CH110335A - Method and device for drying lignite and other water-containing substances. - Google Patents
Method and device for drying lignite and other water-containing substances.Info
- Publication number
- CH110335A CH110335A CH110335DA CH110335A CH 110335 A CH110335 A CH 110335A CH 110335D A CH110335D A CH 110335DA CH 110335 A CH110335 A CH 110335A
- Authority
- CH
- Switzerland
- Prior art keywords
- dried
- dryer
- air
- heating medium
- drying
- Prior art date
Links
- 238000001035 drying Methods 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 6
- 239000003077 lignite Substances 0.000 title claims description 4
- 239000000126 substance Substances 0.000 title claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 4
- 239000000463 material Substances 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000001419 dependent effect Effects 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Drying Of Solid Materials (AREA)
Description
Verfahren und Vorrichtuug zum Trocknen von Braunkohle und andern wasserhaltigen Stoffen. Die Erfindung betrifft ein Verfahren zum Trocknen von Braunkohle und andern wasser haltigen Stoffen, nach welchem das zu trock nende Gut selbst als Filtermasse für ein gas förmiges Heizmedium, bevor letzteres das zu trocknende Gut verlässt, benützt wird. Erfin dungsgemäss wird das zu trocknende ununter brochen zu- und abgeführte Gut durch einen von luftdurchlässigen Wänden gebildeten Zwi schenraum, den das Heizmedium durchströmt und der als Vortrockner wirkt, bewegt, .um dann einem Haupttrockner zugeführt zu wer den, den es im Gegenstrom zum Heizmedium passiert.
Vorteilhaft führt man einen Zusatz von Kaltluft an der Austrittsstelle des Trocken gutes aus dem Haupttrockner in letzteren ein.
Fig. 1 der beiliegenden, schematischen Zeichnung stellt ein Ausführungsbeispiel einer Vorrichtung zur Durchführung dieses Verfah rens, welche Vorrichtung neben dem Verfah ren den Gegenstand vorliegender Erfindung bildet, im Schnitt dar.
Das Nassgut gelangt durch einen Trichter a in einen von zwei gleichachsig angeordneten, luftdurchlässigen senkrechten Trommeln U und c gebildeten Zwischenraum ra'. Von den beiden Trommeln ist entweder die äussere feststehend und die innere drehbar oder beide sind in gleicher oder entgegengesetzter Rich tung drehbar oder beide sind feststehend, während das Bodenblech d drehbar angeordnet zu denken ist.
Durch eine Öffnung des Bodenbleches d strömendes Heizmedium durchquert den Zwi schenraum a' undbewirkteine vorläufige Trock nung des Nassgutes, wobei die mitgerissenen Staubteilchen von der als Filtermasse wir kenden nassen Kohle zurückgehalten werden.
Aus dem Vortrockner gelangt das Nassgut in den Haupttrockner, der von zwei Gruppen treppenförmiger einen Doppelkegel bildender Tellerflächen e und f gebildet wird. Teller trockner e, f und Filter U, c sind in einem gemeinsamen zylindrischen Gehäuse g unter gebracht. Eine zwischen den Tellerflächen<I>e, f</I> eingebaute Blechhaube h bewirkt im Innern des Haupttrockners die Führung des Heiz- mediums, das durch das Rohr i zugeführt wird.
Zwischen dem eigentlichen Trockenraum und einer Austragvorrichtung k für das ge- trocknete Gut ist ein freier Raum<B>in</B> einge schaltet. Der Mantel o der Austragvorrich- tung 1s ist mit zum Beispiel durch Schieber verschliessbaren, oben offenen Taschen n ver sehen, die den Zutritt von Luft gestatten,
aber ein Herausfallen des Trockengutes verhindern. Im Raum 7n wird das in freiem Fall nieder rieselnde warme Trockengut von dem durch die Taschen n eintretenden kalten LuftstroIn getroffen.
Man könnte die Flächen des Haupttrock- ners auch kegelförmig ausbilden, um eine bessere Verteilung des Trockengutes im Haupt trockner zu erzielen (Fig. 2).
Process and device for drying lignite and other water-containing substances. The invention relates to a method for drying lignite and other water-containing substances, according to which the material to be dried is itself used as a filter material for a gaseous heating medium before the latter leaves the material to be dried. In accordance with the invention, the material to be dried is continuously supplied and discharged through an interstitial space formed by air-permeable walls through which the heating medium flows and which acts as a pre-dryer. To then feed a main dryer to who it is in countercurrent to the heating medium happens.
Advantageously, an addition of cold air is introduced into the latter at the exit point of the drying goods from the main dryer.
Fig. 1 of the accompanying schematic drawing shows an embodiment of a device for performing this procedural rens, which device in addition to the procedural Ren forms the subject of the present invention, in section.
The wet material passes through a funnel a into a space ra 'formed by two coaxially arranged, air-permeable vertical drums U and c. Of the two drums, either the outer one is stationary and the inner one is rotatable, or both are rotatable in the same or opposite direction, or both are stationary, while the bottom plate is to be thought of as being rotatable.
Heating medium flowing through an opening in the base plate d crosses the intermediate space a 'and causes the wet material to be temporarily dried, with the dust particles being held back by the wet carbon acting as the filter material.
The wet material passes from the pre-dryer into the main dryer, which is formed by two groups of step-shaped double-cone plate surfaces e and f. Dish dryer e, f and filter U, c are placed in a common cylindrical housing g. A sheet metal hood h installed between the plate surfaces <I> e, f </I> effects the guidance of the heating medium inside the main dryer, which is fed through the pipe i.
A free space <B> in </B> is inserted between the actual drying space and a discharge device k for the dried goods. The jacket o of the discharge device 1s is provided with, for example, open-top pockets n which can be closed by slides and which allow air to enter
but prevent the items to be dried from falling out. In the space 7n, the warm dry material which trickles down in free fall is hit by the cold air flow entering through the pockets n.
The surfaces of the main dryer could also be designed to be conical in order to achieve better distribution of the material to be dried in the main dryer (FIG. 2).
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH110335T | 1924-04-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH110335A true CH110335A (en) | 1925-06-01 |
Family
ID=4369368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH110335D CH110335A (en) | 1924-04-12 | 1924-04-12 | Method and device for drying lignite and other water-containing substances. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH110335A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0407278A1 (en) * | 1989-07-06 | 1991-01-09 | François Laurenty | Tower for granular products |
| CN119245316A (en) * | 2024-12-09 | 2025-01-03 | 新乡市创佳新材料有限公司 | An intelligent drying box for drying nickel carbonate |
-
1924
- 1924-04-12 CH CH110335D patent/CH110335A/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0407278A1 (en) * | 1989-07-06 | 1991-01-09 | François Laurenty | Tower for granular products |
| FR2652153A1 (en) * | 1989-07-06 | 1991-03-22 | Laurenty Francois | METHOD AND DRYING TOWER OF GRAIN PRODUCTS. |
| US5111596A (en) * | 1989-07-06 | 1992-05-12 | Francois Laurenty | Drying process and tower for products in grain form |
| CN119245316A (en) * | 2024-12-09 | 2025-01-03 | 新乡市创佳新材料有限公司 | An intelligent drying box for drying nickel carbonate |
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