EP0314691B1 - Verfahren und vorrichtung zum trocknen von keramischen hohlkörpern - Google Patents

Verfahren und vorrichtung zum trocknen von keramischen hohlkörpern Download PDF

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Publication number
EP0314691B1
EP0314691B1 EP19870904526 EP87904526A EP0314691B1 EP 0314691 B1 EP0314691 B1 EP 0314691B1 EP 19870904526 EP19870904526 EP 19870904526 EP 87904526 A EP87904526 A EP 87904526A EP 0314691 B1 EP0314691 B1 EP 0314691B1
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EP
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Prior art keywords
air
hollow bodies
drying
current
drying device
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Expired - Lifetime
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EP19870904526
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German (de)
English (en)
French (fr)
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EP0314691A1 (de
Inventor
Max Wagner
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NOVOKERAM MAX WAGNER GMBH
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NOVOKERAM MAX WAGNER GmbH
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    • 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
    • F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
    • F26B3/343—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects in combination with convection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/241—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening using microwave heating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/243—Setting, e.g. drying, dehydrating or firing ceramic articles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/006—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects the gas supply or exhaust being effected through hollow spaces or cores in the materials or objects, e.g. tubes, pipes, bottles

Definitions

  • the invention relates to a method for drying ceramic hollow bodies and a drying device therefor with the features in the preambles of the main method and device claim.
  • Such a drying device is known from the closest US-A-4,439,929.
  • a radiant heating unit is combined with a hot air heating unit in one station.
  • the hot air blower drying works at high temperatures between 80 and 150 degrees Celsius and wind speeds between 0.3 and 2.0 m / sec.
  • the radiant heating unit is designed as a high-frequency dryer, with the aim of preventing wet fields from remaining in the molding which cause problems during the subsequent firing. To avoid this, the moldings stand on perforated metal plates.
  • the hot drying air is blown into the molding through the perforations.
  • the hot air is also blown into the drying chamber from the outside and thereby sweeps over the moldings on the outside.
  • the prior art technology has some disadvantages for drying hollow ceramic bodies, in particular honeycomb bodies or ceramic catalysts with a large number of fine through-holes.
  • Certain types of ceramic catalysts depending on the material, only tolerate ceramic catalysts, depending on the material, only relatively low drying temperatures.
  • a strong release of moisture on the outside of the hollow body is unfavorable, since this can lead to an undesirable and uncontrollable increase in temperature inside the hollow body and to stress cracks.
  • the drying behavior inside the hollow body is also problematic, since if the critical temperature is exceeded and the drying process is too slow, there is a risk of electrical discharges and the destruction of the hollow body.
  • FR-A 965 166 shows an infrared heater for soft bodies that are sensitive to radiation.
  • the distance of the infrared lamps from the dry goods can be varied over the transport length. This device cannot be used for drying ceramic hollow bodies.
  • the invention solves this problem with the features in the characterizing part of the main method and device claim.
  • the drying energy is primarily applied by radiant heating, preferably with microwave or high-frequency generators.
  • ventilation primarily serves to remove the expelled moisture. The air is conditioned to such an extent that it can absorb the expelled moisture without excessively drying out the hollow body on the inlet side.
  • the air flow directed specifically through the interior of the hollow body causes not only a rapid removal of the expelled moisture, but also cooling of the ceramic hollow body and a rapid reduction of steam tensions with rapid drying. This is particularly advantageous for ceramic catalysts which have a large number of fine, parallel through-channels or lamellae through which the air flow flows axially.
  • the air flow is predominantly guided through the interior of the hollow body.
  • the moisture is transported away, especially in the interior, and the ceramic hollow body dries evenly over the entire cross-section. This results in stress-free drying with even and controllable shrinkage of the material to be dried.
  • the degree of distribution between the inner and outer flow depends on the shape and the material of the ceramic body. In some cases, a pure internal flow is recommended.
  • the invention provides the possibility of very rapid drying, which nevertheless allows controlled, uniform shrinkage and thus avoids stress cracks or warpage.
  • the drying times are there very low, for example in the range of an hour or less.
  • the method according to the invention and the associated drying device can be operated in a stationary or non-stationary manner.
  • various embodiments are specified in the subclaims, which also differ according to hollow bodies transported in the longitudinal or transverse direction.
  • the hollow bodies are preferably transported through a plurality of stationary radiant heaters and are dried in several stages. Between the radiant heaters, different temperatures and degrees of moisture can be compensated for in the hollow bodies in resting stages. The air flow is also maintained during the rest times by ventilation devices that may be moved. However, it can also be switched off in the meantime.
  • the hollow bodies At the end of the heating section, the hollow bodies have already dried to the extent that no further shrinkage takes place. The hollow bodies are then insensitive to drying and can only be flowed through with hot air for finished drying.
  • the hollow bodies can also be dried in a tunnel-like covering which is permeable to the heating radiation and, above all, regulates the degree of flow to the outer surface by varying the gap distance to the hollow body.
  • the covering also permits the joint drying of hollow bodies of different lengths, or the use of a general type of drying device for different types and shapes of hollow bodies.
  • the casing can be designed differently, for example as a supporting tube that moves along or as a multi-part aperture tunnel comprising a pallet and an aperture cover. Both forms also allow easy adaptation to different hollow body cross sections.
  • the multi-part aperture tunnel can be moved along with the support tube and constantly surround the hollow body. However, it can also be arranged in a stationary manner and thus only function temporarily, which is particularly advantageous for drying devices for drying longitudinally oriented hollow bodies. Stationary coverings can be adapted to the shrinkage of the hollow body, which enables the flow distribution to be kept constant.
  • the design and function of the ventilation devices can be varied in order to safely regulate and monitor the drying process. Possibilities of influence exist by changing the air conditioning, the flow speed (vapor tension reduction), the transport speed or cycle time and the radiant heating power.
  • Variations are also possible with regard to the air flow guidance, which can be moved, for example, in a closed circuit separately at each heating stage or in a pass against the transport direction over all stages.
  • the latter variant has the advantage of high economic efficiency and a comparatively simple conditioning, in particular the humidification of the air flow, since this is already loaded with moisture from the previous heating stage.
  • it is advantageous that the drying device is sealed off on the outside, which prevents the heating radiation and also the air flow from escaping undesirably.
  • the method according to the invention and the associated drying device are suitable for arbitrarily shaped ceramic hollow bodies.
  • hollow bodies with lateral bulges or branches can also be dried.
  • a continuous air flow can also be generated here, which branches in the hollow body and can be conducted in a closed circuit.
  • a plurality of hollow bodies can be acted upon jointly, preferably in parallel, with the step air flow.
  • the method according to the invention and the associated device can also be used successfully for drying hollow bodies made of other materials, for example wood or the like, in addition to the ceramic area. They are also suitable not only for hollow bodies with one or more axial through channels, but also for porous materials. The most important thing is that a continuous air flow can be achieved inside the hollow body.
  • the drawings show a drying device (20) for drying hollow ceramic bodies (1), which essentially consists of one or more radiant heating devices (21) and one or more ventilation devices (16).
  • Fig. (1) shows a drying device (20) for stationary operation, while the drying devices in Fig. 2, 3 and 4 are designed for continuous operation.
  • the ceramic hollow body (1) is designed as a long ceramic catalyst which has a large number of fine axial passage channels or lamellae.
  • the hollow body (1) is connected to the ventilation device (16) on both end faces, at which the through holes end, which generates an air flow (19) directed axially through the hollow body (1).
  • a flow around the outside of the hollow body (1) with air is avoided in the one exemplary embodiment of FIG. 1 and in the other example FIGS. 4-10 is permitted to a small extent.
  • the decision as to whether or not an external flow should take place depends on the material and the shape of the hollow body (1), in particular also on its outer wall thickness and design.
  • the heating energy required for drying is supplied to the ceramic hollow body (1) in a radiant heater (21) via one or more microwave generators (9) arranged therein.
  • microwave generators 9
  • high-frequency generators can also be used in the embodiment of FIGS. 1-7 and 9.
  • a radiation heating wave range of approximately 4 to 2450 MHz is preferred.
  • a plurality of microwave generators (9) are arranged one behind the other in the roof of the housing (10) in the direction of the air flow (19) and the power can be regulated independently of one another.
  • the hollow body or bodies (1) rest on a floor (11) reflecting the microwaves or on a reflective conveyor belt (11).
  • the power of the microwave generators (9) is increased in proportion to the water absorption of the air in order to ensure moisture absorption even at the end of the hollow body (1).
  • the air flow is always heated above the condensation point of the moisture that is carried along. With increasing humidity, the efficiency of the radiant heating also increases.
  • the width of the microwave generators (9) can span several hollow bodies (1) or can be arranged in a row in a checkerboard pattern in several rows.
  • one or more long microwave generators extending along the hollow body can also be provided.
  • the desired increase in heating power is then achieved by increasing the distance to the hollow bodies.
  • the microwave generators are accordingly adjustable in height and tilted cf. 4 and 9.
  • the generators can be provided on the bottom or the sides of the hollow body (1) for the application.
  • the assignment of the ventilation device (16) can be changed accordingly.
  • microwave generators (9) When drying hollow bodies (1) with different dimensions, differences result from varying distances between the microwave generators (9) and the hollow bodies (1). These differences can be compensated for by changing the power of the microwave generator (9) or by changing their distance from the hollow bodies (1). To change the distance, the microwave generators (9) are movably mounted in the housing (10) or the housing parts are in turn movably arranged in relation to their frame.
  • the ventilation device (16) consists of a recirculation line (3) in which the air flow (19) can be circulated.
  • the air recirculation line (3) has an exhaust air connection (4) and a supply air connection (5), which can be opened and closed via adjustable flaps.
  • An adjustable heating device (6) and a continuously adjustable fan (7) are arranged in the recirculating air line (3).
  • a sensor (8) in the air recirculation line (3) which detects the temperature and humidity of the air flow (19). The other parts of the regulation are not shown.
  • the hollow bodies (1) are acted upon by air conditioned according to the degree of drying.
  • the hollow body (1) first of all with an air temperature of e.g. approx. 40 degrees and a relative humidity of e.g. 95% flow.
  • an air temperature e.g. approx. 40 degrees
  • a relative humidity e.g. 95% flow.
  • the whole of the hollow bodies (1) are carefully heated only by the radiant heating, the drying process already beginning with the removal of the moisture.
  • the heat output gradient ensures that the relative humidity is just below the condensation point.
  • the flexible air recirculation line (3) protrudes from the side into the interior of the radiant heater (21) and is with the hollow body (1) through two ends attachable air nozzles (2) connected.
  • the size of the air nozzles (2) is adapted to the dimensions of the end faces of the hollow body (1), which ensures an airtight fit of the air nozzles (2) on the hollow body (1).
  • air flow (19) conducted in a circle through line (3) is directed only through the interior of the hollow body (1), but not along its outer sides.
  • a plurality of recirculated air lines (3) or a recirculated air line with a distributor piece (not shown) for connecting a plurality of air nozzles (2) are provided.
  • the air nozzles (2) can be designed to be adjustable or to be exchangeably fastened.
  • the radiant heater (21) consists of a laterally open housing (10), the side opening of which opens access for the air recirculation line (3) and is otherwise secured by a side shield (12) against undesired escape of the radiation.
  • the front opening is also shielded, for example by a chain curtain (13).
  • the air nozzles (2) are plugged outside the radiation heater (21) onto the hollow body (1), which is then brought into the interior of the radiation heater (21).
  • a drying device (20) is shown, which is designed for continuous operation.
  • a number of ventilation devices (16) and microwave heating devices (21) are provided, which essentially correspond to those of FIG. 1.
  • several batches of hollow bodies (1) are processed simultaneously.
  • Each batch consists of several hollow bodies (1) arranged parallel to one another, which are aligned transversely to the transport direction (33) and are connected together to a ventilation device (16).
  • the hollow bodies (1) are brought to a conveying device (11) at an installation point (17), here in the form of an endless conveyor belt (11) moved by a drive (14) and connected to a ventilation device (16). On their transport route they move the ventilation device (16) while maintaining the connection and the air flow.
  • this is movably mounted on rails (15) via a chassis (22).
  • a stationary radiant heater (21) connects to the scaffolding point (17), to which a quiet zone (18) and in turn a further radiant heater (21) is connected.
  • At the end of this line of equipment there is a disassembly station at which the dried hollow bodies (1) are separated from the ventilation device (16) and removed from the conveyor belt.
  • the empty ventilation device (16) can then drive back to the installation point (17) and be connected to a new batch of hollow bodies (1) there.
  • two or more ventilation devices (16) are provided which can run over each other and each run on their own rails (15). In the embodiment of Figure 3, only a single ventilation device (16) is shown.
  • FIGS. 1-3 Variations on the embodiment of FIGS. 1-3 are possible in different ways.
  • an external flow around the hollow body (1) may be desirable in some cases.
  • the air nozzles (2) then do not connect tightly to the end faces of the hollow body (1), but leave a small circumferential gap through which a small part of the air flow emerges, sweep freely along the outer surfaces of the body and then back into the other end Air nozzle (2) can enter.
  • small clamping webs can be provided for clamping the hollow body ends on the air nozzles in this case.
  • the air for generating flow can in principle be blown in at one end of the hollow body (1) or extracted at the other end, or both blown in and extracted. In all cases, it is also possible to vary the flow rate of the air in order to reduce steam tensions in the hollow bodies (1), for example by increasing the flow rate during rapid drying. The degree of moisture removal can also be regulated by changing the flow rate.
  • FIGS. 8-10 show further variations of the drying device (20).
  • the hollow bodies (1) are mounted in a tunnel-like covering (24) which is permeable to the radiant heat and which surrounds the hollow body in tight contact to avoid an external flow or by leaving a gap (32) to adjust the external flow.
  • the casing is designed as a support tube (30) made of ceramic or the like, in which a hollow body (1) of the same or shorter length is mounted.
  • the hollow body (1) lies at least in the lower region on a support (29) which has knobs or webs to form longitudinal ventilation channels.
  • the support tube (30) is adapted in this case to the hollow body cross-section, both of which can have any other, for example polygonal, cross-sectional design in addition to the circular shape shown.
  • a pallet (28) with adapted recesses is provided, which rests on the floor or the conveyor device (11).
  • the support tube (30) can also have legs or the like. Other fixing means.
  • the exemplary embodiments 8 and 1 can be combined with one another by plugging the air nozzles (2) onto the support tube (30) with a tight seal on the edge.
  • Fig. 9 shows a further possibility that allows the housing (10) to be completely closed for radiation shielding.
  • the air nozzles (2) are arranged here laterally but outside the housing (10) and are connected to the interior via a respectively inserted panel (31).
  • the diaphragm openings are aligned with each other on both sides and also correspond to the cross section of the hollow bodies (1) which are correspondingly arranged in the housing (10).
  • the hollow body (1) extends at both ends up to the screens (31). The air flowing through the apertures thus reaches the inside of the body without being able to escape laterally. With the same size of the hollow body (1) and aperture opening, an external flow around the hollow body (1) can be avoided. If, on the other hand, this is desired, the diaphragm opening is enlarged according to FIG. 10 to form an edge-side gap (32).
  • support tubes (30) or other tunnel-like coverings (24) can also be used.
  • a combination of support tube (30) and screen (31) enables the use of envelopes in standard sizes, which in some cases are larger than the cross-section of the hollow body, since the amount of air flowing along the outside depends on the size of the gap (32) between the aperture opening and the cross-section of the hollow body (1) is set.
  • Fig. 10 illustrates this arrangement and also shows a support (29) arranged only in the lower contact area.
  • Fig. 4 shows a variant of a multi-part drying device (20), in which the hollow body (1) are aligned along the transport direction (33).
  • the drying device (20) is heat, air and radiation-tight as a closed system.
  • the ventilation devices (16) are arranged here between the individual radiant heating devices (21). They have the shape of domes in cross section and are each connected to the front radiation heater (21) with a conically tapering air nozzle (2) and to the rear radiation heater (21) with the other air nozzle (2).
  • the ventilation devices (16) each have a fan (7) in the form of a cross-flow fan, which sucks in the air from the air nozzle (2) at the front in the transport direction (33) and blows it into the rear air nozzle (2).
  • the air flow (19) is guided from the outlet side against the transport direction (33) through the individual drying stages to the inlet side.
  • relatively dry air is introduced at the outlet side, which is harmless given the high degree of dryness of the hollow bodies (1) that have arrived there.
  • the air flow (19) absorbs more and more moisture and essentially conditions itself to the extent necessary for the degree of drying of the hollow bodies (1).
  • the ventilation devices (16) each have a supply air connection (5) on the front, suction-side air nozzle for the supply of fresh air.
  • An exhaust duct (4) and then a heater (6) for the air flow (19) are arranged on the pressure-side air nozzle (2) behind the cross-flow fan (7).
  • Both air shafts (4, 5) are equipped with adjustable flaps.
  • sensors (8) for temperature and humidity are arranged near the radiant heaters (21).
  • the cross flow fans are arranged in the middle and in the upper area of the domes. Below this there are pivotable partitions (23) which seal the two air nozzles (2) of each ventilation device (16) against each other in such a way that air can only be exchanged via the cross-flow fan (7).
  • the hollow bodies (1) are moved in cycles through the various climatic zones or drying levels and gradually dry out in the differently conditioned zones.
  • the pivotable bulkheads (23) can be regulated depending on the conveying movement, so that the hollow bodies (1) can pass underneath.
  • At the end of the drying device (20) there can also be a pure ventilation station, in which the hollow bodies (1) are completely dried with hot air blown through them. Radiant heating is no longer effective given the degree of dryness of the hollow body (1). There is no longer any risk of cracks due to shrinkage.
  • FIG. 5 illustrate, in a system according to FIG. 4 several hollow bodies (1) are dried side by side in tunnel-like coverings (24). In the exemplary embodiment shown, they are stationary and can therefore be adjusted to the respective shrinkage of the hollow body (1) in the individual drying stage.
  • the coverings (24) from between the hollow bodies (1) extending webs (25) which connect to the air nozzles (2).
  • Insulated side walls (26) are provided on the outside, while the underside is formed by a conveyor belt (11) profiled in the longitudinal direction.
  • the upper side is formed by the microwave or high-frequency generators (9) directly or by a support wall arranged below it. These continue in the connection area to the air nozzles (2) in corresponding ceiling parts.
  • the webs (25) become increasingly thicker in the transport direction (33) in accordance with the degree of shrinkage from drying stage to drying stage.
  • Fig. 7 shows a variant of this, in which the hollow body (1) in a correspondingly shaped pallet (28), possibly over profiled supports (29) are stored.
  • the pallet (28) is moved forward with the conveyor belt (1).
  • the upper part of the tunnel-like covering (24) is formed by a correspondingly designed diaphragm cover (27), with which the size of the gap (32) which may be required is also set.
  • the microwave or high-frequency generators (9) are arranged above the diaphragm cover (27). Lateral walls (26) protrude laterally over the pallets (28) for guidance and sealing.
  • the panel cover (27) can be moved on the pallet (28) with appropriate support. In principle, this results in a two-part support tube.
  • the cover plate (27) can, however, also be arranged in a stationary manner in each radiant heater (21), the pallets (28) with the hollow bodies (1) moving below them.
  • this design can also be used for the ventilation of transverse hollow bodies (1) in an embodiment according to FIG. (2) or (9).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Microbiology (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biotechnology (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Drying Of Solid Materials (AREA)
EP19870904526 1986-07-11 1987-07-08 Verfahren und vorrichtung zum trocknen von keramischen hohlkörpern Expired - Lifetime EP0314691B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87904526T ATE59100T1 (de) 1986-07-11 1987-07-08 Verfahren und vorrichtung zum trocknen von keramischen hohlkoerpern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863623511 DE3623511A1 (de) 1986-07-11 1986-07-11 Verfahren und vorrichtung zum trocknen von keramischen hohlkoerpern
DE3623511 1986-07-11

Publications (2)

Publication Number Publication Date
EP0314691A1 EP0314691A1 (de) 1989-05-10
EP0314691B1 true EP0314691B1 (de) 1990-12-12

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EP19870904526 Expired - Lifetime EP0314691B1 (de) 1986-07-11 1987-07-08 Verfahren und vorrichtung zum trocknen von keramischen hohlkörpern

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EP (1) EP0314691B1 (ja)
JP (1) JPH01503136A (ja)
DE (2) DE3623511A1 (ja)
WO (1) WO1988000678A1 (ja)

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DE102007012912B3 (de) * 2007-03-19 2008-10-30 Püschner Gmbh & Co. Kg Vorrichtung zum Trocknen von keramischen Hohlkörpern, insbesondere Wabenkeramiken oder keramischen Katalysatoren, mittels Mikrowellenstrahlung im Durchlauf durch mindestens einen Trocknungsraum
ITPR20090099A1 (it) * 2009-11-27 2011-05-28 Imas Srl Processo di essiccazione di prodotti pressati o estrusi con formati speciali e suo apparato
CN105546951A (zh) * 2016-03-07 2016-05-04 陈震 节能小型热风干燥机
DE102022132528A1 (de) 2022-12-07 2024-06-13 Dürr Systems Ag Vorrichtung und Verfahren zur Behandlung von Prozessgas

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DE3840264A1 (de) * 1988-05-27 1990-05-31 Erlus Baustoffwerke Verfahren und einrichtung zum trocknen von lochziegelrohlingen
DE3925063A1 (de) * 1989-07-28 1991-01-31 Wagner Max Novokeram Verfahren und vorrichtung zum trocknen von keramischen formlingen
US5263263A (en) * 1993-02-26 1993-11-23 Corning Incorporated Rotary dielectric drying of ceramic honeycomb ware
DE19544889A1 (de) * 1995-12-01 1997-06-05 Detlef Steinbach Verfahren und Anordnung zur Trocknung von Gebäuden und/oder ortsfester Bauteile
DE19624610A1 (de) * 1996-06-20 1998-01-02 Colortronic Gmbh Verfahren und Vorrichtung zum Trocknen
JP2002283329A (ja) * 2001-01-16 2002-10-03 Denso Corp ハニカム成形体の製造方法及び乾燥装置
JP4131103B2 (ja) * 2001-01-16 2008-08-13 株式会社デンソー ハニカム成形体の製造方法及び乾燥装置
JP2002228359A (ja) 2001-02-02 2002-08-14 Ngk Insulators Ltd ハニカム構造体の乾燥方法
JP4583640B2 (ja) * 2001-03-16 2010-11-17 株式会社ノザワ 押出成形セメント板の冷却方法及び冷却装置
JP4207422B2 (ja) * 2001-12-04 2009-01-14 株式会社デンソー ハニカム成形体の製造方法及び製造装置
WO2007108076A1 (ja) * 2006-03-17 2007-09-27 Ibiden Co., Ltd. 乾燥装置、セラミック成形体の乾燥方法及びハニカム構造体の製造方法
EP2684660A4 (en) 2011-03-07 2014-08-20 Sumitomo Chemical Co DRYING PROCESS AND DRYING DEVICE FOR A GREEN WAVEFORM BODY
US10173933B2 (en) 2013-05-06 2019-01-08 Corning Incorporated Rapid drying of ceramic greenwares
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EP0314691A1 (de) 1989-05-10
WO1988000678A1 (en) 1988-01-28
JPH01503136A (ja) 1989-10-26
DE3766707D1 (de) 1991-01-24

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