List Headline Image
Updated by organicfertilizermachinery on Sep 11, 2020
 REPORT
4 items   1 followers   0 votes   3 views

NPK fertilizer granulating production line

NPK fertilizer production line equipment has the less investment, good results and the great economic benefits. The complete sets of equipment are compact, scientific and reasonable, and advanced in technology.

Source: https://www.organic-fertilizer-machinery.com/

NPK fertilizer granulation for slow-release granular fertilizer

Slow-release fertilizers mainly apply modern plant nutrition and fertilization theory, and take into account the law of crop nutrition demand, adopt some control mechanism technology to delay the release mode of fertilizer in soil, so that nutrient release mode and crop nutrient absorption are coordinated or synchronized.

NPK fertilizer granulator machine makes powdery fertilizer into granules, so that the fertilizer has good granularity, the fertilizer and the seed can be applied to the farmland together with the seeder. The treatment of the fertilizer granulator machine enables the slow release granular fertilizer to prolong the time for the plant to absorb and utilize the effective nutrients, so that the nutrients are slowly released according to the set release rate and release period.

NPK slow-release granular fertilizer processing

Granular fertilizers are generally divided into two categories, one is made of powdered chemical fertilizers, the other is made by mixing powdered chemical fertilizers and organic fertilizers. Different fertilizers can be granulated by different fertilizer granulator machines, NPK chemical fertilizer can be done by disc granulator, rotary drum granulator or roller fertilizer extrusion granulator, chemical fertilizer and organic fertilizer mixing granulator can be used by organic fertilizer granulator machine.

After the fertilizer is made into granules, the granules are dried through a series of NPK fertilizer production and processing, so that the granules can be easily stored for a long time. NPK fertilizer production line is mainly include crushing, granulating, drying, cooling, packaging. Fertilizer granulator machine is the core of granular fertilizer treatment.

As a fertilizer machine manufacturers, Zhengzhou Huaqiang Company has been devoted to the research and development of various slow-release fertilizer equipment for a long time. We has designed a variety of fertilizer granulator and matching fertilizer production equipment. We can customize fertilizer production process according to the needs of fertilizer plants to produce special plant slow-release fertilizer granules.

Several basic granulation methods of NPK fertilizer

Mixing granulation of different NPK fertilizers is the core of compound fertilizer processing. Fertilizer production line generally uses the following methods to granulate:

  1. Extrusion granulation is a method of making dry powder or wet powder containing binder into cylindrical, spherical or sheet shape by mechanical processing such as extrusion, roller extrusion or pressing. The technology of dry granulation is used in the flat die pellet mill, the ring die pelleting machine and the double roller extrusion granulator.

  2. Agglomerating granulation, which is under the action of rotation, vibration, agitation and so on, makes the wet powder in motion agglomerate. Or use the fluidized bed to make the material obtain the cohesive force by supplying the spray liquid binder) so as to grow into the appropriate particles. This method is used in disc granulator and roatry drum granulator.

  3. Crushing granulation, which is to crush the block material into particles of appropriate size.

  4. Melt granulation, which is a method of cooling and hardening molten liquid for granulation.

  5. Spray granulation. It is a method of directly forming granules after concentrating the solid in the liquid.

  6. The method of crystallization and granulation in liquid phase is to make materials precipitate and crystallize in liquid phase, at the same time, agglomerate into spherical particles by the action of liquid bridging agent and agitation. This technology is widely used in pharmaceutical industry. Because the shape of the particles is spherical, it is also called spherulite granulation, which is called spherulite granulation for short. Spherulite is a kind of spherical particle formed by the crystallization and aggregation of pure materials. It has good fluidity, filling and compression formability. In recent years, the technology has been successfully applied to functional pellets.

With the diversification of raw materials, fertilizer equipment manufacturers are constantly developing new granulation equipment. Huaqiang fertilizer equipment factory provides many granulators such as roller extrusion granulator, flat die pellet mill, fertilizer granulator, pan granulator, rotary drum granulator, etc., as well as BB fertilizer equipment and NPK fertilizer production line supporting equipment to the majority of fertilizer enterprises.

