EP1354066A2 - 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

Info

Publication number
EP1354066A2
EP1354066A2 EP01273109A EP01273109A EP1354066A2 EP 1354066 A2 EP1354066 A2 EP 1354066A2 EP 01273109 A EP01273109 A EP 01273109A EP 01273109 A EP01273109 A EP 01273109A EP 1354066 A2 EP1354066 A2 EP 1354066A2
Authority
EP
European Patent Office
Prior art keywords
sugar
collecting container
mill
air
line
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.)
Granted
Application number
EP01273109A
Other languages
German (de)
French (fr)
Other versions
EP1354066B1 (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

Classifications

    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B50/00—Sugar products, e.g. powdered, lump or liquid sugar; Working-up of sugar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C2013/145—Disintegrating 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 producing powdered sugar according to the preamble of claim 1.
  • the eddy current mill shown in the brochure corresponds structurally and functionally essentially to the mills according to DE-AS 23 53 907 or DE-196 03 627 C2.
  • a detailed description of a mill of this type developed by the applicant can be found in German patent application 100 55 130.0, to which express reference is made.
  • Such mills have an opening on the inlet side which allows the inflow of air.
  • An air flow is sucked in through a rotor equipped with grinding tools, which acts like a radial fan, and possibly through a fan connected upstream or downstream, which accompanies the regrind through the mill and in many cases - as shown in the brochure mentioned - afterwards pneumatic transport of the fine material to the mill.
  • the destroyed crystal surface is initially amorphous.
  • the amorphous sugar tends to revert to the crystalline state.
  • the amorphous surface is highly hygroscopic and absorbs water even from relatively dry air, for example at a relative humidity of 10%.
  • the water absorbed lowers the activation energy required to initiate recrystallization.
  • the moisture absorbed by the amorphous sugar exceeds the water absorption capacity of the crystalline sugar. Excess moisture is therefore released from the recrystallized sugar. This leads to an increase the moisture content of the air that is trapped in the interstices of a heap formed from finely ground sugar.
  • the trapped air can be much wetter than the ambient air in the storage room.
  • the surface of the sugar crystals is dissolved due to the increased moisture. As a result, bridges form between the sugar crystals, which harden after the sugar has dried out, so that the crystals combine to form lumps.
  • the finely ground sugar is filled into air-permeable bags that are stored in air-conditioned rooms.
  • the relative air humidity is set in such a way that the recrystallization is completed after about 24 to 48 hours.
  • an excessive increase in moisture within the pile is avoided by natural air exchange.
  • the air exchange is further improved by repositioning the sacks several times.
  • the invention has for its object to provide a system according to the preamble of claim 1, in which the finely ground sugar can be removed in recrystallized form and can be stored and transported without further treatment.
  • the blowing 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 particularly intensively washed around by the moist air.
  • the finely ground sugar is recrystallized by compressed air jets, which are blown in from below, continuously or intermittently. The released excess moisture can escape unhindered and the finely ground sugar can be cooled to room temperature by the evaporative cooling.
  • the feature of claim 2 enables the return of a partial stream of clean air, which has an increased temperature and humidity due to the grinding process. In this way, the energy required to evaporate the water released during recrystallization is reduced.
  • the invention uses a mixing head that has long proven itself in mixing technology.
  • the feature of claim 5 enables programmed control of the supplied compressed air, in particular a compressed air supply in the form of periodic air blasts at predetermined time intervals.
  • 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.
  • FIG. 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.
  • a silo is turned into a discharge device, e.g. a cellular wheel sluice, taken sugar, the grain size is less than about 2 mm.
  • 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 described in detail below.
  • An air stream which may contain fresh air and air recirculated, is sucked into the inlet box 2 via an intake pipe 4 and a silencer 5, accompanies the sugar on its way through the mill 3 and transports the fines obtained via a pneumatic delivery line 6 into one Collection container 7.
  • a nozzle 8 which is connected to a steam generator, not shown, dry steam is blown into the delivery line 6 at a short distance behind the mill 3. In contrast to FIG. 1, the nozzle 8 can also be directed directly into the mill 3.
  • the fine material is separated from the air flow partly by gravity, partly by a filter arrangement 10 accommodated in the cylindrical upper part 9 of the collecting container 7.
  • the clean air freed from the fine material is sucked off by a radial fan 11 and at least partially expelled into the atmosphere via a chimney 12.
  • a motor-driven actuator 13 By means of a motor-driven actuator 13, a partial flow of the clean air can be returned to the intake pipe 4 via a branch line 14.
  • the separated fine material forms a pile in the collecting container 7.
  • compressed air is blown in intermittently at short intervals of, for example, 20 seconds, via a mixing head 15, which is attached to the lower edge of a truncated cone-shaped lower part 16 of the collecting container 7, as in the pneumatic mixers mentioned at the beginning known per se.
  • a mixing head 15 which is attached to the lower edge of a truncated cone-shaped lower part 16 of the collecting container 7, as in the pneumatic mixers mentioned at the beginning known per se.
  • the required compressed air is fed to the mixing head 15 via a compressed air line 17 from a compressed air store 18.
  • the air supply is controlled by an actuator 19 which is actuated by a control device 20 according to a predetermined program.
  • the compressed air reservoir 18 is fed by a compressed air line, not shown, or by a compressor.
  • the intermittent, periodic supply of compressed air is ended.
  • the collecting container 7 is then emptied.
  • a second collecting container (not shown in the drawing) is expediently provided, which is also equipped in the lower area with nozzle channels for blowing compressed air.
  • the two collecting containers can be activated alternately by a pipe willow, not shown, so that one collecting container receives the fine material coming from the mill while the other is emptied.
  • the mill 3 is mounted on a machine frame 21. It consists of a housing 22, a stator 23 and a rotor 24.
  • the housing 22 has a bottom 25 and a cylindrical jacket 26 with a vertical cylinder axis.
  • the jacket 26 is provided with a discharge opening 27, to which the pneumatic conveying line 6 connects tangentially to the jacket 26.
  • the stator 23 has the shape of a truncated cone tapering upwards. It 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 encloses a filling opening 30 for the material to be ground and 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 mounted in a bearing housing 32 fastened to the base 25. It carries a pulley 34 at the lower end and can be driven via V-belts 35 by a motor 36 at high speed, which sits next to the mill on the machine frame 21.
  • the upper end of the shaft 33 is connected to the rotor 24.
  • This has a base body consisting essentially of a hub 36, a support ring 37 attached thereto, a cover plate 38 which is supported by a support cylinder 39 on the support ring 37, a cylinder 40 which is attached to the underside of the support ring 37, and an annular bottom plate 41, which is connected to the cylinder 40 and encloses the bearing housing 32.
  • Ribs 42 are fastened on the cover plate 38, and fan blades 43 are fastened on the underside of the base plate 41.
  • Two ring-shaped tool carriers 44, 45 are fastened one above the other in a tier-like manner on the outside of the cylinder 40. In the middle in between sits an intermediate ring 46, which is also connected to the cylinder 40.
  • Base plate 41, lower tool carrier 45, intermediate ring 46, upper tool carrier 44 and cover plate 38 are arranged one above the other at equal intervals.
  • the outer diameters are adapted to the frustoconical stator 23.
  • Each tool carrier 44, 45 is equipped with a multiplicity — for example, thirty to forty — grinding tools 47, which are arranged on the circumference at equal intervals both on the underside and on the top.
  • Each grinding tool 47 has a rectangular base plate 48 resting against the tool carrier 44, 45.
  • a vertical grinding web 49 is connected to the base plate 48 on each of the two approximately radial, short sides.
  • the grinding webs 49 are rhomboid-shaped.
  • the angle ⁇ between abutting edges is adapted to the cone angle of the stator 23.
  • the grinding tools 47 are immovably fastened in pairs to the tool carriers 44, 45 with screws 50, so that each grinding tool 47 sitting on the top has a grinding tool on the bottom 47 is arranged exactly opposite.
  • the outer edges of the grinding tools 47 form a narrow gap, the so-called grinding gap, with the inner surface of the armor 31.
  • the width of the grinding gap can be changed using the set screws 28.
  • FIG. 5 shows an annular mixing head 15 which is attached to the frustum-shaped lower part 16 of the collecting container 7, which is only indicated.
  • the mixing head 15 has an annular pressure chamber 52 with a rectangular cross section, which is connected to the compressed air line 17 via a connecting piece 53 or via a plurality of such connecting pieces evenly distributed over the circumference.
  • 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 a wall 57 close to the axis.
  • a nozzle ring 58 rests on an inner zone of the bottom ring 54. It encloses a circular opening which is congruent with the opening of the bottom ring 54.
  • An intermediate ring 59 sits on the nozzle ring 58, 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, there is an annular seal 61 made of elastic material.
  • the cover ring 56 is connected to the flange 60 by screws, not shown.
  • the nozzle ring 58 and the intermediate ring 59 are clamped between the base plate and flange 60.
  • the nozzle ring 58 is provided with a total of eight bores distributed uniformly over the circumference. They run horizontally and extend between the cylindrical envelope surface of the nozzle ring 58 which is remote from the axis and close to the axis.
  • a tube 62 sits in each bore. It is cylindrical on the outside and has an inner surface 63 which is typical of Laval nozzles. This surrounds a nozzle channel 64 which extends from the inflow opening 65 narrowed towards the mouth 66 at first in a trumpet-like manner and flared behind a constriction.
  • 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 therefore has both a radial and a tangential component.
  • the tangential component has the same size for all nozzle channels 64 and the same direction of rotation with respect to the axis of the mixing head 15.
  • the nozzle channels 64 are arranged horizontally, they can also have an upward-pointing component.
  • an outlet connection 69 is flanged on the underside of the bottom ring 54.
  • a cylinder 71 is arranged coaxially on its support arms 70.
  • a piston 72 sits therein. This is connected to a closing cone 73. In the closed position illustrated in FIG. 5, the jacket of the closing cone 73 lies tightly against the bevelled lower inner edge of the base ring 54. The outlet is released by lowering the closing cone 73.

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)
  • Seasonings (AREA)
  • Confectionery (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

Anlage zur Herstellung von Puderzucker aus Kristallzucker oder invertiertem ZuckerPlant for the production of powdered sugar from granulated sugar or inverted sugar
Die Erfindung betrifft eine Anlage zur Herstellung von Puderzucker gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a plant for producing 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 plant which is described in the applicant's prospectus "Mechanical Process Engineering Eddy Current Mills". The prospectus 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 to the mills according to DE-AS 23 53 907 or DE-196 03 627 C2. A detailed description of a mill of this type developed by the applicant can be found in German patent application 100 55 130.0, to which express reference is made. Such mills have an opening on the inlet side which allows the inflow of air. An air flow is sucked in through a rotor equipped with grinding tools, which acts like a radial fan, and possibly through a fan connected upstream or downstream, which accompanies the regrind through the mill and in many cases - as shown in the brochure mentioned - afterwards pneumatic transport of the fine material to the mill.
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 finely, the destroyed crystal surface is initially amorphous. The amorphous sugar tends to revert to the crystalline state. The amorphous surface is highly hygroscopic and absorbs water even from relatively dry air, for example at a relative humidity of 10%. The water absorbed lowers the activation energy required to initiate recrystallization. The higher the humidity, the faster the recrystallization. The moisture absorbed by the amorphous sugar exceeds the water absorption capacity of the crystalline sugar. Excess moisture is therefore released from the recrystallized sugar. This leads to an increase the moisture content of the air that is trapped in the interstices of a heap formed from finely ground sugar. The trapped air can be much wetter than the ambient air in the storage room. The surface of the sugar crystals is dissolved due to the increased moisture. As a result, bridges form between the sugar crystals, which harden after the sugar has dried out, so that the crystals combine to form lumps.
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 lumps, efforts are being made to control the recrystallization process on the one hand and to allow the water released to be removed as freely as possible on the other hand. According to a conventional method, the finely ground sugar is filled into air-permeable bags that are stored in air-conditioned rooms. The relative air humidity is set in such a way that the recrystallization is completed after about 24 to 48 hours. With this slow recrystallization, an excessive increase in moisture within the pile is avoided by natural air exchange. The air exchange is further improved by repositioning the sacks several times.
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 to provide a system according to the preamble of claim 1, in which the finely ground sugar can be removed in recrystallized form and can be stored and transported without further treatment.
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, by blowing water vapor into the pneumatic delivery line or directly into the mill, an air humidity is generated in which the recrystallization time is shortened, so that the re-installation takes place in the collecting container and is essentially completed when the maximum filling level is reached , The blowing 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 particularly intensively washed around by the moist air. During the The finely ground sugar is recrystallized by compressed air jets, which are blown in from below, continuously or intermittently. The released excess moisture can escape unhindered and the finely ground sugar can be cooled to room temperature by the evaporative cooling.
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.The feature of claim 2 enables the return of a partial stream of clean air, which has an increased temperature and humidity due to the grinding process. In this way, the energy required to evaporate the water released during recrystallization is reduced.
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 movement is generated in the collecting container. This avoids dead spots in the flow.
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 that has long proven itself in mixing technology.
