Mixing and delivery method arrangement and pump for supplying small particles suspended in a liquid to form slurry for delivery

A mixing and delivery arrangement for supplying small particles suspended in a liquid to form a slurry for delivery, the mixing and delivery arrangement comprising:

• a container having an open top, an inner bottom and an inner wall limiting an inner space;
• a mixing and delivery pump having:
• a first shaft having a first distal end and a first proximal end;
• a rotor connected to the first distal end of the first shaft and arranged at the inner bottom of the inner space of the container;
• a first power device connected to the first proximal end of the first shaft so that the rotor is rotatable about a first rotation axis by means of the first power device, wherein the first power device is located outside the inner space of the container;
• a stator having stator blades, wherein the stator coaxially surrounding the first shaft and wherein the stator being arranged at least partly between the first distal end of the first shaft and the proximal end of the first shaft;
• a pump having at least one inlet, which is located in a stator space between two stator blades of the stator, and an outlet;
• and
• an outlet pipe having a second inlet opening connected to the outlet of the pump and a second outlet opening located outside the inner space of the container;
• wherein the rotor comprises a rim member that is coaxial with the first shaft and a plurality of rotor blades extending between the first shaft and the rim member, each rotor blade being in the form of a flat elongated plate member that is tilted and/or twisted with respect to a first reference plane perpendicular to the first rotation axis of the first shaft, each rotor blade extending perpendicularly with respect to the first rotation axis of the first shaft between the first shaft and the rim member, wherein the distance between a leading edge of each rotor blade and the inner bottom of the container being smaller than the distance between a trailing edge of each rotor blade and the inner bottom of the container,
• wherein the container comprises an inner space, which has the form of a cylinder or a truncated cone, wherein the inner space is axially limited at one end by the inner bottom, which is circular, and radially limited by the inner wall, and the rotor has a diameter that is between about 85% and about 95% of the diameter of the inner bottom of the container,
• wherein the pump of the mixing and delivery pump is located in the stator space between two stator blades of the stator, the pump having an impeller connected to a second distal end of a second shaft having a second proximal end connected to a second power device for rotating the impeller about a second rotation axis, and wherein the pump has a pump housing for housing the impeller, wherein the inlet, which is located in a stator space between two stator blades of the stator, is provided in the pump housing in the form of an axial inlet, and wherein the outlet of the pump is provided in the pump housing in the form of a tangential outlet,
• wherein the second power device is located outside the inner space of the container.