CA2023003C - Machine and segment for compacting and/or crushing bulk material - Google Patents
Machine and segment for compacting and/or crushing bulk materialInfo
- Publication number
- CA2023003C CA2023003C CA002023003A CA2023003A CA2023003C CA 2023003 C CA2023003 C CA 2023003C CA 002023003 A CA002023003 A CA 002023003A CA 2023003 A CA2023003 A CA 2023003A CA 2023003 C CA2023003 C CA 2023003C
- Authority
- CA
- Canada
- Prior art keywords
- segment
- roller
- lug
- recess
- segments
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000013590 bulk material Substances 0.000 title claims abstract description 6
- 239000000463 material Substances 0.000 claims description 7
- 230000004323 axial length Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 230000000295 complement effect Effects 0.000 abstract 1
- ODPOAESBSUKMHD-UHFFFAOYSA-L 6,7-dihydrodipyrido[1,2-b:1',2'-e]pyrazine-5,8-diium;dibromide Chemical compound [Br-].[Br-].C1=CC=[N+]2CC[N+]3=CC=CC=C3C2=C1 ODPOAESBSUKMHD-UHFFFAOYSA-L 0.000 description 1
- 239000005630 Diquat Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 101150044179 scgn gene Proteins 0.000 description 1
- CEWNUSPMSSUSJA-AATRIKPKSA-N ustin Chemical compound O1C(=O)C2=C(C)C(Cl)=C(O)C(Cl)=C2OC2=C(Cl)C(C(/C)=C/C)=C(O)C(C)=C21 CEWNUSPMSSUSJA-AATRIKPKSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/16—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using pocketed rollers, e.g. two co-operating pocketed rollers
- B30B11/165—Roll constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Machine Tool Units (AREA)
- Press Drives And Press Lines (AREA)
- Manufacturing And Processing Devices For Dough (AREA)
Abstract
Abstract The invention relates to a machine for compacting and/or crushing bulk material, in which two rollers which can be pressed together at high pressure each consist of a main roller body and a roller shell which is releasable conn-ected to the main roller body and is composed of individual segments. Each of the individual segments has one single lug projecting in the circumferential direction on the front long side in the direction of rotation of the roller and one single complementary recess on the rear long side in the direction of rotation of the roller. The generatrices of the outer surfaces of the segments point in the circumferential direction and run radially with respect to the roller axis. This results in a simple construction of the segments and a high degree of security against tilting.
Description
20~30~3 Machi~e and segment for ¢ompa¢t ~ and/or ~rushing bulk material The invention relates to a machine for compacting and/or crushing bulk material.
A machine for hot briquetting and a segment therefore are known from an article by Bergendahl, Hans-Georg:
"Walzenpressen fur die Brikettierung von heiBem Eisenschwamm" in the offprint of Fachberichte Huttenpraxis Vol. 10/81. Two rollers which can be pressed against one another at high pressure comprise a main roller body and a roller shell which is releasably connected to the main roller body and is composed of individual segments, and the individual segments each have one single projecting lug on the front long side in the direction of rotation and one single recess on the rear long side in the direction of rotation.
In this known construction the outer faces of the projecting lugs and recesses of the seg~ents which point in the circumferential direction run to some extent at an angle to the plane thought the roller axis. As a result, at a given pressure between two rollers the maximum specific surface pressure between the segment and the main roller body is reduced. Surface pressures which are too high lead to deformations of the surface of the main roller body and cause tilting of these segments.
Fu~thermore, the product~on of these known segments, and in particular the machining of the individual segment surfaces, is relatively costly.
' The object of the present invention, therefore, is to simplify the construction of the segment whilst at the same time guaranteeing security against tilting.
VLS:in d ~."~
?
2a230~3 ..~ .
This object is achieved in the present invention with a material crushing roller for applying compressive force on bulk material and comprising a plurality of like, rigid segments in encircling relation about a roller body rotatable about an axis, each segment having between its leading and trailing ends an outer arcuate material engaging surface spanning the width of' such segment, each segment having at its least end a surface beyond which a single lug projects circumferentially in the direction of rotation, each of the lugs being of less width than that of such segment and having an outer surface extending in arcuate prolongation of and the level of the material engaging surface, a leading end surface and a pair of parallel sides, each segment having at its trailing end a surface having one recess therein, the recess having spaced sides and a base surface and being of such width as snugly to accommodate the lug of the adjacent segment, the lug and recess of each ~;
segment being symmetrical with respect to the central plane of such segment extending at right angles to the axis of rotation of the roller body, each segment being characterized in that each of the surfaces of the leading ~' and trailing ends thereof, the leading end surface of the lug, and the base surface of the recess extend radially with ~-respect to the axis,the outer surface of each of the segments and the outer surface of each of the lugs having the same radius from the axis.
.. ~ :;'', .., -In comparison with the known construction described above, ~ -the solution according to the invention - whilst offering almost the~same security against tilting - is distinguished by substantially simpler manufacture, since the individual segments are produced as simple castings and all segment surfaces can be machined in a simple manner. ;~
Further features of the invention are explained in greater detail in connection with the following description of some embodiments which are illustrated in the drawings.
- VLS:in -2a- 2023003 In the drawings:
Figure 1 shows an exploded view of a roller.
VLS:in . - 3 - 2~,3~3 1 Flxure 2 show~ a part-sectlon~l representation oP the roller along the line II-II ln ~Figure 3, Fi~ure 3 shows a slde ~iew ~ the rollor, :~
Figures 4 to 8 show to vlew~ o~ the developm~nt oi' dii'~erent embodlment~ of the segments. :~
The roller lllustrated in Flguro 1 comprlse~ ~ maln roller body 3 arranged on a ~ha~ 2 as well a~ a roller :~ shell which i~ releasably connected to the main roller body 3 ~nd composed of lndlvidual e~ments 4. Two cl amp~
ing elements 5 which engAge:laterally on the segment~ are ~ provided in each ca~e ~or flxing thç indlvidual ~exments : 15 4 on the maln roller body 3. u~ ~i :~ The be~rlng sur~aces o~ the main roller body 3 and the :; .
~egments 4 are constructed as cylindrlcal surfaces. '~
Each o~ the indlvldual scgn~nts 4 ha~ one ~lngle lu~ ~a ~:
proJecting ln t~e cireum~erential dlrect:lon on the ~ront long ~ide in the direction of rotatlon and one ~ingle~
compl:ementary recess 4b on the; re~r lon~ ~ide in the direction o~ rotation o~ thc roller 1, the lug:4a and the reces~ ~b bein8~ arranged symmetrically with respoct to ~, : the~central plane 4c oY the se~ment 4 running ~t ri ght angles to the roller axi~ la ~in this connection cf. al~o : Ylgures ~ to 8).~ ~
:: : 30 In the clrcumferential directlon the l~di~ldual segments `-4 have the part-surfaces 4r and 4~ on the slde o~ the lug 4a and the part-sur~ace~ 4h and 41 on the side o~ the , ~ .
:: ~ `
A machine for hot briquetting and a segment therefore are known from an article by Bergendahl, Hans-Georg:
"Walzenpressen fur die Brikettierung von heiBem Eisenschwamm" in the offprint of Fachberichte Huttenpraxis Vol. 10/81. Two rollers which can be pressed against one another at high pressure comprise a main roller body and a roller shell which is releasably connected to the main roller body and is composed of individual segments, and the individual segments each have one single projecting lug on the front long side in the direction of rotation and one single recess on the rear long side in the direction of rotation.
In this known construction the outer faces of the projecting lugs and recesses of the seg~ents which point in the circumferential direction run to some extent at an angle to the plane thought the roller axis. As a result, at a given pressure between two rollers the maximum specific surface pressure between the segment and the main roller body is reduced. Surface pressures which are too high lead to deformations of the surface of the main roller body and cause tilting of these segments.
Fu~thermore, the product~on of these known segments, and in particular the machining of the individual segment surfaces, is relatively costly.
' The object of the present invention, therefore, is to simplify the construction of the segment whilst at the same time guaranteeing security against tilting.
VLS:in d ~."~
?
2a230~3 ..~ .
This object is achieved in the present invention with a material crushing roller for applying compressive force on bulk material and comprising a plurality of like, rigid segments in encircling relation about a roller body rotatable about an axis, each segment having between its leading and trailing ends an outer arcuate material engaging surface spanning the width of' such segment, each segment having at its least end a surface beyond which a single lug projects circumferentially in the direction of rotation, each of the lugs being of less width than that of such segment and having an outer surface extending in arcuate prolongation of and the level of the material engaging surface, a leading end surface and a pair of parallel sides, each segment having at its trailing end a surface having one recess therein, the recess having spaced sides and a base surface and being of such width as snugly to accommodate the lug of the adjacent segment, the lug and recess of each ~;
segment being symmetrical with respect to the central plane of such segment extending at right angles to the axis of rotation of the roller body, each segment being characterized in that each of the surfaces of the leading ~' and trailing ends thereof, the leading end surface of the lug, and the base surface of the recess extend radially with ~-respect to the axis,the outer surface of each of the segments and the outer surface of each of the lugs having the same radius from the axis.
.. ~ :;'', .., -In comparison with the known construction described above, ~ -the solution according to the invention - whilst offering almost the~same security against tilting - is distinguished by substantially simpler manufacture, since the individual segments are produced as simple castings and all segment surfaces can be machined in a simple manner. ;~
Further features of the invention are explained in greater detail in connection with the following description of some embodiments which are illustrated in the drawings.
- VLS:in -2a- 2023003 In the drawings:
Figure 1 shows an exploded view of a roller.
VLS:in . - 3 - 2~,3~3 1 Flxure 2 show~ a part-sectlon~l representation oP the roller along the line II-II ln ~Figure 3, Fi~ure 3 shows a slde ~iew ~ the rollor, :~
Figures 4 to 8 show to vlew~ o~ the developm~nt oi' dii'~erent embodlment~ of the segments. :~
The roller lllustrated in Flguro 1 comprlse~ ~ maln roller body 3 arranged on a ~ha~ 2 as well a~ a roller :~ shell which i~ releasably connected to the main roller body 3 ~nd composed of lndlvidual e~ments 4. Two cl amp~
ing elements 5 which engAge:laterally on the segment~ are ~ provided in each ca~e ~or flxing thç indlvidual ~exments : 15 4 on the maln roller body 3. u~ ~i :~ The be~rlng sur~aces o~ the main roller body 3 and the :; .
~egments 4 are constructed as cylindrlcal surfaces. '~
Each o~ the indlvldual scgn~nts 4 ha~ one ~lngle lu~ ~a ~:
proJecting ln t~e cireum~erential dlrect:lon on the ~ront long ~ide in the direction of rotatlon and one ~ingle~
compl:ementary recess 4b on the; re~r lon~ ~ide in the direction o~ rotation o~ thc roller 1, the lug:4a and the reces~ ~b bein8~ arranged symmetrically with respoct to ~, : the~central plane 4c oY the se~ment 4 running ~t ri ght angles to the roller axi~ la ~in this connection cf. al~o : Ylgures ~ to 8).~ ~
:: : 30 In the clrcumferential directlon the l~di~ldual segments `-4 have the part-surfaces 4r and 4~ on the slde o~ the lug 4a and the part-sur~ace~ 4h and 41 on the side o~ the , ~ .
:: ~ `
- 2~3~
~ 1 reces~ 4b. The g~neratrice~ of the outer ~uriaces o~ t~e segment~ polnt in the circum~erentlal direction and are ~ormed from the part-~urf~ces ~f ~nd 4~ ~ well a9 4h and nd r~n r~dlally with respect to the roller axls tQ.
Between ~d~acent ~e~ment~ 4 o~ the roller shell there can be a cl earance o~ up to approximately lO m~, pre~erably a - clearance o~ the order o~ magnltude o~ the caqtlng toler-~oce, for example 2 to 5 mm.
A~ can al~o be seen in Figures 2 and S, the ~e~ments 4 ~nd the main roller body 3 are e~ch provlded wlth later-ally pro~ecting luæs 4d and 3a re~pectively. U-~haped clampln~ element~ which cn~age in the axial directlon on : 15 both ~ldes on the l~g~ 4d and 3a are braced together by means of ti~htenlng ~crews ~. The tightenln~ screw~ 6 Are received in axl~lly extending groove~ Sb of the main roller body 3. In this way all ~e~ments 4 ~re ~astened ~o the maiD roller body 3 ln each c~se by two clamping elements 5. However, other ~lxin~ me~ns are also possible withln the ~cope o~ the lnventlon, ~or example, shrlnk rin8~, ad~u~ting springs, r~dially arran~ed screw~
or sprlng cl lp8 tensioned wlth bolt.~
;; 25 Ad~u~ting ~pring~ are provided ~or addition fi~lng of the :;; segment~ 4 in the direc~tion o~ rotatlon. In order to recelve the ad~u~ting ~prln$~ 7, two groove~ 3c are pro-: vided per segment 4 adJacent to the two end ~ace~ o~ the main roller hody 3. The length o~ the grooves 3c corre~ponds approximately to the length o~ the reglons of - the long Ylde of the ~egment 4 laterally ad.loinlng the :
2~3~
- 1 lug 4a. The ad~uYtin~ sprinxs 7 ~et into the gTooves 3chave ~urface~ 7a inclined in t~he direction o~ rotatiou of the roller l. The ed~e ln the reglon latcrally ad~acont to the lug 4a and the be~rlng ~urf~e of thc ~egmont 4 on the m~in roller body 3 ha~ ~ correspondlng lncllnatlon.
In the normal operatlon o~ the machine the ~egment~ 4 are held on the ~n~in roller body 3 by the clampin~ elements 5. In the event of oxtreme load~ relative movemc~ts between the segments 4 and the maln roller body 3, ~o that the segment~ attempt to twl~t on the maln roller body ~inst the direction o~ travel of the roller.
These reIative movements are prevented by the ~dJu~ting ~prinB~ 7. The segments are supported on the radial 1 y ~ :
extendlng sur~aces of the adJustln$ sprin~s 7. The chamferiDg of the ad~usting sprlng~ <sur~ce 7a> is carried out Por re~sons Or space, and the cham~ered ~urPaces are al ways unstressed.
