CN113373280A - Method for shortening single-station RH vacuum chamber replacement time and RH vacuum chamber replacement device - Google Patents
Method for shortening single-station RH vacuum chamber replacement time and RH vacuum chamber replacement device Download PDFInfo
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- CN113373280A CN113373280A CN202110613743.6A CN202110613743A CN113373280A CN 113373280 A CN113373280 A CN 113373280A CN 202110613743 A CN202110613743 A CN 202110613743A CN 113373280 A CN113373280 A CN 113373280A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004904 shortening Methods 0.000 title claims abstract description 9
- 238000007670 refining Methods 0.000 claims abstract description 35
- 239000000498 cooling water Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000007872 degassing Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention relates to a method for shortening the replacing time of a single-station RH vacuum chamber and a RH vacuum chamber replacing device, which combine two original vacuum chamber transport vehicles of a single-treatment station RH into a longer double-vacuum chamber transport vehicle, can simultaneously complete the action that one of two vacuum chambers runs from a treatment station to a standby station and the other one runs from the standby station to the treatment station, reduces the non-production time of an RH vacuum refining furnace, and has the advantages of light weight, short total length and large operation area.
Description
Technical Field
The invention belongs to the field of steel-making vacuum refining in the metallurgical industry, and particularly relates to a method for shortening the replacing time of a single-station RH vacuum chamber and a replacing device of the RH vacuum chamber.
Background
With the development of economy, the demand of users on steel varieties is continuously expanded, and the requirements on the quality of steel are increasingly improved. From the process itself and experience, RH (vacuum cycle degassing) is one of the effective means for expanding the product range and improving the product quality.
At present, the existing RH vacuum refining furnace in a steel mill has two types of single treatment stations and double treatment stations. Generally speaking, the double-treatment station RH is formed by alternately using two treatment stations, so that the auxiliary operation time of ladle seating, ladle lifting, ladle car driving, wire feeding, soft stirring and the like can be saved, and the double-treatment station RH has a shorter treatment period and accounts for the majority in quantity. But the single treatment station RH has the advantages of energy conservation, low investment cost, small occupied area and high equipment operation rate, the auxiliary operation time can be effectively shortened after new types such as V-shaped double-ladle car type and ladle rotating type are available, and the single treatment station RH is also revived.
As shown in fig. 1, the conventional single processing station RH generally has one processing station and two standby stations, and is configured with two vacuum chambers, and the two vacuum chambers respectively fall on two vacuum chamber transport carts to work at the processing station or the standby station, where 11 in fig. 1 is a buggy ladle, 12 is a ladle, 13 is a steel platform, 14 is a vacuum system, 15 is a # 2 vacuum chamber, 16 is a # 2 vacuum chamber transport cart, 17 is a # 1 vacuum chamber, and 18 is a # 1 vacuum chamber transport cart. Taking the example that the No. 2 vacuum chamber continuously carries out vacuum refining treatment for a plurality of times at a treatment station until the refractory material of the No. 2 vacuum chamber is corroded and damaged and cannot be used, a No. 2 vacuum chamber transport vehicle is conveyed to a No. 2 standby station, is hoisted to a maintenance area by a workshop crane and is replaced by a new vacuum chamber; at the same time, the 1# vacuum chamber in the hot standby state at the 1# standby station is transported to the processing station by the 1# vacuum chamber transport vehicle, and the vacuum refining process can be continued. During the replacement of the vacuum chamber of the processing station, the RH vacuum refining furnace cannot perform production, so the shorter the vacuum chamber replacement time, the better.
Disclosure of Invention
The invention aims to provide a method for shortening the replacing time of a single-station RH vacuum chamber.
The specific scheme is as follows:
a method for shortening the replacement time of a single-station RH vacuum chamber applies to the single-station RH vacuum refining furnace, the single-station RH vacuum refining furnace is provided with a 1# standby station, a processing station and a 2# standby station, two vacuum chambers are simultaneously arranged on the same vacuum chamber transport vehicle for one use and one standby, the two vacuum chambers are respectively defined as a first vacuum chamber and a second vacuum chamber, the positions of the first vacuum chamber and the second vacuum chamber on the vacuum chamber transport vehicle are determined by the positions of the 1# standby station, the processing station and the 2# standby station of the single-station RH vacuum refining furnace, when the first vacuum chamber is positioned at the processing station, the second vacuum chamber is positioned at the 2# standby station, and when the second vacuum chamber is positioned at the processing station, the first vacuum chamber is positioned at the 1# standby station; and during replacement, the vacuum chamber to be replaced is conveyed to the corresponding standby process through the operation of the vacuum chamber transport vehicle, and meanwhile, the standby vacuum chamber is conveyed to the processing station.
The invention also provides a RH vacuum chamber replacing device.
The specific scheme is as follows:
the utility model provides a real empty room of RH changes device, it uses on the single-station RH vacuum refining furnace, and single-station RH vacuum refining furnace has 1# standby station, processing station and 2# standby station, including a pair of real empty room transport vechicle, install first real empty room and the second real empty room on two real empty room transport vechicles, first real empty room 2 and the position of second real empty room on two real empty room transport vechicles are confirmed by the position of 1# standby station, processing station and 2# standby station of single-station RH vacuum refining furnace, when first real empty room is located processing station, second real empty room is located 2# standby station, when second real empty room is located processing station, first real empty room is located 1# standby station.
Further, the double-vacuum-chamber transport vehicle is provided with a gas valve station, a cooling water valve station, a connecting pipeline and a maintenance platform.
Furthermore, the double-vacuum-chamber transport vehicle is provided with a drag chain, and various energy media can be conveyed to the double-vacuum-chamber transport vehicle through the drag chain.
Further, the double-vacuum-chamber transport vehicle is provided with one group of drives or two groups of drives.
Furthermore, the double-vacuum-chamber transport vehicle is provided with three groups of wheels which are respectively arranged at two ends of the double-vacuum-chamber transport vehicle and in the middle of the double vacuum chambers.
Compared with the prior art, the method for shortening the replacing time of the single-station RH vacuum chamber has the following advantages that: the original two vacuum chamber transport vehicles of the single-station RH vacuum refining furnace are combined into a longer double-vacuum chamber transport vehicle, so that the actions that one of the two vacuum chambers runs from the processing station to the standby station and the other of the two vacuum chambers runs from the standby station to the processing station can be simultaneously completed, the non-production time of the RH vacuum refining furnace is reduced, and the RH vacuum refining furnace has the advantages of light weight, short total length and large operation area.
Drawings
FIG. 1 shows a schematic view of a prior art single station RH vacuum refining furnace.
FIG. 2 shows a schematic view of a single-station RH vacuum refining furnace according to the present invention.
Detailed Description
To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The invention will now be further described with reference to the accompanying drawings and detailed description.
Aiming at the defects of the prior single-station RH vacuum refining furnace, the invention provides an RH vacuum chamber replacing device which comprises a double-vacuum chamber transport vehicle 27, a first vacuum chamber 26 and a second vacuum chamber 25 which are arranged on the double-vacuum chamber transport vehicle 27, as shown in figure 2.
The single-station RH vacuum refining furnace shown in fig. 2 includes a buggy ladle 21, a ladle 22 on the buggy ladle 21, a steel platform 23 and a vacuum system 24, only the main components of the RH vacuum refining furnace are shown in the drawing, which are prior art and therefore the detailed structure is not described herein. The RH vacuum refining furnace is provided with a No. 1 standby station, a processing station and a No. 2 standby station, wherein the processing station is positioned between the No. 1 standby station and the No. 2 standby station. The positions of the first vacuum chamber 26 and the second vacuum chamber 25 on the double vacuum chamber transporting carriage 27 are determined by the positions of the # 1 standby station, the processing station and the # 2 standby station of the single-station RH vacuum refining furnace, the second vacuum chamber 25 is located at the # 2 standby station when the first vacuum chamber 26 is located at the processing station, and the first vacuum chamber 26 is located at the # 1 standby station when the second vacuum chamber 25 is located at the processing station.
Therefore, the RH vacuum chamber replacing device can operate one of the first vacuum chamber 26 and the second vacuum chamber 25 from the processing station to the No. 1 standby station or the No. 2 standby station and simultaneously operate the other of the first vacuum chamber 26 and the second vacuum chamber 25 from the No. 2 standby station or the No. 1 standby station to the processing station, thereby reducing the operation time of replacing the vacuum chambers of the RH vacuum refining furnace and further reducing the non-production time of the RH vacuum refining furnace.
In this embodiment, the double vacuum chamber transport cart 27 has a drag chain, and various energy mediums can be delivered to the cart by the drag chain, so as to facilitate the transportation of various energy mediums to the double vacuum chamber transport cart 27.
In this embodiment, the double vacuum chamber transport cart 27 has one set of drives or two sets of drives, and the two sets of drives can function as one drive and one backup drive.
In this embodiment, the double-vacuum chamber transport cart 27 has a larger space than the existing two independent vacuum chamber transport carts, and these spaces can be used for installing various required gas valve stations, cooling water valve stations, connecting pipelines and maintenance platforms, so that the replacement of the vacuum chambers can be more convenient, and further the non-production time of the RH vacuum refining furnace is reduced.
In this embodiment, the double-vacuum-chamber transport cart 27 has three sets of wheels, which are respectively disposed at two ends of the transport cart and in the middle of the double vacuum chambers, and can serve the purpose of uniformly bearing the load of the double vacuum chambers.
Aiming at the defects of the existing single-station RH vacuum refining furnace, the invention also provides a method for shortening the replacement time of the single-station RH vacuum chamber, which is characterized in that a first vacuum chamber and a second vacuum chamber are simultaneously arranged on the same vacuum chamber transport vehicle, the two vacuum chambers are respectively defined as a first vacuum chamber and a second vacuum chamber, the positions of the first vacuum chamber and the second vacuum chamber on the vacuum chamber transport vehicle are determined by the positions of a 1# standby station, a processing station and a 2# standby station of the single-station RH vacuum refining furnace, when the first vacuum chamber is positioned at the processing station, the second vacuum chamber is positioned at the 2# standby station, and when the second vacuum chamber is positioned at the processing station, the first vacuum chamber is positioned at the 1# standby station; during replacement, the vacuum chamber to be replaced is transported to the corresponding standby process through the operation of the vacuum chamber transport vehicle, and meanwhile, the standby vacuum chamber is transported to the processing station, so that the aim of reducing the operation time of replacing the vacuum chamber of the RH vacuum refining furnace is fulfilled, and the non-production time of the RH vacuum refining furnace is further reduced.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a method for shortening real empty room replacement time of simplex position RH, on its application simplex position RH vacuum refining furnace, and simplex position RH vacuum refining furnace has 1# standby station, processing station and 2# standby station, its characterized in that: the method comprises the steps that two vacuum chambers, one for use and one for standby, are simultaneously arranged on the same vacuum chamber transport vehicle, the two vacuum chambers are respectively defined as a first vacuum chamber and a second vacuum chamber, the positions of the first vacuum chamber and the second vacuum chamber on the vacuum chamber transport vehicle are determined by the positions of a 1# standby station, a processing station and a 2# standby station of a single-station RH vacuum refining furnace, when the first vacuum chamber is positioned at the processing station, the second vacuum chamber is positioned at the 2# standby station, and when the second vacuum chamber is positioned at the processing station, the first vacuum chamber is positioned at the 1# standby station; and during replacement, the vacuum chamber to be replaced is conveyed to the corresponding standby process through the operation of the vacuum chamber transport vehicle, and meanwhile, the standby vacuum chamber is conveyed to the processing station.
2. The utility model provides a real empty room of RH changes device, on its application simplex position RH vacuum refining furnace, and simplex position RH vacuum refining furnace has 1# standby station, processing station and 2# standby station, its characterized in that: the double-vacuum-chamber conveying vehicle comprises a double-vacuum-chamber conveying vehicle, a first vacuum chamber and a second vacuum chamber, wherein the first vacuum chamber and the second vacuum chamber are arranged on the double-vacuum-chamber conveying vehicle, the positions of the first vacuum chamber 2 and the second vacuum chamber on the double-vacuum-chamber conveying vehicle are determined by the positions of a 1# standby station, a processing station and a 2# standby station of a single-station RH vacuum refining furnace, when the first vacuum chamber is positioned at the processing station, the second vacuum chamber is positioned at the 2# standby station, and when the second vacuum chamber is positioned at the processing station, the first vacuum chamber is positioned at the 1# standby station.
3. The RH vacuum chamber exchanging apparatus according to claim 2, wherein: the double-vacuum-chamber transport vehicle is provided with a gas valve station, a cooling water valve station, a connecting pipeline and an overhauling platform.
4. The RH vacuum chamber exchanging apparatus according to claim 2, wherein: the double-vacuum-chamber transport vehicle is provided with a drag chain, and various energy media can be conveyed to the double-vacuum-chamber transport vehicle through the drag chain.
5. The RH vacuum chamber exchanging apparatus according to claim 2, wherein: the double-vacuum-chamber transport vehicle has one set of drives or two sets of drives.
6. The RH vacuum chamber exchanging apparatus according to claim 2, wherein: the double-vacuum-chamber transport vehicle is provided with three groups of wheels which are respectively arranged at two ends of the double-vacuum-chamber transport vehicle and in the middle of the double vacuum chambers.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110613743.6A CN113373280A (en) | 2021-06-02 | 2021-06-02 | Method for shortening single-station RH vacuum chamber replacement time and RH vacuum chamber replacement device |
| PCT/CN2021/124914 WO2022252472A1 (en) | 2021-06-02 | 2021-10-20 | Method for shortening replacement time of rh vacuum chamber and rh vacuum chamber replacement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110613743.6A CN113373280A (en) | 2021-06-02 | 2021-06-02 | Method for shortening single-station RH vacuum chamber replacement time and RH vacuum chamber replacement device |
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| CN113373280A true CN113373280A (en) | 2021-09-10 |
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| CN202110613743.6A Pending CN113373280A (en) | 2021-06-02 | 2021-06-02 | Method for shortening single-station RH vacuum chamber replacement time and RH vacuum chamber replacement device |
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| CN (1) | CN113373280A (en) |
| WO (1) | WO2022252472A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022252472A1 (en) * | 2021-06-02 | 2022-12-08 | 中冶南方工程技术有限公司 | Method for shortening replacement time of rh vacuum chamber and rh vacuum chamber replacement apparatus |
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| JP2006104521A (en) * | 2004-10-05 | 2006-04-20 | Sumitomo Metal Ind Ltd | Molten steel decarburizing method in rh vacuum degassing device |
| CN101451178A (en) * | 2008-12-31 | 2009-06-10 | 河北省首钢迁安钢铁有限责任公司 | Quick-speed replacement method of vacuum chamber for single station RH fining furnace |
| CN107127331A (en) * | 2016-02-29 | 2017-09-05 | 宝钢工程技术集团有限公司 | Ladle trolley alternating device and its application method |
| CN110257592A (en) * | 2019-05-31 | 2019-09-20 | 北京首钢国际工程技术有限公司 | A kind of single station RH method for arranging technological process of two ladle car rail junctions |
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| JP4036167B2 (en) * | 2003-09-05 | 2008-01-23 | 住友金属工業株式会社 | Molten steel heating method and molten steel heating device |
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2021
- 2021-06-02 CN CN202110613743.6A patent/CN113373280A/en active Pending
- 2021-10-20 WO PCT/CN2021/124914 patent/WO2022252472A1/en active Application Filing
Patent Citations (4)
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| JP2006104521A (en) * | 2004-10-05 | 2006-04-20 | Sumitomo Metal Ind Ltd | Molten steel decarburizing method in rh vacuum degassing device |
| CN101451178A (en) * | 2008-12-31 | 2009-06-10 | 河北省首钢迁安钢铁有限责任公司 | Quick-speed replacement method of vacuum chamber for single station RH fining furnace |
| CN107127331A (en) * | 2016-02-29 | 2017-09-05 | 宝钢工程技术集团有限公司 | Ladle trolley alternating device and its application method |
| CN110257592A (en) * | 2019-05-31 | 2019-09-20 | 北京首钢国际工程技术有限公司 | A kind of single station RH method for arranging technological process of two ladle car rail junctions |
Non-Patent Citations (1)
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| 朱海亮: "低双工位RH拆分成两套单工位RH的改造", 《金属世界》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022252472A1 (en) * | 2021-06-02 | 2022-12-08 | 中冶南方工程技术有限公司 | Method for shortening replacement time of rh vacuum chamber and rh vacuum chamber replacement apparatus |
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| WO2022252472A1 (en) | 2022-12-08 |
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