CN205576205U - Vacuum tank structure for RH - Google Patents
Vacuum tank structure for RH Download PDFInfo
- Publication number
- CN205576205U CN205576205U CN201620343687.3U CN201620343687U CN205576205U CN 205576205 U CN205576205 U CN 205576205U CN 201620343687 U CN201620343687 U CN 201620343687U CN 205576205 U CN205576205 U CN 205576205U
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- CN
- China
- Prior art keywords
- vacuum tank
- tank body
- splashproof cover
- hole
- lower funnel
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- Withdrawn - After Issue
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model provides a vacuum tank structure for RH, including the vacuum tank body, the inner chamber fixed mounting of vacuum tank body has conical splashproof lid, and the through -hole has been seted up on the top of splashproof lid, and the inner chamber of vacuum tank body still is fixed with the unloading funnel, and the through -hole has been seted up to the bottom of unloading funnel, is connected with the alloy chute on the outer wall of vacuum tank body, and the alloy chute is located the top of unloading funnel to inner chamber intercommunication with the vacuum tank body. The utility model provides a vacuum tank structure for RH, prevent through addding the splashproof lid that the molten steel from splashing, help avoiding the molten steel to splash, cause follow -up air extraction equipment's damage, and the further height of vacuum -reduced groove body by a wide margin, through addding the unloading funnel, to the impact of vacuum cell wall when helping reduce adding the alloy slag charge, further improve the life of vacuum tank body, help reducing RH vacuum tank and corollary equipment's height, and reduces the manufacture cost, further reduce the whole equipment elevation in RH refining plant, the investment cost is reduced.
Description
Technical field
This utility model belongs to RH furnace outer refining technology field, is specifically related to a kind of RH vacuum tank structure.
Background technology
At present, RH refining furnace is the Main Means of molten steel vacuum refining, and at home and abroad iron and steel enterprise obtains and is widely used.But in actual design and application process, RH refining plant crane rail level absolute altitude is too high, causes its construction cost too high, difficulty of construction is big, the oldest plant area transformation project.So one of problem that the RH refining plant design seeking low rail level absolute altitude is external refining designer to be paid close attention to always.
The splash height of molten steel during RH vacuum refining, depends on the deoxidation situation of molten steel, the most about 6 ~ 10m under vacuum.In order to avoid the splashing of molten steel during refine, cause the damage of follow-up air-extractor, be typically designed vacuum tank height and take about 8m.Vacuum tank as the key device of RH refining furnace, himself height, decision auxiliary facility absolute altitude entirety is increased, is the too high one of the main reasons of RH refining plant rail level absolute altitude.
Can effectively control molten steel splash as long as visible, reduce vacuum tank height, it becomes possible to substantially reduce the oneself height of RH stove.
Utility model content
The purpose of this utility model is to cause RH refining plant rail level absolute altitude too high for vacuum tank excessive height, causes that construction cost is high, difficulty of construction is big problem.
For this, this utility model provides a kind of RH vacuum tank structure, including vacuum tank body, the top of vacuum tank body connects hot-bending pipe, and hot-bending pipe offers top gun passage, and the bottom of vacuum tank body is dip pipe, the inner chamber of vacuum tank body is installed with the Splashproof cover of taper, the bottom of Splashproof cover is circumferentially welded on the inwall of vacuum tank body, and center, top offers through hole, and the central axis of this through hole overlaps with the center line axis of top gun passage；
The inner chamber of described vacuum tank body is further fixed on lower funnel, lower funnel is positioned at the top of Splashproof cover, the top of lower funnel is circumferentially welded on the inwall of vacuum tank body, bottom center offers through hole, this through hole is coaxial with the through hole on Splashproof cover top and diameter is identical, and the lower bottom of funnel is welded to connect with the top of Splashproof cover；
Connect on the outer wall of vacuum tank body and have alloy chute, alloy chute to be positioned at the top of lower funnel, and with the inner space of vacuum tank body；
The height of the bottom distance vacuum tank body base plate of described Splashproof cover is reserved head room, and reserved head room is 1～3m.
The lower surface of described Splashproof cover and the angle of vertical direction are 30 °～45 °.
The lower surface of described lower funnel and the angle of horizontal direction are 30 °～45 °.
The lower surface of described Splashproof cover is curved surface.
The lower surface of described Splashproof cover is hemispherical.
Described Splashproof cover uses refractory material to make.
Described lower funnel uses wear-resisting steel plate to make.
The beneficial effects of the utility model: this RH vacuum tank structure that this utility model provides, prevent molten steel from splashing by setting up Splashproof cover, help avoid molten steel to splash, cause the damage of follow-up air-extractor, and the height of vacuum tank body is greatly reduced further, by setting up lower funnel, contribute to reducing impact to vacuum cell wall when adding alloy slag charge, improve the service life of vacuum tank body further, this utility model contributes to reducing RH vacuum tank and the height of corollary equipment thereof, reduce manufacturing cost, reduce RH refining plant integral device absolute altitude further, reduce cost of investment, bring many convenience to manufacture and application.
Below with reference to accompanying drawing, this utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is the structural representation of RH vacuum tank structure.
Description of reference numerals: 1, dip pipe；2, vacuum tank body；3, hot-bending pipe；4, top gun passage；5, alloy chute；6, Splashproof cover；7, lower funnel.
Detailed description of the invention
Embodiment 1:
Cause RH refining plant rail level absolute altitude too high to solve vacuum tank excessive height, cause construction cost high, difficulty of construction big problem, present embodiments provide a kind of RH vacuum tank structure as shown in Figure 1, including vacuum tank body 2, the top of vacuum tank body 2 connects hot-bending pipe 3, top gun passage 4 is offered on hot-bending pipe 3, the bottom of vacuum tank body 2 is dip pipe 1, the inner chamber of vacuum tank body 2 is installed with the Splashproof cover 6 of taper, the bottom of Splashproof cover 6 is circumferentially welded on the inwall of vacuum tank body 2, center, top offers through hole, the central axis of this through hole overlaps with the center line axis of top gun passage 4；
The inner chamber of described vacuum tank body 2 is further fixed on lower funnel 7, lower funnel 7 is positioned at the top of Splashproof cover 6, the top of lower funnel 7 is circumferentially welded on the inwall of vacuum tank body 2, center is offered in bottom through hole, this through hole is coaxial with the through hole of Splashproof cover 6 bottom and diameter is identical, and the bottom of lower funnel 7 is welded to connect with the top of Splashproof cover 6；
Connect on the outer wall of vacuum tank body 2 and have alloy chute 5, alloy chute 5 to be positioned at the top of lower funnel 7, and with the inner space of vacuum tank body 2.
The height of bottom distance vacuum tank body 2 base plate of described Splashproof cover 6 is reserved head room, and reserved head room is 1～3m.
The work process of the RH vacuum tank structure that the present embodiment provides is:
Under vacuum, molten steel enters in vacuum tank body 2, the molten steel splashed is blocked by Splashproof cover 6, when adding alloy, alloy slag charge can be entered in vacuum tank body 2 by alloy chute 5, and by the buffering of lower funnel 7, enters molten steel, contribute to reducing the impact to vacuum tank body 2 inwall of the alloy slag charge, extend vacuum tank body 2 service life；When needing to carry out oxygen blast refine or slagging operation, top gun first passes through top gun passage 4, then by lower funnel 7 and the central through hole of Splashproof cover 6, molten steel is carried out oxygen blast refine or slagging operation.
When actual design, in vacuum tank body 2, vacuum is as 67Pa, the maximum height of molten steel about 500m is foundation, when using Splashproof cover 6 to stop molten steel to splash, drawing through test of many times, reserved head room is when 1～3m, for optimum height, and reduce RH refining plant integral device absolute altitude, reduce cost of investment.
This RH vacuum tank structure that this utility model provides, prevent molten steel from splashing by setting up Splashproof cover, help avoid molten steel to splash, cause the damage of follow-up air-extractor, and the height of vacuum tank body is greatly reduced further, by setting up lower funnel, contribute to reducing impact to vacuum cell wall when adding alloy slag charge, improve the service life of vacuum tank body further, this utility model contributes to reducing RH vacuum tank and the height of corollary equipment thereof, reduce manufacturing cost, reduce RH refining plant integral device absolute altitude further, reduce cost of investment, bring many convenience to manufacture and application.
Embodiment 2:
Present embodiments provide a kind of RH vacuum tank structure as shown in Figure 1, including vacuum tank body 2, the top of vacuum tank body 2 connects hot-bending pipe 3, top gun passage 4 is offered on hot-bending pipe 3, the bottom of vacuum tank body 2 is dip pipe 1, and the inner chamber of vacuum tank body 2 is installed with the Splashproof cover 6 of taper, and the bottom of Splashproof cover 6 is circumferentially welded on the inwall of vacuum tank body 2, top offers through hole, and the central axis of this through hole overlaps with the center line axis of top gun passage 4；
The inner chamber of described vacuum tank body 2 is further fixed on lower funnel 7, the top of lower funnel 7 is circumferentially welded on the inwall of vacuum tank body 2, bottom offers through hole, and this through hole is identical with the through hole shaft diameter of Splashproof cover 6 bottom, and the bottom of lower funnel 7 is welded to connect with the bottom of Splashproof cover 6；
Connect on the outer wall of vacuum tank body 2 and have alloy chute 5, alloy chute 5 to be positioned at the top of lower funnel 7, and with the inner space of vacuum tank body 2.
The lower surface of described Splashproof cover 6 and the angle of vertical direction are 30 °～45 °.
When actual design, in vacuum tank body 2, vacuum is as 67Pa, and the maximum height of molten steel about 500m is foundation, when using Splashproof cover 6 to stop molten steel to splash, Splashproof cover tapering is unsuitable excessive, draws through test of many times, preferably 45 °, RH refining plant integral device absolute altitude can be reduced.
Embodiment 3:
Present embodiments provide a kind of RH vacuum tank structure as shown in Figure 1, including vacuum tank body 2, the top of vacuum tank body 2 connects hot-bending pipe 3, top gun passage 4 is offered on hot-bending pipe 3, the bottom of vacuum tank body 2 is dip pipe 1, and the inner chamber of vacuum tank body 2 is installed with the Splashproof cover 6 of taper, and the bottom of Splashproof cover 6 is circumferentially welded on the inwall of vacuum tank body 2, top offers through hole, and the central axis of this through hole overlaps with the center line axis of top gun passage 4；
The inner chamber of described vacuum tank body 2 is further fixed on lower funnel 7, the top of lower funnel 7 is circumferentially welded on the inwall of vacuum tank body 2, bottom offers through hole, and this through hole is identical with the through hole shaft diameter of Splashproof cover 6 bottom, and the bottom of lower funnel 7 is welded to connect with the bottom of Splashproof cover 6；
Connect on the outer wall of vacuum tank body 2 and have alloy chute 5, alloy chute 5 to be positioned at the top of lower funnel 7, and with the inner space of vacuum tank body 2.
The lower surface of described lower funnel 7 and the angle of horizontal direction are 30 °～45 °.
When actual design, in vacuum tank body 2, vacuum is as 67Pa, and the maximum height of molten steel about 500m is foundation, installs charging hopper in vacuum tank, and its tapering about 45 ° is advisable, and such vacuum tank whole height at least reduces about 25%.
Embodiment 4:
Present embodiments provide a kind of RH vacuum tank structure as shown in Figure 1, including vacuum tank body 2, the top of vacuum tank body 2 connects hot-bending pipe 3, top gun passage 4 is offered on hot-bending pipe 3, the bottom of vacuum tank body 2 is dip pipe 1, and the inner chamber of vacuum tank body 2 is installed with the Splashproof cover 6 of taper, and the bottom of Splashproof cover 6 is circumferentially welded on the inwall of vacuum tank body 2, top offers through hole, and the central axis of this through hole overlaps with the center line axis of top gun passage 4；
The inner chamber of described vacuum tank body 2 is further fixed on lower funnel 7, the top of lower funnel 7 is circumferentially welded on the inwall of vacuum tank body 2, bottom offers through hole, and this through hole is identical with the through hole shaft diameter of Splashproof cover 6 bottom, and the bottom of lower funnel 7 is welded to connect with the bottom of Splashproof cover 6；
Connect on the outer wall of vacuum tank body 2 and have alloy chute 5, alloy chute 5 to be positioned at the top of lower funnel 7, and with the inner space of vacuum tank body 2.
The lower surface of described Splashproof cover 6 is curved surface.
The effect of Splashproof cover 6 is the splashing preventing from avoiding molten steel, and causing the damage of follow-up air-extractor, the lower surface of Splashproof cover 6 is the design of curved surface, molten steel can be made when contacting with lower surface, landing rapidly, it should be noted that the lower surface of Splashproof cover 6 can also be smooth structure.
Embodiment 5:
On the basis of embodiment 5, the lower surface of described Splashproof cover 6 is hemispherical, can make molten steel when contacting with lower surface, rapid landing, also reduce molten steel splashing height.
Embodiment 6:
Present embodiments provide a kind of RH vacuum tank structure as shown in Figure 1, including vacuum tank body 2, the top of vacuum tank body 2 connects hot-bending pipe 3, top gun passage 4 is offered on hot-bending pipe 3, the bottom of vacuum tank body 2 is dip pipe 1, and the inner chamber of vacuum tank body 2 is installed with the Splashproof cover 6 of taper, and the bottom of Splashproof cover 6 is circumferentially welded on the inwall of vacuum tank body 2, top offers through hole, and the central axis of this through hole overlaps with the center line axis of top gun passage 4；
The inner chamber of described vacuum tank body 2 is further fixed on lower funnel 7, the top of lower funnel 7 is circumferentially welded on the inwall of vacuum tank body 2, bottom offers through hole, and this through hole is identical with the through hole shaft diameter of Splashproof cover 6 bottom, and the bottom of lower funnel 7 is welded to connect with the bottom of Splashproof cover 6；
Connect on the outer wall of vacuum tank body 2 and have alloy chute 5, alloy chute 5 to be positioned at the top of lower funnel 7, and with the inner space of vacuum tank body 2.
Described Splashproof cover 6 uses refractory material to make, and Splashproof cover 6 can also be water-cooling structure, contributes to preventing molten steel from splashing.Due to the extreme temperatures of molten steel, general material cannot bear high temperature, and Splashproof cover 6 selects refractory material can extend its service life.
Embodiment 7:
Present embodiments provide a kind of RH vacuum tank structure as shown in Figure 1, including vacuum tank body 2, the top of vacuum tank body 2 connects hot-bending pipe 3, top gun passage 4 is offered on hot-bending pipe 3, the bottom of vacuum tank body 2 is dip pipe 1, and the inner chamber of vacuum tank body 2 is installed with the Splashproof cover 6 of taper, and the bottom of Splashproof cover 6 is circumferentially welded on the inwall of vacuum tank body 2, top offers through hole, and the central axis of this through hole overlaps with the center line axis of top gun passage 4；
The inner chamber of described vacuum tank body 2 is further fixed on lower funnel 7, the top of lower funnel 7 is circumferentially welded on the inwall of vacuum tank body 2, bottom offers through hole, and this through hole is identical with the through hole shaft diameter of Splashproof cover 6 bottom, and the bottom of lower funnel 7 is welded to connect with the bottom of Splashproof cover 6；
Connect on the outer wall of vacuum tank body 2 and have alloy chute 5, alloy chute 5 to be positioned at the top of lower funnel 7, and with the inner space of vacuum tank body 2.
Described lower funnel 7 uses wear-resisting steel plate to make.Owing to alloy slag charge need to be descending along lower funnel 7, alloy slag charge has the biggest friction with the upper surface of lower funnel 7, therefore needs to select high-abrasive material to use with normal with the life-span ensureing lower funnel 7, in the present embodiment, and preferably wear-resisting steel plate.
