Wet Rotary Drum Granulator for Fertilizer Production Rotary drum granulator is a common device for granulating phosphate compound fertilizers , ສ່ວນໃຫຍ່ແມ່ນໃຊ້ໃນການຜະລິດຂອງ monoammonium phosphate (MAP), diammonium phosphate (DAP), ໄນໂຕຣເຈນ, phosphorus-potassium comp ...