KR20150053270A - Manufacturing facility line and thermoelectric power generation method - Google Patents

Abstract

According to the present invention, there is provided a thermoelectric power generation unit and a thermoelectric generator having moving means for performing integral movement of the thermoelectric power generation unit in a facility line, By arranging the heat source face to face with the heat source, it is possible to efficiently recover heat energy of the heat source whose emission state is varied in the heat of the manufacturing facility in which the heat source moves, Can be obtained.

Description

TECHNICAL FIELD [0001] The present invention relates to a manufacturing facility thermal and thermoelectric power generation method,

The present invention relates to a facility line of a steelworks having a moving heat source and a slab, a rough bar and a steel strip in a hot rolling process, And a thermoelectric power generating method using the same. 2. Description of the Related Art

Further, the present invention is characterized in that the above-mentioned manufacturing facility heat is a continuous casting facility having a thermoelectric generator for converting thermal energy by radiating the hot slab in the continuous casting process into electrical energy and recovering it, ≪ / RTI >

Further, the present invention is characterized in that the above-mentioned production facility heat is subjected to casting and rolling with a thermoelectric generator for converting the thermal energy of the hot slab or hot-rolled sheet into electric energy and recovering it in the steel sheet manufacturing process for continuously casting and rolling And a method of thermoelectric power generation using the same.

In addition, the present invention is characterized in that the manufacturing facility heat exchanger is provided with a single pipe facility having a thermoelectric generator for converting heat energy generated by radiating steel plates and pipes into electric energy in the process of manufacturing a forge welded pipe, And to a thermoelectric power generation method using the same.

It has long been known as a Seebeck effect that an electromotive force is generated between a high temperature part and a low temperature part when a temperature difference is given to a different type of conductor or semiconductor, It is also known to convert heat directly into electric power using a power generation element.

In recent years, in manufacturing facilities such as steel mills, energy generated as waste heat by power generation using the above-described thermoelectric power generation elements, for example, slabs, bar bars, hot-rolled strips, hot slabs, steel plates, And coping with the use of thermal energy by radiating the steel of the steel pipe is being promoted.

As a method of using heat energy, for example, Patent Document 1 discloses a method in which a heat receiving device is placed face to face with a hot object, heat energy of the hot object is converted into electric energy, .

Patent Document 2 discloses a method in which a thermoelectric module is brought into contact with thermal energy being treated as waste heat to convert it into electrical energy and recover it.

Patent Document 3 discloses a method of recovering the amount of heat dissipated in the air from the cooling material in the cooling floor as electric power.

Patent Document 4 describes a heat recovery method and a cooling floor which can efficiently convert thermal energy of a high-temperature material into electrical energy by thermal conduction of rake.

Patent Document 5 describes a heat recovery apparatus for recovering heat generated by a treatment of a metal material in a hot rolling line and storing the recovered heat as electric power.

Japanese Patent Application Laid-Open No. 59-198883 Japanese Patent Application Laid-Open No. 60-34084 Japanese Unexamined Patent Publication No. 10-296319 Japanese Patent Application Laid-Open No. 2006-263783 Japanese Laid-Open Patent Publication No. 2011-62727

However, in Patent Document 1, there is a description of a slab continuous casting line that can be applied to a slab, but it is also possible to change the temperature of the slab in the actual operation, the amount of heat released due to the variation of the slab amount ) Of the heat source temperature due to the fluctuation of the operating conditions.

In addition, in Patent Document 2, since the module needs to be fixed to a heat source, there is a problem that the technique can not be applied to a moving heat source such as a hot rolling facility.

Patent Document 3 discloses that the material temperature of the middle and high temperature portions is 300 占 폚 or more and uses the convection heat after cooling the material and the radiant heat. However, the temperature change of the high- (Heat energy) due to the variation of the heat source temperature due to the fluctuation of the heat source temperature.

The technology described in Patent Document 4 is specialized only by heat recovery by heat conduction and is a heat source which is generated by fluctuation of operating conditions such as a temperature change of a high temperature material in a working operation and a variation of a heat release amount The change in temperature is not considered.

The technique described in Patent Document 5 is not necessarily required for the practical operation, and the power storage means described in the same document is not necessarily required.

In addition, in the conventional thermoelectric power generation method, in order to prevent breakage of the apparatus due to height fluctuation of the steel sheet in an abnormal state in which the leading or trailing ends of the steel become heat sources, the thermoelectric generator can be installed only at a remote place There was no. In addition, when it is installed at a remote location of the steel material, thermal energy of the high-temperature object is not properly transferred to the thermoelectric generator, and conversion into electric energy can not be efficiently performed.

The present invention has been developed in consideration of the above-described phenomenon, and it is an object of the present invention to provide a hot rolling mill, a continuous casting facility, a steel sheet manufacturing facility for casting and rolling, Hot rolling equipment heat with a thermoelectric generator capable of efficiently recovering and recovering thermal energy of slab, bar, hot-rolled steel, hot-rolled steel, steel plate, and pipe material efficiently changing into electric energy, heat of continuous casting equipment, It is another object of the present invention to provide a steel plate manufacturing facility line for rolling and a single pipe line heat together with a thermoelectric power generation method using them.

As a result of intensive studies to solve the above-described problems, the inventors of the present invention have recognized that the thermoelectric power generation can be performed with high efficiency by adjusting the installation position such as the distance between the heat source and the thermoelectric power generating unit, The hot rolling equipment heat with the thermoelectric generator capable of using heat in a new steel mill, the continuous casting equipment heat, the steel sheet manufacturing facility heat and the single heat pipe heat heat for the casting and rolling together with the thermoelectric power generation method using them were developed .

The present invention is based on the above recognition.

That is, the structure of the present invention is as follows.

1. In a manufacturing facility column of a steelworks having a moving heat source,

Wherein the manufacturing equipment column includes a thermoelectric generator unit and a thermoelectric generator unit having moving means for moving the thermoelectric generator unit in unison, and the thermoelectric generator unit is arranged to face the heat source.

2. The method of manufacturing a hot rolling mill according to claim 1, wherein the manufacturing equipment row comprises a rougher for rough-rolling a heated slab into a rough bar and a hot rolling equipment column having a finishing mill for finishing the hot- as,

The thermoelectric generator is disposed at any position of the slab conveying route, the rough rolling mill, the roughing bar conveying route, the finish rolling mill, and the hot-rolled steel strip conveying route from the front of the roughing mill to the hot rolling steel bed conveying route, The manufacturing facility column as recited in 1 above, wherein at least one of the slab, the joining bar, and the hot-rolled steel strip is disposed to face.

3. The manufacturing facility array as described in 2 above, wherein the thermoelectric generator further comprises a movement judging means for judging, based on the output of the thermoelectric generator unit, the operation ratio of the thermoelectric generator unit.

4. The manufacturing facility column according to 2 or 3 above, wherein the thermoelectric generator unit is installed according to the temperature of at least one of the slab, the rough bar, and the hot-rolled steel strip and / or the output of the thermoelectric generator unit.

5. The manufacturing facility according to any one of 2 to 4 above, wherein the thermoelectric power generating unit is installed close to the high temperature part in the low temperature part in accordance with the temperature of at least one of the slab, the bar and the hot rolled steel strip and / Ten.

6. The thermoelectric power generation module according to any one of the above 2 to 5, wherein the thermoelectric module in the thermoelectric power generating unit is arranged densely with respect to the low temperature part in accordance with the temperature of at least one of the slab, the bar and the hot- 5 < / RTI >

7. The method according to any one of the preceding claims, wherein the moving means is adapted to move at least one of the thermoelectric generating unit and the slab, the joining bar, and / or the heat generating unit in accordance with the temperature and / or the output obtained by measuring the temperature of at least one of the slab, A manufacturing facility column as described in any one of 2 to 6 above, wherein the distance to at least one of the hot-rolled steel strips is controlled.

8. The manufacturing equipment column according to any of the above 2 to 7, wherein the thermoelectric generator further comprises a heat reflecting material.

9. The manufacturing facility column as described in any of 2 to 8 above, wherein the thermoelectric generator has a shape surrounding at least one of the slab, the bar, and the hot-rolled steel strip.

10. The thermoelectric generator according to any one of 2 to 9 above, wherein at least one opening is formed.

11. A method of thermoelectric generation in which at least one heat of a slab, a joining bar, and a hot-rolled steel strip is heat-treated using the manufacturing facility heat described in any one of 2 to 10 above to conduct thermoelectric power generation.

12. The thermoelectric generator according to 11 above, wherein the operation of the thermoelectric generator unit is controlled by using the operation judging means of the above-mentioned manufacturing equipment column.

13. A continuous casting facility column for continuously casting a hot slab having a slab cooling device and a slab cutting device,

The thermoelectric generator is disposed at any position of the slab cutting device from the exit side of the slab cooling device upstream of the slab cutting device, the lower surface of the slab cutting device, and the slab cutting device exit, The manufacturing facility column described in 1 above.

14. The manufacturing facility column as set forth in 13 above, wherein the thermoelectric generator further comprises a movement judging means for judging, based on the output of the thermoelectric generator, the operation ratio of the thermoelectric generator unit.

15. The manufacturing facility column according to 13 or 14, wherein the thermoelectric generator unit is installed according to the temperature of the hot slab and / or the output of the thermoelectric generator unit.

16. The manufacturing facility heat as described in any one of 13 to 15 above, wherein the thermoelectric power generating unit is installed close to the high temperature portion at a low temperature portion in accordance with the temperature distribution in the width direction of the hot slab.

17. The manufacturing facility heat described in any one of 13 to 16 above, wherein the thermoelectric module in the thermoelectric power generating unit is densely arranged with respect to the low temperature portion in accordance with the temperature distribution in the width direction of the hot slab.

18. The apparatus according to any one of the above 13 to 17, wherein the moving means controls the distance between the thermoelectric generating unit and the hot slab in accordance with the temperature and / or the output obtained by measuring the temperature of the hot slab and / ≪ / RTI >

19. The manufacturing equipment heat described in any one of 13 to 18 above, wherein the thermoelectric generator further comprises a heat reflecting material.

20. The fabrication facility heat described in any one of 13 to 19 above, wherein the thermoelectric generator is shaped to surround the outer periphery of the hot slab.

21. The continuous casting equipment heat described in any one of 13 to 20 above, wherein the thermoelectric generator is provided with at least one opening.

22. A thermoelectric generating method for thermoelectric generation by heat-receiving heat of a hot slab using the heat of the manufacturing facility described in any one of 13 to 21 above.

23. The slab cutting apparatus according to any one of claims 1 to 3, wherein the conveying speed of the hot slab, which is opposed to the thermoelectric generator, is set to a speed of 1.1 times or more of the continuous casting speed and the continuous casting speed 22. The thermoelectric generator according to 22 above.

24. The thermoelectric generator according to 22 or 23 above, wherein the operation of the thermoelectric generator unit is controlled by using the operation judging means of the above-mentioned manufacturing equipment column.

25. A steel sheet manufacturing facility column for casting and rolling comprising the slab casting machine and the rolling line,

The thermoelectric generator is provided in a slab cooling apparatus and a slab cutting apparatus of a slab casting machine in a slab cooling apparatus output side, a slab cutting apparatus output and slab cutting apparatus output side, and a holding furnace of the rolling line, In the front of the induction furnace, in front of the induction furnace, in front of the rolling mill, behind the rolling mill, on the roller table and on the roller table, in the induction furnace, mill and roller table, And the thermoelectric power generating unit is arranged so as to face the slab and / or the hot-rolled steel plate.

26. The manufacturing facility array as set forth in 25 above, wherein the thermoelectric generator further comprises a movement judging means for judging, based on the output of the thermoelectric generator, the operation ratio of the thermoelectric generator unit.

27. A manufacturing equipment column as set forth in 25 or 26, wherein the thermoelectric generator unit is installed according to the temperature of at least one of the slab and the hot-rolled sheet and / or the output of the thermoelectric generator unit.

28. A thermoelectric power generation module in a thermoelectric power generation unit, comprising: a high-temperature section densely arranged with respect to a low temperature section in accordance with the temperature of at least one of a slab and a hot-rolled sheet and / The manufacturing facility heat described in any of the above items 25 to 27,

29. The apparatus according to any one of the items 29 to 29, wherein the moving means comprises at least one of the thermoelectric power generating unit, the slab and the hot-rolled steel sheet, and the hot-rolled steel sheet, depending on the temperature and / or the output obtained by measuring the temperature of at least one of the slab and the hot- Wherein the control unit controls the distance of the manufacturing facility.

30. The manufacturing facility column as described in any of 25 to 29 above, wherein the thermoelectric generator further comprises a heat reflecting material.

31. The manufacturing equipment heat described in any one of 25 to 30 above, wherein the thermoelectric generator has a shape surrounding at least one of the slab and the hot-rolled steel sheet.

32. The thermoelectric generator according to any one of 25 to 31 above, wherein at least one opening is formed for evacuating the thermoelectric generator.

33. A thermoelectric generating method for thermally generating electricity by receiving at least one heat of a slab and a hot-rolled sheet by using the manufacturing facility heat described in any one of 25 to 32 above.

34. The thermoelectric generator according to 33 above, wherein the operation of the thermoelectric generator is controlled by using the operation judging means of the above-mentioned manufacturing equipment line.

35. A single-pipe plant row having a heating furnace, a forge welder and a stretch reducer, and a steel plate wound around the hot-rolled coil,

Wherein the thermoelectric generator is disposed at least one position selected from a conveying path of the steel plate and the pipe from the heating furnace to the stretch reducing furnace and the thermoelectric generating unit is disposed so as to face at least one of the steel plate and the pipe The manufacturing facility column as recited in 1 above.

36. The manufacturing facility column as recited in 35 above, wherein the thermoelectric generator unit is installed according to the temperature of at least one of the steel plate and the tube and / or the output of the thermoelectric generator unit.

37. The manufacturing facility column as described in 35 or 36 above, wherein the thermoelectric power generating unit is installed close to the high temperature portion at a low temperature portion in accordance with the temperature of at least one of the steel plate and the tube and / or the output of the thermoelectric power generating unit.

38. The manufacturing facility according to any one of 35 to 37 above, wherein the thermoelectric module in the thermoelectric generator unit is densely arranged with respect to the low temperature part in accordance with the temperature of at least one of the steel plate and the tube and / Ten.

39. The apparatus according to any one of the items 39 to 39, wherein the moving means comprises at least one of the thermoelectric power generating unit and at least one of the steel plate and the pipe, depending on the temperature and / or the output obtained by measuring the temperature of at least one of the steel plate and the tube and / 35. The manufacturing facility column according to any one of 35 to 38 above, wherein the distance is controlled.

40. The manufacturing equipment column according to any one of 35 to 39 above, wherein the thermoelectric generator further comprises a heat reflecting material.

41. The manufacturing facility heat described in any one of 35 to 40 above, wherein the thermoelectric generator is shaped so as to surround at least one outer peripheral portion of the steel sheet and the pipe.

42. The thermoelectric generator according to any one of 35 to 41 above, wherein at least one opening is formed.

43. A thermoelectric generating method for thermally generating electricity by receiving at least one heat of a steel plate and a pipe by using the heat of the manufacturing facility described in any one of 35 to 42 above.

According to the present invention, since the thermoelectric power generating unit and the heat source (the slab, the joining bar, the hot-rolled steel strip, the hot-rolled steel plate, the steel plate and the pipe) can be maintained in a state of good power generation efficiency, the power generation efficiency is effectively improved. As a result, the heat energy emitted from the heat source can be recovered at a high level compared to the conventional case.

1 is a schematic diagram for explaining an embodiment of the present invention.
2 is a cross-sectional view of a thermoelectric generator unit according to an embodiment of the present invention.
3 is another schematic diagram for explaining an embodiment of the present invention.
4 is an explanatory diagram of a thermoelectric generator showing one embodiment of the present invention.
5 is an explanatory diagram of another thermoelectric generator showing one embodiment of the present invention.
6 is a view showing an installation place (hot rolling facility) of a thermoelectric generator according to an embodiment of the present invention.
7 is a view showing an installation place (continuous casting facility) of a thermoelectric generator according to an embodiment of the present invention.
8 is a view showing an installation place (steel plate manufacturing facility) of a thermoelectric generator according to an embodiment of the present invention.
9 is a view showing an installation place (single pipe installation) of a thermoelectric generator according to an embodiment of the present invention.
10 is a graph showing the relationship between the generation output ratio and the distance between the steel material and the thermoelectric power generating unit.
11 is a graph showing the relationship between the generation output ratio and the distance between the tube and the thermoelectric power generating unit.
12 is a view showing an example of installation of the thermoelectric generator unit according to the present invention.
Fig. 13 is a view showing an installation example in a single pipe installation heat of a thermoelectric generator unit according to the present invention. Fig.
Fig. 14 is a cross-sectional view showing an example of the arrangement of the thermoelectric module in the thermoelectric generator unit according to the present invention.
Fig. 15 is a cross-sectional view showing an example of the arrangement of a thermoelectric module in a thermoelectric generator unit according to the present invention in a single-pipe installation sequence. Fig.
16 (A) and 16 (B) are views showing an example of the installation of a thermoelectric generator with a reflector according to the present invention.
17 (A) and 17 (B) are views showing examples of installation in a single-pipe installation column of a thermoelectric generator with a reflector according to the present invention.
18 (A) and 18 (B) are views showing another example of the installation of the thermoelectric generator unit according to the present invention.
19 (A) and 19 (B) are views showing another example of installation in a single pipe installation line of a thermoelectric generator unit according to the present invention.

(Mode for carrying out the invention)

Hereinafter, the present invention will be described in detail.

1 is a schematic view for explaining an embodiment of a thermoelectric generator of the present invention. In the drawing, reference numeral 1 denotes a thermoelectric generator unit, 2 denotes a moving means, 3 denotes a thermoelectric generator, 4 denotes a table roller, and 5 denotes a heat source.

In the present invention, the thermoelectric generator 3 includes a thermoelectric generator unit 1 disposed to face the heat source 5 and a moving unit 2 of the thermoelectric generator unit. Normally, the heat source 5 is on the upper surface of the table roller.

The heat source in the present invention can be applied to a slab, a rough bar and a hot-rolled steel strip (hereinafter, referred to as a slab, a slab, a rough bar and a hot rolled steel strip) in a hot rolling apparatus, (In the present invention, simply referred to as a slab and included in the slab or the like unless otherwise specified), a slab or a hot-rolled plate in a casting and rolling process (a hot- (Hereinafter referred to as hot-rolled plates in the present invention), steel plates and pipes in a single-pipe production apparatus (hereinafter also simply referred to as pipes, etc.) (Hereinafter referred to as a "heat source" means a generic name of all the heat sources).

Further, the thermoelectric generator of the present invention includes at least one thermoelectric generator unit in the width direction and the length direction of the heat source. The thermoelectric power generation unit has hydrothermal means, at least one thermoelectric power generation module, and heat dissipation means as shown below.

The hydrothermal means, depending on the material, may be several tens degrees, sometimes hundreds of degrees, on the high temperature side of the thermoelectric element. Therefore, the hydrothermal means may be any one having heat resistance and durability at that temperature. For example, in addition to copper, a copper alloy, aluminum, an aluminum alloy, and ceramics, general steel materials can be used.

Further, since aluminum has a low melting point, it can be used in a case where thermal design is performed in accordance with a heat source and the aluminum can withstand the heat. Since the ceramics have a small thermal conductivity, a temperature difference is generated in the hydrothermal means. However, in a place where a heat source is not present between the slab and the slab or the like, a heat storage effect can be expected, .

On the other hand, the heat dissipation means may be any of conventional heat dissipation means, and is not particularly limited. However, it is also possible to use a cooling device with a fin, a water cooling device utilizing contact heat transfer, a heat sink utilizing boiling heat transfer, water-cooling sheet) are exemplified as preferred forms.

Further, even if the low temperature side of the thermoelectric power generation unit is water-cooled by spray cooling or the like, the low temperature side is cooled efficiently. Particularly, when the thermoelectric power generation unit is disposed below the heat source, even if spray cooling is applied, residual water drops down on the table and the high temperature side of the thermoelectric power generation unit is cooled The low temperature side of the thermoelectric power generation unit is efficiently cooled. In the case of performing spray cooling, the side on which the spray coolant contacts and is cooled becomes the heat dissipating means.

As shown in Fig. 2, the thermoelectric module 8 used in the present invention is a thermoelectric element group in which P-type and N-type semiconductors as thermoelectric elements 6 are connected by tens to hundreds of electrodes 7 And an insulating material 9 arranged in two dimensions and arranged on both sides thereof. Further, the thermoelectric module 8 may be provided with a thermally conductive sheet or a shield plate on both sides or one side. Further, the protective plate may have the hydrothermal means 10 or the heat dissipating means 11, respectively.

In the case where the cooling plate itself serving as the hydrothermal heating means 10 and / or the heat dissipating means 11 is an insulating material or an insulating material is coated on the surface, the insulating material 9 may be replaced. In the figure, reference numeral 1 denotes a thermoelectric power generating unit, 6 denotes a thermoelectric element, 7 denotes an electrode, 9 denotes an insulating material, and 8 denotes a thermoelectric power generating module, and 10 denotes a hydrothermal means and 11 denotes a heat dissipating means.

In the present invention, the thermal contact resistance between members such as the hydrothermal means and the thermoelectric module, between the heat dissipating means and the thermoelectric module, and between the insulating material and the shield plate can be reduced and the thermoelectric power generation efficiency can be further improved The above-mentioned heat conductive sheet can be formed. This heat conductive sheet is not particularly limited as long as it has a predetermined thermal conductivity and can be used under the use environment of the thermoelectric module, but a graphite sheet and the like are exemplified.

The size of the thermoelectric module according to the present invention is preferably 1 x 10 ^-2 m 2 or less. This is because deformation of the thermoelectric module can be suppressed by making the size of the module approximately the same as that of the thermoelectric module. More preferably, it is 2.5 x 10 ^-3 m 2 or less.

The size of the thermoelectric power generating unit is preferably 1 m2 or less. This is because deformation of the thermoelectric generators themselves or the thermoelectric generators themselves can be suppressed by setting the unit to 1 m2 or less. More preferably, it is 2.5 x 10 < ^-1 > The thermoelectric power generating unit is formed by connecting the thermoelectric power generating modules in a range of 1 to several hundreds.

In the manufacturing equipment column of the present invention, a thermoelectric generator including a thermoelectric power generating unit disposed in opposition to a slab of a hot rolling equipment and moving means for moving the thermoelectric generating unit integrally is disposed in front of the hot rolling coiler The rough rolling mill, the rough rolling mill, the finishing mill, and the hot-rolled steel strip conveying route, which are all of the above-mentioned apparatuses.

Further, in the manufacturing equipment column of the present invention, a thermoelectric generator including a thermoelectric generator unit disposed to face a slab of a continuous casting facility and moving means for moving the thermoelectric generator unit integrally moves from a slab cooling device exit side, It can be provided at any position in the cutting apparatus and the slab cutting apparatus exit.

In the manufacturing equipment column of the present invention, a thermoelectric generator including a thermoelectric generator unit disposed in opposition to a slab and / or a hot-rolled sheet of a steel sheet manufacturing facility and moving means for performing integral movement of the thermoelectric generator unit, In the slab cooling apparatus and the slab cutting apparatus of the casting machine, the slab cooling apparatus output, the slab cutting apparatus output and the slab cutting apparatus output, and the maintenance of the rolling line, the guide path, the rolling mill and the roller table The roller table, and the roller table, in front of the guide rail, behind the guide rail, behind the guide rail, in front of the rolling mill, behind the rolling mill,

In addition, in the manufacturing equipment column of the present invention, a thermoelectric generator including a thermoelectric generator unit disposed in opposition to a pipe or the like and moving means for moving the thermoelectric generator unit integrally moves from a heating furnace to a stretch reducer, And the conveying path of the pipe material.

That is, in the present invention, it is sufficient that the thermoelectric power generating unit is arranged to be opposed to at least one heat source of the heat source.

Further, in the present invention, a thermoelectric generator having a plurality of thermoelectric generators may be used. In the case of having a plurality of thermoelectric generators in this way, at least one thermoelectric generator may have a moving means.

Here, the thermoelectric generator according to the present invention has a moving means capable of moving the thermoelectric generator unit integrally, and the distance between the thermoelectric generator unit and the heat source can be controlled by the moving means. The distance control is preferably performed using a power cylinder.

As shown in Fig. 1 and Fig. 3, the moving means may include a structure in which the thermoelectric power generating unit can move up and down integrally. Also, even if it can move back and forth, right and left, it can be used without any problem.

Further, the moving means may be a sliding means as shown in Fig. 4 or a moving means for taking an opening and closing type of movement as shown in Fig. Further, in a place where the temperature fluctuation is small, the moving means for controlling the distance is, for example, one in which the thermoelectric generator unit is fixed with a bolt or the thermoelectric generator unit is fixed with a slide type bolt, Or a manual moving means such as moving the thermoelectric generator unit by tightening it again.

Further, in the case of spray cooling as described above, the spray cooling apparatus itself may be moved together with the thermoelectric power generating unit or the like, and may not be moved.

In the present invention, some or all of the power converted by the thermoelectric generator may be used to adjust the distance of the thermoelectric generator or to operate the thermometer. And a power predicting means for predicting the power generated by the thermoelectric generator and the power consumed for operating the thermoelectric generator, respectively, and judging whether or not to activate the thermoelectric generator based on the generated power and the power consumption And an operation judging means for judging whether or not there is a fault.

That is, when it is predicted that the electric power for driving the thermoelectric generator unit is smaller than the generated electric power by the generated electric power prediction, the thermoelectric generator unit may not be operated. Further, when it is predicted that the heat-resistant temperature of the thermoelectric element is exceeded, the thermoelectric power generation unit is retracted until the temperature becomes at least the heat-resistant temperature.

In addition, the operation determining means can determine whether or not the movement from the power generation region to the non-power generation region is possible in accordance with the output of the thermoelectric power generation unit.

In the present invention, as a heat source, it is possible to use, for example, radiation of a slab in a hot rolling line, copying of a slab in a continuous casting line, copying of a hot rolled plate in a casting and rolling apparatus, Heat energy is used by radiation of the radiation.

As shown in Fig. 6, the hot-rolling line is composed of a heating furnace, a roughing mill, a finishing mill, and a winding machine. In the hot rolling step, a steel ingot (slab) of about 20 to 30 tons heated to about 1000 to 1200 占 폚 in a previous step or a heating furnace of the hot rolling mill is subjected to a roughing with a roughing mill, This is a rolling machine with a hot-rolled steel sheet with a thickness of about 1.2 to 25 mm. In the present invention, the steel material in the finishing mill is referred to as a hot-rolled steel band.

The continuous casting apparatus is composed of a roller group such as a ladle and a tundish, a mold and a slab cooling apparatus, a calibrating roll, and a slab cutting apparatus as shown in Fig. In the drawings, 21 denotes a ladle, 22 denotes a tundish, 23 denotes a mold, 24 denotes a slab cooling device, 25 denotes a roller group such as a calibration roll, 26 denotes a slab cutting device, 27 denotes a thermometer, 28 denotes a thermoelectric generator, Is a dummy bar table.

The continuous casting process starts when the molten steel produced in the blast furnace is put into the ladle through secondary refining and transferred to the top of the continuous casting machine. Then, molten steel is injected into the tundish from the uppermost ladle. Thereafter, the molten steel is poured into the mold from the bottom of the tundish, the molten steel in contact with the mold solidifies from the surface, and is subjected to a cooling step to become a slab. And a cutting step of cutting the slab, and the like.

The casting and rolling apparatus is shown in Fig. First, a casting machine 33 having a turn-dish 31 and a mold 32 is disposed for casting a slab, and then a casting machine 33 is disposed in a holding furnace 34, an induction furnace 35, a rough rolling mill 36, (37), a water cooling device (38), and a coil (39).

The furnace disposed behind the casting machine may be a conventional gas burner. The arrangement of the holding furnace and the induction furnace may be changed in order. Also, a heating furnace used in the case of batch rolling may be used.

A shearing machine 40 is disposed between the casting machine 33 and the retainer 34 and a shear 41 is disposed behind the roughing machine 36. Behind the finishing mill 37, a strip shearing machine 42 is disposed.

As shown in Fig. 9, a steel plate 51 supplied to a hot-rolled coil is heated to about 1250 ° C in a heating furnace 53, And then cut into a tube 52 of a desired diameter with a hot reducer 55 and cut to a desired length with a rotary hot saw 17 and then cooled with a cooling bed. 57), calibrating it with a straightener (59), and also performing a series of steps of chamfering the tube end. Reference numeral 58 denotes a sizer.

In the present invention, in addition to the moving means, the temperature (hereinafter simply referred to as the temperature of the slab or the like) of the slab or the like (including the position where the thermoelectric power generating unit is located and the vicinity suitable for the temperature measurement) and / And a thermoelectric power generation unit provided along the output of the thermoelectric power generation unit. As shown in FIG. 6, the thermoelectric power generating unit is placed at any position (A to E in the figure) from the front of the roughing mill through the finishing mill to the hot rolled steel belt conveying path, and the temperature of the slab or the like and / The efficiency can be improved in response to the temperature fluctuation of the heat source in the actual operation.

7, the temperature (hereinafter referred to simply as the temperature of the slab) of any of the slabs (including the position where the thermoelectric power generating unit is located and the vicinity suitable for the temperature measurement) And / or a thermoelectric power generating unit provided along the output of the thermoelectric generator unit. Further, the thermoelectric power generating unit may be disposed at any position (F in the figure) from the slab cooling device exit side to the upstream side of the slab cutting device, the lower surface of the slab cutting device and the slab cutting device exit, It is possible to efficiently generate electric power corresponding to the temperature fluctuation of the heat source in the actual operation.

Further, in the present invention, in addition to the moving means, as shown in Fig. 8, the temperature of the slab or the like (including the position where the thermoelectric power generating unit is located and the vicinity suitable for the temperature measurement (hereinafter simply referred to as the temperature of the slab or the like) ) And / or a thermoelectric power generating unit provided along the output of the thermoelectric generator unit. Further, such a thermoelectric power generating unit can be used in a slab cooling apparatus and a slab cutting apparatus of a slab casting machine, such as a slab cooling apparatus exit, a slab cutting apparatus exit, and a slab cutting apparatus exit (FIG. 8G) (Fig. 8I), a downstream side (Fig. 8J), a finishing rolling mill (Fig. 8K), and a hot rolled sheet conveying route phase (Fig. 8B) on the conveying table 8L in accordance with the temperature of the slab or the like and / or the output of the thermoelectric power generating unit, it is possible to efficiently generate electric power corresponding to the temperature fluctuation of the heat source in the actual operation.

Further, in the present invention, in addition to the moving means as described above, a temperature (hereinafter simply referred to as a temperature of a tube or the like) of any one of the above-mentioned pipes or the like (including the position where the thermoelectric power generating unit is located and the vicinity suitable for temperature measurement) ) And / or a thermoelectric power generating unit provided along the output of the thermoelectric generator unit. As shown in Fig. 9, this thermoelectric power generating unit can be disposed at any position of the steel plate conveying path from the heating of the single pipe line to the short-circuiting, or the pipe conveying path (for example, M and N in the figure) Or the output of the thermoelectric power generation unit, it is possible to efficiently generate electric power corresponding to the temperature fluctuation of the heat source in the actual operation.

In addition, the installation of the thermoelectric generator (thermoelectric generator) in the present invention is not limited to the upper side of the heat source, and the installation location is not limited to one location, .

It is also possible to provide the slab cutting device with an ascending function on the upstream side or the lower surface of the slab cutting device. Further, it is preferable to attach the slab for adjustment on the bottom surface of the so-called dummy bar table, because it does not increase the structure of the equipment.

In order to maintain a high operation rate of the thermoelectric generator unit, it is preferable to install the thermoelectric generator unit in a place where the time to approach the heat source is long. For example, in the hot rolling equipment line, on the transport table (FIG. 6A) until the slab from the heating furnace reaches the roughing mill, the inlet side of the descaling device (Fig. 6C) than the descaling device before finishing rolling where the bar bar stays relatively long in the vicinity of the roughing mill (Fig. 6B) or in the vicinity of the roughing mill where the width of the slab is adjusted, , A finish rolling machine (Fig. 6D), a hot rolled steel band conveying route phase (Fig. 6E), and the like.

In addition, there is a place to cover the conveyance table with a cover in order to suppress the temperature drop of the jaw bar during conveyance of the jaw bar from the rough rolling mill to the finishing mill in front of the finish rolling mill. This cover can be opened and closed, and when the temperature is lowered, the cover is closed, and when the rolling mill is not used, the cover is opened.

The thermoelectric generator unit according to the present invention can be attached to the cover.

Here, the temperature of the furnace bar is approximately 1100 캜, but the power generation efficiency of the thermoelectric unit is effectively improved by forming the heat receiving means and the heat dissipating means in order to cool the one side and secure the temperature difference necessary for power generation.

In the steel plate manufacturing equipment line, the time to come close to the heat source is long. On the transport table (FIG. 8H) until the slab from the heating furnace reaches the roughing mill, (Not shown), a roughing mill near the roughing mill (FIG. 8I), or a roughing bar in the vicinity of the roughing mill (not shown) for adjusting the width of the slab, (FIG. 8J), a finish rolling mill (FIG. 8K), a hot rolled sheet conveying line phase (FIG. 8L), and the like, as compared with the descaling apparatus before finish rolling.

Also, in the steel plate manufacturing equipment line, there is a place to cover the conveyance table with a cover in order to suppress temperature drop of the bar bar during conveyance of the bar from the rough rolling mill to the finish rolling mill in front of the finish rolling mill. This cover can be opened and closed, and when the temperature is lowered, the cover is closed, and when the rolling mill is not used, the cover is opened.

The thermoelectric generator unit according to the present invention can be attached to the cover.

Here, the temperature of the furnace bar is generally around 1100 캜, but the power generation efficiency of the thermoelectric unit is effectively improved by forming the heat dissipating means for cooling the one side and ensuring the temperature difference necessary for power generation.

Electricity is generated when the heat source maintains a small space with the thermoelectric generator and the conversion efficiency of the heat to the electric furnace is deteriorated when there is no heat source in the vicinity of the thermoelectric generator. In such a case, a power conditioner If it is linked with the grid power through, it can use the generated electricity without any problem. When used as an independent power source, it is possible to absorb fluctuations in generated electric power by using a battery, as in the case of photovoltaic power generation.

At the position of the slab cutting device from the slab cooling device exit, since the slab, which is a heat source, is always present, the output amount of the thermoelectric power generation becomes large. Therefore, it is preferable as the installation position of the thermoelectric generator.

On the other hand, on the exit side of the slab cutting device, the rate at which the slab, which is a heat source, passes near the thermoelectric generator unit is intermittent from the slab cutting to the next slab cutting. Therefore, for example, it is preferable that the slab conveyance after cutting is made equal to the continuous casting speed so that the slab, which is a heat source, is positioned in the vicinity of the thermoelectric generator to increase the thermoelectric power generation amount. When the conveying speed of the slab is V ₁ and the continuous casting speed is V ₀ , it is more preferable that V ₁ ≥V ₀ be satisfied and V ₀ ≤V ₁ ≤1.1 × V ₀ . After the slab has passed the vicinity of the thermoelectric generator, if the conveying speed of the slab is increased by the conventional process, the influence of the distribution path can be ignored, and efficient thermoelectric power generation can be performed. . In the present invention, the vicinity of the thermoelectric generator refers to the amount of heat received by the thermoelectric generator from the slab, which is reduced to about 90% of the position of the slab cutting device. If the heat quantity is less than 90%, efficient thermoelectric power generation can not be performed.

Further, a thermometer can be provided on the upstream side of the thermoelectric generator, and the distance between the thermoelectric generator unit and the slab or the like can be controlled in accordance with the measured value of the thermometer. By having such a function, thermoelectric power generation can be performed in a timely manner in response to temperature fluctuations even when there is a change in the temperature of a slab or the like, such as switching of a production lot. As a result, The efficiency is improved.

It is preferable that the above-mentioned thermometer is a non-contact type such as a radiation thermometer. However, if the line intermittently stops, the thermocouple may be brought into contact with the thermometer every time it is stopped. As the frequency of the measurement, it is preferable to measure the temperature automatically and periodically by installing a thermometer on the line. However, when the manufacturing conditions are changed, the operator may manually measure the temperature.

If the relationship between the temperature of the heat source and the distance at which the efficiency of the most thermoelectric power generation is good is obtained in advance, the thermoelectric power generating unit 1 can be determined in accordance with the measured value of the thermometer, for example, And the heat source 5 can be appropriately controlled in accordance with the temperature variation.

Further, the distance between the thermoelectric generator unit and the heat source can be controlled in accordance with the output of the thermoelectric generator unit. 10 is a graph showing the relationship between the distance from the steel material to the thermoelectric power generation unit and the power generation output ratio when the power generation output ratio at the rated output is 1. The graph shows the relationship between the temperature of the steel material at 850, And the interval between the thermoelectric power generating modules in the thermoelectric generator module was 70 mm.

10, it is possible to adjust the distance between the steel material and the thermoelectric generator unit according to the output of the thermoelectric generator unit. In the present invention, a heat source is made of a slab or the like instead of the above-mentioned steel material, and the distance between the thermoelectric power generating unit and the slab or the like is adjusted so that the output of the thermoelectric power generating unit becomes large. At this time, the actual output may be used, or an output value predicted from the temperature of the slab or the like may be used.

11 shows the relationship between the distance from the tube to the thermoelectric power generating unit and the power generation output ratio when the power generation output ratio at the rated output is set to 1 in the case of the single- And the temperature of the tube is taken as a parameter, when the temperature of the tube is 1150 DEG C, the distance from the thermoelectric power generating unit to the tube or the like is 150 mm, and when the temperature of the tube is 1000 DEG C, By moving and controlling the distance to 60 mm, the most efficient thermoelectric power generation can be performed.

11, it is possible to adjust the distance between the tube and the thermoelectric power generating unit according to the output of the thermoelectric generator. In the present invention, the distance between the thermoelectric power generating unit and the steel plate may be adjusted so that the heat source is replaced by a steel plate instead of the above-mentioned pipe, and the output of the thermoelectric generator is increased. Further, at the time of adjusting the distance, actual output may be used, or an output value predicted from the temperature of a pipe or the like may be used.

As described above, it is preferable to set the output of the thermoelectric generator unit to be a rated output, but it is necessary to set the output in consideration of the upper limit of the heat-resistant temperature of the thermoelectric generator unit so that the thermoelectric element is not destroyed. When the upper limit of the heat resistance is taken into consideration, the target of the power generation output ratio can be appropriately reduced, but it is preferable that the power generation output ratio is set to about 0.7. Since the output is proportional to the square of the temperature difference, the generation output ratio corresponds to about 80% of the temperature difference with respect to the temperature difference at the rated output.

The distance between the heat source and the thermoelectric power generating unit is preferably in a range of about 30 to 800 mm, and the temperature difference between the high temperature side and the low temperature side of the thermoelectric element is preferably a high And to stabilize the output at a high level. Here, to stabilize the output at a high level is preferably up to about 0.5 of the above-mentioned target output, more preferably about 0.7. Since the output is proportional to the square of the temperature difference, the power generation output ratio corresponds to about 70% or about 80% of the temperature difference at the rated output. There is no problem even if the upper surface portion is opened larger than the thermoelectric power generating unit.

In the present invention, the position of the thermoelectric power generating unit may be set in advance in accordance with the size and the type of the heat source. In addition, the position of the thermoelectric power generating unit may be set in advance from the output power performance of each thermoelectric generator unit in accordance with the size and type. Further, the installation location of the thermoelectric generator unit may be set in advance according to the size and type of the thermoelectric generator unit, from the output power performance for each thermoelectric generator unit and / or from the predicted output power from the temperature or the like. Further, at the introduction of the equipment, the distance between the thermoelectric generating unit and the heat source and the arrangement of the thermoelectric generating module in the thermoelectric generating unit may be determined.

For example, when the slab size in the hot rolling equipment is 900 mm and the temperature is 1200 ° C, the distance between the thermoelectric power generating unit and the slab is 720 mm and the size of the slab is 900 mm When the temperature is 1100 ° C, the most efficient thermoelectric power generation can be performed by moving the distance to 530 mm.

When the slab has a width of 900 mm and a temperature of 1000 캜, the distance between the thermoelectric power generating unit and the slab is 640 mm, the width of the slab is 900 mm, and the temperature is 950 캜 , When the distance is controlled to 530 mm, the most efficient thermoelectric power generation can be performed.

When the temperature of the hot-rolled steel strip in the hot rolling mill is 1000 ° C, the distance between the thermoelectric generating unit and the hot-rolled steel strip is 280 mm. When the temperature of the hot-rolled strip is 950 ° C, , The most efficient thermoelectric power generation can be performed.

When the temperature of the hot-rolled sheet in the steel plate manufacturing facility is 1000 ° C, the distance between the thermoelectric power generating unit and the hot-rolled sheet is 280 mm. When the temperature of the hot-rolled sheet is 950 ° C, So that the most efficient thermoelectric power generation can be performed.

In the present invention, as shown in Fig. 12, the thermoelectric generator can be installed at a distance corresponding to the temperature of the heat source other than the pipe or the like and / or the output of the thermoelectric generator. This is because, with such an installed embodiment, the moving distance and the number of times of movement of the thermoelectric generator unit can be reduced, and the power cost can be lowered, compared to a case where the thermoelectric generator unit is simply provided flat.

For example, in the center portion of Fig. 12, when the heat source is a slab or a bar bar, the distance from the unit is 720 mm, the distance between the end of the width is controlled to 640 mm, , The thermoelectric power generation can be efficiently performed by controlling the distance to the unit to 280 mm and the distance to the width end to 200 mm.

In the present invention, when the heat source is a pipe or the like, as shown in Fig. 13, the thermoelectric power generation unit can be installed at a distance corresponding to the temperature of the pipe or the like and / or the output of the thermoelectric power generation unit. This is because, with such an installed embodiment, the moving distance and the number of times of movement of the thermoelectric generator unit can be reduced, and the power cost can be lowered, compared to a case where the thermoelectric generator unit is simply provided flat.

For example, in the steel plate conveying route in which the steel pipe is replaced with the steel pipe at the central portion in Fig. 13, when the distance between the unit and the steel plate is controlled to be 90 mm and the width end is controlled to be 60 mm, . On the other hand, in the case of the pipe conveying path, the distance between the unit and the pipe is controlled to be 120 mm and the distance (referred to as the temperature drop in the pipe) is controlled to be 60 mm.

