Sulfur-Coated Urea: Precision Release Fertilizer

fertilizer granulator Nov 17, 2025

In modern agriculture, sulfur-coated urea is gaining increasing popularity among global growers as an efficient coated slow-release fertilizer. This innovative fertilizer achieves precise nutrient release through special coating technology, effectively improving fertilizer utilization efficiency and reducing environmental pollution.

Precision Production Process

The production of sulfur-coated urea begins with strictly selected raw materials. The core material is granular urea with diameters of 1.00-5.60 mm, requiring a particle size qualification rate of over 90%. High-purity sulfur (≥99.8%) serves as the main coating material, combined with sealants and conditioners to form a complete coating system.

The production process starts by preheating urea particles to 63°C, then transferring them into a sulfur-coating drum at 77°C. In this crucial step, sulfur is heated to around 140°C to melt, then atomized and evenly sprayed onto the rolling urea particles under 7 MPa pressure. This process requires precise control of temperature and time to ensure the formation of a uniform sulfur coating approximately 50 microns thick.

Sophisticated Multi-layer Coating Design

The pure sulfur coating contains micropores that could lead to rapid nitrogen release. Therefore, the production process includes a sealant coating procedure. Using a mixture of polyethylene and heavy oil as sealant effectively closes the pores in the sulfur coating, preventing explosive nitrogen release. Subsequent cooling reduces particle temperature below 40°C, creating conditions for further processing.

Finally, diatomaceous earth and other conditioners are used for outer layer coating. This design not only improves particle flowability but also prevents particles from floating on water surfaces, ensuring the fertilizer sinks properly into the soil to function effectively.

Significant Agronomic Advantages

The slow-release characteristics of sulfur-coated urea make it outstanding in agricultural production. Typical sulfur-coated urea products contain 35% nitrogen and 18% sulfur, providing not only the main nutrient elements required by crops but also supplementing important secondary elements. Its unique release profile shows: 35% nitrogen release on the first day, with cumulative release reaching 55% within seven days. This gradual release pattern better matches crops’ nutrient absorption patterns.

In practical applications, sulfur-coated urea significantly reduces fertilization frequency and labor costs. Meanwhile, by improving nutrient utilization efficiency, it reduces nitrogen leaching and greenhouse gas emissions, making it more environmentally friendly. Taking a factory with an annual production capacity of 50,000 tons as an example, it can process 150 tons of urea raw materials daily, producing approximately 130 tons of high-quality sulfur-coated urea, fully demonstrating the scale benefits of industrial production.

With the deepening of precision agriculture and sustainable development concepts, intelligent fertilizers like sulfur-coated urea will play an increasingly important role in global food security and environmental protection. Its precise manufacturing process and excellent agronomic performance provide strong support for the green development of modern agriculture.

Advanced Coating Technology: The Future of Precision Fertilization

Sulfur-coated urea represents a significant advancement in controlled-release fertilizer technology, showcasing how specialized coating processes can revolutionize nutrient management. While sulfur-coating requires unique production setups, the broader fertilizer industry continues to innovate across various fertilizer granulation processes. Modern npk fertilizer production line facilities often incorporate multiple technologies, from traditional disc granulator machine systems to advanced double roller press granulator equipment, each suited for different product formulations. The disc granulation production line remains particularly effective for creating uniform, spherical granules, while specialized fertilizer granulator designs continue to evolve for specific applications.

This technological diversity extends across fertilizer types, with parallel innovations in organic fertilizer production line systems and bio organic fertilizer production line operations. The integration of equipment like the windrow machine for composting and sophisticated npk blending machine for precise nutrient formulation demonstrates the industry’s commitment to customized solutions. As global agriculture increasingly demands both efficiency and environmental responsibility, the continued refinement of these production technologies—from specialized coating systems to comprehensive npk fertilizer line operations—will be crucial in meeting the world’s growing food production needs while minimizing environmental impact.

Organic fertilizer granulators: Injecting green power into agriculture

fertilizer granulator Nov 17, 2025

In the wave of modern agriculture, organic fertilizer production is gradually moving away from extensive to intensive and efficient methods. Organic fertilizer granulators play an indispensable role, acting as the “heart” of the production line, transforming powdered organic raw materials into uniform and regular granules, greatly facilitating subsequent storage, transportation, and application.

