CN220951648U - Coupling recycling gas system of heat recovery coke oven and dry quenching coke oven - Google Patents
Coupling recycling gas system of heat recovery coke oven and dry quenching coke oven Download PDFInfo
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- CN220951648U CN220951648U CN202322842034.2U CN202322842034U CN220951648U CN 220951648 U CN220951648 U CN 220951648U CN 202322842034 U CN202322842034 U CN 202322842034U CN 220951648 U CN220951648 U CN 220951648U
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- China
- Prior art keywords
- dry quenching
- coke oven
- oven
- waste heat
- heat recovery
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- 238000010791 quenching Methods 0.000 title claims abstract description 99
- 230000000171 quenching effect Effects 0.000 title claims abstract description 99
- 239000000571 coke Substances 0.000 title claims abstract description 90
- 238000011084 recovery Methods 0.000 title claims abstract description 50
- 238000004064 recycling Methods 0.000 title abstract description 10
- 230000008878 coupling Effects 0.000 title abstract description 8
- 238000010168 coupling process Methods 0.000 title abstract description 8
- 238000005859 coupling reaction Methods 0.000 title abstract description 8
- 239000002918 waste heat Substances 0.000 claims abstract description 58
- 239000000779 smoke Substances 0.000 claims abstract description 50
- 239000007789 gas Substances 0.000 claims abstract description 28
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000003546 flue gas Substances 0.000 claims abstract description 23
- 239000000428 dust Substances 0.000 claims description 26
- 238000006477 desulfuration reaction Methods 0.000 claims description 15
- 230000023556 desulfurization Effects 0.000 claims description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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- Coke Industry (AREA)
Abstract
The utility model relates to the technical field of waste heat utilization, and provides a coupling recycling gas system of a heat recovery coke oven and a dry quenching coke oven, which comprises the heat recovery coke oven, a heat recovery coke oven waste heat boiler, the dry quenching coke oven and the dry quenching coke oven waste heat boiler; the smoke inlet of the heat recovery coke oven waste heat boiler is communicated with the smoke outlet of the heat recovery coke oven, the smoke outlet of the heat recovery coke oven waste heat boiler is communicated with the smoke inlet of the dry quenching oven, the smoke outlet of the dry quenching oven is communicated with the smoke inlet of the dry quenching oven waste heat boiler, and the smoke outlet of the dry quenching oven waste heat boiler is communicated with the smoke inlet of the dry quenching oven. According to the coupling recycling gas system of the heat recovery coke oven and the dry quenching oven, the flue gas exhausted by the heat recovery coke oven is cooled by the waste heat boiler of the heat recovery coke oven and then sequentially enters the waste heat boiler of the dry quenching oven and the waste heat boiler of the dry quenching oven, and the flue gas is used as recycling gas in the waste heat boiler of the dry quenching oven and the waste heat boiler of the dry quenching oven all the time, so that the problem of burning of coke caused by air introduction can be avoided.
Description
Technical Field
The utility model relates to the technical field of waste heat utilization, in particular to a coupling recycling gas system of a heat recovery coke oven and a dry quenching oven.
Background
The dry quenching waste heat recovery system adopts an air introduction mode at present, so that the full combustion of combustible volatile matters in the dry quenching furnace is promoted, the oxygen content is reduced, and inert gas generated by combustion is used as a medium to transfer red Jiao Xianre into a waste heat boiler of the dry quenching furnace for power generation.
However, when air is introduced into the dry quenching furnace, the problem of burning coke is caused, and the operation efficiency of the whole system is reduced.
Disclosure of utility model
Aiming at the defects in the prior art, the utility model aims to provide a coupling recycling gas system of a heat recovery coke oven and a dry quenching coke oven, which can avoid the burning loss problem of coke.
In order to achieve the above object, the present utility model is realized by the following technical scheme: the coupled recycling gas system of the heat recovery coke oven and the dry quenching coke oven comprises the heat recovery coke oven, a heat recovery coke oven waste heat boiler, the dry quenching coke oven and a dry quenching coke oven waste heat boiler;
The smoke inlet of the heat recovery coke oven waste heat boiler is communicated with the smoke outlet of the heat recovery coke oven, the smoke outlet of the heat recovery coke oven waste heat boiler is communicated with the smoke inlet of the dry quenching oven, the smoke outlet of the dry quenching oven is communicated with the smoke inlet of the dry quenching oven waste heat boiler, and the smoke outlet of the dry quenching oven waste heat boiler is communicated with the smoke inlet of the dry quenching oven.
Further, the device also comprises a desulfurization dust remover, wherein a smoke outlet of the heat recovery coke oven waste heat boiler and a smoke outlet of the dry quenching coke oven waste heat boiler are both communicated with an inlet of the desulfurization dust remover, and an outlet of the desulfurization dust remover is communicated with a smoke inlet of the dry quenching coke oven.
Further, the device also comprises a dry quenching furnace gas circulation device, wherein an inlet of the dry quenching furnace gas circulation device is communicated with an outlet of the desulfurization dust remover, and an outlet of the dry quenching furnace gas circulation device is communicated with a smoke inlet of the dry quenching furnace.
Further, the coke dry quenching furnace further comprises a primary dust remover, wherein an inlet of the primary dust remover is communicated with a smoke outlet of the coke dry quenching furnace, and an outlet of the primary dust remover is communicated with a smoke inlet of the coke dry quenching furnace waste heat boiler.
Further, the device also comprises a circulating fan, wherein an inlet of the circulating fan is communicated with a smoke outlet of the dry quenching furnace waste heat boiler, and an outlet of the circulating fan is communicated with a smoke inlet of the dry quenching furnace.
The utility model has the beneficial effects that: according to the coupling recycling gas system of the heat recovery coke oven and the dry quenching oven, the flue gas exhausted by the heat recovery coke oven is cooled by the waste heat boiler of the heat recovery coke oven and then sequentially enters the waste heat boiler of the dry quenching oven and the waste heat boiler of the dry quenching oven, and the flue gas is used as recycling gas in the waste heat boiler of the dry quenching oven and the waste heat boiler of the dry quenching oven all the time, so that the problem of burning of coke caused by air introduction can be avoided.
Drawings
Fig. 1 is a block diagram of the structure flow of the present utility model.
Reference numerals: 10-heat recovery coke oven, 20-heat recovery coke oven waste heat boiler, 30-dry quenching coke oven, 40-dry quenching coke oven waste heat boiler, 50-desulfurization dust remover, 60-dry quenching coke oven gas circulation device, 70-primary dust remover and 80-circulation fan.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
In the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "fixed" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "horizontal," "top," "bottom," "upper," "lower," "inner" and "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is two or more unless specifically defined otherwise.
As shown in fig. 1, the present utility model provides a coupled recycle gas system of a heat recovery coke oven and a dry quenching coke oven, comprising a heat recovery coke oven 10, a heat recovery coke oven waste heat boiler 20, a dry quenching coke oven 30, and a dry quenching coke oven waste heat boiler 40.
The smoke inlet of the heat recovery coke oven waste heat boiler 20 is communicated with the smoke outlet of the heat recovery coke oven 10, the smoke outlet of the heat recovery coke oven waste heat boiler 20 is communicated with the smoke inlet of the dry quenching oven 30, the smoke outlet of the dry quenching oven 30 is communicated with the smoke inlet of the dry quenching oven waste heat boiler 40, and the smoke outlet of the dry quenching oven waste heat boiler 40 is communicated with the smoke inlet of the dry quenching oven 30.
When the system is in operation, flue gas (mainly nitrogen and carbon dioxide) discharged by the heat recovery coke oven 10 enters the heat recovery coke oven waste heat boiler 20, after being cooled by absorbed heat, the flue gas enters the dry quenching oven 30 to absorb the sensible heat temperature rise of red coke, the flue gas after the temperature rise enters the dry quenching oven waste heat boiler 40, after being cooled by the absorbed heat, the flue gas returns to the dry quenching oven 30 again to circulate, and then the flue gas is always used as circulating gas in the dry quenching oven 30 and the dry quenching oven waste heat boiler 40.
The system takes the flue gas exhausted by the heat recovery coke oven 10 as the circulating gas entering and exiting the dry quenching oven 30, and can achieve the following technical effects:
1. Further recovering the discharged flue gas of the heat recovery coke oven 10, wherein the utilization rate of the flue gas of the heat recovery coke oven 10 reaches more than 90%, and the discharged flue gas of the dry quenching oven 30 reaches theoretical zero emission.
2. The problem of burning loss of coke caused by air introduction is avoided, the coke burning loss can be reduced by about 2% by effectively treating the coke in the coupling system.
In one embodiment, the flue gas desulfurization system further comprises a desulfurization dust remover 50, wherein the flue gas outlet of the heat recovery coke oven waste heat boiler 20 and the flue gas outlet of the dry quenching coke oven waste heat boiler 40 are both communicated with the inlet of the desulfurization dust remover 50, and the outlet of the desulfurization dust remover 50 is communicated with the flue gas inlet of the dry quenching coke oven 30.
The desulfurization dust remover 50 can perform desulfurization dust removal on the flue gas discharged by the heat recovery coke oven waste heat boiler 20 and the dry quenching coke oven waste heat boiler 40, so as to ensure the safe and stable operation of the system.
In one embodiment, the device further comprises a dry quenching furnace 30 gas circulation device 60, wherein an inlet of the dry quenching furnace 30 gas circulation device 60 is communicated with an outlet of the desulfurization dust remover 50, and an outlet of the dry quenching furnace 30 gas circulation device 60 is communicated with a smoke inlet of the dry quenching furnace 30.
The design of the gas circulation device 60 of the dry quenching furnace 30 can enable the moving speed of the flue gas to be faster and the circulation efficiency to be higher when the system is operated.
In one embodiment, the system further comprises a primary dust remover 70, wherein the inlet of the primary dust remover 70 is communicated with the smoke outlet of the dry quenching furnace 30, and the outlet of the primary dust remover 70 is communicated with the smoke inlet of the dry quenching furnace waste heat boiler 40.
The design of the primary dust remover 70 can remove dust again on the flue gas discharged by the dry quenching furnace 30, and further ensures the safe and stable operation of the system.
In one embodiment, the device further comprises a circulating fan 80, wherein an inlet of the circulating fan 80 is communicated with a smoke outlet of the dry quenching furnace waste heat boiler 40, and an outlet of the circulating fan 80 is communicated with a smoke inlet of the dry quenching furnace 30.
While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. A coupled recycle gas system of a heat recovery coke oven and a dry quenching coke oven, characterized in that: the device comprises a heat recovery coke oven, a heat recovery coke oven waste heat boiler, a dry quenching oven and a dry quenching oven waste heat boiler;
The smoke inlet of the heat recovery coke oven waste heat boiler is communicated with the smoke outlet of the heat recovery coke oven, the smoke outlet of the heat recovery coke oven waste heat boiler is communicated with the smoke inlet of the dry quenching oven, the smoke outlet of the dry quenching oven is communicated with the smoke inlet of the dry quenching oven waste heat boiler, and the smoke outlet of the dry quenching oven waste heat boiler is communicated with the smoke inlet of the dry quenching oven.
2. The coupled recycle gas system of a heat recovery coke oven and a dry quenching coke oven according to claim 1, wherein: the flue gas outlet of the heat recovery coke oven waste heat boiler and the flue gas outlet of the dry quenching coke oven waste heat boiler are communicated with the inlet of the desulfurization dust remover, and the outlet of the desulfurization dust remover is communicated with the flue gas inlet of the dry quenching coke oven.
3. The coupled recycle gas system of a heat recovery coke oven and a dry quenching coke oven according to claim 2, wherein: the device also comprises a dry quenching furnace gas circulation device, wherein an inlet of the dry quenching furnace gas circulation device is communicated with an outlet of the desulfurization dust remover, and an outlet of the dry quenching furnace gas circulation device is communicated with a smoke inlet of the dry quenching furnace.
4. The coupled recycle gas system of a heat recovery coke oven and a dry quenching coke oven according to claim 1, wherein: the coke dry quenching furnace waste heat boiler further comprises a primary dust remover, wherein an inlet of the primary dust remover is communicated with a smoke outlet of the coke dry quenching furnace, and an outlet of the primary dust remover is communicated with a smoke inlet of the coke dry quenching furnace waste heat boiler.
5. The coupled recycle gas system of a heat recovery coke oven and a dry quenching coke oven according to claim 4, wherein: the device also comprises a circulating fan, wherein an inlet of the circulating fan is communicated with a smoke outlet of the waste heat boiler of the dry quenching furnace, and an outlet of the circulating fan is communicated with a smoke inlet of the dry quenching furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322842034.2U CN220951648U (en) | 2023-10-23 | 2023-10-23 | Coupling recycling gas system of heat recovery coke oven and dry quenching coke oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322842034.2U CN220951648U (en) | 2023-10-23 | 2023-10-23 | Coupling recycling gas system of heat recovery coke oven and dry quenching coke oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220951648U true CN220951648U (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322842034.2U Active CN220951648U (en) | 2023-10-23 | 2023-10-23 | Coupling recycling gas system of heat recovery coke oven and dry quenching coke oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220951648U (en) |
-
2023
- 2023-10-23 CN CN202322842034.2U patent/CN220951648U/en active Active
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