What is the working principle and granulation process of a drum granulator?

fertilizer granulator Apr 7, 2024

The drum granulation method is a method of mixing and granulating powdery basic fertilizers using a rotary drum granulator, and is especially suitable for large-scale production of cold and hot compound fertilizer granulation lines and high-low concentration npk production line. The main working method is wet granulation. Principle: each basic fertilizer is first screened separately, and the screened material is crushed by a crusher and then screened. The undersieves are sent to their respective warehouses. When the granulation system is running, all basic fertilizers are sent into the hopper from their respective warehouses in proportion to requirements through metering equipment, conveying equipment and lifting equipment at the same time. At the same time, the return material also enters the warehouse through the lifting equipment and basic fertilizer.

The basic fertilizer and the return material are mixed to a certain extent during the transportation and improvement process, but it is more ideal if the mixing equipment can be added. The mixed material in the feeding hopper is fed to the drum granulator at a certain feeding rate. At the same time, the saturated water vapor properly enters under the feed layer, which not only increases the temperature of the material, but also humidifies the material, which is beneficial to granulation. If necessary, spray a small amount of water or fertilizer solution on the material to maintain a good liquid phase for material granulation. The material creates a tumbling bed by means of the friction created as the drum granulator rotates. The extrusion force generated by rolling makes the material containing a certain liquid phase agglomerate into small particles, making these small particles become the core, and attaching to the surrounding powder to produce larger particles.

Because the rotary drum granulator is generally inclined 1°~2.5° towards the discharge end, the powder slowly rolls to the outlet along the inclination direction of the cylinder. Qualified powder leaves the drum granulator and enters the dryer for drying, then goes through screening, cooling, coating, packaging and storage. After crushing, the sieve is fed into the hopper and base fertilizer as return material.

What are the equipment required for treating organic fertilizers with cow manure

fertilizer granulator Apr 7, 2024

Cow manure itself is a good source of organic fertilizer. In addition to being rich in trace elements such as organic matter, nitrogen, phosphorus, and potassium, it also contains various biological enzymes and microorganisms. After being made into fertilizer, cow manure fertilizer can play an irreplaceable role in improving soil organic matter and fertility, improving soil structure, improving soil physical and chemical environment, and microbial environment.

Organic fertilizer is a fertilizer made from animal and plant residues, kitchen waste, and other raw materials. The production process requires the use of multiple equipment to ensure the full utilization of raw materials and efficient conversion into valuable organic fertilizers.

1. Fermentation stage: Fermentation is the key process for converting materials such as poultry and livestock manure into organic fertilizer, which directly determines the quality of organic fertilizer. This process requires the use of a flipping machine to regularly flip the material, increasing its oxygen filling, water evaporation, and heat dissipation, while reducing odors and bacterial growth.

2. Precision processing: The fermented organic fertilizer is screened, crushed, and granulated to make it a commercial fertilizer that meets the requirements. This process requires the use of screening machines, crushers, granulators, and other equipment.

The equipment required for treating organic fertilizers with cow manure includes: cow manure flipping machine, crusher, mixer, granulator, screening machine, dryer, and automatic packaging machine. The first step of fermentation treatment in the production process is the focus of the entire process. The fermentation effect determines the overall quality of cow manure organic fertilizer. The subsequent processing mainly involves shaping the organic fertilizer to enhance the appearance of the product.

The quality and design process of organic fertilizer equipment directly affect the quality of organic fertilizers. Therefore, when purchasing organic fertilizer equipment, it is necessary to choose equipment with advanced technology and high-quality materials to ensure the quality and production efficiency of organic fertilizers, improve the utilization rate and added value of raw materials.

Advantages and disadvantages of different models of organic fertilizer granulators

fertilizer granulator Apr 7, 2024

Organic fertilizer granulator is a molding machine that can manufacture materials into specific shapes and is widely used in the production of organic fertilizers, bio organic fertilizers, and other fields. The organic fertilizer granulator directly affects the product yield, quality, appearance, price, and other aspects of the entire organic fertilizer production line. It can be said that the organic fertilizer granulator is the core of the entire production line, and the purchase of granulator equipment is also a very important link in organic fertilizer production. In general, the price range of an organic fertilizer granulator is tens of thousands to hundreds of thousands, and the specific price varies depending on the brand and model.

There are also different types of organic fertilizer pelletizers, such as extrusion pelletizers, rotary pelletizers, and disc pelletizers, all of which have their own advantages and disadvantages. The specific one that is good can be based on one’s own needs and production requirements. Different granulation processes for organic fertilizers require different types of granulators. When making organic fertilizers, which suitable granulator should be used? Firstly, we need to understand the advantages and disadvantages of each granulator:

1. Squeezing granulator: It belongs to dry granulation without drying process, with high granulation density, good fertilizer efficiency, and full organic matter content; It also saves the cost of purchasing dryers and cooling machines, and there is no need to burn coal in the later stage, which saves a significant amount of funds. However, the granulation process of the squeezing granulator belongs to a flat circular shape, which is prone to jamming during machine sowing of crops in the field, and its fluidity is not very good. Therefore, if organic fertilizer is produced for machine sowing farmers, this granulation process should be used with caution, and it is recommended to use compound fertilizer and compound mixed fertilizer.

2. Stock conversion granulator: It is a process that has been used for compound fertilizer granulation and can also be used to produce organic fertilizers, but the granulation rate is relatively low. If producing organic and inorganic organic fertilizers, this process can be chosen.

3. Disc granulator: It is a relatively traditional process that produces smooth and attractive pellets, with the only drawback being low density; At present, people are pursuing new types and methods of granulation, so the number of users is gradually decreasing (universal type).

4. New type of organic fertilizer pelletizer: This process has high yield and smooth processing. If an organic fertilizer pelletizer is added, the granulation can be comparable to that of a disc pelletizer. However, it is necessary to purchase a dryer and a cooling machine, and the entire set of equipment for this process of organic fertilizer is expensive.

5. Ring mold granulator: With the highest particle density, the particles will not scatter during sales and transportation. However, in the later stage, a rounding machine must be added to achieve the finished product of round particles. This granulation process is more expensive than extrusion granulators.

Equipment granulation characteristics of a 50000 ton NPK fertilizer production line

fertilizer granulator Apr 7, 2024

The 50,000 tons/year NPK production line is mainly used to produce NPK compound fertilizers. With a high production capacity of 50,000 tons per year, it can meet the needs of large chemical fertilizer plants. In the granulation process, we choose a disc granulator machine. In addition to the disc granulator, the double roller granulator and the rotary drum granulator can also be used for npk production. The efficiency is high and the quality and quality of the finished NPK fertilizer can be guaranteed. in good shape. NPK fertilizers aid plant growth, increase seed and fruit yields, and improve the quality of foliage and forage crops.

The main components of the 50,000 tons/year nitrogen, phosphorus and potassium compound fertilizer production line are disc granulator machine npk production line has twelve main components, including disc feeder, disc mixer, chain crusher, disc granulator, Drum dryer, drum cooler, drum screening machine, finished product warehouse, automatic packaging machine, belt conveyor, settling chamber, heat exchanger.

1. The batching machine batches quantitatively according to the formula. The raw materials for making fertilizer mainly include ammonium nitrate, urea, ammonium chloride, ammonium sulfate, ammonium phosphate, ammonium phosphate, potassium chloride, potassium sulfate, etc.

2. The disc mixer then mixes the material thoroughly through its mixing arms and small blades.

3. The belt conveyor transports the material to the crusher, which breaks the material into small pieces to meet the requirements of the granulator.

4. The fertilizer granulator is powered by a transmission, and the rotating scraper above the disc can process the fertilizer into a predetermined shape and clean the granules at the bottom of the disc. You can preset the size of the particles by adjusting the height of the edge of the disc.

5. Next, the pellets go through drying and cooling stages. During this process, the dryer removes excess moisture from the pellets, increasing their density and also facilitating storage.

6. The drum is responsible for classifying the pass or reject particles. Qualified ones will be transported to the finished product warehouse. Unqualified ones will be sent back for recycling.

7. The fertilizer automatic packaging machine packs finished products efficiently.

The working principle and raw materials of the disc granulator for compound fertilizers

fertilizer granulator Apr 7, 2024

The disc granulator for compound fertilizers is a type of traditional granulation equipment, which has the advantages of uniform granulation, high granulation rate, stable operation, sturdy and durable equipment, and long service life. It is a granulation equipment for producing organic fertilizers, compound fertilizers, metallurgy, coal powder, cement, limestone, coal gangue and other materials.

The compound fertilizer disc granulator is suitable for granulating organic fertilizer, compound fertilizer, compound fertilizer, and organic-inorganic compound fertilizer:

Working principle of the disc granulator for compound fertilizers:

Disk granulation is face-to-face, easy to control, and flexible to adjust. Install a water spray device above the disc to spray it out in a mist shape. The material continuously flows into the rotating disc through a belt conveyor or other conveying equipment, and is carried up as the disc rotates. Then it falls along the bottom of the disc to the bottom, and due to the addition of mist like moisture, the material gradually forms particles during the process of rotating and falling with the disc. As time goes on, the particles gradually increase. The compound fertilizer disc granulator is designed with an angle adjustment mechanism, and users can determine the inclination angle of the disc according to the required particle size. Generally, the inclination angle of the disc can be adjusted between 35 ° and 50 °, and particles that meet the specifications float above the inclined disc. As the disc rotates, the particles are thrown out along the tangential direction of the disc and pulled into the next ring in the feeding port of the belt conveyor.

The compound fertilizer disc granulator can be used to transport various non cohesive materials in powder, material or small pieces, such as coal powder, cement, clinker, limestone, shale, coal gangue, clay and other powder, particle or small pieces of materials. It can be widely used in gold selection plants, coal mining plants, chemical engineering, infrastructure and mechanized casting workshops for continuous, uniform and quantitative feeding and batching.

What are the complete sets of organic fertilizer production equipment for chicken manure

fertilizer granulator Apr 7, 2024

Chicken manure is a commonly used organic fertilizer, which is widely used in agricultural production due to its rich nutritional content and microorganisms. The nutrients in chicken manure mainly include nitrogen, phosphorus, potassium, etc., which play important roles in soil and crop growth. However, if chicken manure is left for too long, its fertilizer efficiency will be significantly reduced, and even lose its utilization value. Therefore, in order to ensure the fertilizer efficiency and quality of chicken manure, it is recommended to process and utilize it as soon as possible after collection and stacking to avoid prolonged storage time. For farmers, a simple composting method can be adopted by mixing chicken manure with other organic substances, promoting decomposition and fermentation through flipping and ventilation, and applying it to the soil as early as possible. For larger scale breeding plants or processing enterprises, more advanced organic fertilizer production line processes and equipment can be adopted, such as flippers, fermentation tanks, crushers, screening machines, etc., to improve the efficiency and quality of chicken manure treatment.

The complete set of chicken manure organic fertilizer production equipment includes the following parts:

1. Discharge system: used to transport raw materials (such as animal manure, straw, etc.) from the storage pile to the equipment for the next processing step.

2. Crushing system: Use an organic fertilizer crusher to preliminarily crush the raw materials, making them easy for subsequent processing and fermentation.

3. Mixing system: Mixing different types of raw materials to achieve optimal fermentation conditions, usually requiring the use of weighing equipment to control the proportion of each raw material.

4. Fermentation system: The mixed raw materials are fermented in a fermentation tank, usually requiring control of temperature, humidity and other parameters to accelerate the fermentation process.

5. Flipping system: The fermented organic fertilizer is flipped using an organic fertilizer flipping machine to increase aeration and improve fermentation efficiency.

6. Drying system: Used to dry organic fertilizers that have already been fermented, usually using equipment such as rotary dryers or belt dryers.

7. Packaging system: Packaging dried organic fertilizers for sale or storage.

The above is the main equipment involved in a basic organic fertilizer production process. The specific types and scales of equipment can be selected and customized according to actual needs.

Equipment and granulation process of a 100000 ton NPK compound fertilizer production line

fertilizer granulator Apr 7, 2024

 The 100,000-ton NPK compound fertilizer production line meets the needs of most customers. It is a large-capacity production line. We choose the rotary drum granulator as the main fertilizer making equipment, which is an ideal equipment for large-scale production of high- and low-concentration compound fertilizers. The double roller granulator can be used in small npk production line granulator.

The npk manufacturing process, the compound fertilizer production system has low requirements on formula. The steam with a pressure of 4-6kpa is passed into the drum granulator, mixed with powdered phosphorus, potassium or other nitrogen-containing fertilizers and conditioners, and further granulated. The steam melts the surface of the N, allowing the N to combine with other raw materials. This compound fertilizer production line is especially suitable for high nitrogen compound fertilizer. Various fertilizers can be produced in concentrations ranging from 25% to 48%. Since the moisture content of the material is 3-5% during granulation, the drying capacity is increased by 20%-40%, which greatly increases the fertilizer output and reduces the consumption.

100,000 tons of npk production line process The entire compound fertilizer production process: raw material batching, raw material mixing, granulation process, drying process, cooling process, screening process, coating process, packaging process.

Raw material mixing and granulation:

Mix the raw materials evenly to increase the nutrient content of the granular fertilizer. After mixing evenly, the raw materials are transported to the drum granulator for granulation, and steam and gaseous ammonia are introduced, or orthophosphoric acid, ammonium phosphate slurry, nitrogen solution, and calcium carbonate slurry are added, and a series of chemical reactions occur in the drum . A small amount of water can be added throughout the production process. The drum rotates, and the raw materials are condensed into fertilizer granules under specific temperature and humidity. This is the whole NPK fertilizer granulation process.

Drying and cooling of fertilizer granules:

The ammonia phosphorus potassium fertilizer is sent to the tumble dryer to dry out the moisture in the fertilizer granules and improve the strength of the fertilizer. After drying, due to the high temperature, the fertilizer is easy to agglomerate, so the NPK granular fertilizer needs to be cooled for storage and transportation. We chose the drum cooler because of its high efficiency and high output per hour.

The use of supporting equipment for organic fertilizer production line, forklift feeder

fertilizer granulator Mar 27, 2024

The supporting equipment of the organic fertilizer production line, the forklift feeder, is used to evenly or quantitatively supply materials from the storage bin or other storage equipment to the receiving equipment. It is a commonly used equipment for implementing automated assembly line operations. Forklift feeders are often used as feeding equipment for ball mills, ore collection belt conveyors. The feeder is widely used in agriculture, coal, electronics, machinery, chemical industry, building materials, light industry, grain and other industries. In the production process, the feeder is used to quantitatively, uniformly, and continuously feed block, granular, and powder materials from the storage bin or funnel to the receiving device.

The supporting equipment of the organic fertilizer production line, the forklift feeder, is composed of a weighing system, a chain plate conveying mechanism, a material bin, and a frame; The chain plates, chains, pins, rollers, and other components of the conveying mechanism are vulnerable parts that may experience wear and deformation at different usage intensities and frequencies, and require replacement by the user; The chain plate feeder has high stiffness and can adapt to large blocks of materials with a certain particle size. The silo has a large volume, which can effectively shorten the feeding time of the shovel. However, at the same time, the chain plate transmission speed is slow and the bearing capacity is large. Forklift feeder is generally referred to as feeding, but due to different names in different places, it has different names, and its essence and function are basically the same.

How to design and plan the equipment layout of organic fertilizer production lines

fertilizer granulator Mar 27, 2024

The rationality of the process, equipment, and construction layout of the organic fertilizer production line directly affects the infrastructure area and investment amount. The basic principles of factory layout design are based on saving, reducing investment, effectively and fully utilizing existing space, effectively utilizing planned investment, and fully meeting production objectives. The reasonable layout of the process equipment factory should start from its processes and principles.

In order to achieve a reasonable layout of the process equipment workshop and factory design, judgments should be made from three aspects: raw materials, processing technology, and deep processing requirements.

1. The impact of raw materials on the process equipment and factory design of organic fertilizer production lines. Due to differences in raw materials, the production process is affected, and most organic fertilizer raw materials are affected by pollution.

One scenario is that during the raw material pretreatment process, the manufacturer can directly preprocess the raw materials on the farm or farmers, then close and transport them to the manufacturer;

Another scenario is to collect untreated waste directly from farmers and farms, and preprocess it in factories. These two methods directly affect the construction of the processing area.

2. Factors affecting the fermentation process. The fermentation process should be carried out based on the quantity of materials.

The current fermentation process that meets national production standards is aerobic fermentation, and the fermentation cycle consists of two parts: fermentation, maturation, and secondary aging. In order to meet the standards, it is advisable to choose tank fermentation or stack fermentation as much as possible. Compared to the two, with the same production capacity requirements, stack fermentation occupies a larger factory area.

Another factor that affects the fermentation process is the fermentation equipment used. Tank fermentation often uses a mobile car with multiple tanks for fermentation, and the flipping process directly realizes the movement of materials towards the discharge port. The fermentation tank can be transferred during the secondary aging stage to achieve continuous fermentation;

However, the use of walking composting machines or flipping machines in stackers results in inherent inconvenience in material transfer. The secondary aging process often involves in-situ aging, which affects the fermentation cycle.

3. The process impact during the later stage of deep processing. The post processing technology of organic fertilizer production line equipment can be divided into powder organic fertilizer production line technology and granular organic fertilizer production line technology, with significant differences in occupied area and equipment infrastructure investment.

Starting from the production line technology of powdered organic fertilizer, the processing technology of powdered organic fertilizer is that after the raw materials are fermented and matured, the main equipment only needs processes such as crushing, stirring, and packaging to be sold. Simply put, the production line process of powdered organic fertilizer is part of the particle processing technology.

In terms of the production process of granular organic fertilizer, in addition to processes such as crushing, stirring, and packaging, drying, granulation, particle grading, and particle packaging are also required. Therefore, particle processing technology often chooses processing production lines with an annual output of over 10000 tons, while small capacity enterprises often choose powder fertilizer processing technology.

The production line of cow manure organic fertilizer uses a disc granulator to produce fertilizer

fertilizer granulator Mar 27, 2024

Common organic fertilizer granulators include: double roller granulator, rotary drum granulator, disc granulator machine, new organic fertilizer granulator, new two-in-one organic fertilizer granulator. How does the disc granulator production line produce cow dung organic fertilizer? The disc granulator machine is powered by a motor, which drives the inclined disc to rotate. The internal scraper prevents the material from sticking to the bottom of the disc. When the material rotates to the top, it rolls down by itself, rolling into granules like a snowball. It can be used in organic fertilizer production line, npk fertilizer production line and biological organic fertilizer production line, etc.

1. Raw material ratio: 500 kg of cow dung + 300 kg of auxiliary materials + 200 kg of bacterial residue + 100 grams of bacterial agent. This recipe can also use other livestock and poultry manure.

2. Pile driving: piling is carried out according to the above raw material ratio requirements. There is no limit to the length. 4m wide and 2m high.

3. Add bacteria agent: the ratio is 1:5. After mixing the starter and the bacteria residue evenly, spread it on the surface of the bacteria pile.

4. Stirring and fermentation: After the temperature rises above 60°C, turn the pile with a crawler-type compost turner every 4-5 days.

5. Screening and crushing: Fermented organic fertilizer raw materials are screened and deeply crushed according to the above steps to become powdery organic fertilizer.

6. Granulation: The fermentation powder is granulated with a disc granulator machine.

7. Drying, cooling, and packaging: The prepared granules have a large moisture content and need to be dried to less than 20% of the organic fertilizer standard. After cooling, they are directly packaged.

Zhengzhou Huazhiqiang Organic Fertilizer Equipment Manufacturer is based on the principle of honest management. It is an organic fertilizer equipment manufacturer mainly engaged in organic fertilizer turning machine, organic fertilizer granulator, organic fertilizer pulverizer, organic fertilizer fermentation machine and other complete organic fertilizer production lines. , The enterprise spirit of contributing to the agricultural cause, perfect after-sales service and technology development system, welcome to know.