CN104561438A - Evaporative cooling flue of converter - Google Patents
Evaporative cooling flue of converter Download PDFInfo
- Publication number
- CN104561438A CN104561438A CN201510045840.4A CN201510045840A CN104561438A CN 104561438 A CN104561438 A CN 104561438A CN 201510045840 A CN201510045840 A CN 201510045840A CN 104561438 A CN104561438 A CN 104561438A
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- China
- Prior art keywords
- flue
- water tank
- annular water
- converter
- fixed section
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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
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses an evaporative cooling flue of a converter. The evaporative cooling flue comprises a movable smoke hood, wherein the movable smoke hood is positioned above the mouth of the converter, the upper part of the movable smoke hood is connected with the lower part of a furnace mouth fixed section flue, the upper part of the furnace mouth fixed section flue is connected with the lower part of an intermediate section flue through a sealing telescopic connecting device, and the upper part of the intermediate section flue is connected with a tail end flue; an installation gap is positioned between the furnace mouth fixed section flue and the intermediate section flue, the installation gap is internally provided with an annular water tank, and the annular water tank is provided with a water inlet pipe and a water outlet pipe. The evaporative cooling flue of the converter, which is disclosed by the invention, is internally provided with the annular water tank capable of shielding the installation gap positioned between the furnace mouth fixed section flue and the intermediate section flue, and therefore, hot red slag is difficult to scorify by entering a cavity formed by encircling the furnace mouth fixed section flue, the intermediate section flue and the sealing telescopic connecting device.
Description
Technical field
The present invention relates to a kind of for collecting the evaporation cooling flue of steel converter with cooling high temperature flue gas.
Background technology
Converter evaporation cooling air flue is one of main support equipment of converter steelmaking, and the high-temperature flue gas of emerging from fire door will be collected and be cooled to this equipment operationally to greatest extent.
The structure of conventional converter evaporation cooling air flue comprises: be positioned at the movable gas hood above converter mouth, movable gas hood top is connected with mouth fixed section flue bottom, mouth fixed section flue top is connected by sealing Extensible connection device with interlude flue bottom, and interlude flue top is connected with end flue; Wherein in order to compensate expanding with heat and contract with cold and can conveniently install flue between each flue, between mouth fixed section flue and interlude flue, there is assemblage gap.
The shortcoming of above-mentioned conventional converter evaporation cooling air flue is as follows: when converter steelmaking, high-temperature flue gas can carry red-hot red slag and enter converter evaporation cooling air flue, slagging scorification can be cooled after red-hot red slag runs into walling of flue, because the assemblage gap between mouth fixed section flue and interlude flue is larger, so red-hot red slag easily enters in a large number by mouth fixed section flue, interlude flue, cool slagging scorification in the chamber that surrounds of sealing Extensible connection device, slagging scorification in chamber is easily piled up and is difficult to remove, can enter in flue after the slag piled up fills up chamber, the cross-sectional area of flue will be reduced like this, thus converter steelmaking is had a negative impact.
Summary of the invention
Technical problem to be solved by this invention is: will provide a kind of converter evaporation cooling air flue of not easily slagging scorification in the chamber surrounded by mouth fixed section flue, interlude flue, sealing Extensible connection device.
In order to solve the problem, the technical solution used in the present invention is: converter evaporation cooling air flue, comprise: be positioned at the movable gas hood above converter mouth, movable gas hood top is connected with mouth fixed section flue bottom, mouth fixed section flue top is connected by sealing Extensible connection device with interlude flue bottom, interlude flue top is connected with end flue, assemblage gap is there is between mouth fixed section flue and interlude flue, be characterized in: in assemblage gap, be provided with annular water tank, annular water tank is provided with water inlet pipe and rising pipe, and leave to expand with heat and contract with cold between annular water tank and mouth fixed section flue or interlude flue and use gap.
Further, aforesaid converter evaporation cooling air flue, wherein: in the inner chamber of annular water tank, be provided with two pieces of dividing plates, it is two not connected separate chamber that two pieces of dividing plates intercept the inner chamber of annular water tank, and the two ends of two separate chamber are all respectively arranged with water inlet pipe and rising pipe.
Further, aforesaid converter evaporation cooling air flue, wherein: two pieces of dividing plates are positioned on the same diameter line of annular water tank.
Further, aforesaid converter evaporation cooling air flue, wherein: after annular water tank installs in assemblage gap, the mounting height of the water inlet pipe on annular water tank is lower than the mounting height of rising pipe.
Further, aforesaid converter evaporation cooling air flue, wherein: the cross-sectional shape of annular water tank inner chamber is rectangle.
Further, aforesaid converter evaporation cooling air flue, wherein: the chamber width of annular water tank inner chamber is not less than 40mm.
Advantage of the present invention is: because the assemblage gap between mouth fixed section flue and interlude flue is excessive, so expanding with heat and contract with cold for compensating flue and reserve flue and expand with heat and contract with cold after with gap, annular water tank is utilized to block the residual gap in assemblage gap, red-hot so red slag to expand with heat and contract with cold slagging scorification in the chamber that to enter with gap and surrounded by mouth fixed section flue, interlude flue, sealing Extensible connection device with regard to not easily passing through the less flue of spacing, substantially reduce the scarfing cinder difficulty of converter evaporation cooling air flue, and then improve production efficiency; And operationally, by passing into water coolant to cool in annular water tank, thus improve the work-ing life of annular water tank.
Accompanying drawing explanation
Fig. 1 is the structural representation of converter evaporation cooling air flue of the present invention.
Fig. 2 is the structure for amplifying schematic diagram at A place in Fig. 1.
Fig. 3 is the structural representation of annular water tank shown in Fig. 2.
Embodiment
Below in conjunction with specific embodiments and the drawings, the present invention is described in further detail.
Converter evaporation cooling air flue, as Fig. 1, Fig. 2, shown in Fig. 3, comprise the movable gas hood 1 be positioned at above converter mouth, movable gas hood 1 top is connected with mouth fixed section flue 2 bottom, mouth fixed section flue 2 top is connected by sealing Extensible connection device 6 with interlude flue 3 bottom, sealing Extensible connection device 6 can be telescopic joint, interlude flue 3 top is connected with end flue 4, assemblage gap is there is between mouth fixed section flue 2 and interlude flue 3, annular water tank 5 is provided with in assemblage gap, in actual applications, annular water tank 5 can be fixed by the flange on support and mouth fixed section flue 2 or interlude flue 3, annular water tank 5 is provided with water inlet pipe 51 and rising pipe 52, and leave to expand with heat and contract with cold between annular water tank 5 and mouth fixed section flue 2 or interlude flue 3 and use gap.Water coolant enters annular water tank 5 from water inlet pipe 51, and then flows out from rising pipe 52, and such water coolant just can cool annular water tank 5, extends the work-ing life of annular water tank 5.
In the present embodiment, two pieces of dividing plates 53 are provided with in the inner chamber of annular water tank 5, and two pieces of dividing plates 53 are positioned on the same diameter line of annular water tank 5, two pieces of dividing plates 53 intercept the inner chamber of annular water tank 5 as first, second not connected separate chamber 541,542, the two ends of first, second separate chamber 541,542 are all respectively arranged with a water inlet pipe 51 and a rising pipe 52, and in first, second separate chamber 541,542 water coolant flow to identical, if do not arrange dividing plate 53 and only arrange a water inlet pipe and a rising pipe on annular water tank 5, the easily annularly flow and form whirlpool in the inner chamber of annular water tank 5 of such water coolant, the water coolant heated up is caused not discharge in time, thus affect the cooling performance of annular water tank 5, the present embodiment forms annularly flow in order to prevent water coolant in annular water tank 5 inner chamber, so annular water tank 5 inner chamber is intercepted into two separate chamber, and two separate chamber are all respectively arranged with a water inlet pipe and a rising pipe, such water coolant just can pass through annular water tank 5 fast, thus raising cooling performance, in addition, two pieces of dividing plates 53 are positioned on the same diameter line of annular water tank 5, can first be made like this, second separate chamber 541, 542 shapes are identical, thus make water coolant to first, second separate chamber 541, the cooling performance of 542 is identical, annular water tank 5 is avoided to produce distortion because two separate chamber cooling performances are different, in the present embodiment, the cross-sectional shape of annular water tank 5 inner chamber is rectangle, and the chamber width of annular water tank 5 inner chamber is not less than 40mm, the cross-sectional shape of annular water tank 5 inner chamber is set as that rectangle can make annular water tank 5 better for blocking, the height of annular water tank 5 can according to the assemblage gap between mouth fixed section flue 2 and interlude flue 3, and need the flue reserved expand with heat and contract with cold with gap and determine, the altitude range of usual annular water tank 5 is between 120 ~ 160mm, in the present embodiment, limiting the chamber width of annular water tank 5 inner chamber is cooling performance in order to ensure annular water tank 5, prevent from causing not having abundant water coolant to cool annular water tank 5 because chamber width is too small.In addition, after annular water tank 5 installs in assemblage gap, the mounting height of the water inlet pipe 51 on annular water tank 5 is lower than the mounting height of rising pipe 52, arrange like this and water coolant can be made to flow out from eminence from the lower inflow annular water tank 5 again, water coolant in annular water tank 5 can produce water vapour because of high temperature, the such flow direction of water coolant has complied with the ascension direction of water vapour in annular water tank 5, and water vapour can be made like this to discharge from annular water tank 5 very smoothly.
Beneficial effect of the present invention is: because the assemblage gap between mouth fixed section flue and interlude flue is excessive, so expanding with heat and contract with cold for compensating flue and reserve flue and expand with heat and contract with cold after with gap, annular water tank is utilized to block the residual gap in assemblage gap, red-hot so red slag to expand with heat and contract with cold slagging scorification in the chamber that to enter with gap and surrounded by mouth fixed section flue, interlude flue, sealing Extensible connection device with regard to not easily passing through the less flue of spacing, substantially reduce the scarfing cinder difficulty of converter evaporation cooling air flue, and then improve production efficiency; And operationally, by passing into water coolant to cool in annular water tank, thus improve the work-ing life of annular water tank.
Claims (7)
1. converter evaporation cooling air flue, comprise: be positioned at the movable gas hood above converter mouth, movable gas hood top is connected with mouth fixed section flue bottom, mouth fixed section flue top is connected by sealing Extensible connection device with interlude flue bottom, interlude flue top is connected with end flue, assemblage gap is there is between mouth fixed section flue and interlude flue, it is characterized in that: in assemblage gap, be provided with annular water tank, annular water tank is provided with water inlet pipe and rising pipe, and leave to expand with heat and contract with cold between annular water tank and mouth fixed section flue or interlude flue and use gap.
2. converter evaporation cooling air flue according to claim 1, it is characterized in that: in the inner chamber of annular water tank, be provided with two pieces of dividing plates, it is two not connected separate chamber that two pieces of dividing plates intercept the inner chamber of annular water tank, and the two ends of two separate chamber are all respectively arranged with water inlet pipe and rising pipe.
3. converter evaporation cooling air flue according to claim 2, is characterized in that: two pieces of dividing plates are positioned on the same diameter line of annular water tank.
4. the converter evaporation cooling air flue according to claim 1 or 2 or 3, is characterized in that: after annular water tank installs in assemblage gap, and the mounting height of the water inlet pipe on annular water tank is lower than the mounting height of rising pipe.
5. the converter evaporation cooling air flue according to claim 1 or 2 or 3, is characterized in that: the cross-sectional shape of annular water tank inner chamber is rectangle.
6. the converter evaporation cooling air flue according to claim 1 or 2 or 3, is characterized in that: the chamber width of annular water tank inner chamber is not less than 40mm.
7. converter evaporation cooling air flue according to claim 5, is characterized in that: the chamber width of annular water tank inner chamber is not less than 40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510045840.4A CN104561438B (en) | 2015-01-29 | 2015-01-29 | Converter evaporation cooling air flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510045840.4A CN104561438B (en) | 2015-01-29 | 2015-01-29 | Converter evaporation cooling air flue |
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| Publication Number | Publication Date |
|---|---|
| CN104561438A true CN104561438A (en) | 2015-04-29 |
| CN104561438B CN104561438B (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510045840.4A Active CN104561438B (en) | 2015-01-29 | 2015-01-29 | Converter evaporation cooling air flue |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023138040A1 (en) * | 2022-01-20 | 2023-07-27 | 中冶南方工程技术有限公司 | Flue of converter waste heat boiler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107472U (en) * | 1991-12-24 | 1992-06-17 | 上海冶金设计研究院 | Free expansion gap seal ring for rotary furnace flue |
| WO2000023626A1 (en) * | 1998-10-16 | 2000-04-27 | Bethlehem Steel Corporation | Off-gas hood for a basic oxygen furnace and method of repair |
| CN2910951Y (en) * | 2006-06-12 | 2007-06-13 | 江阴海陆冶金设备制造有限公司 | Expansion joint structure type evaporated cooling flue of steelmaking converter |
| CN204490921U (en) * | 2015-01-29 | 2015-07-22 | 江苏永钢集团有限公司 | Converter evaporation cooling air flue |
-
2015
- 2015-01-29 CN CN201510045840.4A patent/CN104561438B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107472U (en) * | 1991-12-24 | 1992-06-17 | 上海冶金设计研究院 | Free expansion gap seal ring for rotary furnace flue |
| WO2000023626A1 (en) * | 1998-10-16 | 2000-04-27 | Bethlehem Steel Corporation | Off-gas hood for a basic oxygen furnace and method of repair |
| CN2910951Y (en) * | 2006-06-12 | 2007-06-13 | 江阴海陆冶金设备制造有限公司 | Expansion joint structure type evaporated cooling flue of steelmaking converter |
| CN204490921U (en) * | 2015-01-29 | 2015-07-22 | 江苏永钢集团有限公司 | Converter evaporation cooling air flue |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023138040A1 (en) * | 2022-01-20 | 2023-07-27 | 中冶南方工程技术有限公司 | Flue of converter waste heat boiler |
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| Publication number | Publication date |
|---|---|
| CN104561438B (en) | 2016-04-20 |
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