CN204298416U - A kind of preformed liner belly pipe - Google Patents
A kind of preformed liner belly pipe Download PDFInfo
- Publication number
- CN204298416U CN204298416U CN201420718641.6U CN201420718641U CN204298416U CN 204298416 U CN204298416 U CN 204298416U CN 201420718641 U CN201420718641 U CN 201420718641U CN 204298416 U CN204298416 U CN 204298416U
- Authority
- CN
- China
- Prior art keywords
- pipe
- internal layer
- belly
- preformed liner
- prefabricated pipe
- 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.)
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- 210000001015 abdomen Anatomy 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000003245 coal Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229910001566 austenite Inorganic materials 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052863 mullite Inorganic materials 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000013467 fragmentation Methods 0.000 abstract description 4
- 238000006062 fragmentation reaction Methods 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 description 5
- 239000011819 refractory material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
A kind of preformed liner belly pipe, comprises steel shell and internal layer prefabricated pipe, and the light heat insulating castable of filling between steel shell and internal layer prefabricated pipe, and described prefabricated pipe is that the pipe fitting of two sections or three sections combines.The combination part of described prefabricated pipe pipe fitting is " Z " type interface.The internal layer prefabricated pipe that the utility model adopts two sections or three sections of pipe fittings to combine, between internal layer prefabricated pipe production process in carrying and when making assembling, overcoming internal layer prefabricated pipe and easily fragmentation occurring, causing the fabrication yield of belly pipe low, production cost is high, the difficult problem that inconvenience is promoted.
Description
Technical field
The utility model relates to blast furnace blast apparatus belly pipe, is specifically related to a kind of preformed liner belly pipe.
Background technology
Air-intake device is the equipment hot blast in blast furnace bustle pipe being sent into blast furnace, and belly pipe is the critical component of air-intake device.Belly pipe shell is box hat, and the inside is refractory liner, by surrounding space position limitation, can not do too thick, and also inconvenience adopts water-cooling structure.Often occur in using that surface temperature is high, even redness phenomenon, occur time serious burning, must change by damping down, seriously restrict ironmaking production.
Another major reason producing above-mentioned phenomenon is the intensity of refractory material and heat-proof quality is conflict, the fire-resistant material heat insulation poor thermal insulation property that intensity is high, cause surface temperature high, not only thermal loss is large, also longevity is unfavorable for, and well-insulated refractory material intensity is low, thermo-labile wind washes away, and the life-span is not high yet.Along with the progress of blast furnace smelting technology, high wind-warm syndrome, high blast operate, in addition the applying of oxygen-enriched injection technology, and fill particularly belly pipe have higher requirement to air intake.So, usually adopt the belly pipe of three-decker at present, i.e. light filling heat-insulation and heat-preservation castable between steel shell and internal layer prefabricated pipe.
But between internal layer prefabricated pipe production process in carrying and when making assembling, internal layer prefabricated pipe easily fragmentation occurs, and cause the fabrication yield of belly pipe low, production cost is high, be difficult to promote.
Summary of the invention
The utility model provides a kind of preformed liner belly pipe, solves internal layer prefabricated pipe and in transit and when assembling broken problem easily occurs.
The purpose of this utility model realizes in the following manner:
A kind of preformed liner belly pipe, comprises steel shell and internal layer prefabricated pipe, and the light heat insulating castable of filling between steel shell and internal layer prefabricated pipe, and described prefabricated pipe is that the pipe fitting of two sections or three sections combines.
The combination part of described prefabricated pipe pipe fitting is " Z " type interface.
The combination part interface chamotte of described prefabricated pipe pipe fitting seals.
Steel shell is integral by flange, pipe shaft, front end, adapter sleeve, shrouding, adapter, coal powder injection flange welding.
The flange of steel shell, pipe shaft, adapter sleeve, shrouding, adapter, coal powder injection flange adopt mild steel, and front end adopts austenite stainless heat-resistance steel.
The pipe fitting of described internal layer prefabricated pipe adopts High-Alumina castable refractory prefabricated, and density is 2.6g/cm
3~ 3.0g/cm
3.
Light heat insulating castable adopts mullite lightening casting material, and density is 1.3g/cm
3~ 1.5g/cm
3.
Relative to prior art, the internal layer prefabricated pipe that the utility model adopts two sections or three sections of pipe fittings to combine, between internal layer prefabricated pipe production process in carrying and when making assembling, overcome internal layer prefabricated pipe and easily fragmentation occurs, cause the fabrication yield of belly pipe low, production cost is high, the difficult problem that inconvenience is promoted.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1 is steel shell, and 2 is prefabricated pipe, and 3 is light heat insulating castables, and 11 is flanges, and 12 is pipe shafts, and 13 is front ends, and 14 is adapter sleeves, and 15 is shroudings, and 16 is adapters, and 17 is coal powder injection flanges, and 21 is pipe fittings, and 22 is interfaces, and 23 is chamotte.
Detailed description of the invention
Embodiment:
As shown in Figure 1, the utility model comprises steel shell 1 and internal layer prefabricated pipe 2, and the light heat insulating castable 3 of filling between steel shell 1 and internal layer prefabricated pipe 2, and described prefabricated pipe 2 is that the pipe fitting 21 of two sections or three sections combines.The combination part of prefabricated pipe pipe fitting 21 is " Z " type interface 22.The combination part interface 22 place chamotte 23 of prefabricated pipe pipe fitting 21 seals.Steel shell 1 is integrally welded by flange 11, pipe shaft 12, front end 13, adapter sleeve 14, shrouding 15, adapter 16, coal powder injection flange 17.The flange 11 of steel shell 1, pipe shaft 12, adapter sleeve 14, shrouding 15, adapter 16, coal powder injection flange 17 adopt mild steel, and front end 13 adopts austenite stainless heat-resistance steel.The pipe fitting 21 of described internal layer prefabricated pipe 2 adopts High-Alumina castable refractory prefabricated, and density is 2.6g/cm
3~ 3.0g/cm
3.Light heat insulating castable 3 adopts mullite lightening casting material, and density is 1.3g/cm
3~ 1.5g/cm
3.Be bonded and sealed with refractory mortar 23 between every section of prefabricated pipe pipe fitting 21, between prefabricated pipe pipe fitting 21 and front end 13.
Make this preformed liner belly pipe and adopt double-layer refractory material, namely the internal layer refractory material of hot blast contact adopts heavy wear-resistant castable to be first prefabricated into tubulose prefabricated pipe 2 and is placed in belly pipe steel shell 1, the prefabricated pipe pipe fitting 21 of two sections or three sections can be adopted to combine according to the total length situation of belly pipe; Then light filling heat-insulation and heat-preservation castable 3 between prefabricated pipe 2 outside and steel shell 1.
According to the belly pipe structure of different size, the thickness of internal layer prefabricated pipe 2 is about 20 ~ 30mm.500 ~ 600 DEG C of bakings can be carried out after pre-formed.Prefabricated pipe pipe fitting 21 interface of inner bag can design " Z " shape interface 22, and prefabricated pipe 2 can be made firmly to combine, and interface also can adopt chamotte 23 adhering and sealing.Each section of docking during the design ease of assembly of " Z " shape interface 22, has certain damping action to leaking out during chamotte 23 poor sealing in addition.
The utility model, because internal layer adopts inner bag, outer adopts light thermal-insulation material, solves the resistance to hot blast of single refractory material and wash away the contradiction with heat-insulation and heat-preservation, adapt to modern blast furnace ironmaking operating mode, can improve belly pipe service life more than 50%.Relative to prior art, the internal layer prefabricated pipe that the utility model adopts two sections or three sections of pipe fittings to combine, effectively can reduce the Fragmentation Phenomena shaking stressed generation in transit.When installing generation and being broken, only can change disruption elements, avoid integral replacing to affect installation progress, thus cause the phenomenon that the annual utilization of capacity is low, also can save the replacement cost of equipment simultaneously, reduce the occupation of capital that large-scale standby redundancy causes.
Above-described is only preferred embodiment of the present utility model; it should be pointed out that for a person skilled in the art, do not departing under the utility model general idea prerequisite; can also make some changes and improvements, these also should be considered as protection domain of the present utility model.
Claims (7)
1. a preformed liner belly pipe, comprise steel shell (1) and internal layer prefabricated pipe (2), and the light heat insulating castable (3) of filling between steel shell (1) and internal layer prefabricated pipe (2), it is characterized in that: described prefabricated pipe (2) is that the pipe fitting (21) of two sections or three sections combines.
2. preformed liner belly pipe according to claim 1, is characterized in that: the combination part of described prefabricated pipe pipe fitting (21) is " Z " type interface (22).
3. preformed liner belly pipe according to claim 2, is characterized in that: combination part interface (22) place chamotte (23) sealing of described prefabricated pipe pipe fitting (21).
4. the preformed liner belly pipe according to claim 1,2 or 3, is characterized in that: steel shell (1) is integrally welded by flange (11), pipe shaft (12), front end (13), adapter sleeve (14), shrouding (15), adapter (16), coal powder injection flange (17).
5. the preformed liner belly pipe according to claim 1,2 or 3, it is characterized in that: the flange (11) of steel shell (1), pipe shaft (12), adapter sleeve (14), shrouding (15), adapter (16), coal powder injection flange (17) adopt mild steel, and front end (13) adopts austenite stainless heat-resistance steel.
6. the preformed liner belly pipe according to claim 1,2 or 3, is characterized in that: the pipe fitting (21) of described internal layer prefabricated pipe (2) adopts High-Alumina castable refractory prefabricated, and density is 2.6g/cm
3~ 3.0g/cm
3.
7. the preformed liner belly pipe according to claim 1,2 or 3, is characterized in that: light heat insulating castable (3) adopts mullite lightening casting material, and density is 1.3g/cm
3~ 1.5g/cm
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420718641.6U CN204298416U (en) | 2014-11-26 | 2014-11-26 | A kind of preformed liner belly pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420718641.6U CN204298416U (en) | 2014-11-26 | 2014-11-26 | A kind of preformed liner belly pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204298416U true CN204298416U (en) | 2015-04-29 |
Family
ID=53103973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420718641.6U Active CN204298416U (en) | 2014-11-26 | 2014-11-26 | A kind of preformed liner belly pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204298416U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355450A (en) * | 2018-11-27 | 2019-02-19 | 世林（漯河）冶金设备有限公司 | A kind of compound belly pipe of resistance to material |
-
2014
- 2014-11-26 CN CN201420718641.6U patent/CN204298416U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355450A (en) * | 2018-11-27 | 2019-02-19 | 世林（漯河）冶金设备有限公司 | A kind of compound belly pipe of resistance to material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Prefabricated liner blowpipe Effective date of registration: 20181120 Granted publication date: 20150429 Pledgee: Rural Credit Cooperatives in Yuanhui District of Luohe City Pledgor: Shilin (Luohe) Metallurgy Equipment Co., Ltd. Registration number: 2018990001095 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20191030 Granted publication date: 20150429 Pledgee: Rural Credit Cooperatives in Yuanhui District of Luohe City Pledgor: Shilin (Luohe) Metallurgical Equipment Co., Ltd. Registration number: 2018990001095 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Prefabricated liner blowpipe Effective date of registration: 20191101 Granted publication date: 20150429 Pledgee: Rural Credit Cooperatives in Yuanhui District of Luohe City Pledgor: Shilin (Luohe) Metallurgical Equipment Co., Ltd. Registration number: Y2019980000479 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200902 Granted publication date: 20150429 Pledgee: Rural Credit Cooperatives in Yuanhui District of Luohe City Pledgor: SHILIN (LUOHE) METALLURGY EQUIPMENT Co.,Ltd. Registration number: Y2019980000479 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A kind of direct blow pipe with prefabricated inner liner Effective date of registration: 20200904 Granted publication date: 20150429 Pledgee: Zhengzhou Zhengdong New Area sub branch of Guangfa Bank Co., Ltd Pledgor: SHILIN (LUOHE) METALLURGY EQUIPMENT Co.,Ltd. Registration number: Y2020980005734 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210909 Granted publication date: 20150429 Pledgee: Zhengzhou Zhengdong New Area sub branch of Guangfa Bank Co., Ltd Pledgor: SHILIN (LUOHE) METALLURGY EQUIPMENT Co.,Ltd. Registration number: Y2020980005734 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |