DE816224C - Tube dryers, in particular for drying coal - Google Patents
Tube dryers, in particular for drying coalInfo
- Publication number
- DE816224C DE816224C DEP10195D DEP0010195D DE816224C DE 816224 C DE816224 C DE 816224C DE P10195 D DEP10195 D DE P10195D DE P0010195 D DEP0010195 D DE P0010195D DE 816224 C DE816224 C DE 816224C
- Authority
- DE
- Germany
- Prior art keywords
- tube
- sieve
- coal
- drying coal
- dryer
- 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
- 239000003245 coal Substances 0.000 title claims description 11
- 238000001035 drying Methods 0.000 title claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
- F26B11/0404—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis with internal subdivision of the drum, e.g. for subdividing or recycling the material to be dried
- F26B11/0418—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis with internal subdivision of the drum, e.g. for subdividing or recycling the material to be dried the subdivision consisting of a plurality of parallel tubes, e.g. through which the material to be dried is conveyed in single or multi-pass fashion
- F26B11/0422—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis with internal subdivision of the drum, e.g. for subdividing or recycling the material to be dried the subdivision consisting of a plurality of parallel tubes, e.g. through which the material to be dried is conveyed in single or multi-pass fashion the tubes having internal members
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Drying Of Solid Materials (AREA)
Description
In der Kohlen-, insbesondere der Braunkohlenindustrie, kennt man die verschiedensten Arten der Kohletrocknung, die dann besonders schwierig wird, wenn Kohle verschiedener Kornklassen ihre Feuchtigkeit durch Verdampfen des Wassers` nicht gleichmäßig abgibt.In the coal, especially the lignite industry, they are known various types of coal drying, which becomes particularly difficult when Coal of different grain classes their moisture by evaporation of the water` does not deliver evenly.
Ein geeignetes Mittel, um den einzelnen Korngrößen bzw. -fraktionen, am Schluß der Trocknung einen möglichst gleichen Wassergehalt zu geben, stellt der Tellertrockner dar. Dieses gleiche Resultat z. B. beim Röhrentrockner zu erreichen, ist bis heute noch nicht gelungen. Man hat zwar in Röhrentrocknern schon Wendeleisten der verschiedensten Art eingebaut, desgleichen Walzknüppel und verschiedenes andere mehr. In sehr vielen Fällen ist man auch dazu übergegangen, die schon einmal getrocknete, aber noch zu feuchte grobe Kohle in einem besonderen Trockner nachzutrocknen. An anderen Stellen leitet man diese grobe Kohle über besondere Tellertrockner mit oder ohne Walzen und anschließenden Kühlsystemen. Besonders diese letztgebannten Konstruktionen aber vergrößern die Kompliziertheit der Fabrikanlage und haben in den meisten Fällen noch den Nachteil, daß das nachbehandelte Kohlekorn sich allmählich verkleinert, um zum Schluß den an sich schon großen Anteil des Feinkorns noch mehr zu vergrößern, wodurch wiederum der Staub- bzw. Schlotverlust größer wird als allgemein zulässig ist.A suitable means of dividing the individual grain sizes or fractions, to give the same water content as possible at the end of the drying, the Plate dryer. This same result z. B. to reach the tube dryer, has not yet succeeded. You already have turning strips in tube dryers of the most varied kinds built in, as well as rolling billets and various other things more. In very many cases one has also gone over to the already dried, but still too moist coarse coal to be dried in a special dryer. At In other places this coarse coal is passed through special plate dryers with or without rollers and subsequent cooling systems. Especially these last-banned constructions but add to the complexity of the factory facility and in most cases have still the disadvantage that the after-treated grain of coal gradually shrinks, in order to finally enlarge the already large proportion of fine grain, which in turn causes the loss of dust and chimneys to be greater than is generally permissible is.
Die Erfindung betrifft nun eine Einrichtung für Röhrentrockner, die es gestattet, die Kohle in einem Arbeitsgang ohne Vergrößerung des Anteils an Feinkohle als ursprünglich vorhanden, mit gleichem Wassergehalt in allen Fraktionen zu trocknen.The invention now relates to a device for tube dryers that it allows the coal in one operation without increasing the proportion of fine coal than originally present, to be dried with the same water content in all fractions.
Die Erfindung besteht darin, daß in jedem schräg gelagerten, beheizbaren Rohr eines Röhrentrockners an der Rohrinnenwand Stauringe angeordnet sind, welche mit Hubschaufeln o. dgl. versehen sind. Je zwei dieser Stauringe werden durch eine Siebtrommel kleineren Durchmessers verbunden, in deren Auslaufende ein Ableitrohr hineinragt, das zum Aufnehmen des durch die Siebtrommel in das Drehrohr zurückgefallenen Feinkorns dient.The invention consists in that in each inclined, heated Tube of a tube dryer are arranged on the inner wall of the tube, which are provided with lifting shovels or the like. Two of these storage rings are replaced by one Screen drum of smaller diameter connected, in the outlet end of a discharge pipe protrudes, the one that has fallen back into the rotary tube through the sieve drum Fine grain is used.
Dabei ist es zweckmäßig, wenn in jedem Drehrohr mehrere Siebsätze vorzugsweise mit verschieden großen Sieböffnungen, zweckmäßigerweise auch abstandsveränderlich, angeordnet sind.It is useful if there are several sets of sieves in each rotary tube preferably with different sized sieve openings, expediently also variable in distance, are arranged.
In der Zeichnung ist eine als Beispiel dienende Ausführungsform der Erfindung dargestellt.In the drawing, an exemplary embodiment is shown in FIG Invention shown.
Ein Röhrentrockner, insbesondere zur Trocknung von Kohle, weist in
einem schräg liegenden, beheizbaren Rohr a hintereinander zwei Siebsätze mit verschieden
großen, zweckmäßigerweise abstandsveränderlichen Sieböffnungen auf.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP10195D DE816224C (en) | 1948-10-02 | 1948-10-02 | Tube dryers, in particular for drying coal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP10195D DE816224C (en) | 1948-10-02 | 1948-10-02 | Tube dryers, in particular for drying coal |
Publications (1)
Publication Number | Publication Date |
---|---|
DE816224C true DE816224C (en) | 1951-10-08 |
Family
ID=7362748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP10195D Expired DE816224C (en) | 1948-10-02 | 1948-10-02 | Tube dryers, in particular for drying coal |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE816224C (en) |
-
1948
- 1948-10-02 DE DEP10195D patent/DE816224C/en not_active Expired
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