CN206854636U - A kind of runner brick of resistance to wettability - Google Patents
A kind of runner brick of resistance to wettability Download PDFInfo
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- CN206854636U CN206854636U CN201720819166.5U CN201720819166U CN206854636U CN 206854636 U CN206854636 U CN 206854636U CN 201720819166 U CN201720819166 U CN 201720819166U CN 206854636 U CN206854636 U CN 206854636U
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- wettability
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Abstract
The utility model discloses a kind of runner brick of resistance to wettability, brick body is disposed with fireproof magnesia alumina spinel layer, magnesium aluminum spinel pouring layer, magnesium carbonaceous refractory casting layer, unshape refractory layer and magnesium carbonaceous thermal insulation layer outside by built-in, and the medial surface of fireproof magnesia alumina spinel layer is provided with silica sintered membrane.It has multiple layer refractory layer, effectively raises resistance to wettability and durable usability, crack performance caused by greatly reducing thermal stress, delays service life.
Description
Technical field
Technical field of refractory materials is the utility model is related to, more particularly, to a kind of runner brick of resistance to wettability.
Background technology
Runner brick is to build the hollow refractory brick that steel splitting brick and ingot mould are connected in the groove of ingot casting bottom plate, is commonly called as soup road
Brick.Runner brick is generally the hollow clay brick of cuboid for having plurality of specifications.To reduce the resistance during molten steel flow and preventing
Leak-stopping steel, it is desired to which runner brick endoporus is smooth, neat appearance, and seam is tight.With greatly developing for refractory technology, high alumina stream
Steel brick and the gradually expanded application of mullite runner brick, however, being found in actual application, current runner brick heat resistanceheat resistant
Shock stability is good, still, generally existing corrosion resistance, the problem of spalling resistance and resistance to wettability are poor.
Utility model content
In view of the shortcomings of the prior art, technical problem to be solved is to provide a kind of stream of resistance to wettability steel to the utility model
Brick, it has multiple layer refractory layer, effectively raises resistance to wettability and durable usability, greatly reduces thermal stress and causes
Crack performance, delay service life.
The utility model is to be addressed above-mentioned technical problem by the following technical programs.
A kind of runner brick of resistance to wettability, brick body are disposed with fireproof magnesia alumina spinel layer, magnalium point crystalline substance outside by built-in
Stone pouring layer, magnesium carbonaceous refractory casting layer, unshape refractory layer and magnesium carbonaceous thermal insulation layer, fireproof magnesia alumina spinel layer it is interior
Side is provided with silica sintered membrane.
Preferably, the gas porosity of fireproof magnesia alumina spinel layer is magnesium aluminum spinel pouring layer gas porosity
1.5 to 2 times.
Preferably, the thickness ratio of magnesium aluminum spinel pouring layer and fireproof magnesia alumina spinel layer is 1:1.5 to 1:2.
Preferably, the gross thickness of fireproof magnesia alumina spinel layer and magnesium aluminum spinel pouring layer is magnesium carbonaceous refractory casting
1.2 to 2.5 times of the gross thickness of layer, unshape refractory layer and magnesium carbonaceous thermal insulation layer.
Preferably, the thermal conductivity of fireproof magnesia alumina spinel layer is less than the thermal conductivity of magnesium aluminum spinel pouring layer.
Preferably, the thickness of silica sintered membrane is not less than 1mm.
Preferably, the gross thickness of fireproof magnesia alumina spinel layer and magnesium aluminum spinel pouring layer is 350mm to 550mm.
Preferably, the gross thickness of magnesium carbonaceous refractory casting layer, unshape refractory layer and magnesium carbonaceous thermal insulation layer is
500mm to 800mm.
The beneficial effects of the utility model：
1. being made up of multiple layer refractory layer, traditional brickwork construction is substituted, effectively prevents steel caused by bleed-out phenomenon
Shell burning damage accident, multiple layer refractory structure can effectively slow down the transmission of thermal stress, reduce crack performance, improve durable use
Degree, delays service life.
Make fire-resistant layer structure stable 2. setting up unshape refractory layer, effectively slow down thermal stress transmission, reduce cracking
Produce.
3. sinter to form the silica sintered membrane that thickness is not less than 1mm by oxidation and sinter integral process, the oxidation of this layer
Silicon sintered membrane substantially increases the resistance to wettability and corrosion resistance of brick body, improves durable usability, fire resisting is greatly reduced
The consumption of material, reduce production cost.
Brief description of the drawings
It is intended to be easy to describe preferred embodiment in conjunction with the following drawings, does not form the limit to scope of protection of the utility model
System.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is Fig. 1 cross section structure schematic diagram.
In figure：1- brick bodies, 2- magnesium aluminum spinel pouring layers, 3- magnesium carbonaceous refractory casting layers, 4- unshape refractories
Layer, 5- magnesium carbonaceous thermal insulation layers, 6- silica sintered membranes, 7- fireproof magnesia alumina spinel layers.
Embodiment
In order to facilitate the utility model is understood, below in conjunction with the accompanying drawings in the preferred embodiment pair of the present utility model that provides
The utility model is described in detail.
A kind of runner brick of resistance to wettability of the utility model as depicted in figs. 1 and 2, brick body 1 are set gradually outside by built-in
There are fireproof magnesia alumina spinel layer 7, magnesium aluminum spinel pouring layer 2, magnesium carbonaceous refractory casting layer 3, unshape refractory layer 4 and magnesium
Carbonaceous thermal insulation layer 5, the medial surface of fireproof magnesia alumina spinel layer 7 are provided with silica sintered membrane 6, and the thickness of silica sintered membrane 6 is most
It is not less than 1mm well, sinters to form the silica sintered membrane that thickness is not less than 1mm by oxidation and sinter integral process, this layer of oxygen
SiClx sintered membrane substantially increases the resistance to wettability and corrosion resistance of brick body 1, so as to improve durable usability, greatly drops
The low consumption of refractory material, increases economic efficiency for enterprise.The gas porosity of fireproof magnesia alumina spinel layer 7 is arranged to magnalium
1.5 to 2 times of the gas porosity of spinel pouring layer 2, resistance to wettability can be effectively improved, so as to greatly reducing crystallization
Caused crack performance.Take into account and consider refractory material cost and high temperature mechanical strength factor, magnesium aluminum spinel pouring layer 2 and magnalium
The thickness ratio of spinelle refractory layer 7 is preferably arranged to 1:1.5 to 1:2, likewise it is preferred that fireproof magnesia alumina spinel layer 7 and magnalium point
The gross thickness of spar pouring layer 2 is the total thickness of magnesium carbonaceous refractory casting layer 3, unshape refractory layer 4 and magnesium carbonaceous thermal insulation layer 5
1.2 to 2.5 times of degree, wherein, the gross thickness of fireproof magnesia alumina spinel layer 7 and magnesium aluminum spinel pouring layer 2 may be selected to be 350mm
To 550mm, the gross thickness of magnesium carbonaceous refractory casting layer 3, unshape refractory layer 4 and magnesium carbonaceous thermal insulation layer 5 may be selected to be
500mm to 800mm.As a kind of embodiment, the thermal conductivity of magnesium aluminum spinel pouring layer 2 is selected to be less than fireproof magnesia alumina spinel
The thermal conductivity of layer 7, can increase substantially refractory heat-insulating effect, the thermal contraction of magnesium aluminum spinel pouring layer 2 is less than magnesium aluminate spinel
Flame retardant coating 7, crack performance caused by greatly reducing thermal stress occur.
Some technical terms are intended merely to facilitate description used in the utility model, do not form to the utility model
Limitation, the utility model is not limited to above-described preferable embodiment, based on those skilled in the art institute
The known technology or use that can be known are capable of the various modifications of equivalence replacement and the embodiment of change in the prior art,
It is every to be based on spirit or technical concept of the present utility model, it should be included within the scope of protection of the utility model.
Claims (8)
1. a kind of runner brick of resistance to wettability, it is characterized in that：Brick body (1) is disposed with fireproof magnesia alumina spinel layer outside by built-in
(7), magnesium aluminum spinel pouring layer (2), magnesium carbonaceous refractory casting layer (3), unshape refractory layer (4) and magnesium carbonaceous thermal insulation layer
(5), the medial surface of fireproof magnesia alumina spinel layer (7) is provided with silica sintered membrane (6).
2. the runner brick of resistance to wettability according to claim 1, it is characterized in that：The gas orifice of fireproof magnesia alumina spinel layer (7)
Gap rate is 1.5 to 2 times of magnesium aluminum spinel pouring layer (2) gas porosity.
3. the runner brick of resistance to wettability according to claim 1, it is characterized in that：Magnesium aluminum spinel pouring layer (2) and magnalium point
The thickness ratio of spar flame retardant coating (7) is 1:1.5 to 1:2.
4. the runner brick of resistance to wettability according to claim 1, it is characterized in that：Fireproof magnesia alumina spinel layer (7) and magnalium point
The gross thickness of spar pouring layer (2) is magnesium carbonaceous refractory casting layer (3), unshape refractory layer (4) and magnesium carbonaceous thermal insulation layer
(5) 1.2 to 2.5 times of gross thickness.
5. the runner brick of resistance to wettability according to claim 1, it is characterized in that：The thermal conductivity of magnesium aluminum spinel pouring layer (2)
Less than the thermal conductivity of fireproof magnesia alumina spinel layer (7).
6. the runner brick of resistance to wettability according to claim 1, it is characterized in that：The thickness of silica sintered membrane (6) is not less than
1mm。
7. the runner brick of resistance to wettability according to claim 1, it is characterized in that：Fireproof magnesia alumina spinel layer (7) and magnalium point
The gross thickness of spar pouring layer (2) is 350mm to 550mm.
8. the runner brick of resistance to wettability according to claim 1, it is characterized in that：It is magnesium carbonaceous refractory casting layer (3), unsetting resistance to
The gross thickness of fiery material layer (4) and magnesium carbonaceous thermal insulation layer (5) is 500mm to 800mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720819166.5U CN206854636U (en) | 2017-07-07 | 2017-07-07 | A kind of runner brick of resistance to wettability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720819166.5U CN206854636U (en) | 2017-07-07 | 2017-07-07 | A kind of runner brick of resistance to wettability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206854636U true CN206854636U (en) | 2018-01-09 |
Family
ID=60832198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720819166.5U Active CN206854636U (en) | 2017-07-07 | 2017-07-07 | A kind of runner brick of resistance to wettability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206854636U (en) |
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2017
- 2017-07-07 CN CN201720819166.5U patent/CN206854636U/en active Active
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