CN103990516B - Mining grinding mill feed pipe outer sealing device - Google Patents
Mining grinding mill feed pipe outer sealing device Download PDFInfo
- Publication number
- CN103990516B CN103990516B CN201410200728.9A CN201410200728A CN103990516B CN 103990516 B CN103990516 B CN 103990516B CN 201410200728 A CN201410200728 A CN 201410200728A CN 103990516 B CN103990516 B CN 103990516B
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- China
- Prior art keywords
- feed pipe
- ring
- seal ring
- sealing device
- snap ring
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- 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
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- 238000007789 sealing Methods 0.000 title claims abstract description 44
- 238000005065 mining Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 30
- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
Mining grinding mill feed pipe outer sealing device, the end of grinding machine is provided with the quill shaft with bushing for feeding, one end of described feed pipe is inserted in this bushing for feeding, sealing device is fixedly mounted on the ring flange of bushing for feeding, and rotate with the rotation of quill shaft, this sealing device is by inner seal ring, the sealing ring of exterior seal ring and impeller snap ring compound seal positioned there between, seal ring set is located on the outer peripheral face of feed pipe, the top of feed pipe offers back material hole corresponding to the position of impeller snap ring, the inwall side face of described impeller snap ring is provided with scrapes, for being rotated by the ore pulp breaking through inner seal ring, the internal tooth returning in back material hole。The ore pulp of seepage is acted the effect of intercepting by inner seal ring, even if breaking through inner seal ring from the ore pulp of grinding machine internal leak, also the impeller snap ring being rotated rotates to be scraped in the back material hole returning to feed pipe, intercept and dredge the rotary seal structure combined, the sealing of mining grinding mill feed end can be realized, stop ore pulp to overflow to outside grinding machine。
Description
Technical field
The present invention relates to mill feeding end technical field of sealing technology, specifically a kind of mining grinding mill feed pipe outer sealing device。
Background technology
Grinding machine is the equipment of most critical in ore grinding of ore operation; the problem that usually can run into grinding mill barrel feed end spillage in grinding machine produces; this is owing to feed pipe and the feed hopper of grinding machine all do not rotate with rotating cylinder; relative sliding is there is between the bushing for feeding and the static feed pipe that rotate; when the ore pulp within grinding machine is higher than feed pipe external diameter, ore pulp will overflow from feed pipe。It will be apparent that need rotational sealing structure between rotating part and non-rotating portion。During mining grinding mill normal operation, continuous horizontal type quickly rotates 24 hours every days, and feed pipe is static not turn, and between sound, conventional seals will by Fast Wearing, it is difficult to play effective sealing function, causes the frequent replacing sealing structure, inefficiency。For many years, the seepage of mining grinding mill feed end almost becomes a kind of universal phenomenon, and grinding machine material leakage not only affects working environment, and harm workman is healthy, and needs frequent maintenance down and clean material leakage, thus affecting the operating rate of grinding machine。
Summary of the invention
The present invention solves in prior art because of mill feeding end poor sealing, the problem causing ore pulp seepage, it is provided that a kind of mining grinding mill feed pipe outer sealing device。
The present invention solves that the technical scheme that the problems referred to above adopt is: mining grinding mill feed pipe outer sealing device, the end of described grinding machine is provided with the quill shaft with bushing for feeding, one end of described feed pipe is inserted in this bushing for feeding, described sealing device is fixedly mounted on the ring flange of bushing for feeding, and rotate with the rotation of quill shaft, this sealing device is by inner seal ring, the sealing ring of exterior seal ring and impeller snap ring compound seal positioned there between, seal ring set is located on the outer peripheral face of feed pipe, the top of feed pipe offers back material hole corresponding to the position of impeller snap ring, the inwall side face of described impeller snap ring is provided with scrapes, for being rotated by the ore pulp breaking through inner seal ring, the internal tooth returning in back material hole。
Sealing device in the present invention adopts elastomeric material to make, it is ensured that feed pipe is installed to the propelling within grinding machine and is not blocked；And in sealing device, the tip diameter of internal tooth is identical with feed pipe external diameter in impeller snap ring, even if impeller snap ring internal tooth creates abrasion, it still is able to play the effect of rotary dial ore pulp。
On described feed pipe, the position corresponding to inner seal ring is provided with reeded boss, and the afterbody of inner seal ring is provided with the arc adapted with groove shapes and triggers portion。This arc triggers portion it can be avoided that the ore pulp of grinding machine internal leak directly washes away the contact surface of inner seal ring and feed pipe, effectively alleviates the seepage abrasion of ore pulp on contact surface。In the present invention, owing to sealing ring rotates with quill shaft, and feed pipe is static not turn, in sealing ring rotation process, inner seal ring is inevitable with the abrasion of the contact site of feed pipe outer peripheral face, but the impeller snap ring arranged is in rotary course, it is possible to being scraped by the ore pulp leaked out after being worn and torn by inner seal ring and return in back material hole, ore pulp is returned to inside grinding machine by feed back aperture feed pipe inner chamber。
The outer peripheral face of feed pipe is provided with the positioning boss between exterior seal ring and impeller snap ring, it is possible to avoid not yet passing back material hole and return the ore pulp of grinding machine and break through the defence of last exterior seal ring and seepage。
Further, described feed pipe is made up of inner and outer tubes, and the top of inner and outer tubes all offers back material hole corresponding to the position of impeller snap ring, and the back material hole that interior pipe top is offered is wedge shaped。In the present invention, the back material hole on interior pipe is wedge shaped, it is possible to avoid the Ore of the interior pipe through feed pipe to block back material hole。
Beneficial effect: sealing device is by the sealing ring of inner seal ring, exterior seal ring and impeller snap ring compound seal positioned there between, and sealing ring rotates with the rotation of quill shaft, the ore pulp of seepage is acted the effect of intercepting by inner seal ring, even and if break through inner seal ring from the ore pulp of grinding machine internal leak, also the impeller snap ring being rotated rotates to be scraped in the back material hole returning to feed pipe, enter in the inner chamber of feed pipe, and in company with returning to inside grinding machine to ore deposit in inner chamber；Meanwhile, the ore pulp of seepage is also functioned to the effect of intercepting by exterior seal ring。Thus, intercept and dredge the three layers composite rotating combined and seal structure, can effectively realize the sealing of mining grinding mill feed end, stop ore pulp to overflow to outside grinding machine。
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention；
Fig. 2 is the enlarged diagram indicating A in Fig. 1；
Fig. 3 is the side view of impeller snap ring in Fig. 2。
Accompanying drawing labelling: 1, feed pipe, 101, outer tube, 102, interior pipe, 2, ring flange, 3, sealing device, 301, inner seal ring, 302, impeller snap ring, 303, exterior seal ring, 4, internal tooth, 5, outside circle, 6, bolt, 7, back material hole, 8, groove, 9, boss, 10, arc trigger portion, 11, positioning boss, 12, pressing plate。
Detailed description of the invention
As depicted in figs. 1 and 2, mining grinding mill feed pipe outer sealing device, the end of described grinding machine is provided with the quill shaft with bushing for feeding, one end of described feed pipe is inserted in this bushing for feeding, as shown in Figure 2, sealing device 3 is fixedly mounted on the ring flange 2 of mill feeding lining by being fixed with the pressing plate 12 of bolt 6, and rotates with the rotation of quill shaft。And feed pipe 1 is static not turn。This sealing device 3 is that seal ring set is located on the outer peripheral face of feed pipe 1 by the sealing ring of inner seal ring 301, exterior seal ring 303 and impeller snap ring 302 compound seal positioned there between。The corresponding three layers compound sealing structure respective design of feed pipe 1, realizes the sealing of mining grinding mill feed end jointly。
Sealing device 3 adopts three layers composite rotating to seal structure, and have back material hole 7 on static feed pipe 1 top corresponding to the impeller snap ring 302 in the middle of three layers compound sealing structure, as it is shown on figure 3, the inwall side face of impeller snap ring 302 is provided with scrapes, for being rotated by the ore pulp breaking through inner seal ring 301, the internal tooth 4 returned in back material hole 7。In in feed pipe 1, the back material hole on pipe 102 is designed to wedge shape, it is possible to stop the Ore through feed pipe 1 to block back material hole。Inner seal ring 301 abuts the ring flange 2 of bushing for feeding, exterior seal ring 303 abutting plate 12, on the outer wall of feed pipe 1, the inner seal ring 301 of corresponding three layers compound sealing structure and exterior seal ring 303 are provided with the boss of whole circle, as shown in Figure 2, right at the inner seal ring 301 on feed pipe 1 top, it is positioned on the outer wall full circle of feed pipe 1 and sets up the boss 9 with fluted 8, and it is designed to arc with the contact surface of inner seal ring 301, inner seal ring 301 is elastomer, the propelling following feed pipe 1 is installed, the afterbody natural torsion of inner seal ring 301 becomes the arc adapted with groove 8 shape to trigger portion 10, ore pulp thus can be avoided directly to wash away the contact surface of inner seal ring 301 and feed pipe 1, effectively alleviate the seepage abrasion of ore pulp on contact surface；The outer peripheral face of feed pipe 1 is provided with the positioning boss 11 between exterior seal ring 303 and impeller snap ring 302。
Owing to sealing device 3 is fixedly mounted on the ring flange 2 of mill trunnion, rotate with the rotation of quill shaft, and feed pipe 1 is static not turn, the afterbody abrasion of inner seal ring 301 is inevitable, in order to solve the ore pulp seepage after inner seal ring 301 afterbody weares and teares, as shown in Figure 2, left side at inner seal ring 301, it is provided with impeller snap ring 302, and above feed pipe 1, have back material hole 7, impeller snap ring 302 is in the process rotated, the ore pulp leaked out after the abrasion of inner seal ring 301 afterbody can be scraped and return to back material hole 7, ore pulp is returned to inside grinding machine through feed pipe 1 inner chamber by back material hole 7。
The three-layer sealed of sealing device 3 all adopts elastomeric material, such as rubber, it is ensured that feed pipe 1 is installed to the propelling within grinding machine and is not blocked。Even if breaking through inner seal ring 301 from the ore pulp within grinding machine, impeller snap ring 302 rotation that also can be located at intermediate layer is scraped in the inner chamber returning to feed pipe 1, and in company with returning to inside grinding machine to ore deposit in inner chamber；Meanwhile, positioning boss 11 also can be avoided not yet passing back material hole 7 and returns the ore pulp of grinding machine and break through the defence of last exterior seal ring 303 and seepage；And outside circle 5 diameter of internal tooth 4 is identical with feed pipe 1 external diameter in impeller snap ring 302, even if remaining to upon wear play the effect stirring ore pulp。
In the present invention, feed pipe 1 is made up of outer tube 101 and interior pipe 102, the position of outer tube 101 impeller snap ring 302 corresponding to the top of interior pipe 102 all offers back material hole, and the back material hole that interior pipe 102 top is offered is wedge shaped, it is possible to prevent the Ore through feed pipe 1 from blocking back material hole。
Claims (2)
1. mining grinding mill feed pipe outer sealing device, the end of described grinding machine is provided with the quill shaft with bushing for feeding, one end of described feed pipe is inserted in this bushing for feeding, described sealing device (3) is fixedly mounted on the ring flange (2) of bushing for feeding, and rotate with the rotation of quill shaft, it is characterized in that: this sealing device (3) is by inner seal ring (301), the sealing ring of exterior seal ring (303) and impeller snap ring (302) compound seal positioned there between, seal ring set is located on the outer peripheral face of feed pipe (1), the top of feed pipe (1) offers back material hole (7) corresponding to the position of impeller snap ring (302), the inwall side face of described impeller snap ring (302) is provided with scrapes, for being rotated by the ore pulp breaking through inner seal ring (301), the internal tooth (4) returned in back material hole (7), described sealing device (3) adopts elastomeric material to make, and outside circle (5) diameter of internal tooth (4) is identical with feed pipe (1) external diameter in impeller snap ring (302), described feed pipe (1) is provided with the boss (9) of fluted (8) corresponding to the position of inner seal ring (301), the afterbody of inner seal ring (301) is provided with the arc adapted with groove (8) shape and triggers portion (10), the outer peripheral face of feed pipe (1) is provided with the positioning boss (11) between exterior seal ring (303) and impeller snap ring (302)。
2. mining grinding mill feed pipe outer sealing device according to claim 1, it is characterized in that: described feed pipe (1) is made up of outer tube (101) and interior pipe (102), the top of outer tube (101) and interior pipe (102) all offers back material hole corresponding to the position of impeller snap ring (302), and the back material hole that interior pipe (102) top is offered is wedge shaped。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410200728.9A CN103990516B (en) | 2014-05-14 | 2014-05-14 | Mining grinding mill feed pipe outer sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410200728.9A CN103990516B (en) | 2014-05-14 | 2014-05-14 | Mining grinding mill feed pipe outer sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103990516A CN103990516A (en) | 2014-08-20 |
| CN103990516B true CN103990516B (en) | 2016-06-22 |
Family
ID=51304993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410200728.9A Expired - Fee Related CN103990516B (en) | 2014-05-14 | 2014-05-14 | Mining grinding mill feed pipe outer sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103990516B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2039593U (en) * | 1988-12-03 | 1989-06-21 | 彭文显 | Leakage-preventing mill |
| US5000462A (en) * | 1990-01-31 | 1991-03-19 | Foster Wheeler Energy Corporation | Sealing assembly for a ball mill pulverizer |
| DE19542563A1 (en) * | 1995-11-15 | 1997-05-22 | Flender A F & Co | Device for sealing a protective hood of a mill body |
| CN2404585Y (en) * | 1999-10-27 | 2000-11-08 | 田兵堂 | Sealing structure of feeding and discharging ports of mill |
| CN201263992Y (en) * | 2008-08-27 | 2009-07-01 | 济南重工股份有限公司 | System for sealing feeding of wet-type ball mill |
| CN101703954A (en) * | 2009-11-24 | 2010-05-12 | 沈阳重型机械集团有限责任公司 | Feeding circulation combined sealing device of wet type ball mill |
| CN102357382A (en) * | 2011-08-26 | 2012-02-22 | 北方重工集团有限公司 | Dual sealing device for feeding of ball mill |
| CN203874850U (en) * | 2014-05-14 | 2014-10-15 | 洛阳诚创耐磨材料有限公司 | Outer sealing device for feed pipe of mineral mill |
-
2014
- 2014-05-14 CN CN201410200728.9A patent/CN103990516B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN103990516A (en) | 2014-08-20 |
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Granted publication date: 20160622 |