This RH vacuum tank structure that this utility model provides, prevent molten steel from splashing by setting up Splashproof cover, help avoid molten steel to splash, cause the damage of follow-up air-extractor, and the height of vacuum tank body is greatly reduced further, by setting up lower funnel, contribute to reducing impact to vacuum cell wall when adding alloy slag charge, improve the service life of vacuum tank body further, this utility model contributes to reducing RH vacuum tank and the height of corollary equipment thereof, reduce manufacturing cost, reduce RH refining plant integral device absolute altitude further, reduce cost of investment, bring many convenience to manufacture and application.
Exemplified as above is only to illustration of the present utility model, is not intended that the restriction to protection domain of the present utility model, within the every and same or analogous design of this utility model belongs to protection domain of the present utility model.Parts that the present embodiment describes the most in detail and structure belong to the well-known components of the industry and common structure or conventional means, describe the most one by one.
Claims (7)
1.RH vacuum tank structure, including vacuum tank body (2), the top of vacuum tank body (2) connects hot-bending pipe (3), top gun passage (4) is offered on hot-bending pipe (3), the bottom of vacuum tank body (2) is dip pipe (1), it is characterized in that: the inner chamber of vacuum tank body (2) is installed with the Splashproof cover (6) of taper, the bottom of Splashproof cover (6) is circumferentially welded on the inwall of vacuum tank body (2), center, top offers through hole, and the central axis of this through hole overlaps with the center line axis of top gun passage (4)；
The inner chamber of described vacuum tank body (2) is further fixed on lower funnel (7), lower funnel (7) is positioned at the top of Splashproof cover (6), the top of lower funnel (7) is circumferentially welded on the inwall of vacuum tank body (2), bottom center offers through hole, this through hole is coaxial with the through hole on Splashproof cover (6) top and diameter is identical, and the bottom of lower funnel (7) is welded to connect with the top of Splashproof cover (6)；
Connecting on the outer wall of vacuum tank body (2) has alloy chute (5), alloy chute (5) to be positioned at the top of lower funnel (7), and with the inner space of vacuum tank body (2)；
The height of bottom distance vacuum tank body (2) base plate of described Splashproof cover (6) is reserved head room, and reserved head room is 1～3m.
2. RH vacuum tank structure as claimed in claim 1, it is characterised in that: the lower surface of described Splashproof cover (6) and the angle of vertical direction are 30 °～45 °.
3. RH vacuum tank structure as claimed in claim 1, it is characterised in that: the described lower surface of lower funnel (7) and the angle of horizontal direction are 30 °～45 °.
4. RH vacuum tank structure as claimed in claim 1, it is characterised in that: the lower surface of described Splashproof cover (6) is curved surface.
5. RH vacuum tank structure as claimed in claim 4, it is characterised in that: the lower surface of described Splashproof cover (6) is hemispherical.
6. RH vacuum tank structure as claimed in claim 1, it is characterised in that: described Splashproof cover (6) uses refractory material to make.
7. RH vacuum tank structure as claimed in claim 1, it is characterised in that: described lower funnel (7) uses wear-resisting steel plate to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620343687.3U CN205576205U (en) | 2016-04-22 | 2016-04-22 | Vacuum tank structure for RH |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620343687.3U CN205576205U (en) | 2016-04-22 | 2016-04-22 | Vacuum tank structure for RH |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205576205U true CN205576205U (en) | 2016-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620343687.3U Withdrawn - After Issue CN205576205U (en) | 2016-04-22 | 2016-04-22 | Vacuum tank structure for RH |
Country Status (1)
| Country | Link |
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| CN (1) | CN205576205U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105755211A (en) * | 2016-04-22 | 2016-07-13 | 中国重型机械研究院股份公司 | Vacuum tank device for RH refining |
-
2016
- 2016-04-22 CN CN201620343687.3U patent/CN205576205U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105755211A (en) * | 2016-04-22 | 2016-07-13 | 中国重型机械研究院股份公司 | Vacuum tank device for RH refining |
| CN105755211B (en) * | 2016-04-22 | 2017-12-26 | 中国重型机械研究院股份公司 | A kind of RH vacuum slot devices |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160914 Effective date of abandoning: 20171226 |