Large Angle Belt Conveyor
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Large Angle Belt Conveyor
A large-angle belt conveyor is a special type of belt conveyor suitable for conveying bulk materials at large angles (even vertical). It combines the advantages of conventional belt conveyors—such as simple structure, reliable operation, and ease of maintenance—with specific benefits like steep-angle conveying, a compact footprint, and space efficiency. Selecting the right steep-angle belt conveyor requires a comprehensive assessment of factors including material characteristics, conveying capacity, lifting height, operating angle, and the working environment. Proper selection is crucial for ensuring long-term, stable operation and minimizing operating costs.
Steep-angle belt conveyors share a high degree of component interchangeability with conventional belt conveyors. Key components—such as drive pulleys, idlers, tensioning devices, intermediate frame supports, tail frames, discharge hoppers, head covers, return-side belt cleaners, and safety protection devices—are interchangeable. A scientifically sound selection and configuration strategy enables the equipment to operate at peak economic efficiency, thereby maximizing the return on investment.
Structural composition of the equipment
The large-angle belt conveyor primarily consists of the following components:
(1) Corrugated sidewall conveyor belt: Composed of a base belt, sidewalls, and cleats. The base belt features enhanced transverse rigidity. The sidewalls are corrugated to allow the belt to navigate the convex and concave curved sections of the conveyor path. Cleats are classified by cross-sectional profile into T, TS, C, TC, and TCS types.
(2) Drive unit: Includes a Y-series electric motor, ZJ-type shaft-mounted gear reducer, and sprag-type backstop. The installation leveling tolerance is ≤0.5 mm.
(3) Drive pulley and bend pulley: Drive pulleys are available with either rubber-lagged or smooth surfaces; bend pulleys are used to alter the direction of the conveyor belt.
(4) Idler sets and frame: Includes various types of idlers. The system utilizes a “Z” configuration, comprising upper horizontal, lower horizontal, and inclined sections.
(5) Take-up device, belt cleaner, and safety devices.
Application scope of the equipment
Large-angle belt conveyors are suitable for industries such as coal, chemical, building materials, metallurgy, power, light industry, grain, ports, and shipbuilding. They are particularly well-suited for applications involving the steep-angle conveying and vertical lifting of bulk materials.
Available raw material types
Large-angle belt conveyors are suitable for transporting various bulk materials with a bulk density of 0.5–2.5 t/m³ and a maximum lump size of approximately 100–250 mm. The operating temperature range is -19°C to +40°C.
The working principle of the equipment
The operating principle of a steep-angle belt conveyor is essentially the same as that of a standard belt conveyor. Structurally, flexible, corrugated rubber “sidewalls” are bonded to both sides of a flat rubber conveyor belt, and transverse cleats—possessing specific strength and elasticity—are attached between the sidewalls to form box-like compartments, enabling the continuous transport of materials within these pockets.
Equipment operating instructions
(I) Pre-start checks: Check all fastening bolts for looseness. Inspect the conveyor belt for damage and the side skirts for cracking. Verify that the backstop is in good condition. Perform a manual rotation check to ensure there are no abnormalities before attempting a test run.
(II) Startup sequence: Start the discharge equipment first, followed by the conveyor. The conveyor must be started under no-load conditions.
(III) Operational monitoring: Ensure uniform material feeding and avoid overloading. Monitor the conveyor belt for smooth operation, checking specifically for belt mistracking or slippage.
(IV) Shutdown procedure: Stop the material feed first; shut down the conveyor only after all material has been fully discharged. Stopping the conveyor while under load is strictly prohibited.
Application of the equipment in the production line
Large-angle belt conveyors play a core role in lifting and transferring materials at large angles in various production lines. In fertilizer production lines, they connect equipment at different elevations, enabling the continuous transport of materials from lower to higher levels. In mining operations and coal yards, they are used to lift ore and coal at steep angles. In grain processing, they elevate raw grain from ground level to processing equipment located on upper floors.