Compound fertilizer production line raw material selection:

1. Nitrogen source (N): urea, ammonia, ammonium nitrate, etc., such raw materials can be added to the fertilizer in a certain amount of nitrogen.

2. Phosphorus source (P): phosphoric acid, diammonium phosphate, etc., such raw materials can be added to the fertilizer in a certain amount of phosphorus.

3. Potassium source (K): potassium chloride, potassium sulfate, etc., such raw materials can be added to the fertilizer in a certain amount of potassium.

4. Trace elements: zinc, copper, boric acid and other trace elements, different plants have different effects, need to be added according to the specific circumstances.

5. Additives: binder, ph regulator and so on.

The above raw materials in the compound fertilizer production line in accordance with a certain proportion of mixing, through a series of production line steps to make the final high-quality fertilizer particles, convenient for long-term storage and long-distance transport, manufacturing fertilizer particles will become the overall trend of the fertilizer market in the future.

Compound fertilizer production line is a series of compound fertilizer manufacturing machinery combination of products, it contains six stages of raw material processing, mixing, granulation, drying and cooling, screening, packaging and so on, including machinery can be adjusted according to customer needs and increase or decrease, to ensure the quality of the final product of fertilizer particles.

Process flow of compound fertilizer production line:

1. Raw material processing:

According to the production demand will be prepared according to a specific proportion of raw materials batching, the use of dynamic batching scale or static batching scale adjustment, will be in accordance with the proportion of the conveyor to the belt machine, the initial raw material proportioning.

2. Raw material crushing:

Proportioning completed raw materials from the belt conveyor into the inlet of the pulverizer, in the pulverizer by the high-speed rotating blades or chains continue to smash, the formation of granulation before the required fineness of the powder.

3. Mixing of raw materials:

In order to ensure the uniformity of the finished product, the raw materials need to be stirred and mixed, the crushed raw material powder is transported to the mixer by the belt conveyor, through the mixing to form a homogeneous mixture.

4. Granulation:

Compound fertilizer production line has two types of granulation, one for dry granulation, one for wet granulation.

Dry granulation:

The mixed powder is fed into the double roller granulator, through the squeezing pressure of the rollers and the rotary movement of the squeezing wheel, dense particles are formed, and the shape of the particles can be adjusted according to the change of the concavity of the roller skin.

Wet granulation:

Feed the mixed raw materials into the rotary drum granulator, through the wet granulation method, the water pipe for spraying water mist is installed above the internal space of the rotary drum granulator, and the appropriate amount of water is added in the process of rotating the granulator, which plays the role of bonding and forms the granules.

5. Drying and cooling (optional)

The granules formed using wet granulation need to be dried in order to ensure that the granules will not be agglomerated during transportation and storage. Preliminary granules are transported from the granulator to the dryer, where the water in the granules is evaporated under the action of the hot air inside, and then sent to the cooler, where the cooling can bring the granules to room temperature quickly, which helps to ensure the stability of the internal structure of the granules, and to prevent the occurrence of deformation or cracks.

6. Packaging:

Pack the finished granules, you can choose bulk or bag, easy to transport and use.

7. Control system:

The whole compound fertilizer production line is usually equipped with PLC automatic control system, which can monitor and adjust the operation of each stage through the electric control cabinet to ensure the stability of the production process and product quality.

This process is a generalized example, the actual compound fertilizer production line may be adjusted according to the customer’s specific choice of raw materials, production needs and technical equipment, such as adding a round throwing machine or adding a film wrapping machine.

Advantages of compound fertilizer production line:

Compound fertilizer is widely used in the world, and there are differences in demand according to the crops in different regions. As an original equipment manufacturer of fertilizer machinery with many years of experience, we have precise control of our compound fertilizer production line, and we are constantly improving them, so that we can adjust the details of our products according to our customers’ production needs and reach the production goals.

All of our equipment is made of hardened high-temperature channel steel, which is wear-resistant and has been tested by authoritative organizations, and offers a five-year warranty. Full after-sales service, quality without worry.

If you have any needs or questions, please feel free to contact us!

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