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US3790007A - Abrasive recovery system - Google Patents

Abrasive recovery system Download PDF

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Publication number
US3790007A
US3790007A US00197089A US3790007DA US3790007A US 3790007 A US3790007 A US 3790007A US 00197089 A US00197089 A US 00197089A US 3790007D A US3790007D A US 3790007DA US 3790007 A US3790007 A US 3790007A
Authority
US
United States
Prior art keywords
floor
scraper
channel
scraper means
away
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.)
Expired - Lifetime
Application number
US00197089A
Other languages
English (en)
Inventor
B Sprague
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.)
Fruehauf Corp
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
Application granted granted Critical
Publication of US3790007A publication Critical patent/US3790007A/en
Assigned to FRUEHAUF CORPORATION reassignment FRUEHAUF CORPORATION MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE DECEMBER 23, 1986 DECEMBER 12, 1986, FEBRUARY 27, 1987 (DELAWARE) Assignors: FRUEHAUF CORPORATION, A MI CORP., FRUEHAUF HOLDINGS, INC., A CORP. OF DE, LMC ACQUISITION CORPORAITON, LMC ACQUISITION CORPORATION, A MI CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B24C9/003—Removing abrasive powder out of the blasting machine
    • 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

  • a power source is connected UNITED STATES PATENTS to the scraper assemblies for reciprocation thereof.
  • a Conveyor y be located in the channel to convey col- 3,530,832 9 1970 Satnick 198/224 x lected abrasives y from the floor 961,486 6/1910 Dewey 198/224 1,426,648 8/1922 Johns 198/224 x 8 Clam, 5 awmg F'gures PATENTED 5 74 sum 2 or 2 BRl/VTON SPRA GUE Wm 21" F? INVENTOR.
  • the present invention pertains to abrasive blasting apparatus. In particular, it relates to the recovery of spent abrasives in an abrasive blasting system.
  • abrasives such as sand or other natural or synthetic materials have been used many years for cleaning various objects or for treating the surface of various materials in some other manner.
  • abrasive blasting systems are sometimes used in etching glass.
  • the sand or other abrasive is carried in a stream of air or water, at high velocitiesfor impingement against the object to be treated.
  • recovery systems are provided whereby the spent abrasives may be recovered and processed, if necessary, for reuse.
  • the abrasive recovery system of the present invention is preferably enclosed in a building and comprises a grating or perforated floor above which the blasting operation is performed. Below the grating is a solid floor onto which spent abrasives may fall, after passing through the grating. A set of collector flights or scrapers are mounted for movement across the floor to scrape abrasives deposited on the floor toward a central collection channel in the floor.
  • the collector flights and collection channel blades may be connected by means of cables to a suitable power source adapted for moving the cables first in one direction then another. Both the collector flights and the central collection channel blades may be adapted to pivot away from the scrape in one direction only.
  • FIG. 1 is a plan view of the recovery system of the invention, as viewed from above, with most of the grating broken away;
  • FIG. 2 is a partial view in elevation and in section of the recovery system shown in FIG. 1, taken along line 22 thereof; 7
  • FIG. 3 is an enlarged fragmentary sectional elevation view, similar to the. view in FIG. 2, but showing greater detail of the invention
  • FIG. 4 is an elevation view in section, showing the pivotal mounting of collector scraper blades utilized in the invention.
  • FIG. 5 is a fragmentary sectional view of the pivotal mounting of FIG. 4 taken along line 55 thereof.
  • FIGS. 1, 2 and 3 there is shown apparatus for recovery of spent abrasives in an abrasive blasting system. Although it is not necessary, this apparatus would normally be enclosed in a room or building.
  • a grating or perforated floor is supported above a solid floor 12 by a support frame which may include longitudinal beams 21, cross beams 22, and angle member 23, or any other suitable framing construction. Blasting would take place above grating 10, on which would be supported the workers, the blasting equipment, and the work to be blasted. Longitudinal rails might be provided for transporting work or blasting equipment to and from the blasting area. As spent abrasives' fall from the blasting work, they' drop through the perforated floor or grating 10 onto the solid floor 12.
  • scraper assemblies 30 are provided for reciprocating movement across the floor 12.
  • these scraper assemblies 30 may comprise lateral blades 31 supported on a frame including lateral cross members 35 and longitudinal members 36 (also see FIG. 1).
  • the ends of cross members 35 may be provided with slide pads 38 adapted for sliding engagement with longitudinal rails 39 supported by floor 12.
  • the entire scraper assembly 30 may bemoved toward or away from a cen- Thus they tral collection channel 14 by sliding along the rails 39.
  • the longitudinal member 36 of the scraper assembly prevents the blades 31 from being cocked out of alignment or becoming disengaged from the rail 39.
  • a cable and pulley arrangement comprising cables 41-45 and pulleys 51-58 connected to a Wench 61 and power unit 60 provides a means for reciprocating the scraper units levered shaft members 73 attached to the blades 31 by bolts 74.
  • the upper portion of each blade 31 is provided with a slot or aperture 33 through which one of the cables 43, 44, 45 passes.
  • Attached to the cable 45 at axially spaced positions is a pair of collar members 77, 78. These collar members 77, 78 are of a diameter greater than the width of aperture 33.
  • one of the collars 78 engages the back of blade 31 and causesblade 31 and the entire scraper assembly 30 to be pulled across floor 12, scraping the spent abrasives 18 toward the central collection channel 14.
  • the cross frame member 35 stops the blade 31 in the solid line position of FIG. 4.
  • the elevator 100 may comprise a bucket type conveyor 101.
  • the collection channel scrapers 90 may be similar to the floor scraper assemblies 30, but employing pivoted blades 91 of a length substantially less than the floor scraper blades 31.
  • the collection scraper assemblies 90 could be reciprocated by cable and pulley arrangements 95, 96, 97 connected to wench 61 in a manner similar to the floor scrapers 30.
  • Other types of conveyor assemblies could be used in the central collector channel 14. For example, a continuous belt conveyor would be suitable.
  • the floor scraper assemblies 30 are reciprocating back and forth across the floor 12.
  • the blades 31 scrape the abrasives toward the central collection channel 14.
  • the blades 31 are pivoted away from the floor and do not disturb the abrasives.
  • the abrasives reach the channel 14, they are transported laterally by the scraper assemblies 90 toward the side where they are picked up by the elevator assembly 100 for further transportation and processing if neccessary.
  • the recovery apparatus of the present invention is very efficient. Substantially, the entire floor area 12 is scraped by the scraper assemblies 30. No complicated air or water collection apparatus is required. Nor does the recovery system of the present invention rely on gravity collection. In short, it is a very efficient, simply operated and economically manufactured recovery system.
  • the scraper assemblies 30 and/or 90 could be wired to electrical apparatus for electromagnetizing the blades so as to attract metallic granules, as the blades move across the floor.
  • the magnetism couldbe removed at collec tion points to allow separation of the granules from the blades.
  • the exemplary embodiment of the invention has been described for use with metallic blasting systems it may be used with other types of blasting materials. It is therefore intended that the scope of the invention be limited only by the claims which follow.
  • An abrasive recovery system comprising:
  • a frame member comprising lateral members connected by at least one longitudinal member, said frame member adapted for longitudinal movement on said rail means;
  • scraper means for moving spent abrasive away from said floor to said channel, said scraper means including mounting means for pivotally connecting said scraper means to one of said lateral members, said frame member further having stop means thereon for limiting the pivoting movement of said scraper means;
  • conveyor means in said channel for moving said spent abrasive collected in said channel away from said floor.
  • An abrasive recovery system comprising:
  • a frame member comprising lateral members connected by at least one longitudinal member, said frame member adapted for longitudinal movement on said rail means;
  • At least one scraper means for moving spent abrasive away from said second floor to said channel, said scraper means including mounting means for pivotally connecting said scraper means to one of said lateral members, said frame member further having stop means thereon for limiting the pivoting movement of said scraper means;

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pusher Or Impeller Conveyors (AREA)
  • Cleaning In General (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Soil Working Implements (AREA)
  • Framework For Endless Conveyors (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
US00197089A 1971-11-09 1971-11-09 Abrasive recovery system Expired - Lifetime US3790007A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19708971A 1971-11-09 1971-11-09

Publications (1)

Publication Number Publication Date
US3790007A true US3790007A (en) 1974-02-05

Family

ID=22728006

Family Applications (1)

Application Number Title Priority Date Filing Date
US00197089A Expired - Lifetime US3790007A (en) 1971-11-09 1971-11-09 Abrasive recovery system

Country Status (11)

Country Link
US (1) US3790007A (fr)
JP (1) JPS5319157B2 (fr)
BE (1) BE791125A (fr)
DD (1) DD103848A5 (fr)
ES (1) ES408441A1 (fr)
FR (1) FR2160062A5 (fr)
GB (1) GB1373449A (fr)
IT (1) IT985516B (fr)
NL (1) NL7214685A (fr)
NO (1) NO142991C (fr)
SE (1) SE395868B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863392A (en) * 1974-03-21 1975-02-04 Leroy C Haker Sand blast room
US4018329A (en) * 1976-02-13 1977-04-19 Safety Steel Service, Inc. Abrasive recovery system
US4534301A (en) * 1984-06-08 1985-08-13 General Electric Company Incinerator ash removal systems
US4685856A (en) * 1985-05-06 1987-08-11 Hesse Jr Ronald F Pivoting gate unloader
US4764220A (en) * 1984-04-02 1988-08-16 Ransburg-Gema Ag Method and apparatus for cleaning a powder coating booth
US5219062A (en) * 1990-03-02 1993-06-15 Hans Oetiker Ag Maschinen- Und Apparatefabrik Conveyor arrangement for loose material, especially blasting materials for sand-blasting installations
WO2014107116A1 (fr) * 2013-01-04 2014-07-10 Sciteex Sp. Z.O.O. Couloir de transport d'abrasif dans une chambre à impact et procédé de déplacement d'un ensemble d'axes dans la chambre à impact dotée du couloir de transport d'abrasif
WO2015088439A1 (fr) * 2013-12-10 2015-06-18 Blastechnik Pte Ltd Système de récupération de sol pour des travaux de dynamitage

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE842296L (en) * 1984-11-06 1986-05-06 Oseney Ltd Storage system which may be used for curing cheese
DE8707059U1 (de) * 1987-05-16 1987-07-09 Friedrich Goldmann GmbH & Co, 6800 Mannheim Sandstrahlkabine
FR2700156B1 (fr) * 1993-01-06 1995-03-24 Getrasur Râcleur, châssis de raclage ainsi équipé et installation de transfert de matières.
RU2552811C1 (ru) * 2014-03-11 2015-06-10 Виктор Иванович Метёлкин Установка для абразивоструйной обработки изделий

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863392A (en) * 1974-03-21 1975-02-04 Leroy C Haker Sand blast room
US4018329A (en) * 1976-02-13 1977-04-19 Safety Steel Service, Inc. Abrasive recovery system
US4764220A (en) * 1984-04-02 1988-08-16 Ransburg-Gema Ag Method and apparatus for cleaning a powder coating booth
US4534301A (en) * 1984-06-08 1985-08-13 General Electric Company Incinerator ash removal systems
US4685856A (en) * 1985-05-06 1987-08-11 Hesse Jr Ronald F Pivoting gate unloader
US5219062A (en) * 1990-03-02 1993-06-15 Hans Oetiker Ag Maschinen- Und Apparatefabrik Conveyor arrangement for loose material, especially blasting materials for sand-blasting installations
WO2014107116A1 (fr) * 2013-01-04 2014-07-10 Sciteex Sp. Z.O.O. Couloir de transport d'abrasif dans une chambre à impact et procédé de déplacement d'un ensemble d'axes dans la chambre à impact dotée du couloir de transport d'abrasif
US9567160B2 (en) 2013-01-04 2017-02-14 Sciteex Sp. Z.O.O. Corridor for transporting abrasive in an impact chamber and a method for moving an axle set in the impact chamber having the corridor for transporting abrasive
WO2015088439A1 (fr) * 2013-12-10 2015-06-18 Blastechnik Pte Ltd Système de récupération de sol pour des travaux de dynamitage

Also Published As

Publication number Publication date
NL7214685A (fr) 1973-05-11
SE395868B (sv) 1977-08-29
BE791125A (fr) 1973-03-01
JPS4862089A (fr) 1973-08-30
ES408441A1 (es) 1975-11-16
IT985516B (it) 1974-12-10
FR2160062A5 (fr) 1973-06-22
DD103848A5 (fr) 1974-02-12
NO142991B (no) 1980-08-18
GB1373449A (en) 1974-11-13
DE2254458B2 (de) 1976-03-18
DE2254458A1 (de) 1973-05-30
JPS5319157B2 (fr) 1978-06-19
NO142991C (no) 1980-11-26

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Legal Events

Date Code Title Description
AS Assignment

Owner name: FRUEHAUF CORPORATION

Free format text: MERGER;ASSIGNORS:LMC ACQUISITION CORPORATION, A MI CORP.;FRUEHAUF CORPORATION, A MI CORP.;LMC ACQUISITION CORPORAITON;AND OTHERS;REEL/FRAME:005132/0001

Effective date: 19870330