Continuous measurement of wood chips and biomass means controlling the variables of your raw material, which is essential for efficiency, process stability and lower costs. With wood chips and biomass, that control has to be even more precise, because small changes in moisture, density and volume can cause large losses, hurt productivity and drive up energy or chemical consumption.
In this article you will see how continuous biomass measurement with Marrari Automação’s DensiDry can transform performance in pulp, energy (boiler biomass) and wood panel (MDF and particleboard) plants. We look at practical applications, the data it produces and the operational gains in each segment.
Why measure wood chips and biomass continuously?
Most plants still control raw material through manual sampling. Besides being slow, this does not capture the real variability between loads or over the course of production. In materials such as wood chips, sawdust and forestry or agricultural residues, that variability can undermine the whole process.
Continuous measurement solves this by:
- Collecting data in real time, directly on the conveyor.
- Removing subjectivity from analysis.
- Enabling automatic, immediate process adjustments.
- Providing raw material history and traceability.
Continuously measuring the moisture, bulk density and volume of chips and biomass keeps production within the right parameters, improving energy efficiency, input use and product consistency.
What does DensiDry measure?
DensiDry is a complete in-line analysis system for bulk solids. It is installed over conveyors and continuously reads:
- Real-time moisture (dry and wet basis)
- Bulk density of the load
- Volume of material conveyed
- Mass flow rate (kg/h or t/h)
- Total weight of each load
The data can be integrated with the plant’s automation system, exported to reports and viewed on dashboards and mobile apps.
Applications by industry
Here is how continuous measurement with DensiDry benefits different industries.
Pulp mills: cooking control and chemical use
In pulp production, wood chips feed the digesters, where they are cooked with white liquor. The right amount of liquor depends on the dry mass of chips, a figure that can only be obtained accurately by continuously measuring moisture and density.
With DensiDry you can:
- Determine the exact dry solids load going into the digester.
- Adjust chemical dosing automatically based on actual density and volume.
- Correct imbalances caused by chips of varying density (different species, suppliers and sizes).
- Improve bleaching line control with more uniform fibers.
Direct benefits:
- Lower consumption of caustic soda and additives.
- Greater process stability.
- Fewer stops caused by quality swings.
- Better energy efficiency.
Biomass boilers: more energy from less fuel
In biomass boiler power generation, high-moisture fuels lower calorific value and waste part of the energy just evaporating water.
Continuous measurement with DensiDry lets you:
- Monitor biomass moisture before it is fed to the boiler.
- Calculate the instantaneous calorific value of the load.
- Adjust the feed rate to density and moisture.
- Anticipate thermal swings and stabilize combustion.
Practical results:
- Less biomass per tonne of steam.
- Better boiler performance.
- Lower emissions from incomplete combustion.
- Better use of lower-energy residues.
MDF and particleboard: uniformity and drying control
MDF and particleboard production depends on uniform moisture and density in the chips and particles going to the press. Variations hurt board quality, increase resin consumption and affect the final finish.
With DensiDry, panel manufacturers can:
- Monitor moisture at the dryer inlet in real time.
- Adjust drying temperature and conveyor speed.
- Optimize resin dosing based on dry mass.
- Reduce pressing defects and breakage.
Industrial benefits:
- Less scrap and rework.
- Smaller variation between batches.
- Savings in resin and thermal energy.
- Better, more consistent panel quality.
Benefits of continuous measurement with DensiDry
Whatever the industry, DensiDry offers broad advantages for managing raw material more intelligently:
✅ Reliable accuracy: continuous readings with no operator influence.
✅ Automation: integration with PLCs, supervisory systems and ERPs.
✅ Reports and dashboards: for historical analysis and decision-making.
✅ Supplier control: checking that each delivery meets spec.
✅ Fewer losses: processes adjusted with real data.
✅ Better energy efficiency: especially in boilers and dryers.
How does DensiDry adapt to your plant?
DensiDry can be configured for different conveyor types, materials and industrial environments. It works with:
- Wood chips (of different species and sizes)
- Sugarcane bagasse, rice husk and forestry residues
- Sawdust and wood dust
- Agricultural biomass (such as coffee husks, peanut shells and straw)
- Organic and recycled by-products
With its rugged design, the system runs 24 hours a day with low maintenance and high reliability.
Conclusion
Continuous measurement of wood chips and biomass is an essential technology for modern industry. Whether the goal is to optimize energy use, improve chemical yield or guarantee panel quality, real-time control turns data into decisions, savings and productivity.
Marrari’s DensiDry is the ideal solution for anyone seeking standardization, traceability and industrial efficiency.
Talk to a Marrari specialist to see how DensiDry can be applied to your process.
🎯 Smart measurement means guaranteed productivity.
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