Transport tank and transporting method thereof

Abstract

A transport inner bag and a pressure inner bag are loaded in a tank body of a tank container. A supply-discharge opening for the transport inner bag is provided in a position corresponding to a tank supply-discharge opening, and cargo is filled through the opening. A supply-discharge opening for the pressure inner bag is provided in a position corresponding to a hatch of the tank body, and air is filled through the opening to expand the pressure inner bag, so that a space between the transport inner bag and an inner surface of the tank body is filled as well as the gap in between. This prevents the transport inner bag from moving in the tank body in transporting in a state that the cargo is not fully loaded in the transport inner bag, so that the breakage of the transport inner bag caused by the movement is prevented.

1 . A transport tank having a tank body and a first inner bag to be loaded inside of said tank body removably, said first inner bag having a second supply-discharge opening to be fitted in a first supply-discharge opening of said tank body for loading a cargo, said transport tank comprising: 
 at least one second inner bag, disposed between said first inner bag containing said cargo and an inner surface of said tank body, to expand by filling of filler for holding said cargo to prevent said first inner bag from moving in said tank body during transportation.    
     
     
         2 . A transport tank as claimed in  claim 1 , wherein said first and second inner bags are made from a synthetic resin.  
     
     
         3 . A transport tank as claimed in  claim 2 , wherein said cargo is put into said first inner bag after or while pre-filling said filler in said second inner bag.  
     
     
         4 . A transport tank as claimed in  claim 3 , wherein size of said second inner bag adapts to an amount of said cargo.  
     
     
         5 . A transport tank as claimed in  claim 3 , wherein said second inner bag has the same capacity as said tank body and expands when said cargo is discharged from said first inner bag.  
     
     
         6 . A transport tank as claimed in  claim 5 , wherein said filler is any of gasses, liquids or powder and granular materials.  
     
     
         7 . A transporting method for transporting cargo by use of a first inner bag to be loaded inside of a tank body removably, said first inner bag having a second supply-discharge opening to be fitted in a first supply-discharge opening of said tank body for loading said cargo, said transporting method comprising the step of: 
 expanding at least one second inner bag, which is disposed between said first inner bag containing said cargo and an inner surface of said tank body, by filling of filler for holding said cargo to prevent said first inner bag from moving in said tank body during transportation.    
     
     
         8 . A transporting method as claimed in  claim 7 , wherein said first and second inner bags are made from a synthetic resin.  
     
     
         9 . A transporting method as claimed in  claim 8 , wherein said cargo is put into said first inner bag after or while pre-filling said filler in said second inner bag.  
     
     
         10 . A transporting method as claimed in  claim 9 , wherein size of said second inner bag adapts to an amount of said cargo.  
     
     
         11 . A transporting method as claimed in  claim 9 , wherein said second inner bag has the same capacity as said tank body and expands when said cargo is discharged from said first inner bag.  
     
     
         12 . A transporting method as claimed in  claim 11 , wherein said filler is any of gasses, liquids or powder and granular materials.