Granulator Machine For Dehydeted Onion

The Dry Granulator Machine for dehydrated onions is a type of equipment designed to process dehydrated onion powder or flakes into granules or pellets. This granulated form is highly desirable in the food industry for ease of handling, storage, and use in various applications like soups, sauces, seasonings, and ready-to-eat meals.
The dry granulator machine is used to compress dehydrated onion powder or flakes into uniform-sized granules without the need for adding moisture. The process typically involves dry powder compaction, which reduces the dust and improves flowability while maintaining the flavor and nutritional integrity of the dehydrated onion.

The working principle of the dehydrated onion drying and granulator involves several stages, which rely on mechanical pressure to convert dehydrated onion powder or thin slices into granules. This machine typically uses a compaction process to achieve the required particle size without the need for moisture or adhesives. The following is a detailed description of its working principle:

The dehydrated onion powder or onion slices are loaded into the hopper of the granulator. The powder can be fine or coarse, depending on the degree of dehydration and grinding before processing. The feeding mechanism controls the flow of the powder to ensure consistent and uniform input into the granulation system. Inside the machine, powder passes between two high-pressure rollers or a series of rotating molds. These rollers or molds have adjustable gap Settings to control the compression level applied to the material. The powder is compressed between the rollers, causing individual particles to bond together. This force is sufficient to make the powder particles stick together without the need for liquid or binder. When the material passes through the compaction zone, it forms compacted flaky or "cake" -like powder. Then, the cake is broken down into evenly sized small pieces. After the material is compacted into sheets, it passes through a set of sieves or screens. These screens ensure that only the required particle size passes through, while overly large or small particles are separated.

The appearance is generally irregular granular, and some granules may be in a mixed state of granules and powder. The specific shape depends on the granulation process and the fineness of the raw materials. Dehydrated onion granules are usually light yellow or golden yellow, with uniform color and a natural onion hue. The size of the particles can be adjusted as needed, usually ranging from 1mm to 5mm. The smaller the particle size, the finer the taste, but it may also affect the dissolution speed. Dehydrated onion granules have a strong onion aroma and flavor. After dehydration and granulation, the pungent taste of Onions is somewhat weakened, but they still retain their unique fresh and delicious flavor. Appropriate particle size and a uniform drying process can make the odor more balanced.

1. Q: What benefits does a dry granulator bring to dehydrated Onions?

A: The moisture content of dehydrated Onions is very low. A dry granulator can prevent any additional moisture, maintaining the shelf life and quality of the product. This machine ensures consistent particle size, enhances the fluidity of the product and makes it easy to operate. As it does not require liquid binders, it uses less energy compared with the wet granulation method. The demand for additional ingredients has been reduced, and since no drying process is required after granulation, the operating costs have been lowered.

2. Q: Which dehydrated Onions can be processed by a dry granulator?

A: The granulator can process dehydrated onion powder and dehydrated onion slices.

3. Q: How to adjust the particle size?

A: The particle size is mainly controlled by adjusting the roller pressure, screen size and pressure force. Smaller grids will produce finer particles, while larger grids will produce coarser particles.

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