D-Type Cold-Resistant Conveyor Belts: The Abrasion-Resistant Solution for Cold, Tough Environments

Where are D-Type Belts the Ideal Choice?

These belts excel in applications where both cold and abrasion are major factors. Here are a few key industries:

1. Mining (Especially in Cold Regions):

• Scenario: Transporting ores, coal, and other raw materials in open-pit mines where temperatures can plummet well below freezing. These materials are often sharp and jagged, causing significant wear on conveyor belts.

• Customer Concern: "We need a belt that can handle the extreme cold of our northern operations, but also the incredibly abrasive nature of the ore we extract. Will a standard cold-resistant belt be enough?"

• Answer: Probably not. This is where the D-type shines. Its specialized abrasion-resistant cover, combined with its C1 or C2 cold-resistant rating (-45°C to 50°C, or -60°C to 50°C respectively), makes it perfect for this demanding application.

2. Aggregate Handling in Cold Climates:

• Scenario: Moving crushed stone, gravel, and other aggregates in quarries and processing plants located in cold regions. These materials are highly abrasive, and in winter, temperatures can drop significantly.

• Customer Concern: "Our aggregates are tough on belts, and we operate year-round, even in freezing temperatures. We need durability and cold resistance. What's the lifespan of a D-type belt in these conditions?"

• Answer: The D-type is built for this. Its wear-resistant cover, made from a blend of natural and butadiene rubber, is designed to withstand abrasion. While the exact lifespan will depend on usage, the D-type's robust construction, including its strong polyester or nylon core (with nylon providing up to 700 N/mm per layer in strength), ensures it will outlast standard cold-resistant belts in such abrasive conditions. The lifespan is also influenced by the surface temperature of the belt.

3. Cold Storage Warehouses (Handling Abrasive Goods):

• Scenario: Moving heavy, potentially abrasive goods in and out of large-scale cold storage facilities.

• Customer Concern: "We store a variety of products, some of which are quite rough on conveyor belts. Can a D-type belt handle the cold of our warehouse and the potential for abrasion?"

• Answer: Absolutely. The D-type's cold-resistant properties (either C1 or C2 rating), coupled with its abrasion-resistant cover, make it suitable for cold storage. Its construction, featuring a special inorganic framework that resists shrinking and deformation at low temperatures and a special adhesive with a bonding strength of ≥3N/mm that keeps the layers together, ensures it can withstand the challenges of a cold warehouse environment. 

Key Advantages of the D-Type:

• Dual Functionality: Provides both cold resistance (C1 or C2 ratings) and superior abrasion resistance.

• Durable Cover: Made from a specialized blend of natural and butadiene rubber, designed to withstand wear and tear.

• Strong Core: Typically uses polyester or nylon, offering high tensile strength (nylon up to 700 N/mm per layer).

• Wide Range of Sizes: Available in widths from 100mm to 3000mm, with 1 to 10 plies, and cover thicknesses from 1.5mm to 8.0mm (working surface) and 1.5mm to 4.5mm (non-working surface), these belts can be customized to fit most conveyor systems.

Questions and Answers:

• Q: How does the abrasion resistance of the D-type compare to the L-type (regular) cold-resistant belt?

• A: The D-type offers significantly better abrasion resistance due to its specially formulated cover compound. While the L-type is suitable for general cold-resistant applications, the D-type is the preferred choice when dealing with abrasive materials.

• Q: What is the recommended belt speed for D-type belts?

• A: Similar to other cold-resistant belts, it's generally recommended not to exceed 2.5 m/s.

• Q: What maintenance is required for D-type belts?

• A: Regular inspections are crucial, especially in abrasive environments. Look for signs of wear on the cover and address any damage promptly. Proper storage (rolled, in a cool, dry place, between 18-40°C with 50-80% humidity) is also essential. Ensure that the belt does not become misaligned during operation. If there is any misalignment, take immediate measures to correct it. If the belt is damaged, it should be repaired immediately with artificial cotton.

Conclusion:

D-type Cold-Resistant Conveyor Belts are the heavy-duty solution for industries that need both cold resistance and superior abrasion resistance. Their specialized construction, combining a durable cover with a strong core, ensures reliable performance in the toughest environments. By choosing D-type belts, businesses operating in cold, abrasive conditions can minimize downtime, maximize productivity, and ensure the safe and efficient transport of their valuable materials. They are a smart investment for any operation where both the cold and the materials are tough on equipment.