CN219014995U - High-temperature continuous casting billet waste heat recovery device for steel mill - Google Patents

High-temperature continuous casting billet waste heat recovery device for steel mill Download PDF

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CN219014995U
CN219014995U CN202221987924.1U CN202221987924U CN219014995U CN 219014995 U CN219014995 U CN 219014995U CN 202221987924 U CN202221987924 U CN 202221987924U CN 219014995 U CN219014995 U CN 219014995U
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continuous casting
casting billet
water
temperature continuous
waste heat
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王旭
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Hebei Rongxin Iron And Steel Co ltd
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Hebei Rongxin Iron And Steel Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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Abstract

The utility model relates to a high-temperature continuous casting billet waste heat recovery device for a steel mill, which comprises a water delivery pipe group, a heat preservation layer, a water pipe inner shell and a water pipe outer shell, wherein the water pipe inner shell covers the high-temperature continuous casting billet, a high-temperature continuous casting billet is arranged above a roller way, the water pipe inner shell is -shaped and covers the periphery of the high-temperature continuous casting billet, the water delivery pipe group, the water pipe outer shell, the heat preservation layer and the heat preservation layer cover are sequentially arranged outside the water pipe inner shell, the water pipe outer shell, the heat preservation layer and the heat preservation layer cover, and the water pipe inner shell is -shaped and sequentially covered; the utility model utilizes the thermoelectric generator to convert waste heat into electric energy, and realizes secondary utilization of energy.

Description

High-temperature continuous casting billet waste heat recovery device for steel mill
Technical Field
The utility model relates to the technical field of steelmaking, in particular to a high-temperature continuous casting billet waste heat recycling device for a steel mill.
Background
In the continuous casting billet production process of ferrous metallurgy enterprises, roller bed parts before continuous casting billets are cut are conveyed to a cooling bed, a large amount of heat energy is released in an ineffective way in the natural cooling process of high-temperature continuous casting billets, and the waste heat of the continuous casting billets is directly dispersed in an external environment, so that on one hand, the environment temperature is increased, on the other hand, the waste of heat is caused, and on the other hand, most of heat energy released by the high-temperature continuous casting billets is recovered under the condition that the crystallization process of the continuous casting billets is not influenced, so that the recovered heat energy is converted into electric energy to be reused, and the effects of saving energy and protecting the working environment are achieved.
Disclosure of Invention
The utility model aims to provide a high-temperature continuous casting billet waste heat recovery device for a steel mill, which is a device for absorbing the high-temperature continuous casting billet waste heat through the high-temperature continuous casting billet waste heat recovery device and converting the recovered heat energy into electric energy by utilizing a waste heat generator.
The utility model aims at solving the problems by the following technical scheme:
the high-temperature continuous casting billet waste heat recovery device for the steel mill comprises a high-temperature continuous casting billet, a roller way, a high-temperature continuous casting billet waste heat recovery device and a first thermoelectric generator; the high-temperature continuous casting billet waste heat recovery device comprises two supporting plates, a water delivery pipe group, a heat preservation layer, a water pipe inner shell, a water pipe outer shell and a hoisting frame, wherein the two supporting plates are respectively arranged on supporting surfaces on the left side and the right side of a roller way, a high-temperature continuous casting billet is arranged above the roller way, the water pipe inner shell is -shaped and covers the periphery of the high-temperature continuous casting billet, the water delivery pipe group, the water pipe outer shell, the heat preservation layer and the heat preservation layer cover are sequentially arranged outside the water pipe inner shell, the water pipe outer shell is -shaped and sequentially covered, the hoisting frame is arranged at the top of the water pipe outer shell, and hoisting holes are formed in the hoisting frame.
Above-mentioned steel mill is with high temperature continuous casting billet waste heat recovery device, first thermoelectric generator includes thermoelectric generation piece, direct current voltage conversion circuit, direct current change alternating current circuit, electric wire, first pumping mechanism, second pumping mechanism and metal casing, be equipped with two thermoelectric generation pieces in the metal casing, the hot junction of two thermoelectric generation pieces sets up in the metal casing in opposite directions, and the centre forms the clearance and is the steam channel, and the clearance that forms between cold junction of two thermoelectric generation pieces respectively and the metal casing is the cold water channel, the power port of two poles of thermoelectric generation piece, direct current voltage conversion circuit, direct current change alternating current circuit and first pumping mechanism, second pumping mechanism passes through the electric wire intercommunication.
Above-mentioned steel mill is with high temperature continuous casting billet waste heat recovery device, the water delivery nest of tubes is that metal cylinder pipe snakelike end to end connects to form.
Above-mentioned steel mill is with high temperature continuous casting billet waste heat recovery device, the water delivery pipe group is connected the steam delivery pipe, be equipped with first pumping mechanism on the steam delivery pipe, be equipped with the cistern on the steam delivery pipe between first pumping mechanism and the steam channel.
Above-mentioned steel mill is with high temperature continuous casting billet waste heat recovery device, cold water conveyer pipe is all connected at cold water channel's both ends, be equipped with cooling tower and second pumping mechanism on the cold water conveyer pipe.
Above-mentioned steel mill is with high temperature continuous casting billet waste heat recovery device, the water pipe inner shell sets up to hollow latticed.
The high-temperature continuous casting billet waste heat recovery device for the steel mill is characterized in that the first pumping mechanism and the second pumping mechanism are water suction pumps.
According to the high-temperature continuous casting billet waste heat recovery device for the steel mill, the number of the first thermoelectric generators is N, and the structure of each thermoelectric generator is completely consistent with that of the first thermoelectric generator; the number of N is 2-15.
Advantageous effects
The utility model utilizes the high-temperature continuous casting billet waste heat recovery device to absorb the waste heat of the high-temperature continuous casting billet, utilizes the thermoelectric generator to convert the heat energy into the electric energy, and supplies the generated heat energy to a water circulation system or workshop illumination and the like through the pumping mechanism, thereby saving energy consumption, reutilizing energy, reducing the environmental temperature and avoiding the waste of heat energy.
Drawings
The utility model is further described in detail below with reference to fig. 1.
FIG. 1 is a schematic diagram of a high temperature continuous casting billet waste heat recovery device according to the present utility model;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic diagram of a thermoelectric generator utilizing recycling according to the present utility model.
The reference numerals in the drawings are respectively as follows: 1. the high-temperature continuous casting billet waste heat recovery device comprises 2 parts of roller way, 3 parts of supporting surface, 4 parts of supporting plate, 5 parts of water delivery pipe group, 6 parts of heat preservation layer, 7 parts of water pipe inner shell, 8 parts of water pipe outer shell, 9 parts of lifting frame, 10 parts of lifting hole, 11 parts of high-temperature continuous casting billet, 12 parts of first thermoelectric generator, 13 parts of heat preservation layer cover, 14 parts of water delivery pipe group water inlet, 15 parts of water delivery pipe group water outlet, 16 parts of water vapor delivery pipe, 17 parts of cold water delivery pipe, 18 parts of thermoelectric generation piece, 19 parts of water vapor channel, 20 parts of cold water channel, 21 parts of first pumping mechanism, 22 parts of cooling tower, 23 parts of second pumping mechanism, 24 parts of direct current voltage conversion circuit, 25 parts of direct current conversion alternating current circuit, 26 parts of metal shell, 27 parts of electric wire, 28 parts of reservoir, 29 parts of nth thermoelectric generator.
Detailed Description
The utility model provides a high-temperature continuous casting billet waste heat recovery device for a steel mill, which is characterized in that a high-temperature continuous casting billet waste heat recovery device is arranged above a high-temperature continuous casting billet, water flowing through a water delivery pipe group is utilized to absorb waste heat of the high-temperature continuous casting billet to change water into water vapor, the water vapor enters a water vapor channel of a thermoelectric generator from a water outlet of the water delivery pipe group, cold water is circulated in the water vapor channel, a hot end and a cold end of a thermoelectric generation sheet are respectively contacted with the water vapor and the low-temperature cold water, and heat energy is converted into electric energy by utilizing temperature difference.
Referring to fig. 1 and 2, the utility model comprises a high-temperature continuous casting billet 11, a roller way 2, a high-temperature continuous casting billet waste heat recovery device 1 and a first thermoelectric generator 12; the high-temperature continuous casting billet waste heat recovery device comprises two supporting plates 4, a water delivery pipe group 5, a heat preservation layer 6, a water pipe inner shell 7, a water pipe outer shell 8 and a hoisting frame 9, wherein the two supporting plates 4 are respectively arranged on supporting surfaces 3 on the left side and the right side of a roller way 2, a high-temperature continuous casting billet 11 is arranged above the roller way 2, the water pipe inner shell 7 is -shaped and covers the periphery of the high-temperature continuous casting billet 11, the water delivery pipe group 5, the water pipe outer shell 8, the heat preservation layer 6 and the heat preservation layer cover 13 are sequentially arranged outside the water pipe inner shell 7, the water delivery pipe group 5, the water pipe outer shell 8, the heat preservation layer 6 and the heat preservation layer cover 13 are sequentially covered, the hoisting frame 9 is arranged at the top of the water pipe outer shell 8, and hoisting holes 10 are formed in the hoisting frame 9; the high-temperature continuous casting billet waste heat recovery device is manufactured into a whole, the lifting frame is arranged at the top, the lifting frame can be integrally lifted, the continuous casting billet production line maintenance is convenient, water is injected into the water inlet pipe when the high-temperature continuous casting billet waste heat recovery device works, water flows from the water inlet pipe end to the water outlet pipe end in the water delivery pipe group under the pressure action of the pumping mechanism, and waste heat emitted by the high-temperature continuous casting billet below is absorbed to be changed into water vapor.
Referring to fig. 3, the first thermoelectric generator 12 includes a thermoelectric generation sheet 18, a dc voltage conversion circuit 24, a dc-ac conversion circuit 25, an electric wire 27, a first pumping mechanism 21, a second pumping mechanism 23, and a metal shell 26, two thermoelectric generation sheets 18 are disposed in the metal shell 26, hot ends of the two thermoelectric generation sheets 18 are disposed in the metal shell 26 in opposite directions, a gap is formed between the two thermoelectric generation sheets 18 and the metal shell 26, a gap formed between the cold ends of the two thermoelectric generation sheets 18 and the metal shell 26 is a cold water channel 20, and two poles of the thermoelectric generation sheets 18, the dc voltage conversion circuit 24, the dc-ac conversion circuit 25, the first pumping mechanism 21, and power ports of the second pumping mechanism 23 are communicated through the electric wire 27; the water vapor generated by the high-temperature continuous casting billet waste heat recovery device passes through the water vapor channel of the thermoelectric generator, the other group of cold water circulates through the cold water channel, the cold and hot ends of the thermoelectric generation sheets are connected with different temperatures, heat energy is converted into electric energy, and the number of the thermoelectric generators can be selected according to the quantity of recovered waste heat.
Referring to fig. 1 and 3, the water pipe 5 is formed by connecting metal cylindrical pipes in a serpentine shape end to end; the circulating flow of water and the waste heat absorption of the high-temperature continuous casting billet are utilized.
Referring to fig. 3, the water delivery pipe group 5 is connected with a water vapor delivery pipe 16, a first pumping mechanism 21 is arranged on the water vapor delivery pipe 16, and a water reservoir 28 is arranged on the water vapor delivery pipe 16 between the first pumping mechanism 21 and the water vapor channel 19; the water supply circulation system supplements water and ensures the water pressure of the water vapor delivery pipeline.
Referring to fig. 3, two ends of the cold water channel 20 are connected with a cold water delivery pipe 17, and the cold water delivery pipe 17 is provided with a cooling tower 22 and a second pumping mechanism 23 to cool the circulating water and ensure the temperature difference of the cold water and the hot water in the waste heat power generation device.
Referring to fig. 1, the inner shell 7 of the water pipe is arranged in a hollow grid shape, which is beneficial for the water pipe assembly to absorb the waste heat of the high-temperature continuous casting cup.
Referring to fig. 3, the first pumping mechanism 21 and the second pumping mechanism 23 are water pumps, which use water circulation.
Referring to fig. 3, the number of the first thermoelectric generators 12 is N, and the structure of each thermoelectric generator is completely identical to that of the first thermoelectric generator 12; the number of N is 2-15, and the number of thermoelectric generators is selected according to the amount of recovered waste heat, so that the waste heat is fully utilized.

Claims (8)

1. A high-temperature continuous casting billet waste heat recovery device for a steel mill is characterized in that: comprises a high-temperature continuous casting billet (11), a roller way (2), a high-temperature continuous casting billet waste heat recovery device (1) and a first thermoelectric generator (12); the high-temperature continuous casting billet waste heat recovery device comprises a supporting plate (4), a water delivery pipe group (5), an insulating layer (6), a water pipe inner shell (7), a water pipe outer shell (8) and a hoisting frame (9), wherein the two supporting plates (4) are respectively arranged on supporting surfaces (3) on the left side and the right side of a roller way (2), a high-temperature continuous casting billet (11) is arranged above the roller way (2), the water pipe inner shell (7) is -shaped and covers the periphery of the high-temperature continuous casting billet (11), the water pipe inner shell (7) is sequentially covered by the water delivery pipe group (5), the water pipe outer shell (8), the insulating layer (6) and the insulating layer cover (13), the appearance is -shaped and sequentially covered, the hoisting frame (9) is arranged at the top of the water pipe outer shell (8), and the hoisting frame (9) is provided with hoisting holes (10).
2. The high-temperature continuous casting billet waste heat recovery device for steel mill according to claim 1, wherein the device comprises the following components: the first thermoelectric generator (12) comprises thermoelectric generation pieces (18), a direct-current voltage conversion circuit (24), a direct-current-to-alternating-current circuit (25), an electric wire (27), a first pumping mechanism (21), a second pumping mechanism (23) and a metal shell (26), wherein two thermoelectric generation pieces (18) are arranged in the metal shell (26), hot ends of the two thermoelectric generation pieces (18) are oppositely arranged in the metal shell (26), a water vapor channel (19) is formed in the middle of the two thermoelectric generation pieces, cold ends of the two thermoelectric generation pieces (18) are respectively communicated with a power port of the first pumping mechanism (21) and a power port of the second pumping mechanism (23) through the electric wire (27), and the cold ends of the two thermoelectric generation pieces (18) are respectively communicated with the metal shell (26) through the cold water channel (20).
3. The high-temperature continuous casting billet waste heat recovery device for steel mill according to claim 1, wherein the device comprises the following components: the water delivery pipe group (5) is formed by connecting metal cylindrical pipes in a snake-shaped end-to-end mode.
4. The high-temperature continuous casting billet waste heat recovery device for steel mill according to claim 1, wherein the device comprises the following components: the water delivery pipe group (5) is connected with the water vapor delivery pipe (16), a first pumping mechanism (21) is arranged on the water vapor delivery pipe (16), and a water reservoir (28) is arranged between the first pumping mechanism (21) and the water vapor channel (19).
5. The high-temperature continuous casting billet waste heat recovery device for steel mill according to claim 2, wherein: both ends of the cold water channel (20) are connected with a cold water conveying pipe (17), and the cold water conveying pipe (17) is provided with a cooling tower (22) and a second pumping mechanism (23).
6. The high-temperature continuous casting billet waste heat recovery device for steel mill according to claim 1, wherein the device comprises the following components: the water pipe inner shell (7) is arranged in a hollow grid shape.
7. The high-temperature continuous casting billet waste heat recovery device for steel mill according to claim 2, wherein: the first pumping mechanism (21) and the second pumping mechanism (23) are water suction pumps.
8. The high-temperature continuous casting billet waste heat recovery device for steel mill according to claim 2, wherein: the number of the first thermoelectric generators (12) is N, and the structure of each thermoelectric generator is completely consistent with that of the first thermoelectric generator (12); the number of N is 2-15.
CN202221987924.1U 2022-07-29 2022-07-29 High-temperature continuous casting billet waste heat recovery device for steel mill Active CN219014995U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221987924.1U CN219014995U (en) 2022-07-29 2022-07-29 High-temperature continuous casting billet waste heat recovery device for steel mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221987924.1U CN219014995U (en) 2022-07-29 2022-07-29 High-temperature continuous casting billet waste heat recovery device for steel mill

Publications (1)

Publication Number Publication Date
CN219014995U true CN219014995U (en) 2023-05-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221987924.1U Active CN219014995U (en) 2022-07-29 2022-07-29 High-temperature continuous casting billet waste heat recovery device for steel mill

Country Status (1)

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CN (1) CN219014995U (en)

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