KR101870710B1 - Apparatus for recovering waste heat and coke oven system having the same - Google Patents
Apparatus for recovering waste heat and coke oven system having the same Download PDFInfo
- Publication number
- KR101870710B1 KR101870710B1 KR1020160144297A KR20160144297A KR101870710B1 KR 101870710 B1 KR101870710 B1 KR 101870710B1 KR 1020160144297 A KR1020160144297 A KR 1020160144297A KR 20160144297 A KR20160144297 A KR 20160144297A KR 101870710 B1 KR101870710 B1 KR 101870710B1
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- KR
- South Korea
- Prior art keywords
- heat
- heat exchange
- exchange medium
- coke oven
- heat exchanging
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B5/00—Coke ovens with horizontal chambers
- C10B5/10—Coke ovens with horizontal chambers with heat-exchange devices
- C10B5/20—Coke ovens with horizontal chambers with heat-exchange devices with recuperators
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B41/00—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B43/00—Preventing or removing incrustations
- C10B43/02—Removing incrustations
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B45/00—Other details
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a heat recovery apparatus and a coke oven facility including the same, and more particularly, to a heat recovery apparatus capable of preventing excessive heat exchange at the time of recovery of gas passing through a riser, Device and a coke oven installation comprising the same.
The heat recovery / recovery device according to an embodiment of the present invention is a heat recovery / recovery device in which at least a part is installed in a facility including a plurality of uprising pipes, wherein a heat exchange medium capable of heat exchange with gas flowing in the uprising pipe A plurality of heat exchanging units each having a path formed therein and installed in the plurality of uprising pipes; And a connection member having an internal path through which the heat exchange medium can pass so as to form the moving lines of the plurality of heat exchange units and the heat exchange medium, and connecting the plurality of heat exchange units.
Description
BACKGROUND OF THE
Coal is the most important energy source of the steel industry and is mainly used in blast furnaces. In the early days, it was used as coal itself. However, since it is not efficient, coal is made into coke in almost all steel mills and put into blast furnace. In order to produce coke, coal for coke should be added to the coke oven. Coal imported from various countries has a different composition, so the composition is adjusted in the Blending Bin prior to injection into the coke oven. The coke oven consists of a number of independent combustion chambers and carbonization chambers, which supply energy to the carbonization chamber by combustion of the coke oven gas (COG) in the combustion chamber, and carbonification of the coal occurs in the carbonization chamber. When carbonization is carried out in the carbonization chamber, the volatile components contained in the coal escape through the rising pipe into the coke oven in the form of gas. It is called coke oven gas (COG) and is an important energy source for steelworks. Meanwhile, the crude coke oven gas (COG), which has not been refined yet, can be named as a crude coke oven gas (Crude COG), while the one-coke oven gas (Crude COG) (Coke oven gas) (COG) used in the steelworks.
The gas generated from the coke oven (Crude COG) is cooled by the ordination through the riser. In this process, the crude coke oven gas (Crude COG) at 600 to 800 ° C falls to 80 to 100 ° C, and Tar contained in the gas is removed. As a result of high temperature coke oven gas (COG) cooling, the Ordnance Temperature rises and at the same time the overall Ordnance Temperature circulating in the conversion process rises and the purification efficiency of coke oven gas (COG) declines. Therefore, efforts are needed to reduce the ordination temperature and simultaneously recover the heat.
To this end, attempts have been made to recover energy by installing a heat exchanger in a riser, but additional heat source supply and tar condensation have occurred due to excessive heat exchange. Further, the heat exchanger is arranged in a narrow space, which makes it difficult to maintain, and oven deformation occurs due to an increase in equipment load, thereby causing problems such as adhered substances to the heat exchanger.
The present invention provides a superheating and recovering device and a coke oven facility including the elevating and recovering device capable of obtaining high thermal energy while preventing excessive heat exchange at the time of recovering heat from the gas passing through the riser pipe.
The heat recovery / recovery device according to an embodiment of the present invention is a heat recovery / recovery device in which at least a part is installed in a facility including a plurality of uprising pipes, wherein a heat exchange medium capable of heat exchange with gas flowing in the uprising pipe A plurality of heat exchanging units each having a path formed therein and installed in the plurality of uprising pipes; And a connection member having an internal path through which the heat exchange medium can pass so as to form the moving lines of the plurality of heat exchange units and the heat exchange medium, and connecting the plurality of heat exchange units.
The heat exchanging part may be formed at least partially in a non-linear shape.
The heat exchanger may be located in a central region inside the riser pipe.
The heat exchanger may have a plurality of bent portions or bent portions.
The path length of the heat exchange unit located at one side of the movement line may be different from the path length of the heat exchange unit located at the other side of the movement line.
And a heat utilizing engine connected to a moving line of the heat exchange medium so as to utilize thermal energy transmitted from the heat exchange medium which has passed through the moving line of the heat exchange medium.
The heat utilization engine may be connected to both sides of the movement line of the heat exchange medium.
And a protection member disposed around the heat exchange unit to protect the heat exchange unit.
The protective member may include a chain sling on which the adhesive material is removed by shaking.
The heat exchange medium may include water, and the water may be converted into steam through a movement line of the heat exchange medium.
A coke oven facility according to another embodiment of the present invention comprises a coke oven for producing coke; And a superheating and recovering device installed in the carbonization chamber of the coke oven.
The plurality of heat exchanging units may be connected to the plurality of heat exchanging units and the plurality of heat exchanging units may be connected to the moving lines of the heat exchanging medium by connecting the plurality of heat exchanging units with the connecting members. Thus, since the heat exchange medium is passed through the plurality of risers, the heat exchange medium can be used to obtain high thermal energy even when excessive heat is not exchanged in each riser pipe during the recovery of the gas passing through the riser.
In addition, since only a moving line of the heat exchanging medium including a plurality of heat exchanging units and connecting members is installed in a facility including a plurality of uprising pipes, the load applied to the equipment can be minimized by the hot- In addition, the apparatus for recovering and recovering heat of the present invention can simplify the structure of the apparatus by a plurality of heat exchanging units and connecting members, thereby solving the difficulty of maintenance.
On the other hand, when at least a part of the heat exchanging part is non-linear, the heat exchanging time of the heat exchanging medium can be increased, so that the effective heat exchanging medium can be recovered through the heat exchanging medium. When water is used as a heat exchange medium, the water is converted into steam through a plurality of uprising pipes, so that the heat of the gas passing through the uprising pipe can be recovered and high temperature and high pressure steam can be obtained. Further, it is possible to prevent or suppress the contamination of the surface of the heat exchanging part due to the adhered material through the protective member, and thus the gas flowing in the inside of the uprising pipe can directly contact the surface of the heat exchanging part, Heat exchange of the heat exchange medium can be effectively performed.
FIG. 1 illustrates a facility including a plurality of risers according to an embodiment of the present invention. FIG.
FIG. 2 is a schematic view of a superheating and recovering apparatus according to an embodiment of the present invention; FIG.
3 is a view showing a modification of the heat exchanger according to the embodiment of the present invention.
4 is a schematic view showing a modified example of the heat recovery apparatus according to an embodiment of the present invention;
5 is a view illustrating a protective member according to an embodiment of the present invention.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know. In the description, the same components are denoted by the same reference numerals, and the drawings are partially exaggerated in size to accurately describe the embodiments of the present invention, and the same reference numerals denote the same elements in the drawings.
FIG. 1 is a view showing a facility including a plurality of uprising pipes according to an embodiment of the present invention, and FIG. 2 is a schematic view showing a boiler and a recovery apparatus according to an embodiment of the present invention.
1 and 2, a superheating and recovering
The
The plurality of
For example, the plurality of
The
The connecting
For example, the connecting
The connecting
The plurality of
Conventionally, the heat recovery / recovery device including the heat exchanger is provided in each of the plurality of
However, in the
The
In the prior art, a method of collecting heat energy recovered through each of the heat recovery / recovery devices using an additional separate heat recovery medium was used because heat energy obtained through the heat recovery of the gas was not large in one heat recovery and recovery device. However, in the present invention, high heat energy can be obtained through the
The heat exchange medium may be a liquid such as water that can easily recover the heat from the gas. The heat exchange medium may include water, and the water may be converted into steam through the
In order to change the state of water to steam, latent heat is required. If the gas is separately recovered for each
However, in the present invention, the water is passed through the plurality of
FIG. 3 is a view showing a modified example of the heat exchanger according to the embodiment of the present invention. FIG. 3 (a) shows a coil type heat exchanger and FIG. 3 (b) shows a multiphase horizontal rectangular wave heat exchanger.
Referring to FIG. 3, at least a part of the
The
And the
Further, the
The
When the
The heat generating and recovering
The number of the
4 is a schematic view showing a modified example of the heat recovery apparatus according to an embodiment of the present invention.
Referring to FIG. 4, the heating and recovering
The
The
The
FIG. 5 is a view showing a protection member according to an embodiment of the present invention, wherein FIG. 4 (a) shows a protection member provided in a rectangular wave heat exchanger, and FIG. 4 (b) .
5, the
The
And the
Meanwhile, when the
Hereinafter, the coke oven system according to another embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5. The elements overlapping with those described above with respect to the preheating and recovering apparatus according to an embodiment of the present invention Omit it.
The coke oven facility according to another embodiment of the present invention includes a
Coal imported from overseas is transferred from the yard to the blending bin through a conveyor belt after waiting for a certain period of time and blended to maintain a constant composition. The combined coal is conveyed to the charging car of the
The
The
The
The
In the absence of the
The
A
As described above, in the present invention, a plurality of heat exchanging units may be provided in each of the plurality of risers, and a plurality of heat exchanging units may be connected to the connecting members so that the plurality of heat exchanging units and the connecting members may form a moving line of the heat exchanging medium. Thus, since the heat exchange medium is passed through the plurality of risers, the heat exchange medium can be used to obtain high thermal energy even when excessive heat is not exchanged in each riser pipe during the recovery of the gas passing through the riser. In addition, since only a moving line of the heat exchanging medium including a plurality of heat exchanging units and connecting members is installed in a facility including a plurality of uprising pipes, the load applied to the equipment can be minimized by the hot- In addition, the apparatus for recovering and recovering heat of the present invention can simplify the structure of the apparatus by a plurality of heat exchanging units and connecting members, thereby solving the difficulty of maintenance. On the other hand, when at least a part of the heat exchanging part is non-linear, the heat exchanging time of the heat exchanging medium can be increased, so that the effective heat exchanging medium can be recovered through the heat exchanging medium. When water is used as a heat exchange medium, the water is converted into steam through a plurality of uprising pipes, so that the heat of the gas passing through the uprising pipe can be recovered and high temperature and high pressure steam can be obtained. In addition, it is possible to prevent or suppress contamination of the surface of the heat exchanging part due to the adhered material through the protective member, so that the gas passing through the uprising pipe can directly contact the surface of the heat exchanging part, Can be effectively performed.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the embodiments set forth herein. Those skilled in the art will appreciate that various modifications and equivalent embodiments may be possible. Accordingly, the technical scope of the present invention should be defined by the following claims.
10: charge (coal) 20: gas collecting part
50: transfer line of heat exchange medium 100:
110: heat exchanger 120: connecting member
130: Heat utilization engine 140: Protection member (chain sling)
200: Equipment (coke oven) 210: Carbon seal
211: rising
212: entry opening 212a: entry opening door
220: Combustion chamber
Claims (11)
A plurality of heat exchanging units each having a path formed therein for allowing a heat exchange medium capable of heat exchange with gas flowing in the riser pipe to pass therethrough,
A connecting member having an internal path through which the heat exchange medium can pass so as to form the moving lines of the plurality of heat exchanging units and the heat exchange medium, and connecting the plurality of heat exchanging units; And
And a protective member having a chain sling on which adhering substances are removed by shaking.
Wherein the heat exchanging part is formed at least partially in a non-linear shape.
And the heat exchanger is located in a central region of the uprising pipe.
Wherein the heat exchanging portion has a plurality of bent portions or bent portions.
Wherein the path length of the heat exchange unit located at one side of the movement line is different from the path length of the heat exchange unit located at the other side of the movement line.
And a heat utilization engine connected to a moving line of the heat exchange medium to utilize heat energy transferred from the heat exchange medium which has passed through the moving line of the heat exchange medium.
And the heat utilization engine is connected to both sides of the movement line of the heat exchange medium.
And the protective member is disposed around the heat exchanging unit to protect the heat exchanging unit.
Wherein the heat exchange medium comprises water,
And the water is converted into steam through the movement line of the heat exchange medium.
A coke oven facility comprising: a coke oven installed in a carbonization chamber of a coke oven according to any one of claims 1 to 8;
Priority Applications (1)
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KR1020160144297A KR101870710B1 (en) | 2016-11-01 | 2016-11-01 | Apparatus for recovering waste heat and coke oven system having the same |
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KR1020160144297A KR101870710B1 (en) | 2016-11-01 | 2016-11-01 | Apparatus for recovering waste heat and coke oven system having the same |
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KR20180047688A KR20180047688A (en) | 2018-05-10 |
KR101870710B1 true KR101870710B1 (en) | 2018-07-19 |
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KR102125367B1 (en) * | 2018-06-21 | 2020-06-22 | 주식회사 포스코 | Apparatus for controlling pressure of gas in coke oven |
JP7056808B2 (en) | 2019-12-25 | 2022-04-19 | Dic株式会社 | Positive photosensitive resin composition, cured film, and resist film |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5984975A (en) * | 1982-11-05 | 1984-05-16 | Kouritsu Kikai Kogyo Kk | Heat exchanger for ascention pipe of coke oven |
JPS6095472U (en) * | 1983-12-08 | 1985-06-29 | 新日本製鐵株式会社 | Rising tube heat exchanger cooling system for sensible heat recovery equipment for coke oven gas |
KR101450849B1 (en) * | 2013-04-29 | 2014-10-23 | 주식회사 포스코 | Heat recovery device of waste gas from standpipe of coke oven, and method thereof |
-
2016
- 2016-11-01 KR KR1020160144297A patent/KR101870710B1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5984975A (en) * | 1982-11-05 | 1984-05-16 | Kouritsu Kikai Kogyo Kk | Heat exchanger for ascention pipe of coke oven |
JPS6095472U (en) * | 1983-12-08 | 1985-06-29 | 新日本製鐵株式会社 | Rising tube heat exchanger cooling system for sensible heat recovery equipment for coke oven gas |
KR101450849B1 (en) * | 2013-04-29 | 2014-10-23 | 주식회사 포스코 | Heat recovery device of waste gas from standpipe of coke oven, and method thereof |
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