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Double Roller Granulator

double-roller-granulator

Double roller granulator is a type of compaction granulation equipment used in the production of granular fertilizers. It is also known as a double roller press granulator or double roller extrusion granulator.

The double roller granulator consists of two smooth rollers that rotate in opposite directions. As the raw material is fed into the gap between the rollers, it is compressed and compacted into a flat sheet. The sheet then passes through a second set of rollers, where it is further compressed and shaped into small, round granules.

Double Roller Granulator Advantage

  • No drying process: normal temperature granulation, one-time molding, less investment and good economic benefits.
  • Advanced equipment: small power, reliable operation, stable operation and convenient maintenance.
  • Wide range of application: It can be used for granulation of various raw materials such as compound fertilizer, medicine, chemical industry, feed, coal, metallurgy, etc., and can produce various concentrations and types of fertilizers.

Application of Double Roller Granulator

Application-of-Disc-Granulator-Machine
  1. Fertilizer production: Double roll granulator is commonly used in the production of fertilizers, particularly in the production of nitrogen and phosphate fertilizers.

  2. Pharmaceutical production: Double roll granulator is used in the pharmaceutical industry for the production of granules used in tablet manufacturing.

  3. Food production: Double roll granulator can be used in the food industry to produce granules from food ingredients, such as salt, sugar, and spices.

  4. Chemical production: Double roll granulator is used in the chemical industry for the production of specialty chemicals, such as catalysts, sorbents, and pigments.

  5. Mineral production: Double roll granulator can be used in the production of industrial minerals, such as bentonite and kaolin.

  6. Powder metallurgy: Double roll granulator is used in the production of powder metallurgy components, such as automotive parts and aerospace components.

Double Roller Granulator Structure

Double-Roller-Granulator-Structure

The structure of a double roller granulator typically consists of the following components:

  1. Motor: The motor provides the power to rotate the rollers.

  2. Gearbox: The gearbox is responsible for transmitting the power from the motor to the rollers.

  3. Rollers: There are two rollers that rotate in opposite directions. The rollers are usually made of high-quality alloy steel and have a smooth surface to prevent the material from sticking to them.

  4. Frame: The frame provides the support and structure for the machine. It is usually made of welded steel and is designed to withstand the forces generated during operation.

  5. Feed hopper: The feed hopper is the point where the raw material is introduced into the machine. It is usually located above the rollers and is designed to ensure a consistent feed rate.

  6. Screw feeder: The screw feeder is responsible for delivering the raw material from the feed hopper to the rollers.

  7. Hydraulic system: The hydraulic system provides the force required to compress the material between the rollers. It is usually controlled by a hydraulic cylinder.

  8. Control panel: The control panel contains the electrical components required to operate the machine. It typically includes a control system that allows operators to adjust the feed rate, roller speed, and other parameters.

Finished Product Display of Double Roller Granulator​

Granular-display

  1. Fertilizer granules: Fertilizer granules produced by a double roller granulator can vary in size, shape, and color depending on the type of fertilizer and the production process. They can range from small, uniform-sized granules to irregularly-shaped granules with a rough texture.

  2. Tablet granules: In the pharmaceutical industry, the finished product of a double roller granulator is usually in the form of tablet granules. These granules are smooth, uniform in size, and have a consistent density.

  3. Food seasoning: A double roller granulator can be used to produce granules from food ingredients such as salt, sugar, and spices. The finished product is usually small, uniform-sized granules that are used as seasoning or as a coating on confectionery products.

  4. Industrial minerals: Double roller granulator can produce industrial minerals such as bentonite and kaolin. The finished product is usually in the form of small, uniform-sized granules with a smooth surface.

  5. Catalysts: In the chemical industry, double roller granulator is used to produce catalysts. The finished product is usually small, uniform-sized granules with a high surface area and porosity.

The finished product of a double roller granulator depends on the specific application and production process used. However, regardless of the application, the finished product is typically uniform in size, shape, and density, making it easier to handle and use in subsequent manufacturing processes.

Double Roller Granulator​ Parameter

ModelPower(kw)Granule Diameter(mm)Roller Sheet Size(mm)Dimensions(mm)
TDJZ-1T153-10150*2201450*800*1450
TDJZ-1.5T223-10150*3001450*850*1500
TDJZ-2T303-10185*3001630*850*1650
TDJZ-3T373-10300*3001850*1100*2050

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