Straw is one of the raw materials in the production of organic fertilizer, which is different from the manufacturing of NPK fertilizer and the treatment of livestock manure. There are special requirements and characteristics when straw is treated by organic fertilizer manufacturing process, which needs composting processing.

Production technology of organic fertilizer for processing straw
1. Traditional straw composting

The traditional straw composting technology has the advantages of long fermentation time, poor fermentation effect and simple equipment, which is suitable for small-scale application. The method of straw fermentation is as follows: firstly, the straw is crushed with a pulverizer, but not excessively crushed, and the factors such as moisture, carbon nitrogen ratio and pH value are adjusted. The optimum ratio of carbon to nitrogen is 25:1. Therefore, adjusting the ratio of carbon and nitrogen in composting materials is an effective measure to accelerate the maturity and improve the humus coefficient.

Generally, the preparation methods of fermentation compost include adding phosphate fertilizer, adding lime, adding manure and urine, etc. Straw should be soaked with enough water to make the moisture content of straw reach 60% – 70%, which is the key to success or failure of composting. The compost piles without decomposition agent are usually stored for about 40 days in summer, and the temperature in the compost can rise to 50 ~ 60. After the high temperature stage, the compost can be dumped inside and outside. The standard of rotten is: black, rotten and smelly, that is, straw turns brown or black brown. When wet, it is soft and elastic, and when dry, it is brittle and easy to be broken.

2. New-type straw organic fertilizer manufacturing process

Use large-scale, high-efficiency organic fertilizer fermentation equipment and biochemical technology to accelerate crop straw rot. That is, the method of mixing with fast decomposing agent and using compost turning machine to increase the temperature and speed of compost and shorten the period of compost. Generally, the straw is mixed with livestock manure (or urea) to meet the nitrogen required for microbial fermentation. Use a complete set of organic fertilizer turning machine for trough turning and throwing fermentation to improve fermentation efficiency, shorten fermentation cycle, and increase production capacity.

In the NPK fertilizer production line, both rotary drum granulators and extrusion granulators have their unique advantages and limitations. The choice of which one to use mainly depends on production needs, raw material characteristics, and the quality requirements of the final product. The following are the main advantages and disadvantages of these two types of granulators:

Rotary Drum Granulator

advantage:

Wide applicability: The rotary drum granulator can process materials with high viscosity and high moisture content, and is suitable for granulating various complex components in NPK fertilizers.

Particle uniformity: By adjusting the rotation speed of the drum and the water spray system, the size and shape of the particles can be controlled to ensure the uniformity of the particles and the uniform distribution of fertilizer components.

Good mixing effect: During the granulation process, the materials roll and mix in the drum, which helps to improve the uniformity of various components in NPK fertilizer.

High flexibility: By adjusting process parameters, granular fertilizers of different specifications and characteristics can be produced.

Disadvantages:

Relatively high energy consumption: The rotary drum granulator requires a large amount of power during the granulation process, and its energy consumption may be higher compared to the extrusion granulator.

Large footprint: The equipment size of rotary drum granulators is usually large, requiring a large production space.

High drying requirements: Due to the possibility of water spraying during the granulation process, the subsequent drying process requires high standards to ensure the stability and storage performance of the particles.

Extrusion granulator

advantage:

Low energy consumption: The extrusion granulator forms particles through physical extrusion, which has lower energy consumption compared to the rotary drum granulator.

High production efficiency: The extrusion granulator has a fast production speed and is suitable for large-scale fertilizer production lines.

High particle strength: The particles produced by the extrusion granulation mechanism have high hardness and are not easily broken, making them suitable for long-distance transportation and long-term storage.

Simple operation and maintenance: The structure of the extrusion granulator is relatively simple, and the operation and maintenance costs are low.

Disadvantages:

Limited applicable materials: Extrusion granulators are more suitable for processing dry or semi dry materials, and their granulation effect may be poor for high moisture or high viscosity materials.

Particle shape limitation: Squeezing granulators usually produce particles with more regular shapes, but may not have as diverse particle shapes as drum granulators.

High requirements for raw material pretreatment: In order to ensure the effectiveness of extrusion granulation, the raw materials may need to undergo additional pretreatment, such as crushing and mixing, to ensure the uniformity and suitable physical properties of the materials.

summary

The selection of rotary drum granulator and extrusion granulator in NPK fertilizer production line needs to comprehensively consider factors such as raw material characteristics, production scale, product requirements, and cost-effectiveness. In practical applications, it may be necessary to combine these two types of granulators to achieve optimal production efficiency and product quality. For example, first use a rotary drum granulator for initial granulation and mixing, and then use an extrusion granulator for secondary granulation to improve the hardness and stability of the particles.

The rotary drum granulator has demonstrated many advantages in daily industrial applications, making it the preferred granulation equipment in many industries such as fertilizers, chemicals, pharmaceuticals, food processing, etc. The following are the main advantages of the rotary drum granulator:

Good granulation effect:

The rotary drum granulator can produce uniform and dense particles through its unique rotation and rolling mechanism. By precisely controlling the addition of moisture and binder, it is possible to ensure that the particle size and shape meet the requirements, which is crucial for improving the quality and performance of the product.

Strong adaptability:

The rotary drum granulator is capable of processing a variety of raw materials, including powders, granules, flakes, or clumps in different forms. It also has good adaptability to the moisture content and viscosity of raw materials, and can adjust the granulation parameters according to different raw material characteristics to achieve the best granulation effect.

High production efficiency:

The rotary drum granulator adopts a continuous production mode, which can achieve large-scale industrial production. Its efficient material handling capability and continuous granulation process significantly improve production efficiency, meeting the needs of large-scale production.

Flexible operation:

By adjusting parameters such as the rotation speed, tilt angle, water spray system, and raw material feeding rate of the drum, the size, shape, and hardness of particles can be flexibly controlled to meet different product requirements and market standards.

Easy to maintain and clean:

The structural design of the rotary drum granulator takes into account ease of maintenance, and its internal structure is easy to inspect and clean regularly, which helps to extend the service life of the equipment and maintain good operating conditions.

Relatively low energy consumption:

Compared to other granulation technologies such as high-pressure extrusion granulation, the energy consumption of rotary drum granulators is lower because their granulation process relies more on physical rolling and chemical bonding, reducing the dependence on additional energy.

High security:

The design of rotary drum granulators considers the safety of operators and is usually equipped with safety protection devices such as emergency stop buttons and protective covers, reducing safety risks during operation.

Good cost-effectiveness:

Although the initial investment may be relatively high, the efficient production capacity and low operating costs of the rotary drum granulator demonstrate good cost-effectiveness in long-term operation, which can bring high returns to manufacturers.

In summary, the rotary drum granulator has become the preferred equipment for granulation processes in many industries due to its excellent granulation effect, high production efficiency, operational flexibility, and cost-effectiveness in daily industrial applications. It plays a key role in improving product quality, reducing production costs, and enhancing production efficiency.

Bio organic fertilizer is a kind of organic fertilizer, we can produce the organic fertilizer by the organic fertilizer production line. In the organic fertilizer manufacturing process, it is to be equipped with different type and series fertilizer equipment to finish the production process. The method of producing the bio-organic fertilizer has different, so how can we to produce the bio organic fertilizer by using fertilizer production?

The fertilizer machine manufacturers also designed the organic fertilizer manufacturing process. In the bio organic fertilizer production line it is to be equipped with different type fertilizer machine.Production method of bio organiic fertilizer

Bio-organic fertilizer is a kind of fertilizer that is made by scientifically processing decaying natural organic matter, plant stalks, seed coats, cakes, livestock and poultry manure as main raw materials, plus soil fertility, and scientifically processed by a compost turning machine. Local raw materials can be used to make full use of livestock manure, crop straw and other organic waste produced by rural households for reproduction. With a small amount of input, it not only improves the fertilizer utilization efficiency and saves time, but also brings many benefits to the use and production, ensuring the quality of the fertilizer.
The duck manure organic fertilizer production line equipment is a comprehensive plan for building a factory based on the customer’s site conditions, local raw material sources, land nutrition, and planting conditions, and the production line equipment used for building the factory. As a currently available organic fertilizer production line in the market, small organic fertilizer production lines are convenient to build and have relatively close distances for raw material storage and transportation. At the same time, it also avoids the drawbacks of ultra small home workshop organic fertilizer processing enterprises. It is the main investment direction for planting and breeding enterprises and fertilizer processing enterprises in the early stage.

fertilizer equipment manufacturer specializes in producing fertilizer machines. We have designed various types of fertilizer production lines. For example, NPK fertilizer manufacturing process is designed for the production of special compound fertilizer. The design of fertilizer production line has important advantages for the development of agriculture. As the NPK fertilizer manufacturing process is adopted, different types and series of compound fertilizer machinery are equipped to complete the production process, which improves the work efficiency and simplifies the fertilizer production process. It also saves more labor costs for investors.

In addition to providing professional fertilizer manufacturing technology and equipment, we also provide a number of services.

Pre sales service: fertilizer manufacturing process equipment manufacturers provide you with project design, process design, recommend the appropriate NPK fertilizer granulator for you according to your raw materials, and formulate a suitable selection scheme of machinery and equipment. According to the special needs of users, design and manufacture products, train technical operators for users.

In sale service: accompany you to complete the acceptance of the equipment, and assist in drawing up the construction scheme and detailed process.

After sales service: the company sends technical personnel to the site to guide the installation and commissioning of organic fertilizer equipment (except for vulnerable parts), and guarantee the quality within one year.

Pig manure is a very good organic fertilizer, which contains a lot of nitrogen, phosphorus and potassium required by plant growth. It is suitable for plant growth and can increase the yield of food crops. The production of organic fertilizer from pig manure is a way to turn pig manure into treasure.

The pig manure organic fertilizer production line has achieved breakthrough results in the harmlessness and resource reuse of pig manure. The whole set of equipment for making organic fertilizer from pig manure makes pig manure into organic fertilizer, which solves the chronic problem that pig manure is difficult to recycle and seriously pollute the environment.

The process flow of pig manure organic fertilizer equipment production line is a little more complex than NPK fertilizer manufacturing process, and the raw materials need fermentation first, then granulation processing.

1. Raw material fermentation.

2. Computer belt scale automatic batching.

3. Crushing and mixing.

4. Granulation.

5. Drying organic fertilizer granules by dryer.

6. Organic fertilizer particles are cooled by cooler. 

7. The qualified organic fertilizer particles are screened out by the screening machine.

8. Coating machine film particles, more smooth.

9. Automatic filling and sealing of organic fertilizer granules by packing scale.

The workflow of the rotary drum granulator mainly includes the following steps:

Raw material preparation:

Raw materials (such as organic materials, inorganic materials, compound fertilizers, etc.) usually require pre-treatment before entering the rotary drum granulator. This may include crushing to ensure that the raw materials reach the appropriate particle size; Mixing to ensure uniform distribution of various components; And humidity adjustment to control the moisture content of the raw materials, making them suitable for granulation.

Raw material feeding:

The preprocessed raw materials are evenly fed into the rotary drum granulator through a feeding device. The control of feeding rate is crucial for maintaining the stability and particle quality of the granulation process.

Granulation process:

When the raw materials enter the rotary drum granulator, centrifugal force begins to act, causing the raw materials to move towards the edge of the rotary drum granulator. During this process, the raw material particles begin to roll and collide with each other, gradually forming larger particles through the viscous interaction between the raw materials.

To promote particle formation, it may be necessary to spray an appropriate amount of water during the granulation process to increase the viscosity of the raw materials. The water spray system is usually located above the disc and can precisely control the amount of water sprayed.

Particle screening:

As the particles gradually increase, they will gradually slide from the edge of the rotary drum granulator to the screening device below. The screening device usually includes sieves with different pore sizes to separate particles that meet the requirements.

Smaller particles that have not been screened or fully formed particles will be sent back to the disc for further granulation, while oversized particles may need to be crushed and reintroduced into the granulation process.

Drying and cooling:

The initially screened particles may contain high moisture and need to be dried using drying equipment to reduce moisture content and improve particle stability. After drying, the particles may need to undergo a cooling process to reduce temperature and avoid chemical reactions or deterioration during storage or transportation.

Packaging and Storage:

The final dried and cooled granular fertilizer can be weighed, packaged, and then stored or directly transported to the market for sale.

The workflow of the rotary drum granulator is a continuous process, which can effectively produce high-quality granular fertilizers by precisely controlling the feeding rate of raw materials, the rotation speed of the disc, the working status of the water spray system, and the parameters of the screening equipment. Throughout the entire process, the pretreatment of raw materials and the drying and cooling of the final product are key steps in ensuring the quality and performance of granular fertilizers.

The other 75% nutrients in chicken, sheep and pig feed were excreted with feces, including nitrogen, phosphorus, potassium, organic matter, amino acid, protein and so on. A series of treatments in the organic fertilizer manufacturing process turn manure into organic fertilizer. How can organic fertilizer equipment achieve rapid fermentation and deodorization to produce finished products? What are the advantages of this process over ordinary fermentation?

Fermentation technology of organic fertilizer

1. The energy consumption of compost turning machine is low.

Fecal composting fermentation process can use biological heat to evaporate a large amount of water, low energy consumption, save coal, electricity, labor intensity, can better control the fermentation humidity, reduce the loss of effective substances.

2. Organic fertilizer equipment fermentation environment pollution is small.

Closed equipment is used in compost tipper to strengthen the controllability of factory production and reduce the exposure of mosquito and fly parasitism source. This can effectively control environmental pollution and produce high-quality organic fertilizer under the premise of ensuring the environment.

3. The processing time of organic fertilizer fermentation equipment is short.

First, the factory fermentation process is used to inoculate high-efficiency active bacteria, so that the microorganisms can quickly form dominant bacteria, shorten the fermentation time, and accelerate the deodorization. Generally, deodorization can be completed within 2 to 3 days. At the same time, the turning of the turning machine increases the oxygen required for microbial activities and speeds up composting. Under normal natural conditions, open-air composting often takes several months.