Durch das Merkmal des Anspruchs 5 wird eine programmierte Steuerung der zugeführten Druckluft ermöglicht, insbesondere eine Druckluftzufuhr in Form periodischer Luftstöße in vorgegebenen Zeitintervallen.The feature of claim 5 enables programmed control of the supplied compressed air, in particular a compressed air supply in the form of periodic air blasts at predetermined 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 known per se in pneumatic mixers, 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 German patent application 100 07 718.8, to which express reference is made.
Die Zeichnung dient zur Erläuterung der Erfindung anhand eines vereinfacht dargestellten Ausführungsbeispiels.The drawing serves to explain the invention with reference to an embodiment shown in simplified form.
Figur 1 zeigt schematisch eine Anlage gemäß der Erfindung. Figur 2 zeigt einen Längsschnitt durch eine Mühle, sowie den Antrieb der Mühle (nicht geschnitten).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).
Figur 3 zeigt eine Einzelheit der Mühle im Querschnitt.Figure 3 shows a detail of the mill in cross section.
Figur 4 zeigt eine andere Einzelheit perspektivisch.Figure 4 shows another detail in perspective.
Figur 5 zeigt einen senkrechten Schnitt durch einen MischkopfFigure 5 shows a vertical section through a mixing head
Figur 6 zeigt eine Draufsicht auf eine Einzelheit des Mischkopfes.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. a cellular wheel sluice, taken sugar, the grain size is less than about 2 mm. 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 described in detail below. An air stream, which may contain fresh air and air recirculated, is sucked into the inlet box 2 via an intake pipe 4 and a silencer 5, accompanies the sugar on its way through the mill 3 and transports the fines obtained via a pneumatic delivery line 6 into one Collection container 7. With a nozzle 8, which is connected to a steam generator, not shown, dry steam is blown into the delivery line 6 at a short distance behind the mill 3. In contrast to FIG. 1, the nozzle 8 can also be directed directly into the mill 3.
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. 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 kegelstumpfformigen, 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.In the collecting container 7, the fine material is separated from the air flow partly by gravity, partly by a filter arrangement 10 accommodated in the cylindrical upper part 9 of the collecting container 7. The clean air freed from the fine material is sucked off by a radial fan 11 and at least partially expelled into the atmosphere via a chimney 12. By means of a motor-driven actuator 13, a partial flow of the clean air can be returned to the intake pipe 4 via a branch line 14. The separated fine material forms a pile in the collecting container 7. As soon as a certain filling level is reached, compressed air is blown in intermittently at short intervals of, for example, 20 seconds, via a mixing head 15, which is attached to the lower edge of a truncated cone-shaped lower part 16 of the collecting container 7, as in the pneumatic mixers mentioned at the beginning known per se. With each impact, the fine material is loosened and torn upward on the wall of the rotationally symmetrical collecting container 7. This creates a rotating dust fountain that collapses after the pressure surge. The next pressure surge follows before the fines have settled down to a stationary pile.
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 fed to the mixing head 15 via a compressed air line 17 from a compressed air store 18. The air supply is controlled by an actuator 19 which is actuated by a control device 20 according to a predetermined program. The compressed air reservoir 18 is fed by a compressed air line, not shown, or 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 is ended. The collecting container 7 is then 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 collecting container (not shown in the drawing) is expediently provided, which is also equipped in the lower area with nozzle channels for blowing compressed air. The two collecting containers can be activated alternately by a pipe willow, not shown, so that one collecting container receives the fine material coming from the mill 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. 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 vermählende Gut und die eingesaugte Luft umschließt. Die Innenfläche des Stators 23 ist mit einer geriffelten Panzerung 31 ausgekleidet.The mill 3 is mounted on a machine frame 21. It consists of a housing 22, a stator 23 and a rotor 24. The housing 22 has a bottom 25 and a cylindrical jacket 26 with a vertical cylinder axis. The jacket 26 is provided with a discharge opening 27, to which the pneumatic conveying line 6 connects tangentially to the jacket 26. The stator 23 has the shape of a truncated cone tapering upwards. It 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 encloses a filling opening 30 for the material to be ground and 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 kegelstumpfformigen 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 α 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 mounted in a bearing housing 32 fastened to the base 25. It carries a pulley 34 at the lower end and can be driven via V-belts 35 by a motor 36 at high speed, which sits next to the mill on the machine frame 21. The upper end of the shaft 33 is connected to the rotor 24. This has a base body consisting essentially of a hub 36, a support ring 37 attached thereto, a cover plate 38 which is supported by a support cylinder 39 on the support ring 37, a cylinder 40 which is attached to the underside of the support ring 37, and an annular bottom plate 41, which is connected to the cylinder 40 and encloses the bearing housing 32. Ribs 42 are fastened on the cover plate 38, and fan blades 43 are fastened on the underside of the base plate 41. Two ring-shaped tool carriers 44, 45 are fastened one above the other in a tier-like manner on the outside of the cylinder 40. In the middle in between sits an intermediate ring 46, which is also connected to the cylinder 40. Base plate 41, lower tool carrier 45, intermediate ring 46, upper tool carrier 44 and cover plate 38 are arranged one above the other at equal intervals. The outer diameters are adapted to the frustoconical stator 23. Each tool carrier 44, 45 is equipped with a multiplicity — for example, thirty to forty — grinding tools 47, which are arranged on the circumference at equal intervals both on the underside and on the top. Each grinding tool 47 has a rectangular base plate 48 resting against the tool carrier 44, 45. A vertical grinding web 49 is connected to the base plate 48 on each of the two approximately radial, short sides. The grinding webs 49 are rhomboid-shaped. The angle α between abutting edges is adapted to the cone angle of the stator 23. The grinding tools 47 are immovably fastened in pairs to the tool carriers 44, 45 with screws 50, so that each grinding tool 47 sitting on the top has a grinding tool on the bottom 47 is arranged exactly opposite. The outer edges of the grinding tools 47 form a narrow gap, the so-called grinding gap, with the inner surface of the armor 31. The width of the grinding gap can be changed using the set screws 28.
Figur 5 zeigt einen ringförmigen Mischkopf 15, der an dem nur angedeuteten kegelstumpfformigen 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.FIG. 5 shows an annular mixing head 15 which is attached to the frustum-shaped lower part 16 of the collecting container 7, which is only indicated. The mixing head 15 has an annular pressure chamber 52 with a rectangular cross section, which is connected to the compressed air line 17 via a connecting piece 53 or via a plurality of such connecting pieces evenly distributed over the circumference. 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 a wall 57 close to 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. A nozzle ring 58 rests on an inner zone of the bottom ring 54. It encloses a circular opening which is congruent with the opening of the bottom ring 54. An intermediate ring 59 sits on the nozzle ring 58, 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, there is an annular seal 61 made of elastic material. The cover ring 56 is connected to the flange 60 by screws, not shown. 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 ß 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 provided with a total of eight bores distributed uniformly over the circumference. They run horizontally and extend between the cylindrical envelope surface of the nozzle ring 58 which is remote from the axis and close to the axis. A tube 62 sits in each bore. It is cylindrical on the outside and has an inner surface 63 which is typical of Laval nozzles. This surrounds a nozzle channel 64 which extends from the inflow opening 65 narrowed towards the mouth 66 at first in a trumpet-like manner and flared behind a constriction. 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 therefore has both a radial and a tangential component. The tangential component has the same size for all nozzle channels 64 and the same direction of rotation with respect to the axis of the mixing head 15. In a departure from the exemplary embodiment shown, in which the nozzle channels 64 are arranged horizontally, they can also have an upward-pointing 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. A cylinder 71 is arranged coaxially on its support arms 70. A piston 72 sits therein. This is connected to a closing cone 73. In the closed position illustrated in FIG. 5, the jacket of the closing cone 73 lies tightly against the bevelled lower inner edge of the base ring 54. The outlet is released by lowering the closing cone 73.

Claims

Patentansprüche claims
1. Anlage zur Herstellung von Puderzucker aus körnigem Kristallzucker oder invertiertem Zucker1. Plant for the production of powdered sugar from granular granulated sugar or inverted sugar
mit einer Mühle,with a mill,
mit einem rotationssymmetrischen Sammelbehälter mit kegelstumpfförmigem, sich nach unten verengenden Unterteil, dessen unterer Rand eine absperrbare Auslauföffnung umschließt,with a rotationally symmetrical collecting container with a truncated cone-shaped lower part, the lower edge of which encloses a lockable outlet opening,
mit einer von der Mühle ausgehenden, in den Sammelbehälter mündenden pneumatischen Förderleitung,with a pneumatic conveying line starting from the mill and opening into the collecting container,
mit einem im oberen Teil des Sammelbehälters untergebrachten Abscheider für das Feingut, insbesondere einer Filteranordnung,with a separator for the fine material, in particular a filter arrangement, accommodated in the upper part of the collecting container,
und mit einem Gebläse zum Absaugen der vom Feingut befreiten Reinluft aus dem Sammelbehälterand with a fan for extracting the clean air freed from the fine material from the collecting container
gekennzeichnet durch Düsen (8) zum Einblasen von Dampf in die pneumatische Förderleitung (6) und/oder in die Mühle (3)characterized by nozzles (8) for blowing steam into the pneumatic delivery line (6) and / or into the mill (3)
und durch Düsenkanäle (64), die in der Nähe des unteren Randes des kegelstumpfformigen Unterteils 16 angeordnet sind, zum Einblasen vonand through nozzle channels (64), which are arranged in the vicinity of the lower edge of the frusto-conical lower part 16, for blowing in
Druckluft in das Innere des Sammelbehälters (7).Compressed air into the interior of the collecting container (7).
2. Anlage nach Anspruch 1 , gekennzeichnet durch ein Ansaugrohr (4) für2. Plant according to claim 1, characterized by an intake pipe (4) for
Frischluft, welches in einen Einlaufkasten (2) der Mühle (3) mündet, und durch eine in die Ansaugleitung (4) einmündende Zweigleitung (14) zur Rückführung von Reinluft. Fresh air, which opens into an inlet box (2) of the mill (3), and through a branch line (14) opening into the suction line (4) for returning clean air.
3. Anlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Düsenkanäle (64) zumindest im Bereich ihrer Mündung (66) eine tangentiale Richtungskomponente aufweisen, die bei allen Düsenkanälen (64) in Bezug auf die Achse des Sammelbehälters (7) den gleichen Drehsinn hat.3. Installation according to claim 1 or 2, characterized in that the nozzle channels (64) at least in the region of their mouth (66) have a tangential directional component which is the same in all nozzle channels (64) with respect to the axis of the collecting container (7) Has a sense of rotation.
4. Anlage nach einem der Ansprüche 1 bis 3, gekennzeichnt durch einen am unteren Rand des Unterteils 26 befestigten Mischkopf (15)4. Installation according to one of claims 1 to 3, characterized by a mixing head (15) attached to the lower edge of the lower part 26
mit einer ringförmigen Druckkammer (52), von der die Düsenkanäle (64) ausgehenwith an annular pressure chamber (52) from which the nozzle channels (64) extend
und mit einem heb- und senkbarem Schließkegel (73), der durch eine an der Unterseite des Mischkopfs (15) angebrachte Tragvorrichtung (69, 70) abgestützt ist.and with a lifting and lowering closing cone (73) which is supported by a carrying device (69, 70) attached to the underside of the mixing head (15).
5. Anlage nach Anspruch 4, dadurch gekennzeichnet, daß die Druckkammer (52) über eine Leitung (17) mit einem Druckluftspeicher (18) in Verbindung steht und daß die Leitung (17) mit einem Stellorgan (19) ausgestattet ist, welches durch ein Steuergerät (20) nach einem vorgegebenen Programm betätigt wird.5. Plant according to claim 4, characterized in that the pressure chamber (52) via a line (17) with a compressed air reservoir (18) is in communication and that the line (17) is equipped with an actuator (19), which by a Control device (20) is operated according to a predetermined program.
6. Anlage nach einem der Ansprüche 1 bis 5, gekennzeichnet durch einen zweiten Sammelbehälter (7), der ebenfalls mit Düsenkanälen (64) zum Einblasen von Druckluft ausgestattet ist. 6. System according to one of claims 1 to 5, characterized by a second collecting container (7), which is also equipped with nozzle channels (64) for blowing 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
DE10101464A DE10101464C2 (en) 2001-01-12 2001-01-12 Plant for the production of powdered sugar from granulated sugar or inverted sugar
DE10101464 2001-01-12
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 true EP1354066A2 (en) 2003-10-22
EP1354066B1 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 Gebrüder Bauermeister & Co Verfahrenstechnik GmbH & Co, 2000 Norderstedt Grinding device, especially for sugar
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02055743A2 *

Also Published As

Publication number Publication date
DE50104443D1 (en) 2004-12-09
DE10101464A1 (en) 2002-07-25
ATE281533T1 (en) 2004-11-15
CA2433756C (en) 2006-07-18
CA2433756A1 (en) 2002-07-18
WO2002055743A2 (en) 2002-07-18
US20040028802A1 (en) 2004-02-12
EP1354066B1 (en) 2004-11-03
DE10101464C2 (en) 2003-03-06
WO2002055743A3 (en) 2002-11-07

Similar Documents

Publication Publication Date Title
DE2918762C2 (en) Device for coating or candying of granular material
EP0228633A1 (en) Apparatus for producing and/or treating granules
EP1940552A1 (en) Device for comminuting a heap of particulate material
DE2159838B1 (en) Device for deburring workpieces
DE4212097C2 (en)
DE2926713A1 (en) DEVICE FOR MOISTURIZING SALT GRANULES
DE10101464C2 (en) Plant for the production of powdered sugar from granulated sugar or inverted sugar
DE3426286C2 (en)
DE915408C (en) Process for operating a mill
DE60019971T2 (en) DRYING DEVICE
DE4000571C1 (en)
DE2448092A1 (en) CRUSHER FOR PROCESSING THIN-WALLED SCRAP
EP0806387B1 (en) Apparatus for applying a mortar layer
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
DE19726303A1 (en) Powder particle size sorting machine
EP0267975B1 (en) Process for the continuous production of granules from a solid material in a fluidized bed
AT400410B (en) DEVICE FOR CONTROLLING AN INLET AT A VERTICAL BREAKER
DE10149764B4 (en) Method and device for treating particulate material, in particular for mixing, drying, granulating, pelleting and / or coating the material
DE1288888B (en) Device for grinding lumpy goods
WO1988006240A1 (en) Transport ventilator
AT371374B (en) DEVICE FOR MIXING, GRANULATING OR COATING POWDERS OR GRAINY SUBSTANCES WITH A CAPACITOR FOR SOLVENT SEPARATION AND RECOVERY
DE2419835A1 (en) Refuse comminuter with classifying collector containers - rotary impact arms pass between adjustable staggered breaker teeth
AT216268B (en)
DE29517793U1 (en) Drying system for plastic waste
WO2002074468A1 (en) Method and device for cooling/processing hot bulk materials

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