FR2423741A1 - Thermal economiser for short cement kiln - includes helicoidal refractory steel castings or chains - Google Patents
Thermal economiser for short cement kiln - includes helicoidal refractory steel castings or chainsInfo
- Publication number
- FR2423741A1 FR2423741A1 FR7811849A FR7811849A FR2423741A1 FR 2423741 A1 FR2423741 A1 FR 2423741A1 FR 7811849 A FR7811849 A FR 7811849A FR 7811849 A FR7811849 A FR 7811849A FR 2423741 A1 FR2423741 A1 FR 2423741A1
- Authority
- FR
- France
- Prior art keywords
- economiser
- furnace
- thermal
- cement kiln
- chains
- 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
-
- 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
- F27B7/14—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge
- F27B7/16—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
Thermal economiser is arranged in a short cement kiln immediately above the furnace, i.e. at the material entry side and made of a highly refractory steel esp. as cast. The economiser consists of elements arranged in helices, the hand of which is inverse to that of the flow of prod. in the furnace, or in elliptical forms. Alternatively it may consist of steel chains fastened to the furnace wall, the fastenings being arranged so as to produce helicoidal alignments. In one embodiment the two ends of a casting viewed in projection on a plane perpendicular to the axis of the furnace, form between them an angle at the centre of 90 plus-or-minus 30 degrees or where the fastenings of the two points of a chain form an angle at the centre of 90 plus-or-minus 30 degrees R. The thermal economiser increases the throughput to the furnace and hence the yield of cement.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7811849A FR2423741A1 (en) | 1978-04-21 | 1978-04-21 | Thermal economiser for short cement kiln - includes helicoidal refractory steel castings or chains |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7811849A FR2423741A1 (en) | 1978-04-21 | 1978-04-21 | Thermal economiser for short cement kiln - includes helicoidal refractory steel castings or chains |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2423741A1 true FR2423741A1 (en) | 1979-11-16 |
FR2423741B1 FR2423741B1 (en) | 1980-11-07 |
Family
ID=9207444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7811849A Granted FR2423741A1 (en) | 1978-04-21 | 1978-04-21 | Thermal economiser for short cement kiln - includes helicoidal refractory steel castings or chains |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2423741A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR600030A (en) * | 1924-06-25 | 1926-01-28 | Compania Anglo Espanola De Cem | Improvements to rotary kilns and refrigerants |
FR1515559A (en) * | 1966-03-23 | 1968-03-01 | C K D Praha Op | Rotary oven for baking raw, powdery materials |
DE1483046B1 (en) * | 1964-02-27 | 1970-11-12 | Champbell Chain Co | Chain for rotary ovens and the like |
-
1978
- 1978-04-21 FR FR7811849A patent/FR2423741A1/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR600030A (en) * | 1924-06-25 | 1926-01-28 | Compania Anglo Espanola De Cem | Improvements to rotary kilns and refrigerants |
DE1483046B1 (en) * | 1964-02-27 | 1970-11-12 | Champbell Chain Co | Chain for rotary ovens and the like |
FR1515559A (en) * | 1966-03-23 | 1968-03-01 | C K D Praha Op | Rotary oven for baking raw, powdery materials |
Also Published As
Publication number | Publication date |
---|---|
FR2423741B1 (en) | 1980-11-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |