Author: organic fertilizer production line

organic fertilizer equipment

In the fertilizer granulator series, which granulation method is most suitable for large-scale production?

by organic fertilizer production line

In the field of fertilizer production, granulation technology is a key link to improve the quality and efficiency of fertilizer. In the face of many fertilizer granulator series, choosing the most suitable for large-scale production of granulation methods, you need to consider many factors such as production efficiency, cost, product quality and operation convenience.
 

Fertilizer Granules Compaction Machine: representative of high efficiency

 
Fertilizer Granules Compaction Machine occupies a place in mass production for its high efficiency and good forming effect. The device extrudes material through a pair of rotating rollers to form particles. It is especially suitable for dealing with those materials with poor bonding, such as urea, phosphate fertilizer, etc., and can realize the molding of a large number of fertilizers in a short time. In addition, the Fertilizer Granules Compaction Machine consumes relatively low energy, is easy to maintain, is suitable for continuous and automated production processes, is one of the preferred equipment in large-scale production.

Flat-Die Pellet Machine: has high adaptability

 
A Flat-Die Pellet Machine is used to press the material into particles of the desired shape by pressing the mold. This granulation method is highly adaptable to materials and can handle a variety of different types of fertilizer raw materials, including organic and inorganic fertilizers. Another advantage of the Flat-Die Pellet Machine is that the shape and size of the pellets can be adjusted by changing the mold to meet different market needs. However, Flat-Die Pellet machines are slightly less productive than Fertilizer Granules Compaction machines and may require more mold replacement and maintenance work in mass production.

Rotary Drum Granulator: Uniform particle quality

 
Rotary Drum Granulator turns and rounds materials by rotating the drum and an internal copy plate to form particles. This granulation method is suitable for the production of high-quality organic fertilizers, because the Rotary Drum Granulator can fully mix and form the material at a slower speed, thus ensuring the uniformity and quality of the particles. Rotary Drum Granulator has low energy consumption and wear during the production process and is suitable for long continuous operation, as well as for mass production.

Disc Granulator: Easy to operate

 
Disc Granulator By rotating a disc, the material rolls on the surface of the disc and gradually gathers into particles. This granulation method is simple to operate, easy to control, and suitable for small and medium-sized production. The investment cost of Disc Granulator is relatively low, but its production efficiency and pellet forming effect may not be as good as that of Fertilizer Granules Compaction Machine and Rotary Drum Granulator. Therefore, it may not be optimal in mass production.

conclusion

 
Considering production efficiency, cost, product quality and operation convenience, Fertilizer Granules Compaction Machine and Rotary Drum Granulator have more advantages in mass production. Fertilizer Granules Compaction Machine, with its high efficiency and low energy consumption, is especially suitable for treating materials with poor adhesion, while Rotary Drum Granulator, because of its uniform particle quality and low operating cost, Suitable for the production of high quality organic fertilizer. According to the characteristics and production needs of different fertilizer raw materials, choosing the right granulator is the key to ensure the quality and production efficiency of fertilizer products.

organic fertilizer equipment

Rotary Drum Granulator: The Core of Fertilizer Mass Production?

by organic fertilizer production line

In large-scale fertilizer production workshops, you’ll always see a constantly rotating “huge machine”—the  drum granulator. With its impressive production capacity, it’s become the workhorse of compound and organic fertilizer production. But did you know? A drum granulator alone can’t fulfill production tasks; from raw materials to finished product, it relies on a host of supporting equipment.

As the core of mass production, the power of the drum granulator cannot be underestimated. As its cylindrical drum slowly rotates, the internal lifting plate continuously stirs the raw materials. Combined with the applied binder, the powdered materials gradually agglomerate into uniform granules.Whether it’s compound fertilizers requiring high hardness or organic fertilizers rich in organic matter, it can easily handle them, processing 10-50 tons of raw materials per hour with a consistently high pelletizing rate of over 90%, perfectly meeting the needs of large-scale production.

The drum granulator’s efficient output relies on the close coordination of upstream and downstream equipment. Initially, the crushing equipment breaks down bulky raw materials into a uniform powder for granulation. The  batching system   precisely controls the ratios of nitrogen, phosphorus, potassium, and other elements to ensure the fertilizer’s nutrient content meets standards. Later, the freshly formed wet pellets enter a dryer for rapid dehydration in a high-temperature airflow. A  fertilizer cooler  then cools the hot pellets to room temperature to prevent clumping.Finally, a screening machine selects granules of acceptable size. Unacceptable particles are returned to the granulator for reprocessing before being sealed and packaged by an automatic packaging machine. This complete process is both efficient and precise.

Today, global agricultural demand for high-quality fertilizers continues to grow. A production line consisting of a rotary drum granulator and supporting equipment can ensure both production output and strict quality control, providing strong support for increasing agricultural income.

organic fertilizer equipment

Three Core Application Scenarios for Disc Granulators

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Due to their high pellet formation rate and highly adjustable parameters, disc granulators have expanded beyond the traditional fertilizer sector to diverse applications such as environmental protection and metallurgy, becoming a “universal device” for material formation across multiple industries. Their differentiated adaptability to various application scenarios is their core competitive advantage.

Agriculture is the primary market for disc granulators, with each specific application focusing on its own specific niche. In organic fertilizer production lines, for fibrous materials such as livestock and poultry manure and straw, the equipment requires rubber-lined discs with anti-sticking walls, an inclination angle of 35°-40°, and a humic acid binder to achieve efficient granulation at a moisture content of 15%-18%. Compound fertilizer applications require even higher corrosion resistance. 304 stainless steel discs, combined with an atomizing spray system, precisely control the adhesion of nitrogen, phosphorus, and potassium mixtures, ensuring pellet roundness that meets high fertilization standards.

In the field of environmental solid waste treatment, disc granulators have become a key component in resource utilization. When processing municipal sludge, the equipment first reduces the sludge’s moisture content to below 20% through a preheating system. Then, using bentonite as a binder, the equipment, operating at a speed of 18-20 rpm, converts the sludge into spherical pellets suitable for incineration or landfill. For the treatment of industrial solid waste such as steel slag and slag, wear-resistant ceramic-lined discs can withstand the impact of high-hardness materials. Combined with a powerful scraper, they ensure uniform mixing of the ore powder and binder, effectively improving solid waste utilization.

Mineral powder granulation in the metallurgical industry places stringent requirements on equipment stability. For high-density materials such as iron ore concentrate and manganese ore fines, disc granulators utilize a thickened steel frame with an adjustable tilt angle of 40°-45°. A high-frequency vibrating distributor ensures uniform feeding and ensures the compressive strength of the ore powder pellets meets the feed requirements for blast furnace smelting. Furthermore, for the granulation of rare earth materials, the equipment must be equipped with a sealed dust cover to prevent leakage of ultrafine powder and ensure a safe production environment.

From agriculture to environmental protection to metallurgy, the disc granulator continues to expand its application boundaries through customized adjustments of materials, parameters, and supporting systems. In the future, with the integration of new materials technology, its application potential in refined fields such as medicine and food additives will be further released.

organic fertilizer equipment

The new type two-in-one organic fertilizer granulator’s complete operating process.

by organic fertilizer production line

The new type two-in-one organic fertilizer granulator features an integrated “mixing + granulation” design, simplifying organic fertilizer production. Its operations are centered around four core steps, ensuring pellet quality and efficiently supporting the organic fertilizer production line.

The first step is raw material pretreatment. Fermented organic fertilizer (such as livestock manure and composted straw) must first be crushed to a 40-60 mesh fine powder with a moisture content of 25%-35%. Excessively coarse raw materials will result in uneven granulation, while inappropriate moisture content will affect the final product. Meeting pretreatment standards is essential for stable equipment operation.

The second step is the core mixing process. Pretreated raw materials enter the integrated mixing system. A high-strength alloy steel agitator shaft drives the wear-resistant blades, while a variable frequency motor precisely controls the speed between 20-60 rpm. If binders such as bentonite are required, they are added simultaneously. The blades shear and stir the powder, achieving over 90% mixing uniformity within 5-10 minutes, preventing uneven nutrient distribution in the pellets.

The third step is targeted granulation. The mixed material automatically enters the granulation system, where the equipment changes its forming method based on the raw material’s characteristics. Highly viscous raw materials (such as chicken manure organic fertilizer) use a stirring granulation mechanism, where paddles knead the material into 2-4mm pellets. High-fiber raw materials (such as straw organic fertilizer) use a roller-type granulation mechanism, where die extrusion forms the pellets. The stainless steel disc can be hydraulically adjusted from a 30° to 50° tilt angle, and a wear-resistant rubber lining reduces sticking to the wall. The pellet formation rate exceeds 90%, and the pellets are uniformly shaped.

Finally, the screen residue is recycled and connected. After granulation, the pellets pass through an integrated screening device. Qualified pellets enter the drying stage (dried to a moisture content of less than 10%), while substandard fines are returned to the mixing system through a recirculation channel for processing with new raw materials. This design achieves a raw material utilization rate exceeding 95%, reducing waste and ensuring continuous production.

The entire process eliminates the need for frequent manual handling. The new type two-in-one organic fertilizer granulator can complete the entire process from raw material input to qualified pellet output, significantly improving the efficiency and convenience of organic fertilizer production.

organic fertilizer equipment

Reasons for the Growing Demand for Bio-Organic Fertilizer Production Lines

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As agriculture moves toward green and sustainable development, demand for bio-organic fertilizer production lines is growing rapidly, primarily due to the following key factors.

Policy guidance is a key driver. Many countries have introduced specific policies to support the development of the bio-organic fertilizer industry. For example, the European Union has implemented a “Farm to Fork” strategy, which explicitly calls for reducing the use of chemical fertilizers. It subsidizes farms that use bio-organic fertilizers and offers tax breaks to bio-organic fertilizer manufacturers. For example, Germany exempts bio-organic fertilizer manufacturers that meet environmental standards from some corporate income tax. The United States has established a special fund to support the construction of bio-organic fertilizer production lines and has enacted regulations to strictly restrict the indiscriminate disposal of agricultural waste. This has encouraged farms and businesses to transform livestock and poultry manure, crop straw, and other products into usable resources through bio-organic fertilizer production lines, reducing pollution while creating economic value. Evolving market demand is also crucial.

With rising consumption, green and organic agricultural products are gaining popularity, with their market size growing at an average annual rate of 10%. Bio-organic fertilizers can improve the quality of agricultural products, increase the vitamin C content of fruits and vegetables, and eliminate the “chemical fertilizer smell,” thus meeting market demand for high-quality agricultural products. Furthermore, long-term use of chemical fertilizers has led to soil compaction and a decrease in organic matter. Bio-organic fertilizers, with their ability to loosen the soil, replenish carbon sources, and inhibit soil-borne diseases, are urgently needed for soil remediation. Furthermore, the growth of large-scale agriculture has significantly increased demand for bio-organic fertilizers from planting bases and family farms, prompting companies to expand production capacity.

Technological advances have provided strong support for the development of bio-organic fertilizer production lines. Automated production lines have improved production efficiency, reduced labor costs by over 60%, and lowered energy consumption by 20%-30%. Advanced bacterial strains and processes have significantly improved product quality and significantly increased the number of viable bacteria. Intelligent management enables full control of the production process, attracting more companies to participate.

Furthermore, abundant and affordable raw materials provide cost advantages for bio-organic fertilizer production lines, and companies can also receive environmental protection incentives for waste disposal. Faced with market saturation and regulatory pressure, traditional chemical fertilizer companies have shifted to the bio-organic fertilizer business. The continuous influx of new players has further increased demand for production lines.

organic fertilizer equipment

Organic Fertilizer Production Lines: Does Raw Material Determine Success or Failure?

by organic fertilizer production line

Starting an organic fertilizer production line involves more than just purchasing equipment—it hinges on two crucial factors: raw material supply and fermentation technology. Failure in any of these steps can lead to substandard product or even stagnation.

Understanding the fundamental differences between raw material requirements for NPK and organic fertilizer production lines is essential for planning a successful operation.

NPK Fertilizer Production

Requires precisely measured chemical compounds—primarily nitrogen (N), phosphorus (P), and potassium (K) sources. These mineral-based ingredients need exact proportioning to achieve specific nutrient ratios.

Organic Fertilizer Production

Depends on organic waste materials like animal manure, crop residues, and food waste. These materials require proper composting and fermentation to stabilize nutrients and eliminate pathogens.

