Zhengzhou Gofine Machine Equipment CO., LTD |
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Intelligent Compound Fertilizer Inorganic Biological Fertilizer Granules Production Line Manufacturer
Introduction
The production process of compound fertilizer is raw material ingredient → mixing → crushing and agglomeration → granulation → primary screening → granule drying → granule cooling → secondary screening → finished granule coating → finished product quantitative packaging.
1. Ingredients of raw materials: Generally, urea, ammonium nitrate, ammonium chloride, ammonium
sulfate, ammonium phosphate (monoammonium phosphate, diammonium
phosphate, heavy calcium, ordinary calcium), potassium chloride
(potassium sulfate) and other raw materials can be selected
according to certain requirements. Proportional equipment (mainly
determined according to local market demand and local soil test
results);
2. Mixing: Mix the prepared raw materials evenly to increase the uniform
fertilizer efficiency content of the overall fertilizer particles,
and use a horizontal mixer or a disc mixer for mixing;
3. pulverization: pulverize large agglomerates of materials that are evenly mixed
and stirred to facilitate subsequent granulation processing, mainly
using chain mills;
4. Material granulation: send the uniformly stirred and crushed material to the granulator
through a belt conveyor for granulation (rotary drum granulator can
be used, or double-roller extrusion granulator or disc granulator
can be used. Granulator, etc.), this step is an indispensable and
most important link in the production process of compound
fertilizer;
5. First-level screening: preliminary screening of semi-finished products, and unqualified
particles are returned to the mixing and stirring link for further
processing, generally using a drum screening machine;
6. Granule drying: The granules made by the granulator and passed through the
first-level screening are sent to the dryer, and the moisture
contained in the granules is dried to increase the strength of the
granules and facilitate storage. Generally, a tumble dryer is used.
;
7. Granule cooling: The temperature of dried fertilizer granules is too high and easy
to agglomerate. After cooling, it is convenient for bagging and
storing, and transportation, and cooling by a cooler;
8. Secondary classification of particles: the cooled particles are classified, the unqualified particles
are crushed and re-granulated, and the qualified products are
screened out, which can be sieved by a secondary drum sieving
machine;
9. Finished particle coating: coating qualified products to increase the brightness and
roundness of the particles and make the appearance more beautiful.
Generally, the coating machine is used for coating;
10. Quantitative packaging of finished pellets: The wrapped pellets are the finished pellets that are sent to the
silo through a belt conveyor for temporary storage, and then
connected to an electronic quantitative packaging scale, sewing
machine and other automatic quantitative packaging and sealing
bags, and stored in a ventilated place to achieve complete
automation.
The ten links of the compound fertilizer production process are mainly connected by belt conveyors to ensure the fully automatic and stable operation of the entire compound fertilizer production line.
Equipment sheet
No. | Processes | Machines | Function of machines |
1 | Batching process | Automatic batching machine | Ratio raw materials by formula |
2 | Grinding process | Grinder | Grind granules to powder |
3 | Mixing process | Mixer | Mix powder evenly, If necessary, add water, or other micro-elements |
4 | Granulating process | Feeding machine | Feed mixed powder into granulator evenly |
Granulating equipment | Make mixed powder into fertilizer granules | ||
5 | Drying process | Dryer | Dry fertilizer granules to low moisture by hot air |
Hot stove | Generate hot air to dryer | ||
Cyclone | Collect dust from dryer | ||
6 | Cooling process | Cooler | Cool fertilizer granules to normal temperature |
Cyclone | Collect dust from cooler | ||
7 | Screening process | Screening machine | Screen out required size from fertilizer granules |
8 | Coating process | Coating machine | Coat color, anti-blocking agent, micro-elements etc on fertilizer granules |
9 | Packaging process | Air compressor | Generate power to packaging machine |
Packaging machine | Package fertilizer granules into bags |