In the drawln~ ~Figure 3~ a gap ~ oi' approximately 2 mm can b~ ~een b0tween the ~eg~e~t ~ and the ad~acent ~-~
ad~usting ~prin~ 7. This gap ~ should compens~te tor settlement~ in the clamp c~nnection. Thu~ In the eve~t of extreme load~ the segment makes ~ relQtive movement of 2 nun with reQpect to the main roller body 3 and: the ~dJacent ~d~ustin~ ~pring ~nd then comes to re~t on the ad~u~ting ~pring~ which prevents any ~urther rot~ry movement. ~-~
- ::
The lu~ 4a and the reces~ 4b of the ~e~ment illustrated in Figure 4 have ~ rect~n ~lar outer contour ~hen vlew~d ~ ;~
2~3~
- 1 ln the radlal dlrectlon. The reces-~ 4b ls de~ined by two lateral pro~ectlons ~e when vlew~d ln the ~xial direc-tlon. The axial length Or the lug 4a a~d the recess 4b ln the region of the root of t~e lug or the mouth o~ the rece~s ~orrespond~ approxi~ately to hal~ tho axlal length L o~ the segment 4. For the two lateral reglons - viewed in the axlal directlon - o~ the lug 4~ and rece~s 4b there remains ln each ca~e a quarter of the axi~l length L of the ~egment 4. The depth of the lug 4a and the recess 4b measured in the circun~erentlal directlon corresponds to an an~le in a se~ment x Or 3 to 15, preferably ~i to IO-. The depth of t~e lux~ me~sured in the circum~erential directio~ advanta8eously corre~ponds approxlmately to the arc measure Or the region betw~en the rollers in whlch the grlnding pre~sure act~.
The durabillty o~ ~e~mented rollers ls influenced declslvely by the ~ur~ace pressure betw~en the ~egment~
and main roller body 3. ~Wobblin~ of the se~ments~. The di~trlbutlon of the ~urface pressure in the bearlng sur-~ace between the ~egment~ ~ and the main roller body 3 Is influenced by the non-u~i~orm pre~sure distribution in ; the 8~P between two rollers 1 in the direction o~ the roller axis la ~nd by the orle~tatlon of the resulting grlndlng pressure with r~spect to the qe~ment 4. By means o~ the orientation of the resulting ~orce with re~pect to the segment 4 the maxim~m surface pre~sures ~nd the maxlmum tlltin8 moment occur on the side of the segment runnlng out of the gap, and the pressure ln the ~ap above the axial length of the ~egment in the central region is ~reater than in the edge reglons.
,.~
,-j _ 7 _ 2~3~
1 In the con~truction of the ~egments ~ccording to th~ ln- ~-ventio~ the dl~ferent pres~ure stresse~ ~nd the dlfferln~
tilting ~o~ent~ on the ~ldes of the Yegme~t running into and out of the &ap are t~ken into aocount by the ~hapin~
and arrang~ment of the ~egm~nt~ 4 on the main roller body ~
~ 1 reces~ 4b. The g~neratrice~ of the outer ~uriaces o~ t~e segment~ polnt in the circum~erentlal direction and are ~ormed from the part-~urf~ces ~f ~nd 4~ ~ well a9 4h and nd r~n r~dlally with respect to the roller axls tQ.
Between ~d~acent ~e~ment~ 4 o~ the roller shell there can be a cl earance o~ up to approximately lO m~, pre~erably a - clearance o~ the order o~ magnltude o~ the caqtlng toler-~oce, for example 2 to 5 mm.
A~ can al~o be seen in Figures 2 and S, the ~e~ments 4 ~nd the main roller body 3 are e~ch provlded wlth later-ally pro~ecting luæs 4d and 3a re~pectively. U-~haped clampln~ element~ which cn~age in the axial directlon on : 15 both ~ldes on the l~g~ 4d and 3a are braced together by means of ti~htenlng ~crews ~. The tightenln~ screw~ 6 Are received in axl~lly extending groove~ Sb of the main roller body 3. In this way all ~e~ments 4 ~re ~astened ~o the maiD roller body 3 ln each c~se by two clamping elements 5. However, other ~lxin~ me~ns are also possible withln the ~cope o~ the lnventlon, ~or example, shrlnk rin8~, ad~u~ting springs, r~dially arran~ed screw~
or sprlng cl lp8 tensioned wlth bolt.~
;; 25 Ad~u~ting ~pring~ are provided ~or addition fi~lng of the :;; segment~ 4 in the direc~tion o~ rotatlon. In order to recelve the ad~u~ting ~prln$~ 7, two groove~ 3c are pro-: vided per segment 4 adJacent to the two end ~ace~ o~ the main roller hody 3. The length o~ the grooves 3c corre~ponds approximately to the length o~ the reglons of - the long Ylde of the ~egment 4 laterally ad.loinlng the :
2~3~
- 1 lug 4a. The ad~uYtin~ sprinxs 7 ~et into the gTooves 3chave ~urface~ 7a inclined in t~he direction o~ rotatiou of the roller l. The ed~e ln the reglon latcrally ad~acont to the lug 4a and the be~rlng ~urf~e of thc ~egmont 4 on the m~in roller body 3 ha~ ~ correspondlng lncllnatlon.
