Industrial biomass hot air furnace
Industrial biomass hot air furnace main applications:
1) generate hot air for drying and heating;
2) hot air temperature: 80-800 ° c (adjustable)
3) heat output: 600,000-12,000,000 kcal/hour;
4) temperature control accuracy: +/ -15 ℃
5) clean hot air can be obtained by using a tubular heat exchanger
Industrial biomass hot air furnace operating principle:
GL series reciprocating grate furnaces are designed specifically for burning biomass fuels that typically have low calorific value, high moisture content, and radically different fuel sizes. It mainly consists of reciprocating grate, mechanical drive system, combustion chamber, feed hopper, ash remover, blower and exhaust fan.
The air - cooled reciprocating furnace rate is an inclined step - like furnace rate. When biomass fuel is fed through the hopper to the top staircase, it is pushed down the length of the grate through discrete drying, gasification, combustion and burnout zones. Combustion air is blown into the combustion chamber from the bottom of the grate through holes in each grate. The ash is discharged automatically into the ash conveying system at the end of the grate. After heating, the hot air (800-1000 ℃) is discharged by the exhaust fan for drying or heating. A tubular heat exchanger can be installed behind the stove to obtain clean hot air.
Industrial biomass hot air furnace technical advantages:
1) multi-fuel flexibility: the reciprocating grate can perfectly burn a variety of fuels with low calorific value and high ash content, such as coal, wood chips, bark, sawdust, forest waste, agricultural waste, rice husk, etc.
2) suitable for fuel with high moisture content: the grate can be divided into four areas:
A. dry zone: for preheating and dispersing fuel
B. Gasification zone: gasified fuel surface, easy to burn
C. Combustion zone: complete combustion of fuel
D. burnout area: ash collection
3) perfect, complete combustion: the reciprocating motion can disperse and flip the fuel perfectly during the combustion process, so the combustion is perfect and complete.
4) good insulation and high thermal efficiency: the heat insulation layer is 750 mm, which can ensure the surface temperature of the furnace is about 40 °C. Less heat loss and complete combustion can ensure thermal efficiency of up to 90%.
5) long service life: the combustion chamber frame is made of high strength steel and lined with heat-resistant cement and fire-resistant brick. The grate is made of heat-resistant alloy steel. The normal life span can reach 10 years.
6) automatic operation: oil supply, ash discharge and grate movement are all fully automatic.
7) stable output temperature: temperature control is achieved by accurately adjusting combustion air, grate movement and feed speed. All fans are equipped with inverters. The grate drive motor is stepless.
8) safety measures: exhaust fans are equipped to generate negative pressure combustion. The ash separator is sealed with water. The negative pressure and closed combustion chamber ensure safe operation and cooling of the grate.
