GB1503159A - Installation comprising a pre-calcination chamber for use in the manufacture of cement by a dry process - Google Patents

Installation comprising a pre-calcination chamber for use in the manufacture of cement by a dry process

Info

Publication number
GB1503159A
GB1503159A GB31752/75A GB3175275A GB1503159A GB 1503159 A GB1503159 A GB 1503159A GB 31752/75 A GB31752/75 A GB 31752/75A GB 3175275 A GB3175275 A GB 3175275A GB 1503159 A GB1503159 A GB 1503159A
Authority
GB
United Kingdom
Prior art keywords
cooler
hot
air
hot air
exchanger
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
GB31752/75A
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.)
Fives Cail Babcock SA
Original Assignee
Fives Cail Babcock SA
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
Priority claimed from FR7426713A external-priority patent/FR2283099A1/en
Priority claimed from FR7518213A external-priority patent/FR2314154A1/en
Application filed by Fives Cail Babcock SA filed Critical Fives Cail Babcock SA
Publication of GB1503159A publication Critical patent/GB1503159A/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
    • C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
    • 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
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/2016—Arrangements of preheating devices for the charge
    • F27B7/2025—Arrangements of preheating devices for the charge consisting of a single string of cyclones
    • F27B7/2033—Arrangements of preheating devices for the charge consisting of a single string of cyclones with means for precalcining the raw material

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Furnace Details (AREA)

Abstract

1503159 Cement manufacturing plant; preheating and cooling charges FIVES-CAIL BABCOCK 29 July 1975 [1 Aug 1974 11 June 1975] 31752/75 Heading F4B In a plant for the manufacture of cement, comprising a preheater 14, a precalcination furnace 12, a kiln 10 and a cooler 16, the hot air from the cooler 16 is used to provide secondary air for the kiln and to heat combustion air for the precalcination chamber in an indirect heat exchanger. Hot air from the cooler may be passed through a dust extractor 26, and the hot circuits of heat exchangers 22, 24 before being returned by a fan 20 through the cold circuit of exchanger 22 to the precalcination chamber, Fig. 1. In another embodiment, the air from the cooler is returned to the cooler, and fresh air, heated in an exchanger by the hot air from the cooler, is fed to the precalciner. In a third arrangement, the hot air from the cooler passes through a dust extractor 26, the hot side of heat exchanger 22, and a preheating cyclone 36 with part of the raw meal before being driven by fan 20 through the hot side of exchanger 22 to the precalciner 12, Fig. 2. The hot air from the cooler may be cooled by passage through a waste heat boiler, or by a water spray after the hot circuit of a heat exchanger before reaching a fan which feeds it to the precalciner through the cold circuit of the heat exchanger. The cooling of the part of the hot air from the cooler not required in the kiln enables it to be passed through a fan so that the proportion flowing to the kiln and the calciner may be more readily controlled.
GB31752/75A 1974-08-01 1975-07-29 Installation comprising a pre-calcination chamber for use in the manufacture of cement by a dry process Expired GB1503159A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7426713A FR2283099A1 (en) 1974-08-01 1974-08-01 INSTALLATION FOR THE MANUFACTURING OF CEMENT BY THE DRY METHOD
FR7518213A FR2314154A1 (en) 1975-06-11 1975-06-11 Plant for preheating and calcining cement - using heat exchangers for max. utilisation of hot air obtd. from clinker cooler

Publications (1)

Publication Number Publication Date
GB1503159A true GB1503159A (en) 1978-03-08

Family

ID=26218464

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31752/75A Expired GB1503159A (en) 1974-08-01 1975-07-29 Installation comprising a pre-calcination chamber for use in the manufacture of cement by a dry process

Country Status (9)

Country Link
JP (1) JPS5137917A (en)
BR (1) BR7504876A (en)
CH (1) CH595297A5 (en)
DE (1) DE2533142A1 (en)
DK (1) DK346075A (en)
ES (1) ES439362A1 (en)
GB (1) GB1503159A (en)
IT (1) IT1039768B (en)
OA (1) OA05075A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006980A1 (en) * 1980-02-25 1981-09-10 Krupp Polysius Ag, 4720 Beckum Cement mfg. plant using fluidised bed - where part of air preheated in clinker cooler is used to heat air of combustion carrying precalcined cement flour into bed
WO2015077818A1 (en) * 2013-11-29 2015-06-04 Calix Ltd Process and apparatus for manufacture of portland cement

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204835A (en) * 1978-11-16 1980-05-27 Fuller Company Apparatus for treating solid particulate material
DE3411146A1 (en) * 1984-03-27 1985-10-10 Dyckerhoff Engineering GmbH, 6200 Wiesbaden Process for utilising the excess heat in the preheating of cement raw meal
DE69216564T2 (en) * 1991-11-20 1997-05-15 Mitsubishi Heavy Ind Ltd Process for the production of solid moldings from by-products of lime-gypsum wet desulfurization of exhaust gases

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5056417A (en) * 1973-09-20 1975-05-17

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006980A1 (en) * 1980-02-25 1981-09-10 Krupp Polysius Ag, 4720 Beckum Cement mfg. plant using fluidised bed - where part of air preheated in clinker cooler is used to heat air of combustion carrying precalcined cement flour into bed
WO2015077818A1 (en) * 2013-11-29 2015-06-04 Calix Ltd Process and apparatus for manufacture of portland cement
US10570061B2 (en) 2013-11-29 2020-02-25 Calix Ltd Process for manufacture of Portland cement

Also Published As

Publication number Publication date
ES439362A1 (en) 1977-02-16
BR7504876A (en) 1976-08-03
JPS5137917A (en) 1976-03-30
CH595297A5 (en) 1978-02-15
DE2533142A1 (en) 1976-02-12
DK346075A (en) 1976-02-02
OA05075A (en) 1981-01-31
IT1039768B (en) 1979-12-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee