DE19905592B4 - Rotary kiln for cement production - Google Patents
Rotary kiln for cement production Download PDFInfo
- Publication number
- DE19905592B4 DE19905592B4 DE19905592A DE19905592A DE19905592B4 DE 19905592 B4 DE19905592 B4 DE 19905592B4 DE 19905592 A DE19905592 A DE 19905592A DE 19905592 A DE19905592 A DE 19905592A DE 19905592 B4 DE19905592 B4 DE 19905592B4
- Authority
- DE
- Germany
- Prior art keywords
- rotary kiln
- cylinder
- air
- heat
- radiant heat
- 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 - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 6
- 239000004568 cement Substances 0.000 title claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000011084 recovery Methods 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 238000005253 cladding Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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 specially adapted for rotary-drum furnaces
-
- 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
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/10—Arrangements for using waste heat
-
- 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
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/10—Arrangements for using waste heat
- F27D17/15—Arrangements for using waste heat using boilers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
Drehrohrofen zur Zementherstellung mit Anordnungen zur Wärmerückgewinnung aus der Strahlungswärme, wobei konzentrisch zu dem einem Drehrohrofenzylinder (1.3) zugeführten Material ein beabstandeter weiterer Zylinder (1.5) als Umhüllung zur Ausbildung eines Ringraumes (1.4) angeordnet ist und der Ringraum (1.4), durch einen Wendelblechstreifen (1.13) zwischen dem Drehrohrofenzylinder (1.3) und dem weiteren Zylinder (1.5) gewindeartige Luftführungen über die Länge des Drehrohrofens (1.1) aufweist, wobei die mittels eines Gebläses (1.17, 1.18) durchgeführte Luft durch Wärmeaustausch von der Strahlungswärme des Drehrohrofenzylinders (1.3) aufheizbar ist.Rotary kiln for cement production with arrangements for heat recovery from radiant heat, wherein concentric with the rotary kiln cylinder (1.3) supplied material a spaced further cylinder (1.5) as a wrapper for Formation of an annular space (1.4) is arranged and the annulus (1.4), through a spiral sheet metal strip (1.13) between the rotary kiln cylinder (1.3) and the other cylinder (1.5) thread-like air ducts over the Length of the Rotary kiln (1.1), wherein by means of a blower (1.17, 1.18) Air through heat exchange from the radiant heat of the rotary kiln cylinder (1.3) can be heated.
Description
Die Erfindung bezieht sich auf einen Drehrohrofen zur Zementherstellung mit Anordnungen zur Wärmerückgewinnung aus der Strahlungswärme.The The invention relates to a rotary kiln for cement production with arrangements for heat recovery from the radiant heat.
Eine Nutzung der Strahlungswärme eines Drehrohrofens mittels einer Isolierung der äußeren Wandung des Drehrohrofens ist wegen der dann im Innenraum ansteigenden und erfahrungsgemäß nicht kontrollierbaren hohen Temperatur nicht möglich, weil die Stabilität der Außenwand, die das tragende Element des Drehrohrofens darstellt, nicht mehr gewährleistet wäre. Es läßt sich zwar die Strahlungswärme durch Hinterfüttern des feuerfesten Materials – der Ausmauerung – des Drehrohrofens reduzieren. Die Strahlungswärme kann aber nur teilweise eingedämmt werden, da das feuerfeste Futter im Ofen einer zu starken thermischen Belastung ausgesetzt wäre.A Use of radiant heat a rotary kiln by means of insulation of the outer wall of the rotary kiln is because of then in the interior rising and not according to experience controllable high temperature is not possible because the stability of the outer wall, which is the main element of the rotary kiln, no more guaranteed would. It let yourself although the radiant heat through back feeding of refractory material - the Walling - the Reduce the rotary kiln. The radiant heat can only be partially contained, because the refractory lining in the oven too strong thermal stress would be exposed.
Es
ist bereits bekannt, nach der
Ferner
ist nach der
Ferner ist nach der DE-OS 18 13 283 ein Drehrohrofen mit einem Ringraum zwischen einem Innen- und Außenzylinder bekannt, wobei die Ringräume eine Funktion als Brennraum zwecks Aufheizung des Innenzylinders besitzt. Hierbei wird keine durch den Produktionsprozeß anfallende Abwärme nutzbringend verwendet.Further is according to DE-OS 18 13 283 a rotary kiln with an annulus between an inner and outer cylinder known, the annular spaces a function as a combustion chamber for heating the inner cylinder has. In this case, no costs incurred by the production process waste heat used beneficially.
Die Aufgabe der Erfindung ist es, die Strahlungswärme mit einem hohen Wirkungsgrad zu erfassen, wobei diese nutzbringend einem Produktzyklus zugeführt werden kann.The The object of the invention is the radiant heat with a high efficiency which are usefully fed into a product cycle can.
Die Lösung dieser Aufgabe erfolgt durch die Merkmalskombination des Patentanspruches 1.The solution This object is achieved by the combination of features of claim 1.
Hierdurch wird die Wärmerückgewinnung bei derartiger Anordnung erheblich erhöht, so daß die gewonnene Energie dem Prozeßverlauf weiter zuführbar und/oder auch einer anderweitigen Wärmenutzung zuführbar ist.hereby becomes the heat recovery considerably increased in such an arrangement, so that the energy obtained the course of the process weiter feedable and / or another heat use can be supplied.
Um die vorliegenden Verhältnisse besser zu berücksichtigen, wird vorgeschlagen, daß die Steigung des Wendelblechstreifens über die Länge des Drehrohrofens unterschiedlich ist.Around the present conditions better to consider It is suggested that the Slope of the spiral sheet strip over the length of the rotary kiln different is.
Eine günstige Ausbildung wird dadurch gebildet, daß im Bereich der Materialeinlaufseite des Drehrohrofens an dem äußeren Zylinder eine feststehende Abschlußhaube mit einer Luftansaugöffnung und an der Materialaustrittseite des Drehofens eine feststehende Abschlußhaube mit einer Luftaustrittsöffnung angeordnet sind.A favorable Training is formed by the fact that in the region of the material inlet side of the rotary kiln to the outer cylinder a fixed end cap with an air intake and on the material outlet side of the rotary kiln a fixed end cap with an air outlet opening are arranged.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt. Es zeigen:In the drawing is an embodiment of Invention shown schematically. Show it:
Der
dargestellte Drehrohrofen
In
diesem Fall handelt es sich um einen Drehrohrofen zur Zementherstellung,
der eine entsprechende Sinterzone aufweist. Im Bereich der Sinterzone
kann der Wendelblechstreifen
Zwischen
Drehrohrofenzylinder
An
einer Materialeinlaufseite
Über den
Luftfilter
Das
Futter
Der
Drehrohrofen
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19905592A DE19905592B4 (en) | 1999-02-11 | 1999-02-11 | Rotary kiln for cement production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19905592A DE19905592B4 (en) | 1999-02-11 | 1999-02-11 | Rotary kiln for cement production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE19905592A1 DE19905592A1 (en) | 2000-08-17 |
| DE19905592B4 true DE19905592B4 (en) | 2006-01-12 |
Family
ID=7897098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19905592A Expired - Fee Related DE19905592B4 (en) | 1999-02-11 | 1999-02-11 | Rotary kiln for cement production |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19905592B4 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671105B (en) * | 2009-09-07 | 2011-05-18 | 浙江大学 | System for drying sludge by utilizing radiation heat of rotary cement kiln |
| CN101654324B (en) * | 2009-09-12 | 2011-12-07 | 林斌炎 | Method and device for drying sludge by utilizing heat radiation of kiln |
| CN103471411B (en) * | 2013-10-12 | 2015-10-07 | 攀枝花学院 | Waste heat recovery device |
| CN104896946B (en) * | 2015-06-09 | 2017-03-08 | 尹明和 | Cement kiln hot water heat exchanger |
| CN105043092A (en) * | 2015-09-05 | 2015-11-11 | 吉首大学 | Manganese processing rotary kiln with gas furnace supplying heat |
| DE102016209817B4 (en) * | 2016-06-03 | 2019-07-04 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Solar heated reactor, industrial furnace and cement production plant |
| CN111998682A (en) * | 2020-07-15 | 2020-11-27 | 江苏铭芮热能设备有限公司 | Waste heat recycling device for rotary kiln |
| CN116147365A (en) * | 2023-03-09 | 2023-05-23 | 江苏鹏飞集团股份有限公司 | Radiant heat collection device for laterite nickel ore roasting rotary kiln |
| CN118463638B (en) * | 2024-07-12 | 2024-12-06 | 江苏齐疆重工科技有限公司 | Waste heat utilization equipment acting on lengthened rotary kiln |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD18724A (en) * | ||||
| US1800247A (en) * | 1929-03-05 | 1931-04-14 | John C Buckbee | Cement kiln |
| DE1813283A1 (en) * | 1968-12-07 | 1970-08-13 | Tembe Madhusudan Raghunath | Rotating furnace for continuously coking - coal |
| DE2813133A1 (en) * | 1978-03-25 | 1979-09-27 | Messerschmitt Boelkow Blohm | EXHAUST RECOVERY SYSTEM |
| DE3128191C2 (en) * | 1981-07-16 | 1986-09-04 | INTERATOM GmbH, 5060 Bergisch Gladbach | Use of waste heat for rotary kilns |
| DE4300011C2 (en) * | 1993-01-02 | 1999-02-25 | Helmut Dipl Ing Dorst | Counterflow direct heat exchanger as preheating and / or cooling system |
-
1999
- 1999-02-11 DE DE19905592A patent/DE19905592B4/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD18724A (en) * | ||||
| US1800247A (en) * | 1929-03-05 | 1931-04-14 | John C Buckbee | Cement kiln |
| DE1813283A1 (en) * | 1968-12-07 | 1970-08-13 | Tembe Madhusudan Raghunath | Rotating furnace for continuously coking - coal |
| DE2813133A1 (en) * | 1978-03-25 | 1979-09-27 | Messerschmitt Boelkow Blohm | EXHAUST RECOVERY SYSTEM |
| DE3128191C2 (en) * | 1981-07-16 | 1986-09-04 | INTERATOM GmbH, 5060 Bergisch Gladbach | Use of waste heat for rotary kilns |
| DE4300011C2 (en) * | 1993-01-02 | 1999-02-25 | Helmut Dipl Ing Dorst | Counterflow direct heat exchanger as preheating and / or cooling system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19905592A1 (en) | 2000-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE19905592B4 (en) | Rotary kiln for cement production | |
| EP2910855B1 (en) | Recuperative burner with supplementary heat exchanger | |
| DE2833774C2 (en) | Distillation plant for the production of mineral fuel products, such as cement clinker from raw meal | |
| DE3841708C1 (en) | ||
| DE2535967A1 (en) | METHOD OF DIVIDING A FLOW OF POWDERED GOODS INTO PARTIAL FLOWS | |
| DE2360580B2 (en) | ROTARY FURNACE SYSTEM FOR FINE-GRAY GOODS, IN PARTICULAR PORTLAND CEMENT CLINKERS | |
| EP3426995B1 (en) | System having a furnace and method for operating such a system | |
| DE2947358A1 (en) | ROLLER OVEN WITH DRYING TUNNEL, IN PARTICULAR FOR CERAMIC OR FIREPROOF MATERIALS | |
| EP0056931B1 (en) | Rotary drum furnace | |
| DE3314940C2 (en) | Coke burner | |
| DE2705566A1 (en) | PLANT AND PROCESS FOR HEAT TREATMENT OF FINE-GRAINED GOODS, IN PARTICULAR OF RAW CEMENT FLOUR | |
| DE2201148A1 (en) | Method and device for carrying out the heat exchanger between a heat transfer medium and a rotary tube | |
| DE10305147B4 (en) | Rotary kiln with longitudinal sealing of the heating tunnel and method for producing such a longitudinal seal | |
| EP2142852A1 (en) | Burner arrangement | |
| DE2633075A1 (en) | PLANET COOLER | |
| WO2017149110A1 (en) | Furnace and method for operating a furnace | |
| DE2748576C3 (en) | Regenerative heater | |
| WO1984000604A1 (en) | Uninterruptedly heated rotary drum furnace | |
| DE2537951C3 (en) | Device for preheating and calcining granular and lumpy materials | |
| DE628007C (en) | Pretreatment device for rotary kilns for burning limestone mixtures, ores, etc. | |
| AT111834B (en) | Circulating muffle furnace. | |
| DE671806C (en) | Rotating muffle furnace | |
| DE2053805A1 (en) | Recuperative burner | |
| DE835611C (en) | Device for heat exchangers | |
| DE565325C (en) | Annealing furnace plant and procedure for operating the plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8110 | Request for examination paragraph 44 | ||
| 8364 | No opposition during term of opposition | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20110901 |