Jiangsu Shuangliang Group developed a coal-fired water slurry boiler

A new environmentally friendly and cost-effective boiler has been successfully developed by Jiangsu Shuangliang Group. The product, called the "Left and Right Source Coal-Water Slurry Boiler," represents a significant breakthrough in clean energy technology. According to industry experts, this innovation fills a critical gap in the domestic market and sets a new benchmark, reaching international leading standards. Coal-water slurry is a novel type of clean coal-based fuel, created by processing and grinding coal with the addition of small amounts of chemical agents. It consists of approximately 70% coal, 1% additives, and 29% water. With a heat value of about 19 MJ/kg, it behaves similarly to liquid fuel, making it highly versatile for industrial use. Although coal-water slurry technology was first introduced in the U.S. during the 1980s, its application in power generation remains limited—currently only Japan has implemented it on a large scale. In most other countries, research into coal-fired boilers using this fuel is still in its early stages. As one of China's largest manufacturers of fuel gas boilers, Shuangliang Boiler has always focused on sustainability, efficiency, and safety. Based on the principle of "technology close to nature," the company has invested heavily in research and development of clean combustion technologies. Through extensive market analysis and technological tracking, they have developed an advanced, fully automatic coal-water slurry boiler equipped with an integrated pre-combustion chamber. This innovative design significantly improves combustion efficiency while reducing operating costs. The Left and Right Source Coal-Water Slurry Boiler offers several key advantages. Its optimized design between the burner and the boiler body enhances combustion efficiency and lowers running expenses. Additionally, the coal-water slurry nozzle has a longer service life—over 3,000 hours compared to less than 2,000 hours for standard nozzles. This extended lifespan reduces maintenance costs and minimizes downtime, improving overall operational efficiency. The boiler also features a high level of automation, with More than 20 built-in safety functions. These include pre-purging before ignition to eliminate residual flammable gases, automatic ignition systems that prevent human error, and flame detection to avoid unexpected shutdowns. These features ensure safe and reliable operation, even when unattended. To date, the product has been granted 8 national patents, highlighting its technological innovation and market potential.

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