CN219399062U - Cooling water recovery device for blast furnace shell - Google Patents
Cooling water recovery device for blast furnace shell Download PDFInfo
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- CN219399062U CN219399062U CN202320635769.5U CN202320635769U CN219399062U CN 219399062 U CN219399062 U CN 219399062U CN 202320635769 U CN202320635769 U CN 202320635769U CN 219399062 U CN219399062 U CN 219399062U
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Abstract
The utility model relates to a cooling water recovery device for a blast furnace shell, which comprises an annular water tank unit, a flow guide pipe, a pit, a water inlet pipe, a water reservoir and a water outlet pipe; the annular water tank unit consists of a tuyere water tank, a hearth water tank and a ground water tank, and is sequentially arranged outside the blast furnace shell from top to bottom; the inside of the pit is provided with a baffle plate, the baffle plate divides the pit into a sewage pool and a water purifying pool, the annular water tank unit is communicated with the sewage pool through a flow guide pipe, and a submersible pump is arranged in the water purifying pool and is communicated with the reservoir through a one-way valve and a water inlet pipe; a water outlet pipe is arranged between the reservoir and the blast furnace shell. The annular water tank unit collects cooling water, the cooling water is sent back to the pit through the guide pipe and is precipitated and purified and then is pumped to the reservoir for storage by the diving pump, and the cooling water is recycled as cooling water of the blast furnace shell, so that water resources are saved, potential safety hazards are eliminated, environmental pollution around the blast furnace is reduced, and normal production and operation of the blast furnace are ensured.
Description
Technical Field
The utility model relates to water resource recovery equipment in the technical field of metallurgy smelting, in particular to a cooling water recovery device for a blast furnace shell.
Background
During the production of a blast furnace, especially when the blast furnace is used to the end of its life, the temperature of the furnace shell will rise due to severe corrosion of the refractory lining of the blast furnace. At present, the general practice is that the cooling of taking water, the water consumption of the cooling of taking water is extremely big, and the water consumption can reach 1000 tons/day when at most, and the coverage area of cooling water is big, and the cooling water can not retrieve, causes the serious waste of water resource. In addition, the water cooling can cause a large amount of accumulated water on the ground of the blast furnace hearth, and the splashed high-temperature molten iron is very easy to cause explosion accidents when meeting water, has potential safety hazards, pollutes the surrounding environment and severely restricts the normal production and operation of the blast furnace.
Disclosure of Invention
The utility model provides a cooling water recovery device for a blast furnace shell, which is characterized in that an annular water tank unit arranged on the blast furnace shell collects cooling water, the cooling water is sent back to a pit through a diversion pipe, is precipitated and purified and then is pumped to a reservoir by a diving pump for storage, and then the cooling water is recycled as cooling water of the blast furnace shell, so that water resources are saved, potential safety hazards are eliminated, environmental pollution around the blast furnace is reduced, and normal production operation of the blast furnace is ensured.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
a cooling water recovery device of a blast furnace shell comprises an annular water tank unit, a draft tube, a pit, a water inlet pipe, a water reservoir and a water outlet pipe; the annular water tank unit consists of a tuyere water tank, a hearth water tank and a ground water tank, and is sequentially arranged outside the blast furnace shell from top to bottom; the inside of the pit is provided with a baffle plate, the baffle plate divides the pit into a sewage pool and a water purifying pool, the annular water tank unit is communicated with the sewage pool through a flow guide pipe, and a submersible pump is arranged in the water purifying pool and is communicated with the reservoir through a one-way valve and a water inlet pipe; a water outlet pipe is arranged between the reservoir and the blast furnace shell.
Further, the tuyere water tank is vertically communicated with the hearth water tank.
Further, purified water in the reservoir is sent to the blast furnace shell through the water outlet pipe for cooling, then is recovered through the air port water tank, the hearth water tank and the ground water tank and then enters the pit sewage tank through the flow guide pipe, and cooling water is deposited and purified in the sewage tank and then fully flows across the partition plate to enter the purified water tank.
Further, the number of the diversion pipes is two, one diversion pipe is used for communicating the hearth water tank with the pit, and the other diversion pipe is used for communicating the ground water tank with the pit.
Further, a liquid level meter is further arranged in the pit water purifying tank, the liquid level meter is in electric interlocking control with the submersible pump, when the liquid level of the water purifying tank rises to the limit of the upper end of the liquid level meter, the submersible pump is automatically started, purified water is conveyed to the reservoir through the one-way valve and the water inlet pipe, and when the liquid level of the water purifying tank falls to the limit of the lower end of the liquid level meter, the submersible pump is automatically powered off and stops.
Compared with the prior art, the utility model has the beneficial effects that:
1) The efficiency of recycling the cooling water of the annular water tank unit is up to 95%, so that serious waste of water resources is avoided;
2) The recovered cooling water is purified by natural precipitation and then is used as a cooling water source of the blast furnace shell, and is recycled, so that the environment-friendly idea advocated by the nation is met;
3) Most of the cooling water is recovered, so that roadbed collapse caused by serious accumulated water on a blast furnace foundation is avoided, and the explosion and vicious accident caused by iron leakage of the blast furnace when the blast furnace meets water is avoided;
4) Most of the cooling water is recovered, and the surrounding environment of the blast furnace is greatly improved;
5) The structure and the method are simple and easy to realize.
Drawings
Fig. 1 is a schematic structural view of a cooling water recovery device for a blast furnace shell according to the present utility model.
Reference numerals illustrate:
in the figure: 1. blast furnace 2, annular water tank unit 21, tuyere water tank 22, furnace hearth water tank 23, ground water tank 3, guide pipe 4, pit 41, partition plate 42, sewage tank 43, clean water tank 44, submerged pump 45, one-way valve 46, liquid level meter 5, water inlet pipe 6, water reservoir 7, water outlet pipe
Detailed Description
The following is a further description of embodiments of the utility model, taken in conjunction with the accompanying drawings:
as shown in fig. 1, the cooling water recovery device for the blast furnace shell comprises an annular water tank unit 2, a flow guide pipe 3, a pit 4, a water inlet pipe 5, a water reservoir 6 and a water outlet pipe 7; the annular water tank unit 2 consists of a tuyere water tank 21, a hearth water tank 22 and a ground water tank 23, and is sequentially arranged outside the shell of the blast furnace 1 from top to bottom; a partition board 41 is arranged in the pit 4, the partition board 41 divides the pit 4 into a sewage pool 42 and a water purifying pool 43, the annular water tank unit 2 is communicated with the sewage pool 42 through a flow guide pipe 3, a submersible pump 44 is arranged in the water purifying pool 43 and is communicated with the reservoir 6 through a one-way valve 45 and a water inlet pipe 5; a water outlet pipe 7 is arranged between the reservoir 6 and the shell of the blast furnace 1.
Further, the tuyere water tank 21 is vertically communicated with the hearth water tank 22, so that the cooling water recovered from the tuyere water tank 21 is guided into the hearth water tank 22 and then flows into the pit 4 sewage pool 42 through the draft tube 3 for recovery.
Further, the purified water in the reservoir 6 is sent to the blast furnace shell through the water outlet pipe 7 to cool the blast furnace shell, the cooled water is recycled through the tuyere water tank 21, the hearth water tank 22 and the ground water tank 23 and then enters the pit 4 sewage tank 42 through the flow guide pipe 3, and the cooled water is fully flowed across the partition board 41 and enters the purified water tank 43 after being precipitated and purified in the sewage tank 42.
Further, two flow guiding pipes 3 are provided, one is used for communicating the hearth water tank 22 with the pit 4, and the other is used for communicating the ground water tank 23 with the pit 4, so that cooling water recovered by the ground water tank 23 flows into the pit 4 sewage pool 42 through the flow guiding pipe 3 for recovery.
Further, a liquid level meter 46 is further arranged in the pit 4 clean water tank 43, the liquid level meter 46 is electrically interlocked with the submersible pump 44, when the liquid level of the clean water tank 43 rises to the upper limit of the liquid level meter 46, the submersible pump 44 is automatically started, clean water is conveyed to the reservoir 6 for storage through the one-way valve 45 and the water inlet pipe 5 for standby, and when the liquid level of the clean water tank 43 falls to the lower limit of the liquid level meter 46, the submersible pump 44 is automatically powered off and stopped.
Working principle:
1) When the temperature of the furnace shell of the blast furnace 1 is increased and needs to be cooled, the purified water in the reservoir 6 is sent to the shell of the blast furnace 1 through the water outlet pipe 7 to cool the shell, and the cooled water is recycled through the tuyere water tank 21, the hearth water tank 22 and the ground water tank 23 and then enters the sewage tank 42 of the pit 4 through the draft tube 3 to be precipitated and purified;
2) The cooling water after precipitation and purification in the sewage tank 42 gradually rises in level and then flows fully across the partition plate 41 into the clean water tank 43;
3) When the liquid level of the clean water tank 43 rises to the upper limit of the liquid level meter 46, the submersible pump 44 is automatically started, clean water is conveyed to the reservoir 6 for storage through the one-way valve 45 and the water inlet pipe 5, and when the liquid level of the clean water tank 43 falls to the lower limit of the liquid level meter 46, the submersible pump 44 is automatically powered off and stopped;
4) And stopping water cooling after the temperature of the furnace shell of the blast furnace 1 is reduced to the set temperature.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme and the concept of the present utility model, and should be covered by the scope of the present utility model.
Claims (5)
1. The cooling water recovery device for the blast furnace shell is characterized by comprising an annular water tank unit, a flow guide pipe, a pit, a water inlet pipe, a water reservoir and a water outlet pipe; the annular water tank unit consists of a tuyere water tank, a hearth water tank and a ground water tank, and is sequentially arranged outside the blast furnace shell from top to bottom; the inside of the pit is provided with a baffle plate, the baffle plate divides the pit into a sewage pool and a water purifying pool, the annular water tank unit is communicated with the sewage pool through a flow guide pipe, and a submersible pump is arranged in the water purifying pool and is communicated with the reservoir through a one-way valve and a water inlet pipe; a water outlet pipe is arranged between the reservoir and the blast furnace shell.
2. The blast furnace housing cooling water recovery apparatus according to claim 1, wherein the tuyere water tank is vertically communicated with the hearth water tank.
3. The device for recycling cooling water of blast furnace shell according to claim 1, wherein the purified water in the reservoir is sent to the blast furnace shell through the water outlet pipe for cooling down, recycled through the tuyere water tank, the hearth water tank and the ground water tank, then enters the pit sewage tank through the draft tube, and the cooling water is fully flowed across the partition plate to enter the purified water tank after being precipitated and purified in the sewage tank.
4. The blast furnace shell cooling water recovery device according to claim 1, wherein the number of the draft tubes is two, one of the draft tubes is used for communicating a hearth water tank with a pit, and the other draft tube is used for communicating a ground water tank with the pit.
5. The blast furnace shell cooling water recovery device according to claim 1, wherein a liquid level meter is further arranged in the pit clean water tank, the liquid level meter is electrically interlocked with the submersible pump, when the liquid level of the clean water tank rises to the limit of the upper end of the liquid level meter, the submersible pump is automatically started to convey clean water to the reservoir through the one-way valve and the water inlet pipe, and when the liquid level of the clean water tank falls to the limit of the lower end of the liquid level meter, the submersible pump is automatically powered off and stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320635769.5U CN219399062U (en) | 2023-03-28 | 2023-03-28 | Cooling water recovery device for blast furnace shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320635769.5U CN219399062U (en) | 2023-03-28 | 2023-03-28 | Cooling water recovery device for blast furnace shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219399062U true CN219399062U (en) | 2023-07-25 |
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ID=87238644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320635769.5U Active CN219399062U (en) | 2023-03-28 | 2023-03-28 | Cooling water recovery device for blast furnace shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219399062U (en) |
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2023
- 2023-03-28 CN CN202320635769.5U patent/CN219399062U/en active Active
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