organic fertilizer production line – Page 7 – organic fertilizer production line

Fertilizer granulators contribute to efficient agricultural development

2025-10-22 by organic fertilizer production line

With the agriculture and fertilizer industries deeply intertwined, fertilizer form directly impacts fertilization effectiveness and industry efficiency. As the core equipment connecting fertilizer raw materials and finished products, fertilizer granulators are becoming a key driver of industry upgrades.

Fertilizer granulators transform powdered raw materials into uniform fertilizer granules through processes such as physical extrusion and conditioning. These granulated fertilizers are not only highly stable, making them suitable for long-term storage and long-distance transportation, but also enable a slow release of nutrients, extending the fertilizer’s effective lifespan and enabling more efficient crop absorption, thereby boosting agricultural production returns from the source.

Furthermore, the adaptability of fertilizer granulators meets the diverse needs of the industry. Whether producing organic fertilizers, compound fertilizers, or customized fertilizers for specific crops, the equipment can adapt to different raw material ratios by adjusting parameters. More importantly, modern fertilizer granulators continuously optimize energy efficiency, improving production efficiency while reducing energy consumption.

For fertilizer companies, fertilizer granulators are a powerful tool for enhancing product competitiveness. Against the backdrop of growing demand for high-efficiency fertilizers in agriculture, fertilizer granulators will undoubtedly drive fertilizer production towards greater efficiency, higher quality, and greater environmental protection.

organic fertilizer equipment

From pretreatment to maturity! Standard operating procedures for a windrow compost turner

2025-10-22 by organic fertilizer production line

To maximize the performance of a windrow compost turner, a scientific and standardized operating process must be followed. The entire process of the windrow compost turner revolves around four key steps: raw material pretreatment, windrow accumulation, turning and fermentation, and determination of maturity.

Raw material pretreatment is fundamental. Collected organic materials must first be sorted to remove impurities such as metal and plastic. Livestock and poultry manure should be air-dried to a moisture content below 65%, and straw should be pulverized to 5-10 cm in length. The raw materials should then be mixed at a carbon-to-nitrogen ratio of 25-30:1. The carbon and nitrogen content can be adjusted by adding straw or manure, ultimately achieving a moisture content of 55%-60%. At this point, the material will clump when held and fall apart upon contact, achieving optimal fermentation conditions.
Next, the pre-treated raw materials are stacked into trapezoidal stacks at the fermentation site. These stacks are typically 3-5 meters wide at the base, 1.5-2.5 meters wide at the top, and 1-1.8 meters high. The stack length can be adjusted flexibly based on the site and production volume. A 1.5-2 meter passageway is left between the stacks to facilitate equipment access and ventilation.

Turning and tossing is a key step in fermentation. After starting the windrow compost turner, the depth of the tossing mechanism is adjusted according to the height of the stack, ensuring that the tossing teeth penetrate 10-20 cm into the bottom of the material. The initial fermentation lasts 1-3 days, with the first tossing occurring when the material temperature reaches 50-60°C. The high-temperature period lasts 4-10 days. When the temperature rises to 60-70°C, the stacks are tossed every 1-2 days to kill harmful bacteria. The cooling period lasts 11-20 days. When the temperature drops to 40-50°C, the stacks are tossed every 2-3 days to promote humus formation. The entire fermentation cycle lasts 15-25 days.

Finally, the material is judged by maturity. When the temperature is close to room temperature, the color is dark brown, the texture is loose, and there is no odor or earthy smell, it is considered mature and can be sent to the next stage for processing.

organic fertilizer equipment

Double roller press granulators empower green fertilizer production

2025-10-22 by organic fertilizer production line

With the advancement of green agriculture, “environmental protection and resource utilization” have become core priorities in fertilizer production. Double roller press granulators (fertilizer compaction machines), with their outstanding environmental performance and resource utilization, have become key equipment for green fertilizer processing.

The double roller press granulator offers significant technological advantages in improving fertilizer quality. The fertilizer granules formed through physical extrusion have uniform density and high hardness, making them less prone to breakage and clumping during transportation and storage. More importantly, after application to the soil, these granular fertilizers release nutrients at a steady rate, extending their effective life and reducing the loss of nutrients such as nitrogen, phosphorus, and potassium through rainwater erosion.

The double roller press granulator’s environmental value is also reflected in its raw material processing and energy consumption control. The double roller press granulator can directly process agricultural waste such as fermented livestock and poultry manure, composted straw, and fruit and vegetable residues, transforming “waste” into high-quality organic fertilizer and achieving resource recycling. The equipment also eliminates the need for high-temperature drying, reducing emissions from coal or gas combustion. Its enclosed conveying design effectively controls dust spillage, improving the production environment.

Furthermore, its operation and maintenance requirements are low. Its simple structure and clear procedures allow workers to master the process after a short training period. Routine maintenance requires only regular inspection of the squeeze rollers for wear and cleaning of the feed channel, significantly reducing operational costs for small and medium-sized fertilizer companies.

organic fertilizer equipment

Rotary Drum Granulator: Core of Modern Granulation

2025-10-21 by organic fertilizer production line

Technical Overview

A rotary drum granulator is a device that forms particles under suitable humidity conditions by rolling and colliding materials inside a rotating drum, utilizing the viscosity of the materials themselves and external binders. In modern fertilizer production, whether serving as an NPK fertilizer granulator or an organic fertilizer granulator, this granulation method plays a crucial role. Compared with the double roller press granulator, drum granulation is more suitable for processing formulations requiring liquid components.

Equipment Structure and Working Principle

The rotary drum granulator mainly consists of the following parts:

Rotating drum body:Made of rolled steel plates, with lifting plates or spiral blades on the inner wall to increase material rolling and collision, promoting particle formation
Transmission device:Including motor, reducer, and transmission sprocket, providing power for the rotating drum body
Supporting device:Supports the weight and rotation of the drum body, usually using rolling bearings or sliding bearings
Spray system:Used to spray proper amount of water or binder during granulation to control the humidity and viscosity of materials
Feeding and discharging devices:Including feeding and discharging ports, used for the entry and exit of materials
Control system:Used to monitor and adjust the operating parameters of equipment, such as speed, humidity, temperature, etc., to ensure the stability and particle quality of the granulation process

Application Scope and Technical Advantages

Fertilizer Production Applications

In a complete NPK production line, the drum granulation process can efficiently handle various formulations. Whether serving as a professional NPK fertilizer granulator for compound fertilizer production or as an organic fertilizer granulator for processing organic materials, it ensures product quality stability.

Chemical Product Production

For producing chemical raw materials such as catalysts, adsorbents, and desiccants, the rotary drum granulator ensures particle uniformity and strength.

Granulation Technology Comparison

Technology Type	Rotary Drum Granulator	Double Roller Press Granulator	Suitable Scenarios
Working Principle	Rolling agglomeration granulation	Mechanical pressure forming	Selected based on material characteristics
Particle Shape	Spherical or near-spherical	Flake or hemispherical	Selected based on product requirements
Humidity Requirements	Requires liquid addition	Dry production	Selected based on process
Investment Cost	Medium	Lower	Selected based on budget

Production Process Flow

In modern NPK production lines, the drum granulation process typically includes the following steps:

Raw material pretreatment and precise batching
Uniform material mixing
Drum granulationin the rotary drum granulator
Particle drying and cooling
Screening and coating treatment
Finished product packaging

For specific production needs, rotary drum granulators and fertilizer roller press machines are sometimes used in combination to achieve optimal production efficiency and product quality.

Technology Development Prospects

With the growing global demand for efficient agriculture and sustainable development, rotary drum granulator technology continues to innovate. Whether applied as an NPK fertilizer granulator in compound fertilizer production or serving as an organic fertilizer granulator in organic waste resource utilization, it is developing towards higher efficiency, energy savings, and intelligence. Compared with the double roller press granulator, drum granulation technology has obvious advantages when processing formulations containing liquid components, while the double roller press granulator holds an important position in the field of dry granulation.

In the future, with advancements in intelligent control technology, rotary drum granulators will be better integrated into modern NPK production lines, achieving more precise process control and higher energy utilization efficiency, making greater contributions to the development of the global fertilizer industry.

organic fertilizer equipment

Chain compost turner: efficient composting and resource utilization

2025-10-21 by organic fertilizer production line

The chain compost turner represents a significant advancement in modern composting technology, addressing efficiency bottlenecks in processing large-scale organic waste through its unique design.

Working Principle and Advantages

The chain compost turner represents a significant advancement in organic processing equipment, adopting a continuous conveying composting design that enables uninterrupted fermentation operations. This versatile compost fertilizer machine offers superior operational flexibility compared to traditional trough-type systems, operating without the constraints of fixed fermentation tanks.

As one of the essential equipments required for biofertilizer production, this machine efficiently performs windrow fermentation in open areas, making it particularly suitable for large-scale operations. When integrated with other fertilizer production machine components such as the double roller press granulator and disc granulation production line, it creates a comprehensive system capable of handling the complete npk fertilizer production process.

While the large wheel compost turning machine serves similar purposes for certain applications, the chain compost turner stands out for its efficiency in large-scale organic fertilizer production bases and organic waste treatment centers, providing a robust solution for modern agricultural needs.

This equipment significantly enhances production efficiency while reducing operational costs in organic fertilizer manufacturing facilities.

Main technical advantages include:

Large processing capacity, single machine daily processing capacity up to 500-2000 cubic meters
Turning depth up to 1.5-2 meters, ensuring thorough fermentation of deep materials
High degree of automation, reducing labor costs
Adaptable to various complex terrains and working environments

Raw Material Processing Capability

Livestock and Poultry Manure

Includes high-density organic materials such as chicken manure, pig manure, cow manure, and sheep manure. The powerful turning of the chain compost turner can break up the compacted state of manure. Through ventilation and temperature increase during the turning process, it effectively kills pathogens, parasite eggs, and weed seeds in the manure, while reducing the emission of harmful gases such as ammonia and eliminating manure odor.

Crop Straw

Such crude fiber materials as corn straw, wheat straw, rice straw, etc. The chain compost turner’s teeth can tear and stir bundled or segmented straw, making it evenly mixed with other organic materials, accelerating the degradation and composting of the straw, and converting it into organic matter and humus in organic fertilizer.

Industrial Organic Waste

These materials include wine lees, vinegar lees, furfural residue, Chinese medicine residue, and slaughterhouse waste. These materials have high moisture content and are easily corrupted. The chain compost turner can reduce the moisture content of the materials through continuous turning, promote the growth of beneficial microorganisms, and achieve harmless treatment and resource utilization of waste residues.

Municipal Organic Waste

Such as kitchen waste, landscaping waste (dead branches and leaves, weeds, etc.). The chain compost turner can centrally process these scattered wastes, converting them into high-quality organic fertilizer raw materials through physical crushing and biological fermentation during the turning process, thereby reducing the amount of urban waste landfilled.

Sludge Treatment

Includes sludge from municipal sewage treatment plants and industrial wastewater treatment plants. After strict testing for heavy metal content and ensuring compliance, the chain compost turner reduces the sludge’s moisture content (from approximately 80% to below 60%) by turning it, stabilizing its properties and eliminating odor and pathogens, making it a safe organic fertilizer raw material.

organic fertilizer equipment

Efficient and Eco-Friendly Roller Press Granulator Production Line

2025-10-21 by organic fertilizer production line

In modern agricultural production, the quality and efficiency of fertilizers are crucial for crop yields. The roller press granulator production line, as an advanced fertilizer manufacturing solution, has gained widespread recognition in the global agricultural sector due to its efficiency, environmental friendliness, and flexibility. This production line is not only suitable for various raw materials but also allows the addition of trace elements such as boron, iron, copper, zinc, and manganese, meeting the nutritional needs of different crops.

Advantages of Roller Press Granulation

Roller press granulation represents a significant advancement in the NPK manufacturing process, offering substantial advantages over traditional methods like rotary granulator and drum granulator systems. This innovative approach to fertilizer granules compaction requires no drying process, enabling granulation at room temperature with one-time forming through specialized fertilizer compaction machine technology.

The roller press granulation method significantly reduces energy consumption and investment costs while improving economic benefits throughout the entire NPK fertilizer production line. Unlike conventional systems, this technology has no special requirements for raw material particle size; both 1-4mm granular materials and fine powder materials can be effectively processed, making it particularly suitable for utilizing unqualified powder materials and by-products.

This versatility in the NPK manufacturing process minimizes waste and substantially lowers production costs. The compact nature of fertilizer granules compaction ensures uniform nutrient distribution and improved physical properties in the final product. Additionally, the complete NPK fertilizer production line incorporating roller press granulation produces no wastewater or exhaust emissions, complying with global environmental standards and contributing to sustainable agricultural development. The efficiency of modern fertilizer compaction machine equipment far surpasses that of traditional rotary granulator and drum granulator systems, particularly in terms of energy conservation and operational flexibility.

The integration of roller press granulation technology represents a paradigm shift in fertilizer production, offering an environmentally responsible solution that maintains high productivity while reducing the ecological footprint of the NPK manufacturing process.

Key Equipment Components

The roller press granulator production line consists of several key pieces of equipment to ensure efficient and continuous operation:

· Automatic Batching System: Composed of feeding systems, weighing devices, silos, and conveyor belts, it combines the speed of dynamic batching with the accuracy of static batching (error rate of only 0.2%) for precise ingredient proportioning.

· Roller Press Granulator: As the core equipment, it uses a non-drying process to granulate at room temperature, requiring low investment and delivering high economic benefits, suitable for production scales of all sizes.

· Vertical Mixer: Features a long service life, energy efficiency, compact size, fast mixing speed, and continuous operation, making it ideal for urban and rural construction projects.

· Rotary Screener: Equipped with combined screens that are easy to repair and replace, it has a simple structure, user-friendly operation, and stable performance, making it an ideal equipment for compound fertilizer production.

· Belt Conveyor: Equipped with mobile and lifting devices, it offers high flexibility and can be moved to suitable locations for loading and unloading using forklifts or other power locomotives, adapting to various site conditions.

· Packaging Machine: Automatic packaging scales are divided into semi-automatic and fully automatic types, using screw feeding and forced discharge to achieve efficient packaging and enhance overall production efficiency.

Global Application Prospects

The roller press granulator production line is not only applicable to traditional fertilizer production but also to organic fertilizers, compound fertilizers, and specialty fertilizers. Its flexible design allows for the addition of various trace elements, helping farmers customize fertilizer formulas based on soil and crop needs. As global attention to agricultural sustainability increases, this low-energy, low-emission production line will play a significant role in both developing and developed countries. For instance, in resource-limited regions, using local powdered raw materials can significantly reduce transportation and processing costs, promoting local agricultural development.

In summary, the roller press granulator production line, with its efficient, economical, and eco-friendly characteristics, provides a reliable solution for global agriculture. By integrating advanced equipment, it enables fully automated production from batching to packaging, improving fertilizer quality while reducing environmental impact, thereby contributing to global food security.

organic fertilizer equipment

Double roller press granulators are an efficient and stable choice for fertilizer granulation

2025-10-21 by organic fertilizer production line

In fertilizer production, the granulation process directly impacts fertilizer application convenience, storage stability, and nutrient utilization. Due to its unique technological advantages, double roller press granulators (commonly known as fertilizer compaction machines) are the preferred equipment for many production scenarios. They can transform a variety of fertilizer raw materials into uniform granules without complex pretreatment, offering both adaptability and practicality.

The operating principle revolves around “physical extrusion.” Crushed and mixed fertilizer raw materials are conveyed between two pairs of counter-rotating extrusion rollers at the core of the equipment. Under pressure from the roller surfaces, the raw materials are compressed into continuous flakes. These flakes then enter a crushing unit, breaking them into irregular particles. Screening equipment then selects the finished product that meets the required particle size.

The core advantages of double roller press granulators lie in their flexibility and energy efficiency. Requiring no binders, granulation relies solely on the raw materials’ inherent physical properties, preserving the natural properties of organic fertilizers or the nutrient purity of compound fertilizers. This eliminates the high-temperature drying step required in traditional granulation. Whether processing organic fertilizer, compound fertilizer, or functional bio-fertilizer, stable granulation can be achieved by simply adjusting parameters such as extrusion pressure and roller speed, providing an efficient solution for fertilizer production.

organic fertilizer equipment

Rotary drum granulators optimize the nutrient content and application experience of organic fertilizer granules

2025-10-21 by organic fertilizer production line

The core value of organic fertilizer lies in nutrient supply and convenient application, and granule shape directly impacts these two properties. Insufficient nutrient retention reduces fertilizer efficiency, while uneven granules increase the difficulty of field application. By optimizing process details, rotary drum granulators can reduce nutrient loss during the granulation process while creating granule shapes that meet field needs.

In terms of nutrient retention, the rotary drum granulator’s low-temperature granulation is particularly advantageous. Relying on physical tumbling to form granules, the granulator eliminates the need for high pressure and maintains an internal temperature below 35°C, maximizing the retention of active ingredients in the raw materials. Its nutrient retention rate is 5%-8% higher than that of traditional equipment.

In terms of granule application experience, granules produced by rotary drum granulators better meet field needs. On the one hand, the equipment can produce uniform granules with a diameter of 2-5mm by adjusting the drum speed and die aperture, making it easier for farmers to apply fertilizers using seed drills and reducing the unevenness of manual spreading. On the other hand, the moderate hardness of the granules (compressive strength of 10-15N) prevents them from breaking down during transportation and slowly disintegrates in the soil, achieving “slow-release fertilizer supply” and avoiding the root burn caused by concentrated nutrient release.

For organic fertilizer companies pursuing “high quality and low price,” the high-nutrient, easy-to-apply granules produced by the rotary drum granulator can significantly enhance their product’s market competitiveness.

organic fertilizer equipment

Common organic fertilizer production line types and key equipment configurations

2025-10-21 by organic fertilizer production line

In the fertilizer production industry, different types of fertilizer production lines correspond to varying production requirements and process characteristics. Understanding common fertilizer production line types and key equipment configurations is crucial for companies to plan production and improve efficiency.

Currently, mainstream fertilizer production lines include organic fertilizer production lines, NPK fertilizer production lines, and bio-organic fertilizer production lines. Organic fertilizer production lines primarily use agricultural waste and livestock manure as raw materials, producing organic fertilizer through fermentation, crushing, and granulation. NPK fertilizer production lines focus on optimizing the ratio of nitrogen, phosphorus, and potassium to produce compound fertilizers. Bio-organic fertilizer production lines build on traditional organic fertilizer production by incorporating biological strains to enhance the bioactivity of the fertilizer.

While different production lines have different focuses on equipment configuration, they share common core equipment. The crushing stage typically requires a fertilizer crusher to ensure the raw material particle size meets subsequent processing requirements. The granulation stage utilizes fertilizer granulators, such as disc granulators and rotary drum granulators. The mixing stage relies on a fertilizer mixer to ensure uniform mixing of the raw materials. Furthermore, fertilizer conveyors, screening machines, dryers, and coolers are essential equipment, collectively forming the complete fertilizer production process.

When configuring equipment, companies should carefully select equipment specifications and models based on the production line’s capacity, raw material characteristics, and product requirements to ensure optimal compatibility across all stages and improve overall production efficiency.

organic fertilizer equipment

Flat die granulator: Solving the problem of fiber entanglement in organic fertilizer

2025-10-21 by organic fertilizer production line

Fiber raw materials such as straw, mushroom residue, and rice husks are common components in organic fertilizer production. However, these materials are prone to fiber entanglement with the rollers during pelletizing, leading to equipment stalls and a sharp drop in pelletizing efficiency. The flat die granulator, with its targeted structural design, is an ideal solution for this problem.

The core cause of fiber entanglement is insufficient cleavage of long fibers in the raw material, or a smooth roller surface that causes fibers to entangle as the rollers rotate. The flat die granulator’s design addresses this problem by focusing on two key points: First, the flat die holes feature a “deep straight hole” layout (15-20mm depth). This shortens the vertical force path when the fiber raw material is squeezed into the hole, reducing the fiber’s residence time between the rollers and the flat die.

Second, a pre-crushing pretreatment is recommended, with the fiber raw material pulverized to 0.5-1mm to ensure that long fibers are cut, thus reducing the likelihood of entanglement at the source.

In actual production, if slight entanglement still occurs, the gap between the roller and the flat die can be adjusted to maintain 0.2-0.3mm, or 1%-2% bentonite can be added to the raw materials for further optimization. This solution can increase the smoothness of granulation of fiber raw materials to over 90%, avoiding frequent downtime for cleaning and ensuring stable operation of the organic fertilizer production line.