Abstract: A device has a flange including a base body with a main contact face and a further flange including a further base body with a further main contact face. In a mounted state the flange is connected to the further flange with a sealing element therebetween. The flange has a recess which adjoins the main contact face and in which the sealing element is arranged. The further flange has an extension which protrudes from the further base body at the further main contact face and engages in the recess and contacts the sealing element. The extension positions and centers the sealing element and/or compresses the sealing element. The flange and the further flange jointly delimit a groove which forms part of the recess and partially receives the sealing element, and a groove width increases from an opening of the groove to a low point of the groove.

Abstract: A mixing device, in particular bulk material mixing device, with at least one mixing container comprises a receiving region for receiving a material to be mixed, with at least one mixing unit which is configured for mixing the material to be mixed that is present in the mixing container, and with at least one lump breaker unit comprising at least one cutter element which protrudes into the mixing container, wherein the at least one lump breaker unit is arranged in a frontal region of the mixing container.

Abstract: A mixing device, in particular bulk material mixing device, with at least one mixing container comprises a receiving region for receiving a material to be mixed, with at least one mixing unit which is configured for mixing the material to be mixed that is present in the mixing container, and with at least one lump breaker unit comprising at least one cutter element which protrudes into the mixing container, wherein the at least one lump breaker unit is arranged in a frontal region of the mixing container.