The role of uniform feeder in fertilizer production line

fertilizer granulator Aug 20, 2025

In the continuous process of fertilizer production, the uniform feeder is the “nerve center” to ensure the coordinated operation of all links. Whether in compound fertilizer production line or organic fertilizer production line, it can improve the stability of raw material supply by more than 50%, and reduce product quality fluctuations from the source.

The uniform feeder adopts a design combining spiral conveying and frequency conversion speed regulation. The conveying screw is made of wear-resistant alloy material, which can adapt to raw materials with different physical properties such as urea granules, phosphate rock powder, fermented organic fertilizer, etc. The feeding amount can be set with an accuracy of ±2%. It can automatically adjust the conveying speed according to the needs of subsequent crushing, mixing, granulation and other processes to avoid raw material accumulation or feed interruption.

In the compound fertilizer production line, it can accurately convey basic raw materials such as nitrogen, phosphorus, and potassium according to the ratio, so that the nutrient deviation in the mixing link is controlled within 2%, which is much better than 8% of manual feeding. When handling wet organic fertilizer raw materials, its anti-blocking spiral structure combined with the vibration device can effectively avoid material adhesion and blockage, ensuring that the feeding amount per minute is stable at more than 98% of the preset value.

Compared with traditional feeding equipment, the uniform feeder does not require frequent manual adjustment, can reduce 80% of operational intervention, and reduce energy consumption by 30%. The material level sensor equipped with the equipment can monitor the inventory of the silo in real time, automatically start and stop the feeding, and realize unmanned continuous operation.

Whether it is connected to the crushing equipment or the mixer, the uniform feeder can lay a good foundation for the subsequent processes through the stable supply of raw materials. Choosing an appropriate uniform feeder can make the fertilizer production process smoother, the product quality more stable, and demonstrate the core value in large-scale production.

Application of Disc Granulators in NPK Fertilizer Production Lines

fertilizer granulator Aug 20, 2025

In the NPK fertilizer production line, disc granulators are a widely used and highly favored granulation equipment.

The disc granulator‘s structure is relatively simple yet unique. It primarily consists of an inclined disc, a drive mechanism, and a spray system. The disc, the core of the granulation process, is typically constructed of high-strength steel to ensure it can withstand the various forces involved in the granulation process. The drive mechanism provides stable rotational power to the disc, ensuring it rotates at an appropriate speed.

The disc’s operating principle is based on the movement and interaction of the materials within the rotating disc. When the mixed NPK fertilizer raw materials are fed into the rotating disc, the disc’s tilt and rotational motion cause the materials to roll upward along the disc’s inner wall due to a combination of centrifugal force, friction, and gravity. During this rolling process, a spray system applies a binder to the material. The binder acts like “glue,” gradually binding the loose raw material particles together and causing them to aggregate and grow. Over time, these agglomerated particles continuously roll and collide within the disc, further compacting and shaping them, ultimately forming relatively uniformly sized round granules that roll off the disc’s edge, completing the granulation process.

Disc granulators offer numerous advantages. First, they produce fertilizer granules with high roundness, excellent appearance, and strong market competitiveness. Second, they are relatively simple to operate and easy to master, requiring minimal operator skill. Furthermore, disc granulators are highly adaptable and can produce fertilizer granules of varying sizes to meet diverse market demands by adjusting parameters such as disc speed, tilt angle, and binder spraying rate to meet specific production needs.

However, disc granulators also have limitations. For example, compared to some large-scale granulation equipment, their production efficiency may be relatively low, making them less suitable for large-scale industrial production. Furthermore, when processing high-viscosity raw materials, material may stick to the disc, affecting granulation efficiency and equipment operation. Nevertheless, due to their unique advantages, disc granulators still play an important role in the production of NPK compound fertilizers by small and medium-sized enterprises, as well as in production scenarios where the appearance of fertilizer granules is a high priority.

Where are flat die granulators used?

fertilizer granulator Aug 19, 2025

With its unique extrusion molding principle, flat die granulators have demonstrated strong application potential in a variety of fields, making them an ideal choice for small- and medium-scale production. Their core structure consists of a flat die and a pressure wheel. The rotation of the pressure wheel squeezes the material through the die holes, forming cylindrical pellets. This simple and direct operation gives them wide applicability.

Flat die granulators perform exceptionally well in fertilizer production lines. When processing bio-organic fertilizers, they can directly pelletize wet fermented materials without the need for additional drying pretreatment, preserving the activity of beneficial bacteria while streamlining the production process. For nitrogen, phosphorus, and potassium compound fertilizers, their powerful extrusion capabilities can compress mixed powders into high-strength pellets, effectively eliminating the clumping problem associated with traditional pelleting. They are particularly suitable for producing high-concentration specialty fertilizers.

Flat die granulators are also essential for the feed processing industry. For poultry and livestock feed, they can compress raw materials such as straw powder and soybean meal into pellets, reducing feed losses during transportation. High-temperature extrusion kills parasite eggs in the raw materials, enhancing feed safety. In aquatic feed production, pellet density can be controlled by adjusting die hole size to meet the feeding needs of fish in different water layers.

In the environmental protection field, flat die granulators are a valuable aid in solid waste treatment. They can compress municipal sludge, agricultural and forestry waste, and other materials into fuel pellets, realizing waste resource utilization. These pellets have high combustion efficiency and low pollutant emissions, providing new ideas for the development of new energy sources.

The flat die granulator‘s advantages also lie in its flexible operation. By simply replacing dies with different apertures, a wide range of pellet specifications can be produced to meet the needs of diverse industries. The equipment also occupies a small footprint and is easy to install and maintain, making it suitable for small and medium-sized enterprises. As the concept of green production becomes increasingly popular, the flat die pelletizer, with its high efficiency, energy conservation, and versatility, continues to provide a reliable solution for material forming in various fields.

What is the production process of an organic fertilizer production line?

fertilizer granulator Aug 18, 2025

In terms of equipment, an organic fertilizer production line requires a fermentation compost turner, fertilizer crusher, fertilizer mixer, fertilizer granulator, fertilizer dryer, fertilizer cooler, fertilizer screening machine, fertilizer packaging machine, fertilizer conveyor, and fertilizer coating machine.

The raw materials used in organic fertilizer production vary widely, including livestock and poultry manure, municipal sewage sludge, and animal and plant residues. These raw materials are rich in organic matter, nitrogen, phosphorus, potassium, and other nutrients, providing essential nutrients for crop growth and are available at low prices.

How an organic fertilizer production line works:

Organic fertilizer processing primarily involves collecting, crushing, and mixing the raw materials. The raw materials are then mixed according to the desired formula, and the moisture content and carbon-nitrogen ratio are adjusted before the fermentation process begins.

Fermentation compost turning machines: Assist in turning the compost during the fermentation process, provide sufficient oxygen, and control the temperature to ensure uniform and thorough fermentation.

Fertilizer mixers: If the size and state of the fermented material are inconsistent, a semi-wet material grinder can be used for fine grinding.

Fertilizer Granulator: The crushed material is processed into uniformly sized organic fertilizer granules by the organic fertilizer granulator.

Fertilizer Cooler: After granulation, the organic fertilizer still contains approximately 30% moisture. To increase its strength, the granules need to be cooled for later storage and transportation.

Fertilizer Screening Machine: After granulation, a small number of unqualified granules, some too large and some too small, will be produced. The fertilizer screening machine is used to separate these granules. Oversized granules are returned to the fertilizer crusher, while undersized granules are returned to the fertilizer granulator for regranulation. Qualified granules are then sent to the automatic packaging machine.

Fertilizer Packaging Machine: The finished organic fertilizer granules are packaged by the automatic packaging machine, completing the entire process.

It should be noted that the above configuration is for a typical organic fertilizer production line and may not be suitable for all situations. In actual production applications, different manufacturers may have different requirements regarding site and raw materials, and adjustments may be required based on actual needs.  

The secrets of organic fertilizer production line and bio organic fertilizer production line

fertilizer granulator Aug 16, 2025

In agricultural production, the quality of fertilizer directly affects the growth and harvest of crops. Today, let’s take a deep look at the differences between organic fertilizer production line and bio organic fertilizer production line to help you make a better choice.

Organic fertilizer production line mainly uses animal and plant residues, such as livestock and poultry manure, crop straw, etc. as raw materials. After collection, pretreatment is first carried out, such as crushing and mixing, to make the raw materials uniform in texture. Then enter the key fermentation and decomposition link, using natural microorganisms to decompose and transform organic raw materials under suitable temperature, humidity and ventilation conditions. This process often takes several months to make organic matter reach a stable state and finally make organic fertilizer.

Bio organic fertilizer production line goes a step further on this basis. After the raw materials are also collected, pretreated and conventionally fermented and decomposed, wait for the material temperature to drop to a suitable range (usually not more than 40℃), and evenly mix in specific microbial agents, such as Bacillus, yeast, etc. These microorganisms play an important role in the follow-up, and can decompose nutrients such as insoluble phosphorus and potassium in the soil and convert them into plant-absorbable forms. However, since microorganisms are sensitive to the environment, the subsequent storage and transportation conditions must be strictly controlled to prevent inactivation.

From the production process point of view, the bio-organic fertilizer production line adds the addition of microbial agents. It seems simple, but it has higher requirements for equipment and environment, and the production process is more complicated.

In terms of product effect, organic fertilizer can improve soil structure, slowly release nutrients, and provide long-term nutrition for plants; bio-organic fertilizer not only has these functions, but also can prevent and inhibit pests and diseases, enhance plant resistance, reduce the use of pesticides, and improve the quality and safety of agricultural products.

Whether you want to invest in organic fertilizer production or focus on bio-organic fertilizer processing, choosing our equipment can escort your production, help you produce high-quality fertilizers, and seize the opportunity in the field of agricultural planting.

Drum Granulator: A Quartet of Process Innovations

fertilizer granulator Aug 16, 2025

In modern fertilizer production, rotary drum granulators are redefining granulation standards with four innovative features. How do these carefully designed functions work together to create energy-efficient production miracles?

Drum granulators are commonly used in organic fertilizer production because they efficiently form moist organic material into uniform granules through a rotating drum mechanism. They are a key component in organic fertilizer production equipment, which also includes mixers, crushers, dryers, and screening equipment. While granulators specialize in granulation, complete production lines (organic fertilizer production equipment) integrate multiple steps to transform raw organic waste into high-quality fertilizer.

“From steam conditioning to self-cleaning design, each innovation makes granulation more precise and efficient”

Intelligent Steam Conditioning System

The revolutionary steam injection technology acts like precise “thermal therapy” for materials. Steam penetrates the material bed, raising temperature while dissolving salts to form a liquid phase film, enabling ideal liquid phase conditions at low moisture content. This innovation reduces drying evaporation water by 40% and energy consumption by 35%.

⚗️Controlled Ammoniation System

Ammonia gas can be precisely introduced into the drum as needed to promote chemical reactions. This controlled ammoniation technology acts like a “chemical catalyst”, not only adjusting product pH but also improving granule structure, enhancing slow-release performance by 30%.

Self-Cleaning Liner Design

The special rubber or polypropylene liners embedded in the drum wall, combined with cleverly designed air holes, form an intelligent self-cleaning system. When liners rotate to the top, they sag under their own weight, causing adhered materials to fall off automatically. This “self-renewal” mechanism solves traditional granulator sticking problems, reducing maintenance costs by 60%.

Extensive Material Adaptability:

Low-solubility Materials High-solubility Materials Organic Matter Trace Elements

Whether it’s poorly soluble potassium sulfate and potassium chloride, highly soluble urea and ammonium nitrate, or various organic materials and trace elements, this system handles all perfectly. This “non-picky” characteristic reduces formula changeover time by 80%.

Four innovations, four advantages – the drum granulator is driving fertilizer production toward greater efficiency and intelligence with its technological charm.

Reasonable ratio of raw materials is the basis to improve the ball formation rate

fertilizer granulator Jan 5, 2021

Single chemical fertilizer can not meet the needs of various nutrients of plants. NPK fertilizer production line mixes and granulates different nutrients to improve fertilizer efficiency. So how to improve the pelletizing rate of fertilizer?

1. Reasonable match of fineness of raw materials. According to our experience, the fineness of the whole raw material should be matched as follows: about 30% – 40% of the raw materials with 100-60 mesh, about 35% of the raw materials with 60 mesh to 1.00mm diameter, and about 25% – 30% of the small particles with 1.00-2.00mm diameter. The higher the fineness of the material, the better the viscosity, and the higher the surface finish of the granulated particles. However, in the production process, the proportion of high fineness materials is too high, and it is easy to cause the bad problems such as too large particles, irregular particles and material wall sticking due to the good viscosity.

2. The reasonable collocation of cohesive material and dispersive material. In the production process formula, the proportion of viscous raw materials is high, the organic fertilizer granulator is easy to form balls, the proportion of dispersive raw materials is high, and there are more fine powders. In the conventional formula, the proportion of low concentration compound fertilizer viscosity raw material is 45% – 50%, and the proportion of high concentration compound fertilizer viscosity raw material is 35% – 40%. At the same time, it should be combined with material fineness. With bad matching, there will be no fine powder, no particles, particles are not round, easy to get big balls and other problems in the production process.

3. The chemical reaction between materials should be considered when formulating. After the formulation of some materials, free water will be precipitated during the production process, which will cause the liquid phase of the material to exceed the standard and cannot be produced normally. After matching, some raw materials will greatly reduce the critical relative humidity of the mixture. During the process of organic fertilizer production equipment, due to the large amount of moisture absorption Unable to produce normally. Therefore, the chemical reaction between the materials must be considered when formulating to achieve a reasonable match between the materials.

4. Comprehensive water content of the material after mixing. The water content of the raw materials directly affects the pelletizing effect of the disc granulator machine. Some materials are stirred into mud without steam and water in the production, resulting in the failure of normal production. Therefore, keeping a low water content of the material is conducive to the addition of steam in the granulation, to the improvement of the temperature and viscosity of the material, so as to improve the compatibility between the materials and the balling rate.

How to prevent organic fertilizer facilities from rusting in rain

fertilizer granulator Nov 19, 2020

Fertilizer machine is valuable. After we buy organic fertilizer equipment, we should also pay attention to maintenance in daily use. Rust is a problem often encountered by the organic fertilizer production equipment, especially in rainy days. Although the machine is not exposed to rain, it will still find rust when it is used later. What should be done in this case? Let’s explain how to prevent the fertilizer facilities from rusting in rainy days.

There is more rain in autumn. In rainy season, people will store the organic fertilizer equipment in the designated place as usual, but when it is reused after rainy day, it will be found that the organic fertilizer equipment is rusty, some mechanical parts are aging, and some parts are wet. Therefore, in view of these problems, how to keep the organic fertilizer plant in rainy days is very important.

1. Rust proof iron work. At present, the use of organic fertilizer production facilities and most of the accessories are made of iron. They are not well preserved, easy to rust and shorten the service life. The machine should be painted with antirust paint and stored in a ventilated and dry place. It is better to set up canopy for compost turning machine.

2. Anti aging of rubber parts. When the rubber parts of the organic fertilizer production equipment are damped or stained with oil, they are easy to age and crack, thus shortening their service life.

3. Protect the motor from moisture. The motor of the organic fertilizer granulator is not used for a long time, and it should be placed in a ventilated, dry and clean warehouse. If the motor is placed in the fertilizer wetland or the place easy to be wet by rain, the motor will be damped and the insulation performance will be reduced, which has caused short circuit, electric leakage, ironing and even burning coil.

The above is a simple way to prevent the equipment from rusting. As for NPK fertilizer production line and other heavy machinery, we should pay more attention to the maintenance and do a good job in the daily maintenance of the equipment, which is conducive to prolonging the service life of the fertilizer equipment and reducing the number of failures of the organic fertilizer equipment in use.

How to deal with livestock manure on large farms

fertilizer granulator Jun 19, 2020

For farms, the biggest environmental problem is that there is no place to stack a lot of feces. If these excrement are not managed scientifically, it will harm human and animal health and pollute the surrounding environment. The aquaculture industry needs to be carried out, and environmental protection treatment also needs to be paid attention to, so what are the methods of manure treatment in the farm? How to deal with feces to achieve harmless requirements? Is there a technology that saves money and is simple? The most effective way is to use organic fertilizer production equipment to process manure into fertilizer products.

How to make waste into organic fertilizer is an urgent need for farmers to understand. What kind of process is simple and can solve the problem to the greatest extent? If the feces of the farm are treated innocuously, several aspects should be paid attention to:

1. Collect and stack dry manure. The stacking place must be rainproof and impermeable, and be cleaned and transported regularly. The ground of the stacking place shall be hardened completely, and the leaching solution collection ditch shall be built around, and the collection ditch shall be connected with the biogas digester. The volume of the stacking area depends on the scale of the farm. Taking the pig manure treatment method as an example, the required volume for every 10 pigs is usually 1 cubic meter. When the water content of stored pig manure is too large, it needs to use solid-liquid separation equipment for dehydration treatment, which can reduce air and water pollution.

2. Anaerobic fermentation is carried out for faeces, urine and sewage. The biogas produced can meet the requirements of life and part of production energy in the field and reduce the production cost. The size of the biogas digester depends on the scale of the farm. The required biogas digester volume for every 10 pigs is about 2 cubic meters.

3. Manure can be directly processed into organic fertilizer or fermented into biogas residue and then processed into organic fertilizer. Due to the large investment in biogas system, this method is suitable for large-scale farms. Manure production of organic fertilizer can not only solve the problem of a large number of manure pollution, but also turn waste into treasure to produce a large number of green ecological fertilizer. Using fertilizer granulator to process manure compost can also increase the price of fertilizer and further create economic and social benefits for enterprises.

Through the multi-level recycling mode, the farm not only solves the problem of excrement, but also obtains additional income. We are a professional fertilizer machine manufacturer, providing fertilizer production line and organic fertilizer equipment.

How to Use Organic Fertilizer Equipment to Produce Tomatoes Fertilizer

fertilizer granulator Jun 17, 2020

The application of chemical fertilizers in agricultural production can increase the yield of crops, but it will cause soil compaction, the quality of agricultural products will decline, and the nitrate content in fruits and vegetables will be too high. Bio-organic fertilizers are increasingly used in agricultural production. The organic fertilizer production equipment can combine organic matter and inorganic fertilizer to make fertilizer suitable for tomato development.

Organic fertilizer production line to produce special tomato fertilizer

Organic-inorganic fertilizer production line mix organic matter and inorganic fertilizer in proportion to prepare fertilizer. According to the formula blending two kinds of fertilizers, the automatic batching system mixes the raw materials strictly according to the parameters, so that the raw materials are suitable for the growth of tomatoes, and automatic batching system can mix organic fertilizers and inorganic fertilizers according to the setting of 3:7. Mixed uniform particles are agglomerated and granulated by organic fertilizer granulator machine. Granular organic fertilizer keeps good characteristics of fertilizer. Fertilizer granulatormachine is suitable for mixing and granulating of various materials. The granules made by the machine have high strength and are not easy to break. After a series of treatments, such as drying and screening, fertilizer granules are special organic fertilizer for tomatoes.

Advantages of products of organic fertilizer production equipment

1. The combination of bio-organic fertilizer and inorganic fertilizer promotes tomato growth, nutrient uptake by root system and nutrient utilization efficiency. When bio-organic fertilizer is applied alone, the nutrient content of the fertilizer used is lower than that of inorganic fertilizer, which will have a certain impact on the yield.

2 The application of bio-organic fertilizer can improve the quality and palatability of tomatoes, reduce the nitrate content in tomatoes, and increase the content of vitamin C and reducing sugar.

3. The application of bio-organic fertilizer in tomato production can reduce the occurrence of tomato mosaic virus disease and the effect of disease on Yield and quality.