CN202967386U - Sealing device for coal ash screw conveyer - Google Patents
Sealing device for coal ash screw conveyer Download PDFInfo
- Publication number
- CN202967386U CN202967386U CN2012206232297U CN201220623229U CN202967386U CN 202967386 U CN202967386 U CN 202967386U CN 2012206232297 U CN2012206232297 U CN 2012206232297U CN 201220623229 U CN201220623229 U CN 201220623229U CN 202967386 U CN202967386 U CN 202967386U
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- sealing
- main shaft
- bearings
- seal ring
- sealing device
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Abstract
The utility model provides a sealing device for a coal ash screw conveyer. The device comprises bearings which are distributed along the outer circumference of a main shaft, and glands above the bearings, and is characterized in that sealing gear sleeves are arranged between the side walls of the bearings and the main shaft; the inner walls of the sealing gear sleeves are contacted with the main shaft; the outer walls of the sealing gear sleeves are provided with a plurality of annular sealing teeth; sealing rings matched with the annular sealing teeth are arranged between adjacent annular sealing teeth; reeds are arranged between the sealing rings and the sealing gear sleeves; and the reeds are used for pressing the sealing rings towards the side walls of the bearings. According to the sealing device provided by the utility model, a plurality of sealing rings and sealing gear sleeves are used for sealing the coal ash screw conveyer together, and meanwhile, coal ash is further prevented from entering the bearings by using piston type sealing rings. When the main shaft is worn after running for a long time, the reeds can be used for compensating the wear of the sealing rings, the sealing rings can still keep sealing effects, and the bearings are protected. The sealing device has the advantages of simple structure, low cost and high practicability.
Description
Technical field
The utility model relates to coal gasification production facilities field, specifically refers to a kind of coal powder spiral conveyor sealing device.
Background technology
Existing coal gasification production technique comprises defeated one step of coal, feed coal to be ground to form coal dust by coal mill be transported to large cloth bag, again the coal dust of large cloth bag is transported to the fine coal storehouse by conveyor screw, the coal dust of final powder coal bunker is transported to the powder coal gasification furnace burning again through pressurization.Wherein, conveyor screw in main shaft periphery to the gland that is provided with above bearing and bearing, then adopt filler to seal in the space of bearing and main shaft, due to long-term operation, causing the main shaft of screw conveyor wearing and tearing. the wearing and tearing of main shaft have unrepairable at the scene, and then cause the inefficacy of conveyor screw sealing.The coal dust of seal leakage enters bearing, causes bearing to damage in very short time internal cause wearing and tearing, needs to stop and send the machine repair shop maintenance, and the average cycle of run of every conveyor screw was reduced to about 20 days.Maintenance, increased the production maintenance cost frequently, caused the standby host hidden danger of equipment, and equipment and production are caused great threat.
Summary of the invention
The purpose of this utility model is to provide a kind of coal powder spiral conveyor sealing device according to above-mentioned deficiency, and this coal powder spiral conveyor sealing device good seal performance can be protected the wearing and tearing of main shaft and bearing, increases the cycle of run of conveyor screw, Decrease production cost.
The utility model is achieved by the following technical solution:
A kind of coal powder spiral conveyor sealing device, described device comprises along the bearing of main shaft excircle layout and the gland above bearing, it is characterized in that: be provided with sealing tooth cover between the sidewall of bearing and main shaft, the inwall of sealing tooth cover contacts with main shaft, outer wall is provided with some annular seal teeth, be provided with the seal ring that coordinates with it between adjacent annular seal tooth, also be provided with reed between described seal ring and sealing tooth cover, reed compresses seal ring to the bearing sidewall.
Preferably, be provided with some seal rings between described sealing tooth cover and main shaft.
Preferably, described seal ring is the piston type seal ring.
Preferably, the head of described sealing tooth cover also is provided with sealing member between gland and sealing tooth cover between gland and main shaft.
Preferably, the material of described seal ring is polyetheretherketone.
Sealing arrangement of the present utility model is that the main shaft to the coal powder spiral conveyer seals.Structure with sealing tooth cover replaces original packing seal.Utilize several seal rings and sealing tooth cover together to the sealing of coal powder spiral conveyer, utilize simultaneously the piston type seal ring to prevent that further coal dust from entering in bearing.And when long-time running made spindle abrasion, the abrasion loss of all right compensation sealing ring of reed made seal ring still can keep sealing effectiveness, thereby continued the protection bearing.The utility model is simple in structure, and cost is low, and practicality is good.
Description of drawings
Fig. 1 is the utility model sealing arrangement schematic diagram;
Fig. 2 is existing sealing arrangement schematic diagram;
1. main shaft, 2. bearing, 3. gland, 4. sealing tooth cover, 5. annular seal tooth, 6. seal ring, 7. reed, 8. piston type seal ring, 9. sealing member, 10. filler.
The specific embodiment
Further illustrate the utility model below in conjunction with accompanying drawing:
As shown in Figure 1 and Figure 2, coal powder spiral conveyor sealing device of the present utility model has substituted original mode that seals by filler 10.It comprises the gland 3 of the bearing 2 arranged along the excircle of main shaft 1 and bearing 2 tops.Be provided with sealing tooth cover 4 between the sidewall of bearing 2 and main shaft 1, the inwall of sealing tooth cover 4 contacts with main shaft 1, outer wall is provided with some annular seal teeth 5, be provided with the seal ring 6 that coordinates with it between adjacent annular seal tooth 5, also be provided with reed 7 between described seal ring 6 and sealing tooth cover 4, reed 7 compresses the sidewall of seal ring 6 to bearing 2, realize the effect of sealing, when guaranteeing simultaneously main shaft 1 wearing and tearing, reed 7 can the compensate for wear amount, continuation compresses the sidewall of seal ring 6 to bearing 2, guarantees sealing effectiveness.The head of sealing tooth cover 4 is provided with sealing member 9 between gland 3 and sealing tooth cover 4 between gland 3 and main shaft 1.Sealing tooth cover 4 and 1, main shaft are provided with some piston type seal rings 8.The material of seal ring 6 is polyetheretherketone.This material can strengthen the abrasive resistance of seal ring 6.
After implementing the utility model, the coal powder spiral conveyer is through the operation test, and sealing effectiveness is respond well.The cycle of run of coal powder spiral conveyer is greatly improved, and reaches more than 200 days.Substantially in the time of can reaching the average cycle of run of spindle abrasion, sealing arrangement still keeps good leak tightness, satisfies need of production fully.
After implementing the utility model, the cycle of run of coal powder spiral conveyer calculated by 6 months, reduced by 0.5 ten thousand yuan of recondition expenses, 30,000 yuan of parts replacement expenses, 6.5 ten thousand yuan of year direct economic benefits.Year direct economic benefit=2 times/year * 30,000 yuan+0.5 ten thousand yuan=6.5 ten thousand yuan/year.Greatly provide cost savings, have good practicality.
The above is only preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. coal powder spiral conveyor sealing device, described device comprises along the bearing of main shaft excircle layout and the gland above bearing, it is characterized in that: be provided with sealing tooth cover between the sidewall of bearing and main shaft, the inwall of sealing tooth cover contacts with main shaft, outer wall is provided with some annular seal teeth, be provided with the seal ring that coordinates with it between adjacent annular seal tooth, also be provided with reed between described seal ring and sealing tooth cover, reed compresses seal ring to the bearing sidewall.
2. coal powder spiral conveyor sealing device according to claim 1, is characterized in that: be provided with some seal rings between described sealing tooth cover and main shaft.
3. coal powder spiral conveyor sealing device according to claim 2, it is characterized in that: described seal ring is the piston type seal ring.
4. coal powder spiral conveyor sealing device according to claim 1, it is characterized in that: the head of described sealing tooth cover is between gland and main shaft, and gland also is provided with sealing member between overlapping with the sealing tooth.
5. coal powder spiral conveyor sealing device according to claim 1, it is characterized in that: the material of described seal ring is polyetheretherketone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206232297U CN202967386U (en) | 2012-11-22 | 2012-11-22 | Sealing device for coal ash screw conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206232297U CN202967386U (en) | 2012-11-22 | 2012-11-22 | Sealing device for coal ash screw conveyer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202967386U true CN202967386U (en) | 2013-06-05 |
Family
ID=48508492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206232297U Expired - Fee Related CN202967386U (en) | 2012-11-22 | 2012-11-22 | Sealing device for coal ash screw conveyer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202967386U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358858A (en) * | 2014-10-21 | 2015-02-18 | 太原理工大学 | Multi-lip framework type oil sealing device |
| CN105731007A (en) * | 2016-04-27 | 2016-07-06 | 韦国思 | Tile hanger sealing structure of screw conveyer of coal mill |
| CN112682348A (en) * | 2020-12-18 | 2021-04-20 | 山东省章丘鼓风机股份有限公司 | Expansion ring, main shaft sealing structure and fan |
-
2012
- 2012-11-22 CN CN2012206232297U patent/CN202967386U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358858A (en) * | 2014-10-21 | 2015-02-18 | 太原理工大学 | Multi-lip framework type oil sealing device |
| CN105731007A (en) * | 2016-04-27 | 2016-07-06 | 韦国思 | Tile hanger sealing structure of screw conveyer of coal mill |
| CN112682348A (en) * | 2020-12-18 | 2021-04-20 | 山东省章丘鼓风机股份有限公司 | Expansion ring, main shaft sealing structure and fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Xingyi Century Technology Co., Ltd. Assignor: Hubei Shuanghuan Science and Technology Stock Co., Ltd. Contract record no.: 2013420000130 Denomination of utility model: Sealing device for spiral coal dust conveyer Granted publication date: 20130605 License type: Exclusive License Record date: 20130814 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20151122 |
|
| EXPY | Termination of patent right or utility model |