GB981025A - Improvements in or relating to the kilning of cement - Google Patents
Improvements in or relating to the kilning of cementInfo
- Publication number
- GB981025A GB981025A GB5078763A GB5078763A GB981025A GB 981025 A GB981025 A GB 981025A GB 5078763 A GB5078763 A GB 5078763A GB 5078763 A GB5078763 A GB 5078763A GB 981025 A GB981025 A GB 981025A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tank
- brine
- kilning
- dusts
- bed
- 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
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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/60—Methods for eliminating alkali metals or compounds thereof, e.g. from the raw materials or during the burning process; methods for eliminating other harmful components
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Public Health (AREA)
- Toxicology (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
<PICT:0981025/C1/1> The alkalies are removed from cement raw material prior to kilning by passing the exhaust gases from rotary kiln 1 one or more times through a bed of raw material on travelling grate preheater 4, removing the dusts from the gases after the or each passage through the bed by means of separators 6 and 10, mixing the dusts with water in tank 13 to form a suspension, allowing the suspension to settle in tank 17 to form a strong alkali brine and an alkali poor sludge which is pumped to a granulating pan 21 where it is used to granulate fresh material to be kilned. The brine may be passed from tank 17 to a tank 26 containing a stirrer with a hollow shaft 27 through which kiln exhaust gases are passed to neutralize the brine which is then discharged via 30.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5078763A GB981025A (en) | 1963-12-23 | 1963-12-23 | Improvements in or relating to the kilning of cement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5078763A GB981025A (en) | 1963-12-23 | 1963-12-23 | Improvements in or relating to the kilning of cement |
Publications (1)
Publication Number | Publication Date |
---|---|
GB981025A true GB981025A (en) | 1965-01-20 |
Family
ID=10457343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5078763A Expired GB981025A (en) | 1963-12-23 | 1963-12-23 | Improvements in or relating to the kilning of cement |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB981025A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6391107B1 (en) * | 1995-02-13 | 2002-05-21 | E. Schwenk Baustoffwerke Kg | Method for the utilization of residual materials in the production of cement |
-
1963
- 1963-12-23 GB GB5078763A patent/GB981025A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6391107B1 (en) * | 1995-02-13 | 2002-05-21 | E. Schwenk Baustoffwerke Kg | Method for the utilization of residual materials in the production of cement |
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