3D Radar Level Scanner

During feeding and discharging operations of materials such as cement raw meal, pulverized coal, and grains, silos generate significant amounts of suspended dust. This heavy dust attenuates electromagnetic and acoustic wave propagation, severely degrading the signal penetration of traditional measurement instruments. Consequently, achieving accurate material tracking under high-dust conditions remains a major industrial challenge.

1. Inherent Limitations of Traditional Measurement Instruments

Ultrasonic level gauges are easily blocked by heavy dust, making them virtually non-functional in heavy-dust silos. Conventional single-point radars scan only a single location, making them prone to inventory data errors from dust and material buildup on sidewalls. This makes it difficult to achieve continuous and stable measurements in industrial silos. To address inventory measurement under heavy-dust conditions, the RETTAR R&D team has developed the 3D Radar Level Meter to resolve level and volume measurement challenges.

2. Solution: 3D Radar Level Scanner for Heavy-Dust Environments

The RETTAR 3D Radar Level Scanner addresses these challenges through optimized hardware and advanced signal processing algorithms.

1)80 GHz High-Frequency Millimeter-Wave Tehcnology for Deep PenetrationThe 3D Radar level sensor operates at an 80 GHz high frequency, equipped with a domain-adaptive point cloud reconstruction algorithm and featuring excellent dust penetration of millimeter-wave radar. The system maintains stable transmission and reception for continuous measurement even with a 1 cm accumulation of dust on the housing surface.

2)High-Density Multi-Point numérisation 3D

Single-point radars observe only a single position, the 3D radar level gauge performs 360° scanning to generate a complete point cloud grid of the material surface. It fully reconstructs uneven contours and the repose angle of material piles, and eliminates measurement errors caused by blind spots in inventory data.

3) Adaptive Point Cloud Reconstruction Algorithm

The 3D Radar Level Scanner captures a material surface point cloud that undergoes precise algorithmic fitting and clutter filtering tailored to the specific geometry of the silo or bunker environment.

4) Industrial-Grade Dust Protection

Le 3D Radar Level Scanner with an IP68 ingress protection rating, it is built for harsh industrial environments. Its mechanical design ensures long-term, stable operation in heavy-dust and high-moisture conditions.

3. Cross-Industry Field Applications

Cement Industry (Raw Meal Silos): The 3D radar operates continuously and stably in heavy-dust environments, reducing inventory volume measurement error to ±0.5% ~ ±2% FS.

Coal Industry (Coal Storage Silos & Open Stockyards): Penetrates dense coal dust to generate real-time 3D stockpile data, enabling dynamic inventory monitoring.

Grain Industry (Shallow Round Silos): Holds ATEX explosion-proof certification, ensuring safe operation in potentially explosive combustible dust environments.

4. Conclusion

Inventory Measurement data deviation caused by dust interference represents a limitation that traditional level instruments cannot overcome. Field case studies demonstrate that 3D radar technology provides a mature, effective path for inventory tracking in heavy-dust silos. Implementing this radar scanner allows facilities to acquire precise, real-time inventory data, eliminate manual silo inspections, and ultimately drive precise process control and cost reduction.

Ready to overcome dust interference in your silos? Contact RETTAR’s specialists via WhatsApp or email to get your tailored 3D sensing measurement solution.