This is a project about an organic fertilizer dryer machine in Brazil. In the vast sugarcane-producing state of São Paulo, Brazil, a major agro-industrial conglomerate faced a monumental waste management challenge. Their operations included both a massive sugarcane mill (producing sugar and ethanol) and a large-scale poultry farming division.
This is a project about an organic fertilizer dryer machine in Brazil. In the vast sugarcane-producing state of São Paulo, Brazil, a major agro-industrial conglomerate faced a monumental waste management challenge. Their operations included both a massive sugarcane mill (producing sugar and ethanol) and a large-scale poultry farming division.
The mill generated enormous quantities of vinasse, a liquid byproduct of ethanol distillation, while the poultry farms produced tons of manure. Traditionally, vinasse was applied raw to sugarcane fields, but this practice was increasingly criticized for soil salinization and groundwater contamination risks.
The conglomerate’s sustainability directors envisioned an innovative, integrated solution: co-processing the poultry manure with filtered vinasse solids to create a high-value, pelletized organic fertilizer for the booming Brazilian soybean and corn sector. The critical technological bottleneck was the efficient dehydration of this blended, high-moisture feedstock.
This led to the search for a high-capacity organic fertilizer dryer machine. The strategic decision was made to invest in two large organic fertilizer dryers as the core of a new, dedicated processing plant. This dual-unit approach was essential to handle the colossal volume of material and ensure continuous, large-scale production to meet the demands of commodity crop farmers.
Name:
fertilizer drying machine
Country:
Brazil
Date:
2025
Capacity:
6.5 – 7.5 tons
Model:
φ1.8x24
type:
Triple-Pass
Initial Moisture Content:
68-72%
Final Moisture Content:
68-72%
Given the sheer scale of both vinasse and manure production, a single dryer, even a large one, could not achieve the targeted annual output of hundreds of thousands of tons of fertilizer.
Purchasing two identical organic fertilizer dryer machines was a calculated move to guarantee production redundancy (minimizing downtime risk) and to achieve the economies of scale necessary to make the fertilizer price-competitive with mineral alternatives in the Brazilian market. These rotary dryers for organic fertilizer were the heart of their new circular economy venture, representing a major capital investment in sustainable agribusiness.
The raw material was a homogenous blend of decanted vinasse solids (very high moisture) and dried poultry manure (used as a drying aid and nutrient booster), resulting in a consistent paste with about 68-72% moisture.
The drying intent was massive volume reduction and product stabilization for pelletizing. The process needed to be extremely robust, energy-efficient, and capable of delivering a uniformly dried powder at a moisture content of 12-14%, perfect for high-volume pellet mill operation.
After a global tender, RICHI Machinery was selected for our unparalleled experience in designing ultra-large-scale, fuel-flexible drying systems. We proposed the installation of two RICHI φ1.8x24 Triple-Pass Rotary Drum Dryers (φ1.8x24*3C conceptually).
The technical specifications for this organic fertilizer dryer machine in Brazil project were engineered for mega-scale:
This triple-pass rotary dryer system is the pinnacle of efficiency for such applications. The material makes three passes through progressively hotter zones within a single drum, maximizing heat transfer and minimizing exhaust heat loss, which is critical when processing such vast volumes.
The output from these twin fertilizer drying machines feeds directly into a large pelletizing plant:
This case exemplifies RICHI's capability to deliver and integrate multiple lines of heavy industrial equipment for the world's largest agricultural producers.
The Brazilian conglomerate selected RICHI based on criteria essential for a project of this magnitude:
The two massive dryer systems were manufactured in modules, shipped in multiple heavy-lift vessels from Qingdao Port. The primary port of entry for such large industrial projects in Brazil is the Port of Santos, the busiest container and general cargo port in Latin America, with the infrastructure to handle oversized cargo destined for the interior.
"In Brazil, scale is everything. We needed a drying solution that could match the volume of our waste streams and turn them into a competitive product. The two RICHI triple-pass organic fertilizer dryers have done exactly that. Their efficiency using our bagasse is outstanding, and their reliability allows us to run continuously.
We are now a major supplier of organic fertilizer pellets to the grain belt. RICHI Machinery managed this large project professionally from start to finish. For any large agro-industrial group looking to valorize waste at an industrial scale, this organic fertilizer drying system is the benchmark." – Director of Sustainability & New Ventures, Agro-Industrial Conglomerate, São Paulo, Brazil.
This project solidifies RICHI's position as a provider of transformative industrial solutions for the global agribusiness sector, enabling large-scale, profitable circular economy models.
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