EP1354066B1 - Unit for the production of icing sugar from crystalline sugar or invert sugar - Google Patents

Unit for the production of icing sugar from crystalline sugar or invert sugar Download PDF

Info

Publication number
EP1354066B1
EP1354066B1 EP01273109A EP01273109A EP1354066B1 EP 1354066 B1 EP1354066 B1 EP 1354066B1 EP 01273109 A EP01273109 A EP 01273109A EP 01273109 A EP01273109 A EP 01273109A EP 1354066 B1 EP1354066 B1 EP 1354066B1
Authority
EP
European Patent Office
Prior art keywords
sugar
mill
storage hopper
air
mixing head
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.)
Expired - Lifetime
Application number
EP01273109A
Other languages
German (de)
French (fr)
Other versions
EP1354066A2 (en
Inventor
Michael Meyer
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.)
Grenzebach BSH GmbH
Original Assignee
Grenzebach BSH GmbH
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 Grenzebach BSH GmbH filed Critical Grenzebach BSH GmbH
Publication of EP1354066A2 publication Critical patent/EP1354066A2/en
Application granted granted Critical
Publication of EP1354066B1 publication Critical patent/EP1354066B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B50/00Sugar products, e.g. powdered, lump or liquid sugar; Working-up of sugar
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C2013/145Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with fast rotating vanes generating vortexes effecting material on material impact

Definitions

  • the invention relates to a plant for the production of powdered sugar according to the Preamble of claim 1.
  • the eddy current mill shown in the brochure corresponds structurally and functionally essentially the mills according to DE-AS 23 53 907 or DE-196 03 627 C2.
  • a detailed description of one developed by the applicant This type of mill can be found in German patent application 100 55 130.0 which is expressly referred to.
  • Such mills have one on the inlet side Opening that allows the inflow of air.
  • EP 0 007 037 a mill can be found a pneumatic opening into the collecting container Delivery line, air in and out and a filter arrangement.
  • the destroyed crystal surface is the first amorphous.
  • the amorphous sugar tends to get into the crystalline state reconvert.
  • the amorphous surface is very hygroscopic and picks up even from relatively dry air, e.g. at a relative humidity of 10%, water on.
  • the absorbed water lowers the activation energy, which leads to the initiation recrystallization is required.
  • the higher the humidity the faster the Recrystallization.
  • the moisture absorbed by the amorphous sugar exceeds the water absorption capacity of crystalline sugar. From the recrystallized Therefore, excess moisture is released. This leads to an increase the moisture content of the air in the spaces between one finely ground sugar is formed.
  • the trapped air can be much wetter than the ambient air inside Storage room. Due to the increased moisture, the surface of the sugar crystals dissolved. This creates bridges between the sugar crystals, which after the Drying out of the sugar hardens, so that the crystals form lumps connect with each other.
  • the invention has for its object a system according to the preamble of Claim 1 to create, in which the finely ground sugar in recrystallized form can be removed and stored and transported without further treatment is.
  • the system according to the invention is by blowing water vapor into the pneumatic conveying line or creates an air humidity directly into the mill, in which the recrystallization time is shortened, so that the re-installation in Collection container takes place and is essentially complete when the maximum fill level is reached.
  • the injection into the delivery line or directly into the Mill has the advantage that it takes place at a point where the fine-grained material is washed particularly intensively by the moist air.
  • the finely ground sugar is recrystallized by compressed air jets are blown in at the bottom, loosened continuously or intermittently. It can the released excess moisture can escape unhindered and the finely ground sugar cooled by the evaporative cooling to room temperature become.
  • the invention uses a mixing head which is in the Mixed technology has proven itself for a long time.
  • a programmed control of the Compressed air supplied enables, in particular a compressed air supply in the form periodic air blasts at specified time intervals.
  • a silo (not shown) is turned into a discharge device, e.g. one Cell wheel lock, taken from sugar, whose grain size is less than about 2 mm is.
  • the sugar is fed in a steady flow through a conveyor, e.g. a Screw 1, fed via a feed box 2 to a mill 3, which is further below in individual is described.
  • An air flow, the fresh air and in the cycle Recirculated air can contain a suction pipe 4 and Silencer 5 sucked into the inlet box 2, accompanies the sugar on the Path through mill 3 and transports the resulting fines through a pneumatic delivery line 6 in a collecting container 7.
  • a nozzle 8 With a nozzle 8, the with a steam generator, not shown, is connected at a short distance behind the mill 3, dry steam is blown into the delivery line 6.
  • the nozzle 8 can also be directed directly into the mill 3, in deviation from FIG. 1.
  • the fine material is partly by gravity, partly by one housed in the cylindrical upper part 9 of the collecting container 7 Filter assembly 10 separated from the air stream.
  • the one freed from the fines Clean air is drawn off by a radial fan 11 and at least partially via expelled a chimney 12 into the atmosphere.
  • a motor driven actuator 13 By means of a motor driven actuator 13, a partial flow of clean air via a branch line 14 are returned to the intake pipe 4.
  • the separated fine material forms a pile in the collecting container 7.
  • a mixing head 15 which is at the bottom Edge of a truncated cone, narrowing downward lower part 16 of the Collecting container 7 is attached, at short intervals of e.g. 20 seconds Compressed air blown in intermittently, as with the pneumatic mentioned above Mixers known per se.
  • the fines With each impact, the fines are loosened and on the Wall of the rotationally symmetrical collecting container 7 like a helix torn up. This creates a rotating dust fountain, which follows the Pressure surge breaks down. Before the fines become dormant again The next pressure surge follows.
  • the required compressed air is supplied to the mixing head 15 via a compressed air line 17 a compressed air reservoir 18 supplied.
  • the air supply is via an actuator 19 controlled, which by a control unit 20 according to a predetermined program is operated.
  • the compressed air reservoir 18 is by a not shown Compressed air line or fed by a compressor.
  • a second, in the drawing, not shown, is provided, which is also in the lower area is equipped with nozzle channels for blowing compressed air.
  • the two collecting tanks can be separated by a pipe willow, not shown can be activated alternately, so that each of the one container from the Mill picks up incoming fines while the other is emptied.
  • the mill 3 is mounted on a machine frame 21. It consists of one Housing 22, a stator 23, and a rotor 24.
  • the housing 22 has one Bottom 25 and a cylindrical jacket 26 with a vertical cylinder axis.
  • the Jacket 26 is provided with a discharge opening 27, which is tangent to the Jacket 26 connects the pneumatic delivery line 6.
  • the stator 23 has the shape of a truncated cone tapering upwards. He sits like a lid on the housing 22 and is height-adjustable by means of screws 28. It is covered by an annular disc 29, which has a filling opening 30 for the grinds and encloses the sucked in air.
  • the inner surface of the stator 23 is lined with a corrugated armor 31.
  • a shaft 33 of the rotor 24 is in a bearing housing 32 fastened to the base 25 stored. It carries a pulley 34 at the lower end and is via a V-belt 35 driven by a motor 36 at high speed, which is next to the mill the machine frame 21 sits. The upper end of the shaft 33 is with the rotor 24 connected.
  • This has a basic body consisting essentially of a Hub 36, a support ring 37 attached thereto, a cover plate 38 through a support cylinder 39 is supported on the support ring 37, a cylinder 40 on the underside of the support ring 37 is fixed, and an annular base plate 41, which is connected to the cylinder 40 and encloses the bearing housing 32.
  • ribs 42 are attached to the underside of the base plate 41 fan blades 43.
  • floor-like two ring-shaped tool carriers 44, 45 are fastened one above the other.
  • intermediate ring 46 which is also connected to the cylinder 40 is.
  • Base plate 41, lower tool carrier 45, intermediate ring 46, upper Tool carrier 44 and cover plate 38 are one above the other at equal intervals arranged.
  • the outer diameters are the frustoconical stator 23 customized.
  • Each tool carrier 44, 45 is provided with a plurality - e.g. thirty to forty-milling tools 47 equipped, both on the bottom and on the Top are arranged like a wreath at equal intervals on the circumference.
  • each Grinding tool 47 has a rectangular one which rests against the tool carrier 44, 45 Base plate 48. On the two approximately radial, short sides is with the Base plate 48 each have a vertical grinding web 49 connected. The grinding webs 49 are rhomboid. The angle a between abutting edges is that Cone angle of the stator 23 adapted.
  • the grinding tools 47 are in pairs Screws 50 immovably attached to the tool carriers 44, 45 so that everyone on the top seated grinding tool 47 on the bottom a grinding tool 47 is arranged exactly opposite.
  • the outer edges of the grinding tools 47 form a narrow gap with the inner surface of the armor 31, the so-called Grinding gap.
  • the width of the grinding gap is 28 using the set screws variable.
  • FIG. 5 shows an annular mixing head 15, the only indicated frustoconical lower part 16 of the collecting container 7 is attached.
  • the Mixing head 15 has an annular pressure chamber 52 which is rectangular in cross section and which via a connecting piece 53 or more evenly over the circumference Distributed such connection piece is connected to the compressed air line 17.
  • the Pressure chamber 52 is enclosed in the manner of a torus by walls, specifically by a bottom ring 54, an outer wall 55, a cover ring 56 and one wall 57 near the axis.
  • nozzle ring 58 Located on an inner zone of the bottom ring 54 a nozzle ring 58. It encloses a circular opening, the one with the opening the bottom ring 54 is congruent. A sits on the nozzle ring 58 Intermediate ring 59, the profile of which is similar to an inverted U.
  • a flange 60 which is welded to the lower edge of the lower part 16, covers both the Cover ring 56 and the intermediate ring 59. Between the flange 60 on the one hand and the cover ring 56 and the intermediate ring 59 on the other hand is one annular seal 61 made of elastic material. The cover ring 56 is not through screws shown connected to the flange 60. The nozzle ring 58 and the Intermediate ring 59 are clamped between the base plate and flange 60.
  • the nozzle ring 58 is uniform with a total of eight Provide holes distributed over the circumference. They run horizontally and extend between the distal and the near-cylindrical cylindrical Envelope surface of the nozzle ring 58.
  • a tube 62 sits in each bore. It is on the outside cylindrical and has an inner surface 63 typical of Laval nozzles a nozzle channel 64, which extends from the inflow opening 65 in the direction of the Mouth 66 initially narrowed like a trumpet and conical behind a constriction extended.
  • the axis 67 of a nozzle channel 64 closes with an associated one radial line 68 an acute angle ⁇ .
  • the direction of the nozzle channels 64 has hence both a radial and a tangential component.
  • the tangential Component is the same size and in relation to all nozzle channels 64 Axis of the mixing head 15 the same direction. Different from that illustrated embodiment, in which the nozzle channels 64 horizontally are arranged, they can also have an upward component.
  • an outlet connection 69 is flanged.
  • a cylinder 71 is arranged coaxially on its support arms 70. It sits there a piston 72. This is connected to a closing cone 73. 5 illustrated closed position, the jacket of the closing cone 73 is tight the tapered lower inner edge of the bottom ring 54. By lowering of the closing cone 73, the outlet is released.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Biochemistry (AREA)
  • Organic Chemistry (AREA)
  • Disintegrating Or Milling (AREA)
  • Confectionery (AREA)
  • Seasonings (AREA)
  • Saccharide Compounds (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

During the fine-milling of sugar, the fine material deposited on the surfaces is amorphous and hygroscopic. Excess water which is taken up is released during the subsequent recrystallisation and can cause the formation of clumps. Conventionally, intricate additional measures have been necessary in order to avoid the above. According to the invention, a nozzle (8) for injecting steam is provided in a mill (3), or in a pneumatic supply line (6), connected thereto. The recrystallisation time is reduced by means of the injecting of steam. A pneumatic mixing head (15) is arranged in the frustum-shaped lower section (16) of a collecting chamber (7). Blasts of air are injected into the collecting chamber (7) at short intervals by means of the mixing head (15). The fine-milled sugar collecting there is thus aerated, whilst the recrystallisation continues. The excess water released during the recrystallisation is thus driven off. The icing sugar can be removed in recrystallised form and can be stored and transported without further treatment.

Description

Die Erfindung betrifft eine Anlage zur Herstellung von Puderzucker gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a plant for the production of powdered sugar according to the Preamble of claim 1.

Sie geht von einer Anlage aus, die in dem Prospekt der Anmelderin "Mechanische Verfahrenstechnik-Wirbelstrommühlen" beschrieben ist. Aus dem Prospekt geht auch hervor, daß die Anlage für die Feinvermahlung von Zucker geeignet ist.It is based on a system that is described in the applicant 's prospectus "Mechanical Process engineering eddy current mills "is described in the brochure also shows that the plant is suitable for the fine grinding of sugar.

