Slow release fertilizer production process tech

Fertilizer manufacturing technology can be used to produce organic fertilizer granulator or inorganic fertilizer granulator and other types of fertilizer granulator. Slow release fertilizer is a new type of fertilizer, we can also use fertilizer manufacturing technology to produce. Slow release fertilizer? What type of fertilizer machine should be equipped in the fertilizer manufacturing process?

Disc Granulation Line
Disc Granulation Line

Slow release fertilizer: slow release fertilizer refers to the chemical fertilizer that slowly releases the effective nutrients of crops over time through the chemical or physical action of nutrients. One or two kinds of nitrogen and potassium nutrients have slow-release effect in slow-release fertilizer. Fertilizers with slow-release nutrients have slow-release fertilizers, but fertilizers without slow-release function are mixed together to make some nutrients have slow-release effect, and they will become partial slow-release fertilizers.

Main types: ordinary slow-release fertilizer can be divided into coated slow-release fertilizer and inhibitor slow-release fertilizer. There are many kinds of classification methods of coated slow-release fertilizer. According to the main components of coating materials, it can be divided into inorganic slow-release fertilizer. Generally, the coating formed by organic matter has better water resistance, smoother, thinner surface and slow-release effect than the conventional coating formed by inorganic matter such as sulfur Coated fertilizer, organic coated fertilizer and polymer coated fertilizer. The preparation of organic coated fertilizers is relatively complex and costly. The most important problems of organic and polymer coated fertilizers in soil may have a greater negative impact on the environment and agriculture.

Coated fertilizer belongs to inorganic coated fertilizer. It is a kind of coated fertilizer that one or several other fertilizers are wrapped on the surface of one fertilizer. In the fertilizer production line, we can use the coating machine to pelletize the pelletizing machine into coated fertilizer. Like NPK fertilizer production line, after granulating in rotary drum granulator sx, we use conveyor to put granulator into coating machine for coating. Generally speaking, slow release of insoluble fertilizer can be realized by wrapping other products. Generally speaking, calcium magnesium phosphate can be used as coating fertilizer. This product has the advantages of small environmental pollution, uniform particles, uniform nutrient release and good slow-release effect.

Through the use of fertilizer machine and fertilizer manufacturing technology, more and more different types of fertilizers can be produced. In the process of different types of fertilizer manufacturing, different types of fertilizer machines are equipped in the production line to manufacture different types of fertilizer granulators. For example, in the process of organic fertilizer manufacturing, a new type of organic fertilizer granulator will be equipped. This series of fertilizer granulators are specially designed for the production of organic fertilizer Designed for pelletizer. In addition to the fertilizer granulator, a fertilizer mixer and fermentation compost will be provided, and the same equipment will be used in the production of slow release fertilizer.

A fertilizer mixer will be used to mix the raw materials, then a fertilizer crusher will be used to grind the raw materials, and then a fertilizer granulator will be used to make a granulator with a drum. Generally, a complete fertilizer production line includes these processes. Using this technology and semi-automatic fertilizer machine to produce different types of fertilizers not only improves the work efficiency, but also reduces the labor cost compared with the traditional method.

As a fertilizer machinery manufacturer, we not only design and produce fertilizer machinery and fertilizer production lines, so that fertilizer granulator can use fertilizer manufacturing technology to produce, but also design fertilizer production lines for different types of fertilizer production. Requirements and raw materials used in the production process of fertilizer granulator.

Slow Release Fertilizer Production Process

Slow release controlled fertilizers release nutrients slowly in the soil to meet the nutrient requirements of the whole crop growth period. In the process of NPK fertilizer production, slow release and control of fertilizer are realized by granulation and coating.

Slow release fertilizer means that the release rate of available nutrients in plants is lower than that of fast fertilizer after fertilization in soil. Controlled release fertilizer refers to the regulation of nutrient release according to the set release mode and nutrient absorption law of crops. Release not only refers to the release period of fertilizer, but also refers to the release rate of nutrients in fertilizer, which conforms to the law of crop fertilizer demand.


Ideally, controlled release fertilizer can artificially control the supply and release rate of nutrients according to the nutrient requirements of different stages of crop growth. That is to say, nutrients can be released when crops need them and retained in the soil when they are not needed, so that a single application can meet all stages of crop growth.

NPK fertilizer production line processing slow release controlled fertilizer
NPK fertilizer production line can slow release and control fertilizer through fluidization treatment. The main production processes are: batch processing, mixing, granulation, drying, cooling, screening, coating, packaging. Fertilizer granulator is the key to slow release and control fertilizer processing. It determines the size, shape and hardness of fertilizer particles. Fertilizer granulator determines the appearance of the product, and the physical shape of the product also affects the fertilizer effect.

Rotary drum granulator is usually used for slow release and controlled fertilizer production for granulation. The roller granulator has the advantages of large production capacity, low production cost and spherical particles meet the production requirements of slow release fertilizer. The final stage of NPK fertilizer production and processing is coating. After particle coating, it becomes slow release fertilizer.