CN112853018A - Open circuit industrial water cooling system - Google Patents
Open circuit industrial water cooling system Download PDFInfo
- Publication number
- CN112853018A CN112853018A CN201911180387.2A CN201911180387A CN112853018A CN 112853018 A CN112853018 A CN 112853018A CN 201911180387 A CN201911180387 A CN 201911180387A CN 112853018 A CN112853018 A CN 112853018A
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- cooling
- water
- cooling water
- open circuit
- pipe
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- 238000001816 cooling Methods 0.000 title claims abstract description 94
- 239000008235 industrial water Substances 0.000 title claims abstract description 33
- 239000000498 cooling water Substances 0.000 claims description 83
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 61
- 238000009851 ferrous metallurgy Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
Abstract
The invention provides an open-circuit industrial water cooling system, which relates to the technical field of ferrous metallurgy. The open-circuit industrial water cooling system provided by the invention can achieve the purposes of uniform cooling, low operation cost and long service life of the blast furnace.
Description
Technical Field
The invention relates to the technical field of ferrous metallurgy, in particular to an open-circuit industrial water cooling system.
Background
In the blast furnace smelting process, complex physical and chemical reactions can be carried out in the furnace, and then high temperature is generated; therefore, the blast furnace needs cooling water to cool the furnace body so as to ensure the normal production of the blast furnace. At present, most domestic medium and small blast furnaces are cooled by open-circuit industrial water, a cooling wall which passes through cooling water is arranged in the furnace body to cool the furnace body, the cooling wall is in a coiled pipe form and is connected in series with 2-4 cooling walls in the circumferential direction of the furnace body, and return water of the cooling walls is discharged into a drainage box and then is converged into a return water main pipe to flow into a pump room.
This conventional structure has the following disadvantages: firstly, the cooling wall adopts the coiled pipe form, because the condenser tube turns round more, consequently, the cooling wall has the cooling blind area, and the water pipe interval difference of making of bending can cause this piece of cooling wall cooling inhomogeneous. Secondly, the cooling walls adopt a transverse series connection mode, and because the longitudinal heat flow intensity of the blast furnace is different, the temperature rise of the cooling water at each part is different; the heat flow intensity of the hearth area of the furnace bottom is relatively low, the water temperature rise is low, however, the latent heat of the cooling water is discharged back to the pump room without being fully utilized, and the energy consumption is large; in addition, the cooling walls connected in series transversely have different water inlet temperatures, so that the cooling strength of each cooling wall is different, and the cooling of the blast furnace in the circumferential direction is not uniform. And thirdly, the cooling wall is in a coiled pipe form, each cooling wall is only provided with one water pipe, and once the water pipes of the cooling wall leak, the whole cooling wall fails, so that potential safety production hazards are caused. In addition, the cooling wall adopts the form of transversely connecting in series, and the total cooling water volume of furnace body is great, and the running cost is high. And the paths of the water supply and return branches are different, the resistance loss is different, the cooling water amount of each branch is different, and the cooling in the circumferential direction of the furnace body is uneven, so that the operation of the blast furnace is influenced. Finally, the cooling wall adopts a serpentine pipe form, cooling water flows from top to bottom, once the hot surface temperature of the cooling wall reaches the condition of film boiling during production, bubbles can be generated in a water system, and the bubbles are easily gathered at the elbow of the serpentine pipe and cannot be discharged, so that the cooling effect of the furnace body is influenced.
Disclosure of Invention
The invention aims to provide an open-circuit industrial water cooling system which can achieve the purposes of uniform cooling, low operation cost and long service life of a blast furnace.
In order to achieve the purpose, the invention provides an open-circuit industrial water cooling system, wherein a cooling wall covers the inner wall of a blast furnace body, a plurality of cooling water channels are arranged in the cooling wall, the cooling water channels are arranged at intervals along the circumferential direction of the furnace body, each cooling water channel extends upwards from the bottom of the cooling wall to the throat of the furnace body, a cooling water inlet is formed in the bottom end of each cooling water channel, and a cooling water outlet is formed in the top end of each cooling water channel.
The open-circuit industrial water cooling system is characterized in that the cooling wall is formed by splicing a plurality of cooling wall bodies, cooling water pipes arranged in the vertical direction are arranged in the cooling wall bodies, and the cooling water channel is formed by connecting a plurality of cooling water pipes in series from bottom to top.
The open-circuit industrial water cooling system is characterized in that the cooling water pipes are connected in series through connecting pipes.
The open-circuit industrial water cooling system as described above, wherein the connecting pipe is a U-shaped pipe.
The open-circuit industrial water cooling system as described above, wherein the first control valve is installed on the connection pipe.
The open-circuit industrial water cooling system comprises a blast furnace, wherein a water supply ring pipe is arranged at the bottom of the blast furnace, the water supply ring pipe is arranged along the circumferential direction of the bottom of the blast furnace, and the cooling water inlet of each cooling water channel is respectively communicated with the water supply ring pipe through a water supply branch pipe.
The open-circuit industrial water cooling system as described above, wherein the water supply branch pipe is mounted with a second control valve.
The open circuit industrial water cooling system as described above, wherein a flow meter is provided on the water supply branch pipe.
The open-circuit industrial water cooling system is characterized in that a water drainage tank is arranged outside the blast furnace, and the cooling water outlet of each cooling water channel is communicated with the water drainage tank through a water return branch pipe.
Compared with the prior art, the invention has the following characteristics and advantages:
in the invention, cooling industrial water enters the cooling wall from a cooling water inlet at the bottom of the cooling water channel and then goes up to the furnace throat, and because the cooling water channel is similar to a straight pipe form, compared with a coil pipe form in the prior art, the water pipe spacing is uniformly distributed, a cooling blind area at a corner in the coil pipe form does not exist, meanwhile, the resistance loss of each cooling water channel from bottom to top is basically the same, and the flow of each branch is basically the same, thus the furnace body is cooled more uniformly; and because the water head quantity is few, under the same water flow speed, can reduce the water use total amount of cooling industrial water, reduce blast furnace running cost, it is an effective measure to realize the low consumption of blast furnace.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for facilitating the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. Those skilled in the art, having the benefit of the teachings of this invention, may choose from the various possible shapes and proportional sizes to implement the invention as a matter of case.
FIG. 1 is a schematic diagram of an open circuit industrial water cooling system according to the present invention;
FIG. 2 is a schematic view showing the structure of a cooling water passage according to the present invention;
FIG. 3 is a schematic view showing the connection of cooling water pipes according to the present invention;
FIG. 4 is a schematic structural view of a connecting tube according to the present invention;
description of reference numerals:
10. a stave; 20. A cooling water passage;
21. a cooling water pipe; 22. A connecting pipe;
23. a first control valve; 11. A stave body;
30. a water supply ring pipe; 40. A water supply branch pipe;
41. a second control valve; 50. A drain tank;
60. a return branch pipe.
Detailed Description
The details of the present invention can be more clearly understood in conjunction with the accompanying drawings and the description of the embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of illustration only and are not to be construed as limiting the invention in any way. Any possible variations based on the present invention may be conceived by the skilled person in the light of the teachings of the present invention, and these should be considered to fall within the scope of the present invention.
As shown in figure 1, the invention provides an open-circuit industrial water cooling system, wherein a cooling wall 10 covers the inner wall of a blast furnace body, a plurality of cooling water channels 20 are arranged in the cooling wall 10, the plurality of cooling water channels 20 are arranged at intervals along the circumferential direction of the furnace body, each cooling water channel 20 extends upwards from the bottom of the cooling wall 10 to the furnace throat of the furnace body, the bottom end of each cooling water channel 20 is provided with a cooling water inlet, and the top end of each cooling water channel 20 is provided with a cooling water outlet.
In the invention, cooling industrial water enters the cooling wall 10 from a cooling water inlet at the bottom of the cooling water channel 20 and then goes up to the furnace throat, and as the cooling water channel 20 is similar to a straight pipe form, compared with a coil pipe form in the prior art, the water pipe spacing is uniformly distributed, a cooling blind area at a corner in the coil pipe form does not exist, meanwhile, the resistance loss of each cooling water channel from bottom to top is basically the same, and the flow of each branch is basically the same, so that the furnace body is cooled more uniformly; and because the number of the cooling industrial water heads is small, the total water consumption of the cooling industrial water can be reduced under the same water flow speed, the running cost of the blast furnace is reduced, and the method is an effective measure for realizing low consumption of the blast furnace.
In the invention, a plurality of cooling water channels 20 are arranged at intervals along the circumferential direction of the blast furnace body, the blast furnace body is divided into a plurality of small cooling units along the circumferential direction, and the cooling has no blind areas, so that the cooling wall can be cooled more uniformly. Meanwhile, the circumferential direction of the blast furnace body is divided into a plurality of small cooling units, so that even if the local cooling water channel 20 is damaged, the whole blast furnace is cooled by the local cooling water channel with small influence.
In the invention, the cooling water inlet is arranged at the bottom end of the cooling water channel 20, the cooling water outlet is arranged at the top end of the cooling water channel 20, the cooling industrial water flows from bottom to top, the generated bubbles can be discharged along with the rising of water flow, air resistance can not be generated, the heat transfer effect is good, and the furnace body cooling is facilitated.
In an alternative example of the present invention, as shown in fig. 1 to 3, the stave 10 is formed by splicing a plurality of stave bodies 11, the stave bodies 11 have cooling water pipes 21 arranged in a vertical direction therein, and the cooling water channel 20 is formed by connecting a plurality of cooling water pipes 21 in series from bottom to top.
In the present invention, each stave body 11 may be provided with 1 cooling water pipe 21, or may be provided with a plurality of cooling water pipes 21 arranged at intervals (i.e., each stave body 11 may be provided with a plurality of cooling water passages 20 therethrough). In the present invention, the cooling stave body 11 may be installed and spliced in the manner of the prior art, which is not described herein again.
In an alternative example of the present invention, as shown in fig. 3 and 4, two cooling water pipes 21 adjacent to each other up and down are connected in series through a connecting pipe 22.
In an alternative embodiment of the present invention, the connection pipe 22 is a U-shaped pipe.
In an alternative embodiment of the present invention, a first control valve 23 is installed on the connection pipe 22 to facilitate the leakage detection of the stave cooler 10.
In an alternative example of the present invention, a water supply loop 30 is installed at the bottom of the blast furnace, the water supply loop 30 is disposed along the circumferential direction of the bottom, and each cooling water passage 20 has its cooling water inlet communicated with the water supply loop 30 through a water supply branch pipe 40, respectively. The water supply ring pipe 30 is arranged at the bottom of the furnace and is connected with the cooling wall of the 1 st section of the bottom of the furnace in series, so that the latent heat of the cooling water of the bottom of the furnace and the cooling wall of the hearth can be fully utilized, the cooling water of the cooling wall can be reduced, and the running cost of the blast furnace can be reduced
In an alternative embodiment of the present invention, a second control valve 41 is installed in the water supply branch pipe 40. The second control valve 41 may control the flow rate in the water supply branch pipe 40.
In an alternative embodiment of the invention, a flow meter is provided in the supply loop 30.
In an alternative example of the present invention, a drain tank 50 is provided outside the blast furnace, and the cooling water outlet of each cooling water passage 20 is communicated with the drain tank 50 through a return branch pipe 60, respectively. The drainage tank 50 is communicated with the pump room through a return water main pipe.
Referring to fig. 1 to fig. 4, the operation of the open-circuit water cooling system according to the present invention will be described in detail with reference to the following embodiments:
as shown in fig. 1 to 3, the open-circuit industrial water cooling system according to the present invention includes a water supply loop 30, a plurality of water supply branch pipes 40, a cooling wall 10, a water return branch pipe 60, and a water discharge tank 50, wherein a second control valve 41 is installed on the water supply branch pipe 40, and a cooling water channel 20 is installed in the cooling wall 10.
In this embodiment, the water supply loop 30 is divided into 4 zones, the water supply amount of the 4 zones can be controlled to be the same by a valve and a flow meter, the water supply loop 30 supplies water to the cooling water passage 20 in the stave 10 through 4 water supply branch pipes, and the water supply branch pipes 40 are provided with second control valves 41 to facilitate the leak detection of the stave 10. Two adjacent cooling water pipes 21 are connected by a U-shaped pipe and reach the top to form a cooling water channel 20, and the return water of the cooling water channel 20 is discharged into the drainage tank 50 through the return water branch pipe 60 and then is converged into the return water main pipe to flow into the pump room.
Of course, the number of the partitions of the water supply loop 30 is not limited, and those skilled in the art may also divide the water supply loop 30 into 6, 8 or more partitions according to the actual needs, which will not be described herein.
The invention can effectively solve the problems of uneven cooling of the cooling wall, uneven cooling of the circumference of the furnace body, large cooling water quantity and easy generation of air resistance of a cooling system, thereby enabling the furnace body to be cooled evenly, reducing the cooling water of the cooling wall, lowering the running cost of the blast furnace and realizing the aim of low consumption of the blast furnace.
The present invention is not limited to the above embodiments, and in particular, various features described in different embodiments can be arbitrarily combined with each other to form other embodiments, and the features are understood to be applicable to any embodiment except the explicitly opposite descriptions, and are not limited to the described embodiments.
Claims (9)
1. The utility model provides an open circuit industry water cooling system which characterized in that covers on the inner wall of blast furnace body has the cooling wall, be provided with many cooling water passageway in the cooling wall, many the cooling water passageway is followed the circumference interval of furnace body sets up, every the cooling water passageway respectively by the cooling wall bottom upwards extends to the furnace throat department of furnace body, the cooling water inlet has been seted up to the bottom of cooling water passageway, the cooling water export has been seted up on the top of cooling water passageway.
2. The open circuit industrial water cooling system of claim 1, wherein the cooling wall is formed by splicing a plurality of cooling wall bodies, the cooling wall bodies are internally provided with cooling water pipes arranged along a vertical direction, and the cooling water channel is formed by connecting a plurality of cooling water pipes in series from bottom to top.
3. The open circuit industrial water cooling system according to claim 2, wherein the cooling water pipes are connected in series through connecting pipes.
4. The open circuit industrial water cooling system of claim 3, wherein the connecting pipe is a U-shaped pipe.
5. The open circuit industrial water cooling system of claim 3, wherein the connection pipe has a first control valve mounted thereon.
6. The open circuit industrial water cooling system according to claim 1, wherein a water supply loop pipe is installed at a bottom of the blast furnace, the water supply loop pipe is arranged along a circumferential direction of the bottom, and the cooling water inlet of each cooling water channel is respectively communicated with the water supply loop pipe through a water supply branch pipe.
7. The open circuit industrial water cooling system of claim 6, wherein a second control valve is installed on the water supply branch pipe.
8. The open circuit industrial water cooling system of claim 7, wherein the water supply branch is provided with a flow meter.
9. The open circuit industrial water cooling system of claim 6, wherein a drain tank is provided outside the blast furnace, and the cooling water outlet of each cooling water channel is respectively communicated with the drain tank through a return water branch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911180387.2A CN112853018A (en) | 2019-11-27 | 2019-11-27 | Open circuit industrial water cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911180387.2A CN112853018A (en) | 2019-11-27 | 2019-11-27 | Open circuit industrial water cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112853018A true CN112853018A (en) | 2021-05-28 |
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ID=75985495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911180387.2A Pending CN112853018A (en) | 2019-11-27 | 2019-11-27 | Open circuit industrial water cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112853018A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0873910A (en) * | 1994-09-02 | 1996-03-19 | Nippon Steel Corp | Method for cooling furnace body of blast furnace |
| CN101693930A (en) * | 2009-10-16 | 2010-04-14 | 湖南华菱涟源钢铁有限公司 | Cooling water pipe connecting net for cooling wall of soft water blast furnace |
| CN202808839U (en) * | 2012-08-23 | 2013-03-20 | 首钢水城钢铁（集团）有限责任公司 | Online repair circulating device of non-melting blast furnace cooling wall |
| CN103820594A (en) * | 2014-02-26 | 2014-05-28 | 北京首钢国际工程技术有限公司 | Sectional soft water closed circulation cooling system of blast furnace body |
| CN104152618A (en) * | 2014-08-07 | 2014-11-19 | 山西太钢不锈钢股份有限公司 | Soft-water cooling pipeline control method for blast furnace |
| CN207002769U (en) * | 2017-08-01 | 2018-02-13 | 中冶京诚工程技术有限公司 | Blast furnace cooling device |
| CN110184402A (en) * | 2018-07-14 | 2019-08-30 | 江阴兴澄特种钢铁有限公司 | A method of it is online quickly to determine the specific leak source of blast furnace cooling stave |
| CN209669267U (en) * | 2018-12-28 | 2019-11-22 | 阳春新钢铁有限责任公司 | A kind of blast furnace safety water installations |
| CN211367615U (en) * | 2019-11-27 | 2020-08-28 | 中冶京诚工程技术有限公司 | Open circuit industrial water cooling system |
-
2019
- 2019-11-27 CN CN201911180387.2A patent/CN112853018A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0873910A (en) * | 1994-09-02 | 1996-03-19 | Nippon Steel Corp | Method for cooling furnace body of blast furnace |
| CN101693930A (en) * | 2009-10-16 | 2010-04-14 | 湖南华菱涟源钢铁有限公司 | Cooling water pipe connecting net for cooling wall of soft water blast furnace |
| CN202808839U (en) * | 2012-08-23 | 2013-03-20 | 首钢水城钢铁（集团）有限责任公司 | Online repair circulating device of non-melting blast furnace cooling wall |
| CN103820594A (en) * | 2014-02-26 | 2014-05-28 | 北京首钢国际工程技术有限公司 | Sectional soft water closed circulation cooling system of blast furnace body |
| CN104152618A (en) * | 2014-08-07 | 2014-11-19 | 山西太钢不锈钢股份有限公司 | Soft-water cooling pipeline control method for blast furnace |
| CN207002769U (en) * | 2017-08-01 | 2018-02-13 | 中冶京诚工程技术有限公司 | Blast furnace cooling device |
| CN110184402A (en) * | 2018-07-14 | 2019-08-30 | 江阴兴澄特种钢铁有限公司 | A method of it is online quickly to determine the specific leak source of blast furnace cooling stave |
| CN209669267U (en) * | 2018-12-28 | 2019-11-22 | 阳春新钢铁有限责任公司 | A kind of blast furnace safety water installations |
| CN211367615U (en) * | 2019-11-27 | 2020-08-28 | 中冶京诚工程技术有限公司 | Open circuit industrial water cooling system |
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