A rotary pressure filter, comprising a filter drum and a housing. A sensor is attached to the housing and emits light through a light-permeable section of the housing in the direction of a filter cake. The sensor receives light reflected from the filter cake through the light-permeable section of the housing. A processing unit compares properties of the emitted light with those of the received light and determines an absolute thickness of the filter cake and/or a change in the thickness of the filter cake over a pre-determined time. The invention further relates to a corresponding method.

The present invention relates to a rotary pressure filter comprising a filter drum, a housing, and at least one separating element which divides a process chamber in a gas-tight manner into a plurality of process portions. A sensor is arranged on the side of at least one separating element that faces the housing. The sensor comprises a coil and a rod which is arranged inside the coil. The rod is designed to be displaced in the coil on the basis of a change in the distance of the separating element from the sensor. The invention further relates to a method for detecting wear of a separating element of a rotary pressure filter.

A vacuum and/or pressure filtration device includes a filter drum defining a drum axis and it is supported rotatably around the drum axis. The filter drum includes an outer jacket, by which a plurality of filter cells are formed, which extend along the drum axis, which are arranged adjacent to each other all around the drum axis, and which are equipped on their outer side with a filter medium; and an inner jacket, which is arranged adjacent to the outer jacket, which has an inner jacket outer surface, which limits the filter cells radially inside such that by the inner jacket outer surface a plurality of draining surfaces are formed, on which the liquid passing through the respective filter medium during filtration of the suspension can drain as a filtrate. The filtration device filters a suspension having solid and liquid components.

A vacuum and/or pressure filtration device includes a filter drum defining a drum axis and it is supported rotatably around the drum axis. The filter drum includes an outer jacket, by which a plurality of filter cells are formed, which extend along the drum axis, which are arranged adjacent to each other all around the drum axis, and which are equipped on their outer side with a filter medium; and an inner jacket, which is arranged adjacent to the outer jacket, which has an inner jacket outer surface, which limits the filter cells radially inside such that by the inner jacket outer surface a plurality of draining surfaces are formed, on which the liquid passing through the respective filter medium during filtration of the suspension can drain as a filtrate. The filtration device filters a suspension having solid and liquid components.

A process for the separation of the components of a solid/liquid mixture. The process Includes the use of a rotary pressure filter apparatus having improved capacity.

A process for the separation of the components of a solid/liquid mixture. The process Includes the use of a rotary pressure filter apparatus having improved capacity.

A filter drum including: a drive shaft via which the filter drum is rotatably supportable and rotatably drivable; a filter drum body which is formed in a manner separated from the drive shaft, to which the drive shaft extends centrally and which filter drum body includes a first drum end wall, a second drum end wall, and a drum jacket wall which extends along the drive shaft between the first drum end wall and the second drum end wall and connects the first drum end wall and the second drum end wall to each other; and a first clamping ring set and a second clamping ring set, corresponding to the first drum end wall and the second drum end wall, respectively, by which, in a respective manner, the first drum end wall and the second drum end wall are, via radial clamping, fixedly connected to the drive shaft such that a driving torque applied to the drive shaft is correspondingly transmittable from the drive shaft to the first drum end wall and/or the second drum end wall and, thereby, to the filter drum body via the first clamping ring set and/or the second clamping ring set, respectively. The filter drum can be used in a vacuum and/or pressure filtration device for the filtration of a suspension having solid and liquid components.

A filter drum including: a drive shaft via which the filter drum is rotatably supportable and rotatably drivable; a filter drum body which is formed in a manner separated from the drive shaft, to which the drive shaft extends centrally and which filter drum body includes a first drum end wall, a second drum end wall, and a drum jacket wall which extends along the drive shaft between the first drum end wall and the second drum end wall and connects the first drum end wall and the second drum end wall to each other; and a first clamping ring set and a second clamping ring set, corresponding to the first drum end wall and the second drum end wall, respectively, by which, in a respective manner, the first drum end wall and the second drum end wall are, via radial clamping, fixedly connected to the drive shaft such that a driving torque applied to the drive shaft is correspondingly transmittable from the drive shaft to the first drum end wall and/or the second drum end wall and, thereby, to the filter drum body via the first clamping ring set and/or the second clamping ring set, respectively. The filter drum can be used in a vacuum and/or pressure filtration device for the filtration of a suspension having solid and liquid components.

A filter drum including: a drive shaft via which the filter drum is rotatably supportable and rotatably drivable; a filter drum body which is formed in a manner separated from the drive shaft, to which the drive shaft extends centrally and which filter drum body includes a first drum end wall, a second drum end wall, and a drum jacket wall which extends along the drive shaft between the first drum end wall and the second drum end wall and connects the first drum end wall and the second drum end wall to each other; and a first clamping ring set and a second clamping ring set, corresponding to the first drum end wall and the second drum end wall, respectively, by which, in a respective manner, the first drum end wall and the second drum end wall are, via radial clamping, fixedly connected to the drive shaft such that a driving torque applied to the drive shaft is correspondingly transmittable from the drive shaft to the first drum end wall and/or the second drum end wall and, thereby, to the filter drum body via the first clamping ring set and/or the second clamping ring set, respectively. The filter drum can be used in a vacuum and/or pressure filtration device for the filtration of a suspension having solid and liquid components.

A vacuum and/or pressure filtration device includes a filter drum defining a drum axis and it is supported rotatably around the drum axis. The filter drum includes an outer jacket, by which a plurality of filter cells are formed, which extend along the drum axis, which are arranged adjacent to each other all around the drum axis, and which are equipped on their outer side with a filter medium; and an inner jacket, which is arranged adjacent to the outer jacket, which has an inner jacket outer surface, which limits the filter cells radially inside such that by the inner jacket outer surface a plurality of draining surfaces are formed, on which the liquid passing through the respective filter medium during filtration of the suspension can drain as a filtrate. The filtration device filters a suspension having solid and liquid components.