Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F26—DRYING
  • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
  • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
  • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
  • F26B11/028—Arrangements for the supply or exhaust of gaseous drying medium for direct heat transfer, e.g. perforated tubes, annular passages, burner arrangements, dust separation, combined direct and indirect heating
• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
  • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
  • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
  • E01C19/05—Crushing, pulverising or disintegrating apparatus; Aggregate screening, cleaning, drying or heating apparatus; Dust-collecting arrangements specially adapted therefor
• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
  • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
  • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
  • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
  • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
  • E01C19/1027—Mixing in a rotary receptacle
  • E01C19/1036—Mixing in a rotary receptacle for in-plant recycling or for reprocessing, e.g. adapted to receive and reprocess an addition of salvaged material, adapted to reheat and remix cooled-down batches
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
  • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
  • F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F26—DRYING
  • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
  • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
  • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
  • F26B11/024—Arrangements for gas-sealing the drum
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F26—DRYING
  • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
  • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
  • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
  • F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F26—DRYING
  • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
  • F26B23/00—Heating arrangements
  • F26B23/02—Heating arrangements using combustion heating
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F26—DRYING
  • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
  • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
  • F26B25/06—Chambers, containers, or receptacles
  • F26B25/08—Parts thereof
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F26—DRYING
  • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
  • F26B3/00—Drying solid materials or objects by processes involving the application of heat
  • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
  • F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried

Definitions

• the invention relates to a flame protection device for a burner and a drying drum with such a flame protection device.
• the GB 2 506 440 A discloses a device for drying bulk material.
• US 5,522,158 reveals a drying drum with a recirculation chamber for exhaust gas reduction.
• a flame tube is arranged in a drying drum to protect the burner flame.
• a lamellar recuperator is arranged in the drying drum for the targeted combustion of pollutant components in the exhaust gas and/or by-gases.
• the invention is based on the objective of improving the combustion process and, in particular, reducing pollutant emissions.
• the core of the invention lies in the fact that, in a flame guard device, circumferentially adjacent lamellae can be arranged to seal against one another.
• a circumferential gap seal is formed between circumferentially adjacent lamellae.
• a gap is provided between the adjacent lamellae, which decreases and, in particular, closes during operation of the flame guard device due to thermal expansion of the lamellae.
• the circumferential gap seal also known as a labyrinth seal, is a non-contact seal. Its sealing effect is based on the lengthening of the flow path through the gap to be sealed, which significantly increases flow resistance. This path lengthening is achieved primarily through the interlocking of the shaped elements of the adjacent lamellae.
• the circumferential gap seal In a plane perpendicular to the central longitudinal axis of the flame guard, the circumferential gap seal exhibits It has a non-linear shape and is, in particular, curved at least in sections. Specifically, the circumferential gap seal is S-shaped in the plane oriented perpendicular to the central longitudinal axis.
• the shaped elements on the side of the gap can cause turbulence of a gas flow in the flame protection device, thus achieving a higher sealing effect.
• the gap width of the circumferential gap seal is at most 5 mm, in particular at most 4.5 mm, and in particular at most 4 mm.
• the gap width in the cold state is in particular at most 100%, in particular at most 90%, and in particular at most 80%.
• the gap is designed such that it reaches a minimum gap width when operating temperature is reached.
• the minimum gap width is in particular at most 1.0 mm, in particular at most 0.8 mm, in particular at most 0.5 mm, in particular at most 0.3 mm, and in particular at most 0.1 mm.
• the minimum gap width when operating temperature is reached is at most 20%, in particular at most 15%, in particular at most 10%, in particular at most 5%, and in particular at most 2%.
• the gap can also be designed in such a way that, upon reaching the operating temperature, the thermal expansion of the fins causes the adjacent fins to touch each other at least in certain areas, thus closing the gap at least partially.
• the fins are made of a heat-resistant material, in particular an austenitic chromium-nickel steel, specifically material number 1.4841 according to DIN EN 10095.
• This material has a coefficient of thermal expansion ⁇ between 15 x 10 ⁇ 6 and 20 x 10 ⁇ 6 , and in particular between 17 x 10 ⁇ 6 and 18 x 10 ⁇ 6 , within the relevant temperature range.
• the dimensioning of the gap for the circumferential gap seal depends in particular on the material used for the fins.
• Other chromium-nickel steels are also possible, in particular 1.4828 or 1.4742, which is known under the trade name Sicromal 10.
• louvers it was recognized that it is not necessary for the louvers to overlap circumferentially and/or axially. This simplifies, in particular, the manufacture of the louvers and especially their arrangement into a flame-resistant device.
• a flame guard in which the circumferential arrangement of the louvers is self-supporting offers static advantages, particularly during installation. Securing the flame guard, for example in a drying drum, is simplified. It has been recognized, in particular, that the circumferential gap seal simplifies the self-supporting function of the circumferential arrangement. Because adjacent louvers on the circumferential gap seal interlock with each other, at least partially and linearly in the radial direction, and especially alternately in the circumferential direction, no additional structural elements are required.
• a flame protection device enables a simple and efficient design of the gap seal.
• the adjacent lamellae each have sealing elements that correspond to each other.
• the sealing elements are arranged laterally on the lamellae. In particular, the sealing elements extend in a direction oriented parallel to the central longitudinal axis.
• the sealing elements are designed, in particular, as sealing strips.
• the sealing elements are, in particular, part of the circumferential gap seal. In particular, the sealing elements are designed such that an outer contour of one sealing element corresponds to an inner contour of the other sealing element.
• a flame protection device enables the uncomplicated and efficient formation of the sealing elements on the louvers.
• the manufacturing of the louvers with the sealing elements is simplified.
• the sealing elements are, in particular, designed as folded edges.
• the sealing elements can extend along the entire length of the louvers.
• the sealing elements can be designed with at least partial interruptions, particularly to facilitate the manufacturing of the sealing elements. to simplify the process.
• the lamellae exhibit increased stiffness. The risk of undesirable deformation of the lamellae due to thermal stress is reduced and, in particular, eliminated.
• sealing elements in particular as pre-formed, especially strip-like, shaped elements to the lamellae, in particular by welding and/or detachably by screwing them on.
• louvers according to claim 4 are particularly easy to manufacture.
• Each louver has a flame-resistant section, which is particularly rectangular in design. Sealing elements are attached laterally to the flame-resistant section.
• the louvers can be manufactured from a sheet metal blank, particularly by forming the bends.
• a louver holder according to claim 5 ensures simplified assembly.
• the louvers are placed on and/or attached to the louver holder.
• the louvers are, in particular, detachably attached to the louver holder.
• the advantageous attachment of the louver holder to the louver reduces maximum louver deformation due to thermal expansion.
• the louver deformation is reduced by more than half compared to a louver according to the DE 10 2017 212 046 A1 and in particular reduced to a maximum of 40% of the deformation of such a lamella.
• several lamella holders are present on the lamella, especially exactly two lamella holders per lamella.
• the lamellae can be permanently and, in particular, inseparably connected to their respective lamella holders; specifically, the lamella holders are welded to the lamellae. It is advantageous if the contact area between the lamella holder and the lamella is minimized.
• the lamella holder is positioned with its end face against an outer surface of the lamella. A substantially linear contact surface is formed between the lamella holder and the lamella, oriented in the circumferential direction and, in particular, perpendicular to the central longitudinal axis.
• louvers are attached sequentially to the respective louver holders in the circumferential direction.
• the louvers are placed, in particular, onto the louver holders.
• recesses especially perforations, can be provided on the outer sides of the louvers.
• the louver holders can engage in the recesses or perforations with corresponding projections.
• the last louver of the circumferential arrangement is inserted axially between two adjacent louvers. This inserted louver is also referred to as the end louver.
• the end louver is held by an end louver holder, which differs structurally from the other louver holders.
• the end louver holder does not have any radially projecting projections on its end faces that engage in the corresponding recesses and/or openings. Instead, the end slat holder has a curved support section to which the end slats are connected to the end slat holder, in particular welded, especially by means of spot welding.
• a flame guard according to claim 6 is modular in design.
• the individual lamellae can be designed to be small and their length adapted to the manufacturing process.
• the axial extent of the flame guard can be easily extended.
• the flame guard can be easily adapted to the expected length of the burner flame.
• an axial gap seal can be formed between circumferential arrangements arranged one behind the other.
• the lamellae according to claim 7 enable a straightforward design of the axial gap seal.
• a bend oriented transversely to the central longitudinal axis enables an advantageous design of the axial gap seal.
• the lamella is additionally stabilized and exhibits increased stiffness.
• a drying drum according to claim 8 enables the advantageous execution of the combustion process with increased efficiency and/or reduced exhaust gas emissions.
• the drying drum enables the use of increased proportions of recycled asphalt granulate in asphalt production.
• the arrangement designated as a whole by 1 comprises a drying drum 2, on the end face of which a burner 3 is arranged.
• the arrangement 1 is in particular part of an asphalt plant in which asphalt material is produced.
• drying drum 2 white minerals are heated in a countercurrent process. This means that the material flow direction 4 and the heat propagation direction 5 are oriented in opposite directions.
• the drying drum 2 can also be operated in a cocurrent process. In particular, other materials, especially rock and/or recycled asphalt, can also be heated in the drying drum 2.
• the burner 3 generates a burner flame 6, which extends at least partially into the drying drum 2.
• a flame guard is arranged in the drying drum 2, particularly in the area of the burner flame 6.
• the flame guard has a central longitudinal axis 7 which coincides with a rotational axis 8 of the drying drum 2.
• the flame guard has several louvers 9 arranged circumferentially 10 with respect to the central longitudinal axis 7.
• the louvers 9 ensure that thermally heated air remains within the circumferential arrangement 10 and does not unintentionally escape, particularly in a radial direction with respect to the central longitudinal axis 7.
• the louvers 9 prevent material heated in the drying drum 2 from unintentionally falling into the burner flame 6 and thus adversely affecting the combustion process.
• the flame protection device comprises deflector plates 11.
• the deflector plates 11 are arranged concentrically with respect to the central longitudinal axis 7, in particular with respect to the lamellae 9 in the drying drum 2.
• the deflector plates 11 are located in the flame zone of the drying drum 2.
• the deflector plates 11 enable a The material to be dried is conveyed along the material conveying direction 4.
• the deflectors 11 are designed in such a way that a material film is prevented from forming in the drying drum 2 during material conveyance. This means that when the drying drum 2 rotates about the axis of rotation 8, the material is held radially in the deflectors 11, and in particular, only axial material conveyance occurs along the material conveying direction 4. Specifically, the deflectors 11 reliably prevent the material from trickling downwards in the drying drum 2 due to gravity and forming a material film.
• both the throwing plates 11 themselves and the drying drum 2 are thermally protected from the burner flame 6 and/or the heat radiation emitted by the burner flame 6. This allows the material to cool the internal components and the drying drum 2.
• the blade plates 11 are fitted with lamella holders 12, which serve to hold the lamellae 9.
• the lamella holders 12 are attached to the blade plates 11.
• the lamella holders 12 extend, in particular, perpendicular to the central longitudinal axis 7 and, in particular, radially.
• the flame guard has a baffle 13.
• the baffle 13 is arranged axially spaced from the lamellae 9 along the central longitudinal axis 7.
• the baffle 13 is disc-shaped and, in particular, substantially circular, and is fastened in the drying drum 2 by at least one baffle mounting element 14.
• the baffle 13 prevents the burner flame 6 from unintentionally entering an area behind the
• the impact plate 13 penetrates the further throwing plate area of the drying drum 2.
• a material curtain is deliberately generated in this further throwing plate area.
• the impact plate 13 prevents material damage.
• a circumferential arrangement of the louvers 9 comprises eighteen individual louvers 9.
• the louvers 9 are functionally identical and, in particular, have identical dimensions. Depending on the size to be formed, i.e., the clear width of the circumferential arrangement, more or fewer than eighteen louvers 9 can be used to form a circumferential arrangement.
• circumferential assemblies are arranged one behind the other according to the illustrated embodiment. More or fewer than four circumferential assemblies can also be arranged one behind the other.
• the individual circumferential assemblies are, in particular, identical in design. It is also conceivable that the circumferential assemblies have different diameters and/or are at least partially conical.
• the louvers 9 each have a flame guard section 15 facing inwards, i.e., towards the burner flame 6.
• the flame guard section 15 has a rectangular contour with a length L and a width B.
• the length L of the louver 9 is greater than its width B.
• L ⁇ 1.2 x B, in particular L ⁇ 1.5 x B, in particular L ⁇ 2.0 x B, in particular L ⁇ 2.5 x B and in particular L ⁇ 10 x B.
• the louvers 9 are arranged side by side in the circumferential arrangement with respect to their longitudinal direction. In the circumferential arrangement, the louvers 9 are oriented with their longitudinal direction parallel to the central longitudinal axis 7.
• the lamellae 9 are made from material number 1.4841 from a sheet blank.
• the sheet thickness s is in particular in the range of 3 mm to 10 mm and especially between 5 mm and 7 mm.
• the lamella 9 has sealing elements 16, 17 integrally molded onto its longitudinal edges.
• the sealing elements 16, 17 are designed as chamfers.
• the sealing elements 16, 17 are arranged to correspond with each other.
• the sealing elements 16, 17 form lateral sealing elements on the lamella 9.
• the sealing elements 16, 17 form sealing strips.
• the sealing elements 16, 17 are designed such that the lamella 9 are arranged alternately with the sealing elements 16, 17 around the circumference.
• a first sealing element 16 essentially has an S-shaped contour.
• the S-contour extends, in particular, from the flame guard section 15 in a direction away from the burner flame 6.
• the first sealing element 16 forms a concave recess.
• the second sealing element 17 has a contour corresponding to a rounded arrowhead.
• the second sealing element 17 forms a convexly shaped projection.
• the convex outer contour of the second sealing element 17 corresponds to the concave inner contour of the first sealing element 16.
• the second sealing element 17 of a lamella 9 can be arranged on the first sealing element 16 of an adjacent lamella 9.
• This arrangement of adjacent lamellae 9 with the interlocking sealing elements 16, 17 is particularly advantageous in Fig. 4 and 6
• the corresponding sealing elements 16, 17 of adjacent lamellae 9 interlock, so that at most a thin air gap remains, which is in any case smaller than the sheet thickness s of the lamellae 9.
• the maximum gap width is at most 0.5 xs, in particular at most 0.3 xs, in particular at most 0.2 xs and in particular 0.1 x s.
• This thin gap between the adjacent lamellae 9 forms a circumferential gap seal.
• the gap width continues to decrease.
• the circumferential arrangement is self-supporting. This prevents the lamellae 9 from unintentionally separating from one another.
• the sealing elements 16, 17 ensure that the adjacent lamellae 9 interlock behind each other, making the circumferential arrangement stable in the radial direction with respect to the central longitudinal axis 7.
• the lamellae 9 have a front flange 18 at a transverse edge oriented in the width direction.
• the front flange 18 is inclined downwards at an angle relative to the plane formed by the flame protection section 15. This angle of inclination is at most 30°, in particular at most 20°, in particular at most 15°, and in particular at most 10°.
• the flange 18 functions as an insertion tab, which can be inserted, in particular, into the circumferential arrangement positioned in front of it.
• the lamellae 9 of the rearmost circumferential assembly are pushed under the respective lamella 9 of the circumferential assembly in front of it by means of the bend 18.
• This means that the bend 18 is located on the inner side of the circumferential assembly facing the burner flame 6.
• the bend 18 forms an axial gap seal between the circumferential assemblies arranged one behind the other along the central longitudinal axis 7.
• the circumferential assemblies have a high degree of tightness.
• the lamellae 9 arranged one behind the other along the central longitudinal axis 7 are aligned.
• Each lamella 9 is held by at least one lamella holder 19, and according to the illustrated embodiment, by two lamella holders 19.
• the lamella holder 19 is made from a flat sheet metal blank and has, in particular, a strip-like contour.
• the lamella holder 19 is, in particular, made of the same material as the lamella 9.
• the sheet thickness of the lamella holder is, in particular, between 8 mm and 15 mm, and, in particular, between 10 mm and 12 mm.
• the louver holder 19 has projections, in particular two retaining pins, which are arranged, in particular, on its end face.
• the retaining pins can engage in recesses 20, which are arranged on the flame-resistant section 15.
• the recesses 20 are, in particular, designed as punched holes.
• the louver 9 is, in particular, supported or placed on the louver holder 19.
• the recesses 20 serve as an assembly aid for the louver holder 19 of the louver 9.
• the louver 9 is detachably attached to the louver holder 19. This simplifies the assembly of the circumferential arrangement.
• the louver holders 19 can also be permanently attached to the louver 9, in particular by welding.
• At least one lamella 31 in each circumferential arrangement is designed differently with respect to the recesses 20.
• This lamella is referred to as the end lamella 31.
• the associated end lamella holders 32 for the end lamella 31 do not have protruding retaining pins, but rather a bent support tab 21, which is particularly Fig. 5 is shown.
• the circumferential arrangement is formed by arranging lamellae 9 adjacent to one another in a circumferential direction 10 and placing them on the respective lamella holders 19.
• the lamellae 19 are stabilized on the one hand by the interlocking sealing elements 16, 17 and on the other hand by the engagement of the retaining pins in the recesses 20.
• the final lamella 31 is inserted axially, i.e., in a direction parallel to the central longitudinal axis 7, and engages with the two adjacent lamellae 9.
• the sealing elements 16, 17 create an undercut in the radial direction. between adjacent lamellae 9 or 9, 31 is ensured.
• the last installed end lamella 31 is attached to the support lugs 21, in particular by welding.
• the lamellae 9 can be arranged in the drying drum 2 at a radial distance from an inner wall 22.
• the lamellae 9 form an assembly spaced from the inner wall 22 and aligned concentrically with the central longitudinal axis 7.
• the circumferential arrangement is essentially ring-shaped with a polygonal inner contour.
• the circumferential arrangement is rigidly connected to the drying drum 2. When the drying drum 2 rotates, the circumferential arrangement rotates with it.
• the deflecting plates 11 are arranged radially outwards in the radial direction with respect to the axis of rotation 8.
• the deflecting plates 11 are arranged on the inner wall 22 of the drying drum 2.
• retaining tabs 23 can be attached directly to the inner wall 22, in particular by welding.
• a mounting strip 24 is detachably attached to each of the retaining tabs 23, in particular by screwing.
• each throwing plate 11 is held by several, in particular three, mounting strips 24, wherein the mounting strips 24 are identical and arranged at intervals from each other along the central longitudinal axis 7.
• the mounting strips 24 each have a slot-shaped receptacle 25 into which the throwing plates 11 are inserted.
• the throwing plate 11 is scoop-shaped and has an L-shaped contour in a plane oriented perpendicular to the central longitudinal axis 7.
• the throwing plate 11 is arranged on the inner wall 22 of the drying drum 2 such that the short rib of the "L" extends substantially parallel to the inner wall 22 of the drying drum 2.
• “Substantially” means that the throwing plate 11 has no curvature at the inner wall 22 of the drying drum 2.
• the throwing plate 11 may be designed with bends.
• a material receiving chamber is formed between the throwing plate 11 and the inner wall 22 of the drying drum 2, which has an open rectangular contour in a plane perpendicular to the central longitudinal axis 7. The rectangle is open on one side opposite the short rib of the "L".
• the material receiving chamber is also open along the central longitudinal axis 7. It is possible that these end faces of the material receiving chamber are closed by separate cover elements 26. In particular, the end face of the material receiving chamber facing the material outlet of the drying drum 2 is closed by the cover element 26.
• the cover element 26 is attached to the deflector plate 11, in particular by welding.
• At least one deflector plate 11 is provided for each lamella 9.
• Corresponding lamellae 9 and deflector plates 11 are arranged in alignment in the radial direction with respect to the central longitudinal axis 7.
• deflector plate arrangements which are arranged concentrically to the respective circumferential arrangements of the lamellae 9
• two further rows of deflector plates 11 are provided. No lamellae 9 are attached to these deflector plates 11. These deflector plates are therefore arranged freely.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Architecture (AREA)
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• Combustion & Propulsion (AREA)
• Physics & Mathematics (AREA)
• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Microbiology (AREA)
• Sustainable Development (AREA)
• Drying Of Solid Materials (AREA)
• Road Paving Machines (AREA)
• Muffle Furnaces And Rotary Kilns (AREA)

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• 2022
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