CN102914172A - Method and device for recycling and storing comprehensive residual heat of ferroalloy furnace so as to generate electricity - Google Patents
Method and device for recycling and storing comprehensive residual heat of ferroalloy furnace so as to generate electricity Download PDFInfo
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- CN102914172A CN102914172A CN2012104639725A CN201210463972A CN102914172A CN 102914172 A CN102914172 A CN 102914172A CN 2012104639725 A CN2012104639725 A CN 2012104639725A CN 201210463972 A CN201210463972 A CN 201210463972A CN 102914172 A CN102914172 A CN 102914172A
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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
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Abstract
The invention relates to a method for recycling and storing the comprehensive residual heat of a ferroalloy furnace so as to generate electricity, which comprises the steps that: comprehensive residual heat in a ferroalloy plant is recycled and stored through a heat transfer/storage working medium, and a heat source is stably output; and the heat source drives a turbine generating system through heat transfer. The method disclosed by the invention has the advantages that a comprehensive residual heat resource of a ferroalloy furnace is recycled, so that the energy waste is reduced, and the cost is lowered; and a high-temperature heat transfer/storage working medium is taken as a heat transfer medium, thereby facilitating the stable storage and effective utilization of thermal energy.
Description
Technical field
The present invention relates to industrial afterheat recovery and utilize technology, particularly a kind of comprehensive waste heat of storage iron alloying furnace that reclaims is for the method and apparatus of generating.
Background technology
Along with the fast development of current industrial, the waste heat of factory's discharging rolls up, and industrial afterheat recovery has become one of important content of industrial circle energy-saving and emission-reduction with recycling.
But, because a large amount of waste heats of ferroalloy production process discharging are dispersion, intermittence, and the less stable of heat supply, therefore, prior art can't realize the function of comprehensive memory recall waste heat and stable heating, and these factors have directly affected operating mode, the quality and effect that utilizes afterheat generating system.
Summary of the invention
The object of the invention is to overcome the prior art defective, and a kind of method and apparatus that the comprehensive waste heat of storage iron alloying furnace is used for generating that reclaims is provided.
The present invention realizes according to following proposal:
A kind of comprehensive waste heat of storage iron alloying furnace that reclaims reclaims, stores the comprehensive waste heat in the ferroalloy works by passing heat accumulation working medium for the method for generating, and stable output thermal source; This thermal source drives the steamer electricity generation system by heat exchange;
A kind of comprehensive waste heat of storage iron alloying furnace that reclaims comprises heat-transfer working medium high temperature storage tank, high-temperature heat-exchanging, heat-transfer working medium cryogenic storage tank, electricity generation system for the device of generating; Pass heat accumulation working medium and enter ferroalloy built in flue heat exchanger and molten iron condensate tank(trap) built-in heat exchanger by pipeline, absorb flue gas heat and molten iron distribute heat, form closed thermal cycle pipeline with hot working fluid high temperature storage tank, high-temperature heat-exchanging, heat-transfer working medium cryogenic storage tank, by high-temperature heat-exchanging to electricity generation system stable output thermal source.
Its advantage that has is: recycle the comprehensive residual heat resources of ferro-alloy furnace and reduced energy waste, reduced cost; Utilize high temperature to pass heat accumulation working medium and be conducive to the stable storage of heat energy and efficiently utilization as heat exchange medium.
Description of drawings
Fig. 1 is apparatus of the present invention schematic diagram;
Among the figure: the 1-heat exchanger; The 2-burner hearth; The 3-flue; 4-heat-transfer working medium high temperature storage tank; 5-heat-transfer working medium cryogenic storage tank; The 6-high-temperature heat-exchanging; The 7-by-pass valve control; The 8-steam turbine; The 9-generating set; The 10-cooling tower; The 11-water tank; The 12-ferro-alloy furnace; The 13-condensate tank(trap); The 14-heat exchanger.
The specific embodiment
As shown in Figure 1, a kind of comprehensive waste heat of storage iron alloying furnace that reclaims is for the device of generating, described device is a kind ofly to be cooled to the device that heat reclaims in the heat that distributes in the base process and high-temperature flue (3) the discharging combustion product gases process for ferro-alloy furnace (12) molten iron discharging in the ferroalloy production process at condensate tank(trap) (13), utilize respectively the heat exchanger (14) be laid under the condensate tank(trap) separation layer and the heat exchanger (1) of high-temperature flue inwall that heat and the low temperature biography heat accumulation working medium of distributing are carried out heat exchange, and be stored in the heat-transfer working medium high temperature storage tank (4) by the biography heat accumulation working medium after the heat exchange, again high temperature is passed heat accumulation working medium and carry out heat exchange by the water that high-temperature heat-exchanging (6) and water tank (11) flow through, make the water after the heat exchange form water vapour, and utilize water vapour driving steam turbine (8) to drive generating set (9) generating.Cryogenic heat transfer working medium is back in the heat-transfer working medium cryogenic storage tank (5) and keeps deposit, and recirculation enters, and continuation absorbs the comprehensive residual heat resources of ferro-alloy furnace in endothermic heat exchanger (1), (14); When not having residual heat resources to produce, just utilize when the time comes the high temperature that is stored in the heat-transfer working medium high temperature storage tank (4) to pass heat accumulation working medium the heat energy that provides that system continues is provided.
Its workflow is: cryogenic heat transfer working medium is stored in the cryogenic storage tank (5) as heat-absorbing medium, when ferroalloy smelting, when the high-temperature flue gas that burner hearth (2) burning produces is discharged from flue (3), cryogenic heat transfer working medium is carried out heat exchange by being laid on the inner heat exchanger (1) of high-temperature flue (3); Equally when ferro-alloy furnace (12) molten iron discharging, condensate tank(trap) (13) can distribute heat of high temperature towards periphery, (heat exchanger (14) of 13 separation layers bottom carries out heat exchange by being laid on condensate tank(trap) with cryogenic heat transfer working medium, be high temperature heat transfer working medium behind the heat in the cryogenic heat transfer working medium absorption residual heat resources, high temperature heat transfer working medium is stored in the stability product that carries out heat energy in the heat-transfer working medium high temperature storage tank (4) involves the insulation storage, remedy the defective of the technical barriers such as the comprehensive residual heat resources of ferro-alloy furnace are single, intermittence, unstability; High temperature heat transfer working medium by the residual heat resources recovery system can enter the heat exchange regulating system in addition, heat energy in the high temperature heat transfer working medium is exchanged by high-temperature heat-exchanging (6) and water, be back in the heat-transfer working medium cryogenic storage tank (5) after the high temperature heat transfer working medium transferring heat energy, water is then because the heat that has exchanged fully in the high temperature heat transfer working medium forms steam driving steam turbine (8) rotation and drive generating set (9) generating.When not having residual heat resources, the high temperature heat transfer working medium that is stored in the heat-transfer working medium high temperature storage tank (4) can for the lasting continuation heat supply of system, make system can stablize the lasting heat supply of carrying out.
Under condensate tank(trap) (13) separation layer that described residual heat resources recovery system mainly is heat exchanger (1) that the high-temperature-resistant and anti-corrosion material is made, (14) are laid on the ferro-alloy furnace molten iron discharging and flue (3) inside.When carrying out ferroalloy smelting, the burning coal release heat is carried out molten iron and is melted, high-temperature flue gas discharge-channel (3) will discharge burning high-temperature flue gas later, heat when the molten iron in the casting furnace is poured in the condensate tank(trap) (13) in the molten iron will distribute, heat exchanger (1) is installed in the concentrated area of Decay heat removal, make cryogenic heat transfer working medium by heat exchanger (1) and heat exchanger (14) time, carry out heat exchange and reclaim residual heat resources.
Claims (3)
1. one kind is reclaimed the method that the comprehensive waste heat of storage iron alloying furnace is used for generating, and by passing heat accumulation working medium the comprehensive waste heat in the ferroalloy works is reclaimed, stores, and stable output thermal source; This thermal source drives the steamer electricity generation system by heat exchange.
2. one kind is reclaimed the device that the comprehensive waste heat of storage iron alloying furnace is used for generating, comprise heat-transfer working medium high temperature storage tank (4), high-temperature heat-exchanging (6), heat-transfer working medium cryogenic storage tank (5), electricity generation system (8), it is characterized in that passing heat accumulation working medium and enter ferroalloy built in flue heat exchanger (1) and molten iron condensate tank(trap) built-in heat exchanger (14) by pipeline, absorb flue gas heat and molten iron distribute heat, with heat-transfer working medium high temperature storage tank (4), high-temperature heat-exchanging (6), heat-transfer working medium cryogenic storage tank (5) forms closed thermal cycle pipeline, by high-temperature heat-exchanging (6) to electricity generation system stable output thermal source.
3. the comprehensive waste heat of recovery storage iron alloying furnace as claimed in claim 1 is used for the method for generating, it is characterized in that described biography heat accumulation working medium is conduction oil or fuse salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104639725A CN102914172A (en) | 2012-11-16 | 2012-11-16 | Method and device for recycling and storing comprehensive residual heat of ferroalloy furnace so as to generate electricity |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104639725A CN102914172A (en) | 2012-11-16 | 2012-11-16 | Method and device for recycling and storing comprehensive residual heat of ferroalloy furnace so as to generate electricity |
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| CN102914172A true CN102914172A (en) | 2013-02-06 |
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| CN2012104639725A Pending CN102914172A (en) | 2012-11-16 | 2012-11-16 | Method and device for recycling and storing comprehensive residual heat of ferroalloy furnace so as to generate electricity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478067A (en) * | 2017-09-14 | 2017-12-15 | 思安新能源股份有限公司 | Heat recovery system |
| CN109737765A (en) * | 2018-12-20 | 2019-05-10 | 西安交通大学 | A kind of heat storing type electric stone pot residual neat recovering system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11223417A (en) * | 1998-02-04 | 1999-08-17 | Sumitomo Metal Ind Ltd | Recovering method of low-temperature waste heat generated by iron making process |
| CN2549417Y (en) * | 2002-06-19 | 2003-05-07 | 秦皇岛玻璃工业研究设计院 | Power generating system by glass-kiln waste heat |
| CN202280589U (en) * | 2011-11-09 | 2012-06-20 | 宁夏光合能源科技有限公司 | Solar energy and biomass energy complementary combined thermal power generation device |
| CN202322887U (en) * | 2011-11-11 | 2012-07-11 | 旭正（天津）节能科技有限公司 | Heat energy displacement generating system for molten iron flow channel of iron-smelting blast furnace |
| CN102620572A (en) * | 2012-04-16 | 2012-08-01 | 北京世纪源博科技股份有限公司 | Ferroalloy mine heat furnace system with waste heat power generation system |
-
2012
- 2012-11-16 CN CN2012104639725A patent/CN102914172A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11223417A (en) * | 1998-02-04 | 1999-08-17 | Sumitomo Metal Ind Ltd | Recovering method of low-temperature waste heat generated by iron making process |
| CN2549417Y (en) * | 2002-06-19 | 2003-05-07 | 秦皇岛玻璃工业研究设计院 | Power generating system by glass-kiln waste heat |
| CN202280589U (en) * | 2011-11-09 | 2012-06-20 | 宁夏光合能源科技有限公司 | Solar energy and biomass energy complementary combined thermal power generation device |
| CN202322887U (en) * | 2011-11-11 | 2012-07-11 | 旭正（天津）节能科技有限公司 | Heat energy displacement generating system for molten iron flow channel of iron-smelting blast furnace |
| CN102620572A (en) * | 2012-04-16 | 2012-08-01 | 北京世纪源博科技股份有限公司 | Ferroalloy mine heat furnace system with waste heat power generation system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478067A (en) * | 2017-09-14 | 2017-12-15 | 思安新能源股份有限公司 | Heat recovery system |
| CN109737765A (en) * | 2018-12-20 | 2019-05-10 | 西安交通大学 | A kind of heat storing type electric stone pot residual neat recovering system |
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Application publication date: 20130206 |