How to improve the pelletizing rate of NPK fertilizer production

NPK compound fertilizer is characterized by simple composition, high nutrient content, low dosage, quick fertilizer effect, convenient application, transportation and storage, and rapid improvement of yield and quality. In order to produce large quantities of high-quality compound fertilizer, the first step is to produce good fertilizer granules.

The main factors influencing NPK fertilizer production line are as follows:

  • Production equipment;
  • Process technology;
  • Physical and chemical properties of raw materials;
  • Production formula and added conditioner;
  • Air temperature and air volume at the outlet of the dryer;
  • Temperature and liquid phase quantity of granulating materials;
  • Material flow;
  • Material return ratio;
  • Quality of operators;
  • Climatic conditions.

Only by integrating the above factors into making fertilizer granules, can we produce NPK fertilizer with high yield and good quality, one of which is indispensable.

NPK fertilizer production line

 

1. Improving the performance of NPK fertilizer production equipment is the basis

Choose qualified production equipment, choose well-equipped, complete test means, reliable product quality manufacturers, under the guidance of experienced personnel to buy, late equipment management and maintenance personnel to have a certain professional level. Zhengzhou Huaqiang Co.Ltd are leading agricultural fertilizer machine manufacturer in China. We has strong technical strength in fertilizer machines. All of our products comply with international quality standards and greatly appreciated in a variety of different markets throught the world.

 

 

2. Choosing ammonium phosphate with good viscosity as raw material is the premise

The pelletization of NPK fertilizer mainly depends on the viscosity of ammonium phosphate and conditioner, and the poor viscosity of ammonium phosphate directly affects the pelletization rate of compound fertilizer. Therefore, when purchasing ammonium phosphate, we should consider not only nutrient content and price, but also its viscosity. From the actual production experience, the viscosity of diammonium phosphate is better than that of monoammonium phosphate.

 

 

3. Ensuring the fineness of raw materials and feedbacks is essential

The finer the powder of the raw material, the better the viscosity of the material, the more important it is to improve the efficiency of the crusher

Chain crusher to help make the big granules into the fine powder and get back to fertilizer granulator machine. It is simple and compact in structure, cover small area, easy maintenance such characters, crushing effect is good, smooth operation, easy to clean.

 

4. Material mixing is an important measure to improve the NPK fertilizer production line efficiency

The material is mixed evenly, on the one hand, the mixer mixes the fresh material evenly, on the other hand, the mixer combines the returned material and the fresh material evenly. Because the fine powder in the returned material is mostly potassium and nitrogen with poor viscosity, it is the material that is least likely to form into a ball, while the fresh material has better viscosity and is easy to form into a large ball in production. Mix the two thoroughly to prevent the formation of large balls and too much powder.

 

5. Suitable moisture and pelletizing temperature are the key

Only when the temperature and water content of granulating materials are adjusted to the optimal point can the granulation area be ensured to be normal.

The disc fertilizer granulator is suitable for the production with small yield, and the rotary drum granulator is suitable for the mass production of NPK fertilizer. Addition of moisture during granulation requires certain experience of operators.

 

 

6. Suitable air volume and stable furnace temperature are the preconditions

The size of the air volume directly affects the drying effect, the air volume in the dryer, the drying effect is good. If the air volume is too large, it is easy to extract the powder in the simplified body, and the wind speed should be less than 2m/s. Best cooling head end temperature difference is about 100℃, the import and export temperature cannot frequent adjustment. When urea is used as nitrogen source, the temperature should be determined according to the amount of urea. The more urea is used, the lower the drying operation temperature will be.

How to Operate Cow Manure Organic Fertilizer Production Equipment

How to deal with cow dung in cattle farm? In the process of cattle breeding, if the cow dung is not handled in time, it will cause air pollution, breed a large number of mosquitoes and flies, pollute the surrounding environment of the farm and cause cattle diseases. Treating cow dung to turn waste into treasure can also bring huge benefits.

Making cow dung into organic manure is one of the main methods to treat cow dung. Dry cow dung contains 10%-20% crude protein, 1%-3% crude fat, 20%-30% nitrogen-free extract and 15%-30% crude fiber, so it has high nutrients. An organic fertilizer production line can efficiently convert cow dung into organic fertilizer.

Organic Fertilizer Production Equipment

Cow Dung Organic Fertilizer Production Equipment and Process Step

1.Fermentation is the first important step

The cow dung produced by a cow in one year requires 4 to 6 cubic meters of space. According to the scale of farming, reasonable construction of cattle dung accumulation fermentation site. Adding 10%-15% straw, rice bran and other supplementary materials to cow dung, and adding appropriate water, the water content of cow dung can be controlled at about 60%, inoculated with starter, and the fermentation time is 15-40 days (depending on the season).

In organic fertilizer fermentation, turning is an important phase. Its purpose is to enable the materials mixed. By the thrown over, it course of the materials make the most contact with the air and get the best fermentation.

Fermentation compost turning machine (Strong maneuverability of mechanical dump operation)

Trough Compost Turning Machine, Double Screws Compost Turning Machine (Suitable for large field flip), Windrow Turner (Suitable for strip stacking).

 

2.Crushing raw material

The fermented materials and other additives are crushed, proportioned and mixed through material grinder and mixer in a certain proportion. The function of this system is to crush, mix and mix compost materials, inorganic fertilizers of nitrogen, phosphorus, potassium and other additives in a certain proportion. Based on years of experience, the following equipment is recommended:

Half-wet Material Crusher

The machine is mainly used to crush materials of biological fermentation organic fertilizer with moisture of 25%~50%. Have good effect on grinding the glass brick, ceramics and broken stone such kinds of hard matter from the city life garbage organic fertilizer.

Horizontal Mixer

Horizontal mixer stir material in batches, material can be mixed completely. High mixing rate, less residual suitable for feed, concentrated feed, premix additives mixing.

 

3.Pelletizing

New Type Organic Fertilizer Granulator is used to granulate the material. The organic fertilizer granulator is the newest technology products by our years of research experience. It process fertilizer powder into granules, it also can be achieved the better effect of grain making to acid and municipal sludge. We also supply disc fertilizer granulator and flat die pelleting machine for organic fertilizer production.

 

4.Drying, cooling and screening

After granulating, the fertilizer moisture is a little high. Use organic fertilizer Rotary Dryer, further remove water, to achieve the standard requirements of organic fertilizer moisture content.

Cooling the particulate matter with a Rotary Cooler helps to store the heat particulate matter from the top of the dryer to the counter-flow cooler. Under the action of the cooling fan, the dry air enters from the lower part of the cooler and exchanges sufficiently with the wet and hot particles from the upper tribe and the lower tribe.

There are some differences in particle sizes of the particles exported from the pelletizing and forming system, which requires sieving and grading. Drum Screener Machine has the advantages of low vibration, low noise and convenient screen change. The organic fertilizer manufacturing process is equipped with automatic feed-back system, which screens the unqualified large and small particulate materials, conveys them through belt hoist, re-crushes them and sends them to the granulator to continue granulating, which is helpful to improve the continuous operation ability of the production line.

 

5.Packing

Packing Machine weighs and packs the particulate matter quantitatively. Automatic quantitative packaging of powder and granules, suitable for flour, starch, feed, food, chemical industry, light industry, building materials industries.

 

Using cow dung as raw material to produce organic fertilizer has the advantages of low cost, stable quality, fluffy soil, improved land consolidation, improved soil fertility, and great marketing space. As a leading fertilizer equipment manufacturer in China, we have a professional organic fertilizer manufacturing process, which can make cow manure into organic fertilizer with high efficiency and benefit.