Author: organic fertilizer production line

Converting cow manure into granular organic fertilizer usually requires the use of a complete organic fertilizer production line, which includes multiple steps aimed at transforming raw cow manure into nutrient rich and stable granular fertilizer. The following is the specific processing flow and the main equipment required:

Collection and pretreatment of cow manure

Firstly, collect fresh or slightly dried cow manure from pastures or farms. Subsequently, preliminary screening and crushing are carried out to remove large debris and coarse hard objects, ensuring the smooth operation of subsequent processing machinery.

Solid-liquid separation

If the moisture content of cow manure is high, solid-liquid separation should be carried out first. This step can be carried out by using a screw extruder or centrifugal dewatering machine, with the aim of reducing the moisture content of cow manure for subsequent fermentation and granulation processes.

fermentation

This is one of the most critical steps, which involves adding appropriate microbial fermentation agents and placing cow manure into a fermentation tank or using a trough type turner for dynamic fermentation. This process converts organic matter in cow manure into easily absorbable forms, eliminates pathogens and weed seeds, and generates beneficial microbial communities. The fermentation time is generally several weeks, depending on the environmental conditions and fermentation technology.

smash

After fermentation, the cow manure is sent to an organic fertilizer grinder for crushing, which facilitates subsequent mixing and granulation. Common crushing equipment includes chain crushers, cage crushers, etc., which can crush fermented cow manure to a particle size suitable for granulation.

blend

In order to adjust the nutritional composition and improve the physical properties, it is necessary to add other organic matter or minerals, as well as trace elements, to the ground cow manure. Use a mixer to evenly mix these ingredients, ensuring consistency in the quality of each batch of fertilizer.

Granulation

Use an organic fertilizer granulator to process the mixed material into granules. There are various types of granulators, including drum granulators, disc granulators, and flat die granulators. The choice of type of granulator depends on factors such as raw material characteristics, required particle shape and size.

Drying and Cooling

Newly granulated fertilizers often have high humidity and need to be dried to the appropriate moisture content using a dryer. Then, the granules are cooled down using a cooling machine to prevent clumping and spoilage.

Screening and coating

Finally, use a screening machine to classify the particles by size, and any unqualified particles will be reprocessed. For some high-end products, a coating machine can also be used to cover a layer of film on the surface of the particles to improve the waterproof and slow-release effect of the fertilizer.

packing

Qualified organic fertilizer particles are weighed, packaged, labeled, and ready for sale using an automatic quantitative packaging machine.

Throughout the entire production process, it is also necessary to pay attention to environmental issues, such as installing dust removal equipment to reduce dust pollution, and treating wastewater generated during the production process with a wastewater treatment system to ensure the environmental compliance of the entire production line. Through the above steps, seemingly insignificant cow manure has been transformed into organic fertilizers with commercial value, which not only improves resource utilization but also promotes sustainable agricultural development.

The equipment configuration of a small-scale organic fertilizer production line designed for breeding farms should not only consider the high efficiency of waste resource utilization, but also pay attention to cost-effectiveness and environmental protection requirements. The following is a typical equipment configuration scheme for small-scale organic fertilizer production lines, especially suitable for small and medium-sized farms such as poultry or pig farms:

1、 Preprocessing equipment

Solid waste separator: used to separate the liquid portion from aquaculture waste, reduce the moisture content in subsequent processing stages, and improve efficiency.

Crusher: Grind the separated solid waste (such as chicken manure and pig manure) for easy mixing and fermentation.

2、 Fermentation equipment

Static stack fermentation system: suitable for small farms, assisted by natural ventilation and self-propelled turntables for biological fermentation.

Self propelled flipping machine: used for flipping and ventilation during stack fermentation, accelerating the fermentation process, improving fermentation quality and efficiency.

3、 Granulation and molding equipment

Granulator: The fermented organic material is processed into granules by an organic fertilizer granulator for easy storage, transportation, and use.

According to the actual situation, different types such as disc granulator and extrusion granulator can be selected.

4、 Post processing equipment

Drying machine: used for drying granules to ensure that the finished organic fertilizer reaches the appropriate moisture content.

Screening machine: Screen out particles that are too large or too small to ensure the uniformity of the product.

Packaging machine: Packaging finished organic fertilizers according to certain specifications for easy sales and storage.

5、 Auxiliary equipment and facilities

Conveying equipment: such as screw conveyors or belt conveyors, used for the transportation of materials.

Warehousing and logistics facilities: including raw material warehouses, finished product warehouses, and necessary handling tools.

6、 Control system

Automated control system: integrates temperature and humidity monitoring and control functions, optimizes the fermentation process, and improves product quality and consistency.

Configuration precautions

Environmental requirements: Ensure that the design and operation of the production line comply with local environmental regulations, such as waste gas, wastewater treatment, and noise control.

Energy efficiency: Prioritize equipment with low energy consumption and stable performance, and consider using clean energy sources such as solar power.

Flexibility: Considering the possibility of future business expansion, reserve appropriate adjustment space for later upgrades or renovations.

In summary, the equipment configuration of a small-scale organic fertilizer production line suitable for breeding farms should comprehensively consider the characteristics of raw materials, production goals, and environmental conditions, striving to find the best balance between cost control and product quality. Through scientific and rational equipment combination and process design, not only can the problem of livestock waste be effectively solved, but additional economic benefits can also be created, promoting the development of green circular agriculture.

The chicken manure organic fertilizer crusher plays a crucial role in the fertilizer production line, as it is the key first step in converting collected chicken manure raw materials into usable organic fertilizers. This machine makes chicken manure easier to mix, ferment, and pelletize through fine grinding and crushing, greatly improving the efficiency of the entire production process and product quality. The following is a detailed introduction to the application of chicken manure organic fertilizer crusher in fertilizer production line:

Principles and working methods

Chicken manure organic fertilizer crushers usually use high-speed rotating blades or drum impact to crush chicken manure. When chicken manure enters the crushing chamber, it is crushed into smaller particles or powders by the force of high-speed rotating components. Some models are also equipped with screens to filter out larger fragments that do not meet the required particle size, ensuring that the output chicken manure particles are of consistent size and meet the needs of subsequent processes.

Application steps

Raw material pretreatment: Before entering the organic fertilizer crusher, chicken manure may need to undergo solid-liquid separation and preliminary drying to reduce its initial moisture content and avoid the formation of mud like substances during the crushing process, which may cause blockage or reduce crushing efficiency.

Crushing and processing: Pre treated chicken manure is sent to an organic fertilizer crusher for chicken manure, where it is cut or crushed at high speed to become fine particles. Crushed chicken manure is easier to mix and ferment because its surface area increases, which is beneficial for microbial attachment and metabolic activity.

Subsequent processing: Crushed chicken manure can be directly used to mix other organic or inorganic components for fermentation treatment; It can also be used as one of the raw materials to participate in the granulation process, forming granular organic fertilizers that are easy to store, transport, and apply.

Key advantages

Improving production efficiency: The use of organic fertilizer crushers for chicken manure significantly accelerates the pre-treatment speed of raw materials, providing high-quality basic materials for subsequent fermentation and granulation.

Ensuring product quality: The crushing process helps to remove impurities such as feathers, bones, and other non organic matter from chicken manure, while ensuring the uniformity of particle size, which is very beneficial for the uniform application of the final fertilizer and plant absorption.

Simplified operation process: The highly automated crusher reduces the need for manual intervention, lowers production costs, and improves the overall operational efficiency of the production line.

matters needing attention

Although the application of organic fertilizer crushers for chicken manure on production lines has brought many conveniences, the following points should be noted in practical operation:

Regular maintenance: The cutting tools or rollers of the crusher may wear out after long-term use and need to be checked and replaced regularly to maintain the crushing effect.

