WO2024149428A1 - Filtervorrichtung zum abtrennen von partikeln und verfahren zum abtrennen von partikeln - Google Patents
Filtervorrichtung zum abtrennen von partikeln und verfahren zum abtrennen von partikeln Download PDFInfo
- Publication number
- WO2024149428A1 WO2024149428A1 PCT/DE2024/100001 DE2024100001W WO2024149428A1 WO 2024149428 A1 WO2024149428 A1 WO 2024149428A1 DE 2024100001 W DE2024100001 W DE 2024100001W WO 2024149428 A1 WO2024149428 A1 WO 2024149428A1
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- WO
- WIPO (PCT)
- Prior art keywords
- filter
- filter device
- mixing device
- housing
- paddle
- 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.)
- Ceased
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
- B01D46/0006—Filter elements or cartridges installed in a drawer-like manner
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
- B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
- B05B14/43—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by filtering the air charged with excess material
- B05B14/437—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by filtering the air charged with excess material with means for introducing solid material into the air charged with excess material for preventing clogging of the filter
Definitions
- the present invention relates to a filter device for separating particles, in particular particles of a coating material, from a raw gas stream containing particles.
- the present invention further relates to a method for separating particles, in particular particles of a coating material, from a raw gas stream containing particles.
- filter devices for separating particles are used in particular in the field of dry separation of overspray particles, such as in painting systems for vehicle bodies.
- the paint mist is separated from the air in a paint spray booth by filtration.
- a filter aid preferably particulate stone powder, is used as an aid for the filtration.
- the filter aid also called precoat material, is located in a storage container of a filter device, in which it is preferably kept in motion and loosened by a mixing device.
- the precoat material is whirled up by deliberately introduced compressed air and entrained by the raw gas entering the filter device and transported to the actual filters or filter elements.
- the fine precoat material is deposited on the entire filter surface and forms a protective precoat layer.
- the overspray from the raw gas volume flow is separated on the precoat layer, which adheres to the filter surface, and does not come into direct contact with the filter surface, which would otherwise stick together.
- the filter cake that has formed on the filter surface is blasted off the filter by a pressure surge.
- the raw gas enters the filter device through a so-called nozzle, whereby this nozzle preferably comprises two openings and a diaphragm in the central area.
- this nozzle preferably comprises two openings and a diaphragm in the central area.
- the template is generally understood to be the area of the filter device into which the filter aid is whirled and/or moved by the whirling.
- Two flow vortices usually form in the lower area of the module.
- a so-called dead space is created behind the nozzle nozzle aperture, in which the raw gas can flow upwards towards the filters.
- a painting system which comprises at least one spray painting device with at least one application unit for painting workpieces, in particular vehicle bodies, with a fluid paint, comprises a device for separating fluid paint overspray from a raw gas stream containing overspray particles, wherein this device comprises at least one filter element for separating the overspray from the raw gas stream.
- this device comprises at least one filter element for separating the overspray from the raw gas stream.
- the paint particles that do not adhere to the workpieces to be painted and which are picked up and carried along by an air stream passing through the application area of the painting system can be separated again from this air stream and the cleaned air stream can be fed back to the application area in a recirculation circuit or released into the environment of the system.
- a filter device for separating particles, in particular particles of a coating material, from a raw gas stream containing particles which comprises a housing and at least one filter element, has an interior space through which the air can flow efficiently, and can therefore be operated reliably and safely, in particular, when the filter device comprises a diaphragm device which comprises at least one diaphragm element.
- the housing delimits an interior space of the filter device, the at least one filter element being arranged in the interior space of the filter device, and the raw gas stream being able to be fed to the interior space of the filter device through an inlet section of the filter device in an inflow direction.
- the inlet section of the filter device can be covered in sections by means of the at least one diaphragm element.
- WO 2014/075984 A1 further proposes a receptacle for receiving a material, which enables safe operation and reliable operation.
- the receptacle comprises an access opening through which an interior of the receiving container is accessible, an action device arranged in the interior for acting on the material and a securing device arranged in the interior for securing the interior and/or the action device against access.
- the securing device can be brought from a first securing position, in which access to the interior of the receiving container is blocked, into a second securing position, in which access to the action device is blocked.
- the overspray-laden raw gas flows horizontally into the funnel area, which is located in the lower area of the filter device, and passes over the so-called paddle mixer, which throws the precoat material directly into the flow.
- the raw gas can entrain sufficient precoat material and transport it to the filters. A targeted introduction of compressed air to stir up the precoat material is therefore no longer necessary.
- the speed of the paddle mixer can be adjusted.
- the filter devices with paddle mixers are equipped with a higher number of filters (approx. 60 filters or filter elements) than the first mentioned devices (approx. 40 filters). This means that a larger amount of raw gas can be processed per device and it is usually sufficient to arrange these devices on one side below the spray booth, i.e. only one booth is assigned to a spray booth.
- WO 2013/013846 A1 proposes a painting system for painting workpieces which is compact and enables reliable separation of paint overspray from a raw gas flow.
- the painting system comprises a painting booth in which the workpieces can be painted with paint, a conveying device by means of which the workpieces to be painted can be conveyed through the painting booth in a conveying direction, a separation and/or filtering system for cleaning a raw gas flow leaving the painting booth which has absorbed paint overspray in the painting booth, and at least one clean gas line for a clean gas flow which is obtainable by cleaning the raw gas flow using the at least one filtering device.
- the separation and/or filtering system comprises at least one filtering device for separating the paint overspray from the raw gas flow.
- the clean gas box is currently located on top of the device and the filters hang horizontally in the filter device.
- the filter must therefore be installed on the raw gas side, and the worker carrying out the replacement must be standing completely in the dust chamber.
- grids must be arranged inside the device to allow the worker access to all filters.
- the filters are sealed on the raw gas side, which means that a higher dust load can lead to an increased risk of poor installation and the associated leaks.
- the piping for the compressed air cleaning is complex.
- the installation space on the hopper below the inflow is severely limited, despite the basically good stone powder movement, which makes swirling nozzles superfluous.
- the maintenance door is therefore located on the opposite side of the raw gas inlet in the hopper. Due to the position of the maintenance door and the required accessibility of the maintenance door, air flow as with the first-mentioned devices is not possible.
- At least one additional door in the device is necessary to access the filters, preferably in a more solid design.
- the air outlet from the clean gas box on the device has previously been designed in such a way that the air duct crosses the associated spray booth in small channels and thus reaches the recirculation system on the opposite side in the spray booth.
- these cross channels form additional disruptive contours within the spray booth, on which overspray can settle.
- the present invention is based on the object of providing a filter device which has a relatively large filter area in a small installation space and which in particular combines the advantages of the two previously mentioned devices.
- the filter device serves to separate particles, in particular particles of a coating material, from a raw gas stream containing particles.
- the particles For example, there may be overspray particles in the exhaust air of a spray booth for vehicle bodies or vehicle components.
- the filter device comprises the following: a housing which comprises an inlet section; at least one filter module which is arranged within the housing; a downwardly tapering funnel which is arranged below the housing and is fluidically connected to the housing; and a mixing device for swirling a filter aid, in particular a particulate stone powder, into the raw gas flow, which is arranged below the funnel and is fluidically connected to the funnel such that the swirled filter aid can essentially be placed in the funnel, wherein the raw gas flow can be fed through the inlet section of the housing in an inflow direction of the filter device, and wherein the inflow direction points essentially from the inlet section in the direction of the funnel.
- a filter device which comprises at least one filter module with preferably 72 filter elements, which are arranged in particular in three filter rows of 24 filter elements one above the other, whereby a filter area of over 300 m 2 is available for separating particles.
- a filter area of approximately 324 m 2 , 331 m 2 , 342 m 2 or 345 m 2 can be provided.
- the installation position of the filter rows is preferably horizontal and the clean gas device or the clean gas box, which in particular has integrated doors, is preferably arranged like a backpack on the back of the filter device.
- the installation of the filter elements or the filter rows can take place on the clean gas side, whereby the worker is no longer exposed to dust when replacing the filter elements or the filter rows.
- a high entry of the raw gas ie in particular in the upper area of the funnel, ensures that more space is available for a maintenance door below the inlet section.
- the clean gas also exits the clean gas device in an at least approximately vertical direction downwards or upwards and is guided into a collecting channel by means of channels below or above the filter device.
- a larger filter surface is available per device compared to previous, comparable filter devices, which means that more raw gas from the painting equipment can be processed.
- the one-sided installation of a filter device according to the invention for example, below a spray booth, is sufficient, which also means that the parking space opposite the booth is available as open space.
- the now smaller number of filter devices per booth of a painting line or system also reduces maintenance and cleaning effort and fewer wearing parts such as pipes, valves, etc. have to be provided.
- the reduced number of filter devices required also results in lower investment costs and low operating costs, as, for example, no compressed air is required to stir up the stone powder.
- the geometry, i.e. the structure and the basic design, of the filter device according to the invention essentially corresponds to the geometry of a standard filter device as described at the beginning.
- a filter device preferably comprises the following components or parts: a housing with at least one filter module, a funnel, a mixing device on a scale and a clean gas device.
- the components are all preferably arranged in or on a base frame.
- the housing comprises an inlet section, which may have a nozzle or is designed as such.
- the raw gas enters the filter device, ie in a high position and not in the area of the funnel, which is located below the housing.
- the mixing device is arranged below the funnel and/or in the lower area of the funnel and is preferably decoupled from a scale via one or more compensator devices, which in particular comprise an elastomer or are made from an elastomer.
- the one or more compensator devices decouple the scale from the frame of the filter device, i.e. it is avoided or at least reduced that operational vibrations of the filter device are introduced into the scale.
- the scale is a two-part scale, so that the skids, which can have a paddle mixing device, are divided or distributed on the load cells of the scale.
- the area of the mixing device in particular the area inside the funnel above the mixing device, forms the area where the filter aid, such as rock powder, is deposited in order to be carried along by the raw gas flow towards the filter elements.
- the filter device comprises a clean gas device which is arranged on the outside of the housing opposite the inlet section and is fluidically connected to the filter module.
- the inlet section comprises or is designed as an aperture device by means of which the volume and/or the speed of the raw gas flow fed into the filter device can be adjusted.
- the aperture device can be a nozzle lens, in particular a nozzle lens with two openings and a central aperture.
- adjustable means in particular that the volume and/or velocity of the raw gas flow can be influenced by exchanging or changing the orifice device or the nozzle nozzle.
- each filter row comprises at least 20 filter elements, preferably 24 filter elements.
- the filter area is increased, while the external dimensions of the filter device are only increased insignificantly.
- the filter elements together form a filter area of at least 300 m 2 , preferably between 324 m 2 and 345 m 2 .
- the clean gas device discharges a clean gas stream downwards or upwards from the filter device.
- the clean gas flow discharged from the filter device can then be introduced into a collecting channel, to which the clean gas flow from further filter devices of other facilities or booths can also be fed, wherein the collecting channel is arranged below or above the filter device in the area of the painting device or spray booth.
- At least one dust sensor can optionally be arranged in the collecting duct to monitor the clean gas flow or flows, in particular to detect stone dust leaks. In other words, it may be advantageous if at least one dust sensor is provided downstream of the clean gas device to monitor the clean gas flow.
- a bag filter can be arranged in a transition area between the clean gas device or clean gas box and the collecting duct.
- the mixing device is mounted on a scale to monitor the amount of filter aid.
- the mixing device has at least two skids or the like, each of which stands or rests on a load cell.
- Monitoring the amount of filter aid not only serves to refill the filter aid in good time, but also to control and/or regulate the amount of filter aid placed in the hopper so that the raw gas flow can carry enough filter aid. Monitoring also serves to assess the process quality and provides information about when the filter aid is saturated and needs to be replaced.
