Solid component mixing apparatus and associated method

A solid component mixing apparatus for preparing a material used for making sand cores, the solid component mixing apparatus comprising:

• a vertically extending mixing chamber with a rectangular cross-section, the contour of the vertically extending mixing chamber being formed by first, second, third and fourth vertically extending sidewalls, the first and second vertically extending sidewalls arranged facing one another and the third and fourth side vertically extending walls arranged facing one another, the first and second vertically extending sidewalls respectively having a first width and a second width, the second and third vertically extending sidewalls respectively having a third width and a fourth width, each of the first and second widths being greater than each of the third and fourth widths, the vertically extending mixing chamber having a through passage extending between and through a first end and a second end of the vertically extending mixing chamber, the first end being located above the second end;
• a first dosing device having an inlet through which a sand is introduced into the first dosing device, and an outlet communicated with the vertically extending mixing chamber for supplying the sand into the vertically extending mixing chamber;
• a second dosing device having an inlet through a solid additive is introduced into the second dosing device, and an outlet communicated with the vertically extending mixing chamber for supplying a solid additive into the vertically extending mixing chamber:
• the vertically extending mixing chamber having a first inlet communicated with the outlet of the first dosing device and a second inlet communicated with the outlet of the second dosing device, the second inlet of the vertically extending mixing chamber being located below the first inlet of the vertically extending mixing chamber and arranged in the first vertically extending sidewall of the vertically extending mixing chamber;
• and
• a first baffle configured to direct the sand inside the first dosing device towards the first vertically extending wall of the vertically extending mixing chamber.