GB1148358A - Method for controlling screening and grinding plants - Google Patents

Method for controlling screening and grinding plants

Info

Publication number
GB1148358A
GB1148358A GB48260/67A GB4826067A GB1148358A GB 1148358 A GB1148358 A GB 1148358A GB 48260/67 A GB48260/67 A GB 48260/67A GB 4826067 A GB4826067 A GB 4826067A GB 1148358 A GB1148358 A GB 1148358A
Authority
GB
United Kingdom
Prior art keywords
grinding chamber
coarse
motor
grinding
coarse grinding
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
GB48260/67A
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Polysius AG
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 Polysius AG filed Critical Polysius AG
Publication of GB1148358A publication Critical patent/GB1148358A/en
Expired legal-status Critical Current

Links

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
    • B02C25/00—Control arrangements specially adapted for crushing or disintegrating
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/40—Regulating or controlling the amount of current drawn or delivered by the motor for controlling the mechanical load

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Power Engineering (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Grinding (AREA)

Abstract

1,148,358. Automatic control of grinding. POLYSIUS G.m.b.H. Oct. 24, 1967 [Jan. 11, 1967], No.48260/67. Heading G3R. [Also in Division B2] In a grinding plant, material, passed through coarse and fine grinding chambers, is screened and the grit returned for re-grinding to the two chambers in proportions which are varied automatically if the noise in the coarse grinding chamber is above or below predetermined limits, the rate of supply of fresh material also being automatically controlled by the noise in the coarse grinding chamber. As shown, a feeder 9 driven by a motor 10 supplies material to a grinder 1 having a coarse grinding chamber 2 and a fine grinding chamber 3, the ground material being transported by a bucket-conveyer 4 to screens 5 and 6 supplying finished material at 7. Grit is returned from screen 6 to the fine grinding chamber 3 while that from screen 5 is apportioned between the fine and coarse grinding chambers in dependence on the setting of a distribution valve operated by a motor 8. The rate of supply of ground material by conveyer 4 is maintained constant by comparing the power supplied to its driving motor 15, as measured at 16, with a reference value at 14 so that any difference is effective to alter at 11 the level of sound maintained constant in the coarse grinding chamber by a microphone 12 controlling the speed of feed motor 10. Deviations in the output of microphone 12 beyond predetermined limits determined by a dead band unit 18 are effective to adjust the position of the distribution valve controlled by motor 8 so as to prevent overloading or underloading of the coarse grinding chamber. Grit output instead of grinder output may control the sound level.
GB48260/67A 1967-01-11 1967-10-24 Method for controlling screening and grinding plants Expired GB1148358A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP0041188 1967-01-11

Publications (1)

Publication Number Publication Date
GB1148358A true GB1148358A (en) 1969-04-10

Family

ID=7377635

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48260/67A Expired GB1148358A (en) 1967-01-11 1967-10-24 Method for controlling screening and grinding plants

Country Status (5)

Country Link
BE (1) BE709192A (en)
DE (1) DE1607560B1 (en)
ES (1) ES346753A1 (en)
FR (1) FR1549934A (en)
GB (1) GB1148358A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102962121A (en) * 2012-11-30 2013-03-13 大连隆星新材料有限公司 Automatic temperature and humidity control device for artware wax forming machine
CN103721832A (en) * 2013-11-15 2014-04-16 中冶北方（大连）工程技术有限公司 High-pressure grinding roll control system with offcut return function
CN105057079A (en) * 2015-08-10 2015-11-18 中国黄金集团内蒙古矿业有限公司 Control system and control method of ore grinding ore granularity

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443270A1 (en) * 1978-12-04 1980-07-04 Commissariat Energie Atomique METHOD FOR REGENERATING A COLD TRAP FOR LIQUID METALS AND DEVICE FOR CARRYING OUT SAID METHOD
FR2525922B1 (en) * 1982-05-03 1985-10-11 Stein Industrie METHOD AND DEVICE FOR ADJUSTING THE OPERATION OF A GRINDING APPARATUS
DE4137199A1 (en) * 1991-11-12 1993-05-13 Krupp Polysius Ag METHOD FOR CONTROLLING A CIRCULATING MACHINE

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1194231B (en) * 1961-08-21 1965-06-03 Polysius Gmbh Procedure for regulating classifier grinding systems

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102962121A (en) * 2012-11-30 2013-03-13 大连隆星新材料有限公司 Automatic temperature and humidity control device for artware wax forming machine
CN103721832A (en) * 2013-11-15 2014-04-16 中冶北方（大连）工程技术有限公司 High-pressure grinding roll control system with offcut return function
CN103721832B (en) * 2013-11-15 2015-05-27 中冶北方（大连）工程技术有限公司 High-pressure grinding roll control system with offcut return function
CN105057079A (en) * 2015-08-10 2015-11-18 中国黄金集团内蒙古矿业有限公司 Control system and control method of ore grinding ore granularity
CN105057079B (en) * 2015-08-10 2018-05-08 中国黄金集团内蒙古矿业有限公司 Ore grinding ore grain size control system and control method

Also Published As

Publication number Publication date
ES346753A1 (en) 1968-12-16
BE709192A (en) 1968-05-16
FR1549934A (en) 1968-12-13
DE1607560B1 (en) 1970-01-15

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