CN204829990U - Annular furnace gas pretreatment systems - Google Patents
Annular furnace gas pretreatment systems Download PDFInfo
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- CN204829990U CN204829990U CN201520630509.4U CN201520630509U CN204829990U CN 204829990 U CN204829990 U CN 204829990U CN 201520630509 U CN201520630509 U CN 201520630509U CN 204829990 U CN204829990 U CN 204829990U
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- air inlet
- inlet pipe
- annular furnace
- gas air
- blast furnace
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Abstract
The utility model discloses an annular furnace gas pretreatment systems, including natural gas intake pipe and blast furnace gas intake pipe, natural gas intake pipe and blast furnace gas intake pipe all communicate with mixed storehouse, it is equipped with the outlet duct to mix the storehouse, the outlet duct communicates respectively with each nozzle of annular furnace. According to the above structure, the utility model discloses an annular furnace gas pretreatment systems mixes after handling the natural gas respectively with blast furnace gas to supply the annular furnace to heat, can not only satisfy the interior calorific requirement of stove of annular furnace, still effectively reduced the manufacturing cost of enterprise simultaneously.
Description
Technical field
The utility model relates to seamless steel pipe and manufactures field, is specifically related to a kind of annular furnace combustion gas pretreatment system.
Background technology
Annular furnace is also known as rotary hearth furnace, for the heating process of steel rolling, heating steel billet, based on round billet, because annular furnace can adapt to the blank of plurality of specifications, blank three face is heated in addition, and the heat time is short, homogeneous temperature, i.e. thermal mass are good, and can rotate with furnace bottom, good leak tightness, is convenient to automated production, so usually for seamless steel pipe steel rolling mill.Annular furnace be all generally use natural gas, but due to natural gas be non-renewable energy, use cost is also higher in addition.And the main component in blast furnace gas is carbon monoxide, its cost is very low, and has certain reproducibility, also can provide certain heat; But due to the thermal Finite that blast furnace gas can produce, so cannot directly heat annular furnace.
Summary of the invention
The purpose of this utility model is: overcome the deficiencies in the prior art, a kind of annular furnace combustion gas pretreatment system is provided, after blast furnace gas is also mixed with natural gas processing, burns for annular furnace, ensure that the temperature in stove is up to standard, reduce the production cost of enterprise simultaneously.
Technical solution adopted in the utility model is:
Annular furnace combustion gas pretreatment system, comprise natural gas air inlet pipe and blast furnace gas air inlet pipe, described natural gas air inlet pipe is all communicated with mixing bunker with blast furnace gas air inlet pipe, and described mixing bunker is provided with escape pipe, and described escape pipe is communicated with respectively with each burner of annular furnace.
The further improvement project of the utility model is, described blast furnace gas air inlet pipe is communicated with supercharging device.
The utility model further improvement project is, described natural gas air inlet pipe is communicated with decompressor.
The utility model further improvement project is, the quantity of described decompressor is multiple.
The utility model further improvement project is, the gas pressure in the blast furnace gas air inlet pipe after supercharging is equal with the gas pressure in post-decompression natural gas air inlet pipe.
The utility model further improvement project is, the throughput of the blast furnace gas air inlet pipe after supercharging is through 3 ~ 5 times of the throughput of post-decompression natural gas air inlet pipe.
The beneficial effects of the utility model are:
Annular furnace combustion gas pretreatment system of the present utility model, mixes after being processed respectively by natural gas, heat for annular furnace with blast furnace gas, and institute's calorific requirement in the stove that can not only meet annular furnace, also effectively reduces the production cost of enterprise simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model structure.
Detailed description of the invention
As shown in Figure 1, the utility model comprises natural gas air inlet pipe 2 and blast furnace gas air inlet pipe 1, described natural gas air inlet pipe 2 is all communicated with mixing bunker 3 with blast furnace gas air inlet pipe 1, and described mixing bunker 3 is provided with escape pipe 4, and described escape pipe 4 is communicated with respectively with each burner of annular furnace; Described blast furnace gas air inlet pipe 1 is communicated with supercharging device 5; Described natural gas air inlet pipe 2 is communicated with decompressor 6; The quantity of described decompressor 6 is multiple (in the implementation case, the quantity of decompressor 6 is 2); Gas pressure in blast furnace gas air inlet pipe 1 after supercharging is equal with the gas pressure in post-decompression natural gas air inlet pipe 2; The throughput of the blast furnace gas air inlet pipe 1 after supercharging is through 3 ~ 5 times (in the implementation case, the throughput of the blast furnace gas air inlet pipe 1 after supercharging is through 4 times of the throughput of post-decompression natural gas air inlet pipe 2) of the throughput of post-decompression natural gas air inlet pipe.
Claims (6)
1. annular furnace combustion gas pretreatment system, it is characterized in that: comprise natural gas air inlet pipe (2) and blast furnace gas air inlet pipe (1), described natural gas air inlet pipe (2) is all communicated with mixing bunker (3) with blast furnace gas air inlet pipe (1), described mixing bunker (3) is provided with escape pipe (4), and described escape pipe (4) is communicated with respectively with each burner of annular furnace.
2. annular furnace combustion gas pretreatment system as claimed in claim 1, is characterized in that: described blast furnace gas air inlet pipe (1) is communicated with supercharging device (5).
3. annular furnace combustion gas pretreatment system as claimed in claim 1, is characterized in that: described natural gas air inlet pipe (2) is communicated with decompressor (6).
4. annular furnace combustion gas pretreatment system as claimed in claim 3, is characterized in that: the quantity of described decompressor (6) is multiple.
5. annular furnace combustion gas pretreatment system as claimed in claim 2 or claim 3, is characterized in that: the gas pressure in the blast furnace gas air inlet pipe (1) after supercharging is equal with the gas pressure in post-decompression natural gas air inlet pipe (2).
6. annular furnace combustion gas pretreatment system as claimed in claim 5, is characterized in that: the throughput of the blast furnace gas air inlet pipe (1) after supercharging is through 3 ~ 5 times of the throughput of post-decompression natural gas air inlet pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520630509.4U CN204829990U (en) | 2015-08-20 | 2015-08-20 | Annular furnace gas pretreatment systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520630509.4U CN204829990U (en) | 2015-08-20 | 2015-08-20 | Annular furnace gas pretreatment systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204829990U true CN204829990U (en) | 2015-12-02 |
Family
ID=54687587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520630509.4U Active CN204829990U (en) | 2015-08-20 | 2015-08-20 | Annular furnace gas pretreatment systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204829990U (en) |
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2015
- 2015-08-20 CN CN201520630509.4U patent/CN204829990U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |