In the catalyst production process, key steps such as calcination, roasting, and drying place high demands on the performance of the conveyor belt. This article by Jiaoyang will provide you with a detailed analysis of the key points for selecting conveyor belts for SCR denitrification catalysts.

PART 1 Four Major Challenges

The test of extreme temperature environments During catalyst production, the mesh belt needs to withstand the high-temperature environment of 800-950℃ continuously inside the calcination furnace.

Double attack by corrosive media Jiaoyang’s on-site investigation revealed that in actual production, conveyor belts not only need to withstand high temperatures, but also continuously come into contact with highly corrosive media such as ammonia and nitrogen oxides.

The challenge of adapting to special material properties SCR catalyst supports typically have characteristics such as large volume, loose and porous texture, and low mechanical strength. These characteristics place special requirements on the load-bearing capacity, air permeability, and surface flatness of the mesh belt.

Long-term operational stability requirements Since catalyst production is a continuous process, the conveyor belt needs to maintain characteristics such as no deformation, no deviation, and no metal shavings contaminating the catalyst during long-term operation.

PART 2 There’s a way to deal with the scorching sun.

Considering the above challenges and needs, Jiaoyang’s specialized conveyor belt solutions designed for leading enterprises such as Yuanda Environmental Protection and Zhejiang Energy Group have greatly improved these pain points.

Preferred mesh belt material

Jiaoyang conveyor belts are made from carefully selected 316L stainless steel, and materials can also be customized according to customer specific needs, material characteristics, and usage environment.

① High temperature resistance: Can work stably for a long time at 950℃;

② Corrosion resistance: The addition of molybdenum enhances its resistance to ammonia and acidic gases;

③ Oxidation resistance: Forms a dense oxide layer at high temperatures, slowing down further oxidation;

Innovative structural design

① The balanced weaving process uses a special warp and weft weaving method, which reduces the weight of the mesh belt while ensuring strength, increases air permeability by 40%, and significantly improves heat exchange efficiency;

② The special embossing treatment on the surface of the wire threading technology increases the contact area with the catalyst, preventing the catalyst from sliding or colliding during transportation; it also directly reduces procurement costs and furnace energy consumption, achieving the goal of cost reduction and efficiency improvement.

③ The crankshaft threading positioning system adopts a precision crankshaft positioning device to ensure that the spacing error of each spiral strip is <0.5mm, which greatly reduces the amount of deformation and elongation at high temperatures;