DE359053C - Process for processing scrap into cast iron, whereby the molten scrap flows through a layer of glowing fuel - Google Patents
Process for processing scrap into cast iron, whereby the molten scrap flows through a layer of glowing fuelInfo
- Publication number
- DE359053C DE359053C DEL48172D DEL0048172D DE359053C DE 359053 C DE359053 C DE 359053C DE L48172 D DEL48172 D DE L48172D DE L0048172 D DEL0048172 D DE L0048172D DE 359053 C DE359053 C DE 359053C
- Authority
- DE
- Germany
- Prior art keywords
- scrap
- layer
- cast iron
- fuel
- molten
- 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
- 239000000446 fuel Substances 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 5
- 229910001018 Cast iron Inorganic materials 0.000 title claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
Verfahren zur Verarbeitung von Schrott zu Gußeisen, wobei der geschmolzene Schrott durch eine Schicht glühenden Brennstoffs fließt. Die Erfindung betrifft ein für Gießereien wichtiges Verfahren zur Verarbeitung von Schrott mit geeigneten Zuschlägen, wie Schlacke, Erz o. dgl., zu Roheisen oder einer für Gießereizwecke brauchbaren Eisenlegierung. In dem gewöhnlichen Kupolofenbetrieb kann diese Verarbeitung von Schrott nicht erfolgen, weil sich die dabei erforderlichen chemischen Reaktionen im Kupolofen nicht durchführen lassen. Nach der Erfindung wird der Schrott mit den Zuschlägen zunächst in einem besonderen Raum mit den in einem Vergaser erzeugten Gasen geschmolzen, worauf die geschmolzenen Massen durch die heißen Schichten des Vergasers geleitet werden, um durch die Berührung mit der glühenden Brennstoffsäule die Beimengungen zu reduzieren und mit dem Eisen zu legieren.Process for processing scrap into cast iron, the molten Scrap flows through a layer of glowing fuel. The invention relates to an important method for foundries for processing scrap with suitable Additions, such as slag, ore, or the like, to pig iron or one for foundry purposes usable iron alloy. This processing can be carried out in the ordinary cupola furnace Scrap does not take place because it causes the necessary chemical reactions Do not allow this to be carried out in the cupola furnace. According to the invention, the scrap is with the Supplements initially in a special room with those generated in a carburetor Gases melted, whereupon the melted masses through the hot layers of the Carburetor passed to by contact with the glowing column of fuel to reduce the admixtures and alloy them with the iron.
Man verwendet zweckmäßig einen Ofen, der aus einem Vergaserschacht und einem gleichlaufend zu dessen Oberteil angeordneten Schmelzgutschacht besteht, von dessen Sohle ein Kanal in den unteren Teil des Vergaserschachtes führt. Die in dem unteren Teil des Brennstoffschachtes erzeugten Gase treten durch den Verbindungskanal in den Schmelzgutschacht und werden dort mittels eines Luftstromes verbrannt, der zweckmäßig durch eine gegenüber dem Verbindungskanal in der Wand des Vergaserschachtes angeordnete Düse eintritt. Die Höhe der glühenden Brennstoffsäule im Vergaser wird den besonderen Verhältnissen angepaßt, und deshalb werden zweckmäßig mehrere Reihen von Winddüsen in an sich bekannter Weise übereinander an dem Schachtunterteil eingebaut.It is expedient to use an oven consisting of a gasifier shaft and a melting material shaft arranged parallel to its upper part, from the bottom of which a channel leads into the lower part of the carburetor shaft. the Gases generated in the lower part of the fuel duct pass through the connecting duct into the smelting shaft and are burned there by means of an air stream, the expediently by one opposite the connection channel in the wall of the gasification shaft arranged nozzle enters. The height of the glowing column of fuel in the carburetor will be adapted to the particular circumstances, and therefore several rows are expedient installed by wind nozzles in a manner known per se one above the other on the lower part of the manhole.
In der Zeichnung ist ein zur Ausführung des Verfahrens geeigneter Ofen im Schnitt dargestellt. Der Brennstoffschacht besteht aus dem unteren Teil a, in dem die Vergasung und Reduktion stattfindet und dem den Brennstoffvorrat enthaltenden oberen Teil b. Neben diesem ist derSchmelzgutsohachtc angeordnet, von dessen Sohle ein Kanal d schräg abwärts über den Vorsprung e hinweg in den Unterteil a mündet. Gegenüber dem Kanal d befindet sich in der Schachtwand die Luftdüse f. Der Unterteil a besitzt übereinander mehrere Reihen von Luftdüsen g.In the drawing, a suitable furnace for carrying out the method is shown in section. The fuel shaft consists of the lower part a, in which the gasification and reduction takes place, and the upper part b, which contains the fuel supply. Next to this is the smelting goods shaft c, from the bottom of which a channel d opens obliquely downwards over the projection e into the lower part a. The air nozzle f is located opposite the channel d in the shaft wall. The lower part a has several rows of air nozzles g one above the other.
Der Schacht c wird mit Schrott und Zuschlägen, Schlacken und Erzen beschickt, während in den Schacht b Koks und gegebenenfalls auch noch Zuschläge eingebracht werden. Im Schachtteil a entsteht eine glühende Brennstoffsäule von hoher Temperatur; das hier gebildete Kohlenoxyd wird beim Aufsteigen von der durch die Düse f im Überschuß eintretenden und die Brennstoffschicht durchquerenden Luft im Kanal d und im Schacht c verbrannt. Der Schrott und die Zuschläge werden geschmolzen und fließen in den Schacht a, in dessen unterstem Teil sich das Schmelzgut sammelt. Den Düsen g und f wird zweckmäßig unabhängig voneinander die Verbrennungsluft zugeführt, um Winddruck und Vorwärmung getrennt regeln zu können.The shaft c is charged with scrap and aggregates, slag and ores, while coke and possibly also aggregates are introduced into the shaft b. In the shaft part a, a glowing column of fuel of high temperature arises; the carbon oxide formed here is burned as it rises by the excess air entering through the nozzle f and traversing the fuel layer in the channel d and in the shaft c. The scrap and the aggregates are melted and flow into the shaft a, in the lower part of which the melting material collects. The combustion air is expediently supplied to nozzles g and f independently of one another in order to be able to regulate the wind pressure and preheating separately.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL48172D DE359053C (en) | Process for processing scrap into cast iron, whereby the molten scrap flows through a layer of glowing fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL48172D DE359053C (en) | Process for processing scrap into cast iron, whereby the molten scrap flows through a layer of glowing fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE359053C true DE359053C (en) | 1922-09-18 |
Family
ID=7272354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEL48172D Expired DE359053C (en) | Process for processing scrap into cast iron, whereby the molten scrap flows through a layer of glowing fuel |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE359053C (en) |
-
0
- DE DEL48172D patent/DE359053C/en not_active Expired
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