CN216786185U - A quick conversion equipment of nitrogen argon for refining furnace ladle bottom blowing - Google Patents
A quick conversion equipment of nitrogen argon for refining furnace ladle bottom blowing Download PDFInfo
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- CN216786185U CN216786185U CN202220172456.6U CN202220172456U CN216786185U CN 216786185 U CN216786185 U CN 216786185U CN 202220172456 U CN202220172456 U CN 202220172456U CN 216786185 U CN216786185 U CN 216786185U
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Abstract
The utility model discloses a nitrogen-argon fast conversion device for ladle bottom blowing of a refining furnace, which comprises a computer control system, an air inlet pipe, two manual valves and two bypass valves, wherein a pressure reducing valve and a total shut-off valve are sequentially arranged on the air inlet pipe in series, an outlet pipe of the total shut-off valve is connected with two air inlet branch pipes, the two manual valves are respectively arranged on the two air inlet branch pipes, a pneumatic shut-off valve is respectively arranged on the two air inlet branch pipes behind the two manual valves, a bypass pipeline is respectively arranged on the two pneumatic shut-off valves in parallel, the two bypass valves are respectively arranged on the bypass pipeline, and the total shut-off valve and the two pneumatic shut-off valves are respectively connected with the computer control system. According to the utility model, the nitrogen pipeline is added on the argon pipeline, and two sets of gas pipelines are freely switched on a computer according to different steel types, so that the structure is simple, and the action is rapid. The cost of bottom blowing gas per ton of steel can be saved, and the alloy usage amount can be reduced.
Description
Technical Field
The utility model belongs to the technical field of ladle bottom blowing of LF (ladle furnace) refining furnaces, and particularly relates to a nitrogen-argon rapid conversion device for ladle bottom blowing of a refining furnace.
Background
An LF ladle refining furnace is a main external refining device in steel production. Its main tasks are: desulfurization, temperature regulation, accurate component fine adjustment and improvement of molten steel purity. The ladle bottom blowing of the refining furnace is taken as a key technology of LF refining, high-purity inert gas is introduced in smelting to be taken as stirring gas, gas stirring is beneficial to chemical reaction between steel and slag, the material transfer between the steel and the slag can be accelerated, and the deoxidation and desulfurization reaction of molten steel are facilitated. The ladle bottom blowing gas of the LF furnace is single, the cost is high, manual operation is needed for conversion between gases, and the working efficiency is low. Therefore, the use of a nitrogen argon device capable of fast switching in the ladle bottom blowing of the refining furnace becomes a problem to be solved urgently.
And (3) document retrieval: ding Jian, the application and practice of ladle bottom argon blowing device in refining furnace of steel plant in the book of Chinese Equipment engineering, 2021-01-01, No. 014; the utility model provides a converter ladle bottom blowing nitrogen gas pipeline quick connecting device, the publication number: CN214368440U, 2021-02-06; according to the search of the literature, the technology of the quick switching nitrogen argon device in the ladle bottom blowing of the refining furnace does not exist in China at present.
Disclosure of Invention
The utility model aims to provide a nitrogen-argon fast conversion device for ladle bottom blowing of a refining furnace, which can increase the types of bottom blowing gas, realize fast switching between gases, reduce the labor intensity and improve the working efficiency aiming at the LF refining furnace of steel enterprises and the ladle bottom blowing application of other types of refining furnaces.
In order to realize the purpose, the technical scheme provided by the utility model is as follows: the utility model provides a nitrogen argon fast conversion equipment for blowing at bottom of refining furnace ladle, includes computer control system, intake pipe and two manual valves and two bypass valves, the intake pipe on set up relief pressure valve and total trip valve in proper order in series, connecting two intake manifold on the outlet pipe of total trip valve, two manual valves are installed respectively on two intake manifold, set up a pneumatic trip valve respectively on two intake manifold at the back of two manual valves, set up a bypass pipeline on two pneumatic trip valves respectively in parallel, install respectively on the bypass pipeline two bypass valves, total trip valve and two pneumatic trip valves be connected with computer control system respectively.
When the automatic switching device is used, the structures of the automatic switching device are respectively arranged on the nitrogen pipeline and the argon pipeline, so that two sets of gas pipelines can be freely switched on a computer according to different steel types, and the automatic switching device is simple in structure and quick in action. The cost of bottom blowing gas per ton of steel can be saved, and the alloy usage amount can be reduced.
Drawings
Fig. 1 is a schematic view of the connection structure of the present invention.
Detailed Description
A nitrogen argon fast conversion device for ladle bottom blowing of a refining furnace is shown in figure 1 and comprises a computer control system, an air inlet pipe, two manual valves and two bypass valves, wherein the computer control system is the prior art, and the specific working principle and the specific working process are not repeated. The intake pipe on establish ties in proper order and being provided with relief pressure valve 1 and total trip valve 2, be connected two inlet branch pipes on the outlet pipe of total trip valve 2, two manual valves 3, 4 are installed respectively on two inlet branch pipes, set up a pneumatic trip valve 5, 6 respectively on two the later two inlet branch pipes of two manual valves, connect in parallel respectively on two pneumatic trip valves 5, 6 and set up a bypass line, install respectively on the bypass line two bypass valves 7, 8, total trip valve 2 and two pneumatic trip valves 5, 6 be connected with computer control system respectively.
The utility model can realize the fast switching of nitrogen or argon by a computer control system, freely switches two sets of gas pipelines on a computer according to different steel types, and has simple structure and fast action.
Claims (1)
1. The utility model provides a quick conversion equipment of nitrogen argon for refining furnace ladle bottom blowing, includes computer control system, intake pipe and two manual valves and two bypass valves, characterized by: the intake pipe on establish ties in proper order and being set up relief pressure valve and total trip valve, two inlet branch are being connected on the outlet pipe of total trip valve, two manual valves are installed respectively on two inlet branch, set up a pneumatic trip valve respectively on two inlet branch behind two manual valves, connect in parallel respectively on two pneumatic trip valves and set up a bypass pipeline, install respectively on the bypass pipeline two bypass valves, total trip valve and two pneumatic trip valves be connected with computer control system respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220172456.6U CN216786185U (en) | 2022-01-22 | 2022-01-22 | A quick conversion equipment of nitrogen argon for refining furnace ladle bottom blowing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220172456.6U CN216786185U (en) | 2022-01-22 | 2022-01-22 | A quick conversion equipment of nitrogen argon for refining furnace ladle bottom blowing |
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| CN216786185U true CN216786185U (en) | 2022-06-21 |
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| CN202220172456.6U Active CN216786185U (en) | 2022-01-22 | 2022-01-22 | A quick conversion equipment of nitrogen argon for refining furnace ladle bottom blowing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115125364A (en) * | 2022-07-14 | 2022-09-30 | 新疆伊犁钢铁有限责任公司 | Production method for reducing alloy cost in steelmaking process |
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2022
- 2022-01-22 CN CN202220172456.6U patent/CN216786185U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115125364A (en) * | 2022-07-14 | 2022-09-30 | 新疆伊犁钢铁有限责任公司 | Production method for reducing alloy cost in steelmaking process |
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