EP0142652A1 - Machine pour le traitement par la chaleur - Google Patents

Machine pour le traitement par la chaleur Download PDF

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Publication number
EP0142652A1
EP0142652A1 EP84110713A EP84110713A EP0142652A1 EP 0142652 A1 EP0142652 A1 EP 0142652A1 EP 84110713 A EP84110713 A EP 84110713A EP 84110713 A EP84110713 A EP 84110713A EP 0142652 A1 EP0142652 A1 EP 0142652A1
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EP
European Patent Office
Prior art keywords
drum
chambers
wall
chamber
screen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84110713A
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German (de)
English (en)
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EP0142652B1 (fr
Inventor
Friedrich Egger
Andreas Gautschi
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.)
Buehler AG
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Buehler AG
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
Application filed by Buehler AG filed Critical Buehler AG
Priority to DE8686113042T priority Critical patent/DE3472831D1/de
Priority to DE8686113049T priority patent/DE3477510D1/de
Publication of EP0142652A1 publication Critical patent/EP0142652A1/fr
Application granted granted Critical
Publication of EP0142652B1 publication Critical patent/EP0142652B1/fr
Anticipated expiration legal-status Critical
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    • 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
    • F26B11/18—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles
    • F26B11/181—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles the receptacle being a foraminous, perforated or open-structured drum or drum-like container, e.g. rotating around a substantially horizontal or vertical axis; the receptacle being multiple perforated drums, e.g. in superimposed arrangement
    • F26B11/185—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles the receptacle being a foraminous, perforated or open-structured drum or drum-like container, e.g. rotating around a substantially horizontal or vertical axis; the receptacle being multiple perforated drums, e.g. in superimposed arrangement the drum provided with internal subdivisions or multiple walls
    • F26B11/187—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles the receptacle being a foraminous, perforated or open-structured drum or drum-like container, e.g. rotating around a substantially horizontal or vertical axis; the receptacle being multiple perforated drums, e.g. in superimposed arrangement the drum provided with internal subdivisions or multiple walls the subdivisions consisting of sector-shaped perforated chambers

Definitions

  • the invention relates to a tempering machine for lumpy goods, preferably a dryer, in particular a pasta dryer, with a drum having a predetermined number of chambers with conveying devices for the material to be treated, which chambers are enclosed by a wall, two of which are mutually adjacent opposite sections facing the walls of adjacent chambers and two further sections the outer and an inner circumference, which are assigned to the drum, at least the latter wall sections having perforated screen walls.
  • a pasta dryer of this type has become known from IT-PS 512 118.
  • IT-PS 512 118 A pasta dryer of this type has become known from IT-PS 512 118.
  • a temperature control machine it is intended to express that such a machine is of course also suitable for cooling and in general for any type of heat or cold treatment. Therefore, the use of such machines is not limited to pasta, rather they could also be used for the heat treatment of fruits (eg nuts or beans of all kinds) or for mineral, piecey goods.
  • the conveying device in each chamber consisted of a type of screw formed by correspondingly shaped walls, which was, however, arranged immovably in the chamber and only rotated eccentrically around the drum axis with each drum rotation.
  • each chamber formed a channel for the dry air, which generally flowed across the drum.
  • the screen wall of the outer and inner circumference of the drum was fixed to the chamber housing. In the case of sticking, access to the interior of the housing was therefore difficult, so that cleaning could hardly be carried out in practice.
  • the invention has for its object, not just one To provide easy access to the interior of the chamber and thus to facilitate cleaning, but also to enable easy handling for this purpose. Another goal is to make assembly easier.
  • Etfindungsge insomniass this is achieved in that at least at one Trcmrelbone this is achieved in that one can be brought from a closed position to an andungsabêten from the remaining W lifted open position
  • Sieblochwand is at least on one circumferential drum provided, and that provided for the Sieblochwand a holding device and a clamping device. Therefore, in order to enable access to the sieve from all sides, only the clamping device needs to be loosened, whereupon the removable sieve hole wall is either pivoted around the holder or removed from it at all.
  • a special perforated screen wall is preferably provided for interacting with the holding device mentioned, which is characterized in that it has at least at one end at least one opening for the engagement of a holding device.
  • This sieve-side holding device then interacts with the machine-side holding device and / or with the tensioning device.
  • the connecting devices can easily be designed so that there is a stiffening between the individual components (shields and chamber elements), so that the construction is at least partially self-supporting and a separate supporting structure can be made cheaper or completely unnecessary. This not only results in a reduction in manufacturing costs, but also a reduction in weight for the entire machine, which ultimately also results in a reduction in the energy costs for the rotary drive. It is readily possible to form the shields so wide that on its outer circumference a drive can be eibrollen by R, since the shields then in spite of its relatively large diameter because of the provided transfer devices do not interfere with the flow of material. These transfer devices can be formed per se by emptying the material at the end of a chamber element and via a filling device into the next chamber element. is refilled, but in the simplest case, the transfer device is essentially merely formed by an opening in the dividing plate connecting the two chamber elements.
  • the drum be accommodated in a treatment chamber in which, in addition to the Devices for the continuous operation at least one flow generator for the circulation operation of the gas is arranged such that the flow can be passed at least once through the screen hole wall covered by the material of a part of the chambers arranged around the circumference of the drum.
  • the gas supplied during continuous operation in general air, but possibly also steam or an inert or treatment gas
  • the flow generator for circulating air is designed as a fan with a rotation axis running approximately parallel to the tangent to the drum.
  • a particularly favorable gas distribution results if the flow generator is at an angle to the cross-section through the drum, for example at approximately 45 ° Running direction of the gas is arranged, wherein it is preferably together with another such flow generator on a plane running through the drum axis. This ensures that continuous operation and circulating operation do not interfere with each other, on the contrary, both flow circuits complement each other. This means an even better utilization of the supplied gas and a higher efficiency.
  • At least one guide surface is assigned to the flow generator, namely on its side facing the chambers filled with the material covering the screen hole wall, for the forced passage of the gas which is carried out in circulation mode Guide surface to be arranged on the opposite side, but such brings less benefit and moreover arises automatically if the above-mentioned second flow generator is arranged, because its guide surface on the side facing the above-mentioned chambers expediently also forms the guide surface with its rear side for the other flow generator on the side facing away from the filled chambers.
  • a drum 1 is mounted in a drum housing 2 in a manner not shown.
  • the drum 1 is divided at predetermined, preferably uniform intervals by drum shields 3.
  • these drum shields each have an intermediate wall 4 which surrounds the shields 3.
  • the shields 3 may have a groove and / or a spring on their outer circumference, which engages in a corresponding groove or shape of the intermediate wall 4, so as to provide a better seal between the shields 3 and the intermediate walls 4 to achieve formed chambers.
  • the shields 3 and / or the intermediate walls 4 are constructed from several layers, of which individual layers protrude correspondingly to a spring or form a depression, in order to achieve tongues and grooves.
  • the drum 1 accommodates a number of box-shaped chambers 6 on its circumference.
  • Each of these chambers 6 contains a conveyor having a driven may be in the manner described above, or a merely passively driven by the rotation of the drum, but in each case, the material to be treated, in general, pasta, with at the same m ä s siger speed over the length of each chamber 6 transported.
  • the chambers of are aligned flush with each other in adjacent and separated by a shield 3 barrel sections 6 that the UT to be dried G at the end of a chamber 6 (refer to Fig. L) the rear barrel portion passes through one of the openings 7 and thence falls into a chamber 6 of the front drum section.
  • the material to be dried then passes through the corresponding chamber 6 in the front drum section and exits again at the foremost plate 3, with corresponding discharge devices being provided for the dried material.
  • Such devices are known from the prior art and therefore do not need to be explained in detail. It should only be pointed out that it is also known to remove the dried material from the inside of the drum, which is also within the scope of the possibility here.
  • the sieve fabric 8 delimiting the inner circumference of the drum somewhat narrower, so that there is enough space between its edge and the adjacent drum shield 3 to prevent the dried material from falling down on the underside of each chamber 6 and on the edge thereof to allow attached outlet opening.
  • the outlet opening can also be arranged in the region of the outer circumference of the drum 1, the dried material falling out being collected below the drum 1.
  • the advantage of dividing the drum 1 is not only that in this way together with the partition walls 4 separate treatment chambers different environments can be created, but that, moreover, the chambers 6 remain relatively manageable, even at relatively long construction of the drum 1, and therefore where appropriate n without the aid of a hoist by an operator to easily Trents sectionen tire can be removed.
  • the drum can also be supported with the aid of roller bearings accommodated in the space between the walls 4 and the shields 3.
  • This has the advantage that the specific surface pressure on the outer circumference of the shields 3 is correspondingly lower.
  • the drum 1 can also be driven via the shields 3, and for this purpose it is advantageous if the shields 3 protrude at least over the openings 7, preferably over the outside diameter of the chamber elements 6.
  • the sieve mesh 8 delimiting the inner circumference of the drum 1 is placed over rods 9 which are each fastened between two shields 3.
  • the inner screen wall consists of a single screen fabric 8 that is common to all the chambers 6 arranged on the drum 1, a particularly advantageous embodiment is shown for the outer screen wall.
  • Each chamber 6 is assigned a separate sieve wall 10, which is held taut at its lateral ends by means of inserted rods 11 on the chamber housing of each chamber 6. How this is done in detail will be explained later with reference to FIGS. 3 to 7.
  • the drum 1 due to its formation with sieve walls on the inside and outside circumference transverse to it Axis is permeable to air, so that a treatment gas, generally warm air, for example, can be blown into a chamber in each case according to the arrow 12 and discharged at the top, for example via an exhaust pipe 13. Examples of the guidance of the treatment air are explained below with reference to FIGS. 2 and 8.
  • two units are provided for generating heated circulating air, each of which consists of a heating element 17 and a blower 18. Accordingly, the air contained in each chamber is circulated according to the arrows 19 and heated by the heating device 17.
  • the treatment chamber has an inlet opening 20 on its front intermediate wall 4 'and an outlet opening 21 on its rear intermediate wall 4.
  • a connection to the adjacent chambers can be established through these openings 20, 21, provided these openings 20, 21 are not closed, as will be described later with reference to another exemplary embodiment according to FIG. 8.
  • a connection can also be made to the non-adjacent treatment chambers, the heated air being able to be conducted via pipes 13 and 23, respectively.
  • treatment can be carried out according to the countercurrent principle, the air laden with moisture being sent to the material to be dried.
  • all openings can also be closed, so that each treatment chamber 24 can have a separate and independent climate setting with circulating air or through-air.
  • the flow path for the through-air operation is given by the axis of the tubes 23 and 13 or the openings 20 and 21. This ensures that air is passed through the chamber elements 6 in the upper and lower quarters of the drum 1 in the through-air mode. But in the upper and lower quarters in particular, the screen hole walls 10 of the chamber elements 6 are completely covered by the material 16, so that it is ensured that the air cannot pass the material essentially ineffectively. However, even with a narrow construction of the treatment chamber 24, there is still enough space on the side to allow the through-air to escape.
  • the blowers 18 are arranged as circulating air blowers and are angularly offset from the vertical 82 so that the circulating air flow does not hinder the vertical through-air flow.
  • the air also in the recirculation mode by the blowers 18 according to the arrows 19 by the chamber elements 6 in is driven through the upper and lower quarters, whereas on the side, where the screens of the chambers 6 are not completely covered by the material 16, they can pass the material and therefore dry it less intensively.
  • the arrangement of the two fans on one side secures the vertical 82 (flow direction of the through air) on an oblique, e.g. at a 45 ° inclined plane 83 running through the drum axis, that the through air also influences the circulating air circuit by directing the circulating air against the lower and upper chamber elements 6, but it is advantageous if guide surfaces 80 are also provided for the forced guidance of the circulating air, which make evasion of the circulating air impossible and force it through the upper and lower chamber elements 6.
  • the angle between the planes 82 and 83 is designated oe in FIG. 2.
  • FIG. 3 shows a first embodiment of box-like chambers 106 distributed over the circumference of the drum, which — viewed in cross section — have approximately a polygonal shape.
  • the wall section 25 facing the respective adjacent chamber 106 is kinked and extends in such a way that a radially inward section 26 runs parallel to the corresponding wall of the adjacent chamber 106.
  • ACTION by these M ensures that a negligibly thin Gap between adjacent chambers 106 remains, and the air is forced to flow through the inner Sieblochwand 8, inside each chamber 106, the UT to be dried G to flow around and ultimately auzuamide again at the outer screen wall 110th
  • the radially outward part 27 of the wall section 25 encloses an angle with the part 26 in such a way that a free space 28 is formed between sections 27 of mutually adjacent chambers 106.
  • This free space 28 serves to accommodate a holding device and a tensioning device for each of the screen hole walls 110 assigned to only one chamber 106.
  • each chamber 106 can extend in the form of a slot from a central wall 30 to the lateral wall section 25. This gives the outlet opening 29 a shape that deviates from the rectangular shape, which may be undesirable. Therefore, in order to feed the dry material to a (in the manner shown) rectangular outlet opening 29, a sloping wall 31, indicated by broken lines, can extend from the side wall section 25 to the outlet opening 29.
  • the inner perforated screen wall 8 may here be placed over cylinder brackets (not shown) defining the inner circumference of the drum, so that it has an essentially completely cylindrical surface.
  • the chamber housings of each chamber 106 may have a concave shape on their side which bears against the screen hole wall 8, as can be seen from FIG. 3. It is understood, however, that with such a design, the individual chambers 106 must be tensioned very strongly against the inner screen hole wall 8 to prevent slitting.
  • the tensioning device for the radially outer screen hole wall 110 which will be described below, can simultaneously act as the tensioning device which causes the inner screen hole wall 8 to be pressed against the chamber housing of each chamber 106.
  • a rectangular frame which extends over the entire chamber housing (see FIG. 1) and which consists of two rods 11, 111 and a spring clip 32 at each end of a chamber 106, is provided for holding and tensioning the outer screen hole wall 110.
  • the chamber housing can have a small cutout on the upper side, but each drum shield 3 can also be provided with a corresponding lateral groove.
  • the arrangement of spring clips 32 helps to keep the screen fabric forming the screen hole wall 110 taut. Since the chambers 106 can be made relatively long in the manner shown in FIG. 1, it may be expedient to also provide additional spring clips 33 between the opposite ends of each chamber 106, which protrude beyond the perforated screen wall 110.
  • Each spring clip 32, 33 is pivotally about an axis 43 so that he g from the middle by means of the chamber 106 in Fi. 3 can reach the open position shown with the aid of the right chamber 106. In this open position, the sieve 110 may be loose in the manner shown, but it can also be tensioned by its inherent elasticity depending on the selected deflection of the spring clip 32.
  • a tensioning device which in the simplest case consists of a tension spring 35. If too Only one tension spring 35 is shown in FIG. 3, it is understood that in the majority of applications at least two tension springs 35 must be provided at each end of a chamber 106, but possibly also in between. Each tension spring 35 engages an anchoring pin 36 fastened to a drum shield 3 (see FIG. 1) and is hooked on the other end to the rod 11 which together with the rod 111 forms the holding device.
  • This construction ensures on the one hand that the outer perforated screen wall 110 is always tensioned and is in contact with the housing of each chamber 106 without any gap formation. In addition, this construction ensures that the perforated screen wall can be brought into its open position by simply unclamping the tensioning device 35 and so that each individual chamber 106 is easily accessible for cleaning purposes. Furthermore, a single chamber 106 can also be easily removed from the drum circumference in this way, so as to clean the inner screen hole wall 8. Handling is additionally facilitated by the longitudinal division of the chambers 106 with the help of the shields 3.
  • cylindrical or cylindrical prism-shaped chambers 6 or 106 there can be approximately three between opposite drum shields 3 corner-shaped rods 109 can be fastened with concave legs as a seat for cylindrical chambers 206.
  • Each chamber 206 consists of a plurality of cylinder brackets 38 distributed over its length, between which, for example three, longitudinal bars 39 run.
  • a sieve fabric 40 is stretched or held around these brackets 38 by means not known, known per se, this sieve 40 extending at least over an inner wall section 108, but can optionally also extend over a lateral section 125. If necessary, however, the side wall section 125 is also formed from air-impermeable material.
  • the cylindrical shape shown is not the preferred embodiment for several reasons.
  • the lateral seal between mutually adjacent wall sections 125 is not so good here, so that treatment air can escape laterally without; to come into contact with goods to be dried which are located in the interior of the chambers 206.
  • the legs of the rods 109 which are designed in cross section in the manner of an isosceles triangle, can be made relatively long in order to achieve a certain sealing effect.
  • These rods 109 therefore fulfill a multiple function as a holder for the chambers 206, as an orientation device for removing and reinserting a single chamber 206 and for sealing in the region of the side wall sections 125.
  • cylindrical chambers 206 are not preferred is in the fact that the material to be dried has a tendency to slide along the cylinder walls when the drum rotates, whereby on the one hand there is increased abrasion and on the other hand the drying may take place unevenly.
  • baffles 41 can be installed in the interior of the chambers 206 in the known manner. These baffles 41 preferably extend from the longitudinal spars 39.
  • baffles 41 g no means e - guarantees, is that the material to be dried over the length of the chambers 206 moves.
  • the baffles 41 either run helically (in the case of a passive conveyor device) or the outlet of each chamber is connected to a suction conveyor fan.
  • a worm 42 which is driven via planet wheels in a manner not known per se, is accommodated in the interior of each chamber.
  • a certain improvement in the accessibility of such chambers can be achieved by the design according to the invention.
  • a common screen fabric 210 each forming the screen hole wall, is provided for two adjacent chambers 206. It is understood that, if desired, one of the like sieve can also span more than two chambers and possibly even over the entire drum.
  • Diver- s tändlich can also be applied to polygonal chamber formations such Sieb leader.
  • the sieve 210 is designed as a frameless sieve fabric which, similar to the embodiment according to FIG. 1, has holding rods 11, 211 at both ends. Of these, the holding rod 2ll can be fastened to the drum shields 3, whereas the rod 11 is suspended in a hook-shaped holding device 43 provided on the shield 3.
  • the tensioning device does not act on one end of the sieve 210, but in the middle between two chambers 206.
  • the tensioning device consists of a rod 44 which does not necessarily reach over the entire length of the chambers 206, which is connected to a push rod 45 at its shield-side end.
  • the push rod 45 is expediently divided into two and has, in the manner shown on the right-hand side of FIG. 4, an upper sleeve part 46 which is rotatable with the push rod 45 but is axially immovably connected.
  • a nose 47 is attached to the sleeve part 46.
  • the push rod 45 slides in a spring housing 48 in which a compression spring 135 is accommodated.
  • the push rod 45 is normally pressed radially inward by this compression spring 135, so that the bar 44 rests under tension on the screen fabric 210.
  • the nose 47 slides in a slot 49 of the housing 48. If the screen hole wall 210 is now to be removed, the rod 44 is moved against the pressure of the spring 135 into the position shown in broken lines and illustrated with the full lines on the right in FIG. 4 brought, and thereby the sleeve 46 rotated by 90 ° so that the nose 46 comes to rest on the housing wall of the housing 48 thus preventing sliding back under the pressure of the spring 135.
  • the thus relaxed screen fabric 210 can then be easily gripped on the rod 11 and pulled out of the hook-shaped holding device 43. As can be seen from the right-hand illustration in FIG. 4, a radially outer opening of the chamber 206 is then cleared, so that the inside of the chamber 206 can be cleaned or the chamber 206 can even be removed from its perches 109.
  • a screen fabric 10 or 310 is advantageously provided, which is provided with openings 50 and 150, respectively.
  • the screen fabric 10 (FIG. 5A) is provided as a double fabric with a pocket-like opening 50 through which the holding rod 11 can be inserted. With such a construction, the tension is distributed relatively evenly, so that no special precautions need to be taken for the strength of the edge.
  • a reinforced edge 51 must be provided since the openings 150 provided at intervals are intended to hang in tension springs 35 (cf. FIG. 6) or other tensioning devices.
  • openings 150 can also be provided there, so that depending on the design of the machine, either a holding rod 11 is pushed into the pocket-shaped opening 50 or corresponding holding and tensioning devices are inserted into the openings 150 can be hung.
  • the openings 150 on the screen 10 of FIG. 5A can also be used to allow several tensioning and / or holding devices to act distributed over the length of the holding rod 11.
  • a reinforced edge 51 is then expediently provided in accordance with FIG. 5B.
  • a mesh 310 as shown in FIGS. 5B can be arranged, for example, as an inner perforated screen wall in that tension springs 35 act on the reinforced edge 51.
  • the inner screen hole wall does not necessarily have to be formed by a screen fabric that is common to all chambers, but that this inner wall can, if appropriate, be designed exactly as described so far with reference to the outer screen hole wall and will be described below becomes.
  • UGT forthcoming for at least the outer Sieblochwand via the A ussenrise of the drum into a plurality of angular sections divided, wherein preferably each chamber a separate Sieblochwand is assigned.
  • the screen fabric 310 is first suspended in the springs 35.
  • the chamber 6 is then inserted between two stops 52 attached to the shield. If necessary, the stops 52 can have funnel-shaped bare cones for more precise orientation of the chamber 6.
  • the outer sieve 10 is then placed over it and pulled down with the aid of quick-release fasteners 53 which are suspended in the holding rods 11 and are anchored to the shield. In this case, the quick-release fasteners 53 are pulled against the action of the tension springs 35, which tension more strongly until counter-stops 54 provided on the chamber housing abut against the stops 52.
  • the tension springs 35 interact with the tension locks 53 to form a common tensioning device for both screen hole walls 10, 310, the stops 52, 54 acting as orientation devices ensuring that the Inlet and outlet openings (cf. the opening 29 in FIG. 1) are exactly aligned with the openings 7 of the shields 3.
  • the funnel surfaces already mentioned on the stops 52 can contribute to the lateral alignment, just as the stops 52 are arranged as closely as possible on the side wall sections 225 of the chamber housing.
  • the chamber 6 is shown in the embodiment according to FIG. 6 in the open state and has walls consisting of five surface sections in a known manner. While the lower surface section 55 extends essentially perpendicular to the longitudinal axis of the chamber 6 over both chamber halves separated by the central wall 30 (see FIG. 7A), the darker hatched, adjoining left section 56 extends from there and from below (with reference to the level of the drawing) upwards and outwards until, after a pitch of the screw thus formed, a wall 57 adjoins the wall section 55 in a parallel plane.
  • an obliquely inward, lightly hatched wall section 58 (cf. FIG. 7A), to which is connected a wall section 59 parallel to this at a distance from the wall section 57.
  • the upper and lower sides of the chamber housing of the chamber 6 are expediently rounded in order to apply a more uniform tension to the respective screen cloth 10 or 310. This rounding can be done according to a circular arc, but the best uniformity results when training along a parabolic arc.
  • FIG. 7 illustrates further possible configurations with the aid of chambers 306, 406 and 506, of which the chamber 406 in side view together with a drum shield 3 from FIG. 7A can be seen.
  • the chamber 306 has a configuration of the passive, i.e. only by the rotation of the drum acting, conveyor in the kind, as it is also known from IT-PS 427 072.
  • the chamber is divided by a number of partition walls 60, which are inclined by inclined, channel-like conveyor chutes 61.
  • the material to be dried slides down one conveyor trough 61 and, at the next half turn of the drum, reaches the upper region, from where it slides into the next chamber via the adjacent conveyor trough.
  • the chamber housing of the chamber 306 can be provided with handles 62, on which schematically indicated and in a known manner designed latches 53 (see FIG. 6) act.
  • the chamber 306 is brought into its aligned position with the chambers on the other side of the respective shield, stops 154 again corresponding to the stops 54 in FIG. 6 (only one stop 154 is shown) can be provided.
  • the stop 154 is shown in an exploded illustration in FIG. 7 because it also fulfills another function. This is because a tension spring 35 can be anchored for engagement on a holding rod 11 of the outer screen hole wall 10.
  • the same arrangement may be for the support rod 11 may be hit at the other end, or it is on the right side (refer to FIG.
  • the support rod 11 is combined with the handle 62, whereby it also performs a double function there for the attack of the tension lock 53 there, but on the other hand has the consequence that the sieve 53 can only be detached from the chamber 306 after the rod has been removed from its holder on the handle 62.
  • This example shows that the respective screen hole wall does not necessarily have to be attached to a holding device of the shield, but that the holding device can also be provided on the chamber itself.
  • the stop 154 is assigned a corresponding counter-stop (not shown). A possible embodiment of the funnel-shaped side flanks of such a counter-stop 152 is shown on the chamber 406.
  • a stationary counter-stop 252 is welded to the shield 3 in the manner shown in FIG. 7A.
