GT series (single drum · double drum) rotary drum scraper dryer

Working principle

The drum dryer is an internally heated conductive rotating continuous drying equipment. The rotating drum adheres to a thick material film through its lower material groove, and heat is transported to the inner wall of the drum through a pipeline, then transmitted to the outer wall of the drum, and then transmitted to the material film, causing the moisture in the material film to evaporate, dehumidify, and dry the material containing moisture. The dried material is scraped off the drum by a scraper installed on the surface of the drum, and then transported to a spiral conveyor placed below the scraper, where the dry material is concentrated and packaged.

Performance characteristics

◎High thermal efficiency. Due to the heat transfer mechanism of the drum dryer being heat conduction, the heat transfer direction remains consistent throughout the entire operating cycle. Except for heat dissipation and radiation loss from the cover, all other heat is used for the evaporation of the wet content of the drum material film, with a thermal efficiency of 70% -80%.
◎ High operational flexibility and wide applicability. There are many drying factors that can be adjusted for drum dryers. The concentration of the feed, the thickness of the coating film, the temperature of the heating medium, and the rotational speed of the drum can all change the drying efficiency of the drum dryer, and many factors are not related to each other. This brings great convenience to the drum drying operation, making it suitable for drying various materials and different production requirements.
◎Short drying time. The drying cycle of materials is generally only 10-300 seconds, which is suitable for heat sensitive materials. If the drum dryer is set in a vacuum, it can operate under reduced pressure conditions.
◎ High drying rate. Due to the thin film of the coating applied to the cylinder wall, usually between 0.3 and 1.5mm, and the consistent direction of heat and mass transfer, the surface of the film can maintain an evaporation strength of 20-70kg. H2O/m2. h.

Install

The installation of this machine is based on the general layout, with a flat ground and a pressure gauge and safety valve installed at the inlet of the steam pipe. The flanges at each steam inlet are firmly connected.

Adapt to materials

Suitable for drying liquids or viscous materials in industries such as chemical, dye, pharmaceutical, food, metallurgy, etc.

Maintain

Regularly check the rotational flexibility of rotating components for any jamming. Sprockets and other components should be regularly lubricated and pressure gauges and other measuring devices should be regularly calibrated for errors. If there is severe wear on the triangular belt transmission components, they should be replaced in a timely manner.
For maintenance of electric motors and reducers, please refer to the maintenance manual for electric motors and reducers.

Debugging

◎ After the installation of this machine, a trial operation experiment must be conducted first
◎ Inch the main motor to observe the correct rotation of the main drum.
◎ Observe whether the main drum and various transmission components rotate flexibly, whether the steam inlet and outlet are connected, and whether the pressure gauge is within the working pressure range.
◎ Start the motor, and the main drum runs smoothly. When the temperature rises, add materials, and then adjust the motor speed and the uniformity of materials on the drum film to control the final water content of materials.
◎ Start the winding motor, output the dried finished materials, and adjust the winding motor speed according to the amount of dried finished products.

Technical specifications

specifications	Drum size	Effective heating Area m2	drying capacity kg.H2O/m2.h	Steam consumption kg/h	Motor power kw	Boundary dimension mm	weight kg
GT0608	Φ600×800	1.12	40-70	100-175	2.2	1700×800×1500	850
GT0710	Φ700×1000	1.65	60-90	150-225	3	2100×1000×1800	1210
GT0812	Φ800×1200	2.26	90-130	225-325	4	2500×1100×1980	1700
GT1014	Φ1000×1400	3.30	130-190	325-475	5.5	2700×1300×2250	2100
GT1215	Φ1200×1500	4.24	160-250	400-625	7.5	2800×1500×2450	2650
GT1416	Φ1400×1600	5.28	210-310	525-775	11	3150×1700×2800	3220
GT1618	Φ1600×1800	6.79	270-400	675-1000	11	3350×1900×3150	4350
GT1820	Φ1800×2000	8.48	330-500	825-1250	15	3600×2050×3500	5100
GT1825	Φ1800×2500	10.60	420-630	1050-1575	18.5	4100×2050×3500	6150

Note: If needed by the customer, we can design and manufacture an upper feeding double drum dryer.