CN202063932U - Airtight box for blast furnace - Google Patents
Airtight box for blast furnace Download PDFInfo
- Publication number
- CN202063932U CN202063932U CN201120126649XU CN201120126649U CN202063932U CN 202063932 U CN202063932 U CN 202063932U CN 201120126649X U CN201120126649X U CN 201120126649XU CN 201120126649 U CN201120126649 U CN 201120126649U CN 202063932 U CN202063932 U CN 202063932U
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- CN
- China
- Prior art keywords
- airtight box
- blast furnace
- down gear
- fascinates
- speed reducer
- 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.)
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to an airtight box for a blast furnace. The airtight box comprises a rotary drum, a central throat opening, a planetary differential speed reducer and a tilting speed reducer, wherein the central throat opening is arranged in the middle of the rotary drum, the tilting speed reducer is arranged on two sides of the central throat opening and connected with the planetary differential speed reducer through a reverse gear, and two auxiliary oil tanks are arranged on a rotating chassis on the rotary drum and connected with the tilting speed reducer through an oil conveying pipeline and a regulating valve. The airtight box can stably operate for one maintenance cycle, and the major production accident of abnormal equipment halt caused by oil leak is avoided.
Description
Technical field
The utility model relates to the blast furnace field, particularly relates to a kind of blast furnace airtight box.
Background technology
Blast furnace furnace roof equipment airtight box (blast furnace bell-less furnace roof nucleus equipment), its external form as shown in Figure 1, this airtight box each side has the turbine and worm speed reducer device that fascinates, and is used for controlling the variation of distributor chute turning angle.The airtight box step-down gear transmission mechanism control principle of fascinating: when the action of airtight box exoplanet different gear reducer, the power input is provided after, big swiveling gear drives worm and gear control in two cabinets axle that fascinates and rotates, and changes turning angle thereby drive distributor chute.Worm and gear and fuel tank one mesh oil bath lubrication certainly.Worm bearing is taked the mechanical lubrication of spindle nose pump.
The blast furnace airtight box worm and gear step-down gear that fascinates stands cabinet leakage of oil problem puzzlement for a long time.Though through repeatedly between day, turn(a)round, to all outsides such as cabinet weld seam, each trim, rotating shaft head, bolt connection relate to the sealing and easy leakage position check, really can't detect concrete leakage position, even the later stage has been carried out leakproof packing processing also to no effect to the external spindle nose pump in two cabinets bottom.Under the unusual situation of leaking of the existing cabinet that fascinates, avoid the great industrial accident that causes unit exception to shut down because of the leakage of oil problem.Because airtight box belongs to blast furnace core, category-A production unit, in case step-down gear burns, change overlong time, production causes great effect to blast furnace.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of blast furnace airtight box, can a turnaround of steady running (more than three months), avoid the great industrial accident that causes unit exception to shut down because of the leakage of oil problem.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of blast furnace airtight box is provided, comprises rotor, center aditus laryngis, planetary differential step-down gear and the step-down gear that fascinates; Be provided with described center aditus laryngis in the middle of the described rotor; Aditus laryngis both sides, described center are equipped with the described step-down gear that fascinates; The described step-down gear that fascinates links to each other with described planetary differential step-down gear by swiveling gear, and two cover service tanks are installed on the swivel base on the described rotor; Described service tank links to each other with the described step-down gear that fascinates with variable valve by pipeline road.
Described service tank top is provided with equal pressure device of air and air filter.
Beneficial effect
Owing to adopted above-mentioned technical scheme, the utility model compared with prior art, have following advantage and positively effect: the utility model has solved in a turnaround (three months), blast furnace does not need to stop production, guarantee in the service tank that lubricating oil all mends the worm and gear step-down gear cabinet that fascinates, once (needed 8 hours approximately) and originally need to stop production in one month, to have guaranteed the blast furnace continuous production, airtight box steady running after using this device.The utility model is easy to manufacture, and is easy to use, can save 2 stopping productions of blast furnace in three months, and promptly 2*8=16 hour, with 2500M
3Blast furnace is an example, can produce more 250 tons of iron of 16 hours */hour=4000 tons of iron, benefit is obvious.
Description of drawings
Fig. 1 is the structural representation of blast furnace airtight box in the prior art;
Fig. 2 is a structural representation of the present utility model.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment of the present utility model relates to a kind of blast furnace airtight box, as shown in Figure 2, comprises rotor 1, center aditus laryngis 2, planetary differential step-down gear 3 and the step-down gear 4 that fascinates; Be provided with described center aditus laryngis 2 in the middle of the described rotor 1; Aditus laryngis 2 both sides, described center are equipped with the described step-down gear 4 that fascinates; The described step-down gear 4 that fascinates links to each other with described planetary differential step-down gear 3 by swiveling gear 5, and two cover service tanks 6 are installed on the swivel base on the described rotor 1; Described service tank 6 links to each other with the described step-down gear 4 that fascinates with variable valve by pipeline road, service tank 6 is fixedly welded on the swivel base on the rotor 1, can be with swivel base run-in synchronism, re-using hard tube and variable valve is communicated with it with the step-down gear 4 that fascinates, thereby realize the main gear reducer repairing, the repairing flow is finished by variable valve.Wherein, service tank 6 can calculate the repairing flow, by-pass valve control aperture, reasonable Arrangement fuel tank, the repairing rake of tubes, installation position and interface size in conjunction with leakage of oil in early stage situation.Equal pressure device of air and air filter are arranged at service tank 6 tops.Service tank 6 is provided with certain angle by design requirements, and the centrifugal force when overcoming rotation guarantees maximum fuel delivery simultaneously.
Further specify the beneficial effects of the utility model with a specific examples below.
After the 1# of Ningbo Iron and Steel Co blast furnace uses the utility model, twice pair of airtight box checked comprehensively in 8 months, check result is good, each web member of service tank connects normal, non-loosening, with inner other the non-running position of airtight box without any scraping, about two step-down gear tank lubrication fluid pastas that fascinate still can immerse about scale foot 30mm, fully normal, the cabinet of going into to fascinate is all mended in the service tank oil storage.Worm gear gear teeth abrasion loss is not seen increase tendency in the cabinet, can effectively alleviate the equipment (hidden danger) that the step-down gear fuel tank that fascinates at present leaks existence unusually, and the happen suddenly substantial equipment industrial accident of online shutdown of this equipment scaling loss is avoided in the safe operation of support equipment.The utility model effect is quite desirable, has promotional value in other blast furnaces.
Claims (2)
1. a blast furnace airtight box comprises rotor (1), center aditus laryngis (2), planetary differential step-down gear (3) and the step-down gear that fascinates (4); Be provided with described center aditus laryngis (2) in the middle of the described rotor (1); Described center aditus laryngis (2) both sides are equipped with the described step-down gear that fascinates (4); The described step-down gear that fascinates (4) links to each other with described planetary differential step-down gear (3) by swiveling gear (5), it is characterized in that, two cover service tanks (6) are installed on the swivel base on the described rotor (1); Described service tank (6) links to each other with the described step-down gear that fascinates (4) with variable valve by pipeline road.
2. blast furnace airtight box according to claim 1 is characterized in that, described service tank (6) top is provided with equal pressure device of air and air filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120126649XU CN202063932U (en) | 2011-04-27 | 2011-04-27 | Airtight box for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120126649XU CN202063932U (en) | 2011-04-27 | 2011-04-27 | Airtight box for blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202063932U true CN202063932U (en) | 2011-12-07 |
Family
ID=45057801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120126649XU Expired - Fee Related CN202063932U (en) | 2011-04-27 | 2011-04-27 | Airtight box for blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202063932U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104611493A (en) * | 2015-02-12 | 2015-05-13 | 中冶南方工程技术有限公司 | Inner mechanical lubrication system of blast furnace distributor |
-
2011
- 2011-04-27 CN CN201120126649XU patent/CN202063932U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104611493A (en) * | 2015-02-12 | 2015-05-13 | 中冶南方工程技术有限公司 | Inner mechanical lubrication system of blast furnace distributor |
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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: 20111207 Termination date: 20150427 |
|
| EXPY | Termination of patent right or utility model |