Rotary Screw Compressors & How They're Used in the Food Processing Industry

More likely than not, you've used or heard of a compressor before, but did you know there are industrial compressors meant for large operations like food manufacturing and processing? Here is how rotary screw compressors are utilized in the industrial food processing industry and play a crucial role in providing a reliable source of compressed air. How is compressed air used in food processing? Compressed air is a versatile utility used for tasks such as pneumatic conveying, packaging, cleaning, and operating pneumatic tools. Let's break down how industrial rotary screw compressor packages work and their specific applications in the food processing industry.

Image from Genemco



How Industrial Rotary Screw Compressor Packages Work:

  1. Rotary Screw Compressor Mechanism:

    • Rotary screw compressors operate on a positive displacement principle. They consist of two helical rotors (screws) that intermesh within a casing.
    • As the rotors rotate, they reduce the volume of air between them, causing compression. This compressed air is then discharged.
  2. Oil-Injected vs. Oil-Free Designs:

    • Many rotary screw compressors are oil-injected, where oil is used for lubrication and cooling. This design provides efficient compression and helps maintain the durability of the compressor.
    • In the food processing industry, oil-free compressors may be preferred to avoid any risk of oil contamination in the compressed air, which could impact product quality and safety.
  3. Air Treatment:

    • After compression, the air may go through various treatment stages. This includes cooling to reduce temperature, moisture removal to prevent condensation, and filtration to remove contaminants.
  4. Control Systems:

    • Modern compressors often come with sophisticated control systems. These systems regulate the compressor's output based on demand, ensuring energy efficiency and optimal performance.

Image from Genemco

 

Applications in the Food Processing Industry:

  1. Pneumatic Conveying:

    • Compressed air is used to transport food products and ingredients through pipelines. It is a gentle and efficient method for handling materials like flour, sugar, or grains.
  2. Packaging:

    • Compressed air is employed in packaging processes, such as sealing, labeling, and filling. It ensures the proper functioning of pneumatic devices used in these applications.
  3. Cleaning:

    • Compressed air is vital for cleaning equipment and production areas. It is often used to blow off debris or dust from food processing machinery.
  4. Pneumatic Tools:

    • Various pneumatic tools in the food industry, such as drills, wrenches, and grinders, are powered by compressed air.
  5. Controlled Atmosphere Storage:

    • In some food storage applications, controlled atmospheres using compressed air can be employed to extend the shelf life of certain products.

Image from Genemco

 

Considerations for the Food Processing Industry:

  1. Hygiene:

    • Compressor systems in the food industry must meet strict hygiene standards. Oil-free compressors or those with food-grade lubricants are often preferred to avoid contamination.
  2. Energy Efficiency:

    • Energy-efficient compressors with advanced control systems help reduce operational costs and environmental impact.
  3. Air Quality:

    • Compressed air used in the food industry should be free from contaminants and moisture to maintain product quality.
  4. Compliance:

    • Compliance with industry regulations and standards is essential to ensure the safety and quality of food products.

In summary, industrial rotary screw compressor packages provide a reliable source of compressed air for a variety of applications in the food processing industry. Proper selection, installation, and maintenance are critical to meeting the industry's specific requirements and ensuring the safety and quality of food products.

Shop quality-used rotary screw compressors at genemco.com