What are typical pneumatic conveying systems
? ? ? With the increasing attention of the country to environmental pollution and the higher requirements for emissions, pneumatic conveying systems have begun to develop rapidly, and various industries have also begun to use themPneumatic conveying systemThis not only increases production capacity, but also reduces costs. For the convenience of everyone's understanding, let's introduce the typical pneumatic conveying systems:
1、 Pneumatic conveying system
? ? ?It is a pneumatic conveying system that uses fans, Roots blowers, and centrifuges as gas sources, and a rotary feeder as a feeding device to continuously or intermittently press materials. The pneumatic conveying system has the characteristics of low conveying pressure, short conveying distance, and safe and reliable conveying. Suitable for dispersed transportation from one location to multiple locations, it plays a role in drying and grading materials, and is under positive pressure, so even if there are gaps at the joints of pipeline components, external air or rainwater will not enter. Compressed air or compressed inert gas can be used for gas transportation.
2、 Low vacuum negative pressure pneumatic conveying system in dilute phase
? ? ? Using vacuum pumps, centrifuges, and vacuum generators installed at the end of the conveying system, the air in the system is evacuated to form a negative pressure airflow below atmospheric pressure in the conveying pipeline. The material enters the pipeline together with the atmosphere from the starting nozzle. The airflow is transported to the end separator, and the material particles are separated from the airflow by gravity or centrifugal force. After dust removal, the gas is discharged into the atmosphere through a centrifugal fan or vacuum pump.
3、 Rotary valve high-pressure pneumatic conveying system
? ? ? This system is a pneumatic conveying system that uses two-stage Roots blowers or air compressors as gas power sources to generate high-pressure gas and continuously press materials. This system is suitable for transportation from one location to multiple locations, from multiple locations to one location, and from multiple locations to multiple locations. It has the advantages of high pressure and reliable sealing. It can also dry and grade materials. Suitable for medium to long-distance transportation, conveying powder and granular materials with high proportion and low wear. If the material is light and easy to flow uniformly, it can also automatically form a plug, thus forming a dense phase plug flow pneumatic conveying system.
4、 High pressure pneumatic conveying system for feeding tank
? ? ? The material is fed into the feeding tank (bin pump) from the hopper under the control of the feeding valve. The air compressor produces highly compressed gas and delivers the material to the designated material bin pump at a certain speed. After the separation of materials and gases, they are discharged into the atmosphere or connected to a dust removal air network after dust removal.
? ? ? ?This system is a dense phase high-pressure pneumatic conveying system that uses an air compressor as a gas power source to transport materials. This system has the advantages of low flow rate, low gas consumption, suitable for long-distance and large capacity transportation, and easy implementation of plug flow or fluidized transportation for materials with good breathability. It has the characteristics of low noise and minimal damage. Suitable for transporting materials with high abrasion properties such as cement, fly ash, mineral powder, casting sand, chemical raw materials, etc.
? ? ?ThereforePneumatic conveying systemIt is a huge and complex project, with different conveying methods for different materials, and different requirements for equipment in terms of conveying distance, conveying height, and other factors. Therefore, it is necessary to choose a manufacturer with rich experience. If you need pneumatic conveying equipment, please feel free to consult.