GB1046962A

GB1046962A – A gypsum calciner
– Google Patents

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
1962-04-18
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.)
1962-04-18
Filing date
1963-04-18
Publication date
1966-10-26

1963-04-18
Application filed by Individual
filed
Critical
Individual

1966-10-26
Publication of GB1046962A
publication
Critical
patent/GB1046962A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

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

Abstract

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 (4)

* 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

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

1963

1963-04-01
DE
DE19631433860
patent/DE1433860A1/en
active
Pending

1963-04-18
GB
GB1539563A
patent/GB1046962A/en
not_active
Expired

Cited By (4)

* 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

Also Published As

Publication number
Publication date

DE1433860A1
(en)

1969-02-06

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