JPH05345138A - Gap control device of vertical mill - Google Patents
Gap control device of vertical millInfo
- Publication number
- JPH05345138A JPH05345138A JP17900992A JP17900992A JPH05345138A JP H05345138 A JPH05345138 A JP H05345138A JP 17900992 A JP17900992 A JP 17900992A JP 17900992 A JP17900992 A JP 17900992A JP H05345138 A JPH05345138 A JP H05345138A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- gap
- vertical mill
- support material
- adjusting
- 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
Landscapes
- Crushing And Grinding (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、石炭などの砕料を粉砕
する竪型ミルの間隙調整装置に係り、特にローラと回転
テーブルとの間隙を調整して広範囲な負荷範囲における
粉砕性能を向上できるようにした竪型ミルの間隙調整装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gap adjusting device for a vertical mill for pulverizing crushed material such as coal, and particularly for improving the pulverizing performance in a wide load range by adjusting the gap between a roller and a rotary table. The present invention relates to a gap adjusting device for a vertical type mill.
【0002】[0002]
【従来の技術】従来、竪型ミルの間隙調整装置として
は、図3にしめすようにローラ14のローラ支持材16
の下端側部にて調整ボルト22を調整してローラ14と
回転テーブル12との間隙を調整できる構造とされてい
る。2. Description of the Related Art Conventionally, as a gap adjusting device for a vertical mill, as shown in FIG.
The structure is such that the gap between the roller 14 and the rotary table 12 can be adjusted by adjusting the adjusting bolt 22 at the lower end side of the.
【0003】図3において、竪型ミル10はローラ14
および回転テーブル12により粉砕部が形成されてお
り、18は支軸をしめし、ローラ14を支持しているロ
ーラ支持材16は支軸18の回りに傾動自在とされ、加
圧部材20の作動によりローラ支持材16の上端側部が
加圧されてローラ14が粉砕層を挿んで回転テーブル1
2を加圧するようにされている。そして、前記調整ボル
ト22を調整してローラ14が回転テーブル12と直接
接触をもたらすことがないように最小間隙が設定されて
運転される。In FIG. 3, the vertical mill 10 includes rollers 14
A crushing portion is formed by the rotary table 12, and 18 is a support shaft, and the roller support member 16 supporting the roller 14 is tiltable around the support shaft 18. The upper end portion of the roller support member 16 is pressed and the roller 14 inserts the crushing layer into the rotary table 1.
It is designed to pressurize 2. Then, the adjusting bolt 22 is adjusted so that the roller 14 is operated with the minimum gap set so as not to bring the roller 14 into direct contact with the rotary table 12.
【0004】回転テーブル12の駆動によりローラ14
は従動とされ、砕料32である石炭は給炭管を下降通過
して粉砕部に至り、ローラ14と回転テーブル12との
間隙に形成された粉砕層において熱ガス24の導入のも
とで圧縮力およびせん断力の作用を受けて粉砕され、気
流とともにケーシング内を上昇し、回転分級機30を通
過して微粉と粗粉とに分離され、微粉は砕製品として排
ガス34に随伴されて次工程へ搬送される。また粗粉は
粉砕室内に戻されて再び粉砕することが繰返えされる。The roller 14 is driven by the rotation table 12 being driven.
Is driven, and the coal, which is the crushing material 32, passes through the coal feeding pipe downwardly to reach the crushing section, and under the introduction of the hot gas 24 in the crushing layer formed in the gap between the roller 14 and the rotary table 12. The powder is crushed by the action of the compressive force and the shearing force, rises in the casing together with the air flow, passes through the rotary classifier 30 and is separated into fine powder and coarse powder. Transferred to the process. The coarse powder is returned to the crushing chamber and crushed again.
【0005】竪型ミル10の運転が長時間継続される
と、ローラ14および回転テーブル12の摩耗、とくに
ローラ14の摩耗が発生し、前記間隙が増大し、厚い粉
砕層のもとでの粉砕が継続されると前記圧縮力およびせ
ん断力の伝達が減少して粉砕性能を減少させてしまうの
で、前記間隙の上限が存在する。上述したようにローラ
14の摩耗が著しく進展した場合、前記間隙を縮少させ
るために、加圧部材20を加圧させてローラ支持材16
を傾動させてローラ14を下方移動させた状態にて竪型
ミル10の運転が継続される。さらにローラ支持材16
の傾動が継続される場合、ローラ支持材16の下端側部
が前記調整ボルト22と接触するに至り、この状態にて
竪型ミル10の運転が行われると前記間隙が縮少されて
いるので薄い粉砕層のもとで粉砕されて、直接接触に類
似した接触状態をもたらし、竪型ミル10には過大な振
動を発生させるので前記間隙の下限が存在する。そして
下限に到達することを回避するように調整ボルト22お
よび加圧部材20の調整が行われる。When the vertical mill 10 is continuously operated for a long period of time, the rollers 14 and the rotary table 12 are abraded, especially the rollers 14 are abraded, so that the gap is increased and the pulverization is performed under a thick pulverized layer. Since the transmission of the compressive force and the shearing force is reduced and the crushing performance is reduced if the above is continued, there is an upper limit of the gap. When the wear of the roller 14 significantly progresses as described above, the pressure member 20 is pressed to reduce the gap, and the roller support member 16 is pressed.
The vertical mill 10 is continuously operated with the roller 14 tilted and the roller 14 moved downward. Further roller support 16
When the tilting is continued, the lower end side portion of the roller support member 16 comes into contact with the adjusting bolt 22, and when the vertical mill 10 is operated in this state, the gap is reduced. There is a lower limit for the gap as it is ground under a thin grinding layer resulting in a contact state similar to direct contact and causing excessive vibration in the vertical mill 10. Then, the adjustment bolt 22 and the pressing member 20 are adjusted so as to avoid reaching the lower limit.
【0006】また、従来、竪型ミルの間隙測定装置が知
られているが、ローラと回転テーブルとの間隙を自動調
整するようにしたものは提案されていない(特開昭63
−278561号公報)。Conventionally, a gap measuring device for a vertical mill has been known, but a device for automatically adjusting the gap between a roller and a rotary table has not been proposed (JP-A-63-63).
-278651).
【0007】[0007]
【発明が解決しようとする課題】ところが、上記従来の
構成は、ローラと回転テーブルとの間隙を調整するため
に有効であるが、ローラの摩耗が進展したさいにローラ
支持材を傾動させて前記間隙を縮少させた場合、竪型ミ
ルに過大な振動などを発生させるので、間隙の下限以内
にて運転させることとなり竪型ミルの粉砕負荷範囲が制
約されてしまうことがあり好ましくない。However, the above-mentioned conventional structure is effective for adjusting the gap between the roller and the rotary table. However, when the wear of the roller progresses, the roller support member is tilted and the above-mentioned structure is used. If the gap is reduced, excessive vibration is generated in the vertical mill, so that the vertical mill is operated within the lower limit, which may limit the crushing load range of the vertical mill, which is not preferable.
【0008】本発明は上述の問題点を解決するためにな
されたもので、その目的は、ローラと回転テーブルとの
間隙すなわち、粉砕層厚さを最適な状態に保持して粉砕
性能の低下、竪型ミルの粉砕負荷範囲の制約や低負荷時
の、過大な振動発生を有効に防止させることができる竪
型ミルの間隙調整装置を提供することを目的とする。The present invention has been made to solve the above-mentioned problems, and its purpose is to reduce the crushing performance by keeping the gap between the roller and the rotary table, that is, the crushing layer thickness in an optimum state. An object of the present invention is to provide a vertical mill gap adjusting device that can effectively prevent excessive vibration from occurring when the vertical mill has a restricted crushing load range and a low load.
【0009】[0009]
【課題を解決するための手段】かかる目的を達成するた
めに、本発明では、竪型ミルのローラと回転テーブルと
の間隙を調整する間隙調整装置であって、支軸の回りに
傾動可能なローラ支持材の下端側部に調整シリンダにて
作動する調整具を押圧させてローラ支持材の傾動を受圧
し、ローラと回転テーブルとの間隙を調整することを特
徴とするものである。In order to achieve such an object, the present invention is a gap adjusting device for adjusting a gap between a roller of a vertical mill and a rotary table, which is tiltable around a spindle. It is characterized in that an adjusting tool operated by an adjusting cylinder is pressed against the lower end side of the roller supporting member to receive the tilting movement of the roller supporting member and adjust the gap between the roller and the rotary table.
【0010】[0010]
【作用】このようにすれば、ローラの摩耗が進展してロ
ーラ支持材を傾動して前記間隙を縮少させる場合、ロー
ラ支持材は調整シリンダの調整具による位置決めにより
常に受圧されているので急激な接触のもとでの間隙調整
がなくなり、粉砕層厚さを最適な状態に保持できて、粉
砕性能の低下、粉砕負荷範囲の制約や低負荷時の過大な
振動発生を有効に防止できる。また、粉砕層厚さはロー
ラ支持材の支軸の回転角を検出し、竪型ミルの前記間隙
による粉砕特性を規範としてフィードバック制御を行う
制御部により前記間隙調整を行うので、最適な粉砕操作
を行うことができる。With this arrangement, when the roller wear advances and the roller support member tilts to reduce the gap, the roller support member is constantly pressured by the positioning by the adjusting tool of the adjusting cylinder. It is possible to keep the crushing layer thickness in an optimum state by eliminating the gap adjustment under various contact conditions, and effectively prevent the deterioration of the crushing performance, the restriction of the crushing load range, and the occurrence of excessive vibration under low load. Further, the crushing layer thickness is adjusted by detecting the rotation angle of the support shaft of the roller support and performing the gap adjustment by the control unit that performs feedback control based on the crushing characteristics of the vertical mill based on the above-mentioned gap, so that the optimum crushing operation can be performed. It can be performed.
【0011】[0011]
【実施例】以下、図面を参照にして本発明の実施例につ
いて説明する。図1は、本発明の一実施例を示す竪型ミ
ルの間隙調整装置の主要部の断面図、図2は、本発明の
実施例の作用を説明する説明図であり、図3に示す部材
と共通する部材には同一符号を付してある。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of a main part of a gap adjusting device for a vertical mill showing an embodiment of the present invention, FIG. 2 is an explanatory view for explaining the operation of the embodiment of the present invention, and members shown in FIG. The same members as those in FIG.
【0012】図1,2において、ローラ支持材16の下
端側部17はストッパーを形成するとともに、下端側部
17を押圧させる調整具36を有する調整シリンダ38
がケーシング26のカバー27に取付けられている。調
整シリンダ38は油圧回路を形成している油圧ポンプ4
6、サーボ弁42、アキュムレータ40等の作用によっ
て作動される。In FIGS. 1 and 2, the lower end side portion 17 of the roller support member 16 forms a stopper and has an adjusting cylinder 38 having an adjusting tool 36 for pressing the lower end side portion 17.
Is attached to the cover 27 of the casing 26. The adjusting cylinder 38 is a hydraulic pump 4 forming a hydraulic circuit.
6, operated by the action of the servo valve 42, the accumulator 40, and the like.
【0013】48はローラ支持材16の支軸18の回転
角を検出する検出手段であり、磁気センサ、視覚センサ
などの近接センサなどが好適である。検出手段48から
の検出信号49は指令値52のもとで制御部50に入力
されて所要の制御動作が行われ、操作信号51はサーボ
弁42に入力されて油圧回路に作用し、前記駆動シリン
ダ38の作動が操作される。また制御部50からの出力
信号54は上位制御、例えば給炭量制御のための信号や
画像処理のための信号などに用いられる。Reference numeral 48 is a detection means for detecting the rotation angle of the support shaft 18 of the roller support member 16, and a proximity sensor such as a magnetic sensor or a visual sensor is suitable. The detection signal 49 from the detection means 48 is input to the control unit 50 under the command value 52 to perform the required control operation, and the operation signal 51 is input to the servo valve 42 to act on the hydraulic circuit to drive the drive. The operation of the cylinder 38 is operated. The output signal 54 from the control unit 50 is used for higher-level control, for example, a signal for controlling the amount of coal supply and a signal for image processing.
【0014】このようにして、加圧部材20の作動によ
りローラ支持部材16は調整具36の位置決めされた先
端位置にて下端側部17が接触するように傾動され、ロ
ーラ16と回転テーブル12との間隙が決定される。そ
して、調整シリンダ38の作動によって調整具36の先
端の位置決めが行われるが、前記制御部50への指令値
52を入力させることにより前記間隙も決定される。In this way, the roller support member 16 is tilted by the operation of the pressure member 20 so that the lower end side portion 17 comes into contact with the positioned tip end position of the adjusting tool 36, and the roller 16 and the rotary table 12 are brought into contact with each other. Is determined. Then, the tip of the adjusting tool 36 is positioned by the operation of the adjusting cylinder 38, and the gap is also determined by inputting the command value 52 to the controller 50.
【0015】図2(a)において、竪型ミルの起動時に
はローラ14と回転テーブル12とが直接接触すること
を回避させるために間隙G0 を保持するように調整具3
6の先端位置L0 のもとでローラ支持材16は中心線C
L0 をもって傾動され、ローラ14の外径D0 は初期寸
法を有している。In FIG. 2 (a), when the vertical mill is started, the adjusting tool 3 is held so as to hold the gap G 0 in order to prevent the roller 14 and the rotary table 12 from coming into direct contact with each other.
Roller support member 16 under the end position L 0 of 6 centerline C
Tilted with L 0 , the outer diameter D 0 of the roller 14 has initial dimensions.
【0016】図2(b)において、竪型ミルの定常運転
時には間隙G1 を保持するように調整具36の先端位置
L1 に位置決めされて、ローラ支持材16は中心線CL
1 をもって傾動される。このさいのローラ14の外径D
1 は初期寸法D0 を有している場合について説明してい
る。In FIG. 2 (b), the roller support 16 is positioned at the tip position L 1 of the adjusting tool 36 so as to maintain the gap G 1 during the steady operation of the vertical mill, and the roller support member 16 has the center line CL.
Tilt with 1 . Outer diameter D of roller 14 at this time
1 has explained the case where it has the initial dimension D 0 .
【0017】図2(c)において、竪型ミルの長時間運
転に伴いローラ14の摩耗が進展し、外径D1 は初期寸
法D0 よりも縮少し、かつ間隙G2 が間隙G1 よりも増
加していることを示し、竪型ミルの粉砕性能が低下する
に至る。In FIG. 2 (c), wear of the roller 14 progresses as the vertical mill is operated for a long time, the outer diameter D 1 is smaller than the initial dimension D 0 , and the gap G 2 is smaller than the gap G 1 . It also indicates that the vertical mill is pulverizing performance is deteriorated.
【0018】図2(d)において、図2(c)の状態に
あった外径D2 と同一な寸法からなる外径D3 ローラ1
4は良好な粉砕性能が得られるように、間隙G3 を保持
するために、調整具36の先端位置L3 に位置決めされ
てローラ支持材16は中心線CL3 をもって傾動され
る。In FIG. 2D, an outer diameter D 3 roller 1 having the same size as the outer diameter D 2 in the state shown in FIG. 2C.
No. 4 is positioned at the tip end position L 3 of the adjusting tool 36 and the roller supporting member 16 is tilted with the center line CL 3 in order to maintain the gap G 3 so that good crushing performance can be obtained.
【0019】再び、図1において、制御部50において
は、初期寸法を有しているローラ14および回転テーブ
ル12を用いた粉砕によって、竪型ミル10の粉砕負荷
率と前記間隙G、すなわち、粉砕層厚さとの関数関係は
関数発生器をもちいて予じめ規範として与えられている
ので、前記支軸18の回転角の検出と前記関数関係の検
出の偏差が生じた場合には指令値52に対応したフィー
ドバック制御動作が行われ、すなわち、ローラ14の摩
耗が進展した場合には、駆動シリンダ38が作動して間
隙Gが縮少されるように自動間隙調整され、竪型ミル1
0は最適な粉砕操作のもとで運転の継続が可能とされ
る。また、竪型ミルの低負荷運転時に間隙Gが下限に近
接して振動の発生が増大する場合、これら振動力はロー
ラ支持材16から調整具36および調整シリンダ38を
介して油圧回路にあるアキュムレータに吸収されるの
で、竪型ミル10本体に過大な振動を発生させることな
く、低負荷運転を可能にできて、従来技術に比して粉砕
負荷範囲を増大させることができる。Referring again to FIG. 1, in the control unit 50, the crushing load factor of the vertical mill 10 and the gap G, that is, crushing is performed by crushing using the roller 14 and the rotary table 12 having the initial dimensions. Since the functional relationship with the layer thickness is given as a pre-determination standard by using the function generator, when the deviation between the detection of the rotation angle of the support shaft 18 and the detection of the functional relationship occurs, the command value 52 When the feedback control operation corresponding to the above is performed, that is, when the wear of the roller 14 progresses, the drive cylinder 38 operates and the gap G is automatically adjusted so as to reduce the gap G, and the vertical mill 1
With 0, the operation can be continued under the optimum grinding operation. Further, when the gap G approaches the lower limit and the occurrence of vibration increases during low load operation of the vertical mill, these vibration forces are accumulated in the hydraulic circuit from the roller support member 16 via the adjusting tool 36 and the adjusting cylinder 38. Therefore, low load operation can be performed without generating excessive vibration in the vertical mill 10 main body, and the crushing load range can be increased as compared with the prior art.
【0020】[0020]
【発明の効果】以上説明したように、本発明によれば、
竪型ミルの長時間運転によりローラの摩耗が進展してロ
ーラ支持材を傾動して間隙を縮少させる場合ローラ支持
材は調整シリンダの調整具による位置決めにより常に受
圧されているので急激な接触のもとでの間隙調整がなく
なり、粉砕層厚さを最適な状態に保持できて、粉砕性能
の低下、粉砕負荷範囲の制約や低負荷時の過大な振動発
生を有効に防止できる。また、粉砕層厚さはローラ支持
材の支軸の回転角を検出し、竪型ミルの前記間隙による
粉砕特性を規範としてフィードバック制御を行う制御部
により前記間隙調整を行うので、最適な粉砕操作を行う
ことができる等、多大な効果を奏する。As described above, according to the present invention,
When the wear of the roller progresses due to the long-time operation of the vertical mill and the roller support is tilted to reduce the gap, the roller support is constantly receiving pressure due to the positioning of the adjusting cylinder adjustment tool. Since the original gap adjustment is eliminated, the crushing layer thickness can be maintained in an optimum state, and it is possible to effectively prevent deterioration of the crushing performance, restriction of the crushing load range, and generation of excessive vibration at low load. Further, the thickness of the crushed layer is detected by detecting the rotation angle of the support shaft of the roller support material, and the gap is adjusted by the control unit that performs feedback control based on the crushing characteristic of the gap of the vertical mill as a reference. It is possible to perform a great effect.
【図1】本発明の一実施例を示す竪型ミルの間隙調整装
置の主要部の断面図、FIG. 1 is a sectional view of a main part of a gap adjusting device of a vertical mill showing an embodiment of the present invention,
【図2】本発明の実施例の作用を説明する説明図、FIG. 2 is an explanatory view for explaining the operation of the embodiment of the present invention,
【図3】従来の竪型ミルの間隙調整装置の全体構成図。FIG. 3 is an overall configuration diagram of a conventional gap adjusting device for a vertical mill.
10 竪型ミル 12 回転テーブル 14 ローラ 16 ローラ支持材 18 支軸 36 調整具 38 調整シリンダ 48 検出手段 50 制御部 10 Vertical Mill 12 Rotating Table 14 Roller 16 Roller Supporting Material 18 Spindle 36 Adjusting Tool 38 Adjusting Cylinder 48 Detecting Means 50 Control Section
Claims (3)
隙を調整する間隙調整装置であって、支軸の回りに傾動
可能なローラ支持材の下端側部に調整シリンダにて作動
する調整具を押圧させてローラ支持材の傾動を受圧し、
ローラと回転テーブルとの間隙を調整することを特徴と
する竪型ミルの間隙調整装置。1. A gap adjusting device for adjusting a gap between a roller of a vertical mill and a rotary table, wherein the adjusting tool is actuated by an adjusting cylinder on a lower end side of a roller supporting member which can be tilted around a support shaft. Is pressed to receive the tilting of the roller support material,
A clearance adjusting device for a vertical mill, which adjusts a clearance between a roller and a rotary table.
