WO2009135557A1 - Wälzmühle mit sperrgasbeaufschlagung - Google Patents
Wälzmühle mit sperrgasbeaufschlagung Download PDFInfo
- Publication number
- WO2009135557A1 WO2009135557A1 PCT/EP2009/001720 EP2009001720W WO2009135557A1 WO 2009135557 A1 WO2009135557 A1 WO 2009135557A1 EP 2009001720 W EP2009001720 W EP 2009001720W WO 2009135557 A1 WO2009135557 A1 WO 2009135557A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sealing
- gas
- mill
- chamber
- seal
- Prior art date
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
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/04—Mills with pressed pendularly-mounted rollers, e.g. spring pressed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C2015/002—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs combined with a classifier
Definitions
- the invention is directed to a roller mill, in particular a coal mill, comprising a mill housing with a rotating grinding table with grinding tools resting thereon, in particular grinding rollers, a Mahlgutzu entry, a sifter, a Mahlgutaustrag, at least one of the mill interior in the field of movable mill elements against the outer atmosphere sealing sealing gas seal and a Traggaszu entry, wherein the roller mill is operable in the overpressure mode. Furthermore, the invention is directed to a method for operating such a roller mill.
- Roller mills are used, inter alia, in the field of coal power plants for the grinding of the coal to be burned in the combustion chamber of a steam generator.
- the basic structure of Wälzmühlen or vertical mills consists of a mill housing with arranged therein rotating grinding table, are pressed against the resting grinding tools due to their own weight, but also by applying additional spring force or hydraulic force by means of hydraulic cylinders.
- These grinding tools can be balls or even cylindrical, conical or spherical rollers.
- the abandoned ground material is moved during operation of the mill by the acting fly forces to the edge of the plate. On the way there, the grinding stock is picked up by the grinding tools and rolled over one or more times. It is crushed. The result is a mixture of coarse and finely crushed material.
- the mill or milling process is set that an optimized grinding bed, ie a layer of ground grinding material, forms on the grinding table.
- a carrier gas usually air, is blown into the roller mill.
- the air stream entering here is directed upwards and carries the lighter, ground millbase up to a sifter or separator arranged there within the mill housing and then carries the ground millbase out of the mill housing via a grinding stock discharge.
- the separator or separator is used to separate coarse and fine material.
- the fine material is discharged from the carrier gas through the classifier to the Mahlgutaustrag and then out of the roller mill, while the coarse material falls down again on the grinding table and is ground again.
- Such roller mills on various moving or moving mill elements which must be sealed during operation of the roller mill in overpressure operation against leakage of the mill trumpet out of the mill housing out in the outside atmosphere.
- these mill elements have corresponding seals, wherein this seal can also be done with so-called sealing gas or sealing air, the mill elements are then provided with sealing gas seals sealing against the outside atmosphere.
- sealing Sperrgasabdichtungen can be arranged in the storage area of, for example, a central coal inlet pipe rotating as a central axis classifier, then blocking air or sealing gas introduced into the formed between the outside of the central coal inlet pipe and the inside of the rotating classifier gap and blown into the interior of the mill housing becomes.
- Another sealing barrier gas seal may be formed in the region of the axle guide of the grinding tools. There is ensured by appropriate sealingsperrgasabdichtitch that no internal air or no carrier gas can escape from the mill housing to the outside. Sealing sealing gas seals can also be provided in the region of the tie rods and in the area of the base floor.
- the sealing barrier air or sealing gas seals are not completely sealed, so that in such an approach with a assumed leakage rate of 5% of the barrier gas then about 26 t of CO 2 would escape daily to the mill environment. Since CO 2 has a higher density than air, it would accumulate in the vicinity of the ground standing mills, which is not permitted for reasons of operational safety. As a possible countermeasure, the mills could be housed and these rooms then provided with suction. However, this leads to a significantly increased design and manufacturing complexity with a corresponding increase in price of such Wälzmühlen.
- the invention is therefore based on the object to provide a solution that allows use of recirculated flue gas as a sealing gas without significantly affecting the mill environment.
- At least the at least one sealing gas seal comprises a first sealing chamber and a second sealing chamber, wherein the first sealing chamber with a sealing gas with respect to the prevailing mill inside the mill during mill operation increased sealing gas pressure and the second sealing chamber is acted upon by a sealing gas with respect to the sealing gas of the first sealing chamber lower sealing gas pressure and at the second sealing chamber a discharge line discharging the blocking gas from the second sealing chamber, in particular a line, is arranged.
- Oxyfuel process oxygen is supplied instead of air for combustion, supplied as a sealing gas or barrier gas component and discharged from the second sealing chamber.
- the invention makes it possible to pressurize the first sealing chamber with the CO 2 -containing flue gas.
- the flue gas is expediently supplied with a pressure of the first sealing chamber, which is formed higher than the mill interior pressure.
- the CO 2 -containing sealing gas introduced into the first sealing chamber enters from the first sealing chamber the corresponding ventilation ducts sealingly into the mill interior or the interior of the mill element to be sealed.
- the C ⁇ 2 ⁇ containing barrier gas enters the flow paths leading out to the outside atmosphere from the sealing chamber.
- the second sealing chamber With respect to the first sealing chamber then in the downstream position of these outwardly leading lines or flow paths then the second sealing chamber is arranged, in which the corresponding - it may also be only a flow path - flow paths open.
- the second sealing chamber In the second sealing chamber there is a reduced relative to the first sealing chamber Pressure, in particular prevails in the second sealing chamber and a pressure of less than equal to the external atmospheric pressure is formed.
- a type of suction chamber is formed in the second sealing chamber, which on the one hand sucks the CO 2 -containing sealing gas from the respective first sealing chamber.
- a sealing gas is formed in the second sealing chamber with a reduced CO 2 concentration compared to the first sealing chamber.
- a barrier gas or the sealing gas / air mixture laxative line or discharge is arranged or formed, through which the sealing gas or sealing gas / air mixture selectively removed from the second sealing chamber and optionally collected at the end targeted. This avoids that the sealing gas or the sealing gas / air mixture from the second sealing chamber escapes directly into the outside atmosphere in the mill environment.
- the invention thus consists in its essential aspect in the form of a sealing sealing gas seal in that a first sealing chamber is present, in which CO 2 -containing sealing gas is introduced in overpressure.
- the barrier gas which is forced outward through leakage openings or corresponding flow paths to the outside of the mill, is collected by means of the second sealing chamber.
- a lower pressure prevails in the second sealing chamber compared to the first sealing chamber, so that the "leakage" blocking gas of the first sealing chamber is also drawn in by the second sealing chamber
- the sealing gas or the sealing gas / air mixture is then selectively discharged via a line or discharge.
- the formation of the sealing gas pressure of the second sealing chamber with a pressure less than or equal to the atmospheric pressure is advantageous in that it creates a sucking effect of the second sealing chamber with respect to the surrounding outside air and is sucked by any existing leakage openings or leakage flow paths air, creating a Exiting C ⁇ 2 ⁇ containing barrier gas is prevented by just these leakage openings or -Fromungswege outward.
- a sealing gas seal according to the invention in a roller mill, in which the sealing gas of the first Dichthimmmer and / or the second sealing chamber recycled C ⁇ 2 -containing flue gas, in particular a coal power plant whose combustion chamber according to the oxyfuel process oxygen instead of air Combustion is supplied.
- the sealing gas of the first and / or second sealing chamber may be a CÜ2-containing flue gas with mixed oxygen content, which the invention also provides.
- the invention further provides that the first sealing chamber to the first mill inside the first sealing chamber and the second sealing chamber for from the first sealing chamber leaking sealing gas downstream and with respect to a flow connection to the mill interior is a remote from the mill interior and closest to the outside atmosphere second sealing chamber.
- the roller mill may have one or more sealing gas seals in the region of the base bottom seal and / or in the region of the Buchstabenabdichtung and / or in the Mahlwalzenabdichtung to seal one or more mill elements, wherein according to an advantageous embodiment of the invention, each of these sealing gas seals fed Block gas recycled CO 2 -containing flue gas of a working after oxyfuel coal power plant.
- a plurality of the sealing gas seals but in particular at least one sealing gas seal can be equipped with a first and second sealing chambers.
- the barrier gas seals are provided in the region of the base bottom seal and / or in the region of the Mahlwalzenabdichtung with a first and second sealing chamber, wherein such a sealing gas seal may well be formed in the Switzerlandstangenabdichtung.
- the Traggaszu the mill in line connection with the flue gas line for recycled, preferably purified and dehumidified, CO 2 ⁇ containing flue gas of a coal power plant, the combustion chamber according to the oxyfuel process oxygen instead of air is supplied for combustion is ,
- the mill is formed as a total of both on the carrier gas side and on the barrier gas side with CCh-containing recirculated flue gas operated roller mill.
- the invention provides, these bushings with a housing formed in an enclosure chamber to cover.
- the invention is therefore characterized in an embodiment further characterized in that in the upper housing cover a bushings in the mill interior, in particular bushings for waves, overlapping, an enclosure chamber is formed with connected discharge line housing forming.
- the method is characterized by the fact that the carrier gas supply preferably purified and dehumidified CO 2 -containing flue gas is supplied as Mühlentraggas or Mühlentraggas istteil, the flue gas preferably comes from a coal power plant, the combustion chamber according to the oxyfuel process oxygen instead of air for combustion becomes.
- Fig. 5 shows a schematic representation of a roller mill with static separator.
- the roller mill denoted overall by 1 in FIG. 1, which is a coal mill, has a mill housing designated as a whole by 2, which comprises the actual mill housing 2a and a classifier housing 2b.
- a rotating grinding table 4 is arranged on the bottom side on a grinding bowl carrier 3.
- grinding rollers 5 are grinding tools.
- the grinding rollers are pressed onto the grinding table 4 by means of a pressure frame 6 on which pull rods 7 engage.
- the grinding bowl carrier 3 is arranged on a gear 34, which in turn rests on a foundation 35.
- a separator 8 Centrally in the upper region of the separator housing 2b, a separator 8 is arranged, which is fixed to a central Mahlgutzu entry 9 in the form of a central Mahlguteinlaufrohres around rotating on the outside of the Mahlgutzu exit 9 by means of a hanging storage 10. From the classifier housing 2b lead two Mahlgutausträge 11 addition.
- a carrier gas feed 12 is formed at the level of the grinding bowl carrier 3. In their operating condition the roller mill 1 is fed by the carrier gas feed 12 CO 2 - containing recirculated flue gas as a carrier gas such that the mill 1 is operated in overpressure.
- Mahlgutzu operation 9 coal is applied centrally on the grinding table 4 between the grinding rollers 5 and moved by the rotating grinding table 4 to the outside towards the plate edge.
- the material to be ground gets under the grinding rollers 5 and is crushed.
- the carrier gas stream From the carrier gas stream, the comminuted material to be ground is entrained in the mill housing 2a and carried upwards to the sifter 8. Fine material flows through together with the carrier gas, the rotating classifier 8 and is discharged through the Mahlgutausträge 11 from the classifier housing 2b.
- the roller mill 1 comprises a series of movable mill elements, such as e.g. the grinding table 4 with associated Mahlschüsselani 3 and base base 32, the classifier 8 with associated drive and associated storage, the grinding rollers 5 each with associated storage and associated drive and the tie rods 7 with mutually movable elements.
- movable mill elements such as e.g. the grinding table 4 with associated Mahlschüsselani 3 and base base 32, the classifier 8 with associated drive and associated storage, the grinding rollers 5 each with associated storage and associated drive and the tie rods 7 with mutually movable elements.
- All four seal gas seals 14, 16, 18 and 20 is via a conduit 21 CO 2 -containing, recirculated flue gas supplied as a barrier gas, wherein the sealing gas of the sealing gas seal 14 of the base bottom seal 13 via a branch line A, the third sealing gas seal 17 of the Mahlwalzenabdichtung 18 via a branch line B, the fourth sealing gas seal 19 of the Switzerlandstangenabdichtung 20 via a branch line C and the second seal gas seal 16 of the classifier drive seal 15 is supplied via a branch line D.
- the sealing gas is supplied at a pressure which is higher than the internal mill pressure during the grinding operation, so that the supplied C ⁇ 2 ⁇ containing barrier gas via formed as leakage openings flow paths with low flow velocity enters the mill interior 31 and thus causing the exit of the overpressure in the mill inside , also containing CO 2 -containing carrying gas via these possible leakage flow paths prevented.
- At least one sealing barrier gas seal in the present case the second sealing gas seal 16 in the region of the sifter drive seal 15 and the sealing gas seal 14 in the region of the base bottom seal 13, have two sealing chambers, namely a first sealing chamber 22a, 22b and a second sealing chamber 23a, 23b.
- a discharge in the form of a discharging line 24a, 24b is furthermore arranged in each case.
- Fig. 2 shows schematically a partial section of the hanging storage 10, by means of which a rotating around the milk supply 9 around area 26 of the classifier 8 is driven and stored.
- a first sealing chamber 22b and a second sealing chamber 23b are formed and arranged in the course of the sealing surface 27.
- the first sealing chamber 22b is recirculated CO ⁇ -containing flue gas via a line 28 during operation of the mill with respect to the pressure prevailing in the mill interior 31 overpressure higher pressure. From the first sealing chamber 22, the CO 2 - containing sealing gas enters in the region of the sealing surfaces 27 and flows through flow paths in the direction of arrow 29 into the interior of the mill housing 2.
- the first sealing chamber 22 b is thus the closest to the mill interior 31 sealing chamber. From the first sealing chamber 22b, however, the sealing gas also enters the gap between the sealing surfaces 27 in the opposite direction.
- a second sealing chamber 23b located downstream in relation to the first sealing chamber 22b due to the flow paths for the sealing gas is then arranged and formed so that the sealing gas enters the second sealing chamber 23b from the gap between the sealing surfaces 27b.
- the second sealing chamber 23b constitutes a second sealing chamber 23b located further away from it due to the further flow paths emanating therefrom but to the outside atmosphere.
- a sealing gas pressure is achieved the first sealing chamber 22b set lower blocking gas pressure.
- the sealing gas contained therein is discharged via the discharge line 24b. Since in the second sealing chamber 23b preferably a sealing gas pressure is less than or equal to the outside atmospheric pressure, 30 air is sucked from the outside into the second sealing chamber 23b in the direction of arrow. As a result, it is now prevented that sealing gas can escape from the second sealing chamber 23b to the outside.
- both the sealing gas supplied from the first sealing chamber 22b and the air sucked from the outside are discharged through the discharging line 24b.
- the sealing gas seal 17 shown in Fig. 3 which seals the mill interior 31 in the region of the mill housing bottom 32, effective.
- the local first sealing chamber 22a is supplied with increased pressure CO 2 -containing, recirculated flue gas, which then enters the gap formed between sealing surfaces 27 a and then enters in the direction of the arrow 29 a in the mill interior.
- a second sealing chamber 23a is arranged in which there is a lower sealing gas pressure than in the first sealing chamber 22a and in particular also less than or equal to the atmospheric external pressure.
- the first sealing chamber 22a is located closer to the mill interior 31 with respect to the flow direction of the CC> 2- containing barrier gas than the second sealing chamber 23a.
- the second sealing chamber 23a for downstream of the first sealing chamber 22a sealing gas located downstream and with respect to a flow connection to the mill interior 31 away from the mill interior 31 away, but closer to the outside atmosphere located closer than the first sealing chamber 22a.
- FIG. 4 shows a schematic partial representation of a fourth sealing gas seal 19 in the region of the Buchstangenabdichtung 20, which is in the region of a bellows 36 through which the pull rod 7 is movably guided formed.
- the bellows 36 with sealing chamber regions 37a, 37b formed thereon forms the first sealing chamber 22c of the fourth sealing gas seal 19 of the drawbar seal 20, through which the drawbar 7 or parts of the pull rod 7 is movably guided / are.
- the branch line C opens, through which the first sealing chamber 22c, the C ⁇ 2 ⁇ containing barrier gas is supplied.
- the bellows 36 which seals the sealing of the first sealing chamber 22c and thus the sealing of leakage paths from the mill interior 31 to the outside, for example, over time can become porous and thus can not be described as permanently sealed, is starting from this region of the bellows 36th and the first sealing chamber 22c of the foundation 35 facing part of the pull rod 7 with the anchored on the foundation 35 clamping cylinder 37 by a cylinder-like housing 38 wrapped.
- the interior of the housing 38 forms between the region of the first sealing chamber 22c and the foundation 35, a second sealing chamber 23c.
- a laxative line 24c is arranged with connected suction device, so that from the first sealing chamber 22c into the second sealing chamber 23c leaking CC> 2- containing sealing gas is sucked off and removed.
- the second sealing chamber 23 c is provided with an intake feed with throttle option 39.