Essential Equipment for Fertilizer Production

Beyond raw material considerations, selecting the right machinery is critical for efficient production:

Fertilizer Mixer Machine

Ensures homogeneous blending of ingredients for consistent nutrient distribution

Fertilizer Granulator

Transforms mixed materials into uniform pellets for easier handling and application

Fertilizer Packing Machine

Automates the final packaging process, ensuring proper sealing and accurate weights

Successful fertilizer production—whether organic or NPK—requires careful consideration of both raw material specifications and appropriate equipment selection. The fertilizer mixer machine, fertilizer granulator, and fertilizer packing machine work together to transform raw materials into market-ready products, but their effectiveness depends entirely on proper raw material preparation and processing techniques.

Raw materials are the lifeblood of organic fertilizer.

These production lines rely on livestock manure, crop straw, and agricultural waste—materials that must be abundant and local. Imagine building a production line in an area with few farms: transporting manure from 100 kilometers away would increase costs by 30-40%, eroding profits. Conversely, a plant located near poultry farms or rice paddies would thrive: fresh manure (rich in nitrogen) and straw (rich in carbon) create the perfect nutritional combination, while short transportation distances reduce the risk of spoilage.

Fermentation technology is equally crucial.

The value of organic fertilizer lies in its nutrient content and microbial activity, both of which rely on controlled decomposition. A poor fermentation process—overheating, overcooling, or insufficient aeration—can harbor harmful pathogens or reduce nitrogen content by 20% or more. Established production lines use automated compost turners to regulate temperature (55-65°C, optimal for weed control) and aeration, ensuring consistent nutrient levels (typically 3-5% total nitrogen, phosphorus, and potassium) and meeting organic certification standards.

Where do these lines thrive?

In regions with strict environmental regulations and a thriving organic agriculture sector. Take Yunnan’s tea-producing regions, for example: strict restrictions on chemical inputs drive demand for organic fertilizers, while local bamboo and tea waste provide a stable source of raw materials. Similarly, in Zhejiang’s vegetable hubs, consumers pay premium prices for organic produce, making organic fertilizer lines not only compliant but also highly profitable.

In short, organic fertilizer lines succeed when raw materials are sourced locally and the fermentation process is precise. It’s a marriage of geography and technology—a combination that, when chosen correctly, nourishes the crop while generating profit.

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Analysis of Common Risks in Organic Fertilizer Production Lines

by organic fertilizer production line

Organic fertilizer production lines rely on agricultural waste conversion to achieve resource recycling, but their production processes are complex and susceptible to internal and external factors. They face multiple risks and challenges, requiring accurate identification and proactive prevention.

Raw material supply risks are the primary obstacle to production line operations. Organic fertilizer raw materials primarily consist of livestock and poultry manure and crop straw, which are significantly constrained by natural and social factors. Seasonal variations can lead to a “peak season surplus” and “off-season shortage” in straw supply, such as abundant straw after the autumn harvest and a tight supply in the spring. Sudden animal epidemics can cause farm closures, directly cutting off the source of livestock and poultry manure. Furthermore, raw material quality fluctuates significantly. Excessive levels of heavy metals in manure or moldy straw can result in substandard quality in the finished organic fertilizer, impacting sales and potentially leading to environmental complaints.

Equipment operation risks directly threaten production continuity. Organic fertilizer production lines involve multiple processes, including fermentation, crushing, granulation, and drying. Long-term, high-load operation of core equipment can lead to malfunctions. Leaks in the hydraulic system of the fermentation granulator can lead to uneven granulation and prolonged composting. Wear on the granulator’s molds can reduce pellet formation and increase raw material loss. Failure of the dryer’s hot air furnace can result in incomplete drying of the material, leading to caking and deterioration. If critical equipment shuts down, the entire production line can be paralyzed, resulting in significant economic losses.

Production safety risks harbor significant hidden dangers. During the fermentation process, microorganisms decompose organic matter, producing gases such as methane and ammonia. Methane is flammable and explosive. If the workshop is poorly ventilated and concentrations exceed standards, it can easily cause an explosion when exposed to open flames. The drying process uses high temperatures, making excessively thick material accumulation or improper temperature control a fire hazard. Furthermore, some equipment components lack effective protection, and improper operator operation can lead to mechanical injuries.

External environmental risks should also not be underestimated. At the market level, the demand for organic fertilizers is affected by the agricultural production cycle. During the peak season, products are in short supply, while during the off-season, inventory is piling up and prices fluctuate sharply. At the policy level, upgraded environmental protection standards may require production lines to increase investment in pollution control equipment. Adjustments to agricultural subsidy policies will directly affect product market competitiveness. If organic fertilizer production lines fail to adapt to policy changes in a timely manner, they may face compliance risks and operational pressures.

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Analysis of Key Equipment in NPK Fertilizer Production Lines

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In the transformation of NPK fertilizers from raw materials to finished products, key equipment is central to ensuring precise nutrient distribution and high-quality pellets. The core equipment in a complete NPK fertilizer production line can be categorized into three main processes: pretreatment, processing, and post-processing. Each device has a unique mission.

In raw material pretreatment, the crusher and batching system are the first checkpoints. NPK raw materials (such as urea and monoammonium phosphate) are often in lumpy form. The crusher must crush them into a uniform powder of less than 1mm. Uneven particle size can lead to inadequate mixing and result in significant nutrient variations within a single bag of fertilizer. The automatic batching system acts like a “precise steward,” blending nitrogen, phosphorus, and potassium raw materials and auxiliary materials according to a preset NPK ratio (such as 15-15-15), maintaining an error within 0.5%. This is crucial for ensuring that the fertilizer’s nutrient content meets standards.

In the core processing phase, the mixer and granulator are the “heart” of the production line. A twin-shaft mixer uses counter-rotating blades to blend various raw materials for 3-5 minutes, achieving a consistent NPK content per gram. Insufficient mixing time can result in areas with high nitrogen and low phosphorus content, impacting crop absorption. The granulator determines the fertilizer’s form. A rotary drum granulator is suitable for large-scale production. The rotating drum tumbles the material, combined with water mist wetting, kneading the powder into round granules with a diameter of 2-4mm. This creates a good appearance and facilitates mechanized fertilization. An double roller perss granulator, which forms the granules through a die without drying, is suitable for small-scale production lines producing high-concentration fertilizers. However, the granules are irregular and more suitable for customized small-batch production.

In the post-processing stage, the dryer, cooler, and coating machine are “quality guardians.” The dryer uses hot air drying technology to reduce the moisture content of the granulated wet granules from 20% to below 8%. Excessive moisture content can lead to caking and mold. The cooler cools overheated fertilizer granules to a suitable temperature. The coating machine sprays paraffin wax or kaolin to form a protective film on the surface of the granules, preventing clumping during storage and transportation, extending shelf life, and reducing dust pollution during fertilization.

These key equipment are closely linked and together determine the quality, yield, and stability of NPK fertilizers, making them indispensable components of the NPK fertilizer production line.

organic fertilizer equipment

A New Path To “Improve Efficiency And Reduce Costs” For Disc Granulation Production Lines

by organic fertilizer production line

 In the modern fertilizer production industry, the disc granulator acts as a precision sculptor, meticulously shaping various raw materials into uniform, robust fertilizer pellets. As a core equipment in fertilizer production lines, it efficiently processes organic fertilizers, organic-inorganic compounds, and specialized formulations like biofertilizers.

The disc granulator plays an indispensable role in NPK fertilizer production technology, working in synergy with other critical equipment throughout the manufacturing process.

NPK Fertilizer Production Process

Raw Material Blending

The NPK blending machine precisely mixes nitrogen, phosphorus, and potassium components with other nutrients.

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Mixing Phase

The fertilizer mixer machine ensures homogeneous distribution of all ingredients before granulation.

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Granulation

The disc granulator forms uniform pellets through a rotating motion and liquid binder application.

Equipment Relationship in NPK Manufacturing

The disc granulator and NPK blending machine maintain a complementary relationship—while the blender creates the perfect nutrient ratio, the granulator gives this mixture its final market-ready form. As an NPK fertilizer granulator machine, it transforms the blended powder into durable, spherical pellets that resist breaking during handling and storage.

This integrated approach ensures consistent nutrient distribution in each pellet, making the disc granulator a vital component in the NPK manufacturing process, working alongside mixing equipment to produce high-quality fertilizers with precise nutritional content.
 

Through its unique combination of efficiency and precision, the disc granulator has become essential in modern fertilizer production, particularly in NPK fertilizer manufacturing where consistent pellet quality and nutrient integrity are paramount for agricultural success.

When organic fertilizer produced through disc granulation lines is applied to soil, it significantly enhances organic matter content and increases soil organic nitrogen, improving soil structure. The advantages of this production system are clear: high pellet uniformity, effortless moisture control, and exceptional granule strength, laying a solid foundation for the entire NPK fertilizer production process.

A complete disc granulation production line resembles a well-trained orchestra, with each device playing a unique role: horizontal mixers ensure thorough blending of raw materials; drum screening machines achieve precise classification; coating machines provide protective layers; multi-silo single-weigh static automatic batching systems enable accurate proportioning; and automatic packing machines complete the final step. The conductor of this orchestra is the highly efficient and reliable NPK fertilizer granulator.

Modern disc granulator designs incorporate innovative concepts: novel and rational structure, significantly reduced weight and height, and flexible, convenient process layout, making them particularly suitable for technical upgrades in existing fertilizer plants. The large-inclination disc body allows flexible adjustment through gaskets, coupled with unique disc treatment technology, ensuring smooth discharge without tearing. Unpowered combination scrapers automatically clean edges, while corner scrapers handle dead spots—these innovative designs result in finished pellets with uniform content and exceptional quality.

More importantly, disc granulation technology demonstrates unique advantages in the NPK fertilizer production process. By precisely controlling disc inclination and rotation speed, producers can easily adjust pellet size to meet the nutritional needs of different crops. This flexibility makes disc granulators the preferred equipment for compound fertilizer manufacturers, especially excelling in producing specialty formula fertilizers.

From raw material proportioning to finished product packaging, disc granulation production lines achieve fully automated control, not only improving production efficiency but also ensuring product quality stability. This is precisely the goal pursued by modern NPK fertilizer production technology: producing the most efficient fertilizers in the most economical way, providing strong support for global food security.

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Standard Operation of a Disc Granulator in Organic Fertilizer Production

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The disc granulator, a core component of the organic fertilizer production line, acts as a “shaping craftsman.” Every step directly impacts pellet quality and safe and stable production. To maximize the performance of this critical piece of equipment, a rigorous and organized standard operating procedure is essential.

The 10 minutes before startup are essential. First, inspect the equipment: check for cracks or loosening on the disc liner, ensure adequate lubrication of transmission components (oil level should be 1/2-2/3 of the mark), and tighten the anchor bolts to prevent loosening. Prepare the raw materials: control the moisture content to 25%-35% (if too high, air dry; if too low, add water). Screen out impurities larger than 5mm to prevent clogging. Finally, perform a safety inspection, clear surrounding debris, securely close the guardrails, test the emergency stop button and overload device, and ensure proper functioning of the electrical circuits and instruments.

The 5-minute startup operation must be performed in a sequential manner. First, start auxiliary equipment such as the raw material conveyor and humidifier. Once these equipment stabilizes, start the granulator’s main motor to avoid damage caused by load. Adjust the disc inclination angle according to the material (lower for clay, higher for organic matter, 45°-55°). Set the speed to 15-20 r/min. Once the disc granulator stabilizes, slowly open the feed valve. Initially, feed at 60% of the rated capacity.

Continuous monitoring is required during operation. Check pellet formation every 10 minutes. Acceptable particle size is 2-5mm. If the pellets are too fine, reduce the feed rate or increase the inclination angle. If there is sticking, reduce the water content. Record parameters every 30 minutes. If the motor current is ≤ 90% of the rated value and the bearing temperature is ≤ 65°C, immediately shut down the machine for investigation.

The minimum shutdown time is 15 minutes. First, close the feed valve, drain the material, turn off the humidifier and main motor, clean any remaining material, inspect components for wear, and keep a maintenance log.

During the entire disc granulator operation, operators must strictly adhere to safety procedures at all times, wear dust masks and hard hats, and never open the guardrail while the machine is running. Only by implementing standardized procedures at every stage can safe and efficient organic fertilizer production be truly achieved.

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