GB927876A - Improved mechanical air classifier - Google Patents

Improved mechanical air classifier

Info

Publication number
GB927876A
GB927876A GB36282/60A GB3628260A GB927876A GB 927876 A GB927876 A GB 927876A GB 36282/60 A GB36282/60 A GB 36282/60A GB 3628260 A GB3628260 A GB 3628260A GB 927876 A GB927876 A GB 927876A
Authority
GB
United Kingdom
Prior art keywords
zone
classifier
flow
classifying
oct
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
GB36282/60A
Inventor
Geoffrey Daniel Humphreys
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.)
Associated Portland Cement Manufacturers Ltd
Original Assignee
Associated Portland Cement Manufacturers Ltd
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 Associated Portland Cement Manufacturers Ltd filed Critical Associated Portland Cement Manufacturers Ltd
Priority to GB36282/60A priority Critical patent/GB927876A/en
Priority to US145810A priority patent/US3237766A/en
Publication of GB927876A publication Critical patent/GB927876A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force

Landscapes

  • Combined Means For Separation Of Solids (AREA)

Abstract

927,876. Centrifugal separators. ASSOCIATED PORTLAND CEMENT MANUFACTURERS Ltd. Oct. 20, 1961 [Oct. 21, 1960], No. 36282/60. Class 23. In a classifier the particles are classified in a rotary classifying zone 15, 22 through which the air flows inwardly and in which the flow crosssectional area vaires inversely as the radius and the air flow prior to entering the classifying zone is approximately parallel to the axis of rotation of the zone. In the double cone classifier shown in Fig. 2, the zone 15 is formed between rotary plates 12, 13 enclosing radial blades 14 and the rate of air flow is adjustable by a sleeve 16 controlling openings 6 and movable vertically by screws 17 operated by handles 18. The inlet 21 of the classifier shown in Fig. 3 receives the flow from a grinding-mill, the oversized particles rejected from the zone 22 being discharged by a return conduit 23 and the fine particles passing through the zone being discharged through a duct 24 which may be connected to firing equipment. In a modification, Fig. 4 (not shown), the upper plate is axially adjustable to vary the effective height of the classifying zone.
GB36282/60A 1960-10-21 1960-10-21 Improved mechanical air classifier Expired GB927876A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB36282/60A GB927876A (en) 1960-10-21 1960-10-21 Improved mechanical air classifier
US145810A US3237766A (en) 1960-10-21 1961-10-18 Mechanical air classifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36282/60A GB927876A (en) 1960-10-21 1960-10-21 Improved mechanical air classifier

Publications (1)

Publication Number Publication Date
GB927876A true GB927876A (en) 1963-06-06

Family

ID=10386685

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36282/60A Expired GB927876A (en) 1960-10-21 1960-10-21 Improved mechanical air classifier

Country Status (2)

Country Link
US (1) US3237766A (en)
GB (1) GB927876A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3303078C1 (en) * 1983-01-29 1984-05-30 Alpine Ag, 8900 Augsburg Air classifier for the fine area
EP0171987A2 (en) * 1984-08-13 1986-02-19 F.L. Smidth & Co. A/S Separator for sorting particulate material
US4786406A (en) * 1985-03-13 1988-11-22 Alpine Aktiengesellschaft Particle classifier with wear-resistant classifier wheel
DE10151325B4 (en) * 2001-10-17 2006-07-27 Wester Tonbergbau Kg air classifier

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334741A (en) * 1966-05-10 1967-08-08 Douglas Aircraft Co Inc Rotary flow classifier
DE1297446B (en) * 1966-12-29 1969-06-12 Pfeiffer Barbarossawerke Circulating air separator
FR2580195B1 (en) * 1985-04-10 1987-07-10 Hippert Pierre PNEUMATIC SELECTOR
US4818376A (en) * 1986-04-28 1989-04-04 Onoda Cement Company, Ltd. Leakage prevention apparatus for a classifier
US5252110A (en) * 1990-08-01 1993-10-12 Roland Nied Preferably vertical air separator
US5899396A (en) * 1995-09-04 1999-05-04 Nied; Roland Air separator and single-rotor air separator mill with such an air separator
GB9827670D0 (en) * 1998-12-17 1999-02-10 Erozlu Metin Classifier
US6290071B1 (en) * 1999-12-21 2001-09-18 General Steel And Supply Company Air separator system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899139A (en) * 1959-08-11 Method and apparatus for concentrating and classifying material
US2276761A (en) * 1937-02-15 1942-03-17 Ici Ltd Apparatus for the classification of material
US2286987A (en) * 1940-12-24 1942-06-16 Sturtevant Mill Co Air separator
NL74216C (en) * 1948-04-24
US2796173A (en) * 1955-05-09 1957-06-18 Sharples Corp Classification process and apparatus
US2922520A (en) * 1957-03-08 1960-01-26 Bahco Ab Centrifugal wind classifiers

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3303078C1 (en) * 1983-01-29 1984-05-30 Alpine Ag, 8900 Augsburg Air classifier for the fine area
EP0115057A2 (en) * 1983-01-29 1984-08-08 Alpine Aktiengesellschaft Pneumatic separator in the field of fine material
EP0115057A3 (en) * 1983-01-29 1985-10-30 Alpine Aktiengesellschaft Pneumatic separator in the field of fine material
EP0171987A2 (en) * 1984-08-13 1986-02-19 F.L. Smidth & Co. A/S Separator for sorting particulate material
EP0171987A3 (en) * 1984-08-13 1987-03-04 F.L. Smidth & Co. A/S Separator for sorting particulate material
US4786406A (en) * 1985-03-13 1988-11-22 Alpine Aktiengesellschaft Particle classifier with wear-resistant classifier wheel
DE3508889C1 (en) * 1985-03-13 1992-02-20 Alpine Ag, 8900 Augsburg Air classifier with wear-free classifying wheel
DE10151325B4 (en) * 2001-10-17 2006-07-27 Wester Tonbergbau Kg air classifier

Also Published As

Publication number Publication date
US3237766A (en) 1966-03-01

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