Safe operation: When operating the crusher, follow the manufacturer’s safety instructions, wear appropriate protective equipment, and prevent accidental injuries.

Environmental considerations: Noise and dust will be generated during the crushing process, so sound insulation and dust prevention measures should be taken to reduce the impact on the surrounding environment.

Overall, the application of chicken manure organic fertilizer crushers in fertilizer production lines not only solves the problem of chicken manure treatment, but also promotes the green development of the organic fertilizer industry, and is an important component of modern agricultural production and circular economy practices.

The process of producing organic fertilizer from chicken manure involves a series of delicate and systematic technological steps, from the initial collection of chicken manure to the packaging and delivery of the final organic fertilizer product, the entire process is called the organic fertilizer production line. The following are the main steps in producing organic fertilizer from chicken manure:

Chicken manure collection and initial treatment:

Collection: Collect fresh or dry chicken manure from the farm in a timely manner to avoid long-term accumulation that can cause odor and bacterial growth.

Preliminary screening: Remove non organic impurities such as plastics, stones, or other foreign objects from chicken manure to protect subsequent processing equipment from damage.

Solid liquid separation (suitable for chicken manure with high water content):

Using equipment such as spiral extruders or centrifugal dehydrators, the liquid and solid in chicken manure are separated to obtain dry chicken manure cake as raw material for subsequent processing.

Chicken manure crushing:

After drying, chicken manure is crushed by equipment such as chain crushers, hammer crushers, or cage crushers to turn it into small particles or powders for further fermentation and mixing.

Fermentation:

Mix the crushed chicken manure with other auxiliary materials (such as rice husk, straw powder, etc.) in proportion, add microbial fermentation agents, conduct high-temperature composting fermentation, decompose harmful substances, kill pathogens and parasite eggs, and generate beneficial microbial communities to improve fertilizer quality.

Flipping:

During the fermentation process, equipment such as trough type flippers or track type flippers are used to regularly flip materials to ensure oxygen supply, maintain appropriate temperature and humidity, promote microbial activity, and accelerate the fermentation process.

Screening:

After fermentation is completed, use vibrating screens and other equipment to screen the materials, remove large particles or incompletely decomposed residues, and ensure the uniformity and quality of the finished fertilizer.

Secondary crushing and mixing:

Grind the screened fertilizer again to achieve finer particle size; Then mix it thoroughly with appropriate additives (such as trace elements, humic acid, etc.) to adjust the proportion of nutrients and meet the specific needs of crops.

Granulation:

Use equipment such as drum granulators and extrusion granulators to make the mixed fertilizer powder into spherical or cylindrical particles, improving the convenience and aesthetics of fertilization.

Drying and cooling:

Freshly produced fertilizer granules are dried to remove excess moisture, and then cooled down using a cooling machine to prevent mold and spoilage during storage.

Grading and packaging:

Classify according to particle size, and return non-conforming products to the previous stage for reprocessing; Qualified products will be automatically measured, bagged, sealed and packaged for sale.

Quality inspection and storage:

The finished organic fertilizer needs to undergo strict quality inspection to ensure compliance with national standards; By implementing reasonable warehouse management, we can prevent secondary pollution and ensure the freshness and activity of our products.

Through this rigorous and orderly production process, chicken manure can be transformed into high-quality organic fertilizer, which not only realizes waste resource utilization, but also provides a green and healthy source of fertilizer for agricultural production, promoting the development of ecological agriculture.

The process of processing manure and organic fertilizer in a small-scale organic fertilizer production line mainly includes several key steps: raw material pretreatment, fermentation, post-treatment, and finished product packaging. Below is a detailed introduction to this series of operational procedures:

1. Raw material pretreatment

Collection and classification: Firstly, it is necessary to collect animal manure from the farm, such as chicken manure, pig manure, or cow manure. For feces containing a large amount of padding or feed residue, they should be classified and screened first to remove impurities.

Crushing and mixing: Using a grinder to break down feces into small particles can help speed up fermentation. Afterwards, the crushed feces are mixed with other auxiliary materials such as straw powder and sawdust, and the C/N ratio (carbon nitrogen ratio) is adjusted to promote microbial activity and improve fermentation efficiency.

2. Fermentation

Fermentation method: Small organic fertilizer production lines often use a stack fermentation method, which involves stacking pre treated raw materials into strips and regularly flipping them through a self-propelled turner to maintain sufficient oxygen supply and uniform temperature. Fermentation tanks can also be used for closed fermentation, making it easier to control temperature and humidity.

Inoculate fermentation bacteria: Add specialized fermentation agents, such as high-temperature cellulose bacteria and fungi, to the raw materials. They can quickly decompose organic matter, produce high temperatures, and kill pathogens and weed seeds.

Fermentation cycle: The fermentation cycle varies depending on the conditions and generally lasts from 7 days to several weeks. During the fermentation process, the internal temperature of the raw materials can rise to 50 ℃~70 ℃, which helps with sterilization and maturation.

3. Post processing

Stacking and cooling: After fermentation is complete, use a turner to pile up the fermented raw materials and gradually cool them to room temperature.

Granulation: The cooled organic fertilizer is processed into granules by a granulator for easy storage and transportation. Disk granulator, extrusion granulator and other types can be selected.

Drying and screening: Granular organic fertilizer also needs to be dried to remove excess moisture, and then screened by a screening machine to obtain fertilizer particles of qualified size.

4. Finished product packaging

Measurement packaging: Use an automatic measurement packaging machine to quantitatively package the screened organic fertilizer particles. Common packaging specifications include 25kg and 50kg bags.

Finished product inspection: Before packaging, quality inspection of the finished product is required to confirm that all indicators meet the standards, such as organic matter content, pH value, moisture content, etc.

Storage and sales: Organic fertilizers that have passed inspection are stored and waiting for distribution or direct sales to farmers and gardening enthusiasts.

matters needing attention

Throughout the entire production process, it is necessary to pay attention to environmental hygiene, avoid pollution, and make reasonable use of water resources, save electricity, and achieve green production. In addition, for large or continuously produced small organic fertilizer production lines, exhaust gas treatment and wastewater treatment systems should also be equipped to ensure that the production process meets environmental standards.

Through the above series of detailed operational processes, small-scale organic fertilizer production lines can convert manure that was originally considered waste into valuable organic fertilizers, which not only solves environmental pollution problems but also promotes sustainable agricultural development.

The self-propelled turner plays a core role in the process of fermenting cow manure to process organic fertilizers. It can effectively promote aerobic fermentation process, improve fermentation efficiency and the quality of organic fertilizers. The following is a detailed explanation of how self-propelled turntables can be applied to cow manure fermentation:

Pre treatment of cow manure

Firstly, fresh cow manure needs to undergo certain pretreatment processes, such as solid-liquid separation (if the moisture content is too high), preliminary drying, and mixing with other auxiliary materials (such as straw, corn stalks, etc.), to adjust the C/N ratio and create conditions suitable for microbial growth.

Fermentation tank preparation

Next, spread the pre treated cow manure in the pre prepared fermentation tank. The fermentation tank can be a fixed concrete structure or a temporary ground platform, with a width generally designed to match the self-propelled flipping machine for mechanical operation.

Fermentation begins

After the cow manure is laid, add an appropriate amount of fermentation bacteria and start the fermentation process. These bacterial strains can decompose organic matter, release heat, raise the temperature of the fermentation pile, thereby killing potential pathogens and parasite eggs, while promoting the conversion of organic matter.

The function of self-propelled flipping machine

Flipping and ventilation: This is the most important task of a self-propelled flipping machine. Every once in a while (usually a few days), the flipping machine travels along the fermentation tank, flipping the cow manure at the bottom of the fermentation pile to the top and the cow manure at the top to the bottom. The purpose of doing this is to introduce fresh air, provide sufficient oxygen for microorganisms, maintain aerobic fermentation conditions, and also help achieve uniform distribution of temperature and humidity.

Monitoring temperature: During the fermentation process, self-propelled turntables are usually equipped with temperature sensors to monitor the temperature of the fermentation pile. If the temperature exceeds the set value, it indicates that the central area may be oxygen deficient or overheated during fermentation. At this time, it is necessary to promptly flip the pile to dissipate heat and prevent excessive fermentation from causing excessive decomposition of organic matter.

Post processing

After fermentation is completed, that is, when the temperature of the fermentation pile drops to near ambient temperature, the fermentation process is basically over. At this point, the mature organic fertilizer can be transferred to the storage area through a self-propelled turner for further aging and ripening to improve the stability of the fertilizer.

Finished product processing

Finally, organic fertilizers that have been fully fermented and matured can be processed into granular or other forms of organic fertilizer products through screening, granulation, drying, and other subsequent processes, which are convenient for packaging, storage, and application.

In short, the self-propelled turner plays a dynamic role in the fermentation process of cow manure, ensuring the effectiveness and controllability of the fermentation process through its functions such as turning, ventilation, and temperature control. It is an indispensable equipment for the industrial production of organic fertilizers.

As a rich organic resource, cow manure is processed into granular organic fertilizer through an organic fertilizer granulator. Compared with traditional composting or simple drying, it has many advantages. It not only improves resource utilization efficiency, but also has a positive impact on environmental protection and agricultural production. The following are several main advantages of using an organic fertilizer granulator to process organic fertilizer from cow manure:

Improving fertilizer quality:

Nutritional balance: By adding various organic and inorganic components, the organic fertilizer processed by the organic fertilizer granulator can provide various nutrients needed for plant growth, such as nitrogen, phosphorus, potassium, and other trace elements, which is beneficial for the comprehensive and healthy growth of crops.

Good stability: Granular fertilizers are not easily decomposed and can slowly release nutrients in the soil, avoiding nutrient waste or environmental burden caused by excessive supply at once.

Convenient storage, transportation, and application:

Reduced volume, easy to package: The organic fertilizer after granulation occupies less space, making it convenient for large-scale packaging, storage, and transportation.

Uniform application: Granular organic fertilizer facilitates mechanized sowing, avoiding the problem of powdery fertilizer easily drifting with the wind and improving fertilization efficiency.

Improving soil structure:

Enhance water retention and air permeability: Organic fertilizer from cow manure is rich in humic acid and cellulose, which can improve soil particle structure, enhance its water holding capacity and air permeability, and create a favorable growth environment for crop roots.

Promoting microbial activity: During the granulation process, a certain number of live microorganisms are retained, which reproduce in the soil and help decompose insoluble nutrients in the soil, further improving soil fertility.

Reduce environmental pollution:

Reduce greenhouse gas emissions: Compared to natural composting, industrially produced organic fertilizers can better control fermentation conditions and reduce greenhouse gas emissions such as methane.

Preventing soil erosion: While improving soil structure, enhancing soil erosion resistance helps prevent soil erosion caused by rainwater erosion.

Significant economic benefits:

Extended product lifespan: Granular organic fertilizer is resistant to storage, less prone to moisture absorption and solidification, prolongs the market sales cycle, and increases the income of farmers and producers.

Improving crop yield and quality: High quality organic fertilizers can significantly enhance crop yield and quality, thereby increasing farmers’ income.

Promoting sustainable agricultural development:

Reducing dependence on chemical fertilizers: The widespread use of organic fertilizers can help gradually replace chemical fertilizers, reduce agricultural non-point source pollution, and promote the transformation of agriculture towards green and low-carbon.

Circular Agriculture Model: The conversion of cow manure into organic fertilizer is a classic case of resource recycling between animal husbandry and agriculture, reflecting the harmonious unity of ecological balance and economic development.

In short, granular organic fertilizer made from cow manure through an organic fertilizer granulator not only breaks through the functionality of the fertilizer itself, but also demonstrates unique advantages in environmental protection, economic benefits, and social sustainable development, becoming an indispensable part of modern ecological agriculture development.

The small-scale organic fertilizer production line aims to convert various organic wastes into high-quality organic fertilizers, suitable for occasions such as farms, small agricultural enterprises, or family farms. The main equipment of this production line covers the entire process from raw material pretreatment to finished product packaging, ensuring the efficiency and standardization of organic fertilizer production. Here are some key equipment that make up a small-scale organic fertilizer production line:

1. Raw material pretreatment equipment

Crusher: Used to crush collected organic waste such as animal manure, crop residues, etc. into small particles for subsequent mixing and fermentation.

Solid liquid separator: If the moisture content of the raw material is high, this equipment can be used to remove excess moisture and improve fermentation efficiency.

Blender: used to mix different types of organic materials to ensure uniform composition and facilitate fermentation.

2. Fermentation equipment

Static stack fermentation system: using a self-propelled turner combined with a strip composting bed, promoting aerobic fermentation and accelerating the degradation of organic materials through regular flipping.

Fermentation tank: a closed fermentation container suitable for advanced fermentation processes that require precise control of temperature and humidity conditions.

3. Granulation and molding equipment

Granulator: Processing fermented organic matter into granules for easy storage, transportation, and use. Common ones include disc granulators, drum granulators, etc.

Drying machine: used to dry organic fertilizers after granulation, reduce moisture content, and improve shelf life.

4. Post processing equipment

Screening machine: Ensure that the particle size of the finished organic fertilizer is consistent and remove unqualified particles.

Coating machine (optional): Apply a protective film on the surface of the particles to enhance the moisture and corrosion resistance of the fertilizer.

5. Packaging and storage equipment

Automatic weighing and packaging machine: Quantitatively package organic fertilizers according to specified weight to improve packaging efficiency.

Stacking machine (optional): Automatic stacking of packaging bags, saving manpower and improving work efficiency.

6. Control and Management System

Automated control system: monitors and controls the temperature and humidity of fermentation, drying, and other processes to ensure stable and reliable production.

Environmental purification systems, such as dust removal devices and exhaust gas treatment equipment, ensure minimal environmental pollution during the production process.

These devices together form a small and comprehensive organic fertilizer production line, covering the entire process from raw material processing to finished product packaging. In practical applications, the specific configuration of the production line may be adjusted according to specific situations and needs. For example, in some specific situations, certain non essential equipment may be omitted, or additional equipment such as microbial addition equipment, secondary screening equipment, etc. may be added to meet specific product quality requirements.

Chicken manure organic fertilizer crusher is a key equipment used in organic fertilizer production lines to crush chicken manure raw materials into smaller particles or powders. Its working principle varies depending on the design of different models, but can be roughly divided into two categories: hammer crusher and roller crusher. Here is a detailed explanation of the working principles of these two common types:

Hammer crusher

working principle

The hammer crusher mainly relies on the high-speed rotating hammer head to impact the chicken manure raw materials and achieve the crushing effect. Specifically:

High speed rotating rotor: The crusher is equipped with one or more high-speed rotating shafts (rotors) with hammer heads inside. The rotor rotates at high speed under the drive of the motor, generating strong power.

The impact effect of the hammer: When the chicken manure raw material enters the crushing chamber, the high-speed rotating hammer directly hits the chicken manure, and the huge impact force instantly destroys the structure of the chicken manure, causing it to split into smaller fragments.

Sieve screening: A sieve is often installed inside or at the outlet of the crushing chamber. Only when chicken manure fragments pass through the sieve holes can they leave the crushing chamber, ensuring that the particle size of the crushed material meets the set requirements. Large pieces of material that fail to pass through the sieve are returned to the crushing chamber for further processing until the desired particle size is reached.

Roll crusher

working principle

The roller press crusher uses two parallel and relatively rotating rollers to compress and shear chicken manure raw materials, thereby achieving the purpose of crushing. Its characteristics are as follows:

Double roller squeezing: The organic fertilizer crusher is equipped with a pair of pressure rollers that rotate in opposite directions, and the distance between them can be adjusted. Chicken manure raw materials enter between two pressure rollers through the feeding inlet.

Compression and Shear Forces: With the rotation of the pressure roller, chicken manure is gradually brought into the increasingly narrow space between the two pressure rollers, subjected to strong compression and shear forces. This process will cause changes in the physical structure of chicken manure, which will eventually be crushed into smaller particles.

Discharge: The crushed chicken manure particles are discharged through the gap between the pressure rollers, usually without the need for additional screening equipment, as the distance between the pressure rollers already determines the maximum particle size of the final material.

general comparison

Two types of organic fertilizer crushers each have their own advantages and disadvantages. Hammer crusher is suitable for processing dry chicken manure with low moisture content, with fast crushing effect, but may generate a lot of dust; Roller press crushers perform better on chicken manure with higher moisture content, producing less dust, but with slightly lower crushing efficiency, and relatively higher equipment and maintenance costs.

The selection of which type of chicken manure organic fertilizer crusher should be comprehensively considered based on the specific characteristics of chicken manure raw materials, expected crushing particle size, production volume, and budget. The correct selection and reasonable setting of crusher parameters are of great significance for improving the quality of organic fertilizers and the overall efficiency of production lines.

The NPK fertilizer production line is a complex system composed of multiple processes, and each link may experience malfunctions, affecting overall production efficiency and product quality. The following are some common faults and their causes on NPK fertilizer production lines:

Raw material pretreatment section

Crusher blockage: Excessive moisture content or high levels of hard impurities in the raw materials may cause the crusher to jam or block.

Uneven mixing: incorrect proportion of ingredients or insufficient mixing time, resulting in incomplete fusion of raw materials and affecting the quality of the finished product.

Granulation section

The granulator cannot granulate properly: raw materials that are too dry or too wet, improper addition of adhesives, severe wear of fertilizer granulator molds or cutting tools can all lead to granulation failure.

Inconsistent particle size: The parameter settings of the fertilizer granulator are unreasonable, and the supply of raw materials is unstable, resulting in uneven particle size.

Drying and cooling section

Excessive or insufficient drying: The temperature control of the fertilizer dryer is inaccurate, resulting in particles that are too hard or still contain too much moisture.

Low cooling efficiency: Poor ventilation of the cooling fan and insufficient flow of cooling medium result in slow cooling of particles, which may cause subsequent agglomeration.

Packaging section

Inaccurate packaging scale: The calibration of the electronic scale has failed, resulting in packaging weight deviation exceeding the standard.

Inadequate sealing: Improper pressure adjustment of the sealing machine or quality issues with the sealing material can result in poor packaging sealing.

Public facilities and auxiliary equipment

Belt breakage or deviation: The belt is aging, the tension is insufficient, or the rollers are damaged, resulting in the interruption of material transportation.

Decreased efficiency of dust removal system: filter blockage or fan failure, dust accumulation, affecting the health of the working environment and equipment operation.

Overall control system

Electrical faults: Short circuits in the circuit, burnt out contactors, malfunctioning sensors, and other issues that result in reduced automation and inconvenient operation.

Software error: PLC program error, abnormal data communication, affecting production line monitoring and scheduling.

In the face of these problems, prevention and timely repair are equally important. Establishing a comprehensive equipment maintenance plan, regularly checking the wear and tear of key components, timely cleaning filters and pipelines, and maintaining good lubrication are all key measures to avoid failures. In addition, training professional technicians to master the working principles and emergency response skills of equipment is also an indispensable part of ensuring the smooth operation of NPK fertilizer production lines. When encountering difficult technical problems, it is necessary to promptly contact equipment suppliers or third-party technical service agencies for professional guidance and support.