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 anhydriteInfo
- 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
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.
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)
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)
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 |
-
1973
- 1973-10-05 BR BR777773A patent/BR7307777D0/en unknown
- 1973-11-02 DD DD17443273A patent/DD108811A5/xx unknown
- 1973-11-23 FR FR7341713A patent/FR2213918A1/en active Granted
-
1974
- 1974-01-10 CH CH27274A patent/CH584168A5/xx not_active IP Right Cessation
- 1974-01-16 JP JP777074A patent/JPS5144000B2/ja not_active Expired
Cited By (2)
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 |