CN208008840U - A kind of erosion leading type step furnace bottom cupola well - Google Patents
A kind of erosion leading type step furnace bottom cupola well Download PDFInfo
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- CN208008840U CN208008840U CN201820052518.3U CN201820052518U CN208008840U CN 208008840 U CN208008840 U CN 208008840U CN 201820052518 U CN201820052518 U CN 201820052518U CN 208008840 U CN208008840 U CN 208008840U
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Abstract
A kind of erosion leading type step furnace bottom cupola well, including furnace body, first liner is set in furnace body, second liner is set in the first liner, 3-5 step is arranged in second liner bottom, the height and position of 3-5 step reduces successively from outside to inside, and the minimum step of height and position is circle, remaining step is circular ring shape.The utility model can integrally extend the service life of furnace bottom cupola well, extend blast furnace furnace service life to whole.Meanwhile the utility model has the advantages of simple structure and easy realization, the prolonging campaign thus brought understands the benefit in terms of indirect belt comes production efficiency, safety, economic dispatch.
Description
Technical field
The utility model is related to cupola well, especially a kind of erosion leading type step furnace bottom cupola well.
Background technology
Blast furnace is the key equipment of ironmaking production, in order to improve production efficiency, improves the production iron of unit heat size, smelts iron work
Author does one's utmost to extend blast furnace furnace service life, by prolonging campaign as one of the important goal of pursuit.Whether judge generation stove labour
Termination Main Basiss are cupola well furnace bottoms, furnace bottom cupola well high temperature liquid iron it is long-term wash away erosion under, bricking is thinned, cupola well can occur
The major accidents such as burn-through, the termination for causing stove to be used as a servant.Existing furnace bottom hearth structure is all made of the form at open hearth bottom, i.e., from furnace bottom stove
Cylinder intersection to blast furnace center is a plane.When due to blast fumance, blast furnace center is located dynamic change for a long time
Dead coke heap, it is in very much, when molten iron is discharged circulation state, therefore, furnace bottom hearth erosion and molten iron flow to corrode slower than intersection more
The bottom of a pan is formed and is corroded, the life of the blast furnace is shorter.
Utility model content
The purpose of this utility model is to provide a kind of erosion leading type step furnace bottom cupola wells, can reduce the bottom of a pan and invade
Erosion improves the life of the blast furnace.
Technical solution adopted by the utility model to solve its technical problems is：A kind of erosion leading type step furnace bottom stove
Cylinder, including furnace body, furnace body is interior to be arranged the first liner, the second liner is arranged in the first liner, 3-5 platform is arranged in the second liner bottom
The height and position of rank, 3-5 step reduces successively from outside to inside, and the minimum step of height and position is circle, remaining step is circle
Annular.
The utility model in order to further solve its technical problem used by technical solution be：The 3-5 step
Cross-sectional width is consistent.Difference in height between the highest step of height and position and the minimum step of height and position is L, L 500mm,
Difference in height >=50mm between adjacent step.The first inclined-plane and second of annular is respectively set tiltedly in the second liner top
Face, the first inclined-plane are located above the second inclined-plane, and the first inclined-plane is connect with the second inclined-plane by vertical plane.Second liner
Thinnest part thickness >=200mm.
The utility model has the beneficial effects that：The utility model can play optimization bottom hearth of blast furnace structure, and in height
Beneficial intervention is carried out to the flowing of erosion location and molten iron, clinker when stove produces, makes blast furnace erosion pattern by common garlic
Shape becomes pot bottom-shape, mutually coordinates with furnace bottom hearth structure, extends the life of the blast furnace.The utility model changes traditional open hearth completely
Bottom design concept focuses more on blast furnace realistic application conditions, physical interventions is carried out to the original factor for influencing the life of the blast furnace, to invading
Erosion pattern guides, and blast furnace is promoted to form efficient, long-lived state in use, moreover it is possible to save material, reduce and build
Project cost.Bottom hearth of blast furnace is using this structure and after going into operation, and molten iron is easier to collect at blast furnace center when non-slagging iron,
Discharge slag iron when blast furnace in slag iron circulation state can mitigate significantly, thus significantly reduce furnace bottom cupola well junction it is various because
The various erosion chances such as chemistry caused by slag iron flowing, thermal stress variation, increase the erosion chance at blast furnace center, keep blast furnace final
Erosion shape by garlic shape towards pot bottom-shape change, since bearth brick lining is very thick, compare resistant to corrosion.The utility model can be whole
The service life for extending furnace bottom cupola well extends blast furnace furnace service life to whole.Meanwhile the utility model has the advantages of simple structure and easy realization,
Thus the prolonging campaign brought understands the benefit in terms of indirect belt comes production efficiency, safety, economic dispatch.
Description of the drawings：
Fig. 1 is the utility model structure diagram.
Specific implementation mode
The first liner is arranged in furnace body 1 as shown in Figure 1, including furnace body 1 in a kind of erosion leading type step furnace bottom cupola well
2, the second liner 3 is set in first liner 2,3 bottom of the second liner is arranged 3-5 step 4, the height and position of 3-5 step 4 by
Outer to be reduced successively to interior, the minimum step 4 of height and position is circle, remaining step 4 is circular ring shape.This structure can play excellent
Change bottom hearth of blast furnace structure, and beneficial intervention is carried out to the flowing of erosion location and molten iron, clinker in blast fumance, makes
Blast furnace erosion pattern becomes pot bottom-shape from common garlic shape, mutually coordinates with furnace bottom hearth structure, extends the life of the blast furnace.This knot
Structure changes traditional open hearth bottom design concept completely, focuses more on blast furnace realistic application conditions, to influencing the original of the life of the blast furnace
Beginning factor carries out physical interventions, is guided to erosion pattern, and blast furnace is promoted to form efficient, long-lived shape in use
State, moreover it is possible to save material, reduce construction engineering cost.Bottom hearth of blast furnace is using this structure and after going into operation, when non-slagging iron
Molten iron is easier to collect at blast furnace center, and slag iron circulation state can mitigate significantly in blast furnace when discharging slag iron, thus subtract significantly
The various erosion chances such as the light various chemistry caused by slag iron flows of furnace bottom cupola well junction, thermal stress variation, increase high
The erosion chance at stove center, the erosion shape for keeping blast furnace final is changed by garlic shape towards pot bottom-shape, since bearth brick lining is very thick,
Compare resistant to corrosion.Therefore this structure can integrally extend the service life of furnace bottom cupola well, extend blast furnace furnace service life to whole.Together
When, it is this to have the advantages of simple structure and easy realization, in terms of the prolonging campaign meeting indirect belt thus brought comes production efficiency, safety, economic dispatch
Benefit.When furnace bottom cupola well uses the structure type of amorphous refractory, no matter the working face contacted with slag iron uses corundum
The heat-barrier material of matter or the carbonaceous material of heat conduction matter can be divided into from furnace bottom cupola well junction according to the size of cupola well diameter
The height difference of multiple step slope aspects center, furnace bottom cupola well point of interface and hearth center is preferably 500mm or so, to reduce brick type,
There should be several steps according to cupola well diameter by length standard accounting of 1500mm, be usually no more than 5 ranks, determine number of steps
After return calculation length of bench, it is desirable that length of bench is almost the same, difference be no more than 1000mm.With in furnace bottom cupola well point of interface to furnace bottom
The height difference 500mm of the heart is that altitude datum calculates the height for determining each step, and height does not require unanimously, but is not preferably less than 50mm,
Can rationally determine brick, it is principle to reduce brick quantity and difficulty of construction.Each step radical length is preferably 1500mm or so,
The suitable levels of design of adjacent step height are considered as a whole, reduce the type of brick to the greatest extent, convenient for making and constructing.
4 cross-sectional width of 3-5 step is consistent.
Difference in height between the highest step 4 of height and position and the minimum step 4 of height and position is L, L 500mm, adjacent
Step 4 between difference in height >=50mm.This structure can reduce the brick type for being laid with step.
The first inclined-plane 5 and the second inclined-plane 6 of annular is respectively set in second liner, 3 top, and the first inclined-plane 5 is located at the
Two inclined-planes, 6 top, the first inclined-plane 5 is connect with the second inclined-plane 6 by vertical plane.This structure is convenient for charging, when avoiding charging, stove
Slag attaches on 3 side wall of the second liner.
Thinnest part thickness >=200mm of second liner 3.This structure can play certain support at blow-on initial stage
Erosion-resistant effect promotes cupola well that can keep good working order, and the second liner of furnace bottom 3 is delayed to start the time corroded,
To improve the life of bottom.
Specific embodiment of the present utility model is described above in association with attached drawing, but these explanations cannot be understood to
The scope of the utility model is limited, the technology contents of the not detailed description of the utility model are known technology.
Claims (5)
1. a kind of erosion leading type step furnace bottom cupola well, it is characterised in that：Including furnace body（1）, furnace body（1）In interior setting first
Lining（2）, the first liner（2）The second liner of interior setting（3）, the second liner（3）3-5 step is arranged in bottom（4）, 3-5 step
（4）Height and position reduce successively from outside to inside, the minimum step of height and position（4）For circle, remaining step（4）For annulus
Shape.
2. a kind of erosion leading type step furnace bottom cupola well as described in claim 1, it is characterised in that：The 3-5 platform
Rank（4）Cross-sectional width is consistent.
3. a kind of erosion leading type step furnace bottom cupola well as described in claim 1, it is characterised in that：Height and position is highest
Step（4）The minimum step with height and position（4）Between difference in height be L, L 500mm, adjacent step（4）Between height
Spend difference >=50mm.
4. a kind of erosion leading type step furnace bottom cupola well as described in claim 1, it is characterised in that：Second liner
（3）The first inclined-plane of annular is respectively set in top（5）With the second inclined-plane（6）, the first inclined-plane（5）Positioned at the second inclined-plane（6）Top,
First inclined-plane（5）With the second inclined-plane（6）It is connected by vertical plane.
5. a kind of erosion leading type step furnace bottom cupola well as described in claim 1, it is characterised in that：Second liner
（3）Thinnest part thickness >=200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052518.3U CN208008840U (en) | 2018-01-12 | 2018-01-12 | A kind of erosion leading type step furnace bottom cupola well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052518.3U CN208008840U (en) | 2018-01-12 | 2018-01-12 | A kind of erosion leading type step furnace bottom cupola well |
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| Publication Number | Publication Date |
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| CN208008840U true CN208008840U (en) | 2018-10-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2018
- 2018-01-12 CN CN201820052518.3U patent/CN208008840U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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