TWI579068B - Thermoelectric power generation method - Google Patents

Description

Thermoelectric power generation method

The present invention relates to a manufacturing equipment line of a steelmaking plant having a moving heat source, and relates to a hot rolling equipment line and a thermoelectric power generating method using the same, the hot rolling equipment line including a steel preform to be roughed by the hot rolling step A thermoelectric power generation device that converts thermal energy generated by radiation of rolled steel bars and hot-rolled steel strips into electrical energy and recovers them.

Further, the present invention relates to a manufacturing apparatus line including a thermoelectric power generation apparatus for converting thermal energy generated by radiation of a hot steel billet in a continuous casting step and recovering the same, and a thermoelectric power generation method using the same. Continuous casting equipment line.

Furthermore, the present invention relates to a manufacturing apparatus line and a thermoelectric power generation method using the same, the manufacturing apparatus line including converting thermal energy of a hot steel or hot rolled sheet in a steel sheet manufacturing step of continuous casting and rolling into electric energy and A steel sheet manufacturing equipment line for casting and rolling a thermoelectric power generation device to be recovered.

Moreover, the present invention relates to a manufacturing equipment line including a thermoelectric power generation system that converts thermal energy generated by radiation of steel sheets and pipes in a manufacturing process of a forged pipe into electric energy and recovers the same. The forged pipe line of the device.

In the prior art, it has been known that when a temperature difference is given to a different type of conductor or semiconductor, electric power is generated between the high temperature portion and the low temperature portion. It is also known to use a thermoelectric power generation element utilizing such a property to directly conduct heat. Convert to electricity.

In recent years, the following research has been promoted, that is, in the manufacturing equipment such as a steel-making plant, by using the power generation of the thermoelectric power generation element as described above, the energy that has been discarded as waste heat so far, for example, from a steel embryo, Or the heat generated by the radiation of steel such as rough rolled steel bars, hot rolled steel strips, hot steel blanks, steel plates, and pipes.

As a method of utilizing thermal energy, for example, Patent Document 1 discloses a method in which a heat receiving device is disposed opposite to a high temperature object, and heat energy of the high temperature object is converted into electric energy and recovered.

Patent Document 2 describes a method in which a thermoelectric device module is brought into contact with heat energy treated as waste heat to convert it into electric energy and recover it.

Patent Document 3 describes a method of recovering heat which is emitted from a cooling material to the atmosphere on a cooling bed as electric power.

Patent Document 4 describes a heat recovery method and a cooling bed capable of efficiently converting thermal energy of a high-temperature material into electric energy by heat conduction of a ramp.

Patent Document 5 describes a heat recovery device that collects heat generated by treatment of a metal material on a hot rolling line and stores it as electric power.

[Previous Technical Literature] [Patent Literature]

Patent Document 1: Japanese Patent Laid-Open No. 59-198883

Patent Document 2: Japanese Patent Laid-Open No. 60-34084

Patent Document 3: Japanese Patent Laid-Open No. Hei 10-296319

Patent Document 4: Japanese Patent Laid-Open No. 2006-263783

Patent Document 5: Japanese Patent Laid-Open Publication No. 2011-62727

However, in Patent Document 1, although it is described that it can be applied to a steel preform continuous casting line, the temperature change of the steel preform in actual operation and the heat release (heat energy) due to the change in the amount of steel embryo are not considered. Changes in heat source temperature due to changes in operating conditions, such as changes.

Further, in Patent Document 2, since it is necessary to fix the module with respect to the heat source, there is a problem that the technique cannot be applied to a heat source such as a hot rolling facility.

In Patent Document 3, although the material temperature in the middle and high temperature portions is 300 ° C or higher, and the radiant heat and the convective heat after cooling the material are described, the temperature change of the high temperature material in actual operation or the high temperature is not described. Changes in heat source temperature due to changes in operating conditions, such as changes in heat released from heat (heat).

The technique described in Patent Document 4 is only specialized in heat recovery by heat conduction, and does not consider changes in temperature of a high-temperature material in actual operation or a change in heat release (thermal energy) due to fluctuation of a high-temperature material. Changes in heat source temperature due to changes in operating conditions.

The technique described in Patent Document 5 is not essential to the power storage means described in the document except for the above-mentioned practical operation.

Further, in the conventional thermoelectric power generation method, in the unsteady state in which the front end or the rear end of the steel material is a heat source, in order to prevent breakage of the device due to fluctuations in the height of the steel sheet, the thermoelectric power generation device can be placed only in the steel material. distance. Further, if it is placed far away from the steel material, there is a problem that the thermal energy of the high-temperature object cannot be efficiently transmitted to the thermoelectric power generator, and the electric energy cannot be efficiently converted into electric energy.

The present invention has been made in view of the above-described status quo, and an object thereof is to provide a hot rolling apparatus or a continuous casting apparatus that moves (flows) a heat source, and performs casting and rolling. The steel plate manufacturing equipment and the forging pipe equipment include a thermoelectric power generation that can efficiently convert the thermal energy of the steel blank, the rough-rolled steel strip, the hot-rolled steel strip, the hot-rolled steel sheet, the steel plate and the pipe material with the release state into electric energy and recover it. The hot rolling equipment line of the apparatus, the continuous casting equipment line, the steel plate manufacturing equipment line for casting and rolling, the forging pipe line, and the thermoelectric power generation method using the same.

As a result of intensive research to solve the above problems, the inventors have found that high-efficiency thermoelectric power generation can be performed by adjusting the installation position such as the distance between the heat source and the thermoelectric power generation unit according to the release state of the thermal energy. A hot rolling line, a continuous casting equipment line, a steel sheet manufacturing equipment line for casting and rolling, and a forging pipe line, which are available in a novel steelmaking plant with a heat-generating thermoelectric power generation unit, and the use of the same The thermoelectric power generation method.

The present invention is based on the above-mentioned insights.

That is, the main constitution of the present invention is as follows.

A manufacturing equipment line which is a manufacturing equipment line of a steelmaking plant having a moving heat source, the manufacturing equipment line including a thermoelectric power generating unit having a thermoelectric power generating unit, and performing one of the thermoelectric power generating units The moving means of moving, and the thermoelectric power generating unit is configured to oppose the heat source.

2. The manufacturing equipment line according to the above 1, wherein the manufacturing equipment line comprises a roughing mill for rough rolling a heated steel billet to obtain a rough rolled steel strip, and finishing the rough rolled steel strip to be hot. The hot rolling equipment line of the finishing mill for the rolling strip, the thermoelectric power generating device is disposed in the steel embryo transfer path from the rough rolling mill to the hot rolling steel strip conveying path, the rough rolling mill, the rough rolling steel strip conveying path, the finishing mill and the hot rolled steel strip Any one of the transport paths, and the above-mentioned thermoelectric power generation unit is disposed opposite to the steel embryo and rough rolling At least one of a steel strip and a hot rolled steel strip.

3. The manufacturing equipment line according to the above 2, wherein the thermoelectric generation device further includes an operation determining means for determining whether the thermoelectric power generation unit operates or not according to an output of the thermoelectric generation unit.

4. The manufacturing apparatus line according to the above 2 or 3, wherein the thermoelectric power generation unit is provided corresponding to a temperature of at least one of a steel blank, a rough rolled steel strip, and a hot rolled steel strip and/or an output of the thermoelectric power generation unit.

5. The manufacturing equipment line of any one of the above 2 to 4, wherein the temperature of the at least one of the steel blank, the rough rolled steel strip and the hot rolled steel strip and/or the output of the thermoelectric power generating unit is relative to the high temperature The thermoelectric power generation unit is disposed in such a manner as to be close to the low temperature portion.

6. The manufacturing equipment line of any one of the above 2 to 5, wherein the temperature corresponding to at least one of the steel blank, the rough rolled steel strip and the hot rolled steel strip and/or the output of the thermoelectric power generating unit is relative to the low temperature The thermoelectric power generation module in the thermoelectric power generation unit is closely arranged in the high temperature portion.

7. The manufacturing equipment line according to any one of the above 2 to 6, wherein the moving means corresponds to measuring the temperature of at least one of the steel blank, the rough rolled steel strip and the hot rolled steel strip and/or the output of the thermoelectric power generating unit. The temperature and/or output is determined to control the distance between the thermoelectric power generation unit and at least one of the steel blank, the rough rolled steel strip, and the hot rolled steel strip.

8. The manufacturing apparatus line according to any one of the above 2 to 7, wherein the thermoelectric power generating apparatus further includes a heat reflective material.

The manufacturing equipment line according to any one of the above 2 to 8, wherein the thermoelectric power generating device has a shape surrounding a peripheral portion of at least one of a steel blank, a rough rolled steel strip, and a hot rolled steel strip.

10. The manufacturing apparatus line according to any one of the above 2 to 9, wherein the thermoelectric power generating apparatus is provided with at least one opening.

A thermoelectric power generation method for performing thermoelectric power generation by receiving heat of at least one of a steel blank, a rough rolled steel strip, and a hot rolled steel strip using the manufacturing equipment line of any one of the above 2 to 10.

12. The thermoelectric power generation method according to the above 11, wherein the operation of the thermoelectric power generation unit is controlled by the operation determining means of the manufacturing equipment line.

13. The manufacturing equipment line according to the above 1, wherein the manufacturing equipment line comprises a continuous casting equipment line for continuously casting a hot steel billet with a steel blank cooling device and a steel blank cutting device, and the thermoelectric power generating device is configured from steel. The delivery side of the embryo cooling device to the upstream of the steel cutting device, the lower portion of the steel cutting device, and the delivery side of the steel cutting device, and the thermoelectric power generation unit is disposed opposite to the hot steel.

14. The manufacturing equipment line according to the above 13, wherein the thermoelectric generation device further includes an operation determining means for determining whether the thermoelectric power generation unit operates or not according to an output of the thermoelectric power generation unit.

15. The manufacturing apparatus line according to the above 13 or 14, wherein the thermoelectric power generation unit is provided corresponding to a temperature of the hot steel billet and/or an output of the thermoelectric power generating unit.

16. The manufacturing apparatus line according to any one of the above 13 to 15, wherein the thermoelectric power generation unit is disposed in a manner close to the low temperature portion with respect to the high temperature portion corresponding to the temperature distribution in the width direction of the hot steel.

17. The manufacturing apparatus line according to any one of the above 13 to 16, wherein the thermoelectric power generation module in the thermoelectric power generation unit is closely arranged at a high temperature with respect to the low temperature portion corresponding to a temperature distribution in a width direction of the hot steel blank unit.

The manufacturing apparatus line according to any one of the above 13 to 17, wherein the moving means is performed in accordance with a temperature and/or an output obtained by measuring a temperature of the hot steel billet and/or an output of the thermoelectric power generating unit. The control of the distance between the thermoelectric power generation unit and the hot steel billet.

The manufacturing equipment line according to any one of the above 13 to 18, wherein the thermoelectric generation device further includes a heat reflective material.

The manufacturing equipment line according to any one of the above 13 to 19, wherein the thermoelectric power generating device has a shape surrounding an outer peripheral portion of the hot steel slab.

The continuous casting equipment line according to any one of the above 13 to 20, wherein the thermoelectric generation device is provided with at least one opening.

A thermoelectric power generation method for performing thermoelectric power generation by receiving heat of a hot steel bill using the manufacturing equipment line of any one of the above 13 to 21.

23. The thermoelectric power generation method according to the above-mentioned item 22, wherein the conveying line provided with the thermoelectric power generating device on the delivery side of the steel preform cutting device is set to continuously cast the hot steel preform to the thermoelectric power generating device. Above speed, and is at least 1.1 times the continuous casting speed.

24. The thermoelectric power generation method according to 22 or 23 above, wherein the operation of the thermoelectric power generation unit is controlled by the operation determining means of the above-described manufacturing equipment line.

25. The manufacturing equipment line according to the above 1, wherein the manufacturing equipment line includes a steel sheet manufacturing equipment line which is cast and rolled by a steel blank casting machine and a rolling line, and the thermoelectric power generating apparatus is disposed in the steel embryo. The steel embryo cooling device and the steel embryo cutting device of the casting machine, the steel embryo cooling device delivery side, the steel embryo cutting device, and the steel embryo cutting device delivery side, and the holding furnace and the induction furnace of the rolling line, At least one of the rolling mill and the roller table, which is selected before the furnace is maintained, after the furnace is maintained, before the induction furnace, after the induction furnace, before the rolling press, after the rolling press, above the roller table, and between the roller tables position, And the thermoelectric power generation unit is disposed opposite to the steel blank and/or the hot rolled sheet.

26. The manufacturing apparatus line according to the above 25, wherein the thermoelectric generation device further includes an operation determining means for determining whether the thermoelectric power generation unit is operated or not according to an output of the thermoelectric power generation unit.

27. The manufacturing apparatus line of 25 or 26 above, wherein the thermoelectric power generation unit is provided corresponding to a temperature of at least one of the steel blank and the hot rolled sheet and/or an output of the thermoelectric power generating unit.

The manufacturing apparatus line of any one of the above-mentioned items 25 to 27, wherein the thermoelectricity is compared with respect to the low temperature portion corresponding to the temperature of at least one of the steel blank and the hot rolled sheet and/or the output of the thermoelectric power generating unit The thermoelectric power generation module in the power generation unit is closely arranged at the high temperature portion, thereby stabilizing the output at a high level.

The manufacturing equipment line according to any one of the above-mentioned items 25 to 28, wherein the moving means is determined according to a temperature of at least one of the steel preform and the hot rolled sheet and/or an output of the thermoelectric power generating unit. Temperature and/or output, and control of the distance between the thermoelectric power generation unit and at least one of the steel blank and the hot rolled sheet.

The manufacturing apparatus line according to any one of the above-mentioned items 25 to 29, wherein the thermoelectric power generating device further includes a heat reflective material.

The manufacturing equipment line according to any one of the items 25 to 30, wherein the thermoelectric power generating device has a shape surrounding a peripheral portion of at least one of the steel blank and the hot rolled sheet.

The manufacturing apparatus line according to any one of the above-mentioned items 25 to 31, wherein the thermoelectric power generating apparatus is provided with at least one opening for retracting the thermoelectric generation device.

33. A method of thermoelectric generation, which utilizes any of the above 25 to 32 The manufacturing equipment line receives the heat of at least one of the steel blank and the hot rolled sheet to perform thermoelectric power generation.

34. The thermoelectric power generation method according to 33 above, wherein the operation of the thermoelectric power generation unit is controlled by the operation determining means of the above-described manufacturing equipment line.

35. The manufacturing equipment line according to the above 1, wherein the manufacturing equipment line has a heating furnace, a forging machine, and a Stretch reducer, and the forging pipe device for forming a steel sheet wound into a hot rolled steel coil into a pipe material In the wire, the thermoelectric generation device is disposed at at least one of a steel plate and a pipe transport path from the heating furnace to the stretch tube machine, and the thermoelectric power generation unit is disposed to face at least one of the steel plate and the pipe material. .

36. The manufacturing equipment line of 35 above, wherein the thermoelectric power generation unit is provided corresponding to a temperature of at least one of the steel sheet and the pipe and/or an output of the thermoelectric power generation unit.

37. The manufacturing apparatus line of 35 or 36, wherein the thermoelectricity is set in a manner close to the low temperature portion with respect to the high temperature portion corresponding to the temperature of at least one of the steel sheet and the tube and/or the output of the thermoelectric power generating unit. Power generation unit.

The manufacturing equipment line of any one of the above-mentioned 35 to 37, wherein the temperature of the at least one of the steel sheet and the pipe and/or the output of the thermoelectric power generating unit is the same as that of the low temperature portion The thermoelectric power generation module is closely arranged at a high temperature portion.

The manufacturing apparatus line according to any one of the above-mentioned items 35 to 38, wherein the moving means corresponds to determining a temperature of at least one of a steel sheet and a pipe and/or a temperature of the thermoelectric power generation unit and/or Alternatively, the control is performed to control the distance between the thermoelectric power generation unit and at least one of the steel plate and the pipe.

40. The manufacturing equipment line of any one of the above 35 to 39, wherein The thermoelectric generation device further includes a heat reflective material.

The manufacturing equipment line according to any one of the above-mentioned items, wherein the thermoelectric power generation device has a shape surrounding a peripheral portion of at least one of the steel sheet and the pipe.

The manufacturing apparatus line according to any one of the above 35 to 41, wherein the thermoelectric power generating apparatus is provided with at least one opening.

43. A method of thermoelectric generation, which is characterized in that the heat of at least one of a steel sheet and a pipe is received by the manufacturing equipment line of any one of the above 35 to 42 to perform thermoelectric power generation.

According to the present invention, since the thermoelectric power generation unit and the heat source (steel blank, rough rolled steel strip, hot rolled steel strip, hot rolled sheet, steel sheet, and pipe) can be maintained in a state in which power generation efficiency is good, power generation efficiency is effectively improved. As a result, the heat energy released from the heat source can be recovered at a high level as compared with the prior art.

1‧‧‧Thermal power generation unit

2‧‧‧Mobile means

3‧‧‧Thermal power generation unit

4‧‧‧Conveying roller

5‧‧‧Steel

6‧‧‧Thermal components

7‧‧‧Electrode

8‧‧‧Thermal power generation module

9‧‧‧Insulation materials

10‧‧‧heated means

11‧‧‧heating means

21‧‧‧Steel drum

22‧‧‧ Feeding trough

23‧‧‧Molding

24‧‧‧Steel embryo cooling device

25‧‧‧Friction roller

26‧‧‧Steel embryo cutting device

27‧‧‧ thermometer

28‧‧‧Thermal power generation unit

29‧‧‧Ingot bar

31‧‧‧ Feeding trough

32‧‧‧Molding

33‧‧‧ casting machine

34‧‧‧maintaining furnace

35‧‧‧Induction furnace

36‧‧‧Roughing mill

37‧‧‧ finishing mill

38‧‧‧Water cooling device

39‧‧‧Winding machine

40, 41‧‧‧ shearing machine

42‧‧‧Strip steel plate shearing machine

51‧‧‧ steel plate

52‧‧‧ pipes

53‧‧‧heating furnace

54‧‧‧Forming forging machine

55‧‧‧Hot reducer

56‧‧‧Rotary hot saw

57‧‧‧Cold bed

58‧‧‧ Filter

59‧‧‧ Straightener

100‧‧‧Hot reflective material

a, b, c, d‧‧‧ distance

Installation place of A, B, C, D, E, F, G, H, I, J, K, L, M, N‧‧‧ devices

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing an embodiment of the present invention.

Figure 2 is a cross-sectional view showing a thermoelectric power generation unit according to an embodiment of the present invention.

Fig. 3 is a schematic view showing another embodiment of an embodiment of the present invention.

Fig. 4 is an explanatory view showing a thermoelectric generation device according to an embodiment of the present invention.

Fig. 5 is an explanatory view showing another thermoelectric power generator according to an embodiment of the present invention.

Fig. 6 is a view showing an installation place (hot rolling facility) of the thermoelectric generation device according to the embodiment of the present invention.

Fig. 7 is a view showing a installation place (continuous casting equipment) of a thermoelectric generation device according to an embodiment of the present invention.

Fig. 8 is a view showing a place where a thermoelectric power generator according to an embodiment of the present invention is installed (steel plate) Diagram of manufacturing equipment).

Fig. 9 is a view showing a installation place (forging pipe device) of the thermoelectric generation device according to the embodiment of the present invention.

Fig. 10 is a graph showing the relationship between the power generation output ratio and the distance between the steel material and the thermoelectric power generation unit.

Fig. 11 is a graph showing the relationship between the power generation output ratio and the distance between the pipe and the thermoelectric power generation unit.

Fig. 12 is a view showing an example of the arrangement of the thermoelectric generation unit of the present invention.

Fig. 13 is a view showing an arrangement example in the forging pipe line of the thermoelectric generation unit of the present invention.

Fig. 14 is a cross-sectional view showing an arrangement example of a thermoelectric power generation module in the thermoelectric generation unit of the present invention.

Fig. 15 is a cross-sectional view showing an arrangement example of a forging pipe line of a thermoelectric power module in the thermoelectric generation unit of the present invention.

16(A) and 16(B) are views showing an installation example of a thermoelectric power generator with a reflector according to the present invention.

17(A) and (B) are views showing an example of installation in a forging pipe line of a thermoelectric power generator with a reflector according to the present invention.

18(A) and 18(B) are views showing another example of installation of the thermoelectric generation unit of the present invention.

19(A) to (E) are views showing another example of the arrangement of the forging pipe line of the thermoelectric generation unit of the present invention.

Hereinafter, the present invention will be specifically described.

Fig. 1 is a schematic view showing an embodiment of a thermoelectric generation device according to the present invention. In the picture, 1 is a thermoelectric power generation unit, 2 is a moving means, 3 is a thermoelectric power generation device, 4 is a conveying roller, and 5 is a heat source.

In the present invention, the thermoelectric generation device 3 includes a thermoelectric power generation unit 1 disposed opposite to the heat source 5, and a moving means 2 of the thermoelectric generation unit. Further, usually, the heat source 5 is located above the conveying roller.

The heat source in the present invention is a steel blank, a rough-rolled steel strip and a hot-rolled steel strip in a hot rolling apparatus (hereinafter, referred to as a steel blank or the like, referred to as a steel blank, a rough-rolled steel strip, and a hot-rolled steel strip), or a continuous casting apparatus. Hot steel embryo (also referred to as steel embryo in the present invention, if not stated otherwise, included in the steel embryo, etc.), steel or hot-rolled sheet in the casting and rolling steps (rough-rolling steel strip according to the treatment step, The names of hot steel sheets, hot rolled sheets, steel sheets, hot steel strips, steel strips, strips, thick plates, and the like are changed, but in the following, the present invention is referred to as a hot rolled sheet or the like, and a forged pipe manufacturing apparatus is used. Steel sheets and pipes in the middle (hereinafter, also referred to as pipes, etc.) (hereinafter, referred to as heat sources refers to the general term of all the heat sources mentioned above).

Further, the thermoelectric generation device of the present invention includes at least one thermoelectric power generation unit in the width direction and the longitudinal direction of the heat source. Further, the thermoelectric power generation unit has a heat receiving means opposite to the heat source, at least one thermoelectric power generation module, and a heat radiating means as shown below.

Although the heat receiving means differs depending on the material, it may be a temperature of a high temperature side of the thermoelectric element plus a temperature of several degrees to several tens of degrees and sometimes several hundreds of degrees. Therefore, the heat receiving means may have heat resistance or durability at this temperature. For example, in general, a steel material such as copper or a copper alloy, aluminum, an aluminum alloy, or a ceramic can be used.

Further, since aluminum has a low melting point, it can be used for heat design corresponding to a heat source and heat resistance is required. Further, since the ceramic has a small thermal conductivity, it causes a temperature difference in the heat receiving means. However, it can be used in a portion where there is no heat source between the steel or the like and the steel or the like, and the heat storage effect can be expected.

On the other hand, the heat dissipating means is not particularly limited, and a preferred embodiment includes a cooling device including a heat sink, a water cooling device that effectively utilizes contact heat transfer, and a heat sink that effectively utilizes boiling heat transfer. , water-cooled plate with refrigerant flow path, etc.

Moreover, even if the low temperature side of the thermoelectric power generation unit is water-cooled by shower cooling or the like, the low temperature side is efficiently cooled. In particular, when the thermoelectric power generation unit is disposed below the heat source, even if the shower cooling is applied, the low temperature side of the thermoelectric power generation unit is efficiently disposed by appropriately arranging the shower device and leaving the remaining water down to the platform. Cooling without cooling the high temperature side of the thermoelectric unit. In the case of spray cooling, the side to which the shower refrigerant contacts and is cooled becomes a heat sink.

As shown in FIG. 2, the thermoelectric power module 8 used in the present invention is a thermoelectric element group in which tens to hundreds of pairs of electrodes 7 are connected as P-type and N-type semiconductors of the thermoelectric element 6 in two dimensions. Arranged, and further comprising insulating material 9 disposed on both sides of the thermoelectric element group. Further, the thermoelectric power module 8 may be provided with a heat conductive sheet or a protective plate on both sides or on one side. Furthermore, the protective plates can also serve as the heat receiving means 10 or the heat dissipating means 11, respectively.

When the cooling plate itself as the heat receiving means 10 and/or the heat dissipating means 11 is an insulating material, or when the surface is covered with an insulating material, the insulating material 9 may be replaced. In the figure, 1 is a thermoelectric power generation unit, 6 is a thermoelectric element, 7 is an electrode, 9 is an insulating material, and 8 is a thermoelectric power generation module, 10 is a heat receiving means, and 11 is a heat dissipating means.

In the present invention, the heat conducting sheet may be disposed between the heat receiving means and the thermoelectric power generating module, or between the heat radiating means and the thermoelectric power generating module, or between the insulating material and the protective plate, to reduce thermal contact between the members. Resistance, and seek for further improvement in the efficiency of thermoelectric power generation. The heat conductive sheet is not particularly limited as long as it has a predetermined thermal conductivity and can be used in the use environment of the thermoelectric power module, and a graphite sheet or the like is exemplified.

Furthermore, the size of the thermoelectric power module of the present invention is preferably 1 × 10 ^-2 m ² or less. The reason for this is that the deformation of the thermoelectric power module can be suppressed by making the size of the module to the above-described extent. More preferably, it is 2.5 × 10 ^-3 m ² or less.

Further, the size of the thermoelectric power generation unit is preferably 1 m ² or less. This is because the deformation of the thermoelectric power generation modules or the thermoelectric power generation unit itself can be suppressed by making the unit 1 m ² or less. More preferably, it is 2.5 × 10 ^-1 m ² or less. Further, the thermoelectric power generation unit is formed by connecting the thermoelectric power modules in the range of 1 to several hundred.

In the manufacturing equipment line of the present invention, a thermoelectric power generation unit including a steel slab and the like arranged in a hot rolling facility, and a thermoelectric power generation device for moving the unit of the thermoelectric power generation unit can be placed in front of the rough rolling mill. Any one of the steel preform transfer path, the rough rolling mill, the rough rolling steel strip transfer path, the finishing mill, and the hot rolled steel strip transfer path up to the hot rolled steel strip transfer path.

Further, in the manufacturing equipment line of the present invention, the thermoelectric power generation unit including the steel preform disposed opposite to the continuous casting apparatus, and the thermoelectric power generation unit for moving the unit of the thermoelectric power generation unit may be placed in the steel embryo cooling. Any of the device delivery side, the steel blank cutting device, and the steel blank cutting device delivery side.

Further, in the manufacturing equipment line of the present invention, the thermoelectric power generation unit including the steel slab and/or the hot-rolled sheet which are arranged in the steel sheet manufacturing facility, and the thermoelectric power generation unit which moves the one of the thermoelectric power generation unit can be used. The device is placed in the steel embryo cooling device and the steel embryo cutting device of the steel embryo casting machine, the steel embryo cooling device delivery side, the steel embryo cutting device, the steel embryo cutting device delivery side, and the rolling line holding furnace, Any one of the induction furnace, the rolling mill, and the roller table before the furnace is maintained, after the furnace is maintained, before the induction furnace, after the induction furnace, before the rolling press, after the rolling mill, on the roller table, and between the roller tables position.

Moreover, in the manufacturing equipment line of the present invention, the pair of pipes and the like may be included. The thermoelectric power generation unit that arranges the thermoelectric power generation unit and the moving means for moving the one of the thermoelectric power generation units is placed at any one of the steel sheet and the pipe transport path from the heating furnace to the stretch tube machine.

That is, in the present invention, the thermoelectric power generation unit may be disposed to face at least one of the heat sources.

Further, in the present invention, the thermoelectric power generation device having a plurality of thermoelectric power generation units may be provided, and in the case where the plurality of thermoelectric power generation units are provided as described above, the moving means may be provided in at least one of the thermoelectric power generation units.

Here, the thermoelectric generation device according to the present invention has a moving means for realizing movement of one of the thermoelectric power generation units, and the distance between the thermoelectric power generation unit and the heat source can be controlled by the moving means. The distance control is preferably performed using a power cylinder.

As the moving means, as shown in FIGS. 1 and 3, a thermoelectric power generation unit is integrally moved up and down. Further, the thermoelectric power generation unit can be used to move forward and backward and left and right without any problem.

Further, the moving means may be a moving means for controlling the sliding type as shown in FIG. 4 or the opening and closing type as shown in FIG. Further, in a place where the temperature variation is small, the moving means for controlling the distance may be, for example, a thermoelectric power generation unit fixed by bolts or a thermoelectric power generation unit fixed by a sliding bolt, and moved by loosening the bolt and The manual movement means such as moving the thermoelectric power generation unit by tightening it again.

Further, in the case of the shower cooling as described above, the shower cooling device itself may be moved integrally with the thermoelectric power generation unit or the like, or the shower cooling device itself may not be moved integrally with the thermoelectric power generation unit or the like.

In the present invention, in order to adjust the distance of the thermoelectric generation unit or to operate the thermometer, part or all of the electric power converted by the thermoelectric generation device may be used. More It is preferable to include a power prediction means for predicting whether or not to cause the thermoelectric power generation unit to operate based on the generated electric power and the electric power consumption, respectively, including the electric power prediction means for predicting the electric power generated by the thermoelectric generation device and the electric power consumption of the thermoelectric power generation unit.

In other words, when it is predicted that the electric power for operating the thermoelectric power generation unit is smaller than the generated electric power by predicting the generated electric power, the thermoelectric power generation unit may not be operated. Further, when it is predicted that the heat resistance temperature of the thermoelectric element is exceeded, the thermoelectric power generation unit is evacuated until it is at least the heat resistant temperature.

Further, the operation determining means can determine whether or not the self-generated region can be moved to the non-power generating region based on the output of the thermoelectric power generating unit.

In the present invention, the heat source utilizes radiation from a steel ore in a hot rolling line, or radiation of a steel in a continuous casting line, radiation in a hot rolling plate in a casting and rolling apparatus, a pipe in a forged line, or the like. The heat generated by the radiation.

The hot rolling line includes a heating furnace, a roughing mill, a finishing mill, and a coiler as shown in FIG. In addition, the hot rolling step refers to a steel block (steel blank) of about 20 to 30 tons which is heated to about 1000 to 1200 ° C in a step before the hot rolling line or in a heating furnace, and a rough rolling mill is used to make a rough rolled steel strip, and then utilized. The finishing mill is made into a plate thickness: a step of hot-rolled steel strip of about 1.2 to 25 mm. Further, in the present invention, the steel material in the finishing mill means a hot rolled steel strip.

The continuous casting device includes a steel drum, a feeding tank, a mold, a steel embryo cooling device, a correction roller, and the like, and a steel blank cutting device as shown in FIG. Furthermore, in the figure, 21 is a steel drum, 22 is a feeding tank, 23 is a casting mold, 24 is a steel embryo cooling device, 25 is a roller group such as a correction roller, 26 is a steel blank cutting device, 27 is a thermometer, and 28 is a thermometer. The thermoelectric generation device, and 29, is a starter bar.

The continuous casting step begins when the molten steel produced by the blast furnace is placed in a steel ladle after secondary refining and conveyed to the uppermost portion of the continuous casting machine. Then, the steel liquid from The uppermost steel drum is injected into the feed tank. Thereafter, the molten steel is injected into the mold from the bottom of the feed tank, and the molten steel contacting the mold starts to solidify from the surface, and becomes a steel embryo through the cooling step. Further, it further includes a cutting step of cutting the steel blank, and the like.

The casting and rolling apparatus are shown in Fig. 8. First, a casting machine 33 including a feeding tank 31 and a casting mold 32 is disposed for casting a steel slab, and then a holding furnace 34, an induction furnace 35, a roughing mill 36, a finishing mill 37, a water cooling device 38, and a coiler 39 are disposed.

The holding furnace disposed after the casting machine can be a normal gas burning furnace. The order of configuration of the holding furnace and the induction furnace can also be replaced. Further, a heating furnace used in the case of batch rolling can also be used.

Further, a shearing machine 40 is disposed between the casting machine 33 and the holding furnace 34, and a shearing machine 41 is disposed behind the roughing mill 36, and a strip-shaped steel plate shearing machine 42 is disposed behind the finishing mill 37.

The pipe production line (forging line) is subjected to a series of steps shown in Fig. 9, and the steel sheet 51 supplied in the form of a hot rolled steel coil is heated to about 1250 ° C by the heating furnace 53, and then forged into a tubular shape by a forming forging machine 54. Then, the pipe 52 of a desired diameter is formed by the heat reducing pipe 55, and is cut into a desired length by the rotary heat saw 17, and then cooled by the cooling bed 57, corrected by the straightener 59, and further, Perform the chamfering of the end of the tube. Furthermore, 58 is a filter.

In the present invention, in addition to the moving means, it may have a temperature (hereinafter, simply referred to as a temperature of a steel or the like) based on the steel preform or the like (including a position opposite to a position of the thermoelectric power generation unit and a temperature suitable for measurement) / or a thermoelectric power generation unit provided by the output of the thermoelectric power generation unit. As shown in FIG. 6 above, the thermoelectric power generation unit can be disposed at any position from the finish rolling mill to the hot-rolled steel strip transfer path from the rough rolling mill according to the temperature of the steel preform or the like and/or the output of the thermoelectric power generating unit. (A to E in the figure), and the heat source in actual operation According to the temperature fluctuations, etc., efficient power generation is performed.

Further, in the present invention, in addition to the moving means, as shown in Fig. 7, it may have a temperature according to any one of the steel slabs (including the position opposite to the thermoelectric power generation unit and the vicinity of the suitable temperature measurement) ( Hereinafter, the thermoelectric power generation unit provided for the output of the thermoelectric power generation unit is simply referred to as the temperature of the steel preform. Moreover, the thermoelectric power generation unit can be disposed from the delivery side of the steel embryo cooling device to the upstream of the steel blank cutting device, below the steel blank cutting device, and according to the temperature of the steel preform and/or the output of the thermoelectric power generating unit. At any position (F in the figure) on the delivery side of the steel blank cutting device, efficient power generation is performed in accordance with the temperature fluctuation of the heat source in actual operation.

Further, in the present invention, in addition to the moving means, as shown in FIG. 8, it may have a temperature according to a steel blank or the like (including the position opposite to the thermoelectric power generation unit and the vicinity of the suitable temperature measurement) (hereinafter, simply referred to as steel). A thermoelectric power generation unit provided by the temperature of the embryo or the like and/or the output of the thermoelectric power generation unit. Further, the thermoelectric power generation unit can be disposed on the delivery side of the steel embryo cooling device in the steel embryo cooling device and the steel blank cutting device of the steel blank casting machine according to the temperature of the steel or the like and/or the output of the thermoelectric power generation unit. , in the steel blank cutting device and on the delivery side of the steel cutting device (Fig. 8G), and in the vicinity of the holding furnace or induction furnace of the rolling line and on the transfer table (Fig. 8H), near the roughing mill (Fig. 8I), and finish rolling The former rust removing device corresponds to any one of the upstream side (Fig. 8J), the finishing mill (Fig. 8K), and the hot-rolled sheet conveying path (Fig. 8L), and corresponds to the temperature change of the heat source in actual operation. , for efficient power generation.

Further, in the present invention, in addition to the above-described moving means, it may have a temperature according to any of the above-described pipes (including the position opposite to the thermoelectric power generation unit and the vicinity of the suitable temperature measurement) (hereinafter, A thermoelectric power generation unit that is simply referred to as a temperature of a pipe or the like and/or an output of a thermoelectric power generation unit. As shown in FIG. 9, the thermoelectric power generation unit can be set to self-forging by the temperature of each pipe or the like and/or the output of the thermoelectric power generation unit. Efficient power generation is performed in accordance with any of the steel plate transfer path or the pipe transfer path (for example, M and N in the figure) from the heating furnace of the pipeline to the forging machine, in accordance with the temperature fluctuation of the heat source in actual operation.

Furthermore, the thermoelectric power generation device (thermoelectric power generation unit) of the present invention is disposed in any device line, and may be disposed under the heat source, and is not limited to the heat source, and the installation portion is not limited to one. Can be plural.

Moreover, it may be provided on the upstream side of the steel blank cutting device with the lifting function, or may be provided below the steel blank cutting device. Further, in terms of not increasing the structure of the apparatus, it is preferably attached to the lower side of the so-called starter bar for recovering the steel for adjustment.

In order to maintain a high operating rate of the thermoelectric power generation unit, it is preferable to provide a thermoelectric power generation unit in a place where the time is close to the heat source. For example, in the hot rolling equipment line, the steel sheet discharged from the heating furnace reaches the conveying table until the rough rolling mill (Fig. 6A), and the feeding side or the sending side of the scale removing device which is formed on the surface during heating or the like is removed. Or the vicinity of the finishing press for adjusting the width of the steel blank, near the roughing mill (Fig. 6B), or before the finishing mill and before the finish rolling of the rough rolled steel strip, the upstream side of the finer removing device (Fig. 6C) ), in the finishing mill (Fig. 6D), on the hot-rolled steel strip transport path (Fig. 6E).

Further, in the position where the rough rolled steel bar is conveyed from the roughing mill to the finish rolling mill before the finish rolling mill, there is a portion where the transfer table is covered by the outer cover to suppress a decrease in the temperature of the rough rolled steel strip. The outer cover can be opened and closed, such as closing the outer cover when the temperature is lowered, and the method of opening the outer cover when the rolling press is not used is a common method.

The thermoelectric power generation unit of the present invention can be attached to the above-described outer cover.

Here, the temperature of the rough-rolled steel bar is about 1100 ° C, and the heating means and the heat-dissipating means are provided for cooling the one side to ensure the temperature difference required for power generation, whereby the power generation efficiency of the thermoelectric unit is effectively improved.

In the steel sheet manufacturing equipment line, as a place where the heat source is close to the heat source, the steel sheet discharged from the heating furnace reaches the transfer table until the rough rolling mill (Fig. 8H), and the oxidation generated on the surface during heating is removed. The vicinity of the finishing press or the delivery side of the skin descaling device (not shown), or the finishing press for adjusting the width of the steel blank (not shown), near the roughing mill (Fig. 8I), or before the finishing mill The coarse-rolled steel strip is relatively upstream of the rust removing device before the finish rolling (Fig. 8J), the finishing mill (Fig. 8K), and the hot-rolled sheet conveying path (Fig. 8L).

Further, in the steel sheet manufacturing equipment line, the portion where the rough-rolled steel strip is conveyed from the roughing mill to the finishing mill before the finishing mill also has a portion covering the conveying table by the outer cover to suppress the temperature drop of the rough-rolled steel strip. The outer cover can be opened and closed, such as closing the outer cover when the temperature is lowered, and the method of opening the outer cover when the rolling press is not used is a common method.

The thermoelectric power generation unit of the present invention can be attached to the above-described outer cover.

Here, the temperature of the rough-rolled steel bar is about 1100 ° C, and the power generation efficiency of the thermoelectric unit is effectively improved by providing a heat-dissipating means for cooling the one side to ensure the temperature difference required for power generation.

When the heat source and the thermoelectric power generation device maintain a small space, electricity is generated, and when the heat source is not in the vicinity of the thermoelectric power generation device, the efficiency of self-heating to electrical is deteriorated. However, in this case, the power conditioner or the like is used to The system is electrically connected and can be used without problems. Further, when it is used as an independent power source, it can be used in the same manner as in solar power generation, using fluctuations in power generated by battery absorption.

Since the steel blank as the heat source is always present at the position from the delivery side of the steel embryo cooling device to the steel blank cutting device, the output of the thermoelectric power generation becomes large. Therefore, the installation position as the thermoelectric generation device is preferable.

On the other hand, on the delivery side of the steel blank cutting device, during the period from the cutting of the steel embryo to the cutting of the next steel embryo, the ratio of the vicinity of the thermoelectric power generation unit to the vicinity of the thermoelectric power generation unit is intermittent, and the thermoelectric power generation output is made. The amount is reduced. Therefore, for example, it is preferable to increase the output of the thermoelectric power generation so that the steel preform after the cutting and the continuous casting speed are the same, and the steel embryo as the heat source is located in the vicinity of the thermoelectric power generator. When the conveyance speed of the steel preform is V ₁ and the continuous casting speed is V ₀ , it is sufficient to satisfy V ₁ ≧V ₀ , and more preferably, it is a condition of V ₀ ≦V ₁ ≦1.1×V ₀ . If the steel embryo is passed through the vicinity of the thermoelectric power generation device and the steel blank transfer speed is increased to the previous process level for transportation, the influence on the flow can be neglected, and the efficient thermoelectric power generation can be performed. Therefore, it is preferable in this way. Carry out the transfer. Further, in the present invention, the vicinity of the thermoelectric power generation device means that the position of the steel preform cutting device is reduced to about 90% by the amount of heat received by the thermoelectric power generation unit from the steel embryo. The reason is that if the heat is less than 90%, efficient thermoelectric power generation cannot be performed.

Further, a thermometer can be provided on the upstream side of the thermoelectric generation device, and the distance between the thermoelectric generation unit and the steel embryo can be controlled based on the measured value of the thermometer. By having such a function, even when the replacement of the product lot is equal to a change in the temperature of the steel or the like, the thermoelectric power generation can be appropriately performed in accordance with the temperature fluctuation or the like, and as a result, the efficiency of the thermoelectric power generation is improved.

Further, the thermometer is preferably a non-contact type such as a radiation thermometer. When the line is intermittently stopped, the thermocouple may be contacted and measured every time it is stopped. As the frequency of the measurement, it is preferable that the thermometer is placed on the line and the measurement is automatically performed periodically, and when the manufacturing conditions are changed, the operator can perform the measurement manually.

Further, when the relationship between the temperature of the heat source and the optimum temperature of the thermoelectric power generation is obtained in advance, the thermoelectric power generation unit shown in, for example, FIGS. 1 and 3 can be appropriately controlled in accordance with the measured value of the thermometer. 1 The distance from the heat source 5.

Further, the distance between the thermoelectric generation unit and the heat source can be controlled according to the output of the thermoelectric power generation unit. 10 shows the distance from the steel material to the thermoelectric power generation unit and the rated output when the temperature of the steel material is 850, 900, and 950 ° C and the interval between the thermoelectric power generation modules in the thermoelectric power generation unit is 70 mm. The result of investigating the graph of the relationship between the power generation output ratio when the power generation output ratio is set to 1.

By determining the relationship as shown in FIG. 10 described above, the distance between the steel material and the thermoelectric power generation unit can be adjusted according to the output of the thermoelectric power generation unit. In the present invention, the heat source is made of a steel or the like instead of the steel material, and the distance between the thermoelectric power generation unit and the steel or the like is adjusted so that the output of the thermoelectric power generation unit becomes large. In this case, the actual measurement output may be used, or an output value predicted based on the temperature of the steel or the like may be used.

Moreover, in the case of forging the pipe line, FIG. 11 shows the distance from the pipe to the thermoelectric generation unit and the rated output when the thermoelectric power module interval and the temperature of the pipe in the thermoelectric power generation unit are used as parameters. When the power generation output ratio is set to 1, the relationship between the power generation output ratio and the power generation output ratio is investigated. The distance between the thermoelectric power generation unit and the pipe material is 150 mm, and the pipe material is used because the temperature of the pipe material is 1150 ° C. When the temperature is 1000 ° C, control is performed to move so that the above distance is 60 mm, and thermoelectric power generation with optimum efficiency can be performed.

By determining the relationship as shown in FIG. 11 described above, the distance between the pipe and the thermoelectric power generation unit can be adjusted according to the output of the thermoelectric power generation unit. In the present invention, the heat source may be a steel plate instead of the pipe material, and the distance between the thermoelectric power generation unit and the steel sheet may be adjusted such that the output of the thermoelectric power generation unit becomes larger. Further, when the distance is adjusted, the actual measurement output may be used, or an output value predicted based on the temperature of the pipe or the like may be used.

As described above, the output of the thermoelectric power generation unit is preferably set so as to be a rated output, and it is necessary to set the upper limit of the heat-resistant temperature of the thermoelectric power generation unit. So as not to damage the thermoelectric elements. When considering the upper limit of heat resistance, the power generation output ratio can be appropriately reduced, and it is preferably lowered to about 0.7. Since the output is proportional to the square of the temperature difference, the above-mentioned power generation output ratio temperature difference is equivalent to about 80% of the temperature difference at the rated output.

In the case where the thermoelectric power generation unit is disposed opposite to the steel or the like, the distance between the heat source and the thermoelectric power generation unit is not particularly limited, and is preferably in the range of about 30 to 800 mm, and preferably the high temperature side of the thermoelectric element. The temperature difference from the low temperature surface side is maintained at a high level, and the output is stabilized at a high level. Here, it is preferable that the output is stabilized at a high level to be about 0.5 of the target output, and more preferably about 0.7. Since the output is proportional to the square of the temperature difference, the power generation output ratio temperature difference is equivalent to about 70% and 80% of the temperature difference at the rated output. Furthermore, even if the upper portion is more open than the thermoelectric power generation unit, there is no problem.

In the present invention, the position of the thermoelectric power generation unit may be set in advance according to the size or variety of the heat source. Further, the position of the thermoelectric power generation unit may be set in advance based on the output power performance of each thermoelectric power generation unit corresponding to the size or the size. Further, it is also possible to preset the installation location of the thermoelectric power generation unit in accordance with the size and the variety, based on the output power performance of each thermoelectric power generation unit and/or the predicted output power predicted by temperature or the like. Further, when the device is introduced, the distance between the thermoelectric power generation unit and the heat source or the arrangement of the thermoelectric power generation module in the thermoelectric power generation unit may be determined in advance.

For example, if the size of the steel blank in the hot rolling equipment is 900 mm in width and 1200 ° C in temperature, the distance between the thermoelectric power generation unit and the steel embryo is 720 mm, and the size of the steel embryo is 900 mm in width. In the case of 1100 ° C, the thermoelectric power generation with the best efficiency can be performed by moving the above distance to 530 mm.

Also, if the size of the steel embryo is 900mm, the temperature is 1000°C. In the case of the case, the distance between the thermoelectric power generation unit and the steel embryo is controlled to be 640 mm, and when the size of the steel embryo is 900 mm and the temperature is 950 ° C, the above distance can be controlled to 530 mm, and the efficiency can be optimized. Thermoelectric power generation.

If the temperature of the hot-rolled steel strip in the hot rolling equipment is 1000 ° C, the distance between the thermoelectric power generation unit and the hot-rolled steel strip is 280 mm, and when the temperature of the hot-rolled steel strip is 950 ° C, When the distance is 90mm to move it, the most efficient thermoelectric power generation can be performed.

Further, when the temperature of the hot-rolled sheet in the steel sheet manufacturing facility is 1000 ° C, the distance between the thermoelectric power generation unit and the hot-rolled sheet is 280 mm, and when the temperature of the hot-rolled sheet is 950 ° C, When the above distance is 90 mm and controlled to move, the most efficient thermoelectric power generation can be performed.

In the present invention, as shown in FIG. 12, the thermoelectric power generation unit can be disposed at a distance corresponding to the temperature of the heat source other than the pipe material and/or the output of the thermoelectric power generation unit. The reason for this is that, by setting the setting state, the moving distance or the number of times of the thermoelectric power generating unit can be reduced as compared with the case where the thermoelectric power generating unit is provided only flatly, and the power cost can be reduced.

For example, if the heat source in the central portion of FIG. 12 is a steel or rough rolled steel strip, the distance from the unit is set to 720 mm, and the distance between the ends of the web is controlled to be 640 mm, and then moved. When the heat source is a hot-rolled steel strip, the distance from the unit is set to 280 mm, and the distance between the ends of the web is controlled to be 200 mm, so that the thermoelectric power generation can be performed efficiently.

Further, in the present invention, when the heat source is a pipe material 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 material or the output of the thermoelectric power generation unit. The reason is: by setting the setting state, and only flatly Compared with the case of setting the thermoelectric power generation unit, the moving distance or the number of times of the thermoelectric power generation unit can be reduced, and the power cost can be reduced.

For example, in the central portion of Fig. 13, in the steel plate transfer path in which the pipe is replaced with a steel plate, if the distance between the unit and the steel plate is controlled to be 90 mm, and the distance is controlled to 60 mm at the end portion, the thermoelectric generation can be efficiently performed. . On the other hand, in the pipe conveyance path, if the distance between the unit and the pipe is controlled to be 120 mm, and the distance (the temperature reduction range in the pipe) is controlled to be 60 mm, the thermoelectric generation can be performed efficiently.

When the temperature in the width direction of the steel or the like (the direction perpendicular to the advance direction of the steel ore) is measured from the end of the steel or the steel plate, the length of the plate is about twice the thickness of the plate ( In the present invention, the term "end end portion" is often sharply lowered. Therefore, it is preferable to control the thermoelectric power generation unit to move it in advance. The reason for this is that at the above-mentioned web end portion, it is highly likely that the electric power obtained with respect to the electric power for moving the thermoelectric power generation unit is small.

According to the embodiment in which the output of the thermoelectric power generation unit or the like is provided, since the thermoelectric power generation unit can be formed in a shape of one half of an ellipse, the behavior of the heat flow is changed as compared with the case where the thermoelectric power generation unit is not provided, so that the heat retention effect is excellent. As a result, the thermoelectric power generation device having excellent heat energy recovery efficiency can be obtained.

In addition, in the present embodiment, it is possible to provide a thermoelectric power generation device by additionally controlling the distance between the thermoelectric power generation unit and the steel or the like, and even if there is a temperature change or the like of the heat source during actual operation, It can also be handled more efficiently.

In the thermoelectric power generation device of the present invention, as shown in FIG. 14, the thermoelectric power in the thermoelectric power generation unit can be made at a high temperature portion with respect to the low temperature portion according to the temperature, temperature distribution, form factor, and/or output of the thermoelectric power generation unit of the heat source. The power module is denser in configuration. At this time, it is preferable to set the output to be stable at a high level. Here, make the output stable to high The bit is preferably set to about 0.5 of the target output, and more preferably set to about 0.7. Since the output is proportional to the square of the temperature difference, the power generation output ratio temperature difference is equivalent to about 70% and 80% of the temperature difference at the rated output.

Moreover, the device is also suitable for continuous lines with almost no temperature changes. The reason for this is that the power generation of the thermoelectric power generation unit can be made by comparing the temperature distribution of the heat source and/or the output of the thermoelectric power generation unit to the above-described arrangement density as compared with the case where the thermoelectric power generation unit is provided only at regular intervals. Optimize efficiency.

As a specific example of changing the arrangement density, the thermoelectric power generation module in the thermoelectric power generation unit is closely arranged in the upper portion (central portion) of the heat source, that is, in the high temperature portion, and is formed at the end portion of the steel preform or the like, that is, In the low temperature portion, the thermoelectric power generation modules in the thermoelectric power generation unit in the width direction are sparsely arranged, and the thermoelectric power generation device that efficiently increases the power generation efficiency of each of the thermoelectric power generation units can be used.

For example, in FIG. 14, when the heat source is a steel or rough rolled steel bar, when the temperature of the steel material is 1200 ° C and the distance between the thermoelectric power generation unit and the steel material is 640 mm, the thermoelectric power generation in the central portion of the unit is performed. The configuration of the module is set to 55mm interval, the end of the width is set to 60mm interval, and when the heat source is hot-rolled steel strip, and the steel temperature is 1000°C, and the distance between the thermoelectric power generation unit and the steel material is 280mm, the center of the unit is used. Some of the thermoelectric power modules are arranged at intervals of 60 mm, and the end portions are set at intervals of 63 mm, so that thermoelectric power generation can be performed efficiently.

In Fig. 14, if the steel source with a heat source of 1000 ° C and the distance between the steel embryo and the thermoelectric power generation unit is 640 mm, the arrangement of the thermoelectric power generation module in the central portion of the unit is set to 55 mm intervals, and the end of the width is set to At 60 mm intervals, thermoelectric power generation can be performed efficiently.

In Figure 14, when the heat source is a steel or rough rolled steel strip, The configuration of the thermoelectric power module in the central part of the unit is set to 55 mm interval, and the end of the unit is set to 60 mm. Further, when the heat source is a hot rolled plate, the configuration of the thermoelectric power module in the central portion of the unit is set to 60 mm. When the width of the end portion is set to 63 mm, thermoelectric power generation can be performed efficiently.

Further, the thermoelectric power generation module in the thermoelectric power generation unit shown in FIG. 10 may be used as a parameter, and the output of the thermoelectric power generation unit may be investigated, and the result of the investigation may be used as a thermoelectric power generation module interval for setting the present invention. Use for the information.

In the above embodiment, the configuration of the thermoelectric power generation module in the unit can be made thinner or denser, and the unit itself can be set to be thinner or denser.

When the heat source is used as a pipe material or the like, the thermoelectric power generation module in the thermoelectric power generation unit is closely arranged at the upper portion (central portion) of the pipe material or the like, that is, at the high temperature portion, at the end portion of the pipe material or the like, that is, In the low temperature portion, the thermoelectric power generation modules in the thermoelectric power generation unit in the width direction are sparsely arranged, and the thermoelectric power generation device that efficiently increases the power generation efficiency of each of the thermoelectric power generation units can be used.

For example, in Fig. 15, when the heat source is a pipe material, thermoelectric power generation can be performed efficiently when the arrangement of the thermoelectric power modules in the central portion of the unit is 65 mm intervals and the ends are at intervals of 80 mm. Further, the thermoelectric power generation module in the thermoelectric power generation unit shown in FIG. 11 may be used as a parameter, and the output of the thermoelectric power generation unit may be investigated, and the result of the investigation may be used as a thermoelectric power generation module interval for setting the present invention. Use for the information.

In the above embodiment, the configuration of the thermoelectric power generation module in the unit can be made thinner or denser, and the unit itself can be set to be thinner or denser.

Further, the above-described change in the arrangement density is particularly suitable for the case where the upper direction of the steel or the like is not allowed in the apparatus. Furthermore, this embodiment can also be further added A means for controlling the distance between the thermoelectric power generation unit and the steel or the like, and even if there is a temperature change of the heat source in actual operation or the like, the temperature of the thermoelectric power generation unit and the steel embryo are appropriately controlled, and the efficiency is further efficiently Power generation.

The output of the thermoelectric power generation unit in the present invention means changing the position according to the temperature of the heat source or changing the density of the thermoelectric power module, and also includes the following: when the thermoelectric power generation unit is installed at the initial position, etc. In the case of a difference in output between cells, the cell with the smaller output is moved to the position where the output becomes larger, and specifically, the correspondence with the heat source is closely connected and set. Further, the temperature system includes not only the temperature of the heat source but also the temperature distribution or the shape coefficient of the heat source.

