A wood pellet fuel manufacturer, which processes 200,000 tons of forestry waste annually, originally used coal-fired hot air furnaces to dry pine sawdust (moisture content 55%→10%), but faced problems of high pollution and high costs. Based on actual problems, a biomass boiling furnace was used as a heat source to achieve energy self-sufficiency and green production.
1. Breakthrough in fuel adaptability
Direct combustion of irregular waste materials such as high-humidity wood chips (moisture content ≤ 65%) and bark, through boiling suspension combustion technology (850~900℃ bed temperature), the fuel calorific value utilization rate reaches 92% (traditional grate furnace is only 75%).
2. Efficient output of heat source
The combustion produces 900℃ high-temperature flue gas, which is directly introduced into the dryer heat exchange system after the fly ash is captured by the built-in cyclone separator:
First-stage heat exchange: flue gas is cooled to 220℃ and air is heated to 180℃ (main drying area)
Second-stage heat exchange: tail gas preheats wet wood chips at 180℃ (pre-drying area), and thermal efficiency is increased by 35%
3. Ash recycling
The bottom ash of the boiling bed (containing unburned carbon <3%) is transported to the mixing system through the spiral slag discharger as a binder for pellet fuel to achieve zero solid waste emissions.
This case proves that using a biomass boiling furnace as a heat source can reduce cost consumption to a greater extent and better control the drying temperature of wood chips to prevent coking.
Driven by the "dual carbon" goal, biomass boiling furnace are creating a technological revolution in the fields of industrial heating and agricultural drying wi
In the field of industrial drying, pulverized coal hot air furnaces are becoming a new choice for many companies to replace traditional coal-fired boilers with
Driven by the "dual carbon" goal, the biomass drying industry is accelerating its transformation towards high efficiency and low carbon. Clean hot air furnaces
In the bentonite processing industry, drying is one of the key production links, and coal-fired boiling furnaces have long been widely used to provide the heat
