CN203923237U - The anti-string wind of a kind of blast-furnace hot-air pipeline anti-clogging plug proofing unit - Google Patents
The anti-string wind of a kind of blast-furnace hot-air pipeline anti-clogging plug proofing unit Download PDFInfo
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- CN203923237U CN203923237U CN201420284976.1U CN201420284976U CN203923237U CN 203923237 U CN203923237 U CN 203923237U CN 201420284976 U CN201420284976 U CN 201420284976U CN 203923237 U CN203923237 U CN 203923237U
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- inner tube
- blast
- air pipeline
- furnace hot
- proofing unit
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Abstract
The utility model provides the technical scheme of the anti-string wind of a kind of blast-furnace hot-air pipeline anti-clogging plug proofing unit, this scheme comprises on the shell that is fixed on hot air duct and the outer tube being connected with shell, also comprise the inner tube that is fixed on outer tube inside, the lower end of this inner tube is positioned at the embedded hole of the firebrick lining of hot air duct, in the cavity that the outer wall of the inwall of described outer tube and the outer wall of inner tube, firebrick lining forms, is filled with sealing medium.This scheme is provided with inner and outer tubes, in the cavity that the outer wall of the inwall of outer tube and the outer wall of inner tube, firebrick lining forms, is filled with sealing medium, thus the string wind having produced while having avoided the physical parameter of blast-furnace hot-air pipeline to detect and the problem of obstruction.
Description
Technical field
The utility model relates to a kind of proofing unit, the anti-string wind of especially a kind of blast-furnace hot-air pipeline anti-clogging plug proofing unit.
Background technology
At present, blast furnace ironmaking need to transmit the approximately hot blast of more than 1300 degree Celsius of 0.4 MPa pressure by hot air duct in producing, and hot air duct, for can bear High Temperature High Pressure, generally adopts the structure of outside steel pipe internal refractory bricking.In order to measure the pressure in hot air duct, need to get orifice under pressure at fire-brick lined, simultaneously externally steel pipe perforate weld pressure pipe, like this, the pressure obtaining in hot air duct by pressure pipe completes the measurement to blast-furnace hot-air pipeline internal pressure; Take same method to complete the measurement to temperature in hot air duct.In prior art, in the process of fire-resistant brick hole, because building reason by laying bricks or stones, usually perforate is excessive, the 15mm requiring much larger than pressure detection, use after for some time, due to the internal refractory bricking reason such as be out of shape, subside, come off, between bricking and outside steel pipe, can produce gap, the wind in gap can enter in pressure pipe, " string wind " phenomenon namely
Not only make hot-blast pressure, temperature detection produce fault, the serious blast furnace that can only make is forced to damping down grouting, and grouting likely causes pressure port to stop up completely.This is the existing weak point of prior art.
Summary of the invention
Technical problem to be solved in the utility model, be exactly for the existing deficiency of prior art, and provide the technical scheme of the anti-string wind of a kind of blast-furnace hot-air pipeline anti-clogging plug proofing unit, this scheme is provided with inner and outer tubes, in the cavity that the outer wall of the inwall of outer tube and the outer wall of inner tube, firebrick lining forms, be filled with sealing medium, thus the string wind having produced while having avoided the physical parameter of blast-furnace hot-air pipeline to detect and the problem of obstruction.
This programme is achieved by the following technical measures: the anti-string wind of a kind of blast-furnace hot-air pipeline anti-clogging plug proofing unit, comprise on the shell that is fixed on hot air duct and the outer tube being connected with shell, also comprise the inner tube that is fixed on outer tube inside, the lower end of this inner tube is positioned at the embedded hole of the firebrick lining of hot air duct, in the cavity that the outer wall of the inwall of described outer tube, the outer wall of inner tube and firebrick lining forms, is filled with sealing medium.
Further improvement of the utility model also has, the top of described outer tube is fixed with top cover, described inner tube is passed this top cover and is fixedly connected with top cover, top cover and refractory cements acting in conjunction, can avoid air leakage phenomena completely, avoid high temperature air in hot air duct and the convection current of atmosphere, further strengthened the sealing property of proofing unit.
Further improvement of the utility model also has, the bottom surface of described inner tube is higher than the lower rim 180-220mm of embedded hole, if the bottom surface of inner tube is lower than the lower rim of embedded hole, can make because of the high bake in hot air duct inner tube lower end produce damages, when serious, produce melting phenomenon, if the bottom surface of inner tube surpasses 220mm higher than the lower rim of embedded hole, inner tube cannot be obtained the physical parameter in hot air duct accurately, cause measuring inaccurate, through test of many times, obtain, the bottom surface of inner tube is most preferred higher than the lower rim 200mm of embedded hole.
Further improvement of the utility model also has, and the axis of the axis of described outer tube, the axis of inner tube and top cover, on same straight line, has facilitated the installation of outer tube, inner tube and top cover and fixing.
Further improvement of the utility model also has, and described inner tube is fixed by least three support bars of its outside, and described support bar is positioned at described sealing medium.
Further improvement of the utility model also has, it is 90 ° that described support bar has the angle between four and adjacent two support bars, support bar not only plays the fixedly effect of inner tube, after cast refractory cements, inner tube, outer tube, refractory cements are integrally formed, support bar plays the effect that skeleton supports in refractory cements, has increased the intensity of refractory cements.
Because the temperature in hot air duct is up to more than 1000 degrees Celsius, that described sealing medium adopts is high temperature resistant, the refractory cements of good seal performance.
Further improvement of the utility model also has, and the upper end of described inner tube is connected with stopping valve by pipe nipple, and this stopping valve is connected with pressure unit, for the pressure survey in hot air duct.
Further improvement of the utility model also has, and the upper end of described inner tube is connected with detector unit, for the temperature survey in hot air duct.
The beneficial effect of this programme can be learnt according to the narration to such scheme, the utility model comprises on the shell that is fixed on hot air duct and the outer tube being connected with shell, also comprise the inner tube that is fixed on outer tube inside, the lower end of this inner tube is positioned at the embedded hole of the firebrick lining of hot air duct, in the cavity that the outer wall of the inwall of described outer tube, the outer wall of inner tube and firebrick lining forms, is filled with sealing medium.Utilize the utility model to obtain the physical parameter in hot air duct, processing ease, only need to be connected temperature or pressure-detecting device with inner tube; The use of sealing medium can effectively guarantee that the outer wall of shell, outer tube and firebrick lining of hot air duct is, very close to each other between the outer wall of inner tube, stopped the problem of subsiding of firebrick lining, avoided the string wind problem at stove labour hot air duct of new generation, also reduce the problem because of blockage in after the grouting that produces of string wind, ensured carrying out smoothly of physical parameters measurement in hot air duct; The utility model is simple in structure simultaneously, is convenient to maintenance maintenance.As can be seen here, the utility model compared with prior art, has substantive distinguishing features and progress, and the beneficial effect of its enforcement is also apparent.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is that the utility model is for measuring the structural representation of blast-furnace hot-air pipeline internal pressure.
Fig. 3 is that the utility model is for measuring the structural representation of temperature in blast-furnace hot-air pipeline.
Fig. 4 is the A-A sectional view of Fig. 1.
In figure, 1 shell that is hot air duct, 2 is firebrick lining, 3 lower rims that are embedded hole, 4 bottom surfaces that are inner tube, 5 is outer tube, and 6 is top cover, and 7 is inner tube, and 8 is sealing medium, and 9 is support bar, 10 is embedded hole, and 11 is pipe nipple, and 12 is stopping valve, and 13 is pressure unit, and 14 is detector unit.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by an embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
By accompanying drawing, can find out, the anti-string wind of a kind of blast-furnace hot-air pipeline anti-clogging plug proofing unit, comprise on the shell 1 that is fixed on hot air duct and the outer tube 5 being connected with shell, also comprise the inner tube 7 that is fixed on outer tube 5 inside, the lower end of inner tube 7 is positioned at the embedded hole 10 of the firebrick lining 2 of hot air duct, and the axis of the axis of described outer tube 5, inner tube 7 and the axis of top cover 6 are on same straight line.When blast-furnace hot-air pipeline need to be built by laying bricks or stones, the hole that need to be 300mm at the correct position cutting diameter of conduit enclosure, and weld length 150mm, diameter is the outer tube 5 of 300mm, the inner tube 7 that is 25mm by diameter is fixed on the inside of outer tube 5 by four support bars 9, the bottom surface 4 that makes inner tube is 200mm higher than the lower rim 3 of embedded hole, and the end face of inner tube 7 is higher than the end face 50mm of outer tube 5.As shown in Figure 4, the angle between adjacent two support bars 9 is 90 degree, and one end of support bar 9 is welded on the inwall of outer tube 5, and the other end is welded on the outer wall of inner tube 7.
The outer wall of the inwall of described outer tube 5 and inner tube 7, in the cavity that the outer wall of firebrick lining 2 forms, be filled with sealing medium 8, in the utility model, what sealing medium 8 adopted is refractory cements, there is good resistance to elevated temperatures, by inner tube 7, after outer tube 5 is fixed, between in the ring cavity of inner tube 7 and outer tube 5 formation, pour into refractory cements, outer tube 5 and inner tube 7 have been guaranteed, between firebrick lining 2, there is no gap, above-mentioned support bar 9 not only plays the effect that inner tube 7 is fixed simultaneously, after cast refractory cements, inner tube 7, outer tube 5, refractory cements and top cover 6 are integrally formed, support bar 9 plays the effect that skeleton supports in refractory cements, keep cement fixed-type.
The top of described outer tube 5 is fixed with top cover 6, the thickness of top cover 6 is 10mm, be shaped as the diameter that the shape with outer tube 5 matches is the circle of 300mm, central authorities at top cover 6 arrange the circular hole that diameter is 32mm, make inner tube 7 through the circular hole on this top cover 6, and are fixedly connected with top cover 6.Between top cover 6 and inner tube 7, outer tube 5, all adopt and be welded and fixed.The shape of the shape of outer tube 5 and top cover 6 matches, adopt trilateral, circle or square all can, be convenient to being welded and fixed between the two.
Embodiment one: the upper end of inner tube 7 is connected with stopping valve 12 by pipe nipple 11, the length of pipe nipple 11 is that 100mm, diameter are 15mm, after inner tube 30mm is inserted in the not threaded one end of pipe nipple 11, be welded to connect with inner tube 7, the stopping valve 12 that the other end installation diameter of pipe nipple 11 is 15mm is for Bonding pressure transmitter 13.
Embodiment two: different from embodiment one is, adopt the inner tube 7 that diameter is 40mm, inner tube 7 is connected with detector unit 14, and detector unit can adopt thermopair, thermopair is fixed on top cover, the probe of thermopair is inserted in inner tube.
Although above-mentioned, by reference to the accompanying drawings the embodiment of utility model is described; but the not restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (9)
1. the anti-string wind of a blast-furnace hot-air pipeline anti-clogging plug proofing unit, comprise on the shell that is fixed on hot air duct and the outer tube being connected with shell, it is characterized in that: also comprise the inner tube that is fixed on outer tube inside, the lower end of this inner tube is positioned at the embedded hole of the firebrick lining of hot air duct, in the cavity that the outer wall of the inwall of described outer tube, the outer wall of inner tube and firebrick lining forms, is filled with sealing medium.
2. the anti-string wind of blast-furnace hot-air pipeline according to claim 1 anti-clogging plug proofing unit, is characterized in that: the top of described outer tube is fixed with top cover, and described inner tube is passed this top cover and is fixedly connected with top cover.
3. the anti-string wind of blast-furnace hot-air pipeline according to claim 1 and 2 anti-clogging plug proofing unit, is characterized in that: the bottom surface of described inner tube is higher than the lower rim 180-220mm of embedded hole.
4. the anti-string wind of blast-furnace hot-air pipeline according to claim 2 anti-clogging plug proofing unit, is characterized in that: the axis of the axis of described outer tube, the axis of inner tube and top cover is on same straight line.
5. the anti-string wind of blast-furnace hot-air pipeline according to claim 1 and 2 anti-clogging plug proofing unit, is characterized in that: described inner tube is fixed by least three support bars of its outside, and described support bar is positioned at described sealing medium.
6. the anti-string wind of blast-furnace hot-air pipeline according to claim 5 anti-clogging plug proofing unit, is characterized in that: it is 90 ° that described support bar has the angle between four and adjacent two support bars.
7. according to the anti-string wind of the blast-furnace hot-air pipeline anti-clogging plug proofing unit described in claim 1 or 2 or 4 or 6, it is characterized in that: what described sealing medium adopted is refractory cements.
8. according to the anti-string wind of the blast-furnace hot-air pipeline anti-clogging plug proofing unit described in claim 1 or 2 or 4 or 6, it is characterized in that: the upper end of described inner tube is connected with stopping valve by pipe nipple, this stopping valve is connected with pressure unit.
9. according to the anti-string wind of the blast-furnace hot-air pipeline anti-clogging plug proofing unit described in claim 1 or 2 or 4 or 6, it is characterized in that: the upper end of described inner tube is connected with detector unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284976.1U CN203923237U (en) | 2014-05-30 | 2014-05-30 | The anti-string wind of a kind of blast-furnace hot-air pipeline anti-clogging plug proofing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284976.1U CN203923237U (en) | 2014-05-30 | 2014-05-30 | The anti-string wind of a kind of blast-furnace hot-air pipeline anti-clogging plug proofing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203923237U true CN203923237U (en) | 2014-11-05 |
Family
ID=51819092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420284976.1U Withdrawn - After Issue CN203923237U (en) | 2014-05-30 | 2014-05-30 | The anti-string wind of a kind of blast-furnace hot-air pipeline anti-clogging plug proofing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203923237U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981316A (en) * | 2014-05-30 | 2014-08-13 | 济钢集团有限公司 | Anti-ventilation anti-blocking detection device for blast furnace hot air duct |
-
2014
- 2014-05-30 CN CN201420284976.1U patent/CN203923237U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981316A (en) * | 2014-05-30 | 2014-08-13 | 济钢集团有限公司 | Anti-ventilation anti-blocking detection device for blast furnace hot air duct |
| CN103981316B (en) * | 2014-05-30 | 2016-08-17 | 济钢集团有限公司 | A kind of blast-furnace hot-air pipeline anti-string wind anti-clogging detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141105 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |