DE385453C - Processing of liquid slag from grate furnaces on Portland cement - Google Patents
Processing of liquid slag from grate furnaces on Portland cementInfo
- Publication number
- DE385453C DE385453C DEP43845D DEP0043845D DE385453C DE 385453 C DE385453 C DE 385453C DE P43845 D DEP43845 D DE P43845D DE P0043845 D DEP0043845 D DE P0043845D DE 385453 C DE385453 C DE 385453C
- Authority
- DE
- Germany
- Prior art keywords
- liquid slag
- portland cement
- processing
- grate furnaces
- slag
- 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
- 239000002893 slag Substances 0.000 title claims description 16
- 239000007788 liquid Substances 0.000 title claims description 10
- 239000011398 Portland cement Substances 0.000 title claims description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 2
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 2
- 229910052602 gypsum Inorganic materials 0.000 claims description 2
- 239000010440 gypsum Substances 0.000 claims description 2
- 239000004571 lime Substances 0.000 claims description 2
- 238000010079 rubber tapping Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000010883 coal ash Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
- C04B5/06—Ingredients, other than water, added to the molten slag or to the granulating medium or before remelting; Treatment with gases or gas generating compounds, e.g. to obtain porous slag
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Description
Verarbeitung der flüssigen Schlacke von Rostfeuerungen auf Portlandzernent. Man war allgemein der Ansicht, daß bei Rostfeuerungen sich bildende Schlacken keinerlei wertvolle Eigenschaften mehr besitzen; denn nach der chemischen Zusammensetzung der Kohlenaschen ist die Möglichkeit der Verwendung und Nutzbarmachung ohne erfinderisches Zutun ausgeschlossen: Gemäß dem vorliegenden Verfahren sollen derartige bei Rostfeuerungen auftretenden Aschen nach Mischung, namentlich mit Kalk, Gips u: dgl., zur Herstellung eines hydraulischen Bindemittels, nämlich Portlandzement, verwendet werden, und zwar dadurch, daß die Mineralien der flüssigen Schlacke in der erforderlichen Menge in stückiger Form beigegeben werden. Man hat zwar schon versucht, Hochofenschlacken hydraulische Eigenschaften dadurch zu Verleihen, daß man den flüssigen Schlacken Mineralien zufügt. Es ist aber niemals gelungen, dadurch die hydraulischen Eigenschaften so zu steigern, daß die so behandelten Schlacken nach der Körung unmittelbar Portlandzement ergeben.Processing of liquid slag from grate furnaces at Portland headquarters. It was generally of the opinion that no slag whatsoever formed in grate firing have more valuable properties; because according to the chemical composition The coal ash is the possibility of use and utilization without being inventive No action can be taken: According to the present method, such in grate firing occurring ashes after mixing, namely with lime, gypsum and the like, for the production a hydraulic binder, namely Portland cement, can be used, and by the fact that the minerals of the liquid slag in the required amount be added in lump form. Attempts have already been made to blast furnace slag to give hydraulic properties by using the liquid slag Adds minerals. But it never succeeded, thereby the hydraulic properties to increase so that the slag treated in this way after the graining immediately Portland cement result.
Nach dem Verfahren gegenwärtiger Erfindung erhält man Portlandzement in einfachster Weise, und überdies ist im Gegensatz zu Hochofenschlacken eine Körnung nicht nötig. Wie der Erfinder erkannt hat, enthalten die meisten Kohlenaschen im Gegensatz zu Schlacken von Hochöfen nicht unbedeutende Mengen von Eisen. Deshalb sind die Schlacken von Rostfeuerungen leichtflüssig und vermögen sich mit den in sie eingeführten Mineralien, die sie auflösen, chemisch derart innig zu vereinen, daß das gewünschte Erzeugnis erzielt wird. Um für das vorliegende Verfahren die ausgeschiedene flüssige Schlacke zu sammeln, ist an geeigneter Stelle eine Wanne oder eine langgestreckte, zweckmäßig nach vorn geneigte Kammer angeordnet, so daß die flüssige Schlacke jederzeit aus dieser Sammeleinrichtung entfernt werden kann.Portland cement is obtained by the process of the present invention in the simplest way, and moreover, in contrast to blast furnace slag, it is a grain not necessary. As the inventor has recognized, most coal ashes contain in the In contrast to slag from blast furnaces, not insignificant amounts of iron. That's why the slags from grate furnaces are easily fluid and can interact with the in to chemically combine imported minerals that they dissolve so intimately, that the desired product is achieved. In order to use the To collect precipitated liquid slag is a tub in a suitable place or an elongated, suitably inclined forward chamber arranged so that the liquid slag can be removed from this collecting device at any time.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP43845D DE385453C (en) | 1922-03-16 | 1922-03-16 | Processing of liquid slag from grate furnaces on Portland cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP43845D DE385453C (en) | 1922-03-16 | 1922-03-16 | Processing of liquid slag from grate furnaces on Portland cement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE385453C true DE385453C (en) | 1923-11-23 |
Family
ID=7379818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEP43845D Expired DE385453C (en) | 1922-03-16 | 1922-03-16 | Processing of liquid slag from grate furnaces on Portland cement |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE385453C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1055428B (en) * | 1951-12-06 | 1959-04-16 | Eiji Munekata | Process for the production of a water-quenched slag suitable as an additive to cement |
-
1922
- 1922-03-16 DE DEP43845D patent/DE385453C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1055428B (en) * | 1951-12-06 | 1959-04-16 | Eiji Munekata | Process for the production of a water-quenched slag suitable as an additive to cement |
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