Three Pass Rotary Dryer for Drying Sawdust Woodchips and Sands 

Three pass dryer is a dryer machine combined of three homocentric cylinders with different diameters inside.  Due to its special and compact structure design, the length of its main part will be just one third of one single pass cylinder if based on the productivity, thus it definitely save working space and investment a lot.  

Adopting roller and belt friction transmission, the three pass dryer has a low power consumption of transmission and also reduces the noise of equipment. Sealing system of the three pass dryer adopts a micro touch technology, has a better sealing effect, reducing the dust pollution.

The three pass dryer could use coal, oil, gas and other various fuels as its power motivation, can dry lump stuff, particle shape, powders, wood chips and so on. According with a policy of creating an friendly-environment, the three pass dryer is an environmental protection and energy-saving dryer machine which is the replacement of traditional drying equipment.

Advantages:

l   Save 60% working space and 30% investment comparing with one single pass dryer machine

l   With self-insulation Cylinder, thermal efficiency is as high as 80%; saving coal consumption.

l   Long term of service life and easy to maintenance, made of heat & wear-resist alloy steel plate.

l   Output of low temperature.

l   No need of reducer--adopting roller rotation design.

l   The final moisture of dried material could keep under 0.5%-1%, suitable for different material drying.

l   Burning coke is only 5KG/ton sand.

The Models of Three pass Dryer: