EP0046569B1 - Procédé et appareil pour mélanger des solides avec des liquides - Google Patents

Procédé et appareil pour mélanger des solides avec des liquides Download PDF

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Publication number
EP0046569B1
EP0046569B1 EP81106427A EP81106427A EP0046569B1 EP 0046569 B1 EP0046569 B1 EP 0046569B1 EP 81106427 A EP81106427 A EP 81106427A EP 81106427 A EP81106427 A EP 81106427A EP 0046569 B1 EP0046569 B1 EP 0046569B1
Authority
EP
European Patent Office
Prior art keywords
mixing
liquid
zone
solid materials
glue
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
Application number
EP81106427A
Other languages
German (de)
English (en)
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EP0046569A3 (en
EP0046569A2 (fr
Inventor
Herbert Dürr
Werner Christen
Helmut Müller
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.)
Draiswerke GmbH
Original Assignee
Draiswerke GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE3032039A external-priority patent/DE3032039C2/de
Priority claimed from DE19813105549 external-priority patent/DE3105549A1/de
Application filed by Draiswerke GmbH filed Critical Draiswerke GmbH
Publication of EP0046569A2 publication Critical patent/EP0046569A2/fr
Publication of EP0046569A3 publication Critical patent/EP0046569A3/de
Application granted granted Critical
Publication of EP0046569B1 publication Critical patent/EP0046569B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/565—Mixing liquids with solids by introducing liquids in solid material, e.g. to obtain slurries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/62—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis comprising liquid feeding, e.g. spraying means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7179—Feed mechanisms characterised by the means for feeding the components to the mixer using sprayers, nozzles or jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F35/92—Heating or cooling systems for heating the outside of the receptacle, e.g. heated jackets or burners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F35/95—Heating or cooling systems using heated or cooled stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/0227—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer
    • B27N1/0236—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer with the stirrers rotating about an horizontal axis, e.g. in consecutive casings
    • B27N1/0245—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer with the stirrers rotating about an horizontal axis, e.g. in consecutive casings with a single stirrer shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F2035/98—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades

Definitions

  • the invention relates to a method for mixing solids with liquids, in particular for gluing wood chips according to the preamble of claim 1 and a device for carrying out this method according to the preamble of claim 5.
  • Such methods and devices are known from DE-PS 2 057 594 and DE-AS 2 113 960 (corresponding to US-PS 3734471).
  • These wood chip glue mixers have revolutionized chip glueing because in them, in an extremely small space, the glue was distributed exceptionally fine on the surface of the chips, resulting in a considerable saving in glue and also in installation costs compared to the previously usual, large-volume ones Thrust or spin and vortex mixers was achieved.
  • the mechanism of action in these so-called ring mixers is such that the mixing material is accelerated by a mixing mechanism that is driven with a high degree of criticality in such a way that it moves in the form of a relatively thin mixing material ring in a helical manner on the inner wall of the mixing container.
  • the glue is introduced directly into this mix ring, specifically in the embodiments according to the publications mentioned by the hollow mixer shaft and liquid feed tubes protruding radially therefrom and immersed in the mix ring or in another embodiment according to DE-PS 2134305 by liquid addition pipes which are stationary are attached in the container wall and are guided through this into the interior of the mixing container and end with their outlet openings in the mixture ring.
  • the invention is therefore based on the object of providing a method of the generic type and a device of the generic type, the damage to the solids largely being avoided and better liquid distribution being achieved.
  • the essence of the invention lies in the fact that the acceleration of the chips extends over a relatively long period of time in comparison with the known ring mixers, that is to say it takes place much more slowly.
  • the acceleration forces i.e. the forces leading to possible chip damage, significantly reduced. So there is a continuous, temporally stretched acceleration from a shear mixing movement through a centrifugal and vortex mixing movement to a ring mixing movement.
  • the glue is partly added in the shear mixing movement of the chips and then in the centrifugal and whirl mixing movement of the chips, i.e. H.
  • the advantageous, high-intensity glue distribution takes place on the surface of the chips in a mix ring.
  • the conically widening of the mixing container in the acceleration zone continuously creates the necessary increased volume in which the chips can be distributed from the comparatively dense packing during the push mixing movement into a loosened volume during the spinning and mixing movement.
  • a sufficiently large radius of the mixing container is then again available in the mixing zone, which is necessary so that the tangential accelerations required for the formation of the mixing material ring are generated.
  • the measures according to the invention enable a particularly good transition from the thrust movement to the centrifugal and whirling movement to the ring movement.
  • the wood chips are whirled extremely strongly by practically the entire cross section of the mixing container at this point due to the air serving as carrier gas for the glue in the area of the glue addition, so that here the glue is distributed very evenly on the chip surfaces .
  • energy i.e. the energy required to mix a predetermined weight of wood chips with a predetermined weight of glue is significantly reduced.
  • Claims 5 to 13 reflect the constructive possibilities for realizing the method measures according to Claims 1 to 4 in a particularly advantageous manner.
  • the mixers shown in the drawing differ only in the area on the right in the drawing, the mixer shown in FIG. 1 is shown closed in its area corresponding to FIG. 1.
  • the mixers each have a mixing container 1, which consists of an inner trough 2 forming the inner wall thereof and a cooling jacket 3 surrounding the inner trough and forming the outer wall.
  • the mixing container 1 is closed at its ends by end walls 4.
  • a mixed material feed funnel 6 is provided which opens tangentially from above into the interior 7 of the mixing container 1 enclosed by the inner trough 2 and the end walls 4 and 5.
  • At the other end - on the left in FIGS. 1 and 2 - there is also a tangentially discharging mix outlet funnel 8.
  • the mixing container 1 is divided in half in the horizontal plane, the upper half 9 and the lower half 10 of the mixing container 1 being held together on one long side by hinge joints 11 and on the opposite long side by toggle locks 12 so that they can be swung open and apart.
  • a mixer shaft 13 is arranged coaxially, which is mounted in bearings 14, 15 and can be driven by an electric motor, not shown, via a V-belt pulley 16 which is non-rotatably mounted on the mixer shaft 13.
  • Balancing disks 17, 18 are also mounted on the mixer shaft 13 outside the mixing container 1, but in the vicinity of the end walls 4, 5.
  • threaded bushings 19 are attached, in which hollow mixing tools 20 are screwed.
  • a cooling water supply pipe 21 is arranged, with a cooling water pipe 22 branching off into each hollow mixing tool 20, so that the cooling water through the cooling water supply pipe 21 and the branching cooling water pipes 22, through the interior of each mixing tool 20 in between the cooling water supply pipe 21 and the mixer shaft 13 located annular space 23 flows.
  • the cooling water passes through a cooling water connection 24, which is provided on the right in FIGS. 1 and 2, into the mixer shaft 13, the cooling water inflow in direction a into the cooling water supply pipe 21 and the cooling water outflow in direction b from the annular space 23.
  • the bearings 14, 15 are supported on pedestals 25, 26.
  • the area of the mixing container 1 over which the mixed material feed funnel 6 extends in the longitudinal direction of the mixing container 1 is cylindrical and forms a feed zone A for the mixed material, usually therefore wood chips.
  • feed tools are mounted on the mixer shaft 13, which in the embodiment according to FIG. 1 are feed tools 27 designed in the manner of blades and in the embodiment according to FIG. 2 a feed tool 28 designed like a screw.
  • the feed tools 27 or 28 serve to convey material falling into this cylindrical section 29 of the mixing container 1 through the feed hopper 6 in a primarily axially directed pushing movement into the next, conical section of the mixing container.
  • This section 30 which widens conically in the direction of flow 31 of the mixing container 1, that is to say in the shape of a truncated cone, forms an acceleration zone B for the mixture.
  • This conical section 30 is followed by a likewise cylindrical section 32 of the mixing container 1, which forms a mixing zone C which extends as far as the mixture outlet hopper 8 and an ejection zone D which extends over the axial length of the outlet nozzle 8.
  • the conical section 30 widens from the radius r 29 to the radius r32 of the cylindrical section 32.
  • the ratio of the radii r 29 to r 32 is 0.6 to 0.8, preferably about 0.75.
  • the opening angle ⁇ of the conical section 30 is approximately 8 to 15 °, preferably approximately 10 °.
  • the axial length ratio of acceleration zone B to mixing zone C is approximately 1: 2.
  • the mixing tools are designed with a considerably smaller radial extent than in the cylindrical section 32.
  • the mixing tools present in this acceleration zone B are provided with the reference number 20 ', the radial length of these mixing tools 20' from the beginning of the acceleration zone B, that is to say from the end of the feed zone A, to the end of the acceleration zone B, that is until the beginning of the mixing zone C, increases steadily, as can be seen from the drawing.
  • liquid addition pipes 33 (FIG. 1) or 34 (FIG. 2) open, in particular for the addition of glue to wood chips.
  • the liquid addition tubes 33 end approximately flush with the inner wall of the conical section 30 of the mixing container 1 formed by the inner trough 2.
  • the liquid can be supplied to them without pressure, as is common practice, for example in DE-OS 2 738,971 (U.S. Patent 4,183,676).
  • the liquid can also be fed to them under pressure.
  • atomization nozzles 35 are attached to the inner ends of the liquid addition tubes 33, as is known, for example, from DE-PS 1 213 385 (corresponding to US Pat. No. 3 163 403).
  • the liquid addition pipes 33 are arranged substantially in the front portion of the acceleration zone B as viewed from the input zone A.
  • the liquid addition tubes 34 protrude to different degrees into the interior 7 of the mixing container 1, the first liquid addition tube 34 ′, seen again from the feed zone A in the direction of passage 31, extending radially farthest from the inner wall into the interior while the In the direction of flow 31 subsequent liquid addition pipes 34 ", 34" 'and 34 “” each extend less deeply from the wall into the interior 7, so that the last liquid addition pipe 34 "" is again approximately flush with the inner wall.
  • the liquid supply can take place in the same way without pressure or under pressure, the liquid emerging in any case at the radially inner end of the respective liquid addition tube 34.
  • the liquid addition pipes 33 and 34 lie in the vertical axis plane of the mixing container 1.
  • the liquid outlet openings 36 are thus arranged on a line which forms an angle ⁇ with the longitudinal axis 37 of the mixing container 1, which angle is in any case significantly larger than a.
  • ß is about 20 to 25 °.
  • a throttle valve 38 is arranged on the mixing material discharge funnel 8 in a conventional manner, which is articulated on its upper, axially parallel edge by means of swivel joints 39 on the mixing container 1 and by the pressure of the mixing material from the closed position shown in FIG 40 can be pivoted so that the mixture outlet opening is opened more or less, so that in turn the mixing tools 20 moving in the direction of rotation 41 throw the mixture through the outlet outlet opening that is then more or less open into the outlet nozzle 8.
  • a motor-adjustable counterweight 42 is attached to the outside of the throttle valve 38, as is known in detail from patent application P 2 923 502 (US Ser. No. 154 098).
  • This motor-adjustable counterweight serves to superimpose the existing possibility that the throttle valve opens in accordance with the pressure of the material to be mixed in the mixing container 1, the further possibility of changing the closing pressure present in each open position of the throttle valve 38 by adjusting the counterweight 42.
  • the mixer shaft 13 is driven at high speed, so that there is a far supercritical speed, at least in the mixing zone C.
  • the critical speed is defined in that when it reaches the radially outer ends of the mixing tools 20, an acceleration corresponding to the acceleration due to gravity acts.
  • the mixing ends so that corresponding acceleration forces can be exerted Tools 20 and 20 'in the vicinity of the inner wall of the mixing container 1. This applies in particular to the mixing tools 20 arranged in the mixing zone C, since here the mixing material ring 43 is relatively thin and the mixing tools 20 must protrude into this mixing material ring 43 in order to be able to operate again To exert acceleration forces on the wood chips forming the mix ring 43.
  • pressurized gas can of course be used as an additional atomization aid.
  • liquid addition nozzles 44 intended for the addition of glue to wood chips, which are flush with the inside of the inner trough 2 of the mixing container 1, ie do not protrude into the interior 7 of the mixing container 1.
  • these liquid addition nozzles 44 open predominantly tangentially into the interior 7.
  • These nozzles are so-called two-component nozzles, through which liquid glue, which is supplied through a glue supply line 45, and compressed air, which is supplied through a compressed air line 46, are sprayed into the interior 7 in a finely divided manner.
  • the centrifugal and whirling movement of the chips is significantly supported by the air sprayed in through the liquid addition nozzles 44, which not only serves as a carrier for the glue, that is to say for the glue division, but also substantially loosens the chips.
  • the compressed air is supplied to the liquid addition nozzles 44 at a pressure in the range from 2 to 6 bar, preferably at a pressure from 2.5 to 4 bar.
  • compressed air is supplied to the liquid addition nozzles 44 in a ratio of 2 to 5 standard m 3 / m 3 chips, preferably 2.5 to 3.5 standard m 3 air per m 3 Chips.
  • the conical section 30 widens from the radius r 29 to the radius r 32 of the cylindrical section 32'.
  • the ratio of the radii r 29 to r 32 is 0.55 to 0.7, preferably about 0.6 to 0.65.
  • the opening angle a 'of the conical section 30 is approximately 12 to 20 °, preferably approximately 18 °.
  • the axial length ratio of acceleration zone B to mixing zone C is approximately 1: 2.
  • the mixing tools are also designed there with a considerably smaller radial extension than in the cylindrical section 32 '.
  • the mixing tools present in this acceleration zone B ' are provided with the reference number 20 ", the radial length of these mixing tools 20" being from the beginning of the acceleration zone B', that is to say from the end of the feed zone A ', to the end of the acceleration zone B'. , ie up to the beginning of the mixing zone C ', increases approximately continuously, as can be seen from FIG. 5.
  • the mixing tools are designed in a blade-like manner to produce tangential movements of the material to be mixed and are therefore designated by the reference number 20 "'.
  • a glue addition device 47 which works according to the centrifugal principle. It has two centrifugal disks which are connected to one another in a rotationally fixed manner, namely an inner centrifugal plate 48 and an outer centrifugal plate 49, which between them delimit a gap 51 which is largely radial to the central longitudinal axis 50 of the glue addition device 47.
  • the outer that is, the centrifugal plate 49 facing the inner wall of the mixing container 1 merges into a tubular section 52 in which a likewise tubular centering section 53 is fixedly arranged by means of some radial webs 54.
  • the inner centrifugal disc 48 has a centering collar 55, by means of which it is held radially and axially in the tubular centering section 53.
  • the width c of the largely annular disk-shaped gap 51 can be changed by a corresponding length of the tubular centering section 53 - or by inserting washers at the separation point between the centering collar 55 and the centering section 53.
  • a conventional electric motor 56 is used to drive the centrifugal disc 48, 49, which is screwed to a short support frame 57, which in turn is screwed onto a pipe socket 58 which penetrates the inner trough 2 'and the cooling jacket 3' of the mixing container 1 ', the latter of which The inside diameter is somewhat larger than the outside diameter of the tubular section 52.
  • This support frame 57 consists of a few webs 59 extending parallel to the axis 50 and ring flanges 60, 61, which are respectively attached at the ends and which are connected to a corresponding flange 62 of the pipe socket 58 or the connecting flange 63 of the electric motor 56 are detachably screwed by means of screws 64.
  • the centrifugal plates 48, 49 are screwed non-rotatably to the shaft journal 66 of the motor 56 by means of a threaded screw passing through the centering collar 55 coaxially to the axis 50, a filler piece 67 being provided, which is axially supported on the one hand against the shaft journal 66, and this in turn in the centering section 53 engages, which is supported axially via a collar 68 against the filler 67, so that when the threaded screw 65 is tightened, the inner centrifugal plate 48 with its centering section 53 of the outer centrifugal plate 49 and thus the latter are firmly clamped to the shaft journal 66. So that the centrifugal plate is axially fixed while defining the width c of the gap 51 and non-rotatably connected to the shaft journal 66.
  • annular disk 69 On the webs 59, in the vicinity of the ring flange 61 facing the electric motor 56, an annular disk 69 is fastened, to which a cylindrical ring channel 70, which is closed toward it, is screwed, which into the glue space 71 between the tubular section 52 and the centering section 53 flows openly.
  • a threaded connection piece 72 opens into the side of the annular channel 70, to which a glue supply line (not shown) can be connected.
  • the gap 51 does not run exactly radially, but in the form of a truncated cone with a very large opening angle or very small base angle ⁇ of approximately 5 to 10 °, which corresponds to an opening angle of 170 to 160 °.
  • the angle ⁇ can, for example, be selected such that it is equal to a '/ 2 if the glue addition device 47 is arranged at the transition from the conical section 30' to the cylindrical section 32 '. In this case, based on the longitudinal section of the mixer shown in FIG. 5, the glue addition device 47 is arranged such that its longitudinal axis 50 is inclined at an angle of a / 2.
  • the glue is added to zone B 'in such a way that glue is metered into a ring channel 70 from a pump, not shown, via a glue supply line, also not shown, from where it runs down into the glue space 71, as indicated by flow arrows 73 .
  • glue is accelerated radially strongly and expelled through the gap 51 and leaves the latter in the form of a mist at a very high tangential speed.
  • the rotational speed of the centrifugal plate is usually 2800 rpm, which corresponds to a circumferential speed of the centrifugal plate at the outlet of the gap 51 of slightly more than 20 m / sec with a diameter of the centrifugal plate 48, 49 of 140 mm.
  • the glue is therefore distributed extremely finely and introduced into the material, in particular the chips, from the outside at a very high speed.
  • part of the glue is deposited on the inner wall of the inner trough 2'. Since the interior wall has a relatively low temperature due to the good cooling of the mixer, condensate water condenses here, which leads to a thinning of the deposited glue, so that it can be particularly easily absorbed by passing wood chips. Since there are coarse chips rather than fine chips or dust in the wall area, these coarse chips are glued relatively more strongly, which is desirable.
  • a mixture ring 74 is formed on the inner wall of the mixing container 1', in which the wood chips and the glue are thoroughly mixed.
  • the mixing tools 20 ′′ or 20 ′ run past the inner centrifugal plate 48 in the area of the glue addition device 47. If the mixing material ring 74 was also formed in this area of the mixing container 1 in its initial stage, it would Swipe past the inside of the inner centrifugal plate 48. Due to the fact that the outer centrifugal plate 49 is also driven at high speed, no chips can get into the space, which is only a few millimeters wide, between the inner wall of the inner trough 2 'and the centrifugal plate 49. If such a If the ring is already partially formed, the glue mist is applied to this mixture ring from the outside.
  • the glue addition device 47 can be supplied with the glue without pressure, which enables particularly precise metering in a known manner.
  • centrifuge plates 48, 49 are tapered in their outer circumference towards the exit of the gap, so that the centrifugal plates 48, 49 as a whole do not have a cylindrical ring edge on which mixed material, that is to say chips, could be stowed.
  • the chips can therefore run smoothly past the inside of the inner spin plate 48.
  • At least one web-like fan blade 75 can be arranged on the outer centrifugal plate 49, which improves the cleaning effect of the rotating centrifugal plate 49 towards the inner wall of the inner trough 2 '.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dispersion Chemistry (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Accessories For Mixers (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Claims (13)

1. Procédé pour le mélange de matières solides en vrac avec des liquides, en particulier pour l'encollage de copeaux de bois ou analogue, avec un mouvement intensif des matières solides pendant l'apport de liquide et un malaxage consécutif du liquide et des matières solides dans un anneau de matière de mélange, caractérisé en ce que les matières solides sont accélérées de manière constante à partir d'un mouvement de poussée, par l'intermédiaire d'un mouvement d'accélération et de turbulence, les matières solides étant étirées de manière conique pendant l'accélération, l'apport de liquide s'effectuant pendant cette accélération et en ce que seulement à la suite de l'apport de liquide, l'accélération s'effectue à une vitesse d'anneau de matière de remplissage.
2. Procédé selon la revendication 1, caractérisé en ce que le liquide est pulvérisé avec l'air comme matière support sous pression dans les matières solides.
3. Procédé selon la revendication 1, caractérisé en ce que le liquide est amené aux matières solides de l'extérieur sous la forme d'un brouillard pulvérisé approximativement sous la forme d'un disque.
4. Procédé selon la revendication 3, caractérisé en ce que le liquide est accéléré dans une fente tournant à une grande vitesse angulaire et ayant approximativement la forme d'une rondelle annulaire.
5. Dispositif pour la réalisation du procédé selon la revendication 1, au moyen d'un récipient de mélange dans lequel est disposé de manière coaxiale un arbre d'outil de mélange équipé d'outils de mélange et entraîné à une grande vitesse angulaire, qui est muni à une extrémité dans la zone d'une zone d'amenée pour les matières solides d'une trémie d'amenée de matière de mélange et à l'autre extrémité d'une trémie d'évacuation de matière de mélange, qui est muni dans une zone faisant suite à la zone d'amenée d'au moins un dispositif d'apport de liquide et qui dans une autre zone disposée à la suite présente une zone de mélange dans laquelle les matières solides humidifiées sont mélangées sous la forme d'un anneau de matière de mélange, caractérisé en ce que, entre la zone d'amenée (A, A') et la zone de mélange (C, C'), est disposée une zone d'accélération (B, B') constituée par une section (30,30') du récipient de mélange (1,1') s'étendant de manière conique dans la direction de parcours (31, 31'), les outils de mélange (20', 20", 20"') augmentant de manière constante selon leur longueur radiale dans ladite zone d'accélération (B, B').
6. Dispositif selon la revendication 5, caractérisé en ce que le rapport du rayon (rz9, rz9,) de la section cylindrique (29, 29') du récipient de mélange (1, 1') formant la zone d'amenée (A, A') au rayon (r32, r32,) de la section cylindrique (32, 32') du récipient de mélange formant la zone de mélange (C, C') vaut de 0,55 à 0,8.
7. Dispositif selon la revendication 5, caractérisé en ce que la section conique (30, 30') du récipient de mélange (1,1') a un angle d'ouverture (a, a') de 8 à 20°.
8. Dispositif selon la revendication 5, caractérisé en ce que les dispositifs d'amenée de liquide (44) sont constitués sous forme de buses binaires.
9. Dispositif selon la revendication 5, caractérisé en ce que le dispositif d'amenée de liquide (47) présente une fente (51) sensiblement en forme de disque annulaire, limitée par deux disques d'accélération (48, 49) pouvant être entraînés en rotation et ouverte à sa périphérie extérieure, le disque d'accélération extérieur (49) étant disposé à proximité directe de la paroi intérieure du récipient de mélange (1').
10. Dispositif selon la revendication 9, caractérisé en ce que la distance (c) des disques d'accélération (48, 49) est réglable.
11. Dispositif selon la revendication 9, caractérisé en ce que sur la face extérieure du récipient de mélange (1) est flanqué un moteur électrique (56) dont les bouts d'arbre (66) sont reliés directement avec les disques d'accélération (48, 49).
12. Dispositif selon la revendication 9, caractérisé en ce qu'un canal annulaire fixe (70) débouche dans une zone de liquide (71) formée sur les disques d'accélération (48, 49) et débouchant dans la fente (51) en vue de l'amenée de liquide.
13. Dispositif selon la revendication 9, caractérisé en ce que le disque d'accélération extérieur (49) présente au moins une aîlette de ventilateur (75) s'étendant jusqu'à la proximité de la paroi.
EP81106427A 1980-08-26 1981-08-19 Procédé et appareil pour mélanger des solides avec des liquides Expired EP0046569B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE3032039 1980-08-26
DE3032039A DE3032039C2 (de) 1980-08-26 1980-08-26 Verfahren und Vorrichtung zum Beleimen von Holzspänen
DE3036346 1980-09-26
DE19803036346 DE3036346A1 (de) 1980-08-26 1980-09-26 Verfahren und vorrichtung zum beleimen von holzspaenen
DE19813105549 DE3105549A1 (de) 1981-02-16 1981-02-16 Verfahren und vorrichtung zum beleimen von holzspaenen
DE3105549 1981-02-16

Publications (3)

Publication Number Publication Date
EP0046569A2 EP0046569A2 (fr) 1982-03-03
EP0046569A3 EP0046569A3 (en) 1984-05-23
EP0046569B1 true EP0046569B1 (fr) 1986-07-16

Family

ID=27188841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81106427A Expired EP0046569B1 (fr) 1980-08-26 1981-08-19 Procédé et appareil pour mélanger des solides avec des liquides

Country Status (5)

Country Link
US (1) US4390285A (fr)
EP (1) EP0046569B1 (fr)
JP (1) JPS5771629A (fr)
DE (1) DE3174930D1 (fr)
FI (1) FI812580L (fr)

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DE3304129A1 (de) * 1983-02-08 1984-08-09 Draiswerke Gmbh, 6800 Mannheim Verfahren und mischer zum kontinuierlichen beleimen von aus holz-spaenen, -fasern od. dgl. bestehendem mischgut
PL142347B1 (en) * 1984-02-28 1987-10-31 Biuro Studiow I Projektow Energetycznych "Energoprojekt" Flow-through mixer
US5580170A (en) * 1995-10-06 1996-12-03 Ferro-Tech, Inc. Mixing and conditioning machine
US6517232B1 (en) 1996-05-20 2003-02-11 Becker-Underwood, Inc. Mixing systems
US6162496A (en) * 1996-05-20 2000-12-19 Blue; David Method of mixing
US5626421A (en) * 1996-05-28 1997-05-06 Campbell; Craig C. Blender construction
US5887640A (en) * 1996-10-04 1999-03-30 Semi-Solid Technologies Inc. Apparatus and method for semi-solid material production
US5881796A (en) * 1996-10-04 1999-03-16 Semi-Solid Technologies Inc. Apparatus and method for integrated semi-solid material production and casting
JP3209941B2 (ja) * 1997-04-28 2001-09-17 花王株式会社 混合方法および混合装置
CN1115215C (zh) 1998-07-24 2003-07-23 吉布斯压铸铝股份有限公司 半固态铸造的设备和方法
US6292457B1 (en) 1999-03-31 2001-09-18 Eastman Kodak Company Recordable optical media with a silver-gold reflective layer
US6349570B1 (en) * 1999-04-14 2002-02-26 Merkle Engineers, Inc. In-barrel wetting screw charger
US6551401B1 (en) 2000-10-19 2003-04-22 Becker-Underwood, Inc. Machine for coloring landscaping material
AT410298B (de) * 2001-06-11 2003-03-25 Bacher Helmut Vorrichtung zur befüllung einer in einem gehäuse gelagerten schnecke und verfahren zum betrieb einer solchen vorrichtung
US7896638B2 (en) 2003-02-27 2011-03-01 M & F Technology Co., Ltd. Mixing and pulverizing device, melting method for mixing, and method of molding cellulose material impregnated with binder
DE10347052A1 (de) 2003-10-07 2005-05-04 Schenkmann Piel Engineering Gm Verfahren zur Herstellung von Faserplatten aus Holzfasern
ITMO20040127A1 (it) 2004-05-25 2004-08-25 Imal Srl Procedimento di incollaggio di frammenti o trucioli di legno per osb e apparato di incollaggio relativo.
JP5085929B2 (ja) * 2006-12-27 2012-11-28 株式会社ツカサ 粉粒体混合装置
DE102009057916B4 (de) * 2009-05-15 2015-04-02 Siempelkamp Maschinen- Und Anlagenbau Gmbh Verfahren und Vorrichtung zum kontinuierlichen Mischen von Fasern mit einem Bindemittel
US9340741B2 (en) * 2009-09-09 2016-05-17 Gas Technology Institute Biomass torrefaction mill
IT1399772B1 (it) 2010-04-30 2013-05-03 Imal Srl Apparato per l'iniezione di componenti chimici in un flusso di materiale legnoso incoerente
US7883263B1 (en) 2010-08-30 2011-02-08 Wenger Manufacturing, Inc. Preconditioner for extrusion systems
US9713893B2 (en) * 2013-07-09 2017-07-25 Wenger Manufacturing, Inc. Method of preconditioning comestible materials using steam/water static mixer
PL404773A1 (pl) * 2013-07-18 2015-01-19 Ajh047 Spółka Z Ograniczoną Odpowiedzialnością Sposób nanoszenia mikrocząstek metalu na materiał polimerowy, urządzenie do realizacji sposobu, materiał polimerowy z mikrocząsteczkami metalu oraz zastosowanie materiału polimerowego
US20180242605A1 (en) * 2015-08-26 2018-08-30 Satake Corporation Superheated steam sterilization apparatus
WO2017216140A2 (fr) * 2016-06-14 2017-12-21 Interbran Systems Ag Mélangeur
CN106985255B (zh) * 2017-05-15 2019-07-02 中南林业科技大学 农林加工剩余物基无机复合材步级施胶装置及施胶方法

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US4015829A (en) * 1973-09-01 1977-04-05 Wilhelm Lodige Apparatus for applying glue to fiber material
DE2738971A1 (de) * 1977-08-30 1979-03-22 Draiswerke Gmbh Verfahren und vorrichtung zum beleimen von holzspaenen

Also Published As

Publication number Publication date
FI812580L (fi) 1982-02-27
EP0046569A3 (en) 1984-05-23
DE3174930D1 (en) 1986-08-21
US4390285A (en) 1983-06-28
EP0046569A2 (fr) 1982-03-03
JPS5771629A (en) 1982-05-04

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