EP0268546B1 - Presse zum Auspressen von Pressgut in Form von flüssigkeitshaltigen Stoffen, insbesondere Maischen - Google Patents

Presse zum Auspressen von Pressgut in Form von flüssigkeitshaltigen Stoffen, insbesondere Maischen Download PDF

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Publication number
EP0268546B1
EP0268546B1 EP87710020A EP87710020A EP0268546B1 EP 0268546 B1 EP0268546 B1 EP 0268546B1 EP 87710020 A EP87710020 A EP 87710020A EP 87710020 A EP87710020 A EP 87710020A EP 0268546 B1 EP0268546 B1 EP 0268546B1
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EP
European Patent Office
Prior art keywords
pressure
pressing
press
chambers
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87710020A
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German (de)
English (en)
French (fr)
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EP0268546A1 (de
Inventor
Karl-Heinz Quetsch
Henning Dipl.-Wirtsch.-Ing. Vetter
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Vetter Maschinenfabrik GmbH
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Vetter Maschinenfabrik GmbH
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Priority to AT87710020T priority Critical patent/ATE58088T1/de
Publication of EP0268546A1 publication Critical patent/EP0268546A1/de
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Publication of EP0268546B1 publication Critical patent/EP0268546B1/de
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/20—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using rotary pressing members, other than worms or screws, e.g. rollers, rings, discs
    • B30B9/205—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using rotary pressing members, other than worms or screws, e.g. rollers, rings, discs using a roller with radially arranged vanes dividing the pressing space in separate chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/22—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using a flexible member, e.g. diaphragm, urged by fluid pressure

Definitions

  • the invention relates to a press of the type defined in the preamble of claim 1.
  • Presses of this type are known in various embodiments (DE-C 27 14 184, 29 45 254 and 31 37 355). They enable the respective pressed material to be gently pressed out, but they work discontinuously throughout. This means that first of all their work containers, bale chambers or the like are filled with material to be pressed, then the material to be pressed is pressed and finally the remaining residue has to be removed from all the pressure chambers. On the one hand, this means the performance, i.e. the throughput of material to be pressed is not always sufficiently large, while on the other hand automation of the entire pressing process is practically impossible. A greater performance could only be achieved by enlarging the press chambers, which would, however, involve a disproportionately high amount of material and costs, is only possible within certain limits and is therefore rejected for practical reasons.
  • the invention has for its object to enable a largely continuous or automatic processing of the pressed material even in a press of the type described above, without having to forego the advantages of conventional membrane presses.
  • the invention has the advantage that, despite a simple structure, largely continuous and automatic processing of the pressed material is possible. It is also advantageous that different pressures can be provided within the individual press chambers and the pressure can be easily adapted to the conditions required in the individual case in each pressing step. This enables particularly gentle, but also quantitatively optimal processing of each pressed material.
  • the embodiment of the press according to the invention shown in FIG. 1 has a machine frame 1 on which a housing 2 for a screw conveyor 3 and an essentially cylindrical screen wall 4 are mounted.
  • a hopper 5 is mounted on the housing 2, the outlet end of which opens into an opening in the housing 2.
  • the hopper 5 can be designed as a pure hopper. However, it is also possible to arrange a mill or the like in the interior of the filling funnel 5 in order to grind the pressed material which is supplied to it, indicated by the reference number 6 and shown with dots throughout, or in some other way to prepare it for the pressing process.
  • the bottom of the housing 2 is preferably designed as a sieve 7, under which a collecting trough 8 is arranged.
  • the screw conveyor 3 is located axially and with a horizontal axis 9 below the hopper 5.
  • One end is provided with a shoulder 10 which is rotatably mounted in a stand 11 of the machine frame 1 which also supports the housing 2 and at its end which protrudes from the stand 11 carries a drive wheel 12 which can be rotated with a drive, not shown.
  • the other end of the screw conveyor 3 projects into a filling space 14 which is arranged at the corresponding end of the housing 2 and which, together with the hopper 4, the screw conveyor 3 and the housing 2, forms an entry station.
  • a substantially star-shaped support body 15 is rotatably mounted, which extends essentially over the entire axial length of the sieve wall 4 and is provided at its axial ends with end plates which are fastened on an axis 16 which is rotatably mounted on the machine frame 1 are, which can be rotated with a drive, not shown, with its axis of rotation perpendicular to the axis 9, but preferably also arranged horizontally. The rotation takes place in the direction of the arrow shown, ie clockwise.
  • the support body 15 preferably consists of a cylindrical drum, which is provided on its outer circumference with radially projecting, axially parallel intermediate walls 17, which form a multiplicity of shell-shaped press chambers 18a to 18h distributed around the circumference of the support body 15 and with their radially outside the horizontal ends up to the screen wall 4. All press chambers 18 preferably have the same center distance measured in the circumferential direction of the axis 16 and are of the same width. In the rotational position of the supporting body 15 shown in FIG. 1, the press chambers 18a and 18h are each opposite an opening of the screen wall 4, while all other press chambers 18b to 18g are covered by the screen wall 4.
  • One opening of the screen wall 4 opens into the filling space 14, while the other opening of the screen wall 4 represents a discharge station designed as a discharge opening 19.
  • the screen wall 4 could also be designed as a three-quarter cylinder and in a different way with the filling lungsraum 14 or the discharge opening 19 may be connected.
  • All press chambers 18a to 18h are equipped with press elements, e.g. flexible or rubber-elastic membranes 20 are provided, which are firmly connected to the intermediate walls 17. These membranes 20 are preferably so large that they can rest in an extreme position on the bottom of the associated press chamber, as indicated for the press chamber 18a, in another extreme position, on the other hand, as far as the surrounding screen wall 4, as shown in FIG. 1 for the membrane 20 of the press chamber 18h shows.
  • Each membrane 20 divides the press chamber 18a to 18h assigned to it into a pressure chamber 21 and a press chamber 22 in which the material 6 to be pressed is located.
  • the membranes 20 are each connected to the partition walls 17 in such a way that a pressure-tight, i.e.
  • any pressure chamber 21 remains restricted to this pressure chamber, i.e. cannot pass to one of the other pressure rooms.
  • the individual partitions 17 also reach so close to the inner wall of the screen wall 4 that when the axis 16 and the support body 15 rotate, the material to be pressed located in any pressing chamber 22 is carried along and cannot pass into any other pressing chamber.
  • a further collecting trough 23 is arranged beneath the sieve wall 4, in which the liquid passing through the sieve wall 4 during the pressing process is collected, as indicated by arrows 24 in FIG. 1. Otherwise, the part of the sieve wall 4 located between the filling space 14 and the discharge opening can be surrounded by an outer wall 25 arranged at a distance from it.
  • compressed air is used as the pressure medium, although any other gas or liquid could also serve as pressure medium.
  • the pressure is built up by means of a pressure generator, not shown, e.g. a compressor or a pump which is connected to the individual pressure chambers 21 via lines and valves, not shown.
  • the machine frame 1 is preferably mounted on wheels, not shown, so that the entire press can be moved, as is particularly desirable for the processing of grapes when they are harvested in vineyards.
  • the hopper 5 is preferably as large as is necessary for continuous or step-by-step and automatic processing of the pressed material 6.
  • the hopper 5 opens largely on the entry side of the screw conveyor 3 in the housing 2, so that when it is rotated, the material to be pressed 6 is transported along the housing 2 to the filling chamber 14. A considerable part of the liquid in the material to be pressed 6 is therefore already free during this transport of the material to be pressed and drips through the bottom of the housing 2 into the collecting trough 8, even if the transport is carried out largely without pressure and therefore is gentle on the material to be pressed.
  • This has the essential advantage that the mass or volume of the material to be pressed is already considerably reduced in the screw conveyor 3 and therefore significantly smaller, e.g. can be provided by 50% smaller bale chambers 18 than would be possible if there was no screw conveyor 3. As a result, the performance of the press is noticeably increased for substances that can be dewatered with little or no pressure.
  • the press described is suitable for pressing out a large number of liquid-containing substances, in particular agricultural and chemical products.
  • the pressing of grapes during wine production or fruit during juice production may be mentioned here, the pressed material being in the form of a mash and the residue released through the discharge opening 19 being referred to as pomace.
  • other liquid-containing substances such as mashing from all kinds of cereals, gluten from wheat and corn as well as pulps from potatoes, cassava, cassava, tapioca, etc., as they occur in the production of beer and / or starch, can be processed with the press described.
  • the embodiment according to FIG. 2 essentially differs from the embodiment according to FIG. 1 only in the position of the screw conveyor 3a, the filling chamber 14a and the discharge opening 19a, for which reason most of the other components are provided with the same reference numerals as in FIG. 1 .
  • the screw conveyor 3a in contrast to FIG. 1, is arranged directly on the bottom of the machine frame 1, the sieve wall 4 extends essentially only over five instead of six of the eight press chambers 18, so that the two press chambers 18h and 18g each extend in the region of the Filling chamber 14a are located, while the pressing chamber 18a faces the discharge opening 19a arranged above the filling chamber 14a.
  • the carrier body 15 is rotated counterclockwise, as indicated by an arrow.
  • the cylindrical part of the sieve wall 4 already ends at the intermediate wall 17 separating the press chambers 18f and 18g.
  • an essentially flat sieve wall section 26 which is arranged parallel to the machine frame 1 and extends to the stand 11. This makes it possible to provide a collecting trough 27 which extends from the stand 11 to the sieve wall 4.
  • FIGS. 3 to 6 show a further variant with regard to the position and arrangement of a screw conveyor 31 and further details of the entire press, which are also present in the same or similar manner in the embodiments according to FIGS. 1 and 2.
  • a housing 33 On a machine frame 32, a housing 33 is supported, which is penetrated by a horizontally arranged axis 34, which is rotatably supported at one end in a schematically indicated bearing 35, while the other end has an axle stub, which is shown in a further diagram table indicated bearing 36 is rotatably mounted and is connected to a rotary drive 37 which serves to rotate the axis 34.
  • a sieve wall 38 is arranged in a stationary manner, which is similar to the sieve wall 4 according to FIG. 1.
  • an opening is formed, to which a tube 39 projecting through the housing 33 is also connected, the cross section of which is movably mounted in the direction of the double arrow shown by means of a slide 40 which is connected to a schematically articulated cylinder / piston unit 41 can be closed and opened.
  • the tube 39 merges via a knee into a tube section parallel to the axis 34, which is connected to the outlet end of a housing 42 of the conveyor screw 31, the bottom of which consists of a sieve 43, under which a collecting trough 44 is arranged.
  • the axis of the screw conveyor 31 is arranged parallel to the axis 34 and connected to a rotary drive 45.
  • a hopper 46 is arranged above the entry end of the housing 42, through which the pressed material 47 shown in dotted lines is fed.
  • the housing 42 is mounted on a stand, not shown, of the machine frame 32 above the screen wall 38.
  • the collecting trough 44 is connected via a line 48 to a further collecting trough 49, which is arranged under the sieve wall 38.
  • the components 39 to 43 and 45 to 47 form an entry station.
  • a number of axially parallel pressing chambers 51a to 51h are formed between two end plates 50, which preferably have identical size and shape and are delimited laterally by essentially radial intermediate walls fastened on the axis 34.
  • Each press chamber 51 is separated by a membrane 52 into a respective pressure and press chamber 53 or 54, the membranes 52 preferably ensuring that no pressure equalization can take place between the pressure chambers 53 of the different press chambers 51.
  • the pressing chamber 51 b faces the tube 39 and the pressing chamber 51 h faces a discharge station or discharge opening, which is indicated schematically by an arrow y, whereas the pressing chamber 51 a is arranged in a so-called empty position, i.e. is not used.
  • the pressure medium supply to the various pressure chambers 53 takes place according to FIGS. 3 to 6 with the aid of a distributor arrangement 56, which e.g. has a non-rotatably mounted distributor plate 57 and a distributor plate 58 which is coaxial with this and the axis 34 and which is fastened to an end face of the axis 34 and is rotatable therewith.
  • the distributor plate 58 has as many continuous holes 59 (FIG. 4) along a circle surrounding the axis of rotation of the axis 34 at equal angular intervals as are provided on the circumference of the axis 34 press chambers 51.
  • the corresponding number, size and arrangement of the distributor plate 57 likewise have holes which are each connected to a pressure medium source via a line 61, while each hole 59 of the distributor plate 58 is each connected to a line 62.
  • the axis 34 is hollow Indianabil det and provided in its outer surface with a bore, which opens out on the one hand into an associated pressure chamber 53 and on the other hand is connected to one of the lines 62 laid inside the axis 34.
  • the angular spacings of the holes 59 correspond to the angular spacings of the pressure spaces 53. If the axis 34 is therefore stepped by means of the rotary drive 37, i.e.
  • each hole 59 of the rotating distributor plate 58 is successively aligned with all lines 61 ending at the non-rotatable distributor plate 57 and is therefore connected to another line 61 with each partial rotation.
  • the pressure built up in any pressure chamber 53 therefore depends on the rotational position of the axis 34 and the pressure prevailing in the associated line 61.
  • the non-rotatable distributor plate 57 is preferably with the piston rod 63 of a pneumatic cylinder / piston arrangement 64 fastened to the machine frame 32 connected so that it can be lifted from the rotatable distributor plate 58 by appropriate control of the same before each turning cycle in the direction of the double arrow shown in FIG. 3 and then connected to the latter again in a pressure-tight manner.
  • the lines 61 are preferably in the pressure-free state during the rotation phases.
  • Fig. 6 shows a partial section through the axis 34 and the sieve wall 38. From this it can be seen that, similar to the embodiments according to FIGS. 1 and 2, radial intermediate walls 66 are provided which limit the individual press chambers 51 and with the axis 34 a rotatable, star-shaped Form support body.
  • radial intermediate walls 66 are provided which limit the individual press chambers 51 and with the axis 34 a rotatable, star-shaped Form support body.
  • flat iron 67 is used, which on the intermediate walls 66 and end plates 50 e.g. are fastened by means of screws or the like and form closed, essentially rectangular clamping rings which clamp the membranes 52 between themselves and the supporting body.
  • the membrane parts to be located under the clamping rings can also be glued to the intermediate walls 67, end plates 50 and flat iron 67 with the aid of a pressure-medium-tight adhesive.
  • the radially outer ends of the intermediate walls 67 expediently do not extend all the way to the inner circumference of the screen wall 38 in order to avoid damage due to friction. Instead, radially running, preferably somewhat flexible wipers 68, which are in frictional contact with the screen wall 38, are connected to them, which on the one hand prevent the transfer of the pressed material from one pressing chamber to another when the axis 34 is rotated, and on the other hand strip off pressed material stuck on the inner circumference of the screen wall 38 .
  • These wipers 68 are made of Teflon, for example, so that they rotate on the sieve when the axis 34 is rotated Sand wall 38 until tiny gaps of 1/10 mm thick have formed.
  • FIG. 7 schematically shows a control device 69 which is suitable for the pneumatic control of the pressure in the various pressure chambers and for the electrical and / or pneumatic control of the other parts.
  • a control device 69 which is suitable for the pneumatic control of the pressure in the various pressure chambers and for the electrical and / or pneumatic control of the other parts.
  • eight holes 59 are provided in the distributor plate 58, seven of which can be connected to one of the lines 61 a and 61 c to 61 h, while a hole 59 remains free.
  • Each line 61c to 61h is connected via a valve 70, which can be set with the aid of a manometer 71 and a rotary knob, to a pressure medium source 72, e.g.
  • a compressor and is therefore at a pressure dependent on the setting of the associated valve 70, while the line 61a is connected to a schematically illustrated vacuum source 73, e.g. a pump.
  • a control panel 74 also containing the manometer 71, three adjustable timers 75, 76 and 77 are also provided, which can be set to selectable time intervals.
  • the time switch 75 is used, for example, to set the switch-on phases of the rotary drive 45 for the screw conveyor 31, the time switch 76 to set those time intervals during which the pressures set with the valves 70 are to be present in the lines 61c to 61h, and the time switch 77 for setting the time interval during which the line 61 a, which is also connected to lines 61 c to 61 h via T-pieces, is to be at a preselected negative pressure.
  • control panel 74 there is a multitude of switches for the independent electrical or pneumatic control of the various drives and cylinder / piston units, in particular a main switch 80, an emergency switch 81, an on / off switch 82 for the rotary drive 37 and a switch 84 for the automatic operation of the entire press.
  • valves 70 are set such that when the compressor 72 is switched on, lines 61c to 61g have pressures of 0.2 or 0.5 or 1.0 or 1 , 5 or 2.0 bar overpressure, ie there are increasing pressures.
  • the valve 70 of the line 61h h is set so that an excess pressure of 0.5 bar is present when the compressor 72 is switched on.
  • the vacuum pump 73 connected to line 61 a delivers a negative pressure of, for example, 0.3 bar.
  • the cylinder / piston arrangement 41 is actuated by means of a switch 85 and the slide 40 is thereby withdrawn.
  • a further switch 86 the rotary drive 45 of the screw conveyor 31 is switched on until the pressing chamber 51b located under the tube 39 is filled.
  • the screw conveyor is then switched off and the slide 40 is pushed forward again, as a result of which the filling process for the pressing chamber 51b is completed.
  • the cylinder / piston arrangement 64 is also switched on with a switch 90 in order to advance the distributor plate 57, and then the compressor 72 is switched on with a switch 87 in order to generate the pressure predetermined by the valves 70 in the pressure spaces 53.
  • the press chamber 51 located at the discharge station is unloaded, while the other press chambers 51c to 51g are pressed.
  • the membranes 52 are gradually curved outwards in the manner shown in FIG. 5 and the associated pressed goods are pressed against the screen wall 38. The liquid squeezed out thereby runs down on the outside of the sieve wall 38 or drips directly into the collecting trough 49.
  • the switch 87 is operated again to switch off the compressor 72 again.
  • the vacuum source 73 connected to the line 61a is now switched on in order to generate a negative pressure in the pressure chambers 53 of all the compression chambers 51a and 51c to 51 and to withdraw their membrane branches 52 to such an extent that that in the Pressing spaces 54 relaxes existing pressed material and no greater frictional resistance is generated during the subsequent rotation of axis 34.
  • a preselected period of time which is particularly of the type, e.g. Hardness, depending on the membrane material, this process is finished.
  • a particular advantage of the press described is that 51 different pressing pressures can be provided in the individual pressing chambers, which leads to a gentle but also complete pressing of the pressed material.
  • a pre-pressing at low pressure can be carried out first in the pressing chambers 51 and 51, then a main pressing at medium pressure in the pressing chambers 51e and 51f and finally a subsequent pressing at high pressure in the pressing chamber 51g.
  • the switches, timers, etc. described with reference to FIG. 7 are preferably connected to a stepping mechanism arranged below the control panel 74, by means of which the various work steps can be carried out automatically one after the other when the switch 83 is switched over to automatic operation. In this case, a single actuation of the switch 83 is sufficient to make the press work automatically for any period of time. It is then only necessary to use time switches 75, 76 and 77 to set the desired values for the cycle time of the screw conveyor 31, the pressing time and the evacuation time desired before the axis 34 is turned further.
  • the control of the rotary movement of the axis 34 by exactly one clock step is controlled with the aid of a limit switch 92 (FIG.
  • the limit switch 92 is connected to the circuit of the rotary drive 37 and shuts it down again after one clock step.
  • the stepwise rotation of the axis 34 could be controlled with the aid of the circuit shown schematically in FIG. 3 and connected to the rotary drive 37 designed as a motor.
  • One connection of the rotary drive 37 is connected to the other connection of the rotary drive 37 via a voltage source 126, the switch 82 and the limit switch 92.
  • the limit switch 92 is bridged by a parallel key switch 127, which is normally held in the open position by a spring, while the limit switch 92 is normally held in the closed position by a spring.
  • the axis 34 rotates until one of the cams 93 opens the limit switch 92, or remains in the rest position when the limit switch 92 is already opened by a cam 93. If the axis 34 is then to be switched one step further, the pushbutton switch 127 is briefly closed until the cam 93 drops from the limit switch 92 and closes again. When the next cam 93 reaches the limit switch, the key switch 127 is already open again, so that the axis 34 comes to a standstill after exactly one clock step.
  • the control for the exemplary embodiments according to FIGS. 1 and 2 can take place in a corresponding manner. It is only important to ensure that there is no empty chamber corresponding to the pressing chamber 51a, i.e. a pressure line 61 is needed more (Fig. 1) or that two adjacent bale chambers are filled practically at the same time and therefore the associated pressure chambers can always remain at normal pressure (Fig. 2).
  • Fig. 8 shows an embodiment in which the forced conveyance of the pressed material to the press is carried out with a slide 96 instead of with a screw conveyor.
  • the tube 39 and the housing 42 are designed in accordance with FIG. 3.
  • the material to be pressed is fed into the housing 42 by means of a hopper 97.
  • the slide 96 is slidably mounted in the housing 42 and connected to a piston rod 98 of a cylinder / piston arrangement 99 which is guided through an end wall of the housing 42.
  • the material to be pressed is conveyed to the tube 39 by appropriate actuation of the cylinder / piston arrangement 99, with a considerable amount of liquid being removed from the material to be pressed, as when using a screw conveyor, before it reaches the press chambers.
  • the conveying of the pressed material can be carried out largely without pressure and thus gently men.
  • the latter is expediently connected to a flexible bellows 100 which is fastened to the housing and which covers the space under the filling funnel 97 when the slide 96 is advanced.
  • the screen wall 38 which is essentially designed according to FIGS. 3 to 5, has an entry station in the form of an upper connecting piece 104 and an adjoining filling funnel 105, which widens conically towards the connecting piece 104 and is designed as a sieve Has inner jacket 106 and a closed outer jacket 107 surrounding it.
  • a slide 108 which is connected to the piston rod 109 of a cylinder / piston arrangement 110 and which, depending on its control, can close or release the cross section of the hopper.
  • the liquid flowing out of the material to be pressed which is due to gravity, is collected in the cavity between the inner and outer sheaths 106 and 107 and discharged through a line 111.
  • FIG. 10 shows an embodiment which is particularly suitable for juicing grapes for the production of red wine. It is desirable to leave the grape mash in a closed container for a few days and only then to press it.
  • FIG. 10 provides a screen wall 114, which may be designed essentially in accordance with FIG. 9 and has a filler neck 115 which can be connected to a filler funnel.
  • the sieve wall 114 has only a few sieve-shaped sections 116 with the rest of the closed surface, the sieve-shaped sections 116 being arranged along the circumference of the sieve wall 114 at approximately the same angular intervals as the press chambers 118 fastened on an axis 117 corresponds.
  • hood-like covers 119 are provided, which are firmly connected to the outer jacket of the sieve wall 114 and form closed collecting channels 120 for the liquid squeezed out during the pressing process.
  • the covers 119 are either provided with removable lids or connected to a common, likewise closable collecting line.
  • a particularly important process when pressing liquid-containing substances is the so-called crumbling.
  • This is understood to mean the loosening or crumbling of the compacted material that has already been compacted between individual pressing operations.
  • this crumbling can be achieved simply by rotating the axes 16 or 34 or 117 with the press chambers attached to them, one or more times, by a full revolution between the individual pressing processes.
  • the rotation and the preferably existing wipers 68 (FIG. 6) or also the intermediate walls of the press chambers which extend up to the screen wall ensure sufficient loosening of the pressed material.
  • the axis carrying the press chambers is first rotated by at least one full revolution between two cycle steps or after the end of a press process after all membranes have been withdrawn.
  • these can be provided with hinged or slidable lids which are closed with cylinder / piston arrangements or the like before the crumbling process.
  • a pivotable flap 122 is indicated schematically in FIG. 5, which can be opened and closed with a cylinder / piston arrangement in the direction of an arrow 123, as in the control of the press described above by manual operation, for example with a further switch 124 (FIG. 6) is operated. If the crumbling is not required, the flap 122 can remain open at all times, as was assumed in the above explanation of the operating mode.
  • the invention is not limited to the exemplary embodiments described, which can be modified in many ways. This applies in particular to the devices used for the automatic control of all processes, but also to the number and arrangement of the press chambers, inlet and discharge openings and the devices used to feed the material to be pressed from the hopper to the press chambers. Also the pressures given, for example, in the various lines and pressure chambers can be adapted in any way to the material to be pressed in individual cases. Furthermore, it is not absolutely necessary to use the means described with reference to FIGS. 1 to 3, 8 and 9 to force the material to be pressed to the press chambers or to perform a different type of pre-juicing.
  • the described screw conveyors 3, 3a and 31 and the slide 96 offer the particular advantage that the volume of the material to be pressed can be significantly reduced before entering the press chamber, so that overall a considerable increase in performance is achieved, and that the entire press including manufacture and operate the forced funding as a small, compact system that is integrated into an integrated unit leaves, which has only a small space requirement.
  • the sieve walls 4,38 and 117 have holes, the diameter of which is, for example, 2 mm when processing grapes. When processing other materials, larger or smaller holes can also be provided. In addition, instead of round holes, those with other hole shapes, in particular triangular or slot-shaped holes, can also be provided. Furthermore, it is possible to use only some of the existing press chambers for the pressing process, especially if e.g. in the case of automatic operation, the total amount of mash obtained is smaller than the capacity of the press. Finally, the individual processes could be separated from each other, e.g. first pressed, then sucked, then filled or unloaded, then switched on and then the work cycle is repeated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Press Drives And Press Lines (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Soy Sauces And Products Related Thereto (AREA)
EP87710020A 1986-11-13 1987-11-12 Presse zum Auspressen von Pressgut in Form von flüssigkeitshaltigen Stoffen, insbesondere Maischen Expired - Lifetime EP0268546B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87710020T ATE58088T1 (de) 1986-11-13 1987-11-12 Presse zum auspressen von pressgut in form von fluessigkeitshaltigen stoffen, insbesondere maischen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3638839 1986-11-13
DE19863638839 DE3638839A1 (de) 1986-11-13 1986-11-13 Kontinuierliche mehrkammermembranpresse

Publications (2)

Publication Number Publication Date
EP0268546A1 EP0268546A1 (de) 1988-05-25
EP0268546B1 true EP0268546B1 (de) 1990-11-07

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Application Number Title Priority Date Filing Date
EP87710020A Expired - Lifetime EP0268546B1 (de) 1986-11-13 1987-11-12 Presse zum Auspressen von Pressgut in Form von flüssigkeitshaltigen Stoffen, insbesondere Maischen

Country Status (4)

Country Link
US (1) US4872404A (enrdf_load_stackoverflow)
EP (1) EP0268546B1 (enrdf_load_stackoverflow)
AT (1) ATE58088T1 (enrdf_load_stackoverflow)
DE (2) DE3638839A1 (enrdf_load_stackoverflow)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2629754B1 (fr) * 1988-04-11 1992-12-24 Gregoire Ets Pressoir pneumatique
US5173196A (en) * 1989-12-08 1992-12-22 Macrae Dennis P Dewatering and compacting equipment with high pressure pumping arrangement
IT225840Z2 (it) * 1991-09-19 1997-01-24 Velo Spa Pressa pneumatica a membrana per la spremitura particolarmente di uva
US5802961A (en) * 1994-04-15 1998-09-08 Fmc Corporation Methods and apparatus for particulate heat exchange and transfer
DE19501116C2 (de) * 1995-01-17 1997-01-16 Bernhard Bosch Saftpresse, insbesondere Wein- oder Obstpresse
DE19649661A1 (de) * 1996-11-29 1998-06-04 Pall Corp Maischeverfahren
US6916425B2 (en) 1996-11-29 2005-07-12 Pall Corporation Mashing process
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Also Published As

Publication number Publication date
DE3638839C2 (enrdf_load_stackoverflow) 1990-10-04
ATE58088T1 (de) 1990-11-15
DE3766076D1 (de) 1990-12-13
DE3638839A1 (de) 1988-06-09
US4872404A (en) 1989-10-10
EP0268546A1 (de) 1988-05-25

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