CN205289695U - Gaseous control system of continuous casting protection pouring - Google Patents
Gaseous control system of continuous casting protection pouring Download PDFInfo
- Publication number
- CN205289695U CN205289695U CN201521056364.8U CN201521056364U CN205289695U CN 205289695 U CN205289695 U CN 205289695U CN 201521056364 U CN201521056364 U CN 201521056364U CN 205289695 U CN205289695 U CN 205289695U
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- China
- Prior art keywords
- gas
- long nozzle
- continuous casting
- control cabinet
- river
- Prior art date
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- Expired - Fee Related
Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 238000004513 sizing Methods 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 21
- 239000010959 steel Substances 0.000 abstract description 21
- 238000003756 stirring Methods 0.000 abstract description 2
- 206010028980 Neoplasm Diseases 0.000 abstract 1
- 239000013049 sediment Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 92
- 238000000034 method Methods 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- 239000010813 municipal solid waste Substances 0.000 description 4
- 230000006837 decompression Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- -1 argon to protect Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 150000002835 noble gases Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Abstract
The utility model discloses a gaseous control system of continuous casting protection pouring, including middle gas control cabinet, long mouth of a river gas control cabinet, field operation case, switch board and master control operating means, the long mouth of a river in the continuous casting system is connected to the long mouth of a river gas outlet of long mouth of a river gas control cabinet, and stopper in the continuous casting system excellent, the upward mouth of a river and plate are connected respectively to the three end of giving vent to anger of middle gas control cabinet, set up the PLC controller in long mouth of a river gas control cabinet or the middle gas control cabinet. The utility model discloses an automated control carries out gaseous stable trace stirring at the excellent centre bore of stopper, effectively avoids mouth of a river dross on -the -spot, inclusion come -up in the package molten steel in the middle of makeeing simultaneously, through automated control, stablize at the last mouth of a river and blow to have interim large -traffic high pressure control function, effectively avoid nozzle clogging, go up mouth of a river knot tumor body adhesion, finally effectively reduce the interior young man's inclusion of steel billet, prevent to cover the sediment and get into the steel billet.
Description
Technical field
This utility model relates to a kind of control system, the specifically control system of a kind of continuous casting protection pouring gas.
Background technology
In existing steel plant continuous casting molding casting process, invar row flow velocity under water is quickly, produces negative pressure, sucked by small part air in casting process, causes that molten steel increases at tundish and crystallizer nitrogen content and oxygen content, and ultimately resulting in steel billet field trash increases. Composition and the cleanliness factor of molten steel can not be processed by any mode at this process section. In order to solve this technological problems, steel mill adopts manual ball valve or air relief valve valve to adjust gas flow mostly. In continuous casting steel casting process, the control of gas flow is very small, it is generally required to control flow at about 10NL/min, trueness error�ܡ� 1NL/min, after the control of gas flow is adjusted, vibrating state it is constantly in process of production because of continuous casting platform, reality uses manually-operated gate cannot realize accurate, stable long-time constant flow supply, ultimately result in foreign substance in molten steel and increase in continuous casting process link.
Utility model content
The purpose of this utility model is in that to provide the control system of a kind of continuous casting protection pouring gas, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, this utility model provides following technical scheme:
A kind of control system of continuous casting protection pouring gas, including intermediate gas switch board, long nozzle gas control cabinet, field operation box, power distribution cabinet and master operation device, the long nozzle gas outlet of described long nozzle gas control cabinet connects the long nozzle in continuous casting system, and three outlet sides of intermediate gas switch board connect the stopper in continuous casting system, filling pipe end and plate respectively, described long nozzle gas control cabinet or intermediate gas switch board arrange PLC, and the control end of PLC connects field operation box and master operation device respectively, PLC is powered by power distribution cabinet, each branch road of described intermediate gas switch board and long nozzle gas control cabinet is respectively provided with manual ball valve, pneumatic filter, gas pressure reducer, bypass valve, sizing orifice plate gas control system, gas flow sensor and gas pressure sensor, wherein pneumatic filter, gas pressure reducer, bypass valve, sizing orifice plate gas control system, gas flow sensor and gas pressure sensor are all connected with PLC.
As further program of the utility model: described field operation box is arranged on job shop, and master operation device is arranged on control room.
As further program of the utility model: the air inlet of described intermediate gas switch board and long nozzle gas control cabinet is all connected with source of the gas, and arranges gas filtration decompressor and manual ball valve between source of the gas and air inlet.
As further program of the utility model: described long nozzle gas control cabinet is internally provided with flow controlling unit and flow detection unit, and the long nozzle air inlet of long nozzle gas control cabinet is sequentially connected with flow controlling unit, flow detection unit and long nozzle gas outlet.
As this utility model further scheme: described intermediate gas switch board and long nozzle gas control cabinet are internally provided with fine filter, the outfan connection traffic control unit of fine filter, regulation and control pipeline bifurcation in flow controlling unit, the regulation and control pipeline of the first branch road sets gradually gas pressure reducer and sizing orifice plate gas control system, the regulation and control pipeline of the second branch road arranges gas decompressor; Every bypass line of flow detection unit is respectively provided with the gentle pressure sensing body body device of gas flow sensor.
Compared with prior art, the beneficial effects of the utility model are:
(1) this operation becomes finishing operation before base as molten steel, because of the suction that molten steel flow speed causes in steel pouring process, uses the noble gases such as argon to protect, it is to avoid the contact of steel water and air;
(2) by Automated condtrol, carry out the stable minimal amount of agitation of gas at stopper centre bore, be prevented effectively from nozzle clogging scene, promote tundish molten steel inclusion to float simultaneously;
(3) by Automated condtrol, carry out stable air blowing at filling pipe end, and there is interim big-flow high-pressure power control function, be prevented effectively from filling pipe end blocking, filling pipe end dross body adhesion;
(4) in plate (argon envelope) ring, carry out minimum gas supply, be prevented effectively from molten steel and suck air at the lower mouth of a river, in crystallizer, form new oxide and nitride;
(5) raw field trash after in steel billet is effectively reduced.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is control schematic diagram of the present utility model.
Fig. 3 is the structural representation of long nozzle gas control cabinet.
In figure: continuous casting system 1, long nozzle 2, stopper 3, filling pipe end 4, intermediate gas switch board 5, long nozzle gas control cabinet 6, PLC 61, binding post 62, long nozzle air inlet 63, long nozzle gas outlet 64, flow detection unit 65, flow controlling unit 66, manual ball valve 67, field operation box 7, power distribution cabinet 8, master operation device 9, computer 10.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments. Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
Refer to Fig. 1��3, in this utility model embodiment, a kind of control system of continuous casting protection pouring gas, including intermediate gas switch board 5, long nozzle gas control cabinet 6, field operation box 7, power distribution cabinet 8 and master operation device 9, the long nozzle gas outlet 64 of described long nozzle gas control cabinet 6 connects the long nozzle 2 in continuous casting system 1, three outlet sides of intermediate gas switch board 5 connect the stopper 3 in continuous casting system 1, filling pipe end 4 and plate respectively, by constantly blowing out inert gas shielding casting process;Described long nozzle gas control cabinet 6 or intermediate gas switch board 5 arrange PLC 61, gather and control internal data and device by PLC 61, and the control end of PLC 61 connects field operation box 7 and master operation device 9 respectively, wherein field operation box 7 is arranged on job shop, master operation device 9 is arranged on control room, realizing various ways control, PLC 61 is powered by power distribution cabinet 8.
The air inlet of described intermediate gas switch board 5 and long nozzle gas control cabinet 6 is all connected with source of the gas, and arranges the parts such as gas filtration decompressor and manual ball valve 67 between source of the gas and air inlet, in order to gas is filtered decompression, it is ensured that stable output.
Described long nozzle gas control cabinet 6 is internally provided with flow controlling unit 66 and flow detection unit 65, and the long nozzle air inlet 63 of long nozzle gas control cabinet 6 is sequentially connected with flow controlling unit 66, flow detection unit 65 and long nozzle gas outlet 64, by flow controlling unit 66 and flow detection unit 65, inside gas flow by all means is controlled and detects.
Each branch road in described intermediate gas switch board 5 and long nozzle gas control cabinet 6 is respectively provided with the parts such as manual ball valve 67, pneumatic filter, gas pressure reducer, bypass valve, sizing orifice plate gas control system, gas flow sensor, gas pressure sensor, thus realizing the detection of gaseous state on each branch road.
The parts such as described pneumatic filter, gas pressure reducer, bypass valve, sizing orifice plate gas control system, gas flow sensor, gas pressure sensor are all connected with PLC 61, by the pressure size of PLC 61 detected gas output, and the regulation and control gas pressure implemented and gas flow.
The gas of source of the gas is entered by main pipeline, enters intermediate gas switch board 5 and long nozzle gas control cabinet 6 after carrying out coarse filtration process, carries out automatization's switching of gaseous species during this period as desired by pneumatic operated valve;
Gas enters in intermediate gas switch board 5 and long nozzle gas control cabinet 6, the fine filter arranged through inside processes laggard inbound traffics control unit 66, regulation and control pipeline bifurcation in flow controlling unit 66, the regulation and control pipeline of the first branch road sets gradually gas pressure reducer and sizing orifice plate gas control system, thus first reducing pressure, carry out the normal control of flow again, the regulation and control pipeline of the second branch road arranges gas pressure reducer, it is also carried out decompression, this decompression is only used as pressure during bypass, can carry out the adjustment of necessity at any time;
Every bypass line of described flow detection unit 65 is respectively provided with gas flow sensor and gas pressure sensor, gas flow is made to realize Automated condtrol each through PLC, operator's control box at the scene is operated, master operation device 9 also can be operated, and master operation device 9 uses primarily as data storage and monitoring;
In the regulation and control pipeline of the first branch road, gas flow normally controls process, stablize upstream pressure, micro fluctuation according to downstream pressure carries out the trace adjustment of gas flow, enter the factors such as molten steel swell increment and cause how counter-pressure changes realizing no matter liquid steel temperature gradient, alloying component, gas at normal temperature, realize the stable supply of gas flow, reduce the enrichment of micro clip foreign material and form big field trash, it is to avoid the field trash being newly formed enters crystallizer; Crystallizer liquid steel level is in stable stirring all the time, it is prevented that crystallizer covering slag enters steel billet.
This practicality and automated system networking (computer 10) in factory, it is achieved all data can be looked into, and monitors at any time; Good basis is accomplished fluently for realizing normalizing operation technique.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and when without departing substantially from spirit of the present utility model or basic feature, it is possible to realize this utility model in other specific forms. Therefore, no matter from which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than described above, it is intended that all changes in the implication of the equivalency dropping on claim and scope included in this utility model. Any accompanying drawing labelling in claim should be considered as the claim that restriction is involved.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but not each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should be made as a whole by those skilled in the art, and the technical scheme in each embodiment through appropriately combined, can also form other embodiments that it will be appreciated by those skilled in the art that.
Claims (5)
1. the control system of a continuous casting protection pouring gas, including intermediate gas switch board, long nozzle gas control cabinet, field operation box, power distribution cabinet and master operation device, it is characterized in that, the long nozzle gas outlet of described long nozzle gas control cabinet connects the long nozzle in continuous casting system, and three outlet sides of intermediate gas switch board connect the stopper in continuous casting system, filling pipe end and plate respectively, described long nozzle gas control cabinet or intermediate gas switch board arrange PLC, and the control end of PLC connects field operation box and master operation device respectively, PLC is powered by power distribution cabinet, each branch road of described intermediate gas switch board and long nozzle gas control cabinet is respectively provided with manual ball valve, pneumatic filter, gas pressure reducer, bypass valve, sizing orifice plate gas control system, gas flow sensor and gas pressure sensor, wherein pneumatic filter, gas pressure reducer, bypass valve, sizing orifice plate gas control system, gas flow sensor and gas pressure sensor are all connected with PLC.
2. the control system of a kind of continuous casting protection pouring gas according to claim 1, it is characterised in that described field operation box is arranged on job shop, and master operation device is arranged on control room.
3. the control system of a kind of continuous casting protection pouring gas according to claim 1; it is characterized in that; the air inlet of described intermediate gas switch board and long nozzle gas control cabinet is all connected with source of the gas, and arranges gas filtration decompressor and manual ball valve between source of the gas and air inlet.
4. the control system of a kind of continuous casting protection pouring gas according to claim 1; it is characterized in that; described long nozzle gas control cabinet is internally provided with flow controlling unit and flow detection unit, and the long nozzle air inlet of long nozzle gas control cabinet is sequentially connected with flow controlling unit, flow detection unit and long nozzle gas outlet.
5. the control system of a kind of continuous casting protection pouring gas according to claim 1, it is characterized in that, described intermediate gas switch board and long nozzle gas control cabinet are internally provided with pneumatic filter, the outfan connection traffic control unit of pneumatic filter, regulation and control pipeline bifurcation in flow controlling unit, the regulation and control pipeline of the first branch road sets gradually gas pressure reducer and sizing orifice plate gas control system, the regulation and control pipeline of the second branch road arranges gas pressure reducer; Every bypass line of flow detection unit is respectively provided with gas flow sensor and gas pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521056364.8U CN205289695U (en) | 2015-12-17 | 2015-12-17 | Gaseous control system of continuous casting protection pouring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521056364.8U CN205289695U (en) | 2015-12-17 | 2015-12-17 | Gaseous control system of continuous casting protection pouring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205289695U true CN205289695U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521056364.8U Expired - Fee Related CN205289695U (en) | 2015-12-17 | 2015-12-17 | Gaseous control system of continuous casting protection pouring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205289695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545740A (en) * | 2020-05-18 | 2020-08-18 | 芜湖新兴铸管有限责任公司 | Automatic control system for air seal of ladle nozzle |
-
2015
- 2015-12-17 CN CN201521056364.8U patent/CN205289695U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545740A (en) * | 2020-05-18 | 2020-08-18 | 芜湖新兴铸管有限责任公司 | Automatic control system for air seal of ladle nozzle |
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| 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: 20160608 |
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| CF01 | Termination of patent right due to non-payment of annual fee |