Abstract

A pusher centrifuge includes a rotatable filter drum having a drum body and a piston that are configured to be reciprocated axially relative to one another, a filter drum drive shaft rigidly connected to the filter drum, a hydraulic push mechanism for generating an axial oscillating push force and connected to the filter drum so as to cause the relative reciprocating movement between the piston and the drum body, a hydraulic pump including a pump input shaft and is in fluid connection with the hydraulic push mechanism, and a drive motor including at least one output shaft connected to the pump input shaft and the filter drum drive shaft to actuate both the pump input shaft and the filter drum drive shaft. The at least one output shaft of the drive motor is connected to the pump input shaft in a manner without an intervening gearbox, thereby forming a direct drive.

IPC Classes  ?

• B04B 9/04 - Direct drive
• B04B 3/02 - Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneously sifting or filtering discharging solid particles from the bowl by means co-axial with the bowl axis and moving to and fro, i.e. push-type centrifuges
• B04B 9/08 - Arrangement or disposition of transmission gearing

Abstract

Filter drum for a vacuum and/or pressure filtration device for the filtration of a suspension, which comprises a solid and a liquid, comprising: 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 includes a first drum end wall and a second drum end wall as well as 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.

IPC Classes  ?

• B01D 33/067 - Construction of the filtering drums, e.g. mounting or sealing arrangements

Abstract

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.

IPC Classes  ?

• B01D 33/073 - Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
• B01D 33/067 - Construction of the filtering drums, e.g. mounting or sealing arrangements
• B01D 33/09 - Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration with surface cells independently connected to pressure distributors
• B01D 33/74 - Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging filtrate
• B01D 33/06 - Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
• B01D 33/80 - Accessories

Abstract

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.

IPC Classes  ?

• B01D 33/13 - Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for outward flow filtration with surface cells independently connected to pressure distributors
• B01D 33/067 - Construction of the filtering drums, e.g. mounting or sealing arrangements
• B01D 33/74 - Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging filtrate
• B01D 35/30 - Filter housing constructions
• B01D 33/09 - Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration with surface cells independently connected to pressure distributors
• B01D 33/80 - Accessories
• B01D 33/06 - Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums

Abstract

The invention relates to a vacuum and/or pressure drum filter device for filtering a solid material from a suspension, which is formed from the solid material and a liquid. Said device comprises a device housing (10), a rotatable filter drum (30), which defines a filter drum longitudinal axis (L1) and which is arranged in the device housing (10), a gas supply line (50) for supplying a gas into the device housing (10) and a peeling blade (172). The gas supply line (50) comprises a first gas outlet device (52) having one or a plurality of gas outlet openings (54) which are formed to extend along the filter drum longitudinal axis (L1) and from which the gas in the device housing (10) emerges, and wherein the one or more gas outlet openings (54) are arranged radially outside of the filter drum (30), and on one side (172b) of the peeling blade (172) facing away from the filter drum (30).

IPC Classes  ?

• B01D 33/073 - Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
• B01D 33/46 - Regenerating the filter material in the filter by scrapers, brushes or the like acting on the cake-side of the filtering element
• B01D 33/60 - Handling the filter cake in the filter for purposes other than for regenerating for washing

Abstract

A multi-cell filter device can have: a filter drum (1), which has a horizontally extending longitudinal axis and which is rotatable about its longitudinal axis and defines a jacket surface (3); a plurality of filter cells (5) which are formed on the outside of the jacket surface (3) and which are each open radially to the outside and are distributed about the circumference of the filter drum (1) and are arranged alongside one another in the circumferential direction of the filter drum and which are separated from one another by means of respective radial filter cell walls (7) which are arranged at angular intervals from each other corresponding to a circumference width of the filter cells (5); and a suspension feeder device (41) by which a suspension (33) to be filtered is fed to the filter drum (1), wherein the suspension feeder device (41) has a suspension input area with at least one suspension input opening (45-1, 45-2) through which the suspension (33) to be filtered is input into the filter cells (5), wherein the suspension input area (S) is arranged over the filter drum (1) such that, during the rotary operation of the filter drum (1), the suspension (33) to be filtered can be inserted from the at least one suspension input opening (45-1, 45-2) from above into the radially outwardly open filter cells (5).

IPC Classes  ?

• B01D 33/09 - Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration with surface cells independently connected to pressure distributors
• B01D 33/60 - Handling the filter cake in the filter for purposes other than for regenerating for washing
• B01D 33/72 - Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding

Abstract

In at least one embodiment, a filter device for filtering out of solid substance from a solid-liquid-mixture where the filter device includes a bearing shaft; a rotation body attached to the bearing shaft and supported by the bearing shaft to be rotatable; a single filter cell formed on the rotation body with a filter structure attached to the rotation body for filtering out the solid substance and a connection channel formed in the rotation body that extends from a filter structure outlet side to an outlet opening formed adjacent to the bearing shaft and via which the connection channel is permanently connected with an intermediate connection channel formed in the bearing shaft; a liquid discharge line connected with or formed by the intermediate connection channel; a plurality of branch-off lines which are branched-off from the liquid discharge line; and a control device having a valve assembly.

IPC Classes  ?

• B01D 33/09 - Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration with surface cells independently connected to pressure distributors
• B01D 33/00 - Filters with filtering elements which move during the filtering operation
• B01D 33/067 - Construction of the filtering drums, e.g. mounting or sealing arrangements
• B01D 33/74 - Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging filtrate
• B01D 33/80 - Accessories
• B01D 33/82 - Means for pressure distribution