CN210265843U - Sealed stationary ring for coal grinding device - Google Patents
Sealed stationary ring for coal grinding device Download PDFInfo
- Publication number
- CN210265843U CN210265843U CN201920398728.2U CN201920398728U CN210265843U CN 210265843 U CN210265843 U CN 210265843U CN 201920398728 U CN201920398728 U CN 201920398728U CN 210265843 U CN210265843 U CN 210265843U
- Authority
- CN
- China
- Prior art keywords
- ring
- annular
- sealing ring
- flange
- sealing
- 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
Images
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model belongs to the coal pulverizer field, especially, coal grinding device is with sealed quiet ring, to the lower problem of current sealed quiet ring life of coal grinding, the scheme as follows is put forward now, it includes solid fixed ring and sealing ring, gu fixed ring's up end is equipped with the annular, the lateral wall of sealing ring is equipped with along the flange of radial setting, the lateral wall of sealing ring is equipped with the external screw thread, the flange divide into first external screw thread and second external screw thread with the external screw thread, the inner wall of annular is equipped with the internal thread with thread fit, the top end face and the bottom terminal surface of sealing ring all are equipped with the annular seal groove, the flange inboard is equipped with annular notch, the flange is provided with a plurality of through-holes along circumference, gu fixed ring's up end is equipped with the screw hole that corresponds the. The utility model discloses the effectual life who improves sealed quiet ring, the secondary use of being convenient for has improved the leakproofness of sealed quiet ring, the use cost of the quiet ring of effectual reduction.
Description
Technical Field
The utility model relates to a coal pulverizer technical field especially relates to a coal grinding device is with sealed quiet ring.
Background
During the working process of the coal mill, the coal blocks fall into the coal mill from a coal dropping pipe of the coal mill and roll into a lining plate of the coal mill, and a transmission shaft of the coal mill drives a movable ring and the lining plate to rotate in the horizontal direction, so that the grinding rollers on the lining plate roll in a lining plate groove, and the coal blocks in the lining plate groove are pressed into coal powder. The pulverized coal is taken away by hot primary air sprayed from the bottom to the top from the nozzle of the driven ring and is sent to a boiler for combustion through a pipeline. In the process of taking away the pulverized coal by the sprayed hot primary air, a coal block and pulverized coal hot air mixed turbulent flow region is inevitably formed at the movable ring and the stationary ring, the sealing surface of the stationary ring is abraded, when one end of the conventional stationary ring is seriously abraded, the stationary ring needs to be replaced, the service life of the stationary ring is short, and the use cost of the stationary ring is increased.
Disclosure of Invention
The utility model provides a pair of coal grinding device is with sealed quiet ring has solved the lower problem of sealed quiet ring life for the coal grinding.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a coal-grinding device is with sealed quiet ring, includes solid fixed ring and sealing ring, gu fixed ring and sealing ring are annular columnar structure, gu fixed ring's up end is equipped with the annular, the lateral wall of sealing ring is equipped with along the flange that radially sets up, the lateral wall of sealing ring is equipped with the external screw thread, the flange divide into first external screw thread and second external screw thread with the external screw thread, the inner wall of annular is equipped with the internal thread with thread fit, the top end face and the bottom end face of sealing ring all are equipped with annular seal groove, the flange inboard is equipped with annular breach, the flange is provided with a plurality of through-holes along circumference, gu fixed ring's up end is equipped with the screw hole that corresponds the setting with the through.
Preferably, the flange is of an annular structure, the flange and the sealing ring are coaxially arranged, and the flange is located in the middle between two end faces of the sealing ring.
Preferably, a first sealing ring is arranged in the annular sealing groove.
Preferably, the annular gap is provided with two, the two annular gaps are respectively located on the upper end face and the lower end face of the flange, and a second sealing ring is arranged in the annular gap.
Preferably, the fixing ring and the sealing ring are coaxially arranged, and the bottom of the pin rod is provided with an outer thread which corresponds to the threaded hole.
The utility model discloses in, the setting of the ring seal groove that sealing ring up end and lower terminal surface set up and first sealing washer, two terminal surfaces all can regard as sealed face to use, through the setting of first external screw thread and second external screw thread and annular, the installation and the dismantlement of the sealing ring of being convenient for make things convenient for the reutilization of sealing ring, the setting of annular breach and second sealing washer, cooperate with first sealing washer, reach secondary seal's effect, improve sealed effect, the setting of screw hole, pin pole and through-hole, many sealing rings play fixed effect.
The utility model discloses the effectual life who improves sealed quiet ring, the secondary use of being convenient for has improved the leakproofness of sealed quiet ring, the use cost of the quiet ring of effectual reduction.
Drawings
Fig. 1 is a schematic structural view of a sealing stationary ring for a coal grinding device according to the present invention.
Fig. 2 is a schematic view of a top view structure of a flange of a sealing stationary ring for a coal grinding device according to the present invention.
Reference numbers in the figures: 1 fixed ring, 2 sealing rings, 3 annular grooves, 4 second sealing rings, 5 pin rods, 6 annular sealing grooves, 7 first sealing rings, 8 first external threads, 9 annular notches, 10 flanges, 11 threaded holes, 12 second external threads and 13 through holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a sealing stationary ring for a coal grinding device comprises a fixing ring 1 and a sealing ring 2, wherein the fixing ring 1 and the sealing ring 2 are of annular columnar structures, an annular groove 3 is formed in the upper end face of the fixing ring 1, a flange 10 arranged along the radial direction is arranged on the outer side wall of the sealing ring 2, external threads are arranged on the outer side wall of the sealing ring 2, the external threads are divided into a first external thread 8 and a second external thread 12 by the flange 10, internal threads matched with the external threads are arranged on the inner wall of the annular groove 3, annular sealing grooves 6 are formed in the top end face and the bottom end face of the sealing ring 2, an annular notch 8 is formed in the inner side of the flange 10, a plurality of through holes 13 are formed in the flange 10 along the circumferential direction, a; the flange 10 is of an annular structure, the flange 10 and the sealing ring 2 are coaxially arranged, and the flange 10 is located in the middle between two end faces of the sealing ring 2; a first sealing ring 7 is arranged in the annular sealing groove 6; two annular gaps 9 are arranged, the two annular gaps 9 are respectively positioned on the upper end surface and the lower end surface of the flange 10, and a second sealing ring 4 is arranged in each annular gap 9; the fixing ring 1 and the sealing ring 2 are coaxially arranged, and the bottom of the pin rod 5 is provided with an outer thread which corresponds to the threaded hole 11.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The working principle is as follows: when the sealing ring is used, the sealing ring 2 is connected in the annular groove 3 through the thread of the outer side wall, then the flange 10 is fixed with the fixing ring 1 through the pin rod 5, the flange 10 and the sealing ring 2 are integrally formed, the pin rod 5 is arranged to facilitate locking of the sealing ring 2 and avoid relative sliding between the sealing ring 2 and the fixing ring 1, the annular sealing groove 6 and the first sealing ring 7 are arranged, a sealing surface is formed between the bottom of the annular groove 3 and the bottom of the sealing ring 2 to play a role in sealing, a certain sealing effect is played through the external thread of the outer wall of the sealing ring 2 and the internal thread of the inner wall of the annular groove 3, the annular notch 9 and the second sealing ring 4 are arranged to play a role in secondary sealing, the sealing effect is good, when the end face of the sealing ring 2 is worn, the end face without wear is replaced and is connected with the fixing ring 1 through the, the service life of the sealing ring is prolonged, and the mounting and dismounting are convenient.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a coal-grinding device is with sealed quiet ring, includes solid fixed ring (1) and sealing ring (2), its characterized in that, gu fixed ring (1) and sealing ring (2) are annular columnar structure, gu the up end of fixed ring (1) is equipped with annular (3), the lateral wall of sealing ring (2) is equipped with along flange (10) of radial setting, the lateral wall of sealing ring (2) is equipped with the external screw thread, flange (10) divide into first external screw thread (8) and second external screw thread (12) with the external screw thread, the inner wall of annular (3) is equipped with the internal thread with thread fit, the top terminal surface and the bottom terminal surface of sealing ring (2) all are equipped with annular seal groove (6), flange (10) inboard is equipped with annular breach (9), flange (10) are provided with a plurality of through-holes (13) along circumference, gu the up end of fixed ring (1) is equipped with screw hole (11), and the through hole (13) and the threaded hole (11) are internally connected with a pin rod (5).
2. The static sealing ring for the coal grinding device according to claim 1, wherein the flange (10) is of an annular structure, the flange (10) and the sealing ring (2) are coaxially arranged, and the flange (10) is located at a middle position between two end faces of the sealing ring (2).
3. The static sealing ring for a coal mill according to claim 1, characterized in that a first sealing ring (7) is arranged in the annular sealing groove (6).
4. The sealing stationary ring for the coal grinding device according to claim 1, characterized in that there are two annular notches (9), two annular notches (9) are respectively located on the upper end face and the lower end face of the flange (10), and a second sealing ring (4) is arranged in the annular notch (9).
5. The sealing stationary ring for the coal grinding device according to claim 1, characterized in that the fixing ring (1) and the sealing ring (2) are coaxially arranged, and the bottom of the pin rod (5) is provided with an outer thread arranged corresponding to the threaded hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920398728.2U CN210265843U (en) | 2019-03-27 | 2019-03-27 | Sealed stationary ring for coal grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920398728.2U CN210265843U (en) | 2019-03-27 | 2019-03-27 | Sealed stationary ring for coal grinding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210265843U true CN210265843U (en) | 2020-04-07 |
Family
ID=70021171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920398728.2U Expired - Fee Related CN210265843U (en) | 2019-03-27 | 2019-03-27 | Sealed stationary ring for coal grinding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210265843U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114887750A (en) * | 2022-03-21 | 2022-08-12 | 华能武汉发电有限责任公司 | Concatenation formula coal supporting disc for ring type coal feeder |
-
2019
- 2019-03-27 CN CN201920398728.2U patent/CN210265843U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114887750A (en) * | 2022-03-21 | 2022-08-12 | 华能武汉发电有限责任公司 | Concatenation formula coal supporting disc for ring type coal feeder |
| CN114887750B (en) * | 2022-03-21 | 2023-11-03 | 华能武汉发电有限责任公司 | Concatenation formula holds coal dish for ring type feeder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203972042U (en) | A kind of two-way gap coal pulverizer nozzle ring | |
| CN210265843U (en) | Sealed stationary ring for coal grinding device | |
| CN102343296A (en) | Grinding roller sealing device for vertical roller mill | |
| CN2911302Y (en) | Bearing for narrow steel strip rolling mill | |
| CN109702917B (en) | Detachable wear-resisting ring sealing device of internal mixer | |
| CN203610162U (en) | Elastic annular side baffle for roller press | |
| CN210321244U (en) | Supporting device for circular cooler | |
| CN205260611U (en) | Replaceable type bearing | |
| CN211865219U (en) | Cooling water sleeve mounting structure of roller press | |
| CN210531235U (en) | Mounting structure convenient to wear ring dismantles | |
| CN108457995B (en) | Quick-separating coupler | |
| CN208202790U (en) | A kind of flexible linking device for guardrail | |
| CN207485847U (en) | A kind of high hub bearing of greasy property | |
| CN102606473B (en) | Adaptive concrete piston and concrete conveying device | |
| CN210608852U (en) | Motor bearing gland structure | |
| CN219827503U (en) | Grooved roll split flange of noodle rolling machine | |
| CN203686136U (en) | Groove body end plate sealing device | |
| CN202674710U (en) | Coal mill discharging pipe with wear-resistant structure | |
| CN208074043U (en) | A kind of out star wheel roller clutch on fluid torque-converter | |
| CN214534035U (en) | Tapered roller bearing with wide flange | |
| CN107999208B (en) | Coal pulverizer pull rod sealing device | |
| CN219702227U (en) | Device for reducing dynamic and static gap abrasion and air leakage of air ring of medium-speed coal mill | |
| CN219388853U (en) | Internal pipe network layout structure of building | |
| CN204170817U (en) | A kind of disintegrating machine dust ring | |
| CN203656189U (en) | Main shaft seal structure of water turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200407 Termination date: 20210327 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |