GB1285736A - Method for automatic regulation of a grinding mill with circulating material and arrangement for execution of this method - Google Patents

Method for automatic regulation of a grinding mill with circulating material and arrangement for execution of this method

Info

Publication number
GB1285736A
GB1285736A GB48340/69A GB4834069A GB1285736A GB 1285736 A GB1285736 A GB 1285736A GB 48340/69 A GB48340/69 A GB 48340/69A GB 4834069 A GB4834069 A GB 4834069A GB 1285736 A GB1285736 A GB 1285736A
Authority
GB
United Kingdom
Prior art keywords
rate
coarse
feed
flow
fine
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
GB48340/69A
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.)
Vyzk Ustav Stavebnich Hmot V B
Vyzkumny Ustav Stavebnich Hmot
Original Assignee
Vyzk Ustav Stavebnich Hmot V B
Vyzkumny Ustav Stavebnich Hmot
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 Vyzk Ustav Stavebnich Hmot V B, Vyzkumny Ustav Stavebnich Hmot filed Critical Vyzk Ustav Stavebnich Hmot V B
Publication of GB1285736A publication Critical patent/GB1285736A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
    • B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone

Landscapes

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

Abstract

1285736 Automatic proportioning control VYZKUMNY USTAV STAVEBNICH HMOT V BRNE 1 Oct 1969 [24 Oct 1968] 48340/68 Heading G3R The output of a grinding mill is supplied to a classifier and the ratio of the coarse to fine output or the ratio of the coarse or fine output to input of the classifer is used to control the rate of feed of raw material to the mill. In Fig.2, a device 12 controls the rate of feed of fresh material, e.g. cement, to a grinding mill 14 which includes a classifier (not shown) to produce an output of fine material J and return coarse material H to the mill input. The ratio of the rates of flow of coarse and fine material is measured at 17 and compared with a desired rate of flow, set at 20, so that any difference is effective through a proportional and integral regulator 10 and a proportional regulator 11 to eliminate error by automatically controlling at 12 the rate of feed of fresh material to the mill. A control term dependent on the difference between the rate of feed of fresh material and the rate of flow of fine material is produced at 18 and applied to the input of PI regulator 10. A further term, dependent on the sum of the rate of feed of fresh material and the rate of flow of coarse material is produced at 19 and applied to the input of P regulator 11. The ratio of the rate of feed to the classifier to the rate of flow of coarse or fine material may be substituted for the primary control in dependence on the ratio of the rates of flow of coarse and fine material.
GB48340/69A 1968-10-24 1969-10-01 Method for automatic regulation of a grinding mill with circulating material and arrangement for execution of this method Expired GB1285736A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS732168 1968-10-24

Publications (1)

Publication Number Publication Date
GB1285736A true GB1285736A (en) 1972-08-16

Family

ID=5422122

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48340/69A Expired GB1285736A (en) 1968-10-24 1969-10-01 Method for automatic regulation of a grinding mill with circulating material and arrangement for execution of this method

Country Status (6)

Country Link
US (1) US3630457A (en)
AT (1) AT300526B (en)
BE (1) BE738342A (en)
DE (1) DE1940200A1 (en)
FR (1) FR2021426A1 (en)
GB (1) GB1285736A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7014936A (en) * 1970-10-12 1972-04-14 Koninklijke Hoogovens En Staal
US3783252A (en) * 1972-04-07 1974-01-01 Westinghouse Electric Corp Control system and method for a reversed ball mill grinding circuit
US3860804A (en) * 1972-04-21 1975-01-14 Westinghouse Electric Corp Control system and method for ball mill and spiral classifier in closed circuit
DE2807691B1 (en) * 1978-02-23 1979-04-26 Babcock Krauss Maffei Ind Method and device for regulating the fineness of finished goods from a grinding plant
DE3424277A1 (en) * 1984-07-02 1986-01-09 Claudius Peters Ag, 2000 Hamburg METHOD FOR REGULATING THE OUTPUT PERFORMANCE OF A GRINDING SYSTEM
DE3520069A1 (en) * 1985-06-04 1986-12-04 Krupp Polysius Ag, 4720 Beckum METHOD AND PLANT FOR TWO-STAGE CRUSHING
EP2764923A1 (en) * 2013-02-06 2014-08-13 Siemens Aktiengesellschaft Method for controlling and/or regulating a grinding plant and grinding plant
EP2769769A1 (en) * 2013-02-22 2014-08-27 Siemens Aktiengesellschaft Method for controlling and/or regulating a crushing mill and crushing plant
EP2803416A1 (en) * 2013-05-14 2014-11-19 Siemens Aktiengesellschaft Method for controlling and/or regulating a multi-stage crushing mill and crushing plant

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3094289A (en) * 1959-10-29 1963-06-18 Bolidens Gruv Ab Rock grinding system
US3117734A (en) * 1961-03-17 1964-01-14 Duval Sulphur & Potash Company Method and system for treating ore
DE1281818B (en) * 1965-07-17 1968-10-31 Rheinische Kalksteinwerke Process for the simultaneous grinding of several raw materials with different grindability
US3351293A (en) * 1965-08-23 1967-11-07 Kaiser Ind Corp Grinding mill and method of operation
US3401891A (en) * 1966-10-25 1968-09-17 Gen Electric Control system for a closed circuit grinding system for finish cement

Also Published As

Publication number Publication date
DE1940200A1 (en) 1971-02-25
BE738342A (en) 1970-02-16
US3630457A (en) 1971-12-28
FR2021426A1 (en) 1970-07-24
AT300526B (en) 1972-06-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees