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Syed Rashid Ahmed ButtShaanxi Chengda Industrial Furnace Co., Ltd. completó la puesta en marcha del horno de arco eléctrico, los trabajadores cooperaron cuidadosamente con los ingenieros de Chengda para aprender y operar el equipo,mostrando la profunda amistad y la excelente cooperación entre los pueblos de China y Pakistán. -
AboubacarDespués de más de un mes de producción intensa y depuración,Se han puesto en funcionamiento con éxito 2 conjuntos de equipos de cámara de sedimentación de gases de combustión de intercambio de calor ~ Todo el personal involucrado en el proyecto ha trabajado duro- ¿ Qué pasa? -
¿ Qué haces aquí?Felicitaciones calurosas a la compañía de fabricación de hornos industriales de Shaanxi Chengda en Corea del Sur.Instalación y fabricación cuidadosa y puesta en marcha estricta del equipo de los hornos de fundición de metales preciosos del condado norte de Chungcheong, esperando el futuro en más campos para lograr una cooperación mutuamente beneficiosa y beneficiosa!
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Aluminum Ash Treatment Equipment with 1550-1650℃ Melting Temperature, 750-850kWh/t Power Consumption, and 60-160t Daily Treatment Capacity
| Lugar de origen | Porcelana |
|---|---|
| Nombre de la marca | Shaanxi Chengda |
| Certificación | ISO 9001 |
| Número de modelo | Negociar en función de la capacidad de procesamiento del equipo. |
| Cantidad de orden mínima | 1 unidad |
| Precio | The price will be negotiated based on the technical requirements and supply scope of Party A |
| Detalles de empaquetado | Discutir de acuerdo con los requisitos específicos de la Parte A. |
| Tiempo de entrega | 2 meses |
| Condiciones de pago | LC, T/T, Unión Occidental |
| Capacidad de la fuente | Completar la cadena de suministro de producción, suministrar a tiempo y cumplir con los estándares d |
Datos del producto
Descripción de producto
Introduction to Equipment and Parameters
I. Process Principle
Using aluminum ash (containing Al₂O₃, metallic Al, AlN and a small amount of salts) and CaO (lime) as raw materials, solid-phase/liquid-phase reactions occur in an electric furnace at high temperature of 1550–1650℃:
- Main reaction: 3CaO + Al₂O₃ → 3CaO·Al₂O₃ (calcium aluminate)
- Side reactions: Oxidation/reduction conversion of AlN and metallic Al; volatilization and removal of salts
- Product: Pre-melted calcium aluminate (steelmaking refining slag, deoxidizer/desulfurizer)
II. Core Equipment Composition (Complete Production Line)
1. Pretreatment System
- Crushing and Screening Machine: Crushes aluminum ash to ≤50mm, removes iron and impurities
- Batching Station: Automatic metering of aluminum ash, CaO, reducing agent (coke) and modifier (MgO)
- Ratio: Aluminum ash 40–65%, CaO 35–45%, MgO 0–15%
- Mixer/Briquetting Machine: Mixes materials evenly; briquetting is available to increase melting speed
2. Core Equipment: Calcium Aluminate DC Electric Arc Furnace
Structure
- Furnace body: Round/square, steel shell + composite refractory lining (corundum-mullite/magnesia-chrome brick)
- Electrode: Graphite electrode (double/three electrodes)
- Power supply: DC rectifier power supply (1000–10000kVA)
- Furnace tilting mechanism: Hydraulic tilting (for slag discharge)
- Cooling system: Water cooling for furnace shell and electrode chuck
- Flue gas system: Purification of high-temperature flue gas, fluoride and salt mist
Main Models and Parameters (DC Furnace)
| Parameter | Typical Value (3000kVA / 6300kVA) |
|---|---|
| Transformer Capacity | 3000kVA / 6300kVA |
| Operating Voltage | 150–300V |
| Operating Current | 8–15kA / 15–25kA |
| Melting Temperature | 1550–1650℃ |
| Melting Cycle | 45–60min/heat |
| Daily Aluminum Ash Treatment Capacity | 60–80t / 120–160t |
| Power Consumption | 750–850kWh/t product |
| Electrode Consumption | 3–5kg/t (40% lower for DC than AC) |
| Lining Service Life | 300–500 heats |
Technical Advantages (DC vs AC)
- Electrode consumption reduced by 40%
- No reactive power compensation required, lower investment
- Noise reduced by 10–20dB
- Strong electromagnetic stirring, uniform composition and fast melting speed
- Insulating shell easily formed in case of power failure, protecting furnace lining
3. Post-treatment System
- Slag Discharge/Cooling: Tapping of hot slag → water quenching/air cooling → crushing
- Crushing and Screening Line: Jaw crusher + roller crusher + vibrating screen
- Finished particle size: 1–10mm, 10–50mm (for steelmaking)
- Overscreened powder returned to furnace for remelting
- Storage and Packaging: Finished product silo, automatic packaging (25/50kg/bulk bag)
4. Environmental Protection Supporting Facilities
- Flue Gas Purification:
- Quench tower (temperature controlled below 200℃)
- Bag filter (fluoride adsorption)
- Alkaline washing tower (removal of HCl, F⁻ and salt mist)
- Wastewater: Cooling circulating water + small amount of acid-base neutralization
- Solid Waste: Almost no secondary waste residue (full conversion)
III. Product: Calcium Aluminate (Finished Product Indexes)
- Main phases: 3CaO·Al₂O₃, 12CaO·7Al₂O₃
- Typical composition (wt%):
- Al₂O₃: 55–65%
- CaO: 30–40%
- MgO: 2–5%
- SiO₂: ＜3%
- F⁻, S, P: ＜0.1%
- Application: Pre-melted refining slag for steelmaking, high-efficiency desulfurizer, deoxidizer
IV. Technical Features
- Resource utilization: Turns aluminum ash into treasure, Al₂O₃ utilization rate >90%
- Harmless treatment: Decomposition of AlN, removal of salts, solidification of heavy metals
- High efficiency: Short single-heat cycle, high continuity and automation
- Low consumption: Significantly lower power and electrode consumption of DC furnace than traditional processes
V. Selection Suggestions
- Small-scale line: 1250–3000kVA DC furnace, daily treatment capacity 30–80t aluminum ash
- Medium-scale line: 3000–6300kVA DC furnace, daily treatment capacity 80–160t aluminum ash
- Large-scale line: 6300–10000kVA DC furnace, daily treatment capacity 160–300t+ aluminum ash
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