Only by understanding the advantages and functions of the equipment can it play its role better. We provide organic fertilizer manufacturing process and NPK fertilizer manufacturing process to ensure the steady improvement of agricultural production efficiency.

Fertilizer Equipment Manufacturer will introduce you to the production process and process of fertilized fertilizer in large fertilizer plants. Friends who want to build a fertilizer plant can refer to it.
Production process of organic fertilizer

1.After mixed fermentation of bacteria and raw materials, the composting machine is used in the fermentation process. Fermented compost can provide nutrients and improve soil properties, especially for sandy soil, clay and salinized soil.

2.The rotten raw materials are crushed and screened, and then arrive at the deep processing workshop through the elevator.

3.The fertilizer is mixed by the raw material mixer and then enters the fertilizer granulator for pelleting.

4.Next, the pelletized fertilizer is sent to the pelletizing equipment for rounding.

5.The particles after rounding reach the drying cylinder through the conveyor belt. The dried particles are then transported to the cooling drum through the conveyor belt for cooling.

6.The dust generated in the drying and cooling process enters the dedusting equipment through the induced air for dedusting. The cooled particles are then transported by the conveyor belt to the screening machine.

7.Then the sieved particles enter the quantitative packaging equipment through the conveyor belt for packaging, and become finished fertilizer.

Equipment selection of NPK fertilizer granulator

There are many types of fertilizer processing equipment in the above process, such as granulation link. Different types of NPK fertilizer granulators are suitable for different processing processes, including disc granulator, rotary drum granulator, roller extrusion granulator, etc. When selecting production equipment, fertilizer plants should consider their own plant planning, estimated annual output, type of raw materials, etc., which are related to how to select the most suitable equipment and ensure the maximum benefit.
Matters needing attention

Finally, fertilizer granulator equipment manufacturers remind everyone to consider the sales path of raw materials and fertilizers. Organic fertilizer raw materials that can be considered include crop straw, green manure, weeds and other plant materials, as well as manure and sludge. Attention should be paid to whether the raw material of livestock and poultry manure contains hormone residues, heavy metal overruns and other issues. The selection of bacteria should pay attention to the activity of bacteria and the number of useful live bacteria. Regarding marketing, we must examine the local fertilizer demand and transportation convenience.

On the production line of NPK fertilizers (nitrogen phosphorus potassium compound fertilizers), the commonly used types of fertilizer granulators mainly include drum granulators, disc granulators, and extrusion granulators. Among them, rotary drum granulators and extrusion granulators are common choices in NPK fertilizer production because they can handle the high mixing ratios and complex components required for NPK fertilizers, while ensuring the uniformity and stability of the particles. Below are the characteristics of these two types of granulators:

Drum granulator:

The rotary drum granulator achieves the granulation process through a rotating drum shaped container. The raw materials roll in the drum, and appropriate amount of water or binder is added through the spray system to gradually agglomerate the raw materials into particles. The rotary drum granulator is capable of processing highly viscous materials and is suitable for the production of NPK fertilizers, as it can effectively control the size and shape of particles while ensuring uniform distribution of fertilizer components.

Due to the complex composition of NPK fertilizers, the rotary drum granulator has become the preferred choice for NPK fertilizer production lines. It can process high concentration raw materials while controlling particle size and density by adjusting the drum speed and water spray system.

Squeezing granulator:

The extrusion granulator squeezes the raw material into strips through a pair of rollers (opposite rollers) that rotate in opposite directions, and then forms particles through cutting. This granulation method is suitable for dry or semi dry materials and can produce particles with high hardness and regular shape.

For NPK fertilizer production, the extrusion granulator can provide high-density, high-strength particles, which helps stabilize the fertilizer during transportation and storage. At the same time, the high production efficiency and particle uniformity of the extrusion granulator are also one of the reasons why it is popular in NPK fertilizer production lines.

The choice of granulator mainly depends on the production requirements, raw material characteristics, production scale, and cost considerations of NPK fertilizer

If high-density and high-strength particles need to be produced, and the raw materials are relatively dry, an extrusion granulator may be a better choice.

If the raw material contains high moisture or requires the addition of liquid binders during the granulation process to promote particle formation, a rotary drum granulator is more suitable.

Considering the complex composition of NPK fertilizers and the need to ensure uniform distribution of ingredients, the mixing capacity of the rotary drum granulator gives it an advantage in this regard.

In actual NPK fertilizer production lines, a combination of drum granulators and extrusion granulators may be used based on specific needs and raw material characteristics to achieve optimal production efficiency and product performance. In addition, other aspects of the production line, such as raw material pretreatment, drying, cooling, and packaging, also have a significant impact on the quality of the final product. Therefore, the comprehensive design and optimization of the entire production line are crucial.