CN202322894U - Air supply system of baking oven of blast-furnace hot blast stove - Google Patents
Air supply system of baking oven of blast-furnace hot blast stove Download PDFInfo
- Publication number
- CN202322894U CN202322894U CN2011204172121U CN201120417212U CN202322894U CN 202322894 U CN202322894 U CN 202322894U CN 2011204172121 U CN2011204172121 U CN 2011204172121U CN 201120417212 U CN201120417212 U CN 201120417212U CN 202322894 U CN202322894 U CN 202322894U
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- China
- Prior art keywords
- natural gas
- gas
- stove
- petroleum gas
- hot blast
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Abstract
The utility model discloses an air supply system of a backing oven of a blast-furnace hot blast stove, which comprises a liquefied petroleum gas supply device, wherein a petroleum gas liquid-phase pipe is connected to the bottom of the liquefied petroleum gas supply device and is communicated with a hot blast stove liquid-phase combustor; a liquefied petroleum gas gasifying furnace is connected to the petroleum gas liquid-phase pipe; a first pressure adjusting device is connected to an outlet of the gasifying furnace. The air supply system also comprises a liquefied natural gas supply device, wherein a natural gas gasifying furnace is connected to the liquefied natural gas supply device through a natural gas liquid-phase pipe; a second pressure adjusting device is connected to the outlet of the natural gas gasifying furnace through a natural gas gas-phase pipe; and an outlet of the second pressure adjusting device and the outlet of the first pressure adjusting device are connected in parallel and are communicated with the hot blast stove liquid-phase combustor. The air supply system disclosed by the utility model can solve the technical problem of stove burning of the hot blast stove by liquefied natural gas and the problem of poor supply guarantee, also solves the problem that liquefied gas is high in cost when being used independently and provides convenience for proprietors to adopt a most economic fuel supply scheme according to market conditions.
Description
Technical field
The utility model relates to a kind of airing system of blast funnace hot blast stove baker.
Background technology
Hotblast stove baker, blast oven are the previous works that blast furnace must carry out before putting into operation, its objective is the intravital moisture of stoving oven, and make body of heater reach the intensity of processing requirement, thereby create conditions for the normal use of blast furnace, hotblast stove.The quality of baker effect has directly determined the work-ing life of blast furnace and hotblast stove.
The distinguishing feature of blast furnace and the operation of hotblast stove baker is that the time is longer, and the thermal load in baker early stage and baker later stage differs greatly.Furnace drying time was generally 35 ~ 45 days, and the thermal load in baker early stage and baker later stage generally differs 50 ~ 80 times.Use hotblast stove liquid-phase combustion device and/or hotblast stove gaseous combustion device during baker.
The fuel that baker is commonly used at present has diesel oil, coal gas, natural gas liquids (LNG), LPG liquefied petroleum gas etc.Use the combustion efficacy of diesel oil baker relatively poor; Use coal gas then to be supplied the restriction of condition; The defective of using compressed natural gas (CNG) is the needs that the transportcapacity of compressed natural gas is difficult to satisfy baker later stage (high heat load) gas consumption.
It is better that natural gas liquids (LNG) carries out the baker effect, but when carrying out hot blast stove burning, the safety of its supply is relatively poor.The advantage of natural gas liquids is that price is lower and more stable, and to be that, imbalance between supply and demand little owing to output is relatively more outstanding be difficult to provide reliable supply bond to its defective.
The requirement to each side such as combustion efficacy, environment protection, transportcapacities of blast furnace and hotblast stove baker can be fully satisfied in reasonable selection when LPG liquefied petroleum gas is blast furnace and hotblast stove baker.But the LPG liquefied petroleum gas price is higher and seasonal fluctuation is bigger.
There are not to utilize simultaneously natural gas liquids and LPG liquefied petroleum gas to carry out the airing system of blast funnace hot blast stove baker in the market; Can't bring into play the advantage of natural gas liquids (baker is effective) and LPG liquefied petroleum gas (supply is stable) simultaneously, avoid its deficiency simultaneously.
