[go: up one dir, main page]

WO2016116189A1 - Broyeur coaxial et unité d'alimentation pour broyeur - Google Patents

Broyeur coaxial et unité d'alimentation pour broyeur Download PDF

Info

Publication number
WO2016116189A1
WO2016116189A1 PCT/EP2015/076828 EP2015076828W WO2016116189A1 WO 2016116189 A1 WO2016116189 A1 WO 2016116189A1 EP 2015076828 W EP2015076828 W EP 2015076828W WO 2016116189 A1 WO2016116189 A1 WO 2016116189A1
Authority
WO
WIPO (PCT)
Prior art keywords
grinder
rotor
mill
interface
stator
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.)
Ceased
Application number
PCT/EP2015/076828
Other languages
German (de)
English (en)
Inventor
Martin Gross
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to CA2970039A priority Critical patent/CA2970039C/fr
Priority to CN201580073911.XA priority patent/CN107206391B/zh
Priority to EP15797297.7A priority patent/EP3247499B1/fr
Publication of WO2016116189A1 publication Critical patent/WO2016116189A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/02—Feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/062—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives with rotor elements extending axially in close radial proximity of a concentrically arranged slotted or perforated ring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/22—Feed or discharge means
    • B02C18/2225—Feed means
    • B02C18/2291—Feed chute arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B02C2023/165—Screen denying egress of oversize material

Definitions

  • the present invention relates to a mill and a feed unit for a mill.
  • the present invention relates to a coaxial mill in which set-up and maintenance operations can be carried out in a particularly simple and time-saving manner.
  • mills are regularly used to eliminate irregularities in the particle size distribution with respect to maximum grain size and / or to structure wet granules.
  • follow-up processes can be optimized or made possible in the first place.
  • these are for dry granules
  • the mills known in the art are grown as ancillary equipment to machinery and apparatus (e.g., manufacturing and / or production technology) for producing granules. Since these machines were designed and built for closed batch operation, they are provided with lockable emptying and filling openings. These apparatuses are designed and operated in such a way that the risks of explosion are minimized and their effects do not pose a risk to the persons in the environment of the machines due to the material properties and the process requirements.
  • US Pat. No. 5,405,094 shows a multi-stage mill in which two sieving units are driven by means of rotationally driven stirring elements for comminuting regrind be used.
  • the stirring elements are driven by a shaft, which is supplied by means of a belt with kinetic energy.
  • No. 5,863,004 shows a mill in which a stirring element arranged on a sieve element is arranged downstream from one
  • Drive unit is moved to press ground material through the sieve unit.
  • mills known in the prior art is common that in case of a required replacement of the screening units or in case of opening of the grinder to remove clogging large parts of the mill must be taken apart, which is time-consuming and therefore expensive. Sometimes an increased set-up time can adversely affect the process reliability of an entire system. Sometimes mills require the
  • Swivel devices to bring the mills into working position, to equip (e.g., screen change, rotor screen tool), to clean and to maintain.
  • the material to be ground (product) flows from above at a flow direction upstream mill drive from above the drive rod, which therefore hinders the product flow on the input side.
  • the product drain down is obstructed by the bevel gear and sieve and rotor can be maintained or changed only from above (after disassembly of the product supply). The same applies to the removal process of blockage of the mill and for cleaning and inspection operations. It is therefore an object of the present invention to alleviate or overcome the aforementioned drawbacks.
  • the object identified above is achieved by a mill and a feed unit for a mill according to the invention.
  • the feed unit is used to supply regrind in the direction of the grinder.
  • a first interface for holding a rotor of a grinder is provided.
  • the rotor forms the moving component of the grinder.
  • a second interface is provided for mounting a stator of the grinder, which in
  • the annular rotary bearing encloses at least part of a free pipe cross-section of the feed pipe so that the material to be ground is conveyed through the "eye" of the rotary bearing and through the feed pipe the geometry of the grinder as well as its attachment and accessibility for set-up and maintenance purposes are made extremely low, so that the downtime of a mill equipped according to the invention can be reduced.
  • the rotary bearing can be configured for example as a rolling bearing or as a sliding bearing.
  • rolling elements between an inner and an outer or an upper and a lower ring of the
  • Such a roller bearing can be configured as a roller bearing or as a ball bearing.
  • the plain bearing can be configured as a roller bearing or as a ball bearing.
  • the sliding friction coefficient can be further reduced by the use of lubricants.
  • the rotary bearing can be arranged, for example, between the first interface for mounting the rotor of the grinder and the feed pipe. In this way, the supply tube can be stored statically and the rotor around the
  • the supply pipe can be designed to rotate automatically and be connected in a rotationally fixed manner to the rotor of the grinding mechanism.
  • the annular rotary bearing between the feed tube and a fixed part of the mill or other fixed structure may be arranged.
  • the material to be ground is transported through the rotary bearing in the grinder.
  • Feed unit according to the invention perform a rotational movement relative to the stator of the grinder, while it is rotatably mounted on the rotor of the grinder.
  • the second interface for mounting the stator of the grinder can be arranged mechanically non-rotatable and coaxial with a stator of an electric machine, via which the grinder (for example, electrically) is driven.
  • the power transmission can be omitted by means of a belt or a chain, whereby energy losses and additional space for power transmission can be saved.
  • the first interface for holding the rotor of the grinder can be connected via a belt drive or a chain with a rotor of an electric machine, whose shaft is arranged substantially parallel to the axis of the grinder.
  • a hydraulic or pneumatic drive mode for the machine can be provided.
  • the actual supply unit can be designed to be particularly compact and volume-optimized, while the electric drive can be arranged at a different position in the production space. In this way, a maintenance or replacement of the electrical machine can be favored.
  • the supply pipe can have a channel which extends in the axial direction, by means of which a fluid can be conducted to outlets arranged in the region of the grinding mechanism.
  • the feed pipe can be designed as a double-walled hollow wall pipe, so that the fluid can be guided between an inner and an outer wall in the grinder.
  • the fluid may include, for example, a gas and / or a liquid. In this way, a cleaning of the inventively equipped mill simplified by no removal of parts of the supply unit is required for rinsing.
  • a fluid can also be introduced between the feed tube and the first interface for holding the rotor of the grinding mechanism, for which purpose a connection can be arranged in a front region of the feed unit with respect to the ground material flow.
  • a fluid supply (a hose or similar) can be connected or a permanently connected hose can be supplied with pressurized fluid. In this way it can be prevented, for example, that grinding stock penetrates between the feed tube and a rotating part of the feed unit and leads to contamination or mechanical problems.
  • Conveyor elements are attached to the rotor / stator system in the feed unit, e.g. To break lumps of raw material or product bridges or to improve the product flow (regrind).
  • fluid e.g., a gas
  • fluid may be employed to assist, for example, product transport when using the mill in pneumatic conveying.
  • a fluid e.g., an inert gas
  • an inert gas may be used to, for example, aerate the mill interior to reduce the oxygen content such that an explosion hazard can be reduced.
  • a fluid e.g., a liquid
  • a fluid may be used to wet the product to be ground before it is fed into the grinder. This can, for example, the flow capabilities and / or the life of the
  • a mill which, for example, as a process mill in the
  • the mill may alternatively or additionally be configured as a wet mill or as a wet and dry mill for processing granules.
  • the mill may be configured to process three phases (solid, liquid and gas). It comprises a rotor of a grinder and a stator of a grinder, which effect a predetermined comminution of material to be ground in cooperation with each other.
  • the rotor is at the first interface and the stator is arranged at the second interface of a supply unit, as have been described in detail in connection with the first-mentioned aspect of the invention. Accordingly, a mill according to the invention by mounting a rotor and a stator of a grinder on a
  • the first interface for holding the rotor of the grinder for example, allow a screw connection between the rotor and another component of the supply unit.
  • a bayonet closure may be provided between the rotor and the additional component of the supply unit.
  • Feed unit circumferential thread be provided in the rotor of the grinder to allow a reversible, yet fixed mounting of the rotor to the feed unit.
  • the rotor and the stator of the grinder can be provided as correspondingly designed sieve elements with openings and / or cutting.
  • its envelope surface can be configured in the shape of a truncated cone. Due to the assembly according to the invention in particular the possibility arises to use the entire vertically oriented to the longitudinal axis of the feed tube screen surface of the grinder also for the comminution, since no drive shaft o.ä. must be provided.
  • Figure 1 is a schematic side view of an embodiment of a mill according to the invention equipped with a Embodiment of a supply unit designed according to the invention; a schematic side view of an alternative
  • FIG. 1 shows an exemplary embodiment of a mill 1 according to the invention, which has a feed unit 2 according to the invention.
  • the supply unit 2 has a first bayonet closure 3 as the first interface for mounting a rotor 4 of a grinder 46.
  • the first bayonet closure 3 is arranged on a rotor 10 of an electric machine 12, which is surrounded by a stator 1 1 of the electric machine.
  • a second bayonet lock 5 is arranged as a second interface for mounting the stator 6 of the grinder 46.
  • Both between the rotor 10 and the stator 1 1 and between the supply pipe 7 and the rotor 10 seals 22, 23 are arranged in the region of the grinder, which prevent penetration of ground material 8 in the spaces above the seals 22, 23.
  • the material to be ground 8 passes via a statically arranged filling pipe 18 into the supply pipe 7 of the supply unit 2 according to the invention.
  • the supply pipe 7 is provided with a flange which has an annular rolling bearing 9b between itself and the filling pipe 18. That way that can
  • a guide 19 is provided for the supply pipe 7, which on the other hand is fixed to the stator 1 1 of the electric machine 12.
  • the guide 19 may slidably abut the supply pipe 7. If an annular rotary bearing 9a is arranged between the supply pipe 7 and the rotor 10 of the electric machine 12, the guide 19 can also be fixedly connected to the supply pipe 7 and the input-side annular rotary bearing 9b can be dispensed with, since now the supply pipe 7 can be designed to be fixed ,
  • the mill 1 according to the invention is provided with an outlet tube 20, which is fixedly connected to the stator 1 1 of the electric machine 12.
  • 21 is explosion proof designed to protect human and material when needed. Via a control unit 24 and a control line 25, the electric machine 12 can be supplied with electrical energy as needed.
  • FIG. 2 shows an alternative embodiment of the mill 1 shown in FIG. 1, so that only the essential differences of the mill 1 shown here will be discussed below.
  • a supply control in the form of an actuator 27 and 27 ' is provided.
  • the actuator 27 is arranged as a pivotable flap similar to a throttle valve in the filler pipe 18 and driven by a control line 26 via a control line 24.
  • the control unit 24 is also (as described above) connected to the electric machine 12 by a control line 25. If the control unit 24 detects that an energy requirement of the electric machine 12 is increasing, it can bring the actuator 27 into the position of the actuator 27 'via the control line 26, thereby reducing the amount of ground material 8 flowing in and reducing the load on the electric machine 12. Accordingly, at a reduced load condition of the electric machine 12, the actuator 27 'can be brought back into the position of the actuator 27 to increase the flow of the material to be ground 8 again and processed per unit time
  • FIG. 3 shows an alternative exemplary embodiment of the mill 1 shown in FIG.
  • an alternative embodiment of the actuator 27 can be seen, which is arranged as a cellular wheel or rotary valve 27 within a circular envelope structure. Turns the cell wheel or the
  • FIG. 4 shows an embodiment of the mill 1 shown in FIGS. 1 to 3 with respect to the grinding stock metering (actuator 27).
  • the actuator 27 is configured as an annular membrane, which hydraulically or pneumatically can cause a tapering of the free cross section of the filler pipe 18. If the fluid pressure behind the membrane 27 is reduced, the membrane assumes the position of the membrane 27 '. If the fluid pressure behind the membrane 27 'subsequently increased again, the position of the membrane 27 results again
  • Control by a control unit 24 (corresponding to Figures 2 and 3) is required.
  • FIG. 5 shows an exemplary embodiment of a mill 1 according to the invention, in which the electric machine 12 is arranged radially offset from the axis of the supply pipe 7.
  • a belt drive 13th used, which rotatably drives the first interface 3 for holding the rotor 4 of the grinder 46.
  • the stator (not shown) of the electric machine 12 is in turn mechanically non-rotatably connected via the second interface 5 for holding the stator 6 of the grinder 46 to the stator 6.
  • FIG. 6 shows an embodiment modified on the basis of the exemplary embodiments of FIGS. 1 to 4, in which the feed tube 7 is referred to as FIG.
  • hollow-walled double tube is configured. In this way results between an inner and an outer wall extending parallel to the flow direction of the material to be grounded 8 fluid channel with annular cross-section.
  • Ports 17 are provided for introducing fluid into the fluid passage 14 and into the space between the rotor 10 of the electric machine 12 and the outer wall of the supply pipe 7. In the latter
  • FIG. 7 shows an enlarged view of the region A marked in FIG. 6, in which the first and second interfaces 3, 5 are provided for holding the grinder 46 in the form of screw connections.
  • two outlets 16 are provided for fluid 15, by means of which the grinder 46 can be rinsed.
  • the path of the fluid 15 flowing between the supply tube 7 and the rotor 10 of the electric machine 12 along the seal 22 is illustrated by an arrow.
  • the present invention enables a particularly compact design and thereby savings in terms of height and required mechanical interfaces. This can be a significant cost reduction of the structure, the parts and the maintenance / armor of the mill according to the invention compared to in

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Abstract

L'invention concerne un broyeur (1) et une unité d'alimentation (2) destinée à un broyeur (1). L'unité d'alimentation (2) comprend : une première interface (3) destinée à supporter un rotor (4) d'un outil de broyage (46), une seconde interface (5) destinée à supporter un stator (6) de l'outil de broyage (46), un tube d'alimentation (7) qui est adapté pour amener la matière à broyer (8) dans l'outil de broyage (46) et un palier tournant annulaire (9) qui est disposé au niveau du tube d'alimentation (7) de telle sorte qu'en fonctionnement, la matière à broyer (8) est amenée dans l'outil de broyage (46) par le palier tournant (9).
PCT/EP2015/076828 2015-01-21 2015-11-17 Broyeur coaxial et unité d'alimentation pour broyeur Ceased WO2016116189A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA2970039A CA2970039C (fr) 2015-01-21 2015-11-17 Broyeur coaxial et unite d'alimentation pour broyeur
CN201580073911.XA CN107206391B (zh) 2015-01-21 2015-11-17 同轴碾磨机和用于碾磨机的供给单元
EP15797297.7A EP3247499B1 (fr) 2015-01-21 2015-11-17 Broyeur coaxial et dispositif d'alimentation pour un broyeur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015200924.6 2015-01-21
DE102015200924.6A DE102015200924A1 (de) 2015-01-21 2015-01-21 Koaxialmühle und Zufuhreinheit für eine Mühle

Publications (1)

Publication Number Publication Date
WO2016116189A1 true WO2016116189A1 (fr) 2016-07-28

Family

ID=54601763

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/076828 Ceased WO2016116189A1 (fr) 2015-01-21 2015-11-17 Broyeur coaxial et unité d'alimentation pour broyeur

Country Status (5)

Country Link
EP (1) EP3247499B1 (fr)
CN (1) CN107206391B (fr)
CA (1) CA2970039C (fr)
DE (1) DE102015200924A1 (fr)
WO (1) WO2016116189A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109012850A (zh) * 2018-07-27 2018-12-18 袁泉 一种硅生产加工用破碎装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5405094A (en) 1994-01-31 1995-04-11 Poser; Kimberly Multi-staged size reduction machine
US5863004A (en) 1996-01-19 1999-01-26 Frewitt Maschinenfabrik Ag Granulating machine
WO2004050249A1 (fr) * 2002-11-30 2004-06-17 Hanningfield Process Systems Limited Tamis de reduction de taille

