HZG series rotary drum dryer

Working principle

After the wet material is put into the dryer at one end, the evenly distributed plate reader inside the inner cylinder flips, and the material is evenly distributed and dispersed within the dryer, fully in contact with the hot air flowing in parallel (counter flow), accelerating the drying heat transfer and transmitting the driving force. During the drying process, the material can be adjusted to move to another section of the star discharge valve of the dryer to discharge the finished product under the action of the inclined plate and hot air flow.

Adapt to materials

Chemical, mining, metallurgy and other industries have large particles and dry materials with a large proportion, such as mining, blast furnace slag, coal, metal powder, phosphate fertilizer, and ammonium sulfate.

Drying of powder and granular materials with special requirements, such as HP foaming agent, distiller's grains residue, lightweight calcium carbonate, activated clay, magnetic powder, graphite, and pharmaceutical residue.

Materials that require low-temperature drying and require continuous drying in large quantities.

Performance characteristics

The rotary dryer has a high degree of mechanization and a large production capacity.

The fluid has low resistance through the cylinder and low functional consumption.

Strong adaptability to material characteristics.

Stable operation, low operating costs, and good uniformity of product drying.

Structural diagram

Technical specifications

model	Direct heating downstream type	Direct heating downstream type	Direct heating countercurrent type	Direct heating countercurrent type	Composite heating	Composite heating
Material type	ore	HP foaming agent	blast furnace slag	ammonium sulfate	phosphate fertilizer	coal
Processing capacity (kg/h)	1000	466	15000	20000	12000	5000
Water content of discharge (%)	30	13	6	1.5	5	6.5
Final moisture content (%)	15	0.3	1	0.1	0.1	0.1
Average particle size (mm)	6.5	0.05	4.7	0.5-1.7	0.5	5
Material stacking density(kg/m3)	770	800	1890	1100	1500	750
Hot air volume(kg/h)	3900	5400	10750	9800	6500	16000
Inlet gas temperature(℃)	600	165	500	180	650	570
Material outlet temperature(℃)		42	100	70	80	75
Heating method	coal gas	Steam electric heating	heavy oil	JRF	heavy oil	heavy oil
loading coefficient		6.3	7	7.5	7.8	18
Speed (rpm)	4	4	3.5	3	4	2
inclination	0.04	0.005	0.03	0.05	0.05	0.043
Number of copied boards	12	24	12	22	Inner cylinder outer 8 Inner cylinder outer 16	6 12
Drier diameter（m）	2.0	1.5	2	2.3	Outer cylinder 2 Inner cylinder 0.84	Outer cylinder 2.4 Inner cylinder 0.95
Dryer length (m)	20	12	17	15	10	16
Drive power (kW)	22	7.5	15	11	11	15