How to produce gradual release fertilizer and what equipment is needed?

Production of slow release fertilizer (also known as controlled release fertilizer) It is a process that allows nutrients to be delivered to plants gradually., which can improve fertilization efficiency and minimize environmental impact. To produce this fertilizer, Which ones do the teams need?.

gradual release fertilizer

Steps to produce slow release fertilizer

1.Ingredient selection:

Choose the basic nutrients and compounds that will constitute the core of the fertilizer (For example, nitrogen, match, potassium, and other micronutrients).

2. Granulation

Create granules from the base material using a granulator, which can be a rotating drum, a granulating disc, or a roller compactor.

3. Covering

Apply a layer of material that controls the release of nutrients. for this, It can be used :

Polymer coatings, such as urea-formaldehyde resins or sulfur polymers, control the release of nutrients by regulating the permeability of the coating.

Organic materials such as oils or waxes can act as semipermeable barriers.
Inorganic materials: Materials like clay, the plaster, or slow release products based on sulfur, can be used as coating layers.

Materials like clay, the plaster, or sulfur-based slow release products, can be used as coating layers.

4. Curing and drying

After the covering, The granules are cured and dried to set the coating and prepare the fertilizer for storage and use.. A drying oven or curing room may be necessary.

5. Cooling

Coated granules may need to be cooled before being packaged or stored., for which a rotary cooler can be used

6. Packaging and storage:

Use packaging equipment to fill and seal bags or containers with fertilizer. Storage must be under conditions that prevent degradation of the product..

What equipment is needed?

Rotary drum granulator y The rotary coating machine, which are two common equipment in the field of fertilizer production for the production of slow release fertilizers.

Features of rotary drum granulator:

  • Continuous production: Rotary drum granulator can achieve a continuous production process, which is very important for large scale production.

  • High efficiency: Due to continuous operation mode, the production efficiency of rotary drum granulator is very high.

  • uniform granules: This equipment can produce fertilizer granules of regular shape and uniform size..

  • High Adaptability: Can adapt to the granulation of different raw materials, including chemical and organic fertilizers, inter alia.

  • Energy saving: The design of rotary drum granulator generally considers energy consumption to provide more economical operation..

The rotating drum granulation machine
ROTATORY DRUM COVERING MACH
Rotary drum drying machine
its interior of the rotary drum machine

Features of rotary coating machine:

Simple maintenance:

They are designed to be easy to clean and maintain, reducing downtime.

Applicable to various processes:

You can use different processes such as liquid powder application or liquid coating, adjusting according to the characteristics of the fertilizer and the needs of the coating material.

Efficient coating:

Provides a uniform coating through rotation, ensuring that each granule is effectively covered.

Crowding prevention:

Coated fertilizer granules are not prone to clumping, making it easy to store and use.

Simple operation:

They generally come with automated control systems, making operation easier and improving efficiency.

Alice

Superior Plant Design Engineer

Learn more information about producing slow release fertilizer

Contact us to obtain a fertilizer production line for your plant

Rotary Dryers (Rotary Drum Dryer):

Rotary Chillers (Rotary Drum Cooler):

Rotary dryers are capable of handling large volumes of material, making them ideal for large scale operations.

These dryers usually have good thermal efficiency, which means less heat loss and lower energy consumption.

They can dry a wide range of fertilizer materials, including those with high humidity levels.

Drying uniformity: Rotary motion ensures material is mixed and dried evenly.

be equipped with controls that allow temperature and rotation speed to be adjusted to optimize the drying process.

Essential in the fertilizer manufacturing process to reduce the temperature of the dry granules to a temperature suitable for storage and handling.

Rapid cooling and uniform prevents the adhesion of the granules, keeping them loose and of uniform quality.

They integrate well with the rest of the production line, especially with rotary dryers and granulators, forming a continuous process flow.

Drying and cooling
Drying and cooling
ROTATORY DRUM COVERING MACHINE IN SELLING

Selection and classification are important steps in the production of controlled release fertilizers. Its purpose is to ensure product uniformity and quality., which guarantees homogeneous distribution and effectiveness of fertilizer application in the field.

Selection process:

In this step, the fertilizer particles produced are sift through meshes of different sizes.

The mesh size is determined according to product specifications and market demands..

Larger particles can be crushed and sifted again, while the smaller ones can be recycled or treated as byproducts.

Classification process:

Sorting is the process of categorizing particles by size.

Through equipment such as vibrating or rotating sieves, fertilizer particles are divided into different grades.

Sorting helps meet the needs of different crops and application equipment.

Sieving of particles of suitable size
Detail of the interior of the sieve
The details
High quality materials

Reprocessing:
Fertilizer particles that do not meet standards may need to be reprocessed, as regranulated or recoated.

Dust and waste management:

Dust and small particle residues generated during sorting and sorting must be properly managed to avoid environmental contamination..

Dust collection system

En summary, Controlled release fertilizer production requires multiple carefully designed steps, as well as specific equipment. Starting with material selection, going through granulation, the application of coatings, curing and drying, refrigeration, and finally packaging and storage, Each step is crucial to the quality and effectiveness of the final fertilizer.

Throughout the production process, granulators should be used, coating machines, Dryers, soft drinks, as well as screening and classification equipment. The selection and use of this equipment must be aimed at improving production efficiency., ensure product quality and be environmentally friendly. With the cooperation of these teams, A controlled release fertilizer can be produced that not only meets agricultural needs but is also environmentally friendly..

Frequently asked questions about composting with biochar：

1.What are the benefits of using biochar-based fertilizers in sustainable agriculture??

Biochar-based fertilizers offer significant advantages, such as improving soil quality, The increase in crop production and the promotion of the nutrient cycle. Besides, help reduce dependence on chemical fertilizers, which contributes to more sustainable agriculture.

2. What raw materials are used in the production of charcoal fertilizer?

Various materials are used, like biochar, urea, CALCIO SUPEROSFATE, potassium chloride, magnesium sulphate, soil conditioners (Like potassium humato) and clay minerals. These ingredients provide essential nutrients for plant growth and improve soil properties.

3. What equipment is used in the biochar fertilizer granulation process and what are their differences??

Common equipment includes disc granulator and drum granulator. Disc granulator is suitable for small to medium scale productions, while the drum granulator is more appropriate for larger production scales. Both have their advantages in terms of cost and production capacity..

4. Why is the coating and rounding of carbon-based fertilizer granules important??

These processes improve the stability, the release of nutrients and the visual appearance of the granules. The coating protects the granules and controls the release of nutrients, while the rounding improves its appearance and resistance.

Get a free price within the 24 hours!

    If you have any interest or need for our product, Do not hesitate to send us a consultation!

    Your name *

    Your company *

    Email address *

    Phone number

    Raw materials *

    Ability per hour (t/h)*

    Brief introduction of your project?*

    *We respect your privacy and we will not share your personal information with other entities.