EP2841860A2 - Système pour le traitement thermique d'un substrat humide pourvu d'un arbre centrifuge et procédé de mise en uvre associé - Google Patents

Système pour le traitement thermique d'un substrat humide pourvu d'un arbre centrifuge et procédé de mise en uvre associé

Info

Publication number
EP2841860A2
EP2841860A2 EP13723441.5A EP13723441A EP2841860A2 EP 2841860 A2 EP2841860 A2 EP 2841860A2 EP 13723441 A EP13723441 A EP 13723441A EP 2841860 A2 EP2841860 A2 EP 2841860A2
Authority
EP
European Patent Office
Prior art keywords
substrate
drying
air
dryer
heat
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.)
Withdrawn
Application number
EP13723441.5A
Other languages
German (de)
English (en)
Inventor
Michael GEISINGER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CH00585/12A external-priority patent/CH706449A2/de
Priority claimed from CH00586/12A external-priority patent/CH706450A2/de
Priority claimed from CH01052/12A external-priority patent/CH706735A2/de
Application filed by Individual filed Critical Individual
Publication of EP2841860A2 publication Critical patent/EP2841860A2/fr
Withdrawn legal-status Critical Current

Links

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
    • F26B11/12—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices
    • F26B11/16—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices the stirring device moving in a vertical or steeply-inclined plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/24—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by shooting or throwing the materials, e.g. after which the materials are subject to impact
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/001—Heating arrangements using waste heat
    • F26B23/002—Heating arrangements using waste heat recovered from dryer exhaust gases
    • 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
    • F26B25/001—Handling, e.g. loading or unloading arrangements
    • F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/18—Sludges, e.g. sewage, waste, industrial processes, cooling towers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • the present invention relates to a device for the thermal treatment of a moisturizing substrate according to the preamble of claim 1.
  • the invention also relates to a method for the thermal treatment of a moist substrate according to the preamble of claim 11.
  • the moist substrate may also be a solution or suspension containing dry matter.
  • the housing referred to below may be a housing accommodating the device or else a housing accommodating the spinning shaft with a drying space.
  • various methods use the method of returning some of the dried material to the drying process to reduce the relative humidity of the resulting mixture.
  • spin-wave dryers in which rotating blade waves throw up the material and thus create the optimum conditions for convection drying.
  • the same method can also be applied on the one hand to the drying of any, even for non-sticky materials, on the other hand, on the other extreme of the extremes, on liquids, such as bark and Gaerreste from biogas plants.
  • the principles outlined therein can also be applied to any material.
  • the core of the process is that already dry material is in the dryer, either because - in the case of a portion drying - only part of the material removed and another part is left in it, either because - in the case of a passage drying, as shown for example in drawing 1 - the regulation is designed accordingly.
  • This eliminates the need to mix damp and dry material in front of the dryer and eliminates the need to return the dry material after the dryer, back to the dryer or to a mixer in front of it.
  • the invention can be implemented with any spin dryer.
  • the drawing 1 shows a device particularly suitable for this purpose and relates to the drying of sewage sludge, but can be used in this way and analogously for all other applications. It takes up elements from the patent applications 259/12 and 585/12 and develops them further.
  • the sewage sludge comes from the outlet of the centrifuge (a), where it has been brought from a liquid to a muddy consistency, and falls directly into the drier's supply hopper (b).
  • the hopper is provided at the dryer opposite end with an outlet, which allows, if necessary, by reversing the rotary Direction of the screw, the container relatively easy to empty.
  • at least one of the side walls can be made removable or hinged for this purpose.
  • the sludge centrifuge Since the dryer can stand even once, either for maintenance or other reasons, the sludge centrifuge is however inexhaustible, or if, for some other reason, the centrifuge is conveying more sludge than the drier can take up and dry, is under the supply hopper (B) a conveyor device (c) attached, which receives the Klaerschlamm sometime overflowing when the dryer is stopped and promotes in a corresponding buffer storage device.
  • This conveyor device can run continuously, or be turned on automatically when material hits it. If the interruption lasts longer, the ejection of the centrifuge (a) can be made pivotable and the material can be conveyed into containers, which can then be charged and removed.
  • the material travels from the inlet (s), along the spinner shaft, to the outlet (g), which is regulated by a controlled extraction - here represented in the form of a screw conveyor. So not only the residence time of the material can be regulated, but - in the present case particularly important - the amount of material in the dryer.
  • the sewage sludge can be introduced in several places in small doses.
  • the material inlet (e) is not quite attached to the edge of the dryer, but rather a long way behind so that the introduced wet material mixes with dry material from both sides.
  • the screw conveyor runs continuously during the filling phase, or the filling phase is divided into intervals.
  • the moist material mixes because of the dry and the risk of lumping is reduced.
  • the mixing effect can be influenced by the number and size of the throwing blades, as well as by the geometry of the throwing blades.
  • a triangular blade can still enhance the effect already given in the arrangement of individual blades, that the material is conveyed by the upward movement of the blades, not only upwards but also to the side.
  • the material can be thrown up turbulently along the entire route, or increasingly homogeneously thrown up on the way through the drying, the closer it approaches the ejection (g).
  • the geometry of the spinning shaft can be used by, for example, no longer individual blades in the rear, the material aufwerden, but continuous strips, as shown in the drawing 1 also.
  • Klaerschlamm is a very sticky material
  • the mixture ratio is also a special one. According to the invention, a relatively dry mixture is run through the dryer, which moves by 85% dry matter content (TS). This mixture has proven itself in municipal Klaerschlaemmen. If a final moisture of 90% TS is to be achieved, the input mixture will have approx. 80% DM.
  • the values may vary depending on the sewage sludge, but especially for municipal sewage sludge a mixture is used that is clearly above a 50:50 dry / wet mixture and has a TS content of at least 65-70%.
  • a mixture is used that is clearly above a 50:50 dry / wet mixture and has a TS content of at least 65-70%.
  • One that offers itself is to watch the temperature in the dryer. If moist material is introduced (e), the temperature in the dryer drops. Once it has mixed with the surrounding dry or dry material and begins to dry itself, the temperature starts to rise again.
  • the material entry can be controlled relatively easily via an upper temperature limit, which starts the filling and a lower temperature limit, which stops the filling.
  • the temperature values can be adjusted dynamically to the fluctuating inlet temperature of the drying air. Since the mixture is relatively dry and by the Nach Schouellen relatively little wetter, the drying temperature will be higher at the inlet temperature than other processes. For the control, a single temperature probe suffices when the air exits the drying chamber. A series of temperature probes along the material path - in Figure 1 this corresponds along the spin shaft (f) - even allows automated flexible response to changing inlet moisture of the material.
  • the air heated with it single stream, or - as described in the patent applications 259/12 and 585/12 - are divided into several air trains in the dryer, each of which heat a separate segment.
  • These segments can be open, in that a pair of ventilators in each case blows in and out of the given draft, in a given area the path of the material through the dryer.
  • These segments can also be separated by a partition, or in extreme cases even distributed to several dryer units.
  • the introduction of the air can be introduced laterally from both the one and the other side of the spinning shaft (s) according to a method described in the patent applications 259/12 and 585/12, as well as the possibility exists, the air forehead and To introduce the axle side of the shaft.
  • This frontal and the aft side can also Luftwroeme be introduced from different sources of energy, in extreme cases, heated from one side and from the other side only to be cooled.
  • the drying chamber fitted with the centrifugal shaft, for example in a ventilated conveyor screw. If a segment conveyor screw is used, the material is not only conveyed, but additionally mixed.
  • the drying chamber itself can be used for cooling, either because according to the principle described above of one of the selected segments with fresh, unheated, or even cooled ambient air is leaking, either because in a segment, or over the entire drying chamber the burner is switched on and off while the fresh air fan is passing through.
  • the removal of material can - as described in the patent application 585/12 - over the wave load can be controlled. It may be useful to carry out the removal in each case after a filling interval, so that the wet material meets as much as possible dry or pre-dried material. Although the basic advantage of this device is that backmixing is not required, it does not mean that it is closed. A possible execution of such a Materialrueckfuehrung (h) is shown in the drawing 1. Thus, a drying according to the classical principle, the return and the mixing of the materials before or in the dryer is conceivable.
  • this may mean that the material recycling is used for repeated heating and cooling the material. Transferred to the drawing 1 this could mean that the left half is heated and the right half is just chilled.
  • This constellation in which the material circulates in the spin dryer, is also conceivable with a different combination of energy sources and Heilzuegen.
  • the process described in this patent is suitable not only for sewage sludge and other very humid materials, but also for processing liquid solutions into powder, in a spin dryer as described here, or any other spin dryer.
  • the liquid is introduced into the spin dryer, by any suitable method, which wets dry or pre-dried material in the dryer and then dried again. This is of particular interest to Guelle and Geraldae, but is not limited to these materials.
  • a heat recovery can improve the energy efficiency. Since the drying of liquid solutions is particularly energy-intensive, the possibility should be mentioned at this point not only to produce the heat directly, via a fuel, or to use any available Abwaermeuzen, but also renewable energy sources, such as sun, heat, wind energy, or other use. Solar and wind energy can also be used to generate the necessary mechanical energy for moving the spinning shaft (s), the fan and other consumers. In the case of solar, wind and other energy sources, the temperature level available for drying may vary. In the case of materials such as bark or gore residues, or in other materials where a certain degree of sanitization is desired, the material is already sanitized in the course of the drying process at sufficiently high temperatures.
  • the drying material At entry temperatures of the drying air in the middle temperature segment, the drying material will not reach the temperature required for the sanitation until the end. In this case, it is worthwhile to connect the dryer with an insulated, or even heated buffer tank, in which it is kept at the level of the outlet temperature for a while, so that the desired sanitation occurs.
  • the material At inlet temperatures in the low temperature segment, the material is dried, but never reaches the temperature necessary for the hygienization. In this case, for portion driers, the drying phase, with continuous dryers in each case in the last segment, the material is reheated with an additional energy source.
  • the drawing 3 represents a portion dryer.
  • a Zellradschleusen-like device was selected, which extends over a portion or over the entire length of the spinning shaft, the rotational movement empties the dryer.
  • the amount of material can be relatively easily regulated by the wave load. The timing of emptying the dryer as well, possibly in combination with moisture control.
  • This operating mode not only refers to the described dryer devices, but to each spin dryer, which is used for this type of drying process.
  • An alternative to the rotary valve may be a conveyor screw.
  • various small technical supplements are shown.
  • the throwing blades have different angles of incidence so that it is possible to achieve different throwing directions.
  • air intake devices (y) were attached to the centrifugal shaft and, thanks to a suitable geometry, which is not more closely defined here, the effect that the rotational movement
  • the aim of the spinning shaft is to draw the air escaping from the air inlet (m) into the shaft, but also into the material eyelid described by the throw motion, which promotes the mixing of drying air and material.
  • the feeders (y) may be individual elements attached to the blades or devices mounted over the entire length of the spinning shaft.
  • the air inlet (m) is mounted relatively close to the material after it is thrown in the desired direction by a directional baffle (k). So it comes after leaving an immediate contact with the material.
  • rejuvenation of the air inlet (m) means more effort for the fan, the air penetrates deeper into the layer of thrown-out material and the contact between the drying air and the material is intensified.
  • a steep angle of incidence in the opposite direction of the ascending material was chosen.
  • a heating (I) of slide plate (i), wave shell (j) and guide plate (k) is shown, which can be done in various ways.
  • the drying air which is usually very high in spin dryers when Eitnritt in the dryer and moves between 300 and 800 degrees Celsius, first to the slide plate (i), the wave shell (j) and the baffle (k ), before it is deflected and passed through the air inlet (m) into the material.
  • This can be done segment by segment or over the entire dryer length, and it can also be combined with other locations of air introduction, for example with introduction of the air into the material lysis tunnel, as described in 585/12.
  • the correct inlet height of the hot air must be ensured, sufficiently high to heat as much of the sliding plate (i) as possible, not sufficiently deep for material deposits in the area where the material impacts the sliding plate (i) ignite.
  • air is not the only medium that heats the spin dryer from below can be. Fluids such as water and oil are also suitable for this purpose.
  • the cooling water of a Verbernungsmotors can be used, or the Abwaerme a water-cooled combustion chamber, which will be described below, or a sun-heated medium, or any otherwise for availing heat source. Again, this is segmented, or can be done over the entire length of the dryer.
  • a filter device (s) in the drying chamber was selected therein, shown in the figure 4 in the form of pocket filters. What has not already been held back by gravity in the calming stretch (z) which can be expanded as desired is deposited here.
  • the filter device can be supplemented by a slide plate (o), at the lower end of which a conveyor screw, or otherwise a suitable removal device, is attached.
  • slip sheet (i), wave shell (j) and baffle (k) are subject to a certain wear, especially in sewage sludge and other materials loaded with inorganic materials, in particular with sand. This can be counteracted on the one hand with a suitable coating.
  • the burner (p) is located in the lower part.
  • the flame has enough space to burn free.
  • the hot flue gases rise and mix with the fresh air that enters through the inlet (r) and leaves the combustion chamber through the air outlet (s) as a hot air / flue gas mixture.
  • Other arrangements of firing, fresh air inlet and mixing of air and fuel gases are also conceivable. All embodiments are common in the invention that they. to be cooled with water, possibly with oil, or otherwise with a suitable gaseous, liquid or even solid medium (q). This makes it possible to make better use of the radiant heat of the burner (p) than if it were only isolated.
  • a first possibility is to remove the heat via a heat exchanger in the area of the air inlet of the combustion chamber (r), by pre-heating the incoming air. If a countercurrent heat exchanger is used, higher temperatures result than with other heat exchanger configurations, which however are not excluded. If a configuration is selected in which no fresh air is added at all, the supply air of the burner can be heated. Another possibility is to use the heat from the combustion chamber cooling (q) to heat the walls of the spin dryer. It is also possible to install a heat exchanger also in the outlet area of the air (s), for example in order to use part of the heat energy in order to produce a steam engine or other power heat. Operate coupling machine.
  • the drawing 6 represents a spark filter, which is especially necessary if solid fuels are burned. It consists of a cylindrical channel (t), in which the flue gases, or the flue gas / air mixture, is set in a rapid rotational movement / are.
  • the rapid movement of the air does not create any build-up on the walls and the sparks are "blown out.”
  • the rotation and the speed can be assisted by another internal cylindrical device, here called the "soul".
  • a suitable Beereinfuehrung will support the rotational movement.
  • the air is introduced tangentially through two opposite inlet channels (v). This leads to an immediate turning movement in the whole channel, whereas at one inlet only it builds up slowly.
  • the same device can also be used for the separation of dust particles, which are pressed by the rotational movement to the outside.
  • a dead-end is provided into which the dust particles are transported by the rotational movement of the air.
  • Both the cylindrical channel (t) and the core (u) can be cooled by any medium, by any convenient method. It can be particularly interesting to design the cylindrical channel (t), the soul (u), or both, in the form of a coil.
  • a possible location for the combustion chamber, with or without spark filter, or for the dryer firing in general, is in drawing 4 with (aa) and is located in the holo behind the slide plate (i), so that this room is used and the entire system becomes even more compact.
  • the radiant heat of the burner, the slide plate (i) directly heated is also possible.
  • the drying process must be divided into several drying chambers, which must pass through the material, as shown for example in patent DE 10 2010 049 339 A1, but this means in comparison to the proposed solution, an extra effort in design and operation.
  • the air is guided so that it is forced through the cloud of material through which deflectors, obstacles, etc. can be dispensed with. Another simplification. This document presents further possibilities for optimization and application of the same invention.
  • Drawing 1 1 Raising with two spinning shafts
  • Drawing 12 raising with a bent trajectory
  • Drawing 13 Air inlet and outlet on the same side.
  • the designation of the elements is the same in the drawings 7 to 13:
  • the spinning-shaft dryer is equipped with a single spinning shaft (a1), as in the drawings 7, 8, 9 and 10, as well as 12 and 13, but this does not exclude the execution with more than one spin shaft.
  • drawing 1 1 a variant is shown with two centrifugal shafts. A larger number of waves is also conceivable.
  • one or more waves the material from the bottom of the dryer raise, while one or more other waves are in the drying room and receive the material raised from the ground and throw further, or swirl.
  • the material is thrown up turbulently and a mixture effect is created, which can be additionally reinforced by the geometry of the blades. This can be a desired effect during the drying process, but also opens up the possibility of using this device not only as a dryer, but simply as a material mixer.
  • the spinning shaft will be equipped with T-pieces, with the longest possible upper crossbar, or even with blades or crossbars, which extend over the entire length of the spinning shaft.
  • a spinning shaft is shown with only two rows of blades. But it can be more. As in drawing 13, there may be four rows of blades, or more. The larger the diameter of the axle and the more uniform the material is to be thrown, the more blade rows are used.
  • the shell in which the spinning shaft rotates (b1), as shown in the drawings 7, 8, 9, 12 and 13, is pulled up so that the throwing direction of the material is defined in a single, desired direction.
  • This part of the spin-wave shell is called the material-throw baffle (c1).
  • Different angles can be defined fixed or adjustable.
  • the sliding wall (d1) is at an angle such that the material passes sufficiently far down the axis of the spinning shaft so that the blades of the latter completely carry the material through the shell (Fig. b1) through and on the other side can raise again. Otherwise, there will be a jam and the device will no longer function optimally. This is particularly important if, as in FIGS. 11 and 12, but also in the drawings 7 to 8, the air inlet (j1) is located on the side of the sliding wall (d1).
  • a wave breaking or material loosening device can also be performed in the form of another spin shaft.
  • this dryer can operate this dryer as a through-dryer, in which the moist material is continuously filled and the dry material is removed continuously.
  • Moving the material through the dryer uses the phenomenon that the material tends to equalize along the spin wave to a uniform level. If material is added in the drawing 10, left, at the material inlet (h1), at one end of the spinning shaft, the material already in the dryer automatically moves in the direction of the material removal (i1), at the other end of the spinning shaft (a1) , displace. The same applies on the other side, in the material removal (i1), at the other end of the spinning shaft (a1), in the reverse operation. If material is removed there, material automatically moves in, as the material tends to equalize to a uniform level.
  • This type of movement of the material through the dryer is additionally associated with the advantage that the residence time of the material can be determined relatively accurately. This can be what is rather difficult with conventional centrifugal shaft dryers with parallel guidance of air and material.
  • the input (h1) and the discharge (i1) of the material provided with an adjustable mechanism, here shown with a feed screw.
  • the auger can be mounted below or to the side, in the area of the skimmer shaft (b1), or in another suitable location.
  • One of the other suitable locations is to attach the material removal screw to the rear wall of the dryer on the sliding wall (d1).
  • other mechanisms than screw conveyors are conceivable. Mentioned as an example that the removal of material on the sliding wall can be done with a slider that is more or less open and thereby more or less material is thrown through this opening out of the dryer. Such a sliding device can also be mounted in other places, for example at the bottom of the dryer. The same applies to any other removal device.
  • the insertion of material can take place laterally or from above, theoretically even from below.
  • the movement of the material can be supported by the inclination of the axis, fixed or adjustable.
  • this type of dryer can also be operated as a portion dryer.
  • the material is introduced at a suitable point and removed after the defined drying time in a suitable manner.
  • Insertion of material (h1) and -due (i1) can be arranged exactly the same as in continuous operation, possibly optimized by an adjustable tendency to dryness. Since the fastest possible filling and removal is advantageous in the case of portion drying, the material can be filled at several points, or even over the entire length of the axis. For removal, one of the sidewalls or floor can be opened, the whole dryer can be tilted, corresponding sliding doors or other devices used, or otherwise used in a manner that allows the dryer to be emptied as quickly as possible at a time.
  • the dryer may basically consist of a single continuous unit, a single unit divided by segments, a plurality of units, or a combination of these variants.
  • the first is, as in the drawings 7, 8, 9, 11 and 12, to introduce the air on the side of the sliding wall (d).
  • drawings 7 to 9 show an embodiment which is not suitable for all materials, or may need to be protected from clogging by a grid
  • the drawings 11 and 12 show an embodiment which is guaranteed to be free from clogging.
  • the slide plate (d1) feeds the material at the correct angle of the spin shaft, as mentioned in the introduction, but that the underlying wall of the air inlet is steep enough that no material can accumulate and that this angle the material also smoothly the centrifugal shaft feeds. This means that the material comes to rest where it can be taken back by the blades of the spinning shaft (a1) and in no case impinges too close to the axis of the spinning shaft.
  • the air enters the cavity (f1) has to pass through the material ellipse (e1), and the material also receives fresh, unsaturated air through the dryer at virtually any point.
  • this solution is structurally the easiest to solve.
  • the latter possibility opens up even more perspectives.
  • In the cavity (f1) can also be fired directly into it, especially in fire-resistant materials, or very wet material, but not exclusively.
  • the material supply can be controlled so that the material, despite maximum inlet temperatures of the flue gases, does not exceed certain maximum material temperatures.
  • the configuration of the impellers of the spinning shaft (a1) can be selected here so that the material is also mixed to a greater or lesser extent, so that there is nowhere too dry material that could ignite.
  • the material can be turbulent, uniform, or mixed.
  • Patent Application 259/12 describes the possibility of having several air streams distributed in the same dryer, on several segments in the dryer, or on several dryers.
  • the variant, in which is fired directly into the material offers itself to lead the dense and high-energy steam, which arises as a result of heat recovery and heat with the recovered heat to heat a second air stream, with another drying section, or another dryer unit can be operated.
  • the "hot” end is fired into the material, or it is added air and the material is burned at this end.
  • the "cold” end the material is introduced and by the described tendency of Material to be balanced along the spinning shaft (a1) is fed to the "hot” end and degassed on the way there.
  • the most suitable, but not exclusive, operation is analogous to through-drying. tion of the air outlet adjusted accordingly. - By the way: even a dryer in countercurrent principle is so conceivable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Drying Of Solid Materials (AREA)
  • Cleaning Or Drying Semiconductors (AREA)

Abstract

L'invention concerne un système pour traiter thermiquement un substrat humide pour accroître la teneur en substances sèches dudit substrat, lequel système comprend au moins un arbre centrifuge qui est disposé dans un carter et sur lequel sont placés des moyens pour acheminer de manière fragmentée le substrat humide dans un espace de séchage du système, ledit système présentant une entrée pour le substrat humide et une sortie pour le substrat dont la teneur en humidité est au moins partiellement réduite, et l'espace de séchage présentant une entrée et une sortie pour l'air de séchage et étant conçu pour l'apport de chaleur. Selon l'invention, la sortie ménagée pour le substrat dans le système est conçue pour diriger la quantité de substrat dont la teneur en humidité est au moins partiellement réduite et qui est présente dans l'espace de séchage. Figure
EP13723441.5A 2012-04-28 2013-04-27 Système pour le traitement thermique d'un substrat humide pourvu d'un arbre centrifuge et procédé de mise en uvre associé Withdrawn EP2841860A2 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CH00585/12A CH706449A2 (de) 2012-04-28 2012-04-28 Verfahren und Vorrichtung zur Eindickung von flüssigen Lösungen.
CH00586/12A CH706450A2 (de) 2012-04-29 2012-04-29 Schleuderwellen-Trockner.
CH01052/12A CH706735A2 (de) 2012-07-08 2012-07-08 Verfahren und Vorrichtung zur Trocknung von feuchten und klebrigen Materialien in einem Schleuderwellentrockner.
CH00466/13A CH706388A2 (de) 2012-04-28 2013-02-17 Verfahren zur Vorrichtung zur Eindickung von flüssigen Lösungen, zur Trocknung des eingedampften Konzentrates, wie auch feuchter Schüttgüter.
PCT/EP2013/058825 WO2013160479A2 (fr) 2012-04-28 2013-04-27 Système pour le traitement thermique d'un substrat humide pourvu d'un arbre centrifuge et procédé de mise en œuvre associé

Publications (1)

Publication Number Publication Date
EP2841860A2 true EP2841860A2 (fr) 2015-03-04

Family

ID=48289130

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13723441.5A Withdrawn EP2841860A2 (fr) 2012-04-28 2013-04-27 Système pour le traitement thermique d'un substrat humide pourvu d'un arbre centrifuge et procédé de mise en uvre associé
EP13720344.4A Withdrawn EP2841859A2 (fr) 2012-04-28 2013-04-27 Dispositif pour réduire la teneur en liquide d'un substrat, pourvu d'un arbre centrifuge actionné en rotation, et système pour le traitement thermique d'un substrat humide comprenant un tel dispositif

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP13720344.4A Withdrawn EP2841859A2 (fr) 2012-04-28 2013-04-27 Dispositif pour réduire la teneur en liquide d'un substrat, pourvu d'un arbre centrifuge actionné en rotation, et système pour le traitement thermique d'un substrat humide comprenant un tel dispositif

Country Status (3)

Country Link
EP (2) EP2841860A2 (fr)
CH (1) CH706388A2 (fr)
WO (2) WO2013160480A2 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US663868A (en) * 1899-01-03 1900-12-18 Francis Charles Crean Treatment of wood-pulp.
US2304221A (en) * 1940-03-27 1942-12-08 Celanese Corp Drying apparatus
DE1038485B (de) * 1955-07-08 1958-09-04 Hazemag Hartzerkleinerung Trockner fuer mehliges, griessiges oder stueckiges Schuettgut
CH418981A (de) * 1961-05-18 1966-08-15 Harlacher Benedikt Verfahren zum Trocknen von zerkleinertem Gras
DE2263968C3 (de) * 1972-12-29 1984-09-13 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von nichtstaubenden oder praktisch nichtstaubenden Farbstoffkörnern
DE4447311C2 (de) * 1994-12-31 2000-05-04 Michael F Rossmann Verfahren zur energieeinsparenden und umweltverträglichen Trocknung von Futterstoffen und/oder feuchten Erntegütern in Anlagen mit Bandförderung und Vorrichtung zur Durchführung dieses Verfahrens
US6122841A (en) * 1998-05-07 2000-09-26 Asj Holding Aps Apparatus for the drying of moist particulate material in superheated steam
DE202007019055U1 (de) * 2007-11-06 2010-05-27 Spaleck Oberflächentechnik GmbH & Co. KG Trocknungsanlage zur Trocknung eines Feststoffanteils aus der Fest-Flüssig-Trennung einer biologisches Material enthaltenden Dispersion
DE102010049339A1 (de) * 2010-10-22 2012-04-26 Franz Josef Kraus Vorrichtung und Verfahren für die Trocknung von Gütern in einem Schleuderwellentrockner
EP2527771A1 (fr) * 2011-05-23 2012-11-28 Buss-SMS-Canzler GmbH Réacteur de séchage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013160479A2 *

Also Published As

Publication number Publication date
WO2013160480A2 (fr) 2013-10-31
WO2013160480A3 (fr) 2013-12-19
WO2013160479A3 (fr) 2013-12-19
EP2841859A2 (fr) 2015-03-04
WO2013160479A2 (fr) 2013-10-31
CH706388A2 (de) 2013-10-31

Similar Documents

Publication Publication Date Title
DE102015108742B4 (de) Verfahren und Vorrichtung zum Aufbereiten von organischen Festbrennstoffen, insbesondere Waldhackschnitzeln
EP2831198B1 (fr) Dispositif et procédé de dépolymérisation catalytique d'une matière contenant un hydrocarbure
DE102006012577A1 (de) Trocknungsvorrichtung für Tabak
DE4315074B4 (de) Verfahren und Vorrichtung zum Entwässern von Schlämmen
WO2010029045A2 (fr) Procédé et dispositif de séchage de biomasse
EP2617298B1 (fr) Séchoir électrodynamique et procédé de séchage électrodynamique pour le séchage d'un matériau du tabac
DE2601941A1 (de) Geraet zur gefriertrocknung
WO2013160479A2 (fr) Système pour le traitement thermique d'un substrat humide pourvu d'un arbre centrifuge et procédé de mise en œuvre associé
DE102014218640B4 (de) Vorrichtung und Verfahren zum Trocknen eines Tabakmaterials
EP2399093B1 (fr) Séchoir pour le traitement des déchets de jardin
DE102014119341A1 (de) Vorrichtung und system zum trocknen von dung
CH706735A2 (de) Verfahren und Vorrichtung zur Trocknung von feuchten und klebrigen Materialien in einem Schleuderwellentrockner.
EP3491312B1 (fr) Séchoir par contact
DE202013101746U1 (de) Trockner zum Trocknen von Trocknungsgut mittels warmer Trocknungsluft
DE68916245T2 (de) Trocknungs- und verbrennungsvorrichtung für feste entflammbare materialien mit hoher feuchtigkeit.
WO1994003406A1 (fr) Procede et dispositif de traitement thermique de dechets et/ou de residus
DE10002535C2 (de) Vorrichtung zum Trocknen von Schlamm
EP2395306A2 (fr) Procédé et dispositif de séchage de fibres, notamment de copeaux de bois
CH706450A2 (de) Schleuderwellen-Trockner.
DE949219C (de) Verfahren und Vorrichtung zum pneumatischen Stufentrocknen
EP3640572A2 (fr) Procédé et installation de séchage pour bois humide et analogue ayant une qualité de gaz d'échappement améliorée
DE202022102467U1 (de) Heizeinrichtung und Heizsystem
DE149590C (fr)
DE2730942C2 (de) Schaufeltrockner
DE2120999A1 (de) Trockenzentnfuge

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20141127

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20171103