Product Introduction
Rotary kiln support rollers are the core load-bearing components of the rotary kiln support system, typically used in conjunction with tires (roller rings). As the "feet" of the rotary kiln shell, they directly support the enormous weight of the kiln body and its internal materials, guiding the shell to rotate smoothly along a predetermined trajectory.
During rotary kiln operation, the support rollers drive the tires through friction, thereby rotating the entire kiln body. They not only bear enormous static and dynamic loads but also must withstand high-temperature radiation, dust erosion, and complex thermal stress environments. Therefore, the support rollers are key components determining the operational stability, service life, and maintenance costs of the rotary kiln.
Product Advantages
- Excellent Load-Bearing Capacity: Manufactured from high-strength alloy steel and undergoing rigorous heat treatment processes, ensuring the support rollers maintain structural stability even under extremely heavy loads, effectively preventing deformation and fatigue failure.
- Excellent Wear Resistance: Surface hardening treatments (such as quenching and carburizing) significantly improve the surface hardness and wear resistance of the support rollers, greatly extending their service life and reducing the frequency of downtime and replacement due to wear.
- Stable Thermal Control: Optimized heat dissipation structure and high-temperature resistant materials enable the support rollers to effectively resist the radiant heat of the rotary kiln, preventing fit failure or bearing seizure due to thermal expansion.
- Smooth and Low-Noise Operation: Precision machining ensures perfect line contact between the support rollers and the tire, reducing vibration and impact during operation, lowering noise, and protecting the transmission system.
- Easy Maintenance and Replacement: Modular design and standardized interfaces make installation, adjustment, and subsequent maintenance of the support rollers more convenient, helping to reduce the overall operation and maintenance costs for enterprises.
Product Technical Features
1. Superior Material Selection: Utilizing high-quality alloy steel (such as 42CrMo, ZG42CrMo, etc.), possessing high yield strength and tensile strength, ensuring the toughness of the base material.
2. Surface Hardening Technology: Employing advanced surface quenching or overall tempering treatment, the surface hardness can reach HRC50-60, with a uniform hardened layer depth, providing both wear resistance and compressive strength.
3. Precision Manufacturing Process: Utilizing CNC heavy-duty lathes and grinding machines, the roundness, cylindricity, and coaxiality of the roller's outer diameter are controlled within extremely small tolerances (typically ≤0.05mm), ensuring smooth rotation.
4. Thermal Cracking Resistance Design: Areas with concentrated thermal stress undergo rounded corner optimization and stress-relieving annealing to prevent cracking under high-temperature alternating loads.
5. Lubrication Compatibility: The design incorporates a rational oil groove and oil hole structure, facilitating compatibility with thin oil or dry oil lubrication systems, ensuring long-term lubrication of the bearing components and reducing frictional heat.
Technical Parameters
- Application Scope: Rotary kilns in industries such as cement, metallurgy, chemical, and environmental protection; customized according to kiln diameter.
- Material: ZG35, ZG45, ZG42CrMo, 40Cr, etc. 42CrMo is the recommended high-strength material.
- Surface Hardness: HB240-280 / HRC45-55, depending on specific process requirements.
- Single Piece Weight: 500kg - 20000kg, depending on kiln size.
- Machining Accuracy: IT6 - IT7 grade, conforming to ISO standards.
- Standard Diameter: Φ800mm - Φ4500mm, customizable according to drawings.
- Operating Temperature: -20℃ - 300℃, affected by kiln heat radiation.
- Matching Bearings: Self-aligning roller bearings, sliding bearings, depending on the structure of the support roller seat.
Note: The above parameters are general reference values. Specific values need to be designed and adjusted in detail according to the actual specifications, load, and operating conditions of the customer's rotary kiln.
Keywords
Previous: Rotary kiln gears
Rotary kiln support rollers
Product Categories
Related Products
Related Products
Contact Us
No.99 Hengshan Road, Jianxi District, Luoyang City, Henan Province
sweep
CITICTLC
Learn more about dynamic information