CN207621979U - A kind of electric-melting magnesium is dry to put out heat exchange tower smoke and waste steam boiler - Google Patents

A kind of electric-melting magnesium is dry to put out heat exchange tower smoke and waste steam boiler Download PDF

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CN207621979U
CN207621979U CN201721420455.4U CN201721420455U CN207621979U CN 207621979 U CN207621979 U CN 207621979U CN 201721420455 U CN201721420455 U CN 201721420455U CN 207621979 U CN207621979 U CN 207621979U
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heat
flue
frame
electric
dry
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CN201721420455.4U
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刘祥斌
林仟国
程立春
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East Jiangsu Nine Heavy Industry Ltd Cos
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East Jiangsu Nine Heavy Industry Ltd Cos
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

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Abstract

Heat exchange tower smoke and waste steam boiler, including flue and modular heat-transfer area bobbin carriage are put out the utility model discloses a kind of electric-melting magnesium is dry;Flue is straight-through shape structure, and flue top is equipped with flue gas input port, and bottom end is equipped with flue gas delivery outlet;In flue steam superheater, evaporator and economizer are equipped with successively from top to bottom along flue gas flow direction;Side above flue is equipped with drum, and drum is connect with steam superheater, evaporator and economizer respectively by piping, and evaporator establishes carbonated drink natural convection loop by tedge, down-comer and drum;Modular heat-transfer area bobbin carriage includes heat-exchange tube group and shell heat preservation frame, and the horizontal shell that is mounted on of conduit saddle that heat-exchange tube group keeps the temperature frame both ends by shell is kept the temperature in frame, and shell heat preservation frame is connected with flue inner wall face.Present application addresses electric-melting magnesium production industry dry the problem of putting out the waste of heat exchange tower smoke heat energy, and can generate the required superheated steam of heat distribution pipe network, to energy-saving and environmental protection, reduce manufacturing cost.

Description

A kind of electric-melting magnesium is dry to put out heat exchange tower smoke and waste steam boiler
Technical field
The utility model is related to a kind of waste heat boiler, especially a kind of electric-melting magnesium is dry to put out heat exchange tower smoke and waste steam boiler.
Background technology
Fused magnesite crystallization is big, fine and close, is that production steelmaking converter, electric furnace and refining ladle slag line magnesia carbon brick are undesirable The best body material in generation, wherein low Fe2O3Big crystallization fused magnesite be good fill insulant in electric elements again. In electric-melting magnesium production process, the high temperature magnesium after melting sticks together and is first cooled to periclase crystal structure temperature, and crystallization, which finishes, sticks together magnesium powder Feeding is dry after broken puts out heat exchange tower and air heat-exchange, and the dry flue gas part for putting out heat exchange tower discharge is former for preheating magnesium mine Beginning material, another part are then vented.
The dry heat exchange tower flue-gas temperature of putting out of electric-melting magnesium is distributed in 300~400 DEG C, many thermal energy is still contained in flue gas, if not It is recycled and is directly discharged into air, not only wasted the valuable energy, but also seriously polluted atmospheric environment.Therefore, it develops The dry waste heat boiler for putting out heat exchange tower smoke heat energy recycling demand of above-mentioned electric-melting magnesium is adapted to, current electric-melting magnesium production industry is come It is imperative to say.
Utility model content
The technical problems to be solved in the utility model is that in view of the above shortcomings of the prior art, and it is dry to provide a kind of electric-melting magnesium Heat exchange tower smoke and waste steam boiler is put out, the electric-melting magnesium is dry to be put out heat exchange tower smoke and waste steam boiler to solve electric-melting magnesium production industry dry The problem of putting out the waste of heat exchange tower smoke heat energy, and the required superheated steam of heat distribution pipe network can be generated, thus energy-saving and environmental protection, Reduce manufacturing cost.
In order to solve the above technical problems, the technical solution adopted in the utility model is:
A kind of electric-melting magnesium is dry to put out heat exchange tower smoke and waste steam boiler, including flue and modular heat-transfer area bobbin carriage.
Flue is straight-through shape structure, and flue top is equipped with flue gas input port, and bottom end is equipped with flue gas delivery outlet, flue gas delivery outlet Bottom surface be equipped with ash-discharging device;In flue steam superheater, evaporator and economizer are equipped with successively from top to bottom along flue gas flow direction; It is modular heat-transfer area bobbin carriage that steam superheater, evaporator and economizer, which are located at flue inside points,.
Side above flue is equipped with drum, and drum is connected with steam superheater, evaporator and economizer respectively by piping It connects, evaporator establishes carbonated drink natural convection loop by tedge, down-comer and drum.
Modular heat-transfer area bobbin carriage includes heat-exchange tube group and shell heat preservation frame, and heat-exchange tube group keeps the temperature frame by shell The conduit saddle at frame both ends is horizontal to be mounted in shell heat preservation frame, and shell heat preservation frame is connected with flue inner wall face.
It includes frame, inner casing, outer casing and thermal insulation material that shell, which keeps the temperature frame, and inner casing is arranged in frame side, outside Backplate is arranged on the outside of frame, and filled thermal insulation materials are between inner casing and outer casing.
Heat-exchange tube group includes several heat-exchange tube bundles being arranged in in-line or stagger arrangement.
Heat-exchange tube bundle is snakelike light pipe or membrane tube.
With the above structure, dry flue gas of the flue gas through flue for putting out heat exchange tower generation of electric-melting magnesium inputs the utility model The flue for mouthful entering waste heat boiler, followed by the modular heat-transfer area bobbin carriage in steam superheater, evaporator and economizer, compared with After the flue gas of high-temperature completes heat exchange cooling by waste heat boiler, foldback returns that electric-melting magnesium is dry puts out hot friendship after circulating fan aspirates It changes tower and participates in flue gas heat exchange circulation next time.Waste heat boiler water supply enters drum after economizer heats, produced by evaporator Steam water interface pass through tedge, down-comer and drum and constitute carbonated drink natural convection loop, the saturated vapor generated in drum Superheated steam is generated after steam superheater further heats, is sent to heat distribution pipe network.
Electric-melting magnesium is dry to put out heat exchange tower flue gas heat to the utility model for recycling, pass through waste heat boiler setting realize it is secondary Superheated steam is produced, the operation cost of electric-melting magnesium manufacturing enterprise is reduced.The electric-melting magnesium of the utility model is dry to put out heat exchange tower flue gas Electric-melting magnesium is dry to put out heat exchange tower flue gas heat to waste heat boiler for recycling, and is realized while stability and high efficiency recovered flue gas heat To the long-effective protection of environment, clean manufacturing and the benign development of electric-melting magnesium industry are promoted, sustainable development war is realized to pushing Slightly be of great practical significance.
Description of the drawings
Fig. 1 shows a kind of dry structural schematic diagram for putting out heat exchange tower smoke and waste steam boiler of electric-melting magnesium of the utility model.
Fig. 2 shows the cross-sectional view of modular heat-transfer area bobbin carriage.
Wherein have:1. flue;2. modular heat-transfer area bobbin carriage;3. flue gas input port;4. flue gas delivery outlet;5. unloading grey dress It sets;6. steam superheater;7. evaporator;8. economizer;9. drum;10. piping;11. tedge;12. down-comer;13. heat is handed over Pipe group is changed, 14. shells keep the temperature frame, 15. conduit saddles, 16. inner casings, 17. frames, 18. outer casings, 19. thermal insulation materials, 20. heat Exchange tube bank.
Specific implementation mode
The utility model is described in further detail with specific better embodiment below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, a kind of electric-melting magnesium is dry puts out heat exchange tower smoke and waste steam boiler, including flue 1 and modular pass Hot facial canal case 2.
Flue is straight-through shape structure, and flue top is equipped with flue gas input port 3, and bottom end is equipped with flue gas delivery outlet 4, flue gas output The bottom surface of mouth is equipped with ash-discharging device 5.
In flue steam superheater 6, evaporator 7 and economizer 8 are equipped with successively from top to bottom along flue gas flow direction;Steam superheating It is modular heat-transfer area bobbin carriage that device, evaporator and economizer, which are located at flue inside points,.
Side above flue is equipped with drum 9, drum by piping 10 respectively with steam superheater, evaporator and economizer Connection, evaporator establish carbonated drink natural convection loop by tedge, down-comer and drum.
As shown in Fig. 2, modular heat-transfer area bobbin carriage includes heat-exchange tube group 13 and shell heat preservation frame 14, heat-exchange tube group The horizontal shell that is mounted on of conduit saddle 15 that frame both ends are kept the temperature by shell is kept the temperature in frame, and shell keeps the temperature frame and flue inner wall face It is connected.
Shell heat preservation frame includes frame 17, inner casing 16, outer casing 18 and thermal insulation material 19, and inner casing is arranged in frame Inside, outer casing are arranged on the outside of frame, and filled thermal insulation materials are between inner casing and outer casing.
Above-mentioned heat-exchange tube group includes several heat-exchange tube bundles 20 being arranged in in-line or stagger arrangement, and heat-exchange tube bundle is preferably Snakelike light pipe or membrane tube etc..
Flue gas flow:The dry flue gas for putting out heat exchange tower generation of electric-melting magnesium enters the flue of waste heat boiler through flue gas input port, Followed by steam superheater 6, evaporator 7 and economizer 8, the dust in flue gas is discharged out of the furnace by ash-discharging device 8, higher temperatures After the flue gas of degree completes heat exchange cooling by waste heat boiler, foldback Hui Gan is put out under heat exchange tower participation after circulating fan aspirates Flue gas heat exchange circulation.
Carbonated drink flow:Waste heat boiler water supply enters drum 9 after the heating of economizer 8, steam-water mixing caused by evaporator 7 Object constitutes carbonated drink natural convection loop by tedge 11, down-comer 12 and drum 9, and the saturated vapor generated in drum 9 is through steaming Vapour superheater 6 generates superheated steam after further heating(Or main steam), it is sent to heat distribution pipe network, for producing and using.
Preferred embodiments of the present invention described in detail above, still, the utility model are not limited to above-mentioned reality Apply the detail in mode, in the range of the technology design of the utility model, can to the technical solution of the utility model into The a variety of equivalents of row, these equivalents belong to the scope of protection of the utility model.

Claims (4)

1. a kind of electric-melting magnesium is dry to put out heat exchange tower smoke and waste steam boiler, it is characterised in that:Including flue and modular heat transfer facial canal Case;
Flue is straight-through shape structure, and flue top is equipped with flue gas input port, and bottom end is equipped with flue gas delivery outlet, the bottom of flue gas delivery outlet Face is equipped with ash-discharging device;In flue steam superheater, evaporator and economizer are equipped with successively from top to bottom along flue gas flow direction;Steam It is modular heat-transfer area bobbin carriage that superheater, evaporator and economizer, which are located at flue inside points,;
Side above flue is equipped with drum, and drum is connect with steam superheater, evaporator and economizer respectively by piping, steams Hair device establishes carbonated drink natural convection loop by tedge, down-comer and drum;
Modular heat-transfer area bobbin carriage includes heat-exchange tube group and shell heat preservation frame, and heat-exchange tube group keeps the temperature frame two by shell The conduit saddle at end is horizontal to be mounted in shell heat preservation frame, and shell heat preservation frame is connected with flue inner wall face.
2. electric-melting magnesium according to claim 1 is dry to put out heat exchange tower smoke and waste steam boiler, it is characterised in that:Shell keeps the temperature frame Frame includes frame, inner casing, outer casing and thermal insulation material, and inner casing is arranged in frame side, and outer casing is arranged on the outside of frame, Filled thermal insulation materials are between inner casing and outer casing.
3. electric-melting magnesium according to claim 1 is dry to put out heat exchange tower smoke and waste steam boiler, it is characterised in that:Heat-exchange tube group Including several heat-exchange tube bundles being arranged in in-line or stagger arrangement.
4. electric-melting magnesium according to claim 3 is dry to put out heat exchange tower smoke and waste steam boiler, it is characterised in that:Heat-exchange tube bundle For snakelike light pipe or membrane tube.
CN201721420455.4U 2017-10-31 2017-10-31 A kind of electric-melting magnesium is dry to put out heat exchange tower smoke and waste steam boiler Active CN207621979U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721420455.4U CN207621979U (en) 2017-10-31 2017-10-31 A kind of electric-melting magnesium is dry to put out heat exchange tower smoke and waste steam boiler

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Application Number Priority Date Filing Date Title
CN201721420455.4U CN207621979U (en) 2017-10-31 2017-10-31 A kind of electric-melting magnesium is dry to put out heat exchange tower smoke and waste steam boiler

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114317988A (en) * 2021-12-23 2022-04-12 太原嘉能动力科技有限公司 A device and method for sensible heat recovery of magnesium slag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114317988A (en) * 2021-12-23 2022-04-12 太原嘉能动力科技有限公司 A device and method for sensible heat recovery of magnesium slag

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