What equipment is essential in the production line of cow manure organic fertilizer

fertilizer granulator Jan 2, 2025

The production line of cow manure organic fertilizer involves multiple processes, from raw material pretreatment to final product packaging, each of which requires specialized equipment support. The following is a list of the main equipment necessary to build a complete cow manure organic fertilizer production line:

1. Front end processing equipment

Collection and preliminary processing

Forklift/loader: used to collect fresh cow manure and transport it to the initial treatment area.

Screening machine: removes large debris such as plastic, stones, metal fragments, etc.

Fermentation preparation

Organic fertilizer grinder: Crush large pieces of cow manure and auxiliary materials (if applicable) to an appropriate size for better fermentation.

Organic fertilizer mixer: Mix cow manure with other organic materials such as straw, sawdust, rice husks, etc. to adjust the carbon nitrogen ratio and moisture content.

Fermentation treatment

Composting and turning machine: helps to ventilate cow manure during fermentation, maintain good oxygen supply, promote beneficial bacterial activity, and accelerate degradation.

Fermentation chamber/tunnel: provides a fermentation site, controls temperature and humidity, and ensures smooth anaerobic or aerobic fermentation.

Intermediate processing

dry

Organic fertilizer dryer: reduces the moisture content of fermented cow manure, making it easier to pelletize and store.

Organic fertilizer cooler: reduces particle temperature to prevent quality degradation caused by excessive heating.

Backend processing

Granulation

Organic fertilizer granulator (drum granulator, ring mold granulator, extrusion granulator, etc.): turns dried cow manure powder into granules of different specifications.

packing

Organic fertilizer screening machine: removes unqualified large particles or powders to ensure consistent product quality.

Organic fertilizer packaging machine: automatic weighing, filling, and sealing of organic fertilizer particles for easy sales and transportation.

Other auxiliary equipment

Deodorization system: processes harmful gases such as ammonia generated during fermentation to reduce environmental pollution.

Conveyor belt: connects various devices to ensure continuous and smooth operation of the production line.

Storage bin: Temporary storage of raw materials or finished products for batch management and logistics scheduling.

matters needing attention

The selection of each device should be based on specific production needs, material properties, production scale, and budget constraints. For example, large farms may require larger capacity and more efficient equipment, while small businesses may focus on cost-effectiveness and ease of operation. At the same time, environmental regulations are also an important factor that cannot be ignored, ensuring that the environmental standards of the production line meet the standards.

In addition, maintenance and upkeep are also key to the service life of equipment and the stability of the organic fertilizer production line. Regular inspections of equipment condition and timely replacement of vulnerable parts should be carried out to ensure the continuous and efficient operation of the production line.

The process flow of producing organic fertilizer from chicken farm manure

fertilizer granulator Jan 2, 2025

The process of converting chicken manure into organic fertilizer involves a series of complex steps aimed at transforming chicken manure into efficient, safe, and environmentally friendly fertilizer. The following is the basic process of making organic fertilizer from chicken farm manure:

1. Collection and preprocessing

Chicken manure collection: Regularly clean and collect fresh or air dried chicken manure from the chicken coop.

Preliminary screening: Remove large debris and non organic substances such as plastic bags, metal sheets, etc. to ensure the smooth progress of subsequent processes.

Adjusting moisture content: To determine the moisture content of chicken manure, it is usually necessary to adjust it to an appropriate level, generally recommended between 40% -60%, for subsequent fermentation and granulation.

2. Fermentation and decomposition

Composting preparation: Mix chicken manure with other organic matter (such as straw, rice husk, etc.) to create an aerobic composting environment, accelerate organic matter decomposition, and control pH and temperature to promote beneficial microbial activity.

Fermentation process: Maintain appropriate temperature and ventilation to raise the internal temperature of the chicken manure pile to 60 ℃~70 ℃, lasting for several days to weeks, effectively killing most bacteria, viruses, and parasitic eggs.

3. Adjustment and crushing

Pile turning: Regularly use an organic fertilizer pile turning machine to turn the chicken manure pile, ensuring sufficient oxygen, accelerating decomposition rate, and evenly dissipating heat.

Crushing: After fermentation is completed, the matured chicken manure material is crushed using an organic fertilizer grinder to achieve moderate particle size, which is conducive to granulation.

4. Add nutritional supplements

Detection and analysis: Conduct chemical composition analysis on fermented chicken manure to determine whether additional nutrients such as nitrogen, phosphorus, and potassium need to be added to balance the formula.

Mixing ingredients: Based on the test results, appropriate amounts of minerals, trace elements, etc. are mixed to improve the nutritional value of organic fertilizer.

5. Granulation and solidification

Granulation: Use organic fertilizer granulators, such as drum granulators, ring mold granulators, etc., to make the mixture into particles of a predetermined size.

Drying: Place the granulated organic fertilizer in a dryer to reduce moisture content, prevent mold growth, and extend shelf life.

6. Cooling and screening

Cooling: The particles are cooled by a cooler to near room temperature to maintain structural stability and avoid chemical reactions during storage.

Grading: Use a screening machine to remove unqualified large particles or powder residues, ensuring that the final product particles are uniform and consistent.

7. Packaging and Storage

Weighing packaging: Measure and package finished products according to market demand.

Storage management: Store properly in a cool and dry place to prevent moisture and insect infestations.

Through these meticulous steps, chicken manure from chicken farms can be efficiently converted into high-quality organic fertilizers, not only solving the problem of chicken manure treatment, but also providing valuable natural nutrients for agriculture, promoting the development of circular economy.

What is the working principle of the cow manure organic fertilizer granulator

fertilizer granulator Jan 2, 2025

The cow manure organic fertilizer granulator is mainly used to transform processed cow manure and other organic waste into neat and uniform granular fertilizers. Its working principle involves multiple physical processes such as material mixing, compression, and shaping. Different types and designs of granulators may vary, but the basic principles are similar. The following is an overview of the working principle of a general cow manure organic fertilizer granulator:

Drum granulator

The drum granulator is one of the most common equipment for granulating cow manure organic fertilizer, and its working principle is as follows:

Material entry: Pre treated cow manure and other organic materials (such as crushed, mixed, and moderately moist) are transported to the inside of the drum.

Rolling and mixing: The special design inside the drum, such as the tilt angle and internal cutting or spiral blades, allows the material to continuously roll and mix during rotation.

Adhesive and Agglomeration: Friction and slight pressure between wet materials cause small particles to adhere to each other, forming spherical or pebble shaped small aggregates.

Forming and maturity: With the passage of time and the continuous rotation of the drum, small particles continue to adsorb loose materials around them, gradually increasing until they reach the desired diameter.

Discharge and screening: The formed particles are discharged from one end of the drum, and larger particles are reintroduced into the drum for further grinding, while smaller particles are screened to ensure uniform particle size.

Ring mold granulator

The ring mold granulator is particularly suitable for producing hard or high-density organic fertilizer particles, and its working principle is as follows:

High pressure compression: The material is forcibly fed between the annular mold and the pressure roller. Due to the tight fit between the high-speed rotating pressure roller and the stationary annular mold, a huge extrusion force is generated.

Plastic deformation: Under high pressure, the material is forced to pass through the smaller pores of the mold, and the air in the material is expelled. The material undergoes plastic deformation, forming cylindrical particles.

Cutting and Forming: Once the particles pass through the mold, they are cut into the required length by the cutting blade and then fall into the cooling device to reduce the stress caused by thermal expansion and contraction and prevent particle breakage.

Squeezing granulator

Squeezing granulator is suitable for materials with low moisture content and not easy to agglomerate. Its principle is similar to that of ring die granulator, but its design is different. It mainly relies on screws or pistons to push the material through the mold and achieve molding.

The above three types of granulators each have their own characteristics, and the choice depends on the characteristics of the raw materials, the expected particle shape, and production capacity. The design of the cow manure organic fertilizer granulator aims to optimize granulation efficiency while preserving the nutritional components of organic materials as much as possible, providing high-quality fertilizers for agricultural production.

What is the investment prospect of the cow manure organic fertilizer production line

fertilizer granulator Jan 2, 2025

The investment prospects of the cow manure organic fertilizer production line mainly depend on multiple factors, including market demand, government policies, technological progress, increased awareness of environmental protection, and changes in agricultural production methods. In recent years, with the increasing global demand for sustainable agriculture and environmental protection, the demand for organic fertilizers from cow manure has shown a growing trend, demonstrating positive investment potential. Below we will analyze in detail several key aspects:

Market demand growth

Agricultural transformation: The excessive use of traditional fertilizers has led to soil degradation, and more and more farmers are turning to organic farming, seeking more environmentally friendly and sustainable farming methods, which directly promotes the development of the organic fertilizer market.

