CN104690241A - Device for preventing flow guiding sand from entering tundish of continuous casting machine - Google Patents
Device for preventing flow guiding sand from entering tundish of continuous casting machine Download PDFInfo
- Publication number
- CN104690241A CN104690241A CN201410634602.2A CN201410634602A CN104690241A CN 104690241 A CN104690241 A CN 104690241A CN 201410634602 A CN201410634602 A CN 201410634602A CN 104690241 A CN104690241 A CN 104690241A
- Authority
- CN
- China
- Prior art keywords
- continuous casting
- stuffing sand
- flow guiding
- river
- sand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004576 sand Substances 0.000 title claims abstract description 47
- 238000009749 continuous casting Methods 0.000 title claims abstract description 21
- 238000005266 casting Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 101100041681 Takifugu rubripes sand gene Proteins 0.000 claims description 41
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 23
- 239000010959 steel Substances 0.000 abstract description 23
- 238000000034 method Methods 0.000 abstract description 8
- 230000000087 stabilizing effect Effects 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 208000037805 labour Diseases 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000013051 drainage agent Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a device for preventing flow guiding sand from entering a tundish of a continuous casting machine. The device comprises a water gap opening degree control device, a flow guiding sand leading-out opening, a long water gap and a flow guiding sand receiving device. Automatic ladle casting is important for stabilizing a continuous casting operation process, increasing a continuous casting rate and ensuring the quality of molten steel. In order to reduce the hazards of flow guiding sand to the molten steel in the tundish, metallurgists at home and abroad do a lot of work and develop multiple continuous casting ladle casting flow guiding sand discharging devices. By the methods, secondary pollution caused by the molten steel is reduced to a certain extent, but the methods have the shortcomings that the methods are implemented without the protection of long water gaps, namely a part of molten steel is in contact with the air to be secondarily oxidized during casting, and the methods waste time and labors and are not good for reducing labor intensity and realizing automatic operation.
Description
Technical field
A kind of device entering stuffing sand in continuous casting tundish that prevents of the present invention belongs to continuous casting steel machine technical field, in particular, provides a kind of device being suitable for improving continuous casting billet degree of purity.
Background technology
Along with the development of science and technology, to steel product quality and performance requirement increasingly stringent thereof, further reduce impurity and inclusion content in steel, the cleanliness factor improving steel is concerned as an important challenge.For making ladle molten steel flow out smoothly after pulling open slide plate in continuous casting is produced, need in ladle upper nozzle, to add dystectic mealy oxide as stuffing sand (generally using chromium matter stuffing sand).After the slide plate at the mouth of a river is opened, molten steel can flow out automatically with the outflow of drainage agent, is usually referred to as automatic casting.The drawback that this mode of operation is brought be stuffing sand enter tundish thereupon and and molten steel react and cause field trash to enter molten steel causing secondary pollution.
Ladle automatic casting, to stabilizing continuous casting operating procedure, improves to connect and waters rate, ensures that steel quality is very important.In order to reduce the harm of stuffing sand to molten steel in tundish, metallargist both domestic and external does a lot of work, and develops many discharge continuous casting steels and unwraps and water stuffing sand device.These methods decrease the secondary pollution of molten steel to a certain extent; but weak point is these methods is all complete under not having long nozzle to protect; that is open water in have part molten steel to contact with air secondary oxidation occurs; and waste time and energy; be unfavorable for reducing labor intensity, realize automation mechanized operation.
Summary of the invention
The invention reside in a kind of stuffing sand that prevents and enter device in continuous casting tundish, overcome the deficiency of existing background technology, thus avoid the pollution of molten steel, effectively can improve the quality of continuous casting billet.
A kind of bottom preventing the device entering stuffing sand in continuous casting tundish to be arranged on large bag of the present invention, stuffing sand export mouth (2) is shifted onto pouring position opening the initial stage of watering by drive unit, stuffing sand is made to flow into stuffing sand catching device (5), thus avoid stuffing sand to enter tundish internal contamination molten steel, setting very short time in drainage sand flow complete after, under the driving of drive unit long nozzle revert to cast position start normal cast.
The present invention, through the checking of actual tests, can prevent stuffing sand from entering into tundish, prevent molten steel from being polluted and secondary oxidation, improve the quality of continuous casting billet.When stuffing sand can not flow out automatically, also carry out the operation of burning oxygen by this export mouth.Because stuffing sand can not enter tundish, in tundish, bits accumulative speed reduces, and can increase the service time of tundish.Therefore the method has very high using value and dissemination widely.
Accompanying drawing explanation
Fig. 1 is a kind of device schematic diagram preventing from entering in continuous casting tundish stuffing sand, and in figure, (1) is mouth of a river opening control device, and (2) are stuffing sand flow export, and (3) are long nozzle, and (4) are ladle bottom.
Fig. 2 is a kind of principle of device schematic diagram preventing from entering in continuous casting tundish stuffing sand, wherein (a) figure is that stuffing sand flows out schematic diagram, b () figure is that after stuffing sand flows out, steel flow goes out schematic diagram, in figure, (2) are stuffing sand flow export, (3) be long nozzle, (5) be stuffing sand catching device, (6) be lower skateboard, (7) be upper slide, (8) be stuffing sand, (9) ladle, (10) are molten steel.
Detailed description of the invention
oneplant the bottom preventing the device entering stuffing sand in continuous casting tundish to be arranged on large bag, install as shown in Figure 1, stuffing sand flow export (2) is shifted onto pouring position opening the initial stage of watering by drive unit hydraulic cylinder or electric cylinder etc., stuffing sand (8) is made to flow into stuffing sand catching device (5), thus prevent stuffing sand to tundish internal contamination molten steel, after drainage sand flow is complete, under the driving of drive unit long nozzle revert to cast position start normal cast.If stuffing sand can not flow out automatically, now can carry out the operation of burning oxygen, carry out this operation by stuffing sand flow export (2), then similarly drive long nozzle to revert to cast position and start normal cast.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
The above; be only preferred embodiment of the present invention; not in order to limit the present invention, every above embodiment is done according to technical spirit of the present invention any trickle amendment, equivalently replace and improve, within the protection domain that all should be included in technical solution of the present invention.
Claims (4)
1. prevent stuffing sand from entering a device in continuous casting tundish, comprise mouth of a river opening control device (1), stuffing sand export mouth (2), long nozzle (3), stuffing sand catching device (5).
2. a kind of stuffing sand that prevents according to claim 1 enters device in continuous casting tundish, it is characterized in that a filling pipe end and the corresponding one piece of lower skateboard of one piece of upper slide and two lower mouths of a river, in two lower mouths of a river one for normal casting, another is for deriving stuffing sand.Also middle slide plate can be set between upper slide and lower skateboard according to operation and control overflow.
3. one of two lower mouths of a river according to claim 2 stuffing sand derive the mouth of a river, when ladle draining sand can not automatically flow out cause opening water unsuccessfully time, also can be used for burn oxygen open the mouth of a river, derive stuffing sand simultaneously.
4. the mouth of a river according to claim 1 opening control device (1), can adopt common hydraulic cylinder or electric cylinder to drive, reduce investment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410634602.2A CN104690241A (en) | 2014-10-27 | 2014-10-27 | Device for preventing flow guiding sand from entering tundish of continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410634602.2A CN104690241A (en) | 2014-10-27 | 2014-10-27 | Device for preventing flow guiding sand from entering tundish of continuous casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104690241A true CN104690241A (en) | 2015-06-10 |
Family
ID=53338003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410634602.2A Pending CN104690241A (en) | 2014-10-27 | 2014-10-27 | Device for preventing flow guiding sand from entering tundish of continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104690241A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620544A (en) * | 2018-06-04 | 2018-10-09 | 东北大学 | A kind of casting process control stuffing sand enters the method for tundish |
| CN113210595A (en) * | 2021-04-23 | 2021-08-06 | 武汉钢铁有限公司 | Multifunctional steel ladle sliding plate device and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2805981Y (en) * | 2005-07-21 | 2006-08-16 | 江阴兴澄特种钢铁有限公司 | Apparatus for ejecting drainage sand for continuous casting large ladle gating |
| CN201720406U (en) * | 2010-06-22 | 2011-01-26 | 浙江青山钢铁有限公司 | Continuous casting tundish stuffing sand separating device |
| CN103240410A (en) * | 2013-05-17 | 2013-08-14 | 莱芜钢铁集团有限公司 | Sliding nozzle device for improving molten steel cleanliness by separating and recovering stuffing sand |
| CN203197241U (en) * | 2013-04-18 | 2013-09-18 | 南京钢铁股份有限公司 | Large-ladle drainage sand eliminating device |
| CN203470894U (en) * | 2013-05-17 | 2014-03-12 | 莱芜钢铁集团有限公司 | Sliding nozzle device for improving molten steel cleanliness by separating and recovering stuffing sand |
-
2014
- 2014-10-27 CN CN201410634602.2A patent/CN104690241A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2805981Y (en) * | 2005-07-21 | 2006-08-16 | 江阴兴澄特种钢铁有限公司 | Apparatus for ejecting drainage sand for continuous casting large ladle gating |
| CN201720406U (en) * | 2010-06-22 | 2011-01-26 | 浙江青山钢铁有限公司 | Continuous casting tundish stuffing sand separating device |
| CN203197241U (en) * | 2013-04-18 | 2013-09-18 | 南京钢铁股份有限公司 | Large-ladle drainage sand eliminating device |
| CN103240410A (en) * | 2013-05-17 | 2013-08-14 | 莱芜钢铁集团有限公司 | Sliding nozzle device for improving molten steel cleanliness by separating and recovering stuffing sand |
| CN203470894U (en) * | 2013-05-17 | 2014-03-12 | 莱芜钢铁集团有限公司 | Sliding nozzle device for improving molten steel cleanliness by separating and recovering stuffing sand |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620544A (en) * | 2018-06-04 | 2018-10-09 | 东北大学 | A kind of casting process control stuffing sand enters the method for tundish |
| CN113210595A (en) * | 2021-04-23 | 2021-08-06 | 武汉钢铁有限公司 | Multifunctional steel ladle sliding plate device and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150610 |