WO2015193959A1 - 竪型ローラミル - Google Patents
竪型ローラミル Download PDFInfo
- Publication number
- WO2015193959A1 WO2015193959A1 PCT/JP2014/065972 JP2014065972W WO2015193959A1 WO 2015193959 A1 WO2015193959 A1 WO 2015193959A1 JP 2014065972 W JP2014065972 W JP 2014065972W WO 2015193959 A1 WO2015193959 A1 WO 2015193959A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roller mill
- output flange
- vertical roller
- bearing mechanism
- thrust bearing
- Prior art date
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Classifications
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- 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
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- 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
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- 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
- B02C15/007—Mills with rollers pressed against a rotary horizontal disc
Definitions
- the present invention relates to a vertical roller mill that bites and pulverizes an object to be crushed between a rotary table and a pulverizing roller.
- a vertical roller mill that pulverizes a raw material (a material to be crushed) between a plurality of pulverizing rollers and a rotary table is used for manufacturing concrete aggregates and the like.
- Patent Document 1 discloses a vertical roller mill for coping with the increase in size.
- the rotary table and the speed reducer are largely separated in the vertical direction, and the rotary table and the speed reducer are connected by a vertical main shaft. Has been.
- the thrust bearing mechanism for slidably supporting the rotary table from below is configured integrally with the speed reducer.
- Another object of the present invention is to provide a vertical roller mill that can perform maintenance and replacement work of the thrust bearing mechanism without any trouble even when the mill is enlarged.
- a first aspect of the present invention is a vertical roller mill that pulverizes an object to be pulverized between a rotary table and a pulverizing roller, and is disposed below the rotary table.
- a thrust bearing mechanism for slidably supporting a peripheral edge portion of the output flange from below, and a radial bearing mechanism for restricting radial movement of the output flange are provided.
- the radial bearing mechanism includes a movable side bearing member provided on the output flange, a fixed side bearing member provided on a structure on which the thrust bearing mechanism is mounted, And a bearing body provided between the movable bearing member and the fixed bearing member.
- the movable side bearing member includes a cylindrical member provided at the center of the lower surface of the output flange, and the fixed side bearing member has a central opening through which the cylindrical member is inserted. It is characterized by including the annular member formed.
- the fourth aspect of the present invention is characterized in that the bearing body is a sliding bearing.
- a work space is formed between the output flange and the fixed-side bearing member, and a work opening for an operator to enter the work space has the output flange. It is characterized by being formed.
- a sixth aspect of the present invention is characterized in that the turntable has a hollow structure, and the working opening communicates with an internal space of the turntable.
- a table cover is provided radially inward from the annular crushing surface of the rotary table, and a work opening for an operator to enter the internal space of the rotary table is It is formed on the table cover.
- the working opening formed in the output flange and the working opening formed in the table cover are at least partially overlapped when viewed from above and below.
- a ninth aspect of the present invention is characterized by having a door member for sealing the work opening so as to be openable.
- movement of the thrust bearing mechanism during operation is restricted by a pin member that is detachably provided on a structure on which the thrust bearing mechanism is placed.
- the thrust bearing mechanism can be moved inward in the radial direction by being removed from the structure.
- the eleventh aspect of the present invention is characterized in that the upper end of the vertical main shaft is connected to the central portion of the output flange via a coupling mechanism.
- the twelfth aspect of the present invention is characterized by further comprising a height adjusting means for adjusting the height of the thrust bearing mechanism.
- the vertical roller mill having the characteristics of the first aspect of the present invention, even when the mill is enlarged, it is possible to prevent the shaft shake of the rotary table during rotation.
- FIG. 2 is a sectional view taken along line II-II in FIG. Sectional drawing along the III-III line of FIG.
- FIG. 4 is a sectional view taken along line IV-IV in FIG. 3.
- the vertical roller mill 1 includes a rotary table 2 on which a raw material (a material to be crushed) is supplied.
- a raw material a material to be crushed
- six crushing rollers 3 are provided for biting and crushing raw materials with the turntable 2.
- the six crushing rollers 3 are arranged at equiangular intervals (every 60 °) on a virtual circumference centered on the rotation axis of the rotary table 2.
- the grinding roller 3 is pressed onto the rotary table 2 by a roller pressing mechanism 4.
- the roller pressing mechanism 4 includes a first arm 5 having a crushing roller 3 provided at a distal end portion thereof, and a second arm 6 having a distal end portion connected to a proximal end portion of the first arm 5.
