CN105669170B - A kind of heavy and light composite refractory brick losing pore creating material containing burning - Google Patents
A kind of heavy and light composite refractory brick losing pore creating material containing burning Download PDFInfo
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- CN105669170B CN105669170B CN201610013624.6A CN201610013624A CN105669170B CN 105669170 B CN105669170 B CN 105669170B CN 201610013624 A CN201610013624 A CN 201610013624A CN 105669170 B CN105669170 B CN 105669170B
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Abstract
Include containing the heavy and light composite refractory brick for burning mistake pore creating material, including heavy flame retardant coating and lightweight thermal insulation layer, the heavy flame retardant coating the present invention relates to a kind of：Fused white corundum 30wt%~60wt%, electrofused mullite 15wt%~35wt%, andalusite 10wt%~25wt%, clay 6wt%~15wt%, alumina powder 4wt%~10wt%, calcium lignosulfonate 3wt%~6wt%, yellow starch gum 1wt%~3wt%, silica flour 1wt%~4wt%；The lightweight thermal insulation layer includes：Fused white corundum 13wt%~35wt%, electrofused mullite 9wt%~25wt%, andalusite 4wt%~15wt%, clay 6wt%~15wt%, alumina powder 4wt%~10wt%, calcium lignosulfonate 3wt%~6wt%, yellow starch gum 1wt%~3wt%, silica flour 1wt%~4wt%；The lightweight thermal insulation layer also includes that the burning of 25wt%~35wt% loses pore creating material.The invention further relates to described a kind of containing the production technology for burning the heavy and light composite refractory brick for losing pore creating material.It is a kind of containing the heavy and light composite refractory brick and its production technology that burn mistake pore creating material the present invention overcomes the problem of faying face easy fracture, being provided caused by material composition difference.
Description
Technical field
The present invention relates to fire resisting material field more particularly to a kind of heavy and light composite refractory bricks losing pore creating material containing burning.
Background technology
China's economic development is rapid, and the development of production of energy relatively lags behind much.China's economy keeps 9% increasing for a long time
Long speed, and disposable production of energy amount growth rate is then held only in 4% or so.Another method for solving energy shortage is section
Can, that is, the utilization ratio for reducing heat loss, improving thermal energy reduces energy waste.Energy conservation project is considered as " the 5th energy in the world
Source ", meaning are particularly significant.It is calculated according to national departments concerned, all kinds of kilns in China and heat supply pipeline are not good at due to keeping the temperature, every year
Equivalent about 3000~40,000,000 tons of the coal of mark of heat loss.Be transformed using novel heat insulation technology and equipment, make these kilns and
It is entirely possible that heat supply pipeline, which reduces heat loss 20~30%, this will make China save mark coal 600~8,000,000 ton every year.
The accumulation of heat and radiation loss of liner of industry kiln heat-insulating material typically constitute from the 20~45% of Industrial Stoves total energy consumption.
Traditional industry stove is to achieve the purpose that heat preservation energy-saving, is usually constructed in heavy refractory brick marshalling or heavy unshape refractory
It is external to increase insulating layer.Due to needing two layers of masonry, the time of construction and expense is caused to increase, and kiln volume becomes huge
Greatly, heavy.
Disclosed in 25 days March in 2015 application No. is 201420551368.2 utility model disclose it is a kind of compound resistance to
Firebrick structure combines heavy material thermal insulation layer and light material insulating layer by concave-convex faying face, in same masonry
On realize it is heat-insulated and heat preservation effect, reduce time and the expense of construction, but also kiln body need not become bulky and hulking.
But such combination, due to two composition of layer difference, Thermal Contraction Coefficient difference is larger, and it is disconnected that faying face is be easy to cause in use
It splits, is susceptible to accident, the continuous production for being also unfavorable for factory obtains its maximum economic benefit.
Invention content
The purpose of the present invention is in view of the deficiencies of the prior art, overcome because material composition difference causes faying face easily broken
The problem of splitting provides a kind of containing the heavy and light composite refractory brick for burning mistake pore creating material.
A kind of heavy and light composite refractory brick losing pore creating material containing burning, including heavy flame retardant coating and lightweight thermal insulation layer.The heavy
The material of flame retardant coating and the main material of lightweight thermal insulation layer are completely the same, and the heavy flame retardant coating includes：Fused white corundum
30wt%~60wt%, electrofused mullite 15wt%~35wt%, andalusite 10wt%~25wt%, clay 6wt%~
15wt%, alumina powder 4wt%~10wt%, calcium lignosulfonate 3wt%~6wt%, yellow starch gum 1wt%~3wt%, silica flour 1wt%~
4wt%；The lightweight thermal insulation layer includes mainly：Fused white corundum 13wt%~35wt%, electrofused mullite 9wt%~
25wt%, andalusite 4wt%~15wt%, clay 6wt%~15wt%, alumina powder 4wt%~10wt%, calcium lignosulfonate 3wt%
~6wt%, yellow starch gum 1wt%~3wt%, silica flour 1wt%~4wt%；The lightweight thermal insulation layer also include 25wt%~
The burning of 35wt% loses pore creating material；The faying face of the heavy flame retardant coating and lightweight thermal insulation layer is plane faying face, zigzag combination
Any one in face or concave-convex faying face.
As an improvement, the silica flour is metallurgy level-one, silicone content >=98.5%；Granularity≤0.8 μm of the silica flour.
As an improvement, the granularity of the alumina powder is 10~20 μm.
As an improvement, described burn the mixture for losing that pore creating material is one or more of sawdust, rice husk or polystyrene spheres；
It is described to burn the grain size≤2.0mm for losing pore creating material.
As an improvement, the heavy flame retardant coating and lightweight thermal insulation layer are combined together with up-down structure.
As an improvement, the heavy flame retardant coating and lightweight thermal insulation layer are combined together with tiled configuration.
Beneficial effects of the present invention：
(1) the present invention provides it is a kind of containing burn lose pore creating material heavy and light composite refractory brick, due to its heavy flame retardant coating with it is general
Logical heavy refractory brick similar performance, has the advantages of common heavy refractory brick resistance to erosion, high temperature resistant, corrosion-resistant and heat shock resistance.
(2) the present invention provides a kind of containing the heavy and light composite refractory brick for losing pore creating material is burnt, due to adding in its lightweight thermal insulation layer
The burning entered loses pore creating material can burn mistake when temperature is higher than 1000 degrees Celsius, and is burnt into heavy and light composite refractory brick sintering process
Temperature is far above 1000 degrees Celsius, so due to there are a large amount of small stomatas in the lightweight thermal insulation layer so that
Its thermal conductivity substantially reduces, and has the advantages of common insulating layer heat preservation.
(3) the present invention provides a kind of containing the heavy and light composite refractory brick for losing pore creating material is burnt, due to its heavy flame retardant coating and gently
Vacuum layer basis material is consistent, keeps its Thermal Contraction Coefficient close, and at high temperature, burns and loses pore creating material burning mistake so that two layers
Material is identical, and Thermal Contraction Coefficient is more close so that and under working condition, the stress between two layer components becomes very little,
Faying face is firmly combined with the problem of being less prone to faying face fracture.
(4) the present invention provides it is a kind of containing burn lose pore creating material heavy and light composite refractory brick, due to its be provided simultaneously with it is heat-insulated and
The effect of heat preservation so that only need one layer of masonry when using and constructing, reduce time and the expense of construction, also save
Material and resource reduce discharge, while can also further decrease the accumulation of heat and radiation loss of Industrial Stoves.
(5) the present invention provides a kind of containing the heavy and light composite refractory brick for losing pore creating material is burnt, and pore creating material is lost due to adding to burn,
15% cost can be reduced relative to common same material heavy refractory brick.
It is another object of the present invention in view of the deficiencies of the prior art, overcome because material composition difference leads to faying face
The problem of easy fracture, provides a kind of containing the production technology for burning the heavy and light composite refractory brick for losing pore creating material.
