GB677275A - Improvements in or relating to kilns - Google Patents
Improvements in or relating to kilnsInfo
- Publication number
- GB677275A GB677275A GB2997049A GB2997049A GB677275A GB 677275 A GB677275 A GB 677275A GB 2997049 A GB2997049 A GB 2997049A GB 2997049 A GB2997049 A GB 2997049A GB 677275 A GB677275 A GB 677275A
- Authority
- GB
- United Kingdom
- Prior art keywords
- louvres
- refractory
- hopper
- chamber
- cast
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Tunnel Furnaces (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
677,275. Shaft kilns. NEWELL & CO., Ltd., E., and HOWDEN, P. Oct. 19, 1950 [Nov. 23, 1949], No. 29970/49. Class 51 (ii). In a cross-draught shaft kiln wherein small limestone is fed from a hopper 21 and discharged by a rotary valve 23 from a hopper 24, the charge material passes down two shafts 11 defined by two sets of louvres, each set comprising outer louvres 7, 8 and inner louvres 9, 10, built into the refractory lining 4, and spaced from the end walls thereof to form vertical shafts 5 and 6 divided by refractory partitions 15, the central chamber 12, having a refractory arch 13 forming the roof of a combustion chamber 14 and a cast-iron arch 16 disposed below an off-take 17 for spent gases. The lower louvres 7 and 9 in the calcining zone below each partition 15 are made of refractory material and the upper louvres 8 and 10 in the drying and preheating zone above each partition 15 are made of cast-iron. From the combustion chamber 14, which may be fired by solid, liquid or gaseous fuel, the heating gases pass across the charge material four times before reaching the off-take 17 which is connected to an exhaust fan. Air drawn through flattened cooling tubes 25 and an air chest 26 in the discharge hopper 24 by a fan 27 may be supplied in part to the chamber 14 as preheated combustion air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2997049A GB677275A (en) | 1949-11-23 | 1949-11-23 | Improvements in or relating to kilns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2997049A GB677275A (en) | 1949-11-23 | 1949-11-23 | Improvements in or relating to kilns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB677275A true GB677275A (en) | 1952-08-13 |
Family
ID=10300153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2997049A Expired GB677275A (en) | 1949-11-23 | 1949-11-23 | Improvements in or relating to kilns |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB677275A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5885537A (en) * | 1995-01-17 | 1999-03-23 | Groep Danis, Naamloze Vennootschap | Method and device for purifying gases |
-
1949
- 1949-11-23 GB GB2997049A patent/GB677275A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5885537A (en) * | 1995-01-17 | 1999-03-23 | Groep Danis, Naamloze Vennootschap | Method and device for purifying gases |
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