Biomass steam boiler is a kind of horizontal water fire tube boiler. A bundle of threaded flue tubes is arranged in the pot, and light tube water-cooled walls are provided on the left and right sides of the furnace. Biomass steam boiler adopts light chain grate to realize mechanical coal feeding, equipped with blower and induced draft fan to realize mechanical ventilation, and equipped with slag scraper to realize automatic slag discharge.
The front and rear arches of this series of biomass fired steam boilers adopt new energy-saving technology furnace arches. The fuel falls from the coal chute to the grate. After entering the furnace chamber for combustion, the flame bends upward through the refraction of the rear arch and is transferred to the front flue box through the combustion chambers on both sides of the furnace body. Then it goes back from the front flue box to the tube bundle in the pot and then through the rear flue box to the energy saving device. It is then exhausted by the induced draft fan through the flue to the chimney to the atmosphere.
When the biomass steam boiler burns, the coal with roughly uniform fuel is dropped into the coal chute by the automatic coal feeder and enters the front arch for preheating under the rotation of the chain grate. It burns out in the combustion zone and falls into the slag pond. The high temperature flue gas produced by the combustion of the furnace enters the rear part of the furnace through the lower arch of the two flue wings, and is heat exchanged by the two flue wings, and flows forward through the front flue box, and after heat exchange, it enters the convection tube, enters the coal saver and dust collector at the bottom of the pot, and is sent to the chimney through the induced draft fan and is discharged into the atmosphere.
Industrial steam boiler feed water is done by boiler feed pump, softened water is fed through feed pipe coal saver, then into boiler pot, then from the fall pipe into the left and right collector. The water-cooled walls on both sides absorb heat and vaporize, producing steam. The steam enters the steam-water separator in the boiler barrel, and after separation, it enters the heat flow through the main steam valve. The pot barrel is composed of curved pipe plate and threaded pipe, so that the pot barrel is changed from a quasi-rigid body to a quasi-elastomer, and the stress-bearing parts in the pipe plate area are eliminated to reduce stress. The flue pipe inside the tube plate is changed from a double return to a single return, solving the problem of cracks inside the tube plate.
This series of steam boiler adopts high efficiency heat transfer threaded tube, which can enhance the heat transfer effect and realize the characteristics of boiler rapid temperature and pressure rise. It effectively improves the thermal efficiency of the boiler. Compact structure, small volume compared with the same type of boilers, saving boiler room infrastructure investment. Stable operation, easy adjustment and sufficient power output. In addition, the secondary air is arranged in the front and rear arches to ensure the secondary combustion of fly ash particles after decomposition and high combustion efficiency.
The biomass-fired boiler produced by ZOZEN Boiler is stable and efficient in operation, reliable in quality and complete in model. Also according to the drawings provided by customers, one-to-one customization services, welcome to consult the purchase, we will be happy to serve you.
