Product Thermal Capacity: 2 – 20t/h
Working Pressure: 1.0-2.5 MPA
Available Fuel: Biomass pellet (Rice husk, straw, coffee husk, sawdust, bagasse, etc.)
Available Industries: Heating, chemical, food, tobacco, textile, printing and dyeing, feed, medicine, building material, wine, rubber, hospital
Biomass Pellet Boiler Introduction
Biomass pellet boiler ontology using new pot shell structure, the longitudinal around the drum of buy, fixation of box, furnace wall, flue wall, threaded pipe, and down pipe, etc; Left and right side of the combustion chamber wall arrangement of water wall tube, by the chamber of a stove or furnace water wall type extended upward to form left flue convection tube; Inside the drum is equipped with threaded pipe bundle, part left and right sides of the return water distribution pipe installation, set up four groups at the entrance of drop pipe water ejector device, within the lower after the drum is equipped with drainage device on a regular basis.
Combustion equipment adopt chain grate, sprocket shaft driven by transmission; One into the wind, under the fire grate is equipped with four independent wind chamber, on one side of a wind chamber is equipped with air, the air blower by side duct, then through air into the independent wind chamber. Before and after the furnace arch before and after the set up, set up two fold the flame between arch wall, adopt the refractory concrete pouring. Installed after the arch above the chamber of a stove or furnace flue gas outlet dust tracery wall, brick masonry.
Biomass fired boiler is a horizontal three-pass water-fire tube boiler. Threaded smoke pipes are arranged in the boiler barrel. There are water wall pipes on the left and right sides of the furnace. The front and rear arches adopt a new type of energy-saving furnace arch, and the light small scale chain grate is adopted. It is conducive to the combustion of biomass fuel. It is equipped with a blower and an induced draft fan for mechanical ventilation, and is equipped with a slag discharger to realize automatic slag discharge.
The fuel falls from the upper coal hopper onto the grate and burns in the furnace. The flame refracts upward through the back arch and passes through the combustion chambers on both sides of the body and turns to the front smoke box, and then from the front smoke box to the threaded smoke in the drum. In the pipe, it enters the economizer through the back smoke box, and then is drawn by the induced draft fan through the flue to the chimney and discharged into the atmosphere.
Biomass Pellet Boiler Features
- High calorific value, burning. Burning rate above 95%.
- Than the big, long burning time. Molding product volume is only equivalent to 1/30 of the original straw, greatly extend the burning time.
- Rich in resources and renewable. Resources are rich enough.
- Green, low carbon. Up to the national environmental protection requirements.
- Wide application. Widely used in life, decentralized heating, bath cente.
Biomass Molding Fuel Specification
Biomass pellet or Biomass Moulding Fuel (“BMF” for short) uses agricultural and forestry wastes (such as straw, wood chips, bagasse, etc.) as raw materials, through processes such as crushing, drying, mixing, and extrusion. The formed fuel (such as pellets, rods, blocks, etc.). It is mainly used to replace traditional fossil energy (coal, oil, natural gas), a new type of clean fuel that is directly burned in a specially developed biomass burner.
1. The composition of biomass briquette fuel BMF
BMF is composed of combustible matter, inorganic matter and moisture. It mainly contains carbon (C), hydrogen (H), oxygen (O) and a small amount of nitrogen (N), sulfur (S) and other elements, as well as ash and moisture. The composition of various ingredients is as follows:
▲Carbon: BMF fuel is a low-carbon fuel with low carbon content (approximately 45-50%), especially low fixed carbon content (approximately 16%), so carbon emissions are low during combustion.
▲Hydrogen: BMF fuel contains a lot of hydrogen (about 5-8%) and high volatile content (more than 70%), so it has good combustion characteristics.
▲Oxygen: BMF fuel contains high oxygen content (about 35-40%). Biomass fuel contains significantly more oxygen than mineral coal, which makes biomass fuel easy to ignite.
▲Sulfur: The sulfur content in BMF fuel is less than 0.08%, and it has good environmental protection characteristics. There is no need to set up a flue gas desulfurization device during combustion.
▲Ash: BMF pellet fuels mainly use high-quality woody biomass as raw materials, and the ash content is low, only 1.5-3%.
2. The calorific value of biomass briquette fuel BMF
The calorific value of biomass briquette fuel BMF is 15-19MJ/Kg, and about 2～3kg BMF can replace 1Kg fuel oil or 1 cubic natural gas.
3. The characteristics of biomass briquette fuel BMF
▲As a high-quality homogeneous fuel, the molding fuel can be automatically controlled in terms of transportation, storage, transmission and combustion, and its convenience is comparable to that of light fuel;
▲Solid fuel, high density, small size, safe and convenient storage, clean and clean;
▲The fuel has high volatile content, easy to catch fire, good combustion characteristics, and high burning rate;
▲Sulfur content is extremely low, only about 1/20 of fuel oil, and environmental protection requirements can be met without taking any desulfurization and denitrification measures;
▲Low ash content, conventional dust removal devices can meet environmental protection requirements;
▲Emissions: The CO2 emitted by biomass combustion is the same as the CO2 absorbed during the growth process, and it replaces fossil energy, reducing net emissions. According to the prescribed mechanism, biomass fuel CO2 is an ecological emission.