The utility model content
The purpose of the utility model is to provide a kind of airing system that can bring into play the advantage of natural gas liquids and LPG liquefied petroleum gas simultaneously and remedy the blast funnace hot blast stove baker of the two defective.
For realizing above-mentioned purpose; The airing system of the blast funnace hot blast stove baker of the utility model comprises the LPG supply device; The bottom of LPG supply device is connected with the petroleum gas liquid-phase tube; The petroleum gas liquid-phase tube is connected with hotblast stove liquid-phase combustion device, and the petroleum gas liquid-phase tube also is connected with the LPG liquefied petroleum gas gasification burner, and the outlet of LPG liquefied petroleum gas gasification burner is connected with first voltate regulator; The airing system of this blast funnace hot blast stove baker also includes the natural gas liquids feeding mechanism; The natural gas liquids feeding mechanism has the natural gas vaporization stove through Sweet natural gas liquid phase pipe coupling; The outlet of natural gas vaporization stove has second voltate regulator through Sweet natural gas gas phase pipe coupling, is connected with hotblast stove gaseous combustion device after the outlet parallel connection of the outlet of second voltate regulator and first voltate regulator.
The top of LPG supply device is connected with petroleum gas gas phase pipe, and petroleum gas gas phase pipe is connected with the import of said first voltate regulator.
The exit of the exit of said second voltate regulator and said first voltate regulator is respectively equipped with under meter.
The utlity model has following advantage:
1. when work after gasifying liquefied petroleum gas, the pressure regulation and through the Sweet natural gas proportional mixing of pressure regulation, both can be used for early stage hotblast stove baker and used, and also can be used for the later stage hot blast stove burning.The safety and the security of air feed all are guaranteed; The utility model both can have been separated natural gas liquids (LNG) and carry out the technical problem of hot blast stove burning and the problem of supply guarantee property difference, also can solve independent use LPG liquefied petroleum gas price problem of higher.The utility model adopts the plenum system of LPG liquefied petroleum gas blending natural gas liquids (LNG); The flexibility of baker burner and the handiness of airing system have been improved; For the flexible selection of fuel provides technical guarantee; Thereby at utmost the baker cost of fuel economy expense and blast furnace and hotblast stove makes things convenient for the owner to adopt most economical supply of fuel scheme according to market situation (factors such as the price of natural gas liquids and LPG liquefied petroleum gas, apparent availability).
2. the setting of petroleum gas gas phase pipe is convenient to the gas phase petroleum gas at LPG supply device top is transferred out the use of confession burning baker.
3. the setting of under meter is convenient to monitor the flow of LPG liquefied petroleum gas and Sweet natural gas.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
As shown in Figure 1; The airing system of the blast funnace hot blast stove baker of the utility model; Comprise LPG supply device 1 (this feeding mechanism can be a liquefied petroleum gas tank vehicle, also can be other natural gas supply device), the bottom of LPG supply device 1 is connected with petroleum gas liquid-phase tube 2; Petroleum gas liquid-phase tube 2 is connected with the liquid-phase combustion device 6 of hotblast stove, and petroleum gas liquid-phase tube 2 also is connected with LPG liquefied petroleum gas gasification burner 7; The outlet of LPG liquefied petroleum gas gasification burner is connected with first voltate regulator 4.
The airing system of this blast funnace hot blast stove baker also includes natural gas liquids feeding mechanism 8, and (this feeding mechanism can be the natural gas liquids tank car; Also can be other natural gas supply device); Natural gas liquids feeding mechanism 8 is connected with natural gas vaporization stove 11 through Sweet natural gas liquid phase pipe 9; Be connected with hotblast stove gaseous combustion device 5 after the outlet of natural gas vaporization stove 11 is connected with second voltate regulator, 13, the second voltate regulators 13 through Sweet natural gas gas phase pipe 12 outlet and the outlet parallel connection of first voltate regulator 4.
The top of LPG supply device 1 is connected with petroleum gas gas phase pipe 3, and petroleum gas gas phase pipe 3 is connected with the import of said first voltate regulator 4.The exit of the exit of said second voltate regulator 13 and said first voltate regulator 4 is respectively equipped with under meter 14.
During use, act as a fuel like independent use natural gas liquids (LNG), can be the hot-blast furnace temperature baking to 1250 ℃.Use the mixed liquefied petroleum gas of natural gas liquids (LNG) to carry out hot blast stove burning,, both can be used for early stage hotblast stove baker and used, also can be used for the later stage hot blast stove burning after gasifying liquefied petroleum gas, the pressure regulation and through the Sweet natural gas proportional mixing of pressure regulation.The safety and the security of air feed all are guaranteed; The utility model both can have been separated natural gas liquids (LNG) and carry out the technical problem of hot blast stove burning and the problem of supply guarantee property difference, also can solve independent use LPG liquefied petroleum gas price problem of higher.The utility model adopts the plenum system of LPG liquefied petroleum gas blending natural gas liquids (LNG); The flexibility of baker burner and the handiness of airing system have been improved; For the flexible selection of fuel provides technical guarantee; Thereby at utmost the baker cost of fuel economy expense and blast furnace and hotblast stove makes things convenient for the owner to adopt most economical supply of fuel scheme according to market situation (factors such as the price of natural gas liquids and LPG liquefied petroleum gas, apparent availability).
Claims (3)
1. the airing system of blast funnace hot blast stove baker; Comprise the LPG supply device; It is characterized in that: the bottom of LPG supply device is connected with the petroleum gas liquid-phase tube; The petroleum gas liquid-phase tube is connected with hotblast stove liquid-phase combustion device, and the petroleum gas liquid-phase tube also is connected with the LPG liquefied petroleum gas gasification burner, and the outlet of LPG liquefied petroleum gas gasification burner is connected with first voltate regulator;
The airing system of this blast funnace hot blast stove baker also includes the natural gas liquids feeding mechanism; The natural gas liquids feeding mechanism has the natural gas vaporization stove through Sweet natural gas liquid phase pipe coupling; The outlet of natural gas vaporization stove has second voltate regulator through Sweet natural gas gas phase pipe coupling, is connected with hotblast stove gaseous combustion device after the outlet parallel connection of the outlet of second voltate regulator and first voltate regulator.
2. the airing system of blast funnace hot blast stove baker according to claim 1 is characterized in that: the top of LPG supply device is connected with petroleum gas gas phase pipe, and petroleum gas gas phase pipe is connected with the import of said first voltate regulator.
3. the airing system of blast funnace hot blast stove baker according to claim 1 and 2 is characterized in that: the exit of the exit of said second voltate regulator and said first voltate regulator is respectively equipped with under meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204172121U CN202322894U (en) | 2011-10-28 | 2011-10-28 | Air supply system of baking oven of blast-furnace hot blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204172121U CN202322894U (en) | 2011-10-28 | 2011-10-28 | Air supply system of baking oven of blast-furnace hot blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202322894U true CN202322894U (en) | 2012-07-11 |
Family
ID=46434881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204172121U Expired - Fee Related CN202322894U (en) | 2011-10-28 | 2011-10-28 | Air supply system of baking oven of blast-furnace hot blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202322894U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108315520A (en) * | 2018-05-09 | 2018-07-24 | 秦皇岛秦冶重工有限公司 | Hot-blast stove baking oven system, blast oven system and furnace drying method |
| CN110110986A (en) * | 2019-04-29 | 2019-08-09 | 东莞市盛源石油化工有限公司 | A kind of comprehensive energy supply system and its business model |
-
2011
- 2011-10-28 CN CN2011204172121U patent/CN202322894U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108315520A (en) * | 2018-05-09 | 2018-07-24 | 秦皇岛秦冶重工有限公司 | Hot-blast stove baking oven system, blast oven system and furnace drying method |
| CN110110986A (en) * | 2019-04-29 | 2019-08-09 | 东莞市盛源石油化工有限公司 | A kind of comprehensive energy supply system and its business model |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20121028 |