CN103052448A - A centrifugal separator - Google Patents

A centrifugal separator Download PDF

Info

Publication number
CN103052448A
CN103052448A CN2011800414410A CN201180041441A CN103052448A CN 103052448 A CN103052448 A CN 103052448A CN 2011800414410 A CN2011800414410 A CN 2011800414410A CN 201180041441 A CN201180041441 A CN 201180041441A CN 103052448 A CN103052448 A CN 103052448A
Authority
CN
China
Prior art keywords
rotor
resistance
auger conveyor
wears
whizzer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011800414410A
Other languages
Chinese (zh)
Inventor
J.郑
C.瓦泽
R.里德施塔拉勒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfa Laval AB
Original Assignee
Alfa Laval AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alfa Laval AB filed Critical Alfa Laval AB
Publication of CN103052448A publication Critical patent/CN103052448A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B1/2008—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl with an abrasion-resistant conveyor or drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/08—Rotary bowls
    • B04B7/12—Inserts, e.g. armouring plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B2001/2066—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl with additional disc stacks

Landscapes

  • Centrifugal Separators (AREA)
  • Screw Conveyors (AREA)

Abstract

The present invention relates to a centrifugal separator (1) comprising a rotor (2) which is rotatable around an axis of rotation (R), the rotor (2) comprising a separation chamber (10) with an inlet (7, 9, 11) for a liquid mixture containing solid particles, at least one liquid outlet (18, 19, 20) for a separated liquid from the liquid mixture, and a solids outlet (22, 26, 27) for the separated solid particles, wherein a screw conveyor (3) is arranged to rotate inside the rotor (2) around the axis of rotation (R), at a different speed than the rotor (2), the screw conveyor (3) having at least one conveyor flight (3c) for transporting the separated solid particles in the separation chamber (10) towards and out of the solids outlet (22), wherein the conveyor flight (3c) is provided with wear resistant elements (23) arranged along its edge and the wear resistant elements (23); are spaced apart with an interspace (23a) between mutually adjacent wear resistant elements (23).

Description

Whizzer
Technical field
The present invention relates to whizzer, it comprises: rotor, and this rotor can be around the rotation rotation, and rotor comprises the split cavity that has be used to the entrance of the liquid mixture that comprises solid particle; Be used at least one liquid outlet from the separating liquid of liquid mixture; With the solid outlet for separating of solid particle, auger conveyor is arranged to rotate with the speed that is different from rotor around rotation in rotor, auger conveyor has at least one conveyer flight, be used for transporting away from solid outlet towards solid outlet transportation separate solid particles and with it at rotor, the conveyer flight is provided with the element that resistance to wears along its edge placement.
The general considerations relevant with such whizzer is that (a plurality of) conveyer flight can promptly wear away under the situation of separating solids for very grinding.The solid block that this separating solids will be under certain conditions forms hard and grinds very much at the inwall of rotor, this is mainly due to the intrinsic characteristic of the separating solids of the high centrifugal force combination that produces with High Rotation Speed by rotor.Therefore, the element that resistance to wears is arranged along the edge (that is, in the periphery) of conveyer flight, avoids these abrasive solid to protect it.
Background technology
Existence is about the many known prior art document of the element that resistance to wears at the edge that attaches to the conveyer flight.Prior art document US 4519496 A and WO 94/13403 A1 description have the known helical conveyer of the element that resistance to wears (or so-called tile (tile)) that attaches to the conveyer flight; wherein; adjacent tile is avoided wearing and tearing with side by side the mode edge placement along the conveyer flight to protect it.Fixedly the known method of this tile of pottery or tungsten carbide board relates to they riveted joints, solder brazing or epoxy is incorporated into backing plate, and they then are welded in the conveyer flight.These tiles are made by relatively costly abrasion-resistant material, and the edge that they all attach to the conveyer flight be can be very complicated and consuming time, this so will increase the total cost of production of auger conveyor.In addition, utilize relatively highdensity abrasion-resistant material (for example, about 13-16g/cm 3Tungsten carbide) and the edge that the tile of this material is arranged in the conveyer flight will be increased the gross weight of auger conveyor and moment of inertia especially, the required energy of auger conveyor rotation is increased.Also find, although these known tiles provide good abrasion protection, still can be very difficult to the inwall discharging hard solid piece from rotor.
Summary of the invention
Main purpose of the present invention provides whizzer and the auger conveyor that reduces the problems referred to above.
This purpose is realized by whizzer according to claim 1 and auger conveyor according to claim 16 respectively.Therefore, according to the present invention, the whizzer of restriction is characterised in that at first, and the element that resistance to wears is opened with the clearance gap of resistance to wearing between the element of mutual vicinity.
Therefore, according to the present invention, the element that resistance to wears is not with side by side mode (that is, the being adjacent to each other) edge placement along the conveyer flight.On the contrary, they are with from each other range distribution, thereby the mid portion (that is, described gap) that makes the conveyer flight is without any the element that resistance to wears.Therefore, the element that resistance to wears still less arranges along the edge (that is, in the periphery) of conveyer flight, thereby reduces weight and moment of inertia especially, and the TPT of auger conveyor and cost.The distance of resistance to wearing between the element can be depending on environmental change.Yet the interelement that will resistance to wear separates and too far can give the conveyer flight inadequate abrasion protection.In this case, abrasion protection can improve by the distance that reduces simply to resistance to wear between the element.The resistance to wear interval of element can be determined about different aspect, and the operating condition of this different aspect such as auger conveyor or the cost of auger conveyor are to durability.
As if the present invention can cause substantially more not enough abrasion protection, and wherein, the conveyer flight has at the unprotected mid portion that resistance to wears between the element.Yet, be surprised to find this layout and in fact have special advantage.Element is spaced apart although resistance to wear, and they still are that the mid portion (that is, described gap) of conveyer flight provides protection.When the interelement that will resistance to wear separates, realize the cutting effect to the hard solid piece.Because auger conveyor is to be different from the speed rotation of rotor, so the element that resistance to wears will serve as a kind of cutting insert, it provides the cutting force on the hard solid piece.This cutting effect will make the hard grinding block loose; Make it be easier to discharging and to conveyer flight infringement still less both.Substantially, the element that resistance to wears can be made by any material harder than conveyer flight.Yet in the high-speed separation of the liquid mixture on the inwall of the hard solid piece being stayed rotor, the element that resistance to wears should be made by also harder than hard solid piece material.This element that resistance to wears can be made by any suitable abrasion-resistant material, and this abrasion-resistant material is such as oxide ceramics or non-oxide ceramics, metal, diamond or any composite or their combination.
According to embodiments of the invention, along the extension in the gap at the edge of conveyer flight than the large several times of extension along each element that resistance to wears at the edge of conveyer flight.Therefore, the element that resistance to wears that serves as a kind of cutting insert can be taked the form of the abrasion-resistant material of relatively little reinforcement insert or fritter, and the reinforcement insert that this is relatively little or the abrasion-resistant material of fritter are to attach to the conveyer flight from long toward each other distance.For example, the extension in gap can be along the 2-10 of the extension of each element that resistance to wears at the edge of screw doubly.Therefore, this further reduces the production cost of auger conveyor, and this is because of very close to each other, a large amount of quite large-sized tiles that has needn't be provided.In addition, the element that resistance to wears of the form by the sheet spare that is fritter or smaller szie is provided, particularly when utilizing relatively frangible abrasion-resistant material (for example, pottery), reduce their break during operation parts in blocks and damage thus the risk of rotor and/or auger conveyor.
According to another embodiment of the invention, auger conveyor is made by polymer.Polymeric material (such as, plastics or nylon) owing to its low-density, high chemical stability and low production cost are used.Yet the low abrasion resistance of this material greatly limits its application in whizzer.Yet about the present invention, the whole auger conveyor with conveyer flight can be molded as a single piece by polymeric material, and wherein, the element that resistance to wears is spaced apart, and attaches to the conveyer flight for sufficient abrasion protection.
According to still another embodiment of the invention, the surface of auger conveyor also comprises the coating that resistance to wears.Therefore, the auger conveyor utilization of the polymeric material coating that resistance to wears is strengthened, and the combination of resistance to wear thus element and the coating that resistance to wears provides cost effective abrasion protection to whole auger conveyor.This coating can be realized by several painting method.A kind of such method is for for example utilizing organic bond and the slurry of the particle that resistance to wears injection coating.The percentage by volume of particle of resistance to wearing can change, but should be preferably more than slurry cumulative volume 30%, and have the particle that appropriate size distributes and can be used, in order to realize the high density (package density) that packs.Adhesive comprises nature and synthetic resin, such as acrylic resin, polyester, melmac and epoxy resin.The particle that resistance to wears can have different oxides, carbide, nitride and diamond, and they all have different hardness and different abrasion resistances is provided.Slurry sprays and applies and can easily carry out by any injection machine that can buy in market.The major advantage of this embodiment is abrasion protection, low production cost and the easy varied in thickness of the increase of coating.
According to another embodiment of the invention, the element that resistance to wears is embedded in the material of conveyer flight at least in part.The element that resistance to wears can for example be molded in the material of conveyer flight.The conveyer flight also can be provided with groove, and the element that resistance to wears is coupled in this groove, and further fastening by any common fastener means, these means such as be threaded, machinery cooperates, gummed or their any combination.For example, the material of conveyer flight can be furnished with the groove of the form that is cylindrical hole, and the element that resistance to wears with threaded part can be threaded connection with in this groove.By this embodiment, the element that resistance to wears is integrated in the conveyer flight at least in part, can provide auger conveyor thus, and it has smooth conveyer flight surface, and wherein, the element that resistance to wears exposes by non-embedded part or the opening of groove.Therefore, each flush of element and conveyer flight of resistance to wearing.Yet the element that resistance to wears also can be arranged to protrude slightly or stretch out from edge or the surface of conveyer flight.Especially, they can be arranged to slightly radially protrude for example 0.1-0.5mm, to strengthen the tangential cutting effect to the hard solid piece in the rotor.
According to another embodiment of the invention, conveyer flight material structure has undercut groove, is used for receiving the element that resistance to wears of corresponding form, keeps resistance to wearing element so that overcome centrifugal force during the rotation of auger conveyor.The element that resistance to wears can have different shapes, for example, and dish type, cube, triangle, trapezoidal, T shape, zigzag or irregularly shaped.Therefore, groove has correspondingly-shaped so that form fit to be provided, and its centrifugal force that overcomes during operation by the rotation generation of auger conveyor keeps resistance to wearing element.
According to still another embodiment of the invention, undercut groove is arranged in the surface of the conveyer flight of the direction of the solid outlet of rotor, undercut groove radially extends opening to be arranged on the radially outward edge place of conveyer flight, wherein, the element that resistance to wears is coupled in the groove, so that they are by exposing in the surface of conveyer flight in the radial direction opening and opening in the axial direction.By this embodiment, the element that resistance to wears provides the cutting effect to the hard solid piece at the part place of the conveyer flight that is exposed to more abrasive solid.In addition, the element that resistance to wears is integrated in the conveyer flight at least in part by described undercut groove, thereby provide the flight of the conveyer with relative smooth surface, this relative smooth surface has the integrated element that resistance to wears, its on described radial direction and described axial direction the surface of the solid outlet of rotor (that is, towards) provides shear action.
According to another embodiment of the invention, rotor and auger conveyor form cylindrical section and tapering part along rotation, and the part of the conveyer flight of element in the transition region that is configured between cylindrical section and the tapering part that resistance to wear is arranged.Therefore, needn't arrange the element that resistance to wears along the whole length of conveyer flight.On the contrary, they are only along being arranged by the part of the conveyer flight of hard abrasive solid piece impact.Find, in many examples, this place is configured in the cylindrical section of auger conveyor and the transition region place between the tapering part.
According to another embodiment of the invention, rotor arrangements is useful on the bracing or strutting arrangement of auger conveyor, bracing or strutting arrangement comprises the holding member at the solid outlet place that is configured in rotor, the end structure of holding member and screw thread conveyer becomes as follows cooperation: holding member rotatably receives and the end of support helix conveyer, to guarantee the space between the inwall of resistance to wear element and rotor on the conveyer flight.By this embodiment, bracing or strutting arrangement will be resisted any translational motion with respect to the auger conveyor of rotor during operation.In addition, the element that resistance to wears can contact with the inwall of rotor and damages it.In some cases, auger conveyor also can be mounted, with allow on the direction of rotation, with respect to certain translational motion of rotor.Yet, if auger conveyor moves too much towards the solid outlet of rotor, the risk that exists the tapering part (or the described transition region between cylindrical section and tapered portion) of auger conveyor to contact with the inwall of rotor.This is not problem during operation usually, and this is because the separating solids that gathers will push away auger conveyor in the direction from solid outlet, and the element that will resistance to wear remains on from the distance of the inwall of rotor.Yet, during the separation start-up period when the solid that does not gather when rotor, if and especially whizzer is furnished with vertical rotation (that is, as the whizzer that hangs), then exists the element that resistance to wears will contact and damage thus with the inwall of rotor its risk.Therefore, this embodiment will guarantee the space between the inwall of resistance to wear element and rotor on the conveyer flight.
According to another embodiment of the invention, holding member has recessed end, and it is suitable for receiving and the tip of support helix conveyer.Therefore, the end structure of holding member and auger conveyor becomes as follows cooperation: holding member rotatably receives and the end of support helix conveyer.
According to still another embodiment of the invention, holding member has the tip, and its recess that is suitable in the end with auger conveyor engages.Therefore, the end structure of holding member and auger conveyor becomes as follows cooperation: holding member rotatably receives and the end of support helix conveyer.
According to another embodiment of the invention, auger conveyor is mounted, with allow on the direction of rotation, with respect to certain translational motion of rotor, bracing or strutting arrangement is furnished with guiding mechanism, be used in the position that changes holding member along the direction of rotation, realize thus with respect to the position of the auger conveyor of rotor and the adjustment in space.Therefore, this embodiment provides the device in the gap between the inwall that is adjusted at resistance to wear element and rotor on the conveyer flight.
According to still another embodiment of the invention, the guiding mechanism of bracing or strutting arrangement comprises threaded holding member, and it can be threaded with the retainer body that is arranged in rotor, wherein, holding member is arranged to be threaded in the retainer body, to change the position of holding member along rotation.
According to another embodiment of the invention, bracing or strutting arrangement is connected in rotor by releasable fastening means.Bracing or strutting arrangement can pass through any fastening means (such as, by bracing or strutting arrangement being threaded or being clamped in the open end of rotor, that is, at the place, solid outlet end of rotor) attached.Bracing or strutting arrangement will form the extension of rotor thus at its place, end, this extension comprises the aperture that forms solid outlet.
The bracing or strutting arrangement that the invention still further relates to auger conveyor and be used for the whizzer of above restriction.
Description of drawings
To further specify the present invention by the following example is described with reference to the drawings.
Fig. 1 shows the sectional view according to whizzer of the present invention.
Fig. 2 shows the view according to auger conveyor of the present invention.
Fig. 3 shows according to sectional view of the present invention, that be used for the bracing or strutting arrangement of auger conveyor.
The specific embodiment
Fig. 1 shows according to an embodiment of the invention whizzer 1.Whizzer 1 comprises: rotor 2, and it can be with certain speed around vertical-rotation-axis R rotation; With auger conveyor 3, it is arranged in the rotor 2, and can be around identical rotation R but with the speed rotation of the rotary speed that is different from rotor 2.
Whizzer 1 intention vertically hangs in the mode by WO 99/65610 A1 indication.Hanging and drive whizzer 1 required device therefore is not described herein.
Rotor 2 has the upper rotor part part 2a of cylindricality basically and the lower rotor part part 2b of taper basically, and rotor portion 2a and 2b are connected to each other by screw.Certainly can use optional attaching parts.Cylindrical rotors part 2a comprises the extension that axially makes progress of the form that is hollow rotor shaft 4, and it is connected in the drive unit (not shown) and is used for making rotor 2 around rotation R rotation.
Other quill shaft 5 extends in the rotor 2 by the inside of hollow rotor shaft 4.This quill shaft 5 is drivingly coupled to auger conveyor by means of screw 6 support helix conveyers 3, and is called as hereinafter conveyer axle 5.Auger conveyor 3 comprises: conveyer part 3a on the cylindricality, and it axially extends in cylindrical rotors part 2a; Taper floor conveyer part 3b, it axially extends in taper lower rotor part part 2b; With conveyer flight 3c, it extends along upper cylindrical section 3a and the inferior pyramidal part 3b of auger conveyor 3 in a spiral manner.Auger conveyor 3 can have certainly more than a conveyer flight 3c, for example, two or three conveyer flights, it all extends along the inside of rotor 2 in a spiral manner.
Be used for treating extending through conveyer axle 5 at the inlet duct 7 of the processed liquid mixture of rotor 2, and in the inside of auger conveyor 3, be directed in the cylindrical central sleeve 8.Cylindrical central sleeve 8 defines the entrance chamber 9 for liquid mixture, and wherein, entrance chamber 9 is communicated with split cavity 10 via the distribution passage 11 that radially extends.
Split cavity 10 is annular space, and it is around entrance chamber 9, and comprises stacking of truncated cone-shaped separator disk 12.Stack in the cylindrical section 3a that radially is engaged in auger conveyor 3, and arrange coaxially with rotation R.Conical separation discs 12 axially keeps together between upper truncated cone-shaped gripper shoe 13 and lower truncated cone-shaped gripper shoe 14.As can be seen, lower supporting plate 14 forms one with cylindrical central sleeve 8.Separator disk 12 comprises the hole, and it forms passage 15, is used for liquid and axially flows and distribute and pass stacking of separator disk 12.Lower supporting plate 14 comprises the corresponding aperture (not shown), distributes thus passage 11 to be communicated with passage 15, is used for liquid and flows stacking axially of separator disk 12.Upper backup pad 13 comprises many holes 16, and it makes the inner radial annular space 17 in the stacking of separator disk 12 be connected with liquid outlet chamber 18.This liquid can for example be oil.The so-called boundary dish (paring disc) 19 that is used for the liquid of emission purification is configured in the outlet chamber 18.Boundary dish 19 is fixing, and firmly is connected in inlet duct 7, and wherein, boundary dish 19 is communicated with exit passageway 20, and exit passageway 20 extends in the outlet conduit around inlet duct 7.
Radially around the stacking of separator disk 12, wherein, cylindrical section 3a comprises many axially extended apertures 21 to the cylindrical section 3a of auger conveyor 3, and it distributes around rotation R.Axially extended aperture 21 is arranged to allow the particle that separates to pass and be deposited on the inwall of cylindrical section 2a of rotor 2.Liquid also can pass the aperture 21 among the cylindrical section 3a of auger conveyor 3 certainly.
