Key Takeaways
- MineSense BeltSense is a commercially available conveyor belt analyzer. It is a named product, not a generic concept, for continuous ore-grade sensing on the conveyor.
- It measures mineral content on the belt independent of belt speed or throughput. That closes the gap between blasthole or shovel grade estimates and what actually reaches the plant.
- It retrofits onto existing conveyor infrastructure with no major overhaul, and it integrates with material-quality systems like Siemens Simine MAQ.
- It pairs naturally with MineSense’s ShovelSense (grade sensing at the dig face) for grade control that spans from the pit to the crusher.
TL;DR
A conveyor belt analyzer such as MineSense BeltSense gives you a live grade signal for every tonne that passes on the belt. You install it above an existing conveyor and connect its output to your stockpile diversion and blending logic. As a result, you catch dilution or misclassified material before it reaches the mill.
What Is a Conveyor Belt Analyzer?
A conveyor belt analyzer is a sensor mounted over or around a conveyor that measures what the ore contains while it moves. Traditional grade control relies on spot samples and lab assays. Those arrive hours later and cover only a tiny fraction of the tonnes. By contrast, a belt analyzer reads the stream continuously, so every truckload has a measured grade rather than an estimated one.
Many industrial cross-belt analyzers use nuclear methods such as prompt gamma neutron activation analysis (PGNAA), while others use X-ray or electromagnetic sensing. The physics differs, but the job is the same: turn a moving stream of rock into a steady flow of grade data. AI and analytics then sit on top of that signal to flag anomalies and trigger decisions.
How Do I Monitor Ore Grade on the Belt With AI?
Most operations follow three steps: install the sensor, act on its signal, then connect it to the rest of the grade-control chain.
Installing a conveyor belt analyzer
BeltSense sits above the conveyor and scans material as it passes underneath. It produces a continuous stream of grade and ore-characteristic data. Manual sampling only gives you periodic spot checks. Because BeltSense measures independent of belt speed and throughput, it works across the normal operating range of a working conveyor. You do not need to slow production to sample.
Installation is a retrofit. MineSense positions BeltSense as not requiring a major infrastructure overhaul. That is its main practical advantage over adding sensing earlier in the value chain, where instrumentation is harder to fit.
Acting on the live grade signal
The value lies in what the signal lets you do downstream. First, you can trigger automated stockpile diversion when grade drops below cut-off. Second, you can flag material that does not match its expected block-model grade. This catches dilution or mis-mucking upstream. Finally, you can feed a higher-frequency grade signal into ore blending optimization than assay-based sampling alone provides.
Linking belt sensing to the pit
MineSense pairs BeltSense with its ShovelSense product through a shared MineSense Data Portal. ShovelSense covers grade sensing at the shovel, at the dig face. Operations running both get a grade picture from the moment ore is dug to the moment it hits the crusher. There is also a validated integration path with Siemens Simine MAQ, which helps if your plant already runs Siemens process control.
Where a Conveyor Belt Analyzer Fits in the Mine
A belt analyzer measures ore after it is dug and hauled. Therefore, it cannot stop a shovel from loading the wrong material. It can only tell you quickly that it happened. That is why many sites treat it as a checkpoint rather than a replacement for pit-side grade control.
It also differs from sensor-based ore sorting. A sorter rejects individual rocks. A belt analyzer, however, makes decisions on whole batches or diversion windows. Expect a calibration period against your own assays before anyone trusts the signal to route material. After that, its data becomes a useful input to dispatch and plant-feed planning.
FAQs
What does a conveyor belt analyzer measure?
A conveyor belt analyzer measures the mineral or elemental content of ore as it moves along the belt. MineSense BeltSense reads ore grade and byproducts in real time. The exact elements it can detect depend on the sensing technology and the ore type.
Can a conveyor belt analyzer be retrofitted?
Yes. MineSense designs BeltSense to mount above existing conveyors without a major infrastructure overhaul. That makes the belt one of the easier points in the value chain to add grade sensing.
How does belt sensing differ from shovel sensing?
Shovel sensing measures grade at the dig face, before the truck is loaded. Belt sensing measures grade after haulage, on the conveyor feeding the plant. Used together, they give continuous grade data from the pit to the crusher.
Does a conveyor belt analyzer replace lab assays?
No. Lab assays remain the reference that the analyzer is calibrated and checked against. The analyzer adds speed and coverage, measuring every tonne instead of occasional samples. Most sites keep both and reconcile them regularly.
Try It With Geocluster
You may be comparing belt-level sensing against shovel-level or blasthole-level grade control. The key question is where in your value chain a sensor pays for itself fastest. Geocluster can pull together the comparative case studies and vendor data to help you make that call. You can also read how the Geocluster Research Harness works.