EP3583357A1 - Vorschubrost mit rostbahntrennungselementen - Google Patents
Vorschubrost mit rostbahntrennungselementenInfo
- Publication number
- EP3583357A1 EP3583357A1 EP17761813.9A EP17761813A EP3583357A1 EP 3583357 A1 EP3583357 A1 EP 3583357A1 EP 17761813 A EP17761813 A EP 17761813A EP 3583357 A1 EP3583357 A1 EP 3583357A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grate
- bar
- separation element
- feed
- web
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000926 separation method Methods 0.000 title claims abstract description 192
- 238000005266 casting Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000010304 firing Methods 0.000 claims description 17
- 230000000284 resting effect Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 239000011651 chromium Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 description 16
- 238000013461 design Methods 0.000 description 15
- 239000000446 fuel Substances 0.000 description 12
- 238000011161 development Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 6
- 238000004056 waste incineration Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000002028 Biomass Substances 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- -1 for example Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000013502 plastic waste Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000000161 steel melt Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H7/00—Inclined or stepped grates
- F23H7/06—Inclined or stepped grates with movable bars disposed parallel to direction of fuel feeding
- F23H7/08—Inclined or stepped grates with movable bars disposed parallel to direction of fuel feeding reciprocating along their axes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H17/00—Details of grates
- F23H17/08—Bearers; Frames; Spacers; Supports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H7/00—Inclined or stepped grates
- F23H7/02—Inclined or stepped grates with fixed bars
- F23H7/04—Inclined or stepped grates with fixed bars in parallel disposition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H2900/00—Special features of combustion grates
- F23H2900/03021—Liquid cooled grates
Definitions
- the invention is directed to a stationary arrangement between two grate webs of a stepped formed from individual, arranged in rows grate bars, inclined feed grate a grate firing, especially for grate firing, wherein in the installed state of the grate separation element in a grate of the feed grate in each adjacent to the grate web separation element in the longitudinal direction Grate bar row of the two grate webs adjacent to each grate track separating element respectively a first stationary mounted grate bar and on an upper side of the first grate bar superimposed an associated second grate bar, which is mounted on the wing side of the first grate bar slidably mounted along sliding are arranged, and wherein the grate separation element as a casting with at his casting formed in Gussteilwanditch tubular water-flowable lines is formed.
- the invention is directed to a feed grate of a grate firing, in particular for grate firing, with stepwise formed of individual, arranged in several longitudinal and transverse rows of grate bars and inclined aligned grate tracks, wherein between two more longitudinal and transverse rows of grate bars comprehensive rust paths one of a variety formed on each, the stationary juxtaposed arranged web separation elements formed middle beam and in each of the Rostbahntrennungs instituten in the longitudinal direction adjacent rows of grate rails of the two grate paths several times a first stationarily mounted grate bar and an associated second grate bar advancing movably mounted on a top side of the first grate bar resting on This wing side Vorschubbewegllch is slidably mounted along, are arranged, and wherein the grate web separation elements each as a casting with in his casting in G Be formed part walls formed tubular water-flow lines.
- Feed grates are in particular part of the grate firing of grate firing systems.
- a feed grate is one Usually consisting of several grate tracks, inclined combustion grate of a grate firing system, on which abandoned at one end to be burned garbage and transported to the other end of the combustion grate. On the way from the end of the task to the end of the discharge, the garbage is burned.
- Each grate web consists of alternately each a transverse row (transverse row) forming stationary arranged first grate bars and relative to these advancing movable on these along sliding sliding second grate bars.
- the grate bars which are movable in advance, are all arranged in such a way that they are moved uniformly on the row of first grate bars arranged below them. In this respect, moves each transverse row of advance movably mounted second grate bars uniformly.
- the grate bars are all formed with the same width, so that uniform longitudinal rows form in the longitudinal direction of a grate over its length, in each of which a fixedly mounted first grate bar and a second grate bar movably mounted one behind the other are arranged alternately.
- the design of the feed grate to a combustion grate is achieved, inter alia, that the individual grate bars in at least one of its outer surfaces have an outlet slot for the grate bars from the bottom flowing combustion air. After an initial ignition of the refuse, the combustion air flowing in from below ensures permanent combustion of waste located on the respective grate tracks.
- feed grids are preferably used in waste incineration, it is also possible for biomass or so-called substitute fuel, such as plastic waste, for example, or mixtures thereof to be incinerated from said fuels.
