A conveyor scraper is a mechanical conveying device that uses scraper flights or chains to move bulk materials continuously along a fixed trough or enclosed channel. Unlike a conventional belt conveyor, a conveyor scraper pushes or drags the material forward rather than carrying it on a moving belt.

How Does a Conveyor Scraper Work?

A typical conveyor scraper consists of a drive system, chain, scraper flights, conveying trough, tail section, and tensioning device. The motor drives the chain, while the scraper flights move along the trough and push bulk materials toward the discharge point.

6

What Materials Can a Conveyor Scraper Handle?

A conveyor scraper is commonly used for transporting:

• Coal and coke

• Limestone and cement raw materials

• Fly ash and other powdery materials

• Ore and mineral materials

• Fertilizer

• Grain and other granular products

• Industrial waste and abrasive bulk materials

Advantages of a Conveyor Scraper

A conveyor scraper provides a compact solution for continuous bulk-material handling. The enclosed or semi-enclosed conveying structure can help reduce material spillage and dust compared with some open conveying arrangements. The chain-and-scraper design is also suitable for applications where the material is heavy, abrasive, or difficult to handle with conventional belt equipment.

For cement, mining, chemical, fertilizer, power and other industries, a scraper conveyor can be integrated with feeders, crushers, storage bins, weighing systems and other process equipment.

Conveyor Scraper vs. Belt Conveyor

The main difference is the conveying principle:

For industrial material handling, the appropriate conveyor type depends on material characteristics, capacity, conveying distance, installation angle and operating conditions.