Go Greener with KMEC Biomass Pellet Mill & Pellet Plant

Dryer-Drum Dryer

Overview
Capable of handling large quantity of raw material, the rotary drum dryer is characteristic of stability, flexibility and adaptability, widely used in the fields of metallurgy, building materials, chemistry and agriculture and also widely applied in pellet plants.
single layer

Multi-layer Dryer

1. Process flow
Regulated by the rationed feeder (equipped with variable frequency motor), fuel in the bunker will be transported into the airheater via chain conveyer to produce dry and hot airflow which will then be induced into the drying drum by the draught fan. The high moisture content feedstock delivered by the belt conveyer will fall into the air lock feeder. Due to the feeder rotation, raw material will flow back to the gyrating drum and mixed with the hot air by shoveling plates so that the material will finally be dried effectively. Thanks to the dip angle of shoveling plate coinciding with the direct flow of the hot air, the material can contact hot air and smoothly flow to the discharge end. The majority of steam can be exhausted out of the chimney at last. Also with the work of fan, dried material will move on to the bottom of the cyclone and discharged. The dryer features continuous work on feeding and discharging. Tail gas will via pipes and fan be emitted from the chimney.

2. Structures
The model consists mainly of bunker, chain conveyer, airheater, feeding devices, rotary drum, pipeline, fans and chimney. The drum is equipped with shoveling plates inside and thermal insulating layers outside and two heads on both ends. On the 4 sets of support wheel are rolling rings. Driven by a motor, the reducer with pinions can drive big gears on the drum to rotate. Technically, the dryer can then be driven to work as a whole.

 Shovelling Plateboardin Three-layer dryer Shovelling Plateboardin Single Layer Dryer

3. Characters
1. Dryer models can be chosen from single drum, bi-layer drum, triple layer one.
2. Highly mechanized, high throughput and continuous running.
3. Elegant structure design (low resistance against flow through the pipeine), simple operation, low maintenance costs and decreased power consumption.
4. A wide range of application (to dewater all kinds of mash and residues with water content less than 85% such as brewery mash, wood sawdust, alcohol mash, fruit residue, saccharified residue, fecula, poultry dung, tailings and so on.)
5. Uniform production and stable performance and high thermal efficiency.
In the process of drying, stability of the roller and uniformity of the airflow will enjoy a full play, with the drum and connected pipeline conveying materials effectively. Thanks to the above principle, drying intensity is increased yet labor investment reduced.

Moist Material Inlet Hot AirInlet
Technical Parameters:

Model Diameter (mm) Length (m) Power(kw) Speed of Rotation (rpm)
HZG6 600 4,5,6,7,8 3-5.5 3-20 adjustable
HZG8 800 4,5,6,7,8,9,10 5.5-7.5 3-20 adjustable
HZG10 1000 6,7,8,9,10,11,12 5.5-7.5 3-20 adjustable
HZG12 1200 6,8,10,12,14,16 7.5-11 3-20 adjustable
HZG15 1500 8,10,12,14,16,18 11-15 3-20 adjustable
HZG18 1800 8,10,12,14,16,18,20 15-18.5 3-20 adjustable
HZG22 2200 10,12,14,16,18,20,22,25 18.5-22 3-20 adjustable
HZG24 2400 12,14,16,18,20,22,25 22-30 3-20 adjustable

Drum dryer is commonly used in the field of agricultural industry and biomass energy, as an ideal adds-on for large-sized biomass pellet plants.