The invention proposes a rotary filter intended for liquid/solid separation of a suspension, comprising a trough, a spraying device, and at least one disk which is non-rotatably connected to a main shaft, characterized in that:
each disk comprises a first series of at least one filter sector which is separated from a second series of at least one filter sector by means of two non-filtering zones,
the main shaft comprises a first pipe which communicates with the first series of at least one filter sector of each disk, and a second pipe which communicates with the second series of at least one filter sector of each disk,
said rotary filter comprises comb teeth.
The invention proposes a rotary filter intended for liquid/solid separation of a suspension, comprising a trough, a spraying device, and at least one disk which is non-rotatably connected to a main shaft, characterized in that:
each disk comprises a first series of at least one filter sector which is separated from a second series of at least one filter sector by means of two non-filtering zones,
the main shaft comprises a first pipe which communicates with the first series of at least one filter sector of each disk, and a second pipe which communicates with the second series of at least one filter sector of each disk,
said rotary filter comprises comb teeth.
The invention also proposes a filtration method.
B01D 29/64 - Regenerating the filter material in the filter by scrapers, brushes or the like, acting on the cake side of the filtering element
B01D 29/41 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type mounted transversely on the tube
B01D 29/94 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
B01D 29/96 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor in which the filtering elements are moved between filtering operationsParticular measures for removing or replacing the filtering elementsTransport systems for filters
B01D 35/12 - Devices for taking out of action one or more units of multi-unit filters, e.g. for regeneration
The invention relates to a rotary filter (10) for liquid/solid separation of a suspension, comprising a trough (12), a spray device (32) and at least one disc (14) which is rotatably connected to a main shaft (16), characterised in that: - each disc (14) comprises a first series (S1) of at least one filtering sector (50) which is separated from a second series (S2) of at least one filtering sector (50) by two non-filtering zones (54), - the main shaft (16) comprises a first pipe (56) which communicates with the first series (S1) of at least one filtering sector (50) of each disc (14) and a second pipe (58) which communicates with the second series (S2) of at least one filtering sector (50) of each disc (14), - said rotary filter (10) comprises comb teeth (102). The invention also relates to a filtering method.
B01D 29/41 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type mounted transversely on the tube
B01D 29/64 - Regenerating the filter material in the filter by scrapers, brushes or the like, acting on the cake side of the filtering element
B01D 29/78 - Handling the filter cake in the filter for purposes other than for regenerating for washing
B01D 29/94 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
B01D 29/96 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor in which the filtering elements are moved between filtering operationsParticular measures for removing or replacing the filtering elementsTransport systems for filters
B01D 35/12 - Devices for taking out of action one or more units of multi-unit filters, e.g. for regeneration
The invention relates to a rotary filter (10) for liquid/solid separation of a suspension, comprising a trough (12), a spray device (32) and at least one disc (14) which is rotatably connected to a main shaft (16), characterised in that: - each disc (14) comprises a first series (S1) of at least one filtering sector (50) which is separated from a second series (S2) of at least one filtering sector (50) by two non-filtering zones (54), - the main shaft (16) comprises a first pipe (56) which communicates with the first series (S1) of at least one filtering sector (50) of each disc (14) and a second pipe (58) which communicates with the second series (S2) of at least one filtering sector (50) of each disc (14), - said rotary filter (10) comprises comb teeth (102). The invention also relates to a filtering method.
B01D 29/41 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type mounted transversely on the tube
B01D 29/64 - Regenerating the filter material in the filter by scrapers, brushes or the like, acting on the cake side of the filtering element
B01D 29/78 - Handling the filter cake in the filter for purposes other than for regenerating for washing
B01D 29/94 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
B01D 29/96 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor in which the filtering elements are moved between filtering operationsParticular measures for removing or replacing the filtering elementsTransport systems for filters
B01D 35/12 - Devices for taking out of action one or more units of multi-unit filters, e.g. for regeneration
Some embodiments are directed to a filter for use with a drain, the filter comprising: at least two external manifolds; and multiple vertical plates that each includes a tube connected to one of the at least two external manifolds, wherein two adjacent vertical plates of the multiple vertical plates are connected to different manifolds of the at least two manifolds, each of the multiple vertical plates also including at least one filter element, each of the at least one filter element including: at least two drains; and a cloth defining compartments configured such that the drain is insertable therein.
B01D 29/39 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type
B01D 29/15 - Supported filter elements arranged for inward flow filtration
B01D 29/52 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
B01D 29/66 - Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
B01D 29/94 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
Some embodiments relate to a filtering sector for a filtering disc of a rotary filter, which includes: a structural element made up of a ribbed inner draining medium and a frame that surrounds the draining medium, which is provided with a connecting tube; and a filtering fabric that covers the structural element, wherein the structural element has a thickness which increases progressively towards the connecting tube and in that the draining medium is made up of a single sheet. The draining medium is made up of a single ribbed sheet provided with an alternation of channels, the depth of which increases as it gets closer to the mouth of the tube of the medium.
The filter (1) with vertical plates (2), according to the invention, comprises plates (2) each comprising a tube (200) connected to an external manifold (5, 50, 51, 52), said filter (1) being characterised in that it comprises at least two external manifolds (5, 50, 51, 52), in that, for all the plates (2), two adjacent plates (2) are connected to two different external manifolds (5, 50, 51, 52) and in that each plate (2) comprises at least one filtering element (22), each filtering element (22) being constituted by at least two drains (220) and a cloth (221), the cloth (221) having compartments (222) into each of which a drain (220) is inserted. By not opening two adjacent plates (2) at the same time, only one of the two cakes (6) facing each other is detached, instead of the two. The construction of these plates (2) allows a slight swelling of the cloth (221) during plate opening and therefore limited movement of the cake (6). This allows the space provided between the plates (2) to be reduced without a risk of clogging that will prevent the filter (1) from functioning when the cakes (6) fall and without a risk of the removed cakes (6) being pressed against the plates (2) that are filtering. This makes it possible to increase the number of plates (2) in the filter (1).
B01D 29/15 - Supported filter elements arranged for inward flow filtration
B01D 29/39 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type
B01D 29/52 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
B01D 29/54 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
B01D 29/66 - Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
B01D 29/94 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
The filter (1) with vertical plates (2) according to the invention comprises plates (2) each comprising a nozzle (200) connected to an external manifold (5, 50, 51, 52), the said filter (1) is characterized in that it comprises at least two external manifolds (5, 50, 51, 52) and in that, for all the plates (2), two plates (2) which are adjacent are connected to two different external manifolds (5, 50, 51, 52). By not stripping two adjacent plates (2) at the same time, only one of the two filter cakes (6) facing one another is detached, rather than both. In this way it is possible to reduce the space left between the plates (2) without the risk of causing blockages fatal to the operation of the filter (1) as the filter cakes (6) drop off. This makes it possible to increase the number of plates (2) in the filter (1).
B01D 29/15 - Supported filter elements arranged for inward flow filtration
B01D 29/39 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type
B01D 29/52 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
B01D 29/54 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
B01D 29/66 - Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
B01D 29/94 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
The filter (1) with vertical plates (2), according to the invention, comprises plates (2) each comprising a tube (200) connected to an external manifold (5, 50, 51, 52), said filter (1) being characterised in that it comprises at least two external manifolds (5, 50, 51, 52), in that, for all the plates (2), two adjacent plates (2) are connected to two different external manifolds (5, 50, 51, 52) and in that each plate (2) comprises at least one filtering element (22), each filtering element (22) being constituted by at least two drains (220) and a cloth (221), the cloth (221) having compartments (222) into each of which a drain (220) is inserted. By not opening two adjacent plates (2) at the same time, only one of the two cakes (6) facing each other is detached, instead of the two. The construction of these plates (2) allows a slight swelling of the cloth (221) during plate opening and therefore limited movement of the cake (6). This allows the space provided between the plates (2) to be reduced without a risk of clogging that will prevent the filter (1) from functioning when the cakes (6) fall and without a risk of the removed cakes (6) being pressed against the plates (2) that are filtering. This makes it possible to increase the number of plates (2) in the filter (1).
B01D 29/15 - Supported filter elements arranged for inward flow filtration
B01D 29/39 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type
B01D 29/52 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
B01D 29/54 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
B01D 29/66 - Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
B01D 29/94 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
The present invention relates to a filtering sector for a filtering disc of a rotary filter, which sector includes: a structural element (1) made up of a ribbed inner draining medium (2) and a frame (4) that surrounds the draining medium (2), which is provided with a connecting tube (10); and a filtering fabric (3) that covers the structural element (1), characterised in that the structural element (1) has a thickness which increases progressively towards the connecting tube (10) and in that the draining medium (2) is made up of a single sheet (20). The draining medium (2) is made up of a single ribbed sheet provided with an alternation of channels (22), the depth of which increases as it gets closer to the mouth of the tube of said medium.