を所要範囲内に調整することを特徴とする請求項第1項
に記載の竪型ミルの間隙調整装置。2. The gap adjusting device for a vertical mill according to claim 1, wherein the adjusting device adjusts a gap between the roller and the rotary table within a required range.
出信号によりローラと回転テーブルとの間隙を調整する
ための制御部とを備えたことを特徴とする請求項第1項
又は第2項に記載の竪型ミルの間隙調整装置。3. A detection means for detecting the rotation angle of the support shaft, and a control portion for adjusting the gap between the roller and the rotary table according to the detection signal. A gap adjusting device for a vertical mill according to item 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4179009A JP2631602B2 (en) | 1992-06-13 | 1992-06-13 | Automatic clearance adjustment device for vertical mills |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4179009A JP2631602B2 (en) | 1992-06-13 | 1992-06-13 | Automatic clearance adjustment device for vertical mills |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05345138A true JPH05345138A (en) | 1993-12-27 |
JP2631602B2 JP2631602B2 (en) | 1997-07-16 |
Family
ID=16058523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4179009A Expired - Lifetime JP2631602B2 (en) | 1992-06-13 | 1992-06-13 | Automatic clearance adjustment device for vertical mills |
Country Status (1)
Country | Link |
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JP (1) | JP2631602B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101010603B1 (en) * | 2008-12-18 | 2011-01-25 | 한전케이피에스 주식회사 | The Pulverizer Machine |
KR200468548Y1 (en) * | 2011-06-28 | 2013-08-20 | 주식회사 세코 | Pulverizer for power plant |
WO2015136815A1 (en) * | 2014-03-12 | 2015-09-17 | 株式会社グローエンジニアリング | Operation control system for grinder and diagnostic device |
WO2018123697A1 (en) * | 2016-12-29 | 2018-07-05 | 株式会社アーステクニカ | Vertical mill |
JP2019111486A (en) * | 2017-12-22 | 2019-07-11 | 株式会社アーステクニカ | Vertical mill and stopper load estimation method |
JP2021074659A (en) * | 2019-11-06 | 2021-05-20 | 宇部興産機械株式会社 | Vertical mill |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62144549U (en) * | 1986-03-05 | 1987-09-11 | ||
JPS6332644U (en) * | 1986-08-21 | 1988-03-02 | ||
JPS6432737U (en) * | 1987-08-25 | 1989-03-01 | ||
JPH0256257A (en) * | 1988-08-19 | 1990-02-26 | Ube Ind Ltd | Vertical type pulverizing machine |
-
1992
- 1992-06-13 JP JP4179009A patent/JP2631602B2/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62144549U (en) * | 1986-03-05 | 1987-09-11 | ||
JPS6332644U (en) * | 1986-08-21 | 1988-03-02 | ||
JPS6432737U (en) * | 1987-08-25 | 1989-03-01 | ||
JPH0256257A (en) * | 1988-08-19 | 1990-02-26 | Ube Ind Ltd | Vertical type pulverizing machine |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101010603B1 (en) * | 2008-12-18 | 2011-01-25 | 한전케이피에스 주식회사 | The Pulverizer Machine |
KR200468548Y1 (en) * | 2011-06-28 | 2013-08-20 | 주식회사 세코 | Pulverizer for power plant |
WO2015136815A1 (en) * | 2014-03-12 | 2015-09-17 | 株式会社グローエンジニアリング | Operation control system for grinder and diagnostic device |
WO2018123697A1 (en) * | 2016-12-29 | 2018-07-05 | 株式会社アーステクニカ | Vertical mill |
JP2018108557A (en) * | 2016-12-29 | 2018-07-12 | 株式会社アーステクニカ | Vertical mill |
JP2019111486A (en) * | 2017-12-22 | 2019-07-11 | 株式会社アーステクニカ | Vertical mill and stopper load estimation method |
JP2021074659A (en) * | 2019-11-06 | 2021-05-20 | 宇部興産機械株式会社 | Vertical mill |
Also Published As
Publication number | Publication date |
---|---|
JP2631602B2 (en) | 1997-07-16 |
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