• Categories:News Center
• Time of issue:2022-05-06 10:37

(Summary description)What are the most common mistakes in designing pneumatic conveying systems? Listed below are some common design mistakes, and some specific suggestions for avoiding them. The first point is that the pressure of the pneumatic conveying system is miscalculated. In pneumatic conveying, it is the most difficult problem to correctly calculate the pressure drop of the entire system line length. In a set of pneumatic conveying, there are various variables such as pipe diameter, line layout, product density, material particle size, etc., and the pressure problem is very important in the whole system, and subtle mistakes may have an overall impact on the system. The second point, low feed rates in pneumatic conveying systems. There is a pressure gradient on a pneumatic conveying system, which is the difference in air velocity at one end versus the other. When there is a large difference in air velocities between the two ends, the low pick-up speed may not be sufficient to fluidize the product and clog the pick-up if the pressure drop through the system is not considered.   The third point is the underestimation of flow in pneumatic conveying systems. Design the average flow of the pneumatic conveying system, ignoring the variation of the peak value. Because the production rate is not constant in actual production, when the system reaches its peak, the average flow rate calculated by the original design may not achieve the desired effect, and may even block the pipeline. Therefore, the variable of peak capacity should also be calculated when designing the average flow, so that the delivery volume of the system can be flexibly adjusted. The fourth point is to correctly add the exhaust port in the pneumatic conveying. In the dilute-phase pneumatic conveying system, if the exhaust port is not added correctly, the entire system may not be able to convey the material to the designated location due to excessive pressure.   The fifth point is that the air flow in the pneumatic conveying system is not properly divided. When designing a pneumatic conveying system, in a system with multiple receiving points, proper design is required to ensure that the airflow is properly split. The sixth point is improper filtration in the pneumatic conveying system. Filtration devices such as exhaust filters should be used to discharge air, not deliver air, which can cause problems with airflow in the system.   Seventh point, the material contact parts in the pneumatic conveying system corrode. Any corrosive or acidic material in the pneumatic conveying system will corrode carbon steel. In order to ensure the stable operation of the system, special treatment should be carried out on the contact parts of the material, and anti-corrosion materials should be used.