EP0673495A1 - Einlauf zum zuführen von rohmaterial in eine drehtrommel - Google Patents
Einlauf zum zuführen von rohmaterial in eine drehtrommelInfo
- Publication number
- EP0673495A1 EP0673495A1 EP94930159A EP94930159A EP0673495A1 EP 0673495 A1 EP0673495 A1 EP 0673495A1 EP 94930159 A EP94930159 A EP 94930159A EP 94930159 A EP94930159 A EP 94930159A EP 0673495 A1 EP0673495 A1 EP 0673495A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- collar
- inlet
- rotary drum
- chute
- slide
- 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
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
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/22—Rotary drums; Supports therefor
- F27B7/24—Seals between rotary and stationary parts
-
- 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
Definitions
- the invention relates to an inlet for feeding raw material into a rotating drum, in particular into a rotary kiln for the production of cement clinker, with a chute leading to the inlet opening of the rotating drum, which consists of a metal jacket and an inner lining made of refractory material, the foremost part the slide is formed by a collar which projects into the rotating drum and is arranged releasably on the slide, which is hollow and closed towards the rotating drum.
- Rotary kiln inlets with material inlet chutes are known for example from US-A-35 47 417.
- the slides used in such systems are subject to very high abrasive and thermal stress, which is associated with progressive removal of the refractory lining, particularly in the area of the discharge end of the slide.
- the invention is based on the task of further developing the known inlet for feeding raw material into a rotary drum in such a way that larger repair intervals can be achieved during the operating period and there is an increased ease of maintenance.
- the collar on the surfaces facing the rotary drum is covered with a heat-resistant abrasion protection made of ceramic material, and that the collar is provided on its rear side with a projection by means of which the collar is can hang on the slide or part of it.
- Such an inlet has a significantly reduced wear in the area of the collar, so that it is less frequently necessary to carry out repair or maintenance work in the area of the rotating drum inlet compared to known designs. It is also particularly easy to attach or detach the collar. Since this is simply attached to the slide, it is not necessary to replace the collar to remove the fire-resistant lining of the slide, so that there is an overall repair and maintenance-friendly construction.
- FIG. 1 shows a system diagram of a system for producing cement clinker.
- FIG. 2 shows a detail of FIG. 1 in the area of the inlet to a rotary tube furnace
- Fig. 3 details of a collar arranged in the region of the inlet.
- a plant for the production of cement clinker is shown. This consists of a rotary kiln in which the cement clinker is burned, a preheating system 2, which in the exemplary embodiment is designed as a four-stage cyclone heat exchanger system, and a cooling device 3 connected downstream of the rotary kiln 1.
- the raw material enters the preheating system 2 at the point provided with the reference number 4, passes through the individual stages in succession, in order then to reach the rotary kiln 1 via an oven inlet housing 5.
- the preheating system 2 is provided with a furnace so that the raw material introduced into the rotary kiln 1 is not only preheated, but is already partially calcined.
- the raw material which has been completely calcined and sintered in the rotary kiln 1 leaves it through its outlet 6 and, after passing through the cooling device 3 in the direction of the arrow 7, is subjected to further processing, for example grinding the clinker.
- the raw material leaving the preheating system 2 and entering the furnace inlet housing 5 has considerable temperatures, in particular when partial calcining takes place in the area of the preheating system 2, so that a lining 9 made of refractory material shown in FIG. which is part of a chute 10 of the furnace inlet housing 5, is exposed to high thermal and mechanical and in particular abrasive stress.
- the slide 10 is formed by a metal jacket 1 1, which has the profile of a conical surface.
- the refractory lining 9 is anchored on the inside of the metal jacket 11.
- cooling air can be introduced into the interior of the collar 13 via lines (not shown). This cooling air cools the collar 13
- Fig. 3 This is constructed as a double-walled construction, the cavity thus formed, which is provided with cooling air inlets, being closed towards the rotary kiln 1, and in the opposite direction, i.e. at the back of the collar 1 3, for the introduction of the cooling air is open.
- On the back of the collar 1 3 it is provided with a projection 14 extending perpendicular to the longitudinal axis of the collar 1 3, by means of which the collar 1 3 can be attached to the metal jacket 1 1 of the slide 10.
- the projection 14 is designed as a rear bend of the upper wall 1 5 of the collar 1 3.
- the lower wall 1 6 of the collar 1 3, opposite the projection 14, is provided with an obliquely upward bend 1 7.
- Fig. 3 shows that the collar 1 3 is provided on its front facing the rotary kiln 1 with a cladding 19.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Furnace Details (AREA)
- Baking, Grill, Roasting (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4334521 | 1993-10-09 | ||
DE4334521A DE4334521A1 (de) | 1993-10-09 | 1993-10-09 | Einlauf zum Zuführen von Rohmaterial in eine Drehtrommel |
PCT/EP1994/003332 WO1995010745A1 (de) | 1993-10-09 | 1994-10-10 | Einlauf zum zuführen von rohmaterial in eine drehtrommel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0673495A1 true EP0673495A1 (de) | 1995-09-27 |
EP0673495B1 EP0673495B1 (de) | 1998-09-23 |
Family
ID=6499820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94930159A Expired - Lifetime EP0673495B1 (de) | 1993-10-09 | 1994-10-10 | Einlauf zum zuführen von rohmaterial in eine drehtrommel |
Country Status (8)
Country | Link |
---|---|
US (1) | US5730590A (de) |
EP (1) | EP0673495B1 (de) |
JP (1) | JP3055070B2 (de) |
CZ (1) | CZ282981B6 (de) |
DE (1) | DE4334521A1 (de) |
ES (1) | ES2123160T3 (de) |
PL (1) | PL178742B1 (de) |
WO (1) | WO1995010745A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2889735B1 (fr) * | 2005-08-09 | 2007-09-28 | Pa Technologies Sa | Barreau composite utilisable dans un four de cimenterie |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE66492C (de) * | E. winkler in Alzenau, Bez. Liegnitz | Harmonika mit Flötenwerk | ||
US2266396A (en) * | 1941-05-31 | 1941-12-16 | Allis Chalmers Mfg Co | Rotary kiln |
FR1195119A (fr) * | 1957-04-27 | 1959-11-16 | Steinmueller Gmbh L & C | Procédé pour rendre étanche un espace formé par deux ou un plus grand nombre de récipients mobiles les uns par rapport aux autres et dont le mouvement relatif n'estpas effectué exclusivement dans un plan horizontal et dispositif pour sa mise en oeuvre |
US3436061A (en) * | 1967-05-25 | 1969-04-01 | Little Inc A | Rotating sectioned furnace |
US3547417A (en) * | 1968-05-23 | 1970-12-15 | Smidth & Co As F L | Rotary kiln assembly |
SU589523A1 (ru) * | 1975-11-20 | 1978-01-25 | Всесоюзный Научно-Исследовательский Институт Цементного Машиностроения | Вращающа с печь |
DE2940727A1 (de) * | 1979-10-08 | 1981-04-16 | Plibrico Co GmbH, 4000 Düsseldorf | Einlaufschuessel |
DE3245702A1 (de) * | 1982-12-10 | 1984-07-05 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Einlauf fuer drehtrommeln |
FR2634545B2 (fr) * | 1987-07-17 | 1991-03-29 | Fives Cail Babcock | Dispositif de protection de l'embouchure d'un four rotatif |
JPH039208A (ja) * | 1989-06-06 | 1991-01-17 | Mitsubishi Electric Corp | 車両の後輪舵角検出装置 |
DE4300827A1 (de) * | 1993-01-14 | 1994-07-21 | Krupp Polysius Ag | Drehrohrofeneinlauf |
-
1993
- 1993-10-09 DE DE4334521A patent/DE4334521A1/de not_active Withdrawn
-
1994
- 1994-10-10 CZ CZ951501A patent/CZ282981B6/cs not_active IP Right Cessation
- 1994-10-10 EP EP94930159A patent/EP0673495B1/de not_active Expired - Lifetime
- 1994-10-10 US US08/448,551 patent/US5730590A/en not_active Expired - Fee Related
- 1994-10-10 PL PL94309340A patent/PL178742B1/pl unknown
- 1994-10-10 ES ES94930159T patent/ES2123160T3/es not_active Expired - Lifetime
- 1994-10-10 WO PCT/EP1994/003332 patent/WO1995010745A1/de active IP Right Grant
- 1994-10-10 JP JP7511267A patent/JP3055070B2/ja not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9510745A1 * |
Also Published As
Publication number | Publication date |
---|---|
US5730590A (en) | 1998-03-24 |
DE4334521A1 (de) | 1995-04-13 |
JPH08501872A (ja) | 1996-02-27 |
PL178742B1 (pl) | 2000-06-30 |
JP3055070B2 (ja) | 2000-06-19 |
PL309340A1 (en) | 1995-10-02 |
ES2123160T3 (es) | 1999-01-01 |
EP0673495B1 (de) | 1998-09-23 |
CZ150195A3 (en) | 1996-01-17 |
CZ282981B6 (cs) | 1997-12-17 |
WO1995010745A1 (de) | 1995-04-20 |
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