EP1743131B1 - Bulk-material cooler for cooling hot material to be cooled - Google Patents
Bulk-material cooler for cooling hot material to be cooled Download PDFInfo
- Publication number
- EP1743131B1 EP1743131B1 EP05739685A EP05739685A EP1743131B1 EP 1743131 B1 EP1743131 B1 EP 1743131B1 EP 05739685 A EP05739685 A EP 05739685A EP 05739685 A EP05739685 A EP 05739685A EP 1743131 B1 EP1743131 B1 EP 1743131B1
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- EP
- European Patent Office
- Prior art keywords
- modules
- cooling
- grate
- cooling grate
- bulk material
- 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.)
- Not-in-force
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Classifications
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- 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
- F27D15/0213—Cooling with means to convey the charge comprising a cooling grate
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- 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 peculiar to rotary-drum furnaces
- F27B7/38—Arrangements of cooling devices
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- 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
- F27D15/0213—Cooling with means to convey the charge comprising a cooling grate
- F27D15/022—Cooling with means to convey the charge comprising a cooling grate grate plates
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- 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
- F27D19/00—Arrangements of controlling devices
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- 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
- F27D15/0213—Cooling with means to convey the charge comprising a cooling grate
- F27D15/022—Cooling with means to convey the charge comprising a cooling grate grate plates
- F27D2015/0226—Support, fixation of the grate
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- 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
- F27D15/0213—Cooling with means to convey the charge comprising a cooling grate
- F27D15/022—Cooling with means to convey the charge comprising a cooling grate grate plates
- F27D2015/0233—Cooling with means to convey the charge comprising a cooling grate grate plates with gas, e.g. air, supply to the grate
Definitions
- the invention relates to a bulk material cooler with a cooled goods to be cooled such.
- Grate coolers are used in the stone and earth industry to the previously burned in an oven good such. As cement clinker or other mineral goods immediately afterwards cool down strongly on the cooling grate.
- the grate cooler is particularly widespread, in which the grate system consists of a plurality of alternately stationary and movable grate plate carriers, on each of which several grate plates provided with cooling air openings and substantially flowed from bottom to top of the grate air are mounted , Stationary grate plate rows alternate with reciprocating grate plate rows as seen in the conveying direction, which are fastened via their corresponding reciprocating grate plate carriers to one or more longitudinally movably mounted driven push frames. Due to the common oscillating movement of all moving rows of grate plates, the hot material to be cooled is transported in batches and thereby cooled.
- the delivery rate is decisively influenced by the difference between the cement clinker volume moved in each advance stroke in the conveying direction and the clinker volume which is undesirably moved counter to the conveying direction during the return stroke.
- the crossbar-shaped pushers are mounted on the top of vertical longitudinally oriented in the radiator longitudinal direction drive plates extending through corresponding longitudinal slots of the cooling grate and are driven from below the grate, where it is relatively expensive to load the refrigerated grate loaded with refrigerated goods to the To seal passage points of the drive plates against rust diarrhea while keeping the material wear occurring within limits.
- a high bulk material bed should form, which fills the entire cooling tunnel cross-section, so that the cooling gas flows through the stepwise moving bulk material in countercurrent.
- the bottom elements themselves remain uncooled by the cooling gas, so that the known cooling tunnel would not be suitable to cool from the discharge end of a rotary kiln falling red hot cement clinker.
- the invention has the object of providing a working according to the "walking floor” conveying principle bulk material cooler especially for hot cement clinker so that its cooling grid to achieve long lengths and widths of the cooler from a variety of easy and variably mountable ventilated cooling grate modules assembled is, in their movement between a Vorhubposition and rubhubposition even side and / or height offset of the guide elements is kinematically compensated.
- the cooling grid over the length and across the width of the radiator is composed of a plurality of modules, wherein the arranged indeguttransport therapies one behind the other in a row modules are hinged together.
- the adjacent cooling grid module longitudinal rows are controlled independently of each other between a Vorhubposition inchenguttransportides and a rubhubposition so movable that the goods to be cooled is promoted stepwise on the walking floor conveying principle on the cooling grid.
- the cooling grate assembled in this way is permeable to the cooling air, which flows through the cooling grate and the bulk material bed mounted thereon in cross-flow from bottom to top, ie the airfoils of the cooling grate modules simultaneously serve as bulk material transport and cooling grate ventilation elements.
- the modules are moved together in their Vorhubterrorism forward, but not moved together in their return stroke, but in at least two groups in at least two successive steps in succession, in which each only a part of the modules, eg. B. in each case only every second row of cooling grid modules seen is moved back across the radiator width.
- the modules of a row under the resting bulk bed are controlled so retracted that the bed of bulk material remains at rest and does not participate in the return stroke movement.
- each module carriage is supported on its own support wheels on corresponding guides.
- the coupling between the support modules and the connection modules mounted on both sides takes place via a joint, in particular a ball joint or universal joint.
- the saddle connection modules can compensate for side and / or height offset of the support modules due to their articulated coupling. Apart from the saving of support rollers and axles in the connection modules while the alignment accuracy is reduced during assembly of the bulk material cooler according to the invention, resulting in a comparatively low total assembly costs. Finally, the amount of resultant unwanted lateral guide forces of the moving support modules is kept small when inventively constructed bulk material cooler, which by a large center distance can be further reduced in the support rollers of the support modules.
- both the support modules together with the longitudinally movable base frame and the connecting modules each consist of a unit preassembled in the workshop, these units simply being in the cooling grid or cooling grid on site the installation of the grate cooler are installed.
- the support rollers, on which the base of the support modules is supported, are guided on rails.
- the support rollers of the support modules may also be so-called combination rollers, which are radially and axially supported and guided in guide rails with U-profile, d. H. equipped with a roller bearing axial guidance.
- the support modules can also be supported on linear roller bearings or roller conveyors as well as plain bearings or pendulum arms.
- the coupling joints of the support modules for the saddle connection modules seen inambaguttransport exercises are advantageously arranged in the region between the front and rear support rollers of the support modules.
- the support modules can not be tipped by the load of the coupled saddle connection modules, because the support forces from the connection modules always act between the support rollers of the support modules.
- the drive of the support modules for their forward and backward movement is preferably carried out so that the moving module longitudinal rows and their joints are claimed only on train as possible.
- the bulk material cooler according to the invention is also advantageously used when pressure is applied to the module longitudinal row.
- Another advantage of the invention lies in the symmetrical design of the modules. This ensures the similarity of the kinematics during forward and return stroke.
- the lateral executives are proportionally equal to the tensile and / or compressive forces.
- the statements on the lateral executives can also be transferred to the vertical support forces.
- the relieving of the modules to the lifting of a bearing by an uneven vertical module load that would be possible in a module type on the type of railway cars is excluded in a combination of support modules with saddle connection modules.
- a further influence on the wheel loads is the introduction of force of approximately horizontal feed force in the driven modules.
- each cooling grid module longitudinal row of which in FIG. 1 a longitudinal row can be seen, is alternately composed of support rollers 11, 12 supported on both sides support modules 13 and 14 of compound modules, which latter are saddled without their own support rollers on the support modules 13.
- the tops of all modules 13, 14 each consist of spaced apart mirror image opposite, but staggered V-profiles arranged offset to one another, whose V-legs intermesh with space, which latter forms a labyrinth for the refrigerated goods and for the cooling air 18 ,
- Rost Rost resumes it is possible to arrange at a distance below the grate surface of all modules 13, 14 a closed the rust diarrhea preventing soil.
- the cooling grate modules are not chamber-ventilated, but series-ventilated.
- the support rollers 11, 12 of the support modules 13 are supported on guide rails 19, 20 of the substructure of the grate cooler. But it can also be in kinematic reversal, the undersides of the support modules 13 roll on stationary support rollers.
- the coupling between the support modules 13 and the connection modules 14 mounted on both sides takes place in each case via a joint 21, 22, preferably a ball joint or universal joint.
- the required alignment accuracy in the guide rails 19, 20 and support rollers 11, 12 is not particularly high, because at a lateral and / or vertical offset of these components, the cooling grid module row of FIG. 1 in the FIG. 2 can take schematically represented configuration or kinematics.
- FIG. 3 enlarged cut out along the line AA the FIG. 1 shows the base of a support module 13, which are supported on the guide rails 20 and 19 via four support rollers, of which the two support rollers 12 can be seen.
- the support modules 13 On their upper side, the support modules 13 on both sides of a universal joint 22 and 21, with which the connection module 14 is saddled on the support module.
- the lateral guides 23 prevent lateral guides 23 in the joint plane a transverse inclination of the saddle mounted connection modules 14. That is, the lateral guides 23 are designed so that only the degree of freedom that would allow lateral tilting of the modules is turned off. This can be achieved for example by a spherical shape of the guides and a surface with a low coefficient of friction.
- These guides also serve to support the weight of the semi-mounted modules.
- Both the support modules 13 together with the longitudinally displaceable subframe supporting them as well as the connection modules 14 can each consist of a unit preassembled in the workshop, these units being installed in the cooling grate or as cooling grate at the place of installation of the grate cooler with comparatively low assembly costs ,
- support rollers 12 can also be used combination wheels, in comparison to FIG. 3 90 ° tilted guide rails with U-profile radially and axially supported and guided, ie the combination rollers have their own rolling elements in the axis area for axial guidance of the rollers.
- FIG. 7 is such a combination roller drawn out enlarged, run the support roller 12 for radial support and the rolling elements 12a at the axis end for axial support in the U-profile 20a.
- the coupling joints 21, 22 of the support modules 13 for the saddle mounted connection modules 14 are arranged indiumguttransportses respectively in the area between the front and rear support rollers 11 and 12 of the support modules 13, so that the supporting forces from the connection modules 14 always between the support rollers of the support modules 13 act.
- the forward and backward movement of the respective adjacent cooling grid module rows can be carried out from below the cooling grate by working cylinder, which expediently engage one or more of the support modules 13. Viewed across the width of the grate cooler can be assembled per cooling grate module more adjacent elongated cooling grate tracks to the preassembled unit whose individual cooling grate tracks are independently movable between the Vorhubposition and therasthubposition.
- FIG. 1 It can also be seen that the hot cement clinker 17 to be cooled, as it falls from the end of a rotary kiln, is first transferred via a static, non-moving roughing 24 to a reciprocating end piece 25, which is articulated on the front side of the first support module 13 is saddled up. To the last support module 13, an end module 26 may be coupled, via which the cooled cement clinker is fed to a roll crusher 27.
- the cooling grid module row has an extended end module 26 saddle-mounted on one side.
- the first end module 25a is not saddled up, but like a support module supported by support rollers on a guide.
- FIG. 6 In the embodiment of FIG. 6 are the support modules 13a, 13b etc. formed comparatively short without its own cooling grid. The joints 21, 22 of these support elements are relatively close together.
- FIGS. 1 . 4, 5 and 6 Variants shown can be combined with each other.
- the tops of all modules carrying the goods to be refrigerated 17 are designed, for example, as trough-shaped so that they retain the lowermost layer of bulk material for avoiding relative movement of this lowermost material layer and the respective module top, which contributes to the autogenous wear protection of all the cooling grate modules 13, 14.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
- Photoreceptors In Electrophotography (AREA)
- Pyrane Compounds (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Silicon Compounds (AREA)
Abstract
Description
Die Erfindung betrifft einen Schüttgutkühler mit einem das abzukühlende Kühlgut wie z. B. heißen Zementklinker tragenden Kühlrost, der das von einem Kühlgas durchströmte Kühlgut vom Kühlguteintragsende zum Kühlgutaustragsende transportiert.The invention relates to a bulk material cooler with a cooled goods to be cooled such. B. hot cement clinker carrying cooling grid, which transports the flowed through by a cooling gas refrigerated goods from Kühlguteintragsende for Kühlgutaustragsende.
Rostkühler werden in der Steine- und Erdenindustrie eingesetzt, um das zuvor in einem Ofen gebrannte Gut wie z. B. Zementklinker oder andere mineralische Güter unmittelbar anschließend auf dem Kühlrost stark abzukühlen. Zwecks Transports des heißen Kühlgutes über die Kühlstrecke sind besonders die Schubrostkühler weit verbreitet, bei denen das Rostsystem aus einer Vielzahl von abwechselnd ortsfesten und beweglichen Rostplattenträgern besteht, auf denen jeweils mehrere mit Kühlluftöffnungen versehene und im wesentlichen von unten nach oben von Kühlluft durchströmte Rostplatten befestigt sind. Dabei wechseln sich in Förderrichtung gesehen ortsfeste Rostplattenreihen mit hin- und herbeweglichen Rostplattenreihen ab, die über ihre entsprechend hin- und herbeweglichen Rostplattenträger auf einem oder mehreren längsbeweglich gelagerten angetriebenen Schubrahmen befestigt sind. Durch die gemeinsam oszillierende Bewegung aller bewegten Rostplattenreihen wird das zu kühlende heiße Gut schubweise transportiert und dabei gekühlt.Grate coolers are used in the stone and earth industry to the previously burned in an oven good such. As cement clinker or other mineral goods immediately afterwards cool down strongly on the cooling grate. For the purpose of transporting the hot goods to be cooled via the cooling section, the grate cooler is particularly widespread, in which the grate system consists of a plurality of alternately stationary and movable grate plate carriers, on each of which several grate plates provided with cooling air openings and substantially flowed from bottom to top of the grate air are mounted , Stationary grate plate rows alternate with reciprocating grate plate rows as seen in the conveying direction, which are fastened via their corresponding reciprocating grate plate carriers to one or more longitudinally movably mounted driven push frames. Due to the common oscillating movement of all moving rows of grate plates, the hot material to be cooled is transported in batches and thereby cooled.
Als Alternative zum o. g. konventionellen Schubrostkühler ist aus der
Bei diesen bekannten Rostkühlertypen wird die Förderleistung entscheidend durch die Differenz zwischen dem bei jedem Vorhub in Förderrichtung bewegten Zementklinkervolumen und dem bei der Rückhubbewegung unerwünscht entgegen der Förderrichtung bewegten Klinkervolumen beeinflusst. Außerdem sind bei diesen bekannten Rostkühlertypen die querbalkenförmigen Schubelemente auf der Oberseite von vertikalen in Kühlerlängsrichtung ausgerichteten Antriebsplatten befestigt, die sich durch entsprechende Längsschlitze des Kühlrostes hindurch erstrecken und von unterhalb des Kühlrostes angetrieben werden, wobei es verhältnismäßig aufwendig ist, den mit Kühlgut beladenen Kühlrost an den Durchtrittsstellen der Antriebsplatten gegen Rostdurchfall abzudichten und dabei den auftretenden Materialverschleiß in Grenzen zu halten. Die in der heißen Zementklinkerschüttung bewegten Schubelemente sind einer hohen thermisch-mechanischen Verschleißbeanspruchung ausgesetzt, wodurch die Standzeit des Rostkühlers verkürzt wird. Schließlich wird das heiße Schüttgutbett infolge der im Gutbett bewegten Schubelemente durch diese durchmischt, was sich aber ungünstig auf den thermischen Wirkungsgrad solcher Rostkühlertypen auswirkt.In these known types of grate coolers, the delivery rate is decisively influenced by the difference between the cement clinker volume moved in each advance stroke in the conveying direction and the clinker volume which is undesirably moved counter to the conveying direction during the return stroke. In addition, in these known types of grate coolers, the crossbar-shaped pushers are mounted on the top of vertical longitudinally oriented in the radiator longitudinal direction drive plates extending through corresponding longitudinal slots of the cooling grate and are driven from below the grate, where it is relatively expensive to load the refrigerated grate loaded with refrigerated goods to the To seal passage points of the drive plates against rust diarrhea while keeping the material wear occurring within limits. The moving in the hot cement clinker bed shear elements are exposed to a high thermal-mechanical wear stress, whereby the service life of the grate cooler is shortened. Finally, the hot bulk material bed is moved as a result of the pusher elements moving in the good bed mixed by these, but which adversely affects the thermal efficiency of such grate cooler types.
Außerdem ist aus der
Der Erfindung liegt die Aufgabe zugrunde, einen nach dem "Walking-Floor"-Förderprinzip arbeitenden Schüttgutkühler insbesondere für heißen Zementklinker so auszubilden, dass sein Kühlrost zur Erreichung großer Längen und Breiten des Kühlers aus einer Vielzahl von einfach und variabel montierbaren belüfteten Kühlrost-Modulen zusammensetzbar ist, bei deren Bewegung zwischen einer Vorhubposition und Rückhubposition sogar Seiten- und/oder Höhenversatz der Führungselemente kinematisch ausgleichbar ist.The invention has the object of providing a working according to the "walking floor" conveying principle bulk material cooler especially for hot cement clinker so that its cooling grid to achieve long lengths and widths of the cooler from a variety of easy and variably mountable ventilated cooling grate modules assembled is, in their movement between a Vorhubposition and Rückhubposition even side and / or height offset of the guide elements is kinematically compensated.
Diese Aufgabe wird gemäß der Erfindung mit einem Schüttgutkühler mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved according to the invention with a bulk material cooler with the features of claim 1. Advantageous developments of the invention are specified in the subclaims.
Beim erfindungsgemäßen Schüttgutkühler ist der Kühlrost über die Länge und über die Breite des Kühlers gesehen aus einer Vielzahl von Modulen zusammengesetzt, wobei die in Kühlguttransportrichtung hintereinander in jeweils einer Reihe angeordneten Module miteinander gelenkig gekuppelt sind. Dabei sind die nebeneinander liegenden Kühlrost-Modullängsreihen unabhängig voneinander zwischen einer Vorhubposition in Kühlguttransportrichtung und einer Rückhubposition gesteuert so bewegbar, dass das Kühlgut schrittweise nach dem Walking Floor-Förderprinzip über den Kühlrost gefördert wird. Der auf diese Weise zusammengesetzte Kühlrost ist für die Kühlluft durchlässig, die etwa im Querstrom von unten nach oben den Kühlrost sowie das darauf gelagerte Schüttgutbett durchströmt, d. h. die Tragflächen der Kühlrost-Module dienen gleichzeitig als Schüttguttransport- und als Kühlrostbelüftungs-Elemente. Oberhalb des Kühlrostes im Schüttgutbett bewegte Schubelemente, die einem hohen Verschleiß ausgesetzt wären und die das Schüttgutbett durchmischen würden, sind nicht vorhanden. Als Beispiel wird angegeben, dass die Module bei ihrer Vorhubbewegung gemeinsam nach vorne bewegt werden, aber bei ihrer Rückhubbewegung nicht gemeinsam, sondern in wenigstens zwei Gruppen in wenigstens zwei zeitlich aufeinanderfolgenden Schritten nacheinander zurückbewegt werden, bei welchen jeweils nur ein Teil der Module, z. B. jeweils nur jede zweite Kühlrost-Modulreihe gesehen über die Kühlerbreite zurückbewegt wird. Bei ihrer Rückhubbewegung werden die Module einer Reihe unter dem ruhenden Schüttgutbett gesteuert so zurückgezogen, dass das Schüttgutbett in Ruhe verharrt und die Rückhubbewegung nicht mitmacht.When the bulk material cooler according to the invention, the cooling grid over the length and across the width of the radiator is composed of a plurality of modules, wherein the arranged in Kühlguttransportrichtung one behind the other in a row modules are hinged together. The adjacent cooling grid module longitudinal rows are controlled independently of each other between a Vorhubposition in Kühlguttransportrichtung and a Rückhubposition so movable that the goods to be cooled is promoted stepwise on the walking floor conveying principle on the cooling grid. The cooling grate assembled in this way is permeable to the cooling air, which flows through the cooling grate and the bulk material bed mounted thereon in cross-flow from bottom to top, ie the airfoils of the cooling grate modules simultaneously serve as bulk material transport and cooling grate ventilation elements. Above the cooling grate moving in the bulk bed moving elements that would be exposed to high wear and would mix the bed of bulk material are not present. As an example, it is stated that the modules are moved together in their Vorhubbewegung forward, but not moved together in their return stroke, but in at least two groups in at least two successive steps in succession, in which each only a part of the modules, eg. B. in each case only every second row of cooling grid modules seen is moved back across the radiator width. During their return movement, the modules of a row under the resting bulk bed are controlled so retracted that the bed of bulk material remains at rest and does not participate in the return stroke movement.
Die Module jeweils einer Kühlrost-Modullängsreihe können ähnlich wie Eisenbahn-Wagen allerdings über ein Gelenk miteinander gekuppelt sein, wobei dann jeder Modulwagen auf eigenen Stützrädern an entsprechenden Führungen abgestützt ist.The modules of a cooling grid module longitudinal row, however, similar to railroad cars, however, be coupled together via a hinge, in which case each module carriage is supported on its own support wheels on corresponding guides.
Nach einem besonderen Merkmal der Erfindung ist jede Kühlrost-Modullängsreihe mit den in Kühlguttransportrichtung hintereinander angeordneten gekuppelten Modulen abwechselnd aus an Stützrollen abgestützten Tragmodulen und aus Verbindungsmodulen zusammengesetzt, welch letztere ohne eigene Stützrollen auf den Tragmodulen aufgesattelt sind. Das heißt, bei dieser Lösung sind bei jeder Kühlrost-Modullängsreihe zwei Modultypen miteinander kombiniert, wobei alle Modultypen gemeinsam haben, dass sie an ihrer Oberfläche einen luftdurchlässigen Rost aufweisen, der das heiße abzukühlende Kühlgut trägt.According to a particular feature of the invention, each cooling grid module longitudinal row with the Kühlguttransportrichtung successively arranged coupled modules alternately composed of support rollers supported on support modules and compound modules, which latter are saddled without their own support rollers on the support modules. That is, in this solution, two module types are combined with each cooling grid module longitudinal row, all module types have in common that they have on their surface an air-permeable grate, which carries the hot refrigerated goods to be cooled.
Die Kuppelung zwischen den Tragmodulen und den beidseitig aufgesattelten Verbindungsmodulen erfolgt jeweils über ein Gelenk, insbesondere Kugelgelenk oder Kardangelenk. Die aufgesattelten Verbindungsmodule können infolge ihrer gelenkigen Ankopplung Seiten- und/oder Höhenversatz der Tragmodule ausgleichen. Abgesehen von der Einsparung von Stützrollen und Achsen bei den Verbindungsmodulen wird dabei auch die Ausrichtgenauigkeit bei der Montage des erfindungsgemäßen Schüttgutkühlers reduziert, wodurch sich insgesamt ein vergleichsweise geringer Montageaufwand ergibt. Schließlich wird beim erfindungsgemäß aufgebauten Schüttgutkühler der Betrag der resultierenden unerwünschten seitlichen Führungskräfte der bewegten Tragmodule klein gehalten, der durch einen großen Achsabstand bei den Stützrollen der Tragmodule noch weiter reduziert werden kann.The coupling between the support modules and the connection modules mounted on both sides takes place via a joint, in particular a ball joint or universal joint. The saddle connection modules can compensate for side and / or height offset of the support modules due to their articulated coupling. Apart from the saving of support rollers and axles in the connection modules while the alignment accuracy is reduced during assembly of the bulk material cooler according to the invention, resulting in a comparatively low total assembly costs. Finally, the amount of resultant unwanted lateral guide forces of the moving support modules is kept small when inventively constructed bulk material cooler, which by a large center distance can be further reduced in the support rollers of the support modules.
Die einfache Montage des erfindungsgemäßen Schüttgutkühlers ergibt sich auch dadurch, dass sowohl die Tragmodule zusammen jeweils mit dem sie abstützenden längsverfahrbaren Untergestell als auch die Verbindungsmodule jeweils aus einer in der Werkstatt vormontierten Einheit bestehen, wobei diese Einheiten einfach in den Kühlrost bzw. als Kühlrost am Ort der Installation des Rostkühlers eingebaut werden.The simple assembly of the bulk material cooler according to the invention also results from the fact that both the support modules together with the longitudinally movable base frame and the connecting modules each consist of a unit preassembled in the workshop, these units simply being in the cooling grid or cooling grid on site the installation of the grate cooler are installed.
Die Stützrollen, an denen das Untergestell der Tragmodule abgestützt ist, sind an Schienen geführt. Die Stützrollen der Tragmodule können auch sogenannte Kombirollen sein, die in Führungsschienen mit U-Profil radial und axial abgestützt und geführt sind, d. h. mit einer wälzgelagerten Axialführung ausgestattet sind. Die Tragmodule können statt an Stützrollen oder Kombirollen auch an Linearwälzlagern oder Rollenbahnen sowie auch an Gleitlagern oder Pendelarmen abgestützt sein.The support rollers, on which the base of the support modules is supported, are guided on rails. The support rollers of the support modules may also be so-called combination rollers, which are radially and axially supported and guided in guide rails with U-profile, d. H. equipped with a roller bearing axial guidance. Instead of support rollers or combination rollers, the support modules can also be supported on linear roller bearings or roller conveyors as well as plain bearings or pendulum arms.
Die Koppelungs-Gelenke der Tragmodule für die aufgesattelten Verbindungsmodule gesehen in Kühlguttransportrichtung sind mit Vorteil im Bereich zwischen den vorderen und hinteren Stützrollen der Tragmodule angeordnet. Dadurch können die Tragmodule durch die Last der angekoppelten aufgesattelten Verbindungsmodule nicht zum Kippen gebracht werden, weil die Stützkräfte aus den Verbindungsmodulen immer zwischen den Stützrollen der Tragmodule wirken.The coupling joints of the support modules for the saddle connection modules seen in Kühlguttransportrichtung are advantageously arranged in the region between the front and rear support rollers of the support modules. As a result, the support modules can not be tipped by the load of the coupled saddle connection modules, because the support forces from the connection modules always act between the support rollers of the support modules.
Der Antrieb der Tragmodule zu deren Vorwärts- und Rückwärtsbewegung erfolgt vorzugsweise so, dass die bewegten Modul-Längsreihen und deren Gelenkverbindungen möglichst nur auf Zug beansprucht sind.The drive of the support modules for their forward and backward movement is preferably carried out so that the moving module longitudinal rows and their joints are claimed only on train as possible.
Aufgrund seiner kleinen seitlichen Führungskräfte kommt der erfindungsgemäße Schüttgutkühler aber auch bei einer Druckbeaufschlagung der Modul-Längsreihe vorteilhaft zum Einsatz. Ein weiterer Vorteil der Erfindung liegt im symmetrischen Aufbau der Module. Hierdurch ist die Gleichartigkeit der Kinematik bei Vor- und Rückhub gewährleistet. Die seitlichen Führungskräfte sind proportional gleich den Zug-, und/oder Druckkräften. Die Aussagen zu den seitlichen Führungskräften lassen sich auch auf die senkrechten Abstützkräfte übertragen. Das Entlasten der Module bis zum Abheben einer Lagerstelle durch eine ungleichmäßige senkrechte Modul-Belastung, die bei einer Modul-Bauart nach Art von Eisenbahnwaggons möglich wäre, ist bei einer Kombination von Tragmodulen mit aufgesattelten Verbindungsmodulen ausgeschlossen. Einen weiteren Einfluss auf die Radlasten stellt die Krafteinleitung der etwa waagerechten Vorschubkraft in die angetriebenen Module dar. Zum Schutz der Antriebselemente vor Verschmutzung und Verschleiß ist es sinnvoll, die Antriebselemente unterhalb der Modul-Förderbahnen zu installieren. Somit liegt der Kraftangriffspunkt deutlich unterhalb der Reibebene zum aufgegebenen Kühlgut. Dieser Abstand erzeugt ein Moment, das zur ungleichmäßigen Belastung der Achsen des Modulwagens bzw. Tragmoduls führt. Durch den langen Achsabstand wird dieser Effekt reduziert. Eine weitere Reduzierung dieses Effektes ist durch eine Neigung der Kraftangriffsrichtung möglich. Durch diese Neigung der Kraftangriffsrichtung entsteht eine Kraftkomponente in senkrechter Richtung, die einen teilweisen bis vollständigen Ausgleich der Achslastreduzierung erreicht.Due to its small lateral executives, the bulk material cooler according to the invention is also advantageously used when pressure is applied to the module longitudinal row. Another advantage of the invention lies in the symmetrical design of the modules. This ensures the similarity of the kinematics during forward and return stroke. The lateral executives are proportionally equal to the tensile and / or compressive forces. The statements on the lateral executives can also be transferred to the vertical support forces. The relieving of the modules to the lifting of a bearing by an uneven vertical module load that would be possible in a module type on the type of railway cars is excluded in a combination of support modules with saddle connection modules. A further influence on the wheel loads is the introduction of force of approximately horizontal feed force in the driven modules. To protect the drive elements from dirt and wear, it makes sense to install the drive elements below the module conveyor tracks. Thus, the force application point is well below the friction plane to the abandoned refrigerated goods. This distance creates a moment that leads to uneven loading of the axes of the module carriage or support module. The long center distance reduces this effect. A further reduction of this effect is possible by a tendency of the force application direction. This inclination of the force application direction results in a force component in the vertical direction which achieves a partial to complete compensation of the axle load reduction.
Die Erfindung und deren weitere Merkmale und Vorteile werden anhand der in den Figuren schematisch dargestellten Ausführungsbeispiele näher erläutert.The invention and its further features and advantages will be explained in more detail with reference to the embodiments schematically illustrated in the figures.
Es zeigt:
- Fig. 1:
- schematisch die Seitenansicht eines bevorzugten Ausführungsbeispieles des erfindungsgemäßen Schüttgutkühlers zum Abkühlen von heißem Zementklinker,
- Fig. 2:
- in Draufsicht und/oder Seitenansicht die schematische Darstellung der Kinematik des Schüttgutkühlers der
Figur 1 bei Seiten- und/oder Höhenversatz der KühlrostModulreihe, - Fig. 3:
- schematisch vergrößert einen Schnitt längs der Linie A-A der
Figur 1 an einer Gelenk-Stelle des aus Modulen zusammengesetzten Kühlrostes, - Fig. 4 und Fig. 5:
- als Varianten zur
Figur 1 einen Schüttgutkühler mit besonders ausgebildeten Endmodulen am Anfang und Ende des Rostkühlers, - Fig. 6:
- als weitere Variante einen Schüttgutkühler, bei dem die die Verbindungsmodule tragenden Tragmodule besonders kurz und ohne eigenen Kühlrost ausgebildet sind.
- Fig. 7:
- vergrößert herausgezeichnet eine Kombirolle zur Abstützung und Führung der Tragmodule des Kühlrostes.
- Fig. 1:
- 1 is a schematic side view of a preferred embodiment of the bulk material cooler according to the invention for cooling hot cement clinker;
- Fig. 2:
- in plan view and / or side view, the schematic representation of the kinematics of the bulk material cooler of
FIG. 1 with side and / or height offset of the cooling grate module series, - 3:
- schematically enlarges a section along the line AA
FIG. 1 at a hinge point of the cooling grid composed of modules, - 4 and 5:
- as variants to
FIG. 1 a bulk material cooler with specially designed end modules at the beginning and end of the grate cooler, - Fig. 6:
- as a further variant, a bulk material cooler in which the support modules carrying the connection modules are designed to be particularly short and without their own cooling grate.
- Fig. 7:
- enlarged outlined a combination roller for supporting and guiding the support modules of the cooling grate.
Erläutert zunächst am Ausführungsbeispiel der
Die sich über die beträchtliche Länge des Schüttgutkühlers erstreckenden Kühlrost-Modulreihen sind unabhängig voneinander zwischen einer Vorhubposition 15 in Kühlguttransportrichtung und einer Rückhubposition 16 gesteuert so bewegbar, dass das Kühlgut 17, z. B. der heiße Zementklinker schrittweise nach dem Walking Floor-Förderprinzip über den Kühlrost vom Kühleranfang bis zum Kühlerende gefördert wird. Alle Module sind etwa trogförmig ausgebildet und sie weisen im Querschnitt gesehen eine das Kühlgut 17 tragende und für die Kühlluft 18 von unten nach oben durchlässige Oberseite auf, die mit irgendwelchen für die Kühlluft 18 durchlässigen Perforationen versehen sein kann. Mit besonderem Vorteil können die Oberseiten aller Module 13, 14 jeweils aus sich mit Abstand spiegelbildlich gegenüberliegenden, aber versetzt zueinander angeordneten satteldachförmigen V-Profilen bestehen, deren V-Schenkel mit Zwischenraum ineinandergreifen, welch letzterer ein Labyrinth für das Kühlgut sowie für die Kühlluft 18 bildet. Dadurch ist gewährleistet, dass der erfindungsgemäße Schüttgutkühler gegen Rostdurchfall gesichert ist. Zur noch sichereren Vermeidung der Gefahr eines Kühlgut-Rostdurchfalls besteht die Möglichkeit, mit Abstand unterhalb der Rostfläche aller Module 13, 14 einen geschlossenen den Rostdurchfall verhindernden Boden anzuordnen. In letzterem Fall werden die Kühlrostmodule nicht kammerbelüftet, sondern reihenbelüftet.The over the considerable length of the bulk material cooler extending cooling grid module rows are independently controlled between a
Die Stützrollen 11, 12 der Tragmodule 13 sind an Führungsschienen 19, 20 des Unterbaus des Rostkühlers abgestützt. Es können sich aber auch in kinematischer Umkehrung die Unterseiten der Tragmodule 13 an ortsfesten Stützrollen abwälzen. Die Kuppelung zwischen den Tragmodulen 13 und den beidseitig aufgesattelten Verbindungsmodulen 14 erfolgt jeweils über ein Gelenk 21, 22, vorzugsweise Kugelgelenk oder Kardangelenk. Bei der Montage des erfindungsgemäßen Schüttgutkühlers ist die erforderliche Ausrichtgenauigkeit bei den Führungsschienen 19, 20 und Stützrollen 11, 12 nicht besonders hoch, weil bei einem Seiten- und/oder Höhenversatz dieser Bauelemente die Kühlrost-Modulreihe der
Der in
Sowohl die Tragmodule 13 zusammen jeweils mit dem sie abstützenden längsverfahrbaren Untergestell als auch die Verbindungsmodule 14 können jeweils aus einer in der Werkstatt vormontierten Einheit bestehen, wobei diese Einheiten in den Kühlrost bzw. als Kühlrost am Ort der Installation des Rostkühlers mit vergleichsweise geringem Montageaufwand eingebaut werden.Both the
Anstelle der in
Die Koppelungs-Gelenke 21, 22 der Tragmodule 13 für die aufgesattelten Verbindungsmodule 14 sind gesehen in Kühlguttransportrichtung jeweils im Bereich zwischen den vorderen und hinteren Stützrollen 11 und 12 der Tragmodule 13 angeordnet, so dass die Stützkräfte aus den Verbindungsmodulen 14 immer zwischen den Stützrollen der Tragmodule 13 wirken.The coupling joints 21, 22 of the
Die Vor- und Rückbewegung der jeweiligen nebeneinander liegenden Kühlrost-Modulreihen kann von unterhalb des Kühlrostes durch Arbeitszylinder erfolgen, die zweckmäßigerweise an einem oder mehreren der Tragmodule 13 angreifen. Über die Breite des Rostkühlers gesehen können pro Kühlrost-Modul mehrere nebeneinander liegende längliche Kühlrostbahnen zur vormontierten Einheit zusammengebaut sein, deren einzelne Kühlrostbahnen unabhängig voneinander zwischen der Vorhubposition und der Rückhubposition bewegbar sind.The forward and backward movement of the respective adjacent cooling grid module rows can be carried out from below the cooling grate by working cylinder, which expediently engage one or more of the
In
Beim Ausführungsbeispiel der
Beim Ausführungsbeispiel der
Die in den
Die das Kühlgut 17 tragenden Oberseiten aller Module sind etwa trogförmig so ausgebildet, dass sie die unterste Schüttgutschicht zur Vermeidung einer Relativbewegung dieser untersten Gutschicht und der jeweiligen Moduloberseite festhalten, was zum autogenen Verschleißschutz aller Kühlrostmodule 13, 14 beiträgt.The tops of all modules carrying the goods to be refrigerated 17 are designed, for example, as trough-shaped so that they retain the lowermost layer of bulk material for avoiding relative movement of this lowermost material layer and the respective module top, which contributes to the autogenous wear protection of all the
Claims (9)
- Bulk material cooler having a cooling grate which carries the material to be cooled (17), such as hot cement clinker, and which conveys the material to be cooled from the material charging end to the material discharging end whilst a flow of cooling gas (18) flows through said material to be cooled, characterized by the following features:a) the cooling grate, viewed over the length and over the width of the cooler, is assembled from multiple modules (13, 14), the modules (13, 14) in each row arranged in series in the conveying direction (10) of the material to be cooled being coupled to one another;b) the coupling of the cooling grate modules (13, 14) in each longitudinal row of cooling grate modules is in each case achieved by way of an articulated joint (21, 22);c) at least a proportion of the cooling grate modules (13, 14) is supported by way of support rollers (11, 12) on guides (19, 20);d) the adjacent longitudinal rows of cooling grate modules are capable of controlled movement independently of one another between a forward stroke position (15) in the conveying direction of the material to be cooled and a return stroke position (16), so that the material to be cooled (17) is progressively conveyed over the cooling grate on the walking floor conveying principle.
- Bulk material cooler according to Claim 1, characterized in that each longitudinal row of cooling grate modules with the coupled modules arranged in series in the conveying direction of the material to be cooled is assembled from carrier modules (13) supported on support rollers (11, 12) alternating with connecting modules (14), the latter without support rollers of their own being hitched onto the carrier modules (13).
- Bulk material cooler according to Claim 1 or 2, characterized in that both the carrier modules (13), each together with the longitudinally traversable base frame supporting them, and also the connecting modules (14), each comprise a preassembled unit, these units being easily fitted into the cooling grate and being easily fitted as cooling grate at the place of installation of the grate cooler.
- Bulk material cooler according to Claims 2 or 3, characterized in that the support rollers (11, 12), on which the base frame of the carrier modules (13) is supported, are guided on rails (19, 20).
- Bulk material cooler according to Claim 4, characterized in that the support rollers are combination rollers (12, 12a), which are radially and axially supported and guided in guide rails having a U-profile (20a) (Fig. 7).
- Bulk material cooler according to Claims 1 or 2, characterized in that the articulated joints (21, 22) between the carrier modules (13) and the hitched connecting modules (14) are ball joints or universal joints.
- Bulk material cooler according to Claims 1, 2 or 6, characterized in that the coupling joints (21, 22) of the carrier modules (13) for the hitched connecting modules (14) are each arranged in the area between the front and rear support rollers (11, 12) of the carrier modules (13).
- Bulk material cooler according to any one of Claims 1 to 7, characterized in that, viewed over the width of the cooler, for each cooling grate module multiple adjacent elongate cooling grate tracks are assembled to form the preassembled unit, the individual cooling grate tracks of which are moveable independently of one another between the forward stroke position (15) and the return stroke position (16).
- Bulk material cooler according to Claims 1, 2 or 8, characterized in that the carrier modules (13) are driven to perform their forward and return stroke movements (15, 16) so that the moving longitudinal rows of modules and their articulated joint connections are only subjected to tensile stress.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL05739685T PL1743131T3 (en) | 2004-05-07 | 2005-05-03 | Bulk-material cooler for cooling hot material to be cooled |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004022754A DE102004022754A1 (en) | 2004-05-07 | 2004-05-07 | Bulk cooler for cooling hot chilled goods |
PCT/EP2005/004761 WO2005114080A1 (en) | 2004-05-07 | 2005-05-03 | Bulk-material cooler for cooling hot material to be cooled |
Publications (2)
Publication Number | Publication Date |
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EP1743131A1 EP1743131A1 (en) | 2007-01-17 |
EP1743131B1 true EP1743131B1 (en) | 2009-09-02 |
Family
ID=34966984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP05739685A Not-in-force EP1743131B1 (en) | 2004-05-07 | 2005-05-03 | Bulk-material cooler for cooling hot material to be cooled |
Country Status (14)
Country | Link |
---|---|
US (1) | US7708556B2 (en) |
EP (1) | EP1743131B1 (en) |
JP (1) | JP5009150B2 (en) |
CN (1) | CN1981174B (en) |
AT (1) | ATE441825T1 (en) |
BR (1) | BRPI0510605A (en) |
DE (2) | DE102004022754A1 (en) |
DK (1) | DK1743131T3 (en) |
ES (1) | ES2333135T3 (en) |
MX (1) | MXPA06012681A (en) |
NO (1) | NO20065623L (en) |
PL (1) | PL1743131T3 (en) |
RU (1) | RU2397419C2 (en) |
WO (1) | WO2005114080A1 (en) |
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DE202012005978U1 (en) | 2012-06-19 | 2012-07-11 | Khd Humboldt Wedag Gmbh | Push floor of a push floor radiator |
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2004
- 2004-05-07 DE DE102004022754A patent/DE102004022754A1/en not_active Withdrawn
-
2005
- 2005-05-03 WO PCT/EP2005/004761 patent/WO2005114080A1/en active Application Filing
- 2005-05-03 BR BRPI0510605-2A patent/BRPI0510605A/en not_active IP Right Cessation
- 2005-05-03 ES ES05739685T patent/ES2333135T3/en active Active
- 2005-05-03 JP JP2007511995A patent/JP5009150B2/en not_active Expired - Fee Related
- 2005-05-03 DE DE502005008050T patent/DE502005008050D1/en active Active
- 2005-05-03 US US11/579,809 patent/US7708556B2/en not_active Expired - Fee Related
- 2005-05-03 PL PL05739685T patent/PL1743131T3/en unknown
- 2005-05-03 RU RU2006143210/03A patent/RU2397419C2/en not_active IP Right Cessation
- 2005-05-03 DK DK05739685T patent/DK1743131T3/en active
- 2005-05-03 CN CN2005800146657A patent/CN1981174B/en not_active Expired - Fee Related
- 2005-05-03 EP EP05739685A patent/EP1743131B1/en not_active Not-in-force
- 2005-05-03 AT AT05739685T patent/ATE441825T1/en active
- 2005-05-03 MX MXPA06012681A patent/MXPA06012681A/en active IP Right Grant
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2006
- 2006-12-06 NO NO20065623A patent/NO20065623L/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE202012005978U1 (en) | 2012-06-19 | 2012-07-11 | Khd Humboldt Wedag Gmbh | Push floor of a push floor radiator |
Also Published As
Publication number | Publication date |
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DK1743131T3 (en) | 2010-01-04 |
NO20065623L (en) | 2006-12-06 |
BRPI0510605A (en) | 2007-10-30 |
DE502005008050D1 (en) | 2009-10-15 |
JP2007536494A (en) | 2007-12-13 |
JP5009150B2 (en) | 2012-08-22 |
EP1743131A1 (en) | 2007-01-17 |
ATE441825T1 (en) | 2009-09-15 |
CN1981174A (en) | 2007-06-13 |
PL1743131T3 (en) | 2010-02-26 |
RU2397419C2 (en) | 2010-08-20 |
CN1981174B (en) | 2010-06-23 |
DE102004022754A1 (en) | 2005-12-01 |
RU2006143210A (en) | 2008-06-20 |
US20070259298A1 (en) | 2007-11-08 |
US7708556B2 (en) | 2010-05-04 |
MXPA06012681A (en) | 2007-02-14 |
WO2005114080A1 (en) | 2005-12-01 |
ES2333135T3 (en) | 2010-02-17 |
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