CN107664434A - A kind of adiabatic compound magnesia-spinel brick - Google Patents
A kind of adiabatic compound magnesia-spinel brick Download PDFInfo
- Publication number
- CN107664434A CN107664434A CN201711135054.9A CN201711135054A CN107664434A CN 107664434 A CN107664434 A CN 107664434A CN 201711135054 A CN201711135054 A CN 201711135054A CN 107664434 A CN107664434 A CN 107664434A
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- insulation layer
- heat
- working lining
- projection
- groove
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
- F27D1/06—Composite bricks or blocks, e.g. panels, modules
- F27D1/063—Individual composite bricks or blocks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a kind of adiabatic compound magnesia-spinel brick, including working lining, heat-insulation layer, thermal insulation layer；Working lining is to be fixedly installed on upper position with steel contacts layer, working lining, and the bottom entire body of working lining sets fluted, and groove be recessed arc, groove the bottom of working lining equidistantly, continuous setting form S-shaped；The bottom of working lining is fixedly installed heat-insulation layer, and the top entire body of heat-insulation layer is fixedly installed projection, and projection is circular arc, and projection is equidistant in the upper plane of heat-insulation layer, continuous set forms reverse S-shaped.This compound magnesia-spinel brick of thermal insulation, greatly reduces the heat conductivility of magnesia spinel matter arch brick, while reduces the loss of molten steel heat in refining process, has saved energy consumption；The bulk strength of composite brick is enhanced, and then improves the service life of magnesia-spinel brick.
Description
Technical field
The invention belongs to high temperature with adiabatic composite refractory field, and in particular to a kind of adiabatic compound magnesia-spinel 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
Have what is carried out in the vacuum tank of refractory lining building.The bottom 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 is not reacted with clinker substantially, 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 stricter, 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-conservation 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
It hurry up, need 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 steel
Malformation is serious, restricts its development always；Drawbacks described above of the inventor based on magnesia-spinel brick in the prior art have developed, and one
The adiabatic compound magnesia-spinel brick of kind, can solve problems of the prior art well.
The content of the invention
The present invention is in order to solve the above-mentioned technical problem, there is provided a kind of adiabatic compound magnesia-spinel brick, its scientific structure design
Rationally, it is simple in construction, use that adiabatic, heat-insulating property is high；Magnesia-spinel brick thermal conductivity factor height is can solve the problem that, liquid steel temperature is lost in
It hurry up, need 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 steel
The problem of malformation is serious.
The technical solution adopted in the present invention is：A kind of adiabatic compound magnesia-spinel brick, including working lining, heat-insulation layer, every
Thermosphere；Working lining is to be fixedly installed on upper position with steel contacts layer, working lining, and the bottom entire body of working lining is provided with recessed
Groove, groove are recessed arc, groove the bottom of working lining equidistantly, continuous set form S-shaped；The bottom of working lining is fixed
Heat-insulation layer is provided with, the top entire body of heat-insulation layer is fixedly installed projection, and projection is circular arc, the raised upper flat in heat-insulation layer
Equidistant on face, continuous set forms reverse S-shaped；The bottom face of heat-insulation layer, entire body are fixedly installed recessed dovetail groove,
Bottom surface spaced set of the dovetail groove in heat-insulation layer；Thermal insulation layer is fixedly installed on the bottom of heat-insulation layer, the top entire body of thermal insulation layer
Dovetail projection is provided with, dovetail projection is equidistantly fixedly installed on thermal insulation layer；Working lining, heat-insulation layer, thermal insulation layer form entirety
Arch brick.
The bottom of the working lining equidistantly, it is continuous the arc groove for forming S-shaped is set, and in the upper plane of heat-insulation layer
Equidistantly, it is continuous to set the arc convex for forming reverse S-shaped to be brought into close contact connection.
The dovetail groove that the bottom face of the heat-insulation layer is set, company is brought into close contact with the top entire body dovetail projection of thermal insulation layer
Connect.
The right-angle side of the dovetail groove and the angle of hypotenuse are 60 DEG C, the outer turning of each angle, radius 3mm, are inside turned
Angular radius is 5mm round-corner transition.
The working lining is the magnesia-spinel brick by mechanical pressing, and heat-insulation 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 last layer fire resisting high-temp glue is applied on the raised surface of the reverse S-shaped of heat-insulation layer, by the S of working lining
The groove of shape is directed at fitting with the reverse S-shaped projection of heat-insulation layer and is fixedly connected, and formation is integrated；Then by the dovetail groove of heat-insulation layer
It is upper smearing one layer of fire resisting high-temp glue, while on the dovetail projection of thermal insulation layer smear one layer of fire resisting high-temp glue, and by thermal insulation layer with
Heat-insulation layer alignment fitting is fixedly connected；Working lining, heat-insulation layer and thermal insulation layer is set 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, heat-insulation layer and thermal insulation layer, it is 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 reach the purpose for reducing 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 set form S-shaped；The bottom of working lining is fixedly installed heat-insulation layer, and the top entire body of heat-insulation layer is fixedly installed
Projection, projection is circular arc, and projection is equidistant in the upper plane of heat-insulation layer, continuous set forms reverse S-shaped；So set
The main purpose put is in order to which the reverse S-shaped set by the S-shaped groove and heat-insulation layer top that are arranged on working lining bottom is convex
Rise, increase working lining and heat-insulation layer contact area, improve the intensity that working lining is combined with heat-insulation layer, so as to improve working lining with protecting
The mutual overall performance of warm layer, extend working lining service life.
The S-shaped groove that the bottom entire body of the working lining is set, the top entire body fixed setting S-shaped of heat-insulation layer are raised；This
The main purpose that sample is set be in order to, on the one hand, the contact area of increase working lining and heat-insulation layer, improve working lining and heat-insulation layer
Bond strength；On the other hand, reduce in high temperature environments, working lining to the thermal stress of heat-insulation layer, improve working lining with
The fastness that heat-insulation layer bonds；So as to improve and the antiscour and anti-erosion effect of working lining, extend working lining and use the longevity
Life.
The bottom face of the heat-insulation layer, entire body are fixedly installed recessed dovetail groove, and dovetail groove is in the bottom surface of heat-insulation layer
Spaced set；Thermal insulation layer is fixedly installed on the bottom of heat-insulation layer, the top entire body dovetail projection of thermal insulation layer, dovetail projection every
Equidistantly it is fixedly installed on thermosphere；The main purpose so set is to pass through matching somebody with somebody for recessed dovetail groove and dovetail projection
Close, close connection, improve the fastness of the bonding of heat-insulation layer and thermal insulation layer, improve the bond strength of heat-insulation layer and thermal insulation layer.
The right-angle side of the wherein dovetail groove and the angle of hypotenuse are 60 DEG C, and the main purpose so set is to increase
Skin-friction force greatly between dovetail groove and dovetail projection, increase the being firmly bonded property of heat-insulation layer and thermal insulation layer；But it is not
The angle of the right-angle side and hypotenuse of dovetail groove and dovetail projection, is the bigger the better, and angle is bigger, to heat-insulation layer and thermal insulation layer clamping
During combination, bad clamping；Angle is too small, and the skin-friction force between dovetail groove and dovetail projection is inadequate, reduce heat-insulation 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 hypotenuse of dovetail groove and dovetail projection, is by nothing
Experiment for several times, and actual worst hot case environment is combined, and the optimal angle parameter selected.
The right-angle side of dovetail groove and the dovetail projection and the angle of hypotenuse are 60 DEG C, the outer turning of each angle, radius
For 3mm, interior corner radius is 5mm round-corner transition；The main purpose for being provided with round-corner transition be in order to, prevent heat-insulation layer and
The generation of high temperature thermal stress between thermal insulation layer, the compactness that heat-insulation layer and thermal insulation layer combine is improved, improve the intensity of its combination.
Beneficial effects of the present invention：The technical program provides a kind of adiabatic compound magnesia-spinel brick, its scientific structure design
Rationally, it is simple in construction, use that adiabatic, heat-insulating property is high；Magnesia-spinel brick thermal conductivity factor height is can solve the problem that, liquid steel temperature is lost in
It hurry up, need 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 steel
The problem of malformation is serious；The heat conductivility of magnesia spinel matter arch brick is greatly reduced, while is reduced in refining process
The loss of molten steel heat, has saved energy consumption；The bulk strength of composite brick is enhanced, and then improves the use longevity of magnesia-spinel brick
Life.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of the embodiment of the present invention 1；
Fig. 3 is the structural representation of the embodiment of the present invention 2；
Marked in figure：1st, working lining, 2, heat-insulation layer, 3, thermal insulation layer, 4, groove, 5, raised, 6, dovetail groove, 7, dovetail projection, 8,
Right-angle side, 9, hypotenuse.
Embodiment
The embodiment of the present invention is described in further detail below in conjunction with accompanying drawing.
As illustrated, a kind of adiabatic compound magnesia-spinel brick, including working lining 1, heat-insulation layer 2, thermal insulation layer 3；Working lining 1 is
With steel contacts layer, working lining 1 is fixedly installed on upper position, and the bottom entire body of working lining 1 sets fluted 4, and groove 4 is recessed
The arc entered, groove 4 the bottom of working lining 1 equidistantly, continuous set form S-shaped；The bottom of working lining 1 is fixedly installed guarantor
Warm layer 2, the top entire body of heat-insulation layer 2 are fixedly installed projection 5, and projection 5 is circular arc, upper plane of the projection 5 in heat-insulation layer 2
Upper equidistant, continuous set forms reverse S-shaped；The bottom face of heat-insulation layer 2, entire body are fixedly installed recessed dovetail groove 6,
Bottom surface spaced set of the dovetail groove 6 in heat-insulation layer 2；Thermal insulation layer 3 is fixedly installed on the bottom of heat-insulation layer 2, the top of thermal insulation layer 3
Entire body is provided with dovetail projection 7, and dovetail projection 7 is equidistantly fixedly installed on thermal insulation layer 3；Working lining 1, heat-insulation layer 2, thermal insulation layer
3 form overall arch brick.
The bottom of the working lining 1 is equidistant, continuously sets the arc groove 4 for forming S-shaped, the upper flat with heat-insulation layer 2
It is equidistant on face, continuous to set the arc convex 5 for forming reverse S-shaped to be brought into close contact connection.
The dovetail groove 6 that the bottom face of the heat-insulation layer 2 is set, is closely pasted with the top entire body dovetail projection 7 of thermal insulation layer 3
Close connection.
The right-angle side 8 of the groove 4 and the angle of hypotenuse 9 are 60 DEG C, the outer turning of each angle, radius 3mm, are inside turned
Angular radius is 5mm round-corner transition.
The working lining 1 is by the magnesia-spinel brick of mechanical pressing, and heat-insulation 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 reverse S-shaped projection 5 in heat-insulation 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 reverse S-shaped projection 5 of heat-insulation layer 2 and is fixedly connected, and formation is integrated；Then by heat-insulation layer 2
Dovetail groove 6 on smear one layer of fire resisting high-temp glue, while on the dovetail projection 7 of thermal insulation layer 3 smear one layer of fire resisting high-temp glue, and
Thermal insulation layer 3 is directed at into fitting with heat-insulation layer 2 to be fixedly connected；Working lining 1, heat-insulation layer 2 and thermal insulation layer 3 is set 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 of working lining 1 sets fluted 4, and groove 4 be recessed V-arrangement, groove 4 the bottom of working lining 1 it is equidistant,
Continuous set forms recessed tooth form；The bottom of working lining 1 is fixedly installed heat-insulation layer 2, and the top entire body of heat-insulation layer 2, which is fixed, to be set
Projection 5 is equipped with, projection 5 is V-arrangement, and projection 5 is equidistant in the upper plane of heat-insulation layer 2, continuously sets the tooth form for forming protrusion.
Embodiment two,
The bottom entire body of working lining 1 sets fluted 4, and groove 4 is recessed rectangle, and groove 4 is between bottom of working lining 1 etc.
Away from, continuous set；The bottom of working lining 1 is fixedly installed heat-insulation layer 2, and the top entire body of heat-insulation layer 2 is fixedly installed projection 5,
Projection 5 is rectangle, and projection 5 equidistantly, is continuously set in the upper plane of heat-insulation layer 2.
Claims (7)
1. a kind of adiabatic compound magnesia-spinel brick, including working lining, heat-insulation layer, thermal insulation layer；It is characterized in that：Working lining is and steel
Water contact layer, working lining are fixedly installed on 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 set form S-shaped；The bottom of working lining is fixedly installed heat-insulation layer, insulation
The top entire body of layer is fixedly installed projection, and projection is circular arc, and projection is equidistant in the upper plane of heat-insulation layer, continuously sets
Put to form reverse S-shaped；The bottom face of heat-insulation layer, entire body are fixedly installed recessed dovetail groove, and dovetail groove is in heat-insulation layer
Bottom surface spaced set；Thermal insulation layer is fixedly installed on the bottom of heat-insulation layer, and the top entire body of thermal insulation layer is provided with dovetail projection, swallow
Tail projection is equidistantly fixedly installed on thermal insulation layer；Working lining, heat-insulation layer, thermal insulation layer form overall arch brick.
A kind of 2. adiabatic compound magnesia-spinel brick according to claim 1, it is characterised in that：Between bottom of working lining etc.
Form the arc groove of S-shaped away from, continuous set, with the upper plane of heat-insulation layer equidistantly, continuous set form reverse S-shaped
Arc convex is brought into close contact connection.
A kind of 3. adiabatic compound magnesia-spinel brick according to claim 1, it is characterised in that：The bottom face of heat-insulation layer is set
The dovetail groove put, it is brought into close contact and is connected with the top entire body dovetail projection of thermal insulation layer.
A kind of 4. adiabatic compound magnesia-spinel brick 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 5mm round-corner transition.
A kind of 5. adiabatic compound magnesia-spinel brick according to claim 1, it is characterised in that：Working lining is to be pressed into by machine
The magnesia-spinel brick of type, heat-insulation layer are High-Alumina hollow ball brick, and thermal insulation layer is light weeight alumina brick.
A kind of 6. adiabatic compound magnesia-spinel brick 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 set form recessed tooth form；Work
The bottom of layer is fixedly installed heat-insulation layer, and the top entire body of heat-insulation layer is fixedly installed projection, and projection is V-arrangement, and projection is being incubated
The tooth form of formation protrusion equidistantly, is continuously set in the upper plane of layer.
A kind of 7. adiabatic compound magnesia-spinel brick 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 bottom of working lining is consolidated
Surely heat-insulation layer is provided with, the top entire body of heat-insulation layer is fixedly installed projection, and projection is rectangle, and projection is on the top of heat-insulation layer
Equidistantly, continuously set in plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711135054.9A CN107664434A (en) | 2017-11-16 | 2017-11-16 | A kind of adiabatic compound magnesia-spinel brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711135054.9A CN107664434A (en) | 2017-11-16 | 2017-11-16 | A kind of adiabatic compound magnesia-spinel brick |
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| Publication Number | Publication Date |
|---|---|
| CN107664434A true CN107664434A (en) | 2018-02-06 |
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ID=61145299
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711135054.9A Pending CN107664434A (en) | 2017-11-16 | 2017-11-16 | A kind of adiabatic compound magnesia-spinel brick |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113698181A (en) * | 2021-08-23 | 2021-11-26 | 郑州瑞泰耐火科技有限公司 | Low-thermal-conductivity multilayer composite magnesia-hercynite brick and preparation process thereof |
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|---|---|---|---|---|
| CN104567412A (en) * | 2013-10-11 | 2015-04-29 | 宁夏琪凯节能设备有限公司 | Energy-saving composite refractory brick |
| CN204854354U (en) * | 2015-07-30 | 2015-12-09 | 江苏顺星耐火科技有限公司 | Compound abrasive brick of low heat conduction |
| CN106839776A (en) * | 2017-03-16 | 2017-06-13 | 山东柯信新材料有限公司 | A kind of composite brick of dovetail formula mosaic texture and preparation method thereof |
| CN207515533U (en) * | 2017-11-16 | 2018-06-19 | 洛阳利尔耐火材料有限公司 | A kind of compound magnesia-spinel brick of thermal insulation |
-
2017
- 2017-11-16 CN CN201711135054.9A patent/CN107664434A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567412A (en) * | 2013-10-11 | 2015-04-29 | 宁夏琪凯节能设备有限公司 | Energy-saving composite refractory brick |
| CN204854354U (en) * | 2015-07-30 | 2015-12-09 | 江苏顺星耐火科技有限公司 | Compound abrasive brick of low heat conduction |
| CN106839776A (en) * | 2017-03-16 | 2017-06-13 | 山东柯信新材料有限公司 | A kind of composite brick of dovetail formula mosaic texture and preparation method thereof |
| CN207515533U (en) * | 2017-11-16 | 2018-06-19 | 洛阳利尔耐火材料有限公司 | A kind of compound magnesia-spinel brick of thermal insulation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113698181A (en) * | 2021-08-23 | 2021-11-26 | 郑州瑞泰耐火科技有限公司 | Low-thermal-conductivity multilayer composite magnesia-hercynite brick and preparation process thereof |
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