EP0096852B1 - Broyeur à cuve tournante - Google Patents

Broyeur à cuve tournante Download PDF

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Publication number
EP0096852B1
EP0096852B1 EP83105662A EP83105662A EP0096852B1 EP 0096852 B1 EP0096852 B1 EP 0096852B1 EP 83105662 A EP83105662 A EP 83105662A EP 83105662 A EP83105662 A EP 83105662A EP 0096852 B1 EP0096852 B1 EP 0096852B1
Authority
EP
European Patent Office
Prior art keywords
mill
indicating
height
bowl
layer
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.)
Expired
Application number
EP83105662A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0096852A1 (fr
Inventor
Guy Quesnel
Daniel Fontanille
Gérard Charbonnier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stein Industrie SA
Original Assignee
Stein Industrie SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9274962&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0096852(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Stein Industrie SA filed Critical Stein Industrie SA
Priority to AT83105662T priority Critical patent/ATE17447T1/de
Publication of EP0096852A1 publication Critical patent/EP0096852A1/fr
Application granted granted Critical
Publication of EP0096852B1 publication Critical patent/EP0096852B1/fr
Expired legal-status Critical Current

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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
    • B02C25/00—Control arrangements specially adapted for crushing or disintegrating

Definitions

  • the present invention relates to a tank mill with a vertical axis in relative rotational movement with respect to members for pressing the material to be ground against the tank surface controlled by hydraulic jacks, with an adjustment and control circuit depending on the material to be ground, comprising a member indicating the flow of material introduced into the mill and a member indicating the pressure of the hydraulic fluid in the jacks.
  • the object of the present invention is to remedy these difficulties, and to provide a tank mill which automatically adapts to the characteristics of the material to be ground when these change during operation and which therefore prevents any incident and any stoppage. walking when supplied with a material with characteristics varying over time.
  • the mill according to the invention is characterized in that it further comprises a member indicating the power absorbed by the mill, a member indicating the height of the layer of material between the pressing members and the tank, and means sensitive to the data of the indicator bodies to maintain a variation in height as a function of the mill flow rate according to a predetermined linear law between 30% and 100% of the maximum flow rate.
  • FIG. 1 represents the crusher and its control device as a function of the height of the layer of coal during grinding.
  • Figure 2 shows the linear relationship between the coal flow rate and the height of the layer in the mill.
  • the rotary vat mill 1 with an axis of rotation 2 has an inclined flange 3 forming a raceway for the frustoconical rollers such as 4, of which only one is shown.
  • the roller 4 is carried by the axis 5 pivoting around the articulation 6.
  • the end 7 of the axis 5 is articulated on the rod 8 of a hydraulic cylinder 9 with piston 10.
  • the coal to be ground, stored in the hopper 11, is taken up by the endless movement grid 12, the drive roller 13 of which is driven by the motor 14. Its thickness on the grid is fixed by a scraper 15. It falls of the grid in the vertical duct 16 which opens onto the mill above its axis. It is then projected onto the periphery of the rotating tank and is crushed by its passage between the rollers and the raceway.
  • the pressure of the hydraulic cylinder 9 is controlled by a control device 17, which in particular comprises a reservoir of hydraulic fluid, a pumped pump and a pressure regulator, all three of known type and not shown.
  • the control device 17 is connected to the jack 9 by the conduit 18 and to the control and regulation assembly 19.
  • This control and regulation assembly receives the indications from the sensor 20, which measures the coal flow rate determined by the speed of rotation of the roller 13, as well as from the sensor 21 disposed near the axis 5 of the roller, which measures the height of the layer of carbon between the roller and the raceway. It is also connected to the sensor 22, connected to the motor 23 for driving the axis of the mill, and which measures the power absorbed by the latter. It is finally connected to the sensor 24 which measures the hydraulic pressure applied to the jack 8.
  • the control and regulation assembly 19 constituted for example by a microprocessor, develops the pressure to be applied to the jack 8 via the control device 17 as a function of the coal flow rate indicated by the sensor 20 to obtain the layer height measured by the sensor 21, which will respond to the linear relationship between the coal flow rate D (in% of the nominal flow rate) and the layer height H (in mm) shown in FIG. 2. This relationship is valid for flow rates varying from 30 at 100% of the nominal flow, the height of the carbon layer varying for example from 15 to 25 mm.
  • the control and regulation assembly 19 is also sensitive to the power absorbed by the crusher, indicated by the sensor 22, as well as to the pressure of application of the rollers against the coal to be ground in the tank, indicated by the sensor 24. It weighs the respective effects of variations in the height of the coal layer, the flow of coal, the power absorbed by the mill and the pressure of application of the rollers so as to maintain between the flow of coal and the thickness of carbon during grinding between the rollers and the revolving tank, a linear relationship similar to that of FIG. 2. Furthermore, the sensors 22 and 24 can be connected to visual or graphic recording instruments, and possibly to emergency stop devices, not shown.
  • the grinding rollers could be replaced by rollers, balls, etc. of the coal crusher could be done other than by a mobile feeding grid.
  • the crusher tank could be fixed, and the grinding members mobile.
  • the invention applies firstly to the grinding of coal, but it would also be suitable for the grinding of other materials, such as ores, phosphates, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
EP83105662A 1982-06-14 1983-06-09 Broyeur à cuve tournante Expired EP0096852B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83105662T ATE17447T1 (de) 1982-06-14 1983-06-09 Rotierende schuesselmuehle.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8210312A FR2528325A1 (fr) 1982-06-14 1982-06-14 Broyeur a cuve tournante
FR8210312 1982-06-14

Publications (2)

Publication Number Publication Date
EP0096852A1 EP0096852A1 (fr) 1983-12-28
EP0096852B1 true EP0096852B1 (fr) 1986-01-15

Family

ID=9274962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105662A Expired EP0096852B1 (fr) 1982-06-14 1983-06-09 Broyeur à cuve tournante

Country Status (7)

Country Link
EP (1) EP0096852B1 (enrdf_load_stackoverflow)
JP (1) JPS594451A (enrdf_load_stackoverflow)
AT (1) ATE17447T1 (enrdf_load_stackoverflow)
CA (1) CA1190908A (enrdf_load_stackoverflow)
DE (1) DE3361842D1 (enrdf_load_stackoverflow)
FR (1) FR2528325A1 (enrdf_load_stackoverflow)
ZA (1) ZA834312B (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1161154B (it) * 1983-04-21 1987-03-11 Carle & Montanari Spa Dispositivo per la regolazione e la sorveglianza dello spessore del film di cioccolato in raffinatrici di cioccolato
JPS60125260A (ja) * 1983-12-13 1985-07-04 宇部興産株式会社 竪型ロ−ラミルにおける粉砕品粉末度の制御方法
JPS63162049A (ja) * 1986-12-26 1988-07-05 三菱鉱業セメント株式会社 竪型ミルの運転方法
JPS6432737U (enrdf_load_stackoverflow) * 1987-08-25 1989-03-01
TW278053B (enrdf_load_stackoverflow) * 1993-09-24 1996-06-11 Sintokogio Ltd
ES2261038B1 (es) * 2004-10-15 2007-11-16 Horst Lutzow Maquina trituradora integral.
JP4789019B2 (ja) * 2007-12-07 2011-10-05 新東工業株式会社 鋳物砂再生装置
CN103912528B (zh) * 2014-03-31 2016-08-31 金东纸业（江苏）股份有限公司 碳酸钙干磨液压系统及其控制方法
CN109174323A (zh) * 2018-08-09 2019-01-11 芜湖市昌瑞金属粉末有限公司 一种金属小块研磨装置
CN114602609B (zh) * 2022-04-02 2023-03-21 天津水泥工业设计研究院有限公司 一种立式磨辊用挡料板的设计方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2424065A1 (fr) * 1978-04-24 1979-11-23 Stein Industrie Perfectionnement aux broyeurs a cuve tournante et a galets pendulaires
DE3061720D1 (en) * 1979-03-19 1983-03-03 Smidth & Co As F L Roller mill and method of operation
FR2464750A2 (fr) * 1979-09-12 1981-03-20 Stein Industrie Perfectionnement aux broyeurs a cuve tournante et a galets pendulaires
US4372496A (en) * 1980-10-01 1983-02-08 Combustion Engineering, Inc. Electronic controller of hydraulic pressure for journal loading of bowl mill

Also Published As

Publication number Publication date
DE3361842D1 (en) 1986-02-27
EP0096852A1 (fr) 1983-12-28
FR2528325A1 (fr) 1983-12-16
CA1190908A (fr) 1985-07-23
ATE17447T1 (de) 1986-02-15
ZA834312B (en) 1984-03-28
FR2528325B1 (enrdf_load_stackoverflow) 1984-11-30
JPS594451A (ja) 1984-01-11
JPH0137972B2 (enrdf_load_stackoverflow) 1989-08-10

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