CN203295552U - Energy-saving and environmental-friendly RH vacuum refining device - Google Patents
Energy-saving and environmental-friendly RH vacuum refining device Download PDFInfo
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- CN203295552U CN203295552U CN2013202652941U CN201320265294U CN203295552U CN 203295552 U CN203295552 U CN 203295552U CN 2013202652941 U CN2013202652941 U CN 2013202652941U CN 201320265294 U CN201320265294 U CN 201320265294U CN 203295552 U CN203295552 U CN 203295552U
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Abstract
The utility model relates to an energy-saving and environmental-friendly RH vacuum refining device which comprises a steel water tank (3), a vacuum chamber (5) and a full mechanical pump vacuum system (8) connected with the vacuum chamber (5), wherein a rising pipe (4) and a lowering pipe (6) are arranged at the lower end of the vacuum chamber (5) and extend into the steel water tank (3); an argon blowing device (1) is arranged at the bottom of the steel water tank (3); the argon blowing device (1) is right under the rising pipe (4). The energy-saving and environmental-friendly RH vacuum refining device establishes the combination of steel liquid circulation and the full mechanical vacuum pump system by blowing argon at the bottom of the steel water tank, so as to save energy and cost and protect the environment.
Description
Technical field
The utility model relates to steel-making RH technology field, more particularly, relates to a kind of energy saving and environment friendly RH equipment for vacuum refining.
Background technology
Along with the development of Chinese national economy, the user constantly enlarges the demand of rolling shapes, to the also raising day by day of requirement of steel product quality.From technique itself and experience, RH is that the vacuum-treat technology has become a kind of expansion product scope, one of the effective means of improving the quality of products.
Though the pattern of the existing RH vacuum treatment installation of domestic each steel mill has difference, in the mode of setting up the molten steel circulation, and, in the selection of vacuum system exhaust capacity, all follows identity principle.
1) set up the mode of molten steel circulation: the vacuum chamber tubular stinger is immersed in the molten steel in ladle in several ways, from upcast, be blown into the drive of argon gas, and, under the effect of the interior vacuum of vacuum chamber, formed a molten steel stream that constantly circulates between vacuum chamber and ladle.Bring the molten steel after vacuum refinement in vacuum chamber into ladle and mix, and unreacted molten steel in ladle is brought in vacuum chamber and carried out vacuum refinement.
2) selection of vacuum system exhaust capacity: although vacuum system has different technical schemes: pressure decatizing vapour squirt pump vacuum system, final stage are joined the vapor jet pump vacuum system of rotary pump with liquid ring, full oil-sealed rotary pump vacuum system; but when selecting the vacuum system exhaust capacity; all need to consider discharge quantity, lift gas flow, the various protection tolerance of molten steel, and the factor such as air leakage quantity of vacuum system.Although full oil-sealed rotary pump vacuum system has been saved steam consumption quantity greatly than the vapor jet pump vacuum system, the exhaust capacity of RH vacuum system is all many greatly with the exhaust capacity of tonnage VD, wherein still has the potential to be tapped.
We must seek a kind of process technology scheme of energy saving and environment friendly RH equipment for vacuum refining newly, be about to a kind of new mode of setting up the molten steel circulation and the process technology scheme that full oil-sealed rotary pump vacuum system combines, reach the purpose of at utmost energy-conserving and environment-protective.
The utility model content
The technical problems to be solved in the utility model is, a kind of energy saving and environment friendly RH equipment for vacuum refining is provided.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of energy saving and environment friendly RH equipment for vacuum refining, comprise ladle and vacuum chamber, the lower end of described vacuum chamber is provided with upcast and downtake, described upcast and downtake stretch in described ladle, the bottom of described ladle is provided with argon-blowing device, described argon-blowing device be positioned at described upcast under, described a refining unit also comprises the full mechanical pump vacuum system that is connected with described vacuum chamber.
In energy saving and environment friendly RH equipment for vacuum refining described in the utility model, described a refining unit also comprises the preposition flare system that is connected between described vacuum chamber and described full mechanical pump vacuum system.
In energy saving and environment friendly RH equipment for vacuum refining described in the utility model, described a refining unit also comprises transport trolley, and described ladle is placed on described transport trolley.
Implement energy saving and environment friendly RH equipment for vacuum refining of the present utility model, have following beneficial effect:
1) adopt the ladle argon bottom-blowing to substitute as promoting gas the argon gas that former upcast place is blown into, the stroke of Argon Bubble is long, and acting increases, and reaches identical molten steel circular flow, can save argon flow amount more than 50%;
2) due to argon flow amount, reduce, the exhaust capacity of vacuum system can reduce approximately more than 20%, so the utility model vacuum system adopts full oil-sealed rotary pump, with electric energy, substitutes steam fully, reduces the equipment one-time investment, strengthens the competitive power of full oil-sealed rotary pump;
3) adopt the ladle argon bottom-blowing to set up the molten steel circulation and combine with full oil-sealed rotary pump vacuum system, energy-conserving and environment-protective, cost-saving.
The accompanying drawing explanation
The utility model is described in further detail below in conjunction with drawings and Examples, in accompanying drawing:
Fig. 1 is the structural representation of the energy saving and environment friendly RH equipment for vacuum refining of the utility model.
Embodiment
For technical characterictic of the present utility model, purpose and effect being had more clearly, understand, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
As shown in Figure 1, the energy saving and environment friendly RH equipment for vacuum refining of the utility model comprises ladle 3 and vacuum chamber 5.
The lower end of vacuum chamber 5 is provided with upcast 4 and downtake 6, and upcast 4 and downtake 6 stretch in ladle 3.The bottom of ladle 3 is provided with argon-blowing device 1, argon-blowing device 1 be positioned at upcast 4 under, the argon gas that blows out enters in vacuum chamber 5 by upcast 4.Adopt ladle 3 argon bottom-blowings to substitute as promoting gas the argon gas that former upcast 4 places are blown into, the stroke of Argon Bubble is long, and acting increases, and reaches identical molten steel circular flow, can save argon flow amount more than 50%.
A refining unit also comprises the full mechanical pump vacuum system 8 that is connected with vacuum chamber 5.Because argon flow amount reduces, the exhaust capacity of vacuum system can reduce approximately more than 20%, so the utility model adopts full oil-sealed rotary pump vacuum system, with electric energy, substitutes steam fully, reduces the equipment one-time investment, strengthens the competitive power of full oil-sealed rotary pump.
Further, a refining unit also comprises preposition flare system 7.Preposition flare system 7 is connected between vacuum chamber 5 and full mechanical pump vacuum system 8, for the treatment of the waste gas of vacuum chamber 5 discharges.
Further, a refining unit also comprises transport trolley 2, and ladle 3 is placed on transport trolley 2.
The above is described embodiment of the present utility model by reference to the accompanying drawings; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away from the scope situation that the utility model aim and claim protect, also can make a lot of forms, within these all belong to protection of the present utility model.
Claims (3)
1. energy saving and environment friendly RH equipment for vacuum refining, comprise ladle (3) and vacuum chamber (5), the lower end of described vacuum chamber (5) is provided with upcast (4) and downtake (6), described upcast (4) and downtake (6) stretch in described ladle (3), it is characterized in that, the bottom of described ladle (3) is provided with argon-blowing device (1), described argon-blowing device (1) be positioned at described upcast (4) under, described a refining unit also comprises the full mechanical pump vacuum system (8) that is connected with described vacuum chamber (5).
2. energy saving and environment friendly RH equipment for vacuum refining according to claim 1, is characterized in that, described a refining unit also comprises the preposition flare system (7) that is connected between described vacuum chamber (5) and described full mechanical pump vacuum system (8).
3. energy saving and environment friendly RH equipment for vacuum refining according to claim 1, is characterized in that, described a refining unit also comprises transport trolley (2), and described ladle (3) is placed on described transport trolley (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202652941U CN203295552U (en) | 2013-05-15 | 2013-05-15 | Energy-saving and environmental-friendly RH vacuum refining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202652941U CN203295552U (en) | 2013-05-15 | 2013-05-15 | Energy-saving and environmental-friendly RH vacuum refining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203295552U true CN203295552U (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202652941U Expired - Fee Related CN203295552U (en) | 2013-05-15 | 2013-05-15 | Energy-saving and environmental-friendly RH vacuum refining device |
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| CN (1) | CN203295552U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266200A (en) * | 2013-05-15 | 2013-08-28 | 中冶南方工程技术有限公司 | Energy-saving environment-friendly RH (relative humidity) vacuum refining device |
| CN106319156A (en) * | 2015-06-16 | 2017-01-11 | 鞍钢股份有限公司 | RH refining device for improving decarburization effect and control method thereof |
| CN109652615A (en) * | 2019-01-25 | 2019-04-19 | 钢铁研究总院 | A method of improving RH refining process molten steel circular flow |
-
2013
- 2013-05-15 CN CN2013202652941U patent/CN203295552U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266200A (en) * | 2013-05-15 | 2013-08-28 | 中冶南方工程技术有限公司 | Energy-saving environment-friendly RH (relative humidity) vacuum refining device |
| CN106319156A (en) * | 2015-06-16 | 2017-01-11 | 鞍钢股份有限公司 | RH refining device for improving decarburization effect and control method thereof |
| CN106319156B (en) * | 2015-06-16 | 2018-06-26 | 鞍钢股份有限公司 | RH refining device for improving decarburization effect and control method thereof |
| CN109652615A (en) * | 2019-01-25 | 2019-04-19 | 钢铁研究总院 | A method of improving RH refining process molten steel circular flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: WISDRI (WUHAN) HEAVY MACHINERY Co.,Ltd. Assignor: WISDRI ENGINEERING & RESEARCH Inc.,Ltd. Contract record no.: 2014420000046 Denomination of utility model: Energy-saving environment-friendly RH (relative humidity) vacuum refining device Granted publication date: 20131120 License type: Exclusive License Record date: 20140422 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |