Belt Conveyor

A belt conveyor is a type of transport machinery that utilizes a conveyor belt as both the traction and load-bearing element, relying on friction drive to facilitate continuous material transport. Widely used across industries such as mining, metallurgy, coal, power generation, port operations, chemicals, and building materials, it is one of the most fundamental pieces of material handling equipment in industrial production.

Structural composition of the equipment

Belt conveyors are primarily composed of the following components:

(I) Conveyor belt: Serves as both the load-bearing and traction element.

(II) Drive unit: Includes the electric motor, gear reducer, drive pulley, etc.

(III) Idlers: Include types such as troughing idlers, flat idlers, self-aligning idlers, and impact (cushion) idlers.

(IV) Pulleys: Include drive pulleys and bend (redirecting) pulleys.

(V) Tensioning device: Types include screw, carriage, counterweight, and hydraulic systems.

(VI) Frame: Supports all components.

(VII) Auxiliary devices: Includes safety and protection devices such as belt cleaners, discharge devices, belt sway switches, speed switches, and pull-cord switches.

Application scope of the equipment

Belt conveyors are widely used across various industries requiring continuous material transport, including mining, metallurgy, coal, electric power, ports, chemicals, building materials, grain, organic fertilizers, and compound fertilizers.

Types of usable raw materials

Belt conveyors can transport bulk materials (such as coal, crushed stone, sand, cement, fertilizer, and grain) as well as packaged goods (individual items weighing less than 100 kg). Generally, the temperature of the conveyed material should be below 60°C.

The working principle of the equipment

The working principle of a belt conveyor is as follows: the conveyor belt forms a closed loop by passing around the drive pulley and various redirection pulleys, with appropriate tension applied by a tensioning device. During operation, the drive unit transmits power through the friction between the drive pulley and the conveyor belt, driving the belt in continuous motion. Material is loaded onto the belt at the feed end and transported to the discharge end for unloading. The equipment must be started under no-load conditions.

Equipment operating instructions

(I) Pre-start checks: Adjust the conveyor belt tension and ensure belt fasteners are secure; verify that drive components—such as bearings, gears, and chains—are in good condition; ensure all idlers and safety guards are in place; and confirm that electrical protective grounding or neutral connections are sound.

(II) No-load startup: Start the belt conveyor without a load; feed material only after the system is running smoothly. Starting the conveyor after material has already been loaded is prohibited.

(III) Operational monitoring: Ensure uniform material feeding during operation to avoid overloading. Monitor the belt for smooth movement and check for any misalignment (belt drift); stop the machine to make adjustments if misalignment occurs.

(IV) Shutdown procedure: Completely discharge all material before stopping the machine; do not shut down until the belt has been fully cleared of material.

Equipment maintenance methods

Daily Maintenance: Clean residual material and dust from the equipment after each shift. Inspect the conveyor belt for damage and check joints for looseness. Check the lubrication status of roller bearings and replenish grease promptly.

Periodic Maintenance: Regularly tighten bolts and nuts. Periodically check conveyor belt alignment. Regularly inspect idlers and other components, replacing any damaged parts.

Lubrication Management: Add lubricant promptly to ensure proper bearing lubrication. Change gear oil in the speed reducer according to the prescribed schedule.

Target audience for the device

The target audience for belt conveyors primarily includes: managers responsible for material transport in sectors such as mining, metallurgy, coal, electric power, and ports; equipment procurement and production management personnel at organic and compound fertilizer plants; managers overseeing conveying equipment in the building materials, cement, and chemical industries; warehouse managers at grain depots and feed processing plants; construction managers at building sites and sand/gravel yards; as well as various manufacturing enterprises seeking to implement continuous material transport and enhance production automation.