CN101328519B - Hot air valve cover - Google Patents
Hot air valve cover Download PDFInfo
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- CN101328519B CN101328519B CN2008101408489A CN200810140848A CN101328519B CN 101328519 B CN101328519 B CN 101328519B CN 2008101408489 A CN2008101408489 A CN 2008101408489A CN 200810140848 A CN200810140848 A CN 200810140848A CN 101328519 B CN101328519 B CN 101328519B
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- valve cover
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- thermal insulation
- hot air
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Abstract
The invention discloses a hot blast valve cover. The hot blast valve cover comprises a long flange, a wide vertical plate, a narrow vertical plate, a top cover plate, a supporting rib, a supporting shoulder and radiating rib steel plate welding pieces. The surface of an inner chamber of each steel plate welding piece adopts a multilevel covering layer made of fire resistant material linings; the covering layer comprises a thermal insulation layer, a heat preservation layer, a heat isolation layer, a high-temperature resistance layer and an energy-saving reflection layer in turn; the thermal insulation layer adopts ganister; the heat preservation layer adopts a refractory felt; the heat isolation layer adopts a light-weight casting material; the high-temperature resistance layer adopts a heavy-weight casting material; and the energy-saving reflection layer adopts aluminum-zirconium high-temperature dope. The valve cover obviously improves the cooling effect; compared with the micro-water energy-saving hot blast valve cover disclosed by CN1769501, the valve cover has an optimized structure and simple manufacturing. A valve cover shell adopts more advanced high-temperature resistant material lining covering layer, has the obvious effects of heat preservation and heat isolation, reduces the heat load of a steel structure, can bear large thermal impact and thermal fluctuation, is not damaged by frequent startup, is safe and economical and improves the service life of the whole hot blast valve. The hot blast valve cover is suitable for the urgent demands of water and energy conservation in current steel enterprises.
Description
Technical field
The present invention relates to a kind of hot blast valve of blast-furnace hot-air pipe applications, particularly a kind of hot air valve cover.
Background technology
Hot blast valve in the blast furnace ironmaking is installed on the hot blast manifold of hotblast stove, and long term operation is under hot environment, and working condition is abominable, and the thermal fatigue phenomenon takes place easily.For reducing its high temperature oxidation and thermal stress deformation, usually all be to adopt the water cycle type of cooling to lower the temperature both at home and abroad, though certain cooling-down effect is arranged, but water resources consumption is many, and the wind-warm syndrome loss is bigger, after incrustation scale appears in cooling water channel, water-cooled is obstructed, cause and can't lower the temperature, hot blast valve damages, and be very limited work-ing life.
CN1769501 discloses a kind of energy-saving hot blast valve using little water, and it is obvious to save water coolant.But the valve gap of this patent disclosure exists obviously not enough, is exactly that the valve gap refractory lining adopts three layers of refractory liner tectum by different level, but three layers of anti-material insulation, effect of heat insulation are limited, Valve Steel structure appearance temperature drift, and the easy thermal fatigue of steel construction influences work-ing life; In addition, along with the progress of ironmaking technology, wind-warm syndrome, blast improve constantly, and adopt the heat-resisting wind scouring effect of heavy mould material high temperature resistance flame retardant coating poor, are difficult to satisfy the ironmaking working condition requirement.So improve valve gap refractory liner structure, very urgent, necessary.
Summary of the invention
In order to solve the technical problem that above-mentioned hot air valve cover exists, intend improving the valve cover structure design, adopt more advanced anti-high hot material lining, improve surperficial heat resistanceheat resistant wind scouring capability, prolong hot air valve cover work-ing life, the water resources that avoids waste, thus a kind of new hot air valve cover is provided.
The present invention solves the technical scheme that the prior art problem adopted:
This hot air valve cover comprises regular way orchid, wide, narrow riser, lamina tecti, brace rod, holder shoulder and radiating ribs steel plate weldment.Described each steel plate weldment surface of internal cavity adopts refractory liner tectum by different level, this tectum comprises thermal insulation layer, thermal insulation layer, thermofin, high temperature resistance layer and the energy-conservation reflecting layer that distributes successively, thermal insulation layer adopts siliceous coating, thermal insulation layer adopts refractory felt, thermofin adopts lightening casting material, the high temperature resistance flame retardant coating adopts the heavy mould material, and aluminium zirconium matter high-temperature coatings is adopted in energy-conservation reflecting layer.
Described valve gap housing medial surface perisporium is welded with anchor nails.
The wide riser of described valve gap body, narrow riser change straight plate into by circular-arc, are convenient to make.
This micro-water energy-saving hot air valve cover has obviously improved its cooling performance, compares with the disclosed micro-water energy-saving hot air valve cover of CN1769501, and composition optimizes, simple for production, reduced cost.Adopt more advanced anti-high hot material lining tectum in the valve gap housing, insulation, effect of heat insulation are obvious, and the steel construction thermal load reduces, and can bear big thermal shocking and heat fluctuation, and frequent starting is unlikely impaired, and is safe, economical, and the hot blast valve bulk life time improves.Adapt to the water saving of present steel enterprise, energy-conservation pressing for.
Description of drawings
Accompanying drawing is a front view of the present invention
Embodiment
Introduce embodiments of the invention below in conjunction with accompanying drawing.
As shown in the figure: this hot air valve cover is welded by steel plateelements such as regular way orchid 1, wide riser 2, narrow riser 3, lamina tecti 4, brace rod 5, holder shoulder 6 and radiating ribs 7.Each steel plate weldment internal surface welding anchor nails 8, each steel plate weldment surface of internal cavity also adopts refractory liner tectum 9 by different level, this tectum 9 comprises thermal insulation layer, thermal insulation layer, thermofin, high temperature resistance layer and the energy-conservation reflecting layer that distributes successively, thermal insulation layer adopts siliceous coating, thermal insulation layer adopts refractory felt, thermofin adopts lightening casting material, and the high temperature resistance flame retardant coating adopts the heavy mould material, and aluminium zirconium matter high-temperature coatings is adopted in energy-conservation reflecting layer.
The wide riser 2 of valve gap body, narrow riser 3 adopt straight plate, and be simple for production.
Claims (2)
1. the hot air valve cover used of a hot air duct, it comprises the regular way orchid, wide, narrow riser, lamina tecti, brace rod, holder shoulder and radiating ribs steel plate weldment, it is characterized in that: each steel plate weldment surface of internal cavity of described hot air valve cover adopts refractory liner tectum by different level, this tectum comprises the thermal insulation layer that distributes successively, thermal insulation layer, thermofin, high temperature resistance layer and energy-conservation reflecting layer, thermal insulation layer adopts siliceous coating, thermal insulation layer adopts refractory felt, thermofin adopts lightening casting material, the high temperature resistance flame retardant coating adopts the heavy mould material, and aluminium zirconium matter high-temperature coatings is adopted in energy-conservation reflecting layer.
2. a kind of hot air valve cover according to claim 1 is characterized in that: wide riser, the narrow riser of described valve gap adopt straight plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101408489A CN101328519B (en) | 2008-07-30 | 2008-07-30 | Hot air valve cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101408489A CN101328519B (en) | 2008-07-30 | 2008-07-30 | Hot air valve cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101328519A CN101328519A (en) | 2008-12-24 |
| CN101328519B true CN101328519B (en) | 2010-09-29 |
Family
ID=40204527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101408489A Active CN101328519B (en) | 2008-07-30 | 2008-07-30 | Hot air valve cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101328519B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103421918B (en) * | 2012-05-14 | 2015-07-08 | 秦皇岛秦冶重工有限公司 | Hot blast valve |
| CN103421920B (en) * | 2012-05-14 | 2015-07-08 | 秦皇岛秦冶重工有限公司 | Valve cover of hot blast valve |
| CN106864444A (en) * | 2017-01-19 | 2017-06-20 | 布朗科汽车制动系统（镇江）有限公司 | Brakes check valve valve plate and its manufacture method |
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2008
- 2008-07-30 CN CN2008101408489A patent/CN101328519B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101328519A (en) | 2008-12-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Feng Li Inventor after: Wang Yinhe Inventor after: Li Juntao Inventor after: Zhang Haiyou Inventor after: Ren Jinxi Inventor after: Yang Guoyu Inventor after: Zhao Zhanwei Inventor before: Feng Li Inventor before: Wang Yinhe Inventor before: Li Juntao Inventor before: Zhang Haiyou Inventor before: Li Pengfei Inventor before: Dang Yong Inventor before: Yang Guoyu |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: FENG LI WANG YINHE LI JUNTAO ZHANG HAIYOU LI PENGFEI DANG YONG YANG GUOYU TO: FENG LI WANG YINHE LI JUNTAO ZHANG HAIYOU REN JINXI YANG GUOYU ZHAO ZHANWEI |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |