CN105126409A - Filtering device - Google Patents

Abstract

The invention relates to a filtering device used for filtering and separating solid from liquid. The filtering device comprises at least one liquid-permeable filtering band capable of being continuously or intermittently driven and a band cleaner used for loading a to-be-filtered liquid/solid mixture to an inlet, in a loading region, of the filtering band and removing the solid accumulated at the conveyed-out portion, located outside the loading region and located in a discharging region, of the filtering band. According to the filtering device, the band cleaner is provided with at least one brush, and a brush cleaner with a scraper is connected with the brush and arranged on a path of brush bristles of the rotating brush. The accumulated solid is efficiently removed from the filtering band through the rotating brush; meanwhile, the scraper of the brush cleaner guarantees that the fall solid can not be settled on the brush and the brush can not stuck. Continuous self cleaning of the brush is particularly helpful for removing sticky impurities of the to-be-filtered liquid, and therefore it can be guaranteed that the solid is lastingly, efficiently and continuously separated.

Description

Filter plant

The application is the divisional application that name is called " filter plant ", application number is the application for a patent for invention of 201080069760.8 of application on October 22nd, 2010.

The present invention relates to a kind of for solid being filtered from liquid and the filter plant separated, it comprise at least one liquid permeable, can continuously or the strainer of intermittent driving, for liquid/solid mixtures to be filtered is loaded into entrance on the strainer in packing area and for by the solid be deposited on strainer from outside the filler transferred out, belt cleaner that the band portion section that is arranged in discharge area removes.

Known Granulation Equipments from document DE10154134A1, its process liquid is directed across particulate filter with the form of the liquid refrigerant in closed circuit, thus the impurity entered in granulation or granulation in process liquid is filtered and is separated from process liquid.To this, be provided with using the strainer of conveyer belt mode continued circling running as particulate filter, the process liquid of pollution to be filtered is filled on described strainer, thus make top set (upperrun) and the inferior division (lowerrun) of this liquid stream filter bag, and by powder collection on strainer.The impurity be collected on strainer is sent out, and adopts the scraper in discharge region to remove from bringing continuously.

Owing to not needing to stop industrial equipment to clear up filter, can continuously or the application of the strainer of intermittent driving for what filter the liquid of pollution, especially in industrial equipment, application is useful, and in described industrial equipment, process liquid conducts in closed circuit.By the movement of strainer, the solid conduction be deposited in packing area on strainer is gone out packing area, thus can remove from strainer in discharge region, described discharge region is positioned at outside described packing area.Meanwhile, fresh or clean strainer portion section is moved in packing area again by the movement of strainer, thus fresh, available strainer portion section is filtered always herein.

But hitherto known this filter plant all urgently improves in many aspects.To this, a problem relates to the clean of strainer and maintenance.According in the equipment of document DE10154134A1, strainer respective branch around be positioned at filter plant inside directive wheel conduction before, the solid that the top set and inferior division of strainer collect not easily removes, because the corresponding strainer portion section in filter plant inside change into from inferior division top set or---according to direction of rotation---before changing inferior division into from top set, strainer portion section first through being arranged in discharge region scraper and import in discharge region.The solid be deposited on described strainer is not only made to guide around the directive wheel being positioned at filter plant inside thus, which results in and solidify, and the wearing and tearing that result between band and directive wheel, and make the strainer portion section being coated with solid in top set in advance without clearing up again for filtering.

In addition, problem can cause the cleaning of putting strainer in district, and it needs the parking independently cleaning measure and filter plant thus.On the one hand, its reason is set in deposit on strainer can not wipe off completely, and repeating around the strainer run accumulates more and more, thus blocked by strainer.On the other hand, the solid removed from strainer can be accumulated in scraper, thus causes accumulation herein, and it needs filter plant to safeguard parking.

Before, in such maintenance is stopped, the process with such filter plant of the strainer of running is more complicated than the filter plant with static marginal gap formula filter (stationaryedgesplitfilters).Such as, if strainer must be replaced completely, removing of so obvious filter plant is more complicated, if this is because the end of discontinuous strainer should not be connected with other strainers subsequently, namely through after described discontinuous strainer, least for the strainer installing new continuous operation, also the directive wheel in filter plant must be removed.

Set out thus, basic goal of the present invention is the filter plant of the improvement providing a kind of initial described type, and described filter plant avoids drawback of the prior art, and researches and develops further the latter in a beneficial manner.Preferably, should reach the longer operation cycle, and not damage filter efficiency, wherein, this operation cycle has less and shorter maintenance down time.In addition, preferably, easier strainer replaceability should be realized, so that filter plant can be realized to different process liquid or the adaptation to wherein comprised solid.

Object of the present invention is achieved by filter plant according to claim 1.The preferred embodiments of the invention are themes of dependent claims.

In order to avoid being accumulated the infringement of downtime and the filter efficiency caused by the solid formed in belt cleaner region, suggestion uses brush to remove the solid be deposited on strainer, described brush is designed to self-cleaning, thus not only ensure that solid removing from persistent high efficiency strainer, and the build up of material avoided on cleaning brush and the downtime for being removed.According to the present invention, belt cleaner has the brush of at least one rotatable driving, and the brush cleaner with scraper is connected with the brush of rotatable driving, and described brush cleaner is arranged on the path of the bristle of the brush of rotation.The solid of deposition removes from strainer by brush effectively that rotate, and the scraper of brush cleaner ensure that the solid come off can not be deposited on described brush simultaneously, and is sticked.The continuous self-cleaning of brush for liquid to be filtered sticky contaminant helpful especially, thus can ensure solid persistent high efficiency, continuous print is separated.

Scraper for the brush self-cleaning of rotatable driving is typically designed to different modes.The embodiment useful according to the present invention, described scraper can be shaped as bar-shaped scraping blade, and described scraping blade clamps with preferably immersing the area of bristles of brush completely.In this respect, described scraping blade can be parallel to brush turning cylinder to this extends, also can be slight in necessary situation, with inclined at acute angles, extend apart from the spacing of brush turning cylinder, described spacing is less than the radius of described brush coverage rate, thus make the bristle of the brush of rotation constantly impact the scraping blade on its path, or periodically engage.

In this regard, described bar-shaped scraping blade can be in operation arranged stationary, namely relative on the fixed position of brush.If be provided with columniform rod as scraper, then can provide perfect rigidity, immovable layout.

During of the present invention another improves, the position of scraper can also change relative to brush, such as, near the axle that scraper can be delivered to brush, maybe it can be removed since then, thus when realizing more and time and the shaving effect of less (einmalmehrundeinmalweniger) intensity, or adjust scraper in order to the wearing and tearing according to brush.Alternatively, or in addition, the supporting of scraper can also have mobility, so that scraper can be arranged in different circumference fragments, thus can implement operation of swiping on diverse location, such as thus avoid the solid backwash wiped off on strainer.In another improvement that the present invention is useful, the scraper of described brush can be arranged on the side of the brush of strainer dorsad.If the contact point of brush on strainer is defined as angle 0 °, scraper can such as be arranged in the angular interval of 90 ° to 270 °, and this can say, in second and third quadrant that described brush operates.In the embodiment that the present invention is useful, such as, scraper can be arranged in the scope of 150 ° to 210 °, thus reliably avoids solid backwash on strainer when utilizing brush scrape solid.If the Angle Position of scraper by the removable support adjustment of corresponding scraper, can strike off and can optimally adjust for different solids or bristle types.

In another improvement of the present invention, bar-shaped scraping blade can also have the cross section being different from circle, such as there is to extrude the radially-protruding plate of mode of portion's section, there is triangle or polygonal profile or there is the grid of connection bump interlaced with each other, especially when scraping blade is rotatable driving, preferably rotatable driving on the rightabout of brush direction of rotation, thus the splicing results between scraper and bristle is increased, and the solid on bristle achieving improvement removes.

Selectively, for the portion that the extrudes section of scraper rod, it can also have the portion's section with the component changed in a longitudinal direction, especially portion's section of threaded portion section or tipper shape, thus reaches the conveying effect on scraper longitudinal direction.The solid increased in the center amount of being shown as of brush such as with this equalization on the longitudinal extent of brush, and can be transported to side.To this, described bar-shaped scraping blade can have such as double helical spurgear or herringbone profile.Described threaded portion section or tipper portion section can have superposition thereon aforesaid thus and extrude portion's section.

Alternatively, or in addition, for the scraper of such scraping blade form, the second brush for brush self-cleaning can also be used, described second brush can be configured to the brush of rotatable driving equally valuably, and the moving axis that can rotate rotate, described turning cylinder be basically parallel to or slight inclination ground, tend to acute angle the first brush turning cylinder extend.The second brush so preferably drives along the direction contrary with the first brush, thus is removed from the first brush by the solid sticked on the first brush.In another improvement project of the present invention, also another brush cleaner can be connected with the second brush, such as, by the form of scraping blade described above.

In order to the clean of strainer can be made to be adapted to different technology conditions ideally, outwash has the drive unit with variable bit rate at the brush of strainer, thus brush speed can be changed, and can be adjusted to corresponding desired quantity.

In another improvement project of the present invention, this is provided with to the automaton to brush speed or adjusting device, described device be the process conditions of corresponding appearance achieve desirable strainer clean.To this, control device can be connected to the checkout gear detecting different operational factors.So, control device then adjusts speed automatically according to operational factor.Such as, described checkout gear can comprise load-sensing system, by means of described load-sensing device to filtration load, the amount of solid of namely placing on strainer and/or remaining filter permeability measure, thus such as along with filtration load increases, be adjusted to higher brush speed, comparatively speaking, along with filtration load reduces, be adjusted to lower speed.Alternatively, or in addition, described checkout gear also can comprise density of solid induction system, to measure the share of solid in liquid to be filtered and/or to measure the ratio of amount of liquid relative to amount of solid.If the share of such as solid in liquid to be filtered improves, brush speed can be improved, such as, otherwise, along with amount of solid declines, can changing down.Alternatively, or in addition, described checkout gear can comprise particle size induction system, in order to measure the particle size adhering to solid particle.Such as, if particle size increases, can speed be improved, such as, otherwise, have under little particle, work can carried out in lower brush speed.Alternatively, or in addition, such as solid material also can be used by as parameter, adjusts brush speed with reference to solid material.Alternatively, or in addition, the feedback regulation of brush speed can be carried out, so that the strainer portion section observation clean to brush, and detect with regard to its cleannes, such as, by optical sensor or to the air of band and/or the mensuration of permeability for liquids.Brush rotating speed then can so be regulated, thus obtains the cleannes of strainer large as far as possible in the downstream of brush.Other operational factor may be used for the speed adjustment of cleaning brush.

Alternatively, or in addition, in order to adjust described brush speed according to different operational factor, the speed of brush can also be made periodically to change or overturn, such as in each n-level running of strainer, cleaning process carries out with the brush speed improved or carries out with the rightabout that brush rotates.

Alternatively, or in addition, in order to change brush speed, in another improvement project of the present invention, the contact of brush on strainer can also be changed, particularly by changing the spacing of brush wheelbase strainer.The spacing of contact and/or brush wheelbase strainer can be adjusted according to different operational factors by control device in the corresponding way automatically, such as, when described cleaning effect variation or higher filtration load, brush is positioned on strainer more strongly.Other power of brush also can by described mode periodic variation, and such as, below, in each n-level of strainer is run, clean cycle is carried out with higher contact.

Alternatively, or in addition, in another useful improvement project of the present invention, in order to change the contact of described brush speed and/or brush, the rate travel to strainer can also be changed.To this, the drive unit with variable drive speed is combined with strainer.Valuably, manual regulating device can be combined with drive unit, thus can manually change strainer speed.Alternatively, or in addition, in order to automatically change strainer speed according at least one operational factor, automaton can also be provided with, wherein, valuably, aforesaid operational factor can be used, namely especially filtration load, density of solid or amount of liquid relative to characteristic size, its grid order footpath aperture or its permeability for liquids in other words of the ratio of amount of solid, particle size, solid material or strainer.Especially such as along with the solid share in filtration load growth or liquid/solid mixtures to be filtered increases, tape speed can be improved, and along with filtration load reduction or the reduction of solid share, can tape speed be reduced.

Described belt cleaner can be positioned in the different portions section of strainer and/or discharge region usually.In another useful improvement project of the present invention, brush is formed with the inferior division of strainer and is connected, and preferably forms connection from bottom surface, thus the side of brush to strainer is processed, wherein, solid to be filtered-/liquid mixture is loaded into this side of strainer in the packing area of filter.

In order to extra clean measure can be carried out when needed or change strainer in maintenance cycle, define according to other aspects of the invention, drivable strainer is connected with belt cleaner, thus form component group, described component set constructor is the entrance independent of filter, and supports movably relative to entrance.The component group comprising strainer, its drive unit and belt cleaner especially can be configured to drawer-like, thus enable described component group in other words for filter process the strainer portion section be positioned in packing area push in filter shell by the form of drawer, or from being wherein drawn out, and do not need in advance described component group to be disassembled into its assembly.Valuably, the filter shell of filter has this and pushes hole on vertical enclosure wall, thus described component group is pushed in filter shell or from being wherein drawn out from the side.

In order to simplify operation when described strainer component group is extracted out and loads, define in another improvement project that the present invention is useful, described component group forms saddle, and described saddle is supported on floor by underframe, and/or is drawn movably by the rail plate on filter shell.Thus, assembler or user need not bear the gross weight of component group, can by described component group pull-out.Can realize being easy to load and extract out by the saddle columnar structure of the component group with underframe.

In another improvement project of the present invention, in order to realize, strainer is accurate in packing area locates and/or precise match between entrance and strainer, and need not be difficult to this positioning work that passes at described filter shell internal implementation, the component group of described drawer-like is provided with the connection collar around strainer, the described connection collar can be connected with filter shell, and form adjacent and/or positioner, described in abut against with filter shell joint in preset strainer position desired in packing area.When the component group of drawer-like utilizes strainer to be first pushed in filter shell, until the described connection collar contacts with filter shell, the part that drawer-like component group extends into filter shell inside is accurately positioned in packing area, and the remainder comprising the component group of belt cleaner and discharge area is arranged in filter shell outside.

According to a further aspect in the invention, in order to avoid before different portions section is clean, solid/liquid mixture to be filtered is repeatedly through strainer or different portion's sections, and filter so constructs, thus makes solid/liquid mixture only can be directed across identical strainer individually.But valuably, described strainer guides around directive wheel in conveyer belt mode, thus make strainer utilize top set and inferior division to extend in the packing area of filter, wherein, strainer especially can be configured to the conveyer belt of running continuously.But, in order to avoid solid/liquid mixture to be filtered is through top set and inferior division, in another improvement project of the present invention, be provided with delivery face between the top set of the strainer of filter in the portion's section of conveyer belt being positioned the filtration in packing area and inferior division, thus make the liquid filtered through top set cross inferior division delivery.The liquid entrapment of top set will be passed before inferior division in described delivery face, and was crossed other parts that inferior division guides to this liquid-circulating.

Described delivery in the face of this generally can have different structures, the form on such as inclined-plane banking.In another improvement project of the present invention, described delivery face can the have---roughly speaking---profile of saddle roof shape, its spine is configured to the traffic direction being basically parallel to strainer, and towards top set, thus the liquid that the delivery face of making retains is crossed inferior division and guided towards two sides.

In another improvement project of the present invention, described delivery face has the fluid directed element that the traffic direction perpendicular to strainer extends herein, it is preferably the shape of the directed guide rail of fluid, thus the liquid retained is calmed down, and stop the longitudinal component of the fluid begun from strainer, and desired direction that the liquid retained directly is led.

In another improvement project of the present invention, described delivery face is constructed to channel-shaped to avoid uncontrolled overflow or to retain the spilling of liquid.Described delivery face especially can be formed and turn over portion in side edge region, increase portion or staying of other structures holds profile, thus the control that can realize retaining liquid guides.Described band shape traction guide rail especially can be provided with banded traction guide rail at (3a) of (3) on described delivery face, described band shape traction guide rail engages around strainer top set or above it on its lateral margin, and limits packing area from the side.Such band shape traction guide rail is not only satisfied to be guided strainer and under filler loading condition, prevents the overbending of strainer or the object of kink, and also avoid the not controlled of the top set of strainer and splash, this can cause unfiltered overflow.Exceed the band shape traction guide rail given prominence at strainer edge from the side the solid/liquid mixture of filling is remained in the region of top set, thus make described mixture substantially fully flow through the top set of strainer, and filter thus.The delivery face of retaining between top set and inferior division/in other words has following dual-use function thus, and on the one hand, the liquid be trapped under top set is crossed inferior division and guided, and on the other hand, guarantees the abundant filtration through top set.

In order to the product removed by strainer can be processed better, and enable belt cleaner be easier to onset simultaneously, according to a further aspect in the invention, strainer is configured with drying device between the packing area and discharge area of filter, for carrying out drying to the solid be accumulated on strainer.In this technique, the solid of accumulation must bone dry, but can dry tack free or the dehumidifying carried out to a certain degree, wherein, can realize different aridity according to service condition.For this reason, drying device generally can manufacture by different way, and comprises the drier of multiple adjacent one another are or layout engaging one another where necessary.In another improvement project of the present invention, drying device can have at least one energy sink, such as, and the energy sink of infrared heat sink format, thus emittance is applied to the filtration product sticked on strainer.Alternatively, or in addition, drying device can have the flow generator that at least one is such as fan or aspirator form.Dry air can be applied to the solid sticked on strainer by means of such flow generator, thus can be peeled off from strainer by described belt cleaner more easily, and be easier to further process.

In order to further drying solid, other drier can also be used.Such as, spiral-flow type separator(-ter), vavuum pump or other desiccant bodies can be provided with.

In another improvement project of the present invention, different strainers can be designed to stagewise, series connection or multiple layout after another strainer, wherein, preferably, and the different strainer of various structure.In another improvement project of the present invention, after different filter elements can being located at another strainer in stacked mode, thus filter out solid particle meticulous all the time.But alternatively, also the mutual assembly of filter can be formed by different layouts with the strainer of identical type structure.

Strainer or multiple strainer can be generally different structures, and wherein, the natural or synthetic fibers of fabric or mesh shape can be used as machinable filter medium.Alternatively, or in addition, that process can also be used and/or be coated with filter medium.Such as, fibrous material can be made up of condensation polymer and copolymer thereof, or is made up of polyolefin and copolymer thereof.Valuably, strainer is processed into continuous band, and freedom from repairs and reusable thus.At this, continuous band can be manufactured by the end of the strainer first connecting discontinuous form, wherein, each section of two of strainer ends can be made by adhesion, welding, pressing, link according to the structure of strainer, connect, spin, rivet or other are connected with other strainer regularly or releasably.The material of strainer can be formed as the synthetic textiles in single or multiple lift structure, or it can manufacture in the mode of link or welding, and antistatic ground constructs if desired.Alternatively, or in addition, can as strainer without coating or the stainless steel fabric of meticulous braiding of coated form and/or the glass fabric of coating.The process liquid used in filtering accuracy and respective technique or the solid occurred in respective technique and this technique matches, and wherein, the good compromise for different application can have the filtering accuracy of 0.05 to 0.25mm, and is especially 0.15mm.

In another improvement project that the present invention is useful, in order to realize solid/liquid mixture to be filtered even filler on strainer, entrance comprises the packed bed being provided with punch level, described packed bed comprises flow export or feeding port, after only flowing through at least one punch level, solid/liquid mixture to be filtered could arrive flow export or feeding port.Valuably, solid/liquid mixture therefore to be filtered almost acylic motion and/or be loaded on strainer without turbulent flow, thus described mixture is spread as a laminar flow on strainer.

Instead of described punch level, that can also be provided with other or the additional flow control mechanism calming down filler stream, such as, with wing plate, wave trough, projection or other hydraulic mechanism that filling is flowed to homogenising, rate reduction and/or calmed down.In another improvement project of the present invention, entrance can comprise and enters groove, and its base plate tilts in the vertical acclivitous mode at strainer, and pilot flow outlet, described flow export can have different profiles, preferably avette, oval or have the rectangle of file fillet.Can be implemented in uniform liquid on strainer by the file circle contour of the outlet of packing groove to load.In the region of the base plate of the inclination of described flow export upstream packing groove, arrange above-mentioned hydraulic mechanism for the calming down of filler fluid, homogenising or slow down.

Below in conjunction with preferred embodiment and affiliated accompanying drawing, the present invention will be described in detail.Shown in the drawings:

Fig. 1 is the perspective view of the filter according to Advantageous embodiments of the present invention, and wherein, the packing area of described filter shows from surface thereof, thus the packing groove arranged in entrance is shown with the strainer be under it;

Fig. 2 is the perspective view from other visual angles of Fig. 1 filter, the figure shows the strainer part be in outside filter shell and the collection container leaching solid being arranged in below discharge area;

Fig. 3 is the side view of the filter according to above accompanying drawing, and described side view has been depicted as the Local map in filter shell region, is being arranged in the strainer of filter shell inside in order to illustrate and is attaching troops to a unit in its entrance;

Fig. 4 is the perspective view of described strainer component group, and it comprises the strainer of continuously running, its guide rail-, guiding-with driving mechanism and the belt cleaner associated with strainer with for described component group is bearing in ground underframe;

Fig. 5 is the plane bottom-up according to Fig. 4 strainer, and described plane shows the belt cleaner associated with the inferior division of strainer, and it comprises the brush roll of the cleaning blade scraping blade of having attached troops to a unit for scraper clean roughly and self-cleaning,

Fig. 6 is the perspective view of the described strainer of bottom-up inclination, it illustrates scraper and the brush roll of described belt cleaner;

Fig. 7 is cleaning brush and attaches troops to a unit in the partial enlarged drawing of its cleaning blade, it illustrates the layout of cleaning blade in the operation range of described bristle;

Fig. 8 is the perspective view of described cleaning brush, it illustrates the arrow shaped obliquity of area of bristles in this embodiment;

Fig. 9 is described for solid/liquid mixture being loaded into the projective amplification figure of the packing groove on strainer; With

Figure 10 is the schematic diagram of the suitable embodiment of strainer.

Filter 1 shown in accompanying drawing comprises filter shell 2, has the liquid of solid to import for filtering destination through filter shell by polluting.Liquid to be filtered may be used for different objects herein, such as, as the process liquid of the industrial equipment guided in closed circuit.Herein, can consider the cooling fluid of such as oil or the water guided in closed circuit, this cooling fluid is used for the cooling to lathe or other production equipments, defines the special impurity of process liquid in cooling, and the recovery of this impurity is necessary or worthwhile.That also can consider the cooling water that the external substances such as such as blade pollute is clean.

Filter 1 is at Granulation Equipments such as annular comminutor (ringpelletizers) or the extruding granulator of plastic granulating; application particularly in water in comminutor is especially useful; in the device, the plastics of granulation are made to enter in process liquid closed circuit.In this technical process, adopt common separator by the particle removal of granulation, the less impurity caused by plastic grain then can be filtered by shown filter plant and be separated.In the case, the filter plant illustrated described in is connected into the process liquid closed circuit being arranged in particle separator downstream.

Solid/liquid mixture to be filtered is entered the inside of filter shell 2 by entrance 4, and being added to by the packing groove 23 in packing area 5 can continuously or the strainer 3 of intermittent driving, described strainer is arranged in the straight line that lies low, namely flatly or to arrange with the straight line of the acutangulate only slight inclination of level.In the embodiment illustrated, see Fig. 3, strainer 3 level is pointed to.

Shown strainer 3 is arranged in upper area, herein such as at top 1/3rd place of filter shell 2 inner chamber, thus the process liquid of discharging through strainer 3 can be collected in the lower area of filter shell 2, described filter shell 2 serves as liquid container or intermediate storage mean simultaneously.

Fig. 9 show in more detail the packing groove 23 of entrance 4, and valuably, packing groove 23 comprises the base plate 24 of inclination, base plate 24 tilts to the depression in the stub area of packing groove 23, wherein, be provided with flow export 25 at recess, flow export 25 has long, avette or slightly oval profile in the embodiment illustrated, but the different profiles specific to product can also be had, such as rectangle or the flow export of polygonal long hole shape.See Fig. 9, valuably, packing groove 23 narrows gradually to flow export 25, and the width namely perpendicular to the inclined-plane of base plate 24 diminishes towards flow export 25, and wherein, narrowing can be continuous print or classification.Described base plate 24 is limited by the trough rim 26 of side, edge herein, and described trough rim is increased relative to base plate 24, and avoids the overflow of edge.

Liquid to be cleaned is imported in shown packing groove 23 from the side calming down, after the overflow determined, and calms down further to it as necessary by staggered punch level (damstage).This punch level can be located on base plate 24, but wherein, and even other fluids calm down, the flow control mechanism of rate reduction and/or homogenising also can be formed in especially on base plate 24.

Conveyer belt under the flow export 25 being arranged in packing groove 23, be configured to running continuously with the strainer 3 keeping flat form configuration, and operate around at least two spaced directive wheels 16,17, described directive wheel is preferably bearing on closed bearing support 27, wherein, bearing support 27 can be provided with the support rails of side, described support rails can be configured as according to service condition the rail plate scribbling plastics, such as, with the form of PE-UHM.Alternatively, or in addition, filter shell 2 can be provided with the roller (guide) apron with the corresponding backing roll be made up of metal or plastics.

As shown in Figure 4, strainer 3 is parts of drawer-like component group 28, and described component group can be pushed in filter shell 2 or from wherein pulling out.For this reason, filter shell 2 has entrance hole 29 on vertical wall, and described entrance hole is configured as and is a bit larger tham conveyer belt on cross section.More precisely, the part of described component group 28, the part namely comprising the part of top set 3a and the part of inferior division 3b and the strainer 3 that is placed in directive wheel 16 therebetween pushes filter shell 2 in the mode of drawer, thus makes the respective segments of strainer 3 coordinate the below of the packing groove 23 accurately lain against in packing area 5.Meanwhile, other parts of strainer 3 are run in the outside of filter shell 2, strainer 3 at this place through discharge region 7.In order to strainer 3 being joined suitable being positioned in filter shell 2, and being closed hermetically by filter shell 2, being provided with the connection collar 15 surrounding strainer 3, the traffic direction that the described connection collar is essentially perpendicular to strainer branch extends.The described connection collar 15 is connected with filter shell 2 in a sealing manner, such as, utilize the mechanical compression by clamping element extremely to surround on filter shell 2 edge of entrance hole 29.In order to seal for filter shell 2, filter shell 2 be connected the seal being provided preferably with better resistant to elevated temperatures and/or food-grade between the collar 15, the form of the sealing ring be such as made up of the plastics of deformable material as suitable.

The part of stretching out the strainer 3 of filter shell 2 can be surrounded by crustose case 30, and described case is configured as box-shaped in the embodiment illustrated, and surrounds strainer 3 part of stretching out all sidedly, and be connected the collar 15 and be connected.Case 30 has outlet 31 in downside, and the solid cleaned peeled off from strainer 3 enters through described outlet the collection container 32 be arranged in below it.

In order to the component group 28 comprising strainer 3 is pulled out and carried, be provided with underframe 13 with supporting member group 28, wherein, described underframe 13 has in the embodiment illustrated and is disposed in roller on single shaft or wheel, but, the underframe of multiaxial type can also be provided with.Alternatively, or in addition, relative to described underframe 13, can also by component group 28 by rail plate 14 filter shell 2 guides movably, wherein, described rail plate 14 can be arranged on such as the bearing support 27 of strainer 3, such as with the form of guide plate or gathering sill, described guide plate or gathering sill form reciprocation with the guiding mechanism of complementary structure on filter shell 2.Pull out completely in order to avoid drawer-like component group 28 is less desirable, can be provided with releasable retaining element in the inside end of bearing support 27, such as, with the form of steady pin, when component group 28 pulls out completely, described steady pin contacts from inner side with filter shell 2.

Valuably, aforesaid case 30 has arrange, the releasable cover cap 33 in upside, in order to realize the top-down passage leading to strainer 3.Valuably, during operation, cover cap 33 is connected with the main body of case 30 is airtight.

The drive unit 34 driven for the running of strainer 3 is arranged on strainer 3 part be arranged in outside filter shell 2.Valuably, described drive unit 34 comprises the motor of the variable speed with motor being such as form, and described motor drives a directive wheel 17 where necessary, and strainer 3 is led around described directive wheel by the transmission device can with fixing or variable gear ratio.Selectively, drive unit 34 can also be driven strainer 3 by independently driving wheel, and described driving wheel is crushed on strainer 3 or in suitable location and its formation reciprocation.But, preferably by the driving of directive wheel 17.The directive wheel 17 being configured to roller valuably can have various structure according to the structure of strainer 3, such as, the form of spherical roller or tubular roller, wherein, valuably, described directive wheel 17 and/or other directive wheels 16 can have at least one gathering sill and/or at least one guide protrusions, and such as form is the margin plate that the next-door neighbour's strainer in the end regions of directive wheel is given prominence to from the side, thus guarantee that the straight line extroversion of strainer 3 is run.For this reason, described strainer 3 can within it be provided with the thrust inserting described gathering sill where necessary.Alternatively, or in addition, at least one in directive wheel 16,17 comprises guiding ratchet, and described guiding ratchet complementally inserts in the gap be located on strainer 3.Alternatively, or in addition, on the contrary, described strainer 3 is provided with wheel tooth row, grooved row or similar to linking protruding shape, and the link that described shape is inserted in directive wheel perimeter surface in the mode of respective complementary is protruding.Link reliably avoid by the such ratchet between strainer 3 and directive wheel and trackslip.

Valuably, described drive unit 34 is regulated by the control device 35 only schematically shown, thus accommodation zone speed and processing parameter matching, wherein, transfer rate especially can change relative to the ratio of particulate according to liquid, especially, below, transfer rate improves along with the rate of rise of grain amount.Alternatively, or in addition, as stated in the beginning, for the ratio of aqueous phase for particulate, it is also conceivable to other operating parameters.

In the lower zone of the return leg of strainer 3, after driven directive wheel 17, be provided with belt cleaner 6, described belt cleaner cleans continuously to strainer 3.First, the inferior division 3b place of taking turns the strainer 3 that 17 run out at self-steering is provided with coarse scraper 36, and such as, coarse scraper is the form of scraping device or scraping blade, and described coarse scraper implements rough the cleaning first of strainer 3.Valuably, in view of its angle position and/or its placed-depth or in-position, described coarse scraper 27 supports movably, thus can set different contact angles and/or different delivery angles and belt distance according to strainer and handicraft product.Herein, the angle adjustable of described scraper supporting arrangement can be formed by single shaft or twin shaft, wherein, valuably, coarse scraper 36 1 aspect can be parallel to strainer 3 plane the longitudinal axis around inclination, and can rotation around the axle perpendicular to inferior division 3b.

Herein, coarse scraper 36 can have different shapes, wherein, have knife-edge, wedge shape, plate shaped, most advanced and sophisticated shape and still shape coarse scraper in the improvement project that the present invention is useful, there is important function.Coarse scraper 36, especially can be shaped as the coarse scraper of tabular or strip scraping blade, can be made from a variety of materials, such as by such as PE-UHM, and the plastics of PTFE, PA, PPS or POM are made, and wherein can also use metal.In improvement project of the present invention, coating can be used for coarse scraper 36 herein, such as, for reducing the form of the Friction-Reducing Coating of strainer wearing and tearing,, and/or the form of the coating of the minimizing stiction of such as Teflon, thus promote that particle is from peeling off coarse scraper 36.

In the embodiment illustrated, the brush 8 by means of rotary actuation achieves particulate cleaning, and similarly, described brush is arranged in the return leg place of strainer 3, and compartment of terrain is arranged in the downstream of coarse scraper 36.Herein, described brush 8 especially can be shaped as brush roll, described brush roll is rotatably supported in about brush turning cylinder 37 place, valuably, the plane of described brush turning cylinder and inferior division 3b is arranged in parallel, and preferably, the direction of transfer perpendicular to strainer 3 is arranged, if desired, being the layout tilted a little of acute angle with it.

The driving movement of brush 8 can such as conduct out from the driving of strainer 3 by means of with the mechanical couplings of chain, band or geared system form, wherein, brush 8 can drive with the direction identical or contrary with strainer 3, wherein, when the driving run in the same way is moved, form relative speed by relatively high driving speed.Such as, but in the improvement project that the present invention is useful, brush 8 is driven by the drive unit 38 of rate-compatible for the transfer rate of strainer 3, and, described drive unit can comprise the drive motors of the motor form of variable speed.Alternatively, or in addition, described drive unit 38 also can comprise the transmission device of transmission ratio-variable, by means of described transmission device, then and can by mobile for driving again from the driving of strainer or conduct out from independent drive motors.Valuably, brush 8 runs with the direction contrary with strainer 3.

In improvement project of the present invention, the driving speed of brush 8 is passed through the only exemplary control device 35 marked and is controlled or regulate, thus realizes clean rate high as far as possible.As previously mentioned, herein, the control of brush rotating speed can control according to different variablees, such as, according to solid-phase for the ratio of amount of liquid, filtration load, solids versions, solid and/or fluid temperature in packing area, particle size and/or other operational factors.For this reason, control device 35 can be connected with suitable testing agency, and control device 35 changes brush rotating speed according to its signal.

Preferably, the action intensity of brush 8 on strainer 3 is changeable, especially can according to the selection of the pruning shape of brush and bristle material.Alternatively, or in addition, it is also conceivable to aforesaid operational factor, such as, below, when the cleannes of the band portion section controlled in brush 8 downstream are inadequate, improve contact.Valuably, described brush 8 supports movably for this reason, especially towards strainer 3 and leave on the direction of strainer 3, thus can change contact.Described attaching troops to a unit can be configured to manual in ambulant erecting device, but preferably, it can also be provided with external energy is the adjusting device of power, thus makes described control device 35 can control the contact of brush 8 according to one or more aforementioned operational factor.

Better clean in order to realize, the rotating speed of brush 8 and/or contact can periodic variations, such as, brush 8 alternately back and forth runs on the direction identical and contrary with strainer 3, and/or runs with higher rotating speed and/or higher contact in each n-level running of strainer 3.Such brush rotating speed and the cyclically-varying of brush contacts pressure can realize the clean achievement improved while reducing strainer wearing and tearing.

Brush 8 can make the monolithic exceeding strainer 3 overall width.But valuably, additionally provide multi-piece construction or by the structure of brush 8 section of division, realize brush thus and change faster.

Similarly, the bristle part of brush 8 also can have multiple structure, such as, with the form of all pruning or loose bunch formula is pruned.In the improvement project that the present invention is useful, structurized bristle can be provided with prune, the working face of the brush 8 be made up of bristle end in described bristle is pruned has profile variations that determine, that heave, such as, with the form of the area of bristles portion section row of gap, higher and lower projection or other analogous shapes.Described bristle prunes the coil (coilofoneormorerows) especially can with helical form portion section and/or a line or multirow, wherein valuably, can be provided with wedge thread as shown in Figure 8 or portion's section, thus the particle realized perpendicular to throughput direction peels off homogenizing.

Bristle for bristle part can be made of a variety of materials, and wherein, plastics or natural fiber are useful, but can also provide metal bristle, wherein, are provided with coating alternatively.

In order to clear up brush 8, be provided with brush cleaner 9, in the embodiment illustrated, described brush cleaner comprises brush scraper 10, and described brush scraper is configured to the form of scraping blade valuably.Herein, described scraping blade can be columniform pole, can also have if desired by extrudate pattern shape or be provided with the portion's section changed in the vertical, be such as provided with portion's section of coil or spiral, especially described scraper can when its longitudinal axis rotary actuation.

As shown in Figure 7, the substantially parallel layout of turning cylinder 12 of described brush scraper 10 and brush, wherein, the described brush turning cylinder 10 arranged in the embodiment illustrated is immersed in the area of bristles of brush 8 completely.In order to the clean of brush 8 and the process conditions of change can be made to match, brush scraper 10 supports valuably movably.On the one hand, the position of described brush scraper 10 can be arranged valuably, wherein valuably, can change the spacing of the turning cylinder 12 relative to brush, and/or can change brush 8 position circumferentially.In the embodiment illustrated, brush scraper 10 is disposed on the position of 180 °, is namely accurately positioned on the side of the brush 8 stood facing each other with strainer 3 phase.But described brush scraper 10 can also be set according to position and changes in the scope of 90 ° to 270 ° along brush circumferencial direction.

When brush scraper 10 is different from the cross section of the circle of aforementioned manner, brush scraper 10 also can rotatably support, and is rotatably driven by drive unit.Valuably, corresponding drive unit can also to be configured to variable speed herein, wherein, valuably, when considering at least one aforementioned operational factor, and/or extraly according to brush 8 rotating speed, the control device 35 carried can carry out automatic adjustment or the adjustment of rotating speed.Such as, during larger particle share when needing stronger cleaning action, such as in the unit water yield, brush scraper 10 deeper can send into the area of bristles of brush 8.Alternatively, or in addition, such as, when larger particle maybe will be removed from brush 8 by described particle size increase, the rotating speed of scraper can be improved.In addition, other changes of brush scraper 10 position and/or rotating speed are also possible.

With reference to Fig. 6, in order to avoid the particle peeled off from brush 8 splashes on strainer 3, near brush 8, be provided with the shock plate 39 of such as baffle forms, brush 8 and the strainer portion section adjacent with brush 8, the strainer portion section that is especially positioned at brush 8 downstream separate by described shock plate.

In the packing area 5 of strainer 3, delivery face 18 is provided with thereon between branch 3a and inferior division 3b, described delivery face can be configured to the form of guide plate, and described guide plate extends between top set and inferior division, and avoid penetrate through top set fresh water (FW) also percolation cross inferior division.In the improvement project that the present invention is useful, the guide plate be positioned at below packing area 5 can be in the axial direction, i.e. V-shape profile that is centroclinal and/or that have saddle types of roofs on the direction of transfer of strainer 3, to be guided to both sides by uniform liquid.Herein, the direct fluid element design that delivery face 18 extends perpendicular to strainer 3 direction of transfer is the shape of guide rail or plate (railsorwebs), in order to be guided from the side in a prescribed manner by the liquid be trapped.Ensure that the return leg of strainer 3 is not contaminated by described delivery face 18, and therefore directive wheel 16 and 17 is not stain yet.

In improvement project of the present invention, can be provided with band guiding device on delivery face 18, such as guide guide plate for form to be with, described band guiding device surrounds or covers the lateral edge of strainer 3.Valuably, described band guides guide plate to be configured to the such as L-shape of twin columns, thus the margin location making described strainer thereon, or can lay thereon, and limits from the side packing area, to avoid overflow or the effusion of liquid to be filtered hyperfiltration belt edge.The kink that described band guides guide plate to avoid strainer edge in liquid filling area is simultaneously sunk in other words.

As shown in Figure 10, the strainer 3 of running continuously has multiple transfer path and orientation.In the present embodiment, consistent with the embodiment shown in above accompanying drawing with the embodiment of the strainer 3 of running a) marked in Fig. 10.To it alternatively, but strainer 3 can also form the transfer path that self filler district 5 upwards tilts a little or the orientation had b), or according to c) forming the downward inclination transfer path a little in self filler district 5 or there is such orientation.

In addition, described strainer 3 can also through the transfer path twisted together each other, and described transfer path can be realized by plural directive wheel.Such as, the diagram d as at Figure 10) as shown in, the part being positioned at the strainer 3 of filter shell 2 outside can be passed with the acclivity of little inclined at acute angles, or as the diagram e at Figure 10) as shown in, alternatively, pass slightly to the transfer path had a down dip.

According to diagram f), such as, the transfer path being located at the strainer 3 of filter shell 2 outside can also extend simply, thus can provide extra treating stations for filtering technique product.Especially, drying device 20 can be provided with between packing area 5 and discharge area 7, the humidity of the solid sticked on strainer 3 can be made by means of described drying device to reduce.Such as, such drying device 20 can comprise the energy sink 21 of infrared heat sink format, and also has the flow generator 22 of such as fan or aspirator form, thus applies dry air to described solid.Alternatively, or in addition, such as spiral-flow type separator(-ter), vavuum pump can also be used or add other driers of heat radiator.

Claims (19)

1. the brush cleaner for the brush of clean rotary actuation, described brush cleaner (9) is arranged in the rotate path of the area of bristles of brush (8), wherein said brush cleaner (9) is configured as the bar-shaped scraping blade immersing area of bristles completely, described scraping blade is placed adjustably, further wherein, when the centre of the brush part contacted with band is defined as 0 °, described scraping blade changes in the scope of at least 150 ° to 270 ° relative to the position of brush (8) and band (3).

2. brush cleaner according to claim 1, wherein, described scraping blade has and is different from circular cross section, and be configured as can be shaft-driven around the rotation of the scraping blade substantially parallel with the turning cylinder of brush (8).

3. brush cleaner according to claim 1, wherein, described scraping blade has cylindrical cross section, and be configured as can be shaft-driven around the rotation of the scraping blade substantially parallel with the turning cylinder of brush (8).

4. brush cleaner according to any one of claim 1 to 3, wherein, described brush (8) drives with the speed of rotation relative to strainer rate-compatible, and is provided with the control appliance for automatically adjusting brush speed according to operational factor.

5. brush cleaner according to claim 4, wherein, described control appliance is arranged for automatically adjusting brush speed according to filtration load, solid material and/or particle size.

6. brush cleaner according to any one of claim 1 to 3, wherein, set the contact of described brush (8) relative to strainer (3), and be provided with the control appliance of the contact for automatically setting brush (8) according to operational factor.

7. brush cleaner according to claim 6, wherein, described brush (8) is set by the turning cylinder of the described brush adjustable apart from the spacing of strainer relative to the contact of strainer (3).

8. brush cleaner according to claim 6, wherein, described control appliance is arranged for the contact automatically setting brush (8) according to filtration load, amount of liquid relative to the ratio of amount of solid, solid material and/or particle size.

9. brush cleaner according to any one of claim 1 to 3, wherein, described brush (8) engages with the bottom surface of the inferior division of strainer (3).

10. the brush cleaner any one of claims 1 to 3, wherein, that described strainer (3) is configured to operate around directive wheel (16,17) and there is the conveyer belt of top set (3a) and inferior division (3b), wherein, the portion's section being positioned at the conveyer belt between top set (3a) and inferior division (3b) in packing area (5) is provided with delivery face (18), thus makes the liquid delivery on inferior division (3b) through the filtration of top set (3a).

11. brush cleaners according to claim 10, wherein, described delivery face (18) are provided with banded traction element.

12. brush cleaners according to claim 11, wherein, described banded traction element is the form of banded traction guide rail, described band shape traction guide rail is around the top set (3a) of strainer (3) or engage on its lateral margin above it, and limits described packing area (5) from the side.

13. brush cleaners according to any one of claim 1 to 3, wherein, be deposited on the drying equipment (20) of the solid on described strainer (3) for drying to be connected with the strainer (3) between packing area (5) with discharge area (7).

14. brush cleaners according to claim 13, wherein, described drying equipment (20) has at least one for providing the energy sink (21) of emittance to the solid of deposition, and/or has at least one for providing the flow generator (22) of dry gas stream to the solid of deposition.

15. brush cleaners according to claim 14, wherein, described energy sink (21) is infrared radiator.

16. brush cleaners according to claim 14, wherein, the form that described flow generator (22) is aspirator.

17. brush cleaners according to claim 14, wherein, the form that described flow generator (22) is fan.

18. brush cleaners according to any one of claim 1 to 3, wherein, are provided with the control appliance for automatically adjusting strainer speed according to operational factor.

19. brush cleaners according to claim 18, wherein, described control appliance is arranged for and automatically adjusts strainer speed according to amount of liquid in liquid/solid mixtures to be filtered relative to the ratio of amount of solid, filtration load, solid material and/or particle size.