ES2011924A6 - Method for controlling a wood grinder - Google Patents

Method for controlling a wood grinder

Info

Publication number
ES2011924A6
ES2011924A6 ES8803737A ES8803737A ES2011924A6 ES 2011924 A6 ES2011924 A6 ES 2011924A6 ES 8803737 A ES8803737 A ES 8803737A ES 8803737 A ES8803737 A ES 8803737A ES 2011924 A6 ES2011924 A6 ES 2011924A6
Authority
ES
Spain
Prior art keywords
wood
limit value
control
grinder
trough
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 - Fee Related
Application number
ES8803737A
Other languages
Spanish (es)
Inventor
Friedrich-Wilhe Stolze
Hans-Otto Hemrich
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.)
JM Voith GmbH
Original Assignee
JM Voith GmbH
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
Application filed by JM Voith GmbH filed Critical JM Voith GmbH
Publication of ES2011924A6 publication Critical patent/ES2011924A6/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/14—Disintegrating in mills
    • D21B1/18—Disintegrating in mills in magazine-type machines
    • D21B1/20—Disintegrating in mills in magazine-type machines with chain feed
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/14—Disintegrating in mills
    • D21B1/26—Driving or feeding arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Paper (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Crushing And Grinding (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Automatic Disk Changers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)

Abstract

The grinder control includes reducing the level of stuff in the trough, if necessary in steps, thus to a minimum value of the trough stuff level, if upper limit value is overshot. If the current consumption of the drive motor of the wood feed undershoots the lower limit value, the procedure is reversed. In this way, as far as to undershoot an upper limit value of the current consumption of the drive motor of the wood feed and down control is achieved with respect to the specific work requirement of the wood grinder, so that there exists a coupling of stone drive power and wood feed drive power. By means of the measures according to the invention, better stability of the control process with respect to the control of unstable processes is achieved in the grinding of wood.
ES8803737A 1987-12-10 1988-12-09 Method for controlling a wood grinder Expired - Fee Related ES2011924A6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873741804 DE3741804A1 (en) 1987-12-10 1987-12-10 Method for controlling a wood grinder

Publications (1)

Publication Number Publication Date
ES2011924A6 true ES2011924A6 (en) 1990-02-16

Family

ID=6342261

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8803737A Expired - Fee Related ES2011924A6 (en) 1987-12-10 1988-12-09 Method for controlling a wood grinder

Country Status (9)

Country Link
AT (1) AT392495B (en)
BE (1) BE1001940A6 (en)
BR (1) BR8806100A (en)
CH (1) CH676687A5 (en)
DE (1) DE3741804A1 (en)
ES (1) ES2011924A6 (en)
FI (1) FI84733C (en)
NO (1) NO170094C (en)
SE (1) SE465468B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3693891A (en) * 1971-06-24 1972-09-26 Norton S Remmer Wood grinding
DE3325049C2 (en) * 1983-05-20 1985-03-14 J.M. Voith Gmbh, 7920 Heidenheim Method and device for controlling a wood grinder
FI69882C (en) * 1985-01-25 1986-12-31 Tampella Oy Ab FOERFARANDE FOER REGLERING AV SLIPPROCESSEN I EN UGNSLIPMASKIN.

Also Published As

Publication number Publication date
NO885488D0 (en) 1988-12-09
FI84733B (en) 1991-09-30
NO170094B (en) 1992-06-01
AT392495B (en) 1991-04-10
CH676687A5 (en) 1991-02-28
SE8804367D0 (en) 1988-12-02
SE8804367L (en) 1989-06-11
DE3741804A1 (en) 1989-06-22
FI84733C (en) 1992-01-10
NO885488L (en) 1989-06-12
BR8806100A (en) 1989-08-08
ATA255388A (en) 1990-09-15
NO170094C (en) 1992-09-09
FI885539A (en) 1989-06-11
SE465468B (en) 1991-09-16
BE1001940A6 (en) 1990-04-17
FI885539A0 (en) 1988-11-29
DE3741804C2 (en) 1990-04-26

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Legal Events

Date Code Title Description
SA6 Expiration date (snapshot 920101)

Free format text: 2008-12-09

FD1A Patent lapsed

Effective date: 20010301