- a proximal end portion of the second arm 6 is connected to a distal end portion of a drive shaft (eg, cylinder pin) 8 of a press drive portion (eg, hydraulic cylinder) 7.
- the grinding roller 3 is pressed against the rotary table 2 through the first arm 5 and the second arm 6 by pulling the drive shaft 8 of the pressing drive unit 7.
- a rotary drive source 10 and a reducer 11 for the rotary table 2 are installed on the mill installation surface 9, and the rotary drive source 10 and the reducer 11 are connected to the horizontal coupling shaft 12. Are connected by Further, the speed reducer 11 and the rotary table 2 are connected by a vertical main shaft 13.
- the rotary table 2 and the grinding roller 3 are covered with a mill casing 14.
- the supply of the raw material to the turntable 2 is performed via a raw material supply chute 15 disposed through the mill casing 14.
- a hot air duct 16 is connected to the lower part of the side surface of the mill casing 14, and hot air is supplied into the mill casing 14 through the hot air duct 16.
- a separator 17 is provided above the rotary table 2. The crushed raw material is blown up by the hot air supplied to the lower part of the mill casing 14 through the hot air duct 16 and transferred to the separator 17.
- the separator 17 is rotationally driven by a separator driving device 28 composed of an electric motor or the like, and among the crushed raw materials, only a raw material (fine powder) finer than a predetermined particle size (particle diameter) is provided on the upper portion of the mill casing 14. It discharges from the powder discharge duct 18. On the other hand, the raw material (coarse powder) coarser than the predetermined particle size (particle size) is separated by the separator 17 and returned to the turntable 2 and pulverized again.
- a separator driving device 28 composed of an electric motor or the like
- a maintenance passage 19 is formed below the mill casing 14 for drawing the speed reducer 11 through the crushing roller 3 and the pressing mechanism 4 below. More specifically, a maintenance passage 19 is formed through a concrete stand portion 20 that supports the roller pressing mechanism 4 and the like.
- the concrete stand portion 20 is formed by connecting two stand leg portions 20A provided on both sides of the maintenance passage 19 with the upper ends of the two stand leg portions 20A connected to each other. And a connecting portion 20B forming a ceiling portion.
- the rotary table 2 has a hollow structure.
- a table cover 22 is detachably provided on the inner side in the radial direction of the annular crushing surface 21 of the rotary table 2.
- the lower surface of the turntable 2 is constituted by an output flange 23, and the upper end of the vertical main shaft 13 is connected to the center of the output flange 23 via a coupling 24.
- the lower end of the vertical main shaft 13 is connected to the output shaft 25 of the speed reducer 11 via a coupling 26.
- displacement (shaft blur) of the vertical main shaft 13 with respect to the output shaft 25 of the speed reducer 11 is allowed to some extent during rotation.
- the thrust bearing mechanism 27 is equiangular in the circumferential direction in order to slidably support the peripheral portion of the output flange 23 from below.
- a plurality are arranged at intervals.
- the thrust bearing mechanism 27 is placed on the placement surface 29 of the gantry portion (structure) 28.
- High pressure oil is supplied to the bearing surface 30 of the thrust bearing mechanism 27 via an oil supply pipe 31.
- An oil stopper 32 is detachably provided in the vicinity of the thrust bearing mechanism 27.
- the high-pressure oil supplied to the bearing surface 30 via the oil supply pipe 31 is stored in a space formed by the surrounding structure (including the oil stopper member 32) of the thrust bearing mechanism 27.
- the height of the oil retaining member 32 is set so that the liquid level of the stored oil is higher than the bearing surface 30 of the thrust bearing mechanism 27.
- the thrust bearing mechanism 27 is placed on a pedestal 33 placed on the placement surface 29 of the gantry portion 28 via a height adjusting member (height adjusting means) 34.
- the height adjusting member 34 is a plate liner, and the height of the thrust bearing mechanism 27, that is, the height of the bearing surface 30 can be adjusted by adjusting the thickness thereof.
- a pin member 35 is detachably provided adjacent to the pedestal 33 on the mounting surface 29 of the gantry portion 28, and the movement of the pedestal 33 during operation is restricted by the pin member 35.
- a movable-side seal member 36 is provided at the peripheral edge of the output flange 23, and this movable-side seal member 36 performs a sealing function in cooperation with a fixed-side seal member 37 provided in a fixed-side structure. Yes.
- the vertical roller mill 1 includes a radial bearing mechanism 38 for restricting the movement of the output flange 23 in the radial direction, as shown in FIG.
- the radial bearing mechanism 38 includes a movable side bearing member 39 provided on the output flange 23, a fixed side bearing member 40 provided on the gantry portion 28 on which the thrust bearing mechanism 27 is placed, and the movable side bearing member 39.
- a bearing body 41 provided between the side bearing member 40 and the bearing body 40.
- the bearing body 41 is constituted by a sliding bearing.
- the movable-side bearing member 39 includes a cylindrical member provided at the center of the lower surface of the output flange 23.
- the fixed-side bearing member 40 includes an annular member formed with a central opening through which a cylindrical member constituting the movable-side bearing member 39 is inserted.
- the movable bearing member 39 may be connected to the output flange with a bolt or the like regardless of whether or not it is integral with the output flange.
- a working space 42 is formed between the output flange 23 and the fixed-side bearing member 40.
- the output flange 23 is formed with a work opening (manhole) 44 for a worker to enter the work space 42 from the internal space 43 of the turntable 2.
- the working opening 44 is normally sealed by a door member 45 that can be opened and closed.
- the table cover 22 is formed with a work opening (manhole) 46 for an operator to enter the internal space 43 of the rotary table 2.
- the working opening 46 is normally sealed by a door member 47 that can be opened and closed.
- the work opening 44 formed in the output flange 23 and the work opening 46 formed in the table cover 22 are at least partially overlapped when viewed in the vertical direction (rotation axis direction).
- the radial bearing mechanism 38 restricts shaft blurring when the output flange 23 rotates. Thereby, the axial blurring of the turntable 2 at the time of rotation is controlled. Accordingly, the radial force applied to the table, which is generated by the roller load when unstable, can be supported by this portion, and the movable side seal member 36 and the fixed side seal member 37 are prevented from being damaged by the shaft blurring of the output flange 23. can do.
- the vertical main shaft 13 Since the upper end of the vertical main shaft 13 is connected to the output flange 23 via the coupling 24 as described above, the vertical main shaft 13 is caused by misalignment between the speed reducer 11 and the thrust bearing mechanism 27 when the main body is installed. The axial blur is absorbed by the coupling 24.
- the coupling 26 on the lower end side of the vertical main shaft 13 also contributes to absorption of shaft shake. For this reason, about the vertical main axis
- the vertical roller mill 1 when performing maintenance or replacement work of the thrust bearing mechanism 27, an operator can remove the oil around the thrust bearing mechanism 27 in advance and the operator can remove the table cover.
- the door member 47 of 22 is opened to enter the internal space 43 of the turntable 3 through the work opening 46, and the door member 45 of the output flange 23 is opened to enter the work space 42 from the work opening 44. .
- the worker When the worker enters the working space 42, the worker removes the oil stop member 32 to ensure accessibility to the thrust bearing mechanism 27.
- the thrust bearing mechanism 27 When the thrust bearing mechanism 27 is replaced, the rotary table 2 is slightly lifted in advance using a hydraulic jack or the like. As a result, the output flange 23 and the thrust bearing mechanism 27 are separated from each other, so that the load from the output flange 23 to the thrust bearing mechanism 27 can be eliminated.
- the worker can pull out the thrust bearing mechanism 27 radially inward by removing the pin member 35 from the pedestal 33.
- the thrust bearing mechanism 27 is pulled out to the inside in the radial direction by using an appropriate means, and the thrust bearing mechanism 27 is moved to just below the work opening 44 of the output flange 23.
- a work opening 46 of the table cover 22 is disposed immediately above the work opening 44 of the output flange 23. Through these work openings 44, 46, the thrust bearing device 27 is mounted using appropriate means. Lift and take out.
- the thrust bearing mechanism 27 When the new thrust bearing mechanism 27 is installed, the thrust bearing mechanism 27 is suspended to the work space 42 through the work openings 44 and 46 in reverse to the above-described procedure, and is temporarily placed on the fixed-side bearing member 40. Place it and move it further outward in the radial direction. Subsequently, the height of the thrust bearing mechanism 27 is adjusted by the height adjusting member 34 and the thrust bearing mechanism 27 is fixed by the pin member 35 at a predetermined position.
- the vertical roller mill 1 by using the work openings 44 and 46, the work space 42, and the internal space 43, the worker can access the thrust bearing mechanism 27, and Since the thrust bearing mechanism 27 can be carried in and out, replacement work and maintenance work of the thrust bearing mechanism 27 can be performed without hindrance.
- the worker uses the height adjustment member 34 while measuring a slight gap between the thrust bearing mechanism 27 and the output flange 23 in the work space 42. Height adjustment work can be performed accurately on site.
- the weight of the output flange 23 is reduced by the amount of the removed material, so that the output flange 23 is reduced in weight. be able to.
- the four working openings 44 are formed in the output flange 23 at equal angular intervals in the circumferential direction.
- the form of the working openings 44 is not limited to this, and a worker is not limited thereto. As long as it is possible to enter the thrust bearing mechanism 27 and carry the thrust bearing mechanism 27 in and out. The same applies to the work openings 46 formed in the table cover 22.
- this embodiment is equipped with the structure which has arrange
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
本発明は、上述した従来技術の問題点に鑑みて成されたものであって、ミルを大型化した場合においても、回転時における回転テーブルの軸ブレを防止できる竪型ローラミルを提供することを目的とする。
2 回転テーブル
3 粉砕ローラ
4 ローラ押付け機構
5 第1アーム
6 第2アーム
7 押圧駆動部
8 押圧駆動部の駆動軸
9 ミル設置面
10 回転駆動源
11 減速機
12 水平連結軸
13 垂直主軸
14 ミルケーシング
15 原料供給シュート
16 熱風ダクト
17 セパレータ
18 精粉排出ダクト
19 メインテナンス通路
20 スタンド部
20A スタンド脚部
21 回転テーブルの環状破砕面
22 テーブルカバー
23 出力フランジ
24、26 カップリング
25 減速機の出力軸
27 スラスト軸受け機構
28 架台部分
29 架台部分の載置面
30 スラスト軸受け機構の軸受け面
31 給油管
32 油止め部材
33 スラスト軸受け機構の台座
34 スラスト軸受け機構の高さ調節部材(高さ調節手段)
35 ピン部材
36 可動側シール部材
37 固定側シール部材
38 ラジアル軸受け機構
39 可動側軸受け部材
40 固定側軸受け部材
41 軸受け本体
42 作業用空間
43 回転テーブルの内部空間
44 出力フランジの作業用開口(マンホール)
45 出力フランジの扉部材
46 テーブルカバーの作業用開口(マンホール)
47 テーブルカバーの扉部材
Claims (12)
- 回転テーブルと粉砕ローラとの間で被粉砕物を噛み込んで粉砕する竪型ローラミルであって、
前記回転テーブルの下方に配置された減速機と、
前記減速機からの駆動力を前記回転テーブルに伝達するための垂直主軸と、
前記垂直主軸の上端がその中央部に接続されると共に前記回転テーブルの下面を構成する出力フランジと、
前記出力フランジの周縁部を下方から摺動可能に支持するためのスラスト軸受け機構と、
前記出力フランジの半径方向の移動を規制するためのラジアル軸受け機構と、を備えた、竪型ローラミル。 - 前記ラジアル軸受け機構は、前記出力フランジに設けられた可動側軸受け部材と、前記スラスト軸受け機構が載置された構造物に設けられた固定側軸受け部材と、前記可動側軸受け部材と前記固定側軸受け部材との間に設けられた軸受け本体と、を有する、請求項1記載の竪型ローラミル。
- 前記可動側軸受け部材は、前記出力フランジの下面中央部に設けられた筒状部材を含み、
前記固定側軸受け部材は、前記筒状部材が挿通される中央開口が形成された環状部材を含む、請求項2記載の竪型ローラミル。 - 前記軸受け本体は、滑り軸受けである、請求項2または3に記載の竪型ローラミル。
- 前記出力フランジと前記固定側軸受け部材との間に作業用空間が形成されており、
前記作業用空間に作業員が進入するための作業用開口が前記出力フランジに形成されている、請求項2乃至4のいずれか一項に記載の竪型ローラミル。 - 前記回転テーブルは、中空構造を有しており、
前記作業用開口は、前記回転テーブルの内部空間に連通している、請求項2乃至4のいずれか一項に記載の竪型ローラミル。 - 前記回転テーブルの環状破砕面よりも半径方向内側にテーブルカバーが設けられており、
前記回転テーブルの前記内部空間に作業員が進入するための作業用開口が前記テーブルカバーに形成されている、請求項6記載の竪型ローラミル。 - 前記出力フランジに形成された前記作業用開口と、前記テーブルカバーに形成された前記作業用開口とが、上下方向から見て少なくとも部分的に重なり合っている、請求項7記載の竪型ローラミル。
- 前記作業用開口を開放可能に封止するための扉部材を有する、請求項5乃至8のいずれか一項に記載の竪型ローラミル。
- 前記スラスト軸受け機構が載置された構造物に着脱自在に設けられたピン部材によって、運転時における前記スラスト軸受け機構の移動が規制されており、
前記ピン部材を前記構造物から取り外すことにより、半径方向内側への前記スラスト軸受け機構の移動が可能となるように構成されている、請求項1乃至9のいずれか一項に記載の竪型ローラミル。 - 前記垂直主軸の前記上端は、前記出力フランジの前記中央部にカップリング機構を介して接続されている、請求項1乃至10のいずれか一項に記載の竪型ローラミル。
- 前記スラスト軸受け機構の高さを調整するための高さ調整手段をさらに有する、請求項1乃至11のいずれか一項に記載の竪型ローラミル。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201480079967.1A CN106457257B (zh) | 2014-06-17 | 2014-06-17 | 立式辊磨机 |
JP2016528680A JP6367330B2 (ja) | 2014-06-17 | 2014-06-17 | 竪型ローラミル |
EP14895412.6A EP3159060B1 (en) | 2014-06-17 | 2014-06-17 | Vertical roller mill |
PCT/JP2014/065972 WO2015193959A1 (ja) | 2014-06-17 | 2014-06-17 | 竪型ローラミル |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2014/065972 WO2015193959A1 (ja) | 2014-06-17 | 2014-06-17 | 竪型ローラミル |
Publications (1)
Publication Number | Publication Date |
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WO2015193959A1 true WO2015193959A1 (ja) | 2015-12-23 |
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PCT/JP2014/065972 WO2015193959A1 (ja) | 2014-06-17 | 2014-06-17 | 竪型ローラミル |
Country Status (4)
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EP (1) | EP3159060B1 (ja) |
JP (1) | JP6367330B2 (ja) |
CN (1) | CN106457257B (ja) |
WO (1) | WO2015193959A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN115229595A (zh) * | 2022-06-27 | 2022-10-25 | 安徽泫氏铸造有限责任公司 | 一种球墨铸铁管承口旋转式打磨装置 |
Families Citing this family (1)
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CN109499732B (zh) * | 2019-01-15 | 2023-12-05 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | 高压辊磨工艺厂房 |
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JPS5396564A (en) * | 1977-01-28 | 1978-08-23 | Loesche Kg | Roller pulverizer |
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JPH0567334U (ja) * | 1992-02-20 | 1993-09-07 | 株式会社神戸製鋼所 | 立形ローラミルのスラスト荷重受け装置 |
JPH0857333A (ja) * | 1994-08-26 | 1996-03-05 | Ube Ind Ltd | 竪型粉砕機用減速機の分解点検整備方法 |
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GB1528256A (en) * | 1976-05-12 | 1978-10-11 | Smidth & Co As F L | Roller mills |
DK160463C (da) * | 1977-12-13 | 1991-09-09 | Fives Cail Babcock | Knusevaerk, saasom kantmoelle med lodret aksel |
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2014
- 2014-06-17 WO PCT/JP2014/065972 patent/WO2015193959A1/ja active Application Filing
- 2014-06-17 EP EP14895412.6A patent/EP3159060B1/en active Active
- 2014-06-17 CN CN201480079967.1A patent/CN106457257B/zh active Active
- 2014-06-17 JP JP2016528680A patent/JP6367330B2/ja active Active
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JPS5396564A (en) * | 1977-01-28 | 1978-08-23 | Loesche Kg | Roller pulverizer |
JPS6387548U (ja) * | 1986-11-26 | 1988-06-07 | ||
JPH0567334U (ja) * | 1992-02-20 | 1993-09-07 | 株式会社神戸製鋼所 | 立形ローラミルのスラスト荷重受け装置 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN115229595A (zh) * | 2022-06-27 | 2022-10-25 | 安徽泫氏铸造有限责任公司 | 一种球墨铸铁管承口旋转式打磨装置 |
CN115229595B (zh) * | 2022-06-27 | 2024-05-10 | 安徽泫氏铸造有限责任公司 | 一种球墨铸铁管承口旋转式打磨装置 |
Also Published As
Publication number | Publication date |
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CN106457257A (zh) | 2017-02-22 |
EP3159060B1 (en) | 2021-05-12 |
JPWO2015193959A1 (ja) | 2017-04-20 |
CN106457257B (zh) | 2019-02-12 |
EP3159060A4 (en) | 2018-01-24 |
JP6367330B2 (ja) | 2018-08-01 |
EP3159060A1 (en) | 2017-04-26 |
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