CN102312039B - Converter smoke cooling device - Google Patents
Converter smoke cooling device Download PDFInfo
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- CN102312039B CN102312039B CN2011102986789A CN201110298678A CN102312039B CN 102312039 B CN102312039 B CN 102312039B CN 2011102986789 A CN2011102986789 A CN 2011102986789A CN 201110298678 A CN201110298678 A CN 201110298678A CN 102312039 B CN102312039 B CN 102312039B
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- water
- cooling device
- smoke cooling
- converter smoke
- converter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a converter smoke cooling device. The converter smoke cooling device which comprises a cooling flue, heat exchangers, an expansion pot, and circulating pumps which are connected in series in order to form a water cooling circuit is characterized in that: the expansion pot is communicated with a high pressure gas source of an inert gas through an inlet valve; the expansion pot is provided with a vent valve; and the pressure of the inert gas in the expansion pot is 6-25atm. By adopting a closed cycle and adopting the inert gas to pressurize the expansion pot in the invention, good water quality is guaranteed, the long service life of the converter smoke cooling flue is guaranteed, high temperature water for cooling does not generate steam, and a maximum pipeline full of water of the smoke cooling device is guaranteed; and the converter smoke cooling device has the advantage of water saving, and especially the heat exchangers adopt dry air coolers, no water is consumed in the operation process of the smoke cooling device, so the cooling cost is low.
Description
Technical field
The present invention relates to metallurgical technology field, particularly a kind of corollary apparatus of converter.
Background technology
Produce a large amount of high-temperature flue gas during converter smelting, for the needs of dedusting, high-temperature flue gas need to cool off.At present, converter gas cooling scheme mainly be two kinds, scheme one is the vaporization cooling, as shown in Figure 1, water in this mode in the drum 11 enters cooling stack 1 by recycle pump 5 and circulates, and when flue gas was cooled to certain temperature, water coolant absorbed the heat of flue gas, become steam, in drum 11, carry out carbonated drink separate after to outside confess.Scheme two is the open type water-cooled, as shown in Figure 2, in this kind mode, enters cooling stack 1 from the water of cooling tower 10 by recycle pump 5, becomes hot water behind the absorbing heat, gets back to cooling tower 10.Cooling tower 10 is taken away the heat that hot water absorbs by the heat exchange of spraying and sprinkling evaporation and hot water and air.All there is certain deficiency in the two schemes of prior art: scheme one must produce steam, and for the iron and steel enterprise of steam surplus, this kind scheme is inapplicable.In the scheme two, because water coolant direct and contact with air in cooling tower, water quality can't guarantee, causes the life-span of cooling stack shorter, while water coolant direct evaporation, and the waste of water coolant is large.
Therefore, need to explore a kind of refrigerating unit, make it can not produce steam, can guarantee good water quality again, prolong the work-ing life of flue, simultaneously, also can reduce the loss of water coolant, reduce cooling cost.
Summary of the invention
In view of this, the invention provides a kind of converter smoke cooling device, this device cools off converter gas by closed cycle, and prevents the high-temperature cooling water gasification by the rare gas element supercharging, reaches assurance cooling stack long service life, makes refrigerating unit not produce the purpose of steam and water saving.
A kind of converter smoke cooling device of the present invention, comprise that successively series connection forms cooling stack, interchanger, expansion drum and the recycle pump of chilled(cooling) water return (CWR), described expansion drum is communicated with the rare gas element high-pressure air source by intake valve, be provided with purging valve on the expansion drum, the rare gas element air pressure size in the described expansion drum is 6～25 normal atmosphere.
Further, the rare gas element air pressure size in the described expansion drum is 6～16 normal atmosphere;
Further, described rare gas element is nitrogen;
Further, also comprise plenum chamber, described plenum chamber is connected between cooling stack and the interchanger;
Further, also comprise automatic water compensating valve, described expansion drum is communicated with the water coolant water source by automatic water compensating valve;
Further, described plenum chamber top is provided with vent valve;
Further, described recycle pump is at least two, and setting parallel with one another;
Further, described interchanger is at least two, and setting parallel with one another;
Further, described any one interchanger is dry air water cooler, water water-to-water heat exchanger or evaporation air cooler.
Beneficial effect of the present invention: converter smoke cooling device of the present invention has following advantage:
1) adopts the closed cycle water-cooled, can guarantee preferably water quality, guarantee converter gas cooling stack long service life;
2) adopt the closed cycle water-cooled, and by rare gas element to the expansion drum supercharging, make high-temperature cooling water not produce steam, and guarantee to be full of water in the vertex pipeline of flue gas cooling device;
3) have the advantage of water saving, when particularly interchanger adopts the dry air water cooler, substantially do not consume water in the flue gas cooling device operational process, cooling cost is low.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples;
Fig. 1 is the principle schematic of prior art gasification cooling scheme;
Fig. 2 is the principle schematic of prior art open type cooling scheme;
Fig. 3 is principle of the present invention and structural representation.
Embodiment
The present invention is described in detail below with reference to accompanying drawing: the converter smoke cooling device of present embodiment, comprising connects successively by pipeline forms the cooling stack 1 of chilled(cooling) water return (CWR), plenum chamber 2, interchanger 3, expansion drum 4 and recycle pump 5, in the practical application, plenum chamber 2 cancellations equally also can be realized purpose of the present invention, the cooling stack of present embodiment adopts known configurations, be that flue is surrounded by the heat transfer tube that gathers, described expansion drum 4 is communicated with the rare gas element high-pressure air source by intake valve 6, rare gas element can be the rare gas element that is insoluble in arbitrarily water coolant, be provided with purging valve 7 on the expansion drum 4, rare gas element air pressure size in the described expansion drum 4 is 6～25 normal atmosphere, keep certain pressure in the expansion drum, to be full of water in the vertex pipeline that guarantees flue gas cooling device, high-temperature water is not vaporized yet simultaneously, avoid producing steam, in 6～25 normal atmosphere of scope, select the force value of rare gas element in the expansion drum, can satisfy in the refrigerating unit vertex pipeline of any specification and be full of water, and high-temperature water is not vaporized.Consider construction cost and equipment cost, the rare gas element air pressure size in the expansion drum 4 is selected the best in 6～16 normal atmosphere.
As further improvement in the technical proposal, described rare gas element is nitrogen, and nitrogen is insoluble in water, and is easy to obtain, and cost is low.
As further improvement in the technical proposal, also comprise automatic water compensating valve 8, described expansion drum 4 is communicated with the water coolant water source by automatic water compensating valve 8, but the water coolant that consumes during the auto-compensation heat exchange.
As further improvement in the technical proposal, described plenum chamber 2 tops are provided with vent valve 9, can be when converter smoke cooling device start, and the air in the discharger simultaneously can be in time from installing interior discharge when high-temperature-hot-water generation partial vaporization.
As further improvement in the technical proposal, described recycle pump 5 is at least two, and setting parallel with one another, increasing cooling water flow, and the quantity of selecting the parallel circulating pump according to specification and the actual heat of refrigerating unit.
As further improvement in the technical proposal, described interchanger 3 is at least two, and setting parallel with one another, increasing heat and heat exchange efficiency, requires to select the quantity of heat exchangers in parallel according to the specification of refrigerating unit and actual heat and heat exchange.
As further improvement in the technical proposal, described any one interchanger 3 is dry air water cooler, water water-to-water heat exchanger or evaporation air cooler, can adopt different interchanger or the various combination of above-mentioned three kinds of interchanger according to the meteorological conditions that makes land used and concrete service requirements, wherein, when adopting the dry air water cooler, water content consumption is almost nil.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (9)
1. converter smoke cooling device, it is characterized in that: comprise that successively series connection forms cooling stack (1), interchanger (3), expansion drum (4) and the recycle pump (5) of chilled(cooling) water return (CWR), described expansion drum (4) is communicated with the rare gas element high-pressure air source by intake valve (6), be provided with purging valve (7) on the expansion drum (4), the rare gas element air pressure size in the described expansion drum (4) is 6～25 normal atmosphere.
2. converter smoke cooling device according to claim 1 is characterized in that: the rare gas element air pressure size in the described expansion drum (4) is 6～16 normal atmosphere.
3. converter smoke cooling device according to claim 2, it is characterized in that: described rare gas element is nitrogen.
4. converter smoke cooling device according to claim 3, it is characterized in that: also comprise plenum chamber (2), described plenum chamber (2) is connected between cooling stack (1) and the interchanger (3).
5. converter smoke cooling device according to claim 4 is characterized in that: also comprise automatic water compensating valve (8), described expansion drum (4) is communicated with the water coolant water source by automatic water compensating valve (8).
6. converter smoke cooling device according to claim 5, it is characterized in that: described plenum chamber (2) top is provided with vent valve (9).
7. the described converter smoke cooling device of any one according to claim 1-6, it is characterized in that: described recycle pump (5) is at least two, and setting parallel with one another.
8. converter smoke cooling device according to claim 7, it is characterized in that: described interchanger (3) is at least two, and setting parallel with one another.
9. converter smoke cooling device according to claim 8, it is characterized in that: described any one interchanger (3) is dry air water cooler, water water-to-water heat exchanger or evaporation air cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102986789A CN102312039B (en) | 2011-09-28 | 2011-09-28 | Converter smoke cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102986789A CN102312039B (en) | 2011-09-28 | 2011-09-28 | Converter smoke cooling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102312039A CN102312039A (en) | 2012-01-11 |
| CN102312039B true CN102312039B (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102986789A Active CN102312039B (en) | 2011-09-28 | 2011-09-28 | Converter smoke cooling device |
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| CN (1) | CN102312039B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106238259B (en) * | 2016-08-30 | 2018-10-30 | 西安热工研究院有限公司 | One kind being based on transpiration-cooled SNCR spray guns and its cooling means |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265511B (en) * | 2007-03-16 | 2012-09-05 | 中冶京诚工程技术有限公司 | Energy circulation system for converter gas flue evaporation cooling optimization |
| CN101671761B (en) * | 2008-09-10 | 2012-06-27 | 中冶赛迪工程技术股份有限公司 | Vaporization cooling device |
| CN201406442Y (en) * | 2009-05-15 | 2010-02-17 | 中冶赛迪工程技术股份有限公司 | Container-type dehumidification device arranged behind machine |
| CN202246732U (en) * | 2011-09-28 | 2012-05-30 | 中冶赛迪工程技术股份有限公司 | Flue gas cooling device for converter |
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| CN102312039A (en) | 2012-01-11 |
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