CN106001515A - Molten steel precooling device and method - Google Patents
Molten steel precooling device and method Download PDFInfo
- Publication number
- CN106001515A CN106001515A CN201610606941.9A CN201610606941A CN106001515A CN 106001515 A CN106001515 A CN 106001515A CN 201610606941 A CN201610606941 A CN 201610606941A CN 106001515 A CN106001515 A CN 106001515A
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- China
- Prior art keywords
- housing
- molten steel
- air inlet
- pipe
- inlet pipe
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/003—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using inert gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/08—Shaking, vibrating, or turning of moulds
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a molten steel precooling device which comprises a shell, a flow-in pipe, a flow-out pipe, an air inlet pipe and an air outlet pipe. A cover plate is hinged to the end, connected with the shell, of the air inlet pipe, the input end of the air inlet pipe is provided with an air-blowing motor and an air supply bin, the air inlet pipe is provided with a flow control switch, and a temporary storage bin for inert gas is connected to the output end of the air outlet pipe; the top of the shell is provided with an extraction opening, an extraction mechanism is arranged at one side of the extraction opening, the extraction mechanism comprises an extraction pipe, a filter and an exhaust fan, and a first concentration sensor is arranged on the joint of the extraction opening and the shell; a first temperature sensor and a second temperature sensor are arranged on the joint of the air inlet pipe and the shell and the joint of the extraction pipe and the shell respectively, and at least one second concentration sensor is arranged on the inner wall of the shell. The molten steel precooling device can effectively avoid the contact of molten steel and air, accelerate cooling and crusting of the molten steel and improve the quality of steel.
Description
Technical field
The present invention relates to cast steel apparatus field, be related specifically to a kind of molten steel and precool apparatus and method.
Background technology
Steel need to be cooled into molten steel strand during producing, and the process of molten steel solidification experiences successively
Molten steel cooling, nucleus are formed, nuclei growth and being fully cured.In general, the nucleus that early solidification is formed
The most, after molten steel solidification experience more refinements, steel quality is the best.Therefore the quality of the early solidification of molten steel
Particularly important to the quality of steel.Traditional molten steel cooling is in a cooling chamber is located at by substantial amounts of molten steel,
Making molten steel stand cooling, the rate of cooling of this type of cooling molten steel is slow, and crust is slow, and in the mistake of cooling
In journey molten steel can to some extent with air contact, produce bubble, had a strong impact on the quality of steel.
Summary of the invention
Present invention aims to deficiency of the prior art, it is provided that a kind of molten steel precools device and side
Method, to solve the problems referred to above.
Technical problem solved by the invention can realize by the following technical solutions:
A kind of molten steel precools device, including housing, near the molten steel that is respectively provided on two sides with of the bottom of housing
Flow to pipe and effuser, flow to pipe identical with the caliber of effuser, and be symmetrically set in the two ends of housing, flow to
The upper end of pipe and effuser is respectively equipped with air inlet pipe and the escape pipe of noble gas, air inlet pipe and the pipe of escape pipe
Footpath is identical and one end is connected with housing respectively, and the end of one end that air inlet pipe is connected with housing is hinged is provided with lid
Plate, cover plate is located in housing and the bore of its size and air inlet pipe adapts, and the input of air inlet pipe is provided with and blows
Wind turbine and supply storehouse, air inlet pipe is provided with flow control switch, and the outfan of escape pipe connects indifferent gas
The temporary warehouse of body；The top of housing offers bleeding point, and the side of bleeding point is provided with extraction sector, air exhauster
Structure includes exhaust tube, filter and air exhauster, and one end of exhaust tube is connected with bleeding point, and the other end passed through
Filter is connected with air exhauster, and bleeding point is provided with the first concentration sensor with the junction of housing；Air inlet pipe and taking out
Trachea is respectively equipped with the first temperature sensor and the second temperature sensor with the junction of housing；The inwall of housing
On at least provided with one for monitoring the second concentration sensor of inert gas concentration, the second concentration sensor
Level height is identical with the level height at the top of air inlet pipe.
Further, the bottom of described housing is provided with vibrating mechanism, and vibrating mechanism includes vibrating motor and vibration
Shell, vibration shell is connected to the bottom of housing, and vibrating motor is located in vibration shell.
Further, the sidewall of described housing is provided with some forms, and the level height of the bottom of form is more than
The level height at the top of air inlet pipe.
Further, the side at the top of described housing offers regulation and control mouth, and the side of regulation and control mouth is provided with air pressure
Regulating and controlling mechanism, air pressure controlling mechanism includes horizontal separator tube, U-tube and elastic bag, horizontal separator tube
Two ends are connected with the one end regulating and controlling mouth and U-tube respectively, and the other end of U-tube is connected with elastic bag.
Further, described horizontal separator tube and U-tube are clear glass material, are provided with coloured in U-tube
Liquid, U-tube includes that the longitudinal direction being sequentially connected is long-armed, the recessed pipe of arc and longitudinal galianconism, horizontal separator tube with
The most long-armed one end is connected, and elastic bag is connected with one end of longitudinal galianconism.
Further, described elastic bag is quality of rubber materials.
A kind of molten steel cooling means, enters air inlet pipe in by air blast motor from supply storehouse by noble gas, logical
Inflow-rate of water turbine controls on-off control noble gas uninterrupted in air inlet pipe, and cover plate is backed down also by noble gas
Upwards dig, make noble gas enter diagonally downward in housing, cover plate arranges inductive probe, when sensing is visited
Head detects when cover plate upwards digs action, filter and air exhauster work, makes the gas in housing upwards take out
Go out, so that noble gas forms reverse circulation in housing；When the inertia that the second concentration sensor detects
When gas concentration reaches setting value, molten steel enters in housing along flowing to pipe, and vibrating motor is started working, when
When the concentration of the noble gas that the first concentration sensor detects reaches setting value, filter and air exhauster stop
Work, now flow control switch is opened to maximum, and cover plate is backed down to horizontal level by noble gas, lazy
Property gas in air inlet pipe, be injected into housing in and molten steel upper surface formed air-cushion protection layer；Work as housing
When internal gas pressure is excessive, noble gas enters horizontal separator tube by regulation and control mouth, and by the coloured liquid in U-tube
Body press-in elastic bag, elastic bag is provided with gravity sensor, the colored liquid in entering elastic bag
Weight when reaching the setting value upper limit, filter and air exhauster work make the air pressure in housing reduce, and work as housing
When interior air pressure is normal, colored liquid backs into U-tube in elastic bag, when gravity sensor detects
When the weight of the colored liquid entered in elastic bag reaches setting value lower limit, filter and air exhauster work
Quit work.
Compared with prior art, beneficial effects of the present invention is as follows:
Present configuration is compact, easy to use, uses and injects inert gas in housing, the bottom in housing
The concentration of noble gas when reaching a certain amount of, noble gas forms protective layer in housing, is injected by molten steel
In housing, it is not necessary to just molten steel can be directly injected into being full of noble gas in whole housing in housing, accelerate
Cooling progress, effectively prevent molten steel when entering housing and air contact simultaneously；By by air pressure controlling
Mechanism is located at the outside of housing, it is not necessary to arranges pressure sensitive device in housing, not only makes housing internal gas pressure
Change is more directly perceived, and easy to maintenance and with low cost；When the concentration of the noble gas in housing reaches one
Time quantitatively, flow control switch being opened to maximum, noble gas is injected in housing in air inlet pipe
And at the upper surface formation air-cushion protection layer of molten steel, noble gas quickly flows on the upper surface of molten steel, no
Only the contacting of next door molten steel and air, improves the quality of steel, can take away substantial amounts of heat simultaneously, add
The cooling of fast molten steel and crust.
Accompanying drawing explanation
Fig. 1 is the structural representation that molten steel of the present invention precools device.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect,
Below in conjunction with detailed description of the invention, the present invention is expanded on further.
Seeing Fig. 1, a kind of molten steel of the present invention precools device, including housing 10, near housing 10
Bottom be respectively provided on two sides with molten steel flow to pipe 21 and effuser 22.Flow to pipe 21 and effuser 22
Caliber is identical, and is symmetrically set in the two ends of housing 10.The upper end flowing to pipe 21 and effuser 22 is respectively equipped with
The air inlet pipe 31 of noble gas and escape pipe 32, noble gas can be nitrogen, argon or other inert gas
Body.Air inlet pipe 31 is identical with the caliber of escape pipe 32 and one end is connected with housing 10 respectively.Air inlet pipe 31
The hinged cover plate 33 that is provided with in the end of the one end being connected with housing 10, in housing 10 is located at by cover plate 33 and its size
Adapt with the bore of air inlet pipe 31.The input of air inlet pipe 31 is provided with air blast motor 41 and supply storehouse 42.
Air inlet pipe 31 is provided with flow control switch 34, and the outfan of escape pipe 32 connects the temporary storage having noble gas
Storehouse 43.Returning of noble gas can be set during actually used between supply storehouse 42 and temporary warehouse 43
Receive circulating device (not drawing in figure), so can be greatly reduced the usage amount of noble gas, make noble gas make
Reusable edible during with.The top of housing 10 offers bleeding point 11, and the side of bleeding point 11 sets
There is extraction sector.Extraction sector includes exhaust tube 51, filter 52 and air exhauster 53, the one of exhaust tube 51
End is connected with bleeding point 11, and the other end is connected with air exhauster 53 by filter 52.Exhaust tube 51 with
The caliber size of one end that suction opeing 11 is connected is in the bore of its one end being connected with air exhauster 53.From housing
The gas extracted out in 10 enters air after filter 52 filters, and decreases the burden of air.Bleeding point 11
It is provided with the first concentration sensor 54 with the junction of housing 10.Air inlet pipe 31 and exhaust tube 51 and housing 10
Junction be respectively equipped with the first temperature sensor 35 and the second temperature sensor 55, can effectively detect turnover shell
The temperature of the gas of body 10, when the temperature that the first temperature sensor 35 and the second temperature sensor 55 detect
When reaching stationary value, the noble gas in housing 10 reaches steady statue.At least set on the inwall of housing 10
There is one for the second concentration sensor (not drawing in figure) monitoring inert gas concentration.Second concentration sensor
Level height identical with the level height at the top of air inlet pipe 31.
The bottom of housing 10 is provided with vibrating mechanism, and vibrating mechanism includes vibrating motor 61 and vibration shell 62, shakes
Dynamic shell 62 is connected to the bottom of housing 10, and vibrating motor 61 is located in vibration shell 62.Pass through vibrating mechanism
Vibration can effectively discharge the bubble in molten steel 90, improve molten steel 90 mass.
The sidewall of housing 10 is provided with some forms 70, and the level height of the bottom of form 70 is more than air inlet pipe
The level height at the top of 31.
The side at the top of housing 10 offers regulation and control mouth 12, and the side of regulation and control mouth 12 is provided with air pressure controlling machine
Structure.Air pressure controlling mechanism includes horizontal separator tube 81, U-tube 82 and elastic bag 83, horizontal separator tube
The two ends of 81 are connected with the one end regulating and controlling mouth 12 and U-tube 82 respectively, and horizontal separator tube 81 is by connecting
Head is connected with regulation and control mouth 12, and the other end of U-tube 82 is connected with elastic bag 83.By air pressure controlling mechanism
It is located at the outside of housing 10, it is not necessary to pressure sensitive device is set in housing 10, not only makes gas in housing 10
The change of pressure is more directly perceived, and easy to maintenance and with low cost.
Laterally separator tube 81 and U-tube 82 are clear glass material, are provided with colored liquid in U-tube 82,
U-tube 82 includes that the longitudinal direction being sequentially connected is long-armed, the recessed pipe of arc and longitudinal galianconism, horizontal separator tube 81 with
The most long-armed one end is connected, and elastic bag 83 is connected with one end of longitudinal galianconism.Elastic bag 83 is rubber
Glue material.
The present invention is during using, and noble gas enters air inlet by air blast motor 41 from supply storehouse 42
In pipe 31, control noble gas uninterrupted in air inlet pipe 31 by flow control switch 34.Inertia
Cover plate 33 is backed down and upwards digs by gas, makes noble gas enter diagonally downward in housing 10, and at shell
The protective layer of noble gas is formed on the bottom of body.On cover plate 33, inductive probe is set, when inductive probe detects
When cover plate 33 upwards digs action, filter 52 and air exhauster 53 work, make gas in housing 10 to
Upper extraction, so that noble gas forms reverse circulation in housing.When second concentration sensor detects
When inert gas concentration reaches setting value, molten steel 90 enters in housing 10 along flowing to pipe 21, vibrating motor
61 start working.When the concentration of the noble gas that the first concentration sensor 54 detects reaches setting value, mistake
Filter 52 and air exhauster 53 quit work, and now flow control switch is opened to maximum, and cover plate 33 is lazy
Property gas backs down to horizontal level, in noble gas is injected into housing 10 in air inlet pipe 31 and at molten steel
The upper surface of 90 forms air-cushion protection layer.Molten steel is formed while protecting by the quickly flowing of noble gas, also
The substantial amounts of heat taken away, makes steel progressively cool down.When housing 10 internal gas pressure is excessive, noble gas passes through
Regulation and control mouth 12 enters horizontal separator tube 81, and the colored liquid in U-tube 82 is pressed into elastic bag 83.
Elastic bag 83 is provided with gravity sensor, and the weight of the colored liquid in entering elastic bag 83 reaches
During the setting value upper limit, filter 52 and air exhauster 53 work make the air pressure in housing 10 reduce.When housing 10
When interior air pressure is normal, colored liquid backs into U-tube 82 in elastic bag 83.Work as gravity sensor
Detect when the weight of the colored liquid entered in elastic bag 83 reaches setting value lower limit, filter 52
Quit work with air exhauster 53 work.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.The industry
Skilled person will appreciate that, the present invention is not restricted to the described embodiments, in above-described embodiment and description
The principle that the present invention is simply described described, without departing from the spirit and scope of the present invention, the present invention
Also having various changes and modifications, these changes and improvements both fall within scope of the claimed invention.This
The claimed scope of invention is defined by appending claims and equivalent thereof.
Claims (7)
1. a molten steel precools device, it is characterised in that: include housing, near the both sides of the bottom of housing
Be respectively equipped with molten steel flows to pipe and effuser, flows to pipe identical with the caliber of effuser, and is symmetrically set in shell
The two ends of body, the upper end flowing to pipe and effuser is respectively equipped with air inlet pipe and the escape pipe of noble gas, air inlet
Manage and one end identical with the caliber of escape pipe to be connected with housing respectively, one end that air inlet pipe is connected with housing
The hinged cover plate that is provided with in end, cover plate is located in housing and the bore of its size and air inlet pipe adapts, air inlet pipe
Input be provided with air blast motor and supply storehouse, air inlet pipe is provided with flow control switch, the output of escape pipe
End connects the temporary warehouse having noble gas；The top of housing offers bleeding point, and the side of bleeding point is provided with takes out
Mechanism of qi structure, extraction sector includes exhaust tube, filter and air exhauster, and one end of exhaust tube is connected with bleeding point,
The other end is connected with air exhauster by filter, and bleeding point is provided with the first concentration sensor with the junction of housing；
The junction of air inlet pipe and exhaust tube and housing is respectively equipped with the first temperature sensor and the second temperature sensor；
At least provided with one for monitoring the second concentration sensor of inert gas concentration on the inwall of housing, second is dense
The level height of degree sensor is identical with the level height at the top of air inlet pipe.
Molten steel the most according to claim 1 precools device, it is characterised in that: the bottom of described housing
Being provided with vibrating mechanism, vibrating mechanism includes vibrating motor and vibration shell, and vibration shell is connected to the bottom of housing,
Vibrating motor is located in vibration shell.
Molten steel the most according to claim 1 precools device, it is characterised in that: the sidewall of described housing
Being provided with some forms, the level height of the bottom of form is more than the level height at the top of air inlet pipe.
Molten steel the most according to claim 1 precools device, it is characterised in that: the top of described housing
Side offer regulation and control mouth, the side of regulation and control mouth is provided with air pressure controlling mechanism, and air pressure controlling mechanism includes horizontal stroke
To separator tube, U-tube and elastic bag, the two ends of horizontal separator tube respectively with regulation and control mouth and the one of U-tube
End is connected, and the other end of U-tube is connected with elastic bag.
Molten steel the most according to claim 4 precools device, it is characterised in that: described horizontal separator tube
Being clear glass material with U-tube, be provided with colored liquid in U-tube, U-tube includes that be sequentially connected indulges
To long-armed, the recessed pipe of arc and longitudinal galianconism, horizontal separator tube is connected with the most long-armed one end, elastic bag
It is connected with one end of longitudinal galianconism.
Molten steel the most according to claim 4 precools device, it is characterised in that: described elastic bag is
Quality of rubber materials.
7. a molten steel cooling means, it is characterised in that: noble gas is entered from supply storehouse by air blast motor
Enter in air inlet pipe, control noble gas uninterrupted in air inlet pipe, indifferent gas by flow control switch
Cover plate is backed down and upwards digs by body, makes noble gas enter diagonally downward in housing, cover plate arranges sensing
Probe, when inductive probe detects that cover plate upwards digs action, filter and air exhauster work, make housing
Interior gas is drawn upwardly out, so that noble gas forms reverse circulation in housing；When the second concentration senses
When the inert gas concentration that device detects reaches setting value, molten steel enters in housing along flowing to pipe, vibration electricity
Machine is started working, and when the concentration of the noble gas that the first concentration sensor detects reaches setting value, filters
Device and air exhauster quit work, and now flow control switch is opened to maximum, and cover plate is backed down by noble gas
To horizontal level, in noble gas is injected into housing in air inlet pipe and at the upper surface of molten steel, form air cushion
Protective layer；When housing internal gas pressure is excessive, noble gas enters horizontal separator tube by regulation and control mouth, and by U
Colored liquid press-in elastic bag in shape pipe, elastic bag is provided with gravity sensor, when entering elastic gas
When the weight of the colored liquid in capsule reaches the setting value upper limit, filter and air exhauster work make the gas in housing
Pressure drop is low, and when the air pressure in housing is normal, colored liquid backs into U-tube in elastic bag, when weight
Power induction apparatus detects when the weight of the colored liquid entered in elastic bag reaches setting value lower limit, filters
Device and air exhauster work quit work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610606941.9A CN106001515B (en) | 2016-07-28 | 2016-07-28 | A kind of molten steel precools apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610606941.9A CN106001515B (en) | 2016-07-28 | 2016-07-28 | A kind of molten steel precools apparatus and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106001515A true CN106001515A (en) | 2016-10-12 |
| CN106001515B CN106001515B (en) | 2018-02-06 |
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ID=57115638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610606941.9A Active CN106001515B (en) | 2016-07-28 | 2016-07-28 | A kind of molten steel precools apparatus and method |
Country Status (1)
| Country | Link |
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| CN (1) | CN106001515B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108546430A (en) * | 2018-06-19 | 2018-09-18 | 重庆阿罗网络科技有限公司 | Colour-wash production system |
| CN111922307A (en) * | 2020-07-20 | 2020-11-13 | 靖江市巨阳冶金设备制造有限公司 | Molten steel pre-cooling device for high-speed continuous casting machine |
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| JPS632534A (en) * | 1986-06-23 | 1988-01-07 | Kawasaki Steel Corp | Method of bottom pouring steel ingot making |
| US20080115906A1 (en) * | 2006-11-22 | 2008-05-22 | Peterson Oren V | Method and Apparatus for Horizontal Continuous Metal Casting in a Sealed Table Caster |
| CN102554194A (en) * | 2012-03-07 | 2012-07-11 | 福安市广源机电有限公司 | Gas purifying device for fusion welding wire of electrode lead plate of energy-saving environment-friendly lead-acid cell |
| CN103547393A (en) * | 2011-04-01 | 2014-01-29 | Ieco不断完善有限公司 | Machine for forming metal bars |
| CN204419657U (en) * | 2014-12-19 | 2015-06-24 | 黄洋铜业有限公司 | For the air extractor of aluminium liquid cooling pond |
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2016
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS632534A (en) * | 1986-06-23 | 1988-01-07 | Kawasaki Steel Corp | Method of bottom pouring steel ingot making |
| US20080115906A1 (en) * | 2006-11-22 | 2008-05-22 | Peterson Oren V | Method and Apparatus for Horizontal Continuous Metal Casting in a Sealed Table Caster |
| CN103547393A (en) * | 2011-04-01 | 2014-01-29 | Ieco不断完善有限公司 | Machine for forming metal bars |
| CN105583381A (en) * | 2011-04-01 | 2016-05-18 | 伊克一有限责任公司 | Machine for forming metal bars |
| CN102554194A (en) * | 2012-03-07 | 2012-07-11 | 福安市广源机电有限公司 | Gas purifying device for fusion welding wire of electrode lead plate of energy-saving environment-friendly lead-acid cell |
| CN204419657U (en) * | 2014-12-19 | 2015-06-24 | 黄洋铜业有限公司 | For the air extractor of aluminium liquid cooling pond |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108546430A (en) * | 2018-06-19 | 2018-09-18 | 重庆阿罗网络科技有限公司 | Colour-wash production system |
| CN111922307A (en) * | 2020-07-20 | 2020-11-13 | 靖江市巨阳冶金设备制造有限公司 | Molten steel pre-cooling device for high-speed continuous casting machine |
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| Publication number | Publication date |
|---|---|
| CN106001515B (en) | 2018-02-06 |
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