Emilie Meyer
Pan granulators, also known as disc granulators, are machines that convert powdered materials into round granules. They are commonly used in the production of fertilizers, but also in other industries such as pharmaceuticals and food processing. Pan granulators utilize a non-pressure, or tumble growth, approach to agglomerate and work by tumbling material on a rotating pan, with a binding agent and feedstock being continuously added. The binding agent causes the particles to become tacky and pick up additional particles as the material tumbles against itself, leading to a growing action known as coalescence. Once the granules have reached the desired size and shape, they exit the rotating disc via centrifugal force.
| Characteristics | Values |
|---|---|
| Function | Converts powdered materials into round granules |
| Application | Fertilizer production, pharmaceuticals, food processing, coal dust, cement, iron and steel, chemical fertilizer |
| Granulation Method | Wet granulation |
| Raw Materials | Fertilizers, minerals, chicken poo, cow dung, sheep manure, etc. |
| Structure | Disk body and disk section, adjustable along the disk body |
| Disk Speed | Adjustable with a variable frequency drive (VFD) |
| Disk Angle | Adjustable with a hand-wheel jacking screw |
| Disk Diameter | Varies among different models |
| Disk Height | Varies among different models |
| Disk Rotation | Counterclockwise |
| Binding Agent | Liquid binder, typically water |
| Process | Raw materials are fed onto the disk, rotated, and mixed with the binding agent to form granules |
| Cleaning | Scrapers or blades remove buildup from the disk wall |
| Output | Granules exit the disk via centrifugal force |
| Efficiency | Improved efficiency and reduced labour force |
| Customization | Adjustable variables allow for fine-tuning and customization |
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What You'll Learn
- Pan granulators convert powdered materials into round granules
- They are used to produce granules from powdered materials
- Pan granulators are applicable for producing NPK compound fertilizers
- Pan granulators are used in the production of fertilizers, pharmaceuticals and food processing
- Pan granulators are ideal for medium-size and small fertilizer production factories
Pan granulators convert powdered materials into round granules
Pan granulators, also known as disc granulators, are machines that convert powdered materials into round granules. They are commonly used in the production of fertilizers, as well as in other industries such as pharmaceuticals and food processing. Pan granulators utilize a non-pressure, or tumble growth, approach to agglomerate and form granules.
The process of converting powdered materials into granules begins by adding raw materials to the spinning disc through the inlet on top of the machine. These materials can include fertilizers, minerals, or other substances that need to be granulated. As the disc rotates, the materials are pushed towards the edge due to centrifugal force. A liquid binder, such as water, is then sprayed onto the materials, causing them to become tacky and stick together.
The continuous rotation of the disc and the addition of the binding agent create a "growing" action called coalescence. As the aggregated particles tumble around the disc, they pick up additional layers, becoming denser and more refined. This process fills the spaces between larger particles with smaller ones, creating a uniform granule. The angle and speed of the disc can be adjusted to control the size of the granules, with steeper angles and faster speeds resulting in smaller pellets.
Once the granules have reached the desired size, they exit the rotating disc through centrifugal force. The finished granules are discharged from the outlets, while any unqualified pellets can be re-granulated. Pan granulators improve efficiency, reduce labour requirements, and minimize pollution compared to other granulation methods. They are a versatile and effective solution for converting powdered materials into round granules across various industries.
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They are used to produce granules from powdered materials
Pan granulators are used to produce granules from powdered materials. They are key pieces of equipment in the compound fertiliser and organic fertiliser industries, but they are also used in other industries that require granulation, such as pharmaceuticals and food processing. Pan granulators can be used to granulate powder complex fertiliser into pellets, reducing pollution and making transportation and storage more convenient.
The pan granulator is a machine that makes granules using a rotating disc. The disc is made of strong materials and is slightly tilted. It spins because of a motor. The process starts by adding raw materials to the spinning disc. These materials can be fertilisers, minerals, or other substances that need to be turned into granules. The materials are pushed to the edge of the disc by the spinning motion. At the same time, a liquid binder like water is sprayed onto the materials. The binder helps the particles stick together and form granules. As the wet powder moves to the outer edge of the disc, it tumbles because of the spinning. This, along with the sticky binder, makes the particles stick together and form granules.
The pan granulator utilises a non-pressure (tumble growth) approach to agglomerate and works by tumbling material on a rotating pan, with a binding agent and feedstock being continuously added. The binding agent causes the fines (or seed pellets when using a pre-conditioning step) to become tacky and pick up additional fines as the material tumbles against itself. This causes a "growing" action referred to as coalescence. Once pellets have reached the desired size, they exit the rotating disc via centrifugal force.
To ensure the granulation process works well, the pan granulator has scrapers or blades that lift and move the material as it spins. These scrapers can be adjusted to a distance of 5-10mm from the bottom of the disk. The scrapers also clean the agglomerations that stick to the disc wall, improving the service life of the machine. The angle of the pan can also be adjusted to change the size of the pellets. A higher angle will result in less retention time on the pan, yielding smaller pellets, and a lower degree of angle will result in more retention time on the pan, yielding larger pellets.
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Pan granulators are applicable for producing NPK compound fertilizers
Pan granulators are widely used in the production of NPK compound fertilizers. NPK fertilizers are necessary nutrients in modern agriculture, and the industry has a promising future. The pan granulator is a machine that can turn powdery NPK materials into fertilizer pellets. This is done through granulation, which can be achieved through two methods: wet granulation and dry granulation.
Wet granulation involves adding water or vapour to the compound fertilizer granulator, which causes a chemical reaction. The rotating motion of the machine then squeezes the particles into balls. The pan granulator employs centrifugal force to make powders into pellets. Materials are put into the inlet on top of the machine, and the granulating disc rotates. Water is sprayed according to the desired effect of the granules. The materials rotate inside the disc and gradually become pellets due to centrifugal force, friction, and gravity. The pellets are then discharged from the outlets, and any unqualified pellets can be re-granulated. The pan granulator can also be adjusted to control the size of the pellets.
Dry granulation, on the other hand, is suitable for materials that are not meant to be mixed with liquid. This method presses the powder into specific shapes. The dry NPK fertilizer press granulation machine is ideal for powder with a moisture content of about 5%.
Pan granulators are popular in fertilizer production as they are efficient and can handle various raw materials. They can be used to make both organic fertilizers and compound fertilizers.
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Pan granulators are used in the production of fertilizers, pharmaceuticals and food processing
Pan granulators, also known as disc granulators, are machines that convert powdered materials into round granules. They are used in the production of fertilizers, pharmaceuticals, and food processing. The process involves mixing a liquid binder with the powder material inside a rotating pan. The pan is composed of a disc body and disc section, with the disc section being adjustable along the disc body. This design ensures that the granules are not damaged and have a good appearance.
The pan granulator utilizes a non-pressure, tumble growth approach to agglomerate. The binding agent, such as water, causes the seed pellets to become tacky and pick up additional particles as the material tumbles against itself. This process is known as coalescence, where the aggregated particles continue to tumble around the disc, picking up additional layers and becoming denser. The angle of the pan can be adjusted to control the size of the pellets formed. A higher angle will result in smaller pellets, while a lower angle will produce larger ones.
The pan granulator is particularly useful in the fertilizer industry, where it can be used to convert animal waste and manure into organic fertilizer pellets. It is also applicable in the coal dust, cement, iron and steel, and chemical fertilizer industries. The machine offers improved efficiency and a stable base, making it suitable for constant production.
Additionally, the pan granulator can be used for wet granulation, which is greener than dry granulation, reducing pollution during the process. The machine's customizability and adjustable variables allow for fine-tuning, resulting in an extremely high-quality product. The pan granulator is also available in different specifications to meet specific production needs, making it a versatile tool in various industries.
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Pan granulators are ideal for medium-size and small fertilizer production factories
Pan granulators are an ideal choice for medium-sized and small fertilizer production factories. They are used to produce granules from powdered materials. This type of machine employs a wet granulation method, which is considered greener than the dry granulation method, as it decreases pollution. Pan granulators are also capable of using a wide variety of raw materials, including chicken poo, cow dung, and sheep manure, to make organic fertilizer. They can also be used to create compound fertilizers.
The pan granulator machine uses a rotating disc to mix liquid binder with the powder material. The disc is made of strong materials and is slightly tilted. It rotates thanks to a motor, which is driven by a belt pulley and belt. The pinion is driven by a reducer. The powder raw materials are transported into the pan of the fertilizer disc granulator evenly through a conveyor belt. The pan granulator can also be adjusted to have the desired angle and speed. The angle of the pan is adjusted by a hand-wheel jacking screw, while the speed is adjusted by a variable frequency drive (VFD).
The liquid binder, such as water, is sprayed onto the disc and mixes with the powder feed. This causes buildup on the pan's bottom and side walls, which is removed by scrapers or blades. The scrapers or blades also help direct the pellets and ensure the granules' good appearance. The rotating motion of the disc pushes the materials to the edge, where they tumble and form into small round granules. This process is known as coalescence, where the particles stick together and grow in size.
Once the granules have reached the desired size, they exit the rotating disc via centrifugal force. The unqualified pellets are sent back to the crushing system to be re-granulated. The pan granulator's simple process and compact structure make it a suitable choice for small and medium-sized fertilizer production factories. It requires less labour and saves working area, making it a cost-effective option.
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