CN207515533U - A kind of compound magnesia-spinel brick of thermal insulation - Google Patents
A kind of compound magnesia-spinel brick of thermal insulation Download PDFInfo
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- CN207515533U CN207515533U CN201721529264.1U CN201721529264U CN207515533U CN 207515533 U CN207515533 U CN 207515533U CN 201721529264 U CN201721529264 U CN 201721529264U CN 207515533 U CN207515533 U CN 207515533U
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- insulating layer
- working lining
- thermal insulation
- groove
- layer
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Abstract
The utility model discloses a kind of compound magnesia-spinel brick of thermal insulation, including working lining, insulating layer, thermal insulation layer；Working lining is to be fixed at upper position with steel contacts layer, working lining, and the bottom entire body setting of working lining is fluted, and groove is recessed arc, groove the bottom of working lining equidistantly, continuous setting form S-shaped；The lower part of working lining is fixedly installed insulating layer, and the top entire body of insulating layer is fixedly installed protrusion, and protrusion is arc-shaped, and protrusion is equidistant in the upper plane of insulating layer, continuously setting forms reversed S-shaped.This compound magnesia-spinel brick of thermal insulation, greatly reduces the heat conductivility of magnesia spinel matter arch brick, while reduce the loss of molten steel heat in refining process, has saved energy consumption；The integral strength of composite brick is enhanced, and then improves the service life of magnesia-spinel brick.
Description
Technical field
The utility model belongs to the adiabatic composite refractory field of high temperature, and in particular to a kind of compound magnesia spinel of thermal insulation
Brick.
Background technology
RH refining furnaces are a kind of steel secondary refining technological equipments for being used to produce high-quality steel.Entirely molten steel metallurgical reaction is
Building what is carried out in the vacuum tank for having refractory lining.The lower part of vacuum tank is two dip pipes with refractory lining, and top is equipped with hot bending
Pipe.RH refining furnaces are in refining process, and alloy does not react substantially with clinker, and alloy is directly added among molten steel, and recovery rate is high；Steel
Water energy Quick uniform mixes；Alloying component can be controlled in it is narrow within the scope of, gas content is low, and field trash is few, and molten steel is pure
Degree is high.
In the prior art, as environmental protection policy is more and more stringenter, refractory material Trend of Chrome-free, it is pollution-free will be refractory material row
The trend of industry development；Magnesia-spinel brick as magnesite-chrome brick substitute due to Chrome-free, free from environmental pollution, unburned energy saving and anti-erosion
Performance is just widely being used by force by RH refining furnaces.But compared with magnesite-chrome brick, magnesia-spinel brick thermal conductivity factor is high, and liquid steel temperature is lost in
Soon, it needs to carry out temperature-compensating in refining process, consumes the energy, while the easy expanded by heating of housing being in contact with it, lead to steel
Malformation is serious, restricts its development always；Drawbacks described above of the inventor based on magnesia-spinel brick in the prior art has developed, and one
The adiabatic compound magnesia-spinel brick of kind, can well solve problems of the prior art.
Utility model content
In order to solve the above-mentioned technical problem the utility model, provides a kind of compound magnesia-spinel brick of thermal insulation, structure design
It is scientific and reasonable, simple in structure, use that adiabatic, heat-insulating property is high；It can solve magnesia-spinel brick thermal conductivity factor height, liquid steel temperature stream
It loses soon, needs to carry out temperature-compensating in refining process, consume the energy, while the easy expanded by heating of housing being in contact with it, cause
The problem of steel construction deformation is serious.
Technical solution is used by the utility model：A kind of compound magnesia-spinel brick of thermal insulation, including working lining, heat preservation
Layer, thermal insulation layer；Working lining is to be fixed at upper position, the bottom entire body setting of working lining with steel contacts layer, working lining
Fluted, groove is recessed arc, groove the bottom of working lining equidistantly, continuous setting form S-shaped；The lower part of working lining
Insulating layer is fixedly installed, the top entire body of insulating layer is fixedly installed protrusion, and protrusion is arc-shaped, and protrusion is in the upper of insulating layer
Equidistant on facial planes, continuous setting forms reversed S-shaped；The bottom face of insulating layer, entire body are fixedly installed recessed swallow
Stern notch, dovetail groove is in the bottom surface spaced set of insulating layer；Thermal insulation layer is fixed at the lower part of insulating layer, the top of thermal insulation layer
Entire body is provided with dovetail convex block, and dovetail convex block is equidistantly fixedly installed on thermal insulation layer；Working lining, insulating layer, thermal insulation layer are formed
Whole arch brick.
The bottom of the working lining equidistantly, continuous setting form the arc groove of S-shaped, and in the upper plane of insulating layer
Equidistantly, the arc convex that continuous setting forms reversed S-shaped fits closely connection.
The dovetail groove of the bottom face setting of the insulating layer, company is fitted closely with the top entire body dovetail convex block of thermal insulation layer
It connects.
The right-angle side of the dovetail groove and the angle of bevel edge are 60 DEG C, and the outer turning of each angle, radius 3mm is inside turned
Angular radius is the round-corner transition of 5mm.
The working lining is the magnesia-spinel brick by mechanical pressing, and insulating layer is High-Alumina hollow ball brick, and thermal insulation layer is
Light weeight alumina brick.
The forming process of this compound magnesia-spinel brick of thermal insulation is：The surface of the S-shaped groove on working lining is coated first
One layer of fire resisting high-temp glue, while the surface of the reversed S-shaped protrusion in insulating layer applies last layer fire resisting high-temp glue, by the S of working lining
The groove of shape is directed at fitting with the reversed S-shaped protrusion of insulating layer and is fixedly connected, and is formed as one；Then by the dovetail groove of insulating layer
It is upper smearing one layer of fire resisting high-temp glue, while on the dovetail convex block of thermal insulation layer smear one layer of fire resisting high-temp glue, and by thermal insulation layer with
Insulating layer alignment fitting is fixedly connected；Working lining, insulating layer and thermal insulation layer is made to form the magnesia spinel arch brick of an entirety；With
Upper process is exactly the forming process of this compound magnesia-spinel brick of thermal insulation.
The working lining, insulating layer and thermal insulation layer are formed by improving its single material, by three kinds of different heat conduction systems
The lower material of number is combined into one by rational structure, so as to achieve the purpose that reduce heat transfer efficiency.
The bottom entire body setting of the working lining is fluted, and groove is recessed arc, and groove is in bottom of working lining etc.
Spacing, continuous setting form S-shaped；The lower part of working lining is fixedly installed insulating layer, and the top entire body of insulating layer is fixedly installed
Protrusion, protrusion are arc-shaped, and protrusion is equidistant in the upper plane of insulating layer, continuously setting forms reversed S-shaped；It sets in this way
The main purpose put is in order to which the reversed S-shaped set by the S-shaped groove and insulating layer top that are arranged on working lining bottom is convex
It rises, increases working lining and insulating layer contact area, improve the intensity that working lining is combined with insulating layer, so as to improve working lining with protecting
The mutual overall performance of warm layer extends working lining service life.
The S-shaped groove of the bottom entire body setting of the working lining, the top entire body fixed setting S-shaped protrusion of insulating layer；This
The main purpose of sample setting be in order to, on the one hand, the contact area of increase working lining and insulating layer improves working lining and insulating layer
Bond strength；On the other hand, reduce under high temperature environment, working lining to the thermal stress of insulating layer, improve working lining with
The fastness that insulating layer bonds；So as to improve and the antiscour of working lining and anti-erosion effect, extend working lining and use longevity
Life.
The bottom face of the insulating layer, entire body are fixedly installed recessed dovetail groove, and dovetail groove is in the bottom surface of insulating layer
Spaced set；Thermal insulation layer is fixed at the lower part of insulating layer, the top entire body dovetail convex block of thermal insulation layer, dovetail convex block every
It is equidistantly fixedly installed on thermosphere；The main purpose set in this way is to pass through matching for recessed dovetail groove and dovetail convex block
It closes, close connection, improves the fastness of the bonding of insulating layer and thermal insulation layer, improve the bond strength of insulating layer and thermal insulation layer.
The right-angle side of the wherein dovetail groove and the angle of bevel edge are 60 DEG C, and the main purpose set in this way is to increase
Skin-friction force greatly between dovetail groove and dovetail convex block increases the being firmly bonded property of insulating layer and thermal insulation layer；But it is not
The angle of the right-angle side and bevel edge of dovetail groove and dovetail convex block, is the bigger the better, and angle is bigger, to insulating layer and thermal insulation layer clamping
During combination, bad clamping；Angle is too small, and the skin-friction force between dovetail groove and dovetail convex block is inadequate, reduce insulating layer and
The being firmly bonded property of thermal insulation layer；Therefore it is 60 DEG C by the angle of the right-angle side and bevel edge of dovetail groove and dovetail convex block, is by nothing
Experiment for several times, and practical worst hot case environment is combined, and the best angle parameter selected.
The angle of the right-angle side and bevel edge of the dovetail groove and dovetail convex block is 60 DEG C, the outer turning of each angle, radius
For 3mm, interior corner radius is the round-corner transition of 5mm；The main purpose for being provided with round-corner transition be in order to, prevent insulating layer and
The generation of high temperature thermal stress between thermal insulation layer improves the compactness that insulating layer and thermal insulation layer combine, and improves the intensity of its combination.
The beneficial effects of the utility model：The technical program provides a kind of compound magnesia-spinel brick of thermal insulation, structure design
It is scientific and reasonable, simple in structure, use that adiabatic, heat-insulating property is high；It can solve magnesia-spinel brick thermal conductivity factor height, liquid steel temperature stream
It loses soon, needs to carry out temperature-compensating in refining process, consume the energy, while the easy expanded by heating of housing being in contact with it, cause
The problem of steel construction deformation is serious；The heat conductivility of magnesia spinel matter arch brick is greatly reduced, while reduces refining process
The loss of middle molten steel heat, has saved energy consumption；The integral strength of composite brick is enhanced, and then improves the use of magnesia-spinel brick
Service life.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of the utility model embodiment 1；
Fig. 3 is the structure diagram of the utility model embodiment 2；
It is marked in figure：1st, working lining, 2, insulating layer, 3, thermal insulation layer, 4, groove, 5, protrusion, 6, dovetail groove, 7, dovetail it is convex
Block, 8, right-angle side, 9, bevel edge.
Specific embodiment
Specific embodiment of the present utility model is described in further detail below in conjunction with attached drawing.
As shown in the figure, a kind of compound magnesia-spinel brick of thermal insulation, including working lining 1, insulating layer 2, thermal insulation layer 3；Working lining 1 is
With steel contacts layer, working lining 1 is fixed at upper position, and the bottom entire body setting fluted 4 of working lining 1, groove 4 is recessed
The arc entered, groove 4 the bottom of working lining 1 equidistantly, continuous setting form S-shaped；The lower part of working lining 1 is fixedly installed guarantor
Warm layer 2, the top entire body of insulating layer 2 are fixedly installed protrusion 5, and protrusion 5 is arc-shaped, and protrusion 5 is in the upper plane of insulating layer 2
Upper equidistant, continuous setting forms reversed S-shaped；The bottom face of insulating layer 2, entire body are fixedly installed recessed dovetail groove 6,
Dovetail groove 6 is in the bottom surface spaced set of insulating layer 2；Thermal insulation layer 3 is fixed at the lower part of insulating layer 2, the top of thermal insulation layer 3
Entire body is provided with dovetail convex block 7, and dovetail convex block 7 is equidistantly fixedly installed on thermal insulation layer 3；Working lining 1, insulating layer 2, thermal insulation layer
3 form whole arch brick.
The bottom of the working lining 1 is equidistant, continuously setting forms the arc groove 4 of S-shaped, the upper flat with insulating layer 2
The arc convex 5 that equidistant on face, continuous setting forms reversed S-shaped fits closely connection.
The dovetail groove 6 of the bottom face setting of the insulating layer 2 is closely pasted with the top entire body dovetail convex block 7 of thermal insulation layer 3
Close connection.
The right-angle side 8 of the groove 4 and the angle of bevel edge 9 are 60 DEG C, and the outer turning of each angle, radius 3mm is inside turned
Angular radius is the round-corner transition of 5mm.
The working lining 1 is by the magnesia-spinel brick of mechanical pressing, and insulating layer 2 is High-Alumina hollow ball brick, thermal insulation layer 3
For light weeight alumina brick.
The forming process of this compound magnesia-spinel brick of thermal insulation is：The surface of the S-shaped groove 4 on working lining 1 is applied first
Last layer fire resisting high-temp glue, while the surface of the reversed S-shaped protrusion 5 in insulating layer 2 applies last layer fire resisting high-temp glue, by working lining
The groove 4 of 1 S-shaped is directed at fitting with the reversed S-shaped of insulating layer 2 protrusion 5 and is fixedly connected, and is formed as one；Then by insulating layer 2
Dovetail groove 6 on smear one layer of fire resisting high-temp glue, while on the dovetail convex block 7 of thermal insulation layer 3 smear one layer of fire resisting high-temp glue, and
Thermal insulation layer 3 is directed at fitting with insulating layer 2 to be fixedly connected；Working lining 1, insulating layer 2 and thermal insulation layer 3 is made to form the magnesium of an entirety
Spinelle arch brick；Above procedure is exactly the forming process of this compound magnesia-spinel brick of thermal insulation.
Embodiment one,
The bottom entire body setting fluted 4 of working lining 1, groove 4 is recessed V-arrangement, and groove 4 is in bottom of working lining 1 etc.
Spacing, continuous setting form recessed tooth form；The lower part of working lining 1 is fixedly installed insulating layer 2, the top entire body of insulating layer 2
Protrusion 5 is fixedly installed, protrusion 5 is V-arrangement, and raised 5 equidistant in the upper plane of insulating layer 2, continuous settings, which are formed, protrudes
Tooth form.
Embodiment two,
The bottom entire body setting fluted 4 of working lining 1, groove 4 is recessed rectangle, and groove 4 is in the bottom of working lining 1
Equidistantly, continuous setting；The lower part of working lining 1 is fixedly installed insulating layer 2, and the top entire body of insulating layer 2 is fixedly installed convex
Play 5, protrusion 5 is rectangle, protrusion 5 in the upper plane of insulating layer 2 equidistantly, continuous setting.
Claims (7)
1. a kind of compound magnesia-spinel brick of thermal insulation, including working lining, insulating layer, thermal insulation layer；It is characterized in that：Working lining is and steel
Water contact layer, working lining are fixed at upper position, and the bottom entire body setting of working lining is fluted, and groove is recessed arc
Shape, groove the bottom of working lining equidistantly, continuous setting form S-shaped；The lower part of working lining is fixedly installed insulating layer, heat preservation
The top entire body of layer is fixedly installed protrusion, and protrusion is arc-shaped, and protrusion is equidistant in the upper plane of insulating layer, continuously sets
It puts to form reversed S-shaped；The bottom face of insulating layer, entire body are fixedly installed recessed dovetail groove, and dovetail groove is in insulating layer
Bottom surface spaced set；Thermal insulation layer is fixed at the lower part of insulating layer, and the top entire body of thermal insulation layer is provided with dovetail convex block, swallow
Tail convex block is equidistantly fixedly installed on thermal insulation layer；Working lining, insulating layer, thermal insulation layer form whole arch brick.
2. a kind of compound magnesia-spinel brick of thermal insulation according to claim 1, it is characterised in that：Between bottom of working lining etc.
The arc groove of S-shaped is formed away from, continuous setting, in the upper plane of insulating layer equidistantly, continuous setting form reversed S-shaped
Arc convex fits closely connection.
3. a kind of compound magnesia-spinel brick of thermal insulation according to claim 1, it is characterised in that：The bottom face of insulating layer is set
The dovetail groove put is fitted closely with the top entire body dovetail convex block of thermal insulation layer and is connect.
4. a kind of compound magnesia-spinel brick of thermal insulation according to claim 1, it is characterised in that：The right-angle side of dovetail groove with tiltedly
The angle on side is 60 DEG C, the outer turning of each angle, radius 3mm, and interior corner radius is the round-corner transition of 5mm.
5. a kind of compound magnesia-spinel brick of thermal insulation according to claim 1, it is characterised in that：Working lining is is pressed by machine
The magnesia-spinel brick of type, insulating layer are High-Alumina hollow ball brick, and thermal insulation layer is light weeight alumina brick.
6. a kind of compound magnesia-spinel brick of thermal insulation according to claim 1, it is characterised in that：The bottom entire body of working lining is set
Be equipped with groove, groove is recessed V-arrangement, groove the bottom of working lining equidistantly, continuous setting form recessed tooth form；Work
The lower part of layer is fixedly installed insulating layer, and the top entire body of insulating layer is fixedly installed protrusion, and protrusion is V-arrangement, and protrusion is being kept the temperature
The tooth form of formation protrusion equidistantly, is continuously set in the upper plane of layer.
7. a kind of compound magnesia-spinel brick of thermal insulation according to claim 1, it is characterised in that：The bottom entire body of working lining is set
Groove is equipped with, groove is recessed rectangle, and groove equidistantly, is continuously set in the bottom of working lining；The lower part of working lining is consolidated
Surely insulating layer is provided with, the top entire body of insulating layer is fixedly installed protrusion, and protrusion is rectangle, and protrusion is on the top of insulating layer
It equidistantly, is continuously set in plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721529264.1U CN207515533U (en) | 2017-11-16 | 2017-11-16 | A kind of compound magnesia-spinel brick of thermal insulation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721529264.1U CN207515533U (en) | 2017-11-16 | 2017-11-16 | A kind of compound magnesia-spinel brick of thermal insulation |
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| Publication Number | Publication Date |
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| CN207515533U true CN207515533U (en) | 2018-06-19 |
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| CN201721529264.1U Expired - Fee Related CN207515533U (en) | 2017-11-16 | 2017-11-16 | A kind of compound magnesia-spinel brick of thermal insulation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664434A (en) * | 2017-11-16 | 2018-02-06 | 洛阳利尔耐火材料有限公司 | A kind of adiabatic compound magnesia-spinel brick |
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2017
- 2017-11-16 CN CN201721529264.1U patent/CN207515533U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664434A (en) * | 2017-11-16 | 2018-02-06 | 洛阳利尔耐火材料有限公司 | A kind of adiabatic compound magnesia-spinel brick |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180619 Termination date: 20201116 |