organic fertilizer granulation machine – Page 2

Practical Methods for Improving the Granulation Yield of Flat Die Granulators

Written by fertilizer production line on September 30th, 2025. Leave a comment

In organic fertilizer production lines, flat die granulators typically process materials such as livestock and poultry manure and composted straw. These materials contain coarse fiber and experience large moisture fluctuations, which can easily lead to low granulation yields and loose pellets. To improve granulation efficiency, precise optimization in four key areas is necessary, taking into account the characteristics of the organic fertilizer material.

Raw material pretreatment must be tailored to the characteristics of the organic fertilizer. First, the moisture content should be controlled between 25% and 30%, which is the optimal range for organic fertilizer granulation. A moisture content too low can easily result in broken pellets, while a moisture content too high can cause die sticking and clogging. This can be adjusted by airing the material or adding dry straw powder. Secondly, the composted material should be pulverized to ensure that the coarse fiber particle size does not exceed 1/2 the die hole diameter to prevent fibers from wrapping around the die rollers and causing uneven extrusion. Uncomposted lumps should also be removed to prevent clogging. Additionally, 2% to 3% bentonite can be added as a binder to enhance pellet density without affecting the fertilizer’s efficiency.

Equipment adjustments require targeted optimization. Organic fertilizer materials have poor fluidity, so the die roller gap should be adjusted to 0.2-0.4mm, slightly wider than the standard setting, to prevent material from getting stuck. The roller speed should be reduced to 15-20r/min to allow ample time for the coarse fibers to be extruded and formed. For die orifice selection, a tapered die with a diameter of 4-8mm is preferred to reduce material resistance within the die and minimize the likelihood of blockage. Regularly clean the die orifice with a steel brush to remove residual fiber impurities.

Process operations should be tailored to the production scenario. High-temperature preheating is not required before startup. Simply use a small amount of wet material to “prime” the die, forming a thin layer of material on the inner wall of the die orifice to prevent subsequent material from sticking to the wall. Use a spiral feeder with a constant speed to avoid concentrated lumps of material and prevent equipment overload. If fibers are found on the surface of the pellets and they are prone to breakage during production, add binder or adjust the moisture content promptly.

Maintenance should focus on vulnerable areas. Organic fertilizer materials contain corrosive components. The die roller surface should be cleaned weekly, and residual humus should be removed with a wire brush to prevent corrosion. The inner wall of the die hole should be inspected monthly, and burrs caused by coarse fiber wear should be removed with fine sandpaper. The transmission system lubricant should be replaced quarterly, using a corrosion-resistant, specialized oil to prevent component wear caused by humus contamination.

By optimizing these measures for organic fertilizer production lines, the flat die granulator’s pelletizing rate can be increased to over 90%, reducing waste of mature raw materials while ensuring uniform organic fertilizer pellets and ensuring stable and efficient production line operation.

When using windrow compost turning machines in different seasons, pay attention to key details

Written by fertilizer production line on September 30th, 2025. Leave a comment

A windrow compost turning machine isn’t a one-size-fits-all model. Adjusting details according to the season will ensure smooth fermentation of your organic fertilizer.

Spring’s high humidity and fluctuating temperatures can easily lead to a musty odor in the compost. When using a compost turner, increase the frequency of turning the compost. Instead of turning every two days, turn every 1.5 days in spring. Loosen the compost to allow moisture to escape, and monitor the temperature. If the temperature is below 50°C, slow the compost turner’s speed to allow for a more thorough turning, allowing microbial activity to raise the temperature.

Summer temperatures are high, and the compost easily overheats (over 70°C kills beneficial bacteria). Reduce the depth of each turning to avoid bringing all the hot material below to the surface. Turn the compost once a day. Sprinkle a thin layer of soil on the surface after each turning to provide shade and reduce temperatures while preventing rapid evaporation.

Autumn is dry, and the pile is prone to dehydration and cracking. Use a windrow compost turning machine with an atomizer, spraying small amounts of water as you turn to maintain a humidity level of 50%-60%. Slow the turning speed to allow the water and raw materials to mix thoroughly and avoid patches of dryness or wetness.

Winter is cold, and the pile struggles to heat up. Reduce turning frequency to once every three days, avoiding frequent turning to disperse heat. When turning, pile the pile higher (1.2-1.5 meters). Try turning the cold material in the center with the windrow compost turning machine, covering the hot material on the outside to help retain heat and ferment.

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

Written by fertilizer production line on September 29th, 2025. Leave a comment

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.

How to Improve the Efficiency of a New Two-in-One Organic Fertilizer Granulator

Written by fertilizer production line on September 26th, 2025. Leave a comment

The efficiency of a new type two-in-one organic fertilizer granulator directly affects the production capacity of an organic fertilizer production line. Improper operation can easily lead to problems such as slow granulation and low pelletizing yield. Four optimization strategies can improve both efficiency and quality.

First, proper raw material pretreatment is essential. Strict control of raw material particle size and moisture is crucial: crush the fermented organic fertilizer into a 40-60 mesh fine powder to prevent coarse particles from blocking the equipment’s feed inlet and affecting mixing uniformity. The moisture content should be maintained at a stable 25%-35%. Adjust moisture content by drying or adding dry materials; spray water if too low.

Second, precise adjustment of equipment parameters is crucial. During the mixing process, adjust the agitator speed according to the raw material type: when processing high-fiber raw materials (such as straw fertilizer), adjust the speed to 50-60 rpm to increase shear force; when processing highly viscous raw materials (such as chicken manure fertilizer), reduce the speed to 20-30 rpm to prevent material from sticking to the wall. During the pelletizing process, the pelletizing method should be adjusted to suit different raw materials: for high-viscosity raw materials, use agitator pelletizing, adjusting the disc inclination to 40°-45°; for high-fiber raw materials, use roller compaction pelletizing, increasing the die pressure appropriately.After parameter adaptation, the granulation efficiency of the new type two-in-one organic fertilizer granulator can be increased by 20%-25%, and the granule forming rate is stabilized at more than 90%.

Furthermore, daily maintenance is essential. Before starting the machine daily, inspect the agitator blades and pelletizing die for wear. If blade edge wear exceeds 3mm or the die aperture is deformed, replace them promptly to avoid uneven mixing and uneven pellet sizes caused by aging components. Clean residual material inside the equipment weekly, especially the mixing chamber and the inner wall of the pelletizing disc, to prevent material agglomeration that affects subsequent production. Lubricate transmission components such as bearings and gears monthly to reduce mechanical friction and extend equipment operation.

Finally, optimizing production processes can further improve efficiency. The “immediate recycling of screen residue” model allows the screening of substandard fines directly back to the mixing system through a reflux channel, eliminating the need for manual transfer and reducing waiting time for raw materials. If the organic fertilizer production line requires continuous operation, a raw material buffer can be configured to ensure uninterrupted feeding of raw materials, avoiding frequent equipment starts and stops due to material shortages. After process optimization, the equipment’s effective daily production time can be increased by 2-3 hours, increasing overall production capacity by approximately 15%.

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

Written by fertilizer production line on September 25th, 2025. Leave a comment

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.

A complete analysis of the application fields of cage crusher

Written by fertilizer production line on September 24th, 2025. Leave a comment

Due to their unique pulverizing mechanism and outstanding performance, cage crushers play an indispensable role in numerous industries and have a wide range of applications.

In the building materials industry, brick and tile factories often use cage grinders to process soft and brittle materials such as shale, industrial slag, and dry clay. After these materials are crushed by cage grinders, a high proportion of fine powder particles is produced, which is crucial for brick forming.

The chemical industry is also an important application for cage crushers. They can grind medium-hard chemical raw materials such as ammonium chloride and ammonium sulfate, ensuring that these raw materials can fully participate in subsequent chemical reactions, thereby improving the production efficiency and quality of chemical products.

In compound fertilizer production, cage crushers are also indispensable for the pulverization of fertilizer raw materials such as urea. This pulverization of raw materials like urea facilitates the even release of nutrients in the fertilizer, enhancing its effectiveness.