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5884776A (en) * 1997-04-04 1999-03-23 The Babcock & Wilcox Company Dynamic classifier with hollow shaft drive motor
DE102007005250B3 (de) * 2007-02-02 2008-01-17 Maschinenfabrik Gustav Eirich Gmbh & Co. Kg Verfahren zum kontinuierlichen Trockenmahlbetrieb einer Turmreibmühle und Turmreibmühle
CN103949303B (zh) * 2014-05-15 2016-01-20 浙江合建重工科技股份有限公司 一种碾磨机

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5405094A (en) 1994-01-31 1995-04-11 Poser; Kimberly Multi-staged size reduction machine
US5863004A (en) 1996-01-19 1999-01-26 Frewitt Maschinenfabrik Ag Granulating machine
WO2004050249A1 (fr) * 2002-11-30 2004-06-17 Hanningfield Process Systems Limited Tamis de reduction de taille

Also Published As

Publication number Publication date
EP3247499A1 (fr) 2017-11-29
CN107206391A (zh) 2017-09-26
CN107206391B (zh) 2019-11-19
EP3247499B1 (fr) 2018-09-12
CA2970039C (fr) 2023-01-03
DE102015200924A1 (de) 2016-07-21
CA2970039A1 (fr) 2016-07-28

Similar Documents

Publication Publication Date Title
DE2600648C2 (de) Pelletpresse
DE4432200C1 (de) Rührwerksmühle
EP3558503B1 (fr) Installation de production et procédé
EP0700723A1 (fr) Broyeur agitateur
DE602005005487T2 (de) Dispergiervorrichtung
EP4161702B1 (fr) Déchiqueteur à double arbre, à concept de maintenance horizontal
DE2020649B2 (de) Rührwerksmühle zum Dispergieren von Festkörperteilchen in einem flüssigen Trager
DE69410486T2 (de) Rohrmühle zum mahlen von natürlichen und künstlichen rohstoffen, insbesondere für die zementindustrie
EP0098340B1 (fr) Pompe à hélice dont l'arbre est supporté à ses deux extrémités
DE2202814A1 (de) Schneckenfoerderer
DE19508093A1 (de) Fleischwolf
EP2683487B1 (fr) Broyeur à billes agité
EP3247499B1 (fr) Broyeur coaxial et dispositif d'alimentation pour un broyeur
EP2133294A1 (fr) Dispositif de garnissage
DE69935387T2 (de) Vorrichtung zum Mahlen von Getreide
AT517755A1 (de) Vorrichtung und Verfahren zur Verarbeitung von thermoplastischem Kunststoff mit einer verbesserten Zerkleinerungs-/Transportvorrichtung
EP2119649A1 (fr) Dispositif de serrage pour un dispositif de garnissage
EP1606055B1 (fr) Procede pour separer et evacuer des matieres premieres
CH415334A (de) Zerkleinerungsmaschine für Fleisch oder andere zerkleinerungsfähige Nahrungsmittel und Genussmittel
DE102024105029B3 (de) Antrieb für eine mobile Materialverarbeitungsanlage
DE102024105030B3 (de) Antrieb für eine mobile Materialverarbeitungsanlage
DE102024105026B3 (de) Verteilergetriebe mit Umschaltkupplung
DE102022122711B3 (de) Zerkleinerungsmaschine mit einem mehrteiligen Gehäuse
DE202020000396U1 (de) Schildvortriebsmaschine für Tunnelbau
AT515361A1 (de) Walzenmühle insbesondere zur Zerkleinerung von Trockeneispellets

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15797297

Country of ref document: EP

Kind code of ref document: A1

REEP Request for entry into the european phase

Ref document number: 2015797297

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2015797297

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2970039

Country of ref document: CA

NENP Non-entry into the national phase

Ref country code: DE