A complete organic fertilizer production line is a systematic engineering project involving the coordinated operation of multiple pieces of equipment. From fermentation and turning, crushing and screening, to mixing and batching, granulation, drying and cooling, and final packaging, each step is closely interconnected. The granulation stage is often the key step determining the shape and quality of the finished product.

Among the many types of organic fertilizer production equipment, the organic fertilizer disc granulator is highly favored due to its unique working method. Its advantages lie in its high pelleting rate, uniform particle size, and ease of adjustment. These granules not only have a uniform appearance, but more importantly, they effectively reduce dust pollution and nutrient loss during fertilizer transportation. For growers, granular fertilizer is easier to apply mechanically, greatly improving the efficiency and precision of fertilization operations.

From a broader perspective, the maturity and widespread adoption of organic fertilizer disc granulators and other organic fertilizer production equipment have powerfully promoted the resource utilization of agricultural waste. It transforms livestock manure and straw into valuable resources, converting them into high-quality soil conditioners that benefit farmland, thus creating a sustainable green cycle.

Oil Palm Empty Fruit Bunch (OPEFB) as Organic Fertilizer

fertilizer granulator Nov 17, 2025

Raw Material Characteristics and Advantages

Oil Palm Empty Fruit Bunch (OPEFB) is the main by-product generated during palm oil processing, with approximately 1.1-1.3 tons of empty fruit bunches produced for every ton of palm oil. This agricultural waste possesses unique physical and chemical characteristics that make it an excellent raw material for organic fertilizer. OPEFB is rich in cellulose (approximately 45%), hemicellulose (about 25%), and lignin (around 20%), while also containing abundant mineral elements such as potassium (K), calcium (Ca), magnesium (Mg), as well as essential plant nutrients like nitrogen (N) and phosphorus (P).

Nutritional analysis shows that fresh empty fruit bunches typically contain about 60-65% moisture, with dry matter containing approximately 0.5-0.8% nitrogen, 0.1-0.2% phosphorus, 2.0-3.5% potassium, and rich organic matter content (about 85-90%). These characteristics make it an ideal base material for organic fertilizer production.

Processing Technology

Transforming empty fruit bunches into high-quality organic fertilizer requires systematic processing. First, pretreatment involves shredding using specialized crushers to reduce the material to 2-5 cm particles, increasing surface area to facilitate subsequent fermentation. This is followed by the composting fermentation stage, using windrow or trough fermentation systems, with carbon to nitrogen ratio controlled at the optimal range of 25-30:1, typically requiring the addition of nitrogen sources such as chicken manure or chemical nitrogen fertilizers for adjustment.

Temperature control is crucial during the fermentation process. The high-temperature phase (55-65°C) needs to be maintained for 10-15 days to eliminate pathogens and weed seeds, followed by the medium-temperature phase (45-55°C) for further maturation. The entire fermentation cycle typically requires 45-60 days, with regular turning necessary to ensure proper aeration and oxygen supply. Modern processing plants often employ microbial inoculation technology, adding specific decomposing agents to accelerate lignocellulose degradation, reducing the fermentation period to 30-40 days.

Product Characteristics and Application Effects

Fully matured OPEFB organic fertilizer appears dark brown with the characteristic odor of fertile soil, with stable pH values between 6.5-7.5. Its organic matter content can reach 40-50%, total nutrient content (N+P₂O₅+K₂O) is approximately 3-5%, while also containing abundant trace elements and beneficial microorganisms. This organic fertilizer demonstrates significant effects in improving soil physical structure, enhancing soil porosity, increasing water and nutrient retention capacity, and promoting the formation of soil aggregates.

Field experiments show that applying OPEFB organic fertilizer in oil palm plantations can increase fresh fruit bunch yield by 15-25%, while significantly improving soil fertility indicators. After application, soil organic matter content can increase by 0.5-1.0 percentage points, soil microbial population increases by 2-3 times, effectively alleviating soil acidification and compaction problems caused by long-term exclusive use of chemical fertilizers.

Environmental Benefits and Economic Value

The development and utilization of OPEFB organic fertilizer offers significant environmental benefits. For every ton of empty fruit bunches used to produce organic fertilizer, approximately 0.8 tons of CO₂ equivalent greenhouse gas emissions can be reduced, avoiding air pollution caused by open burning, while also reducing chemical fertilizer usage by 20-30%. From an economic perspective, the investment payback period for establishing an OPEFB organic fertilizer processing plant is typically 3-5 years, demonstrating good economic returns.

Furthermore, OPEFB organic fertilizer production creates new employment opportunities locally, forming a complete industrial chain from raw material collection, processing, to product sales and application. This recycling model aligns with sustainable development principles, transforming the oil palm industry from a linear “resource-product-waste” model to a circular “resource-product-renewable resource” model.

Application Prospects and Development Directions

With the growing global demand for sustainable agriculture and organic food, the market prospects for OPEFB organic fertilizer are promising. Future development directions include developing specialized compound organic fertilizer formulations optimized for different crop nutritional requirements; researching rapid fermentation technologies to further shorten production cycles; and exploring co-fermentation with other agricultural wastes to improve resource utilization efficiency.

Simultaneously, it is necessary to establish complete quality standard systems and market promotion mechanisms to ensure stable product quality and improve farmers’ awareness and acceptance of OPEFB organic fertilizer. Through technological innovation and policy support, OPEFB organic fertilizer is expected to become an important organic fertilizer source in tropical regions, making significant contributions to sustainable agricultural development.

Sustainable Innovation: The Future of OPEFB Fertilizer Production

The transformation of Oil Palm Empty Fruit Bunches into high-quality organic fertilizer represents a perfect synergy between waste management and sustainable agriculture. Modern organic fertilizer production line systems leverage advanced equipment like the large wheel compost turner and chain compost turner to optimize the organic fertilizer fermentation process, ensuring efficient decomposition of lignocellulosic materials. Following fermentation, specialized granulation equipment such as the double roller press granulator or rotary drum granulator transforms the composted material into uniform, easy-to-handle fertilizer granules through precise drum granulation processes.

For facilities seeking product diversification, the same infrastructure can support both traditional organic fertilizer and bio organic fertilizer production line operations, while separate npk fertilizer production line systems can be integrated for comprehensive product offerings. The npk fertilizer manufacturing process typically employs different fertilizer granulator technologies, but shares the same commitment to quality and efficiency. As the wheel compost turner and other turning machines continue to evolve, they enable larger-scale, more cost-effective processing of OPEFB materials. This integrated approach to organic fertilizer production not only addresses waste management challenges in the palm oil industry but also creates valuable soil amendments that support sustainable agricultural practices worldwide, closing the nutrient loop in one of the world’s most important tropical crops.

Large Wheel-type Compost Turner: Core Equipment in Modern Fertilizer Production Lines

fertilizer granulator Nov 17, 2025

In the field of modern fertilizer production, large wheel-type compost turners have become essential equipment for organic fertilizer production lines with an annual capacity exceeding 100,000 tons. Through their unique design and working principles, these efficient machines play an irreplaceable role in the fermentation process of fertilizer production, providing reliable support for large-scale continuous manufacturing.

Production Line Integration and Process Optimization

The large wheel-type compost turner serves as a crucial link between preliminary processing and subsequent deep processing stages in fertilizer production lines. It seamlessly connects raw material pretreatment with later processing stages, forming a complete production cycle. Pretreated materials are transported to the fermentation area through conveyor systems, where they undergo efficient fermentation under the action of the turner. The matured materials are then conveyed to subsequent processes such as crushing and granulation. This integrated design ensures the continuity and stability of the production process.

Achieving Large-scale Continuous Production

To meet large-scale production demands, large wheel-type compost turners employ a multi-windrow cyclic operation mode. Through scientific planning of fermentation areas, the equipment can operate systematically among windrows at different fermentation stages, enabling simultaneous processing of material reception, high-temperature fermentation, and cooling maturation. This operational mode allows for daily processing capacity ranging from 800 to 1,500 tons, fully meeting the requirements for continuity and scale in modern fertilizer production lines.

