GB1046962A - A gypsum calciner - Google Patents

A gypsum calciner

Info

Publication number
GB1046962A
GB1046962A GB1539563A GB1539563A GB1046962A GB 1046962 A GB1046962 A GB 1046962A GB 1539563 A GB1539563 A GB 1539563A GB 1539563 A GB1539563 A GB 1539563A GB 1046962 A GB1046962 A GB 1046962A
Authority
GB
United Kingdom
Prior art keywords
gypsum
cylinder
vanes
cylinders
calciner
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
GB1539563A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1046962A publication Critical patent/GB1046962A/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
    • C04B11/00—Calcium sulfate cements
    • C04B11/02—Methods and apparatus for dehydrating gypsum
    • C04B11/028—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained
    • C04B11/036—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained for the dry process, e.g. dehydrating in a fluidised bed or in a rotary kiln, i.e. to obtain beta-hemihydrate
    • 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
    • F27B7/26—Drives
    • 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
    • F27B7/02—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type
    • F27B2007/022—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type the drum having a non-uniform section along its length
    • 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
    • F27B7/22—Rotary drums; Supports therefor
    • F27B2007/2246—Support rollers
    • F27B2007/2273—Support rollers with arrangements, e.g. rollers, to maintain the drum against longitudinal movement
    • 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
    • F27B7/26—Drives
    • F27B2007/261—Drives working with a ring embracing the drum
    • F27B2007/262—A gear ring combined with a dented wheel drive
    • 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
    • F27B7/26—Drives
    • F27B2007/268—Details of the motor or the pinions
    • 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
    • F27B7/32—Arrangement of devices for charging

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)

Abstract

<PICT:1046962/C1/1> A gypsum calciner comprises a rotary assembly including concentric cylinders 1, 2 (Fig. 1), gypsum being passed, in countercurrent to air and combustion gases, through a path including the annular space between the cylinders, and the inner cylinder, the assembly having controllable exits for example 9, 18, at different positions for removal of calcined gypsum of different grades. Gypsum minerals entering at 12 (Fig. 3, not shown) drop into the space between the widened ends 4, 5 of cylinders 1 and 2 and vanes or ribs 19 and 20 move the material along downwardly sloping cylinder 1. Inclined vanes 21 lift the material into cylinder 2 and vanes 22, 23 transport it towards the widened end 5 of cylinder 2. The material passes through aperture 15 into combustion chamber 6 heated by a device for example an oil burner or pulverised coal burner in casing 26. Material not removed by adjustable apertures 8, 18 leaves the calciner at 24. Combustion gases leave at 11.
GB1539563A 1962-04-18 1963-04-18 A gypsum calciner Expired GB1046962A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES27687562 1962-04-18

Publications (1)

Publication Number Publication Date
GB1046962A true GB1046962A (en) 1966-10-26

Family

ID=8428857

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1539563A Expired GB1046962A (en) 1962-04-18 1963-04-18 A gypsum calciner

Country Status (2)

Country Link
DE (1) DE1433860A1 (en)
GB (1) GB1046962A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2190698A1 (en) * 2000-06-12 2003-08-01 Duran Gloria Maria Tortola Gypsum and stucco direct fired intermittent action kiln consists of two concentric intercommunicating metal tubes serving the combustion chamber and the kiln
ES2224829A1 (en) * 2002-12-30 2005-03-01 Talleres A. Monterde, S.A. Rotary oven for obtaining high yield of calorific hemihydrate and anhydrite
ES2226551A1 (en) * 2002-12-30 2005-03-16 Talleres A. Monterde, S.A. Rotary kiln for gypsum fabrication includes a variable calcining zone heat volume and flow rate and adjustable design of the kiln
ES2244354A1 (en) * 2005-03-18 2005-12-01 Gloria M. Tortola Duran Indirect combustion dehydrator, for e.g. gypsum fabrication material, includes concentric chambers for simultaneous two-stage drying based on combustion gas heat
CN117989845A (en) * 2024-04-07 2024-05-07 江苏汇能燃气催化科技有限公司 Rotary furnace with continuous discharging structure
CN117989845B (en) * 2024-04-07 2024-06-04 江苏汇能燃气催化科技有限公司 Rotary furnace with continuous discharging structure

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2721916B2 (en) * 1977-05-14 1979-08-30 Babcock-Bsh Ag Vormals Buettner- Schilde-Haas Ag, 4150 Krefeld Process for firing plaster and building plaster in a rotary kiln and rotary kiln for carrying out the process
DE2900052A1 (en) * 1979-01-02 1980-07-10 Kloeckner Humboldt Deutz Ag METHOD AND INSTALLATION FOR THE HEAT TREATMENT OF MINERAL GOODS, IN PARTICULAR FOR THE BURNING OF PLASTER
DE2949479A1 (en) * 1979-12-08 1981-06-11 Metallgesellschaft Ag, 6000 Frankfurt METHOD FOR DRYING AND CALCINATING SCHUETTGUETE

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2190698A1 (en) * 2000-06-12 2003-08-01 Duran Gloria Maria Tortola Gypsum and stucco direct fired intermittent action kiln consists of two concentric intercommunicating metal tubes serving the combustion chamber and the kiln
ES2224829A1 (en) * 2002-12-30 2005-03-01 Talleres A. Monterde, S.A. Rotary oven for obtaining high yield of calorific hemihydrate and anhydrite
ES2226551A1 (en) * 2002-12-30 2005-03-16 Talleres A. Monterde, S.A. Rotary kiln for gypsum fabrication includes a variable calcining zone heat volume and flow rate and adjustable design of the kiln
ES2244354A1 (en) * 2005-03-18 2005-12-01 Gloria M. Tortola Duran Indirect combustion dehydrator, for e.g. gypsum fabrication material, includes concentric chambers for simultaneous two-stage drying based on combustion gas heat
CN117989845A (en) * 2024-04-07 2024-05-07 江苏汇能燃气催化科技有限公司 Rotary furnace with continuous discharging structure
CN117989845B (en) * 2024-04-07 2024-06-04 江苏汇能燃气催化科技有限公司 Rotary furnace with continuous discharging structure

Also Published As

Publication number Publication date
DE1433860A1 (en) 1969-02-06

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