Device for receiving and/or conducting bulk materials and/or powders with a flange connection device, and sealing element

A device for receiving and/or conducting bulk materials and/or powders, comprising:

• a flange connection device with a flange comprising a base body with a main contact face;
• and
• a further flange comprising a further base body with a further main contact face;
• and
• a sealing element,
• wherein in a mounted state the flange is connected to the further flange,
• wherein the main contact face of the flange and the further main contact face of the further flange lie against one another in touch contact in the mounted state,
• wherein the sealing element, in the mounted state, is arranged between the flange and the further flange,
• wherein the flange has a recess which adjoins the main contact face and in which the sealing element is at least partially arranged when in the mounted state,
• wherein the recess has a flat bottom,
• wherein the flange connection device forms an interior space,
• wherein the flange forms a partial interior space of the interior space,
• wherein the recess has a recess side wall delimiting the recess in a direction pointing away from the partial interior space defined by the flange,
• wherein the recess side wall is angled to a vertical,
• wherein the recess side wall and the flat bottom span an angle of more than 90°,
• wherein the further flange has an extension which protrudes from the further base body at the further main contact face and in the mounted state engages at least partially in the recess and in the mounted state contacts the sealing element,
• wherein the flange defines the partial interior space configured as a conduit for the bulk materials and/or powders,
• wherein the extension has an extension side wall which is arranged facing away from the partial interior space of the further flange, wherein the extension side wall adjoins the further main contact face and is angled relative to a further inner face of the further flange,
• wherein an angle spanned between the extension side wall and the further main contact face is approximately 80°,
• wherein the extension is configured for positioning and centering of the sealing element and/or for defined compression of the sealing element,
• wherein the flange and the further flange jointly delimit a groove which forms part of the recess and is configured to partially receive the sealing element,
• wherein a groove width of the groove increases starting from an opening of the groove as far as a low point of the groove,
• wherein the sealing element in the mounted state forms an inner face facing the interior space, and
• wherein the inner face of the sealing element in the mounted state is arranged flush with the inner face of the flange and flush with the further inner face of the further flange.