Rotor 2 its lower end have for separating of the solid outlet 22 of particle (solid).In conjunction with this solid outlet 22, rotor can by the container (not shown) around, be used for interception and collect the solid that leaves solid outlet 22.Solid transports away towards solid outlet 22 transportations and from solid outlet 22 by means of conveyer flight 3c.Therefore, during operation, auger conveyor 3 is arranged to be different from the speed rotation of rotor 2, and solid is by the conveyer flight 3c discharging of auger conveyor 3 thus.This differential velocity between rotor 2 and the auger conveyor 3 can be constant or changes in a known way, for example depends on about the expectation aridity of the solid of discharging and/or drives the amount that auger conveyor 3 is used for the required moment of torsion of discharging solid.If solid is very difficult to discharging, rotor 2 even can be with cycling then, this circulation comprises the solid discharge stage of the rotary speed that is lower than separation phase.In this mode, solid more easily discharges, and this is because the centrifugal force in the rotor 2 reduces at the lower speed place.Known way with this cycling whizzer is further described in WO 2011/053224 A1.In addition, after interrupting (or time-out) operation, whizzer can be cleaned before restarting.Therefore, can have solid in the stacking of separator disk 12 and some remaining mixtures of liquid, it need to be cleaned before restarting lock out operation.This can be by making the auger conveyor that stacks 3 with separator disk 12 in static (and empty) rotor 2 inward turnings then realizes.In this mode, remaining mixture will be from stacking the inwall of dishing out and entering stationary rotor, and remaining mixture auger conveyor 3 by means of gravity and rotation on this inwall is easily discharged from solid outlet 22.
Auger conveyor 3 is made one by polymeric material, and this polymeric material is such as plastics or nylon, and it can be, and fiber strengthens.Tapering part 3b has hollow inside or cavity, and it is sealed or to open on every side.If expectation, then cavity can be filled with and have relatively low-density materials, such as foamed plastics etc.In addition, the inferior pyramidal part 2b of rotor 2 is furnished with the bracing or strutting arrangement 24 for auger conveyor, and its combined Fig. 3 further describes.
Fig. 2 illustrates auger conveyor 3 isolator, and the amplifier section of conveyer flight 3c is shown, and it is provided with the element 23 that resistance to wears along conveyer flight edge placement.The element 23 that resistance to wears is opened with the clearance gap of resistance to wearing between the element 23 of mutual vicinity,, makes the mid portion of the conveyer flight element that do not resistance to wear that is.The extension of the mid portion of conveyer flight 3c is than along at least five times greatly of the extensions of each element 23 that resistance to wears at the edge of flight 3c.As can be seen, the element 23 that resistance to wears is the form of the abrasion-resistant material of relatively little cutting insert or fritter, and the cutting insert that this is relatively little or the abrasion-resistant material of fritter are to attach to conveyer flight 3c from long toward each other distance.The element 23 that resistance to wears is made by metal and diamond composite, and this metal has the relative sharp keen edge that is arranged to for cutting hard grinding block with diamond composite.
The element 23 that resistance to wears is only arranged along the part of conveyer flight 3c.Therefore, the resistance to wear part of the conveyer flight 3c of element 23 in the transition region 3ab between the cylindrical section 3a that is configured in auger conveyor 3 and the tapering part 3b is arranged.This part of conveyer flight 3c in this particular example major part is exposed to grinding by the hard solid piece.Therefore, in this embodiment, find, solid will tend to gather and form the hard grinding block at this transition region place between cylindrical section 2a and tapering part 2b on the inwall of rotor 2.
As can be seen, the element 23 that resistance to wears partly is embedded in the material of conveyer flight, and wherein, this material structure has undercut groove 3d, is used for receiving the element 23 that resistance to wears of corresponding form.These undercut groove 3d is arranged in the surface of the conveyer flight of the direction of the solid outlet 22 of rotor 2, undercut groove 23 is radially extended, opening is arranged on the radially outward edge place of conveyer flight 3c, wherein, the element 23 that resistance to wears is coupled among the groove 3d, so that they are by exposing in the radial direction opening and the described surface of opening in the axial direction at the conveyer flight.In this case, each undercut groove 3d has trapezoidal shape to provide form to cooperate, and is used for overcoming the element 23 that resistance to wears that centrifugal force that the rotation by during operation auger conveyor 3 produces keeps trapezoidal shape.In addition, these elements 23 that resistance to wear utilize epoxide-resin glue to be securely attached to groove 3d.
Fig. 3 shows the inferior pyramidal part 2b of rotor 2, and it is furnished with the bracing or strutting arrangement 24 for auger conveyor 3.Bracing or strutting arrangement 24 comprises the retainer body 25 of cup-shaped, and it forms the extension of inferior pyramidal rotor portion 2b.The base section of the body of cup-shaped is provided with Axial-running Out oral pore 26 and oral pore 27 radially, is used for from rotor 2 discharging solids.The body 25 of cup-shaped is provided with holding member 28 in addition, and it can be threaded with the bottom center portion of retainer body 25.As can be seen, holding member 28 has the form of threaded bolt, and it is most advanced and sophisticated 29 that this threaded bolt has, and its recess 30 that is suitable in the dish 31 with the end that is arranged in auger conveyor 3 engages.Therefore, the end structure of holding member 28 and auger conveyor 3 becomes as follows cooperation: holding member 28 can receive and the end of support helix conveyer 3 rotatably, to guarantee the space between the inwall of resistance to wear element and rotor on the conveyer flight.Therefore, bracing or strutting arrangement 24 will be resisted any translational motion with respect to the auger conveyor 3 of rotor 2 during operation.
In this embodiment, auger conveyor 3 is mounted, with allow on the direction of rotation R with respect to certain translational motion of rotor 2.In this embodiment, be provided for changing holding member 28 and the guiding mechanism of the position of auger conveyor thus along the direction of rotation R.This realizes the adjustment in position and the space between the inwall of resistance to wear element 23 and rotor 2 on the conveyer flight 3c thus by realizing in the retainer body 25 that holding member 28 is threaded in cup-shaped.Holding member 28 is locked at desired locations by means of nut 31, and nut 31 is screwed on the part of holding member 28 of the outside that is configured in retainer body 25.
Whole bracing or strutting arrangement 24 removably is connected in the inferior pyramidal part 2b of rotor 2 by means of screw or bolt 32, screw or bolt 32 are threaded onto in mounting flange 33 and 34, and mounting flange 33 and 34 is arranged in the upper edge portion of retainer body 25 of cup-shaped and the corresponding lower edge office of the 2b of cone rotor section.
The present invention is not subject to disclosed embodiment, but changes in the scope of the claim that can state below and modification.

Claims (17)

1. a whizzer (1), it comprises rotor (2), it can center on rotation (R) rotation, described rotor (2) comprises the entrance (7 that has be used to the liquid mixture that comprises solid particle, 9,11) split cavity (10), be used at least one liquid outlet (18 from the separating liquid of described liquid mixture, 19,20), with the solid outlet (22 for separating of solid particle, 26,27), the speed that auger conveyor (3) is arranged to be different from described rotor (2) in described rotor (2) around described rotation (R) rotation, described auger conveyor (3) has at least one conveyer flight (3c), be used for transporting away from described solid outlet (22) towards described solid outlet (22) the described separate solid particles of transportation and with it at described rotor (2), described conveyer flight (3c) is provided with the element that resistance to wears (23) along its edge placement, it is characterized in that, the described element that resistance to wears (23) is spaced apart with the gap (23a) between the element that resistance to wears (23) of mutual vicinity.
2. whizzer according to claim 1, it is characterized in that, along the extension in the described gap (23a) at the edge of described conveyer flight (3c) than the large several times of extension along each element that resistance to wears (23) at the edge of described conveyer flight (3c).
3. whizzer according to claim 1 and 2 is characterized in that, described auger conveyor (3) is by polymers manufacturing.
4. whizzer according to claim 3 is characterized in that, the surface of described auger conveyor (3) also comprises the coating that resistance to wears.
5. according to claim 3 or 4 described whizzers, it is characterized in that, the described element that resistance to wears (23) is embedded in the material of described conveyer flight (3c) at least in part.
6. whizzer according to claim 5 is characterized in that, the described element that resistance to wears (23) by molded, be threaded, machinery cooperates, gummed or their any combination attach to described conveyer flight.
7. according to claim 5 or 6 described whizzers, it is characterized in that, the material structure of described conveyer flight (3c) has undercut groove (3d), be used for receiving the described element that resistance to wears (23) of corresponding form, keep the described element that resistance to wears (23) so that during the rotation of described auger conveyor, overcome centrifugal force.
8. whizzer according to claim 7, it is characterized in that, described undercut groove (3d) is arranged in the surface (3e) of the described conveyer flight of the direction of the solid outlet (22) of described rotor (2), described undercut groove (3d) is radially extended, opening (3d ') is arranged on the radially outward edge place of described conveyer flight (3c), wherein, the described element that resistance to wears (23) is coupled in the described groove (3d), so that they are by both expose in the surface of described conveyer flight (3c) (3e) in the radial direction described opening (3d ') and described opening in the axial direction (3d ").
9. according to each the described whizzer in the aforementioned claim, it is characterized in that, described rotor (2) and described auger conveyor (3) form cylindrical section (2a along described rotation (R), 3a) and tapering part (2b, 3b), the part of the described conveyer flight (3c) of the described element that resistance to wears (23) in the transition region (3ab) that is configured between described cylindrical portion and the described tapered portion is arranged.
10. according to each the described whizzer in the aforementioned claim, it is characterized in that, described rotor (2) is furnished with the bracing or strutting arrangement (24) for described auger conveyor (3), described bracing or strutting arrangement (24) comprises holding member (28), the central part office that it attaches to described rotor (22) and is configured in described solid outlet (22), the end (30) of described holding member (28) and described auger conveyor (3) is configured to cooperate as follows: described holding member (28) rotatably receives and supports the end of described auger conveyor (3), to guarantee the space between the inwall of the described element that resistance to wears (23) on the described conveyer flight (3c) and described rotor (2).
11. whizzer according to claim 10 is characterized in that, described holding member (28) has recessed end, and it is suitable for receiving and supporting the tip of described auger conveyor (3).
12. whizzer according to claim 10 is characterized in that, described holding member (28) has tip (29), and its recess that is suitable in the end (30) with described auger conveyor (3) engages.
13. the described whizzer of each according to claim 10-12, it is characterized in that, described auger conveyor (3) is mounted, with allow on the direction of described rotation (R) with respect to certain translational motion of described rotor (2), described bracing or strutting arrangement (24) is furnished with guiding mechanism (25,28,31), be used in the position that changes described holding member (28) along the direction of described rotation (R), thus, realization is with respect to the position of the described auger conveyor (3) of described rotor (2) and the adjustment in space.
14. whizzer according to claim 13, it is characterized in that, the guiding mechanism of described bracing or strutting arrangement (24) comprises threaded holding member (28), it can be threaded with the retainer body (25) that is arranged in described rotor (2), wherein, described holding member (28) is arranged to be threaded in the described retainer body (25), to change the position of described holding member (28) along described rotation (R).
15. the described whizzer of each according to claim 9-14 is characterized in that, described bracing or strutting arrangement (24) but be connected in described rotor (2) by releasing fastener spare (32).
16. an auger conveyor (3), it is used for each described whizzer (1) according to claim 1-12.
17. a bracing or strutting arrangement (24), it is used for each described whizzer (1) according to claim 10-15.
CN2011800414410A 2010-08-27 2011-08-15 A centrifugal separator Pending CN103052448A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP10174374.8A EP2422882B1 (en) 2010-08-27 2010-08-27 A centrifugal separator
EP10174374.8 2010-08-27
PCT/EP2011/064032 WO2012025416A2 (en) 2010-08-27 2011-08-15 A centrifugal separator

