Waelz Kiln Recover Zinc Oxide From Eaf Dust for Steel Plant

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Production Scope: Product Line
Condition: New
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  • Waelz Kiln Recover Zinc Oxide From Eaf Dust for Steel Plant
  • Waelz Kiln Recover Zinc Oxide From Eaf Dust for Steel Plant
  • Waelz Kiln Recover Zinc Oxide From Eaf Dust for Steel Plant
  • Waelz Kiln Recover Zinc Oxide From Eaf Dust for Steel Plant
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Basic Info.

Model NO.
Rotary Kiln
Automation
Automatic
After-sales Service
Engineers Available to Service Machinery Overseas
Transport Package
Frame Work
Specification
6.5*77m
Trademark
Bullis
Origin
Shangdong
HS Code
8501109101
Production Capacity
500sets/Month

Product Description

The application of metallic zinc is becoming increasingly widespread. Zinc is commonly used as a surface coating for steel products. A large amount of statistical data indicates that the proportion of galvanized scrap steel in EAF raw materials is growing. Consequently, the zinc content in EAF dust is also increasing.
The core of Waelz technology is the reduction of metal oxides such as zinc, lead, and cadmium in a rotary kiln using coke. This technology was initially used for extracting zinc from low-grade zinc ore and later applied to recover metallic zinc from zinc slag. Over the past 30 years, it has been successfully used for electric arc furnace (EAF) dust treatment. Waelz technology can be utilized in both the steel and zinc smelting industries.

Advantages of Recovering EAF Dust Using Waelz Technology

  1. Mature and Reliable Technology - Waelz technology has been widely applied in industrial production, making it a well-established and reliable process.
  2. Simple Equipment Installation - The installation process is straightforward and does not require complex infrastructure.
  3. Outstanding Economic Benefits - The recovered zinc oxide can be used in all zinc smelting plants, while the slag generated after smelting can be utilized for road construction.
  4. Environmental Compliance - Industrial production using Waelz technology ensures that exhaust emissions fully comply with European environmental protection standards.
  5. Operational Flexibility - By modifying the process, various types of dust can be treated efficiently.
  6. Low Energy Consumption - The coke consumption required to process 1 ton of EAF dust is less than 200 kg.
Other EAF dust recycling processes are still in the research or semi-industrial experimental stages, often involving high production costs. These include smelting cyclone separators, shaft furnaces, plasma heating furnaces, and electric heating furnaces. While these alternative processes are not suitable for EAF dust treatment, they are applicable for stainless steel and AOD (Argon Oxygen Decarburization) dust treatment.
Main Technical Specifications
Model Diameter/m Length/m Slope/% Capacity(t/d) Rotating Speed Motor Powder/kw
Φ2.5x40m 2.5 40 3.6 180 0.44-2.44 55
Φ2.5x50m 2.5 50 3.0 200 0.62-1.86 55
Φ2.5x54m 2.5 54 3.5 280 0.48-1.45 55
Φ2.7x42m 2.7 42 3.5 320 0.10-1.52 55
Φ2.8x44m 2.8 44 3.5 450 0.437-2.18 55
Φ3.0x45m 3.0 45 3.5 500 0.5-2.47 75
Φ3.0x48m 3.0 48 3.5 700 0.6-3.48 100
Φ3.0x60m 3.0 60 3.5 800 0.3-2.0 100
Φ3.2x50m 3.5 50 4.0 1000 0.6-3.0 125
Φ3.3x52m 3.3 52 3.5 1300 0.266-2.66 125
Φ3.5x54m 3.5 54 3.5 1500 0.55-3.4 220
Φ3.6x70m 3.6 70 3.5 1800 0.25-1.25 125
Φ4.0x56m 4.0 56 4.0 2300 0.41-4.07 315
Φ4.0x60m 4.0 60 3.5 2500 0.396-3.96 315
Φ4.2x60m 4.2 60 4.0 2750 0.41-4.07 375
Φ4.3x60m 4.3 60 3.5 3200 0.396-3.96 375
Φ4.5x66m 4.5 66 3.5 4000 0.41-4.1 560
Φ4.7x74m 4.7 74 4.0 4500 0.35-4.0 630
Φ4.8x74m 4.8 74 4.0 5000 0.396-3.96 630
Φ5.0x74m 5.0 74 4.0 6000 0.35-4.0 710
Φ5.6x87m 5.6 87 4.0 8000 Max 4.23 800
Φ6.0x95m 6.0 95 4.0 10000 Max 5.0 950*2


Waelz Kiln Recover Zinc Oxide From Eaf Dust for Steel PlantWaelz Kiln Recover Zinc Oxide From Eaf Dust for Steel PlantWaelz Kiln Recover Zinc Oxide From Eaf Dust for Steel Plant


 

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