DE1608007A1 - Fluid bed device for crystalline substances - Google Patents
Fluid bed device for crystalline substancesInfo
- Publication number
- DE1608007A1 DE1608007A1 DE19681608007 DE1608007A DE1608007A1 DE 1608007 A1 DE1608007 A1 DE 1608007A1 DE 19681608007 DE19681608007 DE 19681608007 DE 1608007 A DE1608007 A DE 1608007A DE 1608007 A1 DE1608007 A1 DE 1608007A1
- Authority
- DE
- Germany
- Prior art keywords
- fluidized bed
- bed device
- stage
- crystalline substances
- roller
- 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
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
- B01J8/36—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 through which there is an essentially horizontal flow of particles
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crushing And Grinding (AREA)
Description
Wirbelbetteinrichtung för kristalline Stoffe Die vorliegende rfindung betrifft eine Wirbelbetteinrichtung zum Kalzinieren, Trocknen oder Köhlen kristalliner Stoffe. Derartige Wirbelbetteinrichtungen sind schon bekannt. Ihr Einsatz für die Behandlung kristalliner Stoffe ist in vielen Fällen dadurch erschwert, da# sich im Wirbelbett Gutsknoten bilden, die über das Stauwehr nicht hinaus getragen werden und nach einiger Zeit das Wirbelbett, vom Boden beginnend, zusetzen.Fluidized bed device for crystalline substances The present invention relates to a fluidized bed device for calcining, drying or charring crystalline Fabrics. Such fluidized bed devices are already known. Your commitment to the Treatment of crystalline substances is made more difficult in many cases because # Form good knots in the fluidized bed that are not carried beyond the weir and after a while, clog the fluidized bed, starting from the floor.
Man jiat schon vorgeschlagen, die Wirbelbettsohicht durch irgendwelche sich bewegende Organe ständig umzurühren, jedoch konnte hiermit die Bildung der Knoten nicht vermieden . werde n.It has already been suggested that the fluidized bed pass through any moving organs to stir constantly, however, this could prevent the formation of the Knots not avoided. will.
Erfindungsgemäß wird vorgeschlagen, den Wirbelbettboden in an sich beka1Bnter Weise stufenartig auszubilden und vor den Übergang des behandelnden Stoffes auf die tiefere Wirbelbettstufe eine Binrich-tung zurn Zerkleinern der sich gebildeten Knoten anzuordnen. Viele durchgeführte Versuche, z.B. mit Natriumsulfat, haben ergeben, da# es mit dieser einfachen Maßnahme möglich ist, ein Endprodukt zu erhalten, das keinerlei Knoten aufweist. Zwar tritt in der ersten Stufe- die uekannte Knotenbildung ein, nach Zerkleinerung der Knoten haben die Salze jedoch, bedingt durch die inzwischen erfolgte Abtrocknung, die Tendenz zum Zusammenklumpen verloren.According to the invention it is proposed that the fluidized bed floor in itself Well-known way to train in stages and before the transition of the treated substance on the lower fluidized bed stage a device for comminuting the formed To arrange nodes. Many tests carried out, e.g. with sodium sulfate, have shown because # with this simple measure it is possible to obtain an end product that has no knots whatsoever. It is true that the unknown knot formation occurs in the first stage one, after crushing the knot, the salts have, however, due to the meanwhile drying took place, the tendency to clump together lost.
Die Zerkleinerungseinrichtung kann aus einer in Richtung der Gutsbewegung umlaufenden Walze bestehen, die als Ende der ersten Wirbelbettstufe so angebracht ist, daß zwischen ihr und dem Boden ein Spalt verbleibt. In diesem Falle dient die Walze gleichzeitig als Stauwehr. In Anpassung an das jeweilige Behandlungsgut ist es ratsam, die Walze höhenverstellbar zu gestalten.The shredding device can consist of one in the direction of the movement of the material rotating roller, which is attached as the end of the first fluidized bed stage is that there remains a gap between it and the floor. In this case, the Roller doubles as a weir. In adaptation to the respective item to be treated it is advisable to make the roller height adjustable.
Es kann aber auch zweckmä#ig sein, die Zerkleinerungseinrichtung aus zwei RJalzen zu bilden, wobei sich die erste in Uhrzeigerrichtung und die zweite entgegengesetzt dreht.However, it can also be useful to turn the shredding device off to form two reels, the first moving clockwise and the second rotates in the opposite direction.
Die Erfindu;ig ist in der Zeichnung in zwei Ausführungsbeispielen erläutert. Hierin zeigen: Fig. 1 eine Wirbelbetteinrichtung mit einer Walze als Zerkleinerungseinrichtung, Fig. 2 eine Wirbelbetteinrichtung, bei der die Zerkleinerung der Knoten durch zwei Walzen geschieht.The invention is shown in the drawing in two exemplary embodiments explained. 1 shows a fluidized bed device with a roller as Comminution device, FIG. 2 shows a fluidized bed device in which the comminution the knot is done by two rollers.
1 ist der stgufenartig abgesetzte Wirbelbettboden, dem der 'zu behandelnde Stoff durch die Aufgabevorrichtung 2 zugeführt wird. Unter dem Wirbelbettboden befindet sich der Luftanströmkanal 3. Die Aufenthaltszeit des Stoffes in der Binrichtung kann durch das Stauwehr 4, das in bekannter Weise huhenverstellbar eingerichtet ist, geregelt werden. In Fig. 1 besteht die Zerkleinerungseinrichtung aus einer umlaufenden Walze 5, während in Fig. 2 die Zerkleinerung der knoten durch' die beiden gegenläu@igen Walzen 6 erfolgt. Im übrigen ist in Fig. 2 gezeigt, daß das stufenweise Absetzen des Wirbelbettbodens auch so erfolgen kann, daß zwei getrennte Wirbelbetten mit separaten Luftanströmkanälen 3 entstehen.1 is the stepped fluidized bed floor to which the 'to be treated Substance is fed through the feed device 2. Located under the fluidized bed floor the air inlet duct 3. The time the substance stays in the bin can through the weir 4, which is set up adjustable in a known manner is to be regulated. In Fig. 1, the shredding device consists of a rotating roller 5, while in Fig. 2 the crushing of the knot by 'the two counter-rotating rollers 6 takes place. Incidentally, it is shown in Fig. 2 that this is done in stages Deposition of the fluidized bed floor can also be done in such a way that two separate fluidized beds arise with separate air inflow channels 3.
Selbstverständlich ist es noch, daß bei Wirbelbetten, die mehr als eine zweistufige Absetzung aufweisen, am Ende jeder Stufe eine Zerkleinerungsvorrichtung vorzusehen.It goes without saying that in the case of fluidized beds that are more than have a two-stage settling, at the end of each stage a crusher to be provided.
Patentansprüche: Patent claims:
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB0096295 | 1968-01-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1608007A1 true DE1608007A1 (en) | 1970-10-29 |
Family
ID=6988623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19681608007 Pending DE1608007A1 (en) | 1968-01-19 | 1968-01-19 | Fluid bed device for crystalline substances |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1608007A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2356060A1 (en) * | 1973-11-09 | 1975-05-15 | Rheinstahl Ag | FLUID BED FURNACE FOR THE INCINERATION OF PARTIALLY DEWATERED SLUDGE |
-
1968
- 1968-01-19 DE DE19681608007 patent/DE1608007A1/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2356060A1 (en) * | 1973-11-09 | 1975-05-15 | Rheinstahl Ag | FLUID BED FURNACE FOR THE INCINERATION OF PARTIALLY DEWATERED SLUDGE |
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