CN102534123A - Waste heat recovery and heat insulation device for RH molten steel refining vacuum tank - Google Patents
Waste heat recovery and heat insulation device for RH molten steel refining vacuum tank Download PDFInfo
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- CN102534123A CN102534123A CN2010105900520A CN201010590052A CN102534123A CN 102534123 A CN102534123 A CN 102534123A CN 2010105900520 A CN2010105900520 A CN 2010105900520A CN 201010590052 A CN201010590052 A CN 201010590052A CN 102534123 A CN102534123 A CN 102534123A
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- air
- flue gas
- heat exchanger
- exchanger plates
- outlet
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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 relates to a waste heat recovery and heat insulation device for an RH molten steel refining vacuum tank. The device comprises a box, a heat insulation layer on each surface wall of the box, flue gas inlets, a middle flue gas passage, a flue gas outlet, an air inlet, an air outlet and heat exchange plate bundles, wherein the heat exchange plate bundles are symmetrically arranged on the two sides in the box; two flue gas inlets are communicated with an inlet of the flue gas passage of the heat exchange plate bundles; an outlet of the flue gas passage of the heat exchange plate bundles is communicated with the flue gas outlet formed on the front end face of the box through the middle flue gas passage in the center of the box; the air inlet is communicated with an air passage inlet of the heat exchange plate bundles; and the air outlet is communicated with an air passage outlet of the heat exchange plate bundles. The device has the advantages that: (1) the device has a simple structure and is easy to manufacture; (2) the device has a good heat exchange effect, and air can be preheated to a proper temperature; (3) heat brought out by flue gas can be effectively recovered; (4) the pollution to environment by the flue gas is reduced; and (5) the device can have a heat insulation effect on the vacuum tank; and the preheating time of the vacuum tank can be shortened.
Description
Technical field:
The present invention relates to the manufacturing liquid steel refining equipment of a kind of metallurgy, more specifically to a kind of waste heat recovery and attemperator of RH molten steel refining vacuum channel.
Background technology:
The RH molten steel refining vacuum channel need heat up or the heat-insulation preheating processing to it when producing, and is being used for having certain temperature when the molten steel vacuum refinement is handled to guarantee vacuum tank.Vacuum tank is treating that the seat in the plane adopts the burner combustion mode to carry out thermal pretreatment usually; Burner combustion produce the soaking tub of a large amount of flue gases through the vacuum tank bottom be discharged to outdoor or flue in; Flue gas has been taken away great amount of heat like this; So not only waste a large amount of fuel sources, also environment is caused pollution in various degree.
Summary of the invention:
The objective of the invention is to provide to the prior art weak point a kind of can be with vacuum tank at waste heat recovery and the attemperator of treating the RH molten steel refining vacuum channel that heat recuperation that a large amount of flue gases that the seat in the plane produces when using the burner combustion heating are taken away is got up.
The objective of the invention is to realize: a kind of waste heat recovery of RH molten steel refining vacuum channel and attemperator through following measure; Its special character is; Comprise casing and the casing thermal insulation layer on respectively facing the wall and meditating, gas approach, middle exhaust gases passes, exhanst gas outlet, air, air, heat exchanger plates bundle; Said heat exchanger plates bundle is arranged symmetrically in both sides in the casing; Two gas approachs are arranged in the casing upper epidermis of heat exchanger plates Shu Shangfang separately and are connected with the exhaust gases passes inlet of heat exchanger plates bundle, and the exhaust gases passes outlet of heat exchanger plates bundle is connected with the exhanst gas outlet that is arranged in the casing front end face through the middle exhaust gases passes that is arranged in casing central authorities; Said air, air are arranged in the heat exchanger plates bundle and are positioned on the casing right side of same aspect, the left two side, and air is connected with heat exchanger plates bundle air passageways inlet, and air is connected with the outlet of heat exchanger plates bundle air passageways.
Compared with prior art, the waste heat recovery and the attemperator of the RH molten steel refining vacuum channel that the present invention proposes have following advantage: 1) simple in structure, be easy to make; 2) good effect of heat exchange can be with preheating of air to suitable temperature; 3) can effectively reclaim the heat that flue gas is taken out of; 4) reduce the pollution of flue gas to environment; 5) can play insulation effect to vacuum tank, reduce vacuum tank warm up time.
Description of drawings:
Fig. 1 is an embodiment of the invention longitudinal profile structural representation.
Fig. 2 is Fig. 1 embodiment horizontal section structural representation.
Embodiment:
Below in conjunction with accompanying drawing embodiment is elaborated: Fig. 1～Fig. 2 is embodiment of the invention longitudinal profile and horizontal section structural representation.Among the figure, a kind of waste heat recovery of RH molten steel refining vacuum channel and attemperator comprise: the thermal insulation layer 10 on casing 11 and casing are are respectively faced the wall and meditated, gas approach 7, middle exhaust gases passes 3, exhanst gas outlet 6, air 4, air 1, heat exchanger plates bundle 9.Said heat exchanger plates bundle 9 is arranged symmetrically in both sides in the casing 11; Two gas approachs 7 are arranged in casing 11 upper epidermiss of heat exchanger plates Shu Shangfang separately and are connected with the exhaust gases passes inlet of heat exchanger plates bundle 9, and the exhaust gases passes outlet of heat exchanger plates bundle 9 is connected with the exhanst gas outlet 6 that is arranged in casing 11 front end faces through the middle exhaust gases passes 3 that is arranged in casing central authorities.Arrow among Fig. 1 has been represented the flow direction of flue gas; The two-way flue gas gets into heat exchanger plates bundle exhaust gases passes and heat exchanger plates bundle air passageways and carries out energy exchange from heat exchanger plates bundle 9 tops; Its flue-gas temperature constantly reduces; Flue gas converges behind heat exchanger plates bundle 9 together and discharges from intermediary exhaust gases passes 3, exhanst gas outlet 6, is disposed to the flue gas house steward.Said air 4, air 1 is arranged in and heat exchanger plates bundle 9 is positioned on casing 11 right side walls, left side wall of same aspect; Air 4 is connected with heat exchanger plates bundle 9 air passagewayss inlet, and air 1 is connected with the outlet of heat exchanger plates bundle 9 air passagewayss.Arrow among Fig. 2 has been represented the flow direction of air; Air is sent into from air 4; The air passageways and heat exchanger plates bundle 9 exhaust gases passes that get into heat exchanger plates bundle 9 carry out energy exchange; Air after the intensification comes out the back through air 1 outflow by heat exchanger plates bundle 9 air passagewayss, gets into the preheated air house steward then.
When the RH molten steel refining vacuum channel when treating that the burner combustion heating is used in the seat in the plane, after the temperature in the vacuum tank had reached the technology request for utilization, thermal insulation layer of the present invention can also play insulation effect to vacuum tank.
The foregoing description is not construed as limiting the invention, and all employings are equal to the technical scheme that form obtained of replacement or equivalent transformation, all drop within protection scope of the present invention.
Claims (1)
1. the waste heat recovery of a RH molten steel refining vacuum channel and attemperator is characterized in that, include casing and the casing thermal insulation layer on respectively facing the wall and meditating, gas approach, middle exhaust gases passes, exhanst gas outlet, air, air, heat exchanger plates bundle; Said heat exchanger plates bundle is arranged symmetrically in both sides in the casing; Two gas approachs are arranged in the casing upper epidermis of heat exchanger plates Shu Shangfang separately and are connected with the exhaust gases passes inlet of heat exchanger plates bundle, and the exhaust gases passes outlet of heat exchanger plates bundle is connected with the exhanst gas outlet that is arranged in the casing front end face through the middle exhaust gases passes that is arranged in casing central authorities; Said air, air are arranged in the heat exchanger plates bundle and are positioned on the casing right side of same aspect, the left two side, and air is connected with heat exchanger plates bundle air passageways inlet, and air is connected with the outlet of heat exchanger plates bundle air passageways.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105900520A CN102534123A (en) | 2010-12-14 | 2010-12-14 | Waste heat recovery and heat insulation device for RH molten steel refining vacuum tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105900520A CN102534123A (en) | 2010-12-14 | 2010-12-14 | Waste heat recovery and heat insulation device for RH molten steel refining vacuum tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102534123A true CN102534123A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105900520A Pending CN102534123A (en) | 2010-12-14 | 2010-12-14 | Waste heat recovery and heat insulation device for RH molten steel refining vacuum tank |
Country Status (1)
| Country | Link |
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| CN (1) | CN102534123A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5684412A (en) * | 1979-12-10 | 1981-07-09 | Nippon Kokan Kk <Nkk> | Operating method of steel plate heating device |
| CN101122446A (en) * | 2007-09-12 | 2008-02-13 | 北京科技大学 | Continuous heat-storage type fume residual heat recovering device |
| CN201335629Y (en) * | 2009-01-14 | 2009-10-28 | 河北工业大学 | Honeycomb ceramic heat exchanger |
| CN101634529A (en) * | 2008-07-25 | 2010-01-27 | 上海雷林流体设备有限公司 | Preheating system of plate heat exchanger of hot blast furnace |
| CN201999963U (en) * | 2010-12-14 | 2011-10-05 | 上海雷林低碳工程技术股份有限公司 | Residual heat recycling and heat preserving device of Ruhrstahl-Heraeus (RH) molten steel refining vacuum groove |
-
2010
- 2010-12-14 CN CN2010105900520A patent/CN102534123A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5684412A (en) * | 1979-12-10 | 1981-07-09 | Nippon Kokan Kk <Nkk> | Operating method of steel plate heating device |
| CN101122446A (en) * | 2007-09-12 | 2008-02-13 | 北京科技大学 | Continuous heat-storage type fume residual heat recovering device |
| CN101634529A (en) * | 2008-07-25 | 2010-01-27 | 上海雷林流体设备有限公司 | Preheating system of plate heat exchanger of hot blast furnace |
| CN201335629Y (en) * | 2009-01-14 | 2009-10-28 | 河北工业大学 | Honeycomb ceramic heat exchanger |
| CN201999963U (en) * | 2010-12-14 | 2011-10-05 | 上海雷林低碳工程技术股份有限公司 | Residual heat recycling and heat preserving device of Ruhrstahl-Heraeus (RH) molten steel refining vacuum groove |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |