CN201842857U - Double-station device for RH dry-process vacuum pumping system - Google Patents
Double-station device for RH dry-process vacuum pumping system Download PDFInfo
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- CN201842857U CN201842857U CN2010205808356U CN201020580835U CN201842857U CN 201842857 U CN201842857 U CN 201842857U CN 2010205808356 U CN2010205808356 U CN 2010205808356U CN 201020580835 U CN201020580835 U CN 201020580835U CN 201842857 U CN201842857 U CN 201842857U
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Abstract
The utility model discloses a double-station device for an RH dry-process vacuum pumping system, which comprises two vacuum tanks. A cooling and dedusting device and a differential pressure switching device are sequentially and communicatively arranged corresponding to the steelmaking process gas outlet of each vacuum tank. The differential pressure switching device comprises an electric-control vacuum main valve which is arranged on a steelmaking process gas path and an electric-control vacuum bypass valve which is connected with the electric-control vacuum main valve in parallel. The steelmaking process gas outlets of the respective differential pressure switching devices of the two vacuum tanks converge to form a process gas main outlet which is communicated with the dry-process vacuum pump unit of the RH dry-process vacuum pumping system. Each station of two stations is provided with the independent cooling and dedusting device and the independent differential pressure switching device. When the double-station device is used, the opening and the closing of the vacuum main valve and the vacuum bypass valve are controlled through the differential pressure switching devices. Not only can one station work solely but also the two stations can work simultaneously. Moreover, the process requirements on different vacuum degrees required during the treatment of steel at different grades can be satisfied, the production efficiency is high, the same vacuum pump unit is shared and the equipment investment cost is low.
Description
Technical field
The utility model relates to the parts of the steel secondary refining device that is used for production high-quality steel, particularly a kind of parts that are used for RH dry type pumped vacuum systems.
Background technology
The RH vacuum processing technique is a kind of steel secondary refining technology that is used for production high-quality steel, in the whole technology, the molten steel metallurgical reaction is to carry out in block has the vacuum tank of refractory lining, vacuum tank top is provided with the process gas outlet, be used for the process gas extraction is made the vacuum tightness that reaches required in the vacuum tank, RH dry type pumped vacuum systems adopts dry vacuum pump that process gas is carried out pump drainage.When refining difference steel grade, the desired vacuum tightness of technology has nothing in common with each other, mainly contain light processing, this processing, ultra low-carbon steel is handled, unkilled steel is handled, deoxidized steel is handled five big process modelings, the material that each technology requires to add also has nothing in common with each other, for improving refining efficiency, needing increases whole plant or increase station on a set of equipment, but it is higher to increase the required cost of whole plant, on a set of equipment, increase station and can not solve the requirement that two stations are realized different vacuum tightnesss respectively and added different material, therefore, existing pumped vacuum systems generally adopts the mode of single station, and the same time can only be carried out the processing of a steel grade, and production efficiency is lower.
At above-mentioned deficiency, need to explore a kind of device that less cost can improve steel secondary refining efficient that spends.
Summary of the invention
In view of this, the utility model provides a kind of double device of the RH of being used for dry type pumped vacuum systems, this device adopts the double structure, independent control, can move by single station, also can move simultaneously according to the processing requirement double of different steel grades and handle different steel grades, equipment cost is lower, and production efficiency improves.
The double device that is used for RH dry type pumped vacuum systems of the present utility model, comprise two vacuum tanks, export with the process for making gas of each vacuum tank and corresponding one by one the connection successively to be provided with cooling and dedusting device and differential pressure shifter, described differential pressure shifter comprises electric controlled vacuum main valve that is arranged on the process for making gas circuit and the electric controlled vacuum by-pass valve that is arranged in parallel with the electric controlled vacuum main valve, and two vacuum tanks process for making gas outlet of corresponding differential pressure shifter respectively converge and are formed for the process gas general export that is communicated with the dry vacuum pump group of RH dry type pumped vacuum systems.
Further, the double device of the described RH of being used for dry type pumped vacuum systems also comprises two material adding sets with the corresponding one by one setting of vacuum tank, and described material adding set comprises vacuum feeding pipe and at least two discharge components that are communicated with the vacuum feeding pipe that are communicated with vacuum tank;
Further, described discharge component is 12, comprise placed in-line successively normal pressure hopper, automatically controlled discharge valve I, weighing device, automatically controlled discharge valve II, vacuum hopper and automatically controlled discharge valve III from top to bottom, described vacuum hopper is communicated with the vacuum feeding pipe by automatically controlled discharge valve III.
The beneficial effect of utility model: the double device that is used for RH dry type pumped vacuum systems of the present utility model, comprise two vacuum tanks, export with the process for making gas of each vacuum tank and corresponding one by one the connection successively to be provided with cooling and dedusting device and differential pressure shifter, described differential pressure shifter comprises electric controlled vacuum main valve that is arranged on the process for making gas circuit and the electric controlled vacuum by-pass valve that is arranged in parallel with the electric controlled vacuum main valve, two vacuum tanks process for making gas outlet of corresponding differential pressure shifter respectively converge and are formed for the process gas general export that is communicated with the dry vacuum pump group of RH dry type pumped vacuum systems, each station all has independently cooling and dedusting device and differential pressure shifter in the double, during use, keying by differential pressure shifter control vacuum main valve and vacuum by-pass valve, both can move by single station, also but double moves simultaneously, and the different processing requirement of required vacuum tightness when satisfying different steel grades and handling, the production efficiency height, shared same vacuum pump group, equipment investment cost is lower.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of discharge component.
Embodiment
Fig. 1 is a structural representation of the present utility model, Fig. 2 is the structural representation of discharge component, as shown in the figure: the double device that is used for RH dry type pumped vacuum systems of present embodiment, comprise two vacuum tanks 1 of identical in structure, the process for making gas outlet of each vacuum tank 1 connection successively is provided with cooling and dedusting device 2 and differential pressure shifter 3, described differential pressure shifter 3 comprises electric controlled vacuum main valve 3a that is arranged on the process for making gas circuit and the electric controlled vacuum by-pass valve 3b that is arranged in parallel with electric controlled vacuum main valve 3a, the outlet of the process for making gas of two the differential pressure shifters corresponding with each vacuum tank converges respectively, be formed for the process gas general export 4 that is communicated with the dry vacuum pump group of RH dry type pumped vacuum systems, each station is equipped with independently cooling and dedusting device and differential pressure shifter in the double, the cooling and dedusting device of present embodiment adopts directly curved refrigerating unit of built-up type and the placed in-line structure of explosion-proof separate type high-temperature particle refrigerating unit, during use, keying by control differential pressure shifter vacuum main valve and vacuum by-pass valve, both can realize single station operation, can realize that also double moves simultaneously, and the different processing requirement of required vacuum tightness in the time of satisfying different steel grades when double moves simultaneously and handle, the production efficiency height, two shared same vacuum pump groups of station, equipment investment cost is lower.
Further, also comprise respectively two material adding sets 5 with the corresponding one by one setting of each vacuum tank 1, described material adding set comprises vacuum feeding pipe 5a and at least two discharge components that are communicated with vacuum feeding pipe 5a that are communicated with vacuum tank 1, can be according to two stations processing requirement of handled different steel grades separately, add different material, make the double operation adapt to needs of production more.
Further, described discharge component is 12, comprise placed in-line successively normal pressure hopper 5b, automatically controlled discharge valve I 5c, weighing device 5d, automatically controlled discharge valve II 5e, vacuum hopper 5f and automatically controlled discharge valve III 5g from top to bottom, described vacuum hopper 5f is communicated with vacuum feeding pipe 5a by automatically controlled discharge valve III 5g, 12 discharge components are respectively applied for various materials such as adding carbon granules, ferrosilicon, aluminum shot, alloy, satisfy the RH dry type and vacuumize the processing requirement that liquid steel refining need add various materials.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (3)
1. double device that is used for RH dry type pumped vacuum systems, it is characterized in that: comprise two vacuum tanks (1), export with the process for making gas of each vacuum tank (1) and corresponding one by one the connection successively to be provided with cooling and dedusting device (2) and differential pressure shifter (3), described differential pressure shifter (3) comprises electric controlled vacuum main valve (3a) that is arranged on the process for making gas circuit and the electric controlled vacuum by-pass valve (3b) that is arranged in parallel with electric controlled vacuum main valve (3a), and two vacuum tanks process for making gas outlet of corresponding differential pressure shifter (3) respectively converge and are formed for the process gas general export (4) that is communicated with the dry vacuum pump group of RH dry type pumped vacuum systems.
2. the double device that is used for RH dry type pumped vacuum systems according to claim 1, it is characterized in that: comprise also and two material adding sets (5) of the corresponding one by one setting of vacuum tank (1) that described material adding set (5) comprises vacuum feeding pipe (5a) and at least two discharge components that are communicated with vacuum feeding pipe (5a) that are communicated with vacuum tank (1).
3. the double device that is used for RH dry type pumped vacuum systems according to claim 2, it is characterized in that: described discharge component is 12, comprise placed in-line successively normal pressure hopper (5b), automatically controlled discharge valve I (5c), weighing device (5d), automatically controlled discharge valve II (5e), vacuum hopper (5f) and automatically controlled discharge valve III (5g) from top to bottom, described vacuum hopper (5f) is communicated with vacuum feeding pipe (5a) by automatically controlled discharge valve III (5g).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205808356U CN201842857U (en) | 2010-10-28 | 2010-10-28 | Double-station device for RH dry-process vacuum pumping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205808356U CN201842857U (en) | 2010-10-28 | 2010-10-28 | Double-station device for RH dry-process vacuum pumping system |
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| Publication Number | Publication Date |
|---|---|
| CN201842857U true CN201842857U (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205808356U Expired - Fee Related CN201842857U (en) | 2010-10-28 | 2010-10-28 | Double-station device for RH dry-process vacuum pumping system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818367A (en) * | 2015-05-06 | 2015-08-05 | 中冶南方工程技术有限公司 | Twin-way vacuum refining system |
| CN104946856A (en) * | 2015-07-20 | 2015-09-30 | 中国重型机械研究院股份公司 | Multi-stage water vapor injecting pump arrangement mode |
| CN105821179A (en) * | 2015-01-07 | 2016-08-03 | 宝山钢铁股份有限公司 | Sealed equipment of refining RH alloy for removing residual gas and application thereof |
| CN107178928A (en) * | 2017-06-23 | 2017-09-19 | 松下制冷（大连）有限公司 | A kind of exhaust heat of slag flushing water extraction type cold/hot water machine of lithium bromide group |
| CN109402330A (en) * | 2018-12-28 | 2019-03-01 | 中冶京诚工程技术有限公司 | A kind of RH vacuum system adjusts vacuum plant and application |
| CN114182064A (en) * | 2021-11-08 | 2022-03-15 | 中冶南方工程技术有限公司 | Mechanical vacuum pump system and control method thereof |
-
2010
- 2010-10-28 CN CN2010205808356U patent/CN201842857U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105821179A (en) * | 2015-01-07 | 2016-08-03 | 宝山钢铁股份有限公司 | Sealed equipment of refining RH alloy for removing residual gas and application thereof |
| CN104818367A (en) * | 2015-05-06 | 2015-08-05 | 中冶南方工程技术有限公司 | Twin-way vacuum refining system |
| CN104946856A (en) * | 2015-07-20 | 2015-09-30 | 中国重型机械研究院股份公司 | Multi-stage water vapor injecting pump arrangement mode |
| CN104946856B (en) * | 2015-07-20 | 2017-01-04 | 中国重型机械研究院股份公司 | A kind of layout pattern of multi-level water steam jet pump |
| CN107178928A (en) * | 2017-06-23 | 2017-09-19 | 松下制冷（大连）有限公司 | A kind of exhaust heat of slag flushing water extraction type cold/hot water machine of lithium bromide group |
| CN107178928B (en) * | 2017-06-23 | 2022-12-13 | 松下制冷（大连）有限公司 | Slag flushing water waste heat extraction type lithium bromide absorption cold and hot water unit |
| CN109402330A (en) * | 2018-12-28 | 2019-03-01 | 中冶京诚工程技术有限公司 | A kind of RH vacuum system adjusts vacuum plant and application |
| CN114182064A (en) * | 2021-11-08 | 2022-03-15 | 中冶南方工程技术有限公司 | Mechanical vacuum pump system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20191028 |
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| CF01 | Termination of patent right due to non-payment of annual fee |