GB752903A - Method and apparatus for the heat treatment of bulk material, in pieces or granulated form, such as chalk, dolomite, cement or ore - Google Patents
Method and apparatus for the heat treatment of bulk material, in pieces or granulated form, such as chalk, dolomite, cement or oreInfo
- Publication number
- GB752903A GB752903A GB4550/54A GB455054A GB752903A GB 752903 A GB752903 A GB 752903A GB 4550/54 A GB4550/54 A GB 4550/54A GB 455054 A GB455054 A GB 455054A GB 752903 A GB752903 A GB 752903A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hopper
- rotary
- shaft
- furnace
- annular
- 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
- 239000013590 bulk material Substances 0.000 title abstract 2
- 239000004568 cement Substances 0.000 title abstract 2
- 229910000514 dolomite Inorganic materials 0.000 title abstract 2
- 239000010459 dolomite Substances 0.000 title abstract 2
- 238000010438 heat treatment Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000007789 gas Substances 0.000 abstract 4
- 230000004048 modification Effects 0.000 abstract 4
- 238000012986 modification Methods 0.000 abstract 4
- 238000001354 calcination Methods 0.000 abstract 1
- -1 chalk Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 abstract 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 abstract 1
- 235000014380 magnesium carbonate Nutrition 0.000 abstract 1
- 239000001095 magnesium carbonate Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/005—Shaft or like vertical or substantially vertical furnaces wherein no smelting of the charge occurs, e.g. calcining or sintering furnaces
-
- 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 specially adapted for rotary-drum furnaces
- F27B7/2016—Arrangements of preheating devices for the charge
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
752,903. Agglomerating ores. WARMESTELLE STEINE UND ERDEN GES. Feb. 16, 1954 [Feb. 21, 1953 ; March 12, 1953; April 29, 1953 ; May 22, 1953; May 22, 1953; Nov. 10, 1953], No. 4550/54. Class 82(1). [Also in Groups XII and XIII] Apparatus for heat treating e.g. drying, calcining, burning or sintering bulk material, e.g. chalk, dolomite, magnesite or cement moving in countercurrent to hot gases, comprises an annular shaft furnace 2 disposed above a rotary hopper 8 carrying an annular discharge table 10, and feeding a rotary furnace 24, Fig. 2, by a shoot 23, hot gases from the rotary furnace passing in turn through the shoot 23, the hopper 8, around the table 10, up the annular shaft 2, and out by an offtake 15. The shaft 2, which is supported by brackets 5 in members 6 forming part of a framework 28, makes a sand or water seal 22 with the hopper 8, which rotates on wheels 17 engaging a rail 18, and is driven by a motor 19 through a pinion 20 engaging a toothed rail 21 encircling the hopper. The discharge table 10 is supported on the hopper 8 by radial webs 9, and is formed with a wedge-shaped protuberance 11. In a modification, Fig. 3 (not shown), the hopper is fixed and the shaft is made rotatable, and in another modification, Fig. 4 (not shown), the rotary furnace is replaced by a second annular shaft furnace disposed below the first. Additional heat may be supplied to the hot gases before they enter the hopper by burners extending from a bustle ring round the -upper part of the shoot 23, Fig. 5, (not shown). In another modification, Fig. 6, the hot gases leave the kiln by a separate flue 42 leading to an annular distributing channel 43, and the inner furnace wall 40 widens at the base into a part-conical projection 41 feeding the pocketed material through an opening 44 onto the dicharge table 10 supported in the rotary hopper 8. A final and generally similar modification, Fig. 7 (not shown), has a fixed hopper and a rotary shaft.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE752903X | 1953-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB752903A true GB752903A (en) | 1956-07-18 |
Family
ID=6655561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4550/54A Expired GB752903A (en) | 1953-03-12 | 1954-02-16 | Method and apparatus for the heat treatment of bulk material, in pieces or granulated form, such as chalk, dolomite, cement or ore |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB752903A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1205561A1 (en) * | 2000-11-14 | 2002-05-15 | Danieli & C. Officine Meccaniche SpA | Furnace for the direct reduction of iron oxides and method for the manufacturing of iron |
-
1954
- 1954-02-16 GB GB4550/54A patent/GB752903A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1205561A1 (en) * | 2000-11-14 | 2002-05-15 | Danieli & C. Officine Meccaniche SpA | Furnace for the direct reduction of iron oxides and method for the manufacturing of iron |
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