EP0170304B1 - Refroidisseur du clinker avec dispositif de dépoussiérage dans un procédé de fabrication de ciment - Google Patents

Refroidisseur du clinker avec dispositif de dépoussiérage dans un procédé de fabrication de ciment Download PDF

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Publication number
EP0170304B1
EP0170304B1 EP19850200949 EP85200949A EP0170304B1 EP 0170304 B1 EP0170304 B1 EP 0170304B1 EP 19850200949 EP19850200949 EP 19850200949 EP 85200949 A EP85200949 A EP 85200949A EP 0170304 B1 EP0170304 B1 EP 0170304B1
Authority
EP
European Patent Office
Prior art keywords
dedusting
clinker cooler
dust
air
clinker
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 - Lifetime
Application number
EP19850200949
Other languages
German (de)
English (en)
Other versions
EP0170304A2 (fr
EP0170304A3 (en
Inventor
Werner Maus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of EP0170304A2 publication Critical patent/EP0170304A2/fr
Publication of EP0170304A3 publication Critical patent/EP0170304A3/de
Application granted granted Critical
Publication of EP0170304B1 publication Critical patent/EP0170304B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • 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
    • F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
    • 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
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F27D15/0206—Cooling with means to convey the charge
    • F27D15/0266—Cooling with means to convey the charge on an endless belt

Definitions

  • the invention relates to a clinker cooler with a dedusting device in a method for producing cement, the hot clinker falling at temperatures of 1150 to 1300 ° C. on an air-permeable conveyor belt and being cooled with cooling air passed through the conveyor belt, the cooling air then passed through a dedusting device and up to a residual dust content of about 30 to 100 mg / Nm3 is dedusted and a solid transport device receiving the cooled clinker is arranged under the clinker cooler.
  • the clinker cooler is a known part of a plant for cement production, and the dedusting device for the cooling air coming from the clinker cooler is also known.
  • Methods and devices are known from documents DE-B-1 209 040, DE-A-2 327 903 and US-A-3 704 525 which relate to the cooling of cement with cooling air and the dedusting of the dust-laden exhaust air which is produced in the process.
  • the known methods and devices use the exhaust air either as secondary air for the combustion process and / or perform a separate cleaning of the exhaust air. Since the dedusting device in systems with a separate cleaning of the exhaust air has a large volume and weight due to the necessary performance, it is common to place the dedusting device next to the clinker cooler. This arrangement of clinker cooler and Dedusting device leads to considerable space requirements, to a relatively long cooling air line from the clinker cooler to the dedusting device and for the latter to a separate dust transport device.
  • the invention has for its object to provide a combination of clinker cooler and dedusting device, the space requirement is small and which reduces the plant and operating costs. According to the invention, this is done by a clinker cooler with an air-permeable conveyor belt, a cooling air supply device, a solids transport device and at least one dedusting element, consisting of a cyclone with a downstream granulate filter, the dedusting element being arranged above the clinker cooler and connected to it via a short line and with a discharge line for the dust deposited in the dedusting element is provided, the discharge opening directly above the solids transport device.
  • the arrangement according to the invention makes it possible to supply the dust-containing cooling air from the clinker cooler with a short line to the dedusting device, and at the same time the solids transport device which necessarily belongs to the clinker cooler can also transport the dust accumulating in the dedusting device.
  • Another advantage is the small space requirement of the system combination. The main advantage, however, is that the corrosion problems normally caused by the dust-containing exhaust gas are almost completely avoided.
  • Granulate filters in which the dust is removed from the air passed through the layer through a layer of solid granulate, are known per se and are described, for example, in DE-C-27 19 544 and Document DE-A-29 51 877 described. These filters have the advantage that, on the one hand, they ensure good dust separation and, on the other hand, the dust-laden granulate can be cleaned and reused continuously and easily.
  • the clinker cooler with dedusting device is advantageously used for cooling hot clinker at temperatures of 1150 to 1300 ° C. by cooling air and for dedusting any dust-laden exhaust air to a residual dust content of about 30 to 100 mg / Nm3.
  • FIG. 1 An embodiment of the invention is shown in the drawing. It shows a schematic representation of a longitudinal section through the clinker cooler with associated dedusting device.
  • the hot clinker comes with temperatures from 1150 to 1300 ° C e.g. from a rotary tube, not shown, and passes through the inlet 1 of the clinker cooler 2 onto an inclined conveyor belt 3.
  • the conveyor belt 3 consists in a known manner of air-permeable metal members.
  • Cooling air is first fed from the blower 4 to an invisible manifold, from which the cooling air enters the clinker cooler below the conveyor belt 3 through numerous openings 5.
  • the cooling air flows upwards through the conveyor belt 3 and the clinker layer thereon, which is not shown.
  • Cooling air containing dust leaves the clinker cooler through the exhaust pipe 6.
  • Cooled clinker with a temperature of approximately 70-120 ° C. falls at the lower end of the conveyor belt 3 in the direction of arrow 7 through a drain 8 onto an endless transport device 9.
  • This transport device 9 which is only partially shown in the drawing, for example in a known manner be designed as a drag chain. Solids that fall down in the clinker cooler 2 also reach the transport device 9 through a plurality of derivatives 12.
  • the solid-containing cooling air in the exhaust pipe 6 is fed to a multi-part dedusting device, which is shown only partially and in simplified form in the drawing.
  • the dedusting device can consist, for example, of several dedusting elements 13 connected in parallel, of which the drawing shows one element.
  • This element consists of a cyclone 14 with a downstream granulate filter 15.
  • the dust-containing cooling air is first roughly dedusted in the cyclone 14, the air flowing helically around a tube 16 and reaching the granulate filter 15 through the lower end of the tube.
  • the flow path of the air out of the tube 16 into the granulate filter 15 is indicated by the arrows 17a and 17b.
  • the granulate filter 15 has an essentially cylindrical granulate layer 18, which is located between air-permeable walls.
  • the dust-containing air flows through the granulate layer 18 from the outside in, as indicated by the arrows 19a and 19b.
  • the fine dust content is retained in the granulate layer and the exhaust air cleaned to a residual dust content of 30 to 100 mg / Nm3 is led through line 22 to the common exhaust air chimney.
  • the filter is separated from the line 22 in a manner not shown, and the granulate is conveyed pneumatically through a central line 20 from bottom to top to a collecting container 21 and through which purge air flows against the normal gas direction, the lighter dust from the heavier granulate is spotted.
  • the conveying gas used for the line 20, usually air, is fed into the exhaust pipe 6.
  • the dust falls through the pipe 16 into the solid line 26.
  • Dust-free granulate collects in the container 21 and flows back to the granule layer 18 via several downpipes 23. Dust-free air leaves the granule filter in the clean gas line 22, which usually leads to a collecting line with a fan, which is not shown in the drawing for simplification.
  • the solids deposited in the cyclone 14 and during the cleaning process of the granulate layer 18 fall into a line 26 and pass through this line to the transport device 9.
  • the line 26 runs outside the clinker cooler 2, which is indicated by the line line shown in broken lines. If several dedusting elements 13 are connected in parallel, as is customary, all solid lines 26 of these elements discharge their solids to the transport device 9, so that an additional transport device is unnecessary.

Claims (2)

  1. Dispositif de refroidissement de clinker ayant un dispositif de dépoussiérage dans un procédé de fabrication du ciment, comportant le dispositif de refroidissement du clinker ayant une bande convoyeuse perméable à l'air, un dispositif d'amenée d'air de refroidissement, un dispositif de convoyage de matière solide et au moins un élément de dépoussiérage constitué d'un cyclone et d'un filtre de granulés en aval, l'élément de dépoussiérage étant disposé au-dessus du dispositif de refroidissement de clinker, et communiquant avec celui-ci par un conduit court, tandis qu'il est prévu une évacuation de la poussière séparée dans l'élément de dépoussiérage, l'évacuation débouchant juste audessus du dispositif de convoyage de matière solide.
  2. Utilisation d'un dispositif de refroidissement de clinker ayant un dispositif de dépoussiérage suivant la revendication 1, pour refroidir du clinker chaud à des températures de 1150 à 1300°C par de l'air de refroidissement et pour dépoussiérer l'air effluent et chargé de poussière qui se forme, jusqu'à une teneur résiduelle en poussière de 30 à 100 mg/m³ normal environ.
EP19850200949 1984-06-30 1985-06-15 Refroidisseur du clinker avec dispositif de dépoussiérage dans un procédé de fabrication de ciment Expired - Lifetime EP0170304B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3424170 1984-06-30
DE19843424170 DE3424170A1 (de) 1984-06-30 1984-06-30 Klinkerkuehler mit entstaubungsvorrichtung in einem verfahren zur zementherstellung

Publications (3)

Publication Number Publication Date
EP0170304A2 EP0170304A2 (fr) 1986-02-05
EP0170304A3 EP0170304A3 (en) 1989-10-11
EP0170304B1 true EP0170304B1 (fr) 1993-12-22

Family

ID=6239545

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850200949 Expired - Lifetime EP0170304B1 (fr) 1984-06-30 1985-06-15 Refroidisseur du clinker avec dispositif de dépoussiérage dans un procédé de fabrication de ciment

Country Status (4)

Country Link
EP (1) EP0170304B1 (fr)
JP (1) JPH0625006B2 (fr)
DE (2) DE3424170A1 (fr)
ES (1) ES8703392A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4033713A1 (de) * 1990-10-24 1992-04-30 Westfalia Becorit Ind Tech Einrichtung zur kuehlung der abgebrannten anoden elektrolytischer schmelzbaeder
DK169177B1 (da) * 1991-11-27 1994-09-05 Smidth & Co As F L Fremgangsmåde til fremstilling af cement
AT511613B1 (de) * 2012-01-24 2013-01-15 Inteco Special Melting Technologies Gmbh Verfahren und anlage zur abgasreinigung bei vakuum-stahlbehandlungsprozessen
CN112209645B (zh) * 2020-10-20 2022-06-24 杭州山亚南方水泥有限公司 一种水泥生产用降低熟料燃煤贫化装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1049253A (fr) * 1949-12-30 1953-12-29 Smidth & Co As F L Procédé de refroidissement du clinker de ciment
DE1209040B (de) * 1964-06-19 1966-01-13 Kloeckner Humboldt Deutz Ag Verfahren zur Gewinnung eines im wesentlichen alkalifreien Ofenaustrages beim Brennen von schwerfluechtige Alkalien enthaltenden Mineralien
FR2112750A5 (fr) * 1970-11-06 1972-06-23 Constantin E
DD104354A1 (fr) * 1972-06-26 1974-03-05
JPS515009A (en) * 1974-07-01 1976-01-16 Kawai Musical Instr Mfg Co Pianoakushonniokeru goseijushiseikyatsuchaaheno puraidoruteepuno sochakuhoho
FR2323653A2 (fr) * 1975-09-12 1977-04-08 Fives Cail Babcock Installation pour la fabrication du ciment par voie seche comportant des moyens pour regler la repartition de l'air provenant du refroidisseur entre le four et une chambre de combustion placee en amont du four
CH614128A5 (fr) * 1976-05-06 1979-11-15 Gimag Ag
DD129102A1 (de) * 1977-01-03 1977-12-28 Ruediger Schramm Verfahren und anordnung zum kuehlen von brenngut
FR2395964A1 (fr) * 1977-06-27 1979-01-26 Bourgoin Rene Procede de refroidissement de clinker de cimenterie et de precalcination de la farine crue
CH637845A5 (de) * 1978-12-22 1983-08-31 Gimag Ag Verfahren und vorrichtung zur intermittierenden, regenerierenden reinigung eines filterbettes.
JPS6029658B2 (ja) * 1981-10-12 1985-07-11 バブコツク日立株式会社 焼塊熱回収装置
JPS6122972U (ja) * 1984-07-17 1986-02-10 三菱重工業株式会社 圧力逃し弁

Also Published As

Publication number Publication date
DE3424170C2 (fr) 1992-10-29
ES8703392A1 (es) 1987-02-16
JPS6117455A (ja) 1986-01-25
JPH0625006B2 (ja) 1994-04-06
EP0170304A2 (fr) 1986-02-05
ES544643A0 (es) 1987-02-16
EP0170304A3 (en) 1989-10-11
DE3587692D1 (de) 1994-02-03
DE3424170A1 (de) 1986-02-27

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