ZOZEN biomass thermal oil heater is a square coil horizontal chain grate assembled boiler, and the chain grate and the boiler body are separated to deliver. The boiler adopts chain grate to realize mechanical coal feeding, it is equipped with drum and induced draft fan for mechanical ventilation, and slag extractor to realize mechanical slag discharging. During the operation, the fuel falls from the coal hopper to the grate for combustion, and the high-temperature flue gas is reflected to the front of the furnace through the back arch and enters the furnace chamber. After radiant heat exchange by the radiant heating surface, it enters the convection heating surface for convection heat exchange, then leads to the waste heat boiler, then enters the air preheater, and finally enters the dust collector. After dust removal, the flue gas is drawn by the induced draft fan and discharged to the atmosphere through the chimney.
ZOZEN Boiler has developed the horizontal three-pass water & fire tube boiler with a chain grate stoker structure. With advanced CNC manufacturing technology, the arched tube sheets and threaded fire tube was first adopted in China to increase heat transfer and completely solve the problem of cracking of the back tube sheet.
ZOZEN Boiler has cooperated with the Department of Thermal Engineering of Shanghai Jiaotong University to jointly develop the DZL series tri-drum biomass-fired boiler. This kind of steam boiler is a water tube boiler adopting the assembled structure with two parts. The boiler can be equipped with different grates to ensure the sufficient combustion of biomass fuels.
ZOZEN DZL series biomass/coal-fired boiler has designed with multiple separate air chambers, which can realize the air distribution at different combustion. With the speed gear, the sufficient combustion of fuel can be ensured according to different combustion rate.
ZOZEN DZL series biomass/coal-fired boiler has sufficient steam output. The boiler adopts the arched tube plates and threaded smoke tubes, which strengthen the heat transfer and solve the cracking problem of rear tube plates. Please kindly click the chat online to get more information.
ZOZEN DZL series boiler can use both biomass and coal as fuel. The dual fuel adaptability would help users to save fuel costs. It adopts three-pass water and fire tube design and can be equipped with economizer and duster cleaner to ensure the combustion efficiency, which can effectively lower the NOx emission. Please kindly click the chat online to get more information.
In Sri Lanka, a set of ZOZEN 15 tph DZW series biomass-fired steam boiler was being installed and debugged. The user is a well-known local palm oil manufacturer, AEN PALM OIL PROCESSING (PVT) LTD. The boiler fuel is palm fiber. The boiler is a tri-drum boiler which has characteristics of no ash accumulation, high efficiency and good environmental protection performance. There is no need to stop the boiler for dust removal, which can make the boiler keep the normal operation for a long time. Meanwhile, considering the combustion characteristics of palm fiber, ZOZEN technicians also optimize the feeding hopper, furnace arch and air distribution device of the boiler to solve the coking problem caused by the fuel combustion.
The new generation of SZL series boiler is cooperated with Shanghai Jiaotong University. It increases the furnace height, increases rotating speed, adds ash blowing device and designs ash removal system at the bottom of the grate. These well solve problems like scaling, abrasion, front arch, etc. It can also reduce the maintenance and operating costs and extend the service life of the biomass-fired boilers.
