DE1054718B - Device for performing thermal and / or chemical reactions on sintered grates - Google Patents
Device for performing thermal and / or chemical reactions on sintered gratesInfo
- Publication number
- DE1054718B DE1054718B DEM32847A DEM0032847A DE1054718B DE 1054718 B DE1054718 B DE 1054718B DE M32847 A DEM32847 A DE M32847A DE M0032847 A DEM0032847 A DE M0032847A DE 1054718 B DE1054718 B DE 1054718B
- Authority
- DE
- Germany
- Prior art keywords
- grate
- grate bars
- sintered
- chemical reactions
- performing thermal
- 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.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 title claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 6
- 239000007795 chemical reaction product Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000010304 firing Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims 1
- 239000007769 metal material Substances 0.000 claims 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 150000002506 iron compounds Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 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
- F27B1/08—Shaft or like vertical or substantially vertical furnaces heated otherwise than by solid fuel mixed with charge
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
Vorrichtung zur Durchführung thermischer und/oder chemischer Reaktionen auf Sinterrosten Eine nicht zum bekannten Stand der Technik gehörende Vorrichtung zum Sintern und Brennen von E=isenerzen sieht vor, eine Sintermaschine zu verwenden, deren Roststäbe im wesentlichen aus Eisenoxyd bestehen.Device for carrying out thermal and / or chemical reactions on sintered grates A device not belonging to the known state of the art for sintering and burning iron ores provides for the use of a sintering machine, whose grate bars consist essentially of iron oxide.
Darüber hinaus wurde nun gefunden, daß ganz. allgemein für die Durchführung anderer chemischer und/ oder thermischer Reaktionen auf Sinterrosten ein Rost, dessen Rotstäbe aus einem Material bestehen, welches mit dem Endprodukt des auf dem Sinterband durchgeführten Prozesses identisch oder mindestens so weit ähnlich ist, daß .es bei Vermischung mit dem Endprodukt nicht stört, ebenfalls erhebliche überraschende Vorteile bringt.In addition, it has now been found that quite. general for the implementation other chemical and / or thermal reactions on sintered grates a rust, its Red bars are made of a material that is compatible with the end product of the sintered belt performed process is identical or at least so similar that .es when mixed with the end product does not interfere, likewise considerable surprising Brings advantages.
So ist z. B. bei der Herstellung von Weißzement jede Spur von Eisenoxyd wegen der starken Färbewirkung von Eisenverbindungen schädlich. Beim Sintern auf dem üblichen Sinterband mit Roststäben aus Gußeisen oder Stahl läßt sich aber trotz der bekannten Anwendung einer Zwischenschicht von Rostbelag eine Verunreinigung des Weißzementes durch Spuren von Eisenverbindungen aus den Roststäben nur schwer vermeiden. Erfindungsgemäß werden diese Schwierigkeiten durch Verwendung von Roststäben aus keramischem Material, vorzugsweise aus Weißzement oder -klinker selbst, vermieden.So is z. B. in the production of white cement every trace of iron oxide harmful because of the strong coloring effect of iron compounds. When sintering on The usual sintered belt with grate bars made of cast iron or steel can be used in spite of this the known use of an intermediate layer of grate coating is an impurity of the white cement is difficult due to traces of iron compounds from the grate bars avoid. According to the invention, these difficulties are alleviated by the use of grate bars made of ceramic material, preferably white cement or clinker itself, avoided.
Auch bei der Erzeugung von normalem Portlandzement aus verschiedenen Rohstoffen, wie oder Gips-Ton-Gemischen, bietet die Verwendung von Roststäben aus Zement oder Klinker Vorteile. Sobald ein solcher Stab zerbricht, stellt er für die Produktion keinen Fremdkörper dar, und es ist nicht notwendig, die beschädigten Roststäbe mit Hilfe ziemlich kostspieliger Anzeige- und Suchinstrumente aus der Produktion zu entfernen.Also in the production of normal Portland cement from various Raw materials, such as plaster of paris and clay mixtures, offer the use of grate bars Cement or clinker advantages. As soon as such a rod breaks, it stands for the Production does not pose a foreign object and it is not necessary to take the damaged one Grate bars using rather expensive display and search tools from the Remove production.
Ebenso eignen sich Phosphatstäbe für die Sinterung oder Pelletisierung von Phosphaten.Phosphate rods are also suitable for sintering or pelletizing of phosphates.
Wie aus den angeführten Beispielen hervorgeht, ist es im allgemeinen zweckmäßig, als Roststabmaterial das gleiche Material zu verwenden wie das Endprodukt des auf dem Sinterrost durchzuführenden Verfahrens.As can be seen from the examples given, it is generally It is advisable to use the same material as the end product as the grate bar material of the process to be carried out on the sintered grate.
Weiter bietet die erfindungsgemäße Vorrichtung Vorteile in allen den Fällen, in denen die Behandlung auf dem Rost mit chemisch aggressiven Gasen erfolgt oder solche während der Behandlung entstehen, welche beim Durchtreten durch einen metallischen Rost chemisch angreifen würden, wie z. B. Chlor, H Cl, S 02, SO, u. dgl. In allen diesen Fällen ist es erfindungsgemäß möglich, Roststäbe aus einem keramischen Material zu verwenden, das gegen :den Angriff dieser Gase unempfindlich ist.Furthermore, the device according to the invention offers advantages in all cases in which the treatment on the grate is carried out with chemically aggressive gases or those arise during the treatment which would chemically attack when passing through a metallic grate, such as. B. chlorine, H Cl, S 02, SO, etc. In all these cases it is possible according to the invention to use grate bars made of a ceramic material that is insensitive to attack by these gases.
Es ist zweckmäßig, die Roststabform dem neuen Werkstoff anzupassen, also insbesondere alle Erhöhungen und Distanzstücke zu vereinfachen, so daß die Herstellung der neuen Stäbe keine großen Verformungsprobleme bietet. Weiterhin können die tragenden Teile des Stabes, auf welche die Barüberliegende Schüttung besonders drückt, verstärkt werden.It is advisable to adapt the shape of the grate bar to the new material, So in particular to simplify all elevations and spacers, so that the Manufacture of the new rods does not offer any major deformation problems. Furthermore you can the load-bearing parts of the rod, on which the bar overlay is particularly important pushes, be reinforced.
Die Festigkeit der Roststäbe kann durch einen an sich bekannten festigkeitssteigernden Zusatz vor dem Verpressen und Brennen der Formlinge, wie z. B. durch Zusatz von Wasserglas, hochaktivem Ton u. dgl., erhöht werden. Selbstverständlich ist es zweckmäßig, die Auswahl dieser Zusätze nach Möglichkeit so vorzunehmen, daß die Zusammensetzung des fertigen Roststabes von der des Endproduktes des auf dem Rost durchgeführten Prozesses nicht oder möglichst wenig in unerwünschter Richtung abweicht.The strength of the grate bars can be increased by a known strength Addition before pressing and firing the moldings, such as. B. by adding Water glass, highly active clay and the like can be increased. Of course, it is useful make the selection of these additives if possible so that the composition of the finished grate bar from that of the end product of the one carried out on the grate Process does not deviate or deviates as little as possible in an undesired direction.
Wenn es für einen besonderen Anwendungszweck nicht oder nur schwer möglich ist, die erforderliche Festigkeit, die wegen der geringen mechanischen Beanspruchung auf dem Rost, insbesondere auf dem Sinterband, nicht sehr groß sein muß, zu erzielen, kann gemäß einer besonderen Ausgestaltung der Erfindung der nichtmetallische Roststab durch einen metallischen Kern verstärkt werden.If it is difficult or impossible for a particular application is possible, the required strength because of the low mechanical stress does not have to be very large on the grate, especially on the sintered belt, to achieve can according to a particular embodiment of the invention, the non-metallic grate bar be reinforced by a metallic core.
Die Herstellung der Roststäbe kann durch Verpressen und/oder Rütteln der mit Wasser angeteigten feinverteilten Rohstoffe, gegebenenfalls nach Zusatz der erwähnten festigkeitssteigernden Stoffe und darauffolgendem Brennen, erfolgen.The grate bars can be produced by pressing and / or shaking the finely divided raw materials made into a paste with water, optionally after addition the mentioned strength-increasing substances and subsequent firing.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM32847A DE1054718B (en) | 1957-01-08 | 1957-01-08 | Device for performing thermal and / or chemical reactions on sintered grates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM32847A DE1054718B (en) | 1957-01-08 | 1957-01-08 | Device for performing thermal and / or chemical reactions on sintered grates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1054718B true DE1054718B (en) | 1959-04-09 |
Family
ID=7301594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM32847A Pending DE1054718B (en) | 1957-01-08 | 1957-01-08 | Device for performing thermal and / or chemical reactions on sintered grates |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1054718B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE432883C (en) * | 1924-09-04 | 1926-08-19 | Erdoel Akt Ges Fa Deutsche | Firing grate in pointed arch shape |
| DE811484C (en) * | 1948-10-02 | 1951-08-20 | Demag Ag | Gas generator, especially for gasifying fine-grain fuels |
-
1957
- 1957-01-08 DE DEM32847A patent/DE1054718B/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE432883C (en) * | 1924-09-04 | 1926-08-19 | Erdoel Akt Ges Fa Deutsche | Firing grate in pointed arch shape |
| DE811484C (en) * | 1948-10-02 | 1951-08-20 | Demag Ag | Gas generator, especially for gasifying fine-grain fuels |
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