Formular for npk fertilizer production

From a technical point of view, the important factor in the formulation design of extrusion granulation products in NPK fertilizer production line is the characteristics of materials. Next, we discuss another aspect of the influencing factors, that is, the influence of the type of raw materials on the formula.

1. Material compatibility

Theoretically, any proportion of NP or K base fertilizer can be prepared, and trace elements and even pesticides should be added if necessary. However, materials must be limited by compatibility. The substances in the formula shall not have chemical reaction in the process of fertilizer manufacturing, and occasional reaction shall not be allowed.

2. Effect of urea on formula

The international fertilizer center has done a lot of experiments on the effect of urea on the performance of compound fertilizer, although the report does not mention the same example as the product formula we are studying, and most experiments do not carry out granulation on extrusion. Yes, but its conclusion is still useful to us.

NPK Drum Granulation Line
NPK Drum Granulation Line

Because urea absorbs moisture easily, the critical relative humidity of NPK compound fertilizer decreases significantly. At the same time, the international fertilizer center also found that this effect is more serious when potassium chloride is used as the potassium source of compound fertilizer.

Due to the low critical relative humidity, urea based compound fertilizer is easy to absorb water, which blocks the screen, pipeline, chute, etc.
When the temperature increases, the critical relative humidity of urea based compound decreases rapidly.

The production capacity of the dryer must be determined by many factors. Some urea based NPK fertilizers begin to soften at 70 ℃. If the outlet temperature of the dryer is higher than this temperature, the fertilizer particles will be too soft, the granulation process will be out of control (the particles are too large), and the internal scabs will form. Drying causes difficulties in screening and transportation.

In the same report, the international fertilizer center also tested other aspects of urea, such as water absorption, moisture permeability, water holding capacity, particle integrity, fluidity and agglomeration. The result is negative, which will have an adverse effect.

In short, the formula design test and production of extrusion granulation products in compound fertilizer production line show that the use of urea in compound fertilizer will encounter great trouble, not only because it affects the storage and transportation performance of products, but also because it also has a certain impact on the production process.

More info on npk fertilizer production, welcome go to https://www.fertilizer-plants.com/compound-fertilizer-production-line/

Powder Fertilizer VS Granular One Which One is Better for Plants?

Organic fertilizer is a kind of organic fertilizer made from poultry manure, combined with fermentation bacteria, straw and other auxiliary materials, using traditional fermentation methods or organic fertilizer production equipment.

For commercial organic fertilizers on the market, two more popular forms of finished organic fertilizers are powdered and granular. What is the processing technology of powdery organic fertilizer and granular organic fertilizer? Which is better?

Bio Fertilizer Plant Design
Bio Fertilizer Plant Design

How to make powder fertilizer? Here are machines and solutions for your reference:https://organicfertilizerplants.com/

Processing technology of granular organic fertilizer:

The equipment used for granular organic fertilizer processing and production include: fermentation dumper, pulverizer, fertilizer disc granulator, screening machine and packaging machine
The fermented fertilizer is crushed by a pulverizer, and then the organic fertilizer particles are produced by a disk fertilizer granulator.

The organic fertilizer particles are screened by a screening machine, dried, and finally transported to the discharge bin for packaging, weighing and sealing.

Processing technology of powdery organic fertilizer:

The production line of powdery organic fertilizer needs to purchase equipment: fermentation tipping machine, pulverizer, packaging machine, etc.

The advantages of powdery organic fertilizer are: less investment in production and manufacture;

It has better fusion with roots, wider diffusion range, faster root fertility effect and faster absorption

Disadvantages:

It is easy to raise dust, get damp and caking during construction.

Advantages of granular organic fertilizer

Some inorganic components can be added to fertilizer to improve fertility. It’s more convenient to apply.
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Humic acid + fertilizer! what is it?

How to make organic fertilizer granules? Go to https://organicfertilizerplants.com/organic-fertilizer-granulation-machine/