The temperature in the width direction (the direction perpendicular to the advancing direction of the slab or the like) of the slab or the like is measured from the end portion of the slab or the like, End portion) of the thermoelectric power generation unit, it is preferable that the thermoelectric power generation unit is moved and controlled in advance. This is because, at the width end, there is a high possibility that the power obtained by moving the thermoelectric generator unit is low.

In the embodiment provided according to the output of the thermoelectric power generating unit or the like, since the thermoelectric generating unit can be provided in an elliptical shape, the behavior of the heat flow is changed as compared with the case where the thermoelectric generating unit is not provided. And as a result, a thermoelectric generator having excellent heat energy recovery efficiency can be obtained.

Further, with this embodiment, by adding means for controlling the distance between the thermoelectric generating unit and the slab or the like as described above, even when there is a temperature fluctuation of the heat source in the actual operation, .

As shown in Fig. 14, the thermoelectric generator according to the present invention has a configuration in which the arrangement density of the thermoelectric generator modules in the thermoelectric generator unit is changed from a low temperature section to a low temperature section according to the temperature of the heat source, The high temperature portion can be made compact. At that time, it is desirable to install the output so as to stabilize to a high level. Here, to stabilize the output at a high level, it is preferable to set the target output to about 0.5, and more preferably to about 0.7. Since the output is proportional to the square of the temperature difference, the power generation output ratio corresponds to about 70% or about 80% of the temperature difference at the rated output.

These devices are also pointing to continuous lines with little change in temperature. This means that compared with the case where the temperature distribution of the heat source and / or the output of the thermoelectric generator unit are measured in advance and reflected to the above arrangement density, the thermoelectric generator unit Can be optimized.

As a specific example in which the batch density is changed, the thermoelectric module in the thermoelectric generator unit is densely arranged in a straight upper portion (central portion) of the heat source, that is, a high temperature portion, and at the width end portion of the slab or the like, , Thermoelectric power generation modules of the thermoelectric power generation units in the width direction can be effectively arranged to provide a thermoelectric power generation device effectively improving the power generation efficiency of the individual thermoelectric power generation units.

For example, in Fig. 14, when the heat source is a slab or a bar bar, if the steel material temperature is 1200 占 폚 and the distance between the thermoelectric power generating unit and the steel material is 640 mm, When the heat source is a hot rolled steel strip, the steel temperature is 1000 占 폚, and the distance between the thermoelectric power generating unit and the steel material is 280 mm, the arrangement of the thermoelectric module in the center of the unit is set at intervals of 60 mm And the end of the width is set at 63 mm intervals, the thermoelectric power generation can be performed efficiently.

In Fig. 14, when the distance between the slab and the thermoelectric power generating unit is 640 mm in a slab having a heat source of 1000 占 폚, the thermoelectric generating modules in the central portion of the unit are arranged at intervals of 55 mm, , The thermoelectric power generation can be performed efficiently.

14, in the case where the heat source is a slab or a bar bar, the thermoelectric module in the center of the unit is arranged at an interval of 55 mm and the width end is spaced at 60 mm. In the case of a hot- The thermoelectric power generation can be efficiently performed when the arrangement of the thermoelectric power generation modules of 60 mm intervals and the width ends of 63 mm intervals are performed efficiently.

Further, the output of the thermoelectric generator unit may be inspected by using the thermoelectric generator module spacing in the thermoelectric generator unit shown in FIG. 10, as a parameter, and the result of the examination may be used as data for setting the interval of the thermoelectric generator module of the present invention.

In the above-described embodiment, the arrangement of the thermoelectric module in the unit may be varied in density, or the unit itself may be arranged in a compact manner.

In the case where the heat source is made of a pipe or the like, the thermoelectric module in the thermoelectric generator unit is arranged densely in the straight upper portion (central portion) of the pipe or the like, that is, in the high temperature portion, By thermally arranging the thermoelectric power generation modules in the power generation unit, the thermoelectric power generation device effectively improving the power generation efficiency of the individual thermoelectric power generation units can be obtained.

For example, in Fig. 15, when the heat source is a tube, the thermoelectric power generation can be efficiently performed by arranging the thermoelectric module in the central portion of the unit at intervals of 65 mm and the end portions at intervals of 80 mm. Further, the output of the thermoelectric generator unit may be inspected by using the thermoelectric generator module interval in the thermoelectric generator unit shown in Fig. 11 as a parameter, and the result of the examination may be used as data for setting the interval of the thermoelectric generator module of the present invention.

In the above-described embodiment, the arrangement of the thermoelectric module in the unit may be dense, or the unit itself may be arranged in a compact manner.

In addition, the above-mentioned change in the arrangement density is suitable particularly in the case where there is no facility installation margin in the upward direction of the slab or the like. Further, this embodiment is also added to the means for controlling the distance between the thermoelectric power generating unit and the slab or the like, so that even when there is a temperature fluctuation of the heat source in the actual operation, the distance between the thermoelectric power generating unit and the slab It is possible to develop more efficiently.

According to the output of the thermoelectric generator according to the present invention, the position is changed in response to the temperature of the heat source or the density of the thermoelectric generator module is changed. However, when the thermoelectric generator unit is installed at the initial position When there is an output difference between units, it is also included that the unit with a small output is moved to a position where the output becomes large, specifically, the unit is placed close to the heat source. Incidentally, the temperature dependence includes not only the temperature of the heat source, but also the temperature distribution and shape coefficient of the heat source.

As shown in Figs. 16A, 16B, 17A and 17B, the thermoelectric generator according to the present invention is further provided with a heat reflecting material for collecting heat . In the figure, 100 is a heat reflecting material. By using such a heat reflecting material, the heat collecting effect for each thermoelectric power generating unit is enhanced, and efficient thermoelectric power generation can be performed.

As shown in Figs. 16 (A) and 17 (A), the heat reflecting material is provided on both sides of the heat source 5 and the heat source 52 (the traveling direction of the slab or the like in Fig. It is preferable to provide the light emitting diode in the front side in view of heat collection efficiency.

The shape of the heat reflecting material in the present invention may be a plane, a curved surface, or a V-shaped or U-shaped cross-section. The heat reflecting material preferably has a flat surface to a concave surface. However, since the aberration at the focal point varies depending on the incident angle of the concave surface to the heat reflecting material, It is desirable to provide a heat reflector or a plurality of heat reflector surfaces to have a reflector shape (curvature).

16 and 17, this embodiment can advantageously collect heat at an arbitrary portion of the thermoelectric generator unit, so that the induction of installation of the thermoelectric generator is further improved as described below .

For example, as shown in Fig. 16 (A) and Fig. 17 (A), even when a thermoelectric generator having a thermoelectric generator unit as a conventionally known installation position is used by collecting heat in a balanced manner to the thermoelectric generator unit, It is possible to optimize the power generation efficiency of the thermoelectric power generating unit of FIG. Further, as shown in Fig. 16 (B) and Fig. 17 (B), it is possible to irradiate the thermoelectric power generating unit with heat energy concentrated at an arbitrary point. The advantage of this embodiment is that even if the installation area of the thermoelectric generator unit is limited or when the thermoelectric generator unit with a large area can not be obtained, the thermoelectric generator unit can be moved, So that efficient thermoelectric power generation can be performed. Further, the heat reflecting material 100 may be formed by forming a driving portion, and changing the above-mentioned heat collecting portion by changing the angle by an external signal.

Therefore, the thermoelectric generator unit provided in accordance with the temperature of the heat source and / or the output of the thermoelectric generator unit according to the present invention means a thermoelectric generator unit capable of changing the distance or angle by means of the above- Unit.

The heat reflecting material in the present invention is not particularly limited as long as it can reflect heat energy (infrared rays), and it is possible to use a metal such as iron or the like subjected to mirror finish or tin- Location, cost of procurement of the goods, and the like.

16A, 16B, 17A, and 17B, both sides of the heat source can be considered as the installation place of the heat reflecting material 100, It may be installed at the lower part or the upper part of the heat source depending on the installation position of the power generation unit.

Figs. 18 (A), 18 (B), 19 (A) and 19 (B) show an installation example of the thermoelectric generator unit according to the present invention.

As shown in Figs. 18A and 18B, the thermoelectric generator unit according to the present invention may be configured to surround the outer periphery of a slab or the like (heat source 5) As shown in Fig. 19 (B), the outer periphery of the tube or the like (heat source 52) may be surrounded.

In the present invention, when a thermoelectric power generating unit is provided on a side surface or a lower surface of a heat source, the distance ds between the thermoelectric generator and the heat source is compared with the distance du of the upper surface thereof from the influence of convection caused by heat from the heat source, ds ≤ du. < / RTI >

Therefore, assuming that the distances a and c illustrated in Figs. 18 and 19 correspond to the above-described distance: du, the distances b and d correspond to the distance ds described above. In the drawings, the same symbol b may be a different distance, but it is important that the respective distances satisfy the relationship du and ds.

As described above, in the present invention, particularly in the case of the thermoelectric generator unit surrounding the outer periphery of the slab or the like as described above, the distance between the heat source and the thermoelectric generator unit can be appropriately changed even within the same apparatus.

In the case where the thermoelectric power generating unit is not provided on the entire surface, efficient heat generation can be performed by providing a plate (insulating plate) so as not to radiate the heat of the heat source to the outside. The material of the insulating plate is not particularly limited as long as it is used as a heat insulating plate of a high temperature material such as iron or Inconel (metal alloy) or ceramics and is capable of withstanding the temperature of the installation place. It is preferable that the emissivity is small so that the radiated heat from the heat source is absorbed by the plate and is directed to the thermoelectric power generating unit.

As shown in Figs. 18A and 19A, in the thermoelectric generator according to the present invention, at least one opening can be formed in order to retract the thermoelectric generator using the moving means.

This opening is normally covered with the thermoelectric generator unit. However, at the start of operation, the thermoelectric generator unit is moved from the opening to allow the slab or the like to be stably transported without damaging the thermoelectric generator. In this embodiment, a plurality of thermoelectric generators may be used to surround the heat source.

In the present invention, the entirety of the thermoelectric generator including the thermoelectric power generating unit and the moving means capable of moving the thermoelectric power generating unit can be used as a slab or the like, a hot rolled plate, In the abnormal state in which the heat source becomes the heat source, it is possible to move from the power generation region to the retreat position or move to the power generation region again to prevent physical / mechanical damage of the apparatus due to the height fluctuation of the steel sheet. As a result, it is possible to protect not only the breakage caused by the heat resistance temperature of the thermoelectric generator unit, but also the physical / mechanical breakage of the thermoelectric generator.

1, the heat source is placed in a state of being elevated by 1000 mm or more from a pass line used as a reference of a conveying path for moving a slab or the like so that the heat source does not collide with the thermoelectric generator. Next, when the height variation of the heat source is small, the thermoelectric generator is brought close to the heat source by the moving device as shown in Fig. As a result, thermoelectric power generation that is remarkably more efficient than the conventional one can be achieved. Further, in the case where the plate thickness is relatively large, or when the height variation of the heat source is small successively, the thermoelectric generator is brought close to the heat source continuously. It is preferable that the heat source and the thermoelectric generator are dropped by 10 mm or more.

When the moving distance is increased, the equipment cost is also increased. Therefore, when moving up and down, it is sufficient if the moving distance is 3000 mm. Preferably, the evacuation distance is 10 mm to 1000 mm.

As described above, an example of moving the thermoelectric generator in the vertical direction has been described. However, when the thermoelectric generator is moved or retreated to the side, it is moved to the retreat position by using a slide type moving means as shown in Fig. The moving distance allows the entire thermoelectric generator to be retracted from the width of the transport path. For example, a device capable of moving about 3,500 mm in a slab casting machine and about 2000 mm in a rolling line having a narrower product width is used. Further, in the rolling line of a wide plate, it is necessary to retract for 5 m or more. Further, when the size of the product such as a pipe is small, it is sufficient that the moving distance for retreating is about 300 mm.

Next, as shown in Fig. 5, when the opening and closing type moving means as shown in Fig. 5 is used, a space is required to open and close and move the thermoelectric generator up to an angle of 90 deg. . Preferably, since the thermoelectric generator itself has a weight, the thermoelectric generator is inverted by 180 ° so that the apparatus is stabilized at the time of retraction.

A distance sensor may be attached to the upstream side and / or the downstream side of the thermoelectric generator, and the position of the thermoelectric device may be feedforward and / or feedback controlled using the value of the distance sensor.

The above-described embodiments can be arbitrarily combined with each other. For example, when the thermoelectric generating unit is to be installed in an elliptic arc shape with an extremely large curvature in order to obtain an optimum thermoelectric generating efficiency only by adjusting the distance, an embodiment using a heat reflecting material, So that the curvature can be relaxed.

Of course, it is needless to say that the present invention may include all the embodiments at the same time.

As shown in Fig. 6, the thermoelectric power generating method according to the present invention is characterized in that, in a hot rolling equipment heat treatment furnace having a roughing mill in which a slab is roughly rolled into a rough bar and a finishing mill in which the hot- A thermoelectric generator unit including a thermoelectric generator unit disposed in opposition to at least one of a slab, a bar and a hot-rolled coil, and moving means for moving the thermoelectric generator unit integrally with the thermoelectric generator unit, , The slab conveying path, the rough rolling mill, the rough-bar conveying path, the finish rolling mill, and the hot-rolled strip conveying path.

7, the thermoelectric power generating method according to the present invention includes a continuous casting apparatus for continuously casting a hot slab, a slab cooling apparatus for cooling the hot slab, and a hot slab cutting apparatus for cutting the hot slab A thermoelectric generator comprising a thermoelectric power generating unit arranged to face a hot slab and a moving means for performing integral movement of the thermoelectric generating unit in a row of continuous casting equipment is disposed upstream of the slab cooling device, It can be installed at any position of the lower surface of the cutting apparatus and the slab cutting apparatus exit side.

8, the thermoelectric generating method according to the present invention comprises a slab casting machine and a thermoelectric generator unit arranged in opposition to at least one of a slab and a hot rolled steel sheet in a steel sheet manufacturing equipment column having a rolling line, And a moving means for moving the thermoelectric power generating unit integrally with the thermoelectric generator, wherein the thermoelectric generator includes a slab cooling device and a slab cutting device of a slab casting machine, the slab cooling device outputting, the slab cutting device, In the front and rear of the rolling mill, on the roller table and on the roller table in the guide rail, on the rolling mill and on the roller table, in front of the holding furnace, behind the furnace, behind the induction furnace, behind the induction furnace, It can be installed at at least one position selected from among the tables.

In addition, as shown in Fig. 9, the thermoelectric power generation method according to the present invention includes a thermoelectric power generation unit arranged to face at least one of a pipe or the like in a single pipe heat train, and a thermoelectric power generation unit The thermoelectric generator having the means can be installed at any position of the steel sheet from the heating furnace to the stretch reducing furnace and the conveying path of the tube.

Further, the thermoelectric power generation method according to the present invention uses any one of the thermoelectric generators shown in Figs. 1, 3 to 5, and 12 to 19 as appropriate or in combination. That is, a thermoelectric generator having a moving means capable of moving the thermoelectric generator unit as a whole is a basic constitution, and the thermoelectric generator unit is further provided in accordance with the temperature of the heat source and / or the output of the thermoelectric generator unit, The thermoelectric power generation module in the thermoelectric power generation unit can be installed close to the low temperature portion in accordance with the temperature and / or the output of the thermoelectric power generation unit, or the thermoelectric power generation module in the thermoelectric power generation unit can be densely Or at least one opening may be formed in order to surround the outer periphery of the heat source or to evacuate the thermoelectric generator.

In addition, at the time of implementation, the thermoelectric generators according to the above-described plurality of embodiments may be used as well.

Example

[Example 1]

In order to confirm the effect of the thermoelectric generator according to the present invention, the thermoelectric generator unit having the structure shown in Fig. 2 and having an area of 1 m 2 was used, the thermoelectric generator unit was installed at the position of C in Fig. 6, A test was performed to confirm the output of the thermoelectric power generating unit.

In the case of Inventive Example 1, at the commencement of the commencement of the operation of the joining bar, the distance between the thermoelectric generator and the joining bar was set to 3,000 mm. After the joining end of the joining bar passed, the thermoelectric generating device was moved so that the distance from the joining bar to the joining bar was 720 mm As shown in FIG. In addition, the temperature of the jaw bar is approximately 1200 DEG C at the center in the width direction, and the end of the width (within the range of approximately 80 mm in the width direction from the width end of the bar). ) A joining bar having a temperature of 1100 DEG C, a width of 900 mm and a thickness of 40 mm was used.

As a result, an output of 75% was obtained with respect to the rated output. Also, the sparkle output was 62%.

As a second example of the invention, the distance between the thermoelectric generator and the bar bar was set to 3000 mm at the commencement of the operation of the bar bar, and the thermoelectric generator was moved after the bar bar tip passed. A test was performed to control the distance from the jo bar to 720 mm. Also, a rough bar having a temperature of approximately 1200 DEG C, a width of 900 mm and a thickness of 40 mm was used throughout the entire width direction.

As a result, the rated output was almost the same as the rated output, but the output was 83% at the width end A.

12, a test was performed to control the distance between the thermoelectric power generating unit and the slab to be 720 mm and the distance to the width end A to be 640 mm . In addition, the JOVA used the same size and same temperature distribution as in Inventive Example 2.

As a result, an almost rated output was obtained in the entire width direction.

14, the thermoelectric generators in the thermoelectric generators were arranged at intervals of 55 mm at the central portion and at intervals of 60 mm at the width ends A, and the unit, the slab, Was controlled to be 640 mm. In addition, the JOVA used the same size and same temperature distribution as in Inventive Example 2.

As a result, an almost rated output was obtained in the width direction.

In the case of Inventive Example 5, a test was performed in which the outer periphery of the thermoelectric power generating unit and the heat source was configured as shown in Fig. 16 (A), and a heat reflecting material for collecting heat was placed in the thermoelectric power generating unit. In addition, the JOVA used the same size and same temperature distribution as in Inventive Example 2.

As a result, the thermoelectric power generation unit was able to obtain almost the rated output.

As a sixth example of the invention, further, a test was performed in which a thermoelectric generator having four thermoelectric generators was installed so as to surround the outer periphery of the bar. In addition, the JOVA used the same size and same temperature distribution as in Inventive Example 2.

As a result, the number of the thermoelectric power generating units was increased, and an output of 2.2 times as much as that in the case of Example 4 was obtained.

As Inventive Example 7, only the thermoelectric generator unit on the upper surface of the bar bar was made movable so as to form an opening as shown in Fig. 18 (A).

That is, at the commencement of commutation of the joining bar, a test was performed in which the upper surface was an opening and the upper thermoelectric generator was brought close to the joining bar after the stable commutation. In addition, the JOVA used the same size and same temperature distribution as in Inventive Example 2.

As a result, since the rated output is obtained and the other thermoelectric generator units are not operated, the operation cost of the thermoelectric generator unit can be reduced.

In Comparative Example 1, a thermoelectric power generating unit was provided in the same place as in Example 1 using the same thermoelectric generating unit as in Inventive Example 1. At the time of installation, the distance between the thermoelectric generator and the bar bar was set to 3000 mm so that the thermoelectric generator would not break down. In addition, the JOVA used the same size and same temperature distribution as in Inventive Example 2.

As a result, the output was only about 1% of the rated output.

From the results of Inventive Examples 1 to 7 and Comparative Example 1, it was confirmed that the excellent power generating effect of the hot rolling facility heat using the present invention was obtained. In the first embodiment described above, the installation location of the thermoelectric generator unit is changed in accordance with the temperature of the bar and the temperature in the vicinity of the installation site by using the hot-rolling equipment column with the moving means above the bar bar , It is confirmed that the same result can be obtained as long as the present invention is applied even if the installation place and the installation form are changed according to the temperature of the slab and the hot-rolled coil or the output of the thermoelectric power generating unit.

[Example 2]

In order to confirm the effect of the thermoelectric generator according to the present invention, the thermoelectric generator unit having the structure shown in Fig. 2 and having an area of 1 m 2 was used, the thermoelectric generator unit was installed at the position of F in Fig. 7, A test was performed to confirm the output of the thermoelectric power generating unit.

At the start of the hot slab carrier, the distance between the thermoelectric generator and the hot slab was set to 3000 mm. After the tip of the hot slab had passed, the thermoelectric generator was moved so that the distance from the hot slab to the hot slab was 720 mm As shown in FIG. Further, the hot slab temperature is approximately 1000 占 폚 at the center in the width direction, and the width end (within the range of approximately 80 mm from the width end face of the hot slab in the width direction, hereinafter the width end B means the same range ) A hot slab having a temperature of 950 占 폚, a width of 900 mm and a thickness of 250 mm was used.

As a result, an output of 75% was obtained with respect to the rated output. Also, the sparkle output was 62%.

In the case of Inventive Example 9, the same thermoelectric power generating unit as that in Inventive Example 8 was used. When the span of the hot slab was started, the distance between the thermoelectric generator and the hot slab was set to 3000 mm, . A test was performed to control the distance from the hot slab to 640 mm. Further, a hot slab having a width of 900 mm and a thickness of 250 mm was used as the hot slab temperature throughout the entire width direction at 1000 占 폚.

As a result, the output in the width direction was almost the rated output with respect to the rated output, but the output in the width end portion B was 83%.

12, a test was performed in which the distance between the thermoelectric power generating unit and the slab was 640 mm and the distance between the thermoelectric power generating unit and the width end portion was 530 mm . In addition, the hot slab was of the same size and the same temperature distribution as that of Inventive Example 9 was used.

As a result, an almost rated output was obtained in the entire width direction.

14, the thermoelectric generators in the thermoelectric generators were arranged at intervals of 55 mm at the central portion and at intervals of 60 mm at the width ends B, Was controlled to be 640 mm. In addition, the hot slab was of the same size and the same temperature distribution as that of Inventive Example 9 was used.

As a result, an almost rated output was obtained in the width direction.

In the case of Inventive Example 12, a test was performed in which the thermoelectric power generating unit and its outer periphery were configured as shown in Fig. 16 (A), and a heat reflecting material for collecting heat was placed in the thermoelectric power generating unit. In addition, the hot slab was of the same size and the same temperature distribution as that of Inventive Example 2 was used.

As a result, the thermoelectric power generation unit was able to obtain almost the rated output.

As the inventive example 13, a test was conducted to further provide a thermoelectric generator having four thermoelectric power generating units so as to surround the outer periphery of the hot slab. In addition, the hot slab was of the same size and the same temperature distribution as that of Inventive Example 2 was used.

As a result, the number of thermoelectric power generating units was increased, and an output of 2.2 times as much as that of Inventive Example 11 was obtained.

As the example 14, only the thermoelectric generator unit on the upper surface of the hot slab was movable, and the operation for forming the opening as shown in Fig. 18 (A) was performed.

That is, at the start of the hot slab carrier, a test was conducted in which the upper surface was an opening and the thermoelectric generator on the upper surface was brought close to the hot slab after stably conducted. In addition, the hot slab was of the same size and the same temperature distribution as that of Inventive Example 2 was used.

As a result, since the rated output is obtained and the other thermoelectric generator units are not operated, the operation cost of the thermoelectric generator unit can be reduced.

In Comparative Example 2, a thermoelectric power generating unit was provided in the same place as that in the case of the above-described Example 8 by using the same thermoelectric power generating unit as in the case of the above- However, when the thermoelectric generator was installed, the distance between the thermoelectric generator and the hot slab was set to 3000 mm so that the thermoelectric generator would not break down. In addition, the hot slab was of the same size and the same temperature distribution as that of Inventive Example 2 was used.

As a result, the output was only about 1% of the rated output.

From the results of Inventive Examples 8 to 14 and Comparative Example 2, it was confirmed that the continuous casting facility heat using the present invention has excellent power generating effect. In the second embodiment described above, the installation location of the thermoelectric generator unit is changed in accordance with the temperature of the hot slab and the temperature in the vicinity of the installation site by using the continuous casting facility column having the moving means above the hot slab , It has been confirmed that the same result can be obtained as far as the present invention is applied even if the installation place and the installation form are changed according to the output of the thermoelectric power generating unit.

[Example 3]

In order to confirm the effect of the thermoelectric generator according to the present invention, the thermoelectric generator unit having the structure shown in Fig. 2 and having an area of 1 m 2 was used, and the thermoelectric generator unit was installed at the position of G in Fig. A test was performed to confirm the output of the thermoelectric power generating unit.

In the case of Inventive Example 15, the distance between the thermoelectric generator and the slab was set to 3000 mm at the start of the slab transfer, and the distance between the thermoelectric generator and the slab was controlled to 720 mm after the end of the slab was passed . Further, the slab temperature (in the present embodiment, simply referred to as the slab temperature means the temperature at the center of the slab) is approximately 1200 DEG C at the center in the width direction, The width is 900 mm, and the thickness is 40 mm. A slab having a temperature of 1100 캜, a width of 900 mm and a thickness of 40 mm is used.

As a result, an output of 75% was obtained at the center in the width direction with respect to the rated output. The width end portion C had an output of 62%.

At the start of the slab transfer, the distance between the thermoelectric generator and the slab was set to 3000 mm. After the tip of the slab had passed, the thermoelectric generator was moved. A test was performed to control the distance to the slab to 720 mm. Further, a slab having a slab temperature of approximately 1200 deg. C throughout the entire width direction, a width of 900 mm and a thickness of 40 mm was used.

As a result, the rated power was generated at approximately the rated power at the center in the width direction with respect to the rated power, but the output was 83% at the wide end portion C.

In the seventh embodiment, the thermoelectric power generating unit was configured as shown in Fig. 12, and the central portion was tested to control the distance between the thermoelectric power generating unit and the slab to 720 mm and the width end C to 640 mm . In addition, the slab was the same size and same temperature distribution as that of the inventive example 16.

As a result, an almost rated output was obtained in the entire width direction.

14, the thermoelectric power generating modules in the thermoelectric power generating units were arranged at intervals of 55 mm at the center portion, at intervals of 60 mm at the width end portion C, and the units, the slabs, Was controlled to be 640 mm. In addition, the slab was the same size and same temperature distribution as that of the inventive example 16.

As a result, an almost rated output was obtained in the width direction.

As an example 19, a test was performed in which the outer periphery of the thermoelectric power generating unit and the heat source was configured as shown in Fig. 16 (A), and a heat reflecting material for collecting heat was placed in the thermoelectric power generating unit. The slabs of the same size and the same temperature distribution as those of Example 16 were used.

As a result, the thermoelectric power generation unit was able to obtain almost the rated output.

As the inventive example 20, a test was conducted to further provide a thermoelectric generator having four thermoelectric generators so as to surround the outer periphery of the slab. In addition, the slab was the same size and same temperature distribution as that of the inventive example 16.

As a result, the number of the thermoelectric power generation units increased, and an output power of 2.2 times as much as that in the case of Example 18 was obtained.

As the inventive example 21, only the thermoelectric generator unit on the upper surface of the slab was allowed to move, and control was performed to form an opening as shown in Fig. 18 (A).

That is, at the start of the slab transfer plate, the thermoelectric power generation unit was retracted from the opening in the upper surface, and after the stable transfer plate, the thermoelectric generator on the upper surface was brought close to the slab. In addition, the slab was the same size and same temperature distribution as that of the inventive example 16.

As a result, since the rated output is obtained and the other thermoelectric generator units are not operated, the operation cost of the thermoelectric generator unit can be reduced.

In Comparative Example 3, the same thermoelectric generating unit as in Inventive Example 15 was used. In this installation, the distance between the thermoelectric generator and the slab was set to 3000 mm so that the thermoelectric generator would not break down. In addition, the slab was the same size and same temperature distribution as that of the inventive example 16.

As a result, the output was only about 1% of the rated output.

In Comparative Example 4, a test was performed so as not to retract the thermoelectric power generation unit at the start of the slab transfer plate. As a result, at the commencement of transfer of the slab, the slab came into contact with the thermoelectric generator unit, causing the thermoelectric generator unit to be damaged.

From the results of the inventions 15 to 21 and the comparative examples 3 and 4, it was confirmed that the excellent power generating effect of the steel sheet manufacturing facility heat treatment according to the present invention was achieved. In the above-described third embodiment, the steel plate manufacturing facility line for performing the casting and rolling with the moving means above the slab is used to set the installation location of the thermoelectric generator unit, etc., according to the temperature of the slab and the temperature in the vicinity of the installation site It has been confirmed that the same result can be obtained as long as the present invention is applied even if the installation location and the installation form are changed in accordance with the temperature of the hot-rolled plate and the hot-rolled coil or the output of the thermoelectric power generating unit.

[Example 4]

In order to confirm the effect of the thermoelectric generator according to the present invention, the thermoelectric generator unit having the structure shown in Fig. 2 and having an area of 1 m 2 was used, the thermoelectric generator was installed at the position of N in Fig. 9, A test was performed to confirm the output of the thermoelectric power generating unit.

In the case of the invention 22, when the distance between the thermoelectric generator and the tube is set to 3000 mm at the time of starting the tube, the thermoelectric generator is moved after the tube tip has passed and the distance from the tube is controlled to 155 mm . Further, a tube having a tube temperature of approximately 1200 DEG C and an outer diameter of 120 mm was used.

As a result, an output of 75% was obtained with respect to the rated output. In addition, the end had an output of 62%.

In the case of Inventive Example 23, the same thermoelectric power generating unit as that of Inventive Example 22 was used, and at the start of the core material of the tube, the distance between the thermoelectric generator and the tube was set to 3000 mm, and after the tube tip passed, the thermoelectric generator was moved . A test was conducted to control the distance from the pipe to 125 mm. Further, a tube material having a tube temperature of approximately 1200 DEG C and an outer diameter of 120 mm was used throughout the entire width direction.

As a result, with respect to the rated output, the output was almost the rated output in the width direction, but the output was 83% at the end.

In the case of the inventive example 24, the thermoelectric power generation unit was configured as shown in Fig. 13, and the central portion was tested to control the distance between the thermoelectric power generation unit and the tube to 155 mm and the distance to the end to 125 mm. Further, the tube has the same size and the same temperature distribution as that of the above-described embodiment 23.

As a result, an almost rated output was obtained in the entire width direction.

15, the thermoelectric power generating modules in the thermoelectric power generating units are arranged at intervals of 55 mm at the central portion and at intervals of 60 mm at the end portions, and the distance between the unit and the tube Was controlled to 125 mm. Further, the tube has the same size and the same temperature distribution as that of the above-described embodiment 23.

As a result, an almost rated output was obtained in the width direction.

In the case of the invention 26, a test was performed in which the outer periphery of the thermoelectric power generating unit and the heat source was configured as shown in Fig. 17 (A), and a heat reflecting material for collecting heat was placed in the thermoelectric power generating unit. Further, the tube has the same size and the same temperature distribution as that of the above-described embodiment 23.

As a result, the thermoelectric power generation unit was able to obtain almost the rated output.

Test 27 In addition, a test was conducted to provide a thermoelectric generator having four thermoelectric power generating units so as to surround the outer peripheral portion of the tube. Further, the tube has the same size and the same temperature distribution as that of the above-described embodiment 23.

As a result, the number of thermoelectric power generation units increased, and an output of 2.2 times as much as that of the case of Example 25 was obtained.

In the case of the invention 28, only the thermoelectric power generating unit on the upper surface of the tube was movable, and the operation for forming the opening as shown in Fig. 19 (A) was performed.

That is, at the time of starting the core material of the pipe material, the top surface was used as an opening, and after the material was stably made, a test was performed to bring the thermoelectric device of the upper surface close to the pipe material. Further, the tube has the same size and the same temperature distribution as that of the above-described embodiment 23.

As a result, since the rated output is obtained and the other thermoelectric generator units are not operated, the operation cost of the thermoelectric generator unit can be reduced.

In Comparative Example 5, a thermoelectric power generating unit was provided in the same place as the above-described Example 22 using the same thermoelectric generating unit as that of the above-described Example 22. However, when the thermoelectric generator was installed, the distance between the thermoelectric generator and the tube was set to 3000 mm so that the thermoelectric generator was not broken. Further, the tube has the same size and the same temperature distribution as that of the above-described embodiment 23.

As a result, the output was only about 1% of the rated output.

From the results of the inventions 22 to 28 and the comparative example 5, it was confirmed that the excellent power generation effect of the single-pipe plant heat using the present invention was confirmed. In the fourth embodiment described above, the thermoelectric generating apparatus to which the moving means at the upper side of the tube is attached is used to change the installation location of the thermoelectric generator unit according to the temperature of the tube and the temperature in the vicinity of the installation site. It has been confirmed that the same result can be obtained as long as the present invention is applied, even if the installation place and the installation form are changed according to the temperature or the output of the thermoelectric power generating unit.

According to the present invention, since heat generated from a slab or the like can be effectively converted into electric power, it contributes to energy saving in a manufacturing factory.

1: Thermoelectric generator unit
2: Moving means
3: Thermoelectric generator
4: Table roller
5: Steel
6: Thermoelectric element
7: Electrode
8: Thermoelectric module
9: Insulation material
10: heat receiving means
11: Heat dissipation means
21: ladle
22: Tundish
23: Mold
24: slab cooling device
25: Correction rollers Roller group
26: slab cutting device
27: Thermometer
28: Thermoelectric generator
29: dummy bar table
31: Turn Dish
32: Mold
33: casting machine
34: Holding furnace
35: induction furnace
36: rougher
37: finisher
38: Water cooling device
39: Coiler
40, 41: Shearing machine
42: strip shearing machine
51: steel plate
52:
53: heating furnace
54: Molding Shortening
55: hot reducer
56: Rotary hot saw
57: Cooling bed
58: sizer
59: Straightener
100: heat reflector

Claims (43)

In a facility line of a steelworks having a moving heat source,
And the thermoelectric generator unit includes a thermoelectric generator unit and a thermoelectric generator unit having moving means for moving the thermoelectric generator unit integrally with the thermoelectric generator unit, Manufacturing plant heat. The method according to claim 1,
Wherein the manufacturing equipment row is a hot rolling equipment column comprising a roughing mill in which a heated slab is rough-rolled to form a rough bar and a finish rolling mill in which the roughing bar is finely rolled to form a hot- ,
The thermoelectric generator is disposed at any position of the slab conveying route, the rough rolling mill, the roughing bar conveying route, the finish rolling mill, and the hot-rolled steel strip conveying route from the front of the roughing mill to the hot rolling steel bed conveying route, A manufacturing facility column arranged to face at least one of a slab, a joining bar and a hot-rolled steel strip. 3. The method of claim 2,
Wherein the thermoelectric generator further comprises a movement judging means for judging, based on the output of the thermoelectric generator unit, the operation ratio non-operation of the thermoelectric generator unit. The method according to claim 2 or 3,
Wherein the thermoelectric generator unit is installed in accordance with the temperature of at least one of the slab, the rough bar, and the hot-rolled steel strip and / or the output of the thermoelectric generator unit. 5. The method according to any one of claims 2 to 4,
Wherein the thermoelectric power generating unit is installed close to the high temperature portion at a low temperature portion in accordance with the temperature of at least one of the slab, the rough bar and the hot rolled steel strip and / or the output of the thermoelectric power generating unit. 6. The method according to any one of claims 2 to 5,
Wherein the thermoelectric module in the thermoelectric generator unit is densely arranged at a high temperature portion with respect to the low temperature portion in accordance with the temperature of at least one of the slab, the bar and the hot-rolled coil and / or the output of the thermoelectric generator. 7. The method according to any one of claims 2 to 6,
Wherein the moving means moves the thermoelectric power generating unit and the slab, the bar and the hot-rolled coil according to the temperature and / or the output obtained by measuring the temperature of at least one of the slab, the bar and the hot- The manufacturing facility column for controlling the distance to at least one of the columns. 8. The method according to any one of claims 2 to 7,
Wherein the thermoelectric generator further comprises a thermal reflector. 9. The method according to any one of claims 2 to 8,
Wherein the thermoelectric generator is shaped to surround an outer peripheral portion of at least one of a slab, a bar, and a hot-rolled steel strip. 10. The method according to any one of claims 2 to 9,
Wherein the thermoelectric generator is provided with at least one opening. A method of thermoelectric generation in which at least one heat of a slab, a bar, and a hot-rolled steel strip is heat-received (heat-received) by using the manufacturing facility heat as set forth in any one of claims 2 to 10. 12. The method of claim 11,
And controlling the operation of the thermoelectric generator unit by using the operation judging means of the manufacturing equipment column. The method according to claim 1,
Wherein the manufacturing facility heat is a continuous casting facility column for continuously casting a hot slab having a slab cooling device and a slab cutting device,
Wherein the thermoelectric generator is disposed at any position of the slab cooling apparatus from the upstream side of the slab cutting apparatus upstream of the slab cutting apparatus, the slab cutting apparatus, and the slab cutting apparatus out of the slab cooling apparatus, . 14. The method of claim 13,
Wherein the thermoelectric generator further comprises a movement judging means for judging, based on an output of the thermoelectric generator, a movement ratio of the thermoelectric generator unit. The method according to claim 13 or 14,
And the thermoelectric generator unit is installed according to the temperature of the hot slab and / or the output of the thermoelectric generator unit. 16. The method according to any one of claims 13 to 15,
And the thermoelectric power generating unit is installed close to the high temperature portion in the low temperature portion in accordance with the temperature distribution in the width direction of the hot slab. 17. The method according to any one of claims 13 to 16,
The thermoelectric module in the thermoelectric power generating unit is arranged in a densely arranged high-temperature section with respect to the low-temperature section in accordance with the temperature distribution in the width direction of the hot slab. 18. The method according to any one of claims 13 to 17,
Wherein the moving means controls the distance between the thermoelectric generating unit and the hot slab in accordance with the temperature and / or the output obtained by measuring the temperature of the hot slab and / or the output of the thermoelectric power generating unit. 19. The method according to any one of claims 13 to 18,
Wherein the thermoelectric generator further comprises a thermal reflector. 20. The method according to any one of claims 13 to 19,
Wherein the thermoelectric generator is shaped to surround an outer periphery of the hot slab. 21. The method according to any one of claims 13 to 20,
Wherein the thermoelectric generator is provided with at least one opening. A method of thermoelectric generation in which heat of a hot slab is heat-treated by using the manufacturing facility heat according to any one of claims 13 to 21 to thermally generate electricity. 23. The method of claim 22,
A method of manufacturing a thermoelectric power generating apparatus, which uses a manufacturing equipment column provided with a thermoelectric generator on the side of a slab cutting device to set a conveying speed of a hot slab opposed to the thermoelectric generator to a continuous casting speed of at least 1.1 times the continuous casting speed Way. 24. The method according to claim 22 or 23,
And controlling the operation of the thermoelectric generator unit by using the operation judging means of the manufacturing equipment column. The method according to claim 1,
Wherein the manufacturing facility heat is a steel plate manufacturing facility column for casting and rolling including a slab casting machine and a rolling line,
The thermoelectric generator is provided in a slab cooling apparatus and a slab cutting apparatus of a slab casting machine in a slab cooling apparatus output side, a slab cutting apparatus output and slab cutting apparatus output side, and a holding furnace of the rolling line, In the induction furnace, in front of the retaining furnace in the rolling mill and roller table, behind the retaining furnace, in front of the induction furnace, behind the induction furnace, in front of the rolling mill, behind the rolling mill, And the thermoelectric power generating unit is arranged so as to face the slab and / or the hot-rolled steel plate. 26. The method of claim 25,
Wherein the thermoelectric generator further comprises a movement judging means for judging, based on the output of the thermoelectric generator, the operation ratio of the thermoelectric generator unit. 27. The method of claim 25 or 26,
And the thermoelectric generator unit is installed according to the temperature of at least one of the slab and the hot-rolled sheet and / or the output of the thermoelectric generator unit. 28. The method according to any one of claims 25 to 27,
The thermoelectric module in the thermoelectric power generating unit is arranged so that the high temperature portion is densely arranged with respect to the low temperature portion in accordance with the temperature of at least one of the slab and the hot rolled plate and / Manufacturing plant heat. 29. The method according to any one of claims 25 to 28,
Wherein the moving means moves at least one of the thermoelectric power generating unit and at least one of the slab and the hot-rolled plate in accordance with the temperature and / or the output obtained by measuring the temperature of at least one of the slab and the hot- Of the manufacturing facility. 30. The method according to any one of claims 25 to 29,
Wherein the thermoelectric generator further comprises a thermal reflector. 31. The method according to any one of claims 25 to 30,
Wherein the thermoelectric generator is shaped to surround at least one of the slab and the hot-rolled plate. 32. The method according to any one of claims 25 to 31,
Wherein the thermoelectric generator has at least one opening for evacuating the thermoelectric generator. 33. A thermoelectric generating method for thermally generating electricity by receiving at least one heat of a slab and a hot-rolled sheet by using the manufacturing facility heat as set forth in any one of claims 25 to 32. 34. The method of claim 33,
And controlling the operation of the thermoelectric generator unit by using the operation judging means of the manufacturing equipment column. The method according to claim 1,
Wherein the manufacturing equipment column comprises a heating furnace, a forge welder, and a stretch reducer, and is a single-pipe furnace column having a steel plate wound around a hot-
Wherein the thermoelectric generator is disposed at least one position selected from a conveying path of the steel plate and the pipe from the heating furnace to the stretch reducing furnace and the thermoelectric generating unit is disposed so as to face at least one of the steel plate and the pipe Manufacturing plant heat. 36. The method of claim 35,
And a thermoelectric generator unit arranged in accordance with the temperature of at least one of the steel plate and the tube and / or the output of the thermoelectric generator unit. 37. The method of claim 35 or 36,
Wherein the thermoelectric power generating unit is installed close to the high temperature portion at a low temperature portion in accordance with the temperature of at least one of the steel plate and the tube and / or the output of the thermoelectric generator. 37. The method according to any one of claims 35 to 37,
Wherein the thermoelectric module in the thermoelectric generator unit is arranged densely with respect to the low temperature portion in accordance with the temperature of at least one of the steel plate and the tube and / or the output of the thermoelectric generator. 39. The method according to any one of claims 35 to 38,
Wherein the moving means moves the thermoelectric power generating unit such that the distance between the thermoelectric power generating unit and at least one of the steel sheet and the pipe is determined according to the temperature and / or the output obtained by measuring the temperature of at least one of the steel sheet and the tube and / Manufacturing plant heat to control. 40. The method according to any one of claims 35 to 39,
Wherein the thermoelectric generator further comprises a thermal reflector. 41. The method according to any one of claims 35 to 40,
Wherein the thermoelectric generator is shaped to surround at least one outer peripheral portion of the steel sheet and the pipe. 42. The method according to any one of claims 35 to 41,
Wherein the thermoelectric generator is provided with at least one opening. 42. A thermoelectric generating method for thermoelectrically generating electricity by heat-treating at least one heat of a steel plate and a pipe by using the heat of manufacturing equipment according to any one of claims 35 to 42.

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