Method for the removal of deposits on the internal walls of industrial furnaces of bunkers

Abstract

In a method for the removal of deposits from the inner walls of industrial furnaces and bunkers or for the destruction of material accumulations by shelling with an industrial cannon, the shells include an explosive charge and an impact detonator and are driven out of the cannon by compressed air with a controllable travel speed.

1 . A method for the removal of deposits from the internal walls of industrial furnaces and bunkers or for the destruction of material collections by shelling with ammunition from an industrial cannon, comprising the steps of loading the cannon with a shell having a shell body ( 1 ) with a charge of explosive or pyrotechnical material, and shooting the shell onto a target by compressed air supplied to the cannon.  
   
   
       2 . A method according to  claim 1 , wherein the industrial cannon is operated by pressurized air of a pressure ranging from 10 to 40 bar.  
   
   
       3 . A method according to  claim 2 , wherein the air pressure is in the range of 15-25 bar.  
   
   
       4 . A method according to  claim 1 , wherein the shell comprises a shell body ( 1 ,  2 ,  3 ) with an impact detonator ( 4 ) for detonating the charge of explosive or pyrotechnical material.  
   
   
       5 . A method according to  claim 4 , wherein the body of the shell consists of a rear part ( 1 ) which narrows down toward its rear end and is provided with stabilization fins ( 2 ) and a front part ( 3 ) in the form of a cover, the rear part ( 1 ) and the front part ( 3 ) jointly forming a chamber for receiving the charge.  
   
   
       6 . A method according to  claim 1 , wherein the impact detonator ( 4 ) is arranged at the front end of the shell.