EP1219353A1 - Grinding and classifying method for cereals and grinding and classifying machine for cereals - Google Patents

Grinding and classifying method for cereals and grinding and classifying machine for cereals Download PDF

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Publication number
EP1219353A1
EP1219353A1 EP00956988A EP00956988A EP1219353A1 EP 1219353 A1 EP1219353 A1 EP 1219353A1 EP 00956988 A EP00956988 A EP 00956988A EP 00956988 A EP00956988 A EP 00956988A EP 1219353 A1 EP1219353 A1 EP 1219353A1
Authority
EP
European Patent Office
Prior art keywords
pulverization
zone
pulverizing
churning
air current
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.)
Withdrawn
Application number
EP00956988A
Other languages
German (de)
English (en)
French (fr)
Inventor
Tadashi Ninomiya
Shujiro Shiraiwa
Hiroaki Kanazawa
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Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1219353A1 publication Critical patent/EP1219353A1/en
Withdrawn legal-status Critical Current

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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 is related to a device and method for pulverizing and classifying which do pulverization processing for a desired particle size of a stamping including cereals such as a soybean and rice, shells, and ores.
  • the first and second revolution bodies which are supported by the rotating axle face each other and are provided in casing which prepared the injection mouth of materials in the one side, and constitutes the pulverization room is installed between a pair of these revolution bodies, and the composition room of casing.
  • the materials passage intervals for materials such as through hole which connects this pulverization room and the injection mouth is provided in the first revolution body, the through hole is provided in the second revolution body along with the rotating axle. In addition, they are connected to the opening for discharging having the through hole and absorber.
  • a method for pulverizing and classifying of cereals includes spiral air current generating process producing the air flow which pass through, directed to a classification zone from a pulverization zone, inside of the classification zone surrounded by an inner circumferential surface in the shape of a truncated cone, the inner circumferential surface having a smaller diameter end to the downstream direction and provided at the downstream part of the pulverization zone surrounded by an inner circumferential surface formed in the shape of a cylinder, and in the pulverization zone, a blade for churning-pulverizing provided at an axle into the pulverization zone has spiral air current directed to the classification zone while the current is circling in near a center portion of the pulverization zone; pulverization process, the stamping sent into the pulverization zone from the upstream part thereof strikes the blade for churning and pulverizing by blowing the air current and pulverized, and In the circumferential part of the pulverization zone, the centrifugal air current directed to
  • a device for pulverizing and classifying comprises a pulverization chamber further including a pulverization case having a pulverization room formed in the shape of a cylinder, and a classification case having a side case with an injection mouth provided at a portion adjacent an upstream of the pulverization case and a classification room, formed in the shape of a truncated cone, having an extraction mouth in the direction of an axis, the mouth extending from a large diameter end connected to the downstream portion of the pulverization case to a small diameter end connected to a suction duct; an axle attached rotatably in the side case so that it rotates to the circumference of axle of the pulverization chamber, the axle driving by a power source provided at the outside of the of the pulverization chamber; at least one churning-pulverizing rotor having a plurality of blades for churning and pulverizing, formed in the direction of radiation, the blade churning and pulverizing
  • Figs. 1 to 9 illustrate a method for pulverizing and classifying cereals and the like, wherein it proceeds to pulverize cereals such as a soybean and rice by high-speed rotation, the stamping is pulverized in the shape of a particle 50 microns or less, is preferably pulverized at around 10 microns, of a first embodiment of the present invention.
  • the mark M is the method for pulverizing and classifying cereals such as a soybean and rice, etc. and includes a spiral air current generating process A, pulverization process B and process C for extracting the small pulverization thing and adjustment process D of the particle size.
  • the spiral air current generating process A produces the air flow which passes through, directed to a pulverization zone from a classification zone, inside of the classification zone surrounded by an inner circumferential surface in the shape of a truncated cone, the inner circumferential surface having smaller diameter to the downstream direction and provided at the downstream part of the pulverization zone surrounded by an inner circumferential surface in the shape of a cylinder.
  • a blade for churning-pulverizing provided at the axle into the pulverization zone has spiral air current directed to the classification zone while the current is circling in near a center portion of the pulverization zone.
  • the stamping sent into the pulverization zone from the upstream part thereof strikes the blade for churning and pulverizing by blowing the air current and pulverized.
  • the centrifugal air current directed to the radius direction and outside thereof is produced, it grinds more minutely using the churning action by the centrifugal air current, it puts on the spiral air current from the detailed stamping in order, and it is sent into the classification zone.
  • the stamping carried from the pulverization zone by high-rotation of the blade around the central axis is divided into the stamping having large and small mass.
  • the stamping having large mass moves to the inner circumferential surface in the shape of a truncated cone while it is pulverized by the centrifugal air current produced by the blade and is returned back to the pulverization zone.
  • the stamping having small mass gets in the spiral air current produced around the central part of the classification zone to the direction and can be taken it out to the downstream thereof.
  • particle size adjustment process D the particle size of the pulverized stamping taken out from the classification zone can be adjusted by fluctuating selectively the number of rotation of the blade or the air current flow which makes it pass towards the classification zone from the pulverization zone.
  • the pulverizing-classifying method M can be done using the pulverizing-classifying device 1 which can pulverize the cereals.
  • the pulverizing-classifying device 1 which can pulverize the cereals and the like is composed of a pulverization chamber 10, axle 11, at least one churning-pulverizing rotor 13 having a plurality of blades 12 for churning and pulverizing, formed in the direction of radiation, and churning-classifying rotor 15 having a plurality of blades 14 for churning and classifying in the direction of radiation, as shown in Figs. 2 to 9.
  • the pulverization chamber 10 is composed of a pulverization case 3 having a pulverization room 2 formed in the shape of a cylinder and a classification case 9.
  • the classification case 9 further has a side case 5 having an injection mouth 4 provided at portion adjacent an upstream of the pulverization case 3 and a classification room 8, formed in the shape of a truncated cone, having an extraction mouth 7 in the direction of an axis, the mouth 7 having a large diameter end connected to the downstream portion of the pulverization case 3 and having a small diameter end connected to a suction duct 6.
  • the axle 11 is attached rotatably in the side case 5 so that it rotates to the circumference of axle of the pulverization chamber 10. Furthermore, the axle 11 drives by power source provided at the outside of the pulverization chamber 10.
  • the blades 12 can churn and pulverize the stamping supplied from the materials injection mouth 4 of the side case 5 in the pulverization room 2.
  • the blades 14 of the churning-classifying rotor 15 approaches and counters the inner circumferential surface, formed in the shape of the truncated cone and has the tip portion which inclined so that it is provided along the inner circumferential surface respectively.
  • the pulverization chamber 10 is fixed to a floor surface of the building.
  • a support frame 16 provided in the floor surface supports the axle 11 attached by penetrating a seal member 18 of the side case 5 of the pulverization chamber 10 through a pair of bearings 17,17 rotatably.
  • the other end of the axle 11 is connected with an output axle 21 of a motor 20 as a power source provided in the floor surface through a joint 19.
  • the extraction mouth 7 for the stamping is provided in the classification case 9 of the pulverization chamber 10, and a duct connection part 22 connected to the suction duct 6 is attached in it, the suction duct 6 connected to the suction fan 24 through the bug filter 23.
  • the water jackets 25,26 are formed of the pulverization case 3 and the classification case 9 respectively.
  • the churning-pulverizing rotor 13 and churning-classifying rotor 15 are provided so as to hold a predetermined interval by a spacer 27 at the end of the axle 11 and provided both sides of the axle 11 by a pair of keys 28.
  • a board 29 is being to an end surface of the axle 11 with a fixed bolt 30. Accordingly, the omission from axle 11 of the churning-pulverizing rotor 13 and churning-classifying rotor 15 are prevented.
  • Positioning adjustment of the churning-pulverizing rotor 13 is carried out in the axis direction within the pulverization chamber 10 by a positioning sleeve 31 which touches on the one side of one side of the churning-classifying rotor 15 so that it is arranged in the pulverization room 4 adjacent the injection mouth 4. Moreover, positioning adjustment of the churning-classifying rotor 15 is carried out in the axis direction within the pulverization chamber 10 by the positioning sleeve 31 that touches on the one side of the churning-classifying rotor 15 so that the most part thereof is arranged in the classification room 8.
  • the churning-pulverizing rotor 13 has an insertion hole 32 for attaching to the axle 11, formed in the central part thereof. And six blades 12 for churning and pulverizing are provided respectively in the radial direction focusing on the insertion hole 32.
  • These blades 12 are formed in the shape of a propeller in thickness, and they are toughly made so that it can be ground the materials by rotating at high-speed.
  • the churning-pulverizing rotor 15 has an insertion hole 33 for attaching to the axle 11, formed in the central part thereof. And six blades 14 for churning and pulverizing are provided respectively in the radial direction focusing on the insertion hole 33.
  • a top portion of the blade 14 has an inclined tip surface 35 and a parallel tip surface 36.
  • the inclined tip surface 35 approaches so as to along an inner circumferential surface 34 of the classification room 9 and opposes it.
  • the parallel tip surface 36 in connected to the surface 35 and provided in the axle direction of the axle 11, having maximum diameter in the rotor.
  • the parallel tip surface 36 is formed in the short length that approaches with inner circumferential surface of the pulverization case 3 and opposes it.
  • two or more sets of churning-pulverizing rotor 13 and churning-classifying rotor 15 may be put in order in the direction of the axis of the axle 11 respectively.
  • the revolution scraper 38 is fixed to the inner circumferential surface of a ring gear 39 having gears on the perimeter, which provided rotatably between the side case 5 and the pulverization case 3.
  • annular slot 40 formed in the shape of a cross-sectional ⁇ shape is formed with a side face which opposes to the inner wall 37 of the side case 5, concentric with the ring gear 39.
  • a plurality of receptacle rollers 41 is provided rotatably in the inner wall 37 of the side case 5 engages the ring gear 39 and support rotatably.
  • a pair of seal rings 42 adjacent to the position toward the inner circumferential side from the position provided the rollers 41.
  • a pair of guide metals 43 regulates movement in the axle direction of the ring gear 39 to the pulverization chamber 10.
  • the ring gear 39 is gears with a drive pinion 44 in the space between the side case 5 and the pulverization case 3 which are formed in the lower part of the pulverization chamber 10.
  • the drive pinion 44 is fixed to an pinion axle 45 supported rotatably between an overhang parts, projected downwards, formed at the side case 5 and the classification case 9 respectively.
  • a geared motor 46 which drives the pinion axle 45, is attached in the overhang part of the classification case 9.
  • the geared motor 46 rotates with the pinion axle 45, the ring gear 39 is rotated through the drive pinion 44, and the revolution scraper 38 revolves.
  • the second revolution scraper 47 which drives along with the inner circumferential surface of the pulverization case 3 of the axle 11, is formed.
  • the second revolution scraper 47 is fixed to the inner circumferential surface of a ring gear 48. Moreover, the ring gear 48 is supported rotatably between the pulverization case 3 and the classification case 9 with the same structure as the ring gear 39.
  • the gear tooth formed in the outer circumferential of the ring gear 48 gears to a drive pinion 49 fixed to the pinion axis 45, together with the drive pinion 44.
  • a third revolution scraper 50 is formed along with the inner circumferential surface 34 in the shape of a truncated cone adjacent the extraction mouth 7 of the classification case 9 so as to drive with the axle 11.
  • the revolution scraper 50 is fixed to the inner circumference portion of a ring gear 51 arranged between the classification case 9 and the duct connection part 22.
  • the gear tooth currently formed at the outer circumferential portion of the ring gear 51 has geared with a drive pinion 53 of a geared motor 52 attached to the outer portion of the duct connection part 22.
  • the ring gear 51 is supported as the same structure as the ring gear 39 and the ring gear 48.
  • the third revolution scraper 50 drives by transmitting rotation of the geared motor 52 to a ring gear 51 through the drive pinion 53.
  • a fixed scraper 55 is provided so as to have an interval to pass an attached portion 54 of the scraper 50 and oppose with the inner circumferential surface of the ring gear 51.
  • the fixed scraper 55 When the attached portion 54 passes through the outside of the fixed scraper 55, the fixed scraper 55 has the role which scratches the stamping of the materials which adhere and deposits among the attached portion 54.
  • the scrapers 38, 47 and 50 drive at 1 to 10 rotations per minute continuously or drive for every fixed time by control of a timer and the like.
  • a corner a and projection b of the inner wall of the pulverization chamber 10 are formed on the smooth circular curved surface having concave or convex circular shape respectively, and mirror finish of the whole inner wall is done.
  • the materials having the large amount of oil contained in soybean is grinded, it is hard to adhere the stamping to the inner wall of the pulverization chamber 10.
  • stainless steel is used for material, which is the main composition parts of the pulverizing-classifying device 1 such as the pulverization chamber 10, axle 11, churning-pulverizing rotor 13 and churning-classifying rotor 15.
  • the pulverizing-classifying device 1 operates the motor 20 and make the axle 11 drive while they attract air from the extraction mouth 7 of the pulverization chamber 10 by the suction fan 24 through the suction duct 6, churning-pulverizing rotor 13 and churning-classifying rotor 15 in pulverization chamber 10 allow to rotate at high speed of per minute 1800 to 18000 rotations.
  • the air current which flows the surroundings of the axle 11 by rotation of the blade 12 and is generated at high-speed rotation.
  • this air current is drawn in the air flow to go to the extraction mouth 7 from the injection mouth 4 by the suction fan 24, as a result, at high speed, spiral air current E in the shape of a tornado which it flows to the suction duct 6 at high speed is generated.
  • supply of the materials to the injection mouth 4 adjusts the degree of opening of a damper from a materials hopper etc., and it may perform it adjusting the amount of supply.
  • supply means such as screw feeder and oscillating feeder.
  • Materials H supplied into the pulverization chamber 10 from the injection mouth 4 rides in the air current produced by the suction fan 24, and is inhaled to the pulverization zone J formed into the pulverization room 2 of the pulverization chamber 10.
  • the particle of the most materials carried to the pulverization zone J is coarse and its mass is still large, the particle moves to the radius direction within pulverization zone J, and rides on centrifugal air current F and is churn. In addition, It is ground still finely by a collision of particles, or the collision with a particle and inner circumferential surface of the pulverization room 2.
  • the motor 20 which is the source of a drive of the axle 11, having 30 h.p. of outputs and characterizing in the number-of-rotations variable is used in the classification grinder 1 in [1], [2], [3], [4] and [5], the quantity of the suction for the suction fan 24 also is used the variable thing.
  • the blade for the churning pulverization 12 is formed in the shape of a propeller as shown in Figs. 6 and 7, although there is an advantage which can collaborate with the suction fan 24 suction and can inhale air efficiently from the injection mouth 4, the blade 12 can be ground in the shape of a particle, even if it uses what is not necessarily the form which has the function which inhales air.
  • FIG. 10 and 11 A second embodiment of the present invention is shown in Figs. 10 and 11. It is distinguished from the first embodiment by the fact that two churning pulverization rotors 13,13 are fixed to the axle 11 in to the pulverization chamber 10 respectively.
  • a pulverizing-classifying device 1A according to the second embodiment has similar advantages to that according to the first embodiment.
  • FIG. 12 A third embodiment of the present invention is shown in Figs. 12 and 13. It is distinguished from the first embodiment by the fact that two axle 11,11 of two pulverization chambers 10,10 can be driven by a motor 20A.
  • a pulverizing-classifying device 1B according to the third embodiment has similar advantages to that according to the first embodiment.
  • the pulverization chambers 10,10 and the support frames 16,16 are arranged on the same axis in a condition that the pulverization thing extraction mouths 7,7 turn on the contrary respectively.
  • the churning pulverization rotors 13,13 and the axles 11,11 are connected with the output axle 21,21 of the motor 20A as a power source through the joints 19,19 respectively.
  • the output axes 21,21 are projected on both sides thereof, and the motor 20A can drive the churning-pulverizing rotors 13,13 and churning-classifying rotors 15, 15 of the chamber 10 simultaneously by the motor 20A.
  • Pulverizing operation in the pulverization chambers 10 has similar operation to that according to the first embodiment.
  • the extraction mouths 7,7 of the pair of pulverization chambers 10,10 are connected with the suction ducts 6,6 respectively.
  • the ducts 6 are just to connect with the bug filter 23 or suction fun 24.
  • each of the ducts 6,6 is attached together, and they are connected with the filter 23 and the suction fan 24.
  • a pulverization thing can be adjusted to a desired particle size in the large range of few micron from hundreds of microns only by doing increase-and-decrease adjustment of one of the flow rate of an air current which classification zone is passed from the pulverization zone, and the number of rotations of the blade for churning and classifying. And change and adjustment of a particle size can be performed without stopping operation of a pulverizing- classifying device.
  • a corner a and projection b of the inner wall of the pulverization chamber 10 include the smooth circular curved surface having concave or convex circular shape respectively. Mirror finish of the whole inner wall is done. When the materials having the large amount of oil contained in soybean is grinded, It is hard to adhere the stamping to the inner wall of the pulverization chamber 10.
  • pulverization processing of the materials in a pair of the pulverization chambers can be performed in the common power source. Also the materials of the same kind or different species can be simultaneously processed by both of the pulverization chambers, and the pulverizing-classifying device at high-performance efficiency can be constituted compactly and cheaply.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Crushing And Pulverization Processes (AREA)
EP00956988A 1999-09-08 2000-09-06 Grinding and classifying method for cereals and grinding and classifying machine for cereals Withdrawn EP1219353A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP25372099 1999-09-08
JP25372099 1999-09-08
JP2000250875A JP4467157B2 (ja) 1999-09-08 2000-08-22 穀類等の粉砕分級機
JP2000250875 2000-08-22
PCT/JP2000/006078 WO2001017684A1 (fr) 1999-09-08 2000-09-06 Procede de broyage et de separation de cereales et machine de broyage et de separation de cereales

Publications (1)

Publication Number Publication Date
EP1219353A1 true EP1219353A1 (en) 2002-07-03

Family

ID=26541360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00956988A Withdrawn EP1219353A1 (en) 1999-09-08 2000-09-06 Grinding and classifying method for cereals and grinding and classifying machine for cereals

Country Status (7)

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

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Publication number Priority date Publication date Assignee Title
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
KR102382758B1 (ko) * 2020-02-14 2022-04-05 전주대학교 산학협력단 기류식 분쇄기의 분쇄날
CN111558439A (zh) * 2020-05-28 2020-08-21 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

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JPS57147448A (en) * 1981-03-05 1982-09-11 Kikkoman Shoyu Co Ltd Crusher
JP2563185Y2 (ja) * 1991-06-25 1998-02-18 川崎重工業株式会社 高温ガスの案内流路
JP3333723B2 (ja) * 1997-10-02 2002-10-15 雪印乳業株式会社 フィルタ式集塵装置

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Publication number Publication date
WO2001017684A1 (fr) 2001-03-15
KR20020038748A (ko) 2002-05-23
KR100720286B1 (ko) 2007-05-21
CA2384343A1 (en) 2001-03-15
JP2002028511A (ja) 2002-01-29
CN1180887C (zh) 2004-12-22
AU6873200A (en) 2001-04-10
JP4467157B2 (ja) 2010-05-26
CN1387463A (zh) 2002-12-25

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