CN103851923B - A kind of efficient electric-melting magnesium lump afterheat convection current radiation Π type straddles heat-exchangers of the plate type - Google Patents
A kind of efficient electric-melting magnesium lump afterheat convection current radiation Π type straddles heat-exchangers of the plate type Download PDFInfo
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- CN103851923B CN103851923B CN201410025769.9A CN201410025769A CN103851923B CN 103851923 B CN103851923 B CN 103851923B CN 201410025769 A CN201410025769 A CN 201410025769A CN 103851923 B CN103851923 B CN 103851923B
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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
- 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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Abstract
A kind of efficient electric-melting magnesium lump afterheat convection current radiation Π type straddles heat-exchangers of the plate type, stainless steel heat transfer plate composition Π type is adopted to straddle heat-exchangers of the plate type, three sections of compositions before, during and after interchanger divides, be interconnected between them, low-temperature vaporization liquid medium is filled with in a heat exchanger, before, during and after making, three sections of every section of heat exchanger plates are heated, liquid medium all can mutually evenly after clamp-on in interior fluid reservoir, all press in fluid reservoir with pushing generator work when just entering after inner storage tank produces certain pressure.Compared with prior art, the invention has the beneficial effects as follows: be produced into that low low, long service life heat exchanger effectiveness is high, be applicable to the hot lump afterheat recovery system of large-scale electric-melting magnesium.Do not adopt water as heat transfer medium, but adopt low-temperature vaporization medium to conduct heat, overcome the problems such as the calcium ion deposition brought as heat transfer medium due to water, can practical requirement.
Description
Technical field
The present invention relates to interchanger field, particularly relate to a kind of efficient electric-melting magnesium lump afterheat convection current radiation Π type and straddle heat-exchangers of the plate type.
Background technology
In electric arc furnace smelting electric-melting magnesium process, temperature when electricity melt magnesium lump is come out of the stove, surface reaches 600 DEG C ~ 800 DEG C central temperatures and reaches more than 2000 DEG C, in producing at present, the long 1.3m of about high 3.0m wide 1.0m electric-melting magnesium heat sticks together, its cooling means is by natural cooling in workshop, after several days time that approximately cools, just can carry out fragmentation work, therefore a large amount of waste heat wastes in workshop, causes environmental condition to worsen.For making full use of this waste heat, allowing it reclaim and generating electricity, both can reclaim a large amount of electric energy, can reduce again the pollution to environment, is a good thing of benefiting the nation and the people.Electricity melt magnesium lump waste heat is greatly hiding, and the temperature that the hot lump afterheat of electric-melting magnesium produces is a kind of process declined gradually from high temperature to low temperature.
Summary of the invention
A kind of efficient electric-melting magnesium lump afterheat convection current radiation Π type is the object of the present invention is to provide to straddle heat-exchangers of the plate type, stainless steel heat transfer plate composition Π type is adopted to straddle heat-exchangers of the plate type, three sections of compositions before, during and after heat exchanger divides, be interconnected between them, low-temperature vaporization liquid medium is filled with in a heat exchanger, before, during and after making, three sections of every section of heat exchanger plates are heated, liquid medium mutually evenly after clamp-on in interior fluid reservoir, all press in fluid reservoir with pushing generator work when just entering after inner storage tank produces certain pressure.
For achieving the above object, the present invention realizes by the following technical solutions:
A kind of efficient electric-melting magnesium lump afterheat convection current radiation Π type straddles heat-exchangers of the plate type, comprise and all press fluid reservoir, interior fluid reservoir, Π type straddles heat-exchangers of the plate type upper plate, Π type straddles heat-exchangers of the plate type side plate, cryogenic media passage, heat-insulation layer on tunnel cave, tunnel cave side heat-insulation layer, cold conditions cryogenic media passage sealant supplement cylinder, it is characterized in that, described interior fluid reservoir is by pipeline and cryogenic media expanding channels, cryogenic media pipeline is separately positioned on Π type and straddles heat-exchangers of the plate type side plate upper and lower, interior fluid reservoir side is arranged the outlet of interior fluid reservoir and is connected by pipeline with all pressing fluid reservoir, interior fluid reservoir and Π type straddle heat-exchangers of the plate type side plate and are connected, all press fluid reservoir to straddle heat-exchangers of the plate type side plate by pipeline and Π type to be connected, Π type straddles heat-exchangers of the plate type upper plate and straddles heat-exchangers of the plate type side plate with Π type and be connected, heat-insulation layer on tunnel cave, tunnel cave side heat-insulation layer is arranged on tunnel cave inside, cold conditions cryogenic media passage sealant supplement cylinder is by pipeline and cryogenic media expanding channels.
Described Π type straddles heat-exchangers of the plate type side plate built with low-temperature vaporization liquid medium.
Described Π type straddle heat-exchangers of the plate type side plate be divided into before, during and after three sections.
Described ground, tunnel cave place is provided with the track that transport magnesium sticks together.
Described track is provided with chassis, chassis is provided with electric-melting magnesium is high, medium and low warmly to stick together.
Described Π plate-type heat exchanger is arranged on tunnel cave internal upper part 2/3 place.
It is that waste heat mainly produces catspaw that electric-melting magnesium heat sticks together.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention is produced into that low low, long service life, heat exchanger effectiveness are high, have the feature of senior middle school's low-temperature heat quantity high efficiente callback.And volume is little, equipment is simple, reaction speed is fast, noise is low, it is flexible, lightweight to use, reliability is high, be applicable to the hot lump afterheat recovery system of large-scale electric-melting magnesium.Do not adopt water as heat transfer medium, but adopt low-temperature vaporization medium to conduct heat, overcome the problems such as the calcium ion deposition brought as heat transfer medium due to water, can practical requirement, and high efficiente callback waste heat, achieve energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is that in the present invention, fluid reservoir and Π type straddle heat-exchangers of the plate type connection side view.
In 1-, on fluid reservoir 2-bogie wheels 3-tunnel cave, in heat-insulation layer 4-cryogenic media passage 5-, fluid reservoir outlet 6-tunnel wicket 7-all presses fluid reservoir 8-Π type to straddle heat-exchangers of the plate type upper plate 9-Π type to straddle the heat-exchangers of the plate type side plate 10-electric-melting magnesium heat 11-tunnel cave side heat-insulation layer 12-chassis 13-Π type that sticks together and straddle heat-exchangers of the plate type main body 14-cold conditions cryogenic media passage sealant supplement cylinder 15-and all press fluid reservoir to export
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further illustrated:
As Fig. 1, shown in Fig. 2, a kind of efficient electric-melting magnesium lump afterheat convection current radiation Π type straddles heat-exchangers of the plate type, by interior fluid reservoir 1, bogie wheels 2, heat-insulation layer 3 on tunnel cave, cryogenic media passage 4, interior fluid reservoir outlet 5, tunnel wicket 6, all press fluid reservoir 7, Π type straddles heat-exchangers of the plate type upper plate 8, Π type straddles heat-exchangers of the plate type side plate 9, electric-melting magnesium heat sticks together 10, tunnel cave side heat-insulation layer 11, chassis 12, Π type straddles heat-exchangers of the plate type main body 13, cold conditions cryogenic media passage sealant supplement cylinder 14 and all pressure fluid reservoir outlet 15 composition, described interior fluid reservoir 1 is connected with cryogenic media passage 4 by pipeline, cryogenic media pipeline 4 and Π type straddle heat-exchangers of the plate type side plate 9 and are connected, interior fluid reservoir 1 side arranges interior fluid reservoir outlet 5, be connected by pipeline with all pressing fluid reservoir 7, interior fluid reservoir 1 and Π type straddle heat-exchangers of the plate type side plate 9 and are connected, Π type straddles heat-exchangers of the plate type upper plate 8 and straddles heat-exchangers of the plate type side plate 9 with Π type and be connected, heat-insulation layer 3 on tunnel cave, tunnel cave side heat-insulation layer 6 is arranged on tunnel cave inside, and cold conditions cryogenic media passage sealant supplement cylinder 14 is connected with cryogenic media passage 4 by pipeline, all presses HTHP vapour-liquid fluid in fluid reservoir 7 to lead to low-temperature electricity-generating unit by all pressing fluid reservoir outlet 15.
Described Π type straddles heat-exchangers of the plate type side plate 9 built with low-temperature vaporization liquid medium.
Described Π type straddle heat-exchangers of the plate type side plate 9 be divided into before, during and after three sections.
Described low-temperature vaporization liquid medium is non-water low-boiling point liquid.
Described ground, tunnel cave place is provided with the track that transport magnesium sticks together.
Described track is provided with chassis 12, chassis 12 is provided with electric-melting magnesium high, medium and low temperature electric-melting magnesium heat and sticks together 10.
Described Π plate-type heat exchanger is arranged on tunnel cave internal upper part 2/3 place.
During work, for realizing Leng Tuo and heat sticks together and can freely enter and release, adopt tunnel kiln version, high-temperature hot sticks together from Qianmen and pushes, and low temperature cold sticks together from back door and releases.
Electricity melt magnesium lump is placed on chassis 12 top, chassis 12 is pushed to the insulation of surrounding, front and back are unobstructed but be provided with openable iron thermal insulating door thermally insulated door, are equipped with track below, can make electric-melting magnesium heat, the cold maintenance tunnel kiln freed in and out that sticks together.Above maintenance tunnel kiln and both sides are provided with three layers of stainless-steel vacuum slab construction form composition saddle ride type Π type structure flat plate heat exchanger, its size conforms electric-melting magnesium heat sticks together fixed size, intermediate space is little but can not collide, with ensure heat stick together enter after can realize fast heat stick together and convection current between heat-exchangers of the plate type, radiant heat exchange.It is be placed on track chassis 12 that electric-melting magnesium heat sticks together, this chassis 12 can promote front and back, saddle ride type dull and stereotyped Π type structure heat exchanger is mounted in tunnel cave top 2/3 place of adiabatic heat-insulation, tunnel cave length is to ensure loading three electric-melting magnesium Re Tuo positions, thermal insulating door thermally insulated door is provided with before and after maintenance tunnel kiln, can opening and closing at any time.
Reclaim fast for making waste heat, adopt low temperature Quick-gasifying liquid medium as heat-conduction medium, produce certain pressure gas to enter interior fluid reservoir 1 fast, all press in fluid reservoir 7 to ensure that different electricity melt magnesium lump produces different gas pressures when different temperatures section, obtain uniform steam pressure all pressing in fluid reservoir 7, generator is steadily generated electricity.This method had both ensured electric-melting magnesium product crystalline quality, can realize again different electricity melt magnesium lump at different temperatures effective acquisition waste heat reach the object of cogeneration.
The method that heat exchanger absorbs hot lump afterheat adopts the even absorption method of segmentation waste heat, in high temperature section based on heat radiation, with the heat transfer type that convection heat transfer' heat-transfer by convection is auxiliary, in medium and low temperature section based on convection heat transfer' heat-transfer by convection, with the heat transfer type that heat radiation is auxiliary, and comparatively homeostasis pressure in equalizer tank, can be obtained, for electrical power generators, the rate of temperature fall of electricity melt magnesium lump temperature nature decrease speed and fused magnesite crystallization requirement can be realized again simultaneously.
The present invention adopts automaton to control tunnel cave, interior storage hydraulic tank, equalizer tank pressure, temperature and safety anti-explosive facility.
Claims (1)
1. an efficient electric-melting magnesium lump afterheat convection current radiation Π type straddles heat-exchangers of the plate type, it is characterized in that, comprise and all press fluid reservoir, interior fluid reservoir, Π type straddles heat-exchangers of the plate type upper plate, Π type straddles heat-exchangers of the plate type side plate, cryogenic media passage, heat-insulation layer on tunnel cave, tunnel cave side heat-insulation layer, cold conditions cryogenic media passage sealant supplement cylinder, described interior fluid reservoir is by pipeline and cryogenic media expanding channels, cryogenic media pipeline and Π type straddle heat-exchangers of the plate type side plate and are connected, cryogenic media pipeline fluid infusion mouth is arranged on cryogenic media pipeline, interior fluid reservoir side is arranged the outlet of interior fluid reservoir and is connected by pipeline with all pressing fluid reservoir, interior fluid reservoir and Π type straddle heat-exchangers of the plate type side plate and are connected, Π type straddles heat-exchangers of the plate type upper plate and straddles heat-exchangers of the plate type side plate with Π type and be connected, heat-insulation layer on tunnel cave, tunnel cave side heat-insulation layer is arranged on tunnel cave inside, cold conditions cryogenic media passage sealant supplement cylinder is by pipeline and cryogenic media expanding channels, described Π type straddles heat-exchangers of the plate type side plate built with low-temperature vaporization liquid medium, described Π type straddle heat-exchangers of the plate type side plate be divided into before, during and after three sections, described ground, tunnel cave place is provided with the track that sticks together of transport magnesium, described track is provided with chassis, chassis is provided with electric-melting magnesium is high, medium and low warmly to stick together, described Π type straddles heat-exchangers of the plate type and is arranged on tunnel cave internal upper part 2/3 place,
The course of work is: during work, and for realizing Leng Tuo and heat sticks together and can freely enter and release, adopt tunnel kiln version, high-temperature hot sticks together from Qianmen and pushes, and low temperature cold sticks together from back door and releases; Electricity melt magnesium lump is placed on chassis top, chassis is pushed to the insulation of surrounding, front and back are unobstructed but be provided with openable iron thermal insulating door thermally insulated door, are equipped with track below, can make electric-melting magnesium heat, the cold maintenance tunnel kiln freed in and out that sticks together; Above maintenance tunnel kiln and both sides are provided with three layers of stainless-steel vacuum slab construction form composition Π type and straddle heat-exchangers of the plate type; Electric-melting magnesium heat sticks together and is placed on track chassis, and this chassis can promote front and back; Π type straddles tunnel cave top 2/3 place that heat-exchangers of the plate type is arranged on adiabatic heat-insulation, and tunnel cave length, to ensure loading three electric-melting magnesium Re Tuo positions, is provided with thermal insulating door thermally insulated door before and after maintenance tunnel kiln;
Reclaim fast for making waste heat, adopt low temperature Quick-gasifying liquid medium as heat-conduction medium, produce certain pressure gas to enter interior fluid reservoir fast, all press in fluid reservoir to ensure that different electricity melt magnesium lump produces different gas pressures when different temperatures section, obtain uniform steam pressure all pressing in fluid reservoir, generator is steadily generated electricity;
The method that heat exchanger absorbs hot lump afterheat adopts the even absorption method of segmentation waste heat, in high temperature section based on heat radiation, with the heat transfer type that convection heat transfer' heat-transfer by convection is auxiliary, in medium and low temperature section based on convection heat transfer' heat-transfer by convection, with the heat transfer type that heat radiation is auxiliary, and comparatively homeostasis pressure in equalizer tank, can be obtained, for electrical power generators, the rate of temperature fall of electricity melt magnesium lump temperature nature decrease speed and fused magnesite crystallization requirement can be realized again simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410025769.9A CN103851923B (en) | 2014-01-21 | 2014-01-21 | A kind of efficient electric-melting magnesium lump afterheat convection current radiation Π type straddles heat-exchangers of the plate type |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410025769.9A CN103851923B (en) | 2014-01-21 | 2014-01-21 | A kind of efficient electric-melting magnesium lump afterheat convection current radiation Π type straddles heat-exchangers of the plate type |
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| CN103851923A CN103851923A (en) | 2014-06-11 |
| CN103851923B true CN103851923B (en) | 2016-04-06 |
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| CN105588449A (en) * | 2015-04-27 | 2016-05-18 | 南京圣诺热管有限公司 | Calcium carbide waste heat recycling method and recycling system |
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| US3940301A (en) * | 1974-08-01 | 1976-02-24 | Caterpillar Tractor Co. | Method of manufacturing an open cellular article |
| CN101870560A (en) * | 2010-06-18 | 2010-10-27 | 北京大学 | Method for recovering waste heat of electrically fused magnesium fused weight |
| CN102269526A (en) * | 2010-06-03 | 2011-12-07 | 陈耕田 | Electrically fused magnesium lump waste heat reclaiming device and method |
| CN202216564U (en) * | 2011-08-30 | 2012-05-09 | 山东华星环保集团有限公司 | Fused magnesium lump cooling and waste heat recovery device |
| CN102562199A (en) * | 2010-12-28 | 2012-07-11 | 陈耕田 | Electric-smelting-magnesium low temperature waste heat generating method |
| CN203758289U (en) * | 2014-01-21 | 2014-08-06 | 辽宁东和耐火材料集团有限公司 | Efficient fused magnesite lump waste heat convection radiation n-shaped bestriding plate heat exchanger |
-
2014
- 2014-01-21 CN CN201410025769.9A patent/CN103851923B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3940301A (en) * | 1974-08-01 | 1976-02-24 | Caterpillar Tractor Co. | Method of manufacturing an open cellular article |
| CN102269526A (en) * | 2010-06-03 | 2011-12-07 | 陈耕田 | Electrically fused magnesium lump waste heat reclaiming device and method |
| CN101870560A (en) * | 2010-06-18 | 2010-10-27 | 北京大学 | Method for recovering waste heat of electrically fused magnesium fused weight |
| CN102562199A (en) * | 2010-12-28 | 2012-07-11 | 陈耕田 | Electric-smelting-magnesium low temperature waste heat generating method |
| CN202216564U (en) * | 2011-08-30 | 2012-05-09 | 山东华星环保集团有限公司 | Fused magnesium lump cooling and waste heat recovery device |
| CN203758289U (en) * | 2014-01-21 | 2014-08-06 | 辽宁东和耐火材料集团有限公司 | Efficient fused magnesite lump waste heat convection radiation n-shaped bestriding plate heat exchanger |
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Address after: 114214, Liaoning, Haicheng Province town archway Village Patentee after: Liaoning Donghe New Material Co., Ltd. Address before: 114214, Anshan City, Liaoning province Haicheng City arch Village Patentee before: Liaoning Donghe Refractory Group Co., Ltd. |