How to Choose the Right Disc Granulator for Your Production Line

fertilizer granulator Sep 16, 2025

In fertilizer production lines, the choice of disc granulator directly impacts production capacity and product quality. Combining the technical specifications and application characteristics of Huaqiang Heavy Industry’s disc granulators, a sound selection requires focusing on four key dimensions.

First, precisely matching production needs is crucial. Equipment requirements vary significantly across industries. For the fertilizer industry, when producing organic fertilizer, rubber or polyurethane-lined models are preferred to avoid corrosion and accommodate fermentable materials like livestock and poultry manure. The recommended rotational speed is 10-18 rpm to preserve organic matter activity. For inorganic compound fertilizer production, ensuring uniform feed distribution and a consistent mixing of nitrogen, phosphorus, and potassium is crucial. Production capacity selection should be based on specific parameters. For example, a small workshop with an hourly production capacity of 0.05-0.15 tons should choose the ZL-500 model, while a large factory with a production capacity of 3.5-6 tons should opt for the ZL-3600 model. A 10%-15% capacity margin should be reserved to account for seasonal fluctuations.

Second, pay close attention to the core configuration details of the equipment. The drive system determines operational stability. For example, the ZL-3600 model, equipped with an 18.5kW motor and a 10r/min speed, can accommodate high-load granulation needs. The disc inclination angle should be adjustable from 30° to 60°, allowing for flexible adjustment based on material viscosity. For example, highly viscous mineral powders require a larger inclination angle of around 50° to reduce wall sticking. The water spray system should be equipped with multiple sets of adjustable nozzles to ensure a stable moisture content of 10%-20% to prevent loose particles and agglomeration. This is crucial for the strength of fertilizer pellets and the quality of metallurgical mineral powder pellets.

Furthermore, a comprehensive assessment of the manufacturer’s capabilities is crucial. Prefer companies like Huaqiang Heavy Industry that have comprehensive production capabilities. Their 12 disc granulator models cover varying production capacity requirements and allow customers to visit their factory for a firsthand understanding of the equipment’s production processes and quality control procedures. Also, consider whether the manufacturer offers customized services.

Finally, prioritize after-sales service and supporting support. Confirm whether the manufacturer offers free installation, commissioning, and operator training to prevent production disruptions caused by improper operation. Equipment packaging must meet transportation standards, such as packaging the main unit bare to minimize impacts and plywood boxes for electrical components. Customized wooden boxes can be used for special transportation needs. Furthermore, the inventory cycle and warranty policy for consumable parts such as nozzles and inner linings must be clearly defined to ensure long-term stable operation of the equipment and reduce future maintenance costs.

Tracked design and efficient turning! Technical advantages of the windrow compost turner

fertilizer granulator Sep 16, 2025

The windrow compost turner’s widespread use in organic fertilizer production stems from the significant advantages offered by its unique technical design. The tracked design is a key advantage. Compared to traditional wheeled equipment, it effectively reduces ground pressure, typically to just 0.05-0.1 MPa. This allows for flexible maneuverability even on muddy, soft surfaces, or complex terrain with slopes up to 15°, eliminating the need for dedicated tracks. This significantly improves site utilization, exceeding that of trough-type compost turning machines by over 30%.

The machine also excels in turning performance. Its hydraulic arm allows for flexible adjustment of turning height and width, accommodating windrows ranging from 0.5-2.5 meters in height and 2-6 meters in width. A single unit can process 50-150 tons of material per hour, achieving an efficiency 1.5-2 times that of a single-screw compost turning machine. The turning teeth and spiral blades are forged from alloy steel. Combined with a bottom-up turning mechanism, this achieves a material turning rate of over 95%, preventing localized compaction and uneven fermentation. Material temperature deviation is kept within 3°C, ensuring stable fermentation quality.

Furthermore, the equipment’s electronic control system monitors operating parameters in real time. In the event of abnormal conditions such as overload or excessive hydraulic oil temperature, it automatically issues an alarm and shuts down the machine for protection, ensuring safe and efficient operation.

Organic fertilizer production lines contribute to green agricultural development

fertilizer granulator Sep 16, 2025

With the deepening promotion of the concept of green agricultural development, demand for organic fertilizer, an environmentally friendly and efficient type of fertilizer, is growing. By reusing resources such as agricultural waste and livestock manure, organic fertilizer production lines not only reduce environmental pollution but also provide high-quality fertilizer for agricultural production, becoming a key force in promoting green agricultural development.

The core processes of an organic fertilizer production line include raw material fermentation, crushing, mixing, granulation, drying, and screening. The performance of key equipment in these processes directly determines the quality and production efficiency of organic fertilizer. Fertilizer crushers are responsible for breaking fermented raw materials into uniform granules, laying the foundation for subsequent mixing and granulation. Fertilizer mixers ensure uniform mixing of various raw materials, ensuring a balanced nutritional profile in the organic fertilizer. Fertilizer granulators transform the mixed raw materials into granular organic fertilizer that meets specific requirements for storage and application.

Fertilizer dryers and coolers also play an important role in organic fertilizer production. The dryer removes excess moisture from the granulated organic fertilizer, preventing it from clumping and deteriorating. The cooler quickly reduces the temperature of the dried organic fertilizer, facilitating subsequent screening and packaging. These devices work together to form a complete organic fertilizer production process, ensuring efficient and stable production.

The promotion and application of organic fertilizer production lines not only recycles agricultural waste and reduces the damage to the soil and environment caused by chemical fertilizer use, but also improves the quality of agricultural products and contributes to sustainable agricultural development.

Differences in Equipment Selection Between Wet and Dry Granulation in the Fertilizer Industry

fertilizer granulator Sep 15, 2025

In fertilizer production, granular fertilizers are widely used due to their advantages such as ease of application and uniform nutrient release. The differences in equipment selection between wet and dry granulation directly impact fertilizer quality and production efficiency, requiring precise matching based on fertilizer characteristics.

In the fertilizer industry, wet granulation focuses on “liquid-solid granulation,” and equipment selection is designed around nutrient dissolution and granule solidification. Key equipment is a rotary drum granulator or disc granulator. A rotary drum granulator uses a rotating, tilted drum to mix fertilizer powder with liquid raw materials such as phosphoric acid and ammonia, forming granules through the bonding force between the materials. This makes it suitable for producing nitrogen, phosphorus, and potassium compound fertilizers, ensuring uniform coating of multiple nutrients. A disc granulator uses high-speed rotation to generate centrifugal force, which forces the material and binder to form spherical granules. This makes it suitable for fertilizers such as organic fertilizers that require a fluffy structure. A drum fertilizer dryer is required to remove excess moisture from the granules using hot air, preventing fertilizer clumping and nutrient loss. This is a hallmark of wet granulation in the fertilizer industry.

Dry granulation requires no liquid addition, and the equipment used focuses on “physical extrusion shaping,” making it more suitable for heat-sensitive or water-soluble fertilizers. The core equipment is a double roller press granulator, which uses a pair of rollers to press fertilizer powder into dense flakes. This is then crushed and sieved to form granules, preventing moisture from deliquescing in fertilizers like urea and ammonium nitrate, while also minimizing nutrient volatilization. Some high-hardness raw materials require a crusher to pre-process the lumpy fertilizer into a fine powder to ensure uniform feeding. Dry granulation eliminates the need for drying equipment, streamlines the process, and preserves water-soluble nutrients, making it suitable for producing water-soluble or slow-release fertilizers.

When selecting fertilizers, wet granulation equipment is preferred for producing compound fertilizers requiring high nutrient content. Dry granulation equipment is more suitable for processing heat-sensitive, soluble fertilizers. Wet granulation equipment also consumes more energy and is suitable for large-scale production, while dry granulation equipment occupies less space and is more suitable for small- to medium-volume production of specialty fertilizers.

The Secrets of Bio-Organic Fertilizer Production Lines

fertilizer granulator Sep 15, 2025

The bio-organic fertilizer production line is the core vehicle for transforming agricultural waste into high-quality fertilizer. Its production process requires scientific proportioning and precise processing to ensure the fertilizer is both nutritious and active.

The first step in production is raw material pretreatment. Workers transport raw materials such as livestock and poultry manure, straw, and mushroom residue to the workshop, where they are sorted to remove impurities. A crusher then pulverizes the straw and other coarse fiber materials to 2-5 mm. An automatic batching system then automatically mixes the various raw materials according to the optimal carbon-nitrogen ratio of 30:1 and adds composting agents, laying the foundation for subsequent fermentation.

The second step is the high-temperature aerobic fermentation stage. The mixed raw materials are fed into a fermentation tank or vat, where the fermentation system continuously controls temperature, humidity, and oxygen content. The temperature initially rises to above 55°C to kill insect eggs and pathogens; in the middle, it is maintained at 60-70°C to promote microbial decomposition of organic matter; and in the later stages, the temperature gradually decreases to form stable humus. The entire process takes approximately 7-15 days, during which time a compost turning machine turns the fertilizer every 2-3 days to ensure even fermentation.

After fermentation is complete, the material enters the advanced processing stage. A drum screener separates the uncomposted coarse material (which returns to the fermentation stage). Qualified material is then fed into a granulator (such as a rotary drum granulator or a new type organic fertilizer granulator). Depending on market demand, it can be produced in various forms, such as granules or powders. The granular fertilizer needs to go through a drum fertilizer dryer to reduce the moisture content to below 15%, and then pass through a drum cooler to cool it to room temperature to prevent clumping.

Finally, the finished product is processed and tested. After cooling, the fertilizer is coated with a probiotic agent in a film coating machine to improve its effectiveness and stability. It is then weighed and packaged. Quality inspection departments will sample and test the fertilizer for indicators such as organic matter content and effective viable bacterial count. Only products that meet national standards are labeled and shipped to farmland, providing green energy for crop growth.

Screening in an Organic Fertilizer Production Line

fertilizer granulator Sep 15, 2025

In the entire organic fertilizer production process, the screening process acts as a sophisticated “quality filter,” directly determining the particle uniformity and impurity content of the final product. It is the core link between fermentation and finished product packaging. Neglecting meticulous control of the screening process can lead to reduced product quality due to residual impurities or uneven particle size, even with the most advanced fermentation processes, impacting market competitiveness.

Currently, mainstream organic fertilizer production lines mostly utilize a combination of “vibration screening + drum screening.” The vibrating screener machine‘s high-frequency vibrations quickly separate large impurities (such as uncomposted straw and gravel) from the material. The screen’s aperture can be flexibly adjusted to product requirements, typically selecting a 10-20 mesh size to meet common organic fertilizer standards. The drum screener machine, on the other hand, uses a slowly rotating cylindrical screen drum to perform a secondary classification of fine particles, effectively removing powdery materials and ensuring a final particle size deviation within ±2mm. The synergistic operation of these two devices can increase material screening efficiency to over 95%, significantly reducing the risk of blockage in the subsequent packaging process.

Operational control during the screening process is equally critical. Screen wear must be regularly inspected, and if mesh deformation exceeds 5%, it must be replaced promptly to avoid missed screens. Furthermore, equipment parameters must be dynamically adjusted based on the moisture content of the material. If the moisture content of the fermented material exceeds 30%, the vibration frequency or drum speed must be appropriately reduced to prevent the material from sticking to the screen and affecting screening efficiency. By establishing a management system that includes “two-hourly screen inspections and real-time moisture content monitoring,” one organic fertilizer manufacturer increased its product qualification rate from 88% to 99.2%, reducing annual reject losses by over 120 tons.

As the organic fertilizer industry’s demand for product quality increases, screening technology is evolving towards intelligent technology. Some advanced production lines have incorporated IoT monitoring systems, using sensors to collect real-time data such as screening output and impurity separation rate, enabling unmanned, precise screening. This technological innovation not only reduces labor costs but also further ensures the stability of screening accuracy, laying a solid foundation for organic fertilizer products to enter the high-end market.

Bio-organic Fertilizer: The New Answer To Fertile Soil And High Yield

fertilizer granulator Sep 15, 2025

In today’s pursuit of sustainable development, the bio-organic fertilizer production line represents a specialized evolution of the broader organic fertilizer production line category, specifically designed to maximize microbial activity and nutrient preservation. These sophisticated systems transform various agricultural wastes into high-quality bio-organic fertilizers through controlled fermentation processes.

While the organic fertilizer line focuses on recycling organic matter, the NPK fertilizer production line specializes in creating precise nutrient formulations, and the bulk blending fertilizer line offers customized nutrient combinations—together forming a comprehensive approach to soil nourishment that addresses both organic matter content and precise nutrient requirements.

This integrated approach not only addresses waste management challenges but also provides a complete spectrum of fertilization solutions for modern agriculture, from enhancing soil structure with organic matter to delivering targeted nutrition through specialized formulations.

The Marvelous Transformation Journey

The heart of bio-organic fertilizer production lies in microbial fermentation technology. These microscopic biological workers convert nutrients in organic waste into forms that plants can directly absorb, while simultaneously improving soil structure and enhancing soil fertility. The entire process resembles a meticulously orchestrated natural symphony, with the organic fertilizer production machine serving as the conductor of this performance.

Modern organic fertilizer manufacturing machines have evolved into highly automated systems that can precisely control every parameter of the fermentation process, ensuring the production of stable and highly effective bio-organic fertilizers.

The Four-Step Transformation from Waste to Treasure

Raw Material Pretreatment: The production line first collects various organic wastes and processes them into particles suitable for fermentation through a crusher. These materials are then mixed with a certain proportion of water and fermentation agents to adjust humidity and microbial activity, preparing for the fermentation process.

Efficient Fermentation Process: The pretreated materials enter fermentation equipment where they undergo high-temperature fermentation through microbial action. This process requires regular turning to provide sufficient oxygen, control fermentation temperature, and promote organic matter decomposition. Modern organic fertilizer production machines can precisely monitor key parameters such as temperature, humidity, and oxygen content, ensuring efficient fermentation.

Refining Stage: After fermentation, the materials undergo drying to remove excess moisture, improving the stability and storage capacity of the organic fertilizer. The dried organic fertilizer raw materials are then processed into granules through a granulator for easy transportation and use. A screening machine selects particles that meet size requirements and mixes them evenly with other additives to enhance the nutritional completeness and biological activity of the organic fertilizer.

Quality Assurance: Finally, an automatic packaging machine packages the finished bio-organic fertilizer into bags or boxes, followed by quality testing to ensure products meet national or industry standards. Each organic fertilizer manufacturing machine plays an indispensable role in this process.

The bio-organic fertilizer production line represents not only a technological innovation but also the perfect embodiment of circular agriculture principles. Through advanced organic fertilizer production machines, we can transform waste into valuable resources, reducing environmental pollution while enhancing soil health, providing practical solutions for sustainable agricultural development. This system demonstrates how humanity can cleverly utilize natural processes to create greener, more efficient agricultural production models.

What are the benefits of investing in an NPK fertilizer production line?

fertilizer granulator Sep 15, 2025

In agricultural production, fertilizer is a key factor in improving crop yield and quality. NPK fertilizer, a triple compound fertilizer of nitrogen (N), phosphorus (P), and potassium (K), is highly favored by farmers for its scientifically formulated nutrient profile, fully meeting crop growth needs. Investing in an NPK fertilizer production line offers many compelling advantages.

From an agricultural production perspective, NPK fertilizer production lines offer balanced and high-nutrient content. Nitrogen contributes to robust leaf growth and is a core component of protein and chlorophyll. Phosphorus is crucial for root development, flower and fruit formation, and energy conversion. Potassium plays a key role in plant life processes such as water regulation, disease defense, and photosynthesis. These multiple elements work together to provide comprehensive support for crop growth, effectively improving crop yield and quality. Furthermore, the dense particle structure, even nutrient distribution, and stable and sustained nutrient release reduce byproducts and minimize negative impacts on the soil. Furthermore, the fertilizer particles are uniform, each rich in multiple elements, allowing for more even distribution during application, enabling a single application and significantly improving fertilizer utilization efficiency.

In terms of cost, NPK fertilizers’ high content of active ingredients and low byproduct count significantly reduce packaging, storage, and transportation costs. Furthermore, investing in NPK fertilizer production lines offers preferential policies. As environmental protection and sustainable agricultural development gain traction, the government is actively encouraging the green and efficient fertilizer industry. Investing in such production lines is expected to benefit from tax exemptions, subsidies, and other policy support, reducing operating costs and increasing return on investment.

In terms of technological and product diversity, NPK fertilizer production lines offer a variety of processes, including steam granulation, twin-roll extrusion, and high-pressure granulation, allowing for flexible selection based on different raw materials and market demands. This enables the production of a wide range of compound fertilizers to meet the specific needs of different crops and soils, enhancing product competitiveness. Furthermore, these production lines often utilize clean production processes, such as high-pressure granulation, which ensures a favorable operating environment and eliminates waste, waste, and other emissions, thus meeting environmental standards.

Investing in NPK fertilizer production lines offers significant advantages in improving agricultural efficiency, saving costs, aligning with policy guidelines, and providing diverse technologies and products, making it a highly promising investment direction.

Roller Press Granulation: How It Works!

fertilizer granulator Sep 15, 2025

At the heart of modern fertilizer production lies an ingenious process known as fertilizer granules compaction. This technology transforms raw materials into uniform, easy-to-handle granules through pressure alone—no heat or chemicals required!

At the heart of modern fertilizer production lies an ingenious process known as fertilizer granules compaction. This technology transforms raw materials into uniform, easy-to-handle granules through pressure alone—no heat or chemicals required! This core action is performed by the npk fertilizer granulator, a pivotal machine within a complete npk production line. The entire npk fertilizer production process, from raw material mixing to screening and coating, is built around this granulation stage. In essence, the npk fertilizer production technology encompasses the entire system and know-how, while the npk production process is the specific, sequential application of that technology to create high-quality NPK blends efficiently and sustainably.

1. Precision Batching: The Foundation of Quality

The journey begins with an automated batching system that combines feeding mechanisms, precision weighing instruments, and conveyor belts. This setup achieves remarkable accuracy within 0.2%, ensuring perfect formulation every time.

2. The Core Performer: The Compaction Machine

The star of the production line is undoubtedly the fertilizer compaction machine. This remarkable equipment operates at room temperature, forming raw materials into dense sheets through tremendous mechanical pressure. Its non-dry process significantly reduces energy consumption while delivering exceptional economic benefits.

3. Efficient Mixing and Screening

A vertical mixer blends materials thoroughly with impressive speed and energy efficiency. The resulting compacted sheets then undergo screening through a rotary screener featuring easily replaceable mesh panels. This combination ensures consistent particle size distribution while minimizing maintenance requirements.

4. Flexible Conveying and Packaging

Mobile lifting belt conveyors offer unparalleled flexibility, moving effortlessly between locations with forklift assistance. The process concludes with automated packaging systems that accurately weigh and seal the final product, ready for distribution.

This comprehensive system demonstrates how fertilizer granules compaction technology has revolutionized agricultural inputs production. The fertilizer compaction machine stands as a testament to engineering innovation—delivering superior results while conserving energy and resources.

Screw Conveyors: The Unsung Heroes of Modern Industry?

fertilizer granulator Sep 15, 2025

 Among numerous industrial equipment, screw conveyors may not be the most glamorous stars, but they are undoubtedly indispensable workhorses on production lines. These seemingly simple mechanical devices, with their unique working principles and outstanding practicality, have become the preferred solution for transporting powders and small particulate materials.

Among numerous industrial equipment, screw conveyors may not be the most glamorous stars, but they are undoubtedly indispensable workhorses on production lines. These seemingly simple mechanical devices are the vital arteries of the npk fertilizer manufacturing process, seamlessly connecting the npk blending machine to the npk fertilizer granulator machine. They ensure the precise and efficient transport of blended NPK powders, delivering a homogenous mix for the granulator, which is essential for producing uniform, high-quality fertilizer pellets with consistent nutrient content.

Ingenious Design, Comprehensive Functionality

The core structure of screw conveyors represents a crystallization of engineering wisdom. Primarily composed of spiral blades, troughs, hangers, inlet/outlet ports, and transmission devices, each component is meticulously designed to work in harmony. The spiral blades function like tireless conveyor belts, propelling materials through enclosed troughs, while carefully arranged ports ensure precise control of material flow.

Versatile Performer Across Industries

The wide application range of this conveying equipment is astonishing. In fertilizer production, it efficiently transports various raw materials; in grain processing, it ensures smooth cereal transportation; the construction and chemical industries equally rely on its services. Whether handling dry powders or small granules, screw conveyors adapt effortlessly, demonstrating remarkable versatility.

Unparalleled Advantages

The popularity of screw conveyors stems from their numerous unique advantages: simple yet reliable construction; compact footprint suitable for space-constrained areas; excellent sealing performance preventing material leakage and contamination; easy operation and maintenance significantly reducing labor costs; enclosed transportation meeting modern environmental requirements. These features make them the perfect combination of efficiency and economy in industrial production.

In today’s pursuit of efficient production, screw conveyors continue to provide reliable material handling solutions across industries with their low-profile yet high-performance operation. This is precisely why, though inconspicuous, they maintain such vital importance in industrial processes.