35 Tons Per Hour Particle’s drum dryer for Paticle Board Production
Line
7~35 Tons Per Hour Particle’s drum dryer for Paticle Board
Production Line
Description
Wet material is fed via a rotary valve and a specially designed
infeed chute into the rotating drum. There, the heat is transferred
mainly through convection from the drying gases to the material for
water evaporation. At the end of the drum, the material is
pneumatically transported to cyclones where the material is
separated from the drying gases. One portion of the drying gases is
recirculated
to the mixing chamber for energy recovery and reduction of dryer
exhaust volume.
The wet material is fed into the dryer and slowly transported from
one end of the dryer to the other. The preheated dryer air absorbs
the moisture of the chips and dries them. Drying takes place at
approx. 400 °C in a period of approx. 20-30 minutes. Depending on
their size, the chips reach the required residual moisture at
different times. Small, thin chips faster than larger chips. Due to
the high temperatures, there is a risk of spontaneous combustion,
all with small chip particles. Therefore, an automatic spark
detection system is integrated which activates the extinguishing
system in an emergency. The spark detection system detects the
light up and extinguishes with pinpoint accuracy.
At the end of the dryer, the dry material is separated from the
moist and cooled dryer air in cyclones. The chips are passed on via
a drop-out housing and transported further through an air-closing
rotary valve. The moist dryer air is workpiece reused due to the
residual heat. The other workpiece is cleaned by cyclones or fabric
filter and then separated.
Two types of drum dryer system
Main characteristics of drum dryer
- High energy efficiency, waste heat could be recycled to save
energy.
- Low oxygen drying will not get fire easily, more safe.
- Particle’s shape well maintained not damaged during drying.
- Keep particle’s moisture stable.
- Large unit capacity.
Main technical data
| | BGXT7 | BGXT10 | BGXT13 | BGXT15 | BGXT18 | BGXT28 | BGXT35 |
| Capcity of flakes / t/h | 7 | 11 | 13 | 15 | 18 | 28 | 35 |
| Diameter of drum / m | 3.2 | 3.6 | 3.7 | 4 | 4.3 | 4.6 | 5 |
| Length of drum / m | 15 | 18 | 25 | 26 | 28 | 28 | 26 |
| Thermal demand / MW | ~7 | ~10 | ~12 | ~16 | ~19 | ~27 | ~34 |
| Meet the demand of particle board capacity / cbm per day | ~200 | ~300 | ~400 | ~500 | ~700 | ~1000 | ~1250 |
