EP2593740A1 - Kühlvorrichtung für heisses schüttgut - Google Patents
Kühlvorrichtung für heisses schüttgutInfo
- Publication number
- EP2593740A1 EP2593740A1 EP11728831.6A EP11728831A EP2593740A1 EP 2593740 A1 EP2593740 A1 EP 2593740A1 EP 11728831 A EP11728831 A EP 11728831A EP 2593740 A1 EP2593740 A1 EP 2593740A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling tower
- bulk material
- gas flow
- cooling
- cooling device
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 130
- 239000013590 bulk material Substances 0.000 title claims abstract description 58
- 108090000623 proteins and genes Proteins 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 65
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 235000010678 Paulownia tomentosa Nutrition 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- F27D15/0286—Cooling in a vertical, e.g. annular, shaft
-
- 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
-
- 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
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
- C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
Definitions
- the present invention relates to a hot bulk cooling device.
- the object of the present invention is to provide possibilities by means of which the heat generated during the cooling of hot bulk waste heat can be used more efficiently.
- the task is done by a cooling device for hot
- That the cooling device has a cooling tower with a vertical main axis, in which the hot bulk material is cooled by means of a gas stream,
- That the cooling device comprises a feeder, by means of which the hot bulk material is poured from above into the cooling tower, so that the hot bulk material is accumulated in the cooling tower, - That the cooling device has a removal device, by means of which the bulk material is removed in the cold state down from the cooling tower, so that the remaining material in the cooling tower slips down,
- That the cooling device comprises a gas conveying device by means of which the gas flow is conveyed through the cooling tower,
- the cooling device has a discharge device, via which the gas stream is discharged from the cooling tower, - that in the cooling tower, a plurality of gas flow guides is arranged, which, starting from arranged in the tower outer wall inlets to extend radially inward on the main axis,
- gas flow guides are formed as elongated guides, which have over their seen in their respective direction of extension Ausrich length for the gas flow, so that the gas stream is passed into the hot bulk material located in the cooling tower,
- Ab216 Road is disposed in the upper region of the cooling tower, so that the gas stream flows through the hot bulk material located in the cooling tower from bottom to top.
- the gas flow guides form an angle of inclination with the horizontal, so that the gas flow guides increase toward the main axis.
- the efficiency in exploiting the waste heat can be further optimized. This is especially true when the angle of inclination is chosen so that it corresponds approximately to the bulk material angle that forms the hot bulk material with the horizontal.
- the angle of inclination is therefore preferably between 20 ° and 45 °, usually between 25 ° and 35 °.
- the outlets are arranged exclusively on the underside of the gas flow guides. This configuration ensures that the risk ei ⁇ ner blockage of the outlets is minimized or even avoided altogether.
- An arrangement of the outlets exclusively on the underside of the gas stream guides may for example be achieved in that the gas flow guides each comprise two side preparation ⁇ surface and the side portions bridging the roof area, that the side portions extend substantially vertically and that the roof area in cross-section the shape of an inverted " V "has.
- the gas flow guides extend to the main axis or up to a arranged on the main axis hub. It is thereby achieved that the hot bulk material is practically ⁇ table flows through the entire cross section of the cooling tower from the gas stream and cooled.
- the discharge device is arranged in the Turmau touchwan.
- feeding device can be designed without regard to the design of the discharge device.
- the feed device is designed as a rotary chute. This embodiment achieves a better distribution of the hot bulk material over the cross-sectional area of the cooling tower.
- cooling tower is arranged in a building whose side walls extend from below to above the inlet
- the removal means is attached ⁇ arranged inside the building, so that the extracted from the cooling tower bulk ⁇ initially is well within the building, -
- the cooling device comprises an endless conveyor, by means of which the removed from the cooling tower
- the endless conveying device has trough-like containers which, viewed transversely to the conveying direction, have a container cross-section and, viewed in the conveying direction, have a container length,
- This embodiment is particularly advantageous when the gas conveyor is designed as a fan. Through them it is achieved that leakage losses of the gas flow are mini ⁇ mized.
- FIG. 1 shows a cooling device for hot bulk material
- a cooling device for cooling hot bulk material 1 (for example, small beads of sintered iron ore) has a cooling tower 2 with a vertical main axis 3.
- the hot bulk material 1 is cooled by means of a gas flow 4.
- the cooling device has a feed device 5. By means of the feeder 5, the hot bulk material 1 of poured into the top of the cooling tower 2. The hot bulk material 1 is thereby accumulated in the cooling tower 2.
- the feeder 5 may be formed, for example, as a rotary chute according to the illustration of FIG 1, which is rotated at a predetermined speed n.
- the speed n is usually relatively small.
- the hot bulk material 1 is better distributed over the (horizontal) cross-section of the cooling tower 2.
- An effective radius r with which the Zuzhoueinrich- tung 5, the hot bulk material 1 spread, but is considerably smaller than the radius R of the cooling tower in the re ⁇ gel 2nd ins ⁇ special is the effective radius r with which the feed device ⁇ 5 distributes the hot bulk material 1, usually a maximum of 30% of the radius R of the cooling tower 2.
- a discharge cone is formed in the vicinity of the tower outer wall 6 (ie, the vertical or substantially vertical wall of the cooling tower 2).
- the cone has a typical bulk material angle.
- the bulk material angle is - depending on the bulk material 1 - usually between about 30 ° and about 38 °.
- the cooling device furthermore has a removal device
- the Ent ⁇ receiving device 7 may for example be designed as a push table, which moves in a circle.
- the cooling device furthermore has a gas delivery device
- the gas delivery device 8 By means of the gas delivery device 8, the gas stream 4 is conveyed through the cooling tower 2.
- the gas conveying device 8 is preferably designed as a fan. In principle, a suction device is ever ⁇ but possible.
- the cooling device furthermore has a discharge device 9. Via the discharge device 9, the gas stream 4 is discharged from the cooling tower 2.
- the cooling tower 2 (relatively) cold. Typical temperatures are between 70 ° C and 150 ° C.
- the cooling of the hot bulk material 1 takes place essentially by means of the conveyed through the cooling tower 2 gas stream 4. Accordingly, the gas stream 4 in the cold state (temperature typically equal to ambient temperature) in the cooling tower 2 passed and hot (temperatures typically between 600 ° C and 800 ° C) discharged from the cooling tower 2.
- the cooling tower 2 is usually arranged in a building 10.
- the building 10 has side walls 11.
- the side walls 11 extend, starting from the bottom, up to an intermediate height h of the cooling tower 2.
- the intermediate height h bezo ⁇ gene on the entire height H of the cooling tower 2, Zvi ⁇ rule as a rule 40% and 60% of the total amount H of the cooling tower 2.
- the gas delivery device 8 can - in particular, if it is designed as a fan - be angeord ⁇ net within the building 10. As a rule, however, the gas delivery device 8 is arranged outside the building 10.
- the discharge device 9 is arranged in the upper region of the cooling tower 2 and thus outside of the building 10.
- the discharge device 9 can be arranged on the upper side 12 of the cooling tower 2.
- the discharge device 9 is arranged in the tower outer wall 6, that is to say laterally.
- a plurality of gas flow guides 13 is arranged. In principle, the minimum number of gas flow 13 two. In practice, however, at least six gas flow guides 13 are present. The maximum number of gas flow guides 13 is not limited in principle. In general, however, numerical values of 40 are not exceeded. In most cases, the number of gas flow guides 13 is between 8 and 16.
- the gas flow guides 13 are formed as shown in FIG 1 as elongated guides. They have inlets 14 which are arranged in the tower outer wall 6. Starting from the inlets 14, the gas flow guides 13 extend radially inward towards the main axis 3 of the cooling tower 2.
- the gas flow guides 13 have - over their seen in their respective extension direction length - outlets 15 for the gas stream 4.
- the - at this time still cold - gas ⁇ stream 4 is therefore introduced via the inlets 14 in the gas flow guides 13 and passed from there via the outlets 15 in the cooling tower 2 located in the hot bulk material.
- the cross section of the gas flow guides 13 can be seen over its length constant.
- the cross-section ⁇ but reduces the gas flow passages 13 corresponding to the illustration of FIG 1 to the main axis 3 of the cooling tower 2 to.
- the gas flow guides 13 are arranged in the direction of the main axis 3 of the cooling tower 2 in the central region 16 of the cooling tower 2.
- the central region 16 extends from about 30% of the total height H of the cooling tower 2 to about 70% of the total height H of the cooling tower 2. Regardless of the exact arrangement of the gas flow guides 13, however, the gas flow guides 13 are arranged below the discharge device 9. When the cooling tower 2 is arranged in the building 10, the inlets 14 are further arranged below the roof 17 of the building 10. The side walls 11 of the building 10 therefore extend beyond the inlets 14 of the gas flow guides 13. Due to the arrangement of the gas flow guides 13 below the discharge device 9, the gas flow 4 flows through the hot bulk material 1 in the cooling tower 2 from bottom to top (countercurrent principle). ,
- the gas flow guides 13 can in principle run horizontally. However, the gas flow guides 13 preferably form an inclination angle ⁇ with the horizontal, as shown in FIG. 1, so that the gas flow guides 13 increase toward the main axis 3 of the cooling tower 2.
- the tilt angle can ⁇ ß be determined as needed.
- the angle of inclination ⁇ is preferably selected such that it approximately corresponds to the bulk material angle. In particular, the inclination angle ⁇ should be between 20 ° and 45 °. Particular preference is given to values between 28 ° and 40 °.
- the outlets 15 in the gas flow guides 13 at any desired location.
- the outlets 15 are arranged exclusively on the underside of the gas flow guides 13, as shown in FIG.
- the gas flow guides 13, as shown in FIG 2 be open on its entire underside.
- the gas stream guides 13 preferably each have two side portions 18 and a Dachbe on ⁇ rich 19th
- the side areas 18 are substantially vertical.
- the roof area 19 bridges over the side areas 18. It preferably has the shape of an inverted "V" in cross section.
- the gas flow guides 13 end in front of the main axis 3 of the cooling tower 2.
- the gas flow passages 13, however, extend to the main axis 3 (or up to the region of the main axis 3 of the cooling tower 2 at ⁇ parent "hub" 20).
- the removal device 7 is usually arranged within the building 10 as well.
- the removed from the cooling tower 2 bulk material 1 is therefore initially (still) within the building 10.
- the cooling device therefore has in this case a device by means of which the removed from the cooling tower 2 bulk material 1 is discharged from the building 10.
- This device is preferably designed according to FIG 3 as Endlosför ⁇ der sexual 21.
- the endless conveying device 21 has trough-like containers 23.
- the containers 23 have a container cross section transversely to the conveying direction x. Viewed in the conveying direction x, they have a container length 1 according to FIG.
- the Endlos desemblein ⁇ direction 21 may be formed for this purpose as a so-called Wellkantgurt with transverse studs.
- the passage regions 22, through which the Endlosför ⁇ der adopted 21 (more precisely, the container 23) exiting from the building 10 and enter the building 10 are, preferably ⁇ designed as tunnels.
- the tunnels 22 have a cross-section which, according to FIG. 4, is adapted to the container cross-section. If necessary, can be arranged on the sides of doing ⁇ neland sealing lips or the like.
- the tunnels 22 furthermore each have, in the conveying direction x, a tunnel length L which is greater than the length of the container 1.
- the tunnel length L is even Minim ⁇ least twice as large as the length of the container 1, for example about 2.5 times to about 3.5 times as large.
- the present invention has many advantages.
- Insbeson ⁇ particular is the cooling of hot bulk material 1 in the cooling tower 2 with a superior efficiency possible.
- the cooling device according to the invention has only a few mechanical components . It is therefore cheaper to purchase and in terms of maintenance than the systems of the prior art.
- a smaller amount of cooling air is required than in the prior art.
- the gas delivery device 8 can therefore be smaller in size than in comparable cooling devices of the prior art.
- any of the discharge device 9 downstream cleaning and dedusting devices can be dimensioned smaller than in the prior art.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
- Processing Of Solid Wastes (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL11728831T PL2593740T3 (pl) | 2010-07-13 | 2011-06-29 | Urządzenie chłodzące dla gorącego materiału sypkiego |
HRP20141015AT HRP20141015T1 (hr) | 2010-07-13 | 2014-10-22 | Uređaj za hlađenje vrelog nagomilanog materijala |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA1184/2010A AT510203B1 (de) | 2010-07-13 | 2010-07-13 | Kühlvorrichtung für heisses schüttgut |
PCT/EP2011/060897 WO2012007277A1 (de) | 2010-07-13 | 2011-06-29 | Kühlvorrichtung für heisses schüttgut |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2593740A1 true EP2593740A1 (de) | 2013-05-22 |
EP2593740B1 EP2593740B1 (de) | 2014-07-30 |
Family
ID=44486896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11728831.6A Active EP2593740B1 (de) | 2010-07-13 | 2011-06-29 | Kühlvorrichtung für heisses schüttgut |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP2593740B1 (de) |
KR (1) | KR101618246B1 (de) |
AR (1) | AR082162A1 (de) |
AT (1) | AT510203B1 (de) |
BR (1) | BR112013000772B1 (de) |
ES (1) | ES2516915T3 (de) |
HR (1) | HRP20141015T1 (de) |
PL (1) | PL2593740T3 (de) |
RU (1) | RU2555287C2 (de) |
TW (1) | TWI496893B (de) |
UA (1) | UA106666C2 (de) |
WO (1) | WO2012007277A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2980515A1 (de) * | 2014-07-28 | 2016-02-03 | Paul Wurth S.A. | Sinterkühler |
PL3563108T3 (pl) * | 2016-12-29 | 2022-05-23 | Primetals Technologies Austria GmbH | Urządzenie zawierające chłodnicę szybową i urządzenie wejściowe, oraz sposób chłodzenia gorącego spieku |
CN109373768B (zh) * | 2018-10-18 | 2020-01-10 | 湖南大学 | 一种具有循环台车的立式循环冷却机 |
CN112026049B (zh) * | 2020-06-18 | 2022-04-22 | 浙江汇隆新材料股份有限公司 | 一种色母粒的干燥后级回收装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2582116A (en) * | 1948-08-24 | 1952-01-08 | Phillips Petroleum Co | Pebble heater chamber design |
DE2229810A1 (de) * | 1972-06-19 | 1974-01-17 | Kloeckner Humboldt Deutz Ag | Kuehlvorrichtung fuer stueckiges ofengut |
CS185910B1 (en) * | 1975-10-23 | 1978-10-31 | Oldrich Kucerik | Granulated material cooling apparatus |
DD132999A1 (de) * | 1977-07-01 | 1978-11-22 | Gerhard Teichler | Verfahren und vorrichtung zum waermetausch von schuettguetern |
US4189299A (en) * | 1978-03-13 | 1980-02-19 | Calcimatic International, Limited | Direct cooler for calcining apparatus |
JPS55119138A (en) * | 1979-03-09 | 1980-09-12 | Sumitomo Metal Ind Ltd | Cooling method for sintered ore and its device |
JPS5877537A (ja) | 1981-11-04 | 1983-05-10 | Nagata Seisakusho:Kk | 焼結鉱冷却機の漏風防止方法 |
JPH10265858A (ja) | 1997-03-26 | 1998-10-06 | Nkk Corp | 高品質焼結鉱の製造方法 |
DE102004054417B4 (de) * | 2004-11-11 | 2014-02-20 | Khd Humboldt Wedag Gmbh | Verfahren zur Regelung des Betriebes eines Schüttgutrostkühlers |
CN201104092Y (zh) * | 2007-08-28 | 2008-08-20 | 高家忠 | 内置式煤基海绵铁竖炉 |
US7887030B2 (en) * | 2008-05-19 | 2011-02-15 | Spx Cooling Technologies, Inc. | Wet/dry cooling tower and method |
DE102008031219B3 (de) * | 2008-07-03 | 2009-06-25 | Gea Energietechnik Gmbh | Hybridkühlturm |
-
2010
- 2010-07-13 AT ATA1184/2010A patent/AT510203B1/de not_active IP Right Cessation
-
2011
- 2011-06-29 KR KR1020137003566A patent/KR101618246B1/ko active IP Right Grant
- 2011-06-29 WO PCT/EP2011/060897 patent/WO2012007277A1/de active Application Filing
- 2011-06-29 BR BR112013000772-9A patent/BR112013000772B1/pt active IP Right Grant
- 2011-06-29 RU RU2013105849/02A patent/RU2555287C2/ru active
- 2011-06-29 ES ES11728831.6T patent/ES2516915T3/es active Active
- 2011-06-29 EP EP11728831.6A patent/EP2593740B1/de active Active
- 2011-06-29 UA UAA201300422A patent/UA106666C2/uk unknown
- 2011-06-29 PL PL11728831T patent/PL2593740T3/pl unknown
- 2011-07-11 TW TW100124425A patent/TWI496893B/zh active
- 2011-07-13 AR ARP110102511A patent/AR082162A1/es not_active Application Discontinuation
-
2014
- 2014-10-22 HR HRP20141015AT patent/HRP20141015T1/hr unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2012007277A1 * |
Also Published As
Publication number | Publication date |
---|---|
HRP20141015T1 (hr) | 2015-02-13 |
TWI496893B (zh) | 2015-08-21 |
KR101618246B1 (ko) | 2016-05-18 |
ES2516915T3 (es) | 2014-10-31 |
AR082162A1 (es) | 2012-11-14 |
BR112013000772B1 (pt) | 2020-06-23 |
KR20130039333A (ko) | 2013-04-19 |
EP2593740B1 (de) | 2014-07-30 |
AT510203B1 (de) | 2012-05-15 |
PL2593740T3 (pl) | 2015-03-31 |
RU2013105849A (ru) | 2014-08-20 |
WO2012007277A1 (de) | 2012-01-19 |
TW201211273A (en) | 2012-03-16 |
BR112013000772A2 (pt) | 2016-05-24 |
UA106666C2 (uk) | 2014-09-25 |
AT510203A1 (de) | 2012-02-15 |
RU2555287C2 (ru) | 2015-07-10 |
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