CN203613216U - Thermal insulation device for argon blowing of refined steel ladle - Google Patents
Thermal insulation device for argon blowing of refined steel ladle Download PDFInfo
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- CN203613216U CN203613216U CN201320637491.1U CN201320637491U CN203613216U CN 203613216 U CN203613216 U CN 203613216U CN 201320637491 U CN201320637491 U CN 201320637491U CN 203613216 U CN203613216 U CN 203613216U
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Abstract
The utility model provides a thermal insulation device for argon blowing of a refined steel ladle. The thermal insulation device comprises a disc-shaped device body, wherein the device body is arranged above an upper opening of the steel ladle, and the outer diameter is larger than the diameter of the upper opening of the steel ladle; a charging through hole used for argon blowing, alloy wire feeding and cold material adding is formed in the middle area of the device body; the disc-shaped device body is made of ductile cast iron and comprises a first semicircular body and a second semicircular body which are structurally symmetric and connected through a fastening device; the fastening device comprises a first group of fastening pieces, a second group of fastening pieces and connecting rib plates. The provided thermal insulation device can be arranged in the position, located at a certain height, above the upper opening of the steel ladle, so that splashing of steel slag is prevented. Preferably, the thermal insulation device is made in a casting mode, and a water-cooling coil pipe is pre-buried in the cast iron simultaneously, so that thermal insulation can be better performed on molten steel and an argon blowing platform.
Description
Technical field
The utility model relates to metallurgical refining unit technical field, particularly a kind of refined molten steel bag Argon heat insulating device.
Background technology
In steel making working procedure, liquid molten steel will pass through refining position, i.e. " converter-refining-continuous casting " by ladle carrying from converter to continuous casting.Wherein, refining position comprises refining furnace position and refining Argon position, refining Argon position be mainly directly to liquid molten steel feeding alloy wire, add cold burden etc., simultaneously carry out blowing argon gas from ladle one side, stir molten steel, realize the fine setting of molten steel composition, temperature.From producing, refining Argon position rate of utilization is higher.When Argon, liquid steel temperature is up to 1550～1600 ℃ of left and right, and molten steel stirs, and slag, molten steel flash.
At present; in metallurgical refining techniques field, when refining Argon position produces, for reducing molten steel temperature drop in ladle; protect Argon platform to be subject to the safety guard of high bake, scaling loss is mainly directly to use Plate Welding simultaneously, or below steel plate, adds refractory materials to improve heat-resisting effect.
Practice shows, this safety guard exists many weak points:
1, the slag that splash goes out when Argon splashes on steel plate or refractory materials, and serious scaling loss steel plate or cause refractory materials to come off causes larger potential safety hazard to the operator of below walking or scarfing cinder.
2, it is short that shoulder guard easily produces gross distortion, life-span.
3, effect of heat insulation is poor, and Argon platform temperature is high, causes producers' poor working environment.
Utility model content
The purpose of this utility model is to provide a kind of refined molten steel bag Argon heat insulating device, and slag such as splashes down at the problem when at least solving the Argon that prior art exists.
In order to address the above problem, the utility model provides a kind of refined molten steel bag Argon heat insulating device, and its technical scheme is:
A kind of refined molten steel bag Argon heat insulating device, it comprises: device body, be plate-like, for being located at ladle top suitable for reading, and external diameter is greater than ladle bore suitable for reading; The central region of described device body has for Argon, feeding alloy wire, adds the material through hole that adds of cold burden, and described device body is spheroidal graphite cast iron material; Wherein, described device body is in the form of annular discs, and the first semicircular bodies that comprises symmetrical configuration and connect by securing gear and the second semicircular bodies, the corresponding position of described the first semicircular bodies and the second semicircular bodies is provided with semicircle gap, described in the described semicircle gap of described the first semicircular bodies and the second semicircular bodies is combined to form, adds material through hole; Described securing gear comprises first group of fastening piece, second group of fastening piece and is connected gusset, the bight outer side of described the first semicircular bodies and the second semicircular bodies is outward extended with projection, and described first group of fastening piece links together the projection in described the first semicircular bodies and the corresponding bight of the second semicircular bodies; The two ends of described connection gusset are located at respectively in described the first semicircular bodies and the second semicircular bodies, and described second group of fastening piece links together described connection gusset, the first semicircular bodies and the second semicircular bodies.
Preferably, be provided with for by the water-cooling channel of cold water in described device body, the import of described water-cooling channel and outlet are positioned at upper surface or the side of described device body.
Preferably, the import of described water-cooling channel and outlet are provided with extension water pipe.
Preferably, the upper surface of described device body is provided with suspension ring, and the position at described suspension ring place is not provided with water-cooling channel.
Preferably, it is inverted U-shaped that described suspension ring are, and the bottom of described suspension ring is embedded in described device body.
Preferably, described water-cooling channel is S-shaped distribution in described device body, and adds material through hole setting around described.
Preferably, between described the first semicircular bodies and the second semicircular bodies, be provided with gap.
Preferably, described water-cooling channel is coil pipe, and described coil pipe is 20# steel matter, and described suspension ring are Q235A material.
The utility model, by a kind of heat insulating device is provided, can be located at ladle top suitable for reading certain altitude, prevents slag splash.Further preferably, adopt forging type to make, at the inner pre-buried water-cooled coil pipe of cast iron, can be incubated molten steel well simultaneously, carry out heat insulation to Argon platform.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of the utility model preferred embodiment;
Fig. 2 is the main TV structure schematic diagram of the first semicircular bodies of the utility model preferred embodiment.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
As depicted in figs. 1 and 2, convenient and replaceable for producing, applying, the device body of this preferred embodiment comprises two portions: the first semicircular bodies 1 and the second semicircular bodies 2.The two device body being combined to form is plate-like.Although the device body shown in Fig. 1 is discoid, in other embodiments, square, regular polygon all can be realized the purpose of this utility model.In addition, in other embodiments, device body can be also an one-piece construction, but comparatively heavy, and makes difficult.
As Fig. 1, the first semicircular bodies 1 is connected by securing gear with the second semicircular bodies 2, and the external diameter of the two device body being combined to form should be greater than ladle bore suitable for reading, enough to cover ladle mouth, prevents slag splash.The central region of device body be provided with for Argon, feeding alloy wire, add cold burden add material through hole 210.Because device body is made up of the first semicircular bodies 1 and the second semicircular bodies 2, this adds material through hole 210 and is made up of the gap laying respectively in the first semicircular bodies 1 and the second semicircular bodies 2, as shown in Figure 2, the straight flange center of the first semicircular bodies 1 has semicircle gap 100.In addition, add material through hole 210 for circular port, but the utility model be confined to this, and rectangle, the material through hole that adds square, rhombus all can.
Need in addition explanation, because the first semicircular bodies 1 and the second semicircular bodies 2 are symmetrical structure, for fear of repeating, followingly only the structure of the first semicircular bodies 1 is elaborated.
In order to reduce the impact of high temperature on equipment, personnel, the first semicircular bodies 1 and the second semicircular bodies 2 are provided with for by the water-cooling channel of cold water, for example, in the first semicircular bodies 1, are provided with water-cooling channel 10.The import of water-cooling channel 10 and outlet are positioned at the side of the first semicircular bodies 1.Certainly, in other embodiments, also can be positioned at the upper surface of the first semicircular bodies 1.
For another example Fig. 1 and Fig. 2, the import of water-cooling channel 10 and outlet are provided with extends water pipe 4, extends to the first semicircular bodies 1 outside, is convenient to water conveying system and connects.
Further preferably, the first semicircular bodies 1 adopts spheroidal graphite cast iron, for example QT400-15, casting.Water-cooling channel 10 is the coil pipe of 20# steel matter, and is serpentine and is located at a side of semicircle gap 100.The water-cooling channel of the first semicircular bodies 1 and the second semicircular bodies 2 is combined, and arranges around adding material through hole 210.During fabrication, water-cooling channel 10 castings are embedded in the first semicircular bodies 1, and the mouth of pipe leans out the first semicircular bodies 1, forms and extends water pipe 4.
For the ease of movement, the first semicircular bodies 1 of device body and the upper surface of the second semicircular bodies 2 are equipped with suspension ring 3.More preferably, suspension ring 3 are Q235A material, are uniformly distributed around adding material through hole 210, and each suspension ring 3 is all inverted U-shaped, during bottom is embedded in increase strength of joint.
For simple and stable connection the first semicircular bodies 1 and the second semicircular bodies 2, securing gear comprises many group fastening pieces and is connected gusset 6.First, the bight outer side of the first semicircular bodies 1 and the second semicircular bodies 2 is outward extended with projection, and projection is provided with through hole.The for example bight of the first semicircular bodies 1 is provided with projection 11, and projection 11 is provided with through hole 110.The bolt 72 of first group of fastening piece, by the through hole of the first semicircular bodies 1 and the second semicircular bodies 2 respective protrusions, links together the two, then locks with nut 71.
Secondly, upper surface and the lower surface of the first semicircular bodies 1 and the second semicircular bodies 2 are located at respectively in the two ends that connect gusset 6, and connection gusset 6 is all set in the both sides that add material through hole 210.Connect gusset 6 and be provided with multiple through holes, with the through hole correspondence position being connected on gusset 6, the first semicircular bodies 1 and the second semicircular bodies 2 are also provided with through hole, the bolt 52 of second group of fastening piece is through three's through hole, and there is nut 51 to lock, whereby, connection gusset 6, the first semicircular bodies 1 and the second semicircular bodies 2 are linked together.More preferably, connecting gusset 6 is 16Mn material.
For fear of the impact of expanding with heat and contract with cold on the first semicircular bodies 1 and the second semicircular bodies 2, between the first semicircular bodies 1 and the respective side of the second semicircular bodies 2, there is certain gap 120.
The applying step of this preferred embodiment is roughly as follows:
Utilize the overhaul of the equipments time, be suspended on all suspension ring 3 in the first semicircular bodies 1 and the second semicircular bodies 2 by metal bracelet, this preferred embodiment is hung and is fixed on Argon platform supporting beam.When suspension, should make this preferred embodiment level, each point of tangent is solid firm; Suspension height is higher than ladle suitable distance suitable for reading, and the molten steel slag of avoiding ladle mouth to pile up touches.Then, the extension water pipe 4 of device external cooling water pipeline and water-cooling channel 10 is linked up, water-cooling channel series connection between the first semicircular bodies 1 and the second semicircular bodies 2, the first semicircular bodies 1 and the second semicircular bodies 2 are respectively inlet tube and outlet tube with two extension water pipes 4 of end, and two of the first semicircular bodies 1 and second semicircular bodies 2 another common ends are extended water pipe and link up with sebific duct or metallic hose.Finally, water flowing check test, guarantees each tie point ne-leakage water, can be applicable to produce, Argon,, feeding alloy wire, add cold burden and all operate by adding material through hole 210.In application process, this preferred embodiment can effectively be incubated molten steel in ladle, carries out heat insulation to Argon platform.
Theoretical analysis and test show, in the time of refined molten steel bag Argon, the beneficial effects of the utility model are:
Be covered in ladle top, can effectively reduce molten steel temperature drop, be also provided with water-cooling channel simultaneously, can alleviate Argon platform and be subject to high bake, improve the security and stability of platform crossbeam; Because being uniformly distributed suspension ring, installation, easy to adjust; Have good oxidation-resistance, intensity, unit elongation, thermotolerance, the online life-span is long, safety.
As known by the technical knowledge, the utility model can be realized by other the embodiment that does not depart from its spirit or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, and is not only.Allly within the scope of the utility model or in the change being equal in scope of the present utility model, be all included in the utility model.
Claims (8)
1. a refined molten steel bag Argon heat insulating device, is characterized in that, comprising:
Device body, is plate-like, and for being located at ladle top suitable for reading, and external diameter is greater than ladle bore suitable for reading; The central region of described device body has for Argon, feeding alloy wire, adds the material through hole that adds of cold burden, and described device body is spheroidal graphite cast iron material;
Wherein, described device body is in the form of annular discs, and the first semicircular bodies that comprises symmetrical configuration and connect by securing gear and the second semicircular bodies, the corresponding position of described the first semicircular bodies and the second semicircular bodies is provided with semicircle gap, described in the described semicircle gap of described the first semicircular bodies and the second semicircular bodies is combined to form, adds material through hole;
Described securing gear comprises first group of fastening piece, second group of fastening piece and is connected gusset, the bight outer side of described the first semicircular bodies and the second semicircular bodies is outward extended with projection, and described first group of fastening piece links together the projection in described the first semicircular bodies and the corresponding bight of the second semicircular bodies;
The two ends of described connection gusset are located at respectively in described the first semicircular bodies and the second semicircular bodies, and described second group of fastening piece links together described connection gusset, the first semicircular bodies and the second semicircular bodies.
2. refined molten steel bag Argon heat insulating device according to claim 1, is characterized in that, is provided with for by the water-cooling channel of cold water in described device body, and the import of described water-cooling channel and outlet are positioned at upper surface or the side of described device body.
3. refined molten steel bag Argon heat insulating device according to claim 2, is characterized in that, the import of described water-cooling channel and outlet are provided with extension water pipe.
4. refined molten steel bag Argon heat insulating device according to claim 2, is characterized in that, the upper surface of described device body is provided with suspension ring, and the position at described suspension ring place is not provided with water-cooling channel.
5. refined molten steel bag Argon heat insulating device according to claim 4, is characterized in that, it is inverted U-shaped that described suspension ring are, and the bottom of described suspension ring is embedded in described device body.
6. refined molten steel bag Argon heat insulating device according to claim 2, is characterized in that, described water-cooling channel is S-shaped distribution in described device body, and adds material through hole setting around described.
7. refined molten steel bag Argon heat insulating device according to claim 1, is characterized in that, between described the first semicircular bodies and the second semicircular bodies, is provided with gap.
8. refined molten steel bag Argon heat insulating device according to claim 4, is characterized in that, described water-cooling channel is coil pipe, and described coil pipe is 20# steel matter, and described suspension ring are Q235A material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320637491.1U CN203613216U (en) | 2013-10-15 | 2013-10-15 | Thermal insulation device for argon blowing of refined steel ladle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320637491.1U CN203613216U (en) | 2013-10-15 | 2013-10-15 | Thermal insulation device for argon blowing of refined steel ladle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203613216U true CN203613216U (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320637491.1U Withdrawn - After Issue CN203613216U (en) | 2013-10-15 | 2013-10-15 | Thermal insulation device for argon blowing of refined steel ladle |
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| CN (1) | CN203613216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103555888A (en) * | 2013-10-15 | 2014-02-05 | 莱芜钢铁集团有限公司 | Refined steel ladle argon blowing thermal-insulation device |
-
2013
- 2013-10-15 CN CN201320637491.1U patent/CN203613216U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103555888A (en) * | 2013-10-15 | 2014-02-05 | 莱芜钢铁集团有限公司 | Refined steel ladle argon blowing thermal-insulation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140528 Effective date of abandoning: 20150819 |
|
| RGAV | Abandon patent right to avoid regrant |