Mixing device, in particular bulk material mixing device

A mixing device, comprising:

• at least one mixing container with a receiving region for receiving a material to be mixed, the mixing container comprises a first end wall having an opening, a second end wall, a circumferential lateral wall, and a pivot door attached to the first end wall to cover the opening,
• wherein the mixing container has a cylindrical basis shape in which the receiving region comprises a middle region and two end regions arranged on opposite sides of the middle region,
• wherein the first end wall, the second end wall, and the circumferential lateral wall delimit the receiving region;
• a discharge opening in the circumferential lateral wall;
• a shutter for closing the discharge opening;
• at least one mixing unit configured for mixing the material to be mixed that is present in the mixing container, wherein the at least one mixing unit is supported one-sidedly and comprises at least two mixer shafts, wherein the mixer shafts of the mixing unit comprise rotary axes, which extend in parallel;
• and
• 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 one of the two end regions of the mixing container, wherein the at least one cutter element of the lump breaker unit is arranged at least partly between the at least two mixer shafts of the at least one mixing unit, wherein a rotary axis of the cutter element and the rotary axes of the mixer shafts of the mixing unit are arranged offset with respect to one another, wherein
• the pivot door is different from the shutter element.

A mixing device, comprising:

• a cylindrical mixing container that includes a flat front wall having a front opening, a flat rear wall, and a cylindrical sleeve that has a top inlet, lateral sides that connect the flat front wall to the flat rear wall, and a curved bottom having a bottom outlet;
• a door attached to the flat front wall by hinges to open and close the front opening, the door extends parallel to the flat front wall;
• a shaft bearing located in the door;
• a lump breaker having one or more blades attached to a shaft, the shaft is rotatably supported by the shaft bearing with a rotary axis perpendicular to the door;
• a mixing shaft that extends perpendicular from the flat rear wall, and
• one or more bulges that outwardly protrude from the curved bottom of the cylindrical sleeve underneath one or more of the mixing shaft and the shaft of the lump breaker.