Below are some of the most common design mistakes in pneumatic conveying systems, and some specific suggestions on how to avoid them in engineering.

The first point is the pressure calculation error in the pneumatic conveying system

In pneumatic conveying, the most difficult thing is how to correctly calculate the pressure drop of the entire pipeline. There are many variables in the pneumatic conveying system, including: pipeline diameter, pipeline arrangement, product density, particle size of powder materials, etc., but the pressure problem is in a set of It is critical in the pneumatic conveying system, and a slight error may cause the overall problem of the pneumatic conveying system.

The second point is the material acceleration in the pneumatic conveying system

It must be remembered that there is a pressure differential across the delivery system. When the air velocity at one end differs greatly from the air velocity at the other end, if the pressure drop through the system is not considered, the velocity of the powder will not be sufficient to fluidize the powder and the pipeline will be blocked.

The third point is the underestimation of the flow of the pneumatic conveying system

A common mistake in pneumatic conveying systems is designing their average flow. Since our productivity may vary in most cases, let's say you want your system to run at peak traffic. When the pneumatic conveying system is operating at the highest peak, the designed average flow rate may not achieve the expected effect, and may even block the pipeline. Therefore, when designing the average flow, the variation of the peak flow must be fully considered. The delivery volume of the pneumatic conveying system can be adjusted to meet your needs more conveniently.

The fourth point is to properly increase the exhaust port in the pneumatic conveying

In a dilute phase pneumatic conveying system, if there is no exhaust port, the fan can become trapped with gas. When the rotary feeder rotates and each feeding port starts to deliver the product to the blowing pipe, the whole system may not be able to deliver the material to the designated position due to the excessive pressure in the system

The fifth point is that the airflow distribution in the pneumatic conveying system is not correct

When designing a pneumatic conveying system, if it is in a system with multiple receiving points, be sure to use an airtight diverter to properly pass the air flow. The airflow is designed to be collected from one point and delivered to one point only. Airtight diversions are required to isolate each conveyor lane from multiple pickup points to multiple destinations.

The sixth point is improper filtration in the pneumatic conveying system

Some plants incorrectly rely on ventilation filters on silos. Exhaust filters are designed to expel air, not deliver it. This can cause fresh air issues in the system. In addition to small ventilation filters on silos, bag filters are very important for handling conveying air.

The seventh point is the corrosion of material contact parts in the pneumatic conveying system

Any corrosive (such as dry salt) or acid (such as biomass) materials in the pneumatic conveying system will corrode carbon steel. In order to ensure the stable operation of the pneumatic conveying system, it must be ensured that the contact part of the material is stainless steel.