CN204313660U - A kind of waste heat recovery EGR of iron and steel smelting - Google Patents
A kind of waste heat recovery EGR of iron and steel smelting Download PDFInfo
- Publication number
- CN204313660U CN204313660U CN201420649463.6U CN201420649463U CN204313660U CN 204313660 U CN204313660 U CN 204313660U CN 201420649463 U CN201420649463 U CN 201420649463U CN 204313660 U CN204313660 U CN 204313660U
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- CN
- China
- Prior art keywords
- pipe
- collector cavity
- heat collector
- heat
- iron
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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
- Y02P10/25—Process efficiency
-
- 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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model provides a kind of waste heat recovery EGR of iron and steel smelting, it includes air exhauster, circulation pipe, heat collector cavity, energy recovery pipe, wherein, circulation pipe one end is connected with the main heating tube at smelting furnace top, the circulation pipe other end is connected with heat collector cavity one end, heat collector cavity is dug by the subsurface being positioned at smelting furnace side and is formed, and heat collector cavity inner chamber is equipped with insulation material; Be connected with bottom smelting furnace by pre-buried energy recovery pipe bottom heat collector cavity; Energy recovery pipe is provided with the mechanical type regulating gate extending ground, and is controlled by regulating gate; The heat collector cavity other end is provided with takes out heat pipe, takes out heat pipe and is connected with air exhauster.The structure of this programme is simple, easy to use, waste heat in stove all can be collected and recycle.
Description
Technical field
The utility model relates to smelting iron and steel, refers in particular to a kind of waste heat recovery EGR of iron and steel smelting.
Background technology
The modern ironmaking overwhelming majority adopts blast furnace ironmaking, adopts direct reduction iron making and electrometal furnace process individually.Blast furnace ironmaking is reduced in blast furnace by iron ore, and the pig iron is smelt in fusing, and this method is easy and simple to handle, and energy consumption is low, with low cost, can produce in a large number.The pig iron is except part is used for foundry goods, and major part is used as steelmaking feed.Owing to adapting to the high grade coke coal worsening shortages of blast furnace process, in succession there is the non-blast furnace ironmaking method with other energy without coke.Direct reduction iron making, in the solid state with gas or solid reductant reduction by ore, lower than at ore melt temperature, be smelt the sponge iron of solid containing a small amount of impurity element or semi-molten state, metallized pellet or granulated iron, as steelmaking feed (also can make the raw material of blast furnace ironmaking or casting).Electrometal furnace process, the electric reduction furnace adopted without shaft, the poor coke (or coal, charcoal) of usable intensity makes reducing agent more.The electrical heating of electric furnace ironmaking replaces part of coke, and available rudimentary coke, but power consumption is large, can only use under, condition that electricity price is cheap sufficient at electric power.Blast furnace ironmaking needs a large amount of heat energy when smelting, and mostly existing or employing coal carries out heat supply, and smelting furnace can produce a large amount of waste heat after a procedure, and existing is that waste heat cools by direct cooling device mostly, and this wastes energy consumption greatly as one, adds production cost.
Summary of the invention
The purpose of this utility model is to provide the waste heat recovery EGR that a kind of structure of iron and steel smelting is simple, collect waste heat, recycle.
For achieving the above object, technical scheme provided by the utility model is: a kind of waste heat recovery EGR of iron and steel smelting, it includes air exhauster, circulation pipe, heat collector cavity, energy recovery pipe, wherein, circulation pipe one end is connected with the main heating tube at smelting furnace top, the circulation pipe other end is connected with heat collector cavity one end, and heat collector cavity is dug by the subsurface being positioned at smelting furnace side and formed, and heat collector cavity inner chamber is equipped with insulation material; Be connected with bottom smelting furnace by pre-buried energy recovery pipe bottom heat collector cavity; Energy recovery pipe is provided with the mechanical type regulating gate extending ground, and is controlled by regulating gate; The heat collector cavity other end is provided with takes out heat pipe, takes out heat pipe and is connected with air exhauster.
Described air exhauster is two groups, is connected to same takes out on heat pipe by duct set.
The utility model is after employing such scheme, when smelting furnace is smelted, regulating gate cuts out, prevent heat energy in stove from releasing, after being used to complete, regulating gate is opened, and the heat energy in smelting furnace is extracted out and is delivered in main heating tube and recycles by air exhauster, and the structure of this programme is simple, easy to use, waste heat in stove all can be collected and recycle.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is heat collector cavity connection diagram of the present utility model.
Detailed description of the invention
Below in conjunction with institute's drawings attached, the utility model is described in further detail, preferred embodiment of the present utility model is: see accompanying drawing 1 and accompanying drawing 2, the waste heat recovery EGR of the iron and steel smelting described in the present embodiment includes air exhauster E1, circulation pipe E2, heat collector cavity E3, energy recovery pipe E4, wherein, circulation pipe E2 one end is connected with the main heating tube at smelting furnace top, the circulation pipe E2 other end is connected with heat collector cavity E3 one end, heat collector cavity E3 is dug by the subsurface being positioned at smelting furnace side and is formed, and heat collector cavity E3 inner chamber is equipped with insulation material; Be connected with bottom smelting furnace by pre-buried energy recovery pipe E4 bottom heat collector cavity E3; Energy recovery pipe E4 is provided with the mechanical type regulating gate E5 extending ground, and is controlled by regulating gate E5; The heat collector cavity E3 other end is provided with takes out heat pipe E6, takes out heat pipe E6 and is connected with air exhauster E1.Air exhauster E1 is two groups, is connected to same takes out on heat pipe E6 by duct set.When smelting furnace is smelted, regulating gate cuts out, and prevent heat energy in stove from releasing, after being used to complete, regulating gate is opened, and the heat energy in smelting furnace is extracted out to be delivered in main heating tube and recycled by air exhauster.
The embodiment of the above is only the preferred embodiment of the utility model, not limits practical range of the present utility model with this, therefore the change that all shapes according to the utility model, principle are done, all should be encompassed in protection domain of the present utility model.
Claims (2)
1. the waste heat recovery EGR of an iron and steel smelting, it is characterized in that: it includes air exhauster (E1), circulation pipe (E2), heat collector cavity (E3), energy recovery pipe (E4), wherein, circulation pipe (E2) one end is connected with the main heating tube at smelting furnace top, circulation pipe (E2) other end is connected with heat collector cavity (E3) one end, heat collector cavity (E3) is dug by the subsurface being positioned at smelting furnace side and is formed, and heat collector cavity (E3) inner chamber is equipped with insulation material; Heat collector cavity (E3) bottom is connected with bottom smelting furnace by pre-buried energy recovery pipe (E4); Energy recovery pipe (E4) is provided with the mechanical type regulating gate (E5) extending ground, and is controlled by regulating gate (E5); Heat collector cavity (E3) other end is provided with takes out heat pipe (E6), takes out heat pipe (E6) and is connected with air exhauster (E1).
2. the waste heat recovery EGR of a kind of iron and steel smelting according to claim 1, is characterized in that: air exhauster (E1) is two groups, is connected to same takes out on heat pipe (E6) by duct set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420649463.6U CN204313660U (en) | 2014-11-04 | 2014-11-04 | A kind of waste heat recovery EGR of iron and steel smelting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420649463.6U CN204313660U (en) | 2014-11-04 | 2014-11-04 | A kind of waste heat recovery EGR of iron and steel smelting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204313660U true CN204313660U (en) | 2015-05-06 |
Family
ID=53135968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420649463.6U Expired - Fee Related CN204313660U (en) | 2014-11-04 | 2014-11-04 | A kind of waste heat recovery EGR of iron and steel smelting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204313660U (en) |
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2014
- 2014-11-04 CN CN201420649463.6U patent/CN204313660U/en not_active Expired - Fee Related
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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: 20150506 Termination date: 20161104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |