CN205676489U - A kind of Blast Furnace Bottom ceramic blanket with composite construction and performance - Google Patents
A kind of Blast Furnace Bottom ceramic blanket with composite construction and performance Download PDFInfo
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- CN205676489U CN205676489U CN201620621395.1U CN201620621395U CN205676489U CN 205676489 U CN205676489 U CN 205676489U CN 201620621395 U CN201620621395 U CN 201620621395U CN 205676489 U CN205676489 U CN 205676489U
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- ceramic blanket
- furnace bottom
- upper strata
- blanket
- blast furnace
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Abstract
A kind of Blast Furnace Bottom ceramic blanket with composite construction and performance, belongs to blast furnace ironmaking equipment technical field, is placed on Blast Furnace Bottom when blast furnace ironmaking.Its technical scheme is: this utility model uses two-layer ceramic mat structure, its at the middle and upper levels ceramic blanket be made up of outer shroud and inner circle again, outer shroud and lower floor's ceramic blanket of upper strata ceramic blanket are constituted by heat conductivity, anti-slag ferrum aggressivity all preferably material, and the material that the inner circle of upper strata ceramic blanket is preferable by thermal insulation, anti-slag ferrum aggressivity is relatively poor is constituted.Owing to the inner circle material heat conductivity of upper strata ceramic blanket is low, beneficially furnace bottom insulation, improves furnace bottom core temperature, is conducive to enlivening cupola well；Meanwhile, the inner circle material anti-slag ferrum aggressivity of upper strata ceramic blanket is poor, advantageously forms " the bottom of a pan " shape furnace bottom and corrodes, not only improve and enliven cupola well, optimisation technique index, be conducive to again weakening slag iron hoop stream and corrode, " as foot " corrodes to avoid cupola well edge to occur, improves the service life of cupola well.
Description
Technical field
This utility model relates to the ceramic blanket placed during a kind of blast furnace ironmaking at Blast Furnace Bottom, belongs to blast furnace ironmaking equipment skill
Art field.
Background technology
In blast furnace actual motion, when Blast Furnace Bottom core keep higher temperature, furnace bottom be a certain degree of " the bottom of a pan " shape just
When often corroding, blast furnace is workable, and furnace cylinder working enlivens, and easily obtains preferable economic and technical norms.Furnace bottom is in " the bottom of a pan " shape
Erosion also helps the extremely burnt post of cupola well and floats, and is conducive to opening furnace bottom molten iron passage, thus it is strong to be substantially reduced cupola well slag iron hoop stream
Degree, can effectively prevent cupola well abnormal erosion, improves cupola well service life.
Blast Furnace Bottom ceramic blanket is a kind of resistance to material of High-Alumina, has preferable heat-proof quality and anti-slag ferrum erosion performance, right
Reduce furnace bottom thermal loss and alleviation furnace bottom carbon brick corrodes and has important function.Traditional ceramics is leveled up and is built on furnace bottom carbon brick,
Using identical material, general point of upper and lower two-layer, every layer thickness is identical.Reserved 80mm dilatation joint between two-layer ceramic pad and ring carbon,
Corundum or carbon element ramming mass is used to tamp.The material that traditional ceramics pad generally uses has compound palm corundum, corundum-mullite, micro-
Hole corundum etc., in these materials, the heat conductivity of micropore corundum, anti-slag ferrum aggressivity are all preferable, and heat conductivity can reach 7W/M.K,
The heat conductivity of other material, anti-slag ferrum aggressivity then deviation.Ceramic blanket such as uses single micropore corundum material, then furnace bottom is difficult to shape
Become pan bottom shape to corrode, and because its heat conductivity is higher, higher furnace bottom core temperature is the most unfavorable to controlling；And such as use single corundum
Low heat conductivity, the low anti-slag ferrum aggressivity materials such as mullite or compound palm corundum, although beneficially raising furnace bottom core temperature, but stove
The end, the most easily forms " groove " even shape " as foot " shape abnormal erosion, when the dead Jiao Dui of cupola well sink seat at furnace bottom time more so, to cupola well
Long-lived unfavorable.
Therefore, the ceramic blanket of currently used traditional single material can not meet Blast Furnace Bottom to improving furnace bottom core temperature
Spending, make furnace bottom corrode beneficially blast furnace operating and the requirement of index optimization, beneficially cupola well longevity in " the bottom of a pan " shape, extremely having must
To be improved.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Blast Furnace Bottom pottery with composite construction and performance
Porcelain pad, this Blast Furnace Bottom ceramic blanket can make furnace bottom core keep higher temperature, makes furnace bottom corrode and is easier to form " the bottom of a pan " shape
Geologic erosion, beneficially blast furnace operating and index optimization, extend cupola well service life.
The technical scheme solving above-mentioned technical problem is:
A kind of Blast Furnace Bottom ceramic blanket with composite construction and performance, it is made up of the ceramic blanket that two-layer is circular, upper strata
The diameter of ceramic blanket is placed with one heart more than the diameter of lower floor's ceramic blanket, upper strata ceramic blanket and lower floor's ceramic blanket, and its improvements are,
Upper strata ceramic blanket is made up of outer shroud and inner circle, uses top to build between outer shroud and the inner circle of upper strata ceramic blanket, fills corundum in puzzle joint
Matter mud, outer shroud uses heat conductivity, anti-slag ferrum aggressivity all preferably material, and inner circle employing thermal insulation is preferable, anti-slag ferrum corrodes
Property relatively poor material, lower floor's ceramic blanket generally heat conductivity, anti-slag ferrum aggressivity all preferably material.
The above-mentioned Blast Furnace Bottom ceramic blanket with composite construction and performance, between described upper strata ceramic blanket and lower floor's ceramic blanket
Use top to build, puzzle joint is filled corundum mud.
The above-mentioned Blast Furnace Bottom ceramic blanket with composite construction and performance, outside described upper strata ceramic blanket and lower floor's ceramic blanket
Reserved dilatation joint between circumferential edges and cupola well ring carbon, and tamp with corundum, carbon rammed mass.
The above-mentioned Blast Furnace Bottom ceramic blanket with composite construction and performance, the width of the outer shroud of described upper strata ceramic blanket is upper
The 1/3 of layer ceramic blanket radius, the radius of inner circle is the 2/3 of upper strata ceramic blanket radius.
The beneficial effects of the utility model are:
This utility model use two-layer ceramic mat structure, its at the middle and upper levels ceramic blanket be made up of outer shroud and inner circle again, upper strata make pottery
The outer shroud of porcelain pad and lower floor's ceramic blanket are constituted by heat conductivity, anti-slag ferrum aggressivity all preferably material, upper strata ceramic blanket interior
The material that circle is preferable by thermal insulation, anti-slag ferrum aggressivity is relatively poor is constituted.Inner circle material heat conduction system due to upper strata ceramic blanket
Number is low, beneficially furnace bottom insulation, improves furnace bottom core temperature, is conducive to enlivening cupola well；Two-layer ceramic pad is the most isometrical up and down, has
It is beneficial to improve the cooling to ceramic blanket edge, upper strata, strengthens ceramic blanket edge, upper strata anti-slag ferrum erosiveness；Meanwhile, upper strata pottery
The inner circle material anti-slag ferrum aggressivity of pad is poor, advantageously forms " the bottom of a pan " shape furnace bottom and corrodes, not only improve and enliven cupola well, optimizes skill
Art index, is conducive to again weakening slag iron hoop stream and corrodes, it is to avoid cupola well edge occurs that " as foot " corrodes, and improves the use longevity of cupola well
Life.
Accompanying drawing explanation
Fig. 1 is structure of the present utility model and scheme of installation；
Fig. 2 is structure top view of the present utility model.
In figure, labelling is as follows: furnace bottom carbon brick 1, cupola well ring carbon 2, dilatation joint 3, upper strata ceramic blanket 4, outer shroud 5, inner circle 6, lower floor
Ceramic blanket 7.
Detailed description of the invention
This utility model is made up of upper strata ceramic blanket 4, lower floor's ceramic blanket 7 two-layer round ceramic pad, upper strata ceramic blanket 4 straight
Footpath is more than the diameter of lower floor's ceramic blanket 7, and upper strata ceramic blanket 4 and lower floor's ceramic blanket 7 are placed with one heart.
Showing in figure, upper strata ceramic blanket 4 is made up of outer shroud 5 and inner circle 6.Outer shroud 5 uses heat conductivity, anti-slag ferrum aggressivity equal
Preferably material, such as micropore corundum material.Inner circle 6 uses the material that thermal insulation is preferable, anti-slag ferrum aggressivity is relatively poor, as just
The beautiful material such as mullite or compound palm corundum.Owing to the inner circle 6 material heat conductivity of upper strata ceramic blanket is low, beneficially furnace bottom is protected
Temperature, improves furnace bottom core temperature, is conducive to enlivening cupola well；Meanwhile, the inner circle 6 material anti-slag ferrum aggressivity of upper strata ceramic blanket 4 is poor, has
It is beneficial to form " the bottom of a pan " shape furnace bottom corrode, not only improves and enliven cupola well, optimisation technique index, be conducive to again weakening slag iron hoop stream and invade
Erosion, it is to avoid cupola well edge occurs that " as foot " corrodes, and improves the service life of cupola well.
Showing in figure, lower floor's ceramic blanket 7 generally heat conductivity, anti-slag ferrum aggressivity all preferably material, such as micropore corundum
Material.
Figure shows, uses top to build between outer shroud 5 and the inner circle 6 of upper strata ceramic blanket 4, do not set dilatation joint, but in gap
Corundum mud must be filled full.
Figure shows, reserved dilatation joint between upper strata ceramic blanket 4 and the neighboring of lower floor's ceramic blanket 7 and cupola well ring carbon 2
3, and tamp with corundum, carbon rammed mass.
Showing in figure, the width of the outer shroud of upper strata ceramic blanket is the 1/3 of upper strata ceramic blanket radius, and the radius of inner circle is upper strata
The 2/3 of ceramic blanket radius.
Embodiment of the present utility model is as follows:
Embodiment 1
Furnace bottom use two-layer ceramic pad, every layer of 400mm thickness, below one layer of whole employing micropore corundum material, above one layer
The width of outer shroud 5 part be 1/3 ceramic blanket radius, use micropore corundum material, heat conductivity 7W/m*k, the half of inner circle part
Footpath is 2/3 ceramic blanket radius, uses corundum-mullite material, heat conductivity < 4W/m*k.Two-layer ceramic pad, upper strata pottery up and down
All use top to build between unlike material inner circle 6 and the outer shroud 5 of pad 4, do not set dilatation joint.Between two-layer ceramic pad and cupola well ring carbon 2
Preset 80mm dilatation joint.
Embodiment 2
Furnace bottom use two-layer ceramic pad, every layer of 400mm thickness, below one layer of whole employing micropore corundum material, above one layer
The width of outer shroud 5 part be 1/3 ceramic blanket radius, use micropore corundum material, heat conductivity 7W/m*k, the half of inner circle part
Footpath is 2/3 ceramic blanket radius, uses compound palm corundum material, heat conductivity < 4W/m*k.Two-layer ceramic pad, upper strata pottery up and down
All use top to build between unlike material inner circle 6 and the outer shroud 5 of pad 4, do not set dilatation joint.Between two-layer ceramic pad and cupola well ring carbon 2
Preset 80mm dilatation joint.
Embodiment 3
Furnace bottom use two-layer ceramic pad, every layer of 400mm thickness, below one layer of whole employing micropore corundum material, above one layer
The width of outer shroud 5 part be 1/3 ceramic blanket radius, use micropore corundum material, heat conductivity 7W/m*k, the half of inner circle part
Footpath is 2/3 ceramic blanket radius, uses Low Creep High Alumina Bricks, heat conductivity < 4W/m*k.Two-layer ceramic pad, upper strata ceramic blanket 4 up and down
Unlike material inner circle 6 and outer shroud 5 between all use top build, do not set dilatation joint.Preset between two-layer ceramic pad and cupola well ring carbon 2
80mm dilatation joint.
Claims (4)
1. having a Blast Furnace Bottom ceramic blanket for composite construction and performance, it is made up of the ceramic blanket that two-layer is circular, makes pottery in upper strata
The diameter of porcelain pad (4) is placed with one heart more than the diameter of lower floor's ceramic blanket (7), upper strata ceramic blanket (4) and lower floor's ceramic blanket (7), its
It is characterised by: upper strata ceramic blanket (4) is made up of outer shroud (5) and inner circle (6), the outer shroud (5) of upper strata ceramic blanket (4) and inner circle (6)
Between use top to build, puzzle joint is filled corundum mud, outer shroud (5) uses heat conductivity, anti-slag ferrum aggressivity all preferably material,
Inner circle (6) use thermal insulation preferably, the relatively poor material of anti-slag ferrum aggressivity, lower floor's ceramic blanket (7) generally heat conductivity, anti-
Slag ferrum aggressivity all preferably material.
The Blast Furnace Bottom ceramic blanket with composite construction and performance the most according to claim 1, it is characterised in that: on described
Use top to build between layer ceramic blanket (4) and lower floor's ceramic blanket (7), puzzle joint is filled corundum mud.
The Blast Furnace Bottom ceramic blanket with composite construction and performance the most according to claim 2, it is characterised in that: on described
Reserved dilatation joint (3) between layer ceramic blanket (4) and the neighboring of lower floor's ceramic blanket (7) and cupola well ring carbon (2), and use corundum
Matter, carbon rammed mass tamp.
The Blast Furnace Bottom ceramic blanket with composite construction and performance the most according to claim 3, it is characterised in that: on described
Width is upper strata ceramic blanket radius the 1/3 of the outer shroud (5) of layer ceramic blanket (4), the radius of inner circle (6) is upper strata ceramic blanket radius
2/3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620621395.1U CN205676489U (en) | 2016-06-22 | 2016-06-22 | A kind of Blast Furnace Bottom ceramic blanket with composite construction and performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620621395.1U CN205676489U (en) | 2016-06-22 | 2016-06-22 | A kind of Blast Furnace Bottom ceramic blanket with composite construction and performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205676489U true CN205676489U (en) | 2016-11-09 |
Family
ID=57431609
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620621395.1U Active CN205676489U (en) | 2016-06-22 | 2016-06-22 | A kind of Blast Furnace Bottom ceramic blanket with composite construction and performance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111349732A (en) * | 2020-03-11 | 2020-06-30 | 广西柳州钢铁集团有限公司 | Blast furnace hearth structure differentiation processing method |
| CN111560486A (en) * | 2020-05-29 | 2020-08-21 | 鞍钢股份有限公司 | Blast furnace bottom building method for guiding furnace bottom to be in shape of boiler bottom |
-
2016
- 2016-06-22 CN CN201620621395.1U patent/CN205676489U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111349732A (en) * | 2020-03-11 | 2020-06-30 | 广西柳州钢铁集团有限公司 | Blast furnace hearth structure differentiation processing method |
| CN111560486A (en) * | 2020-05-29 | 2020-08-21 | 鞍钢股份有限公司 | Blast furnace bottom building method for guiding furnace bottom to be in shape of boiler bottom |
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| GR01 | Patent grant |