EP2640521A1 - Rohrmühle - Google Patents
RohrmühleInfo
- Publication number
- EP2640521A1 EP2640521A1 EP11701970.3A EP11701970A EP2640521A1 EP 2640521 A1 EP2640521 A1 EP 2640521A1 EP 11701970 A EP11701970 A EP 11701970A EP 2640521 A1 EP2640521 A1 EP 2640521A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube mill
- concrete
- stator yoke
- electric motor
- rotor
- 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
Links
- 239000004567 concrete Substances 0.000 claims abstract description 62
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 230000000284 resting effect Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000005291 magnetic effect Effects 0.000 description 5
- 239000011150 reinforced concrete Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/24—Driving mechanisms
Definitions
- Tube mill The invention relates to a tube mill.
- tube mills For comminution of regrind, such as ore chunks, tube mills are often used.
- the material to be ground is placed in a tubular, rotatably arranged body and crushed when rotating the body either by its own gravity or by adding grinding elements, such as balls.
- the axis of rotation of the body in this case has a horizontal direction from ⁇ .
- Tube mills are commercially available via gearboxes and matching electric motors.
- gear solutions to drive the body is unprofitable due to wear. Therefore, larger tube mills are driven by a so-called ring motor, which is arranged like an upright ring around the body around and the body directly, ie drives without intervening Ge ⁇ , rotationally. It is located between the rotor and Statorj och the ring motor a few millimeters large air gap. To ensure safe and reliable operation of the ring motor, there must be no mechanical contact between the rotor and Statorj och the ring motor and thus no strong vibrations of the Statorj ochs of the ring motor during operation of the tube mill.
- a tube mill wherein the tube mill has a rotatably arranged about a rotation axis body, wherein millbase for crushing in the Kör- per einbringbar, wherein the tube mill for rotating driving the body has an electric motor, wherein the electric motor having a body rotatably connected to the body arranged de de body rotor and a rotor disposed around the rotor Statorj och, wherein the tube mill at least one half having the circumference of Statorsj ochs rotating concrete element, wherein the Statorj och is so connected to the concrete element that einwir ⁇ kende forces are transmitted to the concrete element on the stator yoke.
- the invention allows, at a arranged around the body of the tube mill, the body of the tube mill driving electric motor during operation of the electric motor de deformations of the Statorj ochs of the electric motor to Reduzie ren. Furthermore, the invention also allows the reduction of static deformation of Statorj ochs.
- the concrete element consists of several segments, because then the concrete element can be assembled in a simple manner at the site of the mill of the segments.
- the segments are for this purpose e.g. connected by screw connections.
- Betonele ment is integrally formed, since then the concrete element is particularly stable and resilient.
- the invention proves, in particular in large tube mills, ie tube mills, whose driving electric motor has an electric power of greater than 5 MW, as before ⁇ geous.
- FIG. 6 shows an enlarged detail of FIG. 5
- FIG. 1 a rear view of a tube mill 1 according to the invention is shown in the form of a schematic perspective view.
- the tube mill 1 has a tubular order an axis of rotation R rotatably arranged body 4, wherein the axis of rotation R has a horizontal orientation ⁇ .
- FIG. 2 a front view of the tube mill 1 according to the invention is shown in the form of a schematic perspective illustration. The same elements are provided in FIG. 2 with the same reference numerals as in FIG. 1.
- ground material for comminution in the body 4 can be introduced via an opening.
- an electric motor 2 which directly, ie without interposed between the electric motor 2 and the body 4 transmission, the body 4 ro ⁇ tatorisch drives and is designed as a ring motor.
- the electric motor 2 has a housing 8 and winding shields 20.
- the electric motor 2 radiator wherein for the sake of clarity, only a radiator 9 is provided in FIG 1 with a reference numeral.
- the tube mill 1 according to the invention on supporting elements 5, on which the body 4 is rotatably mounted.
- the electric motor 2 has a stationary arranged stator, which comprises the dormant arranged essential elements of the electric motor 2 and a rotor which comprises the rotating about the rotation axis R elements of the electric motor 2, on.
- the essential elements of the stator are fastened directly or indirectly to a Betonele ⁇ ment.
- FIG 3 the concrete element 3 and the stator 7 of the electric ⁇ motor 2 is shown in the form of a schematic perspective view. The same elements are provided in FIG 3 with the same reference numerals as in FIG 1 and FIG 2.
- FIG 4 the concrete element 3 and the stator 7 of the electric ⁇ motor 2 without housing 8, cooler 9 and winding shields 20 in the form of a schematic perspective view shown.
- the stator 7 of the electric motor 2 has as essential Royal element an annular stator yoke 10.
- the Sta ⁇ Torjoch 10 is made in the context of the embodiment of Statorj ochsegmenten, wherein the sake of clarity only two Statorj ochsegmente are provided with a reference numeral 10a and 10b.
- the stator yoke segments are joined together to form the annular stator yoke 10.
- the circumference of the stator yoke 10 is provided in FIG 4 with the problemsszei ⁇ chen U.
- the stator yoke 10 may be solid or, for example, consist of sheets arranged one behind the other and electrically insulated from one another.
- the stator yoke 10 is made of a magnetically conductive material such as a ferromagnetic material (eg, iron).
- Statorj och 10 has recesses in which a stator winding is arranged, which is not shown in FIG 4 for the sake of clarity.
- the stator winding generates a magnetic field which drives the rotor of the electric motor 2 and thus the on the rotor of the electric motor be ⁇ solidified body 4 in rotation during operation of the electric motor. 2
- forces are transmitted from the body to the rotor of the electric motor and from the rotor via the magnetic field acting between the rotor and the stator yoke to the stator of the electric motor, which excite the stator to oscillate
- the tube mill 1 comprises at least half of the circumference U of the Statorsj ochs 10 encircling Betonele ⁇ ment 3, wherein the stator yoke 10 is connected to the Betonele ⁇ ment 3, that acting on the Statorj 10 och forces be transferred to the concrete element 3. As a result, a good reduction in the vibrations of the Statorj och is achieved.
- a very good reduction of the vibrations is achieved if the concrete element 3 is arranged circumferentially around at least three quarters of the circumference of the stator yoke.
- An optimal reduction of the vibrations is achieved when as shown for example in training guide, the concrete element 3 is disposed circumferentially 10 around the entire circumference ge ⁇ U of Statorj ox.
- the extending in radial direction RR distance AS from the concrete ⁇ element 3 to the rotation axis R is preferably constant, that is, the element extending transversely to the receiving of the stator yoke 10 by the Betonele- recess preferably has a part ⁇ circular or circular shape.
- the concrete element 3 is made of concrete or reinforced concrete.
- the concrete element is constructed of reinforced concrete 3, ie it has an inside the Be ⁇ sound element disposed on steel reinforcement.
- the concrete element 3 absorbs the forces transmitted to the stator yoke 10 during operation of the tube mill by the rotor of the electric motor and discharges them into the ground.
- OF INVENTION ⁇ dung according to the Statorj och 10 encircling concrete element 3 a very rigid, preferably a large mass is realized aufwei ⁇ send supporting structure, the large forces Transd ⁇ men may, without being caused to oscillate.
- the concrete element may, as in the embodiment, be integrally formed, or else, as indicated by dashed lines in Figure 4, be composed of several segments, the segments may be bolted together, for example.
- FIG 4 there are the segment boundaries of the segments 3a, 3b, 3c and 3d, 3e, from which the concrete element may be are ⁇ 3, for example, indicated by dashed lines.
- the electric motor 2 3 extending channels are arranged in the concrete element 3 through the concrete element. In the channels fans are arranged.
- FIG 4 the sake of clarity, only a channel 11 and a fan 12 is provided with a reference numeral.
- FIG. 5 a section through the tube mill 1 according to the invention is shown in a form of a schematic representation.
- the same elements are provided with the same reference numerals as in ⁇ Figures 1 to 4.
- the body 4 has a circumferential surface 4c and two funnel-shaped closure members 4a and 4b.
- Grist 13 for example, through the opening 6, can be introduced.
- FIG 6 the area marked in FIG 5 A is shown with ver ⁇ enlarges.
- the same elements are provided with the same reference numerals here noted that for reasons of clarity, which is arranged in the interior of the concrete element 3 steel reinforcement of the concrete element 3 (reinforced concrete) is not Darge ⁇ in Figures 5 and 6 as shown in Figures 1 to 5. It would be is is.
- the housing 8 of the electric motor 2 is likewise fastened to the concrete element 3 in the context of the exemplary embodiment. It should be noted here that in FIG. 6 the fan 12 and the radiator 9 are represented symbolically very highly schematically. The external connections of the radiator 9 are connected to cooling lines ⁇ , via which a cooling liquid is pumped through the radiator 9.
- the Statorj och 10 is such verbun with the concrete element 3 ⁇ that acting on the stator yoke 10 forces are transmitted to the concrete element.
- the forces are transmitted during operation of the tube mill 1 from rotor 18 via the intermediate rotor 18 and stator yoke 10 acting magnetic field to the Sta ⁇ Torjoch 10 and transmitted from the stator yoke 10 on the concrete element.
- the stator yoke 10 is mechanically or directly connected to the concrete element 3 for this purpose.
- the stator yoke 10 is fixed directly to the concrete element with ⁇ means of, for example, screw connections. If the stator yoke 10 is indirectly connected to the concrete element 3, then the stator yoke 10 is connected to the concrete element 3 via at least one fastening element.
- the fastening element can consist, for example, in the form of a steel ring arranged between the stator yoke and the concrete element, the stator yoke being fastened to the steel ring by means of screw connections, for example, and the steel ring being fastened to the concrete element, for example by means of screw connections.
- the Statorj och 10 via fasteners 14a, 14b, 14c be ⁇ solidifies on the concrete element.
- the Fixed To ⁇ restriction member 14a is formed as a by the stator yoke 10 um secured- the steel ring is secured to the concrete element.
- the Statorj och 10 has recesses in which a stator winding 21 is arranged, wherein in FIG 6, only the side borrowed from the stator yoke 10 winding heads of
- the electric motor 2 has a rotor 18, which comprises the elements of the electric motor 2 rotating about the rotation axis R.
- the rotor 18 has, as an essential element, a rotor yoke 16, which consists of a magnetically conductive material, such as a ferromagnetic material, and can be constructed solid or arranged one behind the other against each other electrically insulated sheets.
- the rotor yoke 16 has recesses in which a rotor winding 17 is arranged, wherein in FIG 6, only the laterally protruding from the rotor yoke 16 winding heads of the rotor winding 17 can be seen.
- a current flows through the rotor winding 17, so that magnetic poles are formed on the rotor yoke 17.
- the rotor yoke 17 is connected via fasteners 19a, 19b, 19c to the body 4 of the tube mill.
- the rotor yoke 16 of the rotor 18 is arranged around the circumference of the body 4. Between rotor 18 and stator yoke 10, an air gap 15 is arranged.
- the body 4 is rotationally driven by an acting between Ro ⁇ tor 18 and stator 10 magnetic field.
- the rotor 18 is direct, i. without intermediate gear, connected to the body 4.
- the electric motor 2 is thus designed as a so-called ring motor.
- the concrete element not without ⁇ dingt, as in the embodiment, is required to have a rectangular outer contour, but can have any desired outer contour.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2011/050950 WO2012100818A1 (de) | 2011-01-25 | 2011-01-25 | Rohrmühle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2640521A1 true EP2640521A1 (de) | 2013-09-25 |
EP2640521B1 EP2640521B1 (de) | 2014-10-29 |
Family
ID=44625070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11701970.3A Active EP2640521B1 (de) | 2011-01-25 | 2011-01-25 | Rohrmühle |
Country Status (9)
Country | Link |
---|---|
US (1) | US9233373B2 (de) |
EP (1) | EP2640521B1 (de) |
CN (1) | CN103338866B (de) |
AU (1) | AU2011357265B2 (de) |
BR (1) | BR112013018372B1 (de) |
CA (1) | CA2825449C (de) |
ES (1) | ES2523775T3 (de) |
MX (1) | MX2013008584A (de) |
WO (1) | WO2012100818A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011088660A1 (de) * | 2011-12-15 | 2013-06-20 | Siemens Aktiengesellschaft | Elektrische Maschine mit Gehäuse- und Statorsegmenten |
FR2994107B1 (fr) * | 2012-08-03 | 2015-06-19 | Ge Energy Power Conversion Technology Ltd | Appareil a tambour rotatif comprenant un tambour rotatif et au moins un moteur electrique d'entrainement du tambour, avec un stator s'etendant en regard d'une partie seulement de la circonference du tambour |
CN104190507A (zh) * | 2014-09-04 | 2014-12-10 | 河南工业大学 | 一种自驱动式锉磨机 |
EP3029806A1 (de) | 2014-12-05 | 2016-06-08 | Siemens Aktiengesellschaft | Bauteil für eine elektrische Maschine |
EP3046225A1 (de) | 2015-01-16 | 2016-07-20 | Siemens Aktiengesellschaft | Elektrische rotierende Maschine mit einseitiger Kühlung und Verfahren zur einseitigen Kühlung |
EP3280038A1 (de) | 2016-08-03 | 2018-02-07 | Siemens Aktiengesellschaft | Antriebsvorrichtung |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1458120A (en) * | 1918-06-08 | 1923-06-05 | Allischalmers Mfg Company | Magnet and dynamo-electric-machine structure |
DE1179629B (de) * | 1962-05-12 | 1964-10-15 | Siemens Ag | Gehaeuse fuer elektrische Maschinen, insbesondere Elektromotoren, aus Zementmoertel oder Beton |
GB1381583A (en) * | 1973-04-06 | 1975-01-22 | Smidth & Co As F L | Rotary drums |
CN2150662Y (zh) | 1993-01-16 | 1993-12-22 | 天津市起重电机厂 | 耐振电动机 |
JPH0723541A (ja) | 1993-06-30 | 1995-01-24 | Toshiba Corp | 回転子巻線端部の支持固定装置 |
DE10114294A1 (de) * | 2001-03-23 | 2002-09-26 | Kloeckner Humboldt Wedag | Antriebseinrichtung für eine Rohrmühle |
GB0113700D0 (en) | 2001-06-06 | 2001-07-25 | Evolving Generation Ltd | Electrical machine and rotor therefor |
US6719227B2 (en) * | 2001-11-16 | 2004-04-13 | General Electric Canada Inc. | Grinding mill and methods for fabricating same |
JP4655595B2 (ja) | 2004-11-17 | 2011-03-23 | パナソニック株式会社 | 電動機 |
DE102006017933B4 (de) | 2006-04-18 | 2008-01-24 | Siemens Ag | Elektrische Maschine mit Magnetlager und Fanglager |
DE102006019873B3 (de) | 2006-04-28 | 2007-10-18 | Siemens Ag | Fanglager für eine elektrische Maschine sowie elektrische Maschine mit zumindest einem derartigen Fanglager |
DE102007005131B3 (de) | 2007-02-01 | 2008-01-31 | Siemens Ag | Ringmotor |
EP2061137A1 (de) | 2007-11-19 | 2009-05-20 | Siemens Aktiengesellschaft | Vorrichtung zur Maschinenanbindung eines Scheibenmotors |
-
2011
- 2011-01-25 AU AU2011357265A patent/AU2011357265B2/en active Active
- 2011-01-25 BR BR112013018372-1A patent/BR112013018372B1/pt active IP Right Grant
- 2011-01-25 ES ES11701970.3T patent/ES2523775T3/es active Active
- 2011-01-25 EP EP11701970.3A patent/EP2640521B1/de active Active
- 2011-01-25 CN CN201180065812.9A patent/CN103338866B/zh not_active Expired - Fee Related
- 2011-01-25 MX MX2013008584A patent/MX2013008584A/es active IP Right Grant
- 2011-01-25 US US13/981,566 patent/US9233373B2/en not_active Expired - Fee Related
- 2011-01-25 WO PCT/EP2011/050950 patent/WO2012100818A1/de active Application Filing
- 2011-01-25 CA CA2825449A patent/CA2825449C/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2012100818A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN103338866B (zh) | 2015-05-13 |
CA2825449A1 (en) | 2012-08-02 |
BR112013018372B1 (pt) | 2020-07-14 |
US9233373B2 (en) | 2016-01-12 |
MX2013008584A (es) | 2013-10-07 |
AU2011357265B2 (en) | 2015-04-02 |
EP2640521B1 (de) | 2014-10-29 |
US20130306773A1 (en) | 2013-11-21 |
AU2011357265A1 (en) | 2013-08-01 |
BR112013018372A2 (pt) | 2016-10-11 |
ES2523775T3 (es) | 2014-12-01 |
WO2012100818A1 (de) | 2012-08-02 |
CN103338866A (zh) | 2013-10-02 |
CA2825449C (en) | 2015-10-06 |
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