DE457179C - Process for uniform heating of grainy substances - Google Patents
Process for uniform heating of grainy substancesInfo
- Publication number
- DE457179C DE457179C DEB120603D DEB0120603D DE457179C DE 457179 C DE457179 C DE 457179C DE B120603 D DEB120603 D DE B120603D DE B0120603 D DEB0120603 D DE B0120603D DE 457179 C DE457179 C DE 457179C
- Authority
- DE
- Germany
- Prior art keywords
- percent
- uniform heating
- electrodes
- grainy
- substances
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
- B01J8/42—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed subjected to electric current or to radiations this sub-group includes the fluidised bed subjected to electric or magnetic fields
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Carbon And Carbon Compounds (AREA)
Description
Verfahren zur gleichmäßigen Erhitzung körniger Substanzen.Method of uniform heating of granular substances.
Es wurde gefunden, daß man körnige Substanzen sehr gleichmäßig zwischen zwei Elektroden erhitzen kann, wenn man während des Erhitzens durch das körnige Material Gase derartig hindurchpreßt, daß dieses von den Gasen dauernd in Bewegung gehalten wird. It has been found that granular substances are very evenly distributed between two electrodes can heat up if you pass through the grainy while heating Material presses gases through in such a way that the gases are constantly in motion is held.
Einc örtliche Überhitzung des Ofengutes oder der Elektroden ist hierbei ausgeschlossen.A local overheating of the furnace or the electrodes is here locked out.
Beispiel. Example.
In einem Schachtofen von 27 X 27 cm Querschnitt liegt auf einer für Gase durchrissigen Schicht von Schamottekörnern eine rund 60 cm hohe Schicht körniger glühender Grude von I bis lo mm Korngröße, in die in einem Abstand von 20 cm zwei Elektroden aus Stahl von je 27 X 20 cm = 540 cm2 Fläche tauchen. Es wird nun auf etwa 250° überhitzter Wasserdampf in solcher Menge eingeleitet, daß <lie heiße Kohle voll dem Dampf durchmischt und bewegt wird, und an die Elektroden ein Wechselstrom von 380 Volt Spannung angelegt. Es treten zuerst etwa 80 Ampere durch die in Bewegung befindliche Kohle, deren Temperatur rasch auf 750° steigt. Hierbei entsteht ein Wassergas mit etwa 23 Prozent CO2, 8 Prozent CO, 62 Prozent H2, 2 Prozent CH4 und 5 Prozent N2. Alsdann wird stärker Wasserdampf eingeblasen, und es stellt sich nun bei 380 VoltElektrodenspannung eine mittlere Stromstärke von 60 Ampere ein. Die Temperatur im Ofen sinkt auf 6500 und bleibt konstant; am Ausgang des Ofens entweichen stündlich etwa 20 cbm Wassergas mit durchschnittlich 30 Prozent CO2, 0,5 Prozent CO, 63 Prozent H2. 2,2 Prozent CM4 und 4,3 Prozent @2. In a shaft furnace with a cross section of 27 X 27 cm lies on one for Gaseous cracked layer of fireclay grains a roughly 60 cm high layer of granular glowing grude from 1 to lo mm grain size, in which two at a distance of 20 cm Immerse electrodes made of steel with an area of 27 x 20 cm = 540 cm2 each. It is now on about 250 ° superheated steam introduced in such an amount that <lie hot Coal is fully mixed and moved by the steam, and an alternating current is applied to the electrodes of 380 volts applied. At first about 80 amps pass through the movement coal, the temperature of which rises rapidly to 750 °. This creates a Water gas with about 23 percent CO2, 8 percent CO, 62 percent H2, 2 percent CH4 and 5 percent N2. Then more steam is blown in, and it now arises at an electrode voltage of 380 volts, an average current strength of 60 amperes. the The temperature in the furnace drops to 6500 and remains constant; escape at the exit of the furnace Every hour around 20 cbm of water gas with an average of 30 percent CO2, 0.5 percent CO, 63 percent H2. 2.2 percent CM4 and 4.3 percent @ 2.
Das Wassergas führt aus dem Ofen den größten Teil der feinen, durch die Bewegung der Grudestückchen sich abreibenden Asche fort, die bei ruhender Kohlefüllung sich im Ofen, und zwar gerade zwischen den Elektroden, abscheiden würde. Die grobe Schlacke sinkt in der sich bewegenden Kohle nach unten, setzt sich unterhalb der Elektroden auf dem Steinrost ab und wird dort ab und zu entfernt. Zwischen den Elektroden kann sich also keine Asche absetzen.The water gas carries most of the fine, through from the furnace the movement of the ashes that rub off the debris, that of the still coal filling would deposit in the furnace, specifically between the electrodes. The rough Slag sinks down in the moving coal, settles below the Electrodes on the stone grate and are removed there from time to time. Between the electrodes so no ash can settle.
Alaun kann auch mit Hilfe des elektrischen Flammenbogens auf analoge Weise körnige Substanzen sehr gleichmäßig erhitzen. In diesem Falle läßt man zweckmäßig den Flammenbogen zwischen zwei Kohleelektroden direkt an der Oberfläche des bewegten körnigen Gutes übergehen. Das Verfahren hat den großen Vorteil, daß auch Materialien, die den elektrischen Strom sehr schlecht oder nicht leiten, auf elektrischem Wege erhitzt werden können. Alum can also be converted to analog with the help of the electric flame arc Heat granular substances very evenly. In this case it is expedient to leave the flame arc between two carbon electrodes directly on the surface of the moving grainy good. The process has the great advantage that materials, that conduct electricity very poorly or not at all, by electrical means can be heated.
Das verfahren ist insbes,nclere fiir A-laterial von etwa i hi romm Korngröße geeignet und kann z.B. Anwendung finden bei der kontinuierlichen Herstellung von Wassergas oder bei der Herstellung von Schwefelkohlenstoff aus chwefel und feinköruiger Kohle; auch Kontaktmassen können auf die angegebene Weise erhitzt werden. Das Verfahren läßt sich auch beim Arbeiten unter Druck anwenden. The procedure is particularly important for material from around i romm Grain size suitable and can be used, for example, in continuous Production of water gas or in the production of carbon disulfide from sulfur and fine grain coal; contact masses can also be heated in the specified manner will. The method can also be used when working under pressure.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB120603D DE457179C (en) | 1925-07-01 | 1925-07-02 | Process for uniform heating of grainy substances |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE617004X | 1925-07-01 | ||
DEB120603D DE457179C (en) | 1925-07-01 | 1925-07-02 | Process for uniform heating of grainy substances |
Publications (1)
Publication Number | Publication Date |
---|---|
DE457179C true DE457179C (en) | 1928-03-09 |
Family
ID=25945590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB120603D Expired DE457179C (en) | 1925-07-01 | 1925-07-02 | Process for uniform heating of grainy substances |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE457179C (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1081426B (en) * | 1957-04-25 | 1960-05-12 | Metal Chlorides Corp | Device for carrying out reactions between gases and solids |
DE1099514B (en) * | 1958-12-12 | 1961-02-16 | Shawinigan Chem Ltd | Process for the production of hydrocyanic acid |
DE1158948B (en) * | 1960-07-26 | 1963-12-12 | British Titan Products | Process for the oxidation of metal halides and / or halides of metal-like elements in the vapor phase |
DE1186834B (en) * | 1958-09-08 | 1965-02-11 | Shawinigan Chem Ltd | Apparatus for generating high temperatures by electrical resistance heating in a fluidized bed of electrically conductive particles |
DE1291323B (en) * | 1960-07-12 | 1969-03-27 | Shawinigan Chem Ltd | Process for the production of hydrogen and carbon |
DE3035715A1 (en) * | 1980-01-22 | 1981-07-23 | Gosudarstvennyj naučno-issledovatel'skij energetičeskij institut imeni G.M. Kržižanovskogo, Moskva | Synthesis gas prodn. from solid fuel - by reaction with oxidant in electric arc |
-
1925
- 1925-07-02 DE DEB120603D patent/DE457179C/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1081426B (en) * | 1957-04-25 | 1960-05-12 | Metal Chlorides Corp | Device for carrying out reactions between gases and solids |
DE1186834B (en) * | 1958-09-08 | 1965-02-11 | Shawinigan Chem Ltd | Apparatus for generating high temperatures by electrical resistance heating in a fluidized bed of electrically conductive particles |
DE1099514B (en) * | 1958-12-12 | 1961-02-16 | Shawinigan Chem Ltd | Process for the production of hydrocyanic acid |
DE1291323B (en) * | 1960-07-12 | 1969-03-27 | Shawinigan Chem Ltd | Process for the production of hydrogen and carbon |
DE1158948B (en) * | 1960-07-26 | 1963-12-12 | British Titan Products | Process for the oxidation of metal halides and / or halides of metal-like elements in the vapor phase |
DE3035715A1 (en) * | 1980-01-22 | 1981-07-23 | Gosudarstvennyj naučno-issledovatel'skij energetičeskij institut imeni G.M. Kržižanovskogo, Moskva | Synthesis gas prodn. from solid fuel - by reaction with oxidant in electric arc |
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