circulating fluidized bed boiler

The SHX series low rate external circulating fluidized bed boiler combustion technology is currently an efficient, energy-saving, and clean combustion technology. ...

The SHX series low rate external circulating fluidized bed boiler combustion technology is currently an efficient, energy-saving, and clean combustion technology. The "Dafang" brand SHX series low rate external circulating fluidized bed boilers developed by our company are improved and enhanced on the basis of absorbing the advantages of domestic and foreign circulating fluidized bed boilers. By reducing the circulating rate and optimizing the structure of key components, we effectively solve the problems of boiler wear, coking and blockage of the return device, high original dust concentration, and difficult slag discharge. This makes the structure of the boiler more reasonable, the performance more excellent, the operation safer and more reliable, and reduces equipment operation and maintenance costs to a limited extent.
The SHX series low rate external circulation fluidized bed boiler has a dual drum natural circulation structure, and the furnace outlet is equipped with a high-temperature cyclone separator, which operates stably and efficiently. The cyclone throat made of wear-resistant formed bricks and wear-resistant pouring materials is resistant to high temperature and wear. It adopts a U-shaped return feeder, and the feeding and returning quantities are automatically balanced. There is no need for manual adjustment during operation, and the work is reliable. Anti wear devices are installed on the water-cooled wall tubes and smoke windows at the bottom of the furnace to ensure the service life of the heating surface. There are no buried pipes inside the furnace, so there is no problem of pipe wear. The fluidized bed furnace, cyclone separator and other parts are made of fluidized bed wear-resistant molding bricks and fluidized bed wear-resistant pouring materials to ensure the long-term safe operation of the boiler. Coal has a wide range of adaptability, including bituminous coal, lean coal, anthracite, coal gangue, slag, etc., all of which can be burned, making it convenient for users. The load regulation ratio is large, up to 1:4, suitable for users' requirements for large-scale load changes. Clean combustion with low NOX emissions can be achieved by directly adding limestone to the furnace for efficient and low-cost desulfurization, which is beneficial for improving the atmospheric environment.