A kind of production technology containing the heavy and light composite refractory brick for burning mistake pore creating material, including：Raw material processing-dispensing-is mixed
White silk-molding-drying-firing-inspection-warehousing finished products, it is characterised in that：
A. in proportioning process, include the dispensing of the dispensing of heavy flame retardant coating and lightweight thermal insulation layer, heavy flame retardant coating and lightweight
Insulating layer is individually separated carry out dispensing；The heavy flame retardant coating includes：Fused white corundum, electrofused mullite, andalusite, clay,
Alumina powder, calcium lignosulfonate, yellow starch gum, silica flour；The lightweight thermal insulation layer includes：Fused white corundum, electrofused mullite, andalusite, pottery
Soil, alumina powder, calcium lignosulfonate, yellow starch gum, silica flour；The lightweight thermal insulation layer also includes to burn to lose pore creating material；
B. it is kneaded in technique, by the heavy flame retardant coating for completing proportioning process and completes the lightweight thermal insulation layer of proportioning process respectively
Separately it is stirred；
It C., will be by being kneaded the heavy flame retardant coating of technique and being suppressed by the lightweight thermal insulation layer of calendering process in moulding process
Integrally, contact surface is formed between heavy flame retardant coating and lightweight thermal insulation layer；
D. in drying process, the drying process is divided into two stages, and the first stage is demoulding drying, drying temperature 40
~50 DEG C, drying time be 20~for 24 hours；Second stage is force drying, and drying temperature is 80~100 DEG C, drying time 15
~18h, the control of raw brick moisture content mass content is below 6% after drying；
E. in firing process, the heavy and light composite refractory brick for completing drying process is packed into high temperature kiln, is heated to from room temperature
1450~1500 DEG C, 6~8h is kept the temperature, completes firing process, meanwhile, burning mistake pore creating material, which burns to lose, forms a large amount of Minute pores.
As an improvement, the heavy flame retardant coating and lightweight thermal insulation layer are combined together with up-down structure.
As an improvement, the heavy flame retardant coating and lightweight thermal insulation layer are combined together with tiled configuration.
As an improvement, once compacting is integral for the heavy flame retardant coating and lightweight thermal insulation layer, pressing pressure is 3.2~
3.6t, compacting number are 4~6 times.
Beneficial effects of the present invention：
(1) the present invention provides a kind of containing the production technology for burning the heavy and light composite refractory brick for losing pore creating material, due to its heavy
Flame retardant coating and common heavy refractory brick similar performance, have common heavy refractory brick resistance to erosion, high temperature resistant, corrosion-resistant and heat-resisting punching
The advantages of hitting.It can be burnt simultaneously as the burning being added in its lightweight thermal insulation layer loses pore creating material when temperature is higher than 1000 degrees Celsius
It loses, and firing temperature is far above 1000 degrees Celsius in heavy and light composite refractory brick sintering process, so lightweight
Due to there are a large amount of small stomatas in insulating layer so that its heat conductivility substantially reduces, and has the excellent of common insulating layer heat preservation
Point.In this way, using it is described it is a kind of containing burn lose pore creating material heavy and light composite refractory brick production technology manufacture containing burn lose make
The heavy and light composite refractory brick of hole agent is provided simultaneously with heat-insulated and heat preservation effect so that one layer of masonry is only needed when using and constructing
, time and the expense of construction are reduced, material and resource are also saved, reduces discharge, while can also further decrease
The accumulation of heat and radiation loss of Industrial Stoves.
(2) the present invention provides a kind of containing the production technology for burning the heavy and light composite refractory brick for losing pore creating material, due to its heavy
Flame retardant coating is consistent with lightweight thermal insulation layer basis material, keeps its Thermal Contraction Coefficient close, and after firing process, burns to lose and make
Hole agent, which is burnt, loses so that materials at two layers is identical, and Thermal Contraction Coefficient is more close so that under working condition, between two layer components
Stress become very little, faying face is firmly combined with the problem of being less prone to faying face fracture.
(3) the present invention provides a kind of containing the production technology for burning the heavy and light composite refractory brick for losing pore creating material, due to adding
It burns and loses pore creating material, 15% cost can be reduced relative to common same material heavy refractory brick.
(4) the present invention provides a kind of containing the production technology for burning the heavy and light composite refractory brick for losing pore creating material, due to the present invention
Middle drying process is dried using two stages, first demoulds drying, this stage raw brick moisture content is big, need to control drying temperature, is prevented
Sealing point is drastically discharged and causes adobe cracked, then force drying, and control green body moisture reaches requirement, to ensure to be sintered
The quality of product afterwards.Simultaneously demould the dry time be 20~for 24 hours so that faying face can utilize this period of time progress molecule
Between infiltration and diffusion to further strengthen the bond strength of faying face.
Description of the drawings
Illustrate technical scheme of the present invention in order to clearer, it below will be to attached drawing needed in embodiment description
It is briefly described, it should be apparent that, drawings discussed below is only some embodiments of the present invention, for the general of this field
For logical technical staff, without creative efforts, other accompanying drawings are can also be obtained according to these attached drawings.
Fig. 1 is containing the heavy and light composite fire brick structure A schematic diagrames for burning mistake pore creating material.
Fig. 2 is containing the heavy and light composite fire brick structure B schematic diagrames for burning mistake pore creating material.
Fig. 3 is containing the heavy and light composite refractory brick zigzag faying face schematic shapes for burning mistake pore creating material.
Fig. 4 is containing the heavy and light composite refractory brick concave-convex faying face schematic shapes for burning mistake pore creating material.
Fig. 5 is containing the heavy and light composite refractory brick sectional view for burning mistake pore creating material.
Label declaration：
1. heavy flame retardant coating, 2. lightweight thermal insulation layers, 3. faying faces.
Specific implementation mode
Technical scheme of the present invention is clearly and completely illustrated below in conjunction with the accompanying drawings.
Embodiment one
Fig. 1 is containing the heavy and light composite fire brick structure A schematic diagrames for burning mistake pore creating material.As shown in Figure 1, being provided in the present embodiment
Be a kind of containing burning the heavy and light composite refractory brick for losing pore creating material, including heavy flame retardant coating 1 and lightweight thermal insulation layer 2；The heavy is resistance to
Fire bed 1 includes：Fused white corundum 60wt%, electrofused mullite 15wt%, andalusite 10wt%, clay 6wt%, alumina powder
4wt%, calcium lignosulfonate 3wt%, yellow starch gum 1wt%, silica flour 1wt%；The lightweight thermal insulation layer 2 includes：Fused white corundum 35wt%, electricity
Molten mullite 9wt%, andalusite 15wt%, clay 6wt%, alumina powder 4wt%, calcium lignosulfonate 3wt%, yellow starch gum 1wt%, silica flour
2wt%；The lightweight thermal insulation layer 2 also includes that the burning of 25wt% loses pore creating material；The heavy flame retardant coating 1 and lightweight thermal insulation layer 2
Faying face 3 is plane faying face.
The silica flour is metallurgy level-one, silicone content >=98.5%；Granularity≤0.8 μm of the silica flour；The aluminium oxide
The granularity of powder is 10 μm；It is sawdust, grain size≤2.0mm of the sawdust that the burning, which loses pore creating material,；The heavy flame retardant coating 1 and light
Vacuum layer 2 is combined together with up-down structure, and the thickness proportion of the heavy flame retardant coating 1 and lightweight thermal insulation layer 2 is 2:3.
Embodiment two
Fig. 2 is to lose heavy and light composite fire brick structure B schematic diagrames, Fig. 3 of pore creating material containing burning to lose the heavy and light of pore creating material containing burning
Composite refractory brick zigzag faying face schematic shapes, Fig. 5 are containing the heavy and light composite refractory brick sectional view for burning mistake pore creating material.Such as figure
2, it is provided shown in Fig. 3 and Fig. 5, in the present embodiment a kind of resistance to containing the heavy and light composite refractory brick for burning mistake pore creating material, including heavy
Fire bed 1 and lightweight thermal insulation layer 2；The heavy flame retardant coating 1 includes：Fused white corundum 30wt%, electrofused mullite 35wt%, red column
Stone 12wt%, clay 8wt%, alumina powder 6wt%, calcium lignosulfonate 4wt%, yellow starch gum 2wt%, silica flour 3wt%；The light thermal-insulation
Layer 2 includes：Fused white corundum 13wt%, electrofused mullite 25wt%, andalusite 4wt%, clay 9wt%, alumina powder
5wt%, calcium lignosulfonate 6wt%, yellow starch gum 2wt%, silica flour 1wt%；The lightweight thermal insulation layer 2 also includes that the burning of 35wt% loses pore-creating
Agent；The faying face 3 of the heavy flame retardant coating 1 and lightweight thermal insulation layer 2 is zigzag faying face.
The silica flour is metallurgy level-one, silicone content >=98.5%；Granularity≤0.8 μm of the silica flour；The aluminium oxide
The granularity of powder is 20 μm；It is rice husk, grain size≤2.0mm of the rice husk that the burning, which loses pore creating material,；The heavy flame retardant coating 1 and light
Vacuum layer 2 is combined together with tiled configuration, and the thickness proportion of the heavy flame retardant coating 1 and lightweight thermal insulation layer 2 is 2:3.
Embodiment three
Fig. 1 is to lose heavy and light composite fire brick structure A schematic diagrames, Fig. 4 of pore creating material containing burning to lose the heavy and light of pore creating material containing burning
Composite refractory brick concave-convex faying face schematic shapes.A kind of mistake containing burning is provided as shown in Fig. 1 and Fig. 4, in the present embodiment
The heavy and light composite refractory brick of pore creating material, including heavy flame retardant coating 1 and lightweight thermal insulation layer 2；The heavy flame retardant coating 1 includes：Electric smelting
White fused alumina 35wt%, electrofused mullite 16wt%, andalusite 11wt%, clay 15wt%, alumina powder 10wt%, calcium lignosulfonate
6wt%, yellow starch gum 3wt%, silica flour 4wt%；The lightweight thermal insulation layer 2 includes：Fused white corundum 15wt%, electrofused mullite
10wt%, andalusite 8wt%, clay 15wt%, alumina powder 10wt%, calcium lignosulfonate 5wt%, yellow starch gum 3wt%, silica flour 4wt%；
The lightweight thermal insulation layer 2 also includes that the burning of 30wt% loses pore creating material；The faying face 3 of the heavy flame retardant coating 1 and lightweight thermal insulation layer 2
For concave-convex faying face.
The silica flour is metallurgy level-one, silicone content >=98.5%；Granularity≤0.8 μm of the silica flour；The aluminium oxide
The granularity of powder is 15 μm；It is polystyrene spheres, grain size≤2.0mm of the polystyrene spheres that the burning, which loses pore creating material,；It is described heavy
Matter flame retardant coating 1 and lightweight thermal insulation layer 2 are combined together with up-down structure, the thickness of the heavy flame retardant coating 1 and lightweight thermal insulation layer 2
Degree ratio is 2:3.
Example IV
Fig. 2 is to lose heavy and light composite fire brick structure B schematic diagrames, Fig. 4 of pore creating material containing burning to lose the heavy and light of pore creating material containing burning
Composite refractory brick concave-convex faying face schematic shapes.As shown in Figures 2 and 4, a kind of mistake containing burning is provided in the present embodiment
The heavy and light composite refractory brick of pore creating material, including heavy flame retardant coating 1 and lightweight thermal insulation layer 2；The heavy flame retardant coating 1 includes：Electric smelting
White fused alumina 40wt%, electrofused mullite 18wt%, andalusite 25wt%, clay 7wt%, alumina powder 5wt%, calcium lignosulfonate 3wt%,
Yellow starch gum 1wt%, silica flour 1wt%；The lightweight thermal insulation layer 2 includes：Fused white corundum 25wt%, electrofused mullite 20wt%,
Andalusite 5wt%, clay 12wt%, alumina powder 8wt%, calcium lignosulfonate 3wt%, yellow starch gum 1wt%, silica flour 1wt%；The lightweight
Insulating layer 2 also includes that the burning of 25wt% loses pore creating material；The faying face of the heavy flame retardant coating 1 and lightweight thermal insulation layer 2 is concave-convex
Faying face.
The silica flour is metallurgy level-one, silicone content >=98.5%；Granularity≤0.8 μm of the silica flour；The aluminium oxide
The granularity of powder is 12 μm；It is described to burn the mixture for losing that pore creating material is sawdust, rice husk and polystyrene spheres；Described burn loses pore creating material
Grain size≤2.0mm；The heavy flame retardant coating 1 and lightweight thermal insulation layer 2 are combined together with tiled configuration, the heavy flame retardant coating
1 and lightweight thermal insulation layer 2 thickness proportion be 2:3.
Examples 1 to 4 and the comparison of common composite refractory brick break resistance index are as shown in table 1：
Table 1
Note:The refractory brick specification of comparison five types used is identical, is tested under identical condition.
It is by table 1 this it appears that far high containing the heavy and light composite refractory brick Resisting fractre ability for burning mistake pore creating material in embodiment
Fracture strength is also far above common composite refractory brick under common composite refractory brick, especially high temperature operating conditions, makes it in work
As when have excellent Resisting fractre ability, the fracture that can be effectively prevent at faying face.
Embodiment five
A kind of production technology containing the heavy and light composite refractory brick for burning mistake pore creating material, including：Raw material processing-dispensing-is mixed
White silk-molding-drying-firing-inspection-warehousing finished products.
In proportioning process, include the dispensing of the dispensing of heavy flame retardant coating and lightweight thermal insulation layer, heavy flame retardant coating and lightweight
Insulating layer is individually separated carry out dispensing；The heavy flame retardant coating includes：Fused white corundum, electrofused mullite, andalusite, clay,
Alumina powder, calcium lignosulfonate, yellow starch gum, silica flour；The lightweight thermal insulation layer includes：Fused white corundum, electrofused mullite, andalusite, pottery
Soil, alumina powder, calcium lignosulfonate, yellow starch gum, silica flour；The lightweight thermal insulation layer also includes to burn to lose pore creating material；Specific proportioning such as embodiment
Shown in one.
In being kneaded technique, by the heavy flame retardant coating for completing proportioning process and the lightweight thermal insulation layer of proportioning process is completed respectively
Separately it is stirred.
It, will be by being kneaded the heavy flame retardant coating of technique and being suppressed by the lightweight thermal insulation layer of calendering process in moulding process
Integrally, contact surface is formed between heavy flame retardant coating and lightweight thermal insulation layer.
In drying process, the drying process is divided into two stages, and the first stage is demoulding drying, drying temperature 40
DEG C, drying time is for 24 hours；Second stage is force drying, and drying temperature is 80 DEG C, drying time 18h, adobe water after drying
Divide mass content control below 6%.
In firing process, the heavy and light composite refractory brick for completing drying process is packed into high temperature kiln, is heated to from room temperature
1450 DEG C, 8h is kept the temperature, completes firing process, meanwhile, burning mistake pore creating material, which burns to lose, forms a large amount of Minute pores.
The heavy flame retardant coating 1 and lightweight thermal insulation layer 2 are combined together with up-down structure；1 He of heavy flame retardant coating
Once compacting is integral for lightweight thermal insulation layer 2, and pressing pressure 3.2t, compacting number is 6 times.
Embodiment six
A kind of production technology containing the heavy and light composite refractory brick for burning mistake pore creating material, including：Raw material processing-dispensing-is mixed
White silk-molding-drying-firing-inspection-warehousing finished products.
In proportioning process, include the dispensing of the dispensing of heavy flame retardant coating and lightweight thermal insulation layer, heavy flame retardant coating and lightweight
Insulating layer is individually separated carry out dispensing；The heavy flame retardant coating includes：Fused white corundum, electrofused mullite, andalusite, clay,
Alumina powder, calcium lignosulfonate, yellow starch gum, silica flour；The lightweight thermal insulation layer includes：Fused white corundum, electrofused mullite, andalusite, pottery
Soil, alumina powder, calcium lignosulfonate, yellow starch gum, silica flour；The lightweight thermal insulation layer also includes to burn to lose pore creating material；Specific proportioning such as embodiment
Shown in two.
In being kneaded technique, by the heavy flame retardant coating for completing proportioning process and the lightweight thermal insulation layer of proportioning process is completed respectively
Separately it is stirred.
It, will be by being kneaded the heavy flame retardant coating of technique and being suppressed by the lightweight thermal insulation layer of calendering process in moulding process
Integrally, contact surface is formed between heavy flame retardant coating and lightweight thermal insulation layer.
In drying process, the drying process is divided into two stages, and the first stage is demoulding drying, drying temperature 45
DEG C, drying time 20h；Second stage is force drying, and drying temperature is 90 DEG C, drying time 16h, adobe water after drying
Divide mass content control below 6%.
In firing process, the heavy and light composite refractory brick for completing drying process is packed into high temperature kiln, is heated to from room temperature
1500 DEG C, 6h is kept the temperature, completes firing process, meanwhile, burning mistake pore creating material, which burns to lose, forms a large amount of Minute pores.
The heavy flame retardant coating 1 and lightweight thermal insulation layer 2 are combined together with tiled configuration；1 He of heavy flame retardant coating
Once compacting is integral for lightweight thermal insulation layer 2, and pressing pressure 3.6t, compacting number is 4 times.
Embodiment seven
A kind of production technology containing the heavy and light composite refractory brick for burning mistake pore creating material, including：Raw material processing-dispensing-is mixed
White silk-molding-drying-firing-inspection-warehousing finished products.
In proportioning process, include the dispensing of the dispensing of heavy flame retardant coating and lightweight thermal insulation layer, heavy flame retardant coating and lightweight
Insulating layer is individually separated carry out dispensing；The heavy flame retardant coating includes：Fused white corundum, electrofused mullite, andalusite, clay,
Alumina powder, calcium lignosulfonate, yellow starch gum, silica flour；The lightweight thermal insulation layer includes：Fused white corundum, electrofused mullite, andalusite, pottery
Soil, alumina powder, calcium lignosulfonate, yellow starch gum, silica flour；The lightweight thermal insulation layer also includes to burn to lose pore creating material；Specific proportioning such as embodiment
Shown in three.
In being kneaded technique, by the heavy flame retardant coating for completing proportioning process and the lightweight thermal insulation layer of proportioning process is completed respectively
Separately it is stirred.
It, will be by being kneaded the heavy flame retardant coating of technique and being suppressed by the lightweight thermal insulation layer of calendering process in moulding process
Integrally, contact surface is formed between heavy flame retardant coating and lightweight thermal insulation layer.
In drying process, the drying process is divided into two stages, and the first stage is demoulding drying, drying temperature 50
DEG C, drying time 20h；Second stage is force drying, and drying temperature is 100 DEG C, drying time 15h, adobe after drying
Biodiversity content controls below 6%.
In firing process, the heavy and light composite refractory brick for completing drying process is packed into high temperature kiln, is heated to from room temperature
1500 DEG C, 7h is kept the temperature, completes firing process, meanwhile, burning mistake pore creating material, which burns to lose, forms a large amount of Minute pores.
The heavy flame retardant coating 1 and lightweight thermal insulation layer 2 are combined together with up-down structure；1 He of heavy flame retardant coating
Once compacting is integral for lightweight thermal insulation layer 2, and pressing pressure 3.4t, compacting number is 5 times.
The composite fire containing the heavy and light composite refractory brick and common process manufacture for burning mistake pore creating material that embodiment 5~7 manufactures
The comparison of brick break resistance index is as shown in table 2：
Table 2
Note:The refractory brick specification of comparison four types used is identical, is tested under identical condition.
It is by table 2 this it appears that far high containing the heavy and light composite refractory brick Resisting fractre ability for burning mistake pore creating material in embodiment
In the composite refractory brick of common process manufacture, fracture strength is also far above common process manufacture especially under high temperature operating conditions
Composite refractory brick makes it have excellent Resisting fractre ability, the fracture that can be effectively prevent at faying face at work.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (8)
1. a kind of containing the heavy and light composite refractory brick for burning mistake pore creating material, including heavy flame retardant coating（1）And lightweight thermal insulation layer（2）, special
Sign is：The heavy flame retardant coating（1）Including：It is fused white corundum 30wt%~60wt%, electrofused mullite 15wt%~35wt%, red
Pillar 10wt%~25wt%, clay 6wt%~15wt%, alumina powder 4wt%~10wt%, calcium lignosulfonate 3wt%~6wt%, yellow starch gum
1wt%~3wt%, silica flour 1wt%~4wt%；The lightweight thermal insulation layer（2）Including：Fused white corundum 13wt%~35wt%, electric smelting are not
Come stone 9wt%~25wt%, andalusite 4wt%~15wt%, clay 6wt%~15wt%, alumina powder 4wt%~10wt%, calcium lignosulfonate
3wt%~6wt%, it yellow starch gum 1wt%~3wt%, silica flour 1wt%~4wt%, burns and loses pore creating material 25wt%~35wt%；The heavy is resistance to
Fire bed（1）And lightweight thermal insulation layer（2）Faying face（3）It is described for any one in plane faying face or concave-convex faying face
Burn the mixture for losing that pore creating material is one or more of sawdust, rice husk or polystyrene spheres；It is described to burn the grain size for losing pore creating material
≤2.0mm。
2. as described in claim 1 a kind of containing the heavy and light composite refractory brick for burning mistake pore creating material, it is characterised in that：The silica flour is
Metallurgy level-one, silicone content >=98.5%；Granularity≤0.8 μm of the silica flour.
3. as described in claim 1 a kind of containing the heavy and light composite refractory brick for burning mistake pore creating material, it is characterised in that：The aluminium oxide
The granularity of powder is 10~20 μm.
4. as described in claim 1 a kind of containing the heavy and light composite refractory brick for burning mistake pore creating material, it is characterised in that：The heavy is resistance to
Fire bed（1）And lightweight thermal insulation layer（2）It is to be combined together with up-down structure.
5. as described in claim 1 a kind of containing the heavy and light composite refractory brick for burning mistake pore creating material, it is characterised in that：The heavy is resistance to
Fire bed（1）And lightweight thermal insulation layer（2）It is to be combined together with tiled configuration.
