CN107573030A - A kind of unburned composite refractory brick and preparation method thereof - Google Patents
A kind of unburned composite refractory brick and preparation method thereof Download PDFInfo
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- CN107573030A CN107573030A CN201711036074.0A CN201711036074A CN107573030A CN 107573030 A CN107573030 A CN 107573030A CN 201711036074 A CN201711036074 A CN 201711036074A CN 107573030 A CN107573030 A CN 107573030A
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- 239000011449 brick Substances 0.000 title claims abstract description 80
- 239000002131 composite material Substances 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 239000011159 matrix material Substances 0.000 claims abstract description 51
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 24
- 239000007767 bonding agent Substances 0.000 claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 21
- 230000008929 regeneration Effects 0.000 claims abstract description 20
- 238000011069 regeneration method Methods 0.000 claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000004927 clay Substances 0.000 claims abstract description 19
- 239000010439 graphite Substances 0.000 claims abstract description 19
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 19
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 17
- 235000013312 flour Nutrition 0.000 claims abstract description 17
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 17
- 238000001125 extrusion Methods 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims description 30
- 238000011049 filling Methods 0.000 claims description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 238000007885 magnetic separation Methods 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 6
- 230000001172 regenerating effect Effects 0.000 claims description 6
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 3
- -1 phenolic aldehyde Chemical class 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 abstract description 3
- 230000009970 fire resistant effect Effects 0.000 abstract description 2
- 238000005245 sintering Methods 0.000 abstract description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical group [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 5
- 239000005011 phenolic resin Substances 0.000 description 5
- 229920001568 phenolic resin Polymers 0.000 description 5
- 238000003723 Smelting Methods 0.000 description 2
- 229910001570 bauxite Inorganic materials 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009766 low-temperature sintering Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
The present invention discloses a kind of unburned composite refractory brick and preparation method thereof, it is related to technical field of fire-resistant material preparation, include the brick body of wedge shape, brick body includes working lining and the composite bed made of regeneration matrix made of primary matrix, and the length ratio of the working lining and composite bed is 1.5 2：1, it is described to regenerate material of the matrix by following percentage by weight if the composite bed includes the dried layer regeneration hypothallus to link together：The wt% of aggregate 75 78, the wt% of bonding agent 4.5 5.5, the wt% of alumina powder 2.5 2.8, the wt% of soft clay 4.5 5, the wt% of silica flour 4.5 5, the 7wt% of graphite 5, useless brick is recycled, cost can be effectively reduced, economized on resources, there is very high economic benefit and environmental benefit；The present invention by working lining and composite bed one extrusion forming, avoids sintering, shaping speed is fast, and saves the energy by mould and extruder.
Description
Technical field
The present invention relates to technical field of fire-resistant material preparation, more particularly to a kind of baking-free type for being used in smelting vessel is compound
Refractory brick.
Background technology
, it is necessary to use substantial amounts of refractory brick in the smelting vessel of metallurgy industry, due to being chronically in rugged environment,
Refractory material is easily damaged, it is necessary to regularly replace, and for security consideration, the safety standard formulated according to steel industry is used
The thickness that refractory material liner body has more than 60mm goes out of use, and very big waste is caused to resource, while cost increases considerably.
The content of the invention
It is an object of the invention to overcome deficiency of the prior art, there is provided it is unburned multiple that a kind of utilization rate is high, cost is low
Close refractory brick and preparation method thereof.
The present invention is achieved by the following technical solutions：A kind of unburned composite refractory brick, include the brick body of wedge shape, it is described
Brick body includes working lining and the composite bed made of regeneration matrix, the length of the working lining and composite bed made of primary matrix
It is 1.5-2 to spend ratio：1, if the composite bed includes the dried layer regeneration hypothallus to link together, the regeneration matrix is by following heavy
Measure the material of percentage：Aggregate 75-78 wt%, bonding agent 4.5-5.5 wt%, alumina powder 2.5-2.8 wt%, soft clay
4.5-5 wt%, silica flour 4.5-5 wt%, graphite 5-7wt%.
Further, it is described to regenerate material of the matrix by following percentage by weight：Aggregate 77-78 wt%, bonding agent 5.2-
5.5 wt%, alumina powder 2.5-2.8 wt%, soft clay 4.8-5 wt%, silica flour 4.7-5 wt%, graphite 5-5.5 wt%.
Further, it is described to regenerate material of the matrix by following percentage by weight：Wt % of aggregate 77, bonding agent 5.2
Wt%, the wt% of alumina powder 2.8, the wt% of soft clay 4.8, the wt% of silica flour 4.7, the wt% of graphite 5.5.
Further, the bonding agent is selected from phenolic resin, waterglass, phosphoric acid, aluminium dihydrogen phosphate it is therein a kind of or
It is a variety of.
Further, the aggregate is given up after brick crushes by AL2O3-SiC-C matter and is mixed to get.
Further, tack coat, the bonding layer material and regeneration matrix are provided between the composite bed and working lining
Layer material is identical.
A kind of preparation method of unburned composite refractory brick, comprises the following steps：
A, chooses the useless brick of AL2O3-SiC-C matter, and crushing obtains two kinds of particle diameters of 3-5mm and 1-3mm, then passes through magnetic separation respectively, obtain
To the particle of two kinds of particle diameters of 3-5mm and 1-3mm；
B, by the particle of two kinds of particle diameters of the 3-5mm obtained by step A and 1-3mm using weight ratio as 5:2-3 ratio adds to kolleroang
Interior mixed grind 3-5 minutes, obtain aggregate；
C, the kolleroang into step B add bonding agent, mixed grind 3-5 minutes；
D, the kolleroang into step C add graphite, mixed grind 1-2 minutes；
F, the kolleroang into D steps add alumina powder, soft clay, silica flour, add at intervals of 1-2 minutes, during which keep
Mixed grind, after the completion of all materials addition, mixed grind discharges after 20-25 minutes, obtains regenerating matrix；
E, the useless brick of AL2O3-SiC-C matter is chosen, through intercepting, polishing, working lining is made, working lining is put into grinding tool, filling is again
Raw matrix, obtains tack coat, is subsequently filled multi-layer recycled matrix, through extruder extrusion forming after filling completion, obtains finished product and exempt from
Burn composite refractory brick.
Further, the mixed grind temperature in the A-D steps is 30-40 DEG C.
Further, the squeeze pressure of extruder is 100-150t in the E steps.
Wherein, alumina powder is used as agglutinant, strengthens the oxidizing atmosphere of permanent layer during use, promotes permanent
Layer low-temperature sintering；Plastic clay is used as plastic agent, reduces the deformation of permanent layer in use.
The beneficial effects of the present invention are：Useless brick is recycled, cost can be effectively reduced, economized on resources, had
Very high economic benefit and environmental benefit；The present invention by mould and extruder by working lining and composite bed one extrusion forming,
Avoid sintering, shaping speed is fast, and saves the energy.
Brief description of the drawings
Fig. 1 is that the structural diagrams of brick body are intended to；
Wherein：1- brick bodies, 2- working linings, 3- composite beds, 4- regeneration hypothalluses, 5- tack coats.
Embodiment
Technical scheme is illustrated below in conjunction with specific embodiment.
Former brick in following embodiment is made up of the raw material of following percentage by weight：Bauxite 60-65wt%, carborundum
8-13wt%, corundum 7-12wt%, graphite 5-7wt%, the wt% of phenolic resin 4.5, the wt% of powder 4.5, wherein powder by aluminum oxide,
Plasticizing clay, silicon powder are made.
The preparation method of former brick is as follows：
The first step, bauxite, carborundum, corundum are added in kolleroang, dry-mixed 3 minutes；
Second step, phenolic resin is added in the kolleroang of the first step, mixed grind 5 minutes；
3rd step, graphite is added in the kolleroang of second step, mixed grind 3 minutes；
4th step, powder is added in the kolleroang of the 3rd step, mixed grind 19 minutes；
5th step, the material obtained by the 4th step is fitted into solid hopper, automatic fusion reaction 24 hours, both obtains finished product original brick.
Wherein for the first step to the temperature control of the 4th step at 30-40 DEG C, the temperature control of the 5th step is 40 DEG C.
Work in following embodiment is interception gained after above-mentioned former brick use, and the brick that gives up is the whole useless brick after former brick use
Or the useless brick in part of interception, multi-layer recycled matrix first pass through crimping before filling to mould and are bonded together, specific steps
It is as follows：
Step 1, regeneration matrix is extruded to the regeneration matrix for 1-2cm thickness under 30-50t pressure；
Step 2, the regeneration matrix of the 1-2cm thickness obtained by step 1 is laminated 3-5 layers, then suppressed under 50-60t pressure
Into multi-layer recycled matrix.
By regeneration matrix by extruding three times, it is ensured that its inner homogeneous, improve service life.
Regenerate hypothallus the number of plies according to the size of brick body determine, and the size of brick body according to be actually needed determination.
Embodiment 1
A kind of unburned composite refractory brick, include the brick body 1 of wedge shape, brick body 1 is including the working lining 2 made of primary matrix and by again
The length ratio of composite bed 3 made of raw matrix, working lining 2 and composite bed 3 is 1.5：1, if composite bed includes what is linked together
Dried layer regenerates hypothallus 4, and regeneration matrix includes the material of following percentage by weight：The wt% of aggregate 78, the wt% of bonding agent 5, oxidation
The wt% of aluminium powder 2.5, the wt% of soft clay 5, the wt% of silica flour 4.5, the wt% of graphite 5, wherein bonding agent are phenolic resin.
A kind of preparation method of unburned composite refractory brick, comprises the following steps：
A, chooses the useless brick of AL2O3-SiC-C matter, and crushing obtains two kinds of particle diameters of 3-5mm and 1-3mm, then passes through magnetic separation respectively, obtain
To the particle of two kinds of particle diameters of 3-5mm and 1-3mm；
B, by the particle of two kinds of particle diameters of the 3-5mm obtained by step A and 1-3mm using weight ratio as 5:2 ratio is added in kolleroang
Mixed grind 3 minutes, obtains aggregate；
C, the kolleroang into step B add bonding agent, mixed grind 5 minutes；
D, the kolleroang into step C add graphite, mixed grind 1 minute；
F, the kolleroang into D steps add alumina powder, soft clay, silica flour, added at intervals of 1 minute, during which keep mixed
Grind, after the completion of all materials addition, mixed grind discharges after 20 minutes, obtains regenerating matrix；
E, the useless brick of AL2O3-SiC-C matter is chosen, through intercepting, polishing, working lining is made, working lining is put into grinding tool, filling is again
Raw matrix, obtains tack coat, is subsequently filled multi-layer recycled matrix, through extruder extrusion forming after filling completion, obtains finished product and exempt from
Burn composite refractory brick.
Mixed grind temperature wherein in A-D steps is 30-40 DEG C, and the squeeze pressure of extruder is 100t in E steps.
The performance parameter of the unburned composite refractory brick of gained sees attached list 1.
