DE391513C - Firing with moving grate and supply of fuel through smoldering shafts heated from the outside by the grate gases for the extraction of by-products - Google Patents
Firing with moving grate and supply of fuel through smoldering shafts heated from the outside by the grate gases for the extraction of by-productsInfo
- Publication number
- DE391513C DE391513C DEO12713D DEO0012713D DE391513C DE 391513 C DE391513 C DE 391513C DE O12713 D DEO12713 D DE O12713D DE O0012713 D DEO0012713 D DE O0012713D DE 391513 C DE391513 C DE 391513C
- Authority
- DE
- Germany
- Prior art keywords
- gases
- grate
- shafts
- smoldering
- firing
- 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
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B90/00—Combustion methods not related to a particular type of apparatus
- F23B90/04—Combustion methods not related to a particular type of apparatus including secondary combustion
- F23B90/06—Combustion methods not related to a particular type of apparatus including secondary combustion the primary combustion being a gasification or pyrolysis in a reductive atmosphere
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Description
Feuerung mit bewegtem Rost und Zuführung des Brennstoffes durch von den Rostgasen außen beheizte Schwelschächte zur Gewinnung von Nebenerzeugnissen. Es sind bereits Wanderrostfeuerungen bekannt, bei denen der Brennstoff durch von den Rostgasen außen beheizte Schwelschächte zur Gewinnung der Nebenerzeugnisse zugeführt wird.Firing with moving grate and supply of fuel through from Smoldering shafts heated outside the rust gases for the extraction of by-products. There are already traveling grate firing known in which the fuel by of The rust gases are supplied with externally heated smoldering shafts for the extraction of the by-products will.
Gemäß der Erfindung werden auf die Schwelschächte Vorwärmschächte aufgesetzt, in welchen die nach Beheizung der Schwelschächte abgesaugten Rost- oder Rauchgase der Wanderrostfeuerung zugeführt werden. Zweckmäßig werden die Dämpfe und Gase der Vorwärmschächte ganz oder teilweise unter den Rost geführt.According to the invention, preheating shafts are placed on the smoldering shafts placed in which the rust or Flue gases are fed to the traveling grate furnace. The vapors become useful and gases from the preheating shafts are wholly or partially guided under the grate.
Die Zeichnung zeigt eine Ausführungsform einer derartigen Vorrichtung in Abb. i in Ansicht, in Abb.2 in Draufsicht.The drawing shows an embodiment of such a device in Fig. i in view, in Fig. 2 in plan view.
Die Schwelung ist in zwei Teilvorgänge zerlegt: die Vortrocknung oder Vorschwelung in A und die eigentliche Schwelung in B; die letztere Wird durch äußere Beheizung des Zuführungsschachtes belvirkt, wobei die Heizgase bei i mit noch hoher Temperatur abgehen. Diese Abgase werden von einem Gebläse 2 angesaugt und bei 3 in den Raum A gedrückt, wo sie den Brennstoff trocknen, vorwärmen und bereits anfangen zu entgasen.The smoldering is divided into two sub-processes: the pre-drying or Pre-swelling in A and the actual swelling in B; the latter is given by external Heating of the feed chute is activated, with the heating gases at i with an even higher level Temperature go down. These exhaust gases are sucked in by a fan 2 and at 3 pressed into room A, where they dry the fuel, preheat it and already start to degas.
Die hierbei entwickelten Wasserdämpfe und die zunächst entweichenden Schwelgase werden mittels der Leitung q. ebenfalls dem Gebläse 2 zugeführt und mit den Abgasen aus i zwecks Herabsetzung der Temperatur dieser Gase gemischt. Der entsprechend dem Kohlendurchsatz entstehende Überschuß des Gemisches aus Wasserdampf, Kohlensäure und Schwefelwasserstoff und allenfalls noch anderen (von der Temperatur in A abhängigen) brennbaren Gasen wird entweder bei 5 ins Freie gelassen oder besser völlig oder teilweise durch; die Abzweigung der Druckleitung bei 6 unter den Rost geführt, wodurch die brennbaren Gase noch nutzbar gemacht und die Wasserdämpfe zur Kühlung des Rostes benutzt werden können.The water vapors developed in the process and the first escaping Carbonization gases are released by means of the line q. also supplied to the fan 2 and with mixed with the exhaust gases from i in order to lower the temperature of these gases. The accordingly Excess of the mixture of steam and carbonic acid resulting from the throughput of coal and hydrogen sulfide and possibly others (depending on the temperature in A) flammable gases are either released into the open at 5 or better completely or partially through; the branch of the pressure line at 6 led under the grate, whereby the flammable gases are still made usable and the water vapors are used to cool the grate can be used.
Eine noch bessere Wärmewirtschaft wird erzielt, wenn, wie gestrichelt dargestellt, die Abgase, nachdem sie der Beheizung des Schwelschachtes gedient haben, von i nach einem Punkte der Kesselzüge geführt werden, an dem ein größerer Unterdruck als über dem Rost herrscht, durch Leitung 7, so daß sie durch natürlichen Zug fortbewegt und an einem geeigneten Punkt mit den übrigen Verbrennungsgasen wieder vereinigt werden.An even better heat economy is achieved if, as shown in the dashed line shown, the exhaust gases after they have served to heat the smoldering shaft, from i to one point of the boiler trains at which a greater negative pressure than prevails over the grate, through line 7, so that they through natural draft and at a suitable point with the remaining combustion gases to be reunited.
Die für die Vorschwelung erforderliche Wärme dagegen wird den Abgasen der Gesamtanlage entnommen, die, aus dem Kesselschornstein durch 8 abgesaugt, von dem Gebläse 2' wiederum in gleicher Weise wie vorher bei 3 in den Raum A gedrückt werden. Die Anordnung des Kreislaufes der Gase durch diesen Raum kann die gleiche sein, wie vorher beschrieben.On the other hand, the heat required for pre-smoldering is transferred to the exhaust gases taken from the entire system, which, sucked out of the boiler chimney through 8, by the fan 2 'again pressed into space A in the same way as previously at 3 will. The arrangement of the circulation of the gases through this space can be the same be as previously described.
Der Abzug der Schwelgase aus dem, Schwelraum B erfolgt in jedem Falle an den Stellen 9; die Kohlensäule zwischen den Punkten 3 und 9 wird im allgemeinen so zu wählen sein, daß eine geringe Gasmenge von 3 nach 9 abströmt.The carbonization gases are withdrawn from the carbonization room B in any case at points 9; the column of coal between points 3 and 9 generally becomes be chosen so that a small amount of gas flows from 3 to 9.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEO12713D DE391513C (en) | 1921-12-13 | 1921-12-13 | Firing with moving grate and supply of fuel through smoldering shafts heated from the outside by the grate gases for the extraction of by-products |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEO12713D DE391513C (en) | 1921-12-13 | 1921-12-13 | Firing with moving grate and supply of fuel through smoldering shafts heated from the outside by the grate gases for the extraction of by-products |
Publications (1)
Publication Number | Publication Date |
---|---|
DE391513C true DE391513C (en) | 1924-03-10 |
Family
ID=7352974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEO12713D Expired DE391513C (en) | 1921-12-13 | 1921-12-13 | Firing with moving grate and supply of fuel through smoldering shafts heated from the outside by the grate gases for the extraction of by-products |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE391513C (en) |
-
1921
- 1921-12-13 DE DEO12713D patent/DE391513C/en not_active Expired
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