- the mixing device is a paddle mixing device which has at least five, preferably seven double paddles which are arranged along a shaft.
- the shaft is hexagonal, especially in the arrangement section of the double paddles, which makes the double paddles easier to attach than a shaft with a round cross-section and also means they do not tend to slip.
- Previous paddle mixing devices basically have shafts on which propeller-shaped individual paddles are arranged offset along the shaft.
- a paddle mixing device on the other hand, has double paddles with radially opposite single paddles.
- a paddle mixing device can accordingly comprise two outer, two or four inner and one central double paddles, wherein the outer double paddles correspond to each other, as do the inner double paddles.
- the arrangement of the double paddles is preferably mirror-symmetrical to a mirror axis which is aligned perpendicular to the longitudinal axis of the shaft and intersects it approximately in the middle.
- the single paddles of the double paddles are point-symmetrical to the longitudinal axis of the shaft.
- each individual paddle of a double paddle has a blade surface which has one or more partial surfaces.
- the one or more partial surfaces of the blade surfaces of the double paddles are designed to convey the filter aid, relative to the longitudinal direction of the shaft, into the center of the paddle mixing device.
- the individual paddles of the double paddles other than a central double paddle have a deflection surface pointing towards the centre of the paddle mixing device and a feed surface, wherein the deflection surface is bent or folded over relative to the feed surface.
- the outer edge of the feed surface i.e. the edge pointing radially outwards, is preferably parallel to the wall of the trough of the paddle mixing device in which the rotating shaft is arranged.
- the filter aid is swirled or thrown into the funnel at an angle of approximately 90° to the incoming raw gas and/or to the longitudinal axis of the shaft.
- This throwing effect of the double paddles promotes the entrainment of the filter aid and thus also the precoating of the surfaces of the filter elements.
- the deflection surfaces ensure that the filter aid is conveyed to the center of the paddle mixing device for exchange.
- filter aid In order to be able to completely empty the trough of the paddle mixing device during an emptying and/or cleaning process via a central suction nozzle, it is particularly advantageous to convey the filter aid from the outer areas of the mixing device to the middle of the mixing device. Without a special design of the paddle surfaces, for example, filter aid would collect in the corners or outer area of the mixing device and completely emptying the trough would be difficult or even impossible.
- the paddle mixing device comprises a motor, in particular an electric motor, which has an electrical power of at least 0.5 kW, preferably 3 kW.
- a rotational speed of the paddle mixing device can be controlled and/or regulated by means of a frequency converter.
- the control and/or regulation of the amount of filter aid stirred up per hour can be carried out within a certain range via the speed of the paddle mixing device. If the stirred up amount monitored by the scales drops by 1 kg in a given period of time, for example within a period of 2 minutes, the speed can be increased step by step by at least 1 Hz, preferably with the help of software, until the scales determine a sufficient amount.
- the paddle mixing device swirls up the filter aid at a speed of 20 Hz to 60 Hz, preferably 30 Hz to 50 Hz.
- the clean gas device comprises at least one filter unit.
- the filter unit of the clean gas device is preferably a bag filter, which acts as a so-called police filter in the event of a leak in the at least one filter module arranged within the housing; i.e. to safeguard is intended to collect stone powder that escapes in the event of a leak, so that it does not escape from the filter device and is guided or directed, for example, into the collecting channel.
- one or more dust sensors can be provided in the collecting duct in front of a recirculation fan and/or an exhaust air fan.
- the dust sensors monitor the clean gas flow, preferably from several filter devices simultaneously, for rock dust leaks.
- the filter rows can be replaced via the side of the housing on which the clean gas device is arranged.
- Either an entire filter row with the associated filter elements can be removed or the filter elements can also be removed individually.
- the entire filter module is removable and replaceable.
- the object is further achieved according to the invention by a method for separating particles, in particular particles of a coating material, from a raw gas stream containing particles.
- the procedure includes the following steps:
- the fluidized filter aid is entrained by the raw gas stream
- a clean gas stream flows out of the filter device.