6. a kind of containing the heavy and light composite refractory brick for burning mistake pore creating material as described in Claims 1 to 5 any one claim
Production technology, including：Raw material processing-dispensing-kneading-molding-drying-firing-inspection-warehousing finished products, feature exist
In：
A. in proportioning process, include the dispensing of the dispensing of heavy flame retardant coating and lightweight thermal insulation layer, heavy flame retardant coating and light thermal-insulation
Layer is individually separated carry out dispensing；The heavy flame retardant coating includes：Fused white corundum, electrofused mullite, andalusite, clay, oxidation
Aluminium powder, calcium lignosulfonate, yellow starch gum, silica flour；The lightweight thermal insulation layer includes：Fused white corundum, electrofused mullite, andalusite, clay, oxygen
Change aluminium powder, calcium lignosulfonate, yellow starch gum, silica flour；The lightweight thermal insulation layer also includes to burn to lose pore creating material；
B. it is kneaded in technique, the heavy flame retardant coating for completing proportioning process and the lightweight thermal insulation layer for completing proportioning process is individually separated
It is stirred；
It C., will be by being kneaded the heavy flame retardant coating of technique and being pressed into one by the lightweight thermal insulation layer of calendering process in moulding process
Body forms contact surface between heavy flame retardant coating and lightweight thermal insulation layer；
D. in drying process, the drying process is divided into two stages, and the first stage is demoulding drying, and drying temperature is 40~50
DEG C, drying time be 20~for 24 hours；Second stage is force drying, and drying temperature is 80~100 DEG C, drying time is 15~
18h, the control of raw brick moisture content mass content is below 6% after drying；
E. in firing process, the heavy and light composite refractory brick for completing drying process is packed into high temperature kiln, 1450 are heated to from room temperature
~1500 DEG C, 6~8h is kept the temperature, completes firing process, meanwhile, burning mistake pore creating material, which burns to lose, forms a large amount of Minute pores.
7. as claimed in claim 6 a kind of containing the production technology for burning the heavy and light composite refractory brick for losing pore creating material, it is characterised in that：
The heavy flame retardant coating（1）And lightweight thermal insulation layer（2）It is to be combined together with up-down structure.
8. as claimed in claim 6 a kind of containing the production technology for burning the heavy and light composite refractory brick for losing pore creating material, it is characterised in that：
The heavy flame retardant coating（1）And lightweight thermal insulation layer（2）It is to be combined together with tiled configuration.
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| CN108455998A (en) * | 2018-02-28 | 2018-08-28 | 攀钢冶金材料有限责任公司 | A kind of heat preserving wall brick for building and preparation method thereof |
| CN109650854A (en) * | 2018-12-25 | 2019-04-19 | 郑州真金耐火材料有限责任公司 | Corundum-mullite composite brick and preparation method thereof |
| CN109627040A (en) * | 2019-02-27 | 2019-04-16 | 佛山石湾鹰牌陶瓷有限公司 | Lightweight thermal insulation brick |
| CN110054503A (en) * | 2019-04-30 | 2019-07-26 | 浙江琰大新材料有限公司 | A kind of composite refractory lightweight rotary kiln insulating brick |
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| CN103234346A (en) * | 2013-05-10 | 2013-08-07 | 郑州瑞泰耐火科技有限公司 | Low-heat-conduction multi-layer mullite brick and preparation method thereof |
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| CN2073876U (en) * | 1990-07-21 | 1991-03-27 | 崔仁义 | Heavy light far infrared refractory brick |
| CN101492302A (en) * | 2009-01-15 | 2009-07-29 | 范圣良 | Composite brick for shaft kiln and method of producing the same |
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Address after: 313100 forest industrial town concentrated area in Changxing County, Zhejiang Applicant after: Zhejiang Changxin Jiuxin refractory material Polytron Technologies Inc Address before: 313112 Changxing County Huzhou town industrial concentration area, Huzhou, Zhejiang Applicant before: ZHEJIANG CHANGXING JX REFRACTORY MATERIAL CO., LTD. |
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Denomination of invention: A heavy and light composite refractory brick containing loss of ignition pore forming agent Effective date of registration: 20210715 Granted publication date: 20181109 Pledgee: Changxin Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: ZHEJIANG CHANGXING JX & REFRACTORY TECHNOLOGY Co.,Ltd. Registration number: Y2021330000925 |
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