Coal Bunker Level Measurement Selection Scheme – Adaptive Application of Norhen Radar Level Meter

Coal bunkers are mainly divided into raw coal bunkers and pulverized coal bunkers. Raw coal bunkers contain coarse materials with mostly sedimentary dust, allowing a wide selection of instruments. Pulverized coal bunkers hold extremely fine, easily suspended and adhesive dust. Since pulverized coal is combustible, it can explode when reaching a certain concentration in a confined space upon exposure to sparks or high temperatures. Conventional level instruments cannot meet such requirements, so specialized instruments are required for monitoring. This article analyzes the working conditions of the two types of coal bunkers and recommends suitable level measurement solutions for different scenarios.

Raw coal bunkers have no explosion-proof requirements and simple working conditions. Continuous level measurement can be selected according to actual needs. For complex bunker structures or high demands on accuracy and stability, the 80 GHz high-frequency radar level meter is recommended to ensure reliable measurement. Ultrasonic level meters should be avoided, as they are easily disturbed by dust in raw coal bunkers, resulting in distorted measurements.

Pulverized coal bunkers feature high dust concentration, flammability and explosiveness, and complex environments. Especially in high-humidity southern regions, moist and adhesive materials often cause material buildup on probes and inaccurate measurements with traditional contact detection methods. Compared with traditional pulse radar or ultrasonic technology, 80 GHz radar offers outstanding advantages:

Given the complex working conditions of pulverized coal bunkers, the Norhen 80 GHz high-frequency radar level meter provides these technical advantages and is a reliable, efficient, and safe preferred solution for level measurement.

Measuring ranges from 10 m to 120 m adapt to pulverized coal bunkers of different volumes. Dedicated RF chips and antennas concentrate signals to stably capture echoes through dust, with measurement accuracy of ±1 mm, unaffected by dust fluctuations.

Explosion-proof rating up to Ex db ia IIC T6 Gb with authoritative intrinsic safety certification. Corrosion-resistant housing; ultra-high temperature models withstand extreme environments. Protection class reaches IP67 for harsh working conditions.

3° ultra-narrow beam angle avoids obstacles and suppresses false echoes. Supports multiple communication protocols and Bluetooth debugging, with high-precision calibration and comprehensive after-sales support for easy operation and maintenance.

Non-contact principle eliminates material adhesion and abrasion, reduces maintenance costs, and enables long-term stable operation.

Standard universal adjustable flange allows flexible installation at multiple angles on site. Optional integrated purge interface effectively prevents dust accumulation and moisture condensation.

Norhen radar level meters are precisely suitable for both raw coal bunkers and pulverized coal bunkers. To obtain the same high-efficiency measuring equipment, visit our official store below. Customization is supported, with pre-sales consultation and after-sales installation guidance available, making level measurement easier and more reliable!