Expansion of application range of industrial air cannons in cement plants

　　As we all know, in the processing of bulk materials such as cement production, failures such as arching, skinning, and blockage often occur, which not only interfere with normal production, but also cause great economic losses and even serious safety accidents.

　　Due to the characteristics of powder and granular materials, although a relatively complete consideration has been made in the process and equipment design, the above problems cannot be completely solved. A good method of using, such as automatic percussion rappers, blasting with compressed air and high-pressure water cannon impact etc. In the 1970s, with the rise of new dry-process cement manufacturing technology, a blockage-clearing and flow-assisting device called "Air cannon" appeared abroad. The sudden ejection is like a blasting effect to clear the blockage. It was quickly adopted in cement industry and promoted in many departments, such as power plants, coal mines, concrete processing plants, foundries, steel plants, mines, docks etc. All have achieved good results. In the initial stage, industrial air cannon was mainly used in the suspension preheater of clinker sintering system and the arching of cone part of silo in cement industry. Later, their application range was gradually expanded. Famous foreign manufacturers of air cannons including: Japanese EXEN and Fresh Enterprise, French Standard Industries, German Agrichar and VSR, and American Martin Engineer.