The organic fertilizer pellet production line project is a process that uses organic waste fermented by microorganisms to produce organic fertilizer through granulation.

Process flow of a daily production line for 500 tons of straw granular organic fertilizer

1. Mainly, raw materials containing organic matter (such as sheep manure, pig manure, sludge, chicken manure, duck manure, cow manure) with a moisture content of about 70% are mixed with crushed organic waste (such as straw, corn straw and branches, mushroom residue) and then added with a biological fermentation agent for fermentation.

2. Use a forklift to load the mixed (sheep manure, pig manure, sludge, chicken manure, duck manure, cow manure) and other plant straw into a fermentation and maturation tank, and evenly add fermentation bacteria for maturation.

3. Fermented raw materials can be directly transported to the organic fertilizer crusher for crushing through an automatic material system using a belt conveyor. The crushed materials can be directly transported to the screening machine using a belt conveyor. The screening machine screens out impurities that are not fully decomposed or crushed, and then uses a belt conveyor to transport them to the waste disposal site for processing;

4. After fermentation and crushing, the raw materials are accurately proportioned (bentonite, humic acid) with a forklift into the automatic batching bin and other raw materials (adding nitrogen, phosphorus, and potassium with a total nutrient content of less than 25%) to produce organic and inorganic fertilizer compound fertilizers. After proportioning, they are quickly and evenly stirred by a mixer.

5. It enters the organic fertilizer granulator through a belt conveyor, and a small amount of water is added to the inlet for granulation. The particles formed by the granulator are then transported by the belt conveyor to the rounding machine for shaping

6. After drying and cooling, the particles are sieved by a belt conveyor through a powder screening machine for final product screening. The particles that do not meet the requirements are transported to the waste crusher by a (finished particle 2-4mm) belt conveyor for thorough crushing, and then returned to the granulator for further granulation by the return material belt conveyor.

7. After sieving the powder, the particles are coated by a coating machine and can be added (functional bacteria can produce bio organic fertilizers)

8. After adding functional bacteria to the coating machine, the particles are transported by a belt conveyor to the second screening machine for particle size screening. The particles (2mm and 4mm) can be separated and packaged separately, making them more beautiful,

Advantages of double roller granulator:

1. Low energy consumption and energy saving road roller extrusion granulation is a kind of material granulation at room temperature. Compared with other methods, it does not require drying measures such as fuel and gas.

2. The low investment is due to the saving of the drying process, the low rate of return (about 15% of the total feed of the extruder), the simple process flow and the low investment.

3. The consumption capacity of extrusion granulation is only electricity, and there is no three waste discharge for environmental protection.

The double roller granulator has the characteristics of low energy consumption, high energy saving, low investment, simple operation, and no pollution of equipment emissions. Before the production of the npk fertilizer production line, the installation of the roller extrusion granulator needs to be debugged. Take the right approach:

1. Adjustment of the roller gap: In the npk manufacturing process, sometimes it is necessary to increase the output or bite angle, at this time, the distance between the two compression shafts can be increased, and the distance between the active shaft and the passive shaft can be increased. The steps are as follows: stop the machine, remove the upper rack of the two bearing seats, adjust the adjustment plate between the two bearing seats to the required thickness, the rollers cannot collide between the two rollers, and the minimum should be kept between 0.3-1mm.

2. The alignment adjustment of the ball socket. The ball socket is formed by the dimples on the main roller surface, so there are problems of axial alignment and circumferential alignment:

1) The axial alignment has been adjusted during installation. Generally speaking, it is not possible to adjust. When adjustment is required, tighten or loosen the glands on both sides of the passive bearing seat, thereby pushing the displacement of the eccentric sleeve to be in line with the drive shaft roller. correspond.

2) Align the ring direction, loosen the six connecting bolts between the driven gear and the adjusting sleeve, so that the adjusting device and the driven gear are slightly separated. Since the ball seat adjustment is considered in the design and two adjustment bolts are installed, the dislocation can be adjusted regardless of the dislocation.

Wet stirring tooth granulator, also known as organic fertilizer stirring tooth granulator, is a commonly used organic fertilizer granulation equipment. It is composed of spiral stirring teeth arranged and welded inside, and its biggest advantage is that it is suitable for organic fertilizer raw materials with high moisture content or other similar materials. It is mainly used for granulation of organic fertilizer raw materials and can also be used for granulation of other chemical raw materials.

The wet stirring toothed granulator mainly has models with a diameter of 600-1000MM, and suitable models can be selected according to production requirements. The shell is made of thickened seamless steel pipes, which have high overall strength and are not easily deformed. The base is welded with thickened steel, which is sturdy and durable, runs smoothly, and has a good granulation effect.

Working principle of wet stirring toothed granulator:

The wet stirring toothed granulator equipment is powered by an electric motor, which drives the internal spiral stirring toothed shaft to rotate at high speed. Air force is generated inside the machine body, which drives the material to flip back and forth and generate friction, thereby merging into balls to achieve the granulation process. The particle shape is spherical, with a sphericity of ≥ 0.7 and a particle size generally between 0.3-3mm. The sphericity rate is above 90%. The size of the particle diameter can be adjusted by adding more auxiliary materials and the spindle speed. The more auxiliary materials are added, the lower the spindle speed. The larger the particle, the less auxiliary materials are added, the higher the spindle speed, and the smaller the particle.

Applicable fields of wet stirring toothed granulator:

From the perspective of material status, it is suitable for lightweight fine powder materials. The finer the material particles, the higher the sphericity of the particles, and the better the quality.

From the perspective of material variety, it is suitable for various livestock and poultry manure, such as chicken manure, cow manure, pig manure, sheep manure, etc.

The organic fertilizer factory in a breeding farm is an equipment that uses chicken and pig manure as the main raw materials, adds a certain amount of nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, magnesium sulfate, ferrous sulfate and other substances, ferments rice bran, yeast, soybean meal and sugar for a certain period of time as biological bacteria, and under the action of sulfuric acid, mixes and ferments to produce biological fertilizers. It has not only created economic benefits for enterprises, but also made significant contributions to human environmental protection projects.

The equipment of the organic fertilizer plant in the breeding farm is divided into powder organic fertilizer production line and granular organic fertilizer production line:

The processing equipment for powdered organic fertilizer production line mainly includes: fermentation turner, organic fertilizer crusher, drum screening machine, and other equipment.

The granular organic fertilizer production line equipment is equipped with multiple types of equipment on the basis of the powder line, including a mixing mixer, organic fertilizer granulator, rotary drying machine, cooling machine, drum screening machine, coating machine, automatic weighing and packaging machine, etc.

Raw materials and auxiliary materials for organic fertilizer factories in aquaculture farms

1. Organic main raw materials: organic solid waste such as livestock and poultry feces, sludge and garbage

2. Inorganic main raw materials: urea, phosphorus, superphosphate, heavy calcium, potassium sulfate and other trace element additives account for about 10% of the formula; Y bio organic compound fertilizer requires the addition of 5% bio bacterial powder. 10% may also use raw materials as needed, such as peat, oil residue, fly ash, etc

1. Fermentation equipment enables materials to fully ferment and mature under the action of bacterial strains, eliminating harmful substances such as insect eggs in the raw materials.

2. Crushing equipment, which crushes materials into powder.

3. Screening equipment screens out materials that meet size requirements through a sieve and re crushes them.

4. A granulator is used to make crushed materials into spherical or long cylindrical shapes through a granulator.

5. Drying machine, drying the prepared particles with water to make the material more compact and not loose.

6. Packaging machine for bagging and stacking.

The development of large-scale farms can be said to be in the ascendant, which greatly meets the needs of the people for meat, eggs and milk. The subsequent harmless treatment of a large number of livestock and poultry manure is also imminent. The production and processing of livestock and poultry organic fertilizer is one of the good ways to use it. one. Use the scientific and reasonable production technology of the livestock manure organic fertilizer production line to promote the development of the local livestock and poultry organic fertilizer industry and the transformation and upgrading of the livestock breeding industry.

The organic fertilizer production line is composed of fermentation system, drying system, deodorization and dust removal system, special pulverizer for organic fertilizer, batching system, mixing system, organic fertilizer granulator and finished product packaging machine. To produce granular organic fertilizers, organic fertilizer granulators must be used. In addition to the common disc granulator  machine, double roller granulator and rotary drum granulator, let’s talk about organic fertilizer collision granulators.

The chicken manure organic fertilizer production line adopts the organic fertilizer collision granulator working principle: this model adopts the two-way spiral countercurrent collision granulation technology, and the horizontally opposed auger is driven by the motor, so that the material can obtain continuous, High-speed, reciprocating mixing and shearing, thus forming a colliding flow of high-pressure fluid state, changing the molecular structure and granulation of the material, and significantly enhancing the heat transfer, fluidization, and extrusion processes between materials. The organic fertilizer collision granulator has the following characteristics: heating granulation, strong production capacity; novel design, unique structure, small volume; high spheroidization rate, uniform, smooth, round, and high strength.

It is recommended to be equipped with an automatic return system for organic fertilizers. The unqualified large and small granular materials are divided, transported out through the belt elevator, re-crushed and sent to the granulator to continue granulation, which helps to improve the continuous operation capacity of the production line.

The organic fertilizer production line process basically includes: organic material inoculation fermentation (pre-fermentation), main fermentation, crushing, compounding and mixing, drying, granulation (double roller granulator), cooling, screening, metering and packaging, etc. craft.

(1) The process of small chicken manure organic fertilizer equipment is composed of raw material pretreatment system for continuous feeding, fermentation system, and fertilizer processing system, which can be flexibly combined according to the processing volume.

(2) The fermentation system adopts forced ventilation dynamic fermentation to ensure the adaptive supply of oxygen during the fermentation process and maintain the high activity and efficiency of microorganisms. The organic fertilizer equipment tumbler is the core equipment of aerobic dynamic composting, which is conducive to improving product quality. Stable, the general cycle is 15 days, and the aging cycle is 20 days. Compared with the traditional composting cycle of 60 days, the efficiency is higher;

(3) The low configuration of the chicken manure organic fertilizer production line only needs a pulverizer, a mixer, a granulator, a screening machine and a packaging machine. This is a basic configuration, and equipment is added according to the actual needs and requirements of customers. High configuration chicken manure organic fertilizer equipment: chicken manure dehydrator, fermentation stacker, semi-wet material grinder, horizontal mixer, rotary drum granulator, dryer, cooler, trommel screen, coating machine, packaging equipment , belt conveyors, etc.

The chicken manure organic fertilizer production line project has a high degree of harmlessness, the removal rate is over 99%, and it is completely decomposed. At the same time, the characteristics of raw materials are used to develop special products and market-specific fertilizers according to local characteristics. The chicken manure organic fertilizer production line can be processed into refined fertilizer, increase output and increase efficiency, and implement pollution-free production. If chicken manure can be processed into organic fertilizer, it will not only effectively utilize chicken manure resources, but also not worry about sales.

The complete set of large-scale livestock and poultry organic fertilizer npk production line with an annual output of 100,000-200,000 tons include: forklift feeder, trough turner, vertical pulverizer, trommel screening machine, dynamic batching machine, double roller granulator, throwing machine circular machine, dryer, cooler, coating machine, automatic quantitative packaging scale.

The mixing tooth organic fertilizer granulator is currently the most popular product on the market, and it is also a product widely loved by customers. If the organic fertilizer rounder is added, the process has high output, and the processing and granulation can be comparable to disc granulation. The ring die granulator has the highest granulation density, and the granules will not be scattered during the sales and transportation process, but a rounder must be added later to achieve the rounded finished product. From this, it can be seen that the organic fertilizer rounder plays an important role in the improvement of the quality and form of organic fertilizer in the granulation process of the npk fertilizer production line.

The performance characteristics of the organic fertilizer round polishing machine, we can see its own functional characteristics by looking at the name of the organic fertilizer rounder. , and become round particles and balls, no secondary processing and material return are required, which effectively improves the working speed and efficiency of the equipment.

1. Wide application: The round polishing machine itself has been subdivided and classified according to the different output requirements of customers, and the output span is large, which can meet the various needs of different output.

2. Good quality: The organic fertilizer round polishing machine itself has several assembly and coordination, which solves the problems of excessive equipment investment and high cost, and the uniformity of its own product quality also solves the drawbacks caused by different quality standards of finished products.

3. Easy installation: The rounding machine has achieved flexibility in the development of the process, and can realize the simultaneous use of one or several equipment, which can effectively solve the problem of insufficient granulation output, and the installation and maintenance of the equipment are very simple , without too many complicated processes.

The organic fertilizer production line has different equipment configurations according to the different raw materials, and is divided into three configurations: high, medium, and low. The organic fertilizer production line with medium and low configurations is suitable for small and medium-sized fertilizer factories. The sales range of finished organic fertilizers is in nearby areas, and some processes in the organic fertilizer production process need to be completed manually; Large fertilizer factories need to adopt a complete set of advanced production configurations, and the appearance and nutrient content of the finished products can meet market requirements, which has a significant advantage in the promotion of finished organic fertilizers.

The prices of organic fertilizer production lines with different yields also vary, and suitable plans can be made based on the investment budget.

If producing powdered organic fertilizer for processing, only one fermentation equipment, crusher, and screening machine, needs to be invested. The investment is just over 60000 yuan. If producing granular organic fertilizer, it is necessary to add an organic fertilizer granulator, dryer, and a cooling machine is generally not required for an annual production capacity of 10000 tons of organic fertilizer. The investment amount is about 200000 yuan. The construction site can be large or small, and generally requires 3 to 5 acres of land.

Firstly, after sorting and crushing, chicken manure enters the fermentation stage. This stage is very important as organic waste undergoes deep fermentation here, producing beneficial microorganisms and enzymes.

Next, the fermented organic materials will be dried to reduce moisture content and facilitate subsequent processing. Then, after screening and crushing, the powdered organic fertilizer obtained will undergo formula adjustment to meet the needs of different crops.

Finally, organic fertilizers can be packaged in various bags or forms for convenient storage and sales.

In order to smoothly carry out the above process flow, the supporting equipment of organic fertilizer production equipment is also crucial. Common supporting equipment includes waste crushers, fermentation composters, dryers, screening machines, and packaging machines. These devices can effectively improve production efficiency and product quality, while also reducing labor costs and energy consumption. Of course, the equipment models and configurations required by organic fertilizer production enterprises of different scales may also vary, and the selection should be based on specific circumstances.

The npk fertilizer production line mainly includes feeder, disc mixer, chain crusher, drum granulator, drum dryer, drum cooler, drum screener, finished product warehouse, automatic packaging machine, belt conveyor , dust settling chamber, heat exchanger, etc. Commonly used granulation equipment for organic fertilizers are: disc granulator, double roller granulator, drum granulator, wet granulator, counter-roll extrusion granulator, flat die granulator, ring film granulator granulator.

1. The rotary drum granulator raw materials: It can be used for the granulation of livestock and poultry manure, composted manure, green manure, sea manure, cake manure, peat ash, soil and miscellaneous fertilizers, three wastes, and microorganisms.

2. The rotary drum granulator is a process of compound fertilizer granulation, and it can also be used to produce organic fertilizer, but the granulation rate is low.

3. The principle of rotary drum granulator is that the material relies on surface tension, an appropriate amount of liquid phase, the extrusion force generated by rolling between materials, and the material is centered on small particles in the correct direction of movement in the granulator. Large adsorption and small adhesion, bonding into balls. The higher the rolling frequency in a certain period of time, the higher the spheroidization rate, and the more rounded the pellets are after they are formed.

4. The organic fertilizer rotary drum granulator used in small and medium-sized fertilizer plants is a rotating circular simple with a diameter of 1.2-2.4m and a length of 3-6m. Set up a retaining ring at the feed end and the middle part of the simplified, and the tail is light. The middle retaining ring of the organic fertilizer drum granulator divides the simplified into two areas, the front area is the mixing granulation area, and the rear area is the particle polishing area.

Due to the long-term application of chemical fertilizers, the lack of organic fertilizers, and the imbalance of various nutrient ratios, the farmland ecological environment, soil physical and chemical properties and soil microbes are in my country. The bio-organic fertilizer has achieved satisfactory results in the verification of fertilizer efficiency and various crops, and has been recognized by many citizens.

Organic fertilizer granulator equipment double roller granulator uses pressure to agglomerate the solid material, and then squeezes the material through two counter-rotating rollers, which are driven by an eccentric sleeve or a hydraulic system. When extruding solid materials, the air between the powder particles is first removed to rearrange the particles, thereby eliminating the gaps between the materials.

In the npk production line, the extruded organic fertilizer granulator should prevent the granular powder materials from being put into the extrusion granulation equipment, and then the powder materials are compressed by external force. Due to the different modes of external force used, the molecules are reassembled so that the material assumes cylindrical particles. The entire production and extrusion process is mechanized without manual operation. However, agitation granulation primarily uses agitation to form a material into a circle. The bulk product produced by the extruded organic fertilizer granulator has a thickness of 5-20 mm and a surface density of 1.5-3 times that of the feed. The chunks are then sliced, crushed and sieved to obtain the desired granular product.

The double-roll extrusion granulator adopts the non-drying and normal temperature process, and the particle strength is high. In the npk fertilizer production line, the increase in the accumulation proportion is more obvious than other granulation methods, the reliability of electric power small operation, the three kinds of wastes are not discharged, and the operation is stable , easy maintenance, reasonable process layout, advanced technology and low production cost. The twin-roll extrusion granulator realizes the green reuse of resources and has huge market potential.