Working principle
After the wet material into the dryer from one end of the inner cylinder cloth copy board is turning, the material in the dryer uniformly distributed and dispersed, and full contact with and flow (countercurrent) hot air to speed up the drying heat, transmitted driving force. During the drying process, the material under the action of the copy board and hot air with the inclination, adjustable moved to another section of the dryer exhaust discharge valve star products.
Features
◎Drum drier high degree of mechanization, large production capacity.
◎Fluid through the barrel resistance, low consumption function.
◎The material characteristics of strong adaptability.
◎Stable operation and low operating costs, the dried product uniformity.
Adapt materials
◎ chemical, mining, metallurgy and other industries large particles, heavy dry materials, such as: mining, blast furnace slag, coal, metal powder, phosphate, ammonium sulfate.
◎ there are special requirements powder dry granular materials, such as: HP vesicant, lees residue, precipitated calcium carbonate, activated clay, magnetic powder, graphite, dregs.
◎ low-temperature drying requirements, and need large quantities of continuous drying of materials.
Technical Specifications
| Model | Direct heating Downstream | Direct heating Downstream | Direct heating countercurrent | Direct heating countercurrent | Compound Heat | Compound Heat |
| Type of material | Ore | HP foaming agent | Blast furnace slag | Ammonium | Phosphate | Coal |
| Capacity(kg/h) | 1000 | 466 | 15000 | 20000 | 12000 | 5000 |
| The water content(%) | 30 | 13 | 6 | 1.5 | 5 | 6.5 |
| Final water content(%) | 15 | 0.3 | 1 | 0.1 | 0.1 | 0.1 |
| The average particle size(mm) | 6.5 | 0.05 | 4.7 | 0.5-1.7 | 0.5 | 5 |
| Accumulation of heavy material(kg/m3) | 770 | 800 | 1890 | 1100 | 1500 | 750 |
| Amount of hot air(kg/h) | 3900 | 5400 | 10750 | 9800 | 6500 | 16000 |
| Inlet air temperature(oC) | 600 | 165 | 500 | 180 | 650 | 570 |
| Material outlet temperature(oC) | 42 | 100 | 70 | 80 | 75 | |
| Heating method | Gas | Electric heating steam | Heavy oil | Coal-fired stove | Heavy oil | Heavy oil |
| Charge coefficient | 6.3 | 7 | 7.5 | 7.8 | 18 | |
| Rotating speed(rpm) | 4 | 4 | 3.5 | 3 | 4 | 2 |
| Inclination | 0.04 | 0.005 | 0.03 | 0.05 | 0.05 | 0.043 |
| Copy number plate | 12 | 24 | 12 | 22 |
Inner and outer tube8 Inner and outer tube16 |
6 12 |
| The diameter of the dryer(m) | 2.0 | 1.5 | 2 | 2.3 |
The outer cylinder2 Inner tube0.84 |
The outer cylinder22.4 Inner tube0.95 |
| Dryer length(m) | 20 | 12 | 17 | 15 | 10 | 16 |
| Driving power(kw) | 22 | 7.5 | 15 | 11 | 11 | 15 |
