Screen plate for a separating device for classifying bulk material

A screen plate for a separating device for classifying bulk material, comprising:

• wherein the screen plate has a profile region which has a profile having depressions and elevations extending in the direction of a takeoff side, wherein the profile is describable by a circle arc of a first circle K1 and by a circle arc of a second circle K2, and the circles K1 and K2 are disposed adjacent to one another, wherein the circle arc of the first circle K1 with a radius r1 describes the elevations and the circle arc of the second circle K2 with a radius r2 describes the depressions, with each depression in a takeoff region undergoing transition into an opening which expands in the direction of the takeoff side, wherein the transition between the depression and the opening is formed by an opening edge with a width corresponding to the length of the radius r2 to 2*r2;
• wherein the profile is subject to r2>r1, with 0<r1/r2<1, and
• wherein either r1+r2=e or r1+r2<e;
• wherein when r1+r2=e, e corresponds to the distance between the circle center point M1 of K1 and the circle center point M2 of K2, and K1 and K2 contact one another at a point T0 at which the circle arcs merge and where −65°<α<0°, wherein α is an angle which defines the position of M2 relative to M1 in a cartesian coordinate system, if M1 and M2 are vertices of a right-angled triangle and e corresponds to the hypotenuse;
• and
• wherein when r1+r2<e and K1 and K2 do not contact one another, where the circle arcs are joined to one another by a common tangent through a point T1 of K1 and a point T2 of K2, and where −65°<α<65°.

A separating device for classifying bulk material, comprising:

• at least one screen plate and at least one separating element;
• wherein the at least one screen plate has a profile region which has a profile having depressions and elevations extending in the direction of a takeoff side, wherein the profile is describable by a circle arc of a first circle K1 and by a circle arc of a second circle K2, and the circles K1 and K2 are disposed adjacent to one another, wherein the circle arc of the first circle K1 with a radius r1 describes the elevations and the circle arc of the second circle K2 with a radius r2 describes the depressions, with each depression in a takeoff region undergoing transition into an opening which expands in the direction of the takeoff side, wherein the transition between the depression and the opening is formed by an opening edge with a width corresponding to the length of the radius r2 to 2*r2, characterized in that the profile is subject to r2<r1, with 0<r2/r1<1;
• wherein r1+r2=e or r1+r2<e;
• wherein when r1+r2=e, e corresponds to the distance between the circle center point M1 of K1 and the circle center point M2 of K2, and K1 and K2 contact one another at a point T0 at which the circle arcs merge, and wherein 0°<α<65°, wherein α is an angle which defines the position of M2 relative to M1 in a cartesian coordinate system if M1 and M2 are vertices of a right-angled triangle and wherein e corresponds to the hypotenuse of the triangle;
• and
• wherein when r1+r2<e and K1 and K2 do not contact one another, where the circle arcs are joined to one another by a common tangent through a point T1 of K1 and a point T2 of K2, and where −65°<α<65°;
• wherein the at least one separating element is disposed beneath the takeoff region of the at least one screen plate and has a separating edge;
• and
• wherein the separating edge of the at least one separating element has a profile like the at least one screen plate.

A separating device for classifying bulk material, comprising:

• at least one screen plate and at least one separating element;
• wherein the screen plate has a profile region which has a profile having depressions and elevations extending in the direction of a takeoff side, wherein the profile is describable by a circle arc of a first circle K1 and by a circle arc of a second circle K2, and the circles K1 and K2 are disposed adjacent to one another, wherein the circle arc of the first circle K1 with a radius r1 describes the elevations and the circle arc of the second circle K2 with a radius r2 describes the depressions, with each depression in a takeoff region undergoing transition into an opening which expands in the direction of the takeoff side, wherein the transition between the depression and the opening is formed by an opening edge with a width corresponding to the length of the radius r2 to 2*r2;
• wherein the profile is subject to r2>r1, with 0<r1/r2<1, and
• wherein either r1+r2=e or r1+r2<e;
• wherein when r1+r2=e, e corresponds to the distance between the circle center point M1 of K1 and the circle center point M2 of K2, and K1 and K2 contact one another at a point T0 at which the circle arcs merge and where −65°<α<0°, wherein α is an angle which defines the position of M2 relative to M1 in a cartesian coordinate system, if M1 and M2 are vertices of a right-angled triangle and e corresponds to the hypotenuse;
• and
• wherein when r1+r2<e and K1 and K2 do not contact one another, where the circle arcs are joined to one another by a common tangent through a point T1 of K1 and a point T2 of K2, and where −65°<α<65°;
• wherein the at least one separating element is disposed beneath the takeoff region of the at least one screen plate and has a separating edge;
• and
• wherein the separating edge of the at least one separating element has a profile like the at least one screen plate.