DZL Series Biomass Fired Industrial Hot Water Boiler
Capacity: 1.4 – 7 MW
Pressure: 1.0 – 1.6 Mpa
Temperature: 115 / 70 ℃
Fuel: Biomass molding granules, wood chip, corn cob, saw dust, palm shells, rice husk, etc.
Industries: Heating, hotels, schools, hospitals
The DZL series quick-installed boiler is a horizontal three-pass water-fire tube chain grate boiler designed for biomass combustion. The boiler features a single drum layout with threaded smoke tubes for convective heating surface, and water-cooled walls on both sides of the drum for radiant heating surface. The combustion equipment adopts a lightweight chain grate, and the boiler is delivered in a complete quick-installed form. The electrical control system enables infinitely variable control of the grate, with alarm and interlock protection for critical parameters.
Automatic Control System
The control system adopts high brightness, full Chinese display, with famous PLC control system as the central control unit;Exchange information with industrial hot water boiler user through man-machine dialogue to realize automatic operation.
Environmental Emissions
The ash produced by biomass boiler combustion accounts for about 1.5% of the fuel. In order to facilitate ash removal, the back of the boiler is arranged with a screw slag extracter to achieve continuous ash removal.A dust collector is arranged in the flue of the boiler tail to ensure that the smoke emission meets the requirements of environmental protection.
Combustion Process
The fuel is fed into the furnace by the screw feeder, where it is gradually preheated by high temperature flue gas and primary wind, dried, ignited and burned, during which a large number of volatiles are separated out and the combustion is intense.The high temperature flue gas generated after combustion enters the convection flue through the furnace for heat exchange, and then enters the dust collector for purification. Finally, it is discharged to complete the whole combustion and heat transfer process.The ungasified side of the fuel moves to the back of the grate until it burns out, and a small amount of ash ends up in the scupper at the back of the grate.
| Model | Rated thermal power (MW) | Rated working pressure (MPa) | Rated output water temperature (℃) | Thermal efficiency (%) | Maximum transport dimension (m) |
| DZL1.4-0.7/95/70-SCⅢ | 1.4 | 0.7 | 95 | >83 | 5.30×2.40×3.40 |
| DZL2.8-0.7/95/70-SCⅢ | 2.8 | 0.7 | 95 | >83 | 6.50×2.70×3.60 |
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