The present invention relates to a filtering sector for a filtering disc of a rotary filter, which sector includes: a structural element (1) made up of a ribbed inner draining medium (2) and a frame (4) that surrounds the draining medium (2), which is provided with a connecting tube (10); and a filtering fabric (3) that covers the structural element (1), characterised in that the structural element (1) has a thickness which increases progressively towards the connecting tube (10) and in that the draining medium (2) is made up of a single sheet (20). The draining medium (2) is made up of a single ribbed sheet provided with an alternation of channels (22), the depth of which increases as it gets closer to the mouth of the tube of said medium.
The present invention relates to a device and a method for reducing friction between two plates (4, 5) of a filtration unit, said plates being rotated relative to one another by being subjected to axial pressing forces, said plates being supported by the longitudinal end of a drum (1) secured to a rotary shaft (3) mounted on a bearing (6) and having internal collectors (11), and the opposite end of a casing (2) which is rotatably locked and supported by said shaft, respectively, characterized in that it includes at least one pulling system (8) engaging with the casing (2) by exerting a force intended to at least partially compensates for the axial forces pressing the plate (5) against the plate (4), in order to reduce friction while ensuring that tight mutual contact is maintained.
B01D 25/12 - Filter presses, i.e. of the plate or plate and frame type
B01D 33/21 - Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
B01D 33/48 - Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
The present invention relates to a device and a method for reducing friction between two plates (4, 5) of a filtration unit, said plates being rotated relative to one another by being subjected to axial pressing forces, said plates being supported by the longitudinal end of a drum (1) secured to a rotary shaft (3) mounted on a bearing (6) and having internal collectors (11), and the opposite end of a casing (2) which is rotatably locked and supported by said shaft, respectively, characterised in that it includes at least one pulling system (8) engaging with the casing (2) by exerting a force intended to at least partially compensates for the axial forces pressing the plate (5) against the plate (4), in order to reduce friction while ensuring that tight mutual contact is maintained.
B01D 33/21 - Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
B01D 33/48 - Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
The present invention relates to a device and a method for reducing friction between two plates (4, 5) of a filtration unit, said plates being rotated relative to one another by being subjected to axial pressing forces, said plates being supported by the longitudinal end of a drum (1) secured to a rotary shaft (3) mounted on a bearing (6) and having internal collectors (11), and the opposite end of a casing (2) which is rotatably locked and supported by said shaft, respectively, characterised in that it includes at least one pulling system (8) engaging with the casing (2) by exerting a force intended to at least partially compensates for the axial forces pressing the plate (5) against the plate (4), in order to reduce friction while ensuring that tight mutual contact is maintained.
B01D 33/21 - Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
B01D 33/48 - Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
b) for recovering the solid particles, characterized in that the discs (2) are vertically arranged so that the lower portion thereof is submerged in buckets (4) covered with deflectors (41) and including means for scrapping solid material deposits on the outer walls thereof.
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 33/58 - Handling the filter cake in the filter for purposes other than for regenerating
B01D 33/76 - Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
B01D 33/44 - Regenerating the filter material in the filter
15.
Device for extracting cakes resulting from pressurized disc filtration, and associated extraction method
b) for recovering solid particles and having an extension, in the lower portion thereof, in the form of a hatch (10) defined between at least two temporary blocking members (11, 12), characterized in that each temporary blocking member includes a rotary shaft (100) transversally arranged in the hatch and bearing at least one set (101, 102, 103) of two diametrically opposite radial fins having a global surface substantially corresponding to the cross-section of the hatch (10) and optionally at least one set of two radial forks (104, 105), as well as peripheral sealing means(102) mounted on the inner wall of the hatch opposite the end edge of said fins. The invention also relates to an associated extraction method.
B01D 33/21 - Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
B01D 33/76 - Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
B65G 53/66 - Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material
B01D 33/68 - Retarding cake deposition on the filter during the filtration period, e.g. using stirrers
16.
SCRAPPING DEVICE FOR A PRESSURISED FILTRATION PLANT
The present invention relates to a pressurised filtration plant that includes: a sealed tank (1) in which discs (2) are provided including filtering sectors (20) carried by a rotary shaft (3) and connected to collectors within said shaft, a dispenser (10) enabling the egress of filtrates, the discharge of spinning air and the intake of blowing air for releasing the spun cakes, at least one duct for supplying a liquid laden with solid particles, at least one duct or discharging the filtrates, and a hopper (Ib) for recovering the solid particles, characterised in that the discs (2) are vertically arranged so that the lower portion thereof is submerged in buckets (4) covered with deflectors (41) and including means for scrapping solid material deposits on the outer walls thereof.
B01D 33/21 - Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
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 33/76 - Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
17.
DEVICE FOR EXTRACTING CAKES RESULTING FROM PRESSURISED DISC FILTRATION, AND ASSOCIATED EXTRACTION METHOD
The present invention relates to a device for extracting cakes resulting from pressurised filtration from a sealed tank (1) in which rotary filters (2) are provided, the tank being provided with a hopper (Ib) for recovering solid particles and having an extension, in the lower portion thereof, in the form of a hatch (10) defined between at least two temporary blocking members (11, 12), characterised in that each temporary blocking member includes a rotary shaft (100) transversally arranged in the hatch and bearing at least one set (101, 102, 103) of two diametrically opposite radial fins having a global surface substantially corresponding to the cross-section of the hatch (10) and optionally at least one set of two radial forks (104, 105), as well as peripheral sealing means (102) mounted on the inner wall of the hatch opposite the end edge of said fins. The invention also relates to an associated extraction method.
B01D 33/21 - Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
B01D 33/76 - Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
The present invention relates to a pressurised filtration plant that includes: a sealed tank (1) in which discs (2) are provided including filtering sectors (20) carried by a rotary shaft (3) and connected to collectors within said shaft, a dispenser (10) enabling the egress of filtrates, the discharge of spinning air and the intake of blowing air for releasing the spun cakes, at least one duct for supplying a liquid laden with solid particles, at least one duct or discharging the filtrates, and a hopper (Ib) for recovering the solid particles, characterised in that the discs (2) are vertically arranged so that the lower portion thereof is submerged in buckets (4) covered with deflectors (41) and including means for scrapping solid material deposits on the outer walls thereof.
B01D 33/21 - Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
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 33/76 - Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
19.
DEVICE FOR EXTRACTING CAKES RESULTING FROM PRESSURISED DISC FILTRATION, AND ASSOCIATED EXTRACTION METHOD
The present invention relates to a device for extracting cakes resulting from pressurised filtration from a sealed tank (1) in which rotary filters (2) are provided, the tank being provided with a hopper (Ib) for recovering solid particles and having an extension, in the lower portion thereof, in the form of a hatch (10) defined between at least two temporary blocking members (11, 12), characterised in that each temporary blocking member includes a rotary shaft (100) transversally arranged in the hatch and bearing at least one set (101, 102, 103) of two diametrically opposite radial fins having a global surface substantially corresponding to the cross-section of the hatch (10) and optionally at least one set of two radial forks (104, 105), as well as peripheral sealing means (102) mounted on the inner wall of the hatch opposite the end edge of said fins. The invention also relates to an associated extraction method.
B01D 33/21 - Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
B01D 33/76 - Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
The invention relates to a filtration device that comprises a disc (1) with a rim (2) covering and stiffening a plurality of filtration sectors (3) connected to taps (40) provided on the outer wall of a rotary main shaft (4) containing inner discharge channels (41) and fit-inserted into said taps and into a crown comprising two parts concentric to the shaft (4), one which is secured to the shaft while the other is removable, characterised in that said rim (2) is provided with openings (20) each intended for receiving a removable connection flange (5) bearing, on the one hand, a radial strut (50) clamped between two adjacent sectors (3) for the relative clamping thereof and interacting, on the other hand, with a spring quick fastener (6) for locking the strut (50) under tension between the sectors (3). The invention also relates to a method for assembling and maintaining said filtration device.
The invention relates to a filtration device that comprises a disc (1) with a rim (2) covering and stiffening a plurality of filtration sectors (3) connected to taps (40) provided on the outer wall of a rotary main shaft (4) containing inner discharge channels (41) and fit-inserted into said taps and into a crown comprising two parts concentric to the shaft (4), one which is secured to the shaft while the other is removable, characterised in that said rim (2) is provided with openings (20) each intended for receiving a removable connection flange (5) bearing, on the one hand, a radial strut (50) clamped between two adjacent sectors (3) for the relative clamping thereof and interacting, on the other hand, with a spring quick fastener (6) for locking the strut (50) under tension between the sectors (3). The invention also relates to a method for assembling and maintaining said filtration device.
patents
