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FR2329959A1 - Calcination furnace with tapering cross-section - incorporates pyramidal part, reducing risk of hot points and fusion of charge - Google Patents

Calcination furnace with tapering cross-section - incorporates pyramidal part, reducing risk of hot points and fusion of charge

Info

Publication number
FR2329959A1
FR2329959A1 FR7532851A FR7532851A FR2329959A1 FR 2329959 A1 FR2329959 A1 FR 2329959A1 FR 7532851 A FR7532851 A FR 7532851A FR 7532851 A FR7532851 A FR 7532851A FR 2329959 A1 FR2329959 A1 FR 2329959A1
Authority
FR
France
Prior art keywords
section
outlet
fusion
charge
calcination furnace
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.)
Granted
Application number
FR7532851A
Other languages
French (fr)
Other versions
FR2329959B3 (en
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
Application filed by Fives Cail Babcock SA filed Critical Fives Cail Babcock SA
Priority to FR7532851A priority Critical patent/FR2329959A1/en
Publication of FR2329959A1 publication Critical patent/FR2329959A1/en
Application granted granted Critical
Publication of FR2329959B3 publication Critical patent/FR2329959B3/fr
Granted 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
    • F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
    • 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
    • C04B7/434—Preheating with addition of fuel, e.g. calcining

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Abstract

A calcination furnace has a cylindrical part at one end with a tangential entry for particles of material for treatment in suspension in a gas stream, and an outlet at the other end. The sectional area of the outlet is less than that of the cylindrical part and the outlet is at the end of a part progressively decreasing in cross-sectional area. There is an inlet for combustible in the cylindrical part. The part progressively decreasing in area incorporates a section of a pyramid with its large end connected to the circular section of the furnace by a conical section. There are injectors for combustible near the angles of the pyramidal part and near to the place where the pyramidal part is connected to the conical part. The small end of the pyramidal part is connected by a flared part to an outlet duct. Arrangement prevents the formation of hot points where there is a risk of incipient fusion which could cause the particles to agglomerate and deposit on the walls.
FR7532851A 1975-10-28 1975-10-28 Calcination furnace with tapering cross-section - incorporates pyramidal part, reducing risk of hot points and fusion of charge Granted FR2329959A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7532851A FR2329959A1 (en) 1975-10-28 1975-10-28 Calcination furnace with tapering cross-section - incorporates pyramidal part, reducing risk of hot points and fusion of charge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7532851A FR2329959A1 (en) 1975-10-28 1975-10-28 Calcination furnace with tapering cross-section - incorporates pyramidal part, reducing risk of hot points and fusion of charge

Publications (2)

Publication Number Publication Date
FR2329959A1 true FR2329959A1 (en) 1977-05-27
FR2329959B3 FR2329959B3 (en) 1979-09-14

Family

ID=9161711

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7532851A Granted FR2329959A1 (en) 1975-10-28 1975-10-28 Calcination furnace with tapering cross-section - incorporates pyramidal part, reducing risk of hot points and fusion of charge

Country Status (1)

Country Link
FR (1) FR2329959A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005519019A (en) * 2002-03-07 2005-06-30 エフ エル スミス アクチェセルスカプ Cement clinker manufacturing method and manufacturing plant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005519019A (en) * 2002-03-07 2005-06-30 エフ エル スミス アクチェセルスカプ Cement clinker manufacturing method and manufacturing plant

Also Published As

Publication number Publication date
FR2329959B3 (en) 1979-09-14

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Legal Events

Date Code Title Description
ST Notification of lapse