AU2016342466A1 - Elongated sealing member for a pressure filter and pressure filter - Google Patents
Elongated sealing member for a pressure filter and pressure filter Download PDFInfo
- Publication number
- AU2016342466A1 AU2016342466A1 AU2016342466A AU2016342466A AU2016342466A1 AU 2016342466 A1 AU2016342466 A1 AU 2016342466A1 AU 2016342466 A AU2016342466 A AU 2016342466A AU 2016342466 A AU2016342466 A AU 2016342466A AU 2016342466 A1 AU2016342466 A1 AU 2016342466A1
- Authority
- AU
- Australia
- Prior art keywords
- sealing member
- elongated sealing
- filter
- base portion
- elongated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 138
- 239000000853 adhesive Substances 0.000 claims abstract description 42
- 230000001070 adhesive effect Effects 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims description 33
- 239000004744 fabric Substances 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- -1 CO) Polymers 0.000 claims description 4
- 244000043261 Hevea brasiliensis Species 0.000 claims description 4
- 229920000459 Nitrile rubber Polymers 0.000 claims description 4
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 4
- 229920005558 epichlorohydrin rubber Polymers 0.000 claims description 4
- 229920003052 natural elastomer Polymers 0.000 claims description 4
- 229920001194 natural rubber Polymers 0.000 claims description 4
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 4
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 4
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 239000005060 rubber Substances 0.000 claims description 3
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 229920006311 Urethane elastomer Polymers 0.000 claims description 2
- 229920005549 butyl rubber Polymers 0.000 claims description 2
- 229920006341 elastomeric alloy Polymers 0.000 claims description 2
- 239000000706 filtrate Substances 0.000 claims description 2
- 229920001973 fluoroelastomer Polymers 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 229920002379 silicone rubber Polymers 0.000 claims description 2
- 239000004945 silicone rubber Substances 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims description 2
- 229920006132 styrene block copolymer Polymers 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- 229920006344 thermoplastic copolyester Polymers 0.000 claims description 2
- 229920006345 thermoplastic polyamide Polymers 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/127—Filter presses, i.e. of the plate or plate and frame type with one or more movable filter bands arranged to be clamped between the press plates or between a plate and a frame during filtration, e.g. zigzag endless filter bands
- B01D25/1275—Filter presses, i.e. of the plate or plate and frame type with one or more movable filter bands arranged to be clamped between the press plates or between a plate and a frame during filtration, e.g. zigzag endless filter bands the plates or the frames being placed in a non-vertical position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/127—Filter presses, i.e. of the plate or plate and frame type with one or more movable filter bands arranged to be clamped between the press plates or between a plate and a frame during filtration, e.g. zigzag endless filter bands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
- B01D25/215—Construction of the filter plates, frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/28—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating
- B01D25/282—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating for drying
- B01D25/285—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating for drying by compression using inflatable membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/09—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with filtering bands, e.g. movable between filtering operations
- B01D29/096—Construction of filtering bands or supporting belts, e.g. devices for centering, mounting or sealing the filtering bands or the supporting belts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/34—Seals or gaskets for filtering elements
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Filtration Of Liquid (AREA)
- Gasket Seals (AREA)
- Ventilation (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The invention relates to an elongated sealing member (19) for a vertical pressure filter (1). The elongated sealing member (19) comprises adhesive (12), a base portion (20), a ridge portion (21), and an intermediate portion (22) between the base portion (20) and the ridge portion (21). The base portion (20) comprises a plane side (29). The base portion (20) has opposite fastening portions (23) extending in traverse directions in relation to a longitudinal direction of the elongated sealing member (19), and the adhesive (12) is provided at the plane side (29) of the base portion (20). The invention relates also to a vertical pressure filter (1) comprising an elongated sealing member (19).
Description
ELONGATED SEALING MEMBER FOR A PRESSURE FILTER AND PRESSURE FILTER
Field of the invention
The invention relates to an elongated sealing member for a vertical pressure filter as defined in the preamble of independent claim 1.
The invention also relates to a vertical pressure filter as defined in claim 24.
Objective of the invention
The object of the invention is to provide an elongated sealing member for reliable sealing in a vertical pressure filter.
Short description of the invention
The method elongated sealing member is characterized by the definitions of independent claim 1.
Preferred embodiments of the elongated sealing member are defined in the dependent claims 2 to 23.
The vertical pressure filter of the invention is correspondingly characterized by the definitions of claim 24.
Preferred embodiments of the vertical pressure filter are defined in the dependent claims 25 to 34.
List of figures
In the following the invention will described in more detail by referring to the figures, of which
Figure 1 shows is side view a vertical pressure filter according to an embodiment in a closed state of a filter pack of the vertical pressure filter,
Figure 2 shows the vertical pressure filter shown in figure 1 in an open state of the filter pack of the vertical pressure filter,
Figure 3 shows in cross section a detail of the vertical pressure filter shown in figure 1 in a closed state of the filter pack of the vertical pressure filter,
Figure 4 shows in cross section a detail of the vertical pressure filter shown in figure 1 in a closed state of the filter pack of the vertical pressure filter,
Figure 5 shows in shows in cross section a detail of a movable filter plate of the vertical pressure filter shown in figure 1,
Figure 6 shows a section of the elongated sealing member of the vertical pressure filter shown in figure 1,
Figures 7 and 8 shows in shows in cross section the elongated sealing member shown in figure 6,
Figure 9 shows a section of a first alternative embodiment of the elongated sealing member,
Figure 10 shows in shows in cross section the elongated sealing member shown in figure 9,
Figure 11 shows a section of a second alternative embodiment of the elongated sealing member,
Figure 12 shows in shows in cross section the elongated sealing member shown in figure 11,
Figure 13 shows a section of a third alternative embodiment of the elongated sealing member, and
Figures 14 and 15 shows in shows in cross section the elongated sealing member shown in figure 13.
Detailed description of the invention
The invention relates to an elongated sealing member for a vertical pressure filter 1 and to a vertical pressure filter 1.
First the elongated sealing member 19 for a vertical pressure filter 1 and some embodiments and variants of the elongated sealing member 19 will be described in greater detail.
The elongated sealing member 19 comprises adhesive 12.
The elongated sealing member 19 comprises a base portion 20, a ridge portion 21, and an intermediate portion 22 between the base portion 20 and the ridge portion 21.
The base portion 20 comprises a plane side 29
The base portion 20 has opposite fastening portions 23 extending in traverse directions in relation to a longitudinal direction of the elongated sealing member 19.
The adhesive 12 is provided at the plane side 29 of the base portion 20.
An advantage with an elongated sealing member 19 having such configuration is that the ridge portion 21 can adapt to the form of the upward facing surface section 9 of the endless movable filter fabric belt 6 and prevents effectively gaps to be formed between the elongated sealing member 19and the upward facing surface section 9 of the endless movable filter fabric belt 6. Another advantage is that the intermediate portion 22 forms a large portion of the elongated sealing member 19 that presses against the upward facing surface section 9 of the endless movable filter fabric belt 6 in the closed state of the filter pack 2. An advantage is that adhesive 12 provides for additional sealing preventing fluid from passing between the elongated sealing member 19 and the surface of the vertical pressure filter 1 to which the elongated sealing member 19 is fastened. An advantage is that the adhesive 12 on the elongated sealing member 19 facilitates fastening of the elongated sealing member 19.
The elongated sealing member 19 is preferably, but not necessarily, completely formed of elastically deformable material. An advantage of this is that the elongated sealing member 19 can easily adapt to the form of the upward facing surface section 9 of the endless movable filter fabric belt 6, because the elongated sealing member 19 contains no elastically undeformable parts such as parts of metal.
The outer surface of the elongated sealing member 19 is preferably, but not necessarily, completely formed of elastically deformable material. An advantage of this is that the elongated sealing member 19 can easily adapt to the form of the upward facing surface section 9 of the endless movable filter fabric belt 6. In such case the elongated sealing member 19 is preferably, but not necessarily, free of metal.
The base portion 20 has preferably, but not necessarily, a rectangular cross section. An advantage of this is that a rectangular cross section facilitates mounting of the elongated sealing member 19. Another advantage of this is that a rectangular cross section creates an even pressure on the plane side 29 of the base portion 20, which means that the adhesive 12 is evenly pressed already when the filter plates 3 for the first time are brought into the closed state.
The base portion 20 has preferably, but not necessarily, first opposite side planes 30, which are essentially perpendicular with respect to the plane side 29 of the base portion 20. An advantage of this is that it facilitates mounting of the elongated sealing member 19. Another advantage of this is that the first opposite can press against vertical side walls of the he circumferential groove 11 in said filter plate.
The height A of the base portion 20 as measured in a direction perpendicular to the plane side 29 of the base portion 20 can be between 1 and 5 mm, preferable between 1 and 3 mm, such as about 2 mm.
The width B of the base portion 20 as measured in a direction along to the plane side 29 of the base portion 20 can be between 40 and 50 mm, preferable between 42 and 46 mm, such as about 44 mm. An advantage of this is that the width B of the base portion 20 is so wide that the elongated sealing member 19 can centralize itself in a circumferential groove 11 in a lower surface 4 of a horizontally arranged and vertically movable filter plate 3 by pressing against possible third opposite side planes 32 in the circumferential groove 11 in the lower surface 4 of the horizontally arranged and vertically movable filter plate 3. Another advantage of this is that the width B of the base portion 20 is so wide that opposite fastening portions 23 of the base portion 20 can more easily reach under possible retainers 17 provided for keeping the elongated sealing member 19 in the circumferential groove 11 in the lower surface 4 of the horizontally arranged and vertically movable filter plate 3. Another advantage of this is that the width B of the base portion 20 is so wide that a large plane side 29 is created for adhesive 12, which presses against a possible plane surface 33 forming a bottom of the circumferential groove 11 in the lower surface 4 of the horizontally arranged and vertically movable filter plate 3, which in turn increases the sealing effect between the elongated sealing member 19 and the horizontally arranged and vertically movable filter plate 3. Another advantage of this is that the width B of the base portion 20 is so wide that a large plane side 29 is created for adhesive 12, so that the adhesive better can retain the elongated sealing member 19 in the circumferential groove 11 in the lower surface 4 of the horizontally arranged and vertically movable filter plate 3.
Adhesive 12 is preferably, but not necessarily, provided on 30 to 100 %, such as on 75 to 95 %, of the plane side 29 of the base portion 20 of the elongated sealing member 19.
The intermediate portion 22 can have a partly undulating profile between the ridge portion 21 and the base portion 20.
The intermediate portion 22 can have a rounded edge at the base portion 20. The radius of the rounded edge can be between 1 and 3 mm, preferably about 2 mm.
The intermediate portion 22 may have opposite second opposite side planes 31, which extend essentially perpendicularly to the plane side 29 of the base portion 20. An advantage of this is that such configuration of the intermediate portion 22 makes distribution of pressure even on the adhesive 12 when the filter plates 3 are brought into the closed state.
The height C of the intermediate portion 22 as measured in a direction perpendicular to the plane side 29 of the base portion 20 may be between 7 and 13 mm, preferably between 8 and 10 mm, such as about 9 mm. An advantage of this is that the intermediate portion 22 on one hand is so high that a sufficient pressure is subjected on the adhesive 12, but that the intermediate portion 22 on the other hand is so low that the ridge portion 21 can have a sufficient height to effectively press against the upward facing surface section 9 of the endless movable filter belt fabric 7.
The width D of the intermediate portion 22 as measured in a direction parallel with the plane side 29 of the base portion 20 may be between 30 and 40 mm, preferably between 32 and 38 mm, such as 36 mm. An advantage of this is that the intermediate portion 22 on one hand is so wide that a pressure is subjected on the adhesive 12 on a large area.
The intermediate portion 22 may, as shown in figures 6 to 12, comprise a first intermediate section 24 between the base portion 20 and the rounded ridge portion 21, and a second intermediate section 25 between the first intermediate section 24 and the base portion 20. The height E of the first intermediate section 24 may be between 2 and 5 mm, preferably between 2 and 4 mm, such as about 3 mm, and the height F of the second intermediate section 25 may be between 5 and 8 mm, preferably between 5 and 7 mm, such as about 6 mm.
The ridge portion 21 may be a rounded ridge portion 21. An advantage of this is a durable and wear-resistant ridge portion 21.
The height G of the ridge portion 21 as measured in a direction perpendicular to the plane side 29 of the elongated sealing member 19 may be between 1 and 4 mm, preferable between 1 and 3 mm, such as about 2 mm.
The width H of the ridge portion 21 as measured in a direction in parallel with the plane side 29 of the elongated sealing member 19 may be between 1 and 4 mm, preferable between 1 and 3 mm, such as about 2 mm.
The adhesive 12 may be being protected by a removable strip. An advantage of this is easy attachment of the elongated sealing member 19.
The elongated sealing member 19 is preferably, but not necessarily, of one-piece construction. An advantage with forming a seal 10 of a single elongated sealing member 19 is that less joints, possible only one joint, is formed in the seal 10, where the seal 10 can fail. To fasten a seal 10 in the form of a single elongated sealing member 19 by means of adhesive 12 is also quick and easy.
The elongated sealing member 19 comprises preferably, but no necessarily, a material having Shore A hardness between 40 and 100, preferably between 50 and 90.
The opposite fastening portions 23 of the base portion 20 may be at least partly formed of elongated metal profiles 26, as in the first alternative embodiment shown in figures 9 and 10.
The elongated sealing member 19 may, as in the second alternative embodiment shown in figures 11 and 12, comprise a first material 27 having Shore A hardness between 50 and 150, preferably between 90 and 150, and a second material 28 having Shore A hardness between 40 and 100, preferably between 50 and 90, so that by at least the opposite fastening portions 23 of the base portion 20 being made of the first material 27. An advantage of this is that a first material 27 having such hardness provides for sufficient flexible deformability to facilitate mounting of the elongated sealing member 19 but for sufficient rigidity to maintain the form of the base portion 20 elongated sealing member 19 and that a second material 28 having such flexible deformability to provide for sufficient sealing action.
