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RoLL cRUsx-IER FOR sIMuLTANEoUs CRUSHING l oF LARGE AND SMALL PIECES oF MATERIAL Filed Nov. 9. 1955 i M M l slm l il l mag m y 44. En.
ROLL CRUSHER FOR SIMULTANEOUS39CRUSHIN G OF LARGEAND SMALL PIECESOF MATERIAL Harold39 c. Puliitz, Edward, o. Spangler4 and Npmllan Kessler, Cedar ,Rapids, Iowa, s39sig39ndrs nto Iowa39 Manufacturing Companyv oi-l Cedarv Rapids, v low Cedar Rapids, Iowa, ncbi-poration of Iowa A ApplicationNovember 9, 15955,.Serialsllo.v 15,918.
V1 Claim. lCl. 241-235 The present inventon. relatesto rollf-.type apparatus for crushing rockor othersimilar frangible. material .and.
. is, more particularly,v concerned. withthen-provision of a novel andsubstantiallyimproyed crushingroll. coniiguration.
As those skilled in, theartgof roele1 crushing fare aware, frangble material fed finto A.the hopperuona crusher is non-uniform both as to size andhardness In view of this fact it is very diicult to obtain thoroughcrushing action in a single Crusher pass. This istrue since the pair of rolls forming thevcrusherpassmust be adjusted toy pro- 39j vide an improved .crushingroll construction.
Vide a predetermined roll clearance or passageway and39 that passageway is, necessarily,A otv a dimension smaller than some of thematerial to be crushed39pand larger than other particles thereof.Accordingly, inxoperation of the usual crushing apparatus .many particles ofsmall size are handled by-thecrushingapparatus39but not-ma-f terially aifected by it and where continued, smaller, crushing is desired, or Vwhere controlledwgradation is desired subsequent passesthrough rolls, having .smaller clearance are necessary.
It is, accordingly, an object of the present invention to provide a novel and substantially improved crushing apparatus.
Another object of the present invention is to provide an improved roll surface configuration for rock crushers or the like whereby large and small pieces of frangible ice material are simultaneously crushed foreontrolled gradation.
A feature ofthe invention residesintheuse of a pair .of rolls each having at leastone circumeferential, radial- -ly projecting, rib forllalignmentuwith a .corresponding rib on39the other .drum .to provide aminmunr small crushins passageway ankedfby a pair bfi-larger Crushing passageways. v.
Yet a further feature of the inventionlis .the provision tof a pair of generally39eylindricalcrushing rolls at. least one of which is a circumferential,.radially projecting,.
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Double Roll Crusher Manufacturers In Gurkul Faridabad. Products in faridabad, from abhishek enterprises abhishek enterprises abhishek enterprises is in the services of people around the country, manufacturing high quality stone crushing plants and equipment and its spares to the entire satisfaction of its clientse manufactures jaw crusher primary crusher, granulator secondary crusher, smooth.
Toothed double roller crushers for sticky china clay kaolin. Double Roll Crushers McLanahan double roller crushers for sticky china clay kaolin,Australia 183 China 183 Russia McLanahan Double Roll Crushers provide a 41 reduction ratio and are typically used as secondary or Since each machine is custom engineered, roll elements and tooth patterns are selected Roll Crushers, but are.
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Compact but powerful, ultra-productive with excellent crushing performance, highly energy efficient and well balanced.
These are attributes featured in promotional literature describing the new eccentric roll crusher ERC from thyssenkrupp Industrial Solutions.
The supplier says the ERC redefines the concept of primary crushing hard rock. As such, it is suited not only for use in underground operations but also in open pit mines and quarries, where its qualities are particularly useful in semi- or fully mobile operations.
For decades, gyratory and jaw crushers have proved their worth in crushing hard rock. However, their application is limited by their high headroom, requiring capital-intensive construction of large-scale, costly caverns when used in underground operations.
Moreover, in open pit operations they are only partially suitable for mobile use because of design-related residual imbalance-induced forces.
Although low-headroom crushers such as double roll crushers and sizers have become established as primary crushers in the industry, design constraints mean they are not considered capable of efficiently and economically processing hard rock.
The new ERC, with its patented design of pre-screening and crushing features, combines a compact design and the ability to crush hard rock with high throughputs in an energy-efficient manner.
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