
In addition, to ensure proper combustion, the coal should be free of clinker, metal particles, and rocks. The particles need to be uniform in size with no oversized or undersized particles. The coal should be free from excessive fines, as these can build up and disrupt the normal operation of the furnace.
By ensuring that the smokeless coal used in electrical furnace meets the above quality requirements, it can be used more efficiently and effectively. This can help to maximize the efficiency of the furnace and reduce the risks of equipment failure.
To summarize, the quality requirements for smokeless coal used in electrical furnace include low ash content, high calorific value, adequate volatile matter content, low sulfur content and moisture content, lack of clinker, metal particles, rocks and excessive fines. By adhering to these requirements, the smokeless coal can be utilized more effectively and efficiently, leading to greater operational efficiency and improved operational safety.