The elongated sealing member 19 may comprise a first material 27 having Shore A hardness between 50 and 150, preferably between 90 and 150, and a second material 28 having Shore A hardness between 40 and 100, preferably between 50 and 90, so that by at least the ridge portion 21 being made of the second material 28. In such case, the elongated sealing member 19 is preferably, but not necessarily, made by first extruding one of the first material 27 and the second material 28 and thereafter by extruding the other of the first material 27 and the second material 28 onto said one of the first material 27 and the second material 28. In such case, the first material 27 is preferably, but not necessarily, in direct contact with the second material 28 i.e. without any intermediate material such as adhesive between the first material 27 and the second material 28. . An advantage of this is that the structure of the elongated sealing member intact, which has the advantage that fluids cannot leak through the elongated sealing member 19.
The elongated sealing member 19 comprising any of the following: Natural rubber (NR), Styrene butadiene rubber (SBR), Butyl rubber (HR), Nitrile rubber (NBR), Epichlorohydrin rubber (ECO, CO), Chloroprene rubber (CR), Urethane rubber (U), Fluoro rubber (FPM), Silicone rubber (Q), Chlorsulphonated polyethylene rubber (CSM), Ethylene propylene rubber (EPDM), Styrenic block copolymers (TPE-s), Polyolefin blends (TPE-o), Elastomeric alloys (TPE-v or TPV), Thermoplastic polyurethanes (TPU), Thermoplastic copolyester, and Thermoplastic polyamides.
The adhesive 12 is preferably, but not necessarily, elastically deformable after curing to withstand alternating opening state and closing state of the filter pack 2.
The adhesive 12 is preferably, but not necessarily, selected so that it can attach to elastomers and metals.
The adhesive 12 is preferably, but not necessarily, selected so that it retains its adhesive function at a temperature range between -10 and 90°C.
The adhesive 12 comprises preferably, but not necessarily, any of the following: a heat-activated adhesive, a heat-activated tape, an acrylic foam adhesive, and an acrylic foam tape.
In an embodiment, the adhesive 12 is an heat-activated tape and bonded to the elongated sealing member 19 by heat-activation. The heat-activated adhesive guarantees a durable none especially, but not excluding others, to elongated sealing members 19 made of EPDM and TPE rubber.
In an embodiment, the adhesive 12 is an acrylic foam tape. Based on the visco-elastic consistence of acrylic foam tapes, a high cohesiveness combined with a brilliant shock- and weathering resistance is achieved.
The elongated sealing member 19 is preferably, but not necessarily, symmetrical with respect to a center plane X that is vertical to the plane side 29,
Next the vertical pressure filter 1 and some embodiments and variants of the vertical pressure filter 1 will be described in greater detail.
The vertical pressure filter 1 comprises a filter pack 2 comprises a plurality of separate horizontally arranged and vertically movable filter plates 3, each having a lower surface 4 and an upper surface 5.
The vertical pressure filter 1 comprises an endless movable filter fabric belt 6 arranged in zigzag manner between the filter plates 3.
The vertical pressure filter 1 comprises closing and opening means 7 for vertically pressing said plurality of separate horizontally arranged and vertically movable filter plates 3 against each other into a closed state of the filter pack 2 to form filter chambers 8 between filter plates 3 and an upward facing surface sections 9 of the endless movable filter fabric belt 6 and for vertically moving said plurality of separate horizontally arranged and vertically movable filter plates 3 away from each other into an open state of the filter pack 2 to open said filter chambers 8.
The vertical pressure filter 1 comprises at least one elongated sealing member 19 as described earlier or according to an embodiment as described earlier arranged in a circumferential groove 11 in the lower surface 4 of at least one separate horizontally arranged and vertically movable filter plate, wherein said at least one elongated sealing member 19 is configured to press against the upward facing surface section 9 of the endless movable filter fabric belt 6 in the closed state of the filter pack 2 and wherein said at least one elongated sealing member 19 being fastened by means of adhesive 12.
An advantage is that adhesive 12 provides for additional sealing.
Another advantage is that a seal 10 of simple and less expensive construction can be used.
Another advantage is that the adhesive 12 provides for additional sealing by preventing fluid from passing between said at least one elongated sealing member 19 and the surface of the vertical pressure filter 1 to which said at least one elongated sealing member 19 is fastened.
Said at least one separate horizontally arranged and vertically movable filter plate 3 may, as shown in the figures, comprise a bottom plate 13, a frame 14 below the bottom plate 13, and an elastic and waterproof diaphragm 15 attached between the bottom plate 13 and the frame 14. In such case, the filter chamber 8 is in the closed state limited by the elastic and waterproof diaphragm 15, the endless movable filter fabric belt 6 and the frame 14 so that the filter chamber 8 has a volume. In such case, the vertical pressure filter 1 comprises inflating means for inflating fluid such as liquid or gas between the elastic and waterproof diaphragm 15 and the bottom plate 13 to reduce the volume of the filter chamber 8 in the closed state.
If said at least one separate horizontally arranged and vertically movable filter plate 3 comprise a bottom plate 13, a frame 14 below the bottom plate 13, and an elastic and waterproof diaphragm 15 attached between the bottom plate 13 and the frame 14, the filter chamber 8 may, as shown in the figures, be horizontally limited by the frame 14
If said at least one separate horizontally arranged and vertically movable filter plate 3 comprise a bottom plate 13, a frame 14 below the bottom plate 13, and an elastic and waterproof diaphragm 15 attached between the bottom plate 13 and the frame 14, the lower surface 4 of at least one separate horizontally arranged and vertically movable filter plate 3 may, as shown in the figures, be formed at the frame 14.
If said at least one separate horizontally arranged and vertically movable filter plate 3 comprise a bottom plate 13, a frame 14 below the bottom plate 13, and an elastic and waterproof diaphragm 15 attached between the bottom plate 13 and the frame 14, the frame 14 may, as shown in the figures, comprise channels for feeding material to be filtered such as slurry and fluids such as water and air into the filter chamber 8 in the closed state.
If said at least one separate horizontally arranged and vertically movable filter plate 3 comprise a bottom plate 13, a frame 14 below the bottom plate 13, and an elastic and waterproof diaphragm 15 attached between the bottom plate 13 and the frame 14, the bottom plate 13 may comprise a drainage screen 16 for supporting the endless movable filter fabric belt 6 and a drainage channel 18 in fluid connection with the drainage screen 16 for leading filtrate from the drainage screen 16 to the outside of the bottom plate 13, as shown in the figures.
The vertical pressure filter 1 comprises preferably, but not necessarily, retainers 17 for keeping said at least one elongated sealing member 19 in the circumferential groove 11. The purpose of such retainers 17 is to assure that said at least one elongated sealing member 19is in correct position and/or to provide for additional retaining action for keeping said at least one elongated sealing member 19 in the circumferential groove 11.
The seal 10 is preferably, but not necessarily, formed of a single elongated sealing member 19. An advantage with forming the seal 10 of a single elongated sealing member 19 is that less joints, possible only one joint, is formed in the seal 10, where the seal 10 can fail. To fasten a seal 10 in the form of a single elongated sealing member 19 by means of adhesive 12 is also quick and easy.
Said at least on elongated sealing member 19 comprises preferably, but not necessarily, adhesive 12, wherein said at least one elongated sealing member 19 comprising a base portion 20, a ridge portion 21, and an intermediate portion 22 between the base portion 20 and the ridge portion 21, wherein the base portion 20 comprising a plane side 29, wherein the base portion 20 having opposite fastening portions 23 extending in traverse directions in relation to a longitudinal direction of said at least one elongated sealing member 19, and wherein the adhesive 12 being provided between the plane side 29 of said at least one elongated sealing member 19 and the filter plate. An advantage with at least one elongated sealing member 19 having such configuration is that the ridge portion 21 can adapt to the form of the upward facing surface section 9 of the endless movable filter fabric belt 6 and prevents effectively gaps to be formed between said at least one elongated sealing member 19 and the upward facing surface section 9 of the endless movable filter fabric belt 6. Another advantage is that the intermediate portion 22 forms a large portion of said at least one elongated sealing member 19 that presses against the upward facing surface section 9 of the endless movable filter fabric belt 6 in the closed state of the filter pack 2. Said at least one elongated sealing member 19 is preferably, but not necessarily, symmetrical with respect to a center plane X that is vertical to the plane side 29 of said at least one elongated sealing member 19.
The circumferential groove 11 in the lower surface 4 of at least one separate horizontally arranged and vertically movable filter plate 3 has preferably, but not necessarily, third opposite side planes 32 and a plane surface 33 between the third opposite side planes 32.
It is apparent to a person skilled in the art that as technology advanced, the basic idea of the invention can be implemented in various ways. The invention and its embodiments are therefore not restricted to the above examples, but they may vary within the scope of the claims.
Claims (34)
- Claims1. An elongated sealing member (19) for a vertical pressure filter (1), characterized by the elongated sealing member (19) comprising adhesive (12), by the elongated sealing member (19) comprising a base portion (20), a ridge portion (21), and an intermediate portion (22) between the base portion (20) and the ridge portion (21), by the base portion (20) comprising a plane side (29), by the base portion (20) having opposite fastening portions (23) extending in traverse directions in relation to a longitudinal direction of the elongated sealing member (19), and by the adhesive (12) being provided at the plane side (29) of the base portion (20).
- 2. The elongated sealing member (19) according to claim 1, characterized by the elongated sealing member (19) being completely formed of elastically deformable material.
- 3. The elongated sealing member (19) according to claim 1, characterized by the outer surface of the elongated sealing member (19) being completely formed of elastically deformable material.
- 4. The elongated sealing member (19) according to claim 3, characterized by the elongated sealing member (19) being free of metal.
- 5. The elongated sealing member (19) according to any of the claims 1 to 4, characterized by the base portion (20) having a rectangular cross section.
- 6. The elongated sealing member (19) according to any of the claims 1 to 5, characterized by the base portion (20) having first opposite side planes (30), which are essentially perpendicular with respect to the plane side (29) of the base portion (20).
- 7. The elongated sealing member (19) according to any of the claims 1 to 6, characterized by the height A of the base portion (20) as measured in a direction perpendicular to the plane side (29) of the base portion (20) being between 1 and 5 mm, preferable between 1 and 3 mm, such as about 2 mm.
- 8. The elongated sealing member (19) according to any of the claims 1 to 7, characterized by the width B of the base portion (20) as measured in a direction along to the plane side (29) of the base portion (20) being between 40 and 50 mm, preferable between 42 and 46 mm, such as about 44 mm.
- 9. The elongated sealing member (19) according to any of the claims 1 to 8, characterized by the intermediate portion (22) having opposite second opposite side planes (31), which extend essentially perpendicularly to the plane side (29) of the base portion (20).
- 10. The elongated sealing member (19) according to any of the claims 1 to 9, characterized by the height C of the intermediate portion (22) as measured in a direction perpendicular to the plane side (29) of the base portion (20) being between 7 and 13 mm, preferably between 8 and 10 mm, such as about 9 mm.
- 11. The elongated sealing member (19) according to any of the claims 1 to 10, characterized by the width D of the intermediate portion (22) as measured in a direction parallel with the plane side (29) of the base portion (20) being between 30 and 40 mm, preferably between 32 and 38 mm, such as 36 mm.
- 12. The elongated sealing member (19) according to any of the claims 1 to 11, characterized by the ridge portion (21) being a rounded ridge portion (21).
- 13. The elongated sealing member (19) according to any of the claims 1 to 12, characterized by the height G of the ridge portion (21) as measured in a direction perpendicular to the plane side (29) of the elongated sealing member (19) being between 1 and 4 mm, preferable between 1 and 3 mm, such as about 2 mm.
- 14. The elongated sealing member (19) according to any of the claims 1 to 13, characterized by the width H of the ridge portion (21) as measured in a direction in parallel with the plane side (29) of the elongated sealing member (19) being between 1 and 4 mm, preferable between 1 and 3 mm, such as about 2 mm.
- 15. The elongated sealing member (19) according to any of the claims 1 to 14, characterized by the adhesive (12) being protected by a removable strip.
- 16. The elongated sealing member (19) according to any of the claims 1 to 15, characterized by the elongated sealing member (19) being of one-piece construction.
- 17. The elongated sealing member (19) according to any of the claims 1 to 16, characterized by the elongated sealing member (19) comprising a material having Shore A hardness between 40 and 100, preferably between 50 and 90.
- 18. The elongated sealing member (19) according to any of the claims 1 to 17, characterized by the opposite fastening portions (23) of the base portion (20) being at least partly formed of elongated metal profiles (26).
- 19. The elongated sealing member (19) according to any of the claims 1 to 16, characterized by the elongated sealing member (19) comprising a first material (27) having Shore A hardness between 50 and 150, preferably between 90 and 150, by the elongated sealing member (19) comprising a second material (28) having Shore A hardness between 40 and 100, preferably between 50 and 90, and by at least the opposite fastening portions (23) of the base portion (20) being made of the first material (27).
- 20. The elongated sealing member (19) according to any of the claims 1 to 16, characterized by the elongated sealing member (19) comprising a first material (27) having Shore A hardness between 50 and 150, preferably between 90 and 150, by the elongated sealing member (19) comprising a second material (28) having Shore A hardness between 40 and 100, preferably between 50 and 90, and by at least the ridge portion (21) being made of the second material (28).
- 21. The elongated sealing member (19) according to any of the claims 1 to 20, characterized by the elongated sealing member (19) comprising any of the following: Natural rubber (NR), Styrene butadiene rubber (SBR), Butyl rubber (HR), Nitrile rubber (NBR), Epichlorohydrin rubber (ECO, CO), Chloroprene rubber (CR), Urethane rubber (U), Fluoro rubber (FPM), Silicone rubber (Q), Chlorsulphonated polyethylene rubber (CSM), Ethylene propylene rubber (EPDM), Styrenic block copolymers (TPE-s), Polyolefin blends (TPE-o), Elastomeric alloys (TPE-v or TPV), Thermoplastic polyurethanes (TPU), Thermoplastic copolyester, and Thermoplastic polyamides.
- 22. The elongated sealing member (19) according to any of the claims 1 to 21, characterized by the adhesive (12) comprising any of the following: a heat-activated adhesive, a heat- activated tape, an acrylic foam adhesive, and an acrylic foam tape.
- 23. The elongated sealing member (19) according to any of the claims 1 to 22, characterized by the elongated sealing member (19) being symmetrical with respect to a center plane X that is vertical to the plane side (29).
- 24. A vertical pressure filter (1) comprising a filter pack (2) comprising a plurality of separate horizontally arranged and vertically movable filter plates (3), each having a lower surface (4) and an upper surface (5), an endless movable filter fabric belt (6) arranged in zigzag manner between the filter plates (3), closing and opening means (7) for vertically pressing said plurality of separate horizontally arranged and vertically movable filter plates (3) against each other into a closed state of the filter pack (2) to form filter chambers (8) between filter plates (3) and an upward facing surface section (9) of the endless movable filter fabric belt (6) and for vertically moving said plurality of separate horizontally arranged and vertically movable filter plates (3) away from each other into an open state of the filter pack (2) to open said filter chambers (8), and at least one elongated sealing member (19) according to any of the claims 1 to 23 arranged in a circumferential groove (11) in the lower surface (4) of at least one separate horizontally arranged and vertically movable filter plate, wherein said at least one elongated sealing member (19) is configured to press against the upward facing surface section (9) of the endless movable filter fabric belt (6) in the closed state of the filter pack (2), and wherein said at least one elongated sealing member (19) being fastened by means of adhesive (12).
- 25. The vertical pressure filter (1) according to claim 24, characterized by said at least one separate horizontally arranged and vertically movable filter plate (3) comprise a bottom plate (13), a frame (14) below the bottom plate (13), and an elastic and waterproof diaphragm (15) attached between the bottom plate (13) and the frame (14), by the filter chamber (8) being in the closed state limited by the elastic and waterproof diaphragm (15), the endless movable filter fabric belt (6) and the frame (14) so that the filter chamber (8) has a volume, and by the vertical pressure filter (1) comprises inflating means for inflating fluid such as liquid or gas between the elastic and waterproof diaphragm (15) and the bottom plate (13) to reduce the volume of the filter chamber (8) in the closed state.
- 26. The vertical pressure filter (1) according to claim 25, characterized by the filter chamber (8) being horizontally limited by the frame (14).
- 27. The vertical pressure filter (1) according to claim 25 or 26, characterized by the lower surface (4) of at least one separate horizontally arranged and vertically movable filter plate (3) being formed at the frame (14).
- 28. The vertical pressure filter (1) according to any of the claims 25 to 27, characterized by the frame (14) comprising channels for feeding material to be filtered such as slurry and fluids such as water and air into the filter chamber (8) in the closed state.
- 29. The vertical pressure filter (1) according to any of the claims 25 to 28, characterized by the bottom plate (13) comprises a drainage screen (16) for supporting the endless movable filter fabric belt (6) and a drainage channel (18) in fluid connection with the drainage screen (16) for leading filtrate from the drainage screen (16) to the outside of the bottom plate (13).
- 30. The vertical pressure filter (1) according to any of the claims 24 to 29, characterized by retainers (17) for keeping said at least one elongated sealing member (19) in the circumferential groove (11).
- 31. The vertical pressure filter (1) according to any of the claims 24 to 30, characterized by said at least one elongated sealing member (19) being in the form of a single elongated sealing member (19).
- 32. The vertical pressure filter (1) according to any of the claims 24 to 31, characterized by said at least one elongated sealing member (19) comprising adhesive (12), by said at least one elongated sealing member (19) comprising a base portion (20), a ridge portion (21), and an intermediate portion (22) between the base portion (20) and the ridge portion (21), by the base portion (20) comprising a plane side (29), by the base portion (20) having opposite fastening portions (23) extending in traverse directions in relation to a longitudinal direction of said at least one elongated sealing member (19), and by the adhesive (12) being provided between the plane side (29) of said at least one elongated sealing member (19) and the filter plate (3).
- 33. The vertical pressure filter (1) according to any of the claims 24 to 32, characterized by said at least one elongated sealing member (19) being symmetrical with respect to a center plane X that is vertical to the plane side (29).
- 34. The vertical pressure filter (1) according to any of the claims 24 to 33, characterized by the circumferential groove (11) in the lower surface (4) of at least one separate horizontally arranged and vertically movable filter plate (3) having third opposite side planes (32) and a plane surface (33) between the third opposite side planes (32).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20155743A FI20155743A (en) | 2015-10-19 | 2015-10-19 | LONGITUDINAL SEALING VERTICAL FOR VERTICAL PRESSURE FILTER AND VERTICAL PRESSURE FILTER |
| FI20155743 | 2015-10-19 | ||
| PCT/FI2016/050726 WO2017068241A1 (en) | 2015-10-19 | 2016-10-18 | Elongated sealing member for a pressure filter and pressure filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2016342466A2 AU2016342466A2 (en) | 2018-05-10 |
| AU2016342466A1 true AU2016342466A1 (en) | 2018-05-10 |
Family
ID=57256349
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2016342466A Pending AU2016342466A1 (en) | 2015-10-19 | 2016-10-18 | Elongated sealing member for a pressure filter and pressure filter |
| AU2016102378A Active AU2016102378A4 (en) | 2015-10-19 | 2016-10-18 | Elongated sealing member for a pressure filter and pressure filter |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2016102378A Active AU2016102378A4 (en) | 2015-10-19 | 2016-10-18 | Elongated sealing member for a pressure filter and pressure filter |
Country Status (10)
| Country | Link |
|---|---|
| CN (1) | CN208770916U (en) |
| AU (2) | AU2016342466A1 (en) |
| BR (1) | BR112018007839A2 (en) |
| CL (1) | CL2018000997U1 (en) |
| ES (1) | ES1212341Y (en) |
| FI (1) | FI20155743A (en) |
| PL (1) | PL71851Y1 (en) |
| RU (1) | RU185844U1 (en) |
| TR (1) | TR201804998U4 (en) |
| WO (1) | WO2017068241A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021209680A1 (en) * | 2020-04-17 | 2021-10-21 | Metso Outotec Finland Oy | A sealing strip for sealing adjacent filter plate assemblies of a filter press, such as a tower press, a filter frame, a filter frame assembly and a filter apparatus |
| WO2023196665A2 (en) * | 2022-04-08 | 2023-10-12 | Ionic Solutions Ltd. | Electrodialysis and electrodeionization spacers |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB655076A (en) * | 1947-02-24 | 1951-07-11 | Cherry Burrell Corp | Improvements in or relating to gaskets for plate apparatus in particular plate type heat exchangers or filter presses |
| US4274961A (en) * | 1976-11-08 | 1981-06-23 | Gene Hirs | Pressure filter |
| SU960246A1 (en) * | 1979-12-03 | 1982-09-23 | Киевский Технологический Институт Пищевой Промышленности | Filter press for separating beer mash |
| DE3315500A1 (en) * | 1983-04-28 | 1984-10-31 | Grau Feinwerktechnik GmbH & Co, 7926 Böhmenkirch | Membrane filter press |
| DE4415274C2 (en) * | 1994-04-30 | 1998-04-30 | Jv Kunststoffwerk | Filter plate for a plate filter press |
| GB9502486D0 (en) * | 1995-02-09 | 1995-03-29 | Scapa Group Plc | Filtration apparatus |
| US5725767A (en) * | 1996-02-15 | 1998-03-10 | Calvest Associates, Inc. | Torsion resistant filter structure |
| DE102009018826A1 (en) * | 2009-04-24 | 2010-11-11 | Klinkau Gmbh + Co. | Plate component for a filter press system |
| CN104399294B (en) * | 2014-11-20 | 2016-03-23 | 长兴星盛新材料有限公司 | For the filter press plate of chamber-type press filter |
-
2015
- 2015-10-19 FI FI20155743A patent/FI20155743A/en unknown
-
2016
- 2016-10-18 RU RU2018116440U patent/RU185844U1/en active
- 2016-10-18 TR TR2018/04998U patent/TR201804998U4/en unknown
- 2016-10-18 AU AU2016342466A patent/AU2016342466A1/en active Pending
- 2016-10-18 WO PCT/FI2016/050726 patent/WO2017068241A1/en active Application Filing
- 2016-10-18 BR BR112018007839A patent/BR112018007839A2/en not_active Application Discontinuation
- 2016-10-18 ES ES201850001U patent/ES1212341Y/en active Active
- 2016-10-18 PL PL127524U patent/PL71851Y1/en unknown
- 2016-10-18 CN CN201690001284.9U patent/CN208770916U/en active Active
- 2016-10-18 AU AU2016102378A patent/AU2016102378A4/en active Active
-
2018
- 2018-04-18 CL CL2018000997U patent/CL2018000997U1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU2016342466A2 (en) | 2018-05-10 |
| FI20155743A (en) | 2017-04-20 |
| RU185844U1 (en) | 2018-12-19 |
| AU2016102378A4 (en) | 2019-05-16 |
| PL71851Y1 (en) | 2021-04-06 |
| CL2018000997U1 (en) | 2018-05-25 |
| TR201804998U4 (en) | 2022-10-21 |
| ES1212341U (en) | 2018-05-17 |
| WO2017068241A1 (en) | 2017-04-27 |
| PL127524U1 (en) | 2019-07-29 |
| ES1212341Y (en) | 2018-08-07 |
| CN208770916U (en) | 2019-04-23 |
| BR112018007839A2 (en) | 2018-10-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DA3 | Amendments made section 104 |
Free format text: THE NATURE OF THE AMENDMENT IS AS SHOWN IN THE STATEMENT(S) FILED 18 APR 2018 Free format text: THE NATURE OF THE AMENDMENT IS: APPLICATION IS TO PROCEED UNDER THE NUMBER 2016102378 |