CN201785412U - Blast furnace copper cooling wall thermal load adjusting device - Google Patents
Blast furnace copper cooling wall thermal load adjusting device Download PDFInfo
- Publication number
- CN201785412U CN201785412U CN2009202543308U CN200920254330U CN201785412U CN 201785412 U CN201785412 U CN 201785412U CN 2009202543308 U CN2009202543308 U CN 2009202543308U CN 200920254330 U CN200920254330 U CN 200920254330U CN 201785412 U CN201785412 U CN 201785412U
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- blast furnace
- cooling
- copper cooling
- thermal load
- copper
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Abstract
A blast furnace copper cooling wall thermal load adjusting device belongs to the technical field of blast furnace body cooling equipment and is used for realizing flexible regulation and control of a thermal load at a copper cooling position. The technical scheme of the adjusting device includes that the device comprises a bypass pipeline, ball valves, a thermoelectric coupling and a flow meter, two ends of the bypass pipeline are connected with series-connected circulation soft cooling water channels of a furnace body copper cooling wall section, the ball valves are respectively mounted at the connection positions of the two ends of the bypass pipeline, and the thermoelectric coupling and the flow meter are mounted in the middle of the bypass pipeline. The blast furnace copper cooling wall thermal load adjusting device enables water volume of the copper cooling position to be flexibly adjusted by adding the bypass pipeline to the copper cooling wall section of a soft water sealed circulating system and additionally installing the flow meter, the ball valves and the thermoelectric coupling on the bypass pipeline, avoids influence on cooling strength of other positions of a furnace body during adjustment, can solve the problems of difficult adjustment of cooling water volume due to the series connection mode of cooling water of the blast furnace body, easy accretion of a furnace wall at the copper cooling position, difficult slag crust stabilization and the like, realizes flexible regulation and control of the thermal load at the copper cooling position, and provides middle adjustment as a novel effective operation method for blast furnace operation.
Description
Technical field
The utility model relates to a kind of thermal load regulation device of blast furnace copper cooling wall, belongs to blast furnace cooling apparatus technical field.
Background technology
The blast furnace cooling is to guarantee blast furnace safety operation and long-lived prerequisite, soft water airtight circulating cooling system is widely used in the blast furnace cooling at present, soft water airtight circulating cooling system is by the cooling stave cooling that circulates, and copper cooling wall has advantages such as thermal conductivity is good, the little working temperature of thermal resistance is low, thickness is little, in use obtained gratifying effect, adopt both at home and abroad in numerous and confused utilization of big-and-middle-sized blast furnace of cast-iron cooling wall repair, the overhaul chance uses copper cooling wall instead.
The thermal load size is a blast furnace refrigerative foundation, and the heat flow rate per unit area that it can in time reflect liner, cooling stave and is born, and then the control hot-fluid that takes effective measures are with protection cooling stave and furnace shell.Along with coal gas in the State of Blast Furnace flows out existing variation, have influence on the heat transfer condition of blast furnace cooling stave, furnace heat load changes.The series connection type of cooling that blast furnace generally adopts makes the thermal load regulation and control at high hotplate body position have difficulty.
In actual production process, find, because the thermal conductivity of copper cooling wall is higher more than 10 times than cast-iron cooling wall, cause in same soft water closed circulation system copper cold spots thermal load too small, that furnace wall is tied easily is thick, the operation type of furnace is unreasonable, and is very unfavorable to blast furnace steady running.Simultaneously, injecting coal quantity changes, collapses that material, wind-warm syndrome fluctuation, blast furnace permeability change, furnace temperature changes, the factor that has some setbacks or the like of tapping a blast furnace of slagging tap all can cause the variation of copper cold spots hot-fluid, because thermal conductivity is good, copper cooling wall is very responsive to the hot-fluid reacting condition, adheres to slag crust and is difficult for stable.As look the working of a furnace and copper cold spots thermal load reduction cooling intensity, the then whole body of heater soft water closed circulation system water yield all can be affected, and causes cooling position cooling water inflow deficiencies such as furnace throat, shaft top, shaft middle part, cupola well.
Therefore need a covering device to make blast furnace realize the middle part adjustment---change according to conditions of blast furnace, in time by cold section thermal load of control copper, control thickness of the slag crust in reasonable level, make slag crust stable, difficult drop-off does not influence smooth operation of furnace.Do not influence simultaneously the cooling performance at other circulation soft water cooling positions such as furnace throat, shaft top, shaft middle part, cupola well again.
Summary of the invention
Technical problem to be solved in the utility model provide a kind of can solve cooling water inflow that blast furnace water coolant series connection form causes regulate difficulty, copper cold spots furnace wall easily thick, the slag crust of knot be difficult for problems such as stable, realize blast furnace copper cooling wall thermal load dispensing device to the flexible regulation and control of copper cold spots thermal load.
The technical scheme that solves the problems of the technologies described above is:
A kind of blast furnace copper cooling wall thermal load dispensing device, it is made up of by-pass line, ball valve, thermopair, under meter, the two ends of by-pass line are connected with the series circulation soft water cooling water channel of body of heater copper cooling wall section, at the junction at two ends difference mounting ball valve, thermopair and under meter are installed in the by-pass line middle part.
The utility model adds bypass in soft water closed circulation system copper cooling wall section, the shunting copper cold spots water yield, and on by-pass line, install under meter, ball valve and thermopair additional, make the copper cold spots water yield can accomplish flexible adjustment, and do not influence other position cooling intensity of body of heater simultaneously adjusting, can solve cooling water inflow adjusting difficulty, copper cold spots furnace wall problems such as easily knot is thick, slag crust is difficult for stablizing that blast furnace water coolant series connection form causes, flexible regulation and control have been realized, for blast furnace operating provides the middle part adjustment these new valid function means to copper cold spots thermal load.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Mark is as follows among the figure: metallic hose 1, weldless steel tube 2, ball valve 3, under meter 4, thermopair 5, series circulation soft water cooling water channel 6, Y-tube 7.
Embodiment
Show among the figure that the utility model is made up of by-pass line, ball valve 3, thermopair 5, under meter 4, by-pass line comprises metallic hose 1 and weldless steel tube 2.Metallic hose 1 by Y-tube 7 be connected with the series circulation soft water cooling water channel 6 of body of heater copper cooling wall section.At the junction, two ends of by-pass line difference mounting ball valve 3, thermopair 5 and under meter 4 are installed in the middle part of the weldless steel tube 2 of by-pass line.
The blast furnace of an embodiment of the present utility model is full cooling wall structure, 16 layers of total cooling staves.Wherein, the 4 layers of cooling stave (the 6th～9 layer) that are positioned at bosh, furnace bosh and restoration of lower stack are copper cooling wall.Blast furnace cooling stave water yield segmentation control.Totally 4 layers of blast furnace copper cooling walls, 45 every layer, every 4 water pipes, totally 180 water pipes carry out bypass according to Fig. 1 and connect on every water pipe.Avoid the lifting point on the stove skin during installation, give the existing enough operating spaces of valve.
The utility model provides except that the top charging system is adjusted, the bottom blowing system is adjusted novel adjustment means for blast furnace---realize the middle part adjustment by regulation and control to copper cold spots thermal load.Can effectively reduce the working of a furnace fluctuation that causes because of copper cooling wall position slag crust instability, the annual minimum working of a furnace fluctuation that can make blast furnace avoid a longer cycle.Calculate 3 2500m with one month economic benefit of a working of a furnace influence of fluctuations blast furnace
3Blast furnace all adopts copper cooling wall middle part dispensing device, and the year total benefit of removing this installation cost is more than 30,000,000 yuan, has remarkable economic efficiency.
Claims (1)
1. blast furnace copper cooling wall thermal load dispensing device, it is characterized in that: it is made up of by-pass line, ball valve [3], thermopair [5], under meter [4], the two ends of by-pass line are connected with the series circulation soft water cooling water channel [6] of body of heater copper cooling wall section, at the junction at two ends difference mounting ball valve [3], thermopair [5] and under meter [4] are installed in the by-pass line middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202543308U CN201785412U (en) | 2009-11-05 | 2009-11-05 | Blast furnace copper cooling wall thermal load adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202543308U CN201785412U (en) | 2009-11-05 | 2009-11-05 | Blast furnace copper cooling wall thermal load adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201785412U true CN201785412U (en) | 2011-04-06 |
Family
ID=43817386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202543308U Expired - Fee Related CN201785412U (en) | 2009-11-05 | 2009-11-05 | Blast furnace copper cooling wall thermal load adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201785412U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113293247A (en) * | 2021-05-31 | 2021-08-24 | 四川省达州钢铁集团有限责任公司 | Construction method of partial segmental cooling system in blast furnace |
-
2009
- 2009-11-05 CN CN2009202543308U patent/CN201785412U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113293247A (en) * | 2021-05-31 | 2021-08-24 | 四川省达州钢铁集团有限责任公司 | Construction method of partial segmental cooling system in blast furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20111105 |