Consumer preference changes: People are increasingly concerned about food safety and health, and tend to purchase pollution-free, organic certified agricultural products, which in turn stimulates the demand for organic fertilizers.

Export opportunities: The increasing demand for high-quality organic products in the international market provides a vast overseas market for Chinese organic fertilizer producers.

Policy support

Subsidies and Incentives: The Chinese government has introduced multiple policies to encourage organic agriculture and organic fertilizer production, such as providing financial subsidies, tax reductions, and other measures, which have reduced the initial investment and operating costs of enterprises.

Environmental regulations: Strict pollution control regulations have prompted livestock and poultry farming to seek effective waste disposal solutions, and organic fertilizer from cow manure has become an ideal solution.

technological innovation

Efficient fermentation technology: The new fermentation technology has improved the conversion efficiency of cow manure, shortened the production cycle, and reduced production costs.

Intelligent equipment: The application of automated and intelligent organic fertilizer production lines greatly improves production efficiency, reduces manual dependence, and enhances competitiveness.

environmental protection

With the increasing public awareness of environmental protection, using organic fertilizers instead of some chemical fertilizers can help reduce the emission of chemical pollutants, protect the ecological environment, and conform to the development direction of green agriculture.

The process of agricultural modernization

Currently, China is actively promoting agricultural modernization, with the gradual popularization of large-scale and intensive agricultural production models, and the increasing demand for high standard and high-quality organic fertilizers.

Despite many favorable factors, investors also need to pay attention to issues such as intensified market competition, high initial investment, and long production cycles. The key to success lies in grasping industry trends, planning project scale reasonably, focusing on technology research and development and brand building, and establishing stable sales channels. In summary, the production line of cow manure organic fertilizer shows promising investment prospects in the current environment, but careful risk assessment and comprehensive strategies need to be formulated.

The advantages of rotary drum granulator in NPK fertilizer production line

fertilizer granulator Jan 2, 2025

The application of rotary drum granulator in NPK (nitrogen phosphorus potassium) fertilizer production line has demonstrated many technological and economic advantages, making it an indispensable part of NPK fertilizer manufacturing. The following points elaborate on the main advantages of the rotary drum granulator:

1. Efficient granulation

Uniform particle size: The rotary drum granulator can generate very uniform particles, which helps improve the accuracy of fertilization, reduce waste, and also enhance the appearance quality of fertilizers

High strength granules: NPK fertilizer granules that have been granulated have high compressive strength, are not easily broken, are easy to transport and store over long distances, and reduce losses.

2. Large scale production capacity

Continuous production: The rotary drum granulator can achieve continuous and large-scale production mode, which is very suitable for the needs of modern large-scale fertilizer factories and effectively improves production efficiency.

Scalability: The drum size and configuration can be adjusted according to production needs, making it easy to cope with upgrades or expansions of production lines of different scales.

3. Easy to control and adjust

Parameter adjustment: The speed, tilt angle, filling rate and other parameters of the drum can be finely adjusted to adapt to different raw material characteristics and target particle specifications, ensuring high-quality granulation effect.

Automated operation: Most rotary drum granulators are equipped with advanced automation control systems, which simplify the operation process, reduce labor costs, and ensure production consistency and reliability.

4. Cost effectiveness

Low energy consumption: Compared to some other granulation methods, the rotary drum granulator consumes less energy during operation, which helps to save operating costs.

High utilization rate of raw materials: The fine powder generated during the granulation process can be recycled into the granulation cycle through the recycling system, reducing the waste of raw materials and improving economic benefits.

5. Environmentally friendly

Dust control: The enclosed granulation environment reduces dust flying, protects the working environment, and is beneficial to employee health and the surrounding ecology.

Wastewater treatment: The wastewater generated during the granulation process can be recycled and reused, reducing water resource consumption and minimizing environmental impact.

In summary, the rotary drum granulator has brought an efficient, reliable, and economical granulation solution to the NPK fertilizer production line, which not only improves the quality of fertilizer products but also promotes the sustainable development of the entire industry. Against the backdrop of increasing emphasis on environmental protection and efficient resource utilization, the application prospects of rotary drum granulators are very broad.

How to choose a suitable organic fertilizer granulator for chicken farms

fertilizer granulator Jan 2, 2025

Choosing the appropriate organic fertilizer granulator for chicken farms is a key step in achieving the resource utilization of chicken manure. Reasonable selection can not only improve production efficiency, but also ensure product quality and create more economic benefits. Here are a few key factors for reference:

1. Evaluate the characteristics of chicken manure

Moisture content: The initial moisture content of chicken manure is relatively high, usually between 60% and 80%. It is necessary to consider whether there is a pre drying equipment or adjust the moisture content to a suitable level for granulation (about 30%).

Particle requirements: Determine the desired size, shape (circular, elliptical, elongated, etc.), and hardness parameters of the organic fertilizer particles to be produced, which directly affect the selection of pelletizer models.

2. Production scale

Capacity demand: Based on the daily/monthly/annual processing of chicken manure in the chicken farm, estimate the theoretical production capacity of the organic fertilizer granulator, leaving a certain margin to cope with seasonal changes or unexpected situations.

Space limitations: Consider the installation space that chicken farms can provide, including whether they have sufficient area and height, as well as power supply capacity.

3. Technical performance

Energy consumption indicators: Pay attention to the power consumption, steam consumption, etc. of the granulator, select products with high energy efficiency, and lower long-term operating costs.

Automation level: Modern organic fertilizer granulators are often equipped with intelligent control systems. The higher the automation level, the easier the operation, the less manual intervention, and the relatively low failure rate.

4. Brand and after-sales service

Brand reputation: Choose a reputable and experienced enterprise in the industry, whose product quality and service are more guaranteed.

After sales service: Confirm whether the supplier can provide timely technical support and spare parts supply, as well as the specific content of the warranty policy.

5. Regulations and Certification

Compliance with standards: Ensure that the selected model meets local environmental regulations and technical standards, such as noise emission limits, exhaust emission standards, etc.

Safety certification: Check whether it has the necessary safety certification marks, such as CE, ISO9001, etc., to prove its manufacturing quality and safety.

6. Comprehensive consideration

Field visit: If conditions permit, personally visit the site of the manufacturer or similar users to intuitively experience the operation status and actual effect of the machine.

Cost benefit: Based on a comprehensive comparison of initial investment, operating expenses, and potential profits, develop a budget and select the most cost-effective solution.

Through the above steps, chicken farms can choose the most suitable organic fertilizer granulator for their own needs, effectively convert chicken manure, promote circular economy, and enhance overall economic benefits.

The process and advantages of processing fertilizers on the cow manure organic fertilizer production line

fertilizer granulator Jan 2, 2025

The cow manure organic fertilizer production line is an important way to convert cow manure into high-quality organic fertilizer, which not only recovers agricultural by-products but also improves soil quality and promotes crop growth. Below is a detailed introduction to the processing flow and advantages of cow manure organic fertilizer:

Processing flow

Raw material collection and pretreatment

Collect fresh cow manure and transport it to the pre-treatment area using tools such as forklifts.

Use a screening machine to remove solid debris such as stones, metal sheets, etc.

Add auxiliary materials as needed, such as straw, sawdust, husks, etc., to adjust the C/N ratio and moisture, which is beneficial for microbial activity.

Fermentation treatment

Put the pre treated cow manure into a fermentation tank or tank, add an appropriate amount of biological fermentation agent, and start aerobic fermentation.

Regularly use an organic fertilizer turning machine to ensure a fully uniform fermentation process and accelerate the decomposition rate of organic matter.

Drying and sieving

After a period of fermentation, cow manure will turn into dark brown decomposed organic matter.

Use a dryer to dry the fermented cow manure to a suitable humidity, usually around 10% -30%, for easy granulation and storage.

Separate large impurities through a screening machine to ensure the quality of the finished product.

Granulation and Forming

Use organic fertilizer granulators (such as drum granulators, ring mold granulators, etc.) to turn dried cow manure powder into granules.

Secondary screening may be required to ensure consistent particle size and aesthetic appearance.

Packaging and Storage

The final product is packaged by a measuring and packaging machine and ready for sale or direct application.

advantage

Resource recycling: As an agricultural byproduct, cow manure is converted into organic fertilizer, achieving waste resource utilization and reducing environmental pollution.

Improving soil structure: Organic fertilizers are rich in organic matter, which can increase the soil’s ability to retain water and nutrients, and improve soil physical properties.

Improve crop yield: Provide abundant nutrients such as nitrogen, phosphorus, potassium, etc., promote healthy plant growth, and increase agricultural product yield.

Eco friendly: Compared to chemical fertilizers, organic fertilizers release fewer greenhouse gases, have less impact on ecosystems, and are more environmentally friendly.

Economic value: Turning waste into treasure, increasing farmers’ income channels, and promoting rural economic development.

Through scientific and rational process flow and advanced production equipment, the cow manure organic fertilizer production line can not only increase the added value of fertilizers, but also contribute to sustainable agricultural development, and is an important component of modern agricultural circular economy.

How does the conversion granulator granulate in the NPK fertilizer production line

fertilizer granulator Jan 2, 2025

The rotary drum granulator plays a crucial role in the NPK fertilizer production line, as it completes the granulation process of NPK compound fertilizer through an efficient wet granulation technology. The following are detailed granulation steps and principles:

Introduction to NPK Fertilizer

NPK fertilizer refers to a compound fertilizer containing three main nutrients: nitrogen (N), phosphorus (P), and potassium (K). It is widely used in crop cultivation to improve soil fertility and crop yield.

Working principle of rotary drum granulator

The core of a rotary drum granulator is a large drum shaped container that is tilted and slowly rotated, filled with the material to be granulated inside. This device utilizes a combination of centrifugal force and frictional force to promote the collision and agglomeration of materials during continuous rolling, ultimately forming uniform spherical particles.

Specific granulation steps

Raw material mixing: Firstly, accurately measure and thoroughly mix the pre proportioned basic fertilizer raw materials such as urea, diammonium phosphate (DAP), potassium chloride, etc. to ensure accurate distribution ratio.

Wetting and spraying: The mixed powdered raw materials are fed into a rotary drum granulator, while introducing an appropriate amount of water or other liquid binders to increase the adhesion between the materials.

Rolling forming: Under the slow rotation of the drum, the material begins to roll and gradually gather and increase, forming small balls with initial shape through the collision and aggregation between particles.

Growth and development: By adjusting the speed, angle, and time of the drum, the movement trajectory and dwell time of the material inside the drum are controlled, so that the small ball gradually grows to the required particle size.

Solidification: Heating may occur during the granulation process to help evaporate water and further enhance the stability of the particles; It is also possible to promote particle hardening by spraying a small amount of water vapor before discharging.

Cooling and screening: Finally, the particles are cooled down by a cooling tower and then separated into qualified products through a vibrating screen. Unqualified products are returned to the granulation area for reprocessing.

Key technical points

Material ratio: Ensure precise mixing of each component to achieve ideal fertilizer efficiency.

Adhesive selection: Reasonably select adhesives that promote particle formation without affecting fertilizer efficiency.

Controlling humidity: Moderate humidity is crucial for particle formation, as too high or too low can affect the quality of granulation.

Drum parameter tuning: including speed, tilt angle, filling rate, etc., directly affecting the size, strength, and appearance of particles.

Through careful design and precise regulation, the rotary drum granulation machine can produce uniform and sturdy NPK fertilizer particles, which not only improve the convenience of fertilizer storage and transportation, but also ensure the uniform application of nutrients, maximize fertilizer efficiency, and promote healthy crop growth.

Harmless treatment of livestock manure by organic fertilizer granulator and reuse

fertilizer granulator Jan 2, 2025

The organic fertilizer granulator plays a key role in the process of treating manure in aquaculture farms, effectively achieving harmless treatment and resource utilization of manure. Below is a detailed introduction to how the organic fertilizer granulator achieves this goal:

1. Reduce environmental pollution

Biological deodorization: In the early stage of organic fertilizer granulation, microbial agents are added to accelerate fecal fermentation, which can effectively degrade harmful gases such as ammonia and hydrogen sulfide, reduce odors, and minimize negative impacts on the environment.

Solid liquid separation: using solid-liquid separation technology, the liquid part is used for sewage treatment, and the solid part is used as granulation raw material, avoiding the waste of water resources and reducing the possibility of water pollution.

2. Kill pathogens

High temperature fermentation: During the composting process, natural heating or a heating system is used to raise the internal temperature of the feces to above 70 ° C for several days, which can effectively kill most pathogens, parasite eggs, and other harmful microorganisms, ensuring the safety of the product.

3. Enhance nutritional value

Nutritional balance: By mixing different types of organic waste, such as cow manure, chicken manure, pig manure, and plant residues, the organic fertilizer processed by the granulator is nutritionally comprehensive, rich in essential plant elements such as nitrogen, phosphorus, and potassium, as well as various trace elements and active substances, which are more conducive to crop absorption.

Stabilization treatment: Organic fertilizers that have undergone sufficient fermentation release nutrients slowly and persistently, avoiding soil salinization problems that may arise from one-time large-scale fertilization.

4. Promote ecological cycle

Closed loop: The organic fertilizer granulator promotes the recycling of livestock and poultry manure, reduces dependence on external fertilizers, lowers the environmental pressure of agricultural production, and helps build a healthy ecosystem.

5. Economic value

Value added conversion: Feces, which were originally considered waste, are processed into high value-added products through granulators, increasing farmers’ sources of income.

Replacing traditional fertilizers: Organic fertilizers can completely or partially replace fertilizers in some cases, reducing fertilizer input and helping to lower costs in the long run.

Practical application

Many large farms at home and abroad have widely used organic fertilizer granulators to treat manure, such as ranches in the Netherlands, Germany, and other places. There are also many successful cases in China. For example, a certain agricultural technology enterprise in Jiangsu has adopted advanced organic fertilizer granulation technology and equipment to convert chicken manure from local farms into organic fertilizer. This not only solves the problem of environmental pollution, but also forms a virtuous cycle system of “planting and breeding integration”, achieving dual economic and ecological benefits.

In summary, the organic fertilizer granulator has made important contributions to the sustainable development of agriculture by not only treating manure from breeding farms, but also achieving harmless and resourceful treatment through a series of scientific methods.

What kind of organic fertilizer granulator is commonly used in the fertilizer production line

fertilizer granulator Jan 2, 2025

In the production line of cow manure organic fertilizer, choosing the appropriate type of granulator directly affects the quality and production efficiency of the organic fertilizer. Considering the characteristics of cow manure, such as high moisture content and abundant cellulose, the following granulators are commonly used in the production of organic fertilizers from cow manure:

1. Drum granulator

The drum granulator is one of the most commonly used granulation equipment in the production of cow manure organic fertilizer. It naturally aggregates materials into balls under the combined effect of its own gravity and rotational force through a rotating drum and a suitable moist environment. The granulation process of this model is mild, especially suitable for processing high moisture raw materials such as fresh cow manure. In addition, by adjusting the angle and speed of the drum, the size and density of particles can be flexibly controlled.

2. Ring mold granulator

Ring mold granulator, also known as flat mold granulator, is suitable for processing various organic materials, including cow manure. Its working principle is to mix cow manure and other additives, and then extrude them from the micropores of the mold through high-pressure extrusion, forming a strip shape, which is then cut into particles. The particles formed by this method have a regular shape and high hardness, making them suitable for long-distance transportation and long-term storage.

3. Extrusion granulator

Squeezing granulator is suitable for processing materials containing a large amount of cellulose and high humidity, such as insufficiently dehydrated cow manure. This machine uses a powerful hydraulic system to forcefully squeeze materials out of the mold pores, forming dense particles that reduce the cost of later drying and can retain the active ingredients in cow manure to a certain extent.

4. Disc granulator

The disc granulator is another effective method, especially when dealing with small-scale production. Cow manure rolls on the inclined disc surface, and under the action of centrifugal force and its own gravity, the material gradually aggregates into spherical particles. This granulation method has good granulation effect, especially when the humidity of the raw materials is moderate.

Choose Suggestions

When choosing a cow manure organic fertilizer granulator, the following factors should be considered comprehensively:

Raw material characteristics: moisture content, fiber content, particle size, etc;

Capacity demand: expected daily or annual production;

Particle size: desired particle size and shape preference;

Budget constraints: consideration of equipment investment and operation and maintenance costs;

Environmental protection: whether low energy consumption and low emission solutions are needed;

Considering the specific characteristics of cow manure, it is recommended to give priority to drum granulators and ring mold granulators, both of which can effectively cope with the high moisture problem of cow manure while ensuring the granulation effect. Select the most suitable type of granulator based on the specific production scale and budget. In practice, it may be necessary to combine multiple granulation techniques and equipment to achieve optimal product quality and highest production efficiency.