EP2156902A1 - Procédé et dispositif de triage de minéraux - Google Patents

Procédé et dispositif de triage de minéraux Download PDF

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Publication number
EP2156902A1
EP2156902A1 EP07737031A EP07737031A EP2156902A1 EP 2156902 A1 EP2156902 A1 EP 2156902A1 EP 07737031 A EP07737031 A EP 07737031A EP 07737031 A EP07737031 A EP 07737031A EP 2156902 A1 EP2156902 A1 EP 2156902A1
Authority
EP
European Patent Office
Prior art keywords
minerals
sorting
screen
sizes
air force
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Withdrawn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
EP07737031A
Other languages
German (de)
English (en)
Other versions
EP2156902A4 (fr
Inventor
Takato Kaya
Ken Shimazutsu
Yuichi Nagahara
Katsuyoshi Hashimoto
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.)
Kotobuki Engineering and Manufacturing Co Ltd
Original Assignee
Kotobuki Engineering and Manufacturing Co Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39863339&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2156902(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kotobuki Engineering and Manufacturing Co Ltd filed Critical Kotobuki Engineering and Manufacturing Co Ltd
Publication of EP2156902A1 publication Critical patent/EP2156902A1/fr
Publication of EP2156902A4 publication Critical patent/EP2156902A4/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/06—Selective separation of solid materials carried by, or dispersed in, gas currents by impingement against sieves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B2201/00—Details applicable to machines for screening using sieves or gratings
    • B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens

Definitions

  • the present invention relates to a method of sorting minerals into a plurality of levels according to sizes thereof and an apparatus used for this.
  • the minerals are crushed by a centrifugal crusher and the like into crushed stones, sorted according to the sizes thereof, and supplied on demand as a base course material, aggregate concrete and the like.
  • the applicant of the present application has developed the apparatus disclosed in Japanese Patent Application Laid-Open No. 2003-175367 as the apparatus for sorting.
  • the apparatus for sorting is to sort materials to be sorted (crushed stones) blown off by a blast of an air blow device by utilizing different blow distances according to the sizes (weights) thereof. This is referred to as separation by air force.
  • Two screw conveyors for conveying the minerals are installed with different distances from an air blower under a space in which the crushed stones are blown off, and the fallen crushed stones are collected on the conveyor to be divided into two sizes according to the blow distance.
  • the present invention is to solve the problem that the blown minerals (crushed stones) are not efficiently sorted by compact means.
  • a method of sorting according to the present invention is the method of sorting minerals including air blow means for separating introduced minerals by air force and sorting means for receiving fallen minerals, sorting the minerals of a predetermined size or larger, and allowing the minerals of a predetermined size or smaller to pass therethrough, wherein including blowing off the minerals of a smaller diameter farther by the air blow means, allowing the minerals of sizes of a relatively limited certain range to fall on the sorting means, and sorting the minerals of sizes of the certain range by each sorting means.
  • An apparatus for sorting the minerals according to the present invention is the apparatus for sorting minerals for sorting sizes of the minerals by separating the minerals to be sorted by air force, including a dust collection device for collecting dust from a space to separate the minerals by air force, wherein a sorting screen is arranged below the space to separate the minerals by air force.
  • the apparatus for sorting the minerals according to the present invention is the apparatus for sorting minerals for sorting sizes of the minerals by separating the minerals to be sorted by air force, including a dust collection device for collecting dust from a space to separate the minerals by air force, wherein a sorting screen is arranged below the space to separate the minerals by air force, and an end of the sorting screen is located at a position to which the minerals to be sorted are blown off.
  • the apparatus for sorting the minerals according to the present invention is the apparatus wherein a collection opening without the sorting screen is formed on a portion deeper from the end of the sorting screen. Further, the apparatus for sorting the minerals according to the present invention is the apparatus wherein an intermediate damper for dividing the minerals is provided on the sorting screen on a position to which the minerals to be sorted are blown off.
  • the method of sorting the minerals and the apparatus for sorting used for this according to the present invention may obtain a following effect by the above-described configuration.
  • the present invention is to separate minerals by air force and allow the minerals to fall on a surface of a certain range of sorting means, thereby allowing the minerals to smoothly pass through a sorting screen to realize compact selecting means.
  • Fig. 1 shows a first embodiment of the present invention, and a housing frame 1 of an entire apparatus is a screener A in which side walls of a vertically intermediate portion are connected by upper and lower accordions 1a such that oscillation of a vibrator and the like is transmitted thereto.
  • the screener A which is the sorting means, has a plurality of sorting screens 11 to be described inside thereof, and the sorting screens 11 oscillate by the oscillation of the vibrator transmitted thereto.
  • a blow opening 2 is opened on a side of an upper portion of the housing frame 1.
  • a blast of a blow fan 3, which is air blow means, is sent from the blow opening 2 to a mineral sorting space 4 of the housing frame 1.
  • a mineral slot 5 is opened in the vicinity of the blow opening 2, immediately above.
  • a dust collection device 9 is installed on the upper portion of the housing frame 1, on an opposite side of the blow opening 2.
  • the dust collection device 9 has a dust collection opening 10 toward the mineral sorting space 4, and this may collect minute minerals by suction force of the dust collection device 9.
  • the sorting screens 11 are such that the size of the sieve mesh (mesh sizes) thereof becomes smaller according to a classification of sorting from the uppermost screen toward the lowermost screen.
  • a partition wall 14 is provided on a side end of the blow opening 2 of each of the sorting screens 11, and a separate exhaust 15 is formed for each of the sorting screens 11.
  • Minerals 12 are introduced into the apparatus from the above-described mineral slot 5.
  • the fallen minerals 12 are blown off by the blast from the blow fan 3.
  • the minerals 12, which are larger and heavier, are not blown far.
  • the minerals 12, which are smaller and lighter, are blown farther by the blast. That is to say, the minerals 12 are separated according to the sizes of a certain range by air force, and this is referred to as separation by air force in the present invention.
  • the sorting screens 11 are net-like members and vertically stacked in a descending order of the size of the sieve mesh for screening, and the minerals 12 of the size smaller than the size of the sieve mesh pass through the screen 11 to be fallen further below.
  • four screens 11a to 11d are arranged in an order of the size of the sieve mesh thereof such that the screen 11d having the size of 20 mm first, then the screens 11c and 11b having the sizes of 13 mm and 5 mm, respectively, and further the lowermost screen 11a having the size of 3 mm.
  • Smallest and lightest minerals 12a are blown farthest to pass through the sieve meshes of all the sorting screens 11d to 11a and are fallen below to be exhausted from an exhaust 15a.
  • Minerals 12b which are larger than the minerals 12a in size (classification), pass through the screens 11d, 11c and 11b to be fallen on the screen 11a and roll on the screen 11a to be exhausted from an exhaust 15b.
  • minerals 12c and 12d which are further larger in size (classification) are fallen on the screens 11c and 11d, respectively, to be exhausted from exhausts 15c and 15d of those classifications.
  • Minerals 12e of the largest size do not pass through the screens 11a to d at all, and roll on the screen d to be exhausted from an exhaust 15e.
  • the present invention prevents the minerals from being fallen so as to be entangled with larger minerals, by setting positions on which the minerals 12 of a certain range fall within a certain range on the surface of the sorting screen 11, by combining the separation of the minerals according to the sizes thereof by air force and the sorting screens 11, thereby significantly improving sorting ability by the sorting screens 11. That is to say, the sorting by air force and the sorting screens are not simply combined, but the both are combined for smoothly sorting by the sorting screens to achieve a special effect to make the length and the width of the sorting screens 11 compact.
  • the minerals in a state of extremely fine dust are collected from the mineral sorting space 4 through the dust collection opening 10 by operation of the dust collection device 9.
  • the minerals 12 are sorted into six sizes.
  • the illustrated embodiment is provided with a plurality of sorting screens 11, when using the dust collection device 9 and a collection opening 17 together, the minerals 12 may be sorted into four sizes even when there is a unique sorting screen 11. That is to say, a plurality of sorting screens 11 are not necessarily required.
  • Fig. 2 shows a second embodiment of the present invention, and the collection opening 17 without the sorting screen for collecting the minerals, which fall below the same, is provided on the deepest portion of the housing frame 1 away from the blow opening 2.
  • a rear damper 19 capable of changing an inclination angle is attached to the uppermost end of a partition wall 18, which forms the collection opening 17.
  • a damper 21 capable of inclining to the collection opening 17 side is provided in the middle of the partition wall 18.
  • the damper 21 is inclined to the collection opening 17 side to exhaust the minerals 12 to the exhaust 15a side.
  • Fig. 3 shows a third embodiment of the present invention, and the end of each of the sorting screens 11 on the side apart from the blow opening 2 is located at the longest reach position of the minerals 12, which should fall thereon to be sorted.
  • the blow distance of the minerals 12 differs according to the size of the minerals 12 together with a performance of the blow fan 3, and this is obtained in advance as experimental data.
  • each of the sorting screens 11a to d may determine blow distances of minerals 12a to d of sizes collected by screening using the sorting screens 11a to d.
  • Each of the sorting screens 11a to d in the third embodiment preferably extends a tip end thereof on the side away from the blow opening 2 correctly to the distance (longest reach position) obtained by the experiment, but does not extend to a position to which the minerals 12 of smaller size are blown off. Accordingly, the blown minerals 12 do not pass through the screen 11 with which the minerals of a larger size are sorted and most of them substantially correctly fall on the screen 11 with which the minerals are to be sorted.
  • Fig. 4 shows a fourth embodiment of the present invention, and the tip end of the sorting screen 11 is located at a position to which the minerals 12 of the size to be screened are blown off as in the third embodiment, and an intermediate damper 20 is attached to the tip end of each of the screens 11 such that the angle of inclination may be changed.
  • a boundary position of the sorting may be adjusted according to the position to which the minerals are blown off by changing the angle of the intermediate damper 20, thereby enabling more correct sorting.
  • the collection opening 17 without the sorting screen is provided on a portion deeper than the sorting screen 11.
  • Such an intermediate damper 20 is available in the first and second embodiments, and the intermediate damper 20 is provided not on the tip end of each of the sorting screens 11 but in the middle of the sorting screen 11 at a position to which the minerals 12 to be sorted are blown off.

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  • Combined Means For Separation Of Solids (AREA)
EP07737031A 2007-04-06 2007-04-06 Procédé et dispositif de triage de minéraux Withdrawn EP2156902A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/000374 WO2008126154A1 (fr) 2007-04-06 2007-04-06 Procédé et dispositif de triage de minéraux

Publications (2)

Publication Number Publication Date
EP2156902A1 true EP2156902A1 (fr) 2010-02-24
EP2156902A4 EP2156902A4 (fr) 2010-11-03

Family

ID=39863339

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07737031A Withdrawn EP2156902A4 (fr) 2007-04-06 2007-04-06 Procédé et dispositif de triage de minéraux

Country Status (5)

Country Link
EP (1) EP2156902A4 (fr)
JP (1) JP4852145B2 (fr)
CN (1) CN101657268B (fr)
AU (1) AU2007351238B2 (fr)
WO (1) WO2008126154A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104016150A (zh) * 2013-12-15 2014-09-03 广西鱼峰水泥股份有限公司 斜槽进给装置
CN107309035A (zh) * 2017-07-04 2017-11-03 芜湖市亿仑电子有限公司 一种电容器用薄膜撕碎分选回收装置

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013020888A1 (de) * 2013-12-11 2015-06-11 Khd Humboldt Wedag Gmbh Kreislaufmahlanlage mit Vorsichter und Kugelmühle
JP6263320B2 (ja) * 2014-01-24 2018-01-17 株式会社幸袋テクノ 風力選別装置
CN105436084B (zh) * 2014-08-15 2017-12-15 中联重科股份有限公司 矿物分选装置及矿物加工***
CN105363676A (zh) * 2014-08-15 2016-03-02 中联重科股份有限公司 矿物分选装置和矿物生产线
CN107262372A (zh) * 2016-04-06 2017-10-20 中国铁建重工集团有限公司 一种风选筛分装置及方法
KR101802931B1 (ko) * 2016-09-29 2017-11-30 손용식 풍력을 이용한 선별장치
CN106861869A (zh) * 2017-01-05 2017-06-20 江苏赛日实业有限公司 一种多级干法制砂生产线及其制砂工艺
CN107626577A (zh) * 2017-11-10 2018-01-26 无锡宇能选煤机械厂 层叠式振动筛选煤机
KR101872328B1 (ko) * 2018-02-14 2018-06-28 홍신 주식회사 특수 합금 재활용 시스템
CN111217079A (zh) * 2019-12-02 2020-06-02 姚笑笑 一种便于卸载粉末状颗粒的矿物运载机
CN113171982A (zh) * 2021-04-15 2021-07-27 合肥水泥研究设计院有限公司 一种多产品机械风力组合式选粉机
CN114887888A (zh) * 2022-04-27 2022-08-12 刘杰 一种新材料生产用原料精细筛选***及筛选方法
KR102546758B1 (ko) * 2022-10-28 2023-06-22 주식회사 대호시리카 유동사 제조시스템 및 이에 제조된 유동사

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US4319990A (en) 1979-01-19 1982-03-16 Gebrueder Buehler Ag Apparatus for the dry cleaning of grain
JP2003010725A (ja) 2001-06-29 2003-01-14 Kotobuki Giken Kogyo Kk 製砂装置及び製砂方法
RU2211146C2 (ru) 2001-11-08 2003-08-27 Общество с ограниченной ответственностью научно-производственная фирма "ЭНТАР" Способ отделения волокнистых включений из продуктов измельчения изношенных шин и устройство для его осуществления

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See also references of WO2008126154A1

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104016150A (zh) * 2013-12-15 2014-09-03 广西鱼峰水泥股份有限公司 斜槽进给装置
CN107309035A (zh) * 2017-07-04 2017-11-03 芜湖市亿仑电子有限公司 一种电容器用薄膜撕碎分选回收装置

Also Published As

Publication number Publication date
WO2008126154A1 (fr) 2008-10-23
JP4852145B2 (ja) 2012-01-11
CN101657268A (zh) 2010-02-24
JPWO2008126154A1 (ja) 2010-07-15
CN101657268B (zh) 2013-06-05
AU2007351238B2 (en) 2012-01-19
EP2156902A4 (fr) 2010-11-03
AU2007351238A1 (en) 2008-10-23

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