Zhongding Boiler Co. Ltd products

The vertical type rice husk fired steam boiler is a small capacity boiler with horizontal water tubes, it fits for the small industries, and has the advantages of compact structure, small footprint, and save infrastructure cost. Flue gas is brushing the inner wall of furnace and water tubes, for radiation heat transfer and convection heat transfer, the grate and lower part of furnace is radiation heating area, the horizontal water tubes and upper part of furnace is convection heating area. Except rice husk, the fuel could also be wood chips, rice hull, bagasse, straw, peanut shell, mustard stalk, cotton stalk, coconut shell, and waste cloth, etc. biomass particle diameter should be 6-10 mm, length should be 25-50mm, and water content should be less than 15%. The source of solid biomass fired boiler fuel is widespread, has the advantages of low cost, environmental friendly (sulfur content2emission), energy saving, and high combustion efficiency (>90%).

DZH series straw fired moving grate steam boiler is single drum water tube and fire tube boiler. Water wall tubes at left and right sides of furnace are the radiated heating area. the two wings at furnace and screw fire tube in the drum are convection heating area. This straw fired boiler uses the upper drum, water wall tube and head are in symmetrical arrangement mode. The drum is welded assembly by cylinder and front back tube plate. This furnace structure in reasonable arrangement and high efficiency.
The DZH series straw fired moving grate steam boiler uses the new scientific achievement, such as arch tube plate, screw fire tube to solve the problem of tube plate flaw, water wall tube explosion, low efficiency, insufficient output, poor adaptability of different biomass fuel, improve the heat transfer.

Biomass log fired moving grate steam boiler is single drum water tube and fire tube boiler. Water wall tubes at left and right sides of furnace are the radiated heating area. the two wings at furnace and screw fire tube in the drum are convection heating area. This biomass log boiler uses the upper drum, water wall tube and head are in symmetrical arrangement mode. The drum is welded assembly by cylinder and front back tube plate. This furnace structure in reasonable arrangement and high efficiency.
This biomass log fired moving grate steam boiler uses the new scientific achievement, such as arch tube plate, screw fire tube to solve the problem of tube plate flaw, water wall tube explosion, low efficiency, insufficient output, poor adaptability of different biomass fuel, improve the heat transfer.

Zhongding biomass fired double cyclone circulating fluidized bed boiler with low speed is a new generation CFB boiler, it is the national patent product of Zhongding Boiler. Circulating fluidized bed boiler is consisting of combustion chamber, separator, fly ash circulating system, superheater, convection bank, economizer, and air preheater. The boiler inherits the original technology advantages, at the same time, makes big breakthrough on the technology of cyclone fluidized combustion, cyclone separator, and loop seal device. The thermal efficiency of biomass power plant boiler is about 5% higher than the other CFB boilers.

New type DZH Series coal fired steam boiler is single drum longitudinal type water and fire tube steam boiler,the combustion equipment is moving grate.The boiler mainframe in general configuration adopts the form of drum overhead and bilateral symmetry of water wall tube and header.The drum is installed and welded by boiler barrel and front & back tube plates.It has high burning efficiency due to the spark retaining wall located in the interior of furnace.
This series of boiler adopts latest scientific research achievements,such as arched tube plate, thread smokestacks, etc. It solves the problem of the pot shell type boiler tube plate cracking, pan cone lower speed bulge, water-cooled wall tube explosion, low thermal efficiency, insufficient of power and poor adaptability of coal.