ES282399A1 - A procedure with your team to calcine plaster (Machine-translation by Google Translate, not legally binding) - Google Patents

A procedure with your team to calcine plaster (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES282399A1
ES282399A1 ES282399A ES282399A ES282399A1 ES 282399 A1 ES282399 A1 ES 282399A1 ES 282399 A ES282399 A ES 282399A ES 282399 A ES282399 A ES 282399A ES 282399 A1 ES282399 A1 ES 282399A1
Authority
ES
Spain
Prior art keywords
calcine
translation
procedure
gypsum
machine
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
ES282399A
Other languages
Spanish (es)
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.)
BPB Ltd
Original Assignee
British Plaster Board Holdings Ltd
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 British Plaster Board Holdings Ltd filed Critical British Plaster Board Holdings Ltd
Publication of ES282399A1 publication Critical patent/ES282399A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C01F11/466—Conversion of one form of calcium sulfate to another
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
    • B01J6/001—Calcining
    • B01J6/004—Calcining using hot gas streams in which the material is moved
    • 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
    • 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
    • C04B11/0281—Kettles; Marmites; Autoclaves

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Baking, Grill, Roasting (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

A procedure with its equipment for calcining gypsum, characterized by the fact that it consists of heating gypsum powder in a calcination boiler to calcine the gypsum, and when it is completely calcined, add continuously, by the upper end of the boiler, more gypsum in powder form, with which calcined gypsum is passed from the bottom of the boiler and discharged from it by the upward displacement due to the height of the material in the boiler. (Machine-translation by Google Translate, not legally binding)
ES282399A 1961-11-13 1962-11-12 A procedure with your team to calcine plaster (Machine-translation by Google Translate, not legally binding) Expired ES282399A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15296861A 1961-11-13 1961-11-13

Publications (1)

Publication Number Publication Date
ES282399A1 true ES282399A1 (en) 1963-02-01

Family

ID=22545214

Family Applications (1)

Application Number Title Priority Date Filing Date
ES282399A Expired ES282399A1 (en) 1961-11-13 1962-11-12 A procedure with your team to calcine plaster (Machine-translation by Google Translate, not legally binding)

Country Status (10)

Country Link
BE (1) BE624555A (en)
CH (1) CH394926A (en)
DE (1) DE1258321B (en)
DK (1) DK115723B (en)
ES (1) ES282399A1 (en)
FI (1) FI47343C (en)
GB (1) GB1018464A (en)
LU (1) LU42643A1 (en)
NL (2) NL141481B (en)
SE (1) SE323614B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1488665A (en) * 1973-11-27 1977-10-12 Bpb Industries Ltd Calcining calcium sulphate dihydrate
US4161390A (en) * 1977-06-16 1979-07-17 United States Gypsum Company Calcining kettle having multi-pass heating system
GB2001157B (en) * 1977-07-15 1982-07-07 Coal Ind Improvements in or relating to fluidised beds
US4188186A (en) * 1978-06-22 1980-02-12 Combustion Engineering, Inc. Automatic calcining kettle
ZA793953B (en) * 1978-08-08 1980-08-27 Coal Industry Patents Ltd Heat treatment of material
IE49127B1 (en) * 1979-01-08 1985-08-07 Bpb Industries Ltd Calcination method and apparatus
US4533528A (en) * 1983-07-15 1985-08-06 United States Gypsum Company Process for continuously calcining gypsum to low dispersed consistency stucco
US4626199A (en) * 1985-04-25 1986-12-02 United States Gypsum Company Submerged combustion calcination
GB8625964D0 (en) * 1986-10-30 1986-12-03 Bpb Industries Plc Calcination apparatus
US5743954A (en) * 1995-02-02 1998-04-28 United States Gypsum Company Method for continuous refractoryless calcining of gypsum
US5743728A (en) * 1995-08-15 1998-04-28 Usg Corporation Method and system for multi-stage calcining of gypsum to produce an anhydrite product
US7434980B2 (en) 2004-02-27 2008-10-14 United States Gypsum Company Swinging agitator for a gypsum calcining apparatus and the like
US7175426B2 (en) 2004-02-27 2007-02-13 United States Gypsum Company High efficiency refractoryless kettle
CN101952203B (en) * 2008-02-19 2013-08-14 美国石膏公司 Method and apparatus for pressurized calcination of gypsum

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485317A (en) * 1943-01-29 1949-10-18 Standard Oil Dev Co Method of manufacturing plaster of paris
GB610439A (en) * 1946-04-05 1948-10-15 Reginald George Franklin Improvements in and relating to the dehydration of particulate calcium sulphate
FR928217A (en) * 1946-05-17 1947-11-21 System and method for drying or heat treatment
GB855131A (en) * 1955-12-01 1960-11-30 Smidth & Co As F L Improvements relating to apparatus and installations for the cooling of cement or other material which can be fluidised

Also Published As

Publication number Publication date
BE624555A (en) 1963-03-01
DK115723B (en) 1969-11-03
SE323614B (en) 1970-05-04
CH394926A (en) 1965-06-30
DE1258321B (en) 1968-01-04
NL285104A (en)
FI47343C (en) 1973-11-12
FI47343B (en) 1973-07-31
LU42643A1 (en) 1963-01-05
NL141481B (en) 1974-03-15
GB1018464A (en) 1966-01-26

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