WO2011013521A1 - Séparateur pour matières abrasives et matières de nettoyage, et procédé pour séparer des matières abrasives et des matières de nettoyage - Google Patents

Séparateur pour matières abrasives et matières de nettoyage, et procédé pour séparer des matières abrasives et des matières de nettoyage Download PDF

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Publication number
WO2011013521A1
WO2011013521A1 PCT/JP2010/061963 JP2010061963W WO2011013521A1 WO 2011013521 A1 WO2011013521 A1 WO 2011013521A1 JP 2010061963 W JP2010061963 W JP 2010061963W WO 2011013521 A1 WO2011013521 A1 WO 2011013521A1
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WO
WIPO (PCT)
Prior art keywords
sieve
abrasive
foreign matter
separator
air flow
Prior art date
Application number
PCT/JP2010/061963
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English (en)
Japanese (ja)
Inventor
裕之 橋本
秀樹 佐藤
和士 桑田
政洋 寺岡
Original Assignee
Ｊｆｅメカニカル株式会社
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 Ｊｆｅメカニカル株式会社 filed Critical Ｊｆｅメカニカル株式会社
Priority to JP2011524735A priority Critical patent/JP5432265B2/ja
Publication of WO2011013521A1 publication Critical patent/WO2011013521A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
    • B24C9/006—Treatment of used abrasive material
    • 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
    • B07B4/08—Separating solids from solids by subjecting their mixture to gas currents while the mixtures are supported by sieves, screens, or like mechanical elements
    • 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
    • B07B7/04—Selective separation of solid materials carried by, or dispersed in, gas currents by impingement against baffle separators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • the present invention relates to a separator and a separation method for an abrasive that is incorporated in a recovery device that separates and recovers the blasted abrasive from the foreign material and separates the abrasive from a mixture of the abrasive and the foreign material.
  • Blasting is a processing method in which a polishing material is sprayed onto the surface of a workpiece such as a hull block or bridge block to remove rust on the surface of the workpiece or to pre-process the coating.
  • a polishing material for example, a metal ball called a grid having a diameter of less than 1 mm to several mm is used.
  • a general recovery device includes a vacuum pump and a hose connected to the vacuum pump, and the abrasive is sucked by the hose like a vacuum cleaner.
  • the abrasive includes rust on the surface of the workpiece, abrasive scraps such as welding rods and weld slag, and foreign substances such as powdered abrasive. In reusing the abrasive, it is necessary to separate these foreign substances from the abrasive. This is because, if the abrasive with foreign matter is reused, the nozzle of the blasting apparatus is clogged, or the foreign matter does not work for blasting, and the efficiency of blasting is reduced.
  • Patent Document 1 discloses that the mixture of the abrasive and the foreign matter is collected by a dust collector such as a cyclone, and then the mixture is obtained by a bucket elevator. Lift and introduce into a horizontally oriented cylindrical sieve, stir the mixture with a screw in the cylindrical sieve to separate and remove large-diameter foreign matter, and remove the abrasive and small-diameter particles removed from the sieve.
  • a dust collector such as a cyclone
  • a bucket elevator Lift and introduce into a horizontally oriented cylindrical sieve, stir the mixture with a screw in the cylindrical sieve to separate and remove large-diameter foreign matter, and remove the abrasive and small-diameter particles removed from the sieve.
  • the foreign matter includes a large foreign matter having a diameter larger than that of the scouring material and a fine powdery foreign matter having a diameter smaller than that of the scouring material.
  • the polishing material separation / collection device described in Patent Document 1 the polishing material can be separated from both large-diameter foreign matter and fine powdery foreign matter.
  • Patent Document 2 two upper and lower sieves having different sieve sizes are arranged in a separator, and a mixture of an abrasive and a foreign substance is passed through the upper and lower two sieves, and an upper stage having a large sieve is provided.
  • a separator that separates and removes large-diameter foreign matter with a sieve, separates and collects the abrasive with a lower sieve having a relatively small opening mesh, and drops fine powdery foreign substances from the lower sieve is disclosed. .
  • Patent Document 1 since the recovery device described in Patent Document 1 employs a two-stage sorting method that uses both sorting by a sieve and wind sorting, there is a problem that the device becomes complicated and the cost of the device increases. . In particular, small and medium-sized shipyards have problems in terms of funds and land, and there is a demand for inexpensive and small equipment.
  • an object of the present invention is to provide a polishing material separator and a polishing material separation method capable of simplifying the structure and collecting foreign substances automatically in one place without cleaning the sieve.
  • the invention according to claim 1 is a separator of an abrasive for separating the abrasive from the mixture of the abrasive and the foreign material, and the mixture of the abrasive and the foreign material is A separator main body having a supply port supplied together with an air flow, and a discharge port through which air is discharged; and a sieve having a large number of openings provided to be inclined inside the separator main body to allow the abrasive to fall; A foreign substance reservoir for collecting foreign substances, and creating a flow of air on the sieve from the upper side to the lower side of the inclination of the sieve, thereby collecting the foreign substances that have not fallen from the sieve in the foreign substance reservoir. It is a separator of material.
  • the sieve is provided with a vibration device that vibrates or swings the sieve.
  • the invention according to claim 3 is a separator of the abrasive for separating the abrasive from the mixture of the abrasive and the foreign material, wherein the supply of the abrasive and foreign material mixture is supplied together with the flow of air.
  • a separator body having a mouth and a discharge port through which air is discharged; a sieve provided inside the separator body and having a large number of openings through which an abrasive is passed; and a vibration device for vibrating or swinging the sieve
  • a foreign matter reservoir for accumulating foreign matter, and not falling from the sieve by creating an air flow from one side of the sieve to the other side on the sieve while vibrating or swinging the sieve. It is the separator of the polishing material which collects a foreign material in the said foreign material reservoir.
  • the discharge port of the separator main body is in the form of fine powder discharged along with the flow of air from the discharge port.
  • a dust collector for separating and collecting foreign matter is connected.
  • the polishing material separator in the polishing material separator according to any one of the first to fourth aspects, after the air flow formed on the sieve passes through the sieve, The direction is changed and the gas is discharged from the discharge port provided in the separator body.
  • the invention according to claim 6 is the polishing material separator according to any one of claims 1 to 5, wherein the air flow created on the sieve is a plurality of baffle plates provided in the separator body. It is made to meander by.
  • the invention according to claim 7 is a method of separating the abrasive from the mixture of the abrasive and the foreign matter, wherein the abrasive and foreign matter mixture is supplied to the supply port of the separator body through the air flow.
  • the abrasive is dropped from a number of openings in the sieve by creating an air flow from the upper side of the slope to the lower side on the sieve that is fed together and tilted inside the separator body.
  • the foreign material that has not fallen from the sieve is collected in the foreign substance reservoir, and the flow of air that has passed over the sieve is discharged from the outlet of the separator body.
  • the invention according to claim 8 is the polishing material separation method according to claim 7, wherein the screen is tilted on the screen while vibrating or swinging the screen tilted inside the separator body. It is characterized by creating a flow of air from the upper side to the lower side.
  • the invention according to claim 9 is a method of separating the abrasive from the mixture of the abrasive and the foreign material, wherein the abrasive and the foreign material are supplied to the supply port of the separator body together with the air flow. Then, while vibrating or oscillating the sieve inside the separator body, a flow of air from one side of the sieve to the other side is created on the sieve, thereby cleaning the abrasive from the multiple openings of the sieve. The foreign material that has not fallen from the sieve is collected in the foreign substance reservoir, and the flow of air that has passed over the sieve is discharged from the outlet of the separator body.
  • foreign matter is collected in the foreign matter reservoir by creating an air flow from one side of the sieve to the other side while vibrating or swinging the sieve inside the separator body. Therefore, it becomes possible to automatically collect foreign substances in the foreign substance reservoir without cleaning the sieve.
  • foreign substances with larger diameters and smaller diameters than the abrasive are separated in one stage without being separated in two stages, so that the structure of the separator can be simplified and an inexpensive apparatus. Can be.
  • FIG. 1 shows a schematic diagram of a recovery apparatus in which a separator according to a first embodiment of the present invention is incorporated.
  • the blasting chamber has a blasting material that has been struck against the workpiece 2, rust on the surface of the workpiece, welding rods, Foreign matter such as welding slag and powdered abrasive are scattered.
  • the mixture of the abrasive and the foreign material is recovered by the recovery device 1.
  • the vacuum pump 9 as the vacuum recovery machine is operated, the mixture is sucked from the hose 3 like a vacuum cleaner.
  • the recovery device 1 separates the abrasive from the mixture and stores only the abrasive in the storage tank 4.
  • the polishing material stored in the storage tank 4 is transferred to the blast tank 5 and reused for blasting. Foreign matter is collected in the foreign matter reservoir 7 and the dust collector 8 of the separator 6.
  • the recovery device 1 includes a separator 6 that separates the abrasive from the mixture of the abrasive and foreign matter, a storage tank 4 that stores the abrasive separated by the separator 6, a blast tank 5 that is provided below the storage tank 4, a vacuum A vacuum pump 9 as a recovery machine and a cyclone 8 as a dust collector are provided.
  • a separator 6 that separates the abrasive from the mixture of the abrasive and foreign matter
  • a storage tank 4 that stores the abrasive separated by the separator 6
  • a blast tank 5 that is provided below the storage tank 4
  • a vacuum A vacuum pump 9 as a recovery machine
  • a cyclone 8 as a dust collector
  • the separator 6 separates the polishing material from the mixture of the polishing material and the foreign matter and collects it in the storage tank 4.
  • the large-diameter foreign material from which the abrasive is separated is stored in the foreign material reservoir 7 in the separator 6.
  • the fine powdery foreign matter discharged together with the air flow from the discharge port 6 b of the separator 6 is collected by the dust collector 8.
  • a vacuum exhaust fan other than a vacuum pump can also be used for a vacuum recovery machine.
  • FIG. 2 shows a vertical sectional view of the separator 6 in the first embodiment of the present invention.
  • the separator is provided on the upper part of the storage tank 4.
  • the separator includes a separator body 12 that forms the outer shape of the separator, a punching metal or wire mesh 14 as a screen provided to be inclined inside the separator body 12, a foreign substance reservoir 7 provided at the tip of the inclined punching metal or wire mesh 14, Is provided.
  • the separator body 12 is provided with a supply port 6a through which a mixture of the abrasive and foreign matter is supplied together with the air flow, and a discharge port 6b connected to the vacuum pump 9 side.
  • the supply port 6 a is a flanged pipe provided integrally with the side wall 12 a of the separator body 12.
  • the supply port 6a is connected to the hose 3 side.
  • the discharge port 6b is a flanged pipe provided integrally with the top plate 12b of the separator body 12.
  • the pipe constituting the discharge port 6b is bent 90 degrees so as to face the horizontal direction.
  • the top plate 12 b of the separator body 12 is inclined according to the inclination of the punching metal or the metal mesh 14.
  • the top plate 12 b and the punching metal or wire mesh 14 are parallel to each other, and an air flow path 18 that faces obliquely downward is formed between the top plate and the punching metal or wire mesh 14.
  • the air flow path 18 has an upper surface formed by a top plate 12b of the separator body 12 and left and right side surfaces formed by a pair of side walls 12c (see FIG. 3) opposed to the separator body 12 and a bottom surface formed by a punching metal or a metal mesh 14.
  • the cross-sectional shape of the air flow path 18 is a rectangular shape, and its cross-sectional area is larger than the cross-sectional area of the pipe of the supply port 6a. For this reason, the air guided from the supply port 6a to the air flow path 18 reduces the speed in the air flow path 18 and drops the abrasive material conveyed along with the air flow.
  • a plurality of baffle plates 19 projecting inward of the air flow path 18 are attached to the pair of side walls 12 c of the separator body 12. .
  • the plurality of baffle plates form an air flow 20 that meanders in a plane parallel to the punching metal or wire mesh 14.
  • the front end 19a of the baffle plate 19 is directed downstream so as to make the air flow 20 smooth.
  • the punching metal or wire mesh 14 has a large number of openings 14a for dropping the polishing material.
  • the diameters of the large number of openings 14a are set to such a size that the abrasive 31 (see FIG. 2) is dropped, but the foreign matter 32 (see FIG. 2) having a diameter larger than that of the abrasive 31 is not dropped. For example, it is set slightly larger than the diameter of the abrasive.
  • the length of the punching metal or wire mesh 14 is longer than the width of the storage tank 4 and covers the entire storage tank 4. This prevents the foreign material 32 having a diameter larger than that of the opening 14a of the punching metal or the metal mesh 14 from entering the storage tank 4.
  • the punching metal or wire mesh 14 is inclined so that the sieving foreign matter moves on the punching metal or wire mesh 14.
  • the tilt angle may not be present, but it is preferable to set the tilt angle to 10 degrees or more with respect to the horizontal plane because the movement of the sieved foreign matter on the punching metal or the metal mesh 14 becomes smoother.
  • a vibration device 21 that vibrates or swings the punching metal or wire mesh 14 is attached to the punching metal or wire mesh 14.
  • the vibration device 21 for example, a device that vibrates or swings by rotating an eccentric shaft body is used.
  • the foreign matter on the punching metal or the metal mesh 14 is conveyed to the foreign matter reservoir 7 by the combined use of the inclination of the punching metal or the metal mesh 14 and the vibration by the vibration device 21.
  • the tip of the inclined punching metal or wire mesh 14 is interrupted, and the foreign matter that has moved on the punching metal or wire mesh 14 is lowered from the foreign material opening 22 at the tip of the punching metal or wire mesh 14. fall into.
  • a box-shaped foreign material reservoir 7 for storing the foreign matter 32 is provided below the foreign object opening 22, a box-shaped foreign material reservoir 7 for storing the foreign matter 32 is provided below the foreign object opening 22, a box-shaped foreign material reservoir 7 for storing the foreign matter 32 is provided below the foreign object opening 22, a box-shaped foreign material reservoir 7 for storing the foreign matter 32 is provided below the foreign object opening 22, a box-shaped foreign material reservoir 7 for storing the foreign matter 32 is provided below the foreign object opening 22, a box-shaped foreign material reservoir 7 for storing the foreign matter 32 is provided below the foreign object opening 22, a box-shaped foreign material reservoir 7 for storing the foreign matter 32 is provided below the foreign object opening 22, a box-shaped foreign material reservoir 7 for storing the foreign matter 32 is provided below the foreign object opening 22, a box-shaped
  • a discharge port 6b of the separator body 12 is provided above the foreign substance reservoir 7. After the air flowing into the air flow path 18 passes over the punching metal or the metal mesh 14, it collides with the side wall 12d of the separator body 12, changes its direction on the foreign substance reservoir, and flows out from the discharge port 6b.
  • the separator of this embodiment when the vacuum pump 9 is operated, the mixture of the abrasive and the foreign matter is supplied to the supply port 6a of the separator body 12 together with the air flow. Since the polishing material 31 hits the baffle plate 19 and the speed is reduced, it falls on the punching metal or the wire mesh 14. The abrasive 31 falls further down through a number of openings in the punching metal or wire mesh 14 and is stored in the storage tank 4.
  • a foreign substance having a large specific gravity collides with the baffle plate 19 together with the polishing material and falls onto the punching metal or the metal mesh 14.
  • Foreign matter larger than the numerous openings in the punching metal or wire mesh 14 remains on the punching metal or wire mesh 14. However, this foreign matter rolls or slips on the punching metal or wire mesh 14 due to the inclination of the punching metal or wire mesh 14, the vibration or swing of the punching metal or wire mesh 14, and the flow of air. Collected in pool 7
  • the fine powdery foreign matter passes over the punching metal or the metal mesh 14 by the air flow, and is discharged from the discharge port 6b of the separator body 12 together with the air flow.
  • the fine powdery foreign matter discharged from the discharge port 6b is collected by a dust collector 8 (see FIG. 1) provided downstream of the separator 6.
  • the flow rate of air in the air flow path 18 is set to a speed at which the abrasive is dropped while fine powdery foreign matter can be conveyed by air.
  • the air flow created on the punching metal or wire mesh 14 changes its direction above the foreign substance reservoir 7 and is discharged from the discharge port 6b.
  • the air flow changes direction, a part of the foreign matter falls from the foreign matter opening 22 and is stored in the foreign matter reservoir 7.
  • FIG. 4 shows a vertical sectional view of the separator 34 in the second embodiment of the present invention.
  • the vibration device is not provided in the punching metal or the metal mesh 14 as a sieve. If the foreign material 32 can be collected in the foreign material reservoir 37 only by the inclination of the punching metal or the metal mesh 14 and the air flow without vibrating or swinging the punching metal or the metal mesh 14, the vibration device can be omitted.
  • the discharge port 36 of the separator body 35 is provided not on the top plate 35b of the separator body 35 but on the side wall 35d. Although fine powdery foreign matter is easily discharged from the discharge port 36 along with the air flow, the foreign matter may be removed by the downstream dust collecting device 8.
  • FIG. 5 shows a separator in the third embodiment of the present invention.
  • the punching metal as a sieve or the metal net 41 and the top plate 42 are not inclined.
  • the air flow path 43 faces in the horizontal direction. Foreign matter 32 larger than the many openings of the punching metal or wire mesh 41 is collected in the foreign matter reservoir 44 only by the vibration or swing of the punching metal or wire mesh 41 and the air flow.

Abstract

L'invention porte sur un séparateur pour matières abrasives et matières de nettoyage, le séparateur ayant une configuration simple et capable de collecter automatiquement les matières étrangères sans exiger de nettoyage. Le séparateur (6) pour matières abrasives et matières de nettoyage sépare les matières abrasives et les matières de nettoyage d'un mélange de matières abrasives et de nettoyage et de matières étrangères. Un tamis (14) ayant un grand nombre d'ouvertures pour permettre aux matières abrasives et de nettoyage (31) de tomber à travers elles est prévu dans le corps (12) du séparateur qui comporte une ouverture d'alimentation (6a) et une ouverture d'évacuation (6b). Le tamis (14) est en pente et un flux d'air qui circule du côté supérieur vers le côté inférieur de la pente est crée sur le tamis (14). Le résultat est que les matières étrangères (32) qui ne tombent pas du tamis (14) sont collectées dans un collecteur de matières étrangères (7).
PCT/JP2010/061963 2009-07-31 2010-07-15 Séparateur pour matières abrasives et matières de nettoyage, et procédé pour séparer des matières abrasives et des matières de nettoyage WO2011013521A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011524735A JP5432265B2 (ja) 2009-07-31 2010-07-15 研掃材のセパレータ及び分離方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009-178812 2009-07-31
JP2009178812 2009-07-31

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WO2011013521A1 true WO2011013521A1 (fr) 2011-02-03

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PCT/JP2010/061963 WO2011013521A1 (fr) 2009-07-31 2010-07-15 Séparateur pour matières abrasives et matières de nettoyage, et procédé pour séparer des matières abrasives et des matières de nettoyage

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WO (1) WO2011013521A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013005469A1 (fr) * 2011-07-07 2013-01-10 新東工業株式会社 Dispositif de grenaillage
JP2016221583A (ja) * 2015-05-27 2016-12-28 株式会社アルプスエンジニアリング 研磨材分級装置
WO2021119895A1 (fr) * 2019-12-16 2021-06-24 江苏港程物流综合服务有限公司 Séparateur grenailles-scories
KR20220123863A (ko) * 2021-03-02 2022-09-13 주식회사 대불조선 공정 개선을 위한 추적식 블라스팅 장치

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4613660Y1 (fr) * 1968-02-13 1971-05-14
DE19802197C1 (de) * 1998-01-22 1999-09-23 Maerzheuser Strahltechnik Gmbh Sammelbehälter für eine Schleuderstrahlvorrichtung
US20070093180A1 (en) * 2001-12-28 2007-04-26 Gadd Michael W Method and apparatus for abrasive recycling and waste separation system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4613660Y1 (fr) * 1968-02-13 1971-05-14
DE19802197C1 (de) * 1998-01-22 1999-09-23 Maerzheuser Strahltechnik Gmbh Sammelbehälter für eine Schleuderstrahlvorrichtung
US20070093180A1 (en) * 2001-12-28 2007-04-26 Gadd Michael W Method and apparatus for abrasive recycling and waste separation system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013005469A1 (fr) * 2011-07-07 2013-01-10 新東工業株式会社 Dispositif de grenaillage
JP2016221583A (ja) * 2015-05-27 2016-12-28 株式会社アルプスエンジニアリング 研磨材分級装置
WO2021119895A1 (fr) * 2019-12-16 2021-06-24 江苏港程物流综合服务有限公司 Séparateur grenailles-scories
KR20220123863A (ko) * 2021-03-02 2022-09-13 주식회사 대불조선 공정 개선을 위한 추적식 블라스팅 장치
KR102450168B1 (ko) * 2021-03-02 2022-10-04 (주)대불조선 공정 개선을 위한 추적식 블라스팅 장치

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