DE912199C - Improvement of the properties of quick lime - Google Patents
Improvement of the properties of quick limeInfo
- Publication number
- DE912199C DE912199C DEP39199A DEP0039199A DE912199C DE 912199 C DE912199 C DE 912199C DE P39199 A DEP39199 A DE P39199A DE P0039199 A DEP0039199 A DE P0039199A DE 912199 C DE912199 C DE 912199C
- Authority
- DE
- Germany
- Prior art keywords
- lime
- quick lime
- improvement
- properties
- sulfur content
- 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
- C04B2/00—Lime, magnesia or dolomite
- C04B2/02—Lime
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
Werden Rohkalksteine mit festen Brennstoffen, wie Kohle oder Koks, in (Schacht- oder Ringöfen gebrannt, so wandert der 'Schwefel der Brennstoffe in den Kalk, d. h. der Schwefelgehalt deis Kalkes wird durch den Schwefel des Brennstoffes angereichert. Der Kalk verliert damit an Wert bei seiner Verwendung in Stahlwerksbetrieben usw.Are raw limestones with solid fuels such as coal or coke, in (shaft or ring furnaces, the 'sulfur of the fuels migrates into the lime, d. H. the sulfur content of the lime is increased by the sulfur in the fuel enriched. The lime thus loses value when it is used in steel mills etc.
Untersuchungen im Laboratorium über den Schwefelgehalt im !Kalk an verschiedenen Stellen eines einzelnen Kalkstückes brachten die überraschende Feststellung, daß der aus dem Brennstoff stammende iS@chwefel ausschließlich an der Oberfläche des Kalkstückes zu finden ist, während in der Mitte des Kalkstückes nur ein Schwefelgehalt gefunden wird, der dem Schwefelgehalt des Rohkalksteines entspricht.Investigations in the laboratory on the sulfur content in! Lime different places of a single piece of lime brought the surprising finding, that the iS @ sulfur from the fuel only occurs on the surface of the lime piece is to be found, while in the middle of the piece of lime there is only a sulfur content is found, which corresponds to the sulfur content of the raw limestone.
Gemäß der Erfindung wird deshalb vorgeschlagen, zur Erniedrigung des Gesamtschwefelgehaltes des gebrannten Kalkes den Kalk nach dem Brennvorgang einem Putz- und Scheuerprozeß zu unterwerfen, damit die an sich poröse Oberschicht abgerieben wird, die den gesamten Schwefel deis Brennstoffes enthält.According to the invention it is therefore proposed to lower the Total sulfur content of the quick lime the lime after the burning process To subject the cleaning and scrubbing process so that the top layer, which is porous in itself, is rubbed off which contains all the sulfur of the fuel.
In der Zeichnung ist eine Anlage zur Durchführung des Verfahrens dargestellt.The drawing shows a system for carrying out the method.
Abb. i zeigt die Gesamtanlage in Draufsicht, Abb. 2 eine Einzelvorrichtung: Der gebrannte Kalk wird im Ofen a auf ein fahrbares. Transportband b geschaufelt' und von diesem auf ein zu einer Tür c hinausgehendes Band d geworfen, das den Kalk in eine Scheuer- und Siebtrommel e weitergibt. !Dort werden von den Kalkstücken die anhaftendem weichen Kalkteile, die meist aus Gips oder Cas bestehen, also stark schwefelhaltig sind, abgerieben und mit dem übrigen Feinanteil von den Stücken durch einen Siebvorgang abgetrennt. Hintrer der Scheuertrommel e wird ein längeres Leseband f angeordnet, so daß schlechte Stücke aussortiert und ausgeschieden werden können. Anschließend fällt der Kalk in die Kalkwagen g, um im Stahlwerk verwendet zu werden, während der Feinkalk für Verkaufszwecke abgefahren wird.Fig. I shows the entire system in plan view, Fig. 2 shows a single device: The quick lime is in the kiln a on a mobile. Conveyor belt b shoveled ' and thrown from this onto a band d going out to a door c, which the lime passes into a scrubbing and screening drum e. ! There are pieces of lime the adhering soft limestone, which is usually made of plaster of paris or Cas, so strong Are sulphurous, rubbed off and with the rest of the fines from the pieces separated by a sieving process. Behind the scrubbing drum there is a longer reading ribbon f arranged so that bad pieces can be sorted out and discarded. The lime then falls into the lime wagons g to be used in the steel mill, while the fine lime is removed for sales purposes.
Die Folge! dieser Verladung ist eine L,eistungissteigerung und vor allem eine qualitative Verbesserung dies Kalkes, weil sein Schwefelgehalt geringer wird.The result! this loading is a performance increase and before Above all, a qualitative improvement of this lime, because its sulfur content is lower will.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP39199A DE912199C (en) | 1949-04-08 | 1949-04-08 | Improvement of the properties of quick lime |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP39199A DE912199C (en) | 1949-04-08 | 1949-04-08 | Improvement of the properties of quick lime |
Publications (1)
Publication Number | Publication Date |
---|---|
DE912199C true DE912199C (en) | 1954-05-28 |
Family
ID=7376346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP39199A Expired DE912199C (en) | 1949-04-08 | 1949-04-08 | Improvement of the properties of quick lime |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE912199C (en) |
-
1949
- 1949-04-08 DE DEP39199A patent/DE912199C/en not_active Expired
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