Rotary press and method for cleaning a rotary press
A rotary press ( 10 ), in particular a rotary tablet press, includes a rotor ( 14 ) rotatable about an axis of rotation ( 12 ) and a cleaning device ( 16 ) for cleaning the rotary press ( 10 ). The cleaning device ( 16 ) includes at least one spray opening ( 18 ), in particular a plurality of spray openings ( 18 ), for spraying a cleaning agent ( 20 ). The cleaning device ( 16 ) is coupled to the rotor ( 14 ) and configured such that the spray opening ( 18 ) can be rotated about the axis of rotation ( 12 ) by rotating the rotor ( 14 ). A method for cleaning such a rotary press ( 10 ) is also described.
1 . A rotary press ( 10 ) comprising: a rotor ( 14 ) rotatable about an axis of rotation ( 12 ), wherein the rotor comprises an upper tableting punch ( 30 ) and/or a lower tableting punch ( 31 ) and
a cleaning device ( 16 ) for cleaning the rotary press ( 10 ), wherein the cleaning device ( 16 ) comprises a spray opening ( 18 ) for spraying a cleaning agent ( 20 ), wherein the cleaning device ( 16 ) is coupled to the rotor ( 14 ) and configured such that the spray opening ( 18 ) can be rotated about the axis of rotation ( 12 ) by rotating the rotor ( 14 ).
2 . The rotary press ( 10 ) according to claim 1 , wherein a static spray nozzle ( 22 ) is arranged on the spray opening ( 18 ).
3 . The rotary press ( 10 ) according to claim 1 , wherein a rotary spray nozzle ( 24 ) is arranged on the spray opening ( 18 ).
4 . The rotary press ( 10 ) according to claim 1 , wherein the cleaning device ( 16 ) comprises an internal feed channel ( 26 , 27 , 29 ) for guiding the cleaning agent ( 20 ) to the spray opening ( 18 ), wherein the internal feed channel ( 26 , 27 , 29 ) is arranged at least in portions within the rotor ( 14 ).
5 . The rotary press ( 10 ) according to claim 4 , wherein the internal feed channel ( 26 , 27 , 29 ) is formed at least in the portions as a bore within the rotor ( 14 ).
6 . The rotary press ( 10 ) according to claim 1 , wherein the cleaning device ( 16 ) comprises an external feed channel ( 28 ) for guiding the cleaning agent ( 20 ) to the spray opening ( 18 ), wherein the external feed channel ( 28 ) is arranged at least in portions outside the rotor ( 14 ).
7 . The rotary press ( 10 ) according to claim 1 , wherein the cleaning device ( 16 ) comprises a cleaning punch ( 32 ), wherein the cleaning punch ( 32 ) is configured to be interchangeable with the lower tableting punch ( 31 ) and/or the upper tableting punch ( 30 ), wherein the spray opening ( 18 ) is arranged in or on the cleaning punch ( 32 ), wherein at least one channel ( 34 ) for guiding the cleaning agent ( 20 ) to the spray opening ( 18 ) is arranged within the cleaning punch ( 32 ).
8 . The rotary press ( 10 ) according to claim 1 , wherein the cleaning device ( 16 ) comprises a guide element ( 36 ), wherein the guide element ( 36 ) is configured to be fixable to the rotor ( 14 ), wherein the spray opening ( 18 ) is arranged in or on the guide element ( 36 ), wherein a guide channel ( 38 ) for guiding the cleaning agent ( 20 ) to the spray opening ( 18 ) is arranged within the guide element ( 36 ).
9 . The rotary press ( 10 ) according to claim 1 , wherein the cleaning device ( 16 ) comprises an inlet ( 40 ) for guiding the cleaning agent ( 20 ) into the rotor ( 14 ).
10 . The rotary press ( 10 ) according to claim 1 , wherein the cleaning device ( 16 ) comprises a pump ( 42 ) for pumping the cleaning agent ( 20 ).
11 . The rotary press ( 10 ) according to claim 1 , wherein the rotary press is a rotary tablet press.
12 . The rotary press ( 10 ) according to claim 1 , wherein the cleaning device ( 16 ) comprises a plurality of spray openings ( 18 ) as the spray opening ( 18 ).
13 . A method for cleaning a rotary press ( 10 ) according to claim 1 , comprising the steps of:
rotating the spray opening ( 18 ) about the axis of rotation ( 12 ) by rotating the rotor ( 14 );
spraying the cleaning agent ( 20 ) through the spray opening ( 18 ).
14 . The method according to claim 13 , further comprising the step of:
pumping the cleaning agent ( 20 ) in a circuit.
15 . The method according to claim 13 , further comprising the step of:
collecting and disposing of the sprayed cleaning agent ( 20 ) after spraying the cleaning agent ( 20 ) once through the spray opening ( 18 ).
16 . The method according to claim 13 , further comprising the step of:
guiding the cleaning agent ( 20 ) through an internal feed channel ( 26 , 27 , 29 ), an external feed channel ( 28 ), a channel ( 34 ) of a cleaning punch ( 32 ), and/or a guide channel ( 38 ) of a guide element.
17 . The method according to claim 13 , further comprising the step of:
closing the spray opening ( 18 ) and/or an internal feed channel ( 26 , 27 , 29 ).