Closed-circuit grinding installation

A closed-circuit grinding installation for comminuting material to be ground, comprising:

• at least one high-pressure roller press,
• at least one apparatus for sifting out fine material from the material to be ground which is situated within the closed circuit,
• at least two apparatuses for conveying the material to be ground which is situated within the closed circuit,
• the at least one high-pressure roller press being arranged at a spatial distance from and approximately at the same height as the at least one apparatus for sifting out fine material from the material to be ground which is situated within the closed circuit,
• the at least two apparatuses for conveying the material to be ground which is situated within the closed circuit, when viewed from the side, intersect approximately in the center of the spatial distance, and
• the spatial distance is at least five times one of a width or length of the high-pressure roller press, and
• the at least one apparatus for sifting out fine material from the material to be ground which is circulating within the closed circuit has at least one V-shaped cascade sifter, wherein the V-shaped cascade sifter is arranged transversely to the direction of conveyance of the at least two apparatuses for conveying the material to be ground which is situated within the closed circuit.

A closed-circuit grinding installation for comminuting material to be ground, comprising:

• at least one high-pressure roller press,
• at least one apparatus for sifting out fine material from the material to be ground which is situated within the closed circuit,
• at least two apparatuses for conveying the material to be ground which is situated within the closed circuit,
• the at least one high-pressure roller press being arranged at a spatial distance from and approximately at the same height as the at least one apparatus for sifting out fine material from the material to be ground which is situated within the closed circuit,
• the at least two apparatuses for conveying the material to be ground which is situated within the closed circuit, when viewed from the side, intersect approximately in the center of the spatial distance, and
• the spatial distance being at least five times one of a width or length of the high-pressure roller press, and
• the closed-circuit grinding installation being constructed in a ship, wherein the at least one high-pressure roller press is arranged in an aft third of the ship or on a boundary between the aft third and a center third of the ship.

A closed-circuit grinding installation for comminuting material to be ground, said closed-circuit grinding installation comprising:

• at least one high-pressure roller press,
• at least one apparatus for sifting out fine material from the material to be ground which is situated within the closed circuit,
• at least two apparatuses for conveying the material to be ground which is situated within the closed circuit,
• the at least one high-pressure roller press being arranged at a spatial distance from and approximately at the same height as the at least one apparatus for sifting out fine material from the material to be ground which is situated within the closed circuit,
• wherein the at least two apparatuses for conveying the material to be ground which is situated within the closed circuit, when viewed from the side, intersect approximately in the center, and
• wherein the spatial distance is at least five times one of the width or length of the high-pressure roller press, and
• wherein a movable apparatus for feeding the material to be ground, which feeds fresh material in a selective manner onto one of the at least two apparatuses for conveying the material to be ground which is situated within the closed circuit, is situated approximately at a point of intersection between the at least two apparatuses for conveying the material to be ground which is situated within the closed circuit.