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How Does the Compound Fertilizer Processing Equipment Produce NPK Compound Fertilizers?

In recent years, the global NPK compound fertilizer market has seen tremendous growth, because people are increasingly aware of the urgency and necessity of balanced fertilization, and the development of NPK compound fertilizer production technology and formula has also played a certain role. In addition, NPK compound fertilizers usually have more premium space than single fertilizers. Therefore, many manufacturers put NPK compound fertilizers with more premium space than single fertilizers. Therefore, many manufacturers have included NPK compound fertilizers in their product portfolios.

The common granulation technology of compound fertilizer includes drum granulation, disc granulation, spray granulation, tower granulation and so on.

The high-tower nitrate rotating granulation method produces high-concentration nitro compound fertilizer. This technology sprays nicotine, phosphorus and potassium melts from the top of the tower, cools and agglomerates into granules during the landing process. In ammonium nitrate production enterprises, the use of high tower melting granulation method to produce compound fertilizer has the following advantages:

First, it can directly use concentrated ammonium nitrate solution and crushed solid ammonium nitrate for crushing to produce compound fertilizer. This operation simplifies the production process and ensures production safety.

Secondly, the melt rotating granulation process makes full use of the heat energy of the ammonium nitrate concentrate, the moisture content of the material is very low, and the drying process is not required, which greatly saves engineering consumption.

Drum granulator is the most widely used compound fertilizer processing equipment in compound fertilizer production. The formula limit is relatively small, and partial ammoniation can also be used. For most types of equipment, the production line can use 2-3 million units, the daily output is more than 280-400 tons, and the formula is more than 500 tons. Due to the small formula limit, high output, low investment, short construction period and other advantages, drum granulation technology is favored by many compound fertilizer manufacturers. And it is adopted by more and more compound fertilizer manufacturers. Using this method, we can use a drum granulator to complete the production process.

FPC independently develops and produces a complete set of fertilizer equipment such as fermentation equipment, drying equipment, granulation equipment, screening system, and batching system suitable for the production of organic fertilizer and bio-organic fertilizer. Welcome to visit our official website. https://www.fertilizerplantcost.com/npk-fertilizer-plant-cost/

Roller Extrusion Granulation Equipment How to Operate

The reason of wear of the shell of double roller granulator
Zhengzhou SX professional technicians will analyze the reasons for the wear of the roller shell on the compound fertilizer production line on the roller granulator

1. raw material moisture, pH

The roller sleeve is made of stainless steel. It reacts strongly with the pH value of the substance. Improper moisture and pH of the material will cause acid-base corrosion on the roller surface and damage the roller surface.

2. material factors

Roller extruder mainly deals with dry powder materials. Due to the different hardness of the material, uneven forces will be produced during extrusion and ball formation, which will increase the wear of roller skin. From the perspective of material factors, the other factor is the uniformity of the raw material particle size. Different sizes of raw materials also lead to uneven force and wear of roller sleeve.

3. feed uniformity coefficient

The center of the axis of the parallel bar of the extruder is parallel to the surface of the roll skin. If the feed is seriously uneven, one end feeds more and the other end is fed less, it will cause uneven force at both ends of the roller, increase the friction between the roller and the material, and cause the roller to wear.

Measures to reduce the wear of the roller shell in the compound fertilizer production line of the roller extruder:
In the process of pelletizing of the roller extrusion granulator, the roller skin is inevitably worn.

However, if used properly, it can effectively reduce the wear of the roller skin, thus extending the service life of the roller skin. According to the above factors, the following aspects can reduce the wear of the granulator.

1. for materials with high moisture content and high pH value, inspection and adjustment shall be carried out.

2. roller material, it is very necessary to select the cylinder cover with good material, wear resistance, torsion resistance and corrosion resistance.

3. in order to supply working materials, the uniformity of feed must be controlled to avoid wear caused by uneven axial force of roller.
Effective maintenance is an important means to reduce wear.

In conclusion, the damage factors should be avoided in the daily operation of the compound fertilizer production line from to the roller extruder. Therefore, manual and conventional use can reduce the wear of the pelletizing roller of extruder, prolong the service life and reduce unnecessary waste.