ASME B20 1-2009 Safety Standard for Conveyors and Related Equipment《输送装置及有关设备的安全标准》.pdf

1、AN AMERICAN NATIONAL STANDARDSafety Standard for Conveyors and Related EquipmentASME B20.1-2009(Revision of ASME B20.1-2006)Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME B20.1-2009(Revision

2、 of ASME B20.1-2006)Safety Standardfor Conveyorsand RelatedEquipmentAN AMERICAN NATIONAL STANDARDCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Date of Issuance: March 16, 2009The next edition of

3、 this Standard is scheduled for publication in 2012. This Standard will becomeeffective 1 year after the Date of Issuance. There will be no addenda issued to this edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard. Interpretations are inc

4、luded with each edition. Interpretations are also published on theASME Web site under the Committee Pages at http:/cstools.asme.org as they are issued.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as m

5、eeting the criteria for American NationalStandards. The Standards Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate. The proposed code or standard was madeavailable for public review and c

6、omment that provides an opportunity for additional public input from industry, academia,regulatory agencies, and the public-at-large.ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity.ASME does not take any position with respect to the validity of a

7、ny patent rights asserted in connection with anyitems mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent, nor assume any such liability. Users of a code or standard are expresslyadvised that dete

8、rmination of the validity of any such patent rights, and the risk of infringement of such rights, isentirely their own responsibility.Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or

9、standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the establishedASME procedures and policies, which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval

10、 system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue, New York, NY 10016-5990Copyright 2009 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyright ASME International Provided by I

11、HS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-CONTENTSForeword ivCommittee Roster . viSummary of Changes viiIntroduction 11 Scope 12 Reference to Other Codes 13 Intent 14 Definitions 25 General Safety Standards 66 Specific Safety Standa

12、rds 9iiiCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-FOREWORDThe first edition of the Safety Standard for Conveyors, Cableways, and Related Equipmentwas sponsored by the National Conservation B

13、ureau and the American Society of MechanicalEngineers. It was approved by the American Standards Association (now known as the AmericanNational Standards Institute, Inc.) as American Standard B20.1-1947.In 1950, the Sectional Committee B20 was reorganized under the sponsorship of the AccidentPrevent

14、ion Department of the Association of Casualty and Surety Companies and the AmericanSocietyofMechanicalEngineers.FourSubcommitteeswereformedtomakespecificrecommenda-tions for revisions. These were:Subcommittee No. 1 Scope and IntentSubcommittee No. 2 Nomenclature and DefinitionsSubcommittee No. 3 Por

15、table ConveyorsSubcommittee No. 4 Conveyors in GeneralSection 5, Definitions, was based on the conveyor industry dictionary, Conveyor Terms andDefinitions, as prepared by the Technical Committee (now the Engineering Conference) of theConveyor Equipment Manufacturers Association (CEMA).The second edi

16、tion of this Standard, dated April 1955, was submitted in draft form to theSectionalCommitteeforapprovalanddistributedtoindustryingeneralforcriticismandcomment.Approval was then given by the Sectional Committee, the sponsors, and the American StandardsAssociation.TheStandard wasdesignatedasAmerican

17、StandardB20.1-1957onDecember 4,1957.In 1967, the third edition of the Safety Standard for Conveyors and Related Equipment wassubmitted in draftform to representatives ofindustry for comment. It wassubsequently approvedby the Sectional Committee, the sponsors, and the American National Standards Inst

18、itute forissuance as American National Standard B20.1-1972 on February 17, 1972.ThefourtheditionoftheSafetyStandardforConveyorsandRelatedEquipmentwasundertakenin 1973 to assist the Office of Safety and Health Standards, U.S. Department of Labor, whichindicated interest in the Standard.A change in fo

19、rmat from a specification standard to a performance standard was deemednecessary. Simply stated, the Standard describes what end result should be achieved without thelimiting specification usually given by a design and without the inclusion of finite materialselection or dimensions.The fourth editio

20、n was subsequently approved by the B20 American National StandardsCommittee, the Secretariat, and the American National Standards Institute for issuance asAmerican National Standard B20.1-1976 on June 14, 1976.In accordance with the policy of the American National Standards Institute, Inc., the B20C

21、ommittee began working on a revision of B20.1-1976 in February 1980. The fifth edition wasapproved by the B20 Committee, the sponsor (ASME), and the American National StandardsInstitute for issuance as American National Standard B20.1-1984 on March 13, 1984.Pertheproceduresoutlinedandimplementedinth

22、efifthedition,thesixtheditionwasapprovedby the B20 Committee, the sponsor (ASME), and the American National Standards Institute forissuance as American National Standard B20.1-1987 on March 11, 1987. The seventh edition wasapproved for issuance as an American National Standard on March 26, 1990. The

23、 eighth editionwas approved for issuance as an American National Standard on August 9, 1993.The ninth edition was a compilation of changes occurring in the 1993 edition, B20.1a-1994, andB20.1b-1995. It was approved for issuance as an American National Standard on May 23, 1997.The 2000 edition was a

24、compilation of changes from the B20.1a-1997 and B20.1b-1998 addenda.It was approved for issuance as an American National Standard on December 14, 2000.FollowingapprovalbytheB20CommitteeandASME,andafterpublicreview,ASMEB20.1-2003was approved by the American National Standards Institute on October 9,

25、2003. The 2003 editionwas a revision to B20.1-2000.ivCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME B20.1-2006 was approved by the American National Standards Institute on September7, 2006.

26、The 2006 edition was a revision to B20.1-2003.ASME B20.1-2009 was approved by the American National Standards Institute on February 2,2009. This 2009 edition is a revision to ASME B20.1-2006. This Standard shall become effective1 year from the date of issuance.Safety standards for mechanical power a

27、pparatus are published in ASME B15.1-1996 (SafetyStandardforMechanicalPowerTransmissionApparatus).Safetystandardsforlockoutandtagoutprocedures are published in ANSI Z244.1-1982 (R1993) (Safety Requirements for Lock Out/TagOut of Energy Sources)and OSHA Standard Number 29 CFR1910.147 “The Control of

28、HazardousEnergy (Lockout/ Tagout).” The use of recommendations and guidelines as published by theConveyor Equipment Manufacturers Association (CEMA) “Safety Label Brochure No. 201” and“Guidelines for Vertical Reciprocating Conveyors” published by the Conveyor Product Sectionof The Material Handling

29、Institute in conjunction with ASME B20.1 is encouraged, as are theabove-mentioned standards.The values stated within this Standard are in both SI and U.S. Customary units, with the latterplaced in parentheses. These units are essentially interchangeable, and, depending on the country,as well as indu

30、stry preferences, the user will determine which values are to be regarded as thestandard.Safetycodesandstandardsareintendedtoenhancepublicsafety.Revisionsresultfromcommit-teeconsiderationoffactorssuchastechnologicaladvances,newdata,andchangingenvironmentaland industry needs. Revisions do not imply t

31、hat previous editions were inadequate.vCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME B20 COMMITTEESafety Standard for Conveyors and RelatedEquipment(The following is a roster of the Committ

32、ee at the time of publication of this Standard.)STANDARDS COMMITTEE OFFICERSR. W. Parry, ChairJ. J. Galante, Vice ChairR. Mohamed, SecretarySTANDARDS COMMITTEE PERSONNELT. M. Berger, Martin Sprocket however,they should not contain proprietary namesor information.ASME procedures provide for reconside

33、ration of anyinterpretation when or if additional information thatmight affect an interpretation is available. Further, per-sons aggrieved by an interpretation may appeal to thecognizantASMEcommittee.ASME doesnot“approve,”“certify,” “rate,” or “endorse” any item, construction,proprietary device, or

34、activity.4 DEFINITIONS1actuator: a device that initiates the action of controls orcontrollers and is manually operated. The actuator maybe a push button, toggle switch, foot pedal, hand lever,hand-set timer, or any other device that performs thedescribed function.antirunaway: asafetydevicetostopadec

35、liningconveyorandthuspreventmovingawayintheeventofamechani-cal or electrical failure.apron pan: one of a series of overlapping or interlockingplates or shapes that, together with others, form theconveyor bed.automatically controlled: describes the operation be theaction of a mechanism that is initia

36、ted by some imper-sonal influence, such as a conveyor that is started by alow-level bin indicator.backstop: a mechanical device to prevent reversal of aloaded conveyor under action of gravity when forwardtravel is interrupted.bed:(a) that part of a conveyor upon which the load orcarrying medium rest

37、s or slides while being conveyed(b) in bulk material conveyors, the mass of materialbeing conveyed1Many definitions were extracted from the latest revision ofConveyor Terms and Definitions, Book No. 102, prepared by theEngineering Conference of the Conveyor EquipmentManufacturersAssociation,Washingt

38、on,DC20850.Fordefinitionsof terms other than those defined in section 4, refer to this publi-cation.2belt idler: a roller or series of rollers that supports thebelt of a belt conveyor.belt tripper: a device incorporating a system of pulleysthat causes the conveyor belt to discharge material atone or

39、 more points along the length of the conveyor.boom: a cantilevered member or structure that may behinged, fixed, or pivoted.brake: a friction device for slowing down conveyor com-ponents, bringing conveyor equipment to a controlledstop, holding traveling or traversing equipment in aselected location

40、, preventing reverse travel, and control-ling overspeed due to the action of gravity.bunker: a large bin or compartment for storage of bulkmaterials.car unloader: a type of conveyor characterized by a shal-low, horizontal loading section that enables it to receiveand unload material from hopper bott

41、om cars withoutrequiring a pit or other excavation.carrier:(a) a device attached to or hung from trolleys to sup-port the load(b) thereceptacleinwhichobjectsareplacedfortrans-mittal through a conveying system(c) themovingpartofaverticalorinclinedreciprocat-ing conveyor that supports the loadchain: a

42、 series of links pivotally joined together to form amediumforconveyingortransmittingmotionorpower.General classes of chain common to conveyors aredetachable, pintle, combination, roller, rivetless, coil,inverted tooth, and bar link chains.chute: a trough through which bulk materials or objectsare di

43、rected and lowered by gravity. The trough may beopen or enclosed, straight or curved.control: the system governing the starting, stopping,direction of motion, acceleration, speed, retardation,identification, and function of the moving member in apredetermined manner.controller: an electromechanical

44、device or assembly ofdevices for starting, stopping, accelerating, or decelerat-ing a drive or serving to govern in some predeterminedmanner the power delivered to the drive.conveying medium: that portion of a conveyor that movesor carries materials, packages, or objects.conveyor: a horizontal, incl

45、ined, or vertical device formoving or transporting bulk material, packages, orobjects in a path predetermined by the design of thedeviceandhavingpointsofloadinganddischarge,fixedorselective.Includedareskiphoistsandverticalrecipro-cating and inclined reciprocating conveyors. Typicalexceptions are tho

46、se devices known as industrial trucks,tractors, trailers, tiering machines (except pallet loadtierers), cranes, hoists, power shovels, power scoops,bucketdraglines,trenchers,platformelevatorsdesignedCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or

47、 networking permitted without license from IHS-,-,-ASME B20.1-2009to carry passengers or an operator, manlifts, movingwalks, moving stairways (escalators), highway or rail-wayvehicles,cableways,tramways,dumbwaiters,pneu-matic conveyors, robots, or integral machine transferdevices.conveyor, apron: a

48、conveyor in which a series of apronpans forms a moving bed.conveyor, belt: anendlessfabric,rubber,plastic,leather,or metal belt operating over suitable drive, tail end, andbend terminals and over belt idlers or slider bed forhandling bulk materials, packages, or objects placeddirectly upon the belt.

49、conveyor, bucket: any type of conveyor in which thematerial is carried in a series of buckets.conveyor, chain: any type of conveyor in which one ormorechainsactastheconveyingmedium;aBritishtermfor trolley conveyor.conveyor, declining: a conveyor transporting down aslope.conveyor, electrified monorail: a conveyor consisting ofa network of tracks or guide rails that may be installedho