50 Tons DHX Coal Fired CFB Boiler

April 18, 2022

Circulating Fluidized Bed Boiler is a new type of environmentally friendly industrial boiler with low requirements for fuel, including rock coal, coal gangue, lignite, anthracite, poor coal and bituminous coal, etc. It can also burn biomass fuels such as bark and garbage. Energy-saving low-NOx circulating fluidized bed boilers include several product series, which are widely used in thermal power generation, centralized heating, cogeneration, industrial steam, biomass recycling and other fields. The actual effect of circulating fluidized bed put into project operation is highly efficient, environmental friendly and stable, which is unanimously recognized by customers and has established a good market reputation and brand image.

ZOZEN produces DHX series 50 tons coal-fired CFB boiler to provide stable heat source for the development and production of lithium new material products, effectively helping enterprises to improve production efficiency. This series of energy-saving circulating fluidized bed boiler has wide combustion adaptability, which can burn both high-quality coal and various kinds of low-quality coal, and the combustion technology is environmentally friendly. The electricity consumption of chemical plants using this circulating fluidized bed boiler can be reduced by at least 30%, while boiler wear and tear is greatly reduced, boiler availability is increased, and maintenance and repair costs are reduced accordingly.

dhx series coal cfb steam boiler

dhx series coal cfb steam boiler

The customer is very satisfied with the overall service of the ZOZEN team. After the installation of circulating fluidized bed boiler, the helium oxide emission is much lower than that of pulverized coal furnace, high efficiency desulfurization is achieved directly during the combustion process, and the technical equipment is economically simple, the initial investment and operation cost of desulfurization is much lower than that of dry pulverized coal plus flue gas desulfurization.

Based on the advantages of circulating fluidized bed boilers at home and abroad, DHX type circulating fluidized bed boiler has effectively solved the shortcomings of boiler wear, coking and blockage of return device, high concentration of original dust discharge from boiler, difficulty in slag discharge, etc. by reducing the circulating multiplier and optimizing the structure of key parts, so that the original circulating fluidized bed boiler can be improved and enhanced, thus making the structure of boiler more reasonable, performance more excellent and operation more safe and reliable operation. The water-cooled membrane wall separator top and water-cooled membrane wall steering smoke chamber structure of the boiler completely solve the problem of air leakage, collapse and damage of the separator top of circulating fluidized bed boiler, and improve the reliability of the boiler comprehensively; the amount of refractory material of the boiler is greatly reduced by 50%, which reduces the thermal inertia of the boiler and makes the boiler start-up and pressure supply time greatly reduced.

coal fired cfb boiler

coal fired cfb boiler

DHX series coal-fired circulating fluidized bed boiler can not only use bituminous coal, lignite and other easy-to-burn coal as fuel, but also can burn anthracite and other difficult-to-burn coal as fuel. Due to the violent mass and heat exchange in the fluidized bed, the unburned coal particles can increase their residence time in the furnace through multiple cycles, which is very conducive to the fuel burning out and thus the combustion efficiency is greatly enhanced. DHX type circulating fluidized bed boiler can obtain up to 80% – 90% desulfurization under the appropriate calcium-sulfur ratio and limestone particle size; meanwhile, due to the lower combustion temperature and the use of graded air supply, the NOx produced during combustion of this type of boiler is also much lower than that of pulverized coal furnace. Therefore, its sulfur dioxide and nitrogen oxide emissions are lower, and its environmental performance is greatly enhanced.

ZOZEN can manufacture circulating fluidized bed steam boilers of the SHX and DHX series from 10 to 100 tons capacity, and circulating fluidized bed hot water boilers of the QXX and DHX series from 7 MW to 116 MW. With more than 30 years of manufacturing experience, ZOZEN has become a steam boilers supplier to many industrial producers, supplying high quality boilers for 15,580 projects in China and abroad.

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