CN201241080Y - Maintenance manhole seal structure of rotary seal valve of dried extinguishing furnace cooling coke discharging equipment - Google Patents
Maintenance manhole seal structure of rotary seal valve of dried extinguishing furnace cooling coke discharging equipment Download PDFInfo
- Publication number
- CN201241080Y CN201241080Y CNU2008200673425U CN200820067342U CN201241080Y CN 201241080 Y CN201241080 Y CN 201241080Y CN U2008200673425 U CNU2008200673425 U CN U2008200673425U CN 200820067342 U CN200820067342 U CN 200820067342U CN 201241080 Y CN201241080 Y CN 201241080Y
- Authority
- CN
- China
- Prior art keywords
- inspection manhole
- cover plate
- manhole cover
- inspection
- rotary seal
- 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
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Abstract
The utility model provides an Inspection manhole sealing structure of a rotary sealing valve of a dry quenching furnace cooling coke discharge device, which comprises a rotary sealing valve body bottom plate and inspection manholes thereon, an inspection manhole cover plate and a fastener, two groups of square hole lifting lugs (4) are welded at both sides of the inspection manholes (2) of the body bottom plate (1) symmetrically, a fixed pressing plate (5) is respectively inserted into each group of square hole lifting lugs, and the inspection manhole cover plate (3) is positioned between the fixed pressing plate (5) and the body bottom plate (1); and at least two threaded holes (6) are arranged in the fixed pressing plate (5), and annular lock bolts (7) lock and fasten the manhole cover plate (3) through the threaded holes (6). A pressure measuring valve (8) is disposed on the inspection manhole cover plate (3). Handles (9) are arranged at both sides of the inspection manhole cover plate (3).
Description
Technical field
The utility model relates to a kind of dried cold burnt device for transferring rotary seal valve inspection manhole sealed structure of stove that puts out, and is the dried integral part that puts out the cold burnt device for transferring of stove.
Background technology
Dry coke quenching is crucial link in the steel industry coke making process, and it has the incomparable advantage of conventional wet quenching at aspects such as improving coke quality, the recycling energy and protection environment.China begins to introduce Dry Quenching Technology from the eighties in 20th century, and this technology is comprehensively applied at present.Dry coke quenching is meant and adopts rare gas element with a kind of method of red burnt cooling refrigerative.Put out in the process dried, red Jiao packs into from the dried furnace roof that puts out, the low temperature rare gas element blasts dried putting out by recirculation blower and absorbs red burnt sensible heat in the stove, cooled coke is discharged from the dried furnace bottom that puts out, put out the high temperature inert gas that ring shape flue comes out and carry out heat exchange from dried to coke dry quenching boiler, boiler produces steam, and cooled rare gas element blasts the dried stove that puts out again by recirculation blower, and rare gas element uses at system's internal recycle of sealing.
The rotary seal valve is an important component part in the cold burnt device for transferring of the dry coke quenching unit, it is positioned at the dried furnace bottom that puts out, main effect is: the cooled coke that will quantitatively be discharged by vibratory feeder driedly puts out under the situation that stove internal recycle gas do not reveal successive discharge coke sealing to stove outside.The rotary seal valve requires resistance to air loss good, to satisfy working condition requirement.
Dried putting out enters foreign matter in the stove, in the discharge process, because rotary seal valve rotating vane and body clearance are little, easily rotating paddle is blocked after cooling, makes coke discharging equipment out of service.If can not recover normal coke discharging in 30 minutes, dry coke quenching auxiliary can't be adorned burnt and heat exchange work normally, then cause turbo-generator by forced-stopping machine, and boiler decrease temperature and pressure and steam diffuse, and postorder steam user is forced to stop production.
Driedly put out toxic and harmful (CO, the N that furnace pressure is about malleation 5000Pa
2), foreign matter be handled and 0Pa need be depressurized to, no toxic and harmful just can advance the people and handle step-down time length consuming time.
Handling failure maintainer must dismounting rotary seal valve inspection manhole door, after entering valve inner foreign matter being taken out, inspection manhole is sealed again.The original design structure formation design of inspection manhole is complicated, locks embedded enclosed construction for 25 pieces of Φ 20 bolts of periphery, opens and closes the minimum needs of manhole 2 hours.Primary fault is handled needs 4 hour time, has a strong impact on the steady running that dry coke quenching is produced.
Summary of the invention
The purpose of this utility model is to transform rotary seal valve inspection manhole, designs a kind of dried cold burnt device for transferring rotary seal valve inspection manhole sealed structure of stove that puts out, and shortens fault handling time, guarantees the steady running of dry coke quenching.
The technical solution of the utility model: the utility model comprises rotary seal valve body base plate and top inspection manhole, inspection manhole cover plate and fastening piece thereof, it is characterized in that: the inspection manhole zygomorphy is welded two prescription hole hangers on the body base plate, insert fixation clip respectively in the hanger of every prescription hole, the inspection manhole cover plate places between fixation clip and the body base plate; At least 2 screws are arranged on the fixation clip, and the ring-type securing bolt compresses the manhole plate lock solid by screw.
The described dried cold burnt device for transferring rotary seal valve inspection manhole sealed structure of stove that puts out is established pressure valve on the inspection manhole cover plate.
The described dried cold burnt device for transferring rotary seal valve inspection manhole sealed structure of stove, the inspection manhole cover plate of putting out) both sides jug.
The beneficial effects of the utility model:
After adopting the utility model, by making the dried quick step-down of stove of putting out, the step-down time was controlled in 7 minutes, and 4 pieces of bolts of dismounting only needed 10 minutes just can open and close the inspection manhole cover plate rapidly, repair time can be controlled in 30 minutes, provided favourable condition for resuming production fast.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As Fig. 1: the dried cold burnt device for transferring rotary seal valve inspection manhole sealed structure of stove inspection manhole 2 zygomorphy on body base plate 1 of putting out of the present utility model are welded 2 prescription hole hangers 4, insert fixation clip 5 respectively in the hanger of every prescription hole, inspection manhole cover plate 3 places between fixation clip 5 and the body base plate 1; At least 2 screws 6 are arranged on the fixation clip 5, and ring-type securing bolt 7 compresses manhole plate 3 locks solid by screw 6.
On inspection manhole cover plate 3, establish pressure valve 8.Inspection manhole cover plate 3 both sides jugs 9.
Inspection manhole cover plate 3 is covered after on the inspection manhole 2, in every prescription hole hanger 4, insert fixation clip 5 respectively, by ring-type securing bolt 7 inspection manhole cover plate 3 locks are compressed admittedly again, make inspection manhole cover plate 3 and 1 sealing of body base plate.
On manhole door, set up pressure valve 8,, check whether rotary seal valve composition of gases within and pressure reach the requirement of safety inspection so that before opening inspection manhole.
When opening inspection manhole, the ring-type of outwarding winding securing bolt 7 is deviate from square hole hanger 4 with an end of fixation clip 5, fixation clip 5 is taken down again.Two people hold handle 9 inspection manhole cover plate 3 are opened.
Maintenance step:
1. hand rotation rotary seal valve confirms that the rotary seal valve is stuck by foreign matter.
2. contact dry coke quenching Central Control Room reduces the recirculation blower rotating speed rapidly, guarantees that boiler working condition is stable.
3. when rotating speed reaches 350r/min, by pressure valve 8, measure rotary seal valve internal pressure, if pressure still is malleation, can puts out the stove section of prestoring pressure regulator valve and regulate pressure by opening to work energetically.
4. confirm that rotary seal valve internal pressure is little negative pressure, unclamp 4 pieces of ring-type securing bolts 7 fast, take off 2 fixation clips, open rotary seal valve inspection manhole, take out foreign matter.
5. close inspection manhole, resume production.
Claims (3)
1. dried cold burnt device for transferring rotary seal valve inspection manhole sealed structure of stove that puts out, comprise rotary seal valve body base plate and top inspection manhole, inspection manhole cover plate and fastening piece thereof, it is characterized in that: go up inspection manhole (2) zygomorphy at body base plate (1) and weld two prescription hole hangers (4), insert fixation clip (5) respectively in the hanger of every prescription hole, inspection manhole cover plate (3) places between fixation clip (5) and the body base plate (1); At least 2 screws (6) are arranged on the fixation clip (5), and ring-type securing bolt (7) compresses manhole plate (3) lock solid by screw (6).
2. the dried cold burnt device for transferring rotary seal valve inspection manhole sealed structure of stove that puts out according to claim 1 is characterized in that: establish pressure valve (8) on inspection manhole cover plate (3).
3. the dried cold burnt device for transferring rotary seal valve inspection manhole sealed structure of stove that puts out according to claim 1 and 2 is characterized in that: inspection manhole cover plate (3) both sides jugs (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200673425U CN201241080Y (en) | 2008-05-22 | 2008-05-22 | Maintenance manhole seal structure of rotary seal valve of dried extinguishing furnace cooling coke discharging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200673425U CN201241080Y (en) | 2008-05-22 | 2008-05-22 | Maintenance manhole seal structure of rotary seal valve of dried extinguishing furnace cooling coke discharging equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201241080Y true CN201241080Y (en) | 2009-05-20 |
Family
ID=40714374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200673425U Expired - Fee Related CN201241080Y (en) | 2008-05-22 | 2008-05-22 | Maintenance manhole seal structure of rotary seal valve of dried extinguishing furnace cooling coke discharging equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201241080Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813180A (en) * | 2010-04-23 | 2010-08-25 | 胡炜 | Inspection hole cover |
| CN101928573A (en) * | 2009-06-19 | 2010-12-29 | 中冶成工上海五冶建设有限公司 | Test run method of dry quenching mechanical equipment |
-
2008
- 2008-05-22 CN CNU2008200673425U patent/CN201241080Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928573A (en) * | 2009-06-19 | 2010-12-29 | 中冶成工上海五冶建设有限公司 | Test run method of dry quenching mechanical equipment |
| CN101813180A (en) * | 2010-04-23 | 2010-08-25 | 胡炜 | Inspection hole cover |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20160522 |