CN204569955U - A kind of compound heat-insulation swan neck for air-supply apparatus of blast furnace - Google Patents
A kind of compound heat-insulation swan neck for air-supply apparatus of blast furnace Download PDFInfo
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- CN204569955U CN204569955U CN201520161774.2U CN201520161774U CN204569955U CN 204569955 U CN204569955 U CN 204569955U CN 201520161774 U CN201520161774 U CN 201520161774U CN 204569955 U CN204569955 U CN 204569955U
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Abstract
A kind of compound heat-insulation swan neck for air-supply apparatus of blast furnace, comprise metal shell, heat-insulation and heat-preservation pouring layer is provided with in metal shell, compound heat-insulation layer is also provided with in described metal shell, compound heat-insulation layer is between metal shell and heat-insulation and heat-preservation pouring layer, and compound heat-insulation layer comprises tinfoil paper ply of paper and aluminum silicate fiber carpet veneer.The utility model sets up compound heat-insulation layer between the metal shell and heat insulating material layer of swan neck, compound heat-insulation layer has good thermostability, wherein, and the heat reflection physicals that tinfoil paper ply of paper is excellent, can by heat to swan neck internal reflection, the heat-proof quality that alumina silicate fiber felt is good.Under the acting in conjunction of compound heat-insulation layer and heat-insulation and heat-preservation pouring layer, greatly reduce the thermal conductivity of swan neck, reduce the working temperature of swan neck metal shell, while raising its work-ing life, decrease calorific loss.
Description
Technical field
The utility model relates to a kind of parts for iron-smelting blast furnace, in particular for the compound heat-insulation swan neck of air-supply apparatus of blast furnace.
Background technology
In metallurgical iron-smelting process, the swan neck in air-supply apparatus of blast furnace is the vitals that the warm air of 1200-1350 DEG C heated by hotblast stove sends into blast furnace, require swan neck have high temperature resistant, resistance to erosion, thermal conductivity are little, the features such as ability is strong are shaken in heat resistanceheat resistant.The structure of swan neck comprises metal shell, is provided with heat-insulation and heat-preservation pouring layer in metal shell.Swan neck entirety is conical, by the restriction of contour structures and end diameter, the space leaving heat-insulation and heat-preservation pouring layer is restricted, and the adiabator layer after building is thinner, easily incinerates under the purging of high-temperature hot-air, comes off, simultaneously because effect of heat insulation is poor, swan neck outside wall temperature is high, and calorific loss is comparatively large, and metal shell works for a long time at a higher temperature, easy damage, the defect such as to leak out.Above-mentioned reason makes swan neck short for work-ing life, constrains iron-smelting blast furnace system and works continuously, and even occurs, because swan neck burns, to cause the consequence of serious industrial accident.The basic reason of above-mentioned phenomenon is that the thermo-insulating layer structure of existing swan neck cannot meet the process specifications of iron-smelting blast furnace.
Utility model content
The purpose of this utility model is the drawback for prior art, provides a kind of by setting up the compound heat-insulation swan neck for air-supply apparatus of blast furnace that compound heat-insulation layer improves effect of heat insulation and use properties, increases the service life.
The purpose of this utility model is achieved through the following technical solutions:
A kind of compound heat-insulation swan neck for air-supply apparatus of blast furnace, comprise metal shell, heat-insulation and heat-preservation pouring layer is provided with in metal shell, compound heat-insulation layer is also provided with in described metal shell, compound heat-insulation layer is between metal shell and heat-insulation and heat-preservation pouring layer, and compound heat-insulation layer comprises tinfoil paper ply of paper and aluminum silicate fiber carpet veneer.
The above-mentioned compound heat-insulation swan neck for air-supply apparatus of blast furnace, described tinfoil paper ply of paper two sides are provided with high temperature glue-line, and tinfoil paper ply of paper and alumina silicate fiber felt interlayer are bonded by high temperature glue-line, are bonded between the internal surface of tinfoil paper ply of paper and metal shell by high temperature glue-line.
The above-mentioned compound heat-insulation swan neck for air-supply apparatus of blast furnace, the internal surface of described heat-insulation and heat-preservation pouring layer is provided with ceramic chamber lining, and ceramic chamber lining outside surface mates with heat-insulation and heat-preservation pouring layer internal surface fits, and ceramic chamber lining internal surface is truncated cone-shaped.
The above-mentioned compound heat-insulation swan neck for air-supply apparatus of blast furnace, the thickness of described tinfoil paper ply of paper is 0.4-0.6 millimeter, and described alumina silicate fiber felt layer thickness is 7-8 millimeter, and described high-temp glue layer thickness is 0.2-0.3 millimeter.
The utility model improves for swan neck heat insulating material layer textural defect, the compound heat-insulation layer comprising tinfoil paper ply of paper and aluminum silicate fiber carpet veneer is set up between the metal shell and heat insulating material layer of swan neck, compound heat-insulation layer has good thermostability, wherein, the heat reflection physicals that tinfoil paper ply of paper is excellent, can by heat to swan neck internal reflection, aluminum silicate fiber carpet veneer has good heat-proof quality.Under the acting in conjunction of compound heat-insulation layer and heat-insulation and heat-preservation pouring layer, greatly reduce the thermal conductivity of swan neck, reduce the working temperature of swan neck metal shell, while raising its work-ing life, decrease calorific loss.In addition, the utility model arranges ceramic chamber lining at heat insulating material layer internal surface, heat insulation die sleeve is built in the conduct in heat insulating material layer construction process of ceramic chamber lining one side, on the other hand ceramic chamber lining in use with its high densification, anti-erosion, to be superly incubated, the resistance to feature such as to wash away greatly reduces swan neck and cracks under the high temperature conditions and the defect such as to leak out, and meets the process specifications of iron-smelting blast furnace.The utility model compares common swan neck can improve nearly 70% work-ing life.
Accompanying drawing explanation
Fig. 1 is structural representation described in the utility model;
Fig. 2 is the partial enlarged view at Fig. 1 A place.
In figure, each list of reference numerals is: 1, swan neck, 2, metal shell, 3, heat-insulation and heat-preservation pouring layer, 4, flange, 5, ceramic chamber lining, 6, aluminum silicate fiber carpet veneer, 7, high temperature glue-line, 8, tinfoil paper ply of paper.
Embodiment
Referring to Fig. 1, swan neck 1 described in the utility model comprises metal shell 2, and metal shell is truncated cone-shaped, and the smaller diameter end of swan neck is provided with flange 4, is provided with heat-insulation and heat-preservation pouring layer 3 in metal shell.
Referring to Fig. 1, Fig. 2, for improving the thermal and insulating performance of swan neck, the utility model has set up compound heat-insulation layer in metal shell, and compound heat-insulation layer is between metal shell and heat-insulation and heat-preservation pouring layer, and compound heat-insulation layer comprises tinfoil paper ply of paper 8 and aluminum silicate fiber carpet veneer 6.Tinfoil paper ply of paper has excellent heat reflection physicals, by heat to swan neck internal reflection, thus can reduce the working temperature of metal shell.Aluminum silicate fiber carpet veneer has good heat-proof quality.Greatly can reduce the thermal conductivity of swan neck under the acting in conjunction of aluminum silicate fiber carpet veneer and heat-insulation and heat-preservation pouring layer, improve heat insulation and preservation effect.Be provided with high temperature glue-line 7 in the two sides of tinfoil paper ply of paper, tinfoil paper ply of paper and alumina silicate fiber felt interlayer are bonded by high temperature glue-line, are bonded between the internal surface of tinfoil paper ply of paper and metal shell by high temperature glue-line.The thickness of tinfoil paper ply of paper is 0.4-0.6 millimeter, and alumina silicate fiber felt layer thickness is 7-8 millimeter, and high-temp glue layer thickness is 0.2-0.4 millimeter.
Still referring to Fig. 1, because when swan neck works, its inside passes into high-temperature hot-air, for improving anti-erosion, anti-hot-air blowing ability, ceramic chamber lining 5 is provided with at the internal surface of heat-insulation and heat-preservation pouring layer, ceramic chamber lining outside surface mates with heat-insulation and heat-preservation pouring layer internal surface fits, and ceramic chamber lining internal surface is truncated cone-shaped.Ceramic wear-resisting lining 4 is prefabrication, and it has good thermal shock resistance, stability, anti-erosion and abrasion resistance, and its wall thickness is 2-3 millimeter.Ceramic chamber lining substitutes conventional tetrafluoroethylene inner sleeve as building heat insulation die sleeve in heat insulating material layer construction process, in swan neck use procedure ceramic chamber lining with its high densification, anti-erosion, to be superly incubated, the resistance to feature such as to wash away greatly reduces swan neck and cracks under the high temperature conditions and the defect such as to leak out, and meets the process specifications of iron-smelting blast furnace.
Masking foil and alumina silicate fiber felt high-temp glue are first bonded as one (the non-light face of masking foil and alumina silicate fiber felt attach) when making by the utility model, be cut into the thin layer matched with metal shell inwall development size, then in the inwall brushing high-temp glue of metal shell, be not less than on the cleaning technology equipment of 20 DEG C in room temperature, the masking foil made and alumina silicate fiber felt thin layer are attached on the inwall of metal shell, then, in its cavity, building, shock, solidify and stablizing of heat-insulation and heat-preservation pouring layer is completed.
Claims (4)
1. the compound heat-insulation swan neck for air-supply apparatus of blast furnace, comprise metal shell (2), heat-insulation and heat-preservation pouring layer (3) is provided with in metal shell, it is characterized in that, compound heat-insulation layer is also provided with in described metal shell, compound heat-insulation layer is between metal shell and heat-insulation and heat-preservation pouring layer, and compound heat-insulation layer comprises tinfoil paper ply of paper (8) and aluminum silicate fiber carpet veneer (6).
2. the compound heat-insulation swan neck for air-supply apparatus of blast furnace according to claim 1, it is characterized in that, described tinfoil paper ply of paper two sides are provided with high temperature glue-line (7), tinfoil paper ply of paper and alumina silicate fiber felt interlayer are bonded by high temperature glue-line, are bonded between the internal surface of tinfoil paper ply of paper and metal shell by high temperature glue-line.
3. the compound heat-insulation swan neck for air-supply apparatus of blast furnace according to claim 2, it is characterized in that, the internal surface of described heat-insulation and heat-preservation pouring layer is provided with ceramic chamber lining (5), and ceramic chamber lining outside surface mates with heat-insulation and heat-preservation pouring layer internal surface fits, and ceramic chamber lining internal surface is truncated cone-shaped.
4. the compound heat-insulation swan neck for air-supply apparatus of blast furnace according to claim 3, is characterized in that, the thickness of described tinfoil paper ply of paper is 0.4-0.6 millimeter, and described alumina silicate fiber felt layer thickness is 7-8 millimeter, and described high-temp glue layer thickness is 0.2-0.3 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520161774.2U CN204569955U (en) | 2015-03-23 | 2015-03-23 | A kind of compound heat-insulation swan neck for air-supply apparatus of blast furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520161774.2U CN204569955U (en) | 2015-03-23 | 2015-03-23 | A kind of compound heat-insulation swan neck for air-supply apparatus of blast furnace |
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| CN204569955U true CN204569955U (en) | 2015-08-19 |
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| CN201520161774.2U Active CN204569955U (en) | 2015-03-23 | 2015-03-23 | A kind of compound heat-insulation swan neck for air-supply apparatus of blast furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI634285B (en) * | 2017-12-27 | 2018-09-01 | 國家中山科學研究院 | Thermal insulation structure for heating device |
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2015
- 2015-03-23 CN CN201520161774.2U patent/CN204569955U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI634285B (en) * | 2017-12-27 | 2018-09-01 | 國家中山科學研究院 | Thermal insulation structure for heating device |
| US10578362B2 (en) | 2017-12-27 | 2020-03-03 | National Chung-Shan Institute Of Science & Technology | Thermal insulation structure for heating device |
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| C14 | Grant of patent or utility model | ||
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Address after: 051530, Shijiazhuang, Hebei province Zhaoxian County new walled shop Patentee after: SHIJIAZHUANG JULLY SCIENCE & TECHNOLOGY CO.,LTD. Address before: 051530, Shijiazhuang, Hebei province Zhaoxian County new walled shop Patentee before: Shijiazhuang Jully Science & Technology Co.,Ltd. |
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Effective date of registration: 20230616 Granted publication date: 20150819 |