The air cannon is (also known as air arch-breaking flow-aiding machine,or block clearer) a special device for preventing or eliminating the materials' arching,sticking,blocking in various type of silo,hopper,piping crotch and draw shaft and slide slope.

It can widely used in the Coal, Coking,Thermalpower, Chemical, Electric, Metallurgical,Cement and other industries.(It can be used on plastic,woood,iron and steel ,concrete hopper.) Such as the underground  coal bunker,coal washing plant (loading storehouse ,coal bin ),Cement preheater kiln,thermal power plant(coal-storing,raw coal bunker),Iron and steel plant (sintering plant) Coking plant (coal-storing,blending bunker ,coal tower) ,chemical factory, mine, concrete processing plant with bunker,hopper,conveying pipeline and draw shaft.

The air cannon mainly applys the pressure priciple,use air as working medium,setting the compressed air in the cannon body free instantly,which can result in strong impact airflow,and then making a kind of external force to the blocked and adhered material inside the hopper,finally,making the materials flow smoothly again.

In a word ,free of public hazard and pollution,it can replace the dangerous and money-consuming arch-breaking flow-aiding methods with poor effects.Such as manual poking,mechanical vibration,explosive explosions,wind blowing press,wearing plate,which can decrease the labor intensity ,ensure the safe production and bring intangible benefits to the company.It is recognized as the mast advanced ,economic,optimal,environmental,and safest arch-breaking flow-aiding equipment.