CN203816705U - Shoe type milling roll bowl device of bowl-type medium-speed coal mill - Google Patents
Shoe type milling roll bowl device of bowl-type medium-speed coal mill Download PDFInfo
- Publication number
- CN203816705U CN203816705U CN201420203246.4U CN201420203246U CN203816705U CN 203816705 U CN203816705 U CN 203816705U CN 201420203246 U CN201420203246 U CN 201420203246U CN 203816705 U CN203816705 U CN 203816705U
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- CN
- China
- Prior art keywords
- grinding roller
- bowl
- mill
- milling
- cambridge ring
- 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 - Lifetime
Links
- 238000003801 milling Methods 0.000 title abstract description 25
- 239000003245 coal Substances 0.000 title abstract description 21
- 238000000227 grinding Methods 0.000 claims description 102
- 239000007937 lozenge Substances 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The utility model discloses a shoe type milling roll bowl device of a bowl-type medium-speed coal mill. A milling roll device comprises a milling roll seat, a milling roll, a wedge ring and a screw rod, wherein a first inclined surface is formed in one side of the outer circumference of the milling roll seat; one end of the screw rod is screwed into the outer circumference of the side on which the first inclined surface is formed, while the other end of the screw rod is screwed into the wedge ring; the wedge ring is arranged at the other side of the outer circumference of the milling roll seat and the wedge surface of the wedge ring is opposite to the first inclined surface; the milling roll is arranged on the wedge surface and the first inclined surface; when the screw rod is rotated to move the wedge ring towards the first inclined surface, the wedge ring presses the milling roll; and when the screw rod is rotated to move the wedge ring to be far away from the first inclined surface, the milling roll is loosened from the wedge ring. A milling bowl device comprises a milling bowl and a milling bowl lining plate on the milling bowl, wherein an arc-shaped groove is formed in the milling surface of the milling bowl lining plate; and correspondingly, the milling roll is in a shape of a convex arc matched with the arc-shaped groove. The milling roll is easy and convenient to install and dismantle, the milling time of raw coal is prolonged and the milling efficiency is enhanced.
Description
Technical field
The utility model relates to a kind of bowl pulverizer, refers in particular to a kind of bowl pulverizer tire formula grinding roller mill cup apparatus.
Background technology
In prior art, as shown in Figure 1, the disclosed a kind of bowl pulverizer tire formula grinding roller mill cup apparatus of prior art, wherein, Burnisher apparatus 10 is suspended in separator body device 20, be positioned at mill cup apparatus 30 tops, and mill cup apparatus 30 is arranged in separator body device 40.
As shown in Figure 2, described Burnisher apparatus 10 comprises grinding roller seat 101 and grinding roller 102, the wearing layer 1022 that this grinding roller 102 forms by roller core 1021 and on roller core 1021 surfaces forms, grinding roller 102 is arranged on grinding roller seat 101, and with grinding roller seat 101 interference fit, for grinding roller 102 is installed firmly, its magnitude of interference is larger.
As shown in Figure 3, described mill cup apparatus 30 comprises mill bowl 301 and mill bowl liner plate 302, and mill bowl liner plate 302 is arranged on mill bowl 301.In the time milling raw coal, grinding roller 102 is upper rolling of abradant surface (mill bowl liner plate 302 upper surfaces) of mill bowl liner plate 302, and the abradant surface of described mill bowl liner plate 302 is set to inclined-plane, accordingly, grind for coordinating, grinding roller 102 is also set to inclined-plane with the contact-making surface of the abradant surface of mill bowl liner plate 302.
Therefore there is following defect in the mill of the bowl pulverizer tire formula grinding roller described in prior art cup apparatus:
One, in the time that grinding roller 102 is installed on grinding roller seat 101, need heat grinding roller 102; Change when grinding roller 102, need heat grinding roller 102 equally, and while changing grinding roller 102, whole Burnisher apparatus 10 need be flipped out in separator body device 20, and whole Burnisher apparatus 10 weighs several tons; Installation and replacing are very inconvenient, and have replacing potential safety hazard.
Two, the abradant surface of mill bowl liner plate 302 is set to inclined-plane, makes raw coal be easy to landing, and milling time is shorter, and former coal grinding is insufficient, does not reach pulverized coal grinding standard, need repeatedly grind, and makes production efficiency lower, and the rate of wear of mill bowl liner plate 302 is accelerated; Meanwhile, make the area of former coal grinding less, the raw coal amount that single grinds is less, makes the efficiency of grinding lower.
Utility model content
The purpose of this utility model is to provide a kind of bowl pulverizer tire formula grinding roller mill cup apparatus, make grinding roller install and when dismounting comparatively easily and more for convenience, extend the milling time of raw coal simultaneously, improve grinding efficiency.
For reaching above-mentioned purpose, solution of the present utility model is:
A kind of bowl pulverizer tire formula grinding roller mill cup apparatus, comprises Burnisher apparatus and mill cup apparatus, and wherein, Burnisher apparatus comprises grinding roller seat, grinding roller, cambridge ring and screw rod; Form the first inclined-plane in grinding roller seat cylindrical side Monday, screw rod one end is screwed onto in the excircle that forms the first inclined-plane one side, and the other end is screwed onto in cambridge ring; Cambridge ring is arranged on grinding roller seat excircle opposite side, and the lozenges of cambridge ring is relative with the first inclined-plane; Grinding roller is arranged on lozenges and the first inclined-plane; Rotating screw bolt makes cambridge ring near under the first inclined-plane mobile status, cambridge ring extruding grinding roller, and rotating screw bolt makes cambridge ring away under the first inclined-plane mobile status, and cambridge ring unclamps grinding roller; Mill cup apparatus comprises mill bowl and mill bowl liner plate, and mill bowl liner plate is arranged on mill bowl; On the abradant surface of mill bowl liner plate, form arc groove, accordingly, it is circular-arc that grinding roller is set to the projection that coordinates with arc groove.
Further, on mill bowl liner plate, form one deck overlay cladding by the mode of built-up welding.
Further, grinding roller seat excircle opposite side is set to arc surface, accordingly, also forms arc surface on cambridge ring, and this arc surface is positioned at the opposite side that lozenges is relative; Cambridge ring arc surface is sliding on grinding roller seat excircle arc surface.
Further, on grinding roller, form respectively the second inclined-plane coordinating with grinding roller seat excircle the first inclined-plane and cambridge ring lozenges.
Further, the wearing layer that grinding roller forms by roller core and on roller core surface forms.
Adopt after such scheme, the utility model compared with prior art has the following advantages:
One, in the time that grinding roller is installed, rotating screw bolt makes cambridge ring near under the first inclined-plane mobile status, cambridge ring extruding grinding roller, the interference fit without heating; While needing detachable maintaining to change grinding roller, rotating screw bolt makes cambridge ring away under the first inclined-plane mobile status, and cambridge ring unclamps grinding roller, also without heating dismounting, makes grinding roller comparatively easy in the time installing and dismantle, and more for convenience.
Two, on the abradant surface of mill bowl liner plate, form arc groove, be difficult for landing after making raw coal fall into arc groove, milling time is longer, former coal grinding is abundant, without repeatedly grinding, and then enhance productivity, reduce the rate of wear of mill bowl liner plate, simultaneously, make the area of former coal grinding larger, the raw coal amount that single grinds is more, makes the efficiency of grinding higher.
Brief description of the drawings
Fig. 1 is the structural representation that prior art grinding roller mill cup apparatus is installed on coal pulverizer;
Fig. 2 is prior art Burnisher apparatus structural representation;
Fig. 3 is prior art grinding roller mill cup apparatus structural representation;
Fig. 4 is the utility model Burnisher apparatus structural representation;
Fig. 5 is the utility model grinding roller mill cup apparatus structural representation;
Fig. 6 is the structural representation that the utility model grinding roller mill cup apparatus is installed on coal pulverizer.
Label declaration
Burnisher apparatus 10 grinding roller seats 101
Grinding roller 102 roller cores 1021
Wearing layer 1022 grinds cup apparatus 30
Mill bowl 301 mill bowl liner plates 302
Separator body device 40
Burnisher apparatus 1 grinding roller seat 11
Grinding roller 12 roller cores 121
Wearing layer 122 cambridge rings 13
Screw rod 14 grinds cup apparatus 2
Mill bowl 21 mill bowl liner plates 22
Arc groove 221.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the utility model is described in detail.
Consult shown in Fig. 4 to Fig. 6, a kind of bowl pulverizer tire formula grinding roller mill cup apparatus that the utility model discloses, comprises Burnisher apparatus 1 and mill cup apparatus 2.
As shown in Figure 4, wherein, Burnisher apparatus 1 comprises grinding roller seat 11, grinding roller 12, cambridge ring 13 and screw rod 14.Form the first inclined-plane in grinding roller seat 11 cylindrical sides Monday, screw rod 14 one end are screwed onto in the excircle that forms the first inclined-plane one side, and the other end is screwed onto in cambridge ring 13.Cambridge ring 13 is arranged on grinding roller seat 11 excircle opposite sides, and the lozenges of cambridge ring 13 is relative with the first inclined-plane.
Grinding roller 12 is arranged on lozenges and the first inclined-plane, and the wearing layer 122 that described grinding roller 12 forms by roller core 121 and on roller core 121 surfaces forms.For further making cambridge ring 13 more firm in the time locking grinding roller 12, in the present embodiment, on grinding roller 12, form respectively the second inclined-plane coordinating with grinding roller seat 11 excircle the first inclined-planes and cambridge ring 13 lozenges.
Rotating screw bolt 14 makes cambridge ring 13 near under the first inclined-plane mobile status, and cambridge ring 13 pushes grinding roller 12, and rotating screw bolt 14 makes cambridge ring 13 away under the first inclined-plane mobile status, and cambridge ring 13 unclamps grinding roller 12.
When grinding roller 12 is installed, rotating screw bolt 14 makes cambridge ring 13 near under the first inclined-plane mobile status, and cambridge ring 13 pushes grinding roller 12, the interference fit without heating; When dismounting grinding roller 12, rotating screw bolt 14 makes cambridge ring 13 away under the first inclined-plane mobile status, and cambridge ring 13 unclamps grinding roller 12, also without heating dismounting, comparatively easy when installing and dismantling, and more for convenience.
As shown in Figure 5, mill cup apparatus 2 comprises mill bowl 21 and mill bowl liner plate 22, mill bowl liner plate 22 is arranged on mill bowl 21, in the present embodiment, on mill bowl liner plate 22, form one deck overlay cladding by the mode of built-up welding, mill bowl liner plate 22 is made up of multiple lining plates conventionally, and wherein a lining plate grinds while damage, mode by built-up welding is repaired the lining plate of damage, without changing.
On the abradant surface of mill bowl liner plate 22, form arc groove 221, make the mill bowl liner plate 22 that grinds cup apparatus 2 be set to tire formula liner plate, accordingly, it is circular-arc that grinding roller 12 is set to the projection that coordinates with arc groove 221, and the grinding roller 12 of described Burnisher apparatus 1 is set to the tire formula grinding roller corresponding with tire formula liner plate.
On the abradant surface of mill bowl liner plate 22, form arc groove 221, after making raw coal fall into arc groove 221, be difficult for landing, milling time is longer, former coal grinding is abundant, without repeatedly grinding, and then enhances productivity, simultaneously, make the area of former coal grinding larger, the raw coal amount that single grinds is more, makes the efficiency of grinding higher.
In the present embodiment, grinding roller seat 11 excircle opposite sides are set to arc surface, accordingly, also form arc surface on cambridge ring 13, and this arc surface is positioned at the opposite side that lozenges 13 is relative; Cambridge ring 13 arc surfaces are sliding on grinding roller seat 11 excircle arc surfaces, makes cambridge ring 13 sliding friction on grinding roller seat 11 excircle arc surfaces less, mobile comparatively laborsaving.
Grinding roller mill cup apparatus is installed on the structural representation of coal pulverizer as shown in Figure 6, and Burnisher apparatus 1 is suspended in separator body device, be positioned at mill cup apparatus 2 tops, and mill cup apparatus 2 is arranged in side body set.
The foregoing is only an embodiment of the present utility model, the not restriction to this case design, all equivalent variations of doing according to the design key of this case, all fall into the protection domain of this case.
Claims (5)
1. a bowl pulverizer tire formula grinding roller mill cup apparatus, is characterized in that: comprise Burnisher apparatus and mill cup apparatus, wherein, Burnisher apparatus comprises grinding roller seat, grinding roller, cambridge ring and screw rod; Form the first inclined-plane in grinding roller seat cylindrical side Monday, screw rod one end is screwed onto in the excircle that forms the first inclined-plane one side, and the other end is screwed onto in cambridge ring; Cambridge ring is arranged on grinding roller seat excircle opposite side, and the lozenges of cambridge ring is relative with the first inclined-plane; Grinding roller is arranged on lozenges and the first inclined-plane; Rotating screw bolt makes cambridge ring near under the first inclined-plane mobile status, cambridge ring extruding grinding roller, and rotating screw bolt makes cambridge ring away under the first inclined-plane mobile status, and cambridge ring unclamps grinding roller; Mill cup apparatus comprises mill bowl and mill bowl liner plate, and mill bowl liner plate is arranged on mill bowl; On the abradant surface of mill bowl liner plate, form arc groove, accordingly, it is circular-arc that grinding roller is set to the projection that coordinates with arc groove.
2. a kind of bowl pulverizer tire formula grinding roller mill cup apparatus as claimed in claim 1, is characterized in that: on mill bowl liner plate, form one deck overlay cladding by the mode of built-up welding.
3. a kind of bowl pulverizer tire formula grinding roller mill cup apparatus as claimed in claim 1, is characterized in that: grinding roller seat excircle opposite side is set to arc surface, and accordingly, also form arc surface on cambridge ring, this arc surface is positioned at the opposite side that lozenges is relative; Cambridge ring arc surface is sliding on grinding roller seat excircle arc surface.
4. a kind of bowl pulverizer tire formula grinding roller mill cup apparatus as claimed in claim 1, is characterized in that: on grinding roller, form respectively the second inclined-plane coordinating with grinding roller seat excircle the first inclined-plane and cambridge ring lozenges.
5. a kind of bowl pulverizer tire formula grinding roller mill cup apparatus as claimed in claim 1, is characterized in that: the wearing layer that grinding roller forms by roller core and on roller core surface forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203246.4U CN203816705U (en) | 2014-04-24 | 2014-04-24 | Shoe type milling roll bowl device of bowl-type medium-speed coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203246.4U CN203816705U (en) | 2014-04-24 | 2014-04-24 | Shoe type milling roll bowl device of bowl-type medium-speed coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203816705U true CN203816705U (en) | 2014-09-10 |
Family
ID=51472249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420203246.4U Expired - Lifetime CN203816705U (en) | 2014-04-24 | 2014-04-24 | Shoe type milling roll bowl device of bowl-type medium-speed coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203816705U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103908993A (en) * | 2014-04-24 | 2014-07-09 | 厦门金邦达实业有限责任公司 | Pneumatic type grinding roller and grinding bowl devices of bowl-type medium-speed coal mill |
-
2014
- 2014-04-24 CN CN201420203246.4U patent/CN203816705U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103908993A (en) * | 2014-04-24 | 2014-07-09 | 厦门金邦达实业有限责任公司 | Pneumatic type grinding roller and grinding bowl devices of bowl-type medium-speed coal mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |
|
| CX01 | Expiry of patent term |