  • This counter stop 252 interacts with a stop 254 which is firmly connected to the chamber housing and is provided with an angled plate 63.
  • This plate 63 has a slot-shaped opening 64, in which a pawl nose 65 engages.
  • the pawl nose 65 is formed on a spring arm 66 which is attached to the stop 252.
  • the lower surface 67 of the nose 65 is slightly beveled, so that manufacturing tolerances are compensated for and this surface 67 is in any case in contact with the lower edge of the opening 64 (cf. FIG. 7).
  • the chamber 406 is fixed in a position in which the two stops 252, 254 abut one another.
  • the latch nose 65 which forms a snap lock, only needs to be pulled out of the opening 64 of the plate 63. If necessary, the pawl 65 can be assigned a locking device in order to hold it in the open position against the action of its spring arm 66.
  • FIG. 7A is only a particularly advantageous example, in which the individual chamber elements 6 or 406 can be loosened or attached quickly to the associated drum shields 3 due to the quick coupling device shown.
  • the centering device shown With the aid of the centering device shown, not only a correct fit can be ensured, but in the end also a relatively rigid construction, in which the chamber elements 6 form the stiffening ribs between the shields 3.
  • another type of releasable connection for example a screw connection, may be preferred.
  • no or only a weaker supporting structure is required.
  • this modular arrangement not only makes assembly easier, but it is also easy to expand for each machine, so that production and warehousing are also simplified and cheaper.
  • the holding device and the tensioning device for the screen hole wall 10 are not shown in detail and can be designed in accordance with one of the previously described embodiments.
  • the chambers 506 show how the sealing effect in the region of the mutually parallel and approximately radially extending side wall sections 126 can be improved by designing it as a type of labyrinth seal.
  • the wall section 126 pointing to the right has bulges 68 which engage in corresponding notches 69 in the adjacent wall 226.
  • the bulges 68 and the depressions 69 (which do not necessarily have to be triangular, but can also have a different shape, for example a wave shape) represent reinforcing beads for the side wall sections 126, 226, so that these wall sections can optionally be formed from weaker material. This not only saves costs, but also reduces the overall weight of the machine. In order not to jeopardize the removability of individual chambers 506 if the toothed sections 126, 226 are too strongly interlocked, these beads 68, 69, which preferably have a rounded shape, should have an opening angle oC that is greater than 45 ° and, for example, approximately 60 °.
  • a screen hole wall 210 is provided here, which is firmly anchored at one end, for example on a rod 211, overlaps several chambers 506 and at the other end either with a tensioning device or one of the holding devices 43 (FIG. 4 ) corresponding holding device can be connected.
  • the holding device acting at one end and the tensioning device acting at the other end can each be of the same design.
  • a tensioning arm 144 which can be pivoted about an axis 70 and is loaded against the chambers 506 by a spring (not shown).
  • a spring not shown in contrast to the round-shaped rod 44 of FIG.
  • the arm 144 is designed in the manner shown in a V-shape such that its legs lie parallel to the side wall sections 127 of these chambers.
  • the screen 210 is between the two Tensioned chambers 506, but also also fixed the position of the chamber 506.
  • each of the treatment chambers 24, 124, 224 provided with a separate unit 17, 18 for heating and distribution of air, but possibly also by treatment vapor (eg, about for peeling bean crops such as S oya bean, etc.).
  • the drum 1 is driven via its shaft 71 with the aid of a motor 72, but the drive could also take place via circumferential rings of the drum, as has already been proposed in IT-PS 427 072.
  • the material to be treated can be fed to the individual openings 7 (see FIG. 1) in the shields 3 via a channel 73, and a channel of this type, not shown, can be provided on the opposite side of the drum 1.
  • a flap 77 can also be brought into a central position between the position shown with solid lines and the position shown with dash-dotted lines, so that in addition to the circulating air, a certain amount of fresh air or another treatment gas, for example steam, is supplied.
  • a certain amount of fresh air or another treatment gas for example steam
  • the flap 77 By flipping the flap 77 into the position shown in dash-dotted lines, fresh air can be constantly drawn in for the treatment chamber 24, which, for example when the slide valve 74 is open and the position of the flap 76 shown in full lines, is either supplied to the treatment chamber 224 via the pipe 13 or in can be blown off, not shown.
  • the diagram according to FIG. 8 shows that any variations for the treatment climates in the treatment chambers 24, 124, 224 are possible through different pipe connections and / or flap or slide positions.
  • the treatment chamber for a powerful heat treatment the treatment chamber 124 for the aftertreatment, and the treatment chamber 224 for cooling.
  • Each chamber in the manner of FIG. 1 can be provided with a suction and a discharge opening for through-air operation.
  • the chamber 24 for gentle pre-drying and only the chamber 124 for a subsequent treatment process with air can be higher Temperature should be provided.
  • more than three chambers or only two may also be arranged.
  • the shields can for example be ring-shaped, the items to be treated in front of the shield in one of 8 is inside strainer free gap openings at the top of réelle admirmes- s ers collected and passed over a gutter or a pipe across the shield ring to the other side of the blade where it is distributed over just such a slot on each drum chambers.
  • this reduces the sealing effect of the shields, unless the gutter conveying the material from a drum chamber to the diagonally opposite drum chamber is covered by a surrounding shield and adjoining the shield ring.
  • the holding device could, for example, be spring-mounted awin, for example by fastening the quick-action fasteners 53 to leaf springs or rubber blocks.
  • the machine described are also conceivable, for example for cooling feed pellets or for passing a granulated adsorbent through a flue gas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
EP84110713A 1983-09-22 1984-09-07 Machine pour le traitement par la chaleur Expired - Lifetime EP0142652B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8686113042T DE3472831D1 (en) 1983-09-22 1984-09-07 Thermal-treating machine
DE8686113049T DE3477510D1 (en) 1983-09-22 1984-09-07 Heat-treating machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5146/83 1983-09-22
CH514683 1983-09-22

Related Child Applications (3)

Application Number Title Priority Date Filing Date
EP86113049.0 Division-Into 1986-09-22
EP86113042.5 Division-Into 1986-09-22
EP88106232.7 Division-Into 1988-04-19

Publications (2)

Publication Number Publication Date
EP0142652A1 true EP0142652A1 (fr) 1985-05-29
EP0142652B1 EP0142652B1 (fr) 1990-01-31

Family

ID=4288702

Family Applications (4)

Application Number Title Priority Date Filing Date
EP84110713A Expired - Lifetime EP0142652B1 (fr) 1983-09-22 1984-09-07 Machine pour le traitement par la chaleur
EP86113042A Expired EP0216346B1 (fr) 1983-09-22 1984-09-07 Machine pour le traitement thermique
EP88106232A Expired - Lifetime EP0305638B1 (fr) 1983-09-22 1984-09-07 Machine pour le traitement par la chaleur
EP86113049A Expired EP0217263B1 (fr) 1983-09-22 1984-09-07 Machine pour le traitement par la chaleur

Family Applications After (3)

Application Number Title Priority Date Filing Date
EP86113042A Expired EP0216346B1 (fr) 1983-09-22 1984-09-07 Machine pour le traitement thermique
EP88106232A Expired - Lifetime EP0305638B1 (fr) 1983-09-22 1984-09-07 Machine pour le traitement par la chaleur
EP86113049A Expired EP0217263B1 (fr) 1983-09-22 1984-09-07 Machine pour le traitement par la chaleur

Country Status (4)

Country Link
US (1) US4688336A (fr)
EP (4) EP0142652B1 (fr)
DE (2) DE3483695D1 (fr)
WO (1) WO1988004019A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2583151A1 (fr) * 1985-06-11 1986-12-12 Luxia Ltd Sechoir rotatif pour pates alimentaires
EP0226683A1 (fr) * 1985-12-16 1987-07-01 Alsthom Dispositif de séchage de matières composites humides
EP0228492A1 (fr) * 1985-12-16 1987-07-15 Alsthom Installation de séchage de matériaux composites humides
EP0381001A2 (fr) * 1989-02-02 1990-08-08 BARILLA G. e R. F.lli - Società per Azioni Système de séchage pour pâtes alimentaires ou produits similaires

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1213716B (it) * 1987-11-06 1989-12-29 Benito Pera Impianto per la tostatura di caffe'noccioline, arachidi e simili prodotti
KR100331477B1 (ko) * 1999-10-18 2002-04-09 나양수 음식 폐기물 열풍 건조기
DE102005023258A1 (de) * 2004-11-16 2006-11-23 Fan Separator Gmbh Drehtrommel zur aeroben Erwärmung rieselfähiger Feststoffe
US8123046B2 (en) * 2008-10-23 2012-02-28 Michael David Billeaud Method and apparatus for separating and removing fluids from drill cuttings
GB2491593B (en) * 2011-06-07 2014-04-16 Chinook End Stage Recycling Ltd Improvements in waste processing
KR102063765B1 (ko) * 2013-06-20 2020-03-02 엘지전자 주식회사 폐열 회수수단을 갖는 건조기
CN112229178A (zh) * 2020-10-11 2021-01-15 苏州策尼特建材科技有限公司 一种新型建筑材料干燥装置
CN112129052A (zh) * 2020-10-27 2020-12-25 湖北凯乐量子通信光电科技有限公司 一种大容量旋转立式干燥装置
CN112984965B (zh) * 2021-05-10 2021-09-10 江西省药品检验检测研究院 一种真空冷冻干燥装置
CN116538774B (zh) * 2023-07-06 2024-02-02 徐州徐工养护机械有限公司 一种沥青骨料回收用滚筒干燥机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE320526C (de) 1918-09-08 1920-04-23 Josef Janka Trockentrommel mit sektorfoermigen Taschenhorden
US1711188A (en) * 1927-07-12 1929-04-30 Braly Mfg Company Drying machine
DE693641C (de) * 1938-08-11 1940-07-16 J M Lehmann Fa Trommeltrockner mit ringfoermig angeordneten rohrartigen Einzelzellen zur Foerderung des Gutes
FR888387A (fr) * 1942-04-23 1943-12-10 Séchoir rotatif pour les graines, pulpes, poudres et pâtes alimentaires coupées
FR905375A (fr) * 1943-05-13 1945-12-03 Fava & Figli M Séchoir continu pour pâtes alimentaires courtes
DE1729402A1 (de) 1966-04-21 1971-06-16 Semperit Gummiwerk Gmbh Deutsc Trommeltrockner

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1019408A (fr) * 1950-06-02 1953-01-21 Séchoir pour matières en vrac

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE320526C (de) 1918-09-08 1920-04-23 Josef Janka Trockentrommel mit sektorfoermigen Taschenhorden
US1711188A (en) * 1927-07-12 1929-04-30 Braly Mfg Company Drying machine
DE693641C (de) * 1938-08-11 1940-07-16 J M Lehmann Fa Trommeltrockner mit ringfoermig angeordneten rohrartigen Einzelzellen zur Foerderung des Gutes
FR888387A (fr) * 1942-04-23 1943-12-10 Séchoir rotatif pour les graines, pulpes, poudres et pâtes alimentaires coupées
FR905375A (fr) * 1943-05-13 1945-12-03 Fava & Figli M Séchoir continu pour pâtes alimentaires courtes
DE1729402A1 (de) 1966-04-21 1971-06-16 Semperit Gummiwerk Gmbh Deutsc Trommeltrockner

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2583151A1 (fr) * 1985-06-11 1986-12-12 Luxia Ltd Sechoir rotatif pour pates alimentaires
EP0226683A1 (fr) * 1985-12-16 1987-07-01 Alsthom Dispositif de séchage de matières composites humides
EP0228492A1 (fr) * 1985-12-16 1987-07-15 Alsthom Installation de séchage de matériaux composites humides
EP0381001A2 (fr) * 1989-02-02 1990-08-08 BARILLA G. e R. F.lli - Società per Azioni Système de séchage pour pâtes alimentaires ou produits similaires
EP0381001A3 (en) * 1989-02-02 1990-12-27 Patrizio Fazion Drying system for pasta or similar products

Also Published As

Publication number Publication date
EP0305638A1 (fr) 1989-03-08
WO1988004019A1 (fr) 1988-06-02
EP0217263A1 (fr) 1987-04-08
EP0142652B1 (fr) 1990-01-31
EP0305638B1 (fr) 1990-11-28
EP0216346A1 (fr) 1987-04-01
DE3483695D1 (de) 1991-01-10
EP0217263B1 (fr) 1989-03-29
EP0216346B1 (fr) 1988-07-20
US4688336A (en) 1987-08-25
DE3481214D1 (de) 1990-03-08

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