GB1259603A - - Google Patents

Info

Publication number
GB1259603A
GB1259603A GB1527168A GB1259603DA GB1259603A GB 1259603 A GB1259603 A GB 1259603A GB 1527168 A GB1527168 A GB 1527168A GB 1259603D A GB1259603D A GB 1259603DA GB 1259603 A GB1259603 A GB 1259603A
Authority
GB
United Kingdom
Prior art keywords
shaft
gases
charge
soaking
zone
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
GB1527168A
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 filed Critical
Publication of GB1259603A publication Critical patent/GB1259603A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/005—Shaft or like vertical or substantially vertical furnaces wherein no smelting of the charge occurs, e.g. calcining or sintering furnaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

1,259,603. Shaft furnaces. J. W. MIDDLEMAS, and E. C. JOPE.. 24 March, 1969 [29 March, 1968], No. 15271/68. Heading F4B. A vertical shaft calcining kiln comprises a "preheat soaking- zone" in which preheated charge is allowed to acquire thermal equilibrium, the zone being by-passed by at least one gas passage, which gas passage is provided in the wall defining the shaft to allow heat exchange to occur between gases flowing through the passage and material in the shaft. Small stone limestone dolomite or gypsum is fed through hoppers 17 to the twin rectangular or elliptical sectioned shafts 10, 11. The charge is preheated to 830‹ by gas passing through the passages 36, 43, thus by-passing the preheat soaking zone 57-57. After "soaking", the charge is calcined by the combustion gases of heavy oil burners 25. Temperature throughout the kiln may be controlled by air or waste furnace gases through the ducts 18, 20, 24, 26, 27, 33 and 42 and by controlling the flow of furnace gas from one shaft to the other through the channels 36. Preferably the gases are drawn alternately through the preheating regions of the two shafts.
GB1527168A 1968-03-29 1968-03-29 Expired GB1259603A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1527168 1968-03-29

Publications (1)

Publication Number Publication Date
GB1259603A true GB1259603A (en) 1972-01-05

Family

ID=10056087

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1527168A Expired GB1259603A (en) 1968-03-29 1968-03-29

Country Status (5)

Country Link
US (1) US3601377A (en)
CA (1) CA940706A (en)
DE (1) DE1915781B2 (en)
FR (1) FR2005064A1 (en)
GB (1) GB1259603A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4120644A (en) * 1976-03-31 1978-10-17 Jgc Corporation Apparatus for regeneration of spent active carbon
US4534731A (en) * 1982-07-12 1985-08-13 Maerz Ofenbau Ag Process and apparatus for calcining limestone

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4147504A (en) * 1974-06-12 1979-04-03 Unitika Limited Apparatus for regenerating activated carbon
US9600068B2 (en) 2013-03-13 2017-03-21 Sony Interactive Entertainment Inc. Digital inter-pupillary distance adjustment
CN111233351B (en) * 2020-03-10 2023-12-01 中冶京诚工程技术有限公司 Double-hearth kiln and calcination method
CN214223108U (en) * 2020-10-28 2021-09-17 杭州正隆环保科技有限公司 Material feeder
CN114700349B (en) * 2022-04-07 2023-06-09 广西产研院智慧农业研究院有限公司 Biofuel shaft kiln, red mud magnetizing device and red mud magnetizing method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650814A (en) * 1949-11-23 1953-09-01 Ernest Newell & Company Ltd Kiln
DE1124863B (en) * 1954-05-22 1962-03-01 Polysius Gmbh Shaft furnace that can be heated by means of a burner for burning cement and similar goods
FR1289478A (en) * 1961-01-04 1962-04-06 Fives Lille Cail temperature exchanger between solids and gas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4120644A (en) * 1976-03-31 1978-10-17 Jgc Corporation Apparatus for regeneration of spent active carbon
US4534731A (en) * 1982-07-12 1985-08-13 Maerz Ofenbau Ag Process and apparatus for calcining limestone

Also Published As

Publication number Publication date
DE1915781A1 (en) 1971-01-28
CA940706A (en) 1974-01-29
US3601377A (en) 1971-08-24
FR2005064A1 (en) 1969-12-05
DE1915781B2 (en) 1971-06-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee