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In recent years, the global NPK compound fertilizer market has seen tremendous growth, because people are increasingly aware of the urgency and necessity of balanced fertilization, and the development of NPK compound fertilizer production technology and formula has also played a certain role. In addition, NPK compound fertilizers usually have more premium space than single fertilizers. Therefore, many manufacturers put NPK compound fertilizers with more premium space than single fertilizers. Therefore, many manufacturers have included NPK compound fertilizers in their product portfolios.

The common granulation technology of compound fertilizer includes drum granulation, disc granulation, spray granulation, tower granulation and so on.

The high-tower nitrate rotating granulation method produces high-concentration nitro compound fertilizer. This technology sprays nicotine, phosphorus and potassium melts from the top of the tower, cools and agglomerates into granules during the landing process. In ammonium nitrate production enterprises, the use of high tower melting granulation method to produce compound fertilizer has the following advantages:

First, it can directly use concentrated ammonium nitrate solution and crushed solid ammonium nitrate for crushing to produce compound fertilizer. This operation simplifies the production process and ensures production safety.

Secondly, the melt rotating granulation process makes full use of the heat energy of the ammonium nitrate concentrate, the moisture content of the material is very low, and the drying process is not required, which greatly saves engineering consumption.

Drum granulator is the most widely used compound fertilizer processing equipment in compound fertilizer production. The formula limit is relatively small, and partial ammoniation can also be used. For most types of equipment, the production line can use 2-3 million units, the daily output is more than 280-400 tons, and the formula is more than 500 tons. Due to the small formula limit, high output, low investment, short construction period and other advantages, drum granulation technology is favored by many compound fertilizer manufacturers. And it is adopted by more and more compound fertilizer manufacturers. Using this method, we can use a drum granulator to complete the production process.

FPC independently develops and produces a complete set of fertilizer equipment such as fermentation equipment, drying equipment, granulation equipment, screening system, and batching system suitable for the production of organic fertilizer and bio-organic fertilizer. Welcome to visit our official website. https://www.fertilizerplantcost.com/npk-fertilizer-plant-cost/

According to relevant information, the complete NPK compound fertilizer production process flow can usually be divided into: raw material batching, raw material mixing, raw material granulation, particle drying, particle cooling, particle classification, finished product coating, and final finished product packaging. The complete set of FPC compound fertilizer equipment has low investment, quick results and good economic benefits. The complete set of equipment has a compact flow layout, scientific and reasonable, energy-saving and consumption-reducing, stable operation, reliable operation and convenient maintenance. The raw materials have wide adaptability, suitable for the granulation of various raw materials such as compound fertilizer, medicine, chemical industry, feed, etc., and the product granulation rate is high. It can produce compound fertilizers of various concentrations and various types (including organic fertilizer, inorganic fertilizer, biological fertilizer, magnetic fertilizer, etc.).

What is detailed NPK compound fertilizer production line?

The process flow of NPK compound fertilizer production line is as follows:

• Raw material ingredients: urea, ammonium nitrate, ammonium chloride, ammonium sulfate, ammonium phosphate (monoammonium phosphate, diammonium phosphate, heavy calcium, ordinary calcium), potassium chloride (potassium sulfate) and other raw materials are equipped in a certain proportion (according to Market demand and soil testing results in various places).
• Mixing of raw materials: Stir the prepared raw materials evenly to increase the uniform fertilizer efficiency content of the entire fertilizer particles.
• Raw material granulation: send the uniformly stirred raw materials to the granulator for granulation (rotary drum granulator or extrusion granulator can be used).
• Granule drying: The granules made by the granulator are sent to the dryer, and the moisture contained in the granules is dried to increase the strength of the granules and facilitate storage.
• Granule cooling: The temperature of dried fertilizer granules is too high and easy to agglomerate. After cooling, it is convenient for bagging storage and transportation.
• Particle classification: The cooled particles are classified, the unqualified particles are crushed and re-granulated, and the qualified products are screened out.
• Finished film: Coating qualified products to increase the brightness and roundness of the particles.
• Finished product packaging: Pack the film-coated particles, that is, the finished product, and store it in a ventilated place.

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Potassium dihydrogen phosphate

Potassium dihydrogen phosphate is a kind of high concentration phosphorus potassium binary compound fertilizer, pure white or grayish white crystal, nutrient is 0-52-34, small hygroscopicity, good physical properties, soluble in water, water solution ph3-4, expensive.

Potassium dihydrogen phosphate is suitable for seed soaking, seed dressing and topdressing. The soaking concentration was 0.2% and the soaking time was 12 hours. Soybean and wheat were soaked in 30kg and 50kg solution, respectively. Seed dressing is usually sprayed with 1% concentration and seed mixed on the same day. The spraying concentration was 0.2% – 0.5%, and 50kg-75kg solution was used every 667m2. Choose to spray the leaves on the ground on a sunny afternoon without dripping. Wheat at jointing booting stage and cotton before and after flowering were sprayed three times. Spraying 0.5% potassium dihydrogen phosphate solution during fruit expansion and coloring has a good effect on improving product quality.

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Potassium nitrate is usually called pyronitrate. It is recrystallized from sodium nitrate and potassium chloride or extracted from nitroso. Its molecular formula is KNO3. It contains 13% N and 46% K2O. Pure potassium nitrate is white crystal, crude product is slightly yellow, hygroscopic, soluble in water, chemical neutral, physiological neutral fertilizer. It is easy to explode at high temperature and belongs to flammable and explosive substances.

It is suitable for dry land, generally 5-10 kg / 667 m2. It has a good effect on potato, tobacco, beet, grape, sweet potato and other crops that prefer potassium rather than chlorine frost. It has a good response in legume crops. If it is used for other crops, it should be combined with element nitrogen fertilizer to improve fertilizer efficiency. Potassium nitrate can also be used as root topdressing, and the suitable concentration is 0.6% – 1%. In arid areas, it can also be applied with organic fertilizer, the dosage is about 10kg / 667m2.
As the N: K2O ratio of potassium nitrate is 1:3.5, the content of potassium is higher, so the calculation of fertilizer should be based on the content of potassium.

The third process is the granulation process of granular NPK fertilizer production line. In this process, the rotary drum granulator is an important equipment with a production capacity of 5-20 T / h.

Drum granulator is a kind of molding machine which can make material into specific shape. It is one of the key equipment of NPK compound fertilizer production line, suitable for cold and hot granulation and batch production of high and low concentration compound fertilizer. The main working mode is wet granulation.

Pelletizing process fertilizer production line

The rotary drum plays an important role in the granulation process of the world-class 50 million T / a NPK compound fertilizer production line.

More detailed info, go to https://fertilizergranulatormanufacturer.com/npk-compound-fertilizer-granulation-equipment/

NPK compound fertilizer contains two or more kinds of macroelements, which can provide rich nutrition for the growth and development of soil and plants. What should be paid attention to when applying NPK compound fertilizer?

There are different concentrations of compound fertilizer, we should pay attention to choose the appropriate concentration. At present, most compound fertilizers are distributed according to the average nutrient status of soil types and the proportion of fertilizer required by crops in a certain area. There are high, medium and low concentration compound fertilizers on the market.

How to make npk compound fertilizer granules? Go to https://fertilizerplantequiment.com/compound-fertilizer-production-line/

Generally, the low concentration of total nutrients is between 25% ~ 30%, the medium concentration is between 30% ~ 40%, and the high concentration is more than 40%. And crops. Generally speaking, high concentration compound fertilizer is used for economic crops with good quality, less residue and high utilization rate. The concentration of compound fertilizer is high. Avoid direct contact between seeds and fertilizer. The nutrient content of compound fertilizer is high. If the seeds or seedling roots are directly contacted, the emergence of seedlings will be affected, and even the roots will be burnt. When sowing, seeds should be mixed with acupoints, and compound fertilizer should be applied in strips with an interval of 5-10 cm.

