IS 8646: Conveyors - Scrapper (flight) - General requirements

15 Pages·1994·1.4 MB·English

by  Bureau of Indian Standards

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“जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ”
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“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 8646 (1994): Conveyors - Scrapper (flight) - General
requirements [MED 6: Continuous Bulk Conveying, Elevating,
Hoisting Aerial Ropeways and Related Equipment]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee””
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”

IS 8646 : 1994

( IJ’Th@ )
T3FB
Indian Standard
CONVEYORS -SCRAPER(FLIGHT)-
GENERALREQUIREMENTS
( First Revision )
.
First Reprint JANUARY 1998
UDC 621.867~133

@ BIS 1994
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
November 1994. Price Group 5
suounitnoC kluB ,gniyevnoC ,gnitavelE ,gnitsioH laireA syawepoR and detaleR tnempiuqE
lanoitceS ,eettimmoC DMH 6
FOREWORD
sihT naidnI Standa dr ( tsriF noisiveR ) was detpoda yb eht uaeruB fo naidnI Standards, retfa eht
tfard dezilanif yb eht suounitnoC kluB ,gniyevnoC ,gnitavelE ,gnitsioH laireA syawepoR and
detaleR tnempiuqE lanoitceS eettimmoC had neeb devorppa yb eht yvaeH lacinahceM gnireenignE
noisiviD .licnuoC
sihT standard was tsrif dehsilbup ni 1977. nI this ,noisiver eht epocs fo eht standard has neeb
degralne ot revoc a egral ylimaf fo reparcs .sroyevnoc nI ,noitidda stnemeriuqer rof ,sniahc
stekcorps and sthgilf evah neeb .deifidom
roF eht esoprup fo gnidiced rehtehw a ralucitrap tnemeriuqer fo this standard is deilpmoc ,htiw
eht lanif ,eulav devresbo ro ,detaluclac gnisserpxe eht tluser fo a tset ro ,sisylana shall eb dednuor
ffo ni ecnadrocca htiw SI 2 : 1960 seluR‘ rof gnidnuor ffo laciremun seulav ( revised )‘. ehT
rebmun fo tnacifingis secalp deniater ni eht dednuor ffo eulav dluohs eb eht emas as that fo eht
deificeps eulav ni this standard.
IS 8646:1994
Indian Standard
CONVEYORS-SCRAPER(FLIGHT)-
GENERALREQUIREMENTS
( First Revision )
emos sesac eht htdiw fo eht hguort ) and ni
1 SCOPE
esac fo ralubut thgilf royevnoc ( htiw standard
sihT standard syal nwod eht stnemeriuqer
1.1 sebut ,) eht edistuo retemaid fo eht .ebut
rof reparcs sroyevnoc osla nwonk as thgilf
.sroyevnoc
4 EPYT AND EGASU
sihT standard osla srevoc eht -eriuqer
1.1.1
stnem rof reparcs sroyevnoc rof handling yrd 4.0 ehT epahs and thgieh fo sthgilf cra eht
baggasse. ,lapicnirp serutaef yb hcihw thgilf sroyevnoc
era dedivid otni ngised .sepyt esehT ,sepyt
1.1.2 sihT standard seod ton revoc eht -eriuqer
ni ,lareneg yam eb deifissalc as:
stnem rof elbatrop reparcs ( thgilf ) sroyevnoc
fo yna tros and is osla ton elbacilppa ot )a hgiH dilos thgilf ,sroyevoc
sroyevnoc ~handling lairetam hcihw era ,elttirb
,tsiom ykcits od~dna ton evaheb as a .dilos )b woL dilos thgilf ,sroyevnoc and
2 SECNEREFER )c ralubuT thgilf .sroyevnoc
ehT gniwollof naidnI Standards era yrassecen esehT sroyevnoc era desu rof gniyevnoc ,ytsud
stcnujda ot this standard: gas gnivlove ro toh sdoog .osla
SI No. Title 4.1 hgiH Solid Flight Conveyor
yrassolG fo sroyevnoc smret
4240 : 1984 this epyt fo ,royevnoc thgilf thgieh is ylhguor
and snoitinifed ( jirst revision ) lauqeIn ot eht htped fo eht hguort and erom
6U;( traP )1 : royevnoC ,niahc niahc sleehw than lareves semit eht thg~ieh fo eht links fo
and :stnemhcatta traP I eht hauling .niahc ehT hguort is nepo epyt
Chains detnuom no a troppus .erutcurts A yllacitrev
(;3R6 traP 2 ) : royevnoC ,niahc niahc sleehw desolc hauling niahc htiw sthgilf dehcatta ot ,ti
and :stnemhcatta traP 2 gnivom ni eht ,hguort is tneb dnuora eht
sleehwniahC lanimret .stekcorps ehT lairetam ot eb deyevnoc
is deruop otni -eht hguort at yna tniop gnola
12919 : 1990 royevnoC sniahc rof enac
its htgnel and dehsup yb eht thgilf gnola eht
sugar yrtsudni
.hguort gnidaolnU nac eb demrofrep at yna
12959 : 1991 lacinhceT ylppus stnemeriuqer tniop gnola eht hguort sgninepo hcihw era
rof tekcorps sleehw rof knil dedivorp ni its .mottob esehT sroyevnoc era
sniahc yllareneg fo ruof sepyt desu rof tnereffid
3 YGOLONIMRET gnitarepo .snoitidnoc
3.0 roF eht esoprup fo this standard, eht -ifed
4.1.1
Single Strand Conveyor Where Chain is
snoitin nevig ni SI 4240 : 1984 gnola htiw eht
gniwollof shall .ylppa Subported only by Scraper Plaies
nI eseht sepyt fo ,sroyevnoc niahc is detroppus
3.1 Length gnola eht kcart and lairetam is detropsnart ni
ehT htgnel fo eht royevnoc is eht latot htgnel mottob hguort .ylno gniruD ,noitcere a gap
morf eht sixa fo eht dne-daeh tekcorps ot eht is deniatniam neewteb hguort and thgilf os
sixa fo eht dne-liat tekcorps htiw all elbatsujda that raew fo thgilf is .detanimile esehT -noc
snoitces adjust~ed ot rieht tsetrohs htgnel sroyev era desu rof thgil ytud and trohs ertnec
derusaem gnola eht path fo eht .royevnoc .royevnoc esehT sroyevnoc era dengised rof
sliding yltcerid no a leets .hguort yehT era
3.2 hguorT Width
elbatius rof worran sthgilf gniyrrac eerf gniwolf
ehT lapicnirp citsiretcarahc fo a thgilf royevnoc lairetam htiw lumps ton regral than 100 mm ni
is eht htdiw fo sthgilf fo a thgilf niahc .( ro ni eno noitcerid ylno ( ees .giF 1 .)
1
IS 8646 : 1994
FEED
EED
FIG..~ SINGLE STRAND CO~JVEYOR WHFRE CHAIN .GIF 3 ELBUOD DNARTS CONVEYOR WITH PLAIN
OR ROLLER CHAIN SUSPENDED FLIGHTS
IS SUPPORTED ONLY BY SCRAPER PLATES
4.1.2 Single Strand Conveyor with Shoe Suspended 4.1.4 Double Strand Conveyor with Plain or Roller
Chain Suspended Double Depth Style Flights
High ts
esehT sroyevnoc are ralimis ot 41.3 except that
These sroyevnoc are desu for gnol secnatsid
yeht are dengised ot yrrac lairetam gniniatnoc
dna hgih .yticapac sihT epyt of royevnoc si
regnol spmul no htob reppu dna rewol .nur
desu where lareves feed dna egrahcsid stniop
detoviP epyt sthgilf htiw respect ot niahc at
are .deriuqer ehT sroyevngc yam evah sniahc
rehtie dne etatilicaf yna tnemngilasim dna
of rehtie rellor ngised or drag knil ngised ( see
mrofinu-non noitagnole of niahc sdnarts at
Fig. 2 ). rehtie dne of .thgilf tI yam eb desu for rediw
sroyevnoc ( see .giF 4 ).
FEED
TINC
EED

FIG.~ SINGLE STRAND CONVEYOR WITHSHOE
SUSPENDED FLIGHTS
4.1.3 Double Strand Conveyor with Plain or Roller ~.GIP DOUBLE STRAND CONVEYOR WITH PLAIN
Chain Suspended Flights OR ROLLER CHAIN SUSPENDED DOUBLE DEPTH
STYLE FLIGHTS
esehT sroyevnoc tsisnoc of leets sthgilf
attached ot elbuod sdnarts of sseltevir or rellor
epy% .niahc ehT uiahc operates no talf -awener 4.2 Low Solid Flight Conveyors
elb leets esab attached ot the .hguort esehT nI siht epyt of ,royevnoc the thgieh of wol
sroyevnoc are desu for egral seiticapac dna sthgilf si elbarusnemmoc htiw that of niahc
for regnol path naht the elgnis dnarts thgilf sknil dna si ylno a llams noitcarf of the depth
.sroyevnoc esehT are elbatius for ediw sthgilf of the .hguort sihT has desolc emarf whose
gniyrrac lairetam gniniatnoc regnol spmul pu ot mottob noitrop smrof a hguort for the .-evom
400 mm ni .ezis esehT are desu ot eldnah tnem of the .daol ehT gniluah niahc htiw
lairetam no the mottob nur ylno ( see .giF 3 ). sthgilf passes edisni the emarf dna dneb dnuora
1S 8646 : 1994
lanimret sprocket. ehT rewol nur of the latnoziroh noitcerid ui ralucitrap of hot goods
royevnoc sedils no the hguort mottob dna htiw serutarepmet pu ot .C‘@O7 ehT niahc desu
sevom the .daol ehT nruter nur sevom ni the are of laiceps sivelc epyt .niahc fI ,yrassecen
reppu noitrop of the emarf no ediug tracks, latnoziroh nrut yam osla eb dedivorp ni -noc
troppus rellor or a suounitnoc .roolf ehT daol royev tuoyal yb ylbatius gniyfidom the ngised
nac eb deruop at yna tniop of the latnoziroh of the niahc ( see .giF 5 ).
hguort dna si devom yb the niahc dna sthgilf ni
suounitnoc reyal whose thgieh ni latnoziroh 4.2.2 Conveyors with Double Chain with Flights
noitces exceed yllaitnatsbus two ot xis semit of Increased Height
gnidneped no the seitreporp of the .lairetam
esehT sroyevnoc are desu for rehgih seiticapac
dnuorgrednU laoc sroyevnoc ylediw deyolpme ni
dna regnol shtgnel ( see .giF 6 ).
seireilloc etaler ot the puorg of sroyevnoc htiw
wol ,sthgilf tub reffid yllaitnatsbus morf these
42.3 Conveyors with Single Chain Used in
.sroyevnoc
Inclined Condition
4.2.1 Conveyors with Single Chain in Horizontul esehT sroyevnoc are desu ot tropsnart lairetam
Condition ni senalp denilcni pu ot C°51 for gniyevnoc
esehT sroyevnoc are desu ot tropsnart -irevlup ,sniarg niarg stcudorp ni niarg srotavele dna
zed, ralunarg dna llams dezis ypmul lairetam ni niarg dna fodder sllim ( see .giF 7 ).
5
FIG. SINGLE CHAIN CONVEYOR IN HORIZONTAL CONDITION

FIG. 6 DOUBLE CHAIN CONVEYOR WITH FLIGHTS OF INCREASEDH EIGHT
3
IS 8646 : 1994
HGUORT‘ wmTH
.EF 7 SINGLE CHAIN CONVEYOR, DESU NI DENILCNI NOITIDNOC
,niahc royevnoc ,sdeb ,shguort take pu ,secived
4.3 Tubular Flight Conveyors
royevnoc sevird as niam stnenopmoc ot erusne
A ralubut thgilf royevnoc has a gniluah niahc elbailer dna tneiciffe noitarepo of a .royevnoc
htiw dnuor or ralugnatcer sthgilf denetsaf ot stI evitcart stnemele dluohs possess etairporppa
.ti ehT niahc sevom gnola a suounitnoc desolc so as ot dneb yleerf dnuora syellup or sprockets
ruotnoc edisni a citemreh ebut of a ralucric or of llams .sretemaid ehT noitcurtsnoc of the

ralugnatcer cross noitces so that the daol si tnereffid stnemele llahs eb as .swollof
devom ni the ebut ni a suounitnoc wolf (see
5.1 sthgilF
.giF 8 ).
5.1.1 ehT sthgilf of thgilf sroyevnoc evah
5 ‘CONSTRUCTIONAL FEATURES
,ladiozepart raiucricimes or ralugnatcer shape.
sroyevnoC htiw elbixelf evitcart stnemele evah delbuoD ralugnatcer sthgilf are desu ni -noc
,sthgilf gniluah ,niahc sprocket for gniluah sroyev htiw two gnikrow .snur sthgilF are edam
.orF 8 CITAMEHCS TNEMEGNARRA ROF RALUBUT THGILF CONVEYORS
4
SI 8646 : 499i
morf leets sheets, 3 ot 8 mm ,kciht htiw 5.1.2 roF wol dilos thgilf ,sroyevnoc the sthgilf
depmats sbir ot esaercni rieht .ytidigir citsalP are edam morf talf or deliforp leets .setalp nI
( nolyN ) ralucricimes sthgilf of a llams bir are elgnis niahc ,sroyevnoc the _thgilf are. del&z
osla desu ni thgilf .sroyevnoc sthgilF nwohs ni ot niahc sknil ylralucidneprep or at na elgna of
.giF 9, 10, 11 dna 12 are yllareneg desu ni hgih 85” evitaler ot the lanidutignol .sixa nI elbuod
dilos thgilf .sroyevnoc niahc ,sroyevnoc yeht are denetsaf ot niahc
A
M cl
- ............
.......... ........................... ............................... ..................................... ..... ............................... .................................................. ............. . . . .-. .... .-. .-. B t
STYLE A STYLE Bl
htgneL 1300 1300 1375 1 450 1 375 ) 450)
A
,leetS
nialP
htdiW B j loo j 150 ( 150 ; 150 /*oo 1200 1200
leetS htiw htgneL A 1 300 / 300 j 375 / 450 ( 375 1 450
gnidilS Shoe
htdiW B / 100 1 150 j 150 ) 150 1 200 j 200
,
___-.._- _~ _I-_L I
All dimensions in millimetres.
FIG. 9 DIMENSIONSO F FLIGHTSO F STYLE A AND lB

STYLE 82
htgneL ,4 300 300 375
htdiW B
llA snoisnemid ni .sertemillim
.GIF 10 SNOISNEMID FO FLIGHTSO F STYLE B2
5