CN203816704U - Improvement structure of milling roller and milling bowl of bowl-type medium-speed coal mill - Google Patents
Improvement structure of milling roller and milling bowl of bowl-type medium-speed coal mill Download PDFInfo
- Publication number
- CN203816704U CN203816704U CN201420203221.4U CN201420203221U CN203816704U CN 203816704 U CN203816704 U CN 203816704U CN 201420203221 U CN201420203221 U CN 201420203221U CN 203816704 U CN203816704 U CN 203816704U
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- China
- Prior art keywords
- bowl
- grinding roller
- mill
- milling
- cambridge ring
- Prior art date
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- Expired - Fee Related
Links
- 238000003801 milling Methods 0.000 title abstract description 26
- 239000003245 coal Substances 0.000 title abstract description 24
- 238000000227 grinding Methods 0.000 claims description 79
- 239000007937 lozenge Substances 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007547 defect Effects 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 an improvement structure of a milling roller and a milling bowl of a bowl-type medium-speed coal mill. The improvement structure comprises a milling roller device and a milling bowl device, wherein the milling roller device is positioned above the milling bowl device and comprises a milling roller seat and the milling roller; the milling roller is mounted on the milling roller seat; the milling bowl device comprises the milling bowl and a milling bowl lining plate which is mounted on the milling bowl; an arc-shaped groove is formed in a milling surface of the milling bowl lining plate; correspondingly, the milling roller is designed in a shape of a convex arc so as to be matched with the arc-shaped groove. Based on the improvement structure, the milling time of raw coal is prolonged, so that the milling efficiency is improved.
Description
Technical field
The utility model relates to a kind of bowl pulverizer, refers in particular to a kind of bowl pulverizer grinding roller mill bowl and improves structure.
Background technology
In prior art, as shown in Figure 2, the Burnisher apparatus 10 of bowl pulverizer is suspended in separator body device 20, be positioned at mill cup apparatus 30 tops, and mill cup apparatus 30 is arranged in side body set 40, when raw coal is full of the gap between Burnisher apparatus 10 and mill cup apparatus 30, Burnisher apparatus 10 can freely rotate, and raw coal is milled.
As shown in Figure 1, Burnisher apparatus 10 comprises grinding roller seat 101 and grinding roller 102, and grinding roller 102 is arranged on grinding roller seat 101; And mill cup apparatus 30 comprises mill bowl 301 and mill bowl liner plate 302, mill bowl liner plate 302 is arranged on mill bowl 301.When 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, the abradant surface of described mill bowl liner plate 302 is set to inclined-plane, accordingly, for coordinating, grind, grinding roller 102 is also set to inclined-plane with the contact-making surface of the abradant surface of mill bowl liner plate 302, and its defect is:
One, when raw coal is full of the gap between Burnisher apparatus 10 and mill cup apparatus 30, owing to grinding the abradant surface of bowl liner plate 302, be set to inclined-plane, make raw coal be easy to landing, milling time is shorter, and former coal grinding is insufficient, do not reach pulverized coal grinding standard, need repeatedly grind, make production efficiency lower, and the rate of wear of mill bowl liner plate 302 is accelerated.
Two, owing to grinding the abradant surface of bowl liner plate 302, be set to inclined-plane, 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 grinding roller mill bowl to improve structure, to extend the milling time of raw coal, improves grinding efficiency.
For reaching above-mentioned purpose, solution of the present utility model is:
Bowl pulverizer grinding roller mill bowl improves a structure, comprises Burnisher apparatus and mill cup apparatus, and Burnisher apparatus is positioned at mill cup apparatus top; Wherein, Burnisher apparatus comprises grinding roller seat and grinding roller, and grinding roller is arranged on grinding roller seat, and 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, Burnisher apparatus also comprises cambridge ring and screw rod; In grinding roller seat cylindrical side Monday, form inclined-plane, screw rod one end is screwed onto in the excircle that forms 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 inclined-plane; Grinding roller is arranged on lozenges and inclined-plane; Rotating screw bolt makes cambridge ring near under inclined-plane mobile status, cambridge ring extruding grinding roller, and rotating screw bolt makes cambridge ring away under inclined-plane mobile status, and cambridge ring unclamps grinding roller.
Further, grinding roller forms by roller core and at the surperficial wearing layer forming of roller core.
Adopt after such scheme, the utility model forms arc groove on the abradant surface of mill bowl liner plate, accordingly, it is circular-arc that grinding roller is set to the projection that coordinates with arc groove, the mill bowl liner plate that is described mill cup apparatus is set to tire formula liner plate, accordingly, the grinding roller of described Burnisher apparatus is set to the tire formula grinding roller corresponding with tire formula liner plate; Compared with prior art, it has the following advantages:
One, on the abradant surface due to mill bowl liner plate, form arc groove, be difficult for landing after making raw coal fall into arc groove, milling time is longer, and former coal grinding is abundant, without repeatedly grinding, and then enhances productivity, and reduces the rate of wear of mill bowl liner plate.
Two, on the abradant surface due to mill bowl liner plate, form arc groove, make the area of former coal grinding larger, the raw coal amount that single grinds is more, makes the efficiency of grinding higher.
Accompanying drawing explanation
Fig. 1 is prior art grinding roller mill bowl structure schematic diagram;
Fig. 2 is the structural representation that prior art grinding roller mill bowl is installed on coal pulverizer;
Fig. 3 is the utility model grinding roller mill bowl structure schematic diagram;
Fig. 4 is the structural representation that the utility model grinding roller mill bowl is installed on coal pulverizer.
Label declaration
Burnisher apparatus 1 grinding roller seat 11
Grinding roller 12 roller cores 121
Wearing layer 122 cambridge rings 13
Screw rod 14 mill cup apparatus 2
Mill bowl 21 mill bowl liner plates 22
Arc groove 221.
The specific embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in detail.
Consult shown in Fig. 3 and Fig. 4, a kind of bowl pulverizer grinding roller mill bowl that the utility model discloses improves structure, comprises Burnisher apparatus 1 and mill cup apparatus 2, and Burnisher apparatus 1 is positioned at mill cup apparatus 2 tops.
Wherein, Burnisher apparatus 1 comprises grinding roller seat 11 and grinding roller 12, and grinding roller 12 is arranged on grinding roller seat 11, and mill cup apparatus 2 comprises mill bowl 21 and mill bowl liner plate 22, and mill bowl liner plate 22 is arranged on mill bowl 21.
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.Described grinding roller 12 forms by roller core 121 and at the surperficial wearing layer 122 forming of roller core 121.
On abradant surface due to mill bowl liner plate 22, form arc groove 221, be difficult for landing after making raw coal fall into arc groove 221, milling time is longer, and former coal grinding is abundant, without repeatedly grinding, and then enhances productivity, and reduces the rate of wear of mill bowl liner plate 22; Meanwhile, make the area of former coal grinding larger, the raw coal amount that single grinds is more, makes the efficiency of grinding higher.
Described Burnisher apparatus 1 also comprises cambridge ring 13 and screw rod 14; In grinding roller seat 11 cylindrical sides Monday, form inclined-plane, screw rod 14 one end are screwed onto in the excircle that forms inclined-plane one side, and the other end is screwed onto in cambridge ring 13; Cambridge ring 13 is arranged on grinding roller excircle opposite side, and the lozenges of cambridge ring 13 is relative with inclined-plane; Grinding roller 12 is arranged on lozenges and inclined-plane; Rotating screw bolt 14 makes cambridge ring 13 near under inclined-plane mobile status, cambridge ring 13 extruding grinding rollers 12, and rotating screw bolt 14 makes cambridge ring 13 away under inclined-plane mobile status, and cambridge ring 13 unclamps grinding roller 12.
When grinding roller 12 is installed, only need rotating screw bolt 14 to make cambridge ring 13 near under inclined-plane mobile status, cambridge ring 13 extruding grinding rollers 12, the interference fit without heating; While needing detachable maintaining to change grinding roller 12, only need rotating screw bolt 14 to make cambridge ring 13 away under inclined-plane mobile status, cambridge ring 13 unclamps grinding roller 12, and also without heating dismounting, it is comparatively easy that grinding roller 12 is installed and dismantled, and more for convenience.
Grinding roller mill bowl is installed on the structural representation of coal pulverizer as shown in Figure 4, 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 (3)
1. bowl pulverizer grinding roller mill bowl improves a structure, it is characterized in that: comprise Burnisher apparatus and mill cup apparatus, Burnisher apparatus is positioned at mill cup apparatus top; Wherein, Burnisher apparatus comprises grinding roller seat and grinding roller, and grinding roller is arranged on grinding roller seat, and 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 grinding roller mill bowl as claimed in claim 1 improves structure, it is characterized in that: Burnisher apparatus also comprises cambridge ring and screw rod; In grinding roller seat cylindrical side Monday, form inclined-plane, screw rod one end is screwed onto in the excircle that forms 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 inclined-plane; Grinding roller is arranged on lozenges and inclined-plane; Rotating screw bolt makes cambridge ring near under inclined-plane mobile status, cambridge ring extruding grinding roller, and rotating screw bolt makes cambridge ring away under inclined-plane mobile status, and cambridge ring unclamps grinding roller.
3. a kind of bowl pulverizer grinding roller mill bowl as claimed in claim 1 improves structure, it is characterized in that: grinding roller forms by roller core and at the surperficial wearing layer forming of roller core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203221.4U CN203816704U (en) | 2014-04-24 | 2014-04-24 | Improvement structure of milling roller and milling bowl of bowl-type medium-speed coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203221.4U CN203816704U (en) | 2014-04-24 | 2014-04-24 | Improvement structure of milling roller and milling bowl of bowl-type medium-speed coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203816704U true CN203816704U (en) | 2014-09-10 |
Family
ID=51472248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420203221.4U Expired - Fee Related CN203816704U (en) | 2014-04-24 | 2014-04-24 | Improvement structure of milling roller and milling bowl of bowl-type medium-speed coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203816704U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103908992A (en) * | 2014-04-24 | 2014-07-09 | 厦门金邦达实业有限责任公司 | Grinding roller and grinding bowl improvement structure of bowl-type medium speed mill |
| CN105618202A (en) * | 2016-03-17 | 2016-06-01 | 厦门金邦达实业有限责任公司 | Medium-speed coal mill with airfoil impeller guiding device |
| CN109311022A (en) * | 2016-06-21 | 2019-02-05 | 通用电气技术有限公司 | System, method and apparatus for upgrading a pulverizer |
-
2014
- 2014-04-24 CN CN201420203221.4U patent/CN203816704U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103908992A (en) * | 2014-04-24 | 2014-07-09 | 厦门金邦达实业有限责任公司 | Grinding roller and grinding bowl improvement structure of bowl-type medium speed mill |
| CN105618202A (en) * | 2016-03-17 | 2016-06-01 | 厦门金邦达实业有限责任公司 | Medium-speed coal mill with airfoil impeller guiding device |
| CN109311022A (en) * | 2016-06-21 | 2019-02-05 | 通用电气技术有限公司 | System, method and apparatus for upgrading a pulverizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |