Container for storing and transporting aggressive media, in particular bromine

Abstract

The present invention relates to a tank container with a raised manhole connector ( 2 ) and a domed cover ( 1 ) for closing the raised manhole connector ( 2 ), these being lined with lead for transporting aggressive contents, such as for example bromine, wherein the domed cover ( 1 ) and the raised manhole connector ( 2 ) have nickel sealing surfaces ( 22, 23, 24 ), which are produced in particular by means of deposition welding, and also to conventional tank containers retrofitted according to the invention and to methods for this.

1 . A container with raised manhole connector ( 2 ), which can be closed with a domed cover ( 1 ),
 wherein at least the inner wall of the container and of the raised manhole connector ( 2 ) is provided with a lead coating ( 9 ),   wherein a fastening flange ( 25 ) is provided around the top opening of the raised manhole connector ( 2 ),   wherein on the top side of the fastening flange ( 25 ) around the opening to the raised manhole connector ( 2 ), a nickel sealing surface ( 24 ) is applied as a seal against a domed cover ( 1 ),   wherein the nickel sealing surface ( 24 ) is aligned with the opening of the raised manhole connector ( 2 ) and the lead coating ( 9 ) extends to the upper edge of the nickel sealing surface ( 24 ).   
     
     
         2 . The container according to  claim 1 ,
 wherein an extension flange ( 28 ) is mounted on the fastening flange ( 25 ), and   wherein the nickel sealing surface ( 24 ) is located on the top of the extension flange ( 28 ).   
     
     
         3 . The domed cover ( 1 ) for a container according to  claim 1 ,
 wherein a nickel sealing surface ( 23 ) is provided on the bottom side of the domed cover ( 1 ) which nickel sealing surface is associated with the nickel sealing surface ( 24 ) of a raised manhole connector ( 2 ),   wherein the nickel sealing surface ( 23 ) is provided on the bottom side of the domed cover ( 1 ) in the peripheral region, via which the domed cover ( 1 ) rests on the nickel sealing surface ( 24 ) of a raised manhole connector ( 2 ) during operation, and the bottom surface of the domed cover ( 1 ), which is surrounded by the sealing surface ( 23 ) is coated with a surface layer of lead ( 8 ).   
     
     
         4 . The domed cover according to  claim 3 ,
 wherein the domed cover ( 1 ) has one or more through-holes ( 17 ) to connect fittings, and   wherein the layer of lead ( 8 ) extends along the bottom side of the domed cover ( 1 ) along the inner wall of the through-holes ( 17 ) and covers the inner wall.   
     
     
         5 . The domed cover ( 1 ) according to  claim 4 ,
 wherein nickel sealing surfaces ( 22 ) are provided on the top side of the domed cover ( 1 ) around the opening of the through-holes ( 17 ) in order to provide sealing with respect to a fitting,   wherein the nickel sealing surfaces ( 22 ) are aligned with the through-holes ( 17 ), and the layer of lead ( 8 ) extends to the upper edge of the nickel sealing surfaces ( 22 ).   
     
     
         6 . The domed cover ( 1 ) according to  claim 5 ,
 wherein the fittings are selected from valves ( 4 ) for loading and unloading the container, valves ( 6 ) for venting the container and valves ( 5 ) for introducing gas into the container, and a safety valve ( 7 ).   
     
     
         7 . The domed cover according to  claim 3 ,
 wherein the nickel sealing surfaces ( 22 ) on the top side of the domed cover ( 1 ) and the nickel sealing surface ( 23 ) on the bottom side of the domed cover ( 1 ) have been produced by deposition welding.   
     
     
         8 . The container according to  claim 1 ,
 wherein the nickel sealing surface ( 24 ) has been produced by deposition welding.   
     
     
         9 . A method for manufacturing a container and a domed cover according to  claim 1 ,
 wherein the nickel sealing surfaces ( 22 ,  23 ,  24 ) are produced by deposition welding on the material surface.   
     
     
         10 . The method for manufacturing a container according to  claim 2 ,
 wherein an extension flange ( 28 ), which is fitted to the fastening flange ( 25 ) and onto which the nickel sealing surface ( 24 ) is applied, is mounted on the fastening flange ( 25 ) of the raised manhole connector ( 2 ).   
     
     
         11 . The domed cover ( 1 ) for a container according to  claim 2 ,
 wherein a nickel sealing surface ( 23 ) is provided on the bottom side of the domed cover ( 1 ) which nickel sealing surface is associated with the nickel sealing surface ( 24 ) of a raised manhole connector ( 2 ),   wherein the nickel sealing surface ( 23 ) is provided on the bottom side of the domed cover ( 1 ) in the peripheral region, via which the domed cover ( 1 ) rests on the nickel sealing surface ( 24 ) of a raised manhole connector ( 2 ) during operation, and the bottom surface of the domed cover ( 1 ), which is surrounded by the sealing surface ( 23 ) is coated with a surface layer of lead ( 8 ).   
     
     
         12 . The domed cover according to  claim 11 ,
 wherein the domed cover ( 1 ) has one or more through-holes ( 17 ) to connect fittings, and   wherein the layer of lead ( 8 ) extends along the bottom side of the domed cover ( 1 ) along the inner wall of the through-holes ( 17 ) and covers the inner wall.   
     
     
         13 . The domed cover ( 1 ) according to  claim 12 ,
 wherein nickel sealing surfaces ( 22 ) are provided on the top side of the domed cover ( 1 ) around the opening of the through-holes ( 17 ) in order to provide sealing with respect to a fitting,   wherein the nickel sealing surfaces ( 22 ) are aligned with the through-holes ( 17 ), and the layer of lead ( 8 ) extends to the upper edge of the nickel sealing surfaces ( 22 ).   
     
     
         14 . The domed cover ( 1 ) according to  claim 13 ,
 wherein the fittings are selected from valves ( 4 ) for loading and unloading the container, valves ( 6 ) for venting the container and valves ( 5 ) for introducing gas into the container, and a safety valve ( 7 ).   
     
     
         15 . The domed cover according to  claim 4 ,
 wherein the nickel sealing surfaces ( 22 ) on the top side of the domed cover ( 1 ) and the nickel sealing surface ( 23 ) on the bottom side of the domed cover ( 1 ) have been produced by deposition welding.   
     
     
         16 . The domed cover according to  claim 5 ,
 wherein the nickel sealing surfaces ( 22 ) on the top side of the domed cover ( 1 ) and the nickel sealing surface ( 23 ) on the bottom side of the domed cover ( 1 ) have been produced by deposition welding.   
     
     
         17 . The domed cover according to  claim 6 ,
 wherein the nickel sealing surfaces ( 22 ) on the top side of the domed cover ( 1 ) and the nickel sealing surface ( 23 ) on the bottom side of the domed cover ( 1 ) have been produced by deposition welding.   
     
     
         18 . The container according to  claim 2 ,
 wherein the nickel sealing surface ( 24 ) has been produced by deposition welding.