- the filter module preferably comprises at least two rows of filters arranged one above the other.
- each filter row has several filter elements, for example at least 20 filter elements, preferably 24 filter elements.
- the method further comprises the following step:
- the method may further comprise the following step:
- the method preferably has one or more of the features and/or advantages described in connection with the filter device.
- the filter device has one or more of the features and/or advantages described in connection with the method.
- Fig. 1 is a schematic, perspective view of an embodiment of a filter device according to the invention.
- Fig. 2 is a further schematic perspective view of the embodiment of Fig. 1;
- Fig. 3 is a schematic side view of the embodiment of Fig. 1;
- Fig. 4 is a schematic sectional view of the embodiment of Fig. 3;
- Fig. 5 is a schematic sectional view of the gas flow in the embodiment of Figs. 1 to 4;
- Fig. 6 is a schematic plan view of a prior art paddle mixing device
- Fig. 7 is a schematic exploded view of the paddle mixing device of Fig. 6;
- Fig. 8 is a schematic plan view of an embodiment of a paddle mixing device according to the invention.
- Fig. 9 is a schematic exploded view of the embodiment of Fig. 8.
- Fig. 10 is a schematic perspective view of the shaft with
- Double paddles of the embodiment of Fig. 8 and 9; and Fig. 11 is a schematic plan view of a double paddle from Fig. 10.
- An embodiment of a filter device 100 shown in Figs. 1 to 3 and designated as a whole by 100 serves to separate particles, in particular overspray particles of a coating material such as a paint, from a raw gas stream containing these particles.
- the filter device 100 comprises a housing 102, a funnel 104, a mixing device 106 designed, for example, as a paddle mixing device, and a clean gas device 108.
- the hopper 104 is arranged below the housing 102 and the paddle mixing device 106 is arranged below the hopper 104.
- the clean gas device 108 is arranged on the side of the housing 102.
- the housing 102 surrounds three filter rows 112 of a filter module 113 arranged one above the other, which are fluidically connected to the clean gas device 108, as can be seen in Fig. 4.
- the housing 102 comprises an inlet section 114, which can be covered with a cover 116 when the filter device 100 is in a rest state.
- a raw gas stream containing particles is introduced or fed into the filter device 100 from a treatment area or a treatment room, such as a paint booth for vehicle bodies, via the inlet section 114.
- the inlet section 114 comprises a diaphragm device 118 or is designed as such, by means of which the volume and/or the speed of the raw gas flow fed into the filter device 100 can be adjusted.
- the aperture device 118 preferably comprises a nozzle frame or is designed as such.
- the funnel 104 tapers downwards relative to the direction of gravity and has a maintenance door 120 below the inlet section 114 of the housing 102, which closes a maintenance opening 122 of the funnel 104.
- the interior of the funnel 104 is accessible via the maintenance opening 122.
- the maintenance door 120 is preferably secured at four positions in or on the maintenance opening 122 of the hopper 104 in order to close it securely, i.e. in particular dust-tight.
- a drawer-like storage device 124 is arranged, which protrudes from the funnel 104 and whose base plane encloses an angle in a range of 60° to 120°, preferably approximately 90°, with the associated side surface of the funnel 104.
- the maintenance door 120 can be placed in the drawer-like storage device 124 for maintenance purposes, so that the filter aid adhering to the inside of the maintenance door 120 contaminates the environment of the filter device 100 as little as possible. Likewise, filter aid falling out when the maintenance door 120 is opened can be caught in the drawer-like storage device 124.
- a frequency converter 126 is arranged on the frame 110, with the aid of which the speed of the paddle mixing device 106 can be controlled and/or regulated.
- the frequency converter 126 can alternatively be arranged in a separate control cabinet or directly on the motor of the paddle mixing device 106.
- the paddle mixing device 106 is mounted on a scale 128 with two load cells 130.
- the scale 128 enables monitoring of the amount of filter aid which is received in the paddle mixing device 106 or which is fed into the funnel 104, ie in particular is swirled into it.
- the load cells 130 are preferably each supported on one or more compensator devices, in particular vibration compensators, which for example comprise an elastomer or are made of an elastomer, in order to decouple the vibrations introduced into the frame 110 from the load cells 130.
- compensator devices in particular vibration compensators, which for example comprise an elastomer or are made of an elastomer, in order to decouple the vibrations introduced into the frame 110 from the load cells 130.
- the paddle mixing device 106 further comprises a preferably centrally arranged suction nozzle 132, via which the filter aid received in the paddle mixing device 106 can be sucked out or discharged.
- the clean gas device 108 has an integrated door 136, which can be designed in particular as a double door, via which the filter rows 112 on the clean gas side can be removed from the filter device 100 or replaced.
- a direction of the gas flow GS through the filter device 100 is shown, in the course of which the introduced raw gas is filtered into a clean gas in order to be discharged as this from the filter device 100 and in particular to be fed back into the circulating air of a treatment plant or its areas.
- the raw gas introduced or supplied into the filter device 100 initially essentially follows an inflow direction 138, which preferably points from the inlet section 114 in the direction of the funnel 104, wherein an inner region of the funnel 104 forms a supply region 140 into which the paddle mixing device 106 supplies or swirls the filter aid.
- the clean gas discharged downwards from the clean gas device 108 is led, for example, into a collecting duct 142 after the filter device 100, in order to be fed back from this collecting duct to the circulating air of individual treatment areas of the treatment plant, in particular all areas.
- the introduced raw gas absorbs filter aid in the supply area 140 of the funnel 104, which binds the particles contained in the raw gas.
- the gas containing the filter aid is then passed through the filter elements, whereby the filter aid together with the bound particles settles on the surfaces of the filter rows 112 or the filter elements of the filter module 113, forming so-called filter cakes.
- Each filter row 112 preferably comprises 24 filter elements (not shown), whereby the filter device 100 provides, for example with three filter rows 112 arranged one above the other, a total filter area of 324 m 2 or 342 m 2 , depending on the filter elements, which can be obtained from different manufacturers and can therefore differ.
- the gas flow GS i.e. here in particular the separated or filtered gas flow, passes through the filter rows 112 into the clean gas device 108, which can have at least one pocket filter to protect against contamination in the event of a leak (not shown).
- the clean gas device 108 ensures through the pocket filter that a gas flow GS that is almost completely cleaned of particles leaves the filter device 100 as clean gas, even if filter aid leaks out of the filter module 113 due to a malfunction.
- the gas flow GS containing particles is shown by way of example in a sectional view of the housing 102, the funnel 104 and a gas supply section 144 from the gas supply section 144 of the treatment area or the treatment room to the filter elements of the filter device 100, wherein the points in Fig. 5 represent particles in the gas flow GS and an increase in the point density is intended to correspond to an increased particle concentration.
- the paddle mixing device 106 according to the invention is described in more detail below and distinguished from a paddle mixing device of the prior art.
- the 210 engine typically has an output of 0.5 kW.
- each paddle 208 is rotated relative to the longitudinal axis of the shaft 206 by between 30° and 60°, preferably by approximately 45°, so that the filter aid can be conveyed into the center of the paddle mixing device 200.
- Each paddle 208 is circumferentially offset by 75° to 165°, preferably by 120°, with respect to its adjacent paddles 208, which are spaced apart in the direction of the longitudinal axis of the shaft 206.
- the arrangement of the paddles 208 along the longitudinal axis of the shaft 206 is preferably mirror-symmetrical with respect to a mirror axis 212 which is aligned perpendicular to the longitudinal axis of the shaft 206 and which intersects the shaft 206 in the middle.
- a paddle device 106 has, as shown in Figs. 8 to 11, a shaft 214 with a hexagonal profile, on which double paddles 216 are arranged spaced apart from one another along the longitudinal axis.
- the motor 210 of the paddle device 106 also preferably has an output of 3 kW.
- the paddle device 106 comprises seven double paddles 216, which are arranged mirror-symmetrically with respect to the mirror axis 212.
- Each double paddle 216 is arranged offset in the circumferential direction by 50° to 100°, preferably by 60° to 90°, with respect to its adjacent paddles 216, which are arranged at a distance in the direction of the longitudinal axis of the shaft 214.
- a double paddle 216 comprises two single paddles which are radially opposite one another with respect to the longitudinal axis of the shaft 214 and are point-symmetrical with respect to the longitudinal axis of the shaft 214.
- the embodiment of the paddle mixing device 106 in Figs. 8 to 11 has two identical outer double paddles 218, four identical inner double paddles 220 and a central double paddle 222.
- Each double paddle 216 comprises two identical blade surfaces 224, each of which consists of one or more partial surfaces, i.e. in particular each individual paddle of a double paddle 216 comprises a one-piece or multi-piece blade surface 224.
- the outer and inner double paddles 218, 220 have blade surfaces 224 with two partial surfaces, of which the deflection surface 226 pointing towards the center of the paddle mixing device 106 or the shaft 206 is bent and/or folded relative to the remaining supply surface 228, wherein the surfaces 226, 228 enclose an angle W of 85° to 175°, preferably 135°, as can be seen in Fig. 11.
- the feed surfaces 228 serve in particular to feed the filter aid into the funnel 104, whereas the deflection surfaces 226 serve in particular to convey the filter aid into the center of the paddle mixing device 106.
- the outer edges of the feed surfaces 228 are preferably parallel to the wall of the trough 202 and thus enable the filter aid to be swirled into the feed area 140 in a homogeneous manner essentially over the longitudinal axis of the shaft 214, so that that the gas flow GS can entrain more filter aid towards the filter elements and/or the formation of agglomerates of filter aid and particles is reduced.
- Each blade section 224 of each double paddle 216 is preferably connected to the shaft 214 via two web surfaces 230 aligned parallel to one another, wherein the web surfaces 230 have one or more openings 232, preferably round holes, to reduce weight and thus to reduce the mass moment of inertia, as can be seen in Figs. 9 and 10.
- a paddle mixing device 106 is therefore able to swirl up filter aid and swirl it into the supply area 140 of the funnel 104, furthermore to break up agglomerates of filter aid and particles and to convey filter aid more easily towards the center of the paddle mixing device 106, whereby an improved suction behavior can be achieved during the exchange of the filter aid, such as stone powder.
- the speed of the paddle mixing device 106 can be controlled and/or regulated via the frequency converter 126.
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- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP24702215.5A EP4648879A1 (de) | 2023-01-11 | 2024-01-03 | Filtervorrichtung zum abtrennen von partikeln und verfahren zum abtrennen von partikeln |
| CN202480005264.8A CN120379739A (zh) | 2023-01-11 | 2024-01-03 | 用于分离颗粒的过滤装置和用于分离颗粒的方法 |
| DE112024000517.9T DE112024000517A5 (de) | 2023-01-11 | 2024-01-03 | Filtervorrichtung zum abtrennen von partikeln und verfahren zum abtrennen von partikeln |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023100484.0A DE102023100484A1 (de) | 2023-01-11 | 2023-01-11 | Filtervorrichtung zum Abtrennen von Partikeln und Verfahren zum Abtrennen von Partikeln |
| DE102023100484.0 | 2023-01-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024149428A1 true WO2024149428A1 (de) | 2024-07-18 |
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ID=89767679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2024/100001 Ceased WO2024149428A1 (de) | 2023-01-11 | 2024-01-03 | Filtervorrichtung zum abtrennen von partikeln und verfahren zum abtrennen von partikeln |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4648879A1 (de) |
| CN (1) | CN120379739A (de) |
| DE (2) | DE102023100484A1 (de) |
| WO (1) | WO2024149428A1 (de) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008010189A1 (de) * | 2008-02-20 | 2009-08-27 | Dürr Systems GmbH | Vorrichtung und Verfahren zum Abtrennen von Nasslack-Overspray |
| WO2010069407A1 (de) | 2008-12-19 | 2010-06-24 | Dürr Systems GmbH | Lackieranlage und verfahren zum betreiben einer lackieranlage |
| WO2013013846A1 (de) | 2011-07-27 | 2013-01-31 | Dürr Systems GmbH | Lackieranlage und verfahren zum betrieb einer lackieranlage |
| DE102011079951A1 (de) * | 2011-07-27 | 2013-01-31 | Dürr Systems GmbH | Lackieranlage und Verfahren zum Betrieb einer Lackieranlage |
| WO2014075984A1 (de) | 2012-11-13 | 2014-05-22 | Dürr Systems GmbH | Zugänglicher aufnahmebehälter mit sicherungsvorrichtung |
| WO2014139833A1 (de) | 2013-03-11 | 2014-09-18 | Dürr Systems GmbH | Filtervorrichtung und lackieranlage |
| CN210585464U (zh) * | 2019-08-27 | 2020-05-22 | 佛山市南海区汉哲涂装技术有限公司 | 一种改善上粉效率的静电涂料喷枪 |
| CN211463590U (zh) * | 2019-12-31 | 2020-09-11 | 山东先河汽车转向器有限公司 | 一种汽车转向器转向轴用喷漆装置 |
| CN215235305U (zh) * | 2021-03-25 | 2021-12-21 | 深圳市奥凯盛智能有限公司 | 一种箱包加工用表面喷涂装置 |
-
2023
- 2023-01-11 DE DE102023100484.0A patent/DE102023100484A1/de not_active Withdrawn
-
2024
- 2024-01-03 EP EP24702215.5A patent/EP4648879A1/de active Pending
- 2024-01-03 DE DE112024000517.9T patent/DE112024000517A5/de active Pending
- 2024-01-03 WO PCT/DE2024/100001 patent/WO2024149428A1/de not_active Ceased
- 2024-01-03 CN CN202480005264.8A patent/CN120379739A/zh active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008010189A1 (de) * | 2008-02-20 | 2009-08-27 | Dürr Systems GmbH | Vorrichtung und Verfahren zum Abtrennen von Nasslack-Overspray |
| WO2010069407A1 (de) | 2008-12-19 | 2010-06-24 | Dürr Systems GmbH | Lackieranlage und verfahren zum betreiben einer lackieranlage |
| WO2013013846A1 (de) | 2011-07-27 | 2013-01-31 | Dürr Systems GmbH | Lackieranlage und verfahren zum betrieb einer lackieranlage |
| WO2013013847A1 (de) | 2011-07-27 | 2013-01-31 | Dürr Systems GmbH | Verfahren zum betreiben einer filtervorrichtung und filtervorrichtung |
| DE102011079951A1 (de) * | 2011-07-27 | 2013-01-31 | Dürr Systems GmbH | Lackieranlage und Verfahren zum Betrieb einer Lackieranlage |
| WO2014075984A1 (de) | 2012-11-13 | 2014-05-22 | Dürr Systems GmbH | Zugänglicher aufnahmebehälter mit sicherungsvorrichtung |
| WO2014139833A1 (de) | 2013-03-11 | 2014-09-18 | Dürr Systems GmbH | Filtervorrichtung und lackieranlage |
| CN210585464U (zh) * | 2019-08-27 | 2020-05-22 | 佛山市南海区汉哲涂装技术有限公司 | 一种改善上粉效率的静电涂料喷枪 |
| CN211463590U (zh) * | 2019-12-31 | 2020-09-11 | 山东先河汽车转向器有限公司 | 一种汽车转向器转向轴用喷漆装置 |
| CN215235305U (zh) * | 2021-03-25 | 2021-12-21 | 深圳市奥凯盛智能有限公司 | 一种箱包加工用表面喷涂装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN120379739A (zh) | 2025-07-25 |
| DE102023100484A1 (de) | 2024-07-11 |
| EP4648879A1 (de) | 2025-11-19 |
| DE112024000517A5 (de) | 2025-11-27 |
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