Die in dem Prospekt dargestellte Wirbelstrommühle entspricht baulich und funktionell im wesentlichen den Mühlen gemäß DE-AS 23 53 907 oder DE-196 03 627 C2. Eine ausführliche Beschreibung einer von der Anmelderin entwickelten Mühle dieser Art findet sich in der Deutschen Patentanmeldung 100 55 130.0, auf die ausdrücklich Bezug genommen wird. Derartige Mühlen haben einlaufseitig eine Öffnung, die den Zustrom von Luft ermöglicht. Durch einen mit Mahlwerkzeugen bestückten Rotor, der ähnlich wie ein Radialventilator wirkt, sowie gegebenenfalls durch ein vor- oder nachgeschaltetes Gebläse wird ein Luftstrom eingesaugt, der das Mahlgut durch die Mühle begleitet und in vielen Fällen -wie auch in dem erwähnten Prospekt dargestellt- im Anschluß an die Mühle den pneumatischen Abtransport des Feingutes bewirkt.The eddy current mill shown in the brochure corresponds structurally and functionally essentially the mills according to DE-AS 23 53 907 or DE-196 03 627 C2. A detailed description of one developed by the applicant This type of mill can be found in German patent application 100 55 130.0 which is expressly referred to. Such mills have one on the inlet side Opening that allows the inflow of air. Through one with grinding tools equipped rotor, which acts similarly to a radial fan, and if necessary an air flow is sucked in by a fan connected upstream or downstream, which accompanies the regrind through the mill and in many cases - as in that Brochure mentioned - after the mill the pneumatic The fine material is transported away.

In EP 0 007 037 findet man eine Mühle mit einer in den Sammelbehälter mündenden pneumatischen Förderleitung, Luft ein- und ausgängen und einer Filteranordnung.In EP 0 007 037 a mill can be found a pneumatic opening into the collecting container Delivery line, air in and out and a filter arrangement.

Bei der Feinvermahlung von Zucker ist die zerstörte Kristalloberfläche zunächst amorph. Der amorphe Zucker hat die Tendenz, sich in den kristallinen Zustand zurückzuverwandeln. Die amorphe Oberfläche ist stark hygroskopisch und nimmt selbst aus relativ trockener Luft, z.B. bei einer relativen Feuchte von 10%, Wasser auf. Das aufgenommene Wasser senkt die Aktivierungsenergie, die zur Einleitung der Rekristallisation erforderlich ist. Je höher die Luftfeuchte, desto schneller die Rekristallisation. Die von dem amorphen Zucker aufgenommene Feuchte übersteigt das Wasseraufnahme-vermögen des kristallinen Zuckers. Aus dem rekristallisierten Zucker wird daher überschüssige Feuchte freigesetzt. Dies führt zu einem Anstieg des Feuchtigkeitsgehaltes der Luft, die in den Zwischenräumen eines aus feinvermahlenen Zucker gebildeten Haufwerks eingeschlossen ist. Die eingeschlossene Luft kann wesentlich feuchter sein als die Umgebungsluft im Lagerraum. Durch die erhöhte Feuchtigkeit wird die Oberfläche der Zuckerkristalle angelöst. Dadurch bilden sich zwischen den Zuckerkristallen Brücken, die nach dem Austrocknen des Zuckers verhärten, so daß sich die Kristalle zu Klumpen miteinander verbinden.When sugar is ground, the destroyed crystal surface is the first amorphous. The amorphous sugar tends to get into the crystalline state reconvert. The amorphous surface is very hygroscopic and picks up even from relatively dry air, e.g. at a relative humidity of 10%, water on. The absorbed water lowers the activation energy, which leads to the initiation recrystallization is required. The higher the humidity, the faster the Recrystallization. The moisture absorbed by the amorphous sugar exceeds the water absorption capacity of crystalline sugar. From the recrystallized Therefore, excess moisture is released. This leads to an increase the moisture content of the air in the spaces between one finely ground sugar is formed. The trapped air can be much wetter than the ambient air inside Storage room. Due to the increased moisture, the surface of the sugar crystals dissolved. This creates bridges between the sugar crystals, which after the Drying out of the sugar hardens, so that the crystals form lumps connect with each other.

Um die Klumpenbildung zu vermeiden, ist man bestrebt, einerseits den Rekristallisationsvorgang zu steuern und andererseits einen möglichst unbehinderten Abtransport des frei werdenden Wassers zu ermöglichen. Nach einer konventionellen Methode wird der feinvermahlene Zucker in luftdurchlässige Säcke gefüllt, die in klimatisierten Räumen gelagert werden. Die relative Luftfeuchte wird darin so eingestellt, daß die Rekristallisation nach etwa 24 bis 48 Stunden abgeschlossen ist. Bei dieser langsamen Rekristallisation wird durch natürlichen Luftaustausch ein übermäßiger Anstieg der Feuchte innerhalb des Haufwerkes vermieden. Durch mehrfaches Umschichten der Säcke wird der Luftaustausch noch verbessert.In order to avoid the formation of clumps, efforts are being made to To control recrystallization process and on the other hand one if possible to allow unhindered removal of the released water. After a conventional method is the finely ground sugar in air-permeable bags filled, which are stored in air-conditioned rooms. The relative humidity will adjusted so that the recrystallization after about 24 to 48 hours is completed. During this slow recrystallization, natural Air exchange is an excessive increase in moisture within the pile avoided. The air exchange becomes even more by shifting the sacks several times improved.

Der Erfindung liegt die Aufgabe zugrunde, eine Anlage gemäß dem Oberbegriff des Anspruchs 1 zu schaffen, bei der der feinvermahlene Zucker in rekristallisierter Form entnommen werden kann und ohne weitere Behandlung lager- und transportfähig ist.The invention has for its object a system according to the preamble of Claim 1 to create, in which the finely ground sugar in recrystallized form can be removed and stored and transported without further treatment is.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.This object is achieved by the characterizing features of claim 1.

Bei der Anlage gemäß der Erfindung wird durch Einblasen von Wasserdampf in die pneumatische Förderleitung oder unmittelbar in die Mühle eine Luftfeuchte erzeugt, bei der die Rekristallisationszeit verkürzt wird, so daß die Rekirstallisiation im Sammelbehälter stattfindet und im wesentlichen abgeschlossen ist, wenn die maximale Füllhöhe erreicht ist. Die Einblasung in die Förderleitung oder direkt in die Mühle hat den Vorteil, daß sie an einer Stelle erfolgt, an der das feinkörnige Gut besonders intensiv von der feuchten Luft umspült wird. Während der Rekristallisation wird der feinvermahlene Zucker durch Druckluftstrahlen, die von unten eingeblasen werden, kontinuierlich oder taktweise aufgelockert. Dabei kann die frei werdende überschüssige Feuchte ungehindert entweichen und der feingemahlene Zucker durch die Verdunstungskälte auf Raumtemperatur abgekühlt werden.In the system according to the invention is by blowing water vapor into the pneumatic conveying line or creates an air humidity directly into the mill, in which the recrystallization time is shortened, so that the re-installation in Collection container takes place and is essentially complete when the maximum fill level is reached. The injection into the delivery line or directly into the Mill has the advantage that it takes place at a point where the fine-grained material is washed particularly intensively by the moist air. During the The finely ground sugar is recrystallized by compressed air jets are blown in at the bottom, loosened continuously or intermittently. It can the released excess moisture can escape unhindered and the finely ground sugar cooled by the evaporative cooling to room temperature become.

Durch das Merkmal des Anspruchs 2 wird die Rückführung eines Teilstroms der Reinluft ermöglicht, die durch den Mahlvorgang eine erhöhte Temperatur und Luftfeuchtigkeit aufweist. Auf diese Weise wird die zur Verdampfung des bei der Rekristallisation frei werdenden Wassers erforderliche Energie reduziert.Due to the feature of claim 2, the return of a partial flow of Clean air enables a higher temperature and through the grinding process Has humidity. In this way, the vaporization of the at The recrystallization of water released reduces the energy required.

Durch das Merkmal des Anspruchs 3 wird in dem Sammelbehälter eine rotierende Bewegung erzeugt. Dadurch werden Strömungstoträume vermieden.Due to the feature of claim 3, a rotating in the collecting container Movement creates. This avoids dead spots.

Gemäß Anspruch 4 greift die Erfindung auf einen Mischkopf zurück, der sich in der Mischtechnik lange bewährt hat.According to claim 4, the invention uses a mixing head which is in the Mixed technology has proven itself for a long time.

Durch das Merkmal des Anspruchs 5 wird eine programmierte Steuerung der zugeführten Druckluft ermöglicht, insbesondere eine Druckluftzufuhr in Form periodischer Luftstöße in vorgegebenen Zeitintervallen.A programmed control of the Compressed air supplied enables, in particular a compressed air supply in the form periodic air blasts at specified time intervals.

Die Merkmale der Ansprüche 2 bis 5 sind an sich bei pneumatischen Mischern bekannt, z.B. durch DE-PS 1 070 905, DE-AS 1 104 801, DE-PS 1 152 877, DE-PS 1 172 934, DE-PS 1 432 030. Eine ausführliche Beschreibung findet sich auch in der Deutschen Patentanmeldung 100 07 718.8, auf die ausdrücklich Bezug genommen wird.The features of claims 2 to 5 are per se in pneumatic mixers known, e.g. by DE-PS 1 070 905, DE-AS 1 104 801, DE-PS 1 152 877, DE-PS 1 172 934, DE-PS 1 432 030. A detailed description can also be found in the German patent application 100 07 718.8, to which express reference is made becomes.

Die Zeichnung dient zur Erläuterung der Erfindung anhand eines vereinfacht dargestellten Ausführungsbeispiels.

  • Figur 1 zeigt schematisch eine Anlage gemäß der Erfindung.
  • Figur 2 zeigt einen Längsschnitt durch eine Mühle, sowie den Antrieb der Mühle (nicht geschnitten).
  • Figur 3 zeigt eine Einzelheit der Mühle im Querschnitt.
  • Figur 4 zeigt eine andere Einzelheit perspektivisch.
  • Figur 5 zeigt einen senkrechten Schnitt durch einen Mischkopf
  • Figur 6 zeigt eine Draufsicht auf eine Einzelheit des Mischkopfes.
  • The drawing serves to explain the invention with reference to an embodiment shown in simplified form.
  • Figure 1 shows schematically a system according to the invention.
  • Figure 2 shows a longitudinal section through a mill and the drive of the mill (not cut).
  • Figure 3 shows a detail of the mill in cross section.
  • Figure 4 shows another detail in perspective.
  • Figure 5 shows a vertical section through a mixing head
  • Figure 6 shows a plan view of a detail of the mixing head.
  • Aus einem nicht dargestellten Silo wird mittels eines Austragorgans, z.B. einer Zellenradschleuse, Zucker entnommen, dessen Korngröße kleiner als etwa 2 mm ist. Der Zucker wird in gleichmäßigem Strom durch ein Förderorgan, z.B. eine Schnecke 1, über einen Einlaufkasten 2 einer Mühle 3 zugeführt, die weiter unten im einzelnen beschrieben wird. Ein Luftstrom, der Frischluft und im Kreislauf zurückgeführte Luft enthalten kann, wird über ein Ansaugrohr 4 und einen Schalldämpfer 5 in den Einlaufkasten 2 eingesaugt, begleitet den Zucker auf dem Weg durch die Mühle 3 und transportiert das anfallende Feingut über eine pneumatische Förderleitung 6 in einen Sammelbehälter 7. Mit einer Düse 8, die mit einem nicht dargestellten Dampferzeuger verbunden ist, wird in kurzem Abstand hinter der Mühle 3 trockener Dampf in die Förderleitung 6 eingeblasen. Die Düse 8 kann auch -abweichend von Figur 1- unmittelbar in die Mühle 3 gerichtet sein.A silo (not shown) is turned into a discharge device, e.g. one Cell wheel lock, taken from sugar, whose grain size is less than about 2 mm is. The sugar is fed in a steady flow through a conveyor, e.g. a Screw 1, fed via a feed box 2 to a mill 3, which is further below in individual is described. An air flow, the fresh air and in the cycle Recirculated air can contain a suction pipe 4 and Silencer 5 sucked into the inlet box 2, accompanies the sugar on the Path through mill 3 and transports the resulting fines through a pneumatic delivery line 6 in a collecting container 7. With a nozzle 8, the with a steam generator, not shown, is connected at a short distance behind the mill 3, dry steam is blown into the delivery line 6. The nozzle 8 can also be directed directly into the mill 3, in deviation from FIG. 1.

    In dem Sammelbehälter 7 wird das Feingut teils durch die Schwerkraft, teils durch eine im zylindrischen Oberteil 9 des Sammelbehälters 7 untergebrachte Filteranordnung 10 aus dem Luftstrom abgeschieden. Die vom Feingut befreite Reinluft wird durch ein Radialgebläse 11 abgesaugt und zumindest teilweise über einen Kamin 12 in die Atmosphäre ausgestoßen. Mittels eines motorisch angetriebenen Stellorgans 13 kann ein Teilstrom der Reinluft über eine Zweigleitung 14 in das Ansaugrohr 4 zurückgeführt werden. In the collecting container 7, the fine material is partly by gravity, partly by one housed in the cylindrical upper part 9 of the collecting container 7 Filter assembly 10 separated from the air stream. The one freed from the fines Clean air is drawn off by a radial fan 11 and at least partially via expelled a chimney 12 into the atmosphere. By means of a motor driven actuator 13, a partial flow of clean air via a branch line 14 are returned to the intake pipe 4.

    Das abgeschiedene Feingut bildet in dem Sammelbehälter 7 ein Haufwerk. Sobald eine gewisse Füllhöhe erreicht ist, wird über einen Mischkopf 15, der am unteren Rand eines kegelstumpfförmigen, sich nach unten verengenden Unterteils 16 des Sammelbehälters 7 befestigt ist, in kurzen Zeitabständen von z.B. 20 Sekunden Druckluft stoßweise eingeblasen, wie bei den eingangs erwähnten pneumatischen Mischern an sich bekannt. Bei jedem Stoß wird das Feingut aufgelockert und an der Wand des rotationssymmetrischen Sammelbehälters 7 schraubenlinienartig nach oben gerissen. Dabei entsteht eine rotierende Staubfontäne, die im Anschluß an den Druckstoß zusammenbricht. Bevor sich das Feingut wieder zu einem ruhenden Haufwerk abgesetzt hat, folgt der nächste Druckstoß.The separated fine material forms a pile in the collecting container 7. As soon as a certain filling level is reached, a mixing head 15, which is at the bottom Edge of a truncated cone, narrowing downward lower part 16 of the Collecting container 7 is attached, at short intervals of e.g. 20 seconds Compressed air blown in intermittently, as with the pneumatic mentioned above Mixers known per se. With each impact, the fines are loosened and on the Wall of the rotationally symmetrical collecting container 7 like a helix torn up. This creates a rotating dust fountain, which follows the Pressure surge breaks down. Before the fines become dormant again The next pressure surge follows.

    Die erforderliche Druckluft wird dem Mischkopf 15 über eine Druckluftleitung 17 aus einem Druckluftspeicher 18 zugeführt. Die Luftzufuhr wird über ein Stellorgan 19 gesteuert, welches durch ein Steuergerät 20 nach einem vorgegebenen Programm betätigt wird. Der Druckluftspeicher 18 wird durch eine nicht dargestellte Druckluftleitung oder durch einen Kompressor gespeist.The required compressed air is supplied to the mixing head 15 via a compressed air line 17 a compressed air reservoir 18 supplied. The air supply is via an actuator 19 controlled, which by a control unit 20 according to a predetermined program is operated. The compressed air reservoir 18 is by a not shown Compressed air line or fed by a compressor.

    Wenn die maximale Füllhöhe des Sammelbehälters 7 erreicht ist, wird die stoßartige, periodische Druckluftzufuhr beendet. Anschließend wird der Sammelbehälter 7 entleert.When the maximum fill level of the collecting container 7 is reached, the intermittent, periodic supply of compressed air ended. Then the Collection container 7 emptied.

    Um einen kontinuierlichen Betrieb zu ermöglichen, ist zweckmäßig ein zweiter, in der Zeichnung nicht dargestellter Sammelbehälter vorgesehen, der ebenfalls im unteren Bereich mit Düsenkanälen zum Einblasen von Druckluft ausgestattet ist. Durch eine nicht dargestellte Rohrweide können die beiden Sammelbehälter abwechselnd aktiviert werden, so daß jeweils der eine Sammelbehälter das aus der Mühle kommende Feingut aufnimmt, während der andere entleert wird.In order to enable continuous operation, a second, in the drawing, not shown, is provided, which is also in the lower area is equipped with nozzle channels for blowing compressed air. The two collecting tanks can be separated by a pipe willow, not shown can be activated alternately, so that each of the one container from the Mill picks up incoming fines while the other is emptied.

    Die Mühle 3 ist auf einem Maschinengestell 21 montiert. Sie besteht aus einem Gehäuse 22, einem Stator 23, und einem Rotor 24. Das Gehäuse 22 hat einen Boden 25 und einen zylindrischen Mantel 26 mit senkrechter Zylinderachse. Der Mantel 26 ist mit einer Austragöffnung 27 versehen, an die sich tangential zu dem Mantel 26 die pneumatische Förderleitung 6 anschließt. The mill 3 is mounted on a machine frame 21. It consists of one Housing 22, a stator 23, and a rotor 24. The housing 22 has one Bottom 25 and a cylindrical jacket 26 with a vertical cylinder axis. The Jacket 26 is provided with a discharge opening 27, which is tangent to the Jacket 26 connects the pneumatic delivery line 6.

    Der Stator 23 hat die Form eines sich nach oben verjüngenden Kegelstumpfes. Er sitzt deckelartig auf dem Gehäuse 22 und ist durch Schrauben 28 höhenverstellbar. Er ist durch eine Ringscheibe 29 abgedeckt, die eine Einfüllöffnung 30 für das zu vermahlende Gut und die eingesaugte Luft umschließt. Die Innenfläche des Stators 23 ist mit einer geriffelten Panzerung 31 ausgekleidet.The stator 23 has the shape of a truncated cone tapering upwards. He sits like a lid on the housing 22 and is height-adjustable by means of screws 28. It is covered by an annular disc 29, which has a filling opening 30 for the grinds and encloses the sucked in air. The inner surface of the stator 23 is lined with a corrugated armor 31.

    In einem am Boden 25 befestigten Lagergehäuse 32 ist eine Welle 33 des Rotors 24 gelagert. Sie trägt am unteren Ende eine Riemenscheibe 34 und ist über Keilriemen 35 durch einen Motor 36 mit hoher Drehzahl antreibbar, der neben der Mühle auf dem Maschinengestell 21 sitzt. Das obere Ende der Welle 33 ist mit dem Rotor 24 verbunden. Dieser hat einen Grundkörper, bestehend im wesentlichen aus einer Nabe 36, einem daran befestigten Tragring 37, einer Abdeckscheibe 38, die durch einen Stützzylinder 39 an dem Tragring 37 abgestützt ist, einen Zylinder 40, der an der Unterseite des Tragringes 37 befestigt ist, und eine ringförmige Bodenplatte 41, die mit dem Zylinder 40 verbunden ist und das Lagergehäuse 32 umschließt. Auf der Abdeckscheibe 38 sind Rippen 42 befestigt, an der Unterseite der Bodenplatte 41 Ventilatorflügel 43. An der Außenseite des Zylinders 40 sind etagenartig übereinander zwei ringförmige Werkzeugträger 44, 45 befestigt. In der Mitte dazwischen sitzt ein Zwischenring 46, der ebenfalls mit dem Zylinder 40 verbunden ist. Bodenplatte 41, unterer Werkzeugträger 45, Zwischenring 46, oberer Werkzeugträger 44 und Abdeckscheibe 38 sind in gleichen Abständen übereinander angeordnet. Die Außendurchmesser sind dem kegelstumpfförmigen Stator 23 angepaßt. Jeder Werkzeugträger 44, 45 ist mit einer Vielzahl -z.B. dreißig bis vierzig- Mahlwerkzeugen 47 bestückt, die sowohl auf der Unterseite als auch auf der Oberseite kranzartig in gleichen Abständen am Umfang angeordnet sind. Jedes Mahlwerkzeug 47 hat eine an dem Werkzeugträger 44, 45 anliegende rechteckige Grundplatte 48. An den beiden annähernd radialen, kurzen Seiten ist mit der Grundplatte 48 je ein senkrechter Mahlsteg 49 verbunden. Die Mahlstege 49 sind rhomboidförmig. Der Winkel a zwischen aneinanderstoßenden Kanten ist dem Konuswinkel des Stators 23 angepaßt. Die Mahlwerkzeuge 47 sind paarweise mit Schrauben 50 unverrückbar an den Werkzeugträgern 44, 45 befestigt, so daß jedem auf der Oberseite sitzenden Mahlwerkzeug 47 auf der Unterseite ein Mahlwerkzeug 47 genau gegenüber angeordnet ist. Die Außenkanten der Mahlwerkzeuge 47 bilden mit der Innenfläche der Panzerung 31 einen engen Spalt, den sogenannten Mahlspalt. Die Breite des Mahlspaltes ist mit Hilfe der Stellschrauben 28 veränderbar.A shaft 33 of the rotor 24 is in a bearing housing 32 fastened to the base 25 stored. It carries a pulley 34 at the lower end and is via a V-belt 35 driven by a motor 36 at high speed, which is next to the mill the machine frame 21 sits. The upper end of the shaft 33 is with the rotor 24 connected. This has a basic body consisting essentially of a Hub 36, a support ring 37 attached thereto, a cover plate 38 through a support cylinder 39 is supported on the support ring 37, a cylinder 40 on the underside of the support ring 37 is fixed, and an annular base plate 41, which is connected to the cylinder 40 and encloses the bearing housing 32. On the cover plate 38, ribs 42 are attached to the underside of the base plate 41 fan blades 43. On the outside of the cylinder 40 are floor-like two ring-shaped tool carriers 44, 45 are fastened one above the other. In the middle in between sits an intermediate ring 46, which is also connected to the cylinder 40 is. Base plate 41, lower tool carrier 45, intermediate ring 46, upper Tool carrier 44 and cover plate 38 are one above the other at equal intervals arranged. The outer diameters are the frustoconical stator 23 customized. Each tool carrier 44, 45 is provided with a plurality - e.g. thirty to forty-milling tools 47 equipped, both on the bottom and on the Top are arranged like a wreath at equal intervals on the circumference. each Grinding tool 47 has a rectangular one which rests against the tool carrier 44, 45 Base plate 48. On the two approximately radial, short sides is with the Base plate 48 each have a vertical grinding web 49 connected. The grinding webs 49 are rhomboid. The angle a between abutting edges is that Cone angle of the stator 23 adapted. The grinding tools 47 are in pairs Screws 50 immovably attached to the tool carriers 44, 45 so that everyone on the top seated grinding tool 47 on the bottom a grinding tool 47 is arranged exactly opposite. The outer edges of the grinding tools 47 form a narrow gap with the inner surface of the armor 31, the so-called Grinding gap. The width of the grinding gap is 28 using the set screws variable.

    Figur 5 zeigt einen ringförmigen Mischkopf 15, der an dem nur angedeuteten kegelstumpfförmigen Unterteil 16 des Sammelbehälters 7 befestigt ist. Der Mischkopf 15 hat eine ringförmige, im Querschnitt rechteckige Druckkammer 52, die über einen Anschlußstutzen 53 oder über mehrere gleichmäßig über den Umfang verteilte derartige Anschlußstutzen mit der Druckluftleitung 17 verbunden ist. Die Druckkammer 52 ist nach Art eines Torus von Wänden umschlossen, und zwar von einem Bodenring 54, einer Außenwand 55, einem Abdeckring 56 und einer achsnahen Wand 57.Figure 5 shows an annular mixing head 15, the only indicated frustoconical lower part 16 of the collecting container 7 is attached. The Mixing head 15 has an annular pressure chamber 52 which is rectangular in cross section and which via a connecting piece 53 or more evenly over the circumference Distributed such connection piece is connected to the compressed air line 17. The Pressure chamber 52 is enclosed in the manner of a torus by walls, specifically by a bottom ring 54, an outer wall 55, a cover ring 56 and one wall 57 near the axis.

    Diese ist schichtartig aufgebaut. Auf einer inneren Zone des Bodenringes 54 liegt ein Düsenring 58 auf. Er umschließt eine kreisrunde Öffnung, die mit der Öffnung des Bodenringes 54 deckungsgleich ist. Auf dem Düsenring 58 sitzt ein Zwischenring 59, dessen Profil einem umgekehrten U ähnlich ist. Ein Flansch 60, der am unteren Rand des Unterteils 16 angeschweißt ist, überdeckt sowohl den Abdeckring 56 als auch den Zwischenring 59. Zwischen dem Flansch 60 einerseits und dem Abdeckring 56 und dem Zwischenring 59 andererseits liegt eine ringförmige Dichtung 61 aus elastischem Material. Der Abdeckring 56 ist durch nicht dargestellte Schrauben mit dem Flansch 60 verbunden. Der Düsenring 58 und der Zwischenring 59 sind zwischen Bodenplatte und Flansch 60 eingespannt.This is built up in layers. Located on an inner zone of the bottom ring 54 a nozzle ring 58. It encloses a circular opening, the one with the opening the bottom ring 54 is congruent. A sits on the nozzle ring 58 Intermediate ring 59, the profile of which is similar to an inverted U. A flange 60, which is welded to the lower edge of the lower part 16, covers both the Cover ring 56 and the intermediate ring 59. Between the flange 60 on the one hand and the cover ring 56 and the intermediate ring 59 on the other hand is one annular seal 61 made of elastic material. The cover ring 56 is not through screws shown connected to the flange 60. The nozzle ring 58 and the Intermediate ring 59 are clamped between the base plate and flange 60.

    Der Düsenring 58 ist -wie aus Figur 6 ersichtlich- mit insgesamt acht gleichmäßig über den Umfang verteilten Bohrungen versehen. Sie verlaufen waagerecht und erstrecken sich zwischen der achsfernen und der achsnahen zylindrischen Hüllfläche des Düsenringes 58. In jeder Bohrung sitzt ein Röhrchen 62. Es ist außen zylindrisch und hat eine für Lavaldüsen typische Innenfläche 63. Diese umschließt einen Düsenkanal 64, der sich von der Einströmöffnung 65 in Richtung auf die Mündung 66 zunächst trompetenartig verengt und hinter einer Engstelle konisch erweitert. Die Achse 67 eines Düsenkanals 64 schließt mit einer zugeordneten radialen Linie 68 einen spitzen Winkel β ein. Die Richtung der Düsenkanäle 64 hat daher sowohl eine radiale als auch eine tangentiale Komponente. Die tangentiale Komponente hat für alle Düsenkanäle 64 die gleiche Größe und in Bezug auf die Achse des Mischkopfes 15 den gleichen Drehsinn. Abweichend von dem dargestellten Ausführungsbeispiel, bei dem die Düsenkanäle 64 waagerecht angeordnet sind, können sie auch eine aufwärts gerichtete Komponente aufweisen.As can be seen from FIG. 6, the nozzle ring 58 is uniform with a total of eight Provide holes distributed over the circumference. They run horizontally and extend between the distal and the near-cylindrical cylindrical Envelope surface of the nozzle ring 58. A tube 62 sits in each bore. It is on the outside cylindrical and has an inner surface 63 typical of Laval nozzles a nozzle channel 64, which extends from the inflow opening 65 in the direction of the Mouth 66 initially narrowed like a trumpet and conical behind a constriction extended. The axis 67 of a nozzle channel 64 closes with an associated one radial line 68 an acute angle β. The direction of the nozzle channels 64 has hence both a radial and a tangential component. The tangential Component is the same size and in relation to all nozzle channels 64 Axis of the mixing head 15 the same direction. Different from that illustrated embodiment, in which the nozzle channels 64 horizontally are arranged, they can also have an upward component.

    An der Unterseite des Bodenringes 54 ist ein Auslaufstutzen 69 angeflanscht. In seinem Inneren ist an Tragarmen 70 koaxial ein Zylinder 71 angeordnet. Darin sitzt ein Kolben 72. Dieser ist mit einem Schließkegel 73 verbunden. In der in Figur 5 veranschaulichten Schließstellung liegt der Mantel des Schließkegels 73 dicht an dem abgeschrägten unteren Innenrand des Bodenringes 54 an. Durch Absenken des Schließkegels 73 wird der Auslauf freigegeben.On the underside of the bottom ring 54, an outlet connection 69 is flanged. In a cylinder 71 is arranged coaxially on its support arms 70. It sits there a piston 72. This is connected to a closing cone 73. 5 illustrated closed position, the jacket of the closing cone 73 is tight the tapered lower inner edge of the bottom ring 54. By lowering of the closing cone 73, the outlet is released.

    Claims (6)

    1. An installation for the production of icing sugar from granular crystallised sugar or invert sugar, comprising
      a mill,
      a rotationally symmetrical storage hopper with a frustoconical, downwardly tapering lower part, the lower edge of which surrounds a closable discharge opening,
      a pneumatic feed line starting from the mill and leading into the storage hopper,
      a separator for the fines, in particular a filtering arrangement, accommodated in the upper part of the storage hopper, and
      a fan for aspirating the clean air, liberated of the fines, from the storage hopper,
      characterised by nozzles (8) for blowing vapour into the pneumatic feed line (6) and/or into the mill (3)
      and by nozzle ducts (64), arranged in the vicinity of the lower edge of the frustoconical lower part (16), for blowing compressed air into the interior of the storage hopper (7).
    2. An installation according to claim 1, characterised by a fresh-air suction pipe (4) opening into a supply tank (2) of the mill (3), and by a branch line (14), for the recirculation of clean air, leading into the suction line (4).
    3. An installation according to claim 1 or 2, characterised in that the nozzle ducts (64) have, at least in the region of their mouth (66), a tangential directional component which has the same direction of rotation in all nozzle ducts (64) in relation to the axis of the storage hopper (7).
    4. An installation according to any one of claims 1 to 3, characterised by a mixing head (15) fixed to the lower edge of the lower part (26), the mixing head (15) comprising
      an annular pressure chamber (52) from which the nozzle ducts (64) extend, and
      a raisable and lowerable closing cone (73) supported by a supporting device (69, 70) mounted on the underside of the mixing head (15).
    5. An installation according to claim 4, characterised in that the pressure chamber (52) is connected by a line (17) to a compressed-air store (18) and in that the line (17) is fitted with an adjusting element (19) actuated by a control device (20) according to a preset program.
    6. An installation according to any one of claims 1 to 5, characterised by a second storage hopper (7) also provided with nozzle ducts (64) for blowing in compressed air.
    EP01273109A 2001-01-12 2001-11-09 Unit for the production of icing sugar from crystalline sugar or invert sugar Expired - Lifetime EP1354066B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE10101464 2001-01-12
    DE10101464A DE10101464C2 (en) 2001-01-12 2001-01-12 Plant for the production of powdered sugar from granulated sugar or inverted sugar
    PCT/EP2001/012956 WO2002055743A2 (en) 2001-01-12 2001-11-09 Unit for the production of icing sugar from crystalline sugar or invert sugar

    Publications (2)

    Publication Number Publication Date
    EP1354066A2 EP1354066A2 (en) 2003-10-22
    EP1354066B1 true EP1354066B1 (en) 2004-11-03

    Family

    ID=7670536

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP01273109A Expired - Lifetime EP1354066B1 (en) 2001-01-12 2001-11-09 Unit for the production of icing sugar from crystalline sugar or invert sugar

    Country Status (6)

    Country Link
    US (1) US20040028802A1 (en)
    EP (1) EP1354066B1 (en)
    AT (1) ATE281533T1 (en)
    CA (1) CA2433756C (en)
    DE (2) DE10101464C2 (en)
    WO (1) WO2002055743A2 (en)

    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US7900860B2 (en) * 2007-04-05 2011-03-08 Lehigh Technologies, Inc. Conical-shaped impact mill
    DE102017011980A1 (en) 2017-12-22 2019-06-27 Hosokawa Alpine Aktiengesellschaft Apparatus for crushing and mixing
    CN114273414B (en) * 2021-12-28 2022-07-12 中科华鲁土壤修复工程有限公司 Movable soil leaching and repairing equipment

    Family Cites Families (12)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE1104801B (en) * 1959-03-13 1961-04-13 Motor Condensator Companie Sch Method and device for mixing powdery, grainy and chip-like mix in a standing pressure vessel with discharge cone
    US3140201A (en) * 1962-01-09 1964-07-07 American Sugar Dry pulverulent sugar products and process for producing same
    US3562144A (en) * 1968-06-24 1971-02-09 Texaco Inc Hydrocracking process
    DE2353907C3 (en) * 1973-10-27 1980-01-31 Krauss-Maffei Ag, 8000 Muenchen Impact mill
    DE2829149A1 (en) * 1978-07-03 1980-01-17 Bennigsen Mackiewicz METHOD AND DEVICE FOR PRODUCING POWDER SUGAR
    DE3345974C2 (en) * 1983-12-20 1994-03-10 Schmidt Ulrich Dr Process for grinding crystalline solids
    DE3839831A1 (en) * 1988-11-25 1990-05-31 Hoechst Ag METHOD AND DEVICE FOR PRODUCT-FRIENDLY GRINDING AND SIMULTANEOUS DRYING OF DAMP CELLULOSE ETHERS
    DE9300910U1 (en) * 1993-01-23 1993-03-11 Gebrueder Bauermeister & Co Verfahrenstechnik Gmbh & Co, 2000 Norderstedt, De
    DE19604617C2 (en) * 1996-02-08 2003-02-13 Henkel Kgaa Handheld device for transferring a film from a carrier film to a substrate
    DE19641781A1 (en) * 1996-10-10 1998-04-16 Clariant Gmbh Method and device for the simultaneous grinding and drying of a ground material containing moist cellulose ether
    DE19962049C2 (en) * 1999-12-22 2003-02-27 Babcock Bsh Gmbh Whirlwind Mill
    DE10007718C1 (en) * 2000-02-19 2001-07-05 Babcock Bsh Gmbh Mixing head for pneumatic mixer has nozzle ring arranged between two annular components in wall of pressure chamber

    Also Published As

    Publication number Publication date
    CA2433756A1 (en) 2002-07-18
    DE10101464A1 (en) 2002-07-25
    US20040028802A1 (en) 2004-02-12
    DE50104443D1 (en) 2004-12-09
    CA2433756C (en) 2006-07-18
    WO2002055743A2 (en) 2002-07-18
    EP1354066A2 (en) 2003-10-22
    DE10101464C2 (en) 2003-03-06
    ATE281533T1 (en) 2004-11-15
    WO2002055743A3 (en) 2002-11-07

    Similar Documents

    Publication Publication Date Title
    DE2159838B1 (en) Device for deburring workpieces
    DE102005040420A1 (en) Abrasion device for e.g. deburring of rubber parts, has centrifugal wheel, storage container and sluicing device connected with one another, where wheel includes protective cover element for preventing entry of heat into drum
    EP0916381A2 (en) Separator of products
    DE2404000C2 (en) Device for processing used foundry sand
    EP1354066B1 (en) Unit for the production of icing sugar from crystalline sugar or invert sugar
    DE3426286C2 (en)
    EP0634960A1 (en) Foundry sand regenerating process and device.
    DE60019971T2 (en) DRYING DEVICE
    DE4000571C1 (en)
    EP0806387B1 (en) Apparatus for applying a mortar layer
    DE1299094B (en) Device for introducing comminuted solid material, in particular moist fine-grained coal, into a pressurized gas stream used to transport the solid material
    DE19726303A1 (en) Powder particle size sorting machine
    EP1434649B1 (en) Method and device for treating a particulate material
    EP0303641B1 (en) Transport ventilator
    DE19757107A1 (en) Product separator for removing solid particles from a gas stream
    AT400410B (en) DEVICE FOR CONTROLLING AN INLET AT A VERTICAL BREAKER
    EP0267975B1 (en) Process for the continuous production of granules from a solid material in a fluidized bed
    AT371374B (en) DEVICE FOR MIXING, GRANULATING OR COATING POWDERS OR GRAINY SUBSTANCES WITH A CAPACITOR FOR SOLVENT SEPARATION AND RECOVERY
    EP1384554B1 (en) Sand blasting device
    DE2161030A1 (en) Used foundry sand cooler - with inbuilt whirler
    EP0345516B1 (en) Centrifuge for separating mixtures of fluids and solid particles
    WO2002074468A1 (en) Method and device for cooling/processing hot bulk materials
    DE3530879A1 (en) Method and apparatus for cleaning the rotor of an open-end rotor spinning machine
    DE3235826A1 (en) Apparatus for deburring shaped parts and for removing paint coatings on individual parts
    EP0335089A2 (en) Method and device for deburring moulded articles, brittle at low temperatures

    Legal Events

    Date Code Title Description
    PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

    Free format text: ORIGINAL CODE: 0009012

    17P Request for examination filed

    Effective date: 20030812

    AK Designated contracting states

    Kind code of ref document: A2

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

    AX Request for extension of the european patent

    Extension state: AL LT LV MK RO SI

    GRAP Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOSNIGR1

    GRAS Grant fee paid

    Free format text: ORIGINAL CODE: EPIDOSNIGR3

    GRAA (expected) grant

    Free format text: ORIGINAL CODE: 0009210

    AK Designated contracting states

    Kind code of ref document: B1

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: IT

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

    Effective date: 20041103

    Ref country code: IE

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20041103

    Ref country code: SE

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20041103

    Ref country code: GB

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20041103

    Ref country code: NL

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20041103

    Ref country code: CY

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20041103

    Ref country code: FR

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20041103

    Ref country code: FI

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20041103

    Ref country code: TR

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20041103

    REG Reference to a national code

    Ref country code: GB

    Ref legal event code: FG4D

    Free format text: NOT ENGLISH

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: AT

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20041109

    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: EP

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: MC

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20041130

    Ref country code: BE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20041130

    REF Corresponds to:

    Ref document number: 50104443

    Country of ref document: DE

    Date of ref document: 20041209

    Kind code of ref document: P

    REG Reference to a national code

    Ref country code: IE

    Ref legal event code: FG4D

    Free format text: GERMAN

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: LU

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20050103

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: GR

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050203

    Ref country code: DK

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050203

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: ES

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050214

    NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
    BERE Be: lapsed

    Owner name: GRENZEBACH BSH G.M.B.H.

    Effective date: 20041130

    GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

    Effective date: 20041103

    REG Reference to a national code

    Ref country code: IE

    Ref legal event code: FD4D

    PLBE No opposition filed within time limit

    Free format text: ORIGINAL CODE: 0009261

    STAA Information on the status of an ep patent application or granted ep patent

    Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

    26N No opposition filed

    Effective date: 20050804

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: LI

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20051130

    Ref country code: CH

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20051130

    EN Fr: translation not filed
    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: PL

    BERE Be: lapsed

    Owner name: *GRENZEBACH BSH G.M.B.H.

    Effective date: 20041130

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: PT

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20050403

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: DE

    Payment date: 20130122

    Year of fee payment: 12

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R119

    Ref document number: 50104443

    Country of ref document: DE

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: DE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20140603

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R079

    Ref document number: 50104443

    Country of ref document: DE

    Free format text: PREVIOUS MAIN CLASS: C13F0003000000

    Ipc: C13B0050000000

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R119

    Ref document number: 50104443

    Country of ref document: DE

    Effective date: 20140603

    Ref country code: DE

    Ref legal event code: R079

    Ref document number: 50104443

    Country of ref document: DE

    Free format text: PREVIOUS MAIN CLASS: C13F0003000000

    Ipc: C13B0050000000

    Effective date: 20141103