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Coal mining scraper conveyor
The cast stone scraper conveyor is suitable for the closed transportation of powdery, granular, small lumps and mixed materials with a temperature below 250°, mainly for horizontal transportation. It
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Product Details
Scraper Conveyor for Mining Applications: Robust Material Handling Solution
Introduction
Key Components and Their Material Options
1. Conveyor Chain
- High - Carbon Steel Chain
- Performance: High - carbon steel chains are renowned for their exceptional strength and wear - resistance. In mining applications, where the conveyor is often subjected to heavy loads and abrasive materials, these chains can endure significant stress. They are capable of pulling large volumes of mined materials continuously without breaking or stretching easily.
- Advantages: Their high tensile strength allows for the transportation of heavy loads, making them suitable for large - scale mining operations. Additionally, high - carbon steel is relatively cost - effective compared to some high - tech alloys, providing a good balance between performance and cost.
- Disadvantages: However, high - carbon steel is prone to corrosion, especially in damp mining environments. Rust can gradually weaken the chain, reducing its lifespan and potentially leading to unplanned downtime for replacement.
- Alloy Steel Chain
- Performance: Alloy steel chains are engineered to offer a combination of high strength, wear - resistance, and enhanced corrosion resistance. They are designed to withstand the extreme conditions of mining, including abrasive materials and variable humidity levels.
- Advantages: These chains have excellent fatigue resistance, which means they can endure repeated stress cycles without developing cracks or breaking. Their superior corrosion resistance compared to high - carbon steel makes them more suitable for long - term use in wet or chemically - reactive mining environments.
- Disadvantages: The main drawback is their higher cost. The manufacturing process of alloy steel involves adding various alloying elements, which increases the overall cost of the chain. This can be a limiting factor for mining operations with tight budgets.
2. Scraper Blades
- Hardened Steel Blades
- Performance: Hardened steel scraper blades are extremely durable and effective at scooping up and moving mined materials along the conveyor trough. They are heat - treated to increase their hardness, enabling them to resist wear from the abrasive nature of coal, ores, and rocks.
- Advantages: Their high hardness ensures a long service life, even when exposed to highly abrasive materials. They can efficiently push large volumes of materials, maintaining a consistent flow rate in the conveyor system.
- Disadvantages: Hardened steel blades can be brittle. In the event of impact with large, irregularly shaped rocks or sudden jams in the conveyor, they may crack or break. Additionally, their repair or replacement can be relatively costly due to the specialized manufacturing process.
- Wear - Resistant Composite Blades
- Performance: Wear - resistant composite blades are designed to provide excellent abrasion resistance while maintaining a certain level of flexibility. These blades are often made from a combination of materials, such as a high - strength base material with a wear - resistant coating or embedded particles.
- Advantages: They offer superior wear resistance compared to some traditional steel blades, which can significantly extend the blade's lifespan. Their flexibility also allows them to better adapt to the movement of materials and any minor misalignments in the conveyor trough, reducing the risk of breakage.
- Disadvantages: The production process of wear - resistant composite blades can be complex, resulting in a higher initial cost. Also, if damaged, the repair of these composite blades may require specialized techniques and equipment.
3. Conveyor Trough
- Carbon Steel Trough
- Performance: Carbon steel troughs are a common choice in mining scraper conveyors due to their strength and affordability. They can withstand the weight and impact of the mined materials being transported.
- Advantages: Carbon steel is widely available and relatively inexpensive, making it a cost - effective option for large - scale mining operations. It can be easily fabricated into the required trough shape, and replacement parts are readily accessible.
- Disadvantages: Similar to high - carbon steel chains, carbon steel troughs are vulnerable to corrosion, especially in wet mining conditions. Corrosion can lead to the thinning of the trough walls, reducing its structural integrity over time.
- Stainless Steel Trough
- Performance: Stainless steel troughs offer excellent corrosion resistance, making them ideal for mining operations where the environment is humid or where there are chemical contaminants present. They maintain their structural integrity even in harsh conditions.
- Advantages: Their corrosion - resistant properties ensure a long service life, reducing the need for frequent replacements. Stainless steel is also easy to clean, which can be beneficial in maintaining the quality of the transported materials, especially in cases where purity is important, such as in some precious metal mining operations.
- Disadvantages: Stainless steel troughs are more expensive than carbon steel troughs. The higher cost can be a deterrent for mining companies with limited budgets, especially for large - scale installations where a significant amount of trough material is required.
Conclusion
| Model number | XGZ-06 | XGZ-08 | XGZ-10 | XGZ-12 | XGZ-14 |
| Conveying quantity t/h | 100-300 | 200-500 | 300-600 | 400-800 | 500-1000 |
| Speed m/s | 0.48-0.76 | 0.48-0.76 | 0.48-0.76 | 0.48-0.76 | 0.48-0.76 |
| Conveying distance m | 6.7-64.3 | 8.2-64.3 | 8.6-43.6 | 8.9-63.5 | 8.6-53.6 |
| Material granularity mm | <300 | <300 | <300 | <300 | <300 |
| Trough Width (m) | 600 | 800 | 1000 | 1200 | 1400 |
| Scraper Pitch mm | 1024 | 1024 | 1024 | 1024 | 1024 |
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