NEWS

In the high-temperature operating conditions of the cement industry, heat-resistant conveyor belts are critical equipment for ensuring continuous production. This article provides an in-depth analysis of the performance of oil-resistant conveyor belts and corrugated sidewall belts in cement plants through practical application cases. It also shares key professional maintenance points to assist engineering technicians in extending belt service life and enhancing production efficiency.

I. Specialised Operating Conditions for Conveyor Belts in Cement Production

During cement manufacturing, conveyor belts endure clinker temperatures reaching 200°C while confronting multiple challenges including dust, abrasion, and chemical corrosion. Heat-resistant belts employ specialised rubber compounds and reinforcement materials to maintain superior physical properties under high temperatures. Corrugated sidewall belts effectively prevent material spillage during steep incline conveyance, demonstrating outstanding performance in applications such as pre-homogenisation stockyards.

II. Analysis of Typical Application Cases

A major cement group extended the service life of its clinker conveyor line from 6 to 18 months by adopting EP300 heat-resistant conveyor belts. This belt features a triple-layer EP canvas skeleton with a composite coating of styrene-butadiene rubber (SBR) and chloroprene rubber (CR), achieving a temperature resistance rating of 200°C. In the raw material vertical mill feeding stage, corrugated sidewall belts integrated with baffle plate designs enabled an increased conveying incline from 15° to 30°, reducing the footprint by 30%.

2.1 Application of Oil-Resistant Conveyor Belts in Auxiliary Systems

Oil-resistant conveyor belts are required in cement plant lubrication stations, hydraulic stations, and similar areas. A case study demonstrates that oil-resistant belts with NBR rubber coverings achieve a 2-3 times longer service life than standard belts when exposed to mineral oils. Their key indicator—volume expansion rate—is controlled below 10%, significantly exceeding ISO 283 standard requirements.

III. Key Maintenance and Inspection Procedures

Maintenance Item    Standard Operation    Frequency

Belt Misalignment Check    Adjust idler angle to ensure deviation ≤ 5% of belt width    Daily

Joint Condition Monitoring    Use infrared thermometer to detect abnormal joint temperatures    Weekly

Covering Layer Wear Inspection    Measure remaining thickness to ensure ≥ 50% of original thickness    Monthly

IV. Technical Parameter Comparison for Selection

When selecting heat-resistant conveyor belts, prioritise the following parameters:

Temperature Rating: T1 (100°C), T2 (125°C), T3 (150°C), T4 (175°C), T5 (200°C)

Tensile Strength: Typically select EP200-EP800 specifications

Cover Rubber Thickness: Upper layer 4-8mm, lower layer 1.5-3mm

Safety Factor: 8-10 times recommended for cement industry applications

V. Solutions to Common Issues

Q: How to address premature cracking in heat-resistant conveyor belts? A: Typically caused by thermal ageing. Recommendations: 1) Verify actual operating temperature exceeds rated value; 2) Avoid rapid thermal cycling; 3) Select CR rubber with superior ozone resistance.

Q: How to address detachment of corrugated sidewalls on conveyor belts? A: Primary causes include: 1) Insufficient vulcanised joint strength; 2) Excessive material impact. Solutions: 1) Employ secondary vulcanisation process; 2) Increase buffer idler density.

VI. Professional Technical Support Services

We provide end-to-end services from selection and design to installation and maintenance, including:

On-site operational condition assessment and service life evaluation

Customised conveyor belt solutions

Preventive maintenance plan formulation

24-hour emergency fault response

With over 200 successful case studies in the cement industry, our oil-resistant and heat-resistant conveyor belt solutions have helped clients reduce maintenance costs by an average of 35%. Contact our technical consultants immediately for personalised solution recommendations.