Editorial Technical Reference

Slag Conveyor

This page explains how Slag Conveyor is classified within Basic Metal Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A mechanical system designed to transport slag (molten or solidified waste material) from metallurgical processes to disposal or recycling areas.

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Product Specifications

Technical details and manufacturing context for Slag Conveyor

Definition
The Slag Conveyor is a critical component within the Slag System, responsible for the continuous or batch movement of slag produced during metal smelting, refining, or casting operations. It ensures efficient removal of this byproduct from the primary production area to designated cooling pits, granulation systems, or storage facilities, maintaining process flow and operational safety. Typically, the conveyor uses a motor-driven belt, chain, or screw mechanism. Slag is loaded onto the conveyor via a chute or slag pot, and the moving surface (belt, flights, or trough) transports the material along a predetermined path. For hot slag, conveyors may incorporate heat-resistant materials, water cooling jackets, or air cooling systems to handle high temperatures. The conveyor is available in various configurations to suit different plant layouts and slag characteristics. Key parameters include conveying capacity (50–200 t/h), conveying speed (0.1–0.5 m/s), operating temperature (-20–400 °C), trough width (600–1200 mm), conveying length (10–100 m), drive power (5.5–45 kW), incline angle (0–30°), material grade (Q235B/16Mn per GB/T 700, GB/T 1591), IP rating (IP54–IP65 per IEC 60529), and weight (5–30 t). These values are reference ranges and must be confirmed for the specific model and application. The conveyor is designed for integration into existing slag handling systems, with interfaces for chutes, hoppers, and downstream equipment. When selecting a conveyor, consider slag type (molten or solidified), temperature, lump size, required capacity, and plant layout. Verification questions should address actual operating conditions, material characteristics, and compliance with relevant standards. Maintenance signals include abnormal noise, vibration, belt misalignment, or excessive wear on liners. Failure boundaries include overheating of components, structural fatigue, and blockage. Always verify model-specific values and standards with the legal manufacturer or supplier.
Working Principle
The Slag Conveyor operates using a motor-driven belt, chain, or screw mechanism. Slag is loaded onto the conveyor via a chute or slag pot. The moving surface (belt, flights, or trough) transports the material along a predetermined path. For hot slag, conveyors may incorporate heat-resistant materials, water cooling jackets, or air cooling systems to handle high temperatures. The drive system provides the necessary power to move the load, and the conveyor's speed and capacity are matched to the process requirements. The incline angle affects the material handling, and special flights or cleats are used for steep angles. The conveyor is designed to withstand abrasive and high-temperature conditions, with wear-resistant liners and heat-resistant alloys in critical zones.
Common Materials
Heat-resistant steel alloy, Abrasion-resistant liner plates, Refractory ceramics (for high-temp zones)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Conveying Capacity50–200 t/hHigher capacities require larger trough and drive power.
Conveying Speed0.1–0.5 m/sSpeed affects wear and material cooling.
Operating Temperature-20–400 °CFor molten slag, use water-cooled trough.
Trough Width600–1200 mmWidth matches slag lump size and capacity.
Conveying Length10–100 mLonger runs may need multiple drives.
Drive Power5.5–45 kWDepends on length, capacity, and incline.
Incline Angle0–30 °Above 30° requires special flights or cleats.
Material GradeQ235B/16MnWear-resistant lining optional for abrasive slag.GB/T 700, GB/T 1591
IP RatingIP54–IP65Higher IP for dusty or wet environments.IEC 60529
Weight5–30 tVaries with length and material thickness.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Drive Unit
    Provides mechanical power to move the conveyor belt or mechanism.
    Material: Steel housing, copper windings (motor)
  • Conveyor Belt/Trough
    The load-bearing surface that directly contacts and transports the slag.
    Material: Steel cord reinforced rubber, or abrasion-resistant steel
  • Idlers/Rollers
    Support the belt and reduce friction during operation.
    Material: Steel with sealed bearings
  • Frame Part
    Structural support for the entire conveyor assembly.
    Material: Structural steel
  • Water Cooling Jacket Optional
    Takes the heat out of the trough on hot-slag duty.
  • Flights or Cleats Optional
    Stop the slag sliding back on inclined runs.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 0.5 bar gauge (typically open or lightly pressurized systems)
flow rate: 5-200 tons/hour depending on conveyor type and width
temperature: Up to 800°C for molten slag, ambient to 200°C for solidified slag
particle size: Up to 300mm for solid slag, continuous flow for molten
slurry concentration: N/A (slag typically transported as solid chunks or molten flow, not slurry)
Media Compatibility
✓ Blast furnace slag (iron/steel production) ✓ Copper smelting slag ✓ Aluminum dross and slag
Unsuitable: Highly acidic or corrosive chemical sludges (pH < 2)
Sizing Data Required
  • Required throughput (tons/hour)
  • Slag temperature and state (molten/solidified)
  • Conveyor length and elevation change

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Abrasive wear on conveyor belts and components
Cause: Continuous exposure to hot, abrasive slag particles causing material degradation and thinning
Bearing failure in rollers and drive units
Cause: Heat transfer from hot slag combined with dust ingress leading to lubrication breakdown and premature wear
Maintenance Indicators
  • Excessive vibration or audible grinding noises from conveyor rollers
  • Visible belt misalignment, edge damage, or material spillage along the conveyor path
Engineering Tips
  • Implement regular infrared thermography inspections to detect abnormal heat buildup in bearings and electrical components before catastrophic failure
  • Use abrasion-resistant liners and ceramic-coated components in high-wear areas, and establish a strict lubrication schedule with high-temperature grease rated for slag conveyor operating conditions

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 5048:1989 - Continuous mechanical handling equipment - Belt conveyors with carrying idlers - Calculation of operating power and tensile forces ANSI/CEMA 402-2003 - Belt Conveyors DIN 22101:2011-12 - Continuous conveyors - Belt conveyors for loose bulk materials - Basis for calculation and dimensioning

Quoted from the published standard.

Manufacturing Precision
  • Belt alignment: +/- 5 mm over 10 m length
  • Idler roller runout: 0.5 mm maximum
Quality Inspection
  • Non-Destructive Testing (NDT) - Magnetic Particle Inspection for weld integrity
  • Belt thickness and tensile strength verification per manufacturer specifications

Manufacturers of Slag Conveyor

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Frequently Asked Questions

What is the typical conveying capacity of a Slag Conveyor?

The reference range for conveying capacity is 50–200 t/h, but the actual capacity depends on the specific model, slag characteristics, and operating conditions. Always confirm with the manufacturer.

Can the Slag Conveyor handle molten slag?

The operating temperature range is -20 to 400 °C. For molten slag, a water-cooled trough is recommended. Verify the temperature limits with the supplier for your specific application.

What standards apply to the Slag Conveyor?

Material grades Q235B/16Mn are referenced per GB/T 700 and GB/T 1591, and IP ratings per IEC 60529. These are procurement references; compliance must be verified with the manufacturer.

How do I select the right Slag Conveyor for my plant?

Consider slag type, temperature, lump size, required capacity, conveying length, incline angle, and environmental conditions. Use the reference parameters as a starting point and consult the manufacturer for detailed engineering.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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