FR2213918A1 - Rotary grinding drum-heat exchanger - for grinding and cooling moulding plaster or anhydrite - Google Patents

Rotary grinding drum-heat exchanger - for grinding and cooling moulding plaster or anhydrite

Info

Publication number
FR2213918A1
FR2213918A1 FR7341713A FR7341713A FR2213918A1 FR 2213918 A1 FR2213918 A1 FR 2213918A1 FR 7341713 A FR7341713 A FR 7341713A FR 7341713 A FR7341713 A FR 7341713A FR 2213918 A1 FR2213918 A1 FR 2213918A1
Authority
FR
France
Prior art keywords
grinding
anhydrite
heat exchanger
drum
cooled
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
FR7341713A
Other languages
French (fr)
Other versions
FR2213918B3 (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.)
Grenzebach GmbH and Co KG
Original Assignee
Buettner Schilde Haas AG
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 Buettner Schilde Haas AG filed Critical Buettner Schilde Haas AG
Publication of FR2213918A1 publication Critical patent/FR2213918A1/en
Application granted granted Critical
Publication of FR2213918B3 publication Critical patent/FR2213918B3/fr
Granted 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
    • F27B7/10—Rotary-drum furnaces, i.e. horizontal or slightly inclined internally heated, e.g. by means of passages in the wall
    • 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
    • F27B7/38—Arrangements of cooling devices
    • F27B7/383—Cooling devices for the charge
    • F27B7/386—Rotary-drum cooler

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

Hot anhydrite or plastic is ground in a rotary drum cooled by air passing through cooling tubes concentric with the drum and surrounding a central hot gas tube, and further cooled after finishing grinding in an extension cooling chamber cooled by aspirated air passing from the atmos. through cooling tubes, in a rotating chamber. Less fine dust is produced so that the prod. yield is increased.
FR7341713A 1973-01-17 1973-11-23 Rotary grinding drum-heat exchanger - for grinding and cooling moulding plaster or anhydrite Granted FR2213918A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2302153 1973-01-17

Publications (2)

Publication Number Publication Date
FR2213918A1 true FR2213918A1 (en) 1974-08-09
FR2213918B3 FR2213918B3 (en) 1976-10-08

Family

ID=5869201

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7341713A Granted FR2213918A1 (en) 1973-01-17 1973-11-23 Rotary grinding drum-heat exchanger - for grinding and cooling moulding plaster or anhydrite

Country Status (5)

Country Link
JP (1) JPS5144000B2 (en)
BR (1) BR7307777D0 (en)
CH (1) CH584168A5 (en)
DD (1) DD108811A5 (en)
FR (1) FR2213918A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2804423A1 (en) * 2000-01-28 2001-08-03 Energetic Ind Internat Anhydrite III or approximatelya stabilised by heat treatment, its method of production and an installation for its industrial scale production
US8793897B2 (en) 2010-08-11 2014-08-05 Grenzebach Bsh Gmbh Process and device for stabilising, cooling and dehumidifying gypsum plaster

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5757910Y2 (en) * 1978-04-15 1982-12-11
DE3112703A1 (en) * 1981-03-31 1982-10-07 Babcock-BSH AG vormals Büttner-Schilde-Haas AG, 4150 Krefeld METHOD FOR PRODUCING A WATERPROOF BINDING AGENT
DE102010033988A1 (en) * 2010-08-11 2012-02-16 Grenzebach Bsh Gmbh Method and device for stabilizing, cooling and dehumidifying stucco

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2804423A1 (en) * 2000-01-28 2001-08-03 Energetic Ind Internat Anhydrite III or approximatelya stabilised by heat treatment, its method of production and an installation for its industrial scale production
US8793897B2 (en) 2010-08-11 2014-08-05 Grenzebach Bsh Gmbh Process and device for stabilising, cooling and dehumidifying gypsum plaster

Also Published As

Publication number Publication date
CH584168A5 (en) 1977-01-31
DD108811A5 (en) 1974-10-05
JPS49102598A (en) 1974-09-27
BR7307777D0 (en) 1974-10-22
FR2213918B3 (en) 1976-10-08
JPS5144000B2 (en) 1976-11-25

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Legal Events

Date Code Title Description
CD Change of name or company name