In industrial fields such as metallurgy, chemical engineering, power generation, and building materials, slag conveyors, as key equipment, undertake the core task of removing solid wastes such as furnace slag and ore slag. Through efficient automated processing, they significantly improve production efficiency, reduce labor costs, contribute to the achievement of environmental protection goals, and promote resource recycling. The following comprehensively analyzes the functions and applications of slag conveyors from aspects such as structure, classification, selection, and technological innovation.

 

Core Structure and Key Components

A slag conveyor usually consists of core components such as a slag hopper, a bottom cover, longitudinal beams, a weight frame, a main shaft, and bearings. Its design emphasizes durability and functionality. For example, a buffer brake can reduce mechanical impact, a water sprayer and an overflow device are used to assist in slag separation, and a limiter ensures operational stability.

 

Mainstream Classification and Applicable Scenarios

1. Chain Bucket Slag Conveyor: It drives buckets through a chain to dig up slag materials cyclically. It is suitable for continuous transportation of high - temperature and large - particle slag materials, commonly used in the treatment of metallurgical furnace slag.

2. Scraper Slag Conveyor: It uses scrapers to push slag materials in a trough. It is suitable for cleaning slag with high moisture content or chemical waste, with the advantage of low dust generation.

3. Screw Slag Conveyor: It relies on the rotation of spiral blades to push materials. It is suitable for narrow environments with limited space, such as the treatment of powdery residues in the building materials industry.

4. Vibrating Slag Conveyor: It realizes slag - liquid separation through the vibration of the sieve surface. It is mostly used in the wet slag discharge system of the power industry to improve the drying efficiency of slag materials.

5. Hydraulic Slag Conveyor: It uses high - pressure water flow to wash away slag materials. It is suitable for cleaning fine waste in light industries (such as papermaking and food processing), with both cleaning and environmental protection features.

6. Disc/Frame Chain Slag Conveyor: It is designed for high - load scenarios, such as the treatment of heavy - duty slag, with strong wear resistance and large - capacity conveying ability.

 

Selection Points and Operation Specifications

- Working Condition Compatibility: The type of equipment should be selected according to the physical characteristics of the slag material, such as hardness, humidity, and particle size. For example, a scraper type is suitable for viscous slag, and a chain bucket type is recommended for highly abrasive slag.

- Processing Efficiency: It is necessary to match the slag discharge volume requirements of the production line to avoid equipment overload or resource waste.

- Maintenance Convenience: Models with modular design are preferred to reduce downtime for maintenance. During operation, vulnerable parts such as bearings and chains should be regularly inspected, and residual slag materials should be cleaned up in time to prevent blockage.

 

Fault Repair and Technological Innovation

After long - term operation, slag conveyors are prone to problems such as wear in the bearing housing and fracture of structural parts. Traditional repair technologies such as surfacing or brush plating have the risk of thermal damage and a long cycle, while modern polymer composite material technology can repair worn parts on - site. This material has high adhesion and compressive strength, can absorb the impact vibration of the equipment, and extend its service life.

The technological iteration in the industry is also reflected in the intelligent upgrade. For example, the development of an automatic water replenishment system optimizes resource consumption and reduces manual intervention by real - time monitoring of water level and slag material status.

 

Future Development Trends

With the advancement of Industry 4.0, slag conveyors are evolving towards intelligence and low energy consumption. A remote monitoring system integrated with the Internet of Things can diagnose the equipment status in real - time, and predictive maintenance technology further reduces the failure rate. At the same time, the application of lightweight materials and energy - saving designs will help enterprises achieve the goal of green production and promote the sustainable development of the industry.