NPK Drum Granulation Line

Matters needing attention in application of NPK compound fertilizer

It is necessary to pay attention to the nutrient composition of compound fertilizer with different proportion of raw materials. Different brands and concentrations of compound fertilizer use different raw materials, which should be selected and used according to the types of soil and crops. The compound fertilizer containing nitrate is not suitable for leaf vegetables and paddy fields. It is not suitable to use compound fertilizer containing ammonium ion, potassium chloride or chloride ion in saline alkali soil, potassium sulfate in crops or saline alkali soil, and potassium sulfate in paddy field and acid soil, otherwise it will reduce fertility and even poison crops.

The compound fertilizer containing two or more kinds of large elements is easy to volatilize or lose with the rain, and the phosphorus and potassium are fixed by the soil, especially the mobility of phosphorus in the soil is small, and it is not easy to be absorbed. The crop root system is on the surface, which is not conducive to deep root system. The drought condition in the fertilizer can not be dissolved, and it is worse in the development, so the compound fertilizer should go deep into the soil.

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1. Improve soil fertility. After applying organic fertilizer to soil, organic matter can effectively improve soil physical and chemical properties and biological characteristics, solidify soil, enhance soil fertility and buffer capacity, and create good soil conditions for crop growth.

2. Increase production and improve quality. Organic fertilizer is rich in organic matter and a variety of nutrients, providing nutrients for crops. The decomposition of organic fertilizer can provide energy and nutrients for soil microbial activities, promote microbial activities, accelerate the decomposition of organic matter, and produce active substances, which can promote crop growth and improve the quality of agricultural products.

3. Improve fertilizer utilization rate. Organic fertilizer contains many kinds of nutrients, but its relative content is low and its release is slow. However, chemical fertilizer has high nutrient content, less composition and fast release. The organic acids decomposed by organic matter can also promote the dissolution of mineral nutrients in soil and fertilizer. Organic fertilizer and chemical fertilizer promote each other, which is conducive to crop absorption and improve fertilizer utilization rate. Want to make your own organic fertilizer? Go to https://organicfertilizermachines.com/

1. The moisture content and packaging temperature of fertilizer can be reduced by heating the dryer, cooling the dehumidifier and installing air conditioner, so as to make the moisture content of fertilizer lower than 0.6%, prolong the cooling time of fertilizer and reduce the packaging temperature.
2. Adding anti caking agent into the raw material to reduce the physical and chemical reaction between particles.
3. The uniformity of fertilizer particles can be further improved by improving the screening system.
4. Reduce the storage height and pressure of fertilizer.

How does the dealer do it?

1. Reduce the temperature and humidity of the warehouse, put the fertilizer warehouse in a cool and dry place, ensure no water leakage on the roof and no water accumulation on the ground, set fans in the warehouse, and cool and dehumidify if necessary.

New Type Organic Fertilizer Production Line

2. After a period of time, the fertilizer is often turned, especially the fertilizer with high nutrient content, which is easy to caking after a long time, so we should pay more attention to turning the fertilizer frequently.

3. The fertilizers easy to produce chemical reaction shall be stacked separately to prevent chemical reaction caking.
4. Reduce the height of compost with certain machines, reduce the pressure between particles.

5. Avoid blind ordering, reduce inventory pressure, prevent fertilizer accumulation time is too long caking.
6. Select products from regular manufacturers to prevent uneven granulation and agglomeration.

Now, I would like to introduce the production line of roller granulator to you

Features of production line:

1. The roller granulator has no drying process, normal temperature granulation, one-time molding, less investment, quick effect and good economic benefit.
2. Compound fertilizer roller extrusion granulator has the advantages of small power, reliable operation, no waste discharge, stable operation, convenient maintenance, reasonable process layout, advanced process and low production cost.
3. Roller granulator can be widely used in raw materials, compound fertilizer, medicine, chemical fertilizer, feed, coal granulation. Metallurgical and other raw materials can produce various concentrations and types of compound fertilizers (including organic fertilizer, inorganic fertilizer, bio organic fertilizer, magnetic fertilizer, etc.).
4. Roller granulator, especially raw materials such as carbonated soil, ammonium sulfate and compound fertilizer, fills the gap in China and is at the leading level in China. It is a national environmental protection technology promotion project.

More detailed info go to https://organicfertilizerplants.com/