- the first sealing chamber 22c again represents the sealing chamber closest to the inside of the mill and the second sealing chamber 23c downstream of the first sealing chamber 22c sealing gas located downstream and in relation to a flow connection to the mill interior 31 from the mill interior 31 and closest to the outside atmosphere second sealing chamber 23c
- the housing 38 is provided in part with a removable wall element 38 a, which exposes an opening in the housing 38 after removal.
- the roller mill 1 is one which is part of a based on the oxyfuel process with CO 2 - separation operated coal power plant, in particular a hard coal power plant, wherein it is in the supplied through the line 21 recirculated or recirculated carbon dioxide flue gas to the of such a power plant is the combustion chamber according to the oxyfuel process oxygen instead of air for combustion is supplied.
- CO 2 -containing original flue gas an additional oxygen content is mixed before use as a barrier gas.
- the purge gas mass flow supplied through the conduit 21 is preferably divided so that the second sealing gas seal 16 in the region of the reformerantriebsabdichtung 15 36-44%, the sealing gas seal 14 in the region of the base bottom seal 13 27-33%, the third sealing gas seal 17 in the Mahlwalzenabdichtung 18th 21.5-26.5% and the fourth sealing gas seal 19 in the region of the Buchstangenabdichtung 20 5.5-6.5% of the Wälzmühle 1 total supplied purge gas mass flow is supplied.
- the combustion chamber according to the oxyfuel process oxygen is fed instead of air for combustion.
- an additional oxygen content can be supplied to the flue gas forming the mill-carrying gas or a flue-gas constituent component before entering the roller mill.
- the roller mill according to the invention and sealing gas seal also in conventional standard power plants or such with the power plant combustion chamber upstream coal gasification and there emerging C ⁇ 2 ⁇ containing flue gas apply.
- the upper housing cover 41 a plurality of shafts 42 with passage through the housing cover 41 through into the mill interior 31 inside, which can also form leakage openings, above the upper housing cover 41 is a closed further housing 43 is formed, which forms a further housing chamber 44.
- a discharge line 45 is arranged with attached suction, which also provides the Einhausungshunt 44 as the second sealing chamber 23c with a suction negative pressure, so that from passages for the waves 42 exiting CO 2 - containing leakage-carrying gas by means of the housing chamber 44th is collected and discharged via line 45.
- separator flaps of the static separator 40 are arranged so that a plurality of shafts 42 may be provided, which are guided by the upper housing cover 41 to the outside.
- a housing 43 adapted to the outer mill contour, that is to say extensions of the outer wall of the mill, comprising walls, has recesses for carrying out the grinding material feed 9 and the grinding stock discharges in its inner area 11 has.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09741776A EP2282836B1 (de) | 2008-05-08 | 2009-03-11 | Wälzmühle mit sperrgasbeaufschlagung |
AU2009243788A AU2009243788B2 (en) | 2008-05-08 | 2009-03-11 | Roller mill with sealing gas impingement |
CN2009801225442A CN102066004A (zh) | 2008-05-08 | 2009-03-11 | 利用密封气体撞击作用的滚筒碾磨机 |
US12/990,966 US20110108643A1 (en) | 2008-05-08 | 2009-03-11 | Roller mill with sealing gas impingement |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008022847A DE102008022847B4 (de) | 2008-05-08 | 2008-05-08 | Wälzmühle mit Sperrgasbeaufschlagung und Verfahren zum Betreiben einer Wälzmühle |
DE200820006372 DE202008006372U1 (de) | 2008-05-08 | 2008-05-08 | Wälzmühle |
DE202008006372.8 | 2008-05-08 | ||
DE102008022847.8 | 2008-05-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009135557A1 true WO2009135557A1 (de) | 2009-11-12 |
Family
ID=40886669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/001720 WO2009135557A1 (de) | 2008-05-08 | 2009-03-11 | Wälzmühle mit sperrgasbeaufschlagung |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110108643A1 (de) |
EP (1) | EP2282836B1 (de) |
CN (1) | CN102066004A (de) |
AU (1) | AU2009243788B2 (de) |
WO (1) | WO2009135557A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120152362A1 (en) * | 2010-12-17 | 2012-06-21 | Fluor Technologies Corporation | Devices and methods for reducing oxygen infiltration |
ITMI20120077A1 (it) * | 2012-01-25 | 2013-07-26 | Franco Societa Agricola Semplice O | Frantoio per olive o simili |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5854902B2 (ja) * | 2012-03-21 | 2016-02-09 | 三菱日立パワーシステムズ株式会社 | 竪型粉砕機 |
CN103949307A (zh) * | 2014-04-24 | 2014-07-30 | 厦门金邦达实业有限责任公司 | 一种碗式中速磨煤机的磨碗衬板 |
CN106492936A (zh) * | 2015-09-06 | 2017-03-15 | 上海上电漕泾发电有限公司 | 一种分段式磨煤机动静环结构 |
JP2019155211A (ja) * | 2018-03-07 | 2019-09-19 | 宇部興産機械株式会社 | 粉砕機及びその監視方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3121937A1 (de) * | 1981-06-03 | 1983-01-05 | Gebr. Pfeiffer Ag, 6750 Kaiserslautern | "muehlensichter" |
DE3244362A1 (de) * | 1982-12-01 | 1984-06-07 | Deutsche Babcock Werke AG, 4200 Oberhausen | Vorrichtung zum abdichten des inneren einer muehle |
DE3443716A1 (de) * | 1984-11-30 | 1986-06-05 | Deutsche Babcock Werke AG, 4200 Oberhausen | Walzenschuesselmuehle |
DE202008006372U1 (de) * | 2008-05-08 | 2008-07-17 | Hitachi Power Europe Gmbh | Wälzmühle |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2490519A (en) * | 1945-04-20 | 1949-12-06 | Charles F Haunz | Apparatus for making lead oxide |
DE3100341A1 (de) * | 1981-01-08 | 1982-07-22 | Loesche GmbH, 4000 Düsseldorf | Walzenmuehle, insbesondere fuer die kohlenvermahlung |
DE3141830A1 (de) * | 1981-10-22 | 1983-05-05 | Deutsche Babcock Werke AG, 4200 Oberhausen | Abdichtung einer muehle |
JP4418975B2 (ja) * | 1999-02-22 | 2010-02-24 | 株式会社奈良機械製作所 | 粒子状材料処理装置 |
-
2009
- 2009-03-11 AU AU2009243788A patent/AU2009243788B2/en not_active Expired - Fee Related
- 2009-03-11 WO PCT/EP2009/001720 patent/WO2009135557A1/de active Application Filing
- 2009-03-11 US US12/990,966 patent/US20110108643A1/en not_active Abandoned
- 2009-03-11 CN CN2009801225442A patent/CN102066004A/zh active Pending
- 2009-03-11 EP EP09741776A patent/EP2282836B1/de not_active Not-in-force
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3121937A1 (de) * | 1981-06-03 | 1983-01-05 | Gebr. Pfeiffer Ag, 6750 Kaiserslautern | "muehlensichter" |
DE3244362A1 (de) * | 1982-12-01 | 1984-06-07 | Deutsche Babcock Werke AG, 4200 Oberhausen | Vorrichtung zum abdichten des inneren einer muehle |
DE3443716A1 (de) * | 1984-11-30 | 1986-06-05 | Deutsche Babcock Werke AG, 4200 Oberhausen | Walzenschuesselmuehle |
DE202008006372U1 (de) * | 2008-05-08 | 2008-07-17 | Hitachi Power Europe Gmbh | Wälzmühle |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120152362A1 (en) * | 2010-12-17 | 2012-06-21 | Fluor Technologies Corporation | Devices and methods for reducing oxygen infiltration |
ITMI20120077A1 (it) * | 2012-01-25 | 2013-07-26 | Franco Societa Agricola Semplice O | Frantoio per olive o simili |
EP2620219A1 (de) * | 2012-01-25 | 2013-07-31 | Fattoria La Vialla Di Gianni, Antonio E Bandino Lo Franco - Societa' Agricola Semplice | Ölmühle zum Zerkleinern/Pressen von Oliven und dergleichen |
Also Published As
Publication number | Publication date |
---|---|
EP2282836B1 (de) | 2012-05-23 |
US20110108643A1 (en) | 2011-05-12 |
CN102066004A (zh) | 2011-05-18 |
AU2009243788A1 (en) | 2009-11-12 |
EP2282836A1 (de) | 2011-02-16 |
AU2009243788B2 (en) | 2012-06-21 |
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