Introduction of Compound Fertilizer Production Line
Compound fertilizer production line is widely applied to produce
compound fertilizer and the capacity ranges from 5,000-200,000
tons/year. It can granulate NPK fertilizer, DAP and other materials
into compound fertilizer particles in one processing line. This
equipment can specially used for manufacturing compound fertilizers
with different concentrations and types, such as organic
fertilizers, inorganic fertilizers, biological fertilizers, and
magnetic fertilizers, etc. It is mainly used for producing
spherical particles with a diameter ranging from 1mm to 3mm.
Advantages of Compound Fertilizer Production Line
1. Equipped with advanced fertilizer manufacturing technique, this
fertilizer production line can finish fertilizer granulation in one
2. Adopts advanced rotary drum granulator, granulating ratio is up
to 70%, high intensity of granules,
3. The inner cylinder body adopts high quality rubber plate lining
structure which prevents the raw material from sticking on the
4. Wide adaptability of raw materials, suitable for compound
fertilizer, pharmaceuticals, chemicals, fodder and so on.
5. High-quality, stable performance, anti-corrosion and
wear-resistant materials components, abrasion proof, low energy
consumption, long service lifespan, easy maintenance and operation,
6. High efficiency and economic returns, and the small part of
feeding back material can be granulated again.
7. Adjustable capacity according to customers’ requirements.
Compound Fertilizer Production Line Main Components
The whole compound fertilizer machinery in the fertilizer
production line includes the following machines: fertilizer mixing
machine fertilizer crushing machine rotary drum granulatorrotary
drum drying machinerotary drum cooling machine rotary drum coating
machine rotary screening machine packaging machinespraying
granulating systembelt conveyorand other accessories.
Compound Fertilizer Production Line Working Flowchart
The process technology of N-P-K fertilizers is advanced and
reliable. According to the compatibility and crossability of the
three raw materials, N-P-K compound fertilizer in different
percentage composition can be manufactured applicable for different
requirements of soils and crops.
1. Firstly, the raw materials are put into mixer in strict
accordance with the technical requirements of each raw material
quantity. Then the conveying belt sends the materials to crushing
2. Then, the crusher machine smashes lump materials into small ones
that the fineness meets the required for granulation. Then the
conveying belt sends the materials to rotary drum granulator
3. During granulating, there is a water pump to offer gas and makes
fertilizer particles forming easily. The solid fertilizer powder
after granulating will rise by the rotation of the cylinder and
scroll down under the effect of gravity. At the same time,
according to the raw material quantity, add a certain proportion
adhesives for granulation. After several times repetition of the
same rotation, fertilizer materials gradually form. Next the
conveying belt sends the materials to rotary drum drying machine
and cooling machine.
4. There are also draught fans to supply hot air and cold air to
drying machine and cooling machine respectively. After drying and
cooling is screening process. the coating machine can beautify the
5. In the process of screening, the qualified materials can be sent
to packaging machine by bucket elevator, while others are conveyed
back to crusher or granulator to be re-processed.
How to Produce the High Nitrogen Compound Fertilizer?
To produce high nitrogen compound fertilizer, one important
equipment is needed in the granulating process: the spraying
system. The melting tank melt the urea and then spray the melted
liquid into the granulating machine so that it will mix with powder
phosphate fertilizer, potash fertilizer and other nitrogen
fertilizer. Then with the help of the granulator, the liquid and
other raw materials will be mixed and granulated. This production
technology is used to produce compound fertilizer or complex
fertilizer with high nitrogen content from 25%-45%.