CA1101816A - Device for crushing sinter and the like - Google Patents
Device for crushing sinter and the likeInfo
- Publication number
- CA1101816A CA1101816A CA282,520A CA282520A CA1101816A CA 1101816 A CA1101816 A CA 1101816A CA 282520 A CA282520 A CA 282520A CA 1101816 A CA1101816 A CA 1101816A
- Authority
- CA
- Canada
- Prior art keywords
- discs
- crushing
- sinter material
- sinter
- crusher
- 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
Links
Classifications
-
- 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
- B02C4/10—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
Abstract
Abstract of the Disclosure A device for crushing sinter and other material of like consistency is disclosed wherein the flow sinter material is deployed against an impact table which directs the sinter material downward onto a series of vertically disposed discs fixed to a common means of rotation. The common means of rotation intersects each disc through its central axis. Adjacent to the discs and parallel to the common means of rotation is positioned a shaft upon which are mounted crusher means arranged to intersect and pass between the discs.
As sinter is directed downward onto the discs, the crusher means rotates and forces the sinter between the discs, thus crushing it. Heat buildup in the discs is controlled by a means of cooling which impinges on the discs.
As sinter is directed downward onto the discs, the crusher means rotates and forces the sinter between the discs, thus crushing it. Heat buildup in the discs is controlled by a means of cooling which impinges on the discs.
Description
This invention relates to the manufacture of sinter and, more par~
ticularly, to the crushing of sinter to size it for fur~her use.
Commonly, in the manufacture of sinter~ the sinter material, after it is composed, is crushed to a more or less uniform size. To perform this operation a crushing device is required. The crushing device usually comprises a grate o beams mounted horizontally (sometimes sloped). The beams are parallel and spaced apart. Crushing arms are arranged to move interspaced between the beams such that sinter material deployed upon the grate is forced between the beams and, thus, crushed to a more or less uniform size. -Such an arrangement of the beams and crushing arms causes a high degree of localized stress to be exerted on the beams resulting in fatigue and consequential breakage of the beams. This problem is augmented by the heat inherent in the sinter material as it is deployed onto the grate from sintering furnaces.
Since the crushing action is localized on the grate to a particular portion of the beams, a high degree of wear rapidly develops on the beams.~ -The result of these two problem areas is a need for frequent replace~
ment of the beams wi.th attendant downtime of the crushing device and signifi-cant replacement costs. There is a need for a crushing device which can overcome these downtime and replacement cost factors by increasing the life of the grate.
In accordance with the present invention an lmproved grate is formed of discs mounted to a common horizontal axle, in a spaced-apart manner with the horizontal axle intersecting each disc and forming a central axis therethrough. The discs can be of different symmetrical forms. Using circular forms, the discs would rotate under the influence of the sinter material moved by the crusher arms, the rotation being in a direction opposite to the movement of the crusher arms. The discs could, alternately, be driven by the crusher arm drive means or could have independent disc rotation drive means.
., 1 '' : , As a result of the rotation of the discs~ the wear is spread evenIy over the complete periphery of the disc, Further~ the heat is equalized throu~hout the disc. Finally, due to the rotation of the discl stress points are spread over the antire disc and not concentrated upon a given point, as in the prior art designs. As a result, the discs have a longer life span than the beams used in the prior art.
Since the discs are rotated, a cooling fluid, for example, water, may be impinged on the areas of the disc not in service at a given moment, without contacting the sinter material being crushed. Thus, the life of the discs may be further extended.
An alternate embodiment of the crushing device would use discs of -symmetrical polygonal shapes, including flat peripheral sides. Each side would be indexed in relation to the crushing motion of the crushing arms~ In ~ ~
this embodiment all of the discs' peripheral flats must be parallel; the discs ~ -would be keyed to the common horizontal axle and the shaft itself would ro-tate ~ corollary alternate to this embodiment is to maintain the parallel peripheral flats in a fixed position until wear appears, followed by a partial rotation of the common horizontal shaft to bring a new set of flats into work-ing relationship with the crusher arms.
Finally, a sloping lmpact table can be provided adjacent to the discs. In such an embodiment as the sinter material is deployed into the crushing device and where it is contacted by the crusher arms, the initial impact stress is absorbed by the table, thus eliminating the localized stress inherent in the prior art device.
.' :
Specifically, the present invention provides a device for crushing sinter material and the like and which has a horizontal shaft rotatably mounted; a plurality of crusher arms spaced apart and fixed to the horizontal shaft; means for rotating the horizontal shaft; a horizontal axle rotatably mounted and positioned parallel to the horizontal shaft; and a plurality of discs, disposed parallel to each other and spaced apart, fixed to~said ~, :
ticularly, to the crushing of sinter to size it for fur~her use.
Commonly, in the manufacture of sinter~ the sinter material, after it is composed, is crushed to a more or less uniform size. To perform this operation a crushing device is required. The crushing device usually comprises a grate o beams mounted horizontally (sometimes sloped). The beams are parallel and spaced apart. Crushing arms are arranged to move interspaced between the beams such that sinter material deployed upon the grate is forced between the beams and, thus, crushed to a more or less uniform size. -Such an arrangement of the beams and crushing arms causes a high degree of localized stress to be exerted on the beams resulting in fatigue and consequential breakage of the beams. This problem is augmented by the heat inherent in the sinter material as it is deployed onto the grate from sintering furnaces.
Since the crushing action is localized on the grate to a particular portion of the beams, a high degree of wear rapidly develops on the beams.~ -The result of these two problem areas is a need for frequent replace~
ment of the beams wi.th attendant downtime of the crushing device and signifi-cant replacement costs. There is a need for a crushing device which can overcome these downtime and replacement cost factors by increasing the life of the grate.
In accordance with the present invention an lmproved grate is formed of discs mounted to a common horizontal axle, in a spaced-apart manner with the horizontal axle intersecting each disc and forming a central axis therethrough. The discs can be of different symmetrical forms. Using circular forms, the discs would rotate under the influence of the sinter material moved by the crusher arms, the rotation being in a direction opposite to the movement of the crusher arms. The discs could, alternately, be driven by the crusher arm drive means or could have independent disc rotation drive means.
., 1 '' : , As a result of the rotation of the discs~ the wear is spread evenIy over the complete periphery of the disc, Further~ the heat is equalized throu~hout the disc. Finally, due to the rotation of the discl stress points are spread over the antire disc and not concentrated upon a given point, as in the prior art designs. As a result, the discs have a longer life span than the beams used in the prior art.
Since the discs are rotated, a cooling fluid, for example, water, may be impinged on the areas of the disc not in service at a given moment, without contacting the sinter material being crushed. Thus, the life of the discs may be further extended.
An alternate embodiment of the crushing device would use discs of -symmetrical polygonal shapes, including flat peripheral sides. Each side would be indexed in relation to the crushing motion of the crushing arms~ In ~ ~
this embodiment all of the discs' peripheral flats must be parallel; the discs ~ -would be keyed to the common horizontal axle and the shaft itself would ro-tate ~ corollary alternate to this embodiment is to maintain the parallel peripheral flats in a fixed position until wear appears, followed by a partial rotation of the common horizontal shaft to bring a new set of flats into work-ing relationship with the crusher arms.
Finally, a sloping lmpact table can be provided adjacent to the discs. In such an embodiment as the sinter material is deployed into the crushing device and where it is contacted by the crusher arms, the initial impact stress is absorbed by the table, thus eliminating the localized stress inherent in the prior art device.
.' :
Specifically, the present invention provides a device for crushing sinter material and the like and which has a horizontal shaft rotatably mounted; a plurality of crusher arms spaced apart and fixed to the horizontal shaft; means for rotating the horizontal shaft; a horizontal axle rotatably mounted and positioned parallel to the horizontal shaft; and a plurality of discs, disposed parallel to each other and spaced apart, fixed to~said ~, :
- 2 - ~
. . :: : ~
' ~
110~8~6 ~ ~
horizontal axle, the horizontal axle intersecting the discs through their central axis the discs being positioned~ in relation to the crusher arms~ to allow the arms to move spaced apart between the disas~
These and other features of this inventlon will be found more completely disclosed below with reference to a preferre!d embodiment of the ~ -present invention.
Fig. 1 is a side view of the preferred embodiment of~the crushing device, as provided with circular discs, in schematic form.
.:
Fig. 2 shows a partial top view of the preferred embodiment of the crushing device, as provided with circular discs, in schematic form.
Fig. 3 is a slde view of an alternate embodiment~of the crushlng device, as provided with polygonal discs, in schematic form.
Fig. 1 and Fig. 2 show an impact table 1 positioned to slope in re~
lation to the vertical deployment of sinter material. The impact shock of the ~ -falling sinter material is absorbed by the impact table 1.
The crusher means is posltioned at~the lower edge~of~the impact table~l and aomprises a horlzontal shaft~2,~posltioned parallel~to the~lower ~; edge of;the impact table 1, and a~plurality of crusher arms 3 fixed~to~the horizontal shaft 2. The horizontal shaft intersects the crusher arms 3, passing through the oentral axis of~the crusher arms 3 as lllustrated ln ;~ ~ Fig, 2. The crusher arms 3 are spaced apart from each other as illustrated~ln Fig. 2. The horizontal shaft 2, and thus, the crusher arms 3, rotates in the direction of arrow A as~illustrated in Fig, 1, being moved by independent rotational means (not shown).
Adjacent both the lower edge~of the impact table 1 and the crusher ; ;~means lS the crusher grate whlch includes an axle 4i also horizontally disposed and positioned parallel to both the lower edge of the impact table 1 ; and the horizontal shaft 2. A plurality of clrcular discs 5 are mounted to~ ~
the axle 4 and fixed thereto The axle 4 intersects and passes through the central axis of the circular discs 5. The circular discs 5 are spaced apart ::
~_ 3 as illustrated in Fig. 2, The axle ~ is rotatably mounted (not shown) but is not driven by independent means, The crusher arms 3 are movable between the circular discs 5 in oper-ation but do not produce contact, as illustrated in Figs, 1 and 2. The circu-lar discs S rotate, in operation, in the direction of arrow ~ in Fig, 1.
In operation, sinter material is fed by gravity onto the impact table 1, then slides down the slope of the impact table 1 into sontact with the crusher arms 3. ~s the crusher arms 3 are rotated in the direction of -arrow A of Fig. 1, the sinter material is forced downward through the spaces between the circular discs 5~ Sinter material that is too large to pass through the spaces betwesn the circular discs 5 is sheared off to form smaller pieces by the coaction of the crusher arms 3 with the circular discs 5. The movement of the sinter material through the spaces between the clrcular discs 5 causes the circular discs 5 and the axle 4 to rotate, continuously changing the peripheral edge of the circular discs against which sinter material is sheared.
~leat buildup in the circular discs 5, caused by contact with hot sinter material, is controlled by nozzles 6 positioned to spray water onto the peripheral edges of the circular discs 5 away from the wor~ area of the crusher device.
F1g, 3 illustrates an alternate embodiment of the crusher grate in which a plurality of polygonal discs 7 are used rather than circular discs.
The flat surfaces of each of the polygonal discs 7 are parallel with each other, the polygonal discs 7 being mounted to axle 4 in the same manner and with the same spacing as the circular discs 5 of Figs 1 and 2, In this embodiment, the axle 4 is rotatably mounted (not shown), but means to prevent rotation of axle 4 is also employed (also not shown).
The sloped surfaces 8, as illustrated in Fig. 3, in the upper area of the polygonal discs 7 operate in the conventional manner of a beam grate.
However, when sloped surfaces 8 show wear, shaft 4 and polygonal disc 7 are rotated until side 9, for example, is brought into the position of sloped . '' ~: :
surface 8 as shown in Fig. 3. :~-As illustrated previously in Figs. 1 and 2, again in this embodiment a sloped impact table 1 is utilized to absorb tha impact shock of deploying sinter material, As required, the principle, preferred construction and mode of operation of the present invention have been illustrated and described in what i.s now considered to represent its best embodiment. However, it .is to ..
be understood that, within the scope of the appended claims, the invention .
may be practiced otherwise than as specifically illustrated and described.
:`
. . :: : ~
' ~
110~8~6 ~ ~
horizontal axle, the horizontal axle intersecting the discs through their central axis the discs being positioned~ in relation to the crusher arms~ to allow the arms to move spaced apart between the disas~
These and other features of this inventlon will be found more completely disclosed below with reference to a preferre!d embodiment of the ~ -present invention.
Fig. 1 is a side view of the preferred embodiment of~the crushing device, as provided with circular discs, in schematic form.
.:
Fig. 2 shows a partial top view of the preferred embodiment of the crushing device, as provided with circular discs, in schematic form.
Fig. 3 is a slde view of an alternate embodiment~of the crushlng device, as provided with polygonal discs, in schematic form.
Fig. 1 and Fig. 2 show an impact table 1 positioned to slope in re~
lation to the vertical deployment of sinter material. The impact shock of the ~ -falling sinter material is absorbed by the impact table 1.
The crusher means is posltioned at~the lower edge~of~the impact table~l and aomprises a horlzontal shaft~2,~posltioned parallel~to the~lower ~; edge of;the impact table 1, and a~plurality of crusher arms 3 fixed~to~the horizontal shaft 2. The horizontal shaft intersects the crusher arms 3, passing through the oentral axis of~the crusher arms 3 as lllustrated ln ;~ ~ Fig, 2. The crusher arms 3 are spaced apart from each other as illustrated~ln Fig. 2. The horizontal shaft 2, and thus, the crusher arms 3, rotates in the direction of arrow A as~illustrated in Fig, 1, being moved by independent rotational means (not shown).
Adjacent both the lower edge~of the impact table 1 and the crusher ; ;~means lS the crusher grate whlch includes an axle 4i also horizontally disposed and positioned parallel to both the lower edge of the impact table 1 ; and the horizontal shaft 2. A plurality of clrcular discs 5 are mounted to~ ~
the axle 4 and fixed thereto The axle 4 intersects and passes through the central axis of the circular discs 5. The circular discs 5 are spaced apart ::
~_ 3 as illustrated in Fig. 2, The axle ~ is rotatably mounted (not shown) but is not driven by independent means, The crusher arms 3 are movable between the circular discs 5 in oper-ation but do not produce contact, as illustrated in Figs, 1 and 2. The circu-lar discs S rotate, in operation, in the direction of arrow ~ in Fig, 1.
In operation, sinter material is fed by gravity onto the impact table 1, then slides down the slope of the impact table 1 into sontact with the crusher arms 3. ~s the crusher arms 3 are rotated in the direction of -arrow A of Fig. 1, the sinter material is forced downward through the spaces between the circular discs 5~ Sinter material that is too large to pass through the spaces betwesn the circular discs 5 is sheared off to form smaller pieces by the coaction of the crusher arms 3 with the circular discs 5. The movement of the sinter material through the spaces between the clrcular discs 5 causes the circular discs 5 and the axle 4 to rotate, continuously changing the peripheral edge of the circular discs against which sinter material is sheared.
~leat buildup in the circular discs 5, caused by contact with hot sinter material, is controlled by nozzles 6 positioned to spray water onto the peripheral edges of the circular discs 5 away from the wor~ area of the crusher device.
F1g, 3 illustrates an alternate embodiment of the crusher grate in which a plurality of polygonal discs 7 are used rather than circular discs.
The flat surfaces of each of the polygonal discs 7 are parallel with each other, the polygonal discs 7 being mounted to axle 4 in the same manner and with the same spacing as the circular discs 5 of Figs 1 and 2, In this embodiment, the axle 4 is rotatably mounted (not shown), but means to prevent rotation of axle 4 is also employed (also not shown).
The sloped surfaces 8, as illustrated in Fig. 3, in the upper area of the polygonal discs 7 operate in the conventional manner of a beam grate.
However, when sloped surfaces 8 show wear, shaft 4 and polygonal disc 7 are rotated until side 9, for example, is brought into the position of sloped . '' ~: :
surface 8 as shown in Fig. 3. :~-As illustrated previously in Figs. 1 and 2, again in this embodiment a sloped impact table 1 is utilized to absorb tha impact shock of deploying sinter material, As required, the principle, preferred construction and mode of operation of the present invention have been illustrated and described in what i.s now considered to represent its best embodiment. However, it .is to ..
be understood that, within the scope of the appended claims, the invention .
may be practiced otherwise than as specifically illustrated and described.
:`
Claims (5)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A device for crushing sinter material and the like, comprising:
(a) a horizontal shaft rotatably mounted;
(b) a plurality of crusher arms spaced apart and fixed to said horizontal shaft;
(c) means for rotating said horizontal shaft;
(d) a horizontal axle freely rotatably mounted and positioned parallel to said horizontal shaft;
(e) a plurality of discs, disposed parallel to each other and spaced apart, fixed to said horizontal axle, said horizontal axle intersecting said discs through the central axle of said discs, said discs positoned, in relation to said crusher arms, to allow said crusher arms to move through said spaced apart relationship of said discs;
(f) an impact table disposed directly above and adjacent to said discs in a position sloped to absorb the impact of sinter material or the like which falls onto said impact table and thence slides directly onto said plurality of said crusher arms, said impact table also being adjacent to said plurality of said crusher arms.
(a) a horizontal shaft rotatably mounted;
(b) a plurality of crusher arms spaced apart and fixed to said horizontal shaft;
(c) means for rotating said horizontal shaft;
(d) a horizontal axle freely rotatably mounted and positioned parallel to said horizontal shaft;
(e) a plurality of discs, disposed parallel to each other and spaced apart, fixed to said horizontal axle, said horizontal axle intersecting said discs through the central axle of said discs, said discs positoned, in relation to said crusher arms, to allow said crusher arms to move through said spaced apart relationship of said discs;
(f) an impact table disposed directly above and adjacent to said discs in a position sloped to absorb the impact of sinter material or the like which falls onto said impact table and thence slides directly onto said plurality of said crusher arms, said impact table also being adjacent to said plurality of said crusher arms.
2. A device for crushing sinter material and the like as described in claim 1, wherein said discs are polygonal having flat edges thereon, said flat edges of each of said discs being parallel to the corresponding flat edges of each other of said discs.
3. A device for crushing sinter material and the like as described in claim 1, wherein said discs are circular.
4. A device for crushing sinter material and the like as described in claim 1, further comprising means for cooling said discs operating upon said discs away from the work zone of said discs.
5. A device for crushing sinter material and the like as described in claim 4, wherein said discs are circular.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762632061 DE2632061A1 (en) | 1976-07-16 | 1976-07-16 | DEVICE FOR CRUSHING SOLID MATERIALS, IN PARTICULAR SINTER MATERIAL |
| DEP2632061.6 | 1976-07-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1101816A true CA1101816A (en) | 1981-05-26 |
Family
ID=5983195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA282,520A Expired CA1101816A (en) | 1976-07-16 | 1977-07-12 | Device for crushing sinter and the like |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS6018217B2 (en) |
| BE (1) | BE856558A (en) |
| CA (1) | CA1101816A (en) |
| DE (1) | DE2632061A1 (en) |
| FR (1) | FR2358196A1 (en) |
| GB (1) | GB1586873A (en) |
| LU (1) | LU77769A1 (en) |
| NL (1) | NL7707156A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107252720A (en) * | 2017-06-27 | 2017-10-17 | 北京东兴堂科技发展有限公司 | Chinese herbal medicine powder beating device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE263965C (en) * | ||||
| CH362587A (en) * | 1958-12-23 | 1962-06-15 | Zemp & Co | Beater mill for crushing fibrous agricultural produce |
| BE689431A (en) * | 1966-11-08 | 1967-04-14 |
-
1976
- 1976-07-16 DE DE19762632061 patent/DE2632061A1/en not_active Ceased
-
1977
- 1977-06-28 NL NL7707156A patent/NL7707156A/en not_active Application Discontinuation
- 1977-07-06 FR FR7720755A patent/FR2358196A1/en active Granted
- 1977-07-06 BE BE179139A patent/BE856558A/en not_active IP Right Cessation
- 1977-07-12 JP JP8348177A patent/JPS6018217B2/en not_active Expired
- 1977-07-12 CA CA282,520A patent/CA1101816A/en not_active Expired
- 1977-07-14 GB GB2970977A patent/GB1586873A/en not_active Expired
- 1977-07-14 LU LU77769A patent/LU77769A1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6018217B2 (en) | 1985-05-09 |
| FR2358196A1 (en) | 1978-02-10 |
| LU77769A1 (en) | 1977-10-17 |
| NL7707156A (en) | 1978-01-18 |
| JPS5311351A (en) | 1978-02-01 |
| FR2358196B1 (en) | 1983-10-21 |
| GB1586873A (en) | 1981-03-25 |
| DE2632061A1 (en) | 1978-01-19 |
| BE856558A (en) | 1978-01-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |