A Scraper Conveyor is a mechanical conveying system designed to transport bulk materials horizontally or at an inclined angle using moving scraper chains installed inside a closed or semi-closed trough.

The scraper chain continuously moves along the conveyor, pushing materials from the feeding point to the discharge outlet. Scraper conveyors are widely used in cement plants, mining, metallurgy, coal, chemical, and fertilizer industries.

1. Working Principle of Scraper Conveyor

The scraper conveyor mainly consists of a driving device, head sprocket, tail sprocket, scraper chain, scrapers, conveyor trough, and tensioning device.

Its working process is as follows:

1. Material Feeding: Bulk materials enter the conveyor trough through the feeding inlet.

2. Chain Movement: The motor drives the reducer and head sprocket, causing the scraper chain to move continuously.

3. Material Conveying: Scrapers attached to the chain push materials forward along the bottom of the trough.

4. Material Discharging: Materials are transported to the discharge outlet and released into the next production process.

5. Continuous Operation: The chain circulates continuously to achieve stable and efficient material conveying.

2. Main Components

• Driving Device: Provides the power required for conveyor operation.

• Scraper Chain: Transfers power and moves materials.

• Scraper Plates: Push bulk materials along the conveyor trough.

• Conveyor Trough: Supports and guides the materials during transportation.

• Head and Tail Sprockets: Drive and guide the scraper chain.

• Tensioning Device: Maintains proper chain tension.

3. Applications of Scraper Conveyor

Scraper conveyors are suitable for conveying various bulk and granular materials, including:

• Cement Industry: Cement raw materials, clinker, limestone, and gypsum.

• Mining Industry: Coal, ore, mineral powder, and other bulk materials.

• Chemical Industry: Chemical powders and granular materials.

• Metallurgical Industry: Slag, dust, and industrial residues.

• Fertilizer Industry: Granular fertilizer and raw materials.

• Power Plants: Coal ash and other bulk materials.

4. Advantages of Scraper Conveyor

• Enclosed conveying structure helps reduce dust pollution and material spillage.

• Compact design requires relatively little installation space.

• Suitable for continuous material transportation.

• Strong conveying capacity and reliable operation.

• Can be designed for horizontal or inclined conveying.

• Customizable conveyor length, width, and conveying capacity.

5. Scraper Conveyor from Weifang Zhitian

WEIFANG ZHITIAN provides industrial scraper conveyor solutions for bulk material handling applications.

Our scraper conveyors can be customized according to material characteristics, conveying capacity, installation conditions, and production-line requirements.

The equipment is suitable for cement, mining, coal, chemical, metallurgy, and fertilizer production lines.

Conclusion: A scraper conveyor is an efficient bulk material conveying machine that uses a moving chain and scraper plates to transport materials through a trough. Its enclosed structure, reliable operation, and flexible design make it an important conveying solution for industrial production systems.