WO1992017646A1

WO1992017646A1 - A sifting machine for railway ballast

Info

Publication number: WO1992017646A1
Application number: PCT/IT1992/000033
Authority: WO
Inventors: Claudio Morara; Claudio Menzani
Original assignee: 2C-2M Di Morara Claudio E Menzani Claudio S.N.C.
Priority date: 1991-03-29
Filing date: 1992-03-20
Publication date: 1992-10-15
Also published as: IT1248221B; AU1537892A; ITBO910101A1; ITBO910101A0

Abstract

The sifting machine envisages, interplaced between the more internal end (4a) of a chain excavating group (4) and a first conveyor belt (7): a vibrating wall (14) for the pre-selection of part of the material (6) excavated, defined by a plurality of beams (15) parallel among themselves and arranged below the end (4a) of the chain excavation group (4) and tilted at an angle (α) with respect to the longitudinal development of the car (C) so as to permit of the downflow of the remaining part of the excavated material (6); a hopper (16) for receiving the pre-selected components of the said material (6), arranged below the said vibrating wall (14) and comb means (19) for cleaning arranged below the said vibrating wall (14) and acting on all the surface defined by the beams (15) in such a way as to keep the selecting surface of the said vibrating wall (14) continually clean.

Description

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OtZ — i-igure d sh ws, i plan '-lew fro above, and with some parts reitovsd better to evidenc others, a a "11 cu .a ^~ z>'^~ ti c x ~ f . g*j>^~e 1 ,', r igura 3 sho , ir a schematic side- -^• ] ew i_^itr some pants '"efri'-' eα oetter to e^ι_ idence others, a

] c pre-selection chamber equipped with combing means foi Cleaning s>">Q means for redulat on o the tilt angle?

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< *1 between two e^ι treme positions, one raised and non— ■^■ pera 1 P ' illustrated b\ a br l-en line in ^^"lαure

_ : "t3'"ι' 5l ■- o t t r a 11 ■ r a r , gr; re x -, _^,j >^■= ,- 1= H d operative, belo_» tht said na■ iωs. ca* and the s iα rsil ra t s 5, so as to excavate

10 -Fi r, the __> a i last ϋ<2C th>_. mater al < t be s_"fted, at the o re internaj end -+a of the chain e ca-'atind group -■ , i effect where rie moto ^_ l sed ι ;^, n -* 0 i J o c a t e d a irst >c o n v e '-' c> r belt t ; s e "''■ i aoed t rt^"iev-'- l . ided ta^" ] inii mater i - ÷- 1 " e ^~ s '" _ _ _ - a 't ; ._. e ' "t d>—r*^_''= . s o _. a n d -_^ a a t--

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Below the '-ihrating -Jail i-÷ a second hopper it, for the receiving of the pre-selected earthv component? is placed, equipped at its bo!"tor. 1.-.a with a pair o second channels i^~' for the unio→diig o÷ the said ore- elected components, Th? nonn r 1 ,-_-_. is con titut d by a container e; hibitinn in 1" - -rms v sa section an upturned sp ' ^,-e conf r-Tia 11on so as t'_> p rn-lit rf the drawing down ox the pre—selected 'components towards the bottom lόa o'" rat ^p,- on to second unloading channels i^1-* which connect with corresponding third coix-eyo'" belts iB? these thing conveyor belts 38 develop p^i'si lei arid bi latera iv i;r the said firs on t-O" Pel '•" ^"? and lead to the said irst

1 .'a d J n ι_ : .aι in i _.:^" .-•" the _, f -t-oi- fc- 5,;

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i ai; the cnai " 'd atinc αroup -* is brought into action_^ which chain e cavatmd group -+ is lowered from the trans'- '^~sa . dimension nx^" the railway c:ar C and is po s 113 onee belo the t cadi- 3 , witereupor it begins to e^wcavatε, thanl* ? to ^, t__ shovels -J-1 - the material 6 defining the ballast of the railwa-- r-ac. ,

The e c va ted aterial t, i D^rouQhl u^r> o th ι<. upper end -+=•> o^" the cnai. t. group *→ ano then tail- downwards in a continual f:QW . neetinp at the bottom the vibra ing w il i-+_ the s id vibra ing wa i 3 ] -+ suPdi- : de- the he - -.w ,-,f m t r ιa. mti.

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• t x tne P a s IP c r x i i it ^" e a C n e r- he t 11- a h C D D e^,_ ^E an frrir t h er^•= the X 3 'st cons e o^,_ Pe J t i'-h i ci" t aK es tr> _ he* i n Mdt 1-n. ^, 111 ε^• f r - |5e j anc u c cess 3 ve redepo s 111 nc st" i '."-us ble ma t ." i - tne seco no n t, . :ompose- a ,τιn a t e• j .^, , f ea i" T^*h passes th^rou d tn t i f'^ S nc deposi eo inside tne second h ppe' 1 _. shape siibdivides ne earthy material into wo further flows which flows lead on to correspond! ng thir.p o veyor belts lb, wruch belts 18 transport" the arth towards the sifter 8, o rather unload the said earth inside the said first unloading channels IE. From tter^ the earth falls on to the secor;' cr nvevor Pelts 1?, whic evacuate the saic a th u ts 3 ce the z. ^' po ter i r ] o the ctive L""a->cr ox the chair group _*• --.

f'-ta tu C311 > , the selection of the gravel flow happens regularly and is not minimally influenced p the unload inn o es^~th-^r ma l t lal into th.^*? irst

C n→ : i ? 1 p ". c..

C

Thi Ξ,. th n>* s tu a sι^~tιng machine thus stri c cur d ~> ^{*~ ~} poss- bie to align it- real and t 1 pe -f r 3n.-e wt th the ÷heoreticai capacif- of the s:fteι - b■ actmn upst' ear o^~ the sitter itselt _-' 1 h Ξ r - se 1 ec L i o h r> f t h ea r t n ma t e >~ i a 3 ω i c n f?, i ιap w;»uid 1 i '"" t the axor sa-'! re. pe t ,- ITI a n c e _

>■- :_ " " er eon = eoue> _'.r ■" "*^" this imp ^~c --emerit is that a no t a.b 1 red c t ion

<_5

Claims

t .-•. L-i -aims i_ A sifting machine for railway track ballast,, corn-prising. on a base structure being a railway cε-t equipped with wheels mobile on tracks ? a link chain xcav ing group supported internall to the v. •said railway car s which chain group's inferior br nch, developing ransvers l ly to he id c r 5 is mobile between at least two extreme posit ions 5 one of the said two extreme positions being raised a.nd non--opera.t i v i ntern .11 y o he r il wa.■ car - ι . ;. and one o the sajp two extreme positions being lowered and oper tive. bel w the said r il ay csr anc the said rail tracks _ so as to excavate from the ballast bed the material to be sifted; at the more- intern l end of the ch in excava ing group., a fi t conveyor b lt being envisaged to rec ive the guided fa.-, ling material and unload it from above towards/on a. sif er c n titut d by a series o si es arranged at different heights rom each other and supported by a support .ructur equipped with v ibra. c in elements so as i n m I f! 'I' 'TJ ,-t ,-t !_, ci rt B U! rt 3 3 r.IB 1 ri P rr I'l 3 1 3 P rr rr P __._- r rr Cl 'lι IB JJ ,~- IB IB rt rt Hi •B rt. α XJ IB rtIJI ,-t 3 IB UJ "1 IB 'Jl XJ IB IB ITI lit i ' IJ! l IJI in U! "1 "i IB O 'U ζ rt !_. ,;, 3 rt Hi IB -I, J τι Cl !-_ rt Q IB ε V Σ. H ,-_ fti ,rt c •rt <T α, Hi -+. ,-t '. tii •~ι IB 'B rt QJ σ ,-f,-t rr IB IB Cl "1 rt c P —" ~ι ;r •T. Ul ITl IB •A 1 +1 IB IB p •• 3 Ull Cl ill Q • 3 Ul P rt Ul _' σ IB P rt "I 'll Cl IT. iB -*i in IB IB Ul 3 1 1 n 111 IB rr P rt IJ! ci n -; rt iB rr XI IJI 'V LL --- * \ ,-_ IB li rt rt, 01 t XI . - n σ O c .-+. o ——HI li .rt IJ' .rt n (B Id fti n rtl -; O III,-t Cl rt iB Ul r. rt *_- n ci α 3 li rr IU ~ι 13 l"l tu rt P •J c n -+, r I*-* rt* . IB * .' rr IB lϊ ~i rt ~ rr P 1 Ci rt π P C 3 iB I III UJ ,-t d IB IB IB IB IB n"i Ull 1 1 p rr IB IJI 1 I _r 1 3 έ IB III Qι rt rr *^ Cl IB Ul . t ,-t Cl XJ'Jl 9 rt Hi '!' III 1, rr rt XI rr σ P ι;,, 'J' T ,rt rt ,~* III o rt 3 rt 111 ' ' IT' σ ... X! fj '-- ,-t -*., P P O ~, IB I3 'J' P IB . " H' IB IB d Q p Ull in .. . U'l I—• -, -, , I n *-_ id n iii rt ,rt n r, " ,-*- ,-+ Ct P lϊl -- UP Ul IJ! uii p Ul! Σ I, 1 1 . IB T lCl Q rr "1 rt ,-t 'JJ .. ' - I !_" <-t n o-< 0 Σ ' 3 σ .rt- Ul P σ rr |C J P t c ,-t Hi 3 -rt ._, 3 Cl III Ull c fl' XJ Ull0 rr ■rt . <. <• o 1"! ,rt U! ,-f. ci III 1 I 1 J Cl ι-_ Ξi .-I ~! 3

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receiving of the pr -s l cted earthy components: - combing means for cleaning arranged more or less below the said vibrating wall and acting on all of the surface defined by the beams so as to keen the select ino surface of the said vibrating wall cont inuou.s1y fre .

2, A sifting machine for rail ay track ballast-, comprising, on a. base structure being a. railway- car equipped with wheels mobile on tracks ₅ a. link chain excavating group supported internally to the said railway <za.r , which chain group's inferior br .ncr> , d ve1oping ra.nsvεrsa.11 y to he^'sa.id ca.r - is mobile between a.t least two extreme positions,. one o'^*~ the sai o treme o i ions being raised an non-onerat ive internal is- to the railwa.v C3. , and one of the said two extreme positions being lowered and operative, below the said r il ay ^,z3. a.nc the sai rail tr cks, so s to cavate from the ballast bed the material to be sifted! a.t the ore i ntern-a..^•: end of the cha. i n exca.va.t i ng grou. π ,. a. first conveyor b l being envisag d to r c ive he ouided f ing ma er ia.] a.nci unload it from above towards/on a. ifter cons i uted b•- a series of sieves a -a.nd c a oiTTer nc h ights Trom eacr rυ

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—a second hopper below the vibrating wall for the receiving of the pre-selected earthy components ₅ equipped a.t its bottom with a.t least a. pair of

<>D ^■second channels for the unloading of the said preselected components so as to transport them on corresp nding third conveyor b Its 5 the s id third donveyor belts des-elopiπq parallel and bilaterally to the said first conveyor belt and leading to the

10 said first unloading 'Channels of the sifter so a to permit of evacuating external ly the pre^¬ ss1 cted components ξ

-- combing means for cleaning arranged more or less be 1 o .-. th a. i d v i bra.t i ng a.11 and ac t i ng on a.11 of the surf ce de ined by the beams so as to keep the selecting surface of the sai vibrating wall cont i nuous 1 v free.

3. A machine as in claim i or £, characterised by the fact that the sa.id pre—selec in vibrating wall exhi i s a. support cradle end pi v t d direc ly on the r ilway car while the opposite cradle end is connec ed o r gulating means o permit of variation of the tilting ancle o the saic viorarmo w il to allow fo^r the :har ac r i 5t ics of the material to be selected

<■+ - A machine as in claims i or ci . wherein the preselecting vibrating wall is constituted by a

... support cradle, constrained to the railway car ang to which the said beams 3^,~Gz SO- ιd_ the sa LO cradle being blisters 11-- equipped with motor ised vibrating eana. isolated from the rest c f the railwav csr to avoid by means of vibra ion the

10 accumulation ot material on the said beams.

5_ A machine as in claim d , wherein the said hopper is constituted b - a containe- e^% hibiting ir transversal section s^," cusp conf rm tion so as to p^pi'iT . o the d raw i n c, co > p ^~ t e i■;■ pra— selected components to a ds th πopper bottom- or the¹.- on to second in ι iAd inc. channels which connect with corresponding said third convevo- belts-

__:<

c _ f- hine as in ciains ^" D^^~ , wherei ^~ the said in me. means a> ■instituted b¹- a co t d fin d a π 1 ,_ι r H j j ' > - n x i ± 3 - -• e - r l r a 1 D_r; . id P -_ ;. , t e r n^_ j. _ * sρa;es beti-ee¹ rn; beams. ϊuppori connec ed to and moved, in both directions, by a flow-dyna ic piston placed lateral L-- to the vibrating w ll and constrained to a wall of the said railway car to permit of 05 cleaning the said vibrating wall.

^""' . A machine as in claims 3 or Ξ. characte i ed P'> the fact that the said cleaning means re constituted b y a comb defined by a plurality of i sub≡tant la 11-- --ertical bars, siideable internal !-^■ to the spaces between the said beams, all of which ba a are solid to a single horiz n al support con sc t ed to and o e , in Do h d i rec t I ons . b a -^"low-d na ic istcn l-^cec laterally to the ii -ιb-atιng w?xl and constrained to a wai] of the sai'_ railway rg^■ tι_ permit of cl aning the said •■ 3 brat lto .-ιa j j ; said ho -3 nonia ι support being eguipper". with end—run eanr arranged ii pru¹ i itv td toe end of the *- ibrgti no wall and acting ot' the

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