CN113564335A - Steel strip heat treatment waste heat recovery equipment - Google Patents
Steel strip heat treatment waste heat recovery equipment Download PDFInfo
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- CN113564335A CN113564335A CN202110764100.1A CN202110764100A CN113564335A CN 113564335 A CN113564335 A CN 113564335A CN 202110764100 A CN202110764100 A CN 202110764100A CN 113564335 A CN113564335 A CN 113564335A
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- heat insulation
- heat exchanger
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 59
- 239000010959 steel Substances 0.000 title claims abstract description 59
- 238000010438 heat treatment Methods 0.000 title claims abstract description 47
- 239000002918 waste heat Substances 0.000 title claims abstract description 28
- 238000011084 recovery Methods 0.000 title claims abstract description 22
- 238000009413 insulation Methods 0.000 claims abstract description 51
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052802 copper Inorganic materials 0.000 claims abstract description 27
- 239000010949 copper Substances 0.000 claims abstract description 27
- 238000005496 tempering Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000010248 power generation Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000007669 thermal treatment Methods 0.000 claims description 2
- 238000004321 preservation Methods 0.000 abstract description 9
- 238000010791 quenching Methods 0.000 abstract description 3
- 230000000171 quenching effect Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The invention discloses a steel strip heat treatment waste heat recovery device which comprises an uncoiling wheel and a coiling wheel, wherein a heating furnace, a quenching device and a tempering furnace are sequentially arranged between the uncoiling wheel and the coiling wheel, the outer ends of the heating furnace and the tempering furnace are respectively provided with an upper heat exchanger and a lower heat exchanger, the upper heat exchanger and the lower heat exchanger are positioned on the same side and are connected through a connecting plate, the two groups of lower heat exchangers are respectively arranged on supporting tables corresponding to the same side, and the two groups of upper heat exchangers positioned on the same horizontal plane are connected with the two groups of lower heat exchangers positioned on the same horizontal plane through heat preservation pipes. According to the steel strip heat treatment waste heat recovery device, the first heat-conducting copper plate and the steel strip can be conveniently in contact adjustment, heat can be recovered and utilized, the liquid pump and the thermoelectric generation piece are arranged, power can be generated by utilizing the temperature difference between the inside and the outside of the heat insulation box, electric energy is provided for the liquid pump, the heat-conducting oil can rapidly flow, and the preheating efficiency of the steel strip is improved.
Description
Technical Field
The invention relates to the field of steel strip heat treatment equipment, in particular to steel strip heat treatment waste heat recovery equipment.
Background
Energy conservation and emission reduction are long-term strategic guidelines for economic development in China, and energy conservation is more important as a large amount of heat energy is consumed in the heat treatment of the steel strip. Meanwhile, the waste heat utilization can save energy, improve labor conditions, reduce production cost and improve the competitiveness of enterprises, and great economic benefits can be brought to the enterprises.
The waste heat of the steel strip refers to the residual heat after the steel strip is quenched and tempered, the temperature of the steel strip is still above 400 ℃ after the steel strip is quenched and tempered in the heat treatment process, the steel strip has a large amount of waste heat, the waste heat of each ton of the steel strip is about 51KWh above, and the waste heat accounts for more than one third of the total heating energy of the steel strip. After the steel strip is tempered, the steel strip is naturally cooled, and waste heat is dissipated into air, so that not only is a large amount of energy wasted, but also the production environment of a factory is deteriorated. Taking a factory for heat-treating 20000 tons of steel strips in one year as an example, more than 102 thousands KWh of electric energy is wasted in each year, so a waste heat recovery device for heat treatment of steel strips is provided to solve the problem.
Disclosure of Invention
The invention mainly aims to provide a steel strip heat treatment waste heat recovery device which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a steel band thermal treatment waste heat recovery equipment, includes that send out winding wheel and rolling wheel, be equipped with heating furnace, guenching unit and tempering furnace between sending out winding wheel and the rolling wheel in proper order, the outer end of heating furnace and tempering furnace all is equipped with heat exchanger and lower heat exchanger and is located the last heat exchanger of homonymy and connects through the connecting plate between the heat exchanger down, and is two sets of down heat exchanger installs respectively on the corresponding brace table of homonymy, is located between two sets of last heat exchangers on the same horizontal plane and is located between two sets of heat exchangers on the same horizontal plane through the heat preservation union coupling, four groups all install two sets of in valve and the outside on the insulating tube all install the drawing liquid pump on the insulating tube.
Preferably, the upper heat exchanger comprises an upper heat insulation box, two groups of U-shaped rods are symmetrically arranged at the upper end of the upper heat insulation box, the lower ends of the two groups of U-shaped rods are respectively arranged in grooves corresponding to the connecting plate in a sliding mode, the two groups of U-shaped rods are connected through a connecting rod, a first screw rod is rotatably arranged at the axis of the connecting rod, and the lower end of the first screw rod is located in an inner cavity of a first threaded pipe fixed in the inner cavity of the connecting plate and is in threaded connection with the inner cavity.
Preferably, the lower heat exchanger comprises a lower heat insulation box, four groups of limiting rods are distributed at four corners of the lower end of the lower heat insulation box, the lower ends of the four groups of limiting rods penetrate through the supporting table and are in sliding connection with the supporting table, a second threaded pipe is installed at the axis of the lower end of the lower heat insulation box, the lower end of the second threaded pipe penetrates through the supporting table, the lower end of the second threaded pipe is in threaded connection with a second screw rod, and the second screw rod is rotatably arranged on a U-shaped plate installed at the bottom of the supporting table.
Preferably, two groups of upper heat-insulating boxes positioned on the upper side and two groups of lower heat-insulating box structure boxes positioned on the lower side are provided, the side ends of the upper heat-insulating boxes are respectively provided with an oil inlet pipe and an oil outlet pipe, the oil inlet pipe and the oil outlet pipe of one group of upper heat-insulating boxes are respectively connected with the oil outlet pipe and the oil inlet pipe of the other group of upper heat-insulating boxes through heat-insulating pipes, the lower ends of the upper heat-insulating boxes and the upper ends of the lower heat-insulating boxes positioned between the coiling wheel and the heating furnace are respectively provided with a first heat-conducting copper plate, and the opposite ends of the two groups of first heat-conducting copper plates are in contact with the upper end and the lower end of the steel belt.
Preferably, the upper end of the upper heat-insulating box and the lower end of the lower heat-insulating box, which are positioned between the coiling wheel and the heating furnace, are symmetrically provided with two groups of second heat-conducting copper plates and four groups of second heat-conducting copper plates, and temperature difference power generation pieces are arranged on the end surfaces, far away from the heat-insulating box, of the second heat-conducting copper plates and are electrically connected with the liquid pump.
Preferably, first screw rod and second screw rod structure are the same, the tip of first screw rod is rotated and is equipped with the stopper just the outer wall that blocks the stopper is the symmetry and is equipped with two sets of draw bars, and is two sets of the draw bar slides and sets up in the recess that is equipped with on the inner chamber wall of first screwed pipe.
Preferably, the contact surface of the first heat-conducting copper plate and the steel strip is a smooth surface.
Preferably, the inner cavities of the two groups of upper heat-insulation boxes, the two groups of lower heat-insulation boxes and the two groups of heat-insulation pipes are all provided with heat-insulation cotton layers.
Compared with the prior art, the invention has the following beneficial effects:
1. this device is equipped with and utilizes the conduction oil as heat-conducting medium, and the accessible rotates two sets of first screws and two sets of second screws for the terminal surface contact of the first heat conduction copper that is equipped with on insulation can and the two sets of lower insulation can and the steel band, makes things convenient for the contact of first heat conduction copper and steel band to adjust, and this device can be with the heat that the steel band after the tempering furnace heating had lead on the steel band of process heating furnace assistant targets in place, preheats it, carries out recycle to the heat.
2. Be equipped with drawing liquid pump and thermoelectric generation piece, the inside and outside temperature difference of usable insulation can generates electricity and provides the electric energy for the drawing liquid pump, sends the conduction oil after will cooling down into the conduction oil of intensification fast through the drawing liquid pump, and the conduction oil of intensification carries to the conduction oil of cooling down again through another group's insulating tube in, can realize the fast flow of conduction oil, adds the thermal transmission of piece, improves the efficiency of preheating to the steel band.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a waste heat recovery device for steel strip heat treatment according to the present invention;
FIG. 2 is a schematic structural diagram of a supporting table of the waste heat recovery device for steel strip heat treatment of the present invention;
FIG. 3 is an exploded view of an upper heat exchanger and a lower heat exchanger of the waste heat recovery apparatus for steel strip heat treatment according to the present invention;
FIG. 4 is a sectional view of an incubator of a steel strip heat treatment waste heat recovery apparatus according to the present invention;
FIG. 5 is a first cross-sectional view of a threaded pipe of a waste heat recovery device for steel strip heat treatment according to the present invention.
In the figure: 1. a hair-rolling wheel; 2. a quenching device; 3. heating furnace; 4. tempering furnace; 5. a winding wheel; 6. an upper heat exchanger; 61. putting the insulation can on; 611. an oil inlet pipe; 612. an oil outlet pipe; 613. a second heat-conducting copper plate; 614. a thermoelectric power generation sheet; 615. a first heat-conductive copper plate; 62. a U-shaped rod; 63. a first screw; 631. a blocking block; 632. a slide bar; 64. a connecting rod; 65. a first threaded pipe; 7. a lower heat exchanger; 71. a lower heat preservation box; 72. a limiting rod; 73. a second threaded pipe; 74. a second screw; 75. a U-shaped plate; 8. a support table; 9. a connecting plate; 10. a valve; 11. a heat preservation pipe; 12. and (4) a liquid pump.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-5, a steel strip heat treatment waste heat recovery device, including an uncoiling wheel 1 and a coiling wheel 5, a heating furnace 3, a quenching device 2 and a tempering furnace 4 are sequentially arranged between the uncoiling wheel 1 and the coiling wheel 5, the outer ends of the heating furnace 3 and the tempering furnace 4 are respectively provided with an upper heat exchanger 6 and a lower heat exchanger 7, and the upper heat exchanger 6 and the lower heat exchanger 7 which are positioned on the same side are connected through a connecting plate 9, the two groups of lower heat exchangers 7 are respectively arranged on supporting tables 8 corresponding to the same side, the two groups of upper heat exchangers 6 positioned on the same horizontal plane are connected through heat-insulating pipes 11, the four groups of heat-insulating pipes 11 are respectively provided with valves 10, and the two groups of heat-insulating pipes 11 on the outer side are respectively provided with a liquid-pumping pump 12.
Go up heat exchanger 6 and include insulation can 61, the upper end of going up insulation can 61 is that the symmetry installs two sets of U type poles 62 and the lower extreme of two sets of U type poles 62 slides respectively and sets up in being located the corresponding recess of connecting plate 9, two sets of U type poles 62 pass through connecting rod 64 and connect, the axle center department of connecting rod 64 rotates and is equipped with first screw rod 63 and the lower extreme of first screw rod 63 is located the inner chamber of fixing the first screwed pipe 65 in the inner chamber of connecting plate 9 and rather than threaded connection, the accessible rotates first screw rod 63 and makes two sets of U type poles 62 drive insulation can 61 and carry out linear motion, so that the first heat conduction copper 615 that is equipped with on the insulation can carry out heat-conduction with the steel band end face contact.
The lower heat exchanger 7 comprises a lower heat insulation box 71, four groups of limiting rods 72 are distributed at four corners of the lower end of the lower heat insulation box 71, the lower ends of the four groups of limiting rods 72 all penetrate through the support table 8 and are in sliding connection with the support table, a second threaded pipe 73 is installed at the axis of the lower end of the lower heat insulation box 71, the lower end of the second threaded pipe 73 penetrates through the support table 8, the lower end of the second threaded pipe 73 is in threaded connection with a second screw 74, the second screw 74 is rotatably arranged on a U-shaped plate 75 installed at the bottom of the support table 8, and the lower heat insulation box 71 can make linear motion by rotating the second screw 74, so that the end face of a first heat conduction copper plate 615 steel strip arranged at the upper end of the lower heat insulation box is in contact with the end face of the first heat conduction copper plate to conduct heat.
The two groups of upper heat-insulating boxes 61 positioned on the upper side and the two groups of lower heat-insulating boxes 71 positioned on the lower side are structured boxes, oil inlet pipes 611 and oil outlet pipes 612 are respectively arranged at the side ends of the upper heat-insulating boxes 61, the oil inlet pipes 611 and the oil outlet pipes 612 of the one group of upper heat-insulating boxes 61 are respectively connected with the oil outlet pipes 612 and the oil inlet pipes 611 of the opposite side upper heat-insulating boxes 61 through heat-insulating pipes 11, first heat-conducting copper plates 615 are respectively arranged at the lower ends of the upper heat-insulating boxes 61 and the upper ends of the lower heat-insulating boxes 71 positioned between the coiling wheel 1 and the heating furnace 3, and the opposite ends of the two groups of first heat-conducting copper plates 615 are in contact with the upper ends and the lower ends of the steel strips.
The upper end of the upper heat-insulating box 61 and the lower end of the lower heat-insulating box 71 which are positioned between the coiling wheel 1 and the heating furnace 3 are symmetrically provided with two groups of second heat-conducting copper plates 613, the end faces, away from the heat-insulating boxes, of the four groups of second heat-conducting copper plates 613 are provided with thermoelectric generation sheets 614, the thermoelectric generation sheets 614 are electrically connected with the liquid-pumping pump 12, the electric energy can be provided for the liquid-pumping pump through the thermoelectric generation sheets 614, heat-conducting oil in the upper heat-insulating box or the lower heat-insulating box for heating the steel strip is conveyed to the upper heat-insulating box or the lower heat-insulating box for heating the heat-conducting oil, the flow of the heat-conducting oil can be promoted, the heat transfer of the heating block is realized, and the preheating efficiency of the steel strip is improved.
The first screw 63 and the second screw 74 have the same structure, the end of the first screw 63 is provided with a stopper 631 in a rotating manner, the outer wall of the stopper 631 is symmetrically provided with two sets of sliding bars 632, and the two sets of sliding bars 632 are slidably arranged in grooves formed in the inner cavity wall of the first threaded pipe 65, so that the first screw 63 and the second screw 74 can be prevented from being screwed out of the threaded pipe due to excessive rotation.
The contact surface of the first heat-conducting copper plate 615 and the steel strip is set to be a smooth surface, so that the friction force between the first heat-conducting copper plate 615 and the steel strip can be reduced, scratches on the steel strip can be avoided, and the attractiveness is affected.
The inner cavities of the two groups of upper heat-preservation boxes 61, the two groups of lower heat-preservation boxes 71 and the two groups of heat-preservation pipes 11 are all provided with heat-preservation cotton layers, so that the heat-preservation effect is achieved, and the heat loss is avoided.
It should be noted that, when in use, the upper insulation can 61 and the lower insulation can 71 between the tempering furnace 4 and the winding wheel 5 are filled with heat conducting oil (four groups of valves are all in closed state), two groups of first screws 63 and two groups of second screws 74 are respectively rotated to make the first heat conducting copper plates 615 arranged on the two groups of upper insulation can 61 and the two groups of lower insulation can 71 contact with the end surface of the steel strip, the heat conducting oil in the insulation can is heated by the steel strip coming out of the tempering furnace, when the steel strip is heated to a certain temperature (not lower than 70 ℃), the valves of the four groups of insulation tubes 11 are opened to make the heated heat conducting oil enter the upper insulation tube 61 and the lower insulation tube 71 between the coiling wheel 1 and the heating furnace 3 through the insulation tubes 11, and then oil is continuously injected into the upper insulation can and the lower insulation can where oil injection is started (oil is slowly injected), finally, the horizontal planes of the oil levels in the two groups of upper heat-insulating boxes 61 and the two groups of lower heat-insulating boxes 71 are located above the heat-insulating pipes 11, the first heat-conducting copper plate 615 located between the winding wheel 1 and the heating furnace 3 transfers the heat of the heat-conducting oil to the steel strip, and the thermoelectric generation sheet 614 generates electric energy due to temperature difference at two ends and can provide electric energy for the liquid-pumping pump 12, so that the cooled heat-conducting oil is quickly sent into the heated heat-conducting oil, and the heated heat-conducting oil is conveyed into the cooled heat-conducting oil through the other group of heat-insulating pipes, so that the quick flow of the heat-conducting oil can be realized, the heat transfer of the heating blocks is realized, and the preheating efficiency of the steel strip is improved.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a steel band thermal treatment waste heat recovery equipment, includes that send out winding wheel (1) and rolling wheel (5), send out winding wheel (1) and rolling wheel (5) between be equipped with heating furnace (3), guenching unit (2) and tempering furnace (4) in proper order, its characterized in that: the outer end of heating furnace (3) and tempering furnace (4) all is provided with from top to bottom heat exchanger (6) and heat exchanger (7) down and is located last heat exchanger (6) of homonymy and connects through connecting plate (9) between heat exchanger (7) down, and is two sets of heat exchanger (7) are installed respectively on the corresponding brace table (8) of homonymy down, are located between two sets of last heat exchanger (6) on the same horizontal plane and are located and connect through insulating tube (11) between two sets of heat exchanger (7) on the same horizontal plane, four sets of all install valve (10) and outside on insulating tube (11) two sets of liquid suction pump (12) all are installed on insulating tube (11).
2. The steel strip heat treatment waste heat recovery device of claim 1, characterized in that: the upper heat exchanger (6) comprises an upper heat insulation box (61), two groups of U-shaped rods (62) are symmetrically arranged at the upper end of the upper heat insulation box (61), the lower ends of the two groups of U-shaped rods (62) are respectively arranged in grooves corresponding to the connecting plate (9) in a sliding mode, the two groups of U-shaped rods (62) are connected through connecting rods (64), a first screw rod (63) is rotatably arranged at the axis of each connecting rod (64), and the lower end of the first screw rod (63) is located in an inner cavity of a first threaded pipe (65) fixed in the inner cavity of the connecting plate (9) and is in threaded connection with the inner cavity.
3. The steel strip heat treatment waste heat recovery device of claim 1, characterized in that: the lower heat exchanger (7) comprises a lower heat insulation box (71), four groups of limiting rods (72) are distributed at four corners of the lower end of the lower heat insulation box (71), the lower ends of the four groups of limiting rods (72) penetrate through the supporting platform (8) and are in sliding connection with the supporting platform, a second threaded pipe (73) is installed at the axis of the lower end of the lower heat insulation box (71), the lower end of the second threaded pipe (73) penetrates through the supporting platform (8), the lower end of the second threaded pipe (73) is in threaded connection with a second screw (74), and the second screw (74) is rotatably arranged on a U-shaped plate (75) installed at the bottom of the supporting platform (8).
4. The steel strip heat treatment waste heat recovery device of claim 3, characterized in that: the steel belt coiling device comprises two groups of upper heat insulation boxes (61) positioned on the upper side and two groups of lower heat insulation boxes (71) positioned on the lower side, wherein oil inlet pipes (611) and oil outlet pipes (612) are arranged at the side ends of the upper heat insulation boxes (61), the oil inlet pipes (611) and the oil outlet pipes (612) of the upper heat insulation boxes (61) are connected with the oil outlet pipes (612) and the oil inlet pipes (611) of the upper heat insulation boxes (61) on the opposite sides through heat insulation pipes (11), first heat conduction copper plates (615) are arranged at the lower ends of the upper heat insulation boxes (61) and the upper ends of the lower heat insulation boxes (71) between a coiling wheel (1) and a heating furnace (3), and the opposite ends of the two groups of first heat conduction copper plates (615) are in contact with the upper end and the lower end of a steel belt.
5. The steel strip heat treatment waste heat recovery device of claim 3, characterized in that: the upper end of an upper heat-insulating box (61) and the lower end of a lower heat-insulating box (71) which are positioned between a coiling wheel (1) and a heating furnace (3) are symmetrically provided with two groups of second heat-conducting copper plates (613) and four groups, temperature difference power generation pieces (614) are installed on the end faces, far away from the heat-insulating boxes, of the second heat-conducting copper plates (613), and the temperature difference power generation pieces (614) are electrically connected with a liquid pumping pump (12).
6. The steel strip heat treatment waste heat recovery device of claim 4, characterized in that: first screw rod (63) and second screw rod (74) structure are the same, the tip of first screw rod (63) is rotated and is equipped with and blocks piece (631) just the outer wall that blocks piece (631) is the symmetry and is equipped with two sets of draw runner (632), and is two sets of draw runner (632) slide and set up in the recess that is equipped with on the inner chamber wall of first screwed pipe (65).
7. The steel strip heat treatment waste heat recovery device of claim 1, characterized in that: the contact surface of the first heat-conducting copper plate (615) and the steel strip is set to be a smooth surface.
8. The steel strip heat treatment waste heat recovery device of claim 1, characterized in that: the inner cavities of the two groups of upper heat insulation boxes (61), the two groups of lower heat insulation boxes (71) and the two groups of heat insulation pipes (11) are all provided with heat insulation cotton layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110764100.1A CN113564335A (en) | 2021-07-06 | 2021-07-06 | Steel strip heat treatment waste heat recovery equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110764100.1A CN113564335A (en) | 2021-07-06 | 2021-07-06 | Steel strip heat treatment waste heat recovery equipment |
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| CN113564335A true CN113564335A (en) | 2021-10-29 |
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| CN202110764100.1A Pending CN113564335A (en) | 2021-07-06 | 2021-07-06 | Steel strip heat treatment waste heat recovery equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115141925A (en) * | 2022-09-01 | 2022-10-04 | 江苏东方九天新能源材料有限公司 | Cold-rolled steel strip heat treatment waste heat recovery equipment and method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102517434A (en) * | 2012-01-12 | 2012-06-27 | 浙江佰耐钢带有限公司 | Device for recovering waste heat in heat treatment tempering process of steel strip |
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| CN102560073A (en) * | 2012-02-08 | 2012-07-11 | 浙江佰耐钢带有限公司 | Steel band heat treatment tempering waste heat recovery device through using heat conduction oil as heat transfer medium |
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| CN115141925A (en) * | 2022-09-01 | 2022-10-04 | 江苏东方九天新能源材料有限公司 | Cold-rolled steel strip heat treatment waste heat recovery equipment and method thereof |
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