WO2001017684A1 - Procede de broyage et de separation de cereales et machine de broyage et de separation de cereales - Google Patents

Procede de broyage et de separation de cereales et machine de broyage et de separation de cereales Download PDF

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Publication number
WO2001017684A1
WO2001017684A1 PCT/JP2000/006078 JP0006078W WO0117684A1 WO 2001017684 A1 WO2001017684 A1 WO 2001017684A1 JP 0006078 W JP0006078 W JP 0006078W WO 0117684 A1 WO0117684 A1 WO 0117684A1
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WO
WIPO (PCT)
Prior art keywords
zone
chamber
crushing
grinding
classification
Prior art date
Application number
PCT/JP2000/006078
Other languages
English (en)
Japanese (ja)
Inventor
Tadashi Ninomiya
Shujiro Shiraiwa
Hiroaki Kanazawa
Original Assignee
Tadashi Ninomiya
Shujiro Shiraiwa
Hiroaki Kanazawa
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 Tadashi Ninomiya, Shujiro Shiraiwa, Hiroaki Kanazawa filed Critical Tadashi Ninomiya
Priority to AU68732/00A priority Critical patent/AU6873200A/en
Priority to EP00956988A priority patent/EP1219353A1/fr
Priority to CA002384343A priority patent/CA2384343A1/fr
Publication of WO2001017684A1 publication Critical patent/WO2001017684A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
    • B02C13/08—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor and acting as a fan
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/10—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft and axial flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/002—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with rotary cutting or beating elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
    • B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/24—Passing gas through crushing or disintegrating zone
    • B02C23/32—Passing gas through crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone

Definitions

  • the present invention relates to a crushing and classifying method for cereals and the like and a crushing and classifying machine for cereals and the like in which crushed substances such as cereals such as soybeans and rice, shells and ores are crushed to a desired particle size.
  • the first and second rotating bodies supported on a rotating shaft are accommodated in a casing provided with a raw material inlet on one side, and a pair of these rotating bodies is provided.
  • a crushing chamber is formed between the rotating body of the above and the constituent chamber of the casing.
  • a raw material passage interval such as a through-hole communicating the pulverizing chamber and the charging port is provided on the first rotating body, and a through-hole is provided at an appropriate position of the second rotating body along the rotating spindle. It is configured to communicate with an outlet provided with a hole and an absorbing device.
  • the crusher described in Japanese Patent Publication No. 7-838040 utilizes the fact that the swirling speed of particles in a grinding chamber changes as the distance from the first rotating body or the second rotating body increases.
  • the raw material particles are rubbed together to perform friction grinding. Therefore, when the raw material is initially introduced into the crusher, if the raw material is in a large mass, the surface area that rubs with the adjacent particles is small, so it takes time to grind. Problem.
  • the crushed particles are sucked by the suction device through the through hole provided in the rotating second rotating body and taken out to the discharge port, the crushed raw material adheres around the through hole.
  • the opening area of the through-hole was narrowed in a short time, so that the efficiency of the mill was reduced, and further, the through-hole was closed in a short time, so that the pulverization was impossible.
  • the present invention can reliably prevent the passage from being blocked by the pulverized material and making it impossible to pulverize in a short time, and achieve a desired particle size in a short time. It is an object of the present invention to provide a crushing and classifying method for cereals and the like and a crushing and classifying machine for cereals and the like, which can be crushed and classified into crushed materials, has a simple structure and is easy to maintain.
  • the present invention has a classification zone surrounded by a frusto-conical inner circumference that is continuous downstream of the grinding zone surrounded by a cylindrical inner circumference and whose diameter is reduced in the downstream direction.
  • the material to be pulverized is crushed by collision with the stirring and crushing blade, and is further finely crushed by using the stirring action of the centrifugal airflow. And a grinding step of feeding the mixture into the classification zone; and, inside the classification zone, among the pulverized materials sent from the grinding zone by rotating the stirring and classification blade at high speed around the central axis thereof, the particle size is relatively coarse. Those with a large mass have a frusto-conical shape while being crushed and stirred by the centrifugal airflow generated by the stirring classification plate. Moved to the peripheral surface side and returned to the grinding zone along the slope of the inner peripheral surface, and those with relatively small particle size and small mass are put downstream by a spiral airflow generated in the center of the classification zone in the axial direction.
  • the particle size adjustment process for adjusting the particle size of the product constitutes a method for crushing and classifying cereals and the like.
  • the present invention relates to a pulverizing chamber casing having a cylindrical pulverizing chamber formed therein, a side casing having a material input port formed upstream of the pulverizing chamber casing, and a large-diameter upstream port downstream of the pulverizing chamber casing.
  • a crushing chamber consisting of a classification chamber casing having a truncated cone-shaped classification chamber having an end communicating with the downstream end of the small diameter side and a crushed material discharge port communicating with the suction duct in the axial direction.
  • a rotor rotating shaft rotatably mounted on the side casing so as to rotate about the central axis of the grinding chamber, and rotatably driven by a drive source external to the grinding chamber; fixed to the rotor rotating shaft; At least one of a plurality of stirring and crushing blades for radially providing a plurality of stirring and crushing blades for stirring and crushing the material to be crushed supplied from the material input port of the side casing of the crushing chamber in the crushing chamber.
  • a plurality of stirring classifying blades each having a radially arranged stirring classifying rotor constitute a classifier for crushing grains and the like.
  • FIG. 1 is a process chart of a first embodiment of the present invention.
  • FIG. 2 is a partially cutaway front view of the first embodiment of the present invention.
  • FIG. 3 is an enlarged sectional view of a main part of the first embodiment of the present invention.
  • FIG. 4 is a cross-sectional view taken along line 4-4 in FIG.
  • FIG. 5 is a cross-sectional view taken along line 5-5 in FIG.
  • FIG. 6 is an explanatory view of a stirring and crushing rotor according to the first embodiment of the present invention.
  • FIG. 7 is a sectional view taken along the line 7-7 in Fig. 6.
  • FIG. 8 is an explanatory diagram of a stirrer classifier according to the first embodiment of the present invention.
  • FIG. 9 is an explanatory diagram at the time of pulverization of the first embodiment of the present invention.
  • FIG. 10 is a partially cutaway front view of the second embodiment of the present invention.
  • FIG. 11 is an enlarged view of a main part of a second embodiment of the present invention.
  • FIG. 12 is a partially cutaway front view of the third embodiment of the present invention.
  • FIG. 13 is an enlarged view of a main part of a third embodiment of the present invention.
  • M is fine particles obtained by pulverizing grains such as soybeans and rice by high-speed rotation to 50 ⁇ m or less, preferably about 10 ⁇ m or less.
  • the method for crushing and classifying cereals and the like according to the present invention wherein the crushing and crushing method M for cereals and the like is continuous downstream of a crushing zone surrounded by a cylindrical inner peripheral surface and reduced in diameter in a downstream direction.
  • the crushing and crushing method M for cereals and the like is continuous downstream of a crushing zone surrounded by a cylindrical inner peripheral surface and reduced in diameter in a downstream direction.
  • an air flow is generated that passes from the grinding zone toward the classification zone, and inside the grinding zone, a blade for agitating and grinding is provided around the central axis.
  • a spiral airflow generating step A for generating a spiral airflow toward the classification zone while rotating around the center by rotating at a high speed, and generating a centrifugal airflow radially outward on the outer peripheral portion of the pulverizing zone to carry the airflow.
  • the crushed material such as grains sent into the inside is crushed by collision with the stirring and crushing blade, and further crushed more finely by using the stirring action by the centrifugal air flow.
  • a pulverizing step B in which the powder is sent to the classification zone by a spiral airflow, and, among the pulverized materials sent from the pulverization zone, the stirring and classification blade is rotated at high speed around the central axis inside the classification zone.
  • the relatively coarse and large mass is moved to the inner peripheral surface side of the truncated cone while being stirred and pulverized by the centrifugal airflow generated by the stirring classification plate, and is moved to the pulverizing zone along the inclination of the inner peripheral surface.
  • Refluxed materials with relatively small particle size and small mass are taken out of the crushed material to be removed downstream by being put on a spiral airflow generated in the center of the classification zone in the axial direction.
  • a particle size adjusting step D for adjusting the particle size of the pulverized material taken out of the classification zone.
  • Such a crushing and classifying method M for cereals and the like can be performed using a crushing and classifying machine 1 for cereals and the like.
  • a crushing classifier 1 for cereals and the like includes a crushing chamber casing 3 in which a cylindrical crushing chamber 2 is formed, and a raw material input port upstream of the crushing chamber casing 3.
  • the upstream end of the large diameter side is communicated downstream of the side casing 5 formed with 4 and the grinding chamber casing 3, and the pulverized material outlet 7 communicated with the suction duct 6 at the downstream end of the small diameter side.
  • a grinding chamber 10 comprising a classification chamber casing 9 having a frustum-shaped classification chamber 8 formed in the axial direction, and the side casing 5 rotated so as to rotate around the central axis of the grinding chamber 10.
  • Pulverized from input port 4 A plurality of blades 12 for stirring and crushing, which are crushed and crushed in a crushing chamber 2, are fixed to at least one stirring and crushing rotor 13 provided radially, and a tip end side of the rotary shaft 11.
  • a plurality of agitating and classifying blades 14 are provided radially, each of which has a tip end surface that is close to and opposes the inner peripheral surface of the truncated cone of the classifying chamber 8 and that is inclined along the inner peripheral surface. It is composed of stirring classifiers.
  • the crushing chamber 10 is fixed to the building floor, and a sealing member of a side casing 5 of the crushing chamber 10 is mounted on a support frame 16 installed on the floor via a pair of bearings 17, 17.
  • a rotatable rotating shaft 11 that is mounted through 18 is rotatably supported, and the other end of the rotatable rotating shaft 11 is mounted on the floor via a shaft coupling 19. It is connected to the output shaft 21 of the electric motor 20 as a source.
  • the classifying chamber casing 9 of the pulverizing chamber 10 forms a pulverized material take-out port 7 and is provided with a duct connecting part 22 connected to the suction duct 6.
  • the duct connecting part 22 is connected to the duct connecting part 22.
  • the suction duct 6 is connected to a suction fan 24 via a bag filter 23.
  • jackets 25 and 26 are formed inside each of the pulverizing chamber casing 3 and the classifying chamber casing 9.
  • the stirring and pulverizing rotor 13 and the stirring and classifying rotor 15 are arranged at an end of the rotor rotating shaft 11 at a predetermined interval with a spacer 27, and both sides in the diameter direction of the rotor rotating shaft 11 are arranged. Are prevented from rotating around the rotor rotation shaft 11 by a pair of keys 28 arranged at the same time.
  • a retainer plate 29 is fixed to the end face of the rotatable shaft 11 with a fixed port 30 to prevent the agitating and shattering rotor 13 and the agitating classifier 15 from falling off the end of the rotatable shaft 1 1 shaft. are doing.
  • Stirring and grinding port 13 and stirring classifier 15 are slightly agitating and grinding roaster 13 are slightly in raw material input port 4 in grinding chamber 4 and stirring and classifying roaster 15 are mostly classified.
  • the positioning sleeve 31 whose end surface abuts on one side surface of the stirring classifier 15 is arranged and adjusted in the axial direction in the grinding chamber 10 so as to be disposed in the chamber 8.
  • These stirring and crushing blades 12 are formed in a thick propeller shape, and are made tough so that they can be rotated at a high speed to crush the raw material.
  • the agitation classifier 15 has six agitation / classification plates 14 radially centered on a shaft hole 33 for mounting on a rotatable shaft 11 formed at the center. Is provided.
  • the tip of the stirring and classifying blade 14 has an inclined front end face 3 which is closely opposed along the inner peripheral surface 34 of the classification chamber casing 9 in the shape of a truncated cone. 5, and a tip surface 36 parallel to the axial direction of the rotary shaft 11 is formed, which is the largest diameter portion of the stirrer classifier 15 successively.
  • the parallel distal end surface 36 is formed to have a short length close to and facing the inner peripheral surface of the grinding chamber casing 3.
  • a plurality of sets of the stirring and grinding rotor 13 and the classifying and grinding rotor 15 may be provided in the axial direction of the rotary shaft 11 of the mouth.
  • the milling chamber 10 is provided with a raw material inlet 4 as shown in FIG.
  • a rotating scraper 38 is provided along the inner wall 37 to be rotatably driven around the rotary shaft 11 in order to scrape off the raw material adhering to the inner wall 37 of the side casing 5. Have been.
  • the revolving scraper 38 is fixed to the inner peripheral surface of a ring gear 39 having a mating tooth on the outer periphery that is rotatably provided between the side casing 5 and the crushing chamber casing 3.
  • An annular receiving groove 40 having a U-shaped cross section is formed on the side surface of the ring gear 39 facing the inner wall 37 of the side casing 5 so as to be concentric with the center of the ring gear 39.
  • a plurality of receiving rollers 41 rotatably provided on the inner wall 37 of the side casing 5 are engaged with the annular receiving groove 40 to rotatably support the ring gear 39.
  • a pair of seal rings 42 are provided between the side surfaces of the ring gear 39 and the opposing surfaces of the side casing 5 and the pulverizing chamber casing 3 which face each other, on the inner peripheral side from the position of the receiving roller 41.
  • the ring gear 39 is sealed, and the axial movement of the ring gear 39 with respect to the crushing chamber 10 is restricted by a pair of guide metals 43 on the outer peripheral side from the receiving roller 41.
  • the ring gear 39 is in contact with the drive pinion 44 at a gap between the side casing 5 formed at the lower portion of the grinding chamber 10 and the grinding chamber casing 3.
  • the drive pinion 44 is fixed to a pinion shaft 45 rotatably supported between downwardly extending portions formed in the side casing 5 and the classifying chamber casing 9, respectively.
  • a geared motor 46 for rotating and driving the pinion shaft 45 is attached to a downwardly extending portion of the classifying chamber casing 9, and the pinion shaft 45 is rotated by the gear mechanism 46.
  • the ring gear 39 is rotated via the drive pinion 44, and accordingly, the revolving scraper 38 is revolved.
  • a second revolving scraper 47 is provided in the pulverizing chamber 10 along the inner peripheral surface of the pulverizing chamber casing 3 and is driven to rotate about the rotatable rotating shaft 11.
  • the second revolving scraper 47 is fixed to the inner peripheral surface of the ring gear 48,
  • the ring gear 48 is rotatably supported between the pulverizing chamber casing 3 and the classifying chamber casing 9 by a structure similar to that of the above-described ring gear 39, and a mating tooth formed on its outer periphery is attached to the pinion shaft 45.
  • a third revolving scraper 50 is provided along 34 so as to be driven to rotate about the central axis of the rotary shaft 11.
  • the third revolving scraper 50 is fixed to the inner periphery of a ring gear 51 disposed between the classifying chamber casing 9 and the duct connecting portion 22, and is formed on the outer periphery of the ring gear 51.
  • the mating teeth match the drive pinion 53 of the geared motor 52, which is mounted on the outside of the duct connection 22.
  • the ring gear 51 is supported by the same structure as the ring gear 39 and the ring gear 48 described above, and the rotation of the gear drive 52 is transmitted to the ring gear 51 via the drive pinion 53. Thus, the third turning scraper 50 is turned.
  • the fixed scraper 55 When the fixed scraper 55 passes through the outside of the fixed scraper 55 when the mounting portion 54 of the third revolving scraper 50 passes through the outside of the fixed scraper 55, the fixed scraper 55 removes the crushed raw material adhered and deposited on the mounting portion 54. Has the role of dropping.
  • the revolving scraper 38, the second revolving scraper 47, and the third revolving scraper 50 are continuously rotated at a rotation speed of about 1 to 10 rotations per minute, or at regular intervals by controlling a timer or the like. Is turned.
  • the corners a and the protruding portions b of the inner wall of the crushing chamber 10 are each formed with a smooth curved surface having a concave arc shape or a convex arc shape, and the entire inner wall is mirror-finished. Therefore, when a raw material having a high oil content such as soybean is crushed, the crushed material is less likely to adhere to the inner wall of the crushing chamber 10.
  • the main components of the crushing and classifying machine 1 are the crushing chamber 10, the rotating shaft 11, and the stirring Stainless steel is used as the material for the crushing rotor 13 and the stirring and classification rotor 15.
  • the crusher / classifier 1 configured as described above sucks air from the crushed material outlet 7 of the crushing chamber 10 with the suction fan 24 through the intake duct 6 and operates the motor 20 on the rotatable shaft 11. Then, the stirring and grinding machine 13 and the stirring and classifying machine 15 in the grinding chamber 10 are rotated at a high speed of 180 to 180 rotations per minute.
  • the inside of the grinding chamber 10 is rotated by the rotation of the stirring blade 13 of the stirring and grinding blade 13 and the blade of the stirring and classification blade 15 of the stirring classifier 15. A rotating airflow is generated.
  • this air flow is drawn into the axial air flow from the raw material inlet 4 to the pulverized material outlet 7 by suction of the suction fan 24, and as a result, it turns at a high speed. As a result, a tornado-shaped spiral airflow E that escapes to the intake duct 6 is generated.
  • centrifugal airflows F and G which are directed radially outward, are generated outside the spiral airflow E, respectively.
  • the supply of the raw material to the raw material input port 4 may be performed while adjusting the opening degree of the damper from the raw material hopper or the like to increase or decrease the supply amount, but in order to more accurately control the supply amount of the raw material. It is desirable to use a feeding means such as a screw feeder or a vibration feeder.
  • the raw material H introduced into the grinding chamber 10 from the raw material inlet 4 rides on the air flow generated by the suction of the suction fan 24 and is formed in the grinding chamber 2 of the grinding chamber 10 by the grinding zone J. Sucked into.
  • the raw material H entering the crushing zone J first collides with the edge of the stirring and crushing blade 12 rotating at a high speed, and is crushed into large and small particles. Then, some of the fine crushed material generated at that time is immediately carried to the classification zone K formed inside the adjacent classification room 8 by the spiral airflow E.
  • the finer particles have a smaller centrifugal force than the coarser particles, and therefore move toward the center of the crushing zone J, are captured by the spiral airflow E, and move to the classification zone K.
  • the relatively fine-granulated material sent to the classification zone K and the finely-granulated material obtained by the centrifugal airflow G are discharged into the suction duct 6 from the ground material outlet 7 via the spiral airflow E, and then on the way. It is caught by the bag filter 23 just before the suction fan 24 and is taken out through the mouth valve 56.
  • Suction fan 24 suction air volume: 20m3 / in Raw material input amount 80kg / Hr
  • Suction fan 24 suction air volume 25 m3 /. I n
  • Suction fan 24 suction air volume 30m3 / min
  • Particle size of powder frame Average particle size 30 m to 50 m
  • Suction fan 24 suction air volume 10 m3 / min
  • Suction fan 24 suction air volume 10m3 / in
  • the classifying crusher 1 outputs the electric power to the electric motor 20 which is the drive source of the rotor rotating shaft 11
  • the suction fan 24 also used a variable suction air volume.
  • the stirring and pulverizing blade 12 is formed in a propeller shape as shown in FIGS. 6 and 7, the raw material input port is cooperated with the suction of the suction fan 24. 4 A force that has the advantage of being able to suck air efficiently.
  • the stirring and crushing blade 12 is not necessarily a shape that has the function of sucking air. Even if it is used, it can be pulverized into fine particles. Other embodiments
  • FIGS. 10 to 13 different embodiments of the present invention shown in FIGS. 10 to 13 will be described.
  • the same components as those in the first embodiment of the present invention are denoted by the same reference numerals, and redundant description will be omitted.
  • the rotatable rotating shaft 11 in the powder frame chamber 10 has The same operation and effect as in the first embodiment of the present invention can be obtained even with the crushing and classifying machine 1A for cereals and the like configured as described above in that the stirring and crushing rotors 13, 13 are fixed.
  • the main difference from the first embodiment of the present invention is that one motor 2 OA and two grinding wheels are used. Since the rotatable shafts 11 and 11 of the members 10 and 10 can be driven, the crusher and classifier 1B for cereals and the like configured as described above may be used.
  • the crushing chambers 10, 10 and the supporting frames 16, 16 are arranged on the same axis with the crushed material taking-out ports 7, 7 facing each other, and the stirring crushing ports provided in the crushing chambers 10, 10 are arranged on the same axis.
  • the rotor shafts 11, 11 to which the evening class 13, 13 and the stirrer class 15, 15 are fixed are connected to one motor 2 OA output shaft 21, OA as a drive source via shaft couplings 13, 13, respectively. Connected to 21.
  • the motor 2 OA has a structure in which output shafts 21, 21 protrude on both sides, and the single motor 2 OA allows the crushing chambers 10, 10 on both sides to be stirred inside the crushing ports 13, 13.
  • the stirring and classifying rotors 15 and 15 can be driven to rotate simultaneously.
  • the crushing operation in the crushing chambers 10, 10 is the same as that of the first embodiment described above, and the crushed material outlets 7, 7 of the pair of crushing chambers 10, 10 are connected to the suction ducts 6, 6. Are linked.
  • the suction ducts 6 and 6 connected to the respective pulverized material outlets 7 and 7 are provided separately when processing different materials in the two pulverization chambers 10 and 10 at the same time.
  • the crushed material can be obtained in a wide range from several hundred microns to several microns.
  • the particle size can be adjusted to a desired one, and the particle size can be changed or adjusted without stopping the operation of the pulverizer and classifier.
  • the raw materials attached to the inner wall of the grinding chamber can be automatically removed.
  • the corners and protrusions of the inner wall of the crushing chamber are formed as smooth curved surfaces with a concave or convex arc cross section, the powdered material is less likely to adhere to these corners and protrusions. can do.
  • the inner wall of the grinding chamber is mirror-finished, it is possible to make it difficult for the ground material to adhere to the inner wall.
  • the grinding of raw materials in a pair of grinding chambers can be performed by a common drive source, and the same or different types of raw materials can be simultaneously ground in both grinding chambers.
  • a pulverizing and classifying machine with high processing efficiency can be constructed compactly and inexpensively.
  • 1, 1 A, IB crusher and classifier for cereals, etc.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

L'invention concerne un procédé de broyage et de séparation qui consiste à faire passer un flux d'air d'une zone de broyage (2), entourée d'une surface périphérique interne cylindrique, dans une zone de séparation (8), entourée d'une surface périphérique interne tronconique. Une matière brute, chargée dans la zone de broyage (2), qui heurte une lame (12) de brassage et de broyage, est broyée tout en étant brassée par un flux d'air centrifuge produit par ladite lame (12). Les particules résultantes, en fonction de leur finesse, sont successivement transportées par un flux d'air en spirale vers la zone de séparation (8). Les particules encore grossières sont alors renvoyées vers la zone de broyage (2) le long de la pente de la surface périphérique interne par un flux d'air centrifuge produit par la rotation de la lame de brassage et de séparation (14). Seules les particules qui ont été réduites au maximum à une dimension granulométrique déterminée sont transportées par le flux d'air en spirale et retirées de la zone de séparation (8). Les particules de la dimension granulométrique voulue sont ainsi obtenues en un court laps de temps.
PCT/JP2000/006078 1999-09-08 2000-09-06 Procede de broyage et de separation de cereales et machine de broyage et de separation de cereales WO2001017684A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU68732/00A AU6873200A (en) 1999-09-08 2000-09-06 Grinding and classifying method for cereals and grinding and classifying machine for cereals
EP00956988A EP1219353A1 (fr) 1999-09-08 2000-09-06 Procede de broyage et de separation de cereales et machine de broyage et de separation de cereales
CA002384343A CA2384343A1 (fr) 1999-09-08 2000-09-06 Procede de broyage et de separation de cereales et machine de broyage et de separation de cereales

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP11/253720 1999-09-08
JP25372099 1999-09-08
JP2000/250875 2000-08-22
JP2000250875A JP4467157B2 (ja) 1999-09-08 2000-08-22 穀類等の粉砕分級機

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WO2001017684A1 true WO2001017684A1 (fr) 2001-03-15

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EP (1) EP1219353A1 (fr)
JP (1) JP4467157B2 (fr)
KR (1) KR100720286B1 (fr)
CN (1) CN1180887C (fr)
AU (1) AU6873200A (fr)
CA (1) CA2384343A1 (fr)
WO (1) WO2001017684A1 (fr)

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JP4519458B2 (ja) * 2003-12-22 2010-08-04 古河機械金属株式会社 微粉末製造装置の回収管構造
JP4989059B2 (ja) * 2005-10-17 2012-08-01 ホソカワミクロン株式会社 粉砕装置
JP4785802B2 (ja) * 2007-07-31 2011-10-05 株式会社日清製粉グループ本社 粉体分級装置
JP5629880B2 (ja) * 2010-03-29 2014-11-26 ミナミ産業株式会社 気流式粉砕機
JP2012055867A (ja) * 2010-09-13 2012-03-22 Masuko Sangyo Co Ltd 気流式微粉砕装置
JP5905495B2 (ja) * 2014-01-17 2016-04-20 忠史 二宮 粉砕分級機
JP6446655B2 (ja) * 2014-08-07 2019-01-09 ミナミ産業株式会社 大豆の低温粉砕方法
KR200482142Y1 (ko) * 2015-05-15 2016-12-22 주식회사 태평소금 테라피용 미세소금가루 생성장치
JP2017018869A (ja) * 2015-07-08 2017-01-26 忠史 二宮 粉砕分級機
KR102382758B1 (ko) * 2020-02-14 2022-04-05 전주대학교 산학협력단 기류식 분쇄기의 분쇄날
CN111558439B (zh) * 2020-05-28 2024-09-13 北京工商大学 一种卧式粉碎装置
CN113230139B (zh) * 2021-04-28 2023-04-18 南京市江宁医院 一种重症护理喂药辅助装置
CN118045673B (zh) * 2024-04-16 2024-06-07 江苏鹏飞集团股份有限公司 一种水泥生料粉磨设备
CN118634918A (zh) * 2024-08-13 2024-09-13 河南润源环保材料有限公司 一种氢氧化钙研磨生产设备

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JPS375476B1 (fr) * 1960-01-11 1962-06-21
JPS57147448A (en) * 1981-03-05 1982-09-11 Kikkoman Shoyu Co Ltd Crusher
JPH053899U (ja) * 1991-06-25 1993-01-22 川崎重工業株式会社 高温ガスの案内流路
JPH11104424A (ja) * 1997-10-02 1999-04-20 Snow Brand Milk Prod Co Ltd フィルタ式集塵装置及び粉体乾燥システム

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS375476B1 (fr) * 1960-01-11 1962-06-21
JPS57147448A (en) * 1981-03-05 1982-09-11 Kikkoman Shoyu Co Ltd Crusher
JPH053899U (ja) * 1991-06-25 1993-01-22 川崎重工業株式会社 高温ガスの案内流路
JPH11104424A (ja) * 1997-10-02 1999-04-20 Snow Brand Milk Prod Co Ltd フィルタ式集塵装置及び粉体乾燥システム

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JP2002028511A (ja) 2002-01-29
CA2384343A1 (fr) 2001-03-15
KR100720286B1 (ko) 2007-05-21
AU6873200A (en) 2001-04-10
CN1180887C (zh) 2004-12-22
EP1219353A1 (fr) 2002-07-03
KR20020038748A (ko) 2002-05-23
JP4467157B2 (ja) 2010-05-26

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