EP1394489A2 - Anlage zum Trocknen und Aufbereiten von rieselfähigem mineralischem Gut - Google Patents
Anlage zum Trocknen und Aufbereiten von rieselfähigem mineralischem Gut Download PDFInfo
- Publication number
- EP1394489A2 EP1394489A2 EP03019112A EP03019112A EP1394489A2 EP 1394489 A2 EP1394489 A2 EP 1394489A2 EP 03019112 A EP03019112 A EP 03019112A EP 03019112 A EP03019112 A EP 03019112A EP 1394489 A2 EP1394489 A2 EP 1394489A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- shaft
- installation
- rotary drum
- circumference
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/14—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge
- F27B7/16—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means
- F27B7/161—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means the means comprising projections jutting out from the wall
- F27B7/162—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means the means comprising projections jutting out from the wall the projections consisting of separate lifting elements, e.g. lifting shovels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/34—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/32—Arrangement of devices for charging
- F27B7/3205—Charging
- F27B2007/3211—Charging at the open end of the drum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/36—Arrangements of air or gas supply devices
- F27B7/362—Introducing gas into the drum axially or through the wall
- F27B2007/367—Introducing gas into the drum axially or through the wall transversally through the wall of the drum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/33—Arrangement of devices for discharging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/36—Arrangements of air or gas supply devices
- F27B7/362—Introducing gas into the drum axially or through the wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/08—Screw feeders; Screw dischargers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/02—Supplying steam, vapour, gases, or liquids
Definitions
- the invention relates to a plant for drying and processing free-flowing mineral goods, especially coal according to the generic term of claim 1.
- Mineral material falls in the extraction and Processing mostly in the form of a mixture of lumpy or granular Good and fine-grained and dusty good.
- predetermined fractions for example general cargo, coarse-grained, fine-grained and to be able to separate dusty material
- the proportion above is first a predetermined grain diameter as a piece goods by sieving separated.
- the Sieve passage to be dried first.
- As an aggregate for drying mineral mixtures have proven their worth.
- Rotary drums for drying moist mineral goods are in Direction of conveyance of the material to be dried inclined drums through which either in countercurrent or in cocurrent to the material to be dried hot flue gases are introduced from an incinerator.
- Such systems are operated with direct current when it is fresh Released damp material with the freshly introduced hot flue gases Achieve rapid drying success should, while the countercurrent process is used, for example, if the already pre-dried material to drive out the last one Residual moisture with the hot flue gas in the state of the highest Drying capacity should be brought into contact.
- the technical problem underlying the invention is one Plant for drying and processing free-flowing mineral goods develop in which the intensity of stabilization is high and good Environmental compatibility is given.
- the system according to the invention has the advantage that the moist mixture which is added is brought into contact with the fresh, not yet cooled, hot flue gases immediately upon being placed in the rotary drum and is heated in a shock-like manner. As a result, the soft grains, which preferentially absorb water, decay through decrepitation.
- the material to be dried is lifted into a position in the upper area of the rotating drum by the internals, in order then to fall down over the largest possible distance in the drum, with further stabilization occurring.
- the flue gas stream sucked in the conveying direction forms a strong flow, which captures and carries the dusty and fine-grained components. The flow rate is increased by the Venturi installation.
- the bypass for conveying air in the drum jacket ensures that additional conveying air is drawn in from the environment when the vacuum in the drum is greater, without this additional conveying air disrupting the air / fuel mixture in the incineration system and thus the optimal combustion, which also very significantly additional NO x formation is avoided.
- the subclaims relate to advantageous refinements. Because of the engagement of a speed-controlled fan is influencing the suction and thus of the negative pressure in the drum advantageously possible. This can also Intensity of the stabilization can be influenced. Because of the venturi installation sucked gas streams are dust-laden, is only partially by the The formation of the guiding surfaces means that no materials are used in the Venturi installation accumulate or build up, which increases the flow resistance in the drum would increase.
- the construction of the internals as alternating straight plates and alternating plates bent in the longitudinal direction to form a pocket causes a Mixing the material to be dried and lifting the material drying goods when rotating the drum up to the top of the drum volume.
- the formation of the upward gas flow in the shaft leads to a wind sifting of the discharged goods in such a way that granular material falls down against the gas flow, while the fine grain and dusty material with the gas flow up to the transfer device in a dedusting system is operated.
- the rotary drum 1 is a sectional side view shown. In the illustration, one is to the left of the rotary drum 1 Combustion device 2 is shown schematically.
- the flue gas stream of the combustion device the is represented by a large arrow in the direction of flow and the Rotary drum 1 leaves the shaft 6 on the outlet side and there after is led above to the transfer device 22, which leads to a dedusting system leads.
- a fan 7 is arranged behind the transfer device 22 and is suitable for a corresponding negative pressure and suction in the rotary drum 1 and in Shaft 6 provides. In co-current with the flue gas flow with the Entry device 23 the material to be dried into the rotary drum 1 given up.
- the Drum shell designed as transport blades 3 internals in the Area arranged, which is shown hatched in the drawing.
- the weird built-in transport blades 3 have a curvature that is strongly in Has direction of action acting component.
- At the transport blades 3 are built-in blades, which in Rows are arranged one behind the other and alternately straight plates 4 and have plates 5 bent in the longitudinal direction to form pockets.
- the straight ones Plates 4 effect the mixing of the material to be dried.
- the bent plates 5 take in a position in the lower drum area the material to be dried and lift it when the rotary drum 1 rotates by practically 180 ° up to the top drum area, from where that to drying goods falling down over a great height.
- the negative pressure generated with the help of the fan 7 creates a Gas flow in the rotating drum, which is essentially the flue gases of the Combustion device 2 comprises.
- This gas flow is through the coaxial Venturi installation 8 performed, whereby the flow rate is increased.
- Fine-grained and dust-like particles are detected and discharged into the shaft 6.
- At the discharge end of the rotary drum 1 is also the lumpy and granular dry goods are discharged into the shaft. Since in Shaft 6 is a vertical flow, it acts as a Air classifier and leads the fine-grained and dusty parts of the dried goods with themselves up to the transfer device 22, from where the Dust and fine grain loaded gas stream to a downstream Dedusting system is performed.
- the rotary drum is inclined and has an angle ⁇ in the conveying direction two longitudinally spaced circumferential rings 18 on which the Rotary drive 19 attacks.
- the rear circumferential ring 18 rolls in the conveying direction from a stop wheel 20, which is rotatably mounted, thereby preventing is that the rotary drum is moved axially in the conveying direction.
- the Entry device 23 and the discharge device 21 can both as a belt as well as a snail, with a snail advantages in Has seal.
- FIG. 2 the one shown in FIG. 1 by a dash-dotted line Section II shown on an enlarged scale showing the structure of the bypass 9 in the drum jacket shows.
- an opening 10 is arranged in the drum shell, which from Circumferential box 16 is covered.
- Several of the openings 10 can be distributed around the circumference, total of a gastight annular Circumferential box 16 are covered.
- Is over a coaxial double jacket 24 the box 16 connected to a second peripheral box 17, the Double jacket 24 an annular gap 14 between the drum jacket and Double jacket 24 forms.
- the second circumferential box 17 is also at least one opening 12 is arranged to the environment through a outside biased flap 13 is sealed inside.
- the two Circumferential boxes 16 and 17 and the double jacket 24 have a Thermal insulation 15, which is hatched in the illustration Stripe is shown.
- the mode of operation of the bypass is such that with a corresponding Vacuum in the rotary drum 1, which is at least equal to or greater than
- the biasing force of the flap 13 is the opening 12 by suction of the flap 13 is released so that ambient air is sucked in and as a result of Heat radiation through the drum jacket preheated into the rotating drum be sucked in.
- Fig. 3 the structure of the coaxial venturi 8 is shown schematically.
- the guide surfaces are only partially formed, so that sufficient free flow cross-section between the formed guiding surfaces remains. This avoids that the trained guide surfaces attaches too much of the dust load of the gas flow and possibly builds up what otherwise lead to an undesirable increase in flow resistance could.
- the proportion of guiding surfaces designed is sufficient to cover the gas flow center and the flow velocity in the manner of a Venturi nozzle increase.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
Description
- Fig. 1
- in schematischer Seitenansicht eine Drehtrommel,
- Fig. 2
- den Ausschnitt II aus Fig. 1 in vergrößertem Maßstab und
- Fig. 3
- in vergrößerter und perspektivischer Darstellung einen Venturieinbau.
- 1
- Drehtrommel
- 2
- Verbrennungseinrichtung
- 3
- Trommeleinbauten, Transportschaufeln
- 4
- Trommeleinbauten, gerade Platten
- 5
- Trommeleinbauten, abgebogene Platten
- 6
- Schacht
- 7
- Ventilator
- 8
- Venturieinbau
- 9
- Bypass
- 10
- Öffnung im Trommelmantel
- 12
- Öffnung im Umfangskasten
- 13
- nach außen vorgespannte Klappe
- 14
- Ringspalt
- 15
- Wärmeisolierung
- 16
- gasdichter Umfangskasten
- 17
- Umfangskasten
- 18
- Umfangsringe
- 19
- Drehantrieb
- 20
- Anschlagrad
- 21
- Austragsvorrichtung
- 22
- Überleiteinrichtung
- 23
- Eintragsvorrichtung
- 24
- Doppelmantel
- α
- Neigungswinkel Drehtrommel
Claims (10)
- Anlage zum Trocknen und Aufbereiten von rieselfähigem mineralischem Gut mit einer Drehtrommel (1), die in Förderrichtung des zu behandelnden Gutes geneigt und mit Einbauten (3, 4, 5) am Innenumfang versehen ist, wobei im vorderen Einführungsbereich für das zu behandelnde Gut als Einbauten Transportschaufeln (3) angeordnet sind, und wobei das Auslaßende der Drehtrommel (1) abdichtend an einen Schacht (6) angeschlossen ist, der das aus der Drehtrommel (1) austretende Gut und den Gasstrom übernimmt,
einer Verbrennungseinrichtung (2), deren Rauchgase im Gleichstrom mit dem zu behandelnden Gut durch die Drehtrommel (1) führbar sind,
einem Ventilator (7), der den Schacht (6) unter Unterdruck setzt, und
einem Venturieinbau (8), der in der Drehtrommel (1) vor ihrem Auslaßende koaxial angeordnet ist,
dadurch gekennzeichnet, daß im Einführungsbereich des zu behandelnden Gutes im Trommelmantel ein Bypass (9) für Förderluft angeordnet ist. - Anlage nach Anspruch 1, dadurch gekennzeichnet, daß der Ventilator (7) drehzahlgeregelt ist.
- Anlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Leitflächen des Venturieinbaus (8) entlang des Umfangs nur abschnittsweise ausgebildet sind.
- Anlage nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Einlaßende der Drehtrommel (1) abdichtend an die Verbrennungseinrichtung (2) angeschlossen ist.
- Anlage nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Bypass (9) mindestens eine im Abstand hinter dem Einlaßende ausgebildete Öffnung (10) im Trommelmantel umfaßt, wobei mehrere Öffnungen (10) über den Umfang verteilt im Trommelmantel angeordnet und von einem gasdichten Kasten (16) überdeckt sind, der über dem Umfang auf dem Trommelmantel angeordnet und über einen Ringspalt (14) zwischen Trommelmantel und einem Doppelmantel mit einem in Förderrichtung davor angeordneten zweiten Umfangskasten (17) verbunden ist, der mindestens eine Öffnung (12) zur Umgebung aufweist, die durch eine nach außen vorgespannte Klappe (13) innen abdichtend verschlossen wird.
- Anlage nach Anspruch 5, dadurch gekennzeichnet, daß die Umfangskästen (16, 17) und der Doppelmantel (24) zur Umgebung eine Wärmeisolierung (15) aufweisen.
- Anlage nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß sich an die Transportschaufeln (3) Schaufeleinheiten anschließen, die in Reihen hintereinander am Trommelumfang angeordnet sind und abwechselnd gerade Platten (4) und in Längsrichtung taschenbildend abgebogene Platten (5) aufweisen.
- Anlage nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Trommel zwei in Längsrichtung beabstandete Umfangsringe (18) aufweist, an denen der Drehantrieb (19) angreift, wobei mindestens einer der Umfangsringe (18) gegen ein ortsfest drehbar gelagertes Anschlagrad (20) abrollt.
- Anlage nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß in dem Schacht (6) ein nach oben gerichteter Gasstrom ausgebildet ist und unterhalb des Schachtes (6) eine Austragsvorrichtung (21) für das körnige Gut und oberhalb des Schachtes (6) eine Überleiteinrichtung (22) in eine Entstaubungsanlage angeordnet ist.
- Anlage nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß hinter der Austragsvorrichtung (21) mindestens ein Silo für körniges und stückiges Gut und hinter der Entstaubungsanlage mindestens ein Silo für den Staub angeordnet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10240249A DE10240249B3 (de) | 2002-08-31 | 2002-08-31 | Anlage zum Trocknen und Aufbereiten von rieselfähigem mineralischem Gut |
DE10240249 | 2002-08-31 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1394489A2 true EP1394489A2 (de) | 2004-03-03 |
EP1394489A3 EP1394489A3 (de) | 2004-05-26 |
EP1394489B1 EP1394489B1 (de) | 2005-04-13 |
Family
ID=30775582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03019112A Expired - Fee Related EP1394489B1 (de) | 2002-08-31 | 2003-08-23 | Anlage zum Trocknen und Aufbereiten von rieselfähigem mineralischem Gut |
Country Status (3)
Country | Link |
---|---|
US (1) | US6823607B2 (de) |
EP (1) | EP1394489B1 (de) |
DE (2) | DE10240249B3 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103062997A (zh) * | 2012-12-11 | 2013-04-24 | 柳州宝源生物燃料有限公司 | 生物质木屑颗粒烘干机 |
CN104789246A (zh) * | 2015-04-13 | 2015-07-22 | 陕西煤业化工集团神木天元化工有限公司 | 一种带除尘的低阶粉煤回转干燥工艺 |
CN104789244A (zh) * | 2015-04-13 | 2015-07-22 | 陕西煤业化工集团神木天元化工有限公司 | 一种带煤气循环的回转炉粉煤热解生产无烟煤方法 |
CN104830361A (zh) * | 2015-04-29 | 2015-08-12 | 徐州曹氏化工机械制造有限公司 | 一种具备除尘功能的回转干燥炉 |
EP3967659A4 (de) * | 2019-05-07 | 2023-08-16 | Inner Mongolia Puruifen Environmental Protection Technology Co., Ltd. | Hebemitnehmeranordnung für einen drehofen, und drehofen |
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---|---|---|---|---|
AT9203U1 (de) * | 2006-04-06 | 2007-06-15 | Econ Maschb Und Steuerungstech | Trocknungseinrichtung |
CN108489229A (zh) * | 2018-06-12 | 2018-09-04 | 安徽广志药业有限公司 | 一种中药饮片筛料烘干装置 |
CN108800834A (zh) * | 2018-07-02 | 2018-11-13 | 合肥亚卡普机械科技有限公司 | 一种高效粮食烘干设备 |
CN112268425B (zh) * | 2020-09-28 | 2022-02-08 | 马鞍山健鼎化工有限公司 | 一种聚合氯化铝生产干燥用脱水机构 |
CN112539620A (zh) * | 2020-12-09 | 2021-03-23 | 江门市新会区金康宝陈皮食品有限公司 | 一种陈皮烘干机 |
CN115738990B (zh) * | 2022-10-31 | 2023-08-01 | 广东众大智能科技有限公司 | 反应釜及连续式高温反应设备 |
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DE113298C (de) * | ||||
US1698313A (en) * | 1927-03-04 | 1929-01-08 | Firm G Polysius | Device for utilizing the heat radiated from kilns |
FR2441682A1 (fr) * | 1978-11-17 | 1980-06-13 | Creusot Loire | Dispositif pour la preparation de produits enrobes bitumineux pour revetements routiers |
US4541346A (en) * | 1982-11-16 | 1985-09-17 | N. D. Engineering Limited | Rotary high temperature reactor |
DE4243264A1 (de) * | 1992-12-19 | 1994-06-23 | Deutag Ag | Drehofen zum Trocknen und/oder Mischen von rieselfähigem Material |
EP0927707A1 (de) * | 1997-07-17 | 1999-07-07 | Taiheiyo Cement Corporation | Verfahren und vorrichtung zur kühlung von bypass abgasen vom ofen |
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GB872269A (en) * | 1958-01-03 | 1961-07-05 | Gypses Et Platres De France So | Improvements relating to the preparation of gypsum plaster |
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BE858730A (fr) * | 1977-09-15 | 1978-01-02 | Obourg Sa Ciments | Procede et dispositif pour augmenter les echanges calorifiques entre matiere solide et gaz, dans un four rotatif a ciment |
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-
2002
- 2002-08-31 DE DE10240249A patent/DE10240249B3/de not_active Expired - Fee Related
-
2003
- 2003-08-23 EP EP03019112A patent/EP1394489B1/de not_active Expired - Fee Related
- 2003-08-23 DE DE50300437T patent/DE50300437D1/de not_active Expired - Lifetime
- 2003-08-28 US US10/650,235 patent/US6823607B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE113298C (de) * | ||||
US1698313A (en) * | 1927-03-04 | 1929-01-08 | Firm G Polysius | Device for utilizing the heat radiated from kilns |
FR2441682A1 (fr) * | 1978-11-17 | 1980-06-13 | Creusot Loire | Dispositif pour la preparation de produits enrobes bitumineux pour revetements routiers |
US4541346A (en) * | 1982-11-16 | 1985-09-17 | N. D. Engineering Limited | Rotary high temperature reactor |
DE4243264A1 (de) * | 1992-12-19 | 1994-06-23 | Deutag Ag | Drehofen zum Trocknen und/oder Mischen von rieselfähigem Material |
EP0927707A1 (de) * | 1997-07-17 | 1999-07-07 | Taiheiyo Cement Corporation | Verfahren und vorrichtung zur kühlung von bypass abgasen vom ofen |
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CN103062997A (zh) * | 2012-12-11 | 2013-04-24 | 柳州宝源生物燃料有限公司 | 生物质木屑颗粒烘干机 |
CN104789246A (zh) * | 2015-04-13 | 2015-07-22 | 陕西煤业化工集团神木天元化工有限公司 | 一种带除尘的低阶粉煤回转干燥工艺 |
CN104789244A (zh) * | 2015-04-13 | 2015-07-22 | 陕西煤业化工集团神木天元化工有限公司 | 一种带煤气循环的回转炉粉煤热解生产无烟煤方法 |
CN104830361A (zh) * | 2015-04-29 | 2015-08-12 | 徐州曹氏化工机械制造有限公司 | 一种具备除尘功能的回转干燥炉 |
EP3967659A4 (de) * | 2019-05-07 | 2023-08-16 | Inner Mongolia Puruifen Environmental Protection Technology Co., Ltd. | Hebemitnehmeranordnung für einen drehofen, und drehofen |
Also Published As
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EP1394489B1 (de) | 2005-04-13 |
DE10240249B3 (de) | 2004-02-26 |
EP1394489A3 (de) | 2004-05-26 |
US6823607B2 (en) | 2004-11-30 |
DE50300437D1 (de) | 2005-05-19 |
US20040118006A1 (en) | 2004-06-24 |
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