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Airflow dryer machine for charcoal production line

Brief description of the airflow dryer machine

Airflow dryer machine is a piece of ideal drying equipment with a small investment and fast profits. The air flow dryer machine is continuous and rapid drying equipment which is usually used in the charcoal production line. The loose granular materials suspending in hot air, and going instantaneous moisture removal in the process, which is suitable to dry granular materials like sawdust and rice husk. After drying, the materials moisture content will be less than 10%.

airflow dryer
airflow dryer

 

Airflow dryer machine working process

Wood, branches, logs, bamboo, straw, sugarcane bagasse and other biomass materials should be crushed into sawdust by the wood crusher before drying. The requirement of the raw materials for drying in the airflow dryer is less than 5mm in the diameter. In front of the airflow dryer, there is also an ignition stove for providing hot air like the rotary dryer machine. After the material is added to the dryer, it will flip in the pipe with the fore of the fan. The material is evenly dispersed in the dryer and in full contact with the hot air to accelerate the drying speed.

In the drying process, under the action of hot gas, the material is discharged from the dust collector at the end of the dryer after drying. The high-temperature hot air in the airflow dryer machine in the drying tube with high-speed, the residence time is very limited, therefore, generally only applicable to the material surface moisture evaporation constant speed drying process. The working principle of airflow dryer machine is to send granular wet materials into the hot air flow and get dry granular products. The airflow dryer has a good effect on reducing environmental pollution.

Applications of the airflow dryer

Airflow dryer machine is widely used in metallurgy, building materials, feed, mining, food, medicine, chemical, pharmaceutical, coal washing, fertilizer making, light industry, and charcoal production industries. The output of the drying machine is different according to the moisture of the raw materials, which ranges from 200kg/h to 600kg/h. The smaller the moisture content of the material, the larger the output of the dryer.

In the charcoal production line, the air dryer machine is mainly used behind the crusher after the material is crushed, the granular wet material is quickly dried into the required granular dry products. After that, the materials are transported by screw feeding machine to sawdust briquette machine and carbonization furnace, to further charcoal production.

Features of the airflow drying machine

  1. Drying raw materials: rice husk, sawdust, shavings, branches, wood chips, and other granular raw materials after grinding (diameter less than 3mm, length less than 5mm).
  2. The production efficiency: hot air is 180 ℃, the relative humidity of 35% of sawdust or rice husk dry to the relative humidity is 10%, the hot air temperature is not lower than 180 ℃, the discharging mouth temperature of 40-50 ℃.
  3. Fuel options: wood (wood), coal, steam or electric heating.
  4. High drying intensity and low equipment investment. Airflow drying machine of large processing, water evaporation capacity, with small size and less investment, is incomparable to other drying machines.
  5. The high degree of automation and good product quality. During the drying process, the material is completely carried out in the pipeline, and the drying time is very short (only 2-10 seconds). During this period, the heat is mainly used for water evaporation, and the temperature of the material itself does not rise much, so the temperature has little influence on the product. Therefore, the product does not contact with the outside world, can be small pollution and good quality.
  6. Complete equipment supply and the heat source are optional. Users can configure corresponding equipment according to material conditions and process requirements.
  7. As for the selection of heating mode, due to the great adaptability of airflow drying machine, users can choose electric heating, steam heating, heat conduction oil heating, coal burning hot air furnace, gas hot air furnace, steam + electric heating and other combined forms according to the conditions of the location of the equipment.

Technical parameters of airflow dryer machine

Model Motor power Output Weight Feed

diameter

Dimension
350 7.5kw 180-300kg/h 1.5T ≤5mm 15.0*2.6*3.8m
400 15kw 700-900kg/h 2.5T ≤5mm 16.0*2.6*4.0m

Airflow dryer machine working video

Features of the airflow drying machine

  1. Drying raw materials: rice husk, sawdust, shavings, branches, wood chips, and other granular raw materials after grinding (diameter less than 3mm, length less than 5mm).
  2. The production efficiency: hot air is 180 ℃, relative humidity of 35% of sawdust or rice husk dry to the relative humidity is 10%, the hot air temperature is not lower than 180 ℃, the discharging mouth temperature of 40-50 ℃.
  3. Fuel options: wood (wood), coal, steam or electric heating.
  4. High drying intensity and low equipment investment. Airflow drying machine of large processing, water evaporation capacity, with small size and less investment, is incomparable to other drying machines.
  5. High degree of automation and good product quality. During the drying process, the material is completely carried out in the pipeline, and the drying time is very short (only 2-10 seconds). During this period, the heat is mainly used for water evaporation, and the temperature of the material itself does not rise much, so the temperature has little influence on the product. Therefore, the product does not contact with the outside world, can be small pollution and good quality.
  6. Complete equipment supply and heat source are optional. Users can configure corresponding equipment according to material conditions and process requirements.
  7. As for the selection of heating mode, due to the great adaptability of airflow drying machine, users can choose electric heating, steam heating, heat conduction oil heating, coal burning hot air furnace, gas hot air furnace, steam + electric heating and other combined forms according to the conditions of the location of the equipment.
  8. The basic airflow dryer machine is suitable for loose, small viscosity granular materials, the materials with big viscosity need to be equipped with other corresponding devices.