- grate webs expand due to the heat generated during the combustion heat, but at a shutdown of the feed grate of the grate firing but also contract again, are the individual Rostbahnen arranged so that can expand at least on one longitudinal side.
- a grate web separation constructed from individual, stationarily arranged grate separation elements is formed centrally between the two grate paths, which is also referred to as a center beam.
- Such web separation elements are often formed as an arc in the form of an upside down U. Due to the casting technique, which requires that the casting encased in the casting mold as a whole be provided with both a feeder for supplying the melt and a riser for the escape of air or gases and for receiving excess melt, can not be In particular, these U-shaped grate separation element can not be produced in any relative spatial position. This leads to segregations or voids forming in the walls of such grate separation elements. In operation, this leads to the fact that the existing Lunkerstellen obstruct the heat dissipation from the outside of such a grate web separation element towards the water-carrying cooling tubes in the interior of the grate separation element in the operation of such use. This leads to localized overheating of the wall material and to a bursting of the wall. Such grate separation elements therefore have a service life of about a maximum of one year during operation.
- the invention has for its object to provide a solution that makes it possible to provide a well pourable grate separation element with improved adaptation to the grate bar geometry of the feed grate.
- This object is achieved by a grate web separation element having the features according to claim 1 and a feed grate having the features according to claim 17.
- Advantageous embodiments and expedient developments are the subject of the respective subclaims.
- this object is achieved in that the grate separation element on the upper side a flat support surface and front side in the thrust direction of the feed grate an upright face and underside a front bearing surface and spaced apart has a formed in the form of a recess rear grate bar support receptacle.
- the above object is achieved in a feed grate of the type described in more detail that at least a portion, preferably the entirety, the plurality of grate separation elements on the top side a flat support surface and front side in the thrust direction of the feed grate an upright end face and underside a front support surface and spaced thereto underside has a trained in the form of a recess rear grate bar support .
- the grate web separation element according to the invention is adapted in its geometric design to the shape of the grate bars of step-shaped feed grates or combustion grates, results in an improved insertion of the grate separation element in the grate formed by the grate bars of two adjacent grate web grate geometry of the feed grate.
- Rostbahntrennungs institutes a good castability of this component, so that it can be produced well with a molten steel even with applied or formed tubular conduits in its wall region, in particular in which the lines having Rostbahnêt as a casting.
- the grate web separation element according to the invention is thereby particularly well suited for use in conventional feed grates or combustion grates, in particular grate firing systems, that it has a front support surface and spaced from the underside a formed in the form of a recess rear grate bar support receptacle underside.
- a grate separation element With the front bearing surface, a grate separation element can be placed on the upper side planar support surface of a immediately before arranged further grate separation element, thereby resulting in the step-like design of the feed grate analogous to the arrangement of the grate bars.
- the formation of the Roststablying makes it possible to set up and store the grate web separation element on conventional, existing in the grate tracks of the feed grate grid bar.
- round rods can advantageously be used here.
- the feed grate according to the invention has the same advantages.
- the height of the grate separation element is at least equal to the height, which in each superimposed stationary stored first and associated movably mounted second grate bar in its installed state in a grate of the feed grate from the bottom of the Support surface of the first grate bar extends to the top of the support surface of the second grate bar, which provides the invention in development.
- the height extending from the underside of the support surface of the grate web separation element to the upper side of the support surface of the grate separation element height is equal to the added individual heights of the first and second grate bar. It is particularly advantageous if the level of the upper-side planar support surface of the grate separation element is equal to or at least substantially equal to the level of the upper side of the wing side of a second grate bar adjacent to the grate separation element, when it is in its installed position in which it is on the upper side Wing side of an associated first grate bar rests.
- the invention provides that the upper planar supporting surface of the grate web separating element is the same length as or shorter than the upper side of the wing side of the first and / or the second grate bar.
- This refinement makes it possible to arrange a grate-web separation element according to the invention in a feed grate adjacent to a grate bar mounted without being moved forward without the storage of the second grate bar being moved on a grate bar carrier being adversely affected by the length of the grate-web separation element.
- the grate web separation element according to the invention is then adapted to the geometry of the front of the surrounding grate bars when the upstanding end edge of the grate separation element has a height which, preferably at least substantially equal to the height of the front upright end edge of the first or second grate bar ,
- a grate separation element is then particularly advantageous as a replaceable component particularly advantageous in the design and structural design of adjacent to him arranged in a feed grate rust paths and longitudinal and transverse rows of grate bars, when extending from the edge lower edge of the upright end face of the grate web separation element to the center a length extending from the lower edge of the upright end face of the first grate bar to the center of a lower rear grate bar support of the first grate bar extending and / or from an edge lower edge of the upstanding end face of the second grate bar to the center of a lower-side rear grate bar support of the second grate bar extending length, which is the invention in further out design.
- This makes it possible to use existing substructures such as grate bar support on which rest the grate bars or to extend in order to also store each a grate separation element can.
- the grate separation element during operation of the feed grate is exposed as a combustion grate, in particular a waste incineration plant, a high temperature load and also the influence of highly corrosive components, in particular gases that form during waste incineration, it is also advantageous if the grate separation element as from a , in particular high chromium-containing high-grade steel melt cast casting, which the invention further provides.
- the width of a grate web separating element is equal to or twice the width of the first and / or second grate bar, which is a further embodiment the invention provides.
- the invention provides in a further development that the tubular, water-flow lines are formed and arranged in meandering labyrinthine paths running below the top planar support surface in a supporting floor of the grate separation element ,
- the connecting surface in such a length that, when the respectively movable second grate bar is in its front end position, which then between the upright end face of the stationary mounted first grate bar and the upper airfoil side of it lying level and height difference formed in the grate separating element as skewed or curved surface or plane bridged feed movable second grate bar.
- the invention therefore provides in an embodiment that the grate web separation elements on the front side has an inclined and / or curved connecting surface between the front of its upper-side planar support surface and its upright end face.
- the feed grate according to the invention is characterized in that its grate path separating elements are designed in the embodiment and development of the grate path separating element according to the invention. It is therefore further contemplated that the grate web separation elements are formed as a grate web separation element according to one of claims 2-16.
- a grate sheet separating element according to the invention is formed substantially overall in a length corresponding to the length of a grate bar plus the distance corresponding in the front feed position of a thrustable second grate bar between the front end face and the end face of the first grate bar mounted therebelow which rests the second grate bar, the number of in a feed grate according to the invention then, when the grate separation in the form of a central bar consists of only one row behind the other arranged web separation elements, half the size of the arranged in a longitudinal row number of first and second grate bars.
- the invention therefore also provides, in a further development of the feed grate, that the number of grate path separating elements forming the middle beams is half the size of the feed movable and stationary first and second grate bars arranged in each of the two longitudinal rows adjoining the longitudinal sides of the center beam.
- the feed grate according to the invention is also characterized in an embodiment in that the number of grating path separating elements forming the middle beam is half the number of transverse rows of the grate path (s) adjacent to the middle beam.
- each grate separation element is formed as a single exchangeable component of the central bar and interchangeable between two grate paths of the feed grate is arranged.
- the invention is distinguished by the fact that the feed grate is formed in two lanes with two grate paths separated by a grate path separation designed as a middle beam.
- FIG. 1 is a schematic perspective view of a feed grate according to the prior art of a grate firing a grate furnace
- Fig. 2 in a schematic perspective view as dissolved out
- FIG. 3 in a schematic perspective view as dissolved out
- FIG. 4 in a schematic representation as a detached group representation, the arrangement of several inventive
- Rostbahntrennungsetti in their relative position to on the opposite to the view of FIG. 3 opposite adjacent side arranged first and second grate bars in their respective mounting positions in a grate of a feed grate invention
- FIG. 5 in a schematic side view as dissolved out
- Fig. 7 in a schematic side view as. leached
- FIG. 9 is a schematic side and sectional view of the arrangement of several inventive grate separation elements in dissolved group representation in its installed position as grate separation in the form of a central bar in a grate of a feed grate invention, Fig. 10 in perspective view of the underside an inventive
- Fig. 1 1 in a schematic side view of the invention
- FIGS. 12 is a perspective plan view of the meander-like labyrinth-shaped, tubular lines of the inventive web separation element according to FIGS. 10 and 11.
- FIGS. 3-8 depict special views detached from the illustration according to FIG. 2, but in each case the relative positions of grate separation elements and first and second grate bars shown in FIG to each other, as will be explained in more detail below.
- Fig. 1 shows a generally designated 1 feed grate a grate firing a grate furnace.
- the feed grate 1 is formed in two lanes and comprises two grate webs 2, of which only one is shown and the other, identically constructed second grate web in the shown free Rostbahnfeld 2 'is arranged.
- the two grate webs 2 are in the middle of the feed grate 1 by a stationary trained web separation 3 ', which is composed of individual grate web separation elements 4', centrally and in half separated with respect to the width of the feed grate 1 from each other.
- the individual grate webs 2 have a multiplicity of longitudinal rows 5 and transverse rows 6.
- the longitudinal and transverse rows 5, 6 are formed of individually adjacently juxtaposed first grate bars 7 and second grate bars 8.
- the first grate bars 7 are fixedly mounted grate bars and the second grate bars 8 are grate bars which are mounted so as to be movable in advance and which can slide along on an upper side of the wing 9 of a first grate bar 7 on this upper side of the wing 9 between a front and a rear one End position of their respective front upright end face 10 a travel V are exaggerated.
- a respective longitudinal row 5 thus consists of a plurality of longitudinally L at least substantially aligned first and second grate bars 7, 8, wherein in each case alternately a stationary mounted first grate bar 7 and resting thereon a slidably mounted along sliding second grate bar 8 again followed by a is now arranged on the upper side Tragfiamball 1 1 of the lower side adjacent second grate bar 8, which also first grate bar 7 then again a second grate bar 8 is arranged.
- This design results from the discharge side A to the task side B of the feed grate 1 through a stepped and inclined rising grate formed surface of each grate 2.
- the step shape results from each alternating superposed arrangement of a first grate bar 7 and a second grate bar eighth
- each transverse row 6 is formed from adjacent in the transverse direction Q of the feed grate adjacent grate bars.
- each transverse row consists of a respective type of grate bar, ie either exclusively fixedly mounted or mounted first grate bars 7 or second movable movable grate bars 8, so that alternately a fixed transverse row and a movable movable transverse row over the length of the feed grate 1 are formed.
- the transport of the refuse to be incinerated on the advancing grate 1 from the feed side B to the discharge side A is effected.
- the combustion air required for the combustion of the refuse flows to the plurality of first and second grate bars 7, 8 on the underside and exits through the upper side in the upper-side wing sides 9, 10 formed air outlet slots 12 as combustion air.
- the feed grate 1 described above and shown in FIG. 1 differs from the feed grate according to the invention only in that the grate web separation 3 'designed as center beam 13 is formed from grate web separation elements 4' according to the prior art.
- These stationary arranged and stored grate separation elements 4 ' are formed in a known manner in the form of an upside-down U as a casting with formed in his casting in Gussteilwandungen tubular water-flowable lines and protrude, as shown in FIG. 1 can be seen on the through the first and second grate bars 7, 8 formed Rostbahn Structure addition.
- a grate web separation 3 of a feed grate 1 according to the invention formed from grate web separation elements 4 according to the invention is explained in more detail below with reference to FIGS. 2-9.
- FIG. 2 shows, in the form of a group of grate web separation elements 4 detached from a grate web 2 and first and adjacent thereto second grate bars 7, 8 their relative position and mounting position to each other in their respective installation positions in a grate web 2 of a feed grate. 1
- FIG. 2 is a representation of a group of first and second grate bars 7, 8 and grate path separating elements 4 cut out of the grate path 2 in its installed state in the grate track 2 of a feed grate 1.
- FIG. 2 two grate separation elements 4 can be seen in FIG. 2, which are each assigned a pair of stationary first grate bars 7 and second grate bars 8 movably mounted on each side.
- the feed movable second grate bars 8 are all shown in their rear end position of their front upstanding end face 10
- Fig. 2 on the opposite, right side arranged second grate bars 8 on this page in its front end position of its front upright end face 10 are shown, wherein the respective rear and front end position Define the V travel, the each advancing movable second grate bar 8 in the course of its advancing movement from its rear end position to its front end position and back to its rear Exhausted final position.
- each grate web separation element 4 on the upper side a flat support surface 15 and front side in the thrust direction of the feed grate 1 an upstanding end face 16.
- each grate separation element 4 has a front support surface 17 adjoining the front side upright end surface 16 and, spaced therefrom, has a rear grate bar support receptacle 18 formed in the form of a recess.
- each grate web separation element 4 rests on the flat support surface 15 of the next grate web separation element 4 adjacent to it in the longitudinal direction L to the front.
- the upper-side planar support surface 15 has a Length L1 up. This length L1 is at least equal to the length L2, the second grate bar 8 on the upper side of the wing surface 9 of the front longitudinally L adjacent to him first grate bar 7 in its advancing movement between the front and rear end position of its front upright end face 10 as a path V Butters.
- the total length L4 of a grate separation element 4 is at least as long as that of the front end edge of a stationary first grate bar 7 extends to the rear end position of the front upright end face 10 of the second grate bar 8 movably mounted on the wing side 9 of this first grate bar 7.
- the total length L4 is formed 10 to 20% longer than the length L3, in the rear end position of a respective upright end face 10 of a second grate bar 8 movably mounted, still a sufficient lateral contact surface with the adjacent grate separation element 4 and a sufficient overlap remaining in this position from the upper-side wing side 1 of a second grate bar 8 with the upper-side planar support surface 15 of the adjoining grate web separating element 4 form.
- each grate separation element 4 may be the same length or depending on the length L2 of the respective trained travel V shorter than the upper side of the wing side 1 of a second movable grate bar 8 mounted movably.
- first and second grate bars 7, 8 are of geometrically identical design, so that any of these grate bar elements can be used both as a stationary mounted first grate bar 7 and as an advanceably mounted second grate bar 8, both have the Grate bars 8 and the grate bars 7 a length L5 of their respective upper side wing sides 9, 1 1.
- each grate separation element 4 has a front surface 20 which connects these two surfaces and is inclined and / or curved.
- FIG. 5 shows a side view of the group of grate separation elements 4 in the arrangement with first and second grate bar elements 7, 8 as shown in Fig. 4 in a perspective view, ie with their respective front end position of their advancing second grate bars 8.
- Fig. 6 shows the opposite view of the respective opposite side surface of the grate separation elements 4 in the arrangement, as shown in Fig. 3, ie with each located in its rear feed position of its advancing second grate bars 8.
- FIGS. 7 and 8 show side views of the opposite sides of the arrangements shown in FIGS. 5 and 6, respectively.
- Fig. 7 shows a side view of the Fig. 5 opposite side of the grate separation elements 4, so that a top view of this (in Fig.
- FIG. 8 shows the side of the grate web separation elements 4 opposite the illustration according to FIG. 6, so that a top view results on the first and second grate bars 7, 8 located on the left side of the grate web separation elements in FIG. 2 .
- FIGS. 5 and 7 show the second grate bar 8 movably mounted in each case in its front end position of its advancing movement and show FIGS. 6 and 8 the second grate bar 8, which is movably mounted in advance, in each case in its rear end position of the advancing movement.
- FIG. 9 shows a side view of two superimposed web separation elements 4 of an inventively constructed grate separation 3, which is arranged as a central beam 13 fixed on a support structure 21 of a grate 2.
- the right in Fig. 9 in the feed grate 1 front grate separation element 4 is drawn in a dotted line representation, so that the adjoining adjoining first grate bars 7 and second grate bars 8 clearly stand out.
- the representation of FIG. 9 corresponds to the illustrations of FIGS. 4, 5 and 7, in which the respectively movable second grate bar 8 is in its front end position of its advancing movement.
- each grate separation element 4 is equal to the total height, which in each superimposed stationary stored first grate bar 7 and associated feed movable resting thereon mounted second grate bar 8 in its installed state in a grate 2 of the feed grate 1 extends from the underside 22 of the support surface 23 of a first grate bar 7 (see also FIGS. 7 and 8) to the upper-side airfoil side 1 of the second grate bar 8.
- the height H4 shown in the figures represents the height that the grate web separation element 4 has at least.
- the term "substantially equal” includes deviations upwards in a size of maximum
- the individual heights H7 and H8 each extend from a lower-side support surface of a grate bar to its upper-side airfoil side, ie the first grate bar 7 from its underside 22 of the support 23 to the upper side Tragfiambaenseite 9, which height is designated as height H7, and the second grate bar from the bottom 24 of the support 25th to the upper side wing side 1 1, which is referred to in the figures as height.
- the total height H4 of a grate separation element 4 results from the addition of the individual heights of the grate bars 7, 8, ie the height H7 of the first grate bar 7 and the height H8 of the second grate bar 8.
- the from the underside of the support side 26 of the front support surface 17 height of the grate separation element 4 up to the top side 26 of the support surface 15 of the grate separation element 4 extending height H4 is equal to the added individual heights H7, H8 of the first and second grate bar 7, 8 in the embodiment.
- the heights of the front-side upright end face 16 of the grate separation element 4 and the front-side upright end face 14 of the first grate bar 7 and the front-side upright end face 10 of the second grate bar 8 are formed with an identical height extent or height. At least these heights are in turn essentially the same, which means that the heights differ by a maximum of 10%, preferably by 5%, in their longitudinal extent.
- both the first grate bar 7 are characterized as Also, the second grate bar 8 and the grate separation element 4 characterized by the fact that they all have a same length L6, extending from a respective edge lower edge 30.1, 30.2 or 30.3 of the respective upright end face 10, 14, 16 to a from the vertical precipitation results in the plane of the respective underside of the front support surfaces 17, 22 and 25, which is precipitated from the center of an incircuit 33 which can be formed in the respective rear grate bar support 18, 31 or 32.
- this length L6 is shown in FIG. 11.
- the length L6 extends from the edge-side lower edge 30.3 of the upright end face 16 of the Rostbahntrennungs institutes 4 to one from the center of the lower-side rear grate bar support 18 of the
- Grate web separation element 4 filling incircuit 33 precipitated solder 34 extends.
- identical lengths L6 each extend from an edge-side lower edge 30.1, 30.2 of the upright end faces 14 and 10 of the first grate bar 7 and second grate bar 8 to the solder dropped from the center of an inscribed circle arranged in a respective grate bar holder 31, 32.
- the grate web separation element 4 is dimensioned such that a first and a second grate bar 7, 8 do not project beyond the top-side planar support surface 15 of the grate web separation element 4 in their respective superimposition.
- the front ends of the first and second grate bars 7, 8 which comprise the respective upright end faces 10, 14 are not in front of the connecting surface 20 of the gripper bar when the second grate bar 8 is in its front end position during its advancing movement Rostbahntrennungs institutes 4 protrude.
- the length L4 of the grate separation element 4 is at least as long as the plane extending from the front upright end face 14 of a first grate bar 7 level to the rear end 35 of the upper side wing side 1 1 of a resting on the first grate bar 7 second grate bar 8, if this is in its front end position of its advancing movement, extending length L7.
- the length L4 of the grate separation element 4 is as long as the plane defined by the front upright end face 14 of a first grate bar 7 to the rear end of the second grate bar 8 resting on the first grate bar 7 when in its forward end position its advancing movement, extending length L10.
- the length L4 is the same length as the length L7, as is also the case in the embodiment.
- the grate web separation element 4 is formed in such an overall length L4, which is at least, preferably approximately, in particular exactly equal to that resulting from the addition of a rear end 35 of the upper side of the wing side 1 1 of a second grate bar 8 mounted to be moved forward to the plane defined by its front upright face 10 plus a plane defined by the front upright end face 10 of the second grate bar 8 to that of FIG the front upright end face 14 of an adjacent below the second grate bar 8 lying first grate bar 7 spanned plane extending length 9 resulting total length.
- the width B4 of the grate separation element 4 is equal in the embodiment both the width B7 of the first grate bars 7 and the width B8 of the second grate bars 8.
- dimensions can also be selected in which the width B4 of the grate separation element 4 is a multiple of the width B7 of a first grate bar 7 or the width B8 of a second grate bar 8 corresponds, in which case the width B4 is preferably twice as large as the width B7 or the width B8.
- the rear grate bar support receptacle 18 is in the installed state of the grate separation element 4 in the feed grate 1 on a stationary mounted grate bar 36 which, as is apparent from Fig. 1 1, the diameter of the inscribed circle 33.
- the grate bar carrier 36 is the stationary mounted grate bar carrier 29, on which the first grate bar 7 is mounted stationary.
- the rear grate bar support receptacle 18 of the grate separation element 7 and the rear grate bar support receptacle 31 of the first grate bar 7 are on the same stationary mounted grate bar support 29, 36. All grate bars 28, 29 and 36 are formed as a round bar.
- the grate sheet separating element 4 shown in a perspective view as viewed from below in FIG. 10 is formed as a single exchangeable component. It is cast as a casting 37 in a practical casting process from a molten steel.
- the molten steel is preferably a chromium-containing molten steel with the material number 1.4823 or 1.4740.
- the grate web separation element 4 is made of a stainless steel melt having between 25 and 28 wt .-% chromium at 0.3 to 0.5 wt .-% carbon and a weight fraction of 3 to 6% nickel.
- the tubular water-permeable lines extend below the top-side planar support surface 15, below the top of the connection surface 20 and below the front upright end face 16, as can be seen by the dashed lines in Fig. 1 1. From the support bottom 39 protrude the two connection pipes 40, 41 out, which can be connected to water-bearing lines.
- the grate web separation element 4 is formed as a so-called water-cooled grate web separation element.
- fuel can also be any type of substitute fuel or secondary fuel obtained in particular from waste, but also biomass and any combustible mixture of the stated fuels.
- the invention can also be used in feed grates for calcination or roasting or burning treatment of substances such as iron or processed minerals such as cement, ore, coal or chemical substances are used.
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- Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102017103343 | 2017-02-17 | ||
PCT/EP2017/066013 WO2018149516A1 (de) | 2017-02-17 | 2017-06-28 | Vorschubrost mit rostbahntrennungselementen |
Publications (2)
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EP3583357A1 true EP3583357A1 (de) | 2019-12-25 |
EP3583357B1 EP3583357B1 (de) | 2023-05-03 |
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EP17761813.9A Active EP3583357B1 (de) | 2017-02-17 | 2017-06-28 | Vorschubrost mit rostbahntrennungselementen |
Country Status (5)
Country | Link |
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EP (1) | EP3583357B1 (de) |
JP (1) | JP6978155B2 (de) |
KR (1) | KR102298181B1 (de) |
PL (1) | PL3583357T3 (de) |
WO (1) | WO2018149516A1 (de) |
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DE102022109943A1 (de) | 2022-04-25 | 2023-10-26 | Standardkessel Baumgarte Gmbh | Rostbahntrennungselement |
EP4361500A1 (de) | 2022-10-26 | 2024-05-01 | Hitachi Zosen Inova AG | Rostbahnbegrenzungselement für einen verbrennungsrost |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0678812B2 (ja) * | 1991-06-26 | 1994-10-05 | ティー.アイ.アール.ユー.−トレトマン アンデュストリエル デ レジデュ ユルバン | 密封梁 |
ES2115837T3 (es) * | 1993-10-21 | 1998-07-01 | Asea Brown Boveri | Parrilla para una instalacion de combustion. |
DE19648128C2 (de) * | 1996-11-21 | 2002-11-07 | Alstom | Rost für eine Feuerungsanlage |
DE10011791B4 (de) * | 2000-03-13 | 2004-01-29 | Fisia Babcock Environment Gmbh | Fluidgekühltes Mittelbalkenelement für mehrbahnige Verbrennungsroste und Mittelbalken |
JP2002089808A (ja) * | 2000-09-12 | 2002-03-27 | Kubota Corp | ストーカ式焼却炉 |
JP4742314B2 (ja) * | 2006-03-24 | 2011-08-10 | 地方独立行政法人北海道立総合研究機構 | 耐熱鋳鋼、焼却炉及び焼却炉の火格子 |
-
2017
- 2017-06-28 PL PL17761813.9T patent/PL3583357T3/pl unknown
- 2017-06-28 WO PCT/EP2017/066013 patent/WO2018149516A1/de unknown
- 2017-06-28 EP EP17761813.9A patent/EP3583357B1/de active Active
- 2017-06-28 JP JP2019544648A patent/JP6978155B2/ja active Active
- 2017-08-15 KR KR1020197027153A patent/KR102298181B1/ko active IP Right Grant
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Publication number | Publication date |
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KR102298181B1 (ko) | 2021-09-07 |
EP3583357B1 (de) | 2023-05-03 |
JP6978155B2 (ja) | 2021-12-08 |
JP2020507739A (ja) | 2020-03-12 |
KR20200002796A (ko) | 2020-01-08 |
PL3583357T3 (pl) | 2023-09-11 |
WO2018149516A1 (de) | 2018-08-23 |
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