EP2465616B1 - Nettoyeur de tamis pour séparateur plan - Google Patents

Nettoyeur de tamis pour séparateur plan Download PDF

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Publication number
EP2465616B1
EP2465616B1 EP20100015686 EP10015686A EP2465616B1 EP 2465616 B1 EP2465616 B1 EP 2465616B1 EP 20100015686 EP20100015686 EP 20100015686 EP 10015686 A EP10015686 A EP 10015686A EP 2465616 B1 EP2465616 B1 EP 2465616B1
Authority
EP
European Patent Office
Prior art keywords
screen
sieve
arms
cleaner
cleaning
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.)
Active
Application number
EP20100015686
Other languages
German (de)
English (en)
Other versions
EP2465616A1 (fr
Inventor
Joe Klingler
Mike Branson
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.)
Sefar AG
Original Assignee
Sefar AG
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
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Application filed by Sefar AG filed Critical Sefar AG
Priority to EP20100015686 priority Critical patent/EP2465616B1/fr
Publication of EP2465616A1 publication Critical patent/EP2465616A1/fr
Application granted granted Critical
Publication of EP2465616B1 publication Critical patent/EP2465616B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/50—Cleaning
    • B07B1/52—Cleaning with brushes or scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/50—Cleaning
    • B07B1/52—Cleaning with brushes or scrapers
    • B07B1/522—Cleaning with brushes or scrapers with brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/50—Cleaning
    • B07B1/52—Cleaning with brushes or scrapers
    • B07B1/526—Cleaning with brushes or scrapers with scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/50—Cleaning
    • B07B1/54—Cleaning with beating devices

Definitions

  • the invention relates to a screen cleaner for a Plansichter, comprising a base body which has at least three extending from a central region outwardly arms, which comprise on their contact side cleaning heads for sweeping a screen surface of Plansichters.
  • document DE 29 802 807 U1 discloses such a sieve cleaner.
  • a plan sifter is a screening and screening machine for separating grain components that are produced after grinding.
  • each Plansichter are several reformabmaschine with Siebstapeln that, depending on the design, usually contain between two to thirty sieves.
  • the sieves are usually arranged one above the other and are offset by a arranged on the Plansichter drive in a horizontal circular oscillation.
  • a screen consists of a screen frame, which usually has a rectangular or square shape and has a partially closed bottom. At the top of the screen frame a screen surface is attached. The viewing material is fed via product channels on the screen surface. As a rule, the product channels are arranged laterally of the sieve frame.
  • the horizontal circular vibration of the screens spreads the screen material over the screen surface, with the particles of screen material smaller than the mesh size of the screen surface falling onto the bottom of the screen frame. From there, the material thus sighted can be fed to a further vision process via delivery slots integrated in the frame.
  • traveling brushes or screen cleaners are applied to the bottom of the screen frame.
  • These screen cleaners have the task of cleaning the screen surface on its underside, thereby keeping as much of the screen surface as possible open.
  • the sieve cleaner can also fulfill the function of a floor cleaner that can handle the Dissipate the sighted material that accumulates on the bottom of the screen frame to the dispensing slots.
  • a screen cleaner which has brush or knob-like cleaning heads, wherein the majority of the cleaning heads are arranged substantially in a row.
  • the screen cleaner has a spacer which is not or only occasionally equipped with cleaning heads, and protrudes to one side of the row of cleaning heads.
  • the spacer is T-shaped in plan with respect to the discharge arms of the sieve cleaner having the row of cleaning heads. If this screen cleaner abuts the edge of the screen frame, it can be aligned so that the row of cleaning heads runs approximately parallel to the edge of the screen frame. This has the advantage that near the edge of a relatively large area of the screen surface is swept by the cleaning heads, while the then inwardly projecting spacers is less or not at all cleaning.
  • the US 2008 001 75 55 A1 describes a plate-shaped sieve cleaner in diamond shape with plastic bristles or knob-like humps along the side edges of the sieve cleaner.
  • the plate-shaped cleaning body has a triangular shape with outwardly curved legs and outstanding cleaning elements on the entire outer peripheral portion.
  • the corner areas of the screen surface are statistically less swept by the screen cleaners moved by the shaking movement of the plan sifter than the central area of the screen surface, the corner areas tend to become clogged due to the overlaying viewing material. This effect is reinforced by the fact that the viewing material is usually supplied from the side via product channels on the viewing cover, and therefore accumulates particularly at the corners.
  • the invention is based on the object of creating a screen cleaner, which can be achieved in a particularly efficient cleaning of the screen surface.
  • the sieve cleaner according to the invention is characterized in that the arms have at their outer ends arrow-shaped outer edges and the cleaning heads along the outer edges are arranged arrow-shaped and that the arms are diamond-shaped.
  • a basic idea of the invention can be seen in the provision of a screen cleaner for a plan sifter, by means of which especially the corner regions and also the edge regions of the screen surface are cleaned.
  • the arms of the sieve cleaner have arrow-shaped outer edges at their outer ends, cleaning heads of which are arranged on the side facing the sieve surface.
  • the arrow shape has an acute angle of less than 90 °, preferably between 20 ° and 80 °. Due to the arrow-shaped design of the arms, the sieve cleaner can reach into the corner regions of the sieve frame and there enable a good cleaning of the sieve surface.
  • the arrangement of the cleaning heads along the outer edges supports the corner cleaning.
  • the arms are each diamond-shaped.
  • Cleaning heads can be attached to each of the two outer converging outer edges of the rhombus.
  • the corner regions of the rhombus are rounded to prevent tilting of the sieve cleaner between the sieve surface and the sieve bottom, while the sieve cleaner is in motion due to the shaking movements of the planifier.
  • Another advantage of the diamond-shaped structure is that the cross-section of each arm is increased, thereby making it difficult to deform or break an arm.
  • the arms may also be designed in the form of a deltoid or a kite quadrangle, in which two sides each have a greater length than the two remaining sides of the kite quadrangle. Through this Arrangement, a weight distribution from the center to the outside, which improves a desired tilting and hitting in operation.
  • At least one recess is provided along the arms.
  • the recess has the function that the surface of the screen cleaner is reduced, so that the bearing surface is reduced for falling from the screen surface bombardgut. As a result, less visible material can accumulate on the surface of the sieve cleaner, which would restrict a movement of the sieve cleaner by the additional weight.
  • the arms can also be provided with a plurality of recesses. The middle region preferably remains free of cleaning heads.
  • the cleaning heads are formed as brushes or nubs.
  • the brushes have the function to sweep the screen surface, thereby largely protecting the screen surface from blockages.
  • the bristles may be natural bristles or plastic bristles.
  • the brushes preferably have very fine plastic bristles with a diameter in the range from 100 ⁇ m to 200 ⁇ m.
  • the cleaning effect of the sieve surface can also be achieved by causing the sieve cleaner to vibrate due to the shaking movement of the sieve, thereby striking its arms against the sieve surface from below. It is also advantageous if the cleaning heads are formed as nubs, which come through the bumps in contact with the screen surface.
  • the cleaning heads can also be sprung attached to the arms of the sieve cleaner, on the one hand to gently clean the screen surface, and on the other hand to prevent increased wear of the cleaning heads.
  • the arms at the tip of the arrow-shaped outer edge on a projection to the contact side has the function to prevent the screen cleaner gets stuck in a dispensing slot, the height of which corresponds to the height of the screen cleaner. Among other things, prevents the projection that the cleaning heads come in direct contact with the side walls of the screen frame, which protects mainly designed as a brush cleaning heads from damage.
  • a cleaning cam is arranged, which projects outwardly and the top is rounded.
  • the screen cleaner can also act as a bottom scraper to convey the accumulated at the bottom of the screen frame viewing material by its movement to the dispensing slots.
  • the cleaning cam can also enter the exit slots of the screen frame to convey the removal of the screened material from the exit slot.
  • the cleaning cam has a greater length than the diameter of one side of the screen frame in order to be able to roam through the dispensing slot in its full length. The tip of the cleaning cam may be rounded to prevent tilting.
  • a projection is arranged, which has the same height as the cleaning cam.
  • the screen cleaner can thereby rest on the cleaning cam and the projection on the bottom of the screen. It can also be arranged on several arms projections on the support side.
  • the screen cleaner thus remains movable on the sieve bottom, even if the material spotted on the floor accumulates.
  • the screen cleaner can thus have the function of a Bodenausippors.
  • the projections can thereby assist the action of the cleaning cam.
  • It can also be provided a further central projection, which is arranged in the central region of the support side of the screen cleaner and whose height is slightly higher than that of the projections and the cleaning cam. In this way, tilting movements of the screen cleaner are promoted, which cause the arms of the screen cleaner beat with the cleaning heads against the screen surface.
  • the floor which is usually also a screen surface, cleaned.
  • a gap is formed between the arms, which in a plan view of the contact side has an approximately triangular shape.
  • the edges of the gap are preferably rounded. Due to the triangular shape of the gaps, the screen cleaner can perform its function, even if due to technical configurations of Plansichters Devices such as support struts are mounted on the bottom of the screen frame.
  • the arms are arranged at a uniform angular distance from one another. This symmetrical arrangement of the arms favors a uniform cleaning of the screen surface. Furthermore, another arm preferably attaches to one side of the screen frame when the screen cleaner comes into contact with one side of the screen frame. The cleaning effect on the screen surface in the vicinity of the side walls of the screen frame is thereby enhanced. In addition, the symmetrical shape of the screen cleaner promotes a uniform wear of the cleaning heads.
  • the sieve cleaner is made in one piece from a blue material.
  • the production can preferably take place via a cost-effective injection molding process.
  • the blue color of the starting material has the advantage that the finished part is colored blue. If parts of the screen cleaner become detached due to the stress of the cleaning process, the detached pieces are easily visible in the normally white screenings and can therefore be easily sorted out.
  • the color of the raw material is not limited to the blue color. In the food sector, however, unlike other colors, such as green, red, yellow, orange, the color blue does not occur with regrind. Thus, blue is always good in the sensitive food sector.
  • the sieve cleaner is made of elastic plastic material. This results in a higher load capacity of the screen cleaner, which reduces the likelihood that the screen cleaner breaks and / or replace individual parts of the screen cleaner.
  • Another advantage is that the material of the sieve cleaner yields, for example, if the arms make shocks on the sieve surface due to the shaking movements. This can reduce the load on the screen surface and cleaning heads.
  • FIG. 1 an inventive screen cleaner 10 is shown in a plan view of its contact page 35. See also Fig. 2 and 3 , The contact side 35 is adapted to contact the underside of a screen surface 70, as in FIG Fig. 7 shown.
  • the sieve cleaner 10 in this case has a plate-shaped base body 20, from the central region of which three arms 30 extend radially outward. The same arms 30 are formed diamond-shaped. At the outer edges 32 each arrow seven cleaning heads 40 are arranged.
  • Each arm 30 each includes a circular recess 44.
  • the arms 30 are arranged at a uniform angular distance from each other and each form an approximately triangular gap 38, whose formed from the sides of the arms 30 inner corner regions are rounded.
  • On one of the arms 30 a radially outwardly projecting rod-shaped cleaning cam 5 on the contact side 35 facing away from bearing surface 25 is arranged, such as in Fig. 2 shown.
  • a central projection 52 is arranged on the base body 20 on a support side 25, with which the sieve cleaner 10 can be placed on a bottom 60 of a sieve frame 55, as in FIG Fig. 7 shown.
  • the cleaning cam 5 is formed on the support side 25 of the base body 20 on one of the arms 30 of the sieve cleaner 10. At the remaining two arms 30 is at the bottom in each case a block-like, triangular projection 48 which has the same height as the cleaning cam 5.
  • the higher cylindrical projection 52 is laterally stiffened by triangular struts 15.
  • At the contact side 35 of the sieve cleaner 10 are each attached to the outer edges 32 of the arms 30 seven barrel-shaped cleaning heads 40 arrow-shaped.
  • the total of 21 cleaning heads 40 are formed as knobs with rounded ends.
  • Fig. 3 shows the cross-section of a sieve cleaner 10 through the plane AA, with the cleaning heads 40 alternatively being in the form of brushes of a plurality of bristles or fibrils.
  • the bristles are anchored in barrel-shaped sockets.
  • small protrusions 46 are arranged at the tip of the arms 30, which have a lower height than the brush 48, but a greater height than the base. As a result, an overload and thus excessive wear of the bristles is avoided.
  • Fig. 4 the support side 25 of the sieve cleaner 10 according to the invention is shown.
  • the screen cleaner 10 is supported on its support side 25 on the central projection 52, the attached to an arm 30 cleaning cam 50 and the other two arms 30 mounted projections 48 on the bottom 60 of the screen frame 55.
  • the adjacent outer edges 32 of the respective opposite arms 30 are at an obtuse, outwardly directed angle to each other. The straight outer edges 32 thus allow a good cleaning of the marginal edges and an effective rolling movement on the screen frame 55th
  • the screen cleaner 10 of the invention is placed on the bottom 60 of a screen 50, wherein the base of the bottom 60 is enclosed by a screen frame 55.
  • the screen 50 is installed together with a plurality of superimposed screens 50 in a plan sifter, which puts the wires 50 in a horizontal circular oscillation.
  • This circular oscillation is the on the Soil 60 of the screen 50 launched sieve cleaner 10 set in motion, wherein he eratisch the entire surface of the bottom 60 eratisch.
  • Fig. 6 the screen cleaner 10 is shown in operation, wherein a movement on the bottom 60 of the screen 50 is indicated schematically.
  • the rolling behavior of the sieve cleaner 10 is shown concretely when it impinges on one side of the sieve frame 55 by the shaking movement of the sieve 50.
  • a rounded arm tip 33 of the screen cleaner 10 contacts one side of the screen frame 55, the screen cleaner 10 tends to rotate about the arm tip 33.
  • a straight outer edge 32 of the contacting arm 30 comes into contact with the side surface of the screen frame 55.
  • the cleaning heads 40 arranged along the outer edge 32 can thus efficiently clean a screen surface 70, which is mounted on an upper side of the screen frame 55, in this edge region , Due to the 3-arm construction of the sieve cleaner 10 with the mutually directed at an obtuse angle outer edges 32 of the adjacent arms 30, the rolling movement is further led to the state which in Fig. 6 is shown by a dashed line.
  • the screen cleaner 10 is located on the screen frame 55 with two lateral corner regions of two diamond-shaped arms 30.
  • the arrow-like shape of the arm tip 33 with an acute angle of about 80 ° also promotes entry into the corner regions of the screen frame 55, which in addition due to the corresponding arrowhead arranged cleaning heads 44, the cleaning effect on the screen surface 70 is reinforced in the corner regions of the screen frame 55 ,
  • Fig. 7 is a section of a screen 50 shown with a resting on its bottom 60 sieve cleaner 10 through the plane AA.
  • the knob-like cleaning heads 40 which are attached to the contact side 35, are in light contact with the screen surface 70 attached to the screen frame 55 and sweep them over during movement.
  • the material to be sighted is now transported via product channels 65 from the side to the screen surface 70 and distributed over the entire screen surface 70 by the horizontal circular motion of the screen 50.
  • the sieve cleaner 10 now has the function of the sieve surface 70 with its cleaning heads 40, which may be designed as nubs or brushes to paint, and thus prevent clogging of the screen surface 70 by resting sight material.
  • the cleaning cam 5 attached to the support side 25 is designed to be able to enter a dispensing slot 75 on the screen frame 55 in order to assist the removal of the material collected on the bottom 60 there.
  • the protrusions 48 and the central protrusion 52 help to convey the material being scanned toward the dispensing slot 75.
  • the screen cleaner 10 can thereby fulfill the function of a Bodenausippors.

Landscapes

  • Combined Means For Separation Of Solids (AREA)

Claims (10)

  1. Nettoyeur de tamis (10) convenant pour un blutoir oscillant, avec un corps de base (20), qui comprend au moins trois bras (30) s'étendant à partir d'une région centrale vers l'extérieur, ceux-ci incluant sur leur côté de contact (35) des têtes de nettoyage (40) pour le balayage d'une surface de tamis (70) du blutoir oscillant,
    caractérisé en ce que :
    - chacun des bras (30) est en forme de losange,
    - les bras (30) en forme de losange comprennent à leurs extrémités externes des bords extérieurs (32) en forme de flèche, et
    - les têtes de nettoyage (40) sont disposées en forme de flèche le long des bords extérieurs (32).
  2. Nettoyeur de tamis selon la revendication 1,
    caractérisé en ce qu'au moins un évidement (44) est prévu le long des bras (30).
  3. Nettoyeur de tamis selon une des revendications 1 et 2,
    caractérisé en ce que les têtes de nettoyage (40) sont constituées sous forme de brosses ou de picots.
  4. Nettoyeur de tamis selon une des revendications 1 à 3,
    caractérisé en ce que les bras (30) comprennent à la pointe des bords extérieurs (32) un élément en saillie (46) orienté du côté de contact (35).
  5. Nettoyeur de tamis selon une des revendications 1 à 4,
    caractérisé en ce qu'à l'extrémité d'au moins un bras (30), sur un côté de support (25) du nettoyeur de tamis opposé au côté de contact (35), il est prévu une came de nettoyage (5), qui fait saillie vers l'extérieur et dont l'extrémité est de forme arrondie.
  6. Nettoyeur de tamis selon la revendication 5,
    caractérisé en ce qu'à l'extrémité de la pointe d'au moins un bras (30), sur le côté de support (25), il est prévu un élément en saillie (48), qui a la même hauteur que la came de nettoyage (5).
  7. Nettoyeur de tamis selon une des revendications 1 à 6,
    caractérisé en ce qu'il est prévu entre les bras (30) un espace (38), qui comporte, en vue de dessus du côté de contact (35), une forme sensiblement triangulaire.
  8. Nettoyeur de tamis selon une des revendications 1 à 7,
    caractérisé en ce que les bras (30) sont disposés avec des écarts angulaires réguliers les uns par rapport aux autres.
  9. Nettoyeur de tamis selon une des revendications 1 à 8,
    caractérisé en ce que le nettoyeur de tamis (10) est fabriqué d'une seule pièce en un matériau bleu.
  10. Nettoyeur de tamis selon une des revendications 1 à 9,
    caractérisé en ce que le nettoyeur de tamis (10) est fabriqué en une matière plastique élastique.
EP20100015686 2010-12-15 2010-12-15 Nettoyeur de tamis pour séparateur plan Active EP2465616B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20100015686 EP2465616B1 (fr) 2010-12-15 2010-12-15 Nettoyeur de tamis pour séparateur plan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20100015686 EP2465616B1 (fr) 2010-12-15 2010-12-15 Nettoyeur de tamis pour séparateur plan

Publications (2)

Publication Number Publication Date
EP2465616A1 EP2465616A1 (fr) 2012-06-20
EP2465616B1 true EP2465616B1 (fr) 2013-11-06

Family

ID=44063742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100015686 Active EP2465616B1 (fr) 2010-12-15 2010-12-15 Nettoyeur de tamis pour séparateur plan

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EP (1) EP2465616B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112017007915B1 (pt) 2014-10-24 2021-06-29 Bühler AG Limpadores de peneira sem escova, unidade de peneira e método para aprimorar ou modificar uma caixa de peneira
US10730076B2 (en) 2018-01-19 2020-08-04 Ocrim S.P.A. Interchangeable backwire/combined sieve and dynamic combined cleaner

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE729812C (de) * 1940-03-27 1942-12-23 Reggiane Ohg Italiane S A Freilaufbuerste fuer Plansichter
DE3802799A1 (de) 1988-01-30 1989-08-10 Reinhard Rueter Plansichter
DE59707513D1 (de) 1997-11-29 2002-07-18 Buehler Ag Siebreiniger für Plansichter
DE19825617A1 (de) * 1998-06-08 1999-12-09 Filip Gmbh Muellereibuersten Vorrichtung zur Siebrahmen- und Bodenreinigung eines Siebkastens
US20080017555A1 (en) * 2006-07-23 2008-01-24 Andreas Schumacher Sieve and pan cleaner device

Also Published As

Publication number Publication date
EP2465616A1 (fr) 2012-06-20

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