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What is Rotary Kiln?
Rotary kiln is composed of cylinder, gears, support device, kiln liner and kiln tail sealing equipment, kiln head hood and combustion. Cylinder as heated pivoting part, made of high-quality carbon steel plate.
Rotary Kiln Features: 1. Support device: advanced shaft structure, automatic temperature measuring device and electrical heating,.2. Catch wheel: including two kinds mechanical wheel and hydraulic pressure3. Gears: single or double. Control the rotating speed by buncher, DE machine and frequency variable motor. Be reliable, energy-saving, and efficient.4. Cylinder tyre bolster: lower bolster has three types: fixed, zoom and floating. The structure is simple, replacement is convenient and won’t hurt cylinder.5. Sealing equipment: there are many kinds for choice according to kiln models, including air cylinder edge sealing, spring edge sealing, and graphite block sealing and combination for above.
6. Kiln head hood: including stationary type and flexible type.
Working Principle of Rotary Kiln:
1) With a certain slope to the level, the whole kiln body is supported by rollers and fitted with thrust rollers to control up and down movement of the kiln body.
2) Besides main driving unit for driving system, it is also fitted with the auxiliary driving unit so as to ensure the kiln body still can rotating when the main motor is powered off and prevent it from deforming.
3) The kiln head adopts housing type sealing and kiln rear uses axial contact sealing unit so that reliability of sealing could be ensured.
Types:
Rotary kiln belongs to building material equipment, and it can be divided into cement kiln, metallurgy chemical kiln and active lime kiln, porcelain kiln according, building material kiln, calcined petroleum coke rotary kiln to different materials.
Application of Rotary Kiln:
1) Rotary kiln is the Thermal Equipment, heating materials, in cement industry for calcining clinker.
2) It is also used in various industries, such as cement, nonferrous metallurgy, ferrous metallurgy, chemistry, building, refractory material, environmental protection, etc.
Technical parameters:
| Specification | Capacity(t/d) | Incline of body(°) | Speed(r/min) | Main motor(kw) | Remarks |
| Φ2.5*60 | 168 | 3.5 | 0.516-1.549 | 75 | Alumyte-alumina forge kiln |
| Φ3*48 | 700 | 3.5 | 0.726-3.63 | 110 | Kiln with 5-stage cyclone precalciner |
| Φ3*60 | 3.5 | 0.492-1.476 | 75 | Alumyte-alumina forge kiln | |
| Φ3*100.94 | 450 | 4 | 0.3-1.503 | 90 | Multiple-drum cooling |
| Φ3.2*46 | 1000 | 3.5 | 0.36-3.57 | 160 | kiln with preheater precalcine |
| Φ3.2*52 | 1200 | 3.5 | 0.343-0.34 | 125 | kiln with preheater |
| Φ3.3*50 | 1300 | 3.5 | 0.676-3.38 | 160 | kiln with plateau suspension preheater |
| Φ3.3*52 | 1300 | 3.5 | 0.266-2.66 | 125 | kiln with preheater precalcine |
| Φ3.5*54 | 1500 | 3.5 | 0.55-3.4 | 220 | kiln with preheater precalcine |
| Φ3.6*70 | 1800 | 3.5 | 0.25-1.25 | 125 | Generating kiln for using ofterheat |
| Φ4*60 | 2500 | 3.5 | 0.396-3.96 | 315 | kiln with preheater precalcine |
| Φ4.15*58 | 5 | 0.35-0.7 | 110 | Zinc leaching(calcine rotary kiln) | |
| Φ4.2*60 | 3000 | 4 | 0.4-3.98 | 375 | |
| Φ4.3*60 | 3500 | 3.5 | 0.396-3.96 | 375 | kiln with preheater precalcine |
| Φ4.5*66 | 4000 | 3.5 | 0.41-4.1 | 560 | kiln with preheater precalcine |
| Φ4.8*74 | 5000 | 4 | 0.396-3.96 | 630 | kiln with preheater precalcine |
| Φ5.0*74 | 6000 | 4 | 0.35-4 | 710 | kiln with preheater precalcine |
| Φ5.6*87 | 8000 | 4 | Max4.23 | 800 | kiln with preheater precalcine |
| Φ6.0*95 | 10000 | 4 | Max5 | 950*2 | kiln with preheater precalcine |
Manufacturing Process of Rotary Kiln: