EP0811818B1 - Rostplatte sowie Verfahren zur Herstellung einer Rostplatte - Google Patents
Rostplatte sowie Verfahren zur Herstellung einer Rostplatte Download PDFInfo
- Publication number
- EP0811818B1 EP0811818B1 EP97107556A EP97107556A EP0811818B1 EP 0811818 B1 EP0811818 B1 EP 0811818B1 EP 97107556 A EP97107556 A EP 97107556A EP 97107556 A EP97107556 A EP 97107556A EP 0811818 B1 EP0811818 B1 EP 0811818B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- grate
- material carrier
- gas ducts
- carrier plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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- 238000004519 manufacturing process Methods 0.000 title claims description 18
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- 238000001816 cooling Methods 0.000 description 12
- 239000000112 cooling gas Substances 0.000 description 8
- 239000004568 cement Substances 0.000 description 7
- 238000013461 design Methods 0.000 description 7
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Images
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
- F27D15/0206—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
- F27B21/02—Sintering grates or tables
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/496—Multiperforated metal article making
Definitions
- the invention relates to a grate plate for installation in a grate device for heat exchange between pourable goods and treatment gas, especially for Mounting on a grate plate support in a grate cooler, according to the preamble of claim 1, and a method for producing a grate plate, according to the preamble of claim 19.
- grate plates of the required type in various grate devices to be installed in which a pourable good, e.g. Cement materials, ore materials and the like, with the help from flowing through the top layer from bottom to top Treated gases in the manner required become.
- a pourable good e.g. Cement materials, ore materials and the like
- This can be, for example, a Preheating, pre-burning, burning and above all cooling act on the materials mentioned.
- German Patent application 195 37 904.7 is a grate plate of the kind proposed by their construction a particularly cheap and even one Flow through the material to be treated and thus an optimal one Heat exchange between product and treatment gas achieved shall be.
- the gas passage channels in the crop support plate each to be designed in the manner of a pipe and approximately in a zigzag fashion, whereby they move overall in the direction of material conveyance diagonally from the underside of the plate to the top of the plate should extend.
- EP-B-0 167 658 is also a box-shaped one Grate floor element with two lateral supporting webs known, which are vertical and in the longitudinal direction of the plate extend and on which the surface determining and between them fine, over the entire grate element width continuous, gas-slit-forming, strip-shaped bodies are attached in a ladder or tine shape.
- Each two such ladder or fork-shaped structures lateral support bars and lasts are complementary and put together in a form-fitting manner, that the ledge bodies running parallel to each other Overall, a flat load bearing surface with the one in between Form remaining gas passage slots.
- Each slat body essentially consists from a main section forming the grate floor surface and an approach attached to it, which in installed condition one adjacent slat body reaches under. Also are on the front Edges of the main section of each slat body two Spacer projections formed on the trailing edges of each previously inserted into the frame Create lamellar body, so that between two adjacent slat bodies a gas passage slot remains free. To secure the slat body in the frame, becomes a special on the front end of the frame trained lamellar body threaded, the has an end flange protruding downwards, which is welded to the front bulkhead or otherwise Way is firmly connected.
- DE-A-37 34 043 is a grate cooler for cooling hot bulk material revealed.
- box-shaped Grate plate support with flat top cover plates provided, each of which is also of a flat design Grate plate are covered on their front End is angled down.
- cover plate of the Grate plate carrier and in the flat arranged above Grate plates are slit-shaped gas openings provided while lying between these two flat plates as a connection between the above-mentioned gas passage openings Connection openings are formed. Because the gas passage openings in the two superimposed flat plates in the longitudinal direction of each other are to be avoided that solids due to a failure of the cooling gas supply the gas passage openings can fall down, with throttling devices in this opening system can be arranged.
- the invention is therefore based on the object Grate plate according to the preamble of the claim 1 and a method for producing a grate plate according to the preamble of claim 19 further improve that the Guttragplatte itself at extremely abrasive goods, e.g. Cement clinker or Like., a relatively long life (long service life) owns and thereby through a relatively cheap and characterized by inexpensive production.
- extremely abrasive goods e.g. Cement clinker or Like., a relatively long life (long service life) owns and thereby through a relatively cheap and characterized by inexpensive production.
- the support plate made of highly wear-resistant reworked i.e. subsequently made highly wear-resistant Rolled steel plate material made, and the Gas passage channels are - in the vertical longitudinal section viewed through the support plate - essentially straight and sloping in the conveying direction in this Guttragplatte incorporated.
- the gas passage channels essentially straight and oblique in Direction of conveyance incorporated into this support plate are.
- the latter can be done in a relatively simple manner but very precise and the respective requirements done appropriately, especially through a special high-energy cut process, such as it will be explained in more detail later.
- the training and Alignment of the gas passage channels ensures a good penetration of what is on the support plate Good of the gas to be supplied (e.g. cooling air with a cooling grate), with a certain support for that on the associated Grating device to be transported along well achieved can be.
- the Guttragplatte in this grate plate according to the invention As explained before - from relatively thin plate material can be produced, it is appropriate to ensure their stabilization so that none disturbing vibrations during the operation of the associated Grate device, e.g. grate cooler. For this reason it is initially provided that the Plate body within its outer frame structure a parallel frame side panels firmly together has a connecting support structure made of stiffening elements, on which the Guttragplatte in places between supported the gas passage channels and at least is partially attached.
- This scaffold connects thus parallel frame side parts, especially the Long side parts firmly and therefore sufficiently stable with each other, with the bottom of the support plate additionally on the stiffening elements of this support frame supported and in places between the Gas passage channels at least partially attached becomes. This also ensures at the same time that the treatment gas or cooling gas on its way from the underside of the plate to the top of the plate (into the Treating goods) not at all or not significantly impaired becomes.
- the stiffening elements of the scaffolding at least in part in the form of with parallel Distances to each other, in the transverse direction of the plate between the long sides of the outer Frame structure extending support ribs with a flat channel cross-section open at the top are, the one channel longitudinal edge of each support rib directed against the underside of the support plate and is connected to this underside of the plate during the other rib longitudinal edge with the formation of a gas passage gap with a parallel distance to the underside of the plate runs, and that the gas passage channels in the Guttragplatte itself slit-shaped and approximately parallel to extend the support ribs, being on the underside of the plate each over the channel cross-section of the one below Open out support ribs.
- the manufacture of the grate plate according to the invention it is in the sense of a relatively cheap and inexpensive Manufacture especially for the Guttragplatte as well as for one well distributed and unhindered passage of the treatment gases also important that the gas passage channels as economically and precisely as possible Guttragplatte can be incorporated. In advantageous This is done by the high-energy cut process mentioned above.
- a rolled steel plate material can be commercially available Composite steel plates are used, the top one Post-hardened or highly wear-resistant layer is formed by a hard build-up welding layer and a hardness of about 58 to 68 HRC (according to Rockwell) owns.
- This rolled steel plate material stands out with a particularly high level of stability.
- the gas passage channels in the Guttragplatte can expediently a plasma burning process, a laser burning process, a high pressure water jet abrasive cutting process or some other similar high energy Separation cutting methods are used.
- a plasma burning process e.g. post-hardened or provided with hard overlay welding layer
- a high pressure water jet abrasive cutting process or some other similar high energy Separation cutting methods are used.
- each Trap can by such - known - separation cutting processes be ensured that even after the fact highly wear-resistant (e.g. post-hardened or provided with hard overlay welding layer)
- Highly wear-resistant e.g. post-hardened or provided with hard overlay welding layer
- the grate plate according to the invention it is also considered particularly useful if inside the outer frame structure of the base plate body a support structure made of stiffening elements is on which the Guttragplatte in places supported and at least partially attached, the are located between gas passages.
- This The measure proves to be particularly advantageous in that than thereby the highly wear-resistant reworked Rolled steel plate material can be relatively thin.
- the support plate can thus - as already mentioned above indicated - optimal without obstructing the gas flow supported and made of relatively inexpensive, commercially available Rolled steel plate material can be made without that the risk of building up unwanted vibrations in the support plate or undesirable bending stresses can occur in it.
- Embodiments are assumed that the grate plate according to the invention for installation in a grate cooler, preferably moving grate cooler, for cooling extremely abrasive hot goods executed and determined is.
- the grate plate according to the invention with equally good success installed in other roughly similar grate devices can be in which pourable goods are a heat exchange with treatment gas, for example preheating or burning the respective goods should.
- the aforementioned installation is a rust plate in a grate cooler for extremely hard-wearing Goods, as is especially the case with cement clinker is. Since rust cooler of the type in question here, how e.g. Moving grate cooler or the like, are generally known, needs to build such a grate cooler here not to be discussed in more detail.
- the grate plate 1 contains a plate base body as main components 4 with an outer frame structure 5 as well one on the upper edge 5a of this frame structure 5-preferred through welds - fastened crop support plate 6, designed as a flat plate is.
- this support plate is a variety of essentially of the same size and of the same design Gas passage channels 7 formed, the continuous from the underside of the plate 6a to the top of the plate 6b of this support plate 6 are provided.
- the grate plate carrier 2 is designed as a hollow body and serves in addition to the arrangement and attachment of the grate plates 1 also the supply of cooling gas or of cooling air, as shown in Fig. 1 by dashed lines Arrows 8 is indicated, so that this cooling gas (Arrow 8) from below into the hollow box-like Grate plate 1 introduced and then through the gas passage channels 7 evenly distributed in that on the Enter the refrigerated goods located on the top of the product support plate 6 can. At the same time, there is also a good one Cool down the grate plate itself.
- the grate plate 1 on the grate plate support 2 provides a Clamping screw 9, which with its head part 9a in a Plate base 4 trained attachment approach 10 engages and with their opposite, outer end 9b through a longitudinal wall 2a of the grate plate carrier 2 2 reaches out and there with Is tightened with the help of a screw nut 11.
- Fig.1 can also be seen that the in the direction of good (Arrow 3) facing front part of the grate plate 1 is bounded below by a base plate 12, the one rear connecting edge 12a for positive Connection with the longitudinal edge 2b facing it has hollow grate plate support 2.
- this grate plate according to the invention 1 it is now important that the Guttragplatte 6th Made of highly wear-resistant reworked rolled steel plate material is manufactured, i.e. one from the start Rolled steel plate material already made from a special alloy subsequently becomes highly wear-resistant made, e.g. post-hardened or with a hard overlay weld layer Mistake.
- Such rolled steel plate material is commercially available but will so far only for special machine parts in general Mechanical engineering, but not for rust devices Treatment of abrasive goods used.
- Grate plate 1 also considered appropriate, that the plate body 4 within its outer Frame structure 5 a parallel frame side parts, i.e. at least its long side walls or long side parts 5b and 5c support frame firmly connected 13 made of stiffening elements, namely support ribs 14 and stiffening webs 15, on which the support plate 6 at locations between the gas passage channels 7 supported and at least partially attached, preferably welded.
- the support structure is in place 13 essentially from the total approximately honeycomb composite support ribs 14 and stiffening webs 15.
- the support ribs 14 - like also shows Fig.6 - with parallel distances to each other arranged, in the transverse direction of the plate, i.e. perpendicular to the direction of material conveyance (arrow 3 in Fig. 1) between the long side walls or long side parts 5b and 5c of the outer frame structure 5 extend and are firmly connected to them.
- these support ribs 14 expediently one flat channel cross section open at the top, whereby one channel longitudinal edge (14a) of each support rib 14 the underside of the plate 6a and the other longitudinal edge of the gutter (14b) is at a distance from the underside of the plate 6a.
- the gutter cross section mentioned everyone Support rib 14- as shown in Figs. 1, 3, 4 and 5 - approximately in the form of an isosceles angle is formed, the in the material conveying direction (Arrow 3) pointing shorter rib legs 14a firmly the lower side 6a is connected, the longer one Rib legs 14b including one - as in the figures shown - flat acute angle - in Material conveying direction (arrow 3) - against the underside of the plate 6a rises obliquely backwards and wherein both rib legs 14a and 14b over an arc curved apex section 14c directly into one another are temporarily connected to each other.
- the gas passage channels 7 generally from the plate underside 6a to the plate top 6b essentially straight and oblique to the direction of material conveyance (Arrow 3) ascending into the support plate 6, 6 'are incorporated.
- the gas passage channels 7 extend in the support plate 6, 6 'slit-shaped and approximately parallel to the Support ribs 14 (each perpendicular to the drawing planes 1, 3, 4 and 5)).
- the gas passage channels 7 open in these first exemplary embodiments on the underside of the plate 6a in each case - cf. in particular Fig.1 - above the channel cross-section, preferably in the middle area of this channel cross-section, the underlying support ribs 14, whereby these support ribs 14 are simultaneously a type of gas or Air control elements (as an extension or continuation of the Form gas passage channels 7).
- Cooling gas or cooling air With a view to a particularly effective and even loading of the goods to be cooled with Cooling gas or cooling air is considered advantageous if if - according to a first embodiment - crosswise to the material conveying direction (arrow 3) several essentially equally large, slot-shaped gas passage channels 7 each in a transverse row and several such transverse rows in the longitudinal direction of the slab (parallel to the material conveying direction, Arrow 3) with equal intervals in a row and - viewed in the direction of good conveyance (arrow 3) - at least in the front longitudinal section of the crop support plate 6 and 6 'are arranged, as in the supervision can be seen on the grate plate 1 according to FIG.
- the gas passage channels 7 in adjacent one another Cross rows are offset from one another or arranged on a gap.
- this channel shape allows a very effective one Passage of the cooling gas in the on the support plate 6 refrigerated goods and, on the other hand, enables that possibly through the gas passage channels 7 after finest particles in the bottom open cross-section of the support ribs 14 caught and blown back towards the top of the plate can be. There is also a good cooling effect on the grate plate itself.
- Grate plate 1 As already expressed several times above has been used in the production of the support plate 6 or 6 'made of a highly wear-resistant rolled steel plate material an important feature of this invention Grate plate 1 seen. Particularly inexpensive is it the Guttragplatte 6, 6 'from one commercially available, highly wear-resistant due to subsequent hardening made of rolled steel plate material, with at least one top layer in particular post-hardened or wear-resistant Hard build-up welding layer is formed and a hardness - according to Rockwell - from about 58 to 68 HRC.
- the support plate 6 at least two immediately one on top of the other, the same throughout Has layers 6.1 or 6.2 having layer thickness.
- the lower plate layer 6.1 can consist of one there are specially alloyed rolled steel plate materials, and on this lower plate layer 6.1 is the upper one Plate layer 6.2 as particularly highly wear-resistant Material layer by hard overlay welding - in a suitable Thickness and with the stated hardness - applied.
- Shape and course of the channel-shaped support ribs 14 can initially correspond to what already exists described above in particular with reference to FIGS. 3 and 4 has been.
- the channel-shaped support ribs 14 are now - over the length of each support rib 14 evenly distributed - several upright and in Longitudinal plate direction (i.e. in the direction of material conveyance Arrow 3) extending stiffening webs 15 firmly attached.
- stiffening webs 15 are not only in Transverse direction of plate provided evenly distributed, but they also go over the gutter cross section of the associated support rib 14 and connect each two mutually adjacent support ribs 14 firmly together, being from the gutter cross section to the bottom 6a of the support plate 6 or 6 'are sufficient.
- the scaffold 13- is special 6 shows - approximately honeycomb-shaped with rectangular honeycombs, the stiffening webs 15 the Guttragplatte 6 and 6 'at positions between each other in the transverse direction of the plate adjacent gas passage channels 7 support and at least partially, e.g. roughly grid-shaped, firmly connected to the underside of the plate 6a, are preferably welded.
- the plate body 4 is now useful with his Frame structure 5, the support structure 13 formed therein and the attachment projection 10 as a one-piece cast body, preferably made of cast steel, thus the support frame 13 from the support ribs 14 and the stiffening webs 15 with the frame structure 5 in cast in one piece.
- This also contributes to one inexpensive manufacture of the grate plate 1. If the attachment projection 10 - as shown in Fig. 6 - places - on at least one in the area of the longitudinal center the grate plate 1 or the plate base body 4 between the end face parts (or walls) 5d, 5e extending stiffening rib is formed, then the latter also ensures additional stability of the Base plate body 4.
- FIG. relate to the cross-sectional shape of the Support ribs 14 '', which in their arrangement and Distribution under the 6 '' support plate and in the base plate 4 or in its outer frame structure 5 exactly match what is shown above 1 to 6, in particular with reference to FIGS. 5 and 6, has been explained so that it is expressly referred to can be. While with reference to Fig.1, 3, and 5 the stiffening ribs 14 the cross-sectional shape of have unequal legs, has in the Design variant according to FIG. 7 each support rib 14 '' an approximately flat-arched, bent downward Channel cross section.
- each running a bead-like Constriction element 21 is provided, which is approximately the shape of a Can have semicircular strips (as shown in FIG. 7) and thereby from the underside 6''a of the support plate 6 '' against the channel cross section downwards protrudes that it together with the associated Support rib 14 '' forms a lower channel section 7''a in the lower end of the associated gas passage 7 '' empties.
- the kind of Semicircular constriction elements 21 can as separate parts, for example on the underside of the plate 6''a attached or also in one piece with the plate base body 4 be made.
- the support ribs 14 '' according to FIG. 7 should be added that - as can be seen in the drawing - here too a channel longitudinal edge of each support rib 14 '' against the Underside 6''a of the support plate 6 '' directed and thus is connected, while the other longitudinal edge of the gutter forming a gas passage gap 16 with parallel distance to the underside of the plate 6''a.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
- Furnace Details (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Baking, Grill, Roasting (AREA)
Description
- Fig.1
- einen vertikalen Längsschnitt durch eine erfindungsgemäß hergestellte und auf einem Rostplattenträger befestigte Rosttplatte;
- Fig.2
- eine Aufsicht auf die Rostplatte gemäß Fig. 1;
- Fig.3 und 4
- Explosionsdarstellungen zweier unterschiedlicher Rostplattenausführungen, bei jeweils vertikalem Längsschnitt durch die Rostplatte;
- Fig.5
- eine vertikale Längsschnittansicht durch den Plattengrundkörper, entsprechend der Linie V-V in Fig.6;
- Fig.6
- eine Aufsicht auf den Plattengrundkörper gemäß Fig.5;
- Fig.7 und 8
- eine vertikale Längsschnittansicht sowie eine Aufsicht der Rostplatte von einigen Ausführungsvarianten.
Claims (26)
- Rostplatte zum Einbau in eine Rostvorrichtung für den Wärmeaustausch zwischen schüttfähigem Gut und Behandlungsgas, insbesondere zur Befestigung auf einem Rostplattenträger (2) in einem Rostkühler, enthaltenddadurch gekennzeichnet,a) einen Plattengrundkörper (4) mit einem äußeren Rahmenaufbau (5) undb) eine am oberen Rand (5a) dieses Rahmenaufbaues befestigte Guttragplatte (6, 6', 6''), auf der von ihrer Plattenunterseite (6a, 6''a) zur Plattenoberseite (6b, 6''b) durchgehende Gasdurchtrittskanäle (7, 7'') ausgebildet sind,
daß die Guttragplatte (6, 6', 6'') aus hochverschleißfest nachbearbeitetem Walzstahl-Plattenmaterial hergestellt ist und die Gasdurchtrittskanäle (7, 7'') - im vertikalen Längsschnitt durch die Guttragplatte betrachtet - im wesentlichen geradlinig und schräg in Förderrichtung (3) verlaufend in diese Guttragplatte eingearbeitet sind. - Rostplatte nach Anspruch 1, dadurch gekennzeichnet, daß der Plattengrundkörper (4) innerhalb seines äußeren Rahmenaufbaues (5) ein parallele Rahmenseitenteile (5b, 5c) fest miteinander verbindendes Stützgerüst (13) aus Versteifungselementen (14, 14'', 15) auf, auf denen die Guttragplatte (6, 6', 6'') abgestützt und wenigstens teilweise befestigt ist, daß ferner die Versteifungselemente des Stützgerüstes (13) wenigstens z.T. in Form von mit parallelen Abständen zueinander angeordneten, sich in Plattenquerrichtung zwischen den Längsseitenteilen (5b, 5c) des äußeren Rahmenaufbaus (5) erstreckenden Stützrippen (14, 14'') mit einem nach oben offenen flachen Rinnenquerschnitt ausgebildet sind, wobei der eine Rinnenlängsrand (14a) jeder Stützrippe (14, 14'') gegen die Unterseite (6a, 6''a) der Guttragplatte (6, 6', 6'') gerichtet und mit dieser Plattenunterseite verbunden ist, während der andere Rinnenlängsrand (14b) unter Ausbildung eines Gasdurchtrittsspaltes (16) mit parallelem Abstand zur Plattenunterseite verläuft, und daß die Gasdurchtrittskanäle (7, 7'') in der Guttragplatte sich schlitzförmig und etwa parallel zu den Stützrippen (14, 14'') erstrecken, wobei sie an der Plattenunterseite jeweils über dem Rinnenquerschnitt der darunterliegenden Stützrippe ausmünden.
- Rostplatte nach Anspruch 2, dadurch gekennzeichnet, daß die Stützrippen (14, 14'') mit ihren relativ flachen Rinnenquerschnitten unterseitige Verlängerungen der darüberliegenden Gasdurchtrittskanäle (7, 7'') derart bilden, daß jeder Gasdurchtrittskanal-im vertikalen Längsschnitt durch die Rostplatte (1, 1'') betrachtet - insgesamt eine etwa zick-zack-förmige und dabei im wesentlichen eine insgesamt schrägverlaufende Kanalform besitzt.
- Rostplatte nach Anspruch 2, dadurch gekennzeichnet, daß quer zur Gutförderrichtung (3) mehrere im wesentlichen gleich große, schlitzförmige Gasdurchtrittskanäle (7) in einer Querreihe und mehrere solcher Querreihen in Plattenlängsrichtung mit gleichen Abständen hintereinander - in Gutförderrichtung betrachtet - zumindest im vorderen Längsabschnitt der Guttragplatte (6, 6') angeordnet sind.
- Rostplatte nach Anspruch 4, dadurch gekennzeichnet, daß in den rinnenförmigen Stützrippen (14) mehrere, benachbarte Stützrippen fest miteinander verbindende, bis zur Unterseite (6a) der Guttragplatte (6, 6') reichende, aufrechte und in Plattenlängsrichtung verlaufende Versteifungsstege (15) in Plattenquerrichtung verteilt derart fest angebracht sind, daß das Stützgerüst (13) etwa wabenförmig ausgebildet ist und diese Versteifungsstege (15) die Guttragplatte an Stellen zwischen einander in Plattenquerrichtung benachbarten Gasdurchtrittskanälen (7) abstützen und wenigstens teilweise fest mit der Plattenunterseite (6a) verbunden, vorzugsweise verschweißt sind.
- Rostplatte nach Anspruch 5, dadurch gekennzeichnet, daß die Gasdurchtrittskanäle (7) in den einander benachbarten, querverlaufenden Kanalreihen jeweils auf Lücke zueinander versetzt sind und in Anpassung dazu das Stützgerüst (13) eine wabenförmige Struktur mit in Querreihen gegeneinander versetzten Rechteckwaben aus fest miteinander verbundenen Stützrippen (14) und Versteifungsstegen (15) aufweist.
- Rostplatte nach Anspruch 2, dadurch gekennzeichnet, daß - in Gutförderrichtung (3) betrachtet- zumindest im vorderen Längsabschnitt der Guttragplatte (6'') mehrere im wesentlichen gleich große, schlitzförmige Gasdurchtrittskanäle (7'') vorgesehen sind, die sich jeweils durchgehend quer zur Gutförderrichtung (3) zwischen den beiden Rahmenseitenteilen (5b, 5c) erstrecken und in Plattenlängsrichtung mit gleichen Abständen hintereinander sowie parallel zueinander angeordnet sind.
- Rostplatte nach Anspruch 7, dadurch gekennzeichnet, daß in den rinnenförmigen Stützrippen (14'') mehrere, benachbarte Stützrippen fest miteinander verbindende, bis zur Unterseite (6''a) der Guttragplatte (6'') reichende, aufrechte und in Plattenlängsrichtung verlaufende Versteifungsstege (15) in Plattenquerrichtung verteilt derart fest angebracht sind, daß das Stützgerüst (13) etwa wabenförmig ausgebildet ist, wobei diese wabenförmige Struktur vorzugsweise in benachbarten Querreihen jeweils gegeneinander versetzte Rechteckwaben aus fest miteinander verbundenen Stützrippen (14'') und versteifungsstegen (15) aufweist.
- Rostplatte nach Anspruch 2, dadurch gekennzeichnet, daß der Rinnenquerschnitt jeder Stützrippe (14) etwa in Form eines ungleichschenkligen Winkels ausgebildet ist, wobei der in Gutförderrichtung (3) weisende kürzere Rippenschenkel (14a) mit der Plattenunterseite (6a) verbunden ist, der längere Rippenschenkel (14b) unter Einschließung eines relativ flachen spitzen Winkels - in Gutförderrichtung (3) betrachtet - gegen die Plattenunterseite (6a) schräg nach rückwärts gerichtet ansteigt und beide Rippenschenkel (14a, 14b) über einen bogenförmig gekrümmten Scheitelabschnitt (14c) direkt miteiander verbunden sind.
- Rostplatte nach Anspruch 2, dadurch gekennzeichnet, daß jede Stützrippe (14'') einen etwa flach-bogenförmig nach unten durchgebogenen Rinnenquerschnitt aufweist und daß mit Abstand über jedem Rinnenquerschnitt sowie parallel zur Stützrippe (14'') verlaufend jeweils ein wulstartiges Verengungselement (21) von der Unterseite (6''a) der Guttragplatte (6'') gegen diesen Rinnenquerschnitt derart nach unten vorsteht, daß es zusammen mit der zugehörigen Stützrippe (14'') einen unteren Kanalabschnitt (7''a) bildet.
- Rostplatte nach Anspruch 2, dadurch gekennzeichnet, daß der Plattengrundkörper (4) mit seinem Rahmenaufbau (5) dem darin ausgebildeten Stützgerüst (13) und einem Ansatz (10) zur Befestigung auf einem Rostplattenträger (2) als einteiliger Gußkörper, vorzugsweise aus Stahlguß hergestellt ist.
- Rostplatte nach Anspruch 11, dadurch gekennzeichnet, daß der in Gutförderrichtung (3) weisende vordere Teil der Rostplatte (1) nach unten von einer Bodenplatte (12) begrenzt ist, die mit Abstand unterhalb des Stützgerüstes (13) angeordnet ist und die eine rückwärtige Verbindungskante (12a) zur formschlüssigen Verbindung mit einem Rostplattenträger (2) sowie vorzugsweise einen gesonderten Verschlußdeckel (20) aufweist.
- Rostplatte nach Anspruch 1, dadurch gekennzeichnet, daß die Gasdurchtrittskanäle (7) - im vertikalen Längsschnitt durch die Guttragplatte (6, 6'') betrachtet, eine von der Plattenunterseite (6a) zur Plattenoberseite (6b) gleichbleibende lichte Schlitzweite (W) aufweisen.
- Rostplatte nach Anspruch 1, dadurch gekennzeichnet, daß die Gasdurchtrittskanäle (7'') - im vertikalen Längsschnitt durch die Guttragplatte (6'') betrachtet - mit einer sich von der Plattenunterseite (6''a) zur Plattenoberseite (6''b) im wesentlichen gleichförmig verengenden lichten Schlitzweite (W'') ausgeführt sind.
- Rostplatte nach Anspruch 1, dadurch gekennzeichnet, daß die Guttragplatte (6, 6') aus einem handelsüblichen Verbundplattenmaterial hergestellt ist, bei dem zumindest die mit Behandlungsgut in Berührung kommende Oberschicht hochverschleißfest nachbearbeitet ist.
- Rostplatte nach Anspruch 15, dadurch gekennzeichnet, daß die Oberschicht (6.2) des Verbundplattenmateriales durch eine Hartauftragsschweißschicht gebildet ist.
- Rostplatte nach Anspruch 1, dadurch gekennzeichnet, daß die Guttragplatte (6, 6') aus einem handelsüblichen durch nachträgliches Härten hochverschleißfest gemachtem Walzstahl-Plattenmaterial hergestellt ist.
- Rostplatte nach Anspruch 1, dadurch gekennzeichnet, daß - in Gutförderrichtung (3) betrachtet - der vordere Stirnseitenteil (5e) des Rahmenaufbaus (5) eine untere Verschleißkante (18) aus gleichartigem hochverschleißfestem Walzstahl-Plattenmaterial aufweist.
- Verfahren zur Herstellung einer Rostplatte zum Einbau in eine Rostvorrichtung für den Wärmeaustausch zwischen einem schüttfähigen Gut und Behandlungsgas, insbesondere zum Einbau in einen Rostkühler, wobei in einer Guttragplatte von ihrer Plattenunterseite zur Plattenoberseite durchgehende Gasdurchtrittskanäle ausgebildet werden und die Guttragplatte auf dem oberen Rand eines äußeren Rahmenaufbaus eines Plattengrundkörpers befestigt wird,
dadurch gekennzeichnet, daßa) für die Guttragplatte ein hochverschleißfest nachbearbeitetes Walzstahl-Plattenmaterial verwendet wird undb) die Gasdurchtrittskanäle durch ein Hochenergie-Trennschnittverfahren in Plattenquerrichtung schlitzförmig verlaufend in die Guttragplatte eingearbeitet werden. - Verfahren nach Anspruch 19, dadurch gekennzeichnet, daß als Walzstahl-Plattenmaterial handelsübliche hochverschleißfeste Verbundstahlplatten verwendet werden, bei denen zumindest eine oberste Schicht besonders verschleißfest nachgehärtet oder durch eine Hartauftragsschweißschicht gebildet wird und eine Härte von 58 bis 68 HRC (Härte nach Rockwell) besitzt.
- Verfahren nach Anspruch 19, dadurch gekennzeichnet, daß als Hochenergie-Trennschnittverfahren zum Einarbeiten der Gasdurchtrittskanäle in die Guttragplatte ein Plasma-Brennverfahren, ein Laser-Brennverfahren, ein Hochenergie-Wasserstrahl-Abrasivstoff-Schneidverfahren oder ein anderes ähnliches hochenergetisches Trennschnittverfahren benutzt wird.
- Verfahren nach Anspruch 19, dadurch gekennzeichnet, daß die Gasdurchtrittskanäle - im vertikalen Längsschnitt durch die Rostplatte betrachtet - im wesentlichen geradlinig und schräg in Gutförderrichtung verlaufend in die Guttragplatte eingearbeitet werden, wobei sie eine von der Plattenunterseite zur Plattenoberseite im wesentlichen gleichbleibende oder sich im wesentlichen gleichförmig verengende Schlitzweite erhalten.
- Verfahren nach Anspruch 19, dadurch gekennzeichnet, daß in Plattenlängsrichtung mehrere parallele Querreihen mit Gasdurchtrittskanälen - in Gutförderrichtung betrachtet - zumindest in einen vorderen Längsabschnitt der Guttragplatte und in jeder Querreihe mehrere gleich große Gasdurchtrittskanäle eingearbeitet werden.
- Verfahren nach Anspruch 19, dadurch gekennzeichnet, daß die Gasdurchtrittskanäle - in Gutförderrichtung betrachtet - zumindest in den vorderen Längsabschnitt der Guttragplatte eingearbeitet und dabei mehrere querverlaufende, sich schlitzförmig im wesentlichen durchgehend zwischen äußeren Rahmenseitenteilen erstreckende Gasdurchtrittskanäle in Plattenlängsrichtung und mit gleichen Abständen hintereinander angeordnet werden.
- Verfahren nach Anspruch 19, dadurch gekennzeichnet, daß innerhalb des äußeren Rahmenaufbaus des Plattengrundkörpers ein Stützgerüst aus Versteifungselementen ausgebildet wird, auf denen die Guttragplatte abgestützt und wenigstens teilweise befestigt wird.
- Verfahren nach Anspruch 25, dadurch gekennzeichnet, daß der Plattengrundkörper (4) mit seinem Rahmenaufbau (5), dem Stützgerüst (13) und wenigstens einem Befestigungsansatz (10) als Gußkörper, vorzugsweise aus legiertem Stahlguß in einem Stück gegossen und dabei das Stützgerüst aus Versteifungselementen einerseits in Form von Stützrippen (14) und andererseits in Form von Versteifungsstegen (15) ausgebildet wird, von denen die Stützrippen in Plattenquerrichtung mit parallelen Abständen zueinander verlaufend die beiden Längsseitenteile (5b, 5c) des Rahmenaufbaus (5) fest miteinander verbinden und mit flachen Rinnenquerschnitten gestaltet werden, in die die darüberliegenden Gasdurchtrittskanäle (7) ausmünden, während die in Plattenlängsrichtung verlaufenden Versteifungsstege (15) die rinnenförmigen Stützrippen in Plattenquerrichtung unterteilen und einander benachbarte Stützrippen im Sinne einer etwa wabenförmigen Gesamtstruktur des Stützgerüstes fest miteinander verbinden, auf dem die Tragplatte (6, 6') etwa rasterförmig abgestützt und - vorzugsweise durch Schweißstellen - befestigt wird.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19622636 | 1996-06-05 | ||
| DE19622636A DE19622636A1 (de) | 1996-06-05 | 1996-06-05 | Rostplatte sowie Verfahren zur Herstellung einer Rostplatte |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0811818A1 EP0811818A1 (de) | 1997-12-10 |
| EP0811818B1 true EP0811818B1 (de) | 2001-08-16 |
| EP0811818B2 EP0811818B2 (de) | 2007-11-21 |
Family
ID=7796262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97107556A Expired - Lifetime EP0811818B2 (de) | 1996-06-05 | 1997-05-07 | Rostplatte sowie Verfahren zur Herstellung einer Rostplatte |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US5947719A (de) |
| EP (1) | EP0811818B2 (de) |
| DE (2) | DE19622636A1 (de) |
| DK (1) | DK0811818T4 (de) |
| ES (1) | ES2161395T5 (de) |
| ZA (1) | ZA974141B (de) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9417829U1 (de) * | 1994-11-07 | 1996-03-14 | Babcock Materials Handling Division GmbH, 21614 Buxtehude | Rostplatte für den Schubrost eines Kühlers |
| DE10113516A1 (de) | 2001-03-20 | 2002-09-26 | Bmh Claudius Peters Gmbh | Verfahren und Vorrichtung zum Behandeln von Schüttgut |
| DE10201057A1 (de) * | 2002-01-14 | 2003-07-24 | Polysius Ag | Austragsboden |
| DE10221981A1 (de) * | 2002-05-17 | 2003-11-27 | Kloeckner Humboldt Wedag | Rostplatte für Schubrostkühler zum Abkühlen von heißem Gut |
| JP3404490B1 (ja) * | 2002-05-27 | 2003-05-06 | 電気化学工業株式会社 | 可動火格子 |
| DE10359400A1 (de) * | 2003-12-18 | 2005-07-14 | Khd Humboldt Wedag Ag | Schüttgutkühler zum Kühlen von heißem Kühlgut |
| US7093457B2 (en) * | 2004-01-23 | 2006-08-22 | Metso Minerals Industries, Inc. | Annular cooler pallet construction |
| DE102004040048A1 (de) * | 2004-08-18 | 2006-02-23 | Ikn Gmbh | Rostplattenanordnung für Stufenroste |
| DE102004045510A1 (de) * | 2004-09-14 | 2006-03-30 | Polysius Ag | Verfahren und Vorrichtung zum Veraschen von Brennstoff |
| US20060218872A1 (en) * | 2005-03-31 | 2006-10-05 | Bigott James W | Non-slip floor grating and method of manufacturing |
| WO2007092634A2 (en) * | 2006-02-09 | 2007-08-16 | Christy Frank L | Nasal comfort devices and methods |
| JP5113829B2 (ja) * | 2006-03-17 | 2013-01-09 | ドイコス、インベスティメンツ、リミテッド | 当板を有する液冷式火格子/火床 |
| DE102007019530C5 (de) * | 2007-04-25 | 2018-01-04 | Alite Gmbh | Verfahren und Einrichtung zum Kühlen einer auf einem Förderrost liegenden Schüttgutschicht |
| DE102009009285B4 (de) * | 2009-02-17 | 2013-11-28 | Ikn Gmbh | Rostplattenanordnung |
| CN102042765B (zh) * | 2009-10-16 | 2014-08-20 | 中冶天工建设有限公司 | 环冷机回转框架圆度调整方法 |
| BE1019360A3 (fr) * | 2010-06-03 | 2012-06-05 | Magotteaux Int | Plaque de grille. |
| DE102011080998B4 (de) * | 2011-08-16 | 2016-07-14 | IKN GmbH Ingenieurbüro-Kühlerbau-Neustadt | Kühlrost und Rostsegment zum Kühlen von Zementklinker |
| WO2013091633A1 (en) * | 2011-12-21 | 2013-06-27 | Flsmidth A/S | Apparatus and method for transporting particulate material |
| DE102012105427B3 (de) | 2012-06-22 | 2013-07-18 | Thyssenkrupp Polysius Ag | Verfahren und Anlage zur Verarbeitung eines feuchten, Kerogen enthaltenden Stoffstroms |
| CN103673614B (zh) * | 2013-12-26 | 2015-08-05 | 中冶长天国际工程有限责任公司 | 一种链篦机篦板自动检测装置 |
| ES2774702T3 (es) * | 2017-03-27 | 2020-07-22 | Alite Gmbh | Enfriador de clínker de cemento con planchas alternativas |
| CN107388834A (zh) * | 2017-08-25 | 2017-11-24 | 中冶北方(大连)工程技术有限公司 | 一种烧结环冷机回转框架连接组件 |
| CN109028975A (zh) * | 2018-07-09 | 2018-12-18 | 南通新兴机械制造有限公司 | 一种重卡牵引座微孔冷却篦板及其epc陶瓷砂芯法生产方法 |
| EP3667222A1 (de) * | 2018-12-11 | 2020-06-17 | Paul Wurth S.A. | Verfahren zum einbau oder nachrüsten eines sinterkühlers |
| EP3754257A1 (de) | 2019-06-17 | 2020-12-23 | Tiska GmbH | Komposit-roststab |
| DE102019129171B4 (de) * | 2019-10-29 | 2025-11-27 | Alite Gmbh | Roststab für Stufenrost |
| EP4477947A1 (de) * | 2023-06-16 | 2024-12-18 | Swisscomb GmbH | Auskleidungselement für eine brennkammer |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE167658C (de) * | ||||
| US2371513A (en) * | 1943-09-23 | 1945-03-13 | Fuller Co | Material cooler |
| US2431799A (en) * | 1945-11-08 | 1947-12-02 | Fuller Co | Cooler having overlapping replaceable grates |
| US3321845A (en) * | 1964-10-07 | 1967-05-30 | Abex Corp | Cooling grates |
| DE2454202A1 (de) * | 1974-11-15 | 1976-05-26 | Kloeckner Humboldt Deutz Ag | Rostplatte fuer rostkuehler |
| DE2905233C2 (de) † | 1979-02-12 | 1982-06-09 | Fritz 8740 Bad Neustadt Freier | Verfahren und Vorrichtung zur Herstellung von Lochsieben aus ungelochten Blechen, insbesondere hartplattierten Blechen |
| FR2538888A1 (fr) * | 1982-12-30 | 1984-07-06 | Ugine Aciers | Element de grille en metal moule pour echange de chaleur solide-fluide a tres haute temperature, comportant un dispositif d'accrochage integre a la structure de grille |
| DE3332592C1 (de) * | 1983-09-08 | 1985-05-15 | Karl von Dipl.-Ing. Dipl.-Wirtsch.-Ing. 3057 Neustadt Wedel | Aus Rostelementen zusammengesetzter Rostboden fuer Schuettgueter,wie Zementklinker |
| DE3734043A1 (de) * | 1987-10-08 | 1989-04-20 | Kloeckner Humboldt Deutz Ag | Rostkuehler zum kuehlen von heissem schuettgut |
| DE4103866A1 (de) * | 1991-02-07 | 1992-08-13 | Zementanlagen Und Maschinenbau | Rostplatte |
| ES2097172T5 (es) * | 1991-09-09 | 2000-10-16 | Abrasion Eng Co Ltd | Elemento de parrilla para la construccion de un emparrillado. |
| DK169218B1 (da) * | 1992-10-06 | 1994-09-12 | Smidth & Co As F L | Ristelement til en ristbund, f.eks i en klinkerkøler |
| DE4412885A1 (de) * | 1994-04-14 | 1995-10-19 | Krupp Polysius Ag | Kühlrost |
| DE9417829U1 (de) * | 1994-11-07 | 1996-03-14 | Babcock Materials Handling Division GmbH, 21614 Buxtehude | Rostplatte für den Schubrost eines Kühlers |
| DE4441009C2 (de) * | 1994-11-17 | 2001-03-29 | Karl Von Wedel | Rostplattenanordnung |
| DE19504588B4 (de) * | 1995-02-11 | 2006-07-13 | Khd Humboldt Wedag Gmbh | Rostplatte für Schubrostkühler zum Abkühlen von heißem Gut |
| DE29503606U1 (de) * | 1995-03-03 | 1995-05-11 | Gießerei Kohlscheid GmbH, 52134 Herzogenrath | Rostplatte aus Stahlguß |
| DE19537904A1 (de) * | 1995-06-28 | 1997-01-02 | Krupp Polysius Ag | Rostplatte |
-
1996
- 1996-06-05 DE DE19622636A patent/DE19622636A1/de not_active Withdrawn
-
1997
- 1997-05-07 EP EP97107556A patent/EP0811818B2/de not_active Expired - Lifetime
- 1997-05-07 ES ES97107556T patent/ES2161395T5/es not_active Expired - Lifetime
- 1997-05-07 DE DE59704275T patent/DE59704275D1/de not_active Expired - Lifetime
- 1997-05-07 DK DK97107556T patent/DK0811818T4/da active
- 1997-05-14 ZA ZA9704141A patent/ZA974141B/xx unknown
- 1997-05-16 US US08/857,532 patent/US5947719A/en not_active Expired - Lifetime
-
1999
- 1999-07-09 US US09/350,751 patent/US6266883B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0811818B2 (de) | 2007-11-21 |
| DE19622636A1 (de) | 1997-12-11 |
| EP0811818A1 (de) | 1997-12-10 |
| ZA974141B (en) | 1997-12-09 |
| ES2161395T5 (es) | 2008-03-16 |
| US5947719A (en) | 1999-09-07 |
| DK0811818T3 (da) | 2001-11-12 |
| DE59704275D1 (de) | 2001-09-20 |
| ES2161395T3 (es) | 2001-12-01 |
| US6266883B1 (en) | 2001-07-31 |
| DK0811818T4 (da) | 2008-04-14 |
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