EP0096852A1 - Rotierende Schüsselmühle - Google Patents

Rotierende Schüsselmühle Download PDF

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Publication number
EP0096852A1
EP0096852A1 EP83105662A EP83105662A EP0096852A1 EP 0096852 A1 EP0096852 A1 EP 0096852A1 EP 83105662 A EP83105662 A EP 83105662A EP 83105662 A EP83105662 A EP 83105662A EP 0096852 A1 EP0096852 A1 EP 0096852A1
Authority
EP
European Patent Office
Prior art keywords
mill
indicating
height
layer
tank
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
Application number
EP83105662A
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English (en)
French (fr)
Other versions
EP0096852B1 (de
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.)
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Publication date
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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(A1) "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/de
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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
    • 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 height of the layer of material between the pressing members and the tank and a member indicating the pressure of the hydraulic fluid in the jacks.
  • Patent application FR-A * 2424065 of the applicant describes mills with a rotating tank of vertical axis and rollers with pendular suspension and pressed against the material to be ground by hydraulic jacks, with adjustment and control circuit making it possible to modify the pressure of the rollers as a function of the material to be ground or according to a predetermined law during grinding, comprising members indicating the pressure and position of the jacks, and a device for regulating the pressure of the jacks, sensitive to the data supplied by the members indicators, setting the pressure of the cylinders according to the material to be ground and possibly according to a predetermined law.
  • 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 its operation, and which therefore avoids any incident and any stopping of its progress when it is supplied with a material of characteristics varying over time.
  • the crusher according to the invention is characterized in that it further comprises a member indicating the power absorbed by the crusher, a member indicating the flow of material introduced into the crusher, and means sensitive to the data of the indicator members for maintaining a variation of the height as a function of the flow rate of the mill according to a predetermined law.
  • the predetermined law for adjusting the height of the material layer is preferably linear 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 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 by means of 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 crusher which has just been described with reference to FIG. 1 of the drawing appears to be the preferable embodiment of the invention, it will be understood that various modifications can be made to it without departing from its general framework, certain of its organs can be replaced by others who would play the same technical role.
  • the grinding rollers could be replaced by rollers, balls, etc.
  • the supply of the coal mill could be carried out otherwise 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.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
EP83105662A 1982-06-14 1983-06-09 Rotierende Schüsselmühle Expired EP0096852B1 (de)

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
FR8210312 1982-06-14
FR8210312A FR2528325A1 (fr) 1982-06-14 1982-06-14 Broyeur a cuve tournante

Publications (2)

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

Family

ID=9274962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105662A Expired EP0096852B1 (de) 1982-06-14 1983-06-09 Rotierende Schüsselmühle

Country Status (7)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0647489A1 (de) * 1993-09-24 1995-04-12 Sintokogio Ltd. Vorrichtung zum Entfernen von an sand haftendem Material
ES2261038A1 (es) * 2004-10-15 2006-11-01 Horst Lutzow Maquina trituradora integral.
EP2221129A4 (de) * 2007-12-07 2012-03-28 Sintokogio Ltd Vorrichtung zur regenerierung von formsand

Families Citing this family (7)

* 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 (de) * 1987-08-25 1989-03-01
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

Citations (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
EP0017342A1 (de) * 1979-03-19 1980-10-15 F.L. Smidth & Co. A/S Rollenmühle und Verfahren zum Betrieb
FR2464750A2 (fr) * 1979-09-12 1981-03-20 Stein Industrie Perfectionnement aux broyeurs a cuve tournante et a galets pendulaires
EP0048787A2 (de) * 1980-10-01 1982-04-07 Combustion Engineering, Inc. Elektronische Kontrollvorrichtung für den hydraulischen Druck der Achszapfenbelastung einer Federrollenmühle

Patent Citations (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
EP0017342A1 (de) * 1979-03-19 1980-10-15 F.L. Smidth & Co. A/S Rollenmühle und Verfahren zum Betrieb
FR2464750A2 (fr) * 1979-09-12 1981-03-20 Stein Industrie Perfectionnement aux broyeurs a cuve tournante et a galets pendulaires
EP0048787A2 (de) * 1980-10-01 1982-04-07 Combustion Engineering, Inc. Elektronische Kontrollvorrichtung für den hydraulischen Druck der Achszapfenbelastung einer Federrollenmühle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0647489A1 (de) * 1993-09-24 1995-04-12 Sintokogio Ltd. Vorrichtung zum Entfernen von an sand haftendem Material
CN1043315C (zh) * 1993-09-24 1999-05-12 新东工业株式会社 从砂上清除附着物的装置
ES2261038A1 (es) * 2004-10-15 2006-11-01 Horst Lutzow Maquina trituradora integral.
ES2261038B1 (es) * 2004-10-15 2007-11-16 Horst Lutzow Maquina trituradora integral.
EP2221129A4 (de) * 2007-12-07 2012-03-28 Sintokogio Ltd Vorrichtung zur regenerierung von formsand

Also Published As

Publication number Publication date
FR2528325B1 (de) 1984-11-30
JPH0137972B2 (de) 1989-08-10
JPS594451A (ja) 1984-01-11
EP0096852B1 (de) 1986-01-15
FR2528325A1 (fr) 1983-12-16
ZA834312B (en) 1984-03-28
DE3361842D1 (en) 1986-02-27
CA1190908A (fr) 1985-07-23
ATE17447T1 (de) 1986-02-15

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