CN2229929Y - Positioning device for changing telescopic tube of hot-blast-stove - Google Patents
Positioning device for changing telescopic tube of hot-blast-stove Download PDFInfo
- Publication number
- CN2229929Y CN2229929Y CN 95244869 CN95244869U CN2229929Y CN 2229929 Y CN2229929 Y CN 2229929Y CN 95244869 CN95244869 CN 95244869 CN 95244869 U CN95244869 U CN 95244869U CN 2229929 Y CN2229929 Y CN 2229929Y
- Authority
- CN
- China
- Prior art keywords
- hot blast
- closure plate
- steady arm
- water
- plate
- 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
Abstract
The utility model discloses a positioner for replacing a hot blast valve temporarily when a telescopic tube is replaced. The positioner is composed of a blocking plate made of steel, a cylinder body, a positioning plate which are welded together. The whole width of the positioner is the same as that of the hot blast valve. The blocking plate is provided with a circular recessed groove, and the recessed groove is filled with refractory materials for blocking high temperature and high pressure at a hot blast main pipe side. A water cooling tank is arranged inside the cylinder body for reducing the high temperature at the blocking plate side and improving working environment. The positioning plate is parallel with the blocking plate, and bolt holes arranged on the positioning plate is matched with the hot blast valve and a telescopic flange to ensure the telescopic tube be positioned safely in replacing. The cylinder body of the positioner is provided with an inlet hole for workers to conveniently enter and go out of the telescopic tube to work.
Description
The utility model relates to a kind of special tool that temporarily substitutes hot blast valve when being used to change the hotblast stove expansion pipe.
In the production process of blast furnace, the hot blast that is come out by wind mixed chamber enters the hot blast person in charge through expansion pipe, hot blast valve, and expansion pipe is positioned at key position, is the necessary channel of hot blast, very easily damages, and needs often to repair or change.The expansion pipe not serious for damage intensity can carry out online reparation, but because to keep duration of service after repairing not long, present domestic and international more employing is still integral replacing method.In the replacing process, the location of expansion pipe is an a great problem.In the prior art expansion pipe of every replacing only hot blast valve just need repeated disassembled and assembled four times, work under bad environment, labour intensity is big, blast furnace was also had to damping down more than 72 hours, had had a strong impact on the ordinary production of blast furnace.
The purpose of this utility model is to overcome deficiency of the prior art, provides a kind of and both can improve Working environment, can guarantee the blast furnace ordinary production again, changes the steady arm of expansion pipe fast.
For achieving the above object, the technical solution adopted in the utility model is: will be integrally welded by steel closure plate, cylindrical shell, strongback, and constitute a steady arm, and its integral width is equated with hot blast valve, in order to the interim hot blast valve that substitutes.On its closure plate, open a diameter and be responsible for the identical garden connected in star of threeway internal diameter with hot blast, fill up refractory materials in the groove, a garden shape stiffening plate is welded on the closure plate right side, one water-cooled case is set in the cylindrical shell of closure plate one side, inlet tube and outlet tube is separately positioned on the cylindrical shell that is communicated with the water-cooled case, with the high temperature and high pressure of shutoff hot blast person in charge side, guarantee the normal air-supply of the hot blast person in charge.The quantity of closure plate upper bolt hole, aperture, pitch-row are identical with hot blast valve, the accurate location when guaranteeing to be responsible for the threeway flange and to connect with hot blast.Strongback is parallel with closure plate, and the garden heart of the bolt hole that is provided with on it is on same straight line, and diameter is identical, thereby has solved a location difficult problem of installing when expansion pipe is changed.The cylindrical shell of steady arm is provided with manhole, is convenient to personnel and enters expansion pipe and weld and build by laying bricks or stones operation.
Be provided with cooled plate in the water-cooled case, be welded on respectively on stiffening plate and the water-cooled chamber interior wall, make water coolant circuitous streaming in the water-cooled case,, improve cooling performance to prolong the residence time of water coolant in the water-cooled case.
Between the external side of locator barrels, closure plate and strongback, evenly be furnished with gusset and also be weldingly connected with it respectively, to increase the integral rigidity of steady arm.
Compared with prior art, the utlity model has following positively effect: (1) adopts steady arm to substitute hot blast valve temporarily, can reduce the dismounting number of times of hot blast valve to greatest extent, thereby avoid the damage to hot blast valve, has also reduced labour intensity simultaneously.(2) owing in the groove of closure plate, filled up refractory materials, be provided with the water-cooled case in the cylindrical shell, thereby improved operating environment greatly.(3) owing to adopted this steady arm, can under the situation that does not influence the blast furnace ordinary production, change expansion pipe.(4) since on the strongback bolt hole that distributes be complementary with the bolt hole on the expansion pipe flange, thereby the accurate location when having guaranteed the expansion pipe installation.(5) adopt this steady arm to change expansion pipe, compared with prior art can improve 3～4 times of work efficiency.
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
Fig. 1 is the scheme of installation of hot blast valve and expansion pipe.
Fig. 2 is the structural representation of steady arm.
Fig. 3 is the layout synoptic diagram of cooled plate in the water-cooled case.