In the normal operatlon o~ the machine the ~egment~ 4 are held on the ~n~in roller body 3 by the clampin~ elements 5. In the event of oxtreme load~ relative movemc~ts between the segments 4 and the maln roller body 3, ~o that the segment~ attempt to twl~t on the maln roller body ~inst the direction o~ travel of the roller.
These reIative movements are prevented by the ~dJu~ting ~prinB~ 7. The segments are supported on the radial 1 y ~ :
extendlng sur~aces of the adJustln$ sprin~s 7. The chamferiDg of the ad~usting sprlng~ <sur~ce 7a> is carried out Por re~sons Or space, and the cham~ered ~urPaces are al ways unstressed.
In the drawln~ ~Figure 3~ a gap ~ oi' approximately 2 mm can b~ ~een b0tween the ~eg~e~t ~ and the ad~acent ~-~
ad~usting ~prin~ 7. This gap ~ should compens~te tor settlement~ in the clamp c~nnection. Thu~ In the eve~t of extreme load~ the segment makes ~ relQtive movement of 2 nun with reQpect to the main roller body 3 and: the ~dJacent ~d~ustin~ ~pring ~nd then comes to re~t on the ad~u~ting ~pring~ which prevents any ~urther rot~ry movement. ~-~
- ::
The lu~ 4a and the reces~ 4b of the ~e~ment illustrated in Figure 4 have ~ rect~n ~lar outer contour ~hen vlew~d ~ ;~
2~3~
- 1 ln the radlal dlrectlon. The reces-~ 4b ls de~ined by two lateral pro~ectlons ~e when vlew~d ln the ~xial direc-tlon. The axial length Or the lug 4a a~d the recess 4b ln the region of the root of t~e lug or the mouth o~ the rece~s ~orrespond~ approxi~ately to hal~ tho axlal length L o~ the segment 4. For the two lateral reglons - viewed in the axlal directlon - o~ the lug 4~ and rece~s 4b there remains ln each ca~e a quarter of the axi~l length L of the ~egment 4. The depth of the lug 4a and the recess 4b measured in the circun~erentlal directlon corresponds to an an~le in a se~ment x Or 3 to 15, preferably ~i to IO-. The depth of t~e lux~ me~sured in the circum~erential directio~ advanta8eously corre~ponds approxlmately to the arc measure Or the region betw~en the rollers in whlch the grlnding pre~sure act~.
The durabillty o~ ~e~mented rollers ls influenced declslvely by the ~ur~ace pressure betw~en the ~egment~
and main roller body 3. ~Wobblin~ of the se~ments~. The di~trlbutlon of the ~urface pressure in the bearlng sur-~ace between the ~egment~ ~ and the main roller body 3 Is influenced by the non-u~i~orm pre~sure distribution in ; the 8~P between two rollers 1 in the direction o~ the roller axis la ~nd by the orle~tatlon of the resulting grlndlng pressure with r~spect to the qe~ment 4. By means o~ the orientation of the resulting ~orce with re~pect to the segment 4 the maxim~m surface pre~sures ~nd the maxlmum tlltin8 moment occur on the side of the segment runnlng out of the gap, and the pressure ln the ~ap above the axial length of the ~egment in the central region is ~reater than in the edge reglons.
,.~
,-j _ 7 _ 2~3~
1 In the con~truction of the ~egments ~ccording to th~ ln- ~-ventio~ the dl~ferent pres~ure stresse~ ~nd the dlfferln~
tilting ~o~ent~ on the ~ldes of the Yegme~t running into and out of the &ap are t~ken into aocount by the ~hapin~
and arrang~ment of the ~egm~nt~ 4 on the main roller body ~
3. :
'~
The ~e~ment~ 4 are arranged ln the direction o~ rotatlon (arrow 8> on the ~aln roller body 3 in ~uch -R way that :~
flrst o~ all the slde o~ the segment wlth the pro~ectln~ ::
lug 4a run~ into the gap ~ormed by two rollers 1.
`~ The mo~t highly stres~ed p~rt o~ the segment 4 in the . region oi the reces~ 4b ~approximately 65% of the total ~-force) runs out of the gap a~ the ~Irst part o~ the rear long side oi' the segment. In this ca~e the lateral pro-Jections 4O act as ~upports and thu~ prevent unacceptably high ~urface pressures ~9 wel l as wobbl ing o~ the segment~. Th~ ~ubsequent runnin$ out o~ the pro~ections , .~3~ -i 20 4e l~ not ~YU.U~e~l because o~ the lower pre~sure ~tre~
(approximately S5-/. of the total force~. The pressure ~tres~ o~ the inco~ing slde o~ the sexn~nt Ci.e. the ront long ~ide~ when vlewed in the direction of rotatloD
: o~ the roller> 1~ substantiaIly lower and there~ore not critical because o~ the dlrection in which the xrlnd~n~
force ~ct~. :
: ~
In the ~urther embodiments accordlng to Fi~ures 5 to 8 the s~me reference numeral~ are ~sed ~or the same parts ~8 in Figure 4. In the embodlment accordin~ to Fl~ure S
~' ~ 8 - 2~:~3~
¦ 1 the lug 4a and the recess 4b o~ the ~egm~nt 4 are con-~tructed with ~ clrcular outer o~ontour.
In the embodlment according to Figure ~ the lu~ ~a and the rece3~ 4b have a trapezi~orm outer contour.
The segment~ lllustrated ln Figure~ 7 and 8 have an outer contour which conslst~ o~ A circular central part and strai~ht partY adJoinln~ it on both ~ldes. The straight part~ then mer~e with rounded edge~ into the tw~ lateral par~xial ,regions. The lug 4a or the recess 4b o~ the ~egment ll}ustrated ln FiRure 8 are o~ somewhat narrower constructlon by comparison with tho embodiment according to Figure 7. Otherwise the dimensions ~ccordin~ to Fig-ure 4 also apply to the embodlmsnts accordln~ to Figure~5 to 8.
The roller ~hell which ls composed of relea~able indi-vidual ~exn~e~ts makes it possible i'or one or all segments to be replaced iY required. For thls purpo~e it 1Y
merely noces~ary to remove the corre~pondlng clamping eloments.
, ~ '.';., '"'~
- ' ,'. , ~,'"~`:,.
. ` ~
"' :'.' :: :: :::
,., ,, .,,;
'~
The ~e~ment~ 4 are arranged ln the direction o~ rotatlon (arrow 8> on the ~aln roller body 3 in ~uch -R way that :~
flrst o~ all the slde o~ the segment wlth the pro~ectln~ ::
lug 4a run~ into the gap ~ormed by two rollers 1.
`~ The mo~t highly stres~ed p~rt o~ the segment 4 in the . region oi the reces~ 4b ~approximately 65% of the total ~-force) runs out of the gap a~ the ~Irst part o~ the rear long side oi' the segment. In this ca~e the lateral pro-Jections 4O act as ~upports and thu~ prevent unacceptably high ~urface pressures ~9 wel l as wobbl ing o~ the segment~. Th~ ~ubsequent runnin$ out o~ the pro~ections , .~3~ -i 20 4e l~ not ~YU.U~e~l because o~ the lower pre~sure ~tre~
(approximately S5-/. of the total force~. The pressure ~tres~ o~ the inco~ing slde o~ the sexn~nt Ci.e. the ront long ~ide~ when vlewed in the direction of rotatloD
: o~ the roller> 1~ substantiaIly lower and there~ore not critical because o~ the dlrection in which the xrlnd~n~
force ~ct~. :
: ~
In the ~urther embodiments accordlng to Fi~ures 5 to 8 the s~me reference numeral~ are ~sed ~or the same parts ~8 in Figure 4. In the embodlment accordin~ to Fl~ure S
~' ~ 8 - 2~:~3~
¦ 1 the lug 4a and the recess 4b o~ the ~egm~nt 4 are con-~tructed with ~ clrcular outer o~ontour.
In the embodlment according to Figure ~ the lu~ ~a and the rece3~ 4b have a trapezi~orm outer contour.
The segment~ lllustrated ln Figure~ 7 and 8 have an outer contour which conslst~ o~ A circular central part and strai~ht partY adJoinln~ it on both ~ldes. The straight part~ then mer~e with rounded edge~ into the tw~ lateral par~xial ,regions. The lug 4a or the recess 4b o~ the ~egment ll}ustrated ln FiRure 8 are o~ somewhat narrower constructlon by comparison with tho embodiment according to Figure 7. Otherwise the dimensions ~ccordin~ to Fig-ure 4 also apply to the embodlmsnts accordln~ to Figure~5 to 8.
The roller ~hell which ls composed of relea~able indi-vidual ~exn~e~ts makes it possible i'or one or all segments to be replaced iY required. For thls purpo~e it 1Y
merely noces~ary to remove the corre~pondlng clamping eloments.
, ~ '.';., '"'~
- ' ,'. , ~,'"~`:,.
. ` ~
"' :'.' :: :: :::
,., ,, .,,;
Claims (11)
1. A material crushing roller for applying compressive force on bulk material and comprising a plurality of like, rigid segments in encircling relation about a roller body rotatable about an axis, each segment having between its leading and trailing ends an outer arcuate material engaging surface spanning the width of such segment, each segment having at its leading end a surface beyond which a single lug projects circumferentially in the direction of rotation, each of said lugs being of less width than that of such segment and having an outer surface extending in arcuate prolongation of and at the level of the material engaging surface, a leading end surface and a pair of parallel sides, each segment having at its trailing end a surface having one recess therein, said recess having spaced sides and a base surface and being of such width as snugly to accommodate the lug of the adjacent segment, the lug and recess of each segment being symmetrical with respect to the central plane of such segment extending at right angles to the axis of rotation of said roller body, each segment being characterized in that each of the surfaces of the leading and trailing ends thereof, the leading end surface of said lug, and the base surface of said recess extend radially with respect to said axis, the outer surface of each of said segments and the outer surface of each of said lugs having the same radius from said axis.
2. A roller according to claim 1, wherein each lug and each recess have a rectangular outer contour when viewed in the radial direction.
3. A roller according to claim 1, wherein each lug and each recess have a circular outer contour when viewed in the radial direction.
4. A roller according to claim 1, wherein each lug and each recess have a trapeziform outer contour that converges in the direction of rotation when viewed in the radial direction.
5. A roller according to claim 1, wherein each lug and each recess when viewed in the radial direction have an outer contour which consists of a circular central part and straight parts adjoining on both sides.
6. A roller according to claim 1, wherein the leading end of each lug and the base surface of each recess have a length corresponding substantially to half the axial length of the associated segment.
7. A roller according to claim 1, wherein the circumferential length of each lug and the circumferential depth of each recess subtends an angle of 3 to 15° relative to the roller axis.
8. A roller according to claim 1 including adjusting springs accommodated in grooves in said roller body for fixing the segments, there being two grooves for each segment adjacent to two end faces of the roller body, such grooves each extending over substantially one quarter of the axial length of the roller body and being located at a contact point of two adjacent segments.
9. A roller according to claim 8, wherein a gap is provided between adjacent segments and the adjusting springs to compensate for relative movement between the segments and the roller body.
10. A roller according to claim 1 including clamping elements for fixing the individual segments on the roller body, said clamping elements engaging the segments on two sides wholly inwardly of the outer arcuate material engaging surface, said clamping elements bracing each segment relative to the roller body by means of axial tightening screws accommodated in grooves of the roller body.
11. A roller according to claim 1, wherein the circumferential depth of each lug corresponds approximately to the length of the region of the roller on which the compressive force acts.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3927884.0 | 1989-08-23 | ||
| DE3927884A DE3927884A1 (en) | 1989-08-23 | 1989-08-23 | MACHINE FOR COMPACTING AND / OR CRUSHING PROPERTY GOODS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2023003A1 CA2023003A1 (en) | 1991-02-24 |
| CA2023003C true CA2023003C (en) | 1994-10-25 |
Family
ID=6387724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002023003A Expired - Fee Related CA2023003C (en) | 1989-08-23 | 1990-08-09 | Machine and segment for compacting and/or crushing bulk material |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0418550B1 (en) |
| AU (1) | AU619416B2 (en) |
| BR (1) | BR9004168A (en) |
| CA (1) | CA2023003C (en) |
| DE (2) | DE3927884A1 (en) |
| ES (1) | ES2045687T3 (en) |
| FI (1) | FI94319C (en) |
| NO (1) | NO178218C (en) |
| ZA (1) | ZA906241B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2676659B1 (en) * | 1991-05-21 | 1995-12-01 | Rene Crine | ROLLER PRESS, REMOVABLE SHIELDS AND MOUNTING METHOD THEREOF. |
| DE4400797A1 (en) * | 1994-01-13 | 1995-07-20 | Krupp Polysius Ag | Grinding tool for roller mill |
| DE4424440A1 (en) * | 1994-07-12 | 1996-01-18 | Kloeckner Humboldt Deutz Ag | Roller for high=pressure roller mill for granular material |
| DE19606671A1 (en) * | 1996-02-22 | 1997-08-28 | Krupp Polysius Ag | Device for shredding and compacting loose material |
| DE19614999A1 (en) * | 1996-04-16 | 1997-10-23 | Krupp Polysius Ag | Mill roller |
| DE19709263A1 (en) * | 1997-03-06 | 1998-09-10 | Krupp Polysius Ag | Roller for grinding mill |
| DE19736087A1 (en) * | 1997-08-20 | 1999-02-25 | Kloeckner Humboldt Wedag | Roller for a high-pressure roller press, in particular for comminuting granular material |
| DE102007032261A1 (en) | 2007-07-11 | 2009-01-15 | Khd Humboldt Wedag Gmbh | Roller for high-pressure press e.g. for comminuting granular materials, has roller wall forming outer region composed of discrete segments fixed on main body |
| DE102013103884B3 (en) * | 2013-04-17 | 2014-08-07 | Maschinenfabrik Köppern GmbH & Co KG | press roll |
| DE102013103880B3 (en) * | 2013-04-17 | 2014-08-07 | Maschinenfabrik Köppern GmbH & Co KG | press roll |
| DE102021114404B4 (en) * | 2021-06-03 | 2024-07-04 | Takraf Gmbh | Segment roller, especially for crushing or compacting bulk material |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1604744A (en) * | 1926-01-12 | 1926-10-26 | Carl W Finger | Crushing roll |
| DE960953C (en) * | 1952-10-18 | 1957-03-28 | Aulmann & Beckschulte | Crushing roller with multi-part crushing rings |
| DE1247922B (en) * | 1958-04-24 | 1967-08-17 | Kloeckner Humboldt Deutz Ag | Roller briquette press |
| DE1300049B (en) * | 1960-06-14 | 1969-07-24 | Komarek Greaves And Company | Briquetting roller for a roller briquetting press |
| DE1815599C3 (en) * | 1968-12-19 | 1980-04-24 | Kloeckner-Humboldt-Deutz Ag, 5000 Koeln | Roller mill or roller briquette press |
| USRE28581E (en) * | 1970-11-10 | 1975-10-28 | Roller-type press | |
| DE2229811A1 (en) * | 1972-06-19 | 1974-01-17 | Kloeckner Humboldt Deutz Ag | ROLLING MILL |
| JPS5267078A (en) * | 1975-12-02 | 1977-06-03 | Kawasaki Heavy Ind Ltd | Roll core for roll press |
| DE2649801C3 (en) * | 1976-10-29 | 1980-08-07 | Bepex Gmbh, 7105 Leingarten | Segment roller for a briquetting or compacting roller press |
| US4097215A (en) * | 1977-05-12 | 1978-06-27 | K. R. Komarek, Inc. | Segmented briquetting roll |
| DE3017962C2 (en) * | 1980-05-10 | 1982-04-22 | Maschinenfabrik Köppern GmbH & Co KG, 4320 Hattingen | Roller press for compacting and briquetting bulk materials |
-
1989
- 1989-08-23 DE DE3927884A patent/DE3927884A1/en not_active Withdrawn
-
1990
- 1990-08-08 ZA ZA906241A patent/ZA906241B/en unknown
- 1990-08-09 CA CA002023003A patent/CA2023003C/en not_active Expired - Fee Related
- 1990-08-14 ES ES90115545T patent/ES2045687T3/en not_active Expired - Lifetime
- 1990-08-14 AU AU61036/90A patent/AU619416B2/en not_active Ceased
- 1990-08-14 EP EP90115545A patent/EP0418550B1/en not_active Expired - Lifetime
- 1990-08-14 DE DE90115545T patent/DE59003076D1/en not_active Expired - Fee Related
- 1990-08-22 NO NO903695A patent/NO178218C/en unknown
- 1990-08-23 FI FI904177A patent/FI94319C/en not_active IP Right Cessation
- 1990-08-23 BR BR909004168A patent/BR9004168A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ES2045687T3 (en) | 1994-01-16 |
| AU6103690A (en) | 1991-06-06 |
| DE59003076D1 (en) | 1993-11-18 |
| NO178218C (en) | 1996-02-14 |
| FI94319C (en) | 1995-08-25 |
| DE3927884A1 (en) | 1991-02-28 |
| EP0418550A1 (en) | 1991-03-27 |
| BR9004168A (en) | 1991-09-03 |
| AU619416B2 (en) | 1992-01-23 |
| NO903695L (en) | 1991-02-25 |
| NO903695D0 (en) | 1990-08-22 |
| CA2023003A1 (en) | 1991-02-24 |
| ZA906241B (en) | 1991-06-26 |
| EP0418550B1 (en) | 1993-10-13 |
| NO178218B (en) | 1995-11-06 |
| FI94319B (en) | 1995-05-15 |
| FI904177A0 (en) | 1990-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2023003C (en) | Machine and segment for compacting and/or crushing bulk material | |
| US5253816A (en) | Material crushing roller construction | |
| US4519551A (en) | Replaceable protective caps for spider arms of a reversible hammer mill | |
| US7510135B2 (en) | Grinding roll | |
| US5188303A (en) | Apparatus for protecting disks of a hammer-crusher rotor with a protective shield | |
| CA2144123A1 (en) | Pulverizing and grinding hammer | |
| ES364737A1 (en) | Rotary impact crusher | |
| US2958903A (en) | Briquetting roller press | |
| KR890015783A (en) | Hammer mills for closing materials such as ores | |
| GB1431618A (en) | Tube mill | |
| US5638887A (en) | Tumbling unit having cylindrical liner | |
| SE9302092D0 (en) | target element | |
| CA1084021A (en) | Impact-crusher rotors and beater bar therefor | |
| JP4585726B2 (en) | Support for rotating teeth in crushers | |
| EP0246775A2 (en) | Mineral breaker | |
| US3830612A (en) | Segmented briquetting roll structure | |
| US4730791A (en) | Arrangement of the working gap of a crushing machine having a horizontally disposed hammer crusher rotor | |
| CA2233693A1 (en) | Replaceable shear edge for a star-type feeder | |
| SU948439A1 (en) | Ball mill lining | |
| US5393000A (en) | Crusher with an annular roller track | |
| SU1757741A1 (en) | Crusher | |
| FI105656B (en) | Crusher rotor gear | |
| JP2525310B2 (en) | Crusher tooth plate | |
| SU1005891A1 (en) | Jaw crusher | |
| CA2589323A1 (en) | Replaceable shear edge for a star-type feeder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |