CN105503222B - A kind of composite refractory brick containing floating bead - Google Patents
A kind of composite refractory brick containing floating bead Download PDFInfo
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- CN105503222B CN105503222B CN201610011304.7A CN201610011304A CN105503222B CN 105503222 B CN105503222 B CN 105503222B CN 201610011304 A CN201610011304 A CN 201610011304A CN 105503222 B CN105503222 B CN 105503222B
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3826—Silicon carbides
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/428—Silicon
Abstract
The present invention relates to a kind of composite refractory brick containing floating bead, including heavy flame retardant coating and lightweight thermal insulation layer, the heavy flame retardant coating includes：Fused white corundum 20wt%~50wt%, electrofused mullite 10wt%~30wt%, andalusite 10wt%~25wt%, silicon carbide 10wt%~20wt%, clay 6wt%~15wt%, alumina powder 4wt%~10wt%, calcium lignosulfonate 3wt%~6wt%, yellow starch gum 1wt%~3wt%, silicon powder 1wt%~4wt%；The lightweight thermal insulation layer includes：Fused white corundum 8wt%~30wt%, electrofused mullite 9wt%~25wt%, andalusite 4wt%~15wt%, silicon carbide 10wt%~20wt%, clay 6wt%~15wt%, alumina powder 4wt%~10wt%, calcium lignosulfonate 3wt%~6wt%, yellow starch gum 1wt%~3wt%, silicon powder 1wt%~4wt%；The lightweight thermal insulation layer also includes the floating bead of 15wt%~25wt%.The invention further relates to a kind of production technologies of the composite refractory brick containing floating bead.The present invention overcomes because material composition it is different caused by faying face easy fracture the problem of, a kind of composite refractory brick and its production technology containing floating bead is provided.
Description
Technical field
The present invention relates to fire resisting material field more particularly to a kind of composite refractory bricks containing floating bead.
Background technique
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 efficiency 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 coal of the mark of heat loss.Be transformed using novel heat insulation technology and equipment, make these kilns and
Heat supply pipeline reduce heat loss 20~30% be it is entirely possible, this will make China saves every year mark coal 600~8,000,000 ton.
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 on March 25th, 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, be easy to cause faying face disconnected in use
It splits, is easy to appear accident, the continuous production for being also unfavorable for factory obtains its maximum economic benefit.
Summary of the invention
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 composite refractory brick containing floating bead.
A kind of composite refractory brick containing floating bead, including heavy flame retardant coating and lightweight thermal insulation layer.The material of the heavy flame retardant coating
The main material of material and lightweight thermal insulation layer is completely the same, and the heavy flame retardant coating includes：Fused white corundum 20wt%~50wt%,
Electrofused mullite 10wt%~30wt%, andalusite 10wt%~25wt%, silicon carbide 10wt%~20wt%, clay 6wt%
~15wt%, alumina powder 4wt%~10wt%, calcium lignosulfonate 3wt%~6wt%, yellow starch gum 1wt%~3wt%, silicon powder 1wt%
~4wt%；The lightweight thermal insulation layer mainly includes：Fused white corundum 8wt%~30wt%, electrofused mullite 9wt%~
25wt%, andalusite 4wt%~15wt%, silicon carbide 10wt%~20wt%, clay 6wt%~15wt%, alumina powder
4wt%~10wt%, calcium lignosulfonate 3wt%~6wt%, yellow starch gum 1wt%~3wt%, silicon powder 1wt%~4wt%；The lightweight is protected
Warm layer also includes the floating bead of 15wt%~25wt%；The thickness proportion of the heavy flame retardant coating and lightweight thermal insulation layer is 1~2:3~
4；The faying face of the heavy flame retardant coating and lightweight thermal insulation layer is in plane faying face, zigzag faying face or concave-convex faying face
Any one.
As an improvement, the silicon powder is metallurgical level-one, silicone content >=98.5%；Granularity≤0.8 μm of the silicon powder.
As an improvement, the granularity of the alumina powder is 10~20 μm.
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 a kind of composite refractory bricks containing floating bead, due to its heavy flame retardant coating and common heavy fire resisting
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 composite refractory bricks containing floating bead, due to joined floating bead in its lightweight thermal insulation layer, and
Floating bead thermal conductivity is low and belongs to hollow sphere, so that lightweight thermal insulation layer thermal conductivity substantially reduces, has the excellent of common insulating layer heat preservation
Point, while using floating bead as pore creating material compared with commonly burning mistake pore creating material, it can solve during commonly burