روٽري ڀٽي
گھمڻ وارو ڀُٽو ھڪڙو وڏو آھي, 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.
روٽري ڀٽي جا اھم اجزاء
1. Rotating Shell: هڪ ڊگهو, cylindrical steel tube that rotates slowly (0.5–5 RPM) on supporting rollers.
2. ريفريٽري استر: Protects the shell from extreme heat and chemical reactions.
3. ڊرائيو سسٽم: Includes motor, گيرو باڪس, and girth gear for rotation.
4. سپورٽ رولر & Thrust Rollers: Bear the kiln’s weight and maintain alignment.
5. ساڙيندڙ & ٻارڻ جو نظام: Provides heat (گيس, تيل, ڪوئلو, يا متبادل ٻارڻ).
6. سيلنگ سسٽم: 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 (مثال, سيمينٽ, lime).
- Indirect-Fired Kiln: Material is heated through an external jacket (مثال, calcination of chemicals).
- Co-Current vs. Counter-Current Flow: Depending on gas-material flow direction.
درخواستون
1. سيمينٽ جي پيداوار (Clinker formation)
2. Lime Calcination (CaCO₃ → CaO + CO₂)
3. ڌاتو (Iron ore pelletizing, alumina calcination)
4. فضول علاج (Hazardous waste incineration)
5. ڪيميائي پروسيسنگ (TiO₂ production, phosphate calcination)
6. معدني پروسيسنگ (Kaolin, جپسم)
فائدا
- High thermal efficiency
- Continuous operation
- Ability to handle abrasive/high-temperature materials
- Versatile fuel options
چئلينجز
- High capital & سار سنڀال جي خرچ
- Refractory wear over time
- Emissions control requirements
ڇا توھان چاھيو ٿا تفصيل ڪنھن مخصوص قسم يا ايپليڪيشن تي?
