CN205443352U - High slag iron runner apron - Google Patents
High slag iron runner apron Download PDFInfo
- Publication number
- CN205443352U CN205443352U CN201521119664.6U CN201521119664U CN205443352U CN 205443352 U CN205443352 U CN 205443352U CN 201521119664 U CN201521119664 U CN 201521119664U CN 205443352 U CN205443352 U CN 205443352U
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- cover plate
- iron runner
- blast furnace
- slag iron
- change material
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Abstract
The utility model provides a high slag iron runner apron, including the apron casing, apron casing bottom is equipped with the phase change material layer, and apron casing upper surface is equipped with hoisting hook. This high slag iron runner apron high slag iron runner apron has increased the phase change material layer, and when the blast furnace casting, phase change material absorbs the molten iron and the slag spreads into the heat of lapping the casing into, and when not tapping a blast furnace, phase change material's heat releases again, and the periodic heating load of effectively avoiding having now of refractory material inside lining changes the problem, has improved high slag iron runner apron's thermal insulation function, has prolonged its life.
Description
Technical field
This utility model belongs to technical field of blast furnace ironmaking, is specifically related to a kind of blast furnace slag iron runner cover plate.
Background technology
Blast furnace needs regularly to discharge molten iron and slag; slag iron runner is molten iron and the passage of slag flowing, realizes slag sluicing system in flow process simultaneously, and blast furnace slag iron runner needs to cover cover plate; its Main Function is the personal safety of operator of keeping the scene intact, it is to avoid touch molten iron and the slag of high temperature；Next to that reduce molten iron and the heat loss of slag, it is ensured that good mobility is beneficial to slag sluicing system；3rd is to prevent the dust in molten iron and slag from escaping, and protects cast house operating environment.
But, conventional slag iron runner cover plate still has higher temperature, constitutes a threat to the safety of blast furnace workman；And general slag iron runner cover plate is fragile, its main cause is that the discontinuity of blast furnace casting causes the cover plate cyclical heat of resistance to material load variations, and cover plate inner lining refractory falls off under the repeated action of rapid heat cycle.The cover plate losing refractory material cannot play heat insulation effect, and when tapping a blast furnace, cover plate head temperature becomes potential safety hazard by significantly raised.
Accordingly, it would be desirable to existing conventional slag iron runner cover plate is improved, make slag iron runner cover plate temperature maintain lower temperature, improve the working environment of blast furnace discharge yard.
Utility model content
The purpose of this utility model is to overcome the problem that existing slag iron runner cover plate heat-blocking action is poor, service life is short.
To this end, this utility model provides a kind of blast furnace slag iron runner cover plate, including cover plate housing, described cover plate housing bottom is provided with phase-change material layers, and cover plate housing upper surface is provided with Lift hook.
Further, above-mentioned cover plate housing is groove structure, and phase-change material layers is connected in this groove.
Further, it is provided with many reinforcements in above-mentioned cover plate housing.
Further, the above-mentioned many crisscross distributions of reinforcement.
Further, above-mentioned Lift hook has four, is separately positioned on the corner of cover plate housing.
Further, above-mentioned phase-change material layers uses mass fraction to be 68.1%KCl and 31.9%ZnCl2Mixture prepare phase change heat storage material composition.
Further, above-mentioned phase-change material layers uses NaNO3Or KNO3Heat-storing material is made.
The beneficial effects of the utility model: this blast furnace slag iron runner cover plate that this utility model provides uses phase-change material layers to make the liner of slag iron runner cover plate, by phase transformation absorption heat, temperature keeps constant, effectively prevent existing cover plate liner to fall off under the repeated action of rapid heat cycle, the problem that cover plate cannot play heat-blocking action, improve slag iron runner cover plate effect of heat insulation, extend its service life.
Below with reference to accompanying drawing, this utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is the top view of this utility model blast furnace slag iron runner cover plate.
Fig. 2 is the A-A sectional view of Fig. 1.
Description of reference numerals: 1, phase-change material layers；2, cover plate housing；3, reinforcement；4, Lift hook.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
As depicted in figs. 1 and 2, in order to improve blast furnace slag iron runner cover plate heat-blocking action, extend the life-span of slag iron runner cover plate, present embodiments provide a kind of blast furnace slag iron runner cover plate, including cover plate housing 2, being provided with phase-change material layers 1 bottom described cover plate housing 2, cover plate housing 2 upper surface is provided with Lift hook 4.
Wherein, concrete, described cover plate housing 2 is groove structure, and phase-change material layers 1 is connected in this groove, fixing more firm between phase-change material layers 1 and cover plate housing 2.
In order to strengthen the rigidity of this blast furnace slag iron runner cover plate, in described cover plate housing 2, it is provided with many reinforcements 3, these many crisscross settings of reinforcement 3.
And stablizing for hoisting process, described Lift hook 4 has four, is separately positioned on the corner of cover plate housing 2.
The size of the blast furnace slag iron runner cover plate of the present embodiment matches with the size of actual slag iron runner.
When blast furnace casting, heat is imported phase-change material layers 1 by cover plate housing 2 by the heat of molten iron and slag, and the phase-change material of phase-change material layers 1 absorbs heat by phase transformation and temperature is basically unchanged, thus ensures that cover plate housing 2 top will not steep temperature rise；When blast furnace does not taps a blast furnace, energy is released in air by phase-change material layers 1 by cover plate housing 2.
In the present embodiment, the phase-change material that phase-change material layers 1 is selected can have multiple, such as 68.1%KCl and 31.9%ZnCl2Mixture, 38.5%MgCl2With the mixture of 61.5%NaCl, single NaNO3、KNO3Deng, which kind of phase-change material it selects depend primarily on blast furnace itself.Long for its each tapping duration of large blast furnace, just use the material that phase transition temperature is higher, such as single NaNO3Or KNO3Heat-storing material；And short for its each tapping duration of small furnace, just using phase transition temperature is 68.1%KCl and 31.9%ZnCl than relatively low material, such as mass fraction2Mixture prepare phase change heat storage material, its fusing point is 235 DEG C, and heat of fusion is 198kJ/kg.
In sum, this blast furnace slag iron runner cover plate that this utility model provides adds phase-change material layers, when blast furnace casting, phase-change material absorbs molten iron and the heat of slag incoming cover plate housing, when not tapping a blast furnace, the heat of phase-change material discharges again, is prevented effectively from existing refractory lining cyclical heat load variations problem, improve the heat-blocking action of blast furnace slag iron runner cover plate, extend its service life.
Exemplified as above is only to illustration of the present utility model, is not intended that the restriction to protection domain of the present utility model, within the every and same or analogous design of this utility model belongs to protection domain of the present utility model.
Claims (6)
1. a blast furnace slag iron runner cover plate, including cover plate housing (2), it is characterised in that: described cover plate housing (2) bottom is provided with phase-change material layers (1), and cover plate housing (2) upper surface is provided with Lift hook (4).
2. blast furnace slag iron runner cover plate as claimed in claim 1, it is characterised in that: described cover plate housing (2) is groove structure, and phase-change material layers (1) is connected in this groove.
3. blast furnace slag iron runner cover plate as claimed in claim 1 or 2, it is characterised in that: it is provided with many reinforcements (3) in described cover plate housing (2).
4. blast furnace slag iron runner cover plate as claimed in claim 3, it is characterised in that: the crisscross distribution of described many reinforcements (3).
5. blast furnace slag iron runner cover plate as claimed in claim 1, it is characterised in that: described Lift hook (4) has four, is separately positioned on the corner of cover plate housing (2).
6. blast furnace slag iron runner cover plate as claimed in claim 1, it is characterised in that: described phase-change material layers (1) uses NaNO3Or KNO3Heat-storing material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521119664.6U CN205443352U (en) | 2015-12-30 | 2015-12-30 | High slag iron runner apron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521119664.6U CN205443352U (en) | 2015-12-30 | 2015-12-30 | High slag iron runner apron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205443352U true CN205443352U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521119664.6U Active CN205443352U (en) | 2015-12-30 | 2015-12-30 | High slag iron runner apron |
Country Status (1)
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| CN (1) | CN205443352U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105400918A (en) * | 2015-12-30 | 2016-03-16 | 中冶南方工程技术有限公司 | Cover plate for slag-iron runner of blast furnace |
-
2015
- 2015-12-30 CN CN201521119664.6U patent/CN205443352U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105400918A (en) * | 2015-12-30 | 2016-03-16 | 中冶南方工程技术有限公司 | Cover plate for slag-iron runner of blast furnace |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |