Chain Conveyor for Clinker and Bulk Materials
Heavy-Duty Enclosed Chain Conveyor for Abrasive and High-Temperature Material Handling
What Is a Chain Conveyor?
A chain conveyor is a mechanical conveying device that uses chains and scraper flights to move bulk material through an enclosed steel trough. Jiangsu LVRUI Machinery manufactures chain conveyors for clinker, slag, limestone, cement, fly ash and other bulk materials requiring stable horizontal or inclined transport under abrasive, dusty or elevated-temperature conditions.
The conveyor can be customized according to the material, required capacity, conveying length, installation angle and connection layout. Chain type, scraper design, trough thickness, wear liner, drive unit, inlet position and outlet arrangement are selected according to the actual operating conditions.
Typical Applications
Enclosed chain conveyors are commonly installed in cement plants, grinding stations, terminals, mineral processing lines and dry bulk material handling systems. Typical applications include:
✅ Conveying clinker between production and storage sections
✅ Transferring slag, limestone and other abrasive materials
✅ Handling collected dust or coarse powder below process equipment
✅ Moving material horizontally between production units
✅ Feeding bucket elevators, crushers, hoppers or storage bins
✅ Conveying material where an enclosed casing is required to reduce dust escape
This equipment is useful when the material is too abrasive, too hot or too coarse for a standard belt or screw conveyor. Material temperature, particle size, moisture and impact load must still be confirmed before selection.
Working Principle
The gear motor drives the head shaft and sprocket, causing the chain and scraper flights to travel continuously through the trough. Material enters through the inlet and is pushed or dragged toward the discharge outlet.
Chain speed is generally kept relatively low to limit impact, dust generation and wear. Stable operation depends on correct chain tension, aligned sprockets, controlled feeding and an unobstructed discharge outlet.
A slide gate, feeder or other upstream control device may be required when the conveyor is installed below a hopper or silo. This helps prevent uncontrolled material loading and reduces the risk of overload.
Suitable Materials
The equipment can be configured for:
✅ Cement clinker
✅ Granulated or crushed slag
✅ Limestone and mineral materials
✅ Cement and coarse cement powder
✅ Fly ash and collected dust
✅ Coal ash and other dry bulk solids
Fine, highly aeratable powder may be better suited to an air slide conveyor. Long-distance transport of cooler and less abrasive material may be more economical with a belt conveyor, while vertical lifting should normally be handled by a bucket elevator.
Wet, sticky or strongly compacting materials require separate evaluation because buildup inside the trough can increase chain load and component wear.
Main Components
A typical LVRUI chain conveyor can include:
✅ Enclosed steel trough with inspection covers
✅ Heavy-duty chains and scraper flights
✅ Head and tail sprocket assemblies
✅ Gear motor and chain tensioning device
✅ Replaceable bottom and side wear liners
✅ Customized inlets, outlets and support frames
The final configuration depends on the conveying duty. Abrasive clinker or slag may require thicker liners and reinforced scrapers. Elevated-temperature applications require confirmation of the chain, bearings, seals and lubrication arrangement.
For general engineering reference, ISO 1977 specifies characteristics for conveyor chains, attachments and associated sprockets used in conveying and mechanical handling applications.
Technical Specifications
| Model | Width (mm) | Capacity (t/h) | Speed (m/s) | Material Temp | Motor (kW) |
|---|---|---|---|---|---|
| LRMC200 | 200 | 10–40 | 0.16–0.32 | ≤ 200°C | 2.2–7.5 |
| LRMC300 | 300 | 40–80 | 0.16–0.32 | ≤ 200°C | 4–11 |
| LRMC400 | 400 | 80–150 | 0.16–0.32 | ≤ 200°C | 7.5–15 |
| LRMC500 | 500 | 150–250 | 0.16–0.32 | ≤ 200°C | 11–22 |
*The values above are for preliminary reference only. Actual capacity and motor power depend on bulk density, particle size, moisture, material temperature, conveying length, inclination, inlet loading and operating conditions.
Applications above 200°C require separate technical confirmation. The chain, scraper flights, bearings, seals, liners and lubrication arrangement must all be evaluated for the actual temperature.
Key Features
✅ Enclosed Material Transport
The enclosed steel casing helps reduce material leakage and airborne dust during conveying.
✅ Heavy-Duty Chain and Scraper Design
The chain and scraper assembly is selected according to material load, particle size and operating duty.
✅ Wear Protection for Abrasive Materials
Replaceable wear-resistant liners help protect the trough and simplify maintenance.
✅ Horizontal or Inclined Conveying
Horizontal and inclined configurations are available according to the process layout.
✅ Customized Inlets and Outlets
Inlet and outlet positions, quantities and flange dimensions can be customized.
✅ Easy Inspection and Maintenance
Inspection covers provide access for checking chains, scrapers, sprockets and liners.
How to Choose the Right Conveyor
A chain conveyor is suitable for abrasive, coarse or elevated-temperature materials that require enclosed horizontal or inclined transport.
For long-distance conveying of cooler materials, a belt conveyor may be more economical. A screw conveyor is generally used for short-distance powder transfer, while an air slide conveyor is suitable for dry, aeratable fine powder. For vertical lifting, a bucket elevator is normally recommended.
The final selection should consider material properties, capacity, temperature, conveying distance and installation layout.
Information Required for Chain Conveyor Selection
Please provide the following details before quotation:
| Required Information | Details |
|---|---|
| Material | Name, bulk density, particle size and moisture |
| Material Temperature | Normal and maximum operating temperature |
| Required Capacity | Conveying rate in t/h or m³/h |
| Conveying Distance | Horizontal length and total center distance |
| Installation Angle | Horizontal or inclined arrangement |
| Inlet Conditions | Feed method, inlet quantity and expected loading |
| Outlet Arrangement | Outlet quantity, position and flange dimensions |
| Operating Schedule | Continuous or intermittent operation |
| Wear Conditions | Abrasiveness and expected operating hours |
| Site Layout | Process drawing or installation dimensions |
For installations below a silo or hopper, the discharge opening and feeding control method should also be provided. These conditions affect chain load, drive power and the risk of material buildup.
Providing a process or installation drawing helps confirm the inlet position, outlet direction, drive arrangement and available maintenance space.
Manufacturing, Inspection and Delivery
LVRUI manufactures each unit according to the approved drawing and order requirements. Carbon steel is commonly used for the conveyor casing, while liner thickness, scraper design, chain specification and surface treatment are selected according to the application.
Before shipment, the equipment can be checked for main dimensions, assembly condition, chain movement, rotation direction and external appearance.
Large conveyors may be divided into transport sections according to container limitations. The sections can then be reassembled by the customer or local installation team at the project site.
FAQs About Chain Conveyor
What materials can a chain conveyor handle?
It can be configured for clinker, slag, limestone, cement, fly ash, collected dust and other dry bulk materials. Selection must consider temperature, abrasiveness, particle size, moisture and bulk density.
Can it convey high-temperature clinker?
Yes. A suitable configuration can handle elevated-temperature clinker. Standard reference models may be designed for material temperatures up to 200°C, but the actual limit depends on the chain, scrapers, liners, bearings, seals and lubrication. Higher temperatures require separate confirmation.
What is the difference between a chain conveyor and a belt conveyor?
A chain conveyor uses chains and scraper flights inside a steel trough, making it suitable for abrasive, coarse or hotter materials. A belt conveyor is generally more economical for longer-distance transport of cooler and less abrasive bulk material.
Can the conveyor operate on an incline?
Yes, but the acceptable angle depends on material characteristics and scraper design. Inclined operation can reduce conveying capacity and increase power demand, so the angle must be confirmed during selection.
How can chain and liner wear be reduced?
Correct chain tension, aligned sprockets, controlled feeding, suitable chain speed and regular removal of material buildup are important. Replaceable liners and reinforced scrapers can also be used for abrasive applications.
What information is required for a quotation?
Please provide the material, capacity, temperature, particle size, conveying length, installation angle, inlet and outlet dimensions, operating time and a layout drawing. This information allows LVRUI to recommend a suitable configuration.
Need a Chain Conveyor for Your Application?
Send us your material, required capacity, conveying distance, operating temperature, and layout drawing. LVRUI will recommend a suitable chain conveyor configuration for your working conditions.
✅ Customized Design Based on Material and Layout
✅ Heavy-Duty Chain, Scraper and Wear Liner Options
✅ Factory Assembly and Inspection Before Shipment
✅ Export Packing and Delivery Support