In addition, in the production of organic fertilizers, cage crushers can crush organic waste such as sheep manure and straw, so that these wastes can better participate in the fermentation process and be converted into high-quality organic fertilizers, providing a green and environmentally friendly source of fertilizers for agricultural production, helping to improve soil and the healthy growth of crops.

Advantages and applications of the flat die granulator

Written by fertilizer production line on September 23rd, 2025. Leave a comment

The flat die granulator offers significant advantages, with the larger pressure wheel being a key feature. This larger pressure wheel also increases the bearing’s ability to withstand pressure, making the equipment more stable and reliable, and reducing failures caused by pressure. Furthermore, the larger pressure wheel prevents heat generated by extrusion friction from being transmitted to the bearing chamber, ensuring the bearing operates at a low temperature and preventing lubricant leakage, thus extending bearing life. Furthermore, the larger pressure wheel can be repaired two to three times, reducing maintenance costs and increasing project profitability, offering significant advantages over similar equipment.

The flat die granulator is suitable for a wide range of materials. In agriculture, crop straw, such as corn stalks, wheat straw, and rice husks, can be processed into biomass pellet fuel or organic fertilizer. In the domestic sector, some household waste, after sorting and processing, can also be used for pelletizing, achieving resource recycling. In industry, the flat die granulator can easily handle materials such as biofertilizer, coal, carbon black, kaolin, and stone powder, demonstrating its strong material adaptability.

Flat die granulators also play a positive role in environmental protection. On the one hand, they can process large amounts of agricultural and forestry waste, reducing environmental pollution and enabling resource recycling. On the other hand, by converting degradable materials into biodegradable plastic pellets, they provide a new approach to addressing white pollution, promoting the development of environmentally friendly materials and facilitating the achievement of sustainable development goals.

Advantages of Rotary Drum Granulators over Disc Granulators

Written by fertilizer production line on September 22nd, 2025. Leave a comment

When selecting organic fertilizer granulation equipment, both rotary drum and disc granulators are commonly used. However, rotary drum granulators, with their multi-dimensional performance advantages, better meet the efficiency and scale requirements of modern organic fertilizer production lines. The differences between the two are primarily reflected in the following four aspects.

More flexible capacity adaptability meets the needs of large-scale production. Disc granulators are limited by the diameter of their discs, typically with an hourly output of 0.5-5 tons per unit, making them suitable only for small production lines. By adjusting the drum length and diameter, rotary drum granulators can achieve hourly outputs of 1-20 tons per unit. They meet the basic production needs of small and medium-sized enterprises as well as the large-scale production of large factories. They eliminate the need for multiple units in parallel, reducing production line floor space and equipment investment costs.

They offer greater raw material compatibility and reduce pretreatment complexity. Organic fertilizer raw materials have large fluctuations in moisture and composition. Disc granulators must maintain a moisture content of 20%-30%. They also struggle with crude fiber materials, which tend to stick to the disc and produce uneven granules. Rotary drum granulators can process materials with moisture levels of 25%-40%. Leveraging the multi-directional force of the rotating drum, they can smoothly granulate composted straw, livestock manure, and other materials without the need for additional crushing or conditioning, streamlining the process.

The resulting product is more stable and meets standardized requirements. Due to the single direction of centrifugal force, disc granulators produce pellets with a roundness of 70%-80% and large particle size variations. Rotary drum granulators, on the other hand, utilize internal rollers to guide and rotate the pellets, resulting in a fully rolling and shaping process with a roundness exceeding 90% and a precisely controlled particle size of 2-5mm. Furthermore, the granulation process is gentle, does not damage organic matter, and the pellets are of moderate strength. Transportation losses are 15%-20% lower than those from disc granulators.

Operation and maintenance are also simplified, resulting in lower long-term costs. Disc granulators require frequent manual adjustments of inclination and speed, resulting in wear and tear on the disc edges and requiring frequent replacement. Rotary drum granulators, on the other hand, utilize automated control to precisely adjust speed and feed rate, eliminating the need for manual oversight. The drum is constructed of wear-resistant stainless steel, resulting in a 40% lower failure rate and over 30% lower maintenance costs, resulting in superior long-term economics.

In summary, the advantages of the rotary drum granulator in terms of production capacity, raw material compatibility, finished product quality, and cost control make it ideally suited to the diverse needs of organic fertilizer production lines, making it an ideal choice for improving efficiency and competitiveness.

The core role of chain crushers in organic fertilizer production

Written by fertilizer production line on September 18th, 2025. Leave a comment

In the organic fertilizer production process, material crushing is a critical pretreatment step, and chain crushers, with their outstanding performance, are the preferred equipment for this purpose. Organic fertilizer raw materials often contain lumps or medium-hard impurities. Inadequate crushing can affect the efficiency of subsequent granulation and mixing processes, as well as the quality of the finished product. It can even lead to problems such as material jamming in the granulator and uneven granulation in the finished fertilizer.

Designed specifically for the characteristics of organic fertilizer, chain crushers can efficiently crush a wide range of organic fertilizer raw materials, including those with a certain degree of moisture and viscosity, addressing the clogging and incomplete crushing issues of traditional crushing equipment. High-speed rotating chains and hammers impact and shear the material, while an adjustable screen allows for easy control of the crushed material’s particle size, meeting the stringent fineness requirements of organic fertilizer production.

Furthermore, the equipment’s sturdy structure, with core components made of wear-resistant steel, can withstand long-term, intensive operation, minimizing production interruptions. This provides a strong guarantee for the stable operation of organic fertilizer production lines, helping companies improve the yield rate of finished fertilizers and production efficiency.

New Type Organic Fertilizer Granulator: High-Efficiency Equipment Empowering Multi-Sector Production

Written by fertilizer production line on September 16th, 2025. Leave a comment

In response to the need for industrial upgrading, the new type organic fertilizer granulator (models YSL-60 to YSL-150) was developed by the Agricultural Machinery Research Institute. Leveraging its accumulated experience in compound fertilizer processing and its unique mixing and granulation method, it has become a practical device for granule production in various fields.

In terms of core technology, the new type organic fertilizer granulator utilizes high-speed rotating stirring teeth to stir, impact, and tumble the mixed material within the granulation drum. Friction, centrifugal force, and the material’s viscosity aggregate the material into granules, eliminating the need for complex extrusion equipment and making it suitable for high-viscosity or fibrous materials. Performance parameters include a production capacity of 1-8 tons/hour, motor power of 37-90 kW, and granule diameter of 1-5 mm. The YSL-60 produces 1-2 tons per hour, making it suitable for small and medium-sized operations; the YSL-150 produces 5-8 tons per hour, making it suitable for large-scale production.

It has a wide range of applications. In the fertilizer sector, livestock and poultry manure, straw, and other materials can be transformed into organic, bio-organic, and compound microbial fertilizers, eliminating caking issues while preserving bacterial activity and producing medium and trace element fertilizers. In the chemical industry, it can be used to granulate sticky raw materials; in the pharmaceutical industry, it can process traditional Chinese medicine granules; and in the feed industry, it can produce livestock and aquatic feed, achieving a “one machine for multiple uses.”

The core advantages are significant. Granulated particles are round and uniform, with good flowability, and are less prone to clumping during storage and transportation. Operation is simple, requiring only training. The low motor power and operating costs make the equipment affordable, making it suitable for small and medium-sized enterprises. Furthermore, it preserves fertilizer activity, extending its shelf life to 8-12 months, promoting the recycling of organic waste and achieving both economic and environmental benefits.

Daily maintenance requires three key points: regular inspections: daily inspection of the feed mechanism and transmission system; weekly inspection of agitator tooth wear; monthly bolt tightening and motor temperature monitoring; cleaning the granulation drum after production; lubricating transmission components according to specifications, and timely replacement of worn parts to ensure stable equipment operation.

This new type organic fertilizer granulator, with its multiple advantages in technology, performance and application, is providing strong support for production upgrades in agriculture, chemical industry, medicine, feed and other fields.