Intelligent Production Coordination

Modern large wheel-type compost turners are equipped with advanced electronic control systems that can intelligently adjust working parameters based on the overall operation status of the production line. The equipment can respond in real-time to changes in front-end raw material supply and back-end processing equipment capacity, optimizing fermentation progress by adjusting turning speed and travel speed. This intelligent coordination capability effectively prevents material accumulation or supply shortages during the production process.

Enhanced Space Utilization Efficiency

Compared to traditional trough fermentation methods, the windrow fermentation approach used by large wheel-type compost turners significantly improves site utilization efficiency. Practice has proven that this fermentation model can increase site utilization efficiency by over 30%, saving valuable land resources for production enterprises. This is particularly suitable for establishing large production bases in areas with relatively abundant land resources but high transportation costs.

Equipment Selection and Technical Parameters

To accommodate different production scales, large wheel-type compost turners offer various models. The core technical parameters are mainly reflected in the main motor power configuration, with power ranges from 55 kilowatts to 110 kilowatts, suitable for production lines with annual capacities from 100,000 tons to over 300,000 tons respectively. In addition to the main motor power, the equipment’s travel motors and hydraulic systems are also carefully designed to ensure stable operation under various working conditions.

When selecting equipment models, production enterprises need to comprehensively consider factors such as raw material characteristics, production scale, and site conditions. Appropriate equipment selection not only ensures production efficiency but also effectively reduces operational costs, maximizing economic benefits.

Global Application Prospects

With the growing global demand for sustainable agriculture and organic fertilizers, large wheel-type compost turners have broad application prospects. This equipment is not only suitable for traditional fertilizer production enterprises but also provides effective technical solutions for the resource utilization of agricultural waste. By converting various organic wastes into high-quality organic fertilizers, large wheel-type compost turners are playing an increasingly important role in promoting circular economy development and environmental protection.

Integrated Production Systems: The Future of Fertilizer Manufacturing

The large wheel compost turner represents a critical component in modern organic fertilizer production line systems, working synergistically with other essential equipment to create comprehensive manufacturing solutions. Following the efficient organic fertilizer fermentation process facilitated by these turning machines, the material progresses through various fertilizer making machine units including disc granulator systems for particle formation and drum organic fertilizer dryer for moisture control. This integrated approach to fermentation composting technology for organic fertilizer ensures that large-scale production facilities can maintain consistent output while meeting quality standards.

For operations requiring diversified product portfolios, the same facility can incorporate both bio organic fertilizer production line and npk fertilizer production line capabilities. While the npk fertilizer manufacturing process typically employs different granulation technologies such as rotary drum granulator or double roller press granulator systems, the fundamental principles of efficient material handling remain consistent. The evolution of compost fertilizer machine technology, including both large wheel compost turning machine and chain compost turner options, provides manufacturers with flexible solutions to meet specific production requirements. As global demand for sustainable agriculture grows, these integrated production systems will continue to play a vital role in supporting both organic and conventional farming practices through efficient, large-scale fertilizer manufacturing.

20/20/20 Fertilizer Production Technology

fertilizer granulator Nov 17, 2025

Introduction to Balanced Fertilizer

The 20/20/20 fertilizer formula represents a perfectly balanced water-soluble compound fertilizer containing equal proportions of nitrogen (N), phosphorus (P₂O₅), and potassium (K₂O). This balanced nutrient ratio makes it suitable for most plants throughout their entire growth cycle, particularly effective during seedling and growth stages where comprehensive nutrition is required.

Production Process Overview

The manufacturing of 20/20/20 fertilizer involves sophisticated equipment and precise process control. The production begins with raw material preparation, where crushers and screening machines process urea, ammonium phosphate, and potassium chloride into fine powders. Automatic batching systems then accurately measure the ingredients with an error margin within ±0.5%, ensuring the precise 20:20:20 ratio.

Key Production Equipment

The core equipment includes high-efficiency mixers that blend multiple raw materials thoroughly, and granulation machines that form uniform particles. The rotary drum granulator serves as the central equipment for large-scale production, creating strong, consistent granules through its rotating drum mechanism. For smaller operations, disc granulators offer compact solutions with excellent particle roundness.

Post-processing equipment includes rotary dryers that maintain temperatures below 80°C to prevent nutrient decomposition, cooling systems that bring particles to ambient temperature, and screening machines that separate qualified products. Coating machines apply anti-caking coatings to enhance storage stability, while automatic packaging systems complete the production line with precision weighing and sealing capabilities.

Technical Requirements and Quality Control

Successful production requires high-purity soluble raw materials with strict quality specifications. Process parameters must be carefully controlled: raw material humidity below 50%, mixing time exceeding 5 minutes, and granulation parameters adjusted to achieve 2-4mm particle size with over 90% pelletization rate. Final product moisture must be controlled below 2% to ensure quality and prevent caking.

Automation and Environmental Protection

Modern production facilities employ PLC or DCS systems for complete automation, reducing human intervention while improving efficiency and consistency. Environmental protection measures include bag dust collectors and spray towers that effectively capture dust and odors, ensuring compliance with environmental regulations.

Conclusion

The production of 20/20/20 fertilizer represents a sophisticated integration of mechanical engineering, process control, and quality management. Through precise equipment selection and strict process parameter control, manufacturers can produce high-quality balanced fertilizers that meet global agricultural needs while maintaining environmental responsibility.

Advanced Manufacturing: The Future of Balanced Fertilizer Production

The sophisticated npk fertilizer manufacturing process for 20/20/20 fertilizer demonstrates how modern technology ensures precise nutrient delivery. The heart of this operation lies in the npk fertilizer production line, where specialized equipment like the disc granulator machine and fertilizer mixer machine work in harmony to create uniform, high-quality products. The npk granulation machine technology has evolved significantly, with equipment such as the disc granulator providing excellent particle formation while maintaining the critical 20:20:20 ratio throughout the manufacturing of npk fertilizer.

While this discussion has focused on chemical fertilizers, it’s worth noting that similar engineering principles apply to organic alternatives using fermentation composting technology for organic fertilizer. The complete npk fertilizer production process integrates multiple stages – from initial mixing in the npk blending machine to final granulation in the npk fertilizer granulator. For operations requiring flexibility, the bulk blending fertilizer machine offers efficient solutions for customized formulations. Through continuous innovation in fertilizer granulation and process control, the npk production process continues to advance, providing farmers with reliable, balanced nutrition solutions that support sustainable agricultural practices worldwide.

Compost Making Equipment for Large Capacity Fermentation Process Equipment

fertilizer granulator Nov 17, 2025

Core Advantages of Granular Fertilizers

Granular fertilizers, as a widely used form in modern agriculture, offer significant advantages. Their unique physical structure effectively controls nutrient release rate, providing continuous and stable nutritional supply for crops. Compared to powdered fertilizers, granular fertilizers are less likely to disperse during application, allowing precise dosage control and reducing waste.

The production process of granular fertilizers ensures even distribution of nutrients within each granule. This characteristic effectively prevents seedling burn caused by localized high concentrations. Meanwhile, granular fertilizers are suitable for various crops and planting patterns, particularly for crops with longer growth periods, significantly reducing fertilization frequency and labor costs.

Detailed Granular Fertilizer Liquefaction Method

Converting granular fertilizers into liquid form combines the dual advantages of solid and liquid fertilizers. This process is simple and easy to perform, requiring only a few basic steps.

Material Preparation

Prepare granular fertilizer, clean water, plastic or ceramic containers, stirring tools, and filtering materials like gauze or filter mesh. Avoid using metal containers to prevent chemical reactions that may affect fertilizer efficacy.

Ratio Control

Recommended mixing ratio is 1:50 to 1:100 by weight of fertilizer to water. Specific concentration should be adjusted according to crop type and growth stage, using weaker concentration (1:100) for seedling stage and relatively stronger concentration (1:50) for mature plants.

Dissolution Process

After adding granular fertilizer to water, stir thoroughly and let it sit for 2-4 hours. During this period, stir every 30 minutes to ensure complete dissolution. Patient waiting helps improve nutrient dissolution efficiency.

Filtration and Application

Filter the solution using gauze or filter mesh to remove undissolved impurities. The filtered fertilizer solution should be used within 24 hours and can be applied through root irrigation or foliar spraying.

Important Precautions

Temperature Control: Always use room temperature water to dissolve fertilizers, avoiding hot or boiling water. High temperatures can damage nutrients in the fertilizer, particularly causing nitrogen volatilization.

Fertilizer Compatibility: Do not mix alkaline fertilizers with acidic fertilizers during liquefaction, as this will cause chemical reactions that render nutrients ineffective. When uncertain about fertilizer properties, it’s recommended to dissolve and use them separately.

Concentration Management: When using liquefied fertilizer for the first time, conduct small-scale tests initially, then expand application after observing crop response. Excessive concentration may harm crops.

Usage Recommendations

Liquefied fertilizers are more suitable for use during critical crop nutrient demand periods, such as rapid growth stages or fruiting periods. After application, appropriate watering can help crops better absorb nutrients. For different crop types, refer to professional fertilization guidelines to develop the most suitable liquefied fertilizer usage plan.

Through proper liquefaction methods and usage techniques, granular fertilizers can achieve greater effectiveness, providing more precise nutritional support for crop growth. This flexible usage approach is particularly suitable for the needs of precision agricultural management.

Optimizing Fertilizer Production for Modern Agriculture

The liquefaction method demonstrates the remarkable versatility of granular fertilizers, but their fundamental advantages begin at the production stage. The efficiency of the npk manufacturing process is paramount, where the choice of granulation technology directly impacts fertilizer quality. Modern npk fertilizer production lines often employ either a rotary drum granulator for a steam-polished, spherical granule or utilize fertilizer compaction via a roller press granulator production line for high-density products. Both drum granulation and fertilizer compaction techniques are designed to create robust granules with even nutrient distribution, a key feature highlighted in their agricultural performance.

This production synergy extends to organic alternatives. The organic fertilizer fermentation process, accelerated by equipment like a chain compost turning machine or a windrow composting machine, transforms raw organic matter into stable compost. This material is then efficiently shaped using specialized equipment such as a new type two in one organic fertilizer granulator, which integrates mixing and granulating functions. Subsequent fertilizer production machine operations, including sizing with a rotary screener, ensure a consistent final product. Ultimately, advanced fertilizer production technology, from the initial npk fertilizer production process to sophisticated fermentation composting technology for organic fertilizer, provides the foundation for the granular fertilizers that offer such significant flexibility and efficacy to farmers worldwide.

A new vision in granulation: The silent revolution of double roller press technology

fertilizer granulator Nov 15, 2025

On the stage of organic fertilizer production, the double roller press granulator is showcasing its unique value in a low-key yet highly efficient manner.

Walking through the fermentation zone, you’ll see a windrow compost turning machine working methodically. It continuously turns and aerates the mixture, preparing fully decomposed raw materials for subsequent processes. These materials are then transported to the next stage.

Here, the double roller press granulator begins its performance. Without high-temperature heating or the addition of binders, it directly compresses powdery materials into uniform granules through two precisely matched rollers. The entire process is clean and efficient, with a satisfactory granule formation rate and uniform particle size for easy packaging and application.

This granulation method represents the development direction of new type organic fertilizer granulators, pursuing lower energy consumption, a simplified process, and more stable quality. Under the extrusion of the rollers, strong molecular bonding forces are generated between the raw material particles, forming robust granules that ensure the product is not easily broken during transportation and storage.

Modern bio-organic fertilizer equipment emphasizes the continuity and automation of the production process, and the double roller press granulator perfectly embodies this concept. Its simple structural design, convenient operation, and seamless integration with upstream and downstream processes provide a reliable guarantee for the production of high-quality bio-organic fertilizer.

From the fermentation preparation by the windrow compost turning machine to the precise molding by the double roller press, and then to the subsequent finishing processes, these devices together constitute the complete picture of modern organic fertilizer production.

Rotary drum granulator: The art and efficiency of fertilizer granulation

fertilizer granulator Nov 15, 2025

In modern fertilizer production, the rotary drum granulator plays an indispensable role. Unassuming yet highly efficient, it transforms powdery raw materials into uniform granules, greatly facilitating fertilizer application and transportation.

In a complete organic fertilizer production line, the rotary drum granulator is often a core component. It is frequently connected to a fertilizer mixer machine. This equipment is responsible for thoroughly and uniformly mixing various raw materials, whether basic elements like nitrogen, phosphorus, and potassium, or materials rich in organic matter.

Once the uniformly mixed material enters the rotary drum granulator, the real transformation begins. As the drum slowly rotates, the fine powder particles, under suitable humidity and motion, adhere, encapsulate, and gradually grow like snowballs, ultimately forming uniformly sized granules.

The synergistic effect of this equipment is even more pronounced in the production of bio-organic fertilizers. Bio-organic fertilizer equipment is typically a system, not solely reliant on a single machine. From the fermentation and crushing of materials, to the mixing by the fertilizer mixer, and finally to the forming by the rotary drum granulator, each step is closely linked. The value of the rotary drum granulator in this process lies in its ability to effectively process organic materials, forming granules of moderate strength that are conducive to slow release into the soil.

How to adapt a BB fertilizer blender to different raw material characteristics?

fertilizer granulator Nov 15, 2025

BB fertilizer raw materials come in a variety of forms (granular, powdered, and fiber-containing). BB fertilizer blenders require targeted adjustments to accommodate these different raw material characteristics and avoid mixing problems.

For pure granular raw materials (such as urea and diammonium phosphate granules), which have relatively small density differences but are prone to rolling and stratification, the BB fertilizer blender should be equipped with guide plates within the mixer drum to guide the raw materials into upward and downward circulation and control the feed order. Adding the denser diammonium phosphate first, followed by the lighter urea, can reduce initial stratification. The speed can be appropriately reduced in the later stages of mixing to prevent excessive collisions between particles that could lead to breakage.

If the raw materials contain powdered ingredients (such as potassium chloride powder or trace element powder), a dustproof seal should be installed at the BB fertilizer blender feed port to prevent dust from escaping. Additionally, an atomizing humidifier (control the humidity to ≤15%) should be installed within the mixer drum. A small amount of humidification can enhance adhesion between the powdered raw materials and the granules, preventing dust from becoming suspended.

When the raw materials contain fiber organic fertilizer (such as fermented straw powder), it is necessary to use a paddle with a shearing function to prevent the fibers from entangled and clumping. At the same time, the fiber raw materials should be crushed to less than 3mm in advance to reduce mixing resistance. During the mixing process, the machine can be stopped and observed every 3 minutes. If fiber clumps are found, the paddle angle needs to be adjusted to enhance the shearing and dispersion effect to ensure that the fibers and granular fertilizer are fully integrated.

The key factor in selecting a double screws compost turning machine is accurately matching your needs

fertilizer granulator Nov 15, 2025

For fertilizer companies, choosing the right double screws compost turning machine can increase fermentation production capacity by 30% while also reducing energy consumption and labor costs.

1. Compatibility with Fermentation Tank Specifications

The operating width of the double screws compost turning machine must match the width of the fermentation tank (common widths are 3-6 meters), and the turning depth must match the tank depth. If the tank is too wide or too deep, the edge materials may not be turned properly.

2. Matching Processing Capacity with Production Capacity

Select the equipment’s processing capacity based on the daily fermentation raw material volume (a single machine can process 50-200 tons per hour). Small and medium-sized companies can choose a small machine (50-100 tons/hour). Large-scale production lines require a large double screws compost turning machine, while also allowing for 10% redundancy to account for raw material fluctuations.

3. Adaptability to Raw Material Characteristics

When processing livestock and poultry manure with high moisture content, choose equipment with spiral blades equipped with an anti-stick coating to prevent entanglement. When processing straw-like fiber materials, prefer models with a wide spiral blade spacing (15-20cm) to enhance material throwing and reduce clogging.

4. Power and Energy Considerations

Preferably choose models with variable frequency motors, which can adjust the speed based on the moisture and viscosity of the raw material. Also consider the double screws compost turning machine’s travel system. Track-type models are suitable for fixed fermentation tanks, while crawler-type models are suitable for flexible adjustments to the fermentation area.