AU2010305133A1 - Sinter cooler with adjustable cooling gas seal - Google Patents
Sinter cooler with adjustable cooling gas seal Download PDFInfo
- Publication number
- AU2010305133A1 AU2010305133A1 AU2010305133A AU2010305133A AU2010305133A1 AU 2010305133 A1 AU2010305133 A1 AU 2010305133A1 AU 2010305133 A AU2010305133 A AU 2010305133A AU 2010305133 A AU2010305133 A AU 2010305133A AU 2010305133 A1 AU2010305133 A1 AU 2010305133A1
- Authority
- AU
- Australia
- Prior art keywords
- sinter
- cooling
- sealing
- chamber
- cooler according
- 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
- 239000000112 cooling gas Substances 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 69
- 238000001816 cooling Methods 0.000 claims abstract description 32
- 239000013536 elastomeric material Substances 0.000 claims abstract description 6
- 238000005272 metallurgy Methods 0.000 claims abstract description 4
- 238000005245 sintering Methods 0.000 claims abstract description 3
- 229920000642 polymer Polymers 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 3
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 241000272470 Circus Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/26—Cooling of roasted, sintered, or agglomerated ores
-
- 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
- F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
- F27B21/02—Sintering grates or tables
-
- 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
- F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
- F27B21/04—Sintering pots or sintering pans
-
- 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
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0073—Seals
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Furnace Details (AREA)
- Powder Metallurgy (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Tunnel Furnaces (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
This invention relates to a sinter cooler of a sintering plant for use in metallurgy, comprising a cooling-air chamber (1 ) and a sinter cooling chamber (3) including a perforated plate (2) which can travel over the same, and comprising a cooling gas seal (4) between the upper surface of the cooling-air chamber (1 ) and the lower surface of the sinter cooling chamber (3), in which the cooling gas seal (4) as a stationary sealing support of the cooling-air chamber wall (17) for sealing elements (6) of an elastomeric material carried along with the sinter cooling chamber (3) includes a sealing strip (5) with substantially round, preferably circular cross-section.
Description
WO 2011/042102 PCT/EP2010/005520 SINTER COOLER WITH ADJUSTABLE COOLING GAS SEAL This invention relates to a sinter cooler for use in metallurgy, comprising a cooling-air 5 chamber and a sinter cooling chamber including a perforated plate, which can travel over the same, and comprising a cooling gas seal between the upper surface of the cooling-air chamber and the lower surface of the sinter cooling chamber. In such sinter coolers, external seals of cotton laminate (e.g. Laminex@), which are 10 provided on the upper surface of rigid rubber strips, previously have been used to avoid cooling air losses. The rubber strips are arranged on adjustable angular brackets, which in turn are fixed on vertical stationary sealing plates. These seals wear relatively quickly and frequently must be readjusted by hand. 15 It is the object of the present invention to equip a sinter cooler as mentioned above with a novel cooling gas seal, which with an improved durability safely reduces cooling air losses and hence the amount of required cooling air, without increasing the frictional resistance. This should lead to a saving of operating costs and improve the effective ness of the cooler. 20 In a sinter cooler as mentioned above, this object in particular is solved in that the cooling gas seal as a stationary sealing support of the cooling-air chamber wall for sealing elements of elastomeric material carried along with the sinter cooling chamber includes a sealing strip with round, preferably circular cross-section. 25 "Round" in the sense of the present invention should cover all rounded, i.e. both circu lar and oval sealing strips, but also profiles with a substantially rectangular cross section, which in any case on their side facing the sealing elements of the traveling sinter cooling chamber are distinctly rounded or at least beveled to reduce the contact 30 surface with the sealing elements. In such configuration of the cooling gas seal, dust deposits on the sealing surface are largely avoided and due to the "line contact" of the sealing elements of an elastomeric WO 2011/042102 PCT/EP2010/005520 -2 material with the stationary sealing support a high contact pressure and good tightness are achieved. As sealing strip, e.g. inexpensive commercially available metallic strand material can be used. 5 Preferably, the sealing strip is arranged on the upper surface of a stationary sealing plate of the cooling-air chamber wall and in particular provided to be replaceable. In a development of the invention, it is provided that the part of the cooling gas seal carried along with the sinter cooling chamber includes sealing elements of a preferably 10 heat-resistant elastomeric material, which are mounted with a vertical play such that they are seated on the sealing strip and slide along the sealing strip during the travel of the sinter cooling chamber. Such seal is self-compensating, because in the case of the end-face wear of the sealing elements, the same automatically maintain their sealing function with respect to the sealing support by readjustment. In this way, the service life 15 of the cooling gas seal is improved considerably. To realize the self-adjusting sealing function, it is furthermore advantageous when the sealing elements are mounted in a vertically movable manner by means of a possibly weight-loaded holder and a guide pin. The weight load can provide a sufficient contact 20 pressure of the sealing elements on the sealing strip of the stationary cooling-air cham ber wall, without impairing the slidability. For an easily replaceable assembly of the sealing elements, the guide pins can be received in possibly angular and releasable brackets of the sinter cooling chamber wall. 25 The respective, possibly two-part sealing element holder overlaps the associated sealing element e.g. in the manner of a framework, preferably in a roof-like manner with corresponding inclined surfaces, so that fine sinter dust easily can slip off downwards. In a development of the invention the end face of the sealing elements is formed with 30 such a width that even in the case of lateral displacements of the traveling sinter cool ing chamber they will always rest on the sealing strip.
WO 2011/042102 PCT/EP2010/005520 -3 In their lower region, the sealing elements preferably are made of a wear-resistant, creep-resistant polymer having good sliding properties, in particular of ultra-high mole cular weight polyethylene, whereas in their upper region they are made of a polymer that bonds well to metal, in particular of ultra-high molecular weight polyethylene. The 5 two polymer components should also be easily connectable with each other, e.g. by bonding or by co-extrusion. Further developments, advantages and possible applications of the invention can be taken from the following description of an embodiment and the drawing. All features 10 described and/or illustrated form the subject-matter of the invention per se or in any combination, also independent of their inclusion in individual claims and/or their back reference. In the drawing: 15 Fig. 1 shows a vertical section of a sinter cooler including the invention, and Fig. 2 shows a slightly enlarged segment of such sinter cooler in a side view. 20 The embodiment of a sinter cooler including the invention as shown in the Figures is part of a sintering plant for use in metallurgy. It serves to cool the lumpy sintered ore to be supplied to a blast furnace by means of cooling air and to supply the recovered thermal energy of the hot waste air for example to another load. 25 The sinter cooler has a cooling-air chamber 1 and a sinter cooling chamber 3 for the hot sinter material accommodated therein, which for example by means of bogie wheels 9 can travel over the same on a rail track 17, 19 and includes a perforated or slotted plate 2 for the supply of cooling air. To minimize a loss of cooling air, a cooling gas seal 4 is provided between the upper surface of the cooling-air chamber 1 and the 30 lower surface of the sinter cooling chamber 3. The upper portion of the cooling-air chamber wall 7 is formed by stationary sealing plates 18 on whose upper surface a sealing strip 5 with round, preferably circular cross-section is arranged as a stationary sealing support.
WO 2011/042102 PCT/EP2010/005520 -4 The part of the cooling gas seal 4 carried along with the sinter cooling chamber 3 includes sealing elements 6 of an elastomeric material. The sealing elements 6 are mounted with a vertical play such that they are seated on the upper surface of the 5 sealing strip 5 substantially round in cross-section of the stationary vertical cooling-air chamber wall 7, and during travel of the sinter cooling chamber 3 slide along the seal ing strip 5. The sealing elements 6 are arranged behind a protective side wall 8 of the sinter cool 10 ing chamber 3 such that they are protected against sinter dust and heat. The sealing elements 6 are mounted in a vertically movable manner by means of a possibly weight loaded holder 12 and a guide pin 10, so that they can compensate a possible wear by automatic readjustment. The upper head 21 of the guide pin 10 forms a stop when the sealing elements 6 have reached their maximum of admissible wear. In the illustrated 15 embodiment, the guide pins 10 are received in angular, possibly releasable brackets 11 in a vertically movable manner, wherein the through holes through which the guide pins 10 are passed are large enough to provide for freely shifting the sealing elements 6 with respect to the sealing strip 5. The holders 12 overlap the associated sealing ele ment 6 in a roof-like manner by forming corresponding inclined surfaces, so that sinter 20 dust obtained is easily discharged downwards. The end face 16 of the respective sealing elements 6 is formed with such a width that it will always rest on the sealing strip 5, even in the case of a lateral displacement of the traveling sinter cooling chamber 3 by e.g. ± 25 mm. Preferably, the end faces 16 have a 25 width of about 4 to 12 cm. For further improvement of a permanent operability of the cooling gas seal 4, the seal ing elements 6 can be formed in their lower region of another wear-resistant, creep resistant polymer having good sliding properties and in their upper region of a polymer 30 that bonds well to metal. Furthermore, the polymers expediently should be selected such that they can easily be connected with each other, e.g. by bonding or by co extrusion. It is, however, less expensive to use only one single material for the sealing WO 2011/042102 PCT/EP2010/005520 -5 elements. Preferably, ultra-high molecular weight polyethylenes are used for manufac turing the sealing elements.
WO 2011/042102 PCT/EP2010/005520 -6 List of Reference Numerals: 1 cooling-air chamber 5 2 perforated plate 3 sinter cooling chamber 4 cooling gas seal 5 sealing strip 6 sealing elements 10 7 cooling-air chamber wall 8 protective side wall 9 bogie wheels 10 guide pins 11 bracket 15 12 holder 14 sinter cooling chamber wall 16 end face 17 rail base 18 stationary sealing plates 20 19 rails for sinter cooling chamber 20 stationary sealing elements 21 head
Claims (9)
1. A sinter cooler of a sintering plant for use in metallurgy, comprising a cooling-air 5 chamber (1) and a sinter cooling chamber (3) including a perforated plate (2), which can travel over the same, and comprising a cooling gas seal (4) between the upper surface of the cooling-air chamber (1) and the lower surface of the sinter cooling cham ber (3), characterized in that the cooling gas seal (4) as stationary sealing support of the cooling-air chamber wall (7) for sealing elements (6) of an elastomeric material 10 carried along with the sinter cooling chamber (3) includes a sealing strip (5) with sub stantially round, preferably circular cross-section.
2. The sinter cooler according to claim 1, characterized in that the sealing strip (5) is arranged on the upper surface of a stationary sealing plate (18) of the cooling-air 15 chamber wall (7).
3. The sinter cooler according to claim 1 or 2, characterized in that the part of the cooling gas seal (4) carried along with the sinter cooling chamber (3) includes sealing elements (6) of an elastomeric material, which are mounted with a vertical play such 20 that they are seated on the sealing strip (5) and during travel of the sinter cooling chamber (3) slide along the sealing strip (5) .
4. The sinter cooler according to any of the preceding claims, characterized in that the sealing elements (6) are mounted in a vertically movable manner by means of 25 a possibly weight-loaded holder (12) and a guide pin (10).
5. The sinter cooler according to any of the preceding claims, characterized in that the guide pins (10) are received in possibly angular brackets (11) on the sinter cooling chamber wall (14). 30
6. The sinter cooler according to any of the preceding claims, characterized in that the respective sealing element holder (12) overlaps the associated sealing element (6) in a roof-like manner with corresponding inclined surfaces. WO 2011/042102 PCT/EP2010/005520 -8
7. The sinter cooler according to any of the preceding claims, characterized in that the end face (16) of the sealing elements (6) is formed with such a width that they will always rest on the sealing strip (5) even in the case of lateral displacements of the 5 traveling sinter cooling chamber (3).
8. The sinter cooler according to any of the preceding claims, characterized in that in their lower region the sealing elements (6) are made of a wear-resistant, creep resistant polymer having good sliding properties. 10
9. The sinter cooler according to any of the preceding claims, characterized in that in their upper region the sealing elements (6) are made of a polymer that bonds well to metal. 15
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009048722.0 | 2009-10-08 | ||
| DE200910048722 DE102009048722A1 (en) | 2009-10-08 | 2009-10-08 | sinter cooler |
| PCT/EP2010/005520 WO2011042102A1 (en) | 2009-10-08 | 2010-09-08 | Sinter cooler with adjustable cooling gas seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2010305133A1 true AU2010305133A1 (en) | 2012-04-26 |
| AU2010305133B2 AU2010305133B2 (en) | 2015-01-22 |
Family
ID=43304152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2010305133A Ceased AU2010305133B2 (en) | 2009-10-08 | 2010-09-08 | Sinter cooler with adjustable cooling gas seal |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP2486159B1 (en) |
| AU (1) | AU2010305133B2 (en) |
| BR (1) | BR112012007982A2 (en) |
| DE (1) | DE102009048722A1 (en) |
| EA (1) | EA020678B1 (en) |
| ES (1) | ES2568646T3 (en) |
| UA (1) | UA103112C2 (en) |
| WO (1) | WO2011042102A1 (en) |
| ZA (1) | ZA201202057B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865743B (en) * | 2012-10-23 | 2014-06-04 | 中冶长天国际工程有限责任公司 | Sealing device and method used between ignition furnace in sintering device and trolley |
| CN106959016B (en) * | 2016-01-08 | 2019-03-05 | 宝山钢铁股份有限公司 | A kind of chute-type sealing device for upper portion of annular cooler trolley |
| CN106482528A (en) * | 2016-11-11 | 2017-03-08 | 攀钢集团西昌钢钒有限公司 | A kind of sealing device of sintering circular cooler |
| CN106403621B (en) * | 2016-11-29 | 2018-12-14 | 安徽工业大学 | A kind of sinter cooler and its dynamic sealing equipment |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2844227C2 (en) * | 1978-10-11 | 1987-03-26 | Metallgesellschaft Ag, 6000 Frankfurt | Round cooler for hot lumpy material |
| DE3037222A1 (en) * | 1980-10-02 | 1982-04-29 | TKV Transportanlagen - Konstruktions- und Vertriebs-Gesellschaft mbH, 6380 Bad Homburg | DEVICE FOR THE THERMAL TREATMENT OF PIECE OF GOODS IN CIRCULAR TROUGHS WITH GAS-PERMANENT FLOORS |
| JPS5877537A (en) * | 1981-11-04 | 1983-05-10 | Nagata Seisakusho:Kk | Preventing method for escape of air from sintered ore cooler |
| JPS5913891A (en) * | 1982-07-15 | 1984-01-24 | 三菱重工業株式会社 | Sealing device for grate machine |
| US5148687A (en) * | 1990-09-28 | 1992-09-22 | Hitachi Zosen Corporation | Cooling apparatus for bulk material |
| JP3146151B2 (en) * | 1996-04-04 | 2001-03-12 | 中外炉工業株式会社 | Strip furnace sealing device |
| KR100435484B1 (en) * | 1999-12-28 | 2004-06-10 | 주식회사 포스코 | Sliding seal apparatus of pallet |
| CN201032376Y (en) * | 2007-04-05 | 2008-03-05 | 中冶长天国际工程有限责任公司 | Trolley lower part sealing device for circular cooler |
-
2009
- 2009-10-08 DE DE200910048722 patent/DE102009048722A1/en not_active Withdrawn
-
2010
- 2010-09-08 EP EP10755100.4A patent/EP2486159B1/en not_active Not-in-force
- 2010-09-08 UA UAA201203095A patent/UA103112C2/en unknown
- 2010-09-08 AU AU2010305133A patent/AU2010305133B2/en not_active Ceased
- 2010-09-08 EA EA201290180A patent/EA020678B1/en not_active IP Right Cessation
- 2010-09-08 BR BR112012007982A patent/BR112012007982A2/en not_active IP Right Cessation
- 2010-09-08 WO PCT/EP2010/005520 patent/WO2011042102A1/en active Application Filing
- 2010-09-08 ES ES10755100.4T patent/ES2568646T3/en active Active
-
2012
- 2012-03-20 ZA ZA2012/02057A patent/ZA201202057B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011042102A1 (en) | 2011-04-14 |
| ES2568646T3 (en) | 2016-05-03 |
| DE102009048722A1 (en) | 2011-04-21 |
| UA103112C2 (en) | 2013-09-10 |
| EA020678B1 (en) | 2014-12-30 |
| ZA201202057B (en) | 2013-05-29 |
| EP2486159B1 (en) | 2016-01-27 |
| AU2010305133B2 (en) | 2015-01-22 |
| EP2486159A1 (en) | 2012-08-15 |
| BR112012007982A2 (en) | 2016-03-29 |
| EA201290180A1 (en) | 2012-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) | ||
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |