Treatment vessel having reduced outlet end diameter

A treatment vessel for treating lignocellulosic material, the treatment vessel comprising:

• a main section having an interior volume for holding and treating lignocellulosic material, the main section having a first end and a second end;
• an outlet section having an interior volume in fluid communication with the interior volume of the main section, the outlet section being conical or frustoconical and tapering from a first end joined to the second end of the main section towards a second end of the outlet section, wherein an outlet opening for discharging lignocellulosic material from the treatment vessel is provided at the second end of the outlet section;
• a conical body arranged within the treatment vessel, a vertex of the conical body pointing away from the main section;
• and
• an additional conical body joined base-to-base to the conical body;
• wherein the conical body is positioned such that the base thereof is positioned within a perpendicular distance from a transition plane defined by the junction between the first end of the outlet section and the second end of the main section, wherein the perpendicular distance is ¼ or less of the diameter of the main section, characterized in that a half angle of the conical body is 0.5-20° less than a half angle of the outlet section, and
• wherein a diameter of the base of the additional conical body is ¼ to ¾ of a diameter of the base of the conical body.

A treatment vessel for treating lignocellulosic material, the treatment vessel comprising:

• a main section having an interior volume for holding and treating lignocellulosic material, the main section having a first end and a second end;
• an outlet section having an interior volume in fluid communication with the interior volume of the main section, the outlet section being conical or frustoconical and tapering from a first end joined to the second end of the main section towards a second end of the outlet section, wherein an outlet opening for discharging lignocellulosic material from the treatment vessel is provided at the second end of the outlet section;
• a conical body arranged within the treatment vessel, a vertex of the conical body pointing away from the main section;
• and
• a dome-shaped or cupola-shaped body joined base-to-base to the conical body;
• wherein the conical body is positioned such that the base thereof is positioned within a perpendicular distance from a transition plane defined by the junction between the first end of the outlet section and the second end of the main section, wherein the perpendicular distance is ¼ or less of the diameter of the main section, characterized in that a half angle of the conical body is 0.5-20° less than a half angle of the outlet section, and
• wherein a diameter of the base of the dome-shaped or cupola-shaped body is ¼ to ¾ of a diameter of the base of the conical body.

A treatment vessel for treating lignocellulosic material, the treatment vessel comprising:

• a main section having an interior volume for holding and treating lignocellulosic material, the main section having a first end and a second end;
• an outlet section having an interior volume in fluid communication with the interior volume of the main section, the outlet section being conical or frustoconical and tapering from a first end joined to the second end of the main section towards a second end of the outlet section, wherein an outlet opening for discharging lignocellulosic material from the treatment vessel is provided at the second end of the outlet section;
• a conical body arranged within the treatment vessel, a vertex of the conical body pointing away from the main section;
• and
• at least one cylindrical body joined base-to-base to the conical body;
• wherein the conical body is positioned such that the base thereof is positioned within a perpendicular distance from a transition plane defined by the junction between the first end of the outlet section and the second end of the main section, wherein the perpendicular distance is ¼ or less of the diameter of the main section, characterized in that a half angle of the conical body is 0.5-20° less than a half angle of the outlet section, and
• wherein a diameter of the base of the at least one cylindrical body is ¼ to ¾ of a diameter of the base of the conical body.