HG Series Rolling Scratch Board Drier

The operation principle of TG series cylinder type Rotary Drum Roller dryer is to let that the materials in liquid or thick liquid state form the thin film on the surface of the cylinder heated through steam or other thermal carrier. For one turn of the cylinder, the film will complete the drying and the product will be removed through the scraper. The exposed surface of the cylinder will contact the materials again to form the film and carry out the drying, It is suitable for drying liquid raw material or sticky material in chemical industry, dyestuff industry, pharmaceutical industry, foodstuff industry, and metallurgy industry and so on.

Taking the steam or oil as the heat source. The heated area is big. The heat efficiency is high. Heating is uniform.
The drying speed  rate is big. The heat transmission for the wet materials on the cylinder wall is from the inside to the outside and uniform. The temperature gradient is big so as to make that the film surface keeps the stronger evaporation strength
The drying time is short, some 10 - 15s. The machine is suitable for the heat sensitive materials.
The operation is simple. And the maintenance is easy.

1. High thermal efficiency. The principle of heat transfer of rotary drier is heat conduction which heat conducting direction keeps identical with operation cycle. Except cap heat dissipation and radiation loss, all heat energy can be used for evaporating wet materials on the wall of roller. Thermal efficiency could reach 80%-90%.
2. Large operation elasticity and wide application. Various drying factors of the rotary drier can be adjusted, such as density of feeding materials, thickness of materials film, temperature of heating medium, rotating speed of roller etc, which can change drying speed. As these factors have no interrelations with each other, it brings great convenient to dry operation, and makes it applicable to suit various materials and to meet different requirement of production.
3. Short drying period. The drying period of material is normally 10 to 15 seconds, so it is suitable for heat-sensitive material. It can be also working under less pressure condition if it is put in vacuum device.
4. Drying rate is quick. As material film coated on the wall of roller is very thin. Normally thickness is 0.3-1.5 mm, plus heat and mass transfer direction are identical, the evaporation capacity on the surface of film can keep at 15-70kg.H2O/m2.h.

1. Design and production
We solicit buyers opinions widely at the design and production stage of equipment; especially at the stage of plan and elevation arrangement, we give full consideration to buyers’ site conditions and public engineering conditions, and pay concurrent attention to the optimum combination when assuring the quality of equipment.
2. Installation and commissioning
After the equipment is delivered to buyers factory, we will dispatch full-time technical personnel to instruct buyers’ installation and to take charge of commissioning until normal use of the equipment.
3. Training
Before buyers use our equipment normally, our commissioning personnel will organize buyers’ relevant personnel to accept training, which covers the maintenance and care of equipment, timely repair of common faults, and procedures for operation of equipment.
4. Warranty
We provide one-year warranty for our equipment. For damage of equipment arising from non-artificial factors within the warranty period, we will provide repair service for free; and for damage of equipment arising from artificial factors, we will provide repair service in time and collect corresponding cost.
5. Maintenance and period
For damage of equipment after expiration of warranty period, we will provide on-site repair service within 24h/48h for enterprises inside/outside the province after receiving buyers’ notification. The service provided after expiration of warranty period is fee-based, and flat cost will be collected each time when the service is provided.