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The drum granulation production line, also known as the rotary drum granulation production line, is widely used in the fertilizer industry for granulating various fertilizers. Here is a detailed introduction:
Batching: Fertilizer raw materials are proportioned according to
the required formula. Common raw materials include urea, ammonium
nitrate, ammonium chloride, ammonium sulfate, monoammonium
phosphate, diammonium phosphate, single superphosphate, potassium
chloride, potassium sulfate, etc.
Pretreatment and Crushing: The batched raw materials are pretreated
and crushed to a certain fineness to meet the requirements of the
granulation process.
Mixing: The crushed raw materials are evenly mixed in a mixer to
ensure the uniformity of the components.
Granulation: The mixed materials are sent to a rotary drum
granulator. In the granulator, water or steam is added to make the
raw materials humid, and through the rotation of the drum, the
materials are rolled and squeezed to form particles.
Drying: The granulated particles are sent to a dryer to remove the
moisture in the particles, making them harder and easier to store.
Cooling: After drying, the particles are cooled to room temperature
to improve their quality and stability.
Screening and Return: The cooled particles are screened. Qualified
particles are sent to packaging, and unqualified particles are
returned to the granulation process for reprocessing.
Packaging: The qualified particles are packaged to obtain the final
product.
Characteristics
Large Production Capacity: The single - unit production capacity of
the drum granulation production line is large, which can meet the
production needs of different scales.
Closed Design: It has a closed - type design, which can reduce dust
emissions and improve the production environment.
Energy - saving: By using steam to add water and increase the
temperature during the granulation process, it can reduce the
energy consumption of the subsequent dryer process to a certain
extent.
Application Scope
Fertilizer Production: It is mainly used for the granulation of
phosphorus compound fertilizers, such as monoammonium phosphate,
diammonium phosphate, nitrogen - phosphorus - potassium compound
fertilizers, heavy calcium superphosphate, etc. It is also used for
ammonia granulation and the production of organic - inorganic
compound fertilizers.