Publications (1)

Publication Number Publication Date
CN103052448A true CN103052448A (en) 2013-04-17

Family

ID=43536670

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011800414410A Pending CN103052448A (en) 2010-08-27 2011-08-15 A centrifugal separator

Country Status (7)

Country Link
EP (1) EP2422882B1 (en)
JP (1) JP5852118B2 (en)
KR (1) KR101477440B1 (en)
CN (1) CN103052448A (en)
BR (1) BR112013002374B1 (en)
RU (1) RU2538583C2 (en)
WO (1) WO2012025416A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106475234A (en) * 2015-08-26 2017-03-08 苏州瑞威离心分离技术有限公司 Horizontal spiral discharge sedimentation centrifuge
CN114308566A (en) * 2022-03-17 2022-04-12 江苏高凯精密流体技术股份有限公司 A spiral material feeding unit in variable clearance for carrying granule glue

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2992574B1 (en) 2012-06-29 2014-08-08 Commissariat Energie Atomique LAMINAR FLUX CENTRIFUGAL SEPARATOR
DE202018100291U1 (en) * 2018-01-18 2018-03-07 Gea Mechanical Equipment Gmbh centrifuge
WO2020188607A1 (en) * 2019-03-20 2020-09-24 Ymir Technologies Ehf. Integrated decanter and centrifuge separator for three-phase separation
DE102019126325A1 (en) * 2019-09-30 2021-04-01 Gea Mechanical Equipment Gmbh Solid bowl screw centrifuge

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2174857A (en) * 1936-08-13 1939-10-03 Smidth & Co As F L Centrifugal separator
GB2273253A (en) * 1992-12-10 1994-06-15 Alfa Laval Sharples Ltd Screw conveyor for centrifuges
CN2203903Y (en) * 1994-10-25 1995-07-26 徐其国 Filtering creen type centrifuge
CN1809423A (en) * 2003-06-18 2006-07-26 阿尔法拉瓦尔股份有限公司 A screw conveyor for a decanter centrifuge
CN2915783Y (en) * 2006-05-15 2007-06-27 林记元 Highly abrasive blade embedded with hard alloy block
CN101347766A (en) * 2008-08-18 2009-01-21 江苏华大离心机制造有限公司 Helical-conveyer centrifugal
CN101687203A (en) * 2007-05-10 2010-03-31 阿尔法拉瓦尔股份有限公司 Method and device for cleaning fluid in a centrifugal separator
CN201559981U (en) * 2009-11-04 2010-08-25 洛阳新安电力集团新型墙体材料有限公司 Auger blade for effectively improving abrasion resistance performance

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU416103A1 (en) * 1972-07-28 1974-02-25
JPS57932Y2 (en) * 1977-01-20 1982-01-07
SU737018A1 (en) * 1977-11-28 1980-05-30 Всесоюзный научно-исследовательский и проектно-конструкторский институт добычи угля гидравлическим способом Settling centrifuge worm screw
DE2942451A1 (en) * 1979-10-20 1981-04-23 Klöckner-Humboldt-Deutz AG, 5000 Köln Slurry-separating centrifuge with thickened slurry discharge apertures - whose opening and closing controls incorporate a drive
DK148736C (en) * 1981-12-09 1986-03-03 Alfa Laval Separation As TRANSPORT SEAL, NAME FOR A DECANTER CENTER
JPS59166852U (en) * 1983-04-19 1984-11-08 石川島播磨重工業株式会社 mass transfer equipment
DE3601949A1 (en) * 1986-01-23 1987-07-30 Kloeckner Humboldt Deutz Ag Device for fastening highly wear-resistant plates to the helix of a screw conveyor
JPS6332653U (en) * 1986-08-14 1988-03-02
US5364335A (en) * 1993-12-07 1994-11-15 Dorr-Oliver Incorporated Disc-decanter centrifuge
US5429581A (en) * 1994-03-07 1995-07-04 Dorr-Oliver Incorporated Wear-resistant tile surfacing for a centrifuge conveyor
JP3518888B2 (en) * 1994-04-28 2004-04-12 共栄汎用機サービス株式会社 Screw conveyor
AU3867195A (en) * 1994-11-09 1996-06-06 Incentra Decanter centrifuge
JPH10128156A (en) * 1996-11-05 1998-05-19 Nippei Toyama Corp Screw conveyor type centrifugal separator
SE9802116D0 (en) * 1998-06-15 1998-06-15 Alfa Laval Ab decanter
DK175539B1 (en) * 2002-03-14 2004-11-29 Alfa Laval Copenhagen As Decanter centrifuge with wear reinforcement in inlet
KR100857057B1 (en) * 2003-11-18 2008-09-05 주식회사 로얄정공 The Surface Hardening Method of Decanter Centrifuge for Industrial, Sewage and Waste Water Treatment
RU2346752C1 (en) * 2007-05-04 2009-02-20 Открытое акционерное общество "Свердловский научно-исследовательский институт химического машиностроения" (ОАО "СвердНИИхиммаш") Suspension separation centrifuge
SE534386C2 (en) 2009-10-29 2011-08-02 Alfa Laval Corp Ab Centrifugal separator and method for separating solid particles

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2174857A (en) * 1936-08-13 1939-10-03 Smidth & Co As F L Centrifugal separator
GB2273253A (en) * 1992-12-10 1994-06-15 Alfa Laval Sharples Ltd Screw conveyor for centrifuges
CN2203903Y (en) * 1994-10-25 1995-07-26 徐其国 Filtering creen type centrifuge
CN1809423A (en) * 2003-06-18 2006-07-26 阿尔法拉瓦尔股份有限公司 A screw conveyor for a decanter centrifuge
CN2915783Y (en) * 2006-05-15 2007-06-27 林记元 Highly abrasive blade embedded with hard alloy block
CN101687203A (en) * 2007-05-10 2010-03-31 阿尔法拉瓦尔股份有限公司 Method and device for cleaning fluid in a centrifugal separator
CN101347766A (en) * 2008-08-18 2009-01-21 江苏华大离心机制造有限公司 Helical-conveyer centrifugal
CN201559981U (en) * 2009-11-04 2010-08-25 洛阳新安电力集团新型墙体材料有限公司 Auger blade for effectively improving abrasion resistance performance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106475234A (en) * 2015-08-26 2017-03-08 苏州瑞威离心分离技术有限公司 Horizontal spiral discharge sedimentation centrifuge
CN106475234B (en) * 2015-08-26 2018-10-26 苏州瑞威离心分离技术有限公司 Horizontal spiral discharge sedimentation centrifuge
CN114308566A (en) * 2022-03-17 2022-04-12 江苏高凯精密流体技术股份有限公司 A spiral material feeding unit in variable clearance for carrying granule glue

Also Published As

Publication number Publication date
EP2422882A1 (en) 2012-02-29
WO2012025416A2 (en) 2012-03-01
KR20130045939A (en) 2013-05-06
BR112013002374A2 (en) 2016-05-24
RU2538583C2 (en) 2015-01-10
EP2422882B1 (en) 2013-06-19
KR101477440B1 (en) 2014-12-29
BR112013002374B1 (en) 2020-06-16
RU2013113630A (en) 2014-10-10
WO2012025416A3 (en) 2012-04-26
JP5852118B2 (en) 2016-02-03
JP2013536073A (en) 2013-09-19

Similar Documents

Publication Publication Date Title
CN103052448A (en) A centrifugal separator
US6267250B1 (en) Centrifuge with partial wear resistant basket
CN102006940B (en) A centrifugal separator
CN102333597A (en) Agitator ball mill
WO2013084981A1 (en) Horizontal dry mill
FI81731B (en) RINGSPALTKULKVARN.
US9321058B2 (en) Centrifugal liquid separation machine to efficiently flow multi-phase solids from a heavy phase discharge stream with a solids plow
EP0766602A1 (en) Centrifugal separator with conical bowl section and axially spaced recesses
US20130210601A1 (en) Centrifugal separator
US20040132601A1 (en) Centrifugal separator with fluid injection openings formed in a separate strip insert
US9393574B1 (en) Wear insert for the solids discharge end of a horizontal decanter centrifuge
EP3419732A1 (en) Method and apparatus for centrifugal concentration using vibratory surfaces and rotor bowl for use therein
CN87101899A (en) Wheel for vacuum projection grinder
CA2354460C (en) Atomizer wheel with wear-resistant inserts
US4541574A (en) Milling process and roller mill
RU2360739C1 (en) Centrifugal vibratory concentrator
US11325160B2 (en) Separation device
CN207401718U (en) A kind of Separate Fine-grained Minerals efficient classification device
CA2443239C (en) Centrifugal separator with fluid injection openings formed in a separate strip insert
KR200206321Y1 (en) Fine grained powder filtering device of wet milling machine
US5897774A (en) Centrifugal separator with angulated vanes
JP2000350945A (en) Decanta type centrifugal separator with chattering prevention function
JPS61216744A (en) Crusher
RU2162014C1 (en) Plant for grinding loose materials
KR20210117333A (en) centrifugal

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20130417