CN104096830A - Ladle long-nozzle argon tank - Google Patents

Ladle long-nozzle argon tank Download PDF

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Publication number
CN104096830A
CN104096830A CN201310129183.2A CN201310129183A CN104096830A CN 104096830 A CN104096830 A CN 104096830A CN 201310129183 A CN201310129183 A CN 201310129183A CN 104096830 A CN104096830 A CN 104096830A
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China
Prior art keywords
valve
pressure
argon
flow
output
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CN201310129183.2A
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Chinese (zh)
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CN104096830B (en
Inventor
樊兴奇
刘能武
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VESUVIUS CERAMIC (SUZHOU) CO Ltd
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VESUVIUS CERAMIC (SUZHOU) CO Ltd
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Priority to CN201310129183.2A priority Critical patent/CN104096830B/en
Publication of CN104096830A publication Critical patent/CN104096830A/en
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Publication of CN104096830B publication Critical patent/CN104096830B/en
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Abstract

The invention provides a ladle long-nozzle argon tank which comprises a ball valve, wherein the ball valve is arranged at an inlet end of the argon tank; an outlet end of the ball valve is connected with an input end of a flow adjusting valve; an output end of the flow adjusting valve is connected with the input end of a pressure adjusting valve; the output end of the pressure adjusting valve is connected with the ball valve at the outlet end of the argon tank; a flow detecting valve and a pressure detecting valve are arranged between the pressure adjusting valve and the ball valve at the outlet end of the argon tank; the output end of the pressure adjusting valve is connected with the input end of the flow detecting valve; the output end of the flow detecting valve is connected with the input end of the pressure detecting valve; the output end of the pressure detecting valve is connected with the ball valve at the outlet end of the argon tank. Compared with the prior art, the ladle long-nozzle argon tank has the advantages that the operation and management for blowing argon into an upper water gap are realized, a positive pressure value of a joint is ensured under a minimum flow condition, the product quality accident caused by suction and the bubble problem of a casting blank caused by excessive flow are extremely avoided, the dosage of argon is reduced and the cost is lowered.

Description

Ladle long nozzle argon air box
Technical field
The present invention relates to a kind of continuous casting ladle long nozzle argon air box.
Background technology
In the casting cycle of continuous casting, molten steel in ladle enters into tundish by ladle mechanism and long nozzle, collector nozzle of ladle is wherein connected by long nozzle clamper with long nozzle, in connection procedure, can not guarantee slitless connection, in steel pouring process, the molten steel of rapid flow can produce negative pressure, and air can enter in molten steel by road seam.Not only can cause the erosion of resistance to material, also can cause molten steel nitrogen pick-up, oxide stops up a series of problems such as the mouth of a river, thus need in seam, pass into inert gas argon gas, to form malleation to prevent the suction of air.But be blown into too much argon gas and also can affect the quality of strand.For example the argon gas bubbles in continuous casting billet can produce serious quality problems, and waste product even, so need to carry out to the argon gas being blown into adjusting and the detection of flow and pressure.
Common long nozzle argon air box only has pressure-regulating valve and the flow control valve of import at present, outlet lacks Pressure gauge, cannot determine the argon envelope situation between long nozzle and the lower mouth of a river, the size of flow also can only be with operating personnel's micro-judgment, there is uncertainty, cannot guarantee to guarantee the malleation value between seam in the situation that using minimum discharge.Secondly, the environment of steel mill is severe, particularly water steel region, high temperature Gao Regao dust, long nozzle argon air box is arranged on the tundish of continuous casting, and this regional space is narrow and small, operating personnel can not arbitrarily monitor the flow of argon gas and pressure at any time, even can cause source of the gas in casting cycle to be turn-offed undiscovered phenomenon by mistake, cause molten steel nitrogen pick-up, product is defective.
Summary of the invention
The object of the invention is to solve above-mentioned technical problem, a kind of ladle long nozzle argon air box is provided.
Object of the present invention is achieved through the following technical solutions:
Ladle long nozzle argon air box, comprise the ball valve that is arranged on argon air box entrance point, the port of export of described ball valve is connected with the input of flow control valve, the output of described flow control valve is connected with the input of pressure-regulating valve, the output of described pressure-regulating valve is connected with the ball valve of the argon air box port of export, between the ball valve of described pressure-regulating valve and the argon air box port of export, be also provided with flow rate measurement valve and pressure detecting valve, the output of described pressure-regulating valve is connected with the input of flow rate measurement valve, the output of described flow rate measurement valve is connected with the input of pressure detecting valve, the output of described pressure detecting valve is connected with the ball valve of the argon air box port of export.
Preferably, described argon air box also comprises that one for recording and analyze the PLC control module of flow and pressure information, and described PLC control module and flow rate measurement valve and pressure detecting valve are electrically connected.
Beneficial effect of the present invention is mainly reflected in: the flow of port of export argon gas and pressure are monitored, and the current signal after transforming is fed back to the PLC control module of continuous casting master-control room, realized the operation of filling pipe end Argon and management, the in the situation that of minimum discharge, guaranteed seam malleation value, stop air-breathingly, farthest avoided the product quality accident that causes because of air-breathing and the excessive strand air bubble problem bringing of flow, also reduced argon gas consumption, reduced cost simultaneously.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Fig. 1: ladle long nozzle argon air box catenation principle schematic diagram of the present invention.
The specific embodiment
The present invention has disclosed a kind of ladle long nozzle argon air box, as shown in Figure 1, consistent with prior art, comprise the ball valve 1 that is arranged on argon air box entrance point, the port of export of described ball valve 1 is connected with the input of flow control valve 2, the output of described flow control valve 2 is connected with the input of pressure-regulating valve 3, and the output of described pressure-regulating valve 3 is connected with the ball valve (meaning not shown in the figures) of the argon air box port of export.
Different is, between described pressure-regulating valve 3 and the ball valve of the argon air box port of export, be also provided with flow rate measurement valve 4 and pressure detecting valve 5, the output of described pressure-regulating valve 3 is connected with the input of flow rate measurement valve 4, the output of described flow rate measurement valve 4 is connected with the input of pressure detecting valve 5, and the output of described pressure detecting valve 3 is connected with the ball valve of the argon air box port of export.For the argon flow amount in argon air box and pressure are better controlled analysis, described argon air box also comprises a PLC control module 6.Described PLC control module 6 is electrically connected with flow rate measurement valve 4 and pressure detecting valve 5.The value of detecting is monitored by PLC control module 6, reports to the police and management.
The beneficial effect that the present invention produces is, by the monitoring to outlet pressure, argon envelope malleation value that can on-line monitoring long nozzle seam, has stopped the air-breathing product quality of bringing of long nozzle and resistance to material safety problem (because of air-breathing, corroding resistance to material).
By the monitoring of argon flow amount also having been guaranteed to argon flow amount minimum on the basis of malleation value, to reduce the argon gas amount in molten steel, reduced the quality accident causing because of Argon Bubble in strand.
Feedback by host computer to argon flow amount and pressure, has facilitated operation supervise and control and data management and has reviewed, and has realized the automatic management of argon envelope.
The present invention still has multiple concrete embodiment, and all employings are equal to replacement or equivalent transformation and all technical schemes of forming, within all dropping on the scope of protection of present invention.

Claims (2)

1. ladle long nozzle argon air box, comprise the ball valve that is arranged on argon air box entrance point, the port of export of described ball valve is connected with the input of flow control valve, the output of described flow control valve is connected with the input of pressure-regulating valve, the output of described pressure-regulating valve is connected with the ball valve of the argon air box port of export, it is characterized in that: between described pressure-regulating valve and the ball valve of the argon air box port of export, be also provided with flow rate measurement valve and pressure detecting valve, the output of described pressure-regulating valve is connected with the input of flow rate measurement valve, the output of described flow rate measurement valve is connected with the input of pressure detecting valve, the output of described pressure detecting valve is connected with the ball valve of the argon air box port of export.
2. ladle long nozzle argon air box according to claim 1, is characterized in that: described argon air box also comprises that one for recording and analyze the PLC control module of flow and pressure information, and described PLC control module and flow rate measurement valve and pressure detecting valve are electrically connected.
CN201310129183.2A 2013-04-15 2013-04-15 Ladle long nozzle argon air box Active CN104096830B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310129183.2A CN104096830B (en) 2013-04-15 2013-04-15 Ladle long nozzle argon air box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310129183.2A CN104096830B (en) 2013-04-15 2013-04-15 Ladle long nozzle argon air box

Publications (2)

Publication Number Publication Date
CN104096830A true CN104096830A (en) 2014-10-15
CN104096830B CN104096830B (en) 2016-08-03

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105033236A (en) * 2015-08-25 2015-11-11 首钢京唐钢铁联合有限责任公司 Ladle filler sand discharge device and continuous casting ladle casting starting method
CN107812899A (en) * 2016-09-13 2018-03-20 宝钢特钢有限公司 On-line checking molds the device and detection method of argon gas protecting effect
CN111230055A (en) * 2020-03-18 2020-06-05 无锡梯威信息科技有限公司 Automatic argon gas control device for preventing oxidation during steel pouring

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200949753Y (en) * 2006-06-26 2007-09-19 上海梅山钢铁股份有限公司 Control system for argon gas box
CN201313045Y (en) * 2008-11-26 2009-09-23 中国科学院广州地球化学研究所 Hydrocarbon generation kinetics high-pressure thermal simulation device of rock sample
KR20110096806A (en) * 2010-02-23 2011-08-31 주식회사 장원엔지니어링 Device control argon gas for nozzle tundish
CN203197237U (en) * 2013-04-15 2013-09-18 维苏威高级陶瓷(苏州)有限公司 Ladle long nozzle argon tank

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200949753Y (en) * 2006-06-26 2007-09-19 上海梅山钢铁股份有限公司 Control system for argon gas box
CN201313045Y (en) * 2008-11-26 2009-09-23 中国科学院广州地球化学研究所 Hydrocarbon generation kinetics high-pressure thermal simulation device of rock sample
KR20110096806A (en) * 2010-02-23 2011-08-31 주식회사 장원엔지니어링 Device control argon gas for nozzle tundish
CN203197237U (en) * 2013-04-15 2013-09-18 维苏威高级陶瓷(苏州)有限公司 Ladle long nozzle argon tank

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105033236A (en) * 2015-08-25 2015-11-11 首钢京唐钢铁联合有限责任公司 Ladle filler sand discharge device and continuous casting ladle casting starting method
CN105033236B (en) * 2015-08-25 2017-11-28 首钢京唐钢铁联合有限责任公司 The outer arranging device of stuffing sand and Con casting ladle method for pouring
CN107812899A (en) * 2016-09-13 2018-03-20 宝钢特钢有限公司 On-line checking molds the device and detection method of argon gas protecting effect
CN111230055A (en) * 2020-03-18 2020-06-05 无锡梯威信息科技有限公司 Automatic argon gas control device for preventing oxidation during steel pouring

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Address after: 215021 221 star Ming Street, Suzhou City, Jiangsu Province

Applicant after: VESUVIUS ADVANCED CERAMICS (CHINA) CO., LTD.

Address before: 215021 221 star Ming Street, Suzhou City, Jiangsu Province

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