Welcome to discuss your project requirements.
Welcome to discuss your project requirements.
Biomass briquette production line included a feeding conveyor, dryers, briquettes, and discharging machine, and the operation of distribution cabinets. While, the briquette machine included an equipment rack, motor, feeding port, transmission system, pressure roller, horizontal ring die, discharging port, and other parts.
A biomass briquette machine is also called a briquette or straw briquette machine. The briquette equipment is suitable for fluffy material such as straw and sawdust that can produce a high density of biomass briquette. Biomass briquette needs the ensilage machine or rubbing machine to crush to the length of 20 ~ 50 mm material. Through extreme pressure, the briquette is formed. The density of briquette is 0.7 ~ 1.2 g/cm3. The benefits of briquettes are convenience to transportation, savings, and usage. Straw briquette overcomes the lightweight, large volume, and is easily affected by environmental conditions such as rain or snow fire. It can be satisfied with the demand of commercialization, which can be sold as fuel or animal feed. The biomass briquette production line included a feeding conveyor, dryers, briquettes, and discharging machine, and the operation of distribution cabinets. While, the briquette machine included an equipment rack, motor, feeding port, transmission system, pressure roller, horizontal ring die, discharging port, and other parts.
The biomass briquette production line included a feeding conveyor, dryers, briquettes, and discharging machine, and the operation of distribution cabinets.
The dried biomass such as straw, grass, and wood chips are put into the cutting or grinding machine to be fiber. The fiber length is less than 50mm. The moisture content is between 12% and 25%. The feeding conveyor sends material into the feed port. Through the spindle rotation to drive the roller rotation, and then through the rotation of the roller, the material was extruded by a nubby shape from the horizontal hole. and falling the discharging port. The model hole can be a square or circular ring.
Workflow of wood chip drying and rod making production line
I. Raw material pretreatment process
Crushing and screening: Large-sized wood chips (such as wood blocks, branches, etc.) need to be crushed twice by a hammer mill or a knife disc integrated machine to ensure that the material size is ≤3mm.
The impurities (such as stones and metal debris) are separated by a vibration screening machine, and qualified materials enter the drying system through a conveyor belt.
Moisture content detection: The initial moisture content of the wood chips after pretreatment needs to be tested. If it is >30%, the subsequent drying time needs to be extended or the drying intensity needs to be increased.
II. Drying process
Feeding and preheating: The wood chips are evenly fed into the drying drum by a spiral feeder. In the initial stage, the temperature is raised to 40-45℃ at a rate of 5℃/h, and steam spray is turned on to maintain a humidity of 85-90% (to prevent the surface from dehydrating and cracking too quickly).
Main drying stage: The material is boiled and fluidized in the drum through the lifting plate and hot air system (temperature 50-80℃, wind speed 1.5-3.5m/s), and the water is continuously evaporated to the target moisture content (normally 12-15%). The temperature of hardwood (such as oak) needs to be controlled at ≤65℃, and the temperature of softwood (such as pine) can be raised to 80℃. The humidity is dynamically adjusted according to the tree species.
Discharging and monitoring: After drying, the material is transferred to the temporary storage warehouse via the conveyor belt, and each batch needs to be sampled for moisture content testing (error ≤0.5%).
III. Briquette making process
High-pressure extrusion molding: The dried wood chips enter the rod making machine through the screw conveyor, and are extruded into hexagonal hollow rods (normal outer diameter 50-60mm) through the mold at a high temperature of 220-280℃ and a pressure of 30-50MPa.
Cooling and shaping
The high-temperature bars are cooled to room temperature through an air-cooled conveyor belt to avoid a loose structure due to thermal stress.
IV. Carbonization treatment (optional)
Oxygen-free carbonization: The formed bars are sent to the carbonization furnace and carbonized for 4-8 hours in an oxygen-free environment at 400-600℃ to convert into high calorific value mechanism charcoal (fixed carbon content ≥75%). The carbonization tail gas is treated with tar and other by-products through a condensation recovery system.
V. Auxiliary system integration
Conveying system: Enclosed belt conveyors or screw conveyors are used throughout the process to reduce dust.
Dust removal system: Cyclone separators + bag dust collectors are configured in the crushing and drying sections, and the dust emission concentration is ≤20mg/m³.
Intelligent control: Temperature and humidity sensors and variable frequency speed control modules are integrated through PLC to achieve automatic parameter adjustment and fault alarm.
Main Machines of Production Line: Wood Chipper, Wood Crusher, Drying Machine, Glue Mixer, Presswood Pallet Machine, Mold Temperature Controller.
Automatic material spreading, automatic hot pressing, automatic push-out and automatic stacking. can produce 180 pieces of wood pallet per hour.
Fully automated production solutions. In the entire production line, only one or two staff members are needed to handle normal operations.
Reusing waste wood, sawdust, wood chips, straw, coconut fiber (coir) and other fibers can significantly reduce the cost of raw materials.
The pressed wood pallet is of high quality with smooth surface, high loading capacity, good performance in water proof resistance and non-fumigation.
By simply changing the compression molding, pallets in varied shapes/sizes could be produced. Meet the needs of various uses.
Heat sources can be supplied in a variety of ways. The energy consumption is low. It is an ideal option to recycle wood waste in an environmentally friendly way.
According to the customer's actual requirements, raw materials and use of customized solutions
Own production base, strict production standards and processes, professional quality control.
Engineers track the entire service, install and commissioning the equipment to ensure successful operation.
Provide technical support, technical service, technical training, after-sales service.
