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What are the factors that affect the conveying distance of powder pneumatic conveying system equipment?
Release time:
2022/04/12
Affect powderPneumatic conveying system equipmentTwo key factors for delivery are energy consumption and stability. Energy consumption is the power consumption of the powder moving in the pipeline with the conveying gas, that is, the pressure drop; that is, the stability of the transportation process, the unstable transportation may lead to blockage, so that the transportation cannot be carried out normally. Therefore, the study of long-distance pneumatic conveying of powder pneumatic conveying system equipment is to study how to reduce energy consumption and maintain the stability of conveying.
1. Energy consumption
Energy consumption is the power consumption (pressure drop) in the process of pneumatic conveying system equipment. Reducing energy consumption can reduce the pressure drop per unit conveying length and increase the conveying distance. The pressure drop of pneumatic conveying is related to many factors. Different types, particle size and moisture content of powder have different pneumatic conveying law. For the same kind of powder, particle size and its distribution, moisture content are the main factors affecting the fluidity of the powder. The smaller the particle size, the wider the distribution, the higher the moisture content, the worse the fluidity, and the more difficult the pneumatic conveying.
2. Stability
The apparent gas velocity of the pneumatic conveying system equipment is increasing along the pipeline, and the flow pattern of the gas-solid two-phase flow also changes. When the conveying gas velocity drops to the boundary of dense phase steady-state conveying, unstable dune flow will be formed, which is manifested as the pressure fluctuation becomes larger, the conveying gas velocity decreases continuously, and the material will accumulate along the pipeline until the pipeline is blocked. Therefore, it is of great significance to study the stability of powder pneumatic conveying and keep the conveying system in a stable state to realize long-distance pneumatic conveying.
Affect powderPneumatic conveying system equipmentTwo key factors for delivery are energy consumption and stability. Energy consumption is the power consumption of the powder moving in the pipeline with the conveying gas, that is, the pressure drop; that is, the stability of the transportation process, the unstable transportation may lead to blockage, so that the transportation cannot be carried out normally. Therefore, the study of long-distance pneumatic conveying of powder is to study how to reduce energy consumption and maintain the stability of conveying.
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