CN106906324A - A kind of heat-insulated layer processing method of blast-furnace tuyere and blast-furnace tuyere - Google Patents
A kind of heat-insulated layer processing method of blast-furnace tuyere and blast-furnace tuyere Download PDFInfo
- Publication number
- CN106906324A CN106906324A CN201710219298.9A CN201710219298A CN106906324A CN 106906324 A CN106906324 A CN 106906324A CN 201710219298 A CN201710219298 A CN 201710219298A CN 106906324 A CN106906324 A CN 106906324A
- Authority
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- China
- Prior art keywords
- groove
- blast
- heat
- furnace tuyere
- air channel
- 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.)
- Pending
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 15
- 238000009413 insulation Methods 0.000 claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 13
- 239000000853 adhesive Substances 0.000 claims abstract description 7
- 230000001070 adhesive effect Effects 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 14
- 239000010431 corundum Substances 0.000 claims description 6
- 229910052593 corundum Inorganic materials 0.000 claims description 6
- 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 5
- 229910052863 mullite Inorganic materials 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 2
- 208000011580 syndromic disease Diseases 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/16—Tuyéres
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/04—Blast furnaces with special refractories
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
Abstract
The invention belongs to metallurgical engineering technical field, a kind of heat-insulated layer processing method of blast-furnace tuyere is disclosed, including：Groove is opened up on the hot-air channel inwall of air port；The coated with adhesive in the groove；Gear mould is set above the groove, is resisted against on the air port hot-air channel inwall of groove both sides；The through hole for connecting the groove is opened up on the gear mould；By the through hole to injecting heat-resisting slurry in the groove；Baking thermal source is placed in the air port hot-air channel, the slurry in baking groove；After baking terminates, remove the gear mould and clear up air port hot-air channel inwall.The invention provides one kind lifting blast-furnace tuyere thermal insulation layer preparation efficiency, the method for structural stability, and heat-insulating efficiency.
Description
Technical field
The present invention relates to metallurgical engineering technical field, more particularly to a kind of heat-insulated layer processing method of blast-furnace tuyere and blast furnace wind
Mouthful.
Background technology
At present, in order to reduce production cost, pursuit greatly improves hot blast temperature to blast furnace ironmaking, builds superelevation wind-warm syndrome hot blast
Stove, to expect the wind-warm syndrome of 1300~1350 DEG C of acquisition and the above.
But, generally hot blast is delivered in blast furnace from hot-blast stove, the conveying of long range is experienced, heat loss on the way is
Restriction blast furnace obtains the key factor of wind-warm syndrome high.Investigated by experiment, finding the pressure cooling in blast furnace water-cooling air port can make wind-warm syndrome
More than 30 DEG C are reduced, causes the actual wind-warm syndrome obtained in stove less than 1300~1350 DEG C, reduce the service efficiency of hot blast.
The content of the invention
The present invention provides a kind of heat-insulated layer processing method of blast-furnace tuyere and blast-furnace tuyere, solves blast-furnace tuyere in the prior art
The big technical problem of hot blast heat waste.
In order to solve the above technical problems, the invention provides a kind of heat-insulated layer processing method of blast-furnace tuyere, including：
Groove is opened up on the hot-air channel inwall of air port；
The coated with adhesive in the groove；
Gear mould is set above the groove, is resisted against on the air port hot-air channel inwall of groove both sides；
The through hole for connecting the groove is opened up on the gear mould；
By the through hole to injecting heat-resisting slurry in the groove；
Baking thermal source is placed in the air port hot-air channel, the slurry in baking groove；
After baking terminates, remove the gear mould and clear up air port hot-air channel inwall.
Further, the heat-resisting slurry uses mullite material or corundum material.
Further, the 7~10mm of depth bounds of the groove.
Further, the baking time of the baking thermal source is maintained at 8~16 hours.
Further, the binding agent uses high-temperature inorganic adhesive.
A kind of blast-furnace tuyere, including：Tuyere body and thermal insulation layer；
An annular groove is opened up on the air channel inwall of the tuyere body, the thermal insulation layer is embedded in the annular groove.
Further, the thermal insulation layer uses corundum material or mullite material.
One or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or advantage：
The heat-insulated layer processing method of blast-furnace tuyere provided in the embodiment of the present application, groove is opened up on the air channel inwall in air port
As the bearing structure and mould of thermal insulation layer, coordinate gear mould that sizing baking is carried out to heat-resisting slurry, complete adding for heat proof material
Work.So that thermal insulation layer is substantially improved with the pertinency of air channel inwall, so as to ensure the Forming Quality and knot of heat insulation structural
Structure stability.On the other hand, embedded thermal insulation layer can keep apart hot blast and air port cooling water so that heat on the inwall of air channel
The efficiency of transmission is greatly reduced, and reduces heat waste.
Brief description of the drawings
The blast-furnace tuyere structure schematic diagram that Fig. 1 is provided for the present invention.
Specific embodiment
The embodiment of the present application solves prior art by providing a kind of heat-insulated layer processing method of blast-furnace tuyere and blast-furnace tuyere
The big technical problem of middle blast-furnace tuyere hot blast heat waste；Lifting thermal insulation layer preparation efficiency, and insulating layer structure stability are reached, it is heat-insulated
The technique effect of efficiency.
In order to be better understood from above-mentioned technical proposal, below in conjunction with Figure of description and specific embodiment to upper
State technical scheme to be described in detail, it should be understood that the specific features in the embodiment of the present invention and embodiment are to the application skill
The detailed description of art scheme, rather than the restriction to technical scheme, in the case where not conflicting, the embodiment of the present application
And the technical characteristic in embodiment can be mutually combined.
Referring to Fig. 1, a kind of heat-insulated layer processing method of blast-furnace tuyere, including：
Groove 4 is opened up on the hot-air channel inwall 1 in air port；
The coated with adhesive in the groove 4；
4 sides set gear mould 2 on the groove, are resisted against on the air port hot-air channel inwall 1 of the both sides of groove 4；
The through hole 3 for connecting the groove is opened up on the gear mould 2；
By the through hole 3 to injecting heat-resisting slurry in the groove 4；
Baking thermal source is placed in the air port hot-air channel, the slurry in baking groove 4；
After baking terminates, remove the gear mould 2 and clear up air port hot-air channel inwall.
By above-mentioned steps, with groove 4 and gear mould 2 as mould, the thermal insulation layer that construction on site is agreed with tuyere structure, so that
So that the combination reliability in thermal insulation layer and air port is substantially improved, it is ensured that heat-insulating efficiency.
Specifically, the heat-resisting slurry uses mullite material or corundum material.Ensure good heat-insulated effect
Rate.
In general, the 7~10mm of depth bounds of the groove.
Further, the baking time of the baking thermal source is maintained at 8~16 hours.
Further, the binding agent uses high-temperature inorganic adhesive.
Based on the above method, the present embodiment additionally provides a kind of air port with thermal insulation layer.
A kind of blast-furnace tuyere, including：Tuyere body and thermal insulation layer；
An annular groove is opened up on the air channel inwall of the tuyere body, the thermal insulation layer is embedded in the annular groove.
Further, the thermal insulation layer uses corundum material or mullite material.
One or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or advantage：
The heat-insulated layer processing method of blast-furnace tuyere provided in the embodiment of the present application, groove is opened up on the air channel inwall in air port
As the bearing structure and mould of thermal insulation layer, coordinate gear mould that sizing baking is carried out to heat-resisting slurry, complete adding for heat proof material
Work.So that thermal insulation layer is substantially improved with the pertinency of air channel inwall, so as to ensure the Forming Quality and knot of heat insulation structural
Structure stability.On the other hand, embedded thermal insulation layer can keep apart hot blast and air port cooling water so that heat on the inwall of air channel
The efficiency of transmission is greatly reduced, and reduces heat waste.
It should be noted last that, above specific embodiment is merely illustrative of the technical solution of the present invention and unrestricted,
Although being described in detail to the present invention with reference to example, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent, without deviating from the spirit and scope of technical solution of the present invention, it all should cover
In the middle of scope of the presently claimed invention.
Claims (7)
1. the heat-insulated layer processing method of a kind of blast-furnace tuyere, it is characterised in that including：
Groove is opened up on the hot-air channel inwall of air port；
The coated with adhesive in the groove；
Gear mould is set above the groove, is resisted against on the air port hot-air channel inwall of groove both sides；
The through hole for connecting the groove is opened up on the gear mould；
By the through hole to injecting heat-resisting slurry in the groove；
Baking thermal source is placed in the air port hot-air channel, the slurry in baking groove；
After baking terminates, remove the gear mould and clear up air port hot-air channel inwall.
2. the heat-insulated layer processing method of blast-furnace tuyere as claimed in claim 1, it is characterised in that：The heat-resisting slurry uses not coming
Stone material or corundum material.
3. the heat-insulated layer processing method of blast-furnace tuyere as claimed in claim 2, it is characterised in that：The depth bounds 7 of the groove
~10mm.
4. the heat-insulated layer processing method of blast-furnace tuyere as claimed in claim 3, it is characterised in that：During the baking of the baking thermal source
Between be maintained at 8~16 hours.
5. the heat-insulated layer processing method of blast-furnace tuyere as described in any one of Claims 1 to 4, it is characterised in that：The binding agent
Using high-temperature inorganic adhesive.
6. a kind of blast-furnace tuyere, it is characterised in that including：Tuyere body and thermal insulation layer；
An annular groove is opened up on the air channel inwall of the tuyere body, the thermal insulation layer is embedded in the annular groove.
7. blast-furnace tuyere as claimed in claim 6, it is characterised in that：The thermal insulation layer uses corundum material or mullite
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710219298.9A CN106906324A (en) | 2017-04-06 | 2017-04-06 | A kind of heat-insulated layer processing method of blast-furnace tuyere and blast-furnace tuyere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710219298.9A CN106906324A (en) | 2017-04-06 | 2017-04-06 | A kind of heat-insulated layer processing method of blast-furnace tuyere and blast-furnace tuyere |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106906324A true CN106906324A (en) | 2017-06-30 |
Family
ID=59193889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710219298.9A Pending CN106906324A (en) | 2017-04-06 | 2017-04-06 | A kind of heat-insulated layer processing method of blast-furnace tuyere and blast-furnace tuyere |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106906324A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2332728Y (en) * | 1998-07-10 | 1999-08-11 | 刘志昌 | Assembling blast furnace tuyere |
| CN2623694Y (en) * | 2003-06-03 | 2004-07-07 | 鞍山钢铁集团公司 | Compound energy-saving blast furnace tuyere |
| CN2680678Y (en) * | 2004-03-05 | 2005-02-23 | 魏肃宁 | Tuyeres of blast furnace |
| CN1789433A (en) * | 2004-12-16 | 2006-06-21 | 鞍山钢铁集团公司 | Long-life energy-saving blast furnace tuyere and its manufacturing method |
| CN101629221A (en) * | 2009-08-17 | 2010-01-20 | 沈阳东冶汉森冶金装备有限公司 | Blast furnace tuyere combining forging with casting and combining copper with steel |
-
2017
- 2017-04-06 CN CN201710219298.9A patent/CN106906324A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2332728Y (en) * | 1998-07-10 | 1999-08-11 | 刘志昌 | Assembling blast furnace tuyere |
| CN2623694Y (en) * | 2003-06-03 | 2004-07-07 | 鞍山钢铁集团公司 | Compound energy-saving blast furnace tuyere |
| CN2680678Y (en) * | 2004-03-05 | 2005-02-23 | 魏肃宁 | Tuyeres of blast furnace |
| CN1789433A (en) * | 2004-12-16 | 2006-06-21 | 鞍山钢铁集团公司 | Long-life energy-saving blast furnace tuyere and its manufacturing method |
| CN101629221A (en) * | 2009-08-17 | 2010-01-20 | 沈阳东冶汉森冶金装备有限公司 | Blast furnace tuyere combining forging with casting and combining copper with steel |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Applicant after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Beijing, No. 68, No. Applicant before: Capital Iron & Steel General Company |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170630 |
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| RJ01 | Rejection of invention patent application after publication |