Embodiment 2
A kind of unburned composite refractory brick, include the brick body 1 of wedge shape, brick body 1 is including the working lining 2 made of primary matrix and by again
The length ratio of composite bed 3 made of raw matrix, working lining 2 and composite bed 3 is 1.5：1, if composite bed includes what is linked together
Dried layer regenerates hypothallus 4, is bonded between working lining 2 and composite bed 3 by tack coat 5, and the thickness of tack coat is 1-2cm, regeneration
Matrix includes the material of following percentage by weight：Aggregate 75wt%, the wt% of bonding agent 5.5, the wt% of alumina powder 2.5, soft clay
5 wt%, the wt% of silica flour 5, the wt% of graphite 7, wherein bonding agent are phenolic resin and aluminium dihydrogen phosphate, and the weight ratio of the two is 1：
1.2。
A kind of preparation method of unburned composite refractory brick, comprises the following steps：
A, chooses the useless brick of AL2O3-SiC-C matter, and crushing obtains two kinds of particle diameters of 3-5mm and 1-3mm, then passes through magnetic separation respectively, obtain
To the particle of two kinds of particle diameters of 3-5mm and 1-3mm；
B, by the particle of two kinds of particle diameters of the 3-5mm obtained by step A and 1-3mm using weight ratio as 5:2 ratio is added in kolleroang
Mixed grind 5 minutes, obtains aggregate；
C, the kolleroang into step B add bonding agent, mixed grind 3 minutes；
D, the kolleroang into step C add graphite, mixed grind 2 minutes；
F, the kolleroang into D steps add alumina powder, soft clay, silica flour, added at intervals of 2 minutes, during which keep mixed
Grind, after the completion of all materials addition, mixed grind discharges after 25 minutes, obtains regenerating matrix；
E, E, the useless brick of AL2O3-SiC-C matter is chosen, through intercepting, polishing, working lining is made, working lining is put into grinding tool, fill
Matrix is regenerated, obtains tack coat, multi-layer recycled matrix is subsequently filled, through extruder extrusion forming after filling completion, obtains finished product
Unburned composite refractory brick.
Mixed grind temperature wherein in A-D steps is 30-40 DEG C, and the squeeze pressure of extruder is 130t in E steps.
The performance parameter of the unburned composite refractory brick of gained sees attached list 1.
Embodiment 3
A kind of unburned composite refractory brick, include the brick body 1 of wedge shape, brick body 1 is including the working lining 2 made of primary matrix and by again
The length ratio of composite bed 3 made of raw matrix, working lining 2 and composite bed 3 is 1.5：1, if composite bed includes what is linked together
Dried layer regenerates hypothallus 4, is bonded between working lining 2 and composite bed 3 by tack coat 5, and the thickness of tack coat is 1-2cm, regeneration
Matrix includes the material of following percentage by weight：Aggregate 77wt%, the wt% of bonding agent 4.5, the wt% of alumina powder 2.8, soft clay
4.7 wt%, silica flour 4.5wt%, the wt% of graphite 6.5, wherein bonding agent are phosphoric acid and aluminium dihydrogen phosphate, and the weight ratio of the two is 2：
1。
A kind of preparation method of unburned composite refractory brick, comprises the following steps：
A, chooses the useless brick of AL2O3-SiC-C matter, and crushing obtains two kinds of particle diameters of 3-5mm and 1-3mm, then passes through magnetic separation respectively, obtain
To the particle of two kinds of particle diameters of 3-5mm and 1-3mm；
B, by the particle of two kinds of particle diameters of the 3-5mm obtained by step A and 1-3mm using weight ratio as 5:3 ratio is added in kolleroang
Mixed grind 3 minutes, obtains aggregate；
C, the kolleroang into step B add bonding agent, mixed grind 4 minutes；
D, the kolleroang into step C add graphite, mixed grind 2 minutes；
F, the kolleroang into D steps add alumina powder, soft clay, silica flour, added at intervals of 2 minutes, during which keep mixed
Grind, after the completion of all materials addition, mixed grind discharges after 23 minutes, obtains regenerating matrix；
E, the useless brick of AL2O3-SiC-C matter is chosen, through intercepting, polishing, working lining is made, working lining is put into grinding tool, filling is again
Raw matrix, obtains tack coat, is subsequently filled multi-layer recycled matrix, through extruder extrusion forming after filling completion, obtains finished product and exempt from
Burn composite refractory brick.
Mixed grind temperature wherein in A-D steps is 30-40 DEG C, and the squeeze pressure of extruder is 150t in E steps.
The performance parameter of the unburned composite refractory brick of gained sees attached list 1.
Embodiment 4
A kind of unburned composite refractory brick, include the brick body 1 of wedge shape, brick body 1 is including the working lining 2 made of primary matrix and by again
The length ratio of composite bed 3 made of raw matrix, working lining 2 and composite bed 3 is 1.5：1, if composite bed includes what is linked together
Dried layer regenerates hypothallus 4, is bonded between working lining 2 and composite bed 3 by tack coat 5, and the thickness of tack coat is 1-2cm, regeneration
Matrix includes the material of following percentage by weight：Aggregate 77wt%, the wt% of bonding agent 5.2, the wt% of alumina powder 2.8, soft clay
4.8 wt%, silica flour 4.7wt%, the wt% of graphite 5.5, wherein bonding agent are waterglass.
A kind of preparation method of unburned composite refractory brick, comprises the following steps：
A, chooses the useless brick of AL2O3-SiC-C matter, and crushing obtains two kinds of particle diameters of 3-5mm and 1-3mm, then passes through magnetic separation respectively, obtain
To the particle of two kinds of particle diameters of 3-5mm and 1-3mm；
B, by the particle of two kinds of particle diameters of the 3-5mm obtained by step A and 1-3mm using weight ratio as 5:2 ratio is added in kolleroang
Mixed grind 4 minutes, obtains aggregate；
C, the kolleroang into step B add bonding agent, mixed grind 3 minutes；
D, the kolleroang into step C add graphite, mixed grind 1 minute；
F, the kolleroang into D steps add alumina powder, soft clay, silica flour, added at intervals of 1 minute, during which keep mixed
Grind, after the completion of all materials addition, mixed grind discharges after 20 minutes, obtains regenerating matrix；
E, the useless brick of AL2O3-SiC-C matter is chosen, through intercepting, polishing, working lining is made, working lining is put into grinding tool, filling is again
Raw matrix, obtains tack coat, is subsequently filled multi-layer recycled matrix, through extruder extrusion forming after filling completion, obtains finished product and exempt from
Burn composite refractory brick.
Mixed grind temperature wherein in A-D steps is 30-40 DEG C, and the squeeze pressure of extruder is 150t in E steps.
The performance parameter of the unburned composite refractory brick of gained sees attached list 1.
Subordinate list 1
The time that average life in subordinate list 1 is undergone by brick body from using to there is pit or crackle.
From subordinate list 1, the unburned composite refractory brick obtained by embodiment 1-4, bulk density, refractoriness, draw use the longevity
The reduction of life is within 10%, but the present invention recycles useless brick, can effectively reduce cost, economize on resources, and has very
High economic benefit and environmental benefit；The present invention by working lining and composite bed one extrusion forming, is kept away by mould and extruder
Non-sintered, shaping speed is fast, and saves the energy, has good promotion effect.
Claims (9)
1. a kind of unburned composite refractory brick, it is characterised in that include the brick body of wedge shape, brick body includes being made up of primary matrix
Working lining and the composite bed made of regeneration matrix, the length ratio of the working lining and composite bed is 1.5-2：1, it is described compound
If layer includes the dried layer regeneration hypothallus to link together, described to regenerate material of the matrix by following percentage by weight：Aggregate 75-
78 wt%, bonding agent 4.5-5.5 wt%, alumina powder 2.5-2.8 wt%, soft clay 4.5-5 wt%, silica flour 4.5-5 wt%,
Graphite 5-7wt%.
A kind of 2. unburned composite refractory brick according to claim 1, it is characterised in that：The regeneration matrix is by following weight
The material of percentage：Aggregate 77-78 wt%, bonding agent 5.2-5.5 wt%, alumina powder 2.5-2.8 wt%, soft clay 4.8-
5 wt%, silica flour 4.7-5 wt%, graphite 5-5.5 wt%.
A kind of 3. unburned composite refractory brick according to claim 1, it is characterised in that：The regeneration matrix is by following weight
The material of percentage：Wt % of aggregate 77, the wt% of bonding agent 5.2, the wt% of alumina powder 2.8, the wt% of soft clay 4.8, silica flour
4.7 wt%, the wt% of graphite 5.5.
4. a kind of unburned composite refractory brick according to claim 1, it is characterised in that the bonding agent is selected from phenolic aldehyde tree
Fat, waterglass, phosphoric acid, aluminium dihydrogen phosphate one or more therein.
5. a kind of unburned composite refractory brick according to claim 1, it is characterised in that the aggregate is by AL2O3-SiC-C
Matter is given up after brick crushes and is mixed to get.
6. a kind of unburned composite refractory brick according to claim 1, it is characterised in that between the composite bed and working lining
Tack coat is provided with, the bonding layer material is identical with regeneration matrix layer material.
A kind of 7. method for preparing a kind of unburned composite refractory brick according to claim any one of 1-6, it is characterised in that
Comprise the following steps：
A, chooses the useless brick of AL2O3-SiC-C matter, and crushing obtains two kinds of particle diameters of 3-5mm and 1-3mm, then passes through magnetic separation respectively, obtain
To the particle of two kinds of particle diameters of 3-5mm and 1-3mm；
B, by the particle of two kinds of particle diameters of the 3-5mm obtained by step A and 1-3mm using weight ratio as 5:2-3 ratio adds to kolleroang
Interior mixed grind 3-5 minutes, obtain aggregate；
C, the kolleroang into step B add bonding agent, mixed grind 3-5 minutes；
D, the kolleroang into step C add graphite, and mixed grind 1-2 is more than minute；
F, the kolleroang into D steps add alumina powder, soft clay, silica flour, add at intervals of 1-2 minutes, during which keep
Mixed grind, after the completion of all materials addition, mixed grind discharges after 20-25 minutes, obtains regenerating matrix；
E, the useless brick of AL2O3-SiC-C matter is chosen, through intercepting, polishing, working lining is made, working lining is put into grinding tool, filling is again
Raw matrix, obtains tack coat, is subsequently filled multi-layer recycled matrix, through extruder extrusion forming after filling completion, obtains finished product and exempt from
Burn composite refractory brick.
A kind of 8. method for preparing unburned composite refractory brick according to claim 7, it is characterised in that the A-D steps
In mixed grind temperature be 30-40 DEG C.
9. a kind of method for preparing unburned composite refractory brick according to claim 7, it is characterised in that in the E steps
The squeeze pressure of extruder is 100-150t.
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| CN201711036074.0A CN107573030A (en) | 2017-10-30 | 2017-10-30 | A kind of unburned composite refractory brick and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110803931A (en) * | 2019-12-04 | 2020-02-18 | 焦作鑫昆节能保温材料科技有限公司 | Novel composite baking-free refractory brick and preparation process thereof |
| CN111423220A (en) * | 2020-05-18 | 2020-07-17 | 中冶焦耐(大连)工程技术有限公司 | Baking-free refractory brick and low-emission, energy-saving and intelligent production process thereof |
| CN117303919A (en) * | 2023-10-19 | 2023-12-29 | 郑州金河源耐火材料有限公司 | Unfired chrome corundum refractory brick and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111423220A (en) * | 2020-05-18 | 2020-07-17 | 中冶焦耐(大连)工程技术有限公司 | Baking-free refractory brick and low-emission, energy-saving and intelligent production process thereof |
| CN111423220B (en) * | 2020-05-18 | 2022-06-17 | 中冶焦耐(大连)工程技术有限公司 | Baking-free refractory brick and low-emission, energy-saving and intelligent production process thereof |
| CN117303919A (en) * | 2023-10-19 | 2023-12-29 | 郑州金河源耐火材料有限公司 | Unfired chrome corundum refractory brick and preparation method thereof |
| CN117303919B (en) * | 2023-10-19 | 2024-03-08 | 郑州金河源耐火材料有限公司 | Unfired chrome corundum refractory brick and preparation method thereof |
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Application publication date: 20180112 |