EP3111150A1 - Vorrichtung zum vorwärmen von zementrohmehl für die zementklinkerherstellung - Google Patents
Vorrichtung zum vorwärmen von zementrohmehl für die zementklinkerherstellungInfo
- Publication number
- EP3111150A1 EP3111150A1 EP15711815.9A EP15711815A EP3111150A1 EP 3111150 A1 EP3111150 A1 EP 3111150A1 EP 15711815 A EP15711815 A EP 15711815A EP 3111150 A1 EP3111150 A1 EP 3111150A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- uprights
- support structure
- triangular
- plan
- 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.)
- Withdrawn
Links
- 239000004568 cement Substances 0.000 title claims abstract description 19
- 235000012054 meals Nutrition 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 238000010438 heat treatment Methods 0.000 title abstract 2
- 239000007789 gas Substances 0.000 claims abstract description 16
- 239000000725 suspension Substances 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 15
- 239000003570 air Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/432—Preheating without addition of fuel
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/434—Preheating with addition of fuel, e.g. calcining
-
- 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
- F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
- F27B15/003—Cyclones or chain of cyclones
-
- 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
- F27B7/2016—Arrangements of preheating devices for the charge
-
- 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
- F27B7/2016—Arrangements of preheating devices for the charge
- F27B7/2025—Arrangements of preheating devices for the charge consisting of a single string of cyclones
- F27B7/2033—Arrangements of preheating devices for the charge consisting of a single string of cyclones with means for precalcining the raw material
-
- 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
- F27B7/2016—Arrangements of preheating devices for the charge
- F27B7/2041—Arrangements of preheating devices for the charge consisting of at least two strings of cyclones with two different admissions of raw material
-
- 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
- F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
Definitions
- the invention relates to a device for preheating cement raw meal for cement clinker production comprising at least one heat exchanger strand for the task of cement raw meal in countercurrent to withdrawn through the heat exchanger strand hot gases and a support structure for the at least one heat exchanger strand, the heat exchanger strand an honor- number of each other connected, successively flowed through heat exchangers comprises.
- the raw meal is heated in countercurrent to the withdrawn from the rotary kiln combustion exhaust gases, wherein at a corresponding temperature can also be precalcined.
- the hot process gas of the rotary kiln can be used thermally in this way.
- the heat exchanger tower comprises a tower-like support structure on which the heat exchangers are supported.
- the heat exchanger tower is the most expensive component when constructing a cement production plant. The reason is that the construction costs generally depend mainly on the volume of construction, regardless of whether it is a steel, concrete or combined steel / concrete plant Structure.
- the heat exchanger tower can be up to 120 m high and cover a floor area of up to 200 m 2 for a one-tier installation, so that the construction costs are correspondingly high.
- the design specifically to local environmental conditions, such as earthquakes and wind situation adjusted ⁇ the need.
- the support structure of the heat exchanger tower generally has a rectangular plan, wherein the heat exchanger together with these connecting connecting pipes, the platforms, struts and the like. Within the rectangular plan are arranged on ⁇ .
- the supporting structure consists of the load transfer in a foundation serving uprights, which are usually Wenig ⁇ least four uprights provided, ⁇ which form the corners of the right ⁇ square ground plan.
- the disadvantage of such a support structure is that the volume of construction and thus the construction costs are high. Furthermore, the volume is not optimally utilized, because the heat exchanger of a heat exchanger train are often attached ⁇ arranged within a certain radius around a central vertical axis so that the corner regions of the rectangular supporting structure are not utilized.
- the invention therefore aims to significantly increase the construction costs of a heat exchanger tower . to reduce and possibly to achieve better space utilization.
- the device of the type mentioned is according to the invention substantially further developed such that the support structure of the load transfer comprises in at least one foundation serving uprights, which form a triangular ground plan together.
- the invention thus comes off the conventional idea that the support structure of a heat exchanger tower must be rectangular or square.
- the support structure according to the invention has a triangular instead of a rectangular plan. This leads to a significant reduction in the volume of construction, because the base area of the heat exchanger tower can be reduced in this way with the same configuration and arrangement of the heat exchangers.
- the triangular floor plan can be used more efficiently by the heat exchangers than a rectangular floor plan, leaving less space unused.
- each upright has a separate foundation, and the volume and hence the building costs for the foundation can be reduced by the three ⁇ shaped structure.
- the inventive construction also offers static advantages over conventional support structures.
- a carry ⁇ gagture with only three uprights as opposed to those with more than three uprights no strain states when the foundation of a post falls.
- the load transfer into a foundation serving stanchion together form a triangular outline, this means that no load-bearing in a foundation serving uprights of the respective support structure are arranged outside the triangular plan.
- the definition of the triangular plan thus includes all the load transfer in a foundation serving uprights of the support structure.
- the triangular outline of the support structure is preferably achieved by providing three stanchions arranged in a triangle. An arrangement of three pillars in the triangle ensures the same stability as the conventional structures with a rectangular plan, which consist of four pillars.
- the uprights preferably extend substantially over the entire height of the heat exchanger strand.
- the uprights are, as is well known, anchored in a foundation or attached to another floor construction or ground-level construction, so that the vertical load of the uprights caused by the heat exchangers can be removed into the foundation or the ground.
- the purposes of the inven- tion which form the triangular layout, are to be considered in particular those which remove the brunt of the mecanictau ⁇ shear strand in a foundation. ⁇
- These are therefore the main persons, and it is also possible for them to be provided with a sideline.
- the uprights can be formed by reinforced concrete columns or the like.
- the execution of the individual pillars is basically arbitrary.
- the uprights may have a square, rectangular or round cross-section.
- the uprights can be full or hollow, the stayer in the case of a hollow design of the implementation of lines of all kinds, such as water, air or power lines can serve.
- the cavity of a stayer can also accommodate a passenger elevator.
- a particularly good stability can be achieved according to a preferred embodiment in that the posts are arranged inclined relative to one another.
- the three triangles arranged in the triangle then form side edges of a three-sided pyramidal stump.
- the uprights can make an angle of 1-10 ° with the vertical one.
- a particularly rigid construction is preferably achieved in that the posts are connected to each other by means of braces or platforms, which are preferably arranged within the triangular plan.
- the platforms can be provided in several floors, which are assigned to the individual heat exchanger stages, so that easy access to the heat exchangers is ensured.
- the heat exchangers as known per se, as a floating gas heat exchanger, in particular cyclone, formed.
- the heat exchangers can in principle be arranged within the triangular plan defined by the uprights.
- the volume of construction of the support structure of the heat exchanger tower can be further reduced by the fact that the heat exchangers with a part of their volume on the triangular base Riss, in particular over the side edges of the triangular outline, project.
- the inventive construction of the support structure of the heat exchanger tower is particularly suitable for receiving a single heat exchanger strand.
- the invention is preferably further developed in such a way that the support structure with its stanchions forming the triangular plan view carries only one heat exchanger strand.
- the installation space of the support structure can be utilized particularly efficient if, as corresponds to a preferred embodiment ', the heat exchanger of a heat exchanger train are arranged -zentralsymmetrisch about a central axis.
- the central axis extends substantially through the center of the circle of the triangular plan.
- the invention therefore according to another aspect relates to a combination of a first heat exchanger tower with at least one immediately adjacent thereto further heat exchanger tower, two pillars of the support structure of the first heat exchanger tower are also pillars of the second heat exchanger tower, wherein the first heat exchanger tower and the at least one further bathtau ⁇ shear tower respectively only carry a heat exchanger strand.
- the two triangular layouts of the two heat exchanger towers together form a diamond-shaped layout.
- FIG. 1 shows a cement clinker production plant according to the prior art
- FIG. 2 shows a first embodiment of a heat exchanger tower according to the invention
- FIG. 3 shows a second embodiment of a heat exchanger tower according to the invention.
- a cement clinker production plant is shown schematically, in which at a point schematically shown with 1 notified point raw meal in countercurrent to the hot exhaust gases of a clinker furnace 2 preheated in a preheater 3 and calcined in a calciner 4.
- the clinker leaves the clinker furnace 2 at the point designated 5 and is cooled in a clinker cooler 6.
- the cooled clinker leaves the clinker cooler 6 at the point designated 7,
- the preheater 3 may have one or more heat exchanger strands.
- the strand has a plurality of series-connected Zyklon-Schwebegas139leyern, wherein the first Schwebegas139leyer with 8, the last Schwebegas139leyer with 9 and the intervening Schwebegas139leyer are designated 10.
- the furnace blower 11 generates the required negative pressure so that the furnace exhaust gas exiting on the hot meal application side 12 of the clinch oven 2 is drawn through the calciner 4 and the pig blow gas heat exchangers 8, 10 and 9 connected in series and the hot gas outlet 13.
- the Brennstoffaufgäbe for the firing of the calciner 4 is shown schematically at 15.
- the clinker cooler 6 has a plurality of blowers 16, via which ambient air is blown. The air passes through the clinker cooler 6 and leaves the clinker cooler 6 via the tertiary air outlet 17 and the tertiary air channel 18, the tertiary air channel opening into the calciner 4.
- FIG. 2 an inventive heat exchanger tower for preheating cement raw meal is shown in plan view. It can be seen that the heat exchanger tower has a support structure 19 which comprises three vertical uprights 20, which form a triangle 21 in plan view. Within the triangular outline of the support structure 19, a heat exchanger strand of a calciner 4 and a plurality of heat exchangers 8,9,10, in particular cyclone, arranged and supported on the support structure 19 in a manner not shown.
- FIG. 2 shows that the clinker furnace 2 is connected to the calciner 4 on the hot meal side.
- the heat exchangers 8,9 and 10 are arranged as shown in Fig. 1, wherein the path of the kiln exhaust gas from one heat exchanger to the next by arrows is shown schematically.
- the heat exchangers 8, 9 and 10 are in this case arranged essentially centrally symmetrically about a central axis.
- Dashed line 22 shows for comparison the outline of a conventional rectangular support structure of a heat exchanger tower, as it is dimensioned according to the prior art for receiving the heat exchanger strand shown in Fig. 2. It can be seen that the base area and thereby the overall volume can be significantly reduced by the construction according to the invention.
- FIG. 1 shows that the path of the kiln exhaust gas from one heat exchanger to the next by arrows.
- the heat exchangers 8, 9 and 10 are in this case arranged essentially centrally symmetrically about a central axis.
- Dashed line 22 shows for
- the calciner 4 and the heat exchangers 8, 9, 10 of the heat exchanger string are arranged with their entire volume within the triangular plan 21. Only work surfaces, staircases or other construction and maintenance facilities and the like. can be arranged outside of the plan 21. The base area can be further reduced if it is accepted that the calciner 4 and the heat exchangers 8, 9 and 10 protrude with a part of their volume over the triangular plan, as shown in FIG 3 is shown.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Furnace Details (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA129/2014A AT515421B1 (de) | 2014-02-25 | 2014-02-25 | Vorrichtung zum Vorwärmen von Zementrohmehl für die Zementklinkerherstellung |
| PCT/IB2015/000174 WO2015128714A1 (de) | 2014-02-25 | 2015-02-17 | Vorrichtung zum vorwärmen von zementrohmehl für die zementklinkerherstellung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3111150A1 true EP3111150A1 (de) | 2017-01-04 |
Family
ID=52727169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15711815.9A Withdrawn EP3111150A1 (de) | 2014-02-25 | 2015-02-17 | Vorrichtung zum vorwärmen von zementrohmehl für die zementklinkerherstellung |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20170016669A1 (de) |
| EP (1) | EP3111150A1 (de) |
| CN (1) | CN106029598A (de) |
| AP (1) | AP2016009399A0 (de) |
| AT (1) | AT515421B1 (de) |
| CA (1) | CA2940571A1 (de) |
| MA (1) | MA39279A1 (de) |
| MX (1) | MX2016010941A (de) |
| PH (1) | PH12016501679A1 (de) |
| WO (1) | WO2015128714A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111504046B (zh) * | 2019-01-30 | 2023-04-07 | 新疆八一钢铁股份有限公司 | 料仓热烟气烘料装置 |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2672491A (en) * | 1951-07-03 | 1954-03-16 | Air Reduction | Electric arc furnace and cover with electrodes and feed conduits |
| FR1102621A (fr) * | 1953-05-26 | 1955-10-24 | Procédé et installation de calcination de la pierre à chaux | |
| US2700768A (en) * | 1953-12-14 | 1955-02-01 | Kress Herman | Adjustable wire frame brassiere |
| US3419968A (en) * | 1967-06-16 | 1969-01-07 | Westfalia Dinnendahl | Apparatus for drying and pre-heating of pulverulent material, particularly raw cement material |
| GB1508840A (en) * | 1975-10-15 | 1978-04-26 | Smidth & Co As F L | Kiln plant |
| US4249376A (en) * | 1978-06-13 | 1981-02-10 | Weckerly Darl E | Pump jacks |
| FR2537711B1 (fr) * | 1982-12-14 | 1987-03-20 | Fives Cail Babcock | Echangeur pour le traitement thermique de matieres pulverulentes au moyen de gaz |
| FR2545916B1 (fr) * | 1983-05-10 | 1985-07-19 | Fives Cail Babcock | Installation de traitement thermique de mineraux sous forme pulverulente |
| US4510369A (en) * | 1983-08-15 | 1985-04-09 | Engelhard Corporation | Rotary furnace |
| FR2563516B1 (fr) * | 1984-04-26 | 1986-06-27 | Fives Cail Babcock | Installation de traitement thermique de matieres minerales et structure de support pour cette installation |
| CN1004299B (zh) * | 1985-12-30 | 1989-05-24 | 南京化工学院 | 水泥生料粉立筒预热器系统 |
| DE3631061A1 (de) * | 1986-09-12 | 1988-03-24 | Gutehoffnungshuette Man | Verbrennungsanlage fuer rueckstaende der chemischen industrie |
| CN2209675Y (zh) * | 1994-03-04 | 1995-10-11 | 陈绍希 | 回转窑生料粉塔式双传热旋风换热器和收尘器 |
| DE4435871A1 (de) * | 1994-10-07 | 1996-04-11 | Heidelberger Zement Ag | Schwebegaswärmetauscher als Vorschaltstufe vor einen Trockendrehofen zum Brennen von Zementklinker oder dergleichen |
| JPH09199558A (ja) * | 1996-01-16 | 1997-07-31 | Sumitomo Sitix Corp | 半導体基板の表面酸素濃度測定方法 |
| US6027540A (en) * | 1997-03-31 | 2000-02-22 | Destec Energy, Inc. | Apparatus for removal of particulate matter from gas streams |
| ATE262659T1 (de) * | 1999-07-30 | 2004-04-15 | Smidth & Co As F L | Verfahren und vorrichtung zur verbrennung von brennbaren abfällen bei der herstellung von zementklinker |
| EP1756502B1 (de) * | 2004-05-10 | 2014-04-09 | FLSmidth A/S | Verfahren und vorrichtung zur verbrennung von brennbarem abfall |
| AT502254A1 (de) * | 2005-08-11 | 2007-02-15 | Holcim Ltd | Verfahren zum vorerhitzen von zementrohmehl sowie vorrichtung zur durchführung dieses verfahrens |
| IT1391447B1 (it) * | 2008-12-23 | 2011-12-23 | Italcementi Spa | Apparato migliorato per la produzione di clinker a partire da farina cruda e relativo processo |
-
2014
- 2014-02-25 AT ATA129/2014A patent/AT515421B1/de not_active IP Right Cessation
-
2015
- 2015-02-17 MA MA39279A patent/MA39279A1/fr unknown
- 2015-02-17 EP EP15711815.9A patent/EP3111150A1/de not_active Withdrawn
- 2015-02-17 CA CA2940571A patent/CA2940571A1/en not_active Abandoned
- 2015-02-17 MX MX2016010941A patent/MX2016010941A/es unknown
- 2015-02-17 WO PCT/IB2015/000174 patent/WO2015128714A1/de not_active Ceased
- 2015-02-17 AP AP2016009399A patent/AP2016009399A0/en unknown
- 2015-02-17 US US15/121,313 patent/US20170016669A1/en not_active Abandoned
- 2015-02-17 CN CN201580009265.0A patent/CN106029598A/zh active Pending
-
2016
- 2016-08-23 PH PH12016501679A patent/PH12016501679A1/en unknown
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2015128714A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| MA39279A1 (fr) | 2017-03-31 |
| PH12016501679A1 (en) | 2016-10-24 |
| WO2015128714A1 (de) | 2015-09-03 |
| MX2016010941A (es) | 2016-11-14 |
| US20170016669A1 (en) | 2017-01-19 |
| CN106029598A (zh) | 2016-10-12 |
| CA2940571A1 (en) | 2015-09-03 |
| AP2016009399A0 (en) | 2016-08-31 |
| AT515421A4 (de) | 2015-09-15 |
| AT515421B1 (de) | 2015-09-15 |
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