EP1373818B1 - Verfahren und vorrichtung zum behandeln von schüttgut - Google Patents
Verfahren und vorrichtung zum behandeln von schüttgut Download PDFInfo
- Publication number
- EP1373818B1 EP1373818B1 EP02730030A EP02730030A EP1373818B1 EP 1373818 B1 EP1373818 B1 EP 1373818B1 EP 02730030 A EP02730030 A EP 02730030A EP 02730030 A EP02730030 A EP 02730030A EP 1373818 B1 EP1373818 B1 EP 1373818B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carrier plate
- layer
- grate
- support plate
- return stroke
- 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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- 238000001816 cooling Methods 0.000 claims description 16
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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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/26—Cooling of roasted, sintered, or agglomerated ores
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H11/00—Travelling-grates
- F23H11/18—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/10—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material
- F28C3/12—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material the heat-exchange medium being a particulate material and a gas, vapour, or liquid
- F28C3/16—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material the heat-exchange medium being a particulate material and a gas, vapour, or liquid the particulate material forming a bed, e.g. fluidised, on vibratory sieves
-
- 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
Definitions
- Another known type of grate makes use of a stationary, air-permeable support base, over which the material layer is moved by means of scratches moving continuously in the conveying direction or reciprocating thrust elements (EP-A-718 578, WO00 / 31483).
- a different type of radiator still uses a moving grate moving continuously in an endless loop (DE-A 1 953 415). In all cases, efforts are made to recover as much as possible of the heat transferred from the refrigerated goods to the cooling gas. Regardless of the type of radiator, the heat recovery has reached a relatively high level.
- the heat recovery succeeds in that a method for operating a Cooling grate according to claim 1 or a cooling grate according to claim 9 is used.
- a conveyor grate used which, in its entirety, is at a length of moved back and forth at least several meters, where the material layer is held during the return stroke so that the conveyor grate Slips back under the detained Gut harsh.
- the Hubfreguenz is very low in comparison with Schubrosten, namely under 20 per minute. This results in the Effect that essentially no vertical mixing the good layer takes place.
- the holding of the good layer during the return stroke of the rust happens by the fact that at the end of the task arranged in the region of the material layer a storage device is, against which the material layer starts on the return stroke. The between the storage device and the crop layer during the forward stroke The resulting gap is always immediately from the end of the task filled embankment stock of the estate.
- the low internal good movement is based on the fact that a relative movement essentially only between the bed of good and the support plate takes place, and only during the return stroke of the support plate.
- the improvement of heat recovery is based on the low vertical mixing of the good bed.
- gas flow From the bottom up the first one cools down in the material layer Good, while the one above Good a high temperature reserves.
- the conveying movement for that by vertical mixing of the chilled goods this assumes a mean temperature.
- Push-cart feeders known. These are to conveyors, mainly for dosing out of Bulk material from containers are used (DE-B-12 54 071). It was not to be suspected that the application of this principle to would lead to advantages in heat or mass transfer. On the contrary was the missing or very little mixing the Gutbettts perceived as a defect, because thereby the possibility that the good bed gains inner cohesion, the even discharge from the end of the conveyor in Question poses (DE-A-34 21 432).
- this supposed disadvantage because the cohesion of the layer is the breaking out of a part the layer under the jamming force acting on the return stroke difficult and thereby allows a larger Tragplattenin becomes.
- the stroke is not limited by the dimensions of the grate plates, as in the case of grate grates, it can be dimensioned considerably larger than is usual in the case of grate grates. This increases the conveying efficiency with simultaneously possibly lower stroke rate, which is less than 20, more preferably less than 15 and preferably on average less than 10 min -1 . It is usually about half the size of pushrods.
- the cooling grate according to the invention has the advantage of lower installation costs compared to a sliding grate, because the production and installation of a single grate plate of great length is much less expensive than that of a plurality of grate plates, although the movement and conveying principle of the grate according to the invention is similar to that of a single moving grate plate of a sliding grate, the operating behavior is fundamentally different and its advantages are surprising to those familiar with the characteristics of a sliding grate expert.
- the invention borders on such known methods from where the soil layer bearing the soil layer so moved quickly and possibly also with a vertical component (vibrates), that thereby also the good in a vertical relative motion of the particles promoting vibration device. Rather, the good layer during the Vorhubs and essentially resting on the grate during the return stroke. It is therefore easy to see that when using said Conveying principle the internal mixing of the material layer is much lower than in the previous for cooling grates used funding principles.
- the return stroke is expediently greater than the Vorhub Ukrainian, because only the Vorhub an effective Promotion caused.
- An important feature is the Use a return stroke acceleration greater than is the Vorhubbe instructung.
- the greater the return stroke acceleration The easier it is to break the adhesion between the support plate and the good bed and the smaller the accumulation force, which at the end of the task to hold the good layer the same must be applied.
- the adhesive solution acceleration is the acceleration at which the acceleration to the rear the good layer required force greater than the static friction and consequently the layer of return movement no longer follows. Nevertheless, the mass effect can be the solution the adhesion between good and support plate contribute to the return stroke. For example, it may be appropriate to the remindhubbeuggung to over one third of the acceleration of the detention solution to raise.
- the treatment gas is allowed to rust and flow through the material layer from bottom to top, because it the detention solution is facilitated. For one thing, it diminishes the bearing force of the good bed according to the pressure difference of the gas stream. On the other hand, the gas flow at the crossing from the support plate in the good bed a certain relaxation of Effect boundary layer. Because the relief of the detention solution while the re-acceleration phase is desired, it may be advantageous, the speed or the pressure of the treatment gas during the re-acceleration and / or during the total return stroke is greater than during the Advancing stroke.
- the support plate is opposite to the sides the housing sealed to the diarrhea of fines largely excluded. Important is such a seal in particular even if the treatment air with overpressure from stationary chambers below the grate into the openings of the bottom open grate is pressed so that the Side edges of the grate as little gas loss occurs.
- the task side Sealing is expediently of a the support plate overlapping and pressed on top of it Formed sealing plate. Due to the fact that the sealing plate on the Slides the top of the support plate substantially gap-free, the gas passage is excluded at this point kept low. By a yielding force, in particular a spring, the sealing plate can on top of the support plate be pressed. If instead of the gap freedom a smaller Gap can be tolerated, it is also possible that Sealing plate firmly at a short distance above the support plate assemble. Since there are high temperatures at the end of the task is It is useful, not only the support plate, but also the Seal plate permeable to air and with a gas flow to act on.
- a support plate has - compared to the grate plates of a Reciprocating grate - a very long length, namely at least several meters.
- the entire cooling grid can be of a uniform Be formed support plate. If there are reasons, limit the length of a support plate (for example, on the order of magnitude of 5 to 10 m) and a greater total length the grate is required, you can have several support plates arrange one after another, either with a common Stowage device cooperate at the end of the task or with one each be provided special associated storage device.
- the support plate is normally arranged approximately horizontally.
- the support plate can also be one in the conveying direction weakly rising or slightly falling arrangement selected become.
- An advantage of the invention is that by the diminished Gutsschi generated less dust and with the secondary air in the oven is performed as in known coolers. As a result, on the one hand the furnace operated more effectively be because the heat transfer between flame and kiln not reduced by dust, and sinks to the other the effort to dedust the exhaust air.
- Another advantage of the invention is that the entire Support surface for cooling air supply and cooling available stands, while with sliding grate coolers and push beam coolers inherently some area shares of the cooling air supply excluded are.
- an advantage of the invention is that the Layer height is not subject to the limitation that with conventional Coolers to note. A larger layer thickness favors the heat recovery.
- an advantage of the invention is that thanks the lack of inner Gutsterrorism the emergence liquid-like Conditions in a part of the estate less easily occurs. In known coolers, this phenomenon is therefore dreaded, because it causes a flow of fines, which is in liquid-like state, a substantial Part of the radiator length shoots practically uncooled. As the dumping of the estate of a rotary kiln with associated with a particle size separation, this phenomenon occurs mainly on the side of the radiator, on the basis of this separation with a larger fines content is to be expected.
- the rust used in the invention opens the possibility of passive or active precautions against the Occurrence of such unwanted movement easily flowing To seize material.
- Passive precautions exist in means that control the movement of the material on the grate in the conveying direction inhibit, for example, from the support plate towering Projections.
- projections are suitable, which themselves mainly transverse to the conveying direction in the form of walls or Bars or the like extend. Since the mentioned material flow predominantly occurs in the edge region of the grate can Such flow obstacles also from the side wall in the Good bed project. Protruding from a stationary side wall Flow barriers are particularly useful when placed above the normal layer height are and therefore shooting through a material flow then prevent this from happening on the surface of the support plate already resting layer takes place.
- Active precautions can be taken by such flow obstacles be formed from case to case from the support plate or the moving or stationary side wall from an inactive one Position out into the area of the material flow to be prevented be moved to an active position and then again can be withdrawn. You can always do more or protrude less far into the layer, with the width their intervention, i. their height or length, depending on the particular Condition of the bed is controlled.
- the reliable conveying operation depends on the fact that the good bed taken during the Vorhubs the support plate of this is and the support plate during the return stroke under the Good bed slides.
- the entrainment of the Gutbettts the Vorhub becomes caused by the friction between the good bed and the support plate.
- the sliding of the support plate relative to the bed of good during the Return strokes depend on the frictional engagement between the good bed and the support plate overcome by opposing forces becomes.
- these counteracting forces belongs primarily the congestion resistance, the at the end of the task in the field of Gut Schweizer arranged accumulation device exerts. It may be appropriate be to provide other facilities as well exert a resistance to the material layer when the support plate moving back, or in this phase of movement reduce the frictional engagement between the bed of good and the support plate.
- means for increasing the in the support plate or from the bottom on the material layer acting gas pressure during the return stroke compared to the forward stroke provided be.
- the invention provides the possibility, with the support plate To provide connected members, the less on the return stroke (preferably not at all) and at the forward stroke stronger in intervene the good bed.
- the resistance to movement, the good bed on the return stroke can also be increased be that the support plate with the Gutbett narrowing side walls is provided whose clear distance in the conveying direction increases or narrows in the opposite direction. If these side walls are connected to the support plate, reduce the frictional engagement between the good bed and the Walls during the return stroke of the support plate.
- the invention provides the Possibility to use a Schicht Berlinnbesky.
- The is a wall at the beginning of the conveyor above the support plate is arranged and whose lower edge a distance from the support plate has, the desired thickness of the Gutbettts equivalent.
- the cooler for kiln which is arranged in a housing 1, e.g. Cement clinker comprises a section designed according to the invention 6.
- This is an inlet section in the case shown upstream, which is below the through his 3 indicated shaft, in which the of Oven coming Good in the sense of arrow 4 is dropped. It reaches an embankment 5, located on the preferably inclined surface 2 of the inlet section forms.
- the area 2 may be conventional, e.g. from exposed to cooling air, stationary or partially moving grate plates consist.
- the inclination the surface 2 is suitably chosen so that on the one hand lingers on her cool good, which she before the immediate Influence of the hot coming from the furnace property protects, and that on the other hand, larger pieces of property due to their gradient to move on.
- the radiator section 6 is mainly formed by a support plate 10.
- This consists for example of a framework 11 with applied, adjoining metal sheets 12, which may be covered with a hard layer 13 as wear protection.
- the support plate rests on a swing frame 14 which is movably mounted on rollers 15 in the conveying direction 16.
- a hydraulic drive 17 puts it in reciprocating motion, preferably with an amplitude of 10 to 80 cm, more preferably 30 to 50 cm, and a frequency of normally 5 to 10 min -1 , which is expediently dependent on the thickness of the support plate 10 located Gutbettts 20 is regulated and can rise in abnormally strong Gutanfall until, for example, 30 min -1 .
- the layer thickness of the Guts is for example 50 to 200 cm.
- the metal sheets 12 of the support plate 10 contain evenly distributed Lucas manuloselitze 21, after the grate plates known principles can be designed (see, for example EP-A-811 818). You can use bags 22 to catch of fines blown off when the air flow is shut off be included in the then resumed Operation entrained by the air flow and returned to the material layer becomes.
- the support plate 10 can also be used as a cover plate of a closed Be formed box, the cooling air by flexible Hoses or the like supplied to the box interior becomes. As it is known by Schubrosten, individual sections the support plate 10 separately and optionally with be subjected to different pressure.
- the side edges of the support plate 10 are opposite the adjacent Housing wall 25 of FIG. 3 by a not closer illustrated seal 26 sealed. This prevents the Diarrhea of fines and, if necessary, the passage of Cooling air.
- the Gut Mrs 20 At the task-side end of the support plate 10 is in the height range the Gut Mrs 20 a baffle plate 30 is arranged. She can just before the support plate or be provided over this.
- the Support plate takes during her Vorhubs lying on her Good with. This creates at the foot of the slope 5 a gap in the Good für 20, which immediately with the out of the embankment. 5 replenishing good fills.
- the material layer adheres 20 first on the support plate until it is on the baffle plate 30 jams. Once the jamming force between the friction Good layer 20 and support plate 10 exceeds, the material layer remains stand while the support plate 10 continues under it moved back. So that the stowage facility this function does not necessarily have to have a plate shape.
- the dynamic pressure can also by the down to the level of the support plate embankment. 5 to a farther from the support plate 10 lying Power receiving surface to be forwarded.
- This force receiving surface can for example be formed by the surface 2 or wall 3 be, which are then pulled down accordingly deep.
- a sealing plate 32nd provided, whose pointing in the conveying direction 16 end on the Top of the support plate 10 rests.
- the other end of the Sealing plate 32 is pivotally mounted at 33 and not in illustrated wise tightly connected to the baffle plate 30.
- a spring 34 presses the sealing plate 30 essentially gap-free on the support plate 10th
- the discharge-side end of the support plate 10 is suitably also sealed against the stationary equipment, for example, by a gap-free to the support plate underside applying, not shown spring steel strip.
- the bottom up blowing of air into the Good layer 20 reduces the bearing pressure due to its back pressure the soil layer and relaxes its lowest area little on.
- the friction between the material layer and the support plate is therefore lower than for pushcarriages, and the Conveyor length can be correspondingly larger.
- the Reverse acceleration used at the transition from forward to return stroke be to the solution of adhering to the support plate Good facilitate.
- the surface of the support plate is designed appropriately so that the lowest possible friction against the good becomes. However, it may be especially in the beginning of the Support plate should be useful to choose a surface shape that This causes that cool material as a protective layer under the above lying hot good is held.
- the effect of the transverse ribs is that Good in the hollows formed between the ribs is noted that the support plate before the immediate Exposure to hot material and protects against wear. such Need to hold a cool Gutstik not to cover the entire surface of the support plate, but can be confined to those areas in otherwise with particularly high stress on the support plate would have to be expected. You can also change shape provided that it is suitable for holding the property.
- a significant advantage of the cooler according to the invention exists in that the estate is spared. He is therefore suitable also for sensitive goods such as Expanded clay. Further has he has the advantage that lighter than in rust types, in which an internal Gutiolo takes place, a uniform air distribution can be achieved.
- the compressed air supply by means of the blower 35 to the chamber 23 is controlled so that the pressure during the return stroke is greater than during the Advancing stroke. Thereby, the friction of the crop bed 20 at the Support plate 20 reduced. It is a lower energy consumption necessary to retract the support plate under the bed 20.
- the lagging of the good bed compared to the retreating Support plate can also be promoted by the Good bed is bordered laterally by stationary walls 36 whose Inner surfaces by an angle 37 with respect to the direction of movement the support plate 10 are inclined in opposite directions, that their distance widens in the conveying direction.
- the support plate 10 tend to the support plate during the return movement to follow, it is through the inner surfaces of the walls 36 is increasing concentrated, which in addition to the congestion resistance the end face 30 a restraining force on the good bed 20th is exercised.
- the walls 36 When the walls 36 are connected to the support plate and move with it, the walls reinforce it Friction with the good during the Vorhubs.
- Retaining devices 38 may be provided, of which only one indicated in Fig. 7. It refers to Sliders or flaps or the like, by means of a drive 39 are controlled so that they during the return stroke the support plate 10 protrude into the bed 20 to this while holding the support plate during the forward stroke 10 are withdrawn.
- Such retention devices can also from above or through the support plate 10 through act down on the good bed 20.
- a similar retainer 40 is arranged with drive 41 in the support plate. She moves back and forth with the support plate. During the Vorhubs the support plate protrudes the retainer 40 in the good bed in to take it with the support plate. On the return stroke of the support plate, it is withdrawn from the Gutbett, about the relative movement between the good bed and the support plate not to hinder. Of the retainers 38, 40 can take a large number appropriately along the course of the Gutbettts be distributed.
- stationary beam 45 is provided which a return movement of the Gutbedts together with the support plate 10 during their return stroke inhibit.
- Its cross section is preferably chosen so that the inhibition of the good movement in the return direction is stronger as in the conveying direction.
- they have a triangular shape in the opposite direction pointing tip and they are at close range arranged above the support plate 10.
- FIG. 6 illustrates a layer height limiter 42 which as a fixed or height-adjustable wall in the radiator housing 1 is arranged. Its lower edge 43 determines the maximum Height of the crop bed 20. Towards the wall 42, a buffer space is formed in which the slope 5 at temporarily builds up a buffer volume.
- the distance of serving as Schichthöbenbesky wall 42 of the baffle plate 30 should be smaller be as the height of the lower edge 43 of the wall 42 above the Support plate 10.
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
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Description
- Fig. 1
- eine schematische Seitenansicht,
- Fig. 2
- eine Teilansicht in größerem Maßstab,
- Fig. 3
- einen Teilschnitt der Seitenabdichtung,
- Fig. 4
- eine Ausführung mit mehreren hintereinander geschalteten Tragplatten,
- Fig. 5
- einen schematischen Längsschnitt einer Ausführungsvariante bei der die Tragplatte mit Querrippen versehen ist,
- Fig. 6
- einen schematischen Längs-Vertikalschnitt,
- Fig. 7
- einen schematischen Horizontalschnitt und
- Fig. 8
- eine weitere Ausführungsvariante im Längsschnitt.
Claims (37)
- Verfahren zum Behandeln, insbesondere zum Kühlen, einer auf einem Förderrost (10) liegenden Schüttgutschicht (20) mittels eines durch den Rost und die Gutschicht geführten Gasstroms, dadurch gekennzeichnet, daß der von einer Tragplatte mit einer Länge von mindestens mehreren Metern gebildete Förderrost (10) in seiner Gesamtheit vor- und zurückbewegt wird, wobei die Gutschicht (20) während des Rückhubs festgehalten wird, so daß der Förderrost (10) unter der Gutschicht (20) zurückgleitet, und die Hubfrequenz geringer als 20 min-1 ist, so daß im wesentlichen keine vertikale Durchmischung der Gutschicht stattfindet.
- Verfahren nach Anspruch 1 , dadurch gekennzeichnet, daß die Rückhubgeschwindigkeit größer als die Vorhubgeschwindigkeit ist.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Rückhubbeschleunigung größer als die Vorhubbeschleunigung ist.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Rückhubbeschleunigung geringer als die Haftlösungsbeschleunigung ist.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Rückhubbeschleunigung ein Drittel der Haftlösungsbeschleunigung überschreitet.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Gasstrom von unten nach oben gerichtet ist.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß die Gasgeschwindigkeit bzw. der am Rost wirkende Druck während der Rückhubbeschleunigung größer ist als während des Vorhubs.
- Vorrichtung zum Behandeln, insbesondere Kühlen, von Schüttgut mit einem Gas, die einen eine Schicht (20) des Schüttguts von einem Aufgabeende zu einem Abgabeende fördernden Rost (10) aufweist, der Gasdurchgangsöffnungen aufweist und mit Mitteln zum Erzeugen eines den Rost (10) und die Gutschicht (20) durchquerenden Gasstroms verbunden ist, dadurch gekennzeichnet, daß der Rost (10) von einer in ihrer Gesamtheit in Förderrichtung vor- und zurückbewegten Tragplatte (10) gebildet ist, die eine Länge von mehreren Metern aufweist und an deren Aufgabeende eine Einrichtung (30) zum Stauen der Gutschicht bei der Rückbewegung der unter der Gutschicht (20) zurückgleitenden Tragplatte (10) vorgesehen ist.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Staueinrichtung von einer stationären Staufläche (30) gebildet ist.
- Vorrichtung nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß die Tragplatte (10) an den Seiten gegenüber einem Gehäuse (25) abgedichtet ist.
- Vorrichtung nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, daß die Tragplatte (10) mit mitbewegten Seitenwänden versehen ist.
- Vorrichtung nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, daß die Tragplatte (10) frei von mitbewegten Seitenwänden ist.
- Vorrichtung nach einem der Ansprüche 8 bis 12, dadurch gekennzeichnet, daß die Tragplatte (10) am Aufgabeende und/oder Abgabeende gegenüber stationären Bauteilen abgedichtet ist.
- Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß die am Aufgabeende vorgesehene Abdichtung von einer die Tragplatte (10) überlappenden und nachgebend auf deren Oberseite gedrückten Dichtplatte (32) gebildet ist.
- Verfahren nach Anspruch 14, dadurch gekennzeichnet, daß die Dichtplatte (32) luftdurchlässig und von einem Gasstrom beaufschlagt ist.
- Vorrichtung nach einem der Ansprüche 8 bis 15, dadurch gekennzeichnet, daß der Gasstrom von unten nach oben gerichtet ist.
- Vorrichtung nach einem der Ansprüche 8 bis 16, dadurch gekennzeichnet, daß mehrere Tragplatten (10) mit einer gemeinsamen Staueinrichtung (30) am Aufgabeende vorgesehen sind.
- Vorrichtung nach einem der Ansprüche 8 bis 16, dadurch gekennzeichnet, daß mehrere Tragplatten (10) oder Gruppen von Tragplatten mit je einer Staueinrichtung (30) hintereinander angeordnet sind.
- Vorrichtung nach einem der Ansprüche 8 bis 18, dadurch gekennzeichnet, daß die Tragplatte mit Einrichtungen zum Festhalten einer im Verhältnis zur Höhe des Gutbetts dünnen Gutschicht ausgerüstet ist.
- Vorrichtung nach Anspruch 19, dadurch gekennzeichnet, daß die Einrichtungen von Rippen und/oder Mulden gebildet sind.
- Vorrichtung nach einem der Ansprüche 8 bis 19, dadurch gekennzeichnet, daß Mittel zum Hemmen des Materialstroms vorgesehen sind.
- Vorrichtung nach Anspruch 21, dadurch gekennzeichnet, daß die Mittel zum Hemmen des Materialstroms im Randbereich des Rosts vorgesehen sind.
- Vorrichtung nach Anspruch 21 oder 22, dadurch gekennzeichnet, daß die Mittel zum Hemmen des Materialflusses mit der Tragplatte fest verbunden sind.
- Vorrichtung nach einem der Ansprüche 21 bis 23, dadurch gekennzeichnet, daß die Mittel zum Hemmen des Materialflusses beweglich sind.
- Vorrichtung nach Anspruch 23, dadurch gekennzeichnet, daß eine Steuereinrichtung zum Bewegen der Mittel zum Hemmen des Materialflusses abhängig vom Zustand des Gutbetts vorgesehen ist.
- Vorrichtung nach einem der Ansprüche 8 bis 24, dadurch gekennzeichnet, daß Mittel zum Herabsetzen des Reibschlusses zwischen dem Gutbett (20) und der Tragplatte (10) beim Rückhub im Vergleich zum Vorhub vorgesehen sind.
- Vorrichtung nach Anspruch 25, dadurch gekennzeichnet, daß eine Einrichtung zum Erhöhen des in der Tragplatte (10) wirkenden Gasdrucks beim Rückhub im Vergleich zum Vorhub vorgesehen ist.
- Vorrichtung nach Anspruch 25, dadurch gekennzeichnet, daß mit der Tragplatte (10) verbundene, beim Rückhub weniger und beim Vorhub stärker in das Gutbett (20) eingreifende Halteglieder (40) vorgesehen sind.
- Vorrichtung nach einem der Ansprüche 8 bis 25, dadurch gekennzeichnet, daß zwei stationäre oder gemeinsam mit der Tragplatte (10) bewegte, das Gutbett (20) eingrenzende Seitenwände vorgesehen sind, deren lichter Abstand in Förderrichtung sich vergrößert.
- Vorrichtung nach einem der Ansprüche 8 bis 28, dadurch gekennzeichnet, daß Mittel zum Erhöhen des Reibschlusses zwischen dem Gutbett (20) und stationären Teilen der Vorrichtung während des Rückhubs im Vergleich mit dem Vorhub vorgesehen sind.
- Vorrichtung nach Anspruch 29, dadurch gekennzeichnet, daß mit der fest stehenden Struktur (36) der Vorrichtung verbundene, beim Rückhub stärker und beim Vorhub weniger in das Gutbett (20) eingreifende Halteglieder (38) vorgesehen sind.
- Vorrichtung nach Anspruch 30, dadurch gekennzeichnet, daß ein das Gutbett (20) seitlich einfassendes Wandpaar (36) vorgesehen ist, dessen lichter Abstand sich in Förderrichtung vergrößert.
- Vorrichtung nach einem der Ansprüche 8 bis 31, dadurch gekennzeichnet, daß am Aufgabeende ein Schichthöhenbegrenzer (42, 43) vorgesehen ist.
- Vorrichtung nach einem der Ansprüche 1 bis 32, dadurch gekennzeichnet, daß oberhalb der Tragplatte (10) in einer Höhe, die geringer ist als die für das Gutbett (20) vorgesehene Höhe, mindestens ein Querbalken (45) in Abstand vom Aufgabeende und vom Abgabeende vorgesehen ist.
- Vorrichtung nach Anspruch 34, dadurch gekennzeichnet, daß der Balken (45) den Materialfluß in Förderrichtung einen geringeren Widerstand entgegensetzt als in der Gegenrichtung.
- Vorrichtung nach Anspruch 34 und 35, dadurch gekennzeichnet, daß der Balken (45) näher der Tragplatte (10) als der für das Gutbett vorgesehenen Höhe angeordnet ist.
- Vorrichtung nach einem der Ansprüche 34 bis 36, dadurch gekennzeichnet, daß der mindestens eine Balken (45) ein flaches Dreiecksprofil mit entgegen der Förderrichtung weisender Spitze aufweist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK02730030T DK1373818T3 (da) | 2001-03-20 | 2002-03-19 | Fremgangsmåde og anordning til behandling af massegods |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10113516A DE10113516A1 (de) | 2001-03-20 | 2001-03-20 | Verfahren und Vorrichtung zum Behandeln von Schüttgut |
DE10113516 | 2001-03-20 | ||
PCT/EP2002/003042 WO2002075230A1 (de) | 2001-03-20 | 2002-03-19 | Verfahren und vorrichtung zum behandeln von schüttgut |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1373818A1 EP1373818A1 (de) | 2004-01-02 |
EP1373818B1 true EP1373818B1 (de) | 2005-05-18 |
Family
ID=7678228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02730030A Expired - Lifetime EP1373818B1 (de) | 2001-03-20 | 2002-03-19 | Verfahren und vorrichtung zum behandeln von schüttgut |
Country Status (4)
Country | Link |
---|---|
US (1) | US6926521B2 (de) |
EP (1) | EP1373818B1 (de) |
DE (2) | DE10113516A1 (de) |
WO (1) | WO2002075230A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010055825A1 (de) | 2010-12-23 | 2012-06-28 | Khd Humboldt Wedag Gmbh | Verfahren zum Kühlen von heißem Schüttgut und Kühler |
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DE10047269B4 (de) * | 2000-09-23 | 2005-02-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und Vorrichtung zur Überprüfung der Trocknungsergebnisse in einem aus einem Trocknungsprozess kommenden Schüttgut |
EP1475594A1 (de) | 2003-05-08 | 2004-11-10 | Claudius Peters Technologies GmbH | Verfahren und Vorrichtung zum Förderen einer Schüttgutschicht auf einem Rost |
DE202004020573U1 (de) | 2003-05-08 | 2005-08-04 | Claudius Peters Technologies Gmbh | Anordnung bestehend aus einem Brennofen und einer diesem nachgeschalteten Vorrichtung zum Kühlen eines Schüttguts mit einem Gas |
DK176663B1 (da) * | 2004-07-02 | 2009-02-09 | Smidth As F L | Fremgangsmåde og köler til afköling af varmt partikelformet materiale |
WO2006040610A1 (en) * | 2004-10-13 | 2006-04-20 | F.L. Smidth A/S | Cooler for cooling hot particulate material |
DE102005032518B4 (de) * | 2005-07-12 | 2017-10-19 | Thyssenkrupp Industrial Solutions Ag | Verfahren und Vorrichtung zum Kühlen von Schüttgut |
DE102007019530C5 (de) * | 2007-04-25 | 2018-01-04 | Alite Gmbh | Verfahren und Einrichtung zum Kühlen einer auf einem Förderrost liegenden Schüttgutschicht |
US7871499B2 (en) * | 2007-10-29 | 2011-01-18 | Simeken, Inc. | Retort oven with adjustable floor |
DE102011080769A1 (de) * | 2011-08-10 | 2013-02-14 | Mall + Herlan Gmbh | Effektive Produktionslinie für Aerosoldosen |
CN103776268B (zh) * | 2013-12-30 | 2015-09-30 | 内蒙古蒙西鄂尔多斯铝业有限公司 | 一种粉煤灰氧化铝熟料高温冷却设备 |
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AT182668B (de) * | 1953-09-15 | 1955-07-25 | Walter Dipl Ing Poech | Vorrichtung zum Vorwärmen, Trocknen und Entsäuern des einem Drehofen zuzuführenden Gutes |
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DE1953415B2 (de) * | 1969-10-23 | 1974-03-07 | Polysius Ag, 4723 Neubeckum | Wanderrost zum Kühlen von heißem Gut |
GB2077243B (en) | 1980-05-19 | 1984-09-19 | Diemoulders Pty Ltd | Taphole closures |
JPS577226A (en) * | 1980-06-17 | 1982-01-14 | Babcock Hitachi Kk | Apparatus for decomposing malodorant gas and recovering waste heat |
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FR2528806A1 (fr) | 1982-06-21 | 1983-12-23 | Bernhardt Cie | Dispositif de support d'organe de vidange fractionnee, destine a equiper un conteneur de liquide, en particulier du type a caisse de carton et poche interieure etanche, et conteneur equipe d'un tel dispositif |
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DK154692D0 (da) * | 1992-12-23 | 1992-12-23 | Smidth & Co As F L | Fremgangsmaade og koeler til afkoeling af partikelformet materiale |
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DK199801550A (da) * | 1998-11-25 | 2000-05-26 | Smidth & Co As F L | Køler til afkøling af partikelformet materiale |
-
2001
- 2001-03-20 DE DE10113516A patent/DE10113516A1/de not_active Withdrawn
-
2002
- 2002-03-19 EP EP02730030A patent/EP1373818B1/de not_active Expired - Lifetime
- 2002-03-19 DE DE50203146T patent/DE50203146D1/de not_active Expired - Lifetime
- 2002-03-19 WO PCT/EP2002/003042 patent/WO2002075230A1/de not_active Application Discontinuation
- 2002-03-19 US US10/472,722 patent/US6926521B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010055825A1 (de) | 2010-12-23 | 2012-06-28 | Khd Humboldt Wedag Gmbh | Verfahren zum Kühlen von heißem Schüttgut und Kühler |
WO2012084608A1 (de) | 2010-12-23 | 2012-06-28 | Khd Humboldt Wedag Gmbh | VERFAHREN ZUM KÜHLEN VON HEIßEM SCHÜTTGUT UND KÜHLER |
DE102010055825B4 (de) | 2010-12-23 | 2013-07-04 | Khd Humboldt Wedag Gmbh | Verfahren zum Kühlen von heißem Schüttgut und Kühler |
DE102010055825C5 (de) * | 2010-12-23 | 2017-05-24 | Khd Humboldt Wedag Gmbh | Verfahren zum Kühlen von heißem Schüttgut und Kühler |
Also Published As
Publication number | Publication date |
---|---|
US6926521B2 (en) | 2005-08-09 |
DE10113516A1 (de) | 2002-09-26 |
DE50203146D1 (de) | 2005-06-23 |
WO2002075230A1 (de) | 2002-09-26 |
EP1373818A1 (de) | 2004-01-02 |
US20040115581A1 (en) | 2004-06-17 |
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