CN201353515Y - Moving ring used for coal mill - Google Patents
Moving ring used for coal mill Download PDFInfo
- Publication number
- CN201353515Y CN201353515Y CNU200920105260XU CN200920105260U CN201353515Y CN 201353515 Y CN201353515 Y CN 201353515Y CN U200920105260X U CNU200920105260X U CN U200920105260XU CN 200920105260 U CN200920105260 U CN 200920105260U CN 201353515 Y CN201353515 Y CN 201353515Y
- Authority
- CN
- China
- Prior art keywords
- rotating ring
- nozzle
- ring
- ring body
- coal pulverizer
- 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
- 239000003245 coal Substances 0.000 title claims abstract description 25
- 238000003466 welding Methods 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 6
- 244000309464 bull Species 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The utility model discloses a moving ring used for a coal mill, comprising a moving ring body and a nozzle ring; the outer surface of the moving ring body is provided with the nozzle ring; and the nozzle ring is formed by splicing a plurality of nozzle sections which are arranged along the periphery of the moving ring body. In the moving ring of the coal mill, the outer surface of the moving ring body is provided with the nozzle ring spliced by a plurality of nozzle sections, the nozzle ring replaces the existing integrated nozzle ring; and when the nozzle ring is replaced, only the maintainer is needed to replace the nozzle sections in the coal mill without using lifting equipment for replacing the whole nozzle ring, thus being convenient to future maintenance. In addition, when the nozzle ring is replaced, only the damaged nozzle sections are disassembled for replacing without replacing the whole nozzle ring, thus improving the utilization ratio of the spare parts.
Description
Technical field
The utility model relates to a kind of coal pulverizer rotating ring.
Background technology
Rotating ring in the existing as shown in Figure 1 coal pulverizer, constitute by rotating ring body 2 and nozzle ring 1, rotating ring body 2 is a ring body structurc, nozzle ring 1 is that an integral ring-shaped structure ring body outer surface is provided with a plurality of nozzles, and nozzle ring 1 circumferentially is fixed on the outer surface of rotating ring body 2, when nozzle ring 1 appearance damage needs to change, need be with nozzle ring 1 integral replacing, and need earlier the coal pulverizer superstructure be unloaded with large-scale hanging device, nozzle ring 1 could be taken out then, waste time and energy.
The utility model content
At the problem that prior art exists, the utility model provides a kind of need not take out the rotating ring that can keep in repair its abrading section quickly and easily with nozzle ring integral body from coal pulverizer of rotating ring.
For achieving the above object, a kind of coal pulverizer rotating ring of the utility model comprises rotating ring body and nozzle ring, and the outer surface of rotating ring body is provided with nozzle ring, and this nozzle ring is spliced by some nozzle segments along rotating ring body circumferential array.
Further, described nozzle segment is weldingly fixed on the described rotating ring body.
Further, described nozzle segment is provided with through hole, and described nozzle segment adopts bolt to be fastened on the described rotating ring body by this through hole.
Further, described rotating ring body middle part is along a groove circumferentially is set, the concave surface of this groove is vertical mutually with the outer surface of described rotating ring body, described nozzle segment bottom plug-in mounting is gone in the groove, top is fixed on the rotating ring body, and the surface of described nozzle segment and described groove are in same plane with the rotating ring body working face of lower part.
Further, the bottom of described nozzle segment is provided with the projection that at least one and described groove are complementary.
Further, described nozzle segment top is fastened on the described rotating ring body by welding or bolt.
A kind of coal pulverizer rotating ring of the utility model, on the outer surface of rotating ring body, be provided with the nozzle ring that is spliced by the polylith nozzle segment, replaced the nozzle ring that existing one constitutes, nozzle ring only needs the attendant to arrive replacing nozzle segment in the coal pulverizer when changing, need not to change whole nozzle ring, made things convenient for maintenance in the future with hanging device.In addition, when changing nozzle ring, only the nozzle segment that damage is fallen need be disassembled and change, need not to change whole nozzle ring, improve the utilization rate of spare part.
Description of drawings
Fig. 1 is the stereogram of existing rotating ring;
Fig. 2 is the stereogram of the utility model rotating ring;
Fig. 3 assembles schematic diagram for the utility model rotating ring in coal pulverizer.
The specific embodiment
Shown in Fig. 2 and 3, a kind of coal pulverizer rotating ring of the utility model, comprise rotating ring body 3 and nozzle segment 4, rotating ring and stationary ring 9 are fixed between coal pulverizer upper mechanism 7 and the lower mechanisms 8, stationary ring 9 and rotating ring are provided with one heart, at least one blade 41 is arranged on the nozzle segment 4, nozzle segment 4 and blade 41 integrally castings are shaped, the space forms nozzle between the blade 41, coal pulverizer substructure 8 is provided with bull ring pallet 6, is fixed with bull ring 5 on the bull ring pallet 6, and rotating ring body 3 is fixedly mounted on the bull ring 5, be welded with nozzle ring on the outer surface of rotating ring body 3, this nozzle ring is spliced by some nozzle segments 4 along rotating ring body 3 circumferential array.
Can adopt multiple connected mode between rotating ring body 3 and the nozzle segment 4, can through hole be set on nozzle segment 4 and adopt bolted mode, nozzle segment 4 is fixed on the rotating ring body 3, can also be at rotating ring body 3 middle parts along a groove circumferentially is set, the concave surface of this groove is vertical mutually with the outer surface of rotating ring body 3, nozzle segment 4 bottom plug-in mountings are gone in the groove, top welding or bolt are fastened on the rotating ring body 3, and the surface of nozzle segment 4 and described groove with rotating ring body 3 outer surface of lower part in same plane.
A kind of coal pulverizer of the utility model is provided with the nozzle ring that is spliced by the polylith nozzle segment with rotating ring on the outer surface of rotating ring body, because nozzle ring adopts segmentation structure to be spliced to form by the polylith nozzle segment, only need several sections nozzle segments that damage are changed in maintenance, when changing, need not the integral replacing nozzle ring, save goods and materials, improved the utilization rate of spare part.The utility model coal pulverizer is need not dismantle the coal pulverizer upper mechanism with the characteristics of rotating ring maximum, and is promptly replaceable in the mill body, shortened the repair time greatly, and turning round continuously for power plant provides safeguard.And in the maintenance process, fee of material, labour cost, handling expense also significantly reduce, and have reduced maintenance and maintenance cost.
Claims (6)
1. a coal pulverizer rotating ring comprises rotating ring body and nozzle ring, and the outer surface of rotating ring body is provided with nozzle ring, it is characterized in that, described nozzle ring is spliced by some nozzle segments along described rotating ring body circumferential array.
2. coal pulverizer rotating ring as claimed in claim 1 is characterized in that, described nozzle segment is weldingly fixed on the described rotating ring body.
3. coal pulverizer rotating ring as claimed in claim 1 is characterized in that described nozzle segment is provided with through hole, and described nozzle segment adopts bolt to be fastened on the described rotating ring body by this through hole.
4. coal pulverizer rotating ring as claimed in claim 1, it is characterized in that, described rotating ring body middle part is along a groove circumferentially is set, the concave surface of this groove is vertical mutually with the outer surface of described rotating ring body, described nozzle segment bottom plug-in mounting is gone in the groove, top is fixed on the rotating ring body, and the surface of described nozzle segment and described groove are in same plane with the rotating ring body working face of lower part.
5. coal pulverizer rotating ring as claimed in claim 4 is characterized in that, the bottom of described nozzle segment is provided with the projection that at least one and described groove are complementary.
6. coal pulverizer rotating ring as claimed in claim 4 is characterized in that, described nozzle segment top is fastened on the described rotating ring body by welding or bolt
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920105260XU CN201353515Y (en) | 2009-01-19 | 2009-01-19 | Moving ring used for coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920105260XU CN201353515Y (en) | 2009-01-19 | 2009-01-19 | Moving ring used for coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201353515Y true CN201353515Y (en) | 2009-12-02 |
Family
ID=41409855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200920105260XU Expired - Fee Related CN201353515Y (en) | 2009-01-19 | 2009-01-19 | Moving ring used for coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201353515Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106492936A (en) * | 2015-09-06 | 2017-03-15 | 上海上电漕泾发电有限公司 | A kind of segmented coal pulverizer sound ring structure |
| CN113908930A (en) * | 2021-09-26 | 2022-01-11 | 浙江浙能乐清发电有限责任公司 | HP type coal mill |
-
2009
- 2009-01-19 CN CNU200920105260XU patent/CN201353515Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106492936A (en) * | 2015-09-06 | 2017-03-15 | 上海上电漕泾发电有限公司 | A kind of segmented coal pulverizer sound ring structure |
| CN113908930A (en) * | 2021-09-26 | 2022-01-11 | 浙江浙能乐清发电有限责任公司 | HP type coal mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING JIADE GUONENG POWER TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WU JUNMING Effective date: 20100129 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100129 Address after: Room B1109, Century Economic & Trade Building, 72 West Third Ring Road, Beijing, Haidian District, China: 100048 Patentee after: Beijing fine German Power Technology Co., Ltd. Address before: No. 3, building 131, Lane 102488, Xinjian village, Fangshan District, Beijing, China Patentee before: Wu Junming |
|
| DD01 | Delivery of document by public notice |
Addressee: Li He Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Beijing fine German Power Technology Co., Ltd. Li He Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20110119 |