CN202643713U - Blast furnace slag flushing water waste heat recovery system - Google Patents
Blast furnace slag flushing water waste heat recovery system Download PDFInfo
- Publication number
- CN202643713U CN202643713U CN2012201788969U CN201220178896U CN202643713U CN 202643713 U CN202643713 U CN 202643713U CN 2012201788969 U CN2012201788969 U CN 2012201788969U CN 201220178896 U CN201220178896 U CN 201220178896U CN 202643713 U CN202643713 U CN 202643713U
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- CN
- China
- Prior art keywords
- blast furnace
- furnace slag
- heat exchanger
- waste heat
- water waste
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- Y02P10/20—Recycling
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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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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Abstract
The utility model discloses a blast furnace slag flushing water waste heat recovery system which is an integration formed by sequential connection of a blast furnace slag flushing water system, a heat exchange system and a waste heat recovery system. The blast furnace slag flushing water waste heat recovery system is characterized in that an immersed-type heat exchanger is adopted in the heat exchange system to be used as the heat exchanger for the blast furnace slag flushing water waste heat recovery system. The immersed-type heat exchanger comprises a liquid groove and a heat-transferring pipe which is arranged inside the liquid groove, and an upper cover plate is arranged on the top of the immersed-type heat exchanger. By adopting the immersed-type heat exchanger, the blast furnace slag flushing water waste heat recovery system has the advantages of being simple in structure, convenient to manufacture and repair, easy to clean and the like. In addition, equipment can be replaced conveniently. The blast furnace slag flushing water waste heat recovery system is applied to large-scale industrialization utilization of blast furnace slag flushing water.
Description
Technical field
The utility model relates to a kind of blast furnace slag quenching water waste heat recycling system.
Background technology
Steel Plant are in blast furnace iron-making process, and the slag temperature of generation is approximately about 1000 ℃, and the high velocity flow chilling that this slag is provided by slag flushing pump in dreg flushing tank is washed into grain slag and granulation, for the usefulness of production.Can produce large amount temperature in this process is blast furnace slag quenching water at 80 ~ 95 ℃ low-temperature water heating.The characteristics of blast furnace slag quenching water low temperature exhaust heat are: heat source temperature is lower, and flow is large, is subjected to blast-furnace smelting, water source supply, working specification etc. because of the fluctuation that all there are certain amplitude in blast furnace slag flushing discharge and temperature that affects of rope.In addition, blast furnace slag quenching water also has the solid slag particle of non-quantitative, can form the deposition dirt.
Above characteristics have proposed test for the heat-exchange system of blast furnace slag quenching water, conventional heat-exchange system, such as tube and shell heat exchanger, although can be used for the heat exchange of blast furnace slag quenching water, but there is easy incrustation, is difficult to clean, also be difficult to the shortcomings such as replacing after equipment is corroded.
The utility model content
The purpose of this utility model is the deficiency that overcomes heat-exchange equipment in the existing blast furnace slag quenching water waste heat recovery, provides that a kind of technology is reliable, simple possible, practical blast furnace slag quenching water waste heat recycling system.
The purpose of this utility model is achieved through the following technical solutions: a kind of blast furnace slag quenching water waste heat recycling system, be linked in sequence and form integral body by blast furnace slag flushing water system, heat-exchange system and bootstrap system, it is characterized in that: described heat-exchange system adopts the immersed type heat exchanger to make the interchanger of blast furnace slag quenching water waste heat recovery, described immersed type heat exchanger comprises liquid bath and is arranged on heat-transfer pipe in the liquid bath that described immersed type heat exchanger top is provided with upper cover plate.
The heat-transfer pipe of described immersed type heat exchanger can adopt straight tube or spirrillum bend pipe to form heat-transfer surface, in the container or pond that pipe are immersed in liquid.Liquid volume in the liquid bath is large, and flow velocity is low, thereby the heat transfer in the outer liquid of pipe is carried out in the natural convection mode.The internal temperature of whole liquid generally equals or close to the outlet temperature of liquid, heat transfer temperature difference is little, simultaneously because the volume of whole liquid is large, so this heat exchanger is not very sensitive for the change of operating mode.
Described immersed type heat exchanger upper cover plate can be set as movable, perhaps is provided with opening, clears up when safeguarding when needs, conveniently enters the immersed type heat exchanger, finishes the incrustation cleaning, the work such as heat-transfer pipe replacing.
In concrete implementation process, generally purchase two cover immersed type heat exchangers, a cover comes into operation, after operation for some time, can produce incrustation, affect heat exchange efficiency, need to clear up, perhaps because other problems, operating system needs to be serviced repairing, at this time can cut heat exchange system for subsequent use, be used alternatingly thereby form, not affect system's normal operation.
Therefore, the immersed type heat exchanger that the utility model proposes can solve the problems such as flow temperature fluctuation, incrustation and corrodibility in the blast furnace slag quenching water heat exchange, for the utilization of blast furnace slag quenching water waste heat provides a reliable technology.
Description of drawings
Accompanying drawing 1 is waste heat recovery system of blast furnace slag quenching water synoptic diagram of the present utility model.
In the drawings, 1, blast furnace slag flushing water system; 2, bootstrap system; 3, upper cover plate; 4, liquid bath; 5, heat-transfer pipe; 6, cycle fluid pump; 7, water circulating pump.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is conducted further description:
As shown in Figure 1, blast furnace slag quenching water waste heat recycling system of the present utility model, as shown in Figure 1, comprising: the upper cover plate 3 of blast furnace slag flushing water system 1, bootstrap system 2, immersed type heat exchanger, the liquid bath 4 of immersed type heat exchanger, the heat-transfer pipe 5 of immersed type heat exchanger, cycle fluid pump 6, water circulating pump 7.
Its technical process is as follows: blast furnace slag quenching water from system 1 out after, enter the liquid bath 4 of immersed type heat exchanger, using exhaust heat of slag flushing water is realized heat transmission with working medium by heat-transfer pipe 5 in liquid bath.After the heat exchange of flushing cinder water, squeeze into the blast furnace slag flushing water system by water circulating pump 7, carry out the circulation of next round.Working medium enters bootstrap system 2 after being heated in heat-transfer pipe 5, this part waste heat can be used for doing work and generate electricity, and also can be used to heating, and utilization is squeezed into heat exchange system again by working medium pump 6 after finishing.
The tricks of immersed type design of heat exchanger is decided as the case may be, mainly considers the characteristic of place, economy and flushing cinder water.Certainly, according to slag particle in the blast furnace slag quenching water, when the suspended substance equal size is larger, also can set up separately settling bowl, reduce the frequency of the cleaning of immersed type heat exchange system.
Claims (5)
1. blast furnace slag quenching water waste heat recycling system, be linked in sequence and form integral body by blast furnace slag flushing water system, heat-exchange system and bootstrap system, it is characterized in that: described heat-exchange system adopts the immersed type heat exchanger to make the interchanger of blast furnace slag quenching water waste heat recovery, described immersed type heat exchanger comprises liquid bath and is arranged on heat-transfer pipe in the liquid bath that described immersed type heat exchanger top is provided with upper cover plate.
2. blast furnace slag quenching water waste heat recycling system according to claim 1 is characterized in that: the heat-transfer pipe employing straight tube composition heat-transfer surface of described immersed type heat exchanger.
3. blast furnace slag quenching water waste heat recycling system according to claim 1 is characterized in that: the heat-transfer pipe employing spirrillum bend pipe composition heat-transfer surface of described immersed type heat exchanger.
4. blast furnace slag quenching water waste heat recycling system according to claim 1, it is characterized in that: described immersed type heat exchanger upper cover plate is set as movable.
5. blast furnace slag quenching water waste heat recycling system according to claim 1, it is characterized in that: described immersed type heat exchanger upper cover plate is provided with opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201788969U CN202643713U (en) | 2012-04-25 | 2012-04-25 | Blast furnace slag flushing water waste heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201788969U CN202643713U (en) | 2012-04-25 | 2012-04-25 | Blast furnace slag flushing water waste heat recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202643713U true CN202643713U (en) | 2013-01-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201788969U Expired - Fee Related CN202643713U (en) | 2012-04-25 | 2012-04-25 | Blast furnace slag flushing water waste heat recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202643713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103103301A (en) * | 2013-03-04 | 2013-05-15 | 天津华赛尔传热设备有限公司 | Multi-path heat exchanger for blast furnace slag flushing water |
-
2012
- 2012-04-25 CN CN2012201788969U patent/CN202643713U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103103301A (en) * | 2013-03-04 | 2013-05-15 | 天津华赛尔传热设备有限公司 | Multi-path heat exchanger for blast furnace slag flushing water |
| CN103103301B (en) * | 2013-03-04 | 2014-07-16 | 天津华赛尔传热设备有限公司 | Multi-path heat exchanger for blast furnace slag flushing water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20180425 |
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| CF01 | Termination of patent right due to non-payment of annual fee |