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CHRIS丨Considerations for the selection of pneumatic conveying in the food industry

CHRIS丨Considerations for the selection of pneumatic conveying in the food industry

  • Categories:News Center
  • Time of issue:2022-05-06 14:03

(Summary description)Whether it is salt, powdered sugar, milk powder or monosodium glutamate, as long as the food raw materials are powder and granular materials, pneumatic conveying can be used for material conveying. So how to choose a pneumatic conveying system? Today let's take a look at the considerations for food raw materials when choosing a pneumatic conveying system.

CHRIS丨Considerations for the selection of pneumatic conveying in the food industry

(Summary description)Whether it is salt, powdered sugar, milk powder or monosodium glutamate, as long as the food raw materials are powder and granular materials, pneumatic conveying can be used for material conveying. So how to choose a pneumatic conveying system? Today let's take a look at the considerations for food raw materials when choosing a pneumatic conveying system.

  • Categories:News Center
  • Time of issue:2022-05-06 14:03
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Whether it is salt, powdered sugar, milk powder or monosodium glutamate, as long as the food raw materials are powder and granular materials, pneumatic conveying can be used for material conveying.

So how to choose a pneumatic conveying system? Today let's take a look at the considerations for food raw materials when choosing a pneumatic conveying system.

科里时丨食品行业选用气力输送的考虑因素

 

1. Collection of parameters

1. First of all, consider the factors of pneumatic conveying materials. The physical and chemical properties of materials directly affect the selection requirements of pneumatic conveying, including particle size, particle size distribution, shape, density, suspension speed, water content, hygroscopicity, and fluidity of the material. , fragmentation, corrosiveness, electrostatic effect, abrasiveness, toxicity, radioactivity, etc.

Among them, the material characteristics such as particle size, shape and fluidity of the material are the basic influencing factors, which have a huge impact on the conveying stage, and determine the fluidity of the material in the pneumatic conveying system and the air volume selection of the system.

For food raw materials, more common material properties such as moisture content, cohesiveness, and hygroscopicity need to be considered. Moisture content will affect the fluidity of materials in the pipeline, which is an important consideration in system design; the adhesion between moisture and materials may cause materials to stick and cause pipeline blockage.

科里时丨食品行业选用气力输送的考虑因素

 

2. Selection of pneumatic conveying form

Once the delivery parameters have been determined, three basic categories of delivery need to be considered. Understanding this stage will help determine how to choose a pneumatic conveying system:

1. Dense-phase pneumatic conveying: Dense-phase pneumatic conveying adopts low-speed conveying, the material will not be suspended in the air flow, so it will not cause great wear to the material and the pneumatic conveying system itself, which is more suitable for fragile materials or complete materials. Production process with higher requirements.

2. Semi-dense phase pneumatic conveying: The semi-dense phase pneumatic conveying system is suitable for products in a ventilated state, such as cement or fly ash, so it is relatively rare in the transportation of food raw materials.

3. Diluted-phase pneumatic conveying: Diluted-phase pneumatic conveying adopts high-speed conveying, and the material will be suspended in the air flow in the pipeline, which will not cause pipeline deposition. Fragile materials are more suitable. For materials with larger particles, the dilute phase pneumatic conveying requires a higher air flow to keep the particles suspended, so it will maintain a higher conveying speed and cause greater wear to the material.

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