Furra rrotulluese
Një furrë rrotulluese është e madhe, cylindrical thermal processing equipment used in various industries to heat materials at high temperatures (typically between 800°C and 2000°C) in a continuous or batch process. It consists of a rotating steel shell lined with refractory materials, tilted slightly to allow material to move from the feed end to the discharge end.
Përbërësit kryesorë të një furre rrotulluese
1. Rotating Shell: Një e gjatë, cylindrical steel tube that rotates slowly (0.5–5 RPM) on supporting rollers.
2. Rreshtim zjarrdurues: Protects the shell from extreme heat and chemical reactions.
3. Sistemi i drejtimit: Includes motor, kuti ingranazhi, and girth gear for rotation.
4. Mbështetja Rollers & Thrust Rollers: Bear the kiln’s weight and maintain alignment.
5. Djegëse & Sistemi i karburantit: Provides heat (gazit, vaj, qymyr, ose lëndë djegëse alternative).
6. Sistemi i vulosjes: Prevents air leakage at inlet/outlet ends.
7. Exhaust System: Removes gases and dust.
Types of Rotary Kilns
- Direct-Fired Kiln: Heat is applied directly to the material (p.sh., çimento, lime).
- Indirect-Fired Kiln: Material is heated through an external jacket (p.sh., calcination of chemicals).
- Co-Current vs. Counter-Current Flow: Depending on gas-material flow direction.
Aplikacionet
1. Prodhimi i Çimentos (Clinker formation)
2. Lime Calcination (CaCO3 → CaO + CO₂)
3. Metalurgji (Iron ore pelletizing, alumina calcination)
4. Trajtimi i Mbetjeve (Hazardous waste incineration)
5. Chemical Processing (TiO₂ production, phosphate calcination)
6. Përpunimi i mineraleve (Kaolin, gipsi)
Avantazhet
- High thermal efficiency
- Continuous operation
- Ability to handle abrasive/high-temperature materials
- Versatile fuel options
Sfidat
- High capital & kostot e mirëmbajtjes
- Refractory wear over time
- Emissions control requirements
Dëshironi detaje për një lloj ose aplikacion specifik?
