US1441027A - Clinker grinder - Google Patents

Description

R. S. RILEY.

CLINKER GRINDER.

Jail. 2, 192s.

FILED `JUNE 5 1920.

3 SHEETS SHEET 2.

R S RILEY CLINKER GRINDER.

FILED JUNE 5.1920` Jan. 2, 1923.

l. Il P L E E J NN E R. S. RILEY.

CLINKER GRINDER.

Jan. 2, 1923.

3 SHEETS-SHEET 3.

FILED JUNE 5,1920.

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ROBERT SANFORD RLEY,`OE` 'i/VRCESTER, lVJfiSSAGl-USETTS, ASSGNOR TO'SNFORD To all 'whom t may concern.'

Be it known that l,- `Roemer S. RILEY, a citizen of the United States, residing at llorcester, in the county or Ti/Yorcester and State of Massachusetts, have invented a new and useful @linker Grinder,v of which the following is a specification.

This invention relates to furnace construction and more particularly to an improved clinker grinder and parts associated therewith. f

As'furnace operation becomes increasingly automatic, it becomes desirable to make provision for breaking up the clinkers and fuel refuse so that the same may be handled by a conveyor or other mechanical means. A heavy grinding roll, termed a clinker grinder, has been used for this purpose, and it is one object of my present invention to improve the construction ot such rolls, making them more eiiicient in operation and more economical to inanufacture.

Another objectof my invention is to provide a removable and renewable wear plate adapted to be secured to the rear wall of the furnace adjacent the clinlrer grinder, thus rendering frequent renewal or the wall unnecessary.

My invention further relates to arrangements and combinations of parts hereinalter described and more particularly pointed out vin the appended claims.

The preferred toi-n1 of my invention shown in the jlrawings, in which--- .il 1 is a sectional side elevation olf a portion ot a furnace ol the under-Literal type een bodying my invention;

Fig. 2 is an enlarged transverse sectional elevation of the c linker grinder:

Fig. 3 is a plan view of a portion oic the clinker grinder. looking in the direction of the arrow 3 in Fig. 2;

Figs. l and 5 are longitudinal sectional views of the clinker grinder, taken along the lines l-Ll and 5 5 in Fig. 2;

Fig. 6 is a front elevation of portion of the clinker grinder7 showing one of the bearings in section;

Fig. 7 is a transverse sectional elevation of a clinlrer grinder embodying a modified construction; and

'Fg'. S is a detail plan View, looking in the direction of the arrow 8 in lfig'. T.

assi/renner e GRNDER.

1920. Serial No. 386,846.

Referring to the drawings, l have shown a portion of a furnace comprising a rear wall 10, a portion oit an underfeed retort 1 1, and a refuse discharge plate l2. The plate 12 is pivoted at i3 to the rear end ont the retort section 11 and is supported at its ylower end by a roll 1a' mounted at the end of a rack bar 15 which may be manually adjusted to position the discharge plate 12 at any desired distance from the clinker grinder 16.

The discharge plate and the portion ot the retort to which it is attached are commonly reciprocated by driving mechanism not shown.

are preferably disposed in the angular relation indicated' in Fig. 2. rllhe plates 18 are recessed so that the nuts 21 on the bolts 19 are substantially below the outer surface of the plates.

Each plate is provided with openings enlarged at their inner ends and adapted to receive grinding teeth 22 having heads 23 aty their inner ends.

ln assen'ibling the clinker grinder, teeth are inserted in the openings Vtroni concave .side ol" the plate and the heads are received in the enlarged inner ends or" the openings. The plates are then clamped in pairs about vthe tube 17 and the grinding teeth are thus held firmly in position between the plates and the tube. `When the teeth become worn or broken the plates are easily removed and the teeth may be quickly replaced at small expense.

l prefer to make the plates 18 in short sections, such as are shown in 3, using as many sections as necessary to build up a roll of the desiredV length. Suitable bearings 2li (Figs. 1 and 6) areprovided at such the th e points as are necessary to nrmly support the grinder.

'The hollow construction ot the clinker nder is desirable for several reasons as it permits the circulation of' air or water CGRORATON 0F MASSA- provided the wear' plate 25` shownf in g. 1. This plate is preferably inadeinrelatively short sections and is provided with lugs or projections 26 at its rear side adaptedto engage hooks or similar Mfastening devices-27 iixedl in the wall l0.

At its lower end, each plate 25 is formed to engage the Alower Vportion of an'V I-beain 28 which supports the rea-r ends ot the bearings 24J. lThe plates 25 may' be `secured to the beam 28 in any convenient manner as by bolts 293 loosely dropped into suitable openingsin the plate and in the flange oli` the beam.

n Figs; 7 and 8 have indicated a slight modification in which thev rods '30 are pro?- vided with transverse openings 3l at` each end through which keys 32' may be driven.-

to hold the casingl plates in position. The keys should? be inserted.` as shown ini. Fig. "7 so that the actionof the grinder against the material upon which. it' operates will tend tio-'seat the keys more firmly in the openings' 31. The thin-endet eachke'y may beslotted andthe ends separated as shown in Fig. 8 for additional security.

Having thus described my invention and'.

a modification thereof, it will bev evident that other changes/and.modifications can be madetherein within the spirit. and scope ot:

' myl inventionasy setlifoith in the claims, and 'I do not wish to be otherwise limited to the details herein disclosed, but Awhat l claim 1. A clinker grinder comprising av hollow cylindrical tube,l a plurality: oi' sectional cas-y y ing` plates dispose'dabout said tube and pro; vided" with grinding teeth, and fastening rods eachy extending directly through the `wall of said tube at two yseparated points and` through each of a pair of plates and securing said plates to 4said tube.

2. A @linker grinder comprising a hollow cylindrical tube, a plurality of sectional casing plates disposed about saidltube .and pro. l

vided. with grinding teeth, and, means'uto secure said plates to 'said tube,.sai'd means comprising fastening rods each Vextending substantially diametrically throughopenings inj said plates and through the wall ot said tube at two separated points. 3. A clinker grinder-comprising' a hollow' cylindrical tube, semi-cylindrical. casing plates disposed inv pairs about said tube andi provided with grinding: teeth, and means to secure said plates Ito said:y tube, said meanscomprising bolts each extending subst-an'- tially diametrically through` openings in y said`r plates and in opposedr walljportion'siof said tubes.

4;. A. clinker grinder comprisingai hollow cylindrical tube, sectionalv casing plates dise4 posed about said tube and providedl with grindingteeth, fastening. nods: each; extend-- ing: dianietrically through said plates and through the opposed wall portionsof saidV tube at separated points along thel axiscf said tube, and holding devices for saidy rods 5. A clinler grinder comprising .a hollowf cylindrical tube, sectional casing 'plates'.dis

posed about said tube andi provided vwith grinding teeth, fastening. rods each extiending through. said plates and throughgsepas` rate wall portions of said tube-,anch holding vdevices clr said rods,.the'rod's holding each pair of plates extending substantially along diameters of said tube and at a substantial3 angle to each other. s i i' '6. A. clinker grinder comprising aT hollowK cylindrical tube,` sectional casing plates disposed'v about said tube.. andr .provided with grinding: teeth, and .means topsecure saidv plates to said tube, vsaid means comprisingI` rods each extending' through said-[platesaiid through separate wall portionsot said tube,. and keys disposed transversely in said-rods outside saidplates. n

ln testimony whereof I have hereunto aiiXed my signature; ROBERT SANFORE RILEY.

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