As shown in Figure 2, the utility model is a kind of steady arm that is made of 8 welding of the closure plate 3 of steel, cylindrical shell 7, strongback, and its integral width H is identical with hot blast valve 2 among Fig. 1.On the closure plate 3 of steady arm, open a diameter and be responsible for the identical garden connected in star 1 of 1 threeway internal diameter, fill up refractory materials in the groove 1, weld a diameter D on the right side of closure plate 3 with hot blast shown in Figure 1
2Diameter D greater than groove 1
1, less than cylindrical shell 7 inside diameter D
3Garden shape stiffening plate 2, one water-cooled case 9 is set in the cylindrical shell 7 of closure plate 3 one sides again, be provided with cooled plate 10 in the water-cooled case 9, and be welded on respectively on the inwall of stiffening plate 2 and water-cooled case 9, the layout of cooled plate 10 as shown in Figure 3, inlet tube and outlet tube 4,5 is separately positioned on the cylindrical shell 7 that is communicated with water-cooled case 9, and water coolant enters water-cooled case 9 from water inlet pipe 4 and discharges through cooled plate 10 circuitous streaming from rising pipe 5.Hot blast valve 2 is identical among the quantity of closure plate 3 upper bolt holes 12, aperture, pitch-row and Fig. 1, and strongback 8 is parallel with closure plate 3, and the garden heart of the bolt hole 12,13 that is provided with on it is on same straight line, and diameter is identical.Arrange evenly that between steady arm cylindrical shell 7 outsides, closure plate 3 and strongback 8 gusset 6 also is weldingly connected with it respectively.
Remove hot blast valve 2 among Fig. 1 during construction earlier, steady arm is installed on the position of hot blast valve 2, closure plate 3 and hot blast are responsible for the threeway flange closely to be connected with bolt, remove old expansion pipe 3 among Fig. 1, again new expansion pipe lifting is put in place, strongback 8 and expansion pipe left end flange are coupled together by bolt.Connect inlet tube and outlet tube 4,5, make water coolant constantly circulation in water-cooled case 9, the manhole 11 that the operating personnel then is provided with from steady arm enters and welds or build by laying bricks or stones operation in the expansion pipe, finishes up to changing operation, steady arm is hung out again, and changes hot blast valve 2.
According to the foregoing description, can make corresponding steady arm according to the size of different hot blast valves, in order to change dissimilar expansion pipes or miscellaneous equipment, also can work as when taking place a kind of means as the site examining and repairing emergency processing such as accidents such as hot blast valve leakages, make it play the interim effect that substitutes hot blast valve, in order to avoid result in greater loss.
Claims (4)
1, a kind of steady arm is made of the closure plate of steel, cylindrical shell, strongback welding, and it is characterized in that: the width of steady arm is identical with hot blast valve; Have a diameter and be responsible for the identical garden connected in star (1) of threeway internal diameter with hot blast on closure plate (3), groove fills up refractory materials in (1), and a garden shape stiffening plate (2) is welded on closure plate (3) right side; One water-cooled case (9) is set in simplified (7) of closure plate (3) one sides, and inlet tube and outlet tube (4), (5) are separately positioned on the cylindrical shell (7) that is communicated with water-cooled case (9); The quantity of closure plate (3) upper bolt hole (12), aperture, pitch-row are identical with hot blast valve, and strongback (8) is parallel with closure plate (3), and the bolt hole (12) that is provided with on it, the garden heart of (13) are on same straight line, and diameter is identical.Steady arm cylindrical shell (7) is provided with manhole (11).
2, according to the described steady arm of claim 1, it is characterized in that: the diameter of stiffening plate (2) is bigger, littler than the internal diameter of cylindrical shell (7) than the diameter of closure plate (3) upper groove (1).
3, according to the described steady arm of claim 1, it is characterized in that: be provided with cooled plate (10) in the water-cooled case (9), be welded on respectively on the inwall of stiffening plate (2) and water-cooled case (9), water coolant is circuitous streaming in water-cooled case (9).
4, according to the described steady arm of claim 1, it is characterized in that: the gusset of evenly arranging between steady arm cylindrical shell (7) outside, closure plate (3) and the strongback (8) (6) is weldingly connected with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95244869 CN2229929Y (en) | 1995-10-13 | 1995-10-13 | Positioning device for changing telescopic tube of hot-blast-stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95244869 CN2229929Y (en) | 1995-10-13 | 1995-10-13 | Positioning device for changing telescopic tube of hot-blast-stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2229929Y true CN2229929Y (en) | 1996-06-26 |
Family
ID=33885177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95244869 Expired - Fee Related CN2229929Y (en) | 1995-10-13 | 1995-10-13 | Positioning device for changing telescopic tube of hot-blast-stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2229929Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266930A (en) * | 2011-04-26 | 2011-12-07 | 江苏标新久保田工业有限公司 | Baffle device for sealing molten steel and fabrication method thereof as well as die applying the baffle device |
| CN101899545B (en) * | 2009-05-27 | 2012-08-15 | 五冶集团上海有限公司 | On-line changing method of hot blast main duct of blast furnace |
-
1995
- 1995-10-13 CN CN 95244869 patent/CN2229929Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899545B (en) * | 2009-05-27 | 2012-08-15 | 五冶集团上海有限公司 | On-line changing method of hot blast main duct of blast furnace |
| CN102266930A (en) * | 2011-04-26 | 2011-12-07 | 江苏标新久保田工业有限公司 | Baffle device for sealing molten steel and fabrication method thereof as well as die applying the baffle device |
| CN102266930B (en) * | 2011-04-26 | 2012-06-13 | 江苏标新久保田工业有限公司 | Baffle device for sealing molten steel and fabrication method thereof as well as die applying the baffle device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |