0086-138 3838 9622A 12 t/h pig manure organic fertilizer pellet production line supplied by RICHI Machinery has reached completion and entered trial operation at a swine farming complex in the state of Mato Grosso.
Brazil’s pig farming sector generates enormous volumes of manure, and regulatory pressure around waste management has been pushing operators toward granulation rather than simple land application — granulated fertilizer is easier to transport, store, and sell to crop farms in other regions.
The process here begins with anaerobic digestion residue (the buyer already had a biogas system in place), which arrives at the granulation line at around 60% moisture. RICHI’s scope was the downstream granulation: drum granulator, rotary dryer, cooler, and a rotary drum screener that separates finished pellets from oversized clumps that get returned to the granulator.
Final pellet size is 2-4mm, formulated with the buyer’s own organic carbon additives blended in at the mixing stage before granulation — RICHI didn’t supply the additive formula, just the equipment that handles the blended input consistently.
One challenge during commissioning: ambient humidity in Mato Grosso during the wet season is high enough that the dryer’s exhaust system needed a minor adjustment to the air-to-material ratio. RICHI’s commissioning engineer made the adjustment on-site over about two days of testing.
The plant is now producing roughly 9-10 t/h consistently during testing, with full 12 t/h rated capacity expected once the buyer finishes calibrating their own upstream digestate feed rate — RICHI’s portion of the equipment is performing at spec.