Main advantages and disadvantages of granulation process and technology of potash fertilizer

The potassium fertilizer is fed into the disc granulator, so that the material gradually piles up by itself until it reaches the required particle size. When the raw materials are piled up on the disc, the binder can be added to support the agglomeration of the materials. Since water will be added to the disc during granulation, additional drying process is required for the fertilizer production line when using this method of rolling raw materials into balls.

Advantages and disadvantages of potash fertilizer granulation

  1. The granulation of potash fertilizer has many advantages. This non pressure agglomeration technology can produce particles with smaller density, so that the particles can decompose rapidly. Because most of the potash fertilizer can be used as fertilizer after processing, the ability to decompose and provide nutrition faster is the inducement to choose potash fertilizer particles. It is an ideal product for fertilizer compounds with fixed formula requirements that require rapid nutrient delivery. The round granular potash fertilizer is also easy to handle, and the fineness of potash fertilizer is lower than that of compacted particles.

  2. The main disadvantage of potash granulation is that the processing cost is high, and potash particles are considered as high-quality products. Therefore, it is not generally produced like compacted particles. However, it is worth mentioning that the disc granulator is the ideal choice (as opposed to the fertilizer extrusion production process) due to the hardness of potassium salt in the treatment of some potassium salt derivatives.

Granulation technology of potash fertilizer

Disc granulator machine is widely used in the field of potash fertilizer granulation, NPK fertilizer granulator can also be used in the processing of potash fertilizer and a variety of compound fertilizers. The disk type fertilizer granulator is a new type of fertilizer granulator: its granulation rate can reach more than 95%, the main gear of the granulator is quenched with high frequency, the service life is doubled, the disk of the disc pan granulator is of arc structure, lined with high-strength fiberglass, and the bottom of the disk is strengthened by a number of radiation steel plates; it is durable and never deformed. After the potassium fertilizer powder enters into the pelletizing plate, the material continuously rotates and is sprayed by the pelletizing plate, so that the materials stick together to form spherical particles.

4

Fertilizer production line should be scaled and standardized

Fertilizer production line should be scaled and standardized

If we want to improve the operation level of fertilizer production, we need to speed up the improvement of the level of complete fertilizer production line plant. We need to cultivate a new type of fertilizer equipment operation and service main body, and support the development of complete fertilizer production equipment better. Then fertilizer processing enterprises should also make fertilizer production lines form large-scale and standardized, reduce production costs and improve efficiency.

In order to meet the needs of agricultural fertilizer, the government should encourage some organic fertilizer equipment manufacturers to become the main production body of their own operation, so as to gain profits in the whole chain and make the service organizations grow rapidly. Promote the fertilizer production line to carry out horizontal joint and vertical cooperation, explore and develop, and form a large-scale, standardized and full process operation service capacity, so as to provide comprehensive support for promoting the complete set of organic fertilizer production equipment.

Many countries and regions are lack of complete fertilizer production machinery, while some fertilizer production operations are complex and process design requirements are difficult. Therefore, funds can be set up for the introduction, digestion, absorption and innovation of complete fertilizer production line. Huaqiang fertilizer granulator manufacturer has many years of experience in the field of fertilizer equipment. We provide equipment for fertilizer producers in many countries and plan the site construction scheme for them. On the other hand, the local government should increase the investment in agricultural equipment research and policy support. At the same time, we will formulate and implement a variety of preferential policies, and further increase policy support,

The fertilizer plant should vigorously develop equipment knowledge and technical training for the complete fertilizer production line. Taking the operation of the disc granulator as an example, special training activities are carried out on the core equipment in production to further strengthen vocational skills training and identification. At the same time, strengthen the business training of complete sets of fertilizer equipment technology and extension personnel.

Fertilizer production lines should be scaled up and standardized, and the use of waste materials should be returned to agriculture, which is conducive to the vigorous development of ecological and environmentally friendly breeding industries, and the active promotion of ecological breeding models to achieve multi-level recycling and sustainable development.