Among many boiler types, biomass-fired chain grate boiler has the advantages of wide fuel adaptability, low original emission concentration, low operating costs and easy operation. Based on the eco-friendly development thinking, ZOZEN Boiler has long been designing and manufacturing the chain grate boilers. At present, the DZL series industrial boiler adopts the advanced arch design, independently developed membrane water-cooled wall structure, special slag removal technology and reasonable sealing grate structure, which shows an obvious performance advantage.
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.
ZOZEN SZL series biomass-fired boiler has the characteristics of sufficient output and high thermal efficiency. To ensure the sufficient combustion of fuel and save the fuel costs, ZOZEN analyzes the characteristics of different fuels, and optimizes the feeding hopper, width and length of grate, grate rotating speed, secondary air inlet place and direction. ZOZEN also adopts the design of separate air chambers and air dampers to ensure the complete combustion of different biomass fuels and improve the boiler thermal efficiency to above 88%.
ZOZEN SZL series biomass-fired boiler can be fired by various kinds of fuel including biomass particles, wood chips, palm shells, straws and so on. The boiler body is composed of the chain grate and boiler proper with a packaged or pre-assembled structure. It is convenient for installation, so it can reduce the basic construction costs for customers. At the same time, in order to meet the boiler emission standards in different areas, ZOZEN Boiler can design the cyclone, wet scrubber and bag-type dust removal devices to lower the NOx emission to 200mg/m3.
DZL series hot water boiler is horizontal three-pass water-fire tube chain grate boiler. It uses fuel like coal and biomass pellets. The thread smoke tubes inside the drum form the convention heating surface while the drum and two-side water-cooled wall form the furnace radiation heating surface. Its boiler structure is compact. It can be packaged before shipment which can reduce the costs of basic boiler construction. Therefore, it is a kind of popular heating equipment among hotels, schools and hospitals.
ZOZEN Boiler cooperated with Hebei Yigao Bioenergy Co., Ltd. to improve the reasonable and efficient utilization of biomass energy such as corn straws and so on. According to Hebei Yigao Bioenergy’s requirement of using biomass straws as fuel, ZOZEN Boiler reasonably designed the furnace arch, furnace wall and furnace heating surface of SZL series biomass-fired steam boiler by cooperating with Shanghai Jiaotong University to ensure the combustion efficiency and rated evaporation capacity of boiler.
Under the general trend of global economic green development, biomass-fired boilers use biomass-forming pellets such as crop straws and forestry residues as fuel have become the choice of many enterprises because of their environmental protection advantages. Among them, Hunan Leading Construction Technology Co., LTD., specializing in the R&D, production and sales of lightweight building materials, is an integrated supplier of various advanced application technologies. In the production process of high-precision aerated concrete blocks and plates, ZOZEN SZL series biomass-fired boilers provide a stable heat source for the autoclave curing process.