The thermoelectric power generator of the present invention may further include a heat reflecting material that collects heat as shown in Figs. 16(A) and (B) or Figs. 17(A) and (B). In the figure, 100 is a heat reflective material. By using a heat reflective material, the heat collecting effect of each thermoelectric power generation unit can be improved, and efficient thermoelectric power generation can be performed.

In terms of heat collecting efficiency, the heat reflecting material is preferably disposed on both sides of the heat source 5 and the heat source 52 as shown in Fig. 16 (A) or Fig. 17 (A) (Fig. 16 (A), steel embryo, etc. The forward direction is from the inner side of the drawing toward the front side).

The shape of the heat reflective material in the present invention may be a flat surface, or a curved surface, and a V-shaped or U-shaped cross section. Furthermore, the heat reflective material may have a planar to concave surface, but since the aberration in the focus changes due to the incident angle of the concave heat reflective material, it is preferable to minimize the aberration with respect to a predetermined incident angle. In a manner, a heat reflective material or a plurality of heat reflective material surface groups are disposed to have an optimum heat reflecting material shape (curvature).

In the present embodiment, since heat can be collected in any part of the thermoelectric power generation unit as shown in FIG. 16 or FIG. 17, there is an advantage that the allowable degree of installation of the thermoelectric power generation device is further improved as described below.

For example, as shown in FIG. 16(A) or FIG. 17(A), heat is concentrated to the thermoelectric power generation unit with good balance, even if a thermoelectric power generation device that places the thermoelectric power generation unit at a previously known installation position is used. The power generation efficiency of each thermoelectric power generation unit is optimized. Further, as shown in FIG. 16(B) or FIG. 17(B), heat energy concentrated at an arbitrary portion can be irradiated to the thermoelectric power generation unit. An advantage of this embodiment is that the thermoelectric power generation unit can be moved and the heat reflective material 100 can be moved even when the installation area of the thermoelectric power generation unit is limited or when a large-area thermoelectric power generation unit cannot be obtained. Move it properly and perform efficient thermoelectric power generation. Further, the heat reflecting material 100 can be changed by setting the driving portion and changing the angle in accordance with an external signal.

Therefore, the thermoelectric power generating unit provided according to the temperature of the heat source and/or the output of the thermoelectric power generating unit of the present invention includes not only the distance-set unit but also the distance or angle which can be made by the heat-reflecting material as described above. The unit of change.

In addition, as long as the heat-reflecting material in the present invention can reflect heat energy (infrared rays), there is no particular regulation, and it is possible to appropriately select a metal such as iron after mirror polishing or a heat-resistant brick in consideration of the installation place and the procurement cost of the article. Those who have achieved tin plating and the like.

Further, the installation place of the heat reflective material 100 may be considered on both sides of the heat source of FIGS. 16(A) and (B) or FIGS. 17(A) and (B), or may be corresponding to the installation position of the thermoelectric power generation unit. Set to the lower or upper part of the heat source.

18(A) and (B) or Figs. 19(A) and (B) show examples of installation of the thermoelectric generation unit of the present invention.

The thermoelectric power generation unit of the present invention may be formed to surround the outer periphery of the steel or the like (heat source 5) as shown in Figs. 18(A) and (B), or as shown in Figs. 19(A) and (B). It is generally assumed to surround the outer peripheral portion of the pipe or the like (heat source 52).

In the present invention, the thermoelectric power generation unit is disposed on the side or below the heat source. In the case of convection due to heat from the heat source, it is preferable to set the distance between the thermoelectric power generation device and the heat source: ds and the distance from the upper side: du to satisfy the relationship of ds≦du.

Therefore, if the distances illustrated in FIGS. 18 and 19: a and c correspond to the above distance: du, the distances: b and d correspond to the above distance: ds. Furthermore, b denoted by the same symbol in the figure may be different distances, and it is important that each distance satisfies the relationship of du and ds.

In the present invention, in particular, in the case of the thermoelectric power generation unit surrounding the outer periphery of the steel or the like as described above, the distance between the heat source and the thermoelectric power generation unit can be appropriately changed even in the same apparatus.

When the thermoelectric power generation unit is not disposed on the entire surface, if the plate (insulation plate) is provided so that the heat of the heat source is not released to the outside, efficient thermoelectric power generation can be performed. The material of the heat insulating plate is not particularly limited as long as it is a metal (alloy) such as iron or a nickel-chromium alloy or a ceramic, and is generally used as a heat insulating plate for a high-temperature object, and is not particularly limited, and preferably has a higher emissivity of the plate. Small, reducing the absorption of radiant heat from the heat source by the plate, and causing the radiant heat from the heat source to face the thermoelectric power generation unit.

As shown in Fig. 18(A) or Fig. 19(A), the thermoelectric generation device of the present invention can be provided with at least one opening to evacuate the thermoelectric generation device using the moving means.

The opening is usually covered by the thermoelectric power generation unit, and when the operation is started, the thermoelectric power generation unit is moved from the opening, and the steel or the like is stably conveyed without causing damage to the thermoelectric generation device. Furthermore, in this embodiment, a plurality of thermoelectric power generators may be used to surround the heat source.

In the present invention, by using the above-described moving means, the thermoelectric power generation unit and the thermoelectric power generation unit can be moved in a non-steady state such as a steel or the like, a hot-rolled sheet, or the like, a front end or a rear end of the pipe or the like. The thermal power generation device of the moving means moves from the power generation area to the retracted position as a whole, or moves to the power generation area again to prevent the steel plate from being high. The physical/mechanical damage of the device caused by the degree of change or the like. Thereby, not only the thermoelectric power generation unit can be protected from damage due to the heat-resistant temperature, but also the thermoelectric power generation device can be protected from physical/mechanical damage.

As shown in Fig. 1, in order to prevent the heat source from colliding with the thermoelectric power generator, the bypass used for the movement of the steel or the like is increased by 1000 mm or more, as shown in Fig. 1 . State. Subsequently, when the height of the heat source fluctuates, the thermoelectric power generating device is brought into a state close to the heat source as shown in Fig. 3 by moving the device. Thereby, it is apparent that efficient thermoelectric power generation can be achieved compared to the prior art. Further, in the case where the thickness is relatively thick or the continuous material is continuous and the height of the heat source fluctuates little, the thermoelectric generation device is brought into a state of being continuously close to the heat source. The heat source and the thermoelectric power generating device are preferably separated by more than 10 mm.

Since the equipment cost also increases if the moving distance becomes large, it can be moved to a distance of 3000 mm when moving up and down. Preferably, the retraction distance is from 10 mm to 1000 mm.

As described above, the example in which the thermoelectric power generator is moved in the vertical direction has been described. When the vehicle is moved laterally or retracted, as shown in FIG. 4, the sliding type moving means is used to move to the retracted position. The moving distance is such that the entire thermoelectric power generation device is retracted from the width of the transport path. For example, in a steel blank casting machine, it is a device that can move about 3,500 mm and can move about 2000 mm in a rolling line having a narrower product width. Further, in the rolling line of the thick plate having a wide width, it is necessary to retreat by 5 m or more. Further, in the case where the size of the product such as a pipe is small, it is sufficient to make the retracting movement distance of about 300 mm.

Next, when using the opening and closing type moving means as shown in FIG. 5, as shown in the figure, it is necessary to open and close the thermoelectric power generating device and move it to a space of an angle of 90°. It can be opened and closed in the range of 90° to 180°. Since the weight of the thermoelectric power generating device itself is also present, it is preferable to reverse 180°, and the device is stabilized at the time of retraction.

A distance sensor may also be installed on the upstream side and/or the downstream side of the thermoelectric power generation device, and the position of the thermoelectric device may be fed forward and/or feedback controlled by the value of the distance sensor.

Further, the above embodiments can be arbitrarily combined.

For example, when only the distance is adjusted to obtain an optimum thermoelectric power generation efficiency, the thermoelectric power generation unit may be in the form of an elliptical arc having a large curvature, or an embodiment of the heat reflective material may be used in combination, and the curvature may be alleviated. .

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

The thermoelectric power generation method of the present invention can be as shown in FIG. 6, and includes a roughing mill that rough-rolls a steel blank to form a rough-rolled steel strip, and a hot rolling mill that performs finish rolling on the rough-rolled steel strip to form a hot-rolled steel strip. In the rolling equipment line, a thermoelectric generation unit including a thermal power generation unit disposed opposite to at least one of a steel blank, a rough-rolled steel strip, and a hot-rolled steel strip, and a moving electric device that moves the one of the thermoelectric power generation unit are disposed. Any one of the steel preform transfer path, the rough rolling mill, the rough rolling steel strip transfer path, the finishing mill, and the hot rolled steel strip transfer path from the rough rolling mill to the hot rolled steel strip transfer path.

Moreover, the thermoelectric power generation method of the present invention can be used as a continuous casting device including continuous casting of hot steel blanks, a steel embryo cooling device for cooling hot steel embryos, and a hot steel blank cutting device for cutting hot steel embryos, as shown in FIG. In the continuous casting equipment line, a thermoelectric power generation unit including a thermal steel power generation unit disposed opposite to the hot steel embryo, and a thermoelectric power generation unit that moves the one of the thermoelectric power generation unit are disposed on the steel embryo cooling device delivery side to the steel blank cutting One of the upstream of the device, the lower side of the steel blank cutting device, and the steel blank cutting device delivery side.

Further, the thermoelectric power generation method of the present invention can be included in a steel sheet and a hot rolled sheet in a steel sheet manufacturing equipment line including a steel blank casting machine and a rolling line as shown in FIG. The thermoelectric power generation unit that is disposed opposite to at least one of the thermoelectric power generation unit and the moving means for moving the thermoelectric power generation unit is disposed in a steel selected from the steel embryo cooling device and the steel blank cutting device of the steel blank casting machine The delivery side of the embryo cooling device, the steel blank cutting device and the steel blank cutting device feeding side, and the holding furnace in the rolling line holding furnace, the induction furnace, the rolling press, and the roller table, before the furnace is maintained, and the induction furnace At least one of the previous, after the induction furnace, before the rolling press, after the rolling press, on the roller table, and between the roller tables.

Further, in the thermoelectric power generation method of the present invention, as shown in FIG. 9, in the forging pipe line, a thermoelectric power generation unit that is disposed to face at least one of a pipe material and the like, and a body of the thermoelectric power generation unit may be moved. The thermoelectric power generation device of the moving means is installed at any one of the steel plate and the pipe transport path from the heating furnace to the stretch tube machine.

Further, in the thermoelectric generation method of the present invention, any one of the thermoelectric power generators of any of the forms shown in Figs. 1, 3 to 5, and 12 to 19 is appropriately selected or used in combination. That is, the thermoelectric power generation device having a moving means capable of realizing movement of one of the thermoelectric power generation units is basically configured, and the thermoelectric power generation unit can be provided according to the temperature of the heat source and/or the output of the thermoelectric power generation unit, or according to the heat source. The temperature and/or the output of the thermoelectric power generation unit is set closer to the low temperature portion than the high temperature portion, or the thermoelectric power generation unit is compared with the low temperature portion and the high temperature portion according to the temperature of the heat source and/or the output of the thermoelectric power generation unit. The thermoelectric power generation module is closely arranged, or includes a heat reflective material, or surrounds the periphery of the heat source, or at least one opening is provided for the thermoelectric power generation device to retreat.

Further, in the implementation, the thermoelectric power generator of the above-described plural embodiments may be used in combination.

[Examples] [Example 1]

In order to confirm the effect of the thermoelectric power generator of the present invention, a thermoelectric power generation unit having a configuration of FIG. 2 and having an area of 1 m ² was used, and the thermoelectric power generation unit was placed at the position of C in FIG. Test of the output of the power generation unit.

In the first invention, the following test was carried out: when the through-plate of the rough-rolled steel strip was started, the distance between the thermoelectric power generator and the rough-rolled steel strip was set to 3000 mm, and after the front end of the rough-rolled steel strip was passed, the thermoelectric generation device was moved, and the thermoelectric power generation device was moved. The distance of the rough rolled steel bar is controlled to be 720 mm. Further, the temperature of the rough-rolled steel strip is about 1200 ° C in the center in the width direction, and the end portion of the web (indicating that the end face of the rough-rolled steel strip is within a range of about 80 mm in the width direction, hereinafter referred to as the end portion A) Refers to the same range) rough rolled steel bars with a temperature of 1100 ° C and a width of 900 mm and a thickness of 40 mm.

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

In the second example of the invention, when the through-plate of the rough-rolled steel strip is started, the distance between the thermoelectric power generator and the rough-rolled steel strip is set to 3000 mm, and after the leading end of the rough-rolled steel strip passes, the thermoelectric generation device is moved. A test was conducted to control the distance between the thermoelectric power generating device and the rough rolled steel bar to 720 mm. Further, a rough rolled steel bar having a temperature of the rough rolled steel bar of about 1200 ° C in the width direction and a width of 900 mm and a thickness of 40 mm was used.

As a result, the width direction is approximately equal to the rated output with respect to the rated output, but the output is 83% at the end portion A.

In the inventive example 3, the thermoelectric power generation unit was configured as shown in Fig. 12, and the distance between the thermoelectric power generation unit and the steel embryo was controlled to 720 mm in the center portion, and the distance was controlled to 640 mm at the web end portion A. Further, the rough-rolled steel strip was used in the same manner as in the above-described Invention Example 2, and the temperature distribution was the same.

As a result, the rated output is substantially obtained as a whole in the width direction.

In the fourth invention, the thermoelectric power generation unit is configured as shown in FIG. 14 , and the thermoelectric power generation module in the thermoelectric power generation unit is disposed at a central portion of 55 mm intervals, and at the web end portion A at intervals of 60 mm, and The distance between the unit and the steel embryo is controlled to be 640 mm. Further, the rough-rolled steel strip was used in the same manner as in the above-described Invention Example 2, and the temperature distribution was the same.

As a result, the rated output is roughly obtained in the width direction.

Inventive Example 5 was carried out by conducting a test in which the thermoelectric power generation unit and the heat source were arranged as shown in Fig. 16(A), and a heat reflecting material that condensed heat to the thermoelectric power generation unit was disposed. Further, the rough-rolled steel strip was used in the same manner as in the above-described Invention Example 2, and the temperature distribution was the same.

As a result, the thermoelectric power generation unit can roughly obtain the rated output.

Inventive Example 6 was carried out by conducting a test in which a thermoelectric power generator having four thermoelectric power generation units was provided around the outer periphery of the rough rolled steel strip. Further, the rough-rolled steel strip was used in the same manner as in the above-described Invention Example 2, and the temperature distribution was the same.

As a result, the number of thermoelectric power generation units increased, and the output of 2.2 times was obtained as compared with Inventive Example 4.

Inventive Example 7 is controlled by moving only the thermoelectric power generation unit above the rough rolled steel strip and providing an opening as shown in Fig. 18(A).

That is, the following test was carried out: when the through-plate of the rough-rolled steel strip was started, the upper portion was set as an opening portion, and after the plate was stabilized, the upper thermoelectric power generator was brought close to the rough-rolled steel strip. Further, the rough-rolled steel strip was used in the same manner as in the above-described Invention Example 2, and the temperature distribution was the same.

As a result, the rated output can be obtained, and since other thermoelectric power generating units are not movable, the operation cost required to make the thermoelectric power generating unit movable can be reduced.

In Comparative Example 1, the same thermoelectric power generation unit as in the above-described Invention Example 1 was used. Further, the thermoelectric power generation unit was placed in the same place as in the first invention example described above. At the time of this setting, the distance between the thermoelectric power generator and the rough rolled steel bar was set to 3000 mm, and the test was performed without damaging the thermoelectric power generator. Further, the rough-rolled steel strip was used in the same manner as in the above-described Invention Example 2, and the temperature distribution was the same.

As a result, only an output of about 1% of the rated output can be obtained.

According to the results of the above-described Invention Examples 1 to 7 and Comparative Example 1, it was confirmed that the excellent power generation effect using the hot rolling equipment line of the present invention was obtained. Further, in the first embodiment, the hot rolling equipment line with the moving means above the rough rolled steel strip is used, and the setting place of the thermoelectric power generation unit is changed according to the temperature of the rough rolled steel strip or the temperature in the vicinity of the installation place, but it is confirmed. Even if the temperature of the steel blank and the hot-rolled steel strip or the output of the thermoelectric power generation unit is changed, the installation place, the installation form, and the like are changed, and the same result can be obtained according to the present invention.

[Embodiment 2]

In order to confirm the effect of the thermoelectric power generator of the present invention, a thermoelectric power generation unit having a configuration of FIG. 2 and having an area of 1 m ² was used, and the thermoelectric power generation unit was placed at the position of F in FIG. Test of the output of the power generation unit.

Inventive Example 8 is a test in which the distance between the thermoelectric power generator and the hot steel billet is set to 3000 mm at the start of the hot steel preform, and the thermoelectric power generating device is moved after passing through the front end of the hot steel billet, and the thermoelectric power generating device is moved. The distance of the hot steel embryo is controlled to be 720 mm. Further, the temperature of the hot steel is about 1000 ° C in the center in the width direction, and the end portion of the width (indicating that the end face of the hot steel billet is within a range of about 80 mm in the width direction, and hereinafter referred to as the end portion B) Refers to the same range of hot steel embryos with a temperature of 950 ° C and a width of 900 mm and a thickness of 250 mm.

As a result, an output of 75% is obtained with respect to the rated output. Also, the end is 62% Output.

In the ninth aspect of the invention, the thermoelectric power generation unit similar to that of the eighth invention is used. When the hot steel preform is started, the distance between the thermoelectric power generator and the hot steel billet is set to 3000 mm, and the thermoelectric power generation is performed after the hot steel embryo is passed through the front end. The device moves. A test was conducted to control the distance between the thermoelectric power generation device and the hot steel embryo to 640 mm. Further, a hot steel embryo having a hot steel billet temperature of about 1000 ° C and a width of 900 mm and a thickness of 250 mm was used throughout the width direction.

As a result, the width direction is approximately equal to the rated output with respect to the rated output, but the output is 83% at the end portion B.

Inventive Example 10 was carried out by the following test: The thermoelectric power generation unit was constructed as shown in Fig. 12, and the distance between the thermoelectric power generation unit and the steel preform was controlled to 640 mm in the center portion, and the distance was controlled to 530 mm at the end portion B. Further, the hot steel embryo system was the same size as the above-described Invention Example 9 and had the same temperature distribution.

As a result, the rated output is substantially obtained as a whole in the width direction.

In the eleventh invention, the thermoelectric power generation unit is configured as shown in FIG. 14 , and the thermoelectric power generation module in the thermoelectric power generation unit is disposed at a central portion of 55 mm intervals, and at the web end portion B at a spacing of 60 mm, and The distance between the unit and the steel embryo is controlled to be 640 mm. Further, the hot steel embryo system was the same size as the above-described Invention Example 9 and had the same temperature distribution.

As a result, the rated output is roughly obtained in the width direction.

In the invention example 12, the thermoelectric power generation unit and its outer periphery were configured as shown in Fig. 16(A), and the heat reflective material that condensed heat to the thermoelectric power generation unit was disposed. Further, the hot steel embryo system was the same size as the above-described Invention Example 2 and had the same temperature distribution.

As a result, the thermoelectric power generation unit can roughly obtain the rated output.

Inventive Example 13 was carried out by the following test: further to surround the outer periphery of the hot steel embryo A thermoelectric power generation device having four thermoelectric power generation units is provided. Further, the hot steel embryo system was the same size as the above-described Invention Example 2 and had the same temperature distribution.

As a result, the number of thermoelectric power generation units increased, and 2.2 times of the output was obtained as compared with Inventive Example 11.

Inventive Example 14 was carried out by operating only the thermoelectric power generation unit above the hot steel preform and providing an opening as shown in Fig. 18(A).

That is, the test was carried out in that the upper portion was set as an opening at the start of the hot steel preform, and the upper thermoelectric power generator was brought close to the hot steel after the material was stabilized. Further, the hot steel embryo system was the same size as the above-described Invention Example 2 and had the same temperature distribution.

As a result, the rated output can be obtained, and since other thermoelectric power generating units are not movable, the operation cost required to make the thermoelectric power generating unit movable can be reduced.

In Comparative Example 2, the same thermoelectric power generation unit as that of the above-described Invention Example 8 was used, and the thermoelectric power generation unit was placed in the same place as the above-described Invention Example 8. However, when the thermoelectric power generator was installed, the distance between the thermoelectric power generator and the hot steel billet was set to 3000 mm, and the test was performed without damaging the thermoelectric power generator. Further, the hot steel embryo system was the same size as the above-described Invention Example 2 and had the same temperature distribution.

As a result, only an output of about 1% of the rated output can be obtained.

According to the results of the above-described Invention Examples 8 to 14 and Comparative Example 2, it was confirmed that the power generation effect of the continuous casting equipment line of the present invention was excellent. Further, in the second embodiment, the continuous casting equipment line with the moving means above the hot steel blank is used, and the setting place of the thermoelectric power generation unit is changed depending on the temperature of the hot steel blank or the temperature in the vicinity of the installation place, but it is confirmed. Even if the installation place, the installation form, and the like are changed according to the output of the thermoelectric power generation unit, the same result can be obtained according to the present invention.

[Example 3]

In order to confirm the effect of the thermoelectric power generator of the present invention, a thermoelectric power generation unit having a configuration of 1 m ² as shown in FIG. 2 was used, and the thermoelectric power generation unit was placed at the position G of FIG. Test of the output of the power generation unit.

Inventive Example 15 is a test in which the distance between the thermoelectric generation device and the steel embryo is set to 3000 mm at the start of the passage of the steel blank, and after passing through the front end of the steel embryo, the thermoelectric generation device is moved to be combined with the steel embryo. The distance control is 720mm. Further, the use of the steel embryo temperature (in the present embodiment, simply referred to as the temperature of the steel blank refers to the temperature of the central portion of the steel blank) is about 1200 ° C in the center in the width direction, and the end portion of the web (indicating from the end face of the steel blank) The range of about 80 mm in the width direction, hereinafter referred to as the end portion C, refers to the same range of steel embryos having a temperature of 1,100 ° C and a width of 900 mm and a thickness of 40 mm.

As a result, 75% of the output is obtained in the center in the width direction with respect to the rated output. Also, the end portion C is 62% of the output.

In the invention example 16, when the steel sheet is started, the distance between the thermoelectric power generator and the steel embryo is set to 3000 mm, and after passing through the front end of the steel preform, the thermoelectric power generator is moved. A test was conducted to control the distance between the thermoelectric generation device and the steel embryo to 720 mm. Further, a steel blank having a steel preform temperature of about 1200 ° C and a width of 900 mm and a thickness of 40 mm was used throughout the width direction.

As a result, the center in the width direction is approximately the same as the rated output with respect to the rated output, but the output is 83% at the end portion C.

Inventive Example 17 was carried out by the following test: The thermoelectric power generation unit was constructed as shown in Fig. 12, and the distance between the thermoelectric power generation unit and the steel preform was controlled to 720 mm in the center portion, and the distance was controlled to 640 mm at the end portion C. Further, the steel blank system was the same size as the above-described Invention Example 16 and had the same temperature distribution.

As a result, the rated output is substantially obtained as a whole in the width direction.

Inventive Example 18 is a test in which the thermoelectric power generation unit has the configuration shown in Fig. 14, and the thermoelectric power generation module in the thermoelectric power generation unit is disposed at a central portion of 55 mm intervals, and at the end portion C at a spacing of 60 mm, and the unit is placed. The distance from the steel embryo is controlled to be 640 mm. Further, the steel blank system was the same size as the above-described Invention Example 16 and had the same temperature distribution.

As a result, the rated output is roughly obtained in the width direction.

Inventive Example 19 was carried out by conducting a test in which the thermoelectric power generation unit and the heat source were arranged as shown in Fig. 16(A), and a heat reflecting material that condensed heat to the thermoelectric power generation unit was disposed. Further, the steel germ system was the same size as the above-described Example 16 and the temperature distribution was the same.

As a result, the thermoelectric power generation unit can roughly obtain the rated output.

In Inventive Example 20, the following test was carried out: Further, a thermoelectric power generator having four thermoelectric power generation units was provided so as to surround the outer peripheral portion of the steel slab. Further, the steel blank system was the same size as the above-described Invention Example 16 and had the same temperature distribution.

As a result, the number of thermoelectric power generation units increased, and 2.2 times of the output was obtained as compared with Inventive Example 18.

Inventive Example 21 is controlled such that only the thermoelectric power generation unit above the steel blank is movable, and an opening portion as shown in Fig. 18(A) is provided.

That is, the test was carried out in such a manner that the thermoelectric power generation unit was previously evacuated from the upper opening portion at the start of the passage of the steel blank, and the upper thermoelectric power generation device was brought close to the steel embryo after the plate was stabilized. Further, the steel blank system was the same size as the above-described Invention Example 16 and had the same temperature distribution.

As a result, the rated output can be obtained, and since other thermoelectric generation units are not operated, the operation cost required to operate the thermoelectric generation unit can be reduced.

In Comparative Example 3, the same thermoelectric power generation list as in the above-described inventive example 15 was used. The thermoelectric power generation unit was placed in the same place as the above-described inventive example 15. At the time of this setting, the distance between the thermoelectric generation device and the steel embryo was set to 3000 mm, and the test was performed without damaging the thermoelectric generation device. Further, the steel blank system was the same size as the above-described Invention Example 16 and had the same temperature distribution.

As a result, only an output of about 1% of the rated output can be obtained.

In Comparative Example 4, a test was conducted in which the thermoelectric power generation unit was not evacuated at the start of the passage of the steel blank. As a result, at the beginning of the passage of the steel blank, the steel embryo contacts the thermoelectric power generation unit, and the thermoelectric power generation device is broken.

According to the results of the above-described Invention Examples 15 to 21 and Comparative Examples 3 and 4, it was confirmed that the power generation effect of the steel sheet manufacturing equipment line for casting and rolling of the present invention was excellent. Further, in the above-described third embodiment, the steel sheet manufacturing equipment line for casting and rolling with the moving means above the steel blank is used, and the setting place of the thermoelectric power generation unit is changed depending on the temperature of the steel preform or the temperature in the vicinity of the installation place. In addition, it has been confirmed that the same result can be obtained according to the present invention even if the temperature of the hot-rolled steel sheet, the hot-rolled steel strip, or the like, or the output of the thermoelectric power generation unit is changed, and the installation place or the installation form is changed.

[Example 4]

In order to confirm the effect of the thermoelectric power generator of the present invention, a thermoelectric power generation unit having a configuration of FIG. 2 and having an area of 1 m ² was used, and the thermoelectric power generation unit was placed at the position of N in FIG. Test of the output of the power generation unit.

In the invention example 22, the distance between the thermoelectric power generation device and the pipe material was set to 3000 mm at the start of the pipe material, and the thermoelectric power generation device was moved after the pipe end was passed, and the distance from the pipe material was controlled to 155 mm. . Further, a pipe having a pipe temperature of about 1200 ° C and an outer diameter of 120 mm was used.

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

In the invention example 23, the thermoelectric power generation unit similar to the invention example 22 was used. When the material of the pipe material was started, the distance between the thermoelectric power generation device and the pipe material was set to 3000 mm, and the thermoelectric power generation device was moved after the pipe end was passed. A test was conducted to control the distance between the thermoelectric power generation device and the pipe to 125 mm. Further, a pipe material having a pipe temperature of about 1200 ° C and an outer diameter of 120 mm throughout the width direction was used.

As a result, the width direction is approximately equal to the rated output with respect to the rated output, but the end is 83% of the output.

Inventive Example 24 was carried out by the following test: The thermoelectric power generation unit was constructed as shown in Fig. 13, and the distance between the thermoelectric power generation unit and the pipe material was controlled to 155 mm in the center portion, and the distance was controlled to 125 mm at the end portion. Further, the pipe was used in the same manner as in the above-described Invention Example 23, and the temperature distribution was the same.

As a result, the rated output is substantially obtained as a whole in the width direction.

In the invention example 25, the thermoelectric power generation unit is configured as shown in Fig. 15, and the thermoelectric power generation module in the thermoelectric power generation unit is disposed at a central portion of 55 mm intervals, and at the end portions at intervals of 60 mm, the unit and the tube are disposed. The distance is controlled to 125mm. Further, the pipe was used in the same manner as in the above-described Invention Example 23, and the temperature distribution was the same.

As a result, the rated output is roughly obtained in the width direction.

In Inventive Example 26, the test was carried out in such a manner that the thermoelectric power generation unit and the heat source were configured as shown in Fig. 17(A), and the heat-reflecting material that condensed the heat to the thermoelectric power generation unit was disposed. Further, the pipe was used in the same manner as in the above-described Invention Example 23, and the temperature distribution was the same.

As a result, the thermoelectric power generation unit can roughly obtain the rated output.

Inventive Example 27 was carried out by the following test: further to surround the outer circumference of the pipe In this manner, a thermoelectric generation device having four thermoelectric generation units is provided. Further, the pipe was used in the same manner as in the above-described Invention Example 23, and the temperature distribution was the same.

As a result, the number of thermoelectric power generation units increased, and the output of 2.2 times was obtained as compared with Inventive Example 25.

Inventive Example 28 is an operation operation in which only the thermoelectric power generation unit above the pipe is movable, and an opening portion as shown in Fig. 19(A) is provided.

That is, the test was carried out in which the upper portion was set as an opening at the start of the material of the pipe, and the thermoelectric power generator above was placed close to the pipe after the material was stabilized. Further, the pipe was used in the same manner as in the above-described Invention Example 23, and the temperature distribution was the same.

As a result, the rated output can be obtained, and since other thermoelectric power generating units are not movable, the operation cost required to make the thermoelectric power generating unit movable can be reduced.

In Comparative Example 5, the same thermoelectric power generation unit as in the above-described Invention Example 22 was used, and the thermoelectric power generation unit was placed in the same place as the above-described Invention Example 22. However, when the thermoelectric power generator was installed, the distance between the thermoelectric power generator and the pipe was set to 3000 mm, and the test was performed without damaging the thermoelectric generator. Further, the pipe was used in the same manner as in the above-described Invention Example 23, and the temperature distribution was the same.

As a result, only an output of about 1% of the rated output can be obtained.

According to the results of the above-mentioned Invention Examples 22 to 28 and Comparative Example 5, it was confirmed that the power generation effect excellent in the use of the forging pipe line of the present invention was obtained. In the fourth embodiment, the thermoelectric power generation device with the moving means above the pipe is used, and the installation place of the thermoelectric power generation unit or the like is changed depending on the temperature of the pipe or the temperature in the vicinity of the installation site, but it is confirmed that even according to the steel plate The temperature or the output of the thermoelectric power generation unit, the change of the installation place or the installation form, and the like can be obtained in accordance with the present invention.

(industrial availability)

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

1‧‧‧Thermal power generation unit

2‧‧‧Mobile means

3‧‧‧Thermal power generation unit

4‧‧‧Conveying roller

5‧‧‧Steel

Claims (2)

A thermoelectric power generation method is a method for manufacturing a thermoelectric power generation by using a manufacturing equipment line for receiving heat of a hot steel bill, wherein the manufacturing equipment line has a manufacturing equipment line of a steel mill for moving the heat source, and the manufacturing equipment line is provided with thermoelectric power generation In the apparatus, the thermoelectric generation device includes a thermoelectric power generation unit and a moving means for moving one of the thermoelectric power generation units, and the thermoelectric power generation unit is disposed to face the heat source, and the thermoelectric power generation module of the thermoelectric power generation unit is disposed In the low temperature portion and the high temperature portion of the heat source, the thermoelectric power generation module in the thermoelectric power generation unit is disposed in the high temperature portion more closely than the low temperature portion, corresponding to the temperature of the heat source and/or the output of the thermoelectric power generation unit. The manufacturing equipment line includes a continuous casting equipment line of a continuous casting hot steel preform having a steel billet cooling device and a steel blank cutting device, and the thermoelectric power generating device is disposed on a delivery side of the steel blank cutting device to generate the thermoelectric power generation The unit is configured to face the hot steel embryo and is opposite to the hot steel embryo of the thermoelectric power generation device The conveyance speed is set to a speed higher than the continuous casting speed and equal to or less than 1.1 times the continuous casting speed. The thermoelectric power generation method according to claim 1, wherein the thermoelectric generation device further includes an operation determining means for determining whether the thermoelectric generation unit is operating based on an output of the thermoelectric generation unit, and controlling the thermoelectric generation by using the operation determining means. The operation of the unit.