GB1208249A - Improvements in grinding systems - Google Patents

Improvements in grinding systems

Info

Publication number
GB1208249A
GB1208249A GB2231369A GB2231369A GB1208249A GB 1208249 A GB1208249 A GB 1208249A GB 2231369 A GB2231369 A GB 2231369A GB 2231369 A GB2231369 A GB 2231369A GB 1208249 A GB1208249 A GB 1208249A
Authority
GB
United Kingdom
Prior art keywords
separator
grinding
fed
cement
controlled
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
GB2231369A
Inventor
Claus Modeweg-Hansen
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.)
FLSmidth and Co AS
Original Assignee
FLSmidth and Co AS
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 FLSmidth and Co AS filed Critical FLSmidth and Co AS
Priority to GB2231369A priority Critical patent/GB1208249A/en
Publication of GB1208249A publication Critical patent/GB1208249A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • 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

Abstract

1,208,249. Controlling feed to grinding mills; grinding cement; tube mills. F. L. SMIDTH & CO. A.S. 1 May, 1969, No. 22313/69. Headings B2A. A grinding system, particularly for cement, is controlled by determining the circulation figure C which equals S/F where S is a separator fed and F the fire fraction from the separator, per unit time. The separator feed or fine or course fractions are determined by at least two radioactive type detectors, and the signals combined to give C. The system comprises a tube mill I fed by a weighing band the output being supplied via an elevator 4 to a separator 5. Measurement of S takes place at 10. Coarse material is recirculated at G. Fines are measured at 11. The mill is dedusted via a pipe 7, and dustfraction E after precipitation in an electro-filter 8 is mixed with the fraction F. A screw 12 takes a small sample to a specific surface meter 13. The separator 5 is controlled by adjustable louvre dampers to maintain an optimum value of C, in response to the signals derived at 10, 11 and the meter 13 signal (which is representative of fineness) controls the fresh feed rate P.
GB2231369A 1969-05-01 1969-05-01 Improvements in grinding systems Expired GB1208249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2231369A GB1208249A (en) 1969-05-01 1969-05-01 Improvements in grinding systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2231369A GB1208249A (en) 1969-05-01 1969-05-01 Improvements in grinding systems

Publications (1)

Publication Number Publication Date
GB1208249A true GB1208249A (en) 1970-10-07

Family

ID=10177370

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2231369A Expired GB1208249A (en) 1969-05-01 1969-05-01 Improvements in grinding systems

Country Status (1)

Country Link
GB (1) GB1208249A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2326977A1 (en) * 1975-10-10 1977-05-06 Metallgesellschaft Ag PROCESS FOR DRY CRUSHING OF ORES UP TO A DEGREE OF FINENESS SUITABLE FOR AGGLOMERATION AND PRODUCTS OBTAINED FOLLOWING THIS PROCESS
FR2495960A1 (en) * 1980-12-16 1982-06-18 Babcock Krauss Maffei Ind Mill discharge quantity control device - uses control of ground material carrying air stream control in dependence on measured material flow
EP0542043A1 (en) * 1991-11-12 1993-05-19 Krupp Polysius Ag Method for controlling a closed circuit grinding plant
WO2020091821A1 (en) * 2018-11-02 2020-05-07 Gcp Applied Technologies, Inc Cement production
CN116727069A (en) * 2022-12-29 2023-09-12 略阳县豫都炉料有限公司 Processing system and method for recycling dedusting ash

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2326977A1 (en) * 1975-10-10 1977-05-06 Metallgesellschaft Ag PROCESS FOR DRY CRUSHING OF ORES UP TO A DEGREE OF FINENESS SUITABLE FOR AGGLOMERATION AND PRODUCTS OBTAINED FOLLOWING THIS PROCESS
FR2495960A1 (en) * 1980-12-16 1982-06-18 Babcock Krauss Maffei Ind Mill discharge quantity control device - uses control of ground material carrying air stream control in dependence on measured material flow
EP0542043A1 (en) * 1991-11-12 1993-05-19 Krupp Polysius Ag Method for controlling a closed circuit grinding plant
WO2020091821A1 (en) * 2018-11-02 2020-05-07 Gcp Applied Technologies, Inc Cement production
CN116727069A (en) * 2022-12-29 2023-09-12 略阳县豫都炉料有限公司 Processing system and method for recycling dedusting ash
CN116727069B (en) * 2022-12-29 2023-11-10 略阳县豫都炉料有限公司 Processing system and method for recycling dedusting ash

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees