Why are roller extrusion granulators commonly used in compound fertilizer production lines

fertilizer granulator Sep 27, 2024

The roller extrusion granulator is widely used in compound fertilizer production lines mainly because it has multiple unique advantages and can effectively meet the specific needs of compound fertilizer production. The following is an analysis of the reasons why roller extrusion granulators are popular in compound fertilizer production lines:

1. Flexible applicability of raw materials

The roller extrusion granulation machine can process various dry powder or slightly moist raw materials, including various chemical fertilizers such as urea, ammonium phosphate, potassium sulfate, etc. It can even directly process mixed raw materials, greatly expanding the range of raw material selection and increasing the flexibility and efficiency of the production line.

2. Powerful molding performance

By applying strong pressure to two relatively rotating pressure rollers, the counter roller extrusion granulator can compress loose powder raw materials into dense strips or blocks, and then divide them into uniform particles through a cutting knife. The physical changes under high pressure enhance the structural strength of the particles, resulting in higher compressive strength and better storage performance of the finished compound fertilizer.

3. Good particle quality and uniformity

The particles produced by the roller extrusion granulation mechanism have a smooth surface, regular shape, and consistent size, which is conducive to the uniform distribution of fertilizers and also facilitates packaging and transportation. In addition, this granulation method can ensure the uniform distribution of various components in the compound fertilizer, avoiding the problem of component segregation that may occur with traditional granulation techniques.

4. Characteristics of energy conservation and environmental protection

Compared to other granulation methods that rely on high-temperature melting or chemical reactions, the granulation process of the roller extrusion granulator requires almost no external energy heating, reducing energy consumption and CO2 emissions. Meanwhile, as the entire process is carried out in a closed environment, dust flying is effectively controlled, reducing the environmental burden.

5. Easy maintenance and stable operation

The structure of the roller extrusion granulator is simple, and the main components are easy to disassemble and replace. Daily cleaning and maintenance are relatively convenient. In addition, the equipment runs smoothly, has a low failure rate, and can operate continuously for a long time, ensuring the high efficiency and continuity of the compound fertilizer production line.

6. High degree of automation

Modern roller extrusion granulators often integrate advanced automation control systems, which can accurately regulate parameters such as pressure and speed, achieve optimized management of the production process, and improve the overall intelligence and production accuracy of the production line.

In summary, the roller extrusion granulator, with its excellent adaptability to raw materials, excellent molding effect, energy-saving and environmental protection characteristics, and stable operating performance, occupies an irreplaceable position in the production line of compound fertilizers and has become one of the key technical equipment in modern compound fertilizer production.

What parameters should NPK fertilizer factory pay attention to when choosing a fertilizer granulator

fertilizer granulator Sep 27, 2024

When choosing a fertilizer granulator, NPK fertilizer factory needs to carefully evaluate a series of key parameters, taking into account factors such as production efficiency, particle quality, energy consumption control, and maintenance costs. Here are several important considerations:

1. Production capacity

Determine whether the production capacity of the fertilizer granulator matches the daily/monthly/annual production target of the factory. This involves the hourly processing capacity of the machine, ensuring that the selection can meet the production scale requirements.

2. Particle specifications

Check whether the fertilizer selection granulator can produce the required particle size and shape, including indicators such as diameter, length, density, and hardness. This is particularly important for NPK fertilizers, as different crops and application scenarios may require specific particle characteristics.

3. Raw material adaptability

Understand the adaptability range of the fertilizer selection granulator to the moisture content, particle size distribution, and composition of raw materials. Some models may be more suitable for handling dry or wet raw materials, or have specific requirements for the initial particle size of the raw materials.

4. Energy consumption and efficiency

Compare the energy consumption of different models and prioritize designs that can maintain high-quality particle output while having lower energy consumption. High efficiency means lower costs and higher environmental standards.

5. Maintain convenience

Evaluate the service life, maintenance frequency, and cost of vulnerable parts of the granulator, as well as whether there are convenient cleaning and maintenance channels. Choosing models that are easy to maintain can significantly reduce unplanned downtime and total operating costs during operation.

6. Technical support and after-sales service

Confirm the installation guidance, operation training, regular inspection services, and spare parts supply provided by the manufacturer. A good after-sales support system can ensure the long-term stable operation of the machine.

7. Environmental compatibility

Check the noise level, dust emissions, and other potential environmental impacts of the machine during operation. Choosing equipment that complies with local environmental regulations and corporate social responsibility standards can help avoid future compliance issues.

8. Cost effectiveness

Comprehensively calculate the purchase cost, installation and commissioning cost, operating cost, and depreciation amortization, weigh the initial investment and long-term benefits, and select the most cost-effective solution.

9. Control system

Modern fertilizer granulators are equipped with advanced automation control systems that can monitor and adjust key production parameters in real-time, such as temperature, pressure, speed, etc. This not only simplifies the operation process, but also helps optimize product quality and consistency.

10. User reviews and case studies

Finally, referring to feedback from other users and practical application cases can help you learn from the experiences and lessons of peers, avoid common purchasing pitfalls, and make wiser choices.

In summary, NPK fertilizer factory should comprehensively consider the above parameters when choosing a granulator to ensure that the selected equipment can meet current production needs and be flexibly upgraded in the future with business expansion, bringing long-term value returns to the enterprise.

How to effectively utilize the fertilizer after granulation by organic fertilizer granulator

fertilizer granulator Sep 27, 2024

The fertilizer granulated by the organic fertilizer granulator can be more effectively utilized through scientific methods due to its good physical form and slow-release performance, in order to fully exert its nutritional value and improve soil structure. Here are some recommended effective utilization strategies:

1. Reasonably plan the fertilization time

Apply organic fertilizer in a timely manner according to the different growth cycles and seasonal changes of crops. For example, applying an appropriate amount during the early stages of crop growth to promote root development and seedling growth; During the mid to late growth period, it can be applied according to the crop’s needs to ensure that nutrient supply is synchronized with crop growth and avoid waste.

2. Precise fertilization

Using modern fertilization machinery such as precision fertilizing machines or intelligent drones, variable fertilization is implemented according to the specific needs of crops and soil testing results. That is, the amount and depth of fertilization are adjusted based on the soil fertility status and crop nutritional requirements of different plots to achieve the best fertilizer utilization rate and economic benefits.

3. Diversified fertilization methods

Choose appropriate fertilization methods based on crop types and planting patterns. For example, for fruit trees and vegetables, hole application or furrow application can be used to concentrate organic fertilizer near the plant rhizosphere to promote rapid absorption; For cereal crops, organic fertilizer can be buried in the soil together with the seeds during sowing, or used as a base fertilizer to be deeply applied to the middle layer of the soil.

4. Application of mixed fertilizers

Combining the organic fertilizer processed by the organic fertilizer granulator with an appropriate amount of chemical fertilizer can not only compensate for the insufficient nutrient content of a single organic fertilizer, but also mitigate the environmental risks caused by the quick acting nature of chemical fertilizers. Reasonably proportioning, achieving complementarity, improving the overall utilization efficiency of fertilizers and the sustainability of soil fertility.

5. Combining agricultural measures

At the same time as fertilization, agricultural measures such as deep plowing, straw returning, and green manure planting are adopted to synergistically improve soil structure, increase soil organic matter content, and create a favorable environment for the decomposition and transformation of organic fertilizers, thereby improving the bioavailability of fertilizers.

6. Monitoring and adjustment

Regularly monitor the nutritional status of soil and crops, dynamically adjust fertilization plans based on test results, and avoid environmental pollution and resource waste caused by excessive fertilization. Establish a long-term monitoring system, continuously improve fertilization strategies, and ensure the sustainability of agricultural production.

7. Education, training, and technical support

Train farmers on the correct application methods of organic fertilizers, popularize knowledge of organic fertilizers, and enhance their awareness of scientific fertilization. At the same time, the government and relevant institutions should provide technical support and services to guide farmers in planning reasonable fertilization plans and improving fertilizer management levels.

Through the implementation of the above strategies, not only can the fertilizer produced by the organic fertilizer granulator be maximally utilized, but it can also promote soil health, crop yield increase, and sustainable agricultural development, achieving a dual improvement in economic and ecological benefits.

What are the commonly used organic fertilizer granulators in compound fertilizer production lines

fertilizer granulator Sep 27, 2024

The granulator used in the compound fertilizer production line is different from that in the pure organic fertilizer production line, because compound fertilizers usually contain multiple chemical elements, and their physical properties and granulation requirements are more complex. The granulation of compound fertilizer should not only consider the adhesion of the material, but also take into account multiple factors such as particle hardness, dissolution rate, and nutrient balance distribution. Therefore, the common types of organic fertilizer granulators in compound fertilizer production lines are as follows:

1. High tower melting granulator

Principle: Dissolve or melt solid raw materials and spray them into a high tower to cool and solidify into particles.

Features: It can effectively integrate multiple chemical substances, with uniform particles and high hardness, suitable for large-scale industrial production.

Scope of application: Suitable for making NPK compound fertilizers and other compound fertilizers containing multiple nutrients.

2. Extrusion granulator

Principle: By using a pair or a set of opposing rotating pressure wheels, the pre mixed material is squeezed through a fixed diameter template hole to form a rod-shaped object, which is then cut into particles.

Features: Suitable for processing materials with certain adhesion and fluidity, high granulation efficiency, and good particle strength.

Scope of application: Widely used in granulation of compound fertilizers, organic fertilizers, and biological fertilizers.

3. Drum granulator

Principle: Place the material into a rotary drum, roll it through rotational motion, and gradually aggregate into circular particles with the help of liquid additives.

Features: Suitable for handling materials that are prone to adhesion, the particle size can be controlled by adjusting the speed and humidification amount.

Scope of application: Suitable for granulation of compound fertilizers, organic fertilizers, and organic-inorganic compound fertilizers, especially when there are special requirements for material adhesion and flowability.

4. Dry granulation machine

Principle: The dry powder material is directly compacted into a plate shape by high-intensity pressure, and then crushed into particles.

Features: No need to add additional water or adhesive, suitable for sensitive materials that cannot come into contact with moisture.

Scope of application: Suitable for compound fertilizers that are sensitive to moisture or require preservation of the original characteristics of the material.

Selection Guide

When choosing a granulator in a compound fertilizer production line, the following aspects should be considered comprehensively:

Raw material characteristics: Understand the physical and chemical properties of the raw material, such as whether it is easy to absorb water, whether it contains corrosive components, etc.

Product quality requirements: Determine the particle shape, size, strength, and solubility requirements of the target product.

Production capacity: Select granulation equipment with appropriate production capacity based on the scale and output requirements of the production line.

Economic cost: Evaluate the equipment purchase cost, operating cost, and maintenance cost, and choose a cost-effective solution.

Environmental protection: Considering the requirements of environmental regulations, choose equipment that can reduce dust emissions and noise pollution.

In short, the selection of granulators in compound fertilizer production lines should be based on comprehensive technical and market analysis to ensure that they can meet the requirements of production efficiency and product quality, as well as economic benefits and environmental standards.

Common malfunctions of fertilizer granulators in NPK fertilizer production lines

fertilizer granulator Sep 27, 2024

Fertilizer granulators play a crucial role in NPK fertilizer production lines, however, due to high-intensity continuous operation and complex production environments, they may encounter some common malfunctions. Identifying and resolving these issues is crucial for maintaining the smooth operation of the production line. The following are several common types of malfunctions and their possible causes of fertilizer granulators in NPK fertilizer production lines:

1. Uneven particles or difficult molding

Improper moisture content of raw materials: Excessive or insufficient moisture content can lead to difficulty in shaping or poor shaping of particles.

Mold wear or blockage: The enlargement of the mold aperture or blockage by foreign objects can affect the size and appearance of particles.

2. Overheating of fertilizer granulator

Poor heat dissipation: Poor ventilation or failure of the heat dissipation system leads to heat accumulation.

Overloading: Overloading operation can cause the motor or other components to overheat.

Insufficient lubrication: Lack of sufficient lubrication can increase friction and generate more heat.

3. Abnormal noise or vibration

Loose or damaged parts: Loose or damaged bolts, bearings, or other internal components can cause vibration and noise.

Unbalanced load: Uneven material distribution or asymmetric mechanical components may also cause such problems.

4. Decreased production

Equipment aging: Over time, the performance of the equipment naturally deteriorates, leading to a decrease in output.

Improper operation: Incorrect operation settings or parameter adjustments can also cause a decrease in production capacity.

5. Motor malfunction

Overload operation: Continuous operation beyond rated power can cause the motor to burn out.

Power fluctuation: Unstable voltage may damage the electronic components of the motor.

Short circuit or insulation damage: Aging or damage to wires can cause circuit problems.

6. Lubrication system issues

Insufficient oil level: Failure to replenish lubricating oil in a timely manner can cause dry wear of components and accelerate wear.

Oil contamination: Impurities mixed into lubricating oil, reducing lubrication effectiveness and even damaging the lubrication system.

Solution suggestion:

Regular inspection and maintenance: Follow the manufacturer’s recommended maintenance plan and regularly inspect all parts of the equipment, especially areas that are prone to wear and tear.

Correct operation and adjustment: Strictly follow the operating procedures, adjust equipment parameters in a timely manner, and ensure optimal working conditions.

Timely replacement of parts: Once severely worn or damaged parts are found, they should be replaced immediately to avoid small problems escalating into major malfunctions.

Improve working environment: Maintain good ventilation in the workshop, layout reasonably, avoid excessive accumulation of dust, and reduce equipment burden.

Professional training: Provide professional training to operators and technicians to enhance their problem-solving and emergency response abilities.

By taking the above measures, not only can the failure rate of fertilizer granulators in NPK fertilizer production lines be reduced, but the service life of the equipment can also be extended, ensuring the stable and efficient operation of the production line.

What raw materials can be used to process organic fertilizers with a roller extrusion granulator

fertilizer granulator Sep 27, 2024

The roller extrusion granulator has been widely used in the organic fertilizer production industry due to its unique processing principle and wide adaptability to raw materials. Organic fertilizer granulators can use various organic materials as raw materials to process organic fertilizers, including but not limited to the following categories:

Agricultural Waste

Crop straw: such as corn stalks, rice straw, wheat straw, legume crop stems, etc.

Agricultural product processing by-products: such as sugarcane bagasse, distiller’s grains, fruit peels, shells, etc. from sugar mills.

Fruit and vegetable residues: market waste, food processing plant residues, etc.

livestock manure

Livestock manure: cow manure, pig manure, chicken manure, sheep manure, etc. These manures contain abundant organic matter and nutrients such as nitrogen, phosphorus, and potassium.

Poultry feathers: After pre-treatment such as defatting and crushing, they can also be used as raw materials for organic fertilizers.

Industrial organic by-products

Sludge: Biological sludge from urban sewage treatment plants, which can be used as organic fertilizer raw materials after disinfection treatment.

Biomass waste: residues from the biomass energy industry, such as sawdust, sawdust, rice husk charcoal, etc.

Solid residues from food industry wastewater treatment, such as beer yeast, soy sauce residue, etc.

Forestry waste

Branches and leaves: Branches and leaves trimmed from landscaping can be used as organic fertilizer raw materials after crushing and fermentation.

Wood chips and bark: scraps from the wood processing industry, suitable as base materials for organic fertilizers.

Urban household waste

Kitchen waste: Food residues generated in household kitchens and the catering industry, which can be converted into organic fertilizers after anaerobic digestion or composting treatment.

Garden waste: Cut lawns, fallen leaves, etc., can also be converted into organic fertilizers after appropriate treatment.

Special raw materials

Seaweed and marine debris: rich in minerals and other trace elements, suitable for organic fertilizer production in coastal areas.

Earthworm castings: Organic waste digested by earthworms, rich in microorganisms and nutrients, is a very high-quality organic fertilizer raw material.

The roller extrusion granulator can compress various raw materials mentioned above into sturdy particles through strong extrusion force, which is not only convenient for storage and transportation, but also helps to slowly release nutrients, suitable for various types of crops. However, it is worth noting that before using any raw materials, necessary pretreatment such as drying, crushing, and impurity removal is required to ensure the quality and safety of the final product. In addition, reasonable raw material matching and formula adjustment are also very important to meet the special needs of different soil conditions and crop types.

The difference in process between flat die extrusion granulator and disc granulator

fertilizer granulator Sep 27, 2024

Flat die extrusion granulator and flat disc granulator (usually referred to as disc granulator) play important roles in the production process of organic fertilizers, but there are significant differences in their working principles, scope of application, and product characteristics. The following is a specific comparison of the processes of two types of granulators:

working principle

Flat die extrusion granulator

Principle: The flat die extrusion granulator uses two sets of parallel arranged ring dies and pressure wheels to interact with each other, forcing the pre treated material into the die hole and extruding it under high pressure to form a continuous columnar material. When the columnar material leaves the mold hole, it will naturally fracture into particles of the required length due to the release of internal and external stress.

Characteristics: This type of machine is suitable for a variety of materials, especially for materials with certain hardness and adhesion, the effect is better. The high pressure during the granulation process helps to increase the density of particles, making them stronger and less prone to fragmentation.

Disc Pelletizer

Principle: The working basis of the disc granulator is to use the centrifugal force of the rotating disc to promote the rolling and aggregation of materials entering the disc in a moist state, gradually forming spherical particles. Under the frictional force on the inner wall of the disc, the material rolls along the inclined surface, and as the disc rotates, the particles continue to grow until they reach the desired size.

Characteristics: The particles prepared by the disc granulator are mostly approximately spherical, with a beautiful appearance and good flowability. It is more suitable for processing materials with certain viscosity and has certain requirements for the initial moisture content of the materials. Excessive or insufficient moisture content can affect the granulation effect.

Scope of application and product characteristics

Flat die extrusion granulator

Applicable materials: Suitable for most types of dry powder materials, including but not limited to organic fertilizers, biomass fuels, chemical raw materials, etc.

Product features: High granulation strength, regular particle shape, controllable size, suitable for long-distance transportation and mechanized application.

Disc Pelletizer

Applicable materials: mainly used for processing materials with certain humidity and bonding ability, such as animal manure, sludge, urban garbage and other organic waste.

Product features: The granulation process is mild and will not damage the active ingredients in the material. The produced particles have good solubility and are suitable for soil improvement and crop fertilization.

conclusion

The flat die extrusion granulator and the flat plate granulator each have their own advantages, and the choice depends on specific production needs, material properties, and expected particle characteristics. Flat die extrusion granulator is more commonly used in industrial production due to its high particle strength and wide adaptability; The disc granulator, with its unique granulation principle and product aesthetics, has become the preferred choice for many enterprises that focus on organic fertilizer production and pay attention to the appearance quality of granules. In practical applications, the most appropriate decision should be made based on one’s own production conditions and product positioning.

How to maintain the fertilizer granulator on the NPK fertilizer production line after granulation

fertilizer granulator Sep 27, 2024

The granulator in the NPK fertilizer production line is one of the core equipment, and its normal operation directly affects the production efficiency and product quality of the entire line. Proper maintenance can not only extend the service life of the granulator, but also reduce the failure rate, ensuring the safety and smooth operation of the production process. Here are some key steps for maintaining the NPK fertilizer production line granulator:

Daily cleaning and inspection

Daily cleaning: After production, the inside and outside of the fertilizer granulator should be thoroughly cleaned, especially the granulation chamber, molds, rollers, and other parts, to prevent residual materials from hardening or corroding the equipment.

Tightening inspection: Regularly check all connecting bolts and screws to ensure there is no looseness, and re tighten them if necessary.

Lubrication and maintenance: According to the requirements of the equipment manual, regularly add lubricating oil or grease to the moving parts to reduce wear and maintain mechanical performance.

Regular maintenance

Filter and mesh cleaning: For fertilizer granulators with filtration systems, regularly clean or replace the filter to prevent clogging and ensure smooth airflow.

Electrical component testing: Check the electrical wiring and control panel to ensure that the circuit is not exposed or damaged, and that the contactor and relay actions are sensitive and reliable.

Bearing inspection: Check for overheating or abnormal vibration of the bearings, and if necessary, replace severely worn bearings in a timely manner.

Maintenance of transmission components: Transmission components such as gears and chains should be regularly inspected for wear, and tension should be adjusted in a timely manner. If necessary, new parts should be replaced.

performance testing

Trial operation inspection: Arrange at least one no-load trial operation per month to observe whether each component is running smoothly, whether the sound is normal, and promptly discover potential problems.

Calibration sensors: For granulators equipped with pressure, temperature, humidity, and other sensors, regular calibration should be performed to ensure accurate readings.

Fault prevention and emergency preparedness

Establish an early warning mechanism: monitor the trend of changes in operational data of key components, and immediately investigate the cause of any abnormalities to prevent small problems from escalating into major failures.

Spare parts reserve: Reserve commonly used vulnerable parts, such as blades, molds, motors, reducers, etc., for quick replacement and to shorten downtime caused by malfunctions.

Employee training and standardized operation

Professional training: Regularly organize employees to participate in equipment operation and maintenance training, strengthen safety awareness, and standardize operating procedures.

Develop a manual: Prepare detailed equipment operation guidelines and emergency plans, clarify daily maintenance procedures and emergency response measures, and ensure that every operator can proficiently master them.

Record and Report

Maintenance log: After each maintenance is completed, detailed records of maintenance content, time, responsible person, and results are kept for easy tracking of equipment historical maintenance information.

Performance report: Regularly organize equipment performance reports, compare production data before and after maintenance, evaluate the effectiveness of maintenance work, and continuously optimize maintenance strategies.

In summary, the effective maintenance of NPK fertilizer production line granulators is a systematic project that involves multiple levels and details. Only by establishing a comprehensive maintenance system and implementing scientific and meticulous maintenance procedures can we maximize equipment efficiency and ensure the efficient and stable operation of the production line.

The difference between fertilizers processed using organic fertilizer granulators and chemical fertilizers

fertilizer granulator Sep 27, 2024

Fertilizers processed using organic fertilizer granulators (usually referring to organic fertilizers) and traditional chemical fertilizers (referred to as chemical fertilizers), although designed to supplement soil nutrients and promote crop growth, have multiple differences between them. These differences cover aspects such as source, composition, mechanism of action, environmental impact, and long-term effects:

Source and Composition

Chemical fertilizers:

Source: Mainly derived from industrial synthesis, prepared through chemical reactions.

Composition: Usually rich in one or several major nutrients such as nitrogen (N), phosphorus (P), and potassium (K). Common types include urea, potassium dihydrogen phosphate, potassium sulfate, etc.

Organic fertilizers:

Source: Organic substances derived from nature, such as animal manure, plant residues, kitchen waste, compost, etc.

Composition: In addition to N, P, and K, it also includes a large amount of organic matter, trace elements, and beneficial microorganisms, making its composition quite complex.

Nutrient release mode

Chemical fertilizers:

Rapid release: Nutrients in fertilizers are mainly inorganic and can quickly dissolve in water for immediate absorption and utilization by crops, but they can easily cause nutrient excess or loss.

Organic fertilizers:

Slow release: Nutrients in organic fertilizers are mostly encapsulated in organic compounds and need to be decomposed by microorganisms to gradually transform into forms that can be absorbed by crops. This process is slow but can last for a long time, helping to maintain the balance of soil nutrients.

Soil impact

Chemical fertilizers:

May damage soil structure, long-term extensive use can lead to soil compaction, pH imbalance, affect microbial activity, and be detrimental to soil health.

Organic fertilizers:

Promote the formation of soil aggregate structure, increase soil permeability and water retention capacity, improve soil physical properties, enrich soil biodiversity, and enhance soil self-healing and nutrient cycling capabilities.

Ecological and environmental impacts

Chemical fertilizers:

Excessive use can lead to eutrophication of water bodies, causing algal blooms and affecting water quality; It will also lead to greenhouse gas emissions such as nitrogen oxides and methane, exacerbating global warming.

Organic fertilizers:

Helps with carbon sequestration and mitigates climate change; Reduce the risk of chemical substances entering water bodies and protect water resources; And the recycling of organic waste reduces the negative impact of waste on the environment.

Long term effects

Chemical fertilizers:

Short term results are quick, but without the support of reasonable management and crop rotation systems, it may damage the long-term fertility and ecological functions of the land.

Organic fertilizers:

It can gradually accumulate soil organic matter and improve soil fertility. Although it may not be as effective as chemical fertilizers in the short term, in the long run, it contributes more to maintaining soil health and promoting sustainable agricultural development.

In summary, although fertilizers play an important role in agricultural production due to their immediate and efficient supply, organic fertilizers processed by organic fertilizer granulators have shown unparalleled advantages in improving soil structure, promoting ecological balance, and achieving environmentally friendly agriculture. The combination of the two, complementing each other’s strengths and weaknesses, is a widely advocated practice in current agricultural practices, aiming to pursue a harmonious coexistence between high yield, high quality, and ecological protection.

What are the commonly used organic fertilizer granulators in small-scale organic fertilizer production lines

fertilizer granulator Sep 27, 2024

In small-scale organic fertilizer production lines, the organic fertilizer granulator is an important equipment for turning fermented organic materials into regular shaped particles. It not only improves the appearance attractiveness of organic fertilizers, but also facilitates packaging, transportation, and application. According to different working principles and technical characteristics, there are several types of organic fertilizer granulators on the market, which are very suitable for small production lines. Here are several commonly used models:

1. Disc granulator

Principle: The material is fed into a tilted rotating disk, and by the action of centrifugal force, the material is agglomerated and then rolled into spherical particles.

Advantages: Simple structure and easy maintenance; High granulation efficiency, suitable for mass production.

Applicable scenarios: Suitable for materials with strong viscosity, such as organic fertilizers that have been appropriately humidified.

2. Roller extrusion granulator

Principle: The material is compressed into pieces by two relatively rotating rollers, and then crushed into the desired particle size.

Advantages: High granulation strength, wear resistance, suitable for granulation of hard materials.

Applicable scenarios: Suitable for processing materials with certain hardness and compression resistance, such as biomass fuel particles and fertilizer particles.

3. Flat die extrusion granulator

Principle: The material is forced into the mold pores, extruded through the mold pores under high pressure, and forms particles after cooling and solidification.

Advantages: Compact structure, small footprint, easy operation, especially suitable for small production lines.

Applicable scenarios: Widely used in pellet production in various industries such as organic fertilizers, biomass fuels, and feed.

4. New type of organic fertilizer specialized granulator

Principle: Combining stirring, heating, and granulation, the material is softened and shaped by the heat generated by high-speed stirring and friction.

Advantages: One time granulation, no need for drying, energy-saving and efficient.

Applicable scenarios: Designed specifically for organic fertilizers, especially suitable for handling high moisture materials, reducing energy consumption during subsequent drying.

Choose Suggestions

When selecting an organic fertilizer granulator for a small-scale organic fertilizer production line, comprehensive consideration should be given to factors such as the characteristics of the raw materials, production scale, budget, and demand for particle morphology. Usually, disc granulators are a common choice for small-scale organic fertilizer production lines due to their simple operation and low cost. But for manufacturers who hope to further enhance product added value, pursue particle strength and aesthetics, they may prefer to use flat die extrusion granulators or new organic fertilizer specific granulators. Regardless of the type, it should be ensured that the equipment has good durability and stability to serve production operations efficiently in the long term.