WO2000013779A1 - Dispositif de malaxage - Google Patents

Dispositif de malaxage Download PDF

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Publication number
WO2000013779A1
WO2000013779A1 PCT/JP1999/004792 JP9904792W WO0013779A1 WO 2000013779 A1 WO2000013779 A1 WO 2000013779A1 JP 9904792 W JP9904792 W JP 9904792W WO 0013779 A1 WO0013779 A1 WO 0013779A1
Authority
WO
WIPO (PCT)
Prior art keywords
kneading
cross
deformed
inlet
passage
Prior art date
Application number
PCT/JP1999/004792
Other languages
English (en)
Japanese (ja)
Inventor
Matabee Maeda
Kazuie Yamada
Akira Uchida
Masaaki Miyata
Shinichi Igawa
Kazuhiro Kojima
Original Assignee
Maeda Corporation
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 Maeda Corporation filed Critical Maeda Corporation
Publication of WO2000013779A1 publication Critical patent/WO2000013779A1/fr

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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
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/432—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa

Definitions

  • the present invention relates to a technique of kneading a fluid material to be kneaded by passing it through a deformed passage ⁇ having a changed cross-sectional shape, and in particular, to changing the cross-sectional shape of the material to be kneaded,
  • This technology relates to kneading by applying compressive force and shear force and repeating joining and splitting.
  • mixers such as arm type, chi type, roll type etc. depending on the kneading method. Suitable to do.
  • the traditional methods of kneading such as hand-made udon or hand-made noodles, are very efficient because the kneaded material is compressed and stretched, folded back and stacked, and then compressed and stretched. It can be understood that If the folding and compression processes are performed 30 times, it is equivalent to kneading even before and after 2 to the power of 30,000,000 times.
  • the kneading method is performed in which three or four layers are compressed before compression, the numerical value corresponding to 2 to the 30th power in the above example is 3 to the 30th power or 4 to the power. It can be assumed that the efficiency is further improved to the 30th power.
  • the present applicant has already proposed a kneading method and a kneading apparatus described in Japanese Patent Application Laid-Open No. 9-253647, as a technique taking such problems into consideration.
  • This is a technique in which a fluid material to be kneaded is kneaded by passing it through a plurality of deformed passages having changed cross-sectional shapes.
  • the material to be kneaded is pressurized and sent from the inlet of each deformed passage.
  • Layers are layered, compressive and shear forces are applied to the material, the material is rolled with the applied force, the layers are stacked, the compressive and shear forces are applied again to the material, and rolling and stacking are repeated. Is a technique for kneading.
  • the apparatus body used here is composed of a plurality of elements connected in series in the direction of the deformed passage, and each element includes a plurality of arranged deformed passages, and the entrance of each of the deformed passages is located at one end of the element.
  • the outlet is on the other end side of the element, and the outlet of one adjacent element is connected so that the inlet of the other element intersects with the outlet of the adjacent element. It is configured to perform division.
  • the shape of the element entrance is vertical length a and horizontal length a / n
  • the shape of the outlet is opposite to the shape of the inlet, and n rectangles with a horizontal length of a and a vertical length of a are lined up. Therefore, the material to be kneaded is press-fitted into each of the deformed passages, which are rectangular entrances, and is compressed vertically to 1Zn at the exit and rolled n times horizontally to overlap the n layers. Then, at the entrance of the next element, it is further divided into lZn and press-fitted into each deformed passage. Overlaps n x n layers. Assuming that the number of elements is m, the exit overlaps a layer corresponding to n raised to the m-th power.
  • the kneading can be efficiently performed by applying a compressive force and a shearing force while changing the cross-sectional shape of the material to be kneaded.
  • the efficiency for kneading can be greatly increased, and further, there is obtained an advantage that direct moving parts can be eliminated and wear and damage can be prevented at the same time.
  • the element has a structure with a plurality of deformed passages whose cross-sectional shape changes continuously, the overall shape of the element is complicated and the manufacturability is not good.
  • the manufacture of this element there is not much problem if it is manufactured while welding using a metal plate.
  • the die for the die there is a problem in terms of the die for the die.
  • the cross-sectional areas are the same, there is a problem that a complicated mechanism needs to be punched out. Disclosure of the invention
  • the present invention has been made in consideration of the above points, and adopts a concept of actively changing the cross-sectional area of the deformed passage, thereby enabling three-dimensional kneading of the material to be kneaded. It is an object to provide a kneading device capable of further improving the kneading efficiency.
  • Another object of the present invention is to provide a kneading apparatus in which elements constituting a main part of the kneading apparatus have a structure suitable for production by resin molding.
  • an apparatus for kneading a material having fluidity comprising an apparatus main body having a plurality of deformed passages having a cross-sectional shape changed in a longitudinal direction, wherein an apparatus main body is provided between an inlet side and an outlet side of the apparatus main body.
  • the configuration was changed gradually.
  • an apparatus for kneading a material having fluidity having a plurality of deformed passages whose cross-sectional shapes are changed in a longitudinal direction, the apparatus being connected to an inlet side of the apparatus main body, and having an inside of the deformed passage.
  • Material feeding means for pressurizing and feeding the material to be kneaded into the apparatus, and a merging / dividing means for causing the material to be kneaded flowing through each deformation passage to merge and split is provided between the inlet side and the outlet side of the apparatus main body.
  • At least one of the deformed passages has a configuration in which the sectional area gradually changes from the inlet side to the outlet side of the main body of the device.
  • a portion having a gradually decreasing cross-sectional area or a portion having a gradually increasing cross-sectional area may be provided in the middle of the deformation passage.
  • the deformed passage may be set so that the cross-sectional area gradually decreases from the inlet side to the outlet side of the apparatus main body.
  • a plurality of junction dividing means may be provided at intervals between the inlet side and the outlet side of the apparatus main body.
  • the main body of the apparatus is composed of a plurality of elements connected in series in the direction of the deformed passage, and the inlet end of each element is formed with each inlet of the deformed passage in an arrangement pattern, and the outlet end of each element.
  • the outlets of the deformed passages are formed in a different arrangement pattern from the arrangement pattern of the inlets, and the cross-sectional shape and cross section of each deformed passage from each inlet to each outlet are different. It is also possible to adopt a configuration in which the area changes gradually. You.
  • the merging / dividing means formed in the apparatus main body is constituted between an outlet of each deformed passage of one element connected to each other and an inlet of each deformed passage of the other element. It is preferable to set.
  • the element may have a structure in which a plurality of passage unit elements forming respective deformation passages of the element are formed, and the passage unit elements are combined to constitute one element.
  • the element has an element in which the cross-sectional area of the deformed passage gradually decreases from the inlet to the outlet of the element, and the element has a cross-sectional area of the deformed passage that increases from the inlet to the outlet of the element.
  • c case can also be configured to include a Ereme down bets gradually increases, it is preferable to connect the two elements alternately.
  • FIG. 1 is a schematic configuration diagram of a kneading apparatus according to the present invention.
  • FIG. 2 is a perspective view showing elements of the apparatus main body according to the present invention.
  • FIG. 3 is a perspective view showing a connection mode between elements of the device main body according to the present invention.
  • FIG. 4 is a plan view of an element according to the present invention.
  • FIG. 5 is an end view on the inlet side of the element according to the present invention.
  • FIG. 6 is a sectional view taken along line AA of FIG.
  • FIG. 7 is an end view of the outlet side of the element according to the present invention.
  • FIG. 8 is a process chart showing a change in the cross-sectional shape of the material to be kneaded.
  • FIG. 9 is a perspective view of an element according to another embodiment of the present invention.
  • FIG. 10 is a perspective view showing a connection mode using an element according to still another embodiment of the present invention.
  • the material input means is composed of a so-called hopper 10.
  • the material pressurizing means comprises a pump 20 for pressurizing concrete or the like, and pressurizes and feeds the material to be kneaded to the material kneading means (apparatus body 30).
  • the apparatus main body 30 serving as the material kneading means is composed of a plurality (three in the figure) of elements 31, 31, 31 in which identical components are connected in series.
  • the material to be kneaded is kneaded by continuously passing through each element of the apparatus main body 30, and is discharged from the discharge port 34.
  • a flange F for connecting adjacent elements 31 is provided as necessary. If the element 31 is made of metal, it can be connected by welding, so this flange is not always necessary.However, if the element is made of a material that cannot be welded, such as resin, a flange with bolt holes is required. Preferably, it is provided.
  • each element includes a plurality (two) of deformed passages 1 and 2 arranged in parallel, and of the inlet and outlet of each of the deformed passages 1 and 2, one of the adjacent elements 31 The inlet of the other element 31 is connected to the outlet. Then, at the connection between the outlet and the inlet, merging / dividing means for merging and dividing the materials to be kneaded are respectively formed.
  • FIG. 3 shows this state.
  • the entrances and the exits of the two deformed passages 1 and 2 are arranged side by side, and when viewed from the end face side, the entrances and the exits are as shown in FIGS. 5 and 6. Both are formed in a square outline as a whole, with partitions 3 and 4 provided at the center. However, the entrance partition 3 and the exit partition 4 are designed to cross each other by 90 degrees.
  • the elements 31 and 31 having the same configuration may be connected in series as shown in the illustrated example. This makes it possible for In a state where the elements 31 and 31 are connected to each other, a means for joining and dividing the materials to be kneaded is formed at the connection portion.
  • the cross-sectional shape of each of the deformed passages 1 and 2 changes continuously from the inlet to the outlet.
  • the size and cross-sectional shape of each of the deformed passages 1 and 2 are continuously changed from the inlet to the outlet.
  • the entrance of each of the deformed passages 1 and 2 is a vertically long rectangle as shown in Fig. 5, the intermediate part between the entrance and the exit is a square as shown in Fig. 6, and the exit is a square. As shown in FIG. 7, it is formed in a horizontally long rectangle.
  • the inlet and outlet of each of the deformed passages 1 and 2 have the same cross-sectional area, and the center of the inlet and outlet has a half cross-sectional area as shown in FIG.
  • the material to be kneaded passing through each of the deformed passages 1 and 2 has its cross-sectional shape gradually changed from a vertically long rectangle to a square, and then gradually to a horizontally long rectangle. Then, at the exit, two horizontally long rectangles are vertically overlapped, and at the entrance of the next element 31, they are bisected to the left and right.
  • This changing state of the material to be kneaded is a confluence and a division in the meaning of the present invention.
  • a kneading method using the kneading apparatus S having such a configuration will be described below with reference to FIG.
  • the change of the cross section of the material to be kneaded when two elements 31 are connected (two stages) is modeled by focusing on the area of the inlet, middle and outlet of each element 31. This is shown schematically.
  • FIG. 8 shows how the cross section of the material to be kneaded changes when two (two-stage) elements 31 having two deformed passages 1 and 2 are connected as shown in FIG.
  • the material to be kneaded which is fed by being pressurized by the pressure pump 20, is introduced at the inlet portion by the first-stage element 31.
  • A, B is divided into two.
  • the cross section of the material to be kneaded at this time is a vertically long rectangle.
  • the materials A and B to be kneaded are both changed to squares, and further, at the outlet part of the first stage, both are changed to horizontally long rectangles. Therefore, the materials A and B to be kneaded undergo a continuous compression action by the corresponding inner wall surfaces of the deformed passages 1 and 2 in the process of changing from a vertical rectangle ⁇ a square to a horizontal rectangle, and their cross-sectional shapes Will be changed. As a result, a continuous convection phenomenon occurs in the material to be kneaded itself, particularly in the radial direction of the cross section.
  • the material to be kneaded that has come out of the first-stage outlet A and B have a form that is divided into four, A and B and A and B, as shown in the figure. Then, the materials A and B to be kneaded are pressed into the respective deformed passages 1 and 2. At this time, at the entrance of the second stage, A and B are merged so as to overlap each other vertically in each of the deformed passages 1 and 2, and their cross-sectional shapes are both vertically elongated rectangles.
  • the materials A and B to be kneaded are changed into a square as a whole, and in the outlet part, both are changed into a horizontally long rectangle. Also in the second stage, the materials A and B to be kneaded are changed from a vertically long rectangle to a square to a horizontally long rectangle. In the longitudinal direction of the body while undergoing continuous compression and shearing action. This will change the surface shape. As a result, a continuous convection phenomenon occurs in the material to be kneaded, particularly in the radial direction of the cross section and in the longitudinal direction of the deformed passage, whereby the secondary kneading action is performed.
  • the third stage is not shown in the drawing, in FIG. 8, as shown by the phantom line X1 in the cross-sectional shape of the second stage outlet of the material to be kneaded,
  • the imaginary line X1 is divided into left and right parts, and A, B, A, and B that overlap vertically overlap.
  • kneading is performed in the same manner as in the first and second stages. In this way, the material to be kneaded is kneaded very efficiently by the three-dimensional kneading action.
  • FIG. 9 is a perspective view showing another embodiment of the element.
  • the element 31 is divided into two parts in consideration of manufacturability.
  • it is composed of two passage unit elements 31A and 31B that respectively form the deformed passages 1 and 2 of the element 31 and are combined with the passage unit elements 31A and 31B. By doing so, it has a structure that constitutes one element 31.
  • a connecting flange F1 is a flange for connecting the elements 31 in the longitudinal direction.
  • the flange F1 may be provided with a coupling flange.
  • the element is composed of the unit elements 31A and 3IB in this way, it is extremely effective when the element is made of resin.
  • the intermediate portion between the inlet and the outlet has a small cross-sectional area (about 1Z2 at the inlet) as described above.
  • molding can be easily performed using the same. That is, since the deformed passage 1 is tapered from the inlet to the middle part, and is also tapered from the outlet to the middle part, basically only two mold dies are required, and the molding is performed. In addition to the properties, it is easy to manufacture the mold.
  • the cross-sectional size (cross-sectional area) of the intermediate portion of the deformed passage is larger than the cross-sectional size of the inlet or the outlet in terms of both kneading efficiency and resin moldability. It can be said that a smaller value is also preferable. Further, when only the resin moldability is considered, it can be said that the size of the cross section of the intermediate portion is preferably such that one side thereof is equal to or less than the length of the short side of the rectangular shape of the entrance or exit.
  • FIG. 10 it is also very suitable to adopt an element 31C having different directions (twisting directions) of the deformed passages 1 and 2, as shown in FIG.
  • the element 31C is configured such that the outlet of the left deformed passage 1 is located on the lower side, and the outlet of the right deformed passage 2 is located on the upper side.
  • the direction of deformation path is opposite to that of element 31.
  • the exit of element 31 is rotated 90 degrees to the right as viewed from the entrance
  • the element 31 C is rotated 90 degrees to the left as viewed from the entrance. It is a form that did.
  • the use of the element 31 C having such a configuration has an effect of further increasing the kneading efficiency.
  • a straight through passage may be formed in a part of the deformed passage. This is because such a straight through path is not formed at all when the two types of elements are connected as shown in FIG. 10, and the kneading efficiency according to the theory can be obtained.
  • the element 31 has an element in which the sectional area of the deformed passages 1 and 2 gradually decreases from the inlet to the outlet of the element, and the element 31 has a sectional area of the deformed passage that gradually increases from the inlet to the outlet of the element. It is also possible to adopt a configuration including an element that becomes larger.
  • a configuration may be adopted in which both elements are alternately connected and used. That is, the element with a small cross-sectional area at the outlet and the element with a small cross-sectional area at the inlet are connected to each other at the outlet, and then the element with a large cross-sectional area at the outlet and the cross-sectional area at the inlet are large.
  • the outlet and inlet of the large element may be connected to each other.
  • the cross-sectional area of the intermediate portion in the deformed passages 1 and 2 is set to 12 at the inlet or the outlet, but may be set to 1/2 or less as necessary. Of course may be 1 Z 2 or more. Further, the position where the cross-sectional area becomes the smallest may be shifted in the length direction of the deformation passage.
  • the present invention can be applied to an element having three or more deformed passages. .
  • the kneading efficiency is improved as the number of partitions for forming a plurality of deformed passages is increased, but the kneading efficiency is significantly improved even in one deformed passage.
  • the degree of fluidity and particle size of the material to be kneaded it may be better not to subdivide the inlet part. Further, it is preferable to set the number of divisions and the size of the sectional area according to the viscosity and plasticity of the material to be kneaded.
  • the illustrated embodiment shows an example in which three elements (three in FIG. 1) are provided, it goes without saying that more elements may be connected if necessary.
  • a joint element may be used to bend from that portion and connected so as to form a meandering shape as a whole. By doing so, the length can be shortened accordingly.
  • the device main body 30 is configured to connect a plurality of elements.
  • the device main body 30 may be integrally configured from the beginning.
  • the material to be kneaded can be applied to various materials requiring kneading other than mortar and concrete, as long as it has appropriate fluidity.
  • the apparatus main body 30 is arranged vertically, a hopper for material input is provided at the upper part thereof, and a discharge amount adjusting means for the kneaded material ⁇ storage means and the like are provided below. It can also be.
  • the present invention it is possible to knead the material to be kneaded three-dimensionally by adopting the concept of actively changing the cross-sectional area of the deformation passage whose cross-sectional shape changes in the longitudinal direction. As a result, the kneading efficiency can be further improved. In addition, by changing the cross-sectional area, an excellent effect can be obtained in that the element constituting the main part of the kneading apparatus can have a structure suitable for production by resin molding. Industrial applicability
  • the present invention can be used for kneading or mixing one or more kinds of mixers for producing concrete or mortar or other fluid or plastic materials. Further, the present invention is suitable for mass production because the entire apparatus has a simpler configuration than existing mixers and the like.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

L'invention concerne un dispositif de malaxage permettant le malaxage tridimensionnel d'un matériau fluidique, de manière à augmenter l'efficacité de l'opération. Ce dispositif a une conception qui se prête à la fabrication, par moulage de résines, d'éléments qui constituent la partie principale du dispositif proprement dit, lequel comprend un corps (30) ayant une pluralité de passages (1, 2) dont la section varie dans le sens longitudinal, un système d'alimentation forcée de matériau (20) relié au côté admission du corps (30), pour l'alimentation forcée du matériau à malaxer, via les différents passages, et un système de convergence et de division (3, 4) placé entre les côtés admission et évacuation du corps, qui assure la convergence et la division du matériau à malaxer s'écoulant via les différents passages. Au moins l'un des passages présente une section transversale à variation progressive entre le côté admission et le côté évacuation du corps. En l'occurrence, il est possible d'ajouter un système d'alimentation forcée de matériau permettant d'appliquer une pression au matériau à malaxer et de l'introduire dans le dispositif.
PCT/JP1999/004792 1998-09-04 1999-09-03 Dispositif de malaxage WO2000013779A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10/251611 1998-09-04
JP10251611A JP2000070691A (ja) 1998-09-04 1998-09-04 混練装置

Publications (1)

Publication Number Publication Date
WO2000013779A1 true WO2000013779A1 (fr) 2000-03-16

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Application Number Title Priority Date Filing Date
PCT/JP1999/004792 WO2000013779A1 (fr) 1998-09-04 1999-09-03 Dispositif de malaxage

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WO (1) WO2000013779A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4713354B2 (ja) * 2006-01-31 2011-06-29 前田建設工業株式会社 連続混合器
JP6353672B2 (ja) * 2014-03-18 2018-07-04 Ｋｂセーレン株式会社 バーティカルスタティックミキサー

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS3819694B1 (fr) * 1962-04-04 1963-09-27
JPS39437B1 (fr) * 1961-05-31 1964-01-16
JPH09253467A (ja) * 1996-03-20 1997-09-30 Maeda Corp 混練方法および混練装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS39437B1 (fr) * 1961-05-31 1964-01-16
JPS3819694B1 (fr) * 1962-04-04 1963-09-27
JPH09253467A (ja) * 1996-03-20 1997-09-30 Maeda Corp 混練方法および混練装置

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