The food industry handles delicate, powdery, and granular materials daily. These substances should not be exposed to rotor abrasion or contaminants from silencers or oil-contaminated air during transport.
Only a handful of manufacturers meet these stringent criteria and hold ISO 22000 certification. As a result, AERZEN technologies are increasingly becoming the preferred choice in this industry.
The Air is Clean
Maintaining clean and pure process air is vital in the food industry to prevent product contamination. As the air comes into direct or indirect contact with the processed materials, it must adhere to strict quality standards.
Contaminants in compressed air, such as dust, moisture, oil, or microorganisms, can adversely impact product quality. A comprehensive and well-designed system for generating and treating compressed air is essential to prevent this.
This includes oil-free compressor stages, reactive silencers that eliminate absorption materials, and precisely matched filtration systems.
AERZEN equipment can be tailored to meet the specific needs of the food industry and operate reliably even in challenging environmental conditions, like extreme temperatures.
Fields of Application in the Food Industry
Blowers and compressors find applications in various food production processes, including pneumatic conveyance for tasks such as filling or emptying silos and tank trucks. They are especially crucial in:
- Wastewater treatment
- Separation
- Silo loosening
- Central vacuum cleaning systems
- Vapor recompression (breweries)
- Fermentation
- Aeration (fish farming)
- Drying and packaging processes (inerting e.g. with nitrogen), among others
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Blowers and compressors are also integral in producing and processing products like muesli, coffee, chips, and bottles.
Whether in compact mobile solutions for transporting materials in silo vehicles and ships or in large stationary systems with high throughput, AERZEN assemblies are suitable for handling a wide range of bulk materials through pneumatic conveying.
Challenges in the Food Industry
Apart from requirements regarding purity, food industry companies must also address various challenges during production, processing, storage, and packaging. In silo applications, blowers and compressors play a key role in introducing bulk materials or loosening their contents.
These silos often house flour and grains, both of which present a significant risk of dust explosions. Therefore, assemblies equipped with spark arrestors are predominantly employed for safety. AERZEN assemblies are valued by food industry users for their durability, even when exposed to harsh environmental conditions.
These conditions encompass strong winds, extreme temperatures, and the demanding circumstances that may arise in ship and desert installations or when operating in earthquake-prone areas.
Delta Screw
The Delta Screw stands out as a screw compressor with either belt or direct drive, notable for its extended pressure range of 3.5 bar (g) and a wide array of accessories and adaptability. It serves as a versatile solution with a broad scope of applications.
It consistently performs reliably across various temperature zones worldwide, whether in indoor or outdoor settings, and whether it is used in mobile or stationary applications.
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Delta Hybrid
When energy efficiency is a priority and the required differential pressures do not exceed 1.5 bar, the Delta Hybrid emerges as the optimal choice. Moreover, the Hybrid Portfolio offers models with a constant negative pressure of up to 50 mbar abs.
This negative pressure not only facilitates pneumatic transport over longer distances but also enhances the safe handling of food packaging.
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Delta Blower
The Delta Blower series is the established industry standard and a favored selection within the food industry, particularly for product transport.
Delta Blowers find application on silo vehicles for loading and unloading purposes and operate stably when filling and emptying containers, as well as during transport within production lines. With a differential pressure capability of up to 1 bar or -0.5 bar, these positive displacement blowers are exceedingly durable, robust, and proven.
Image Credit: Aerzener Maschinenfabrik GmbH
This information has been sourced, reviewed and adapted from materials provided by Aerzener Maschinenfabrik GmbH.
For more information on this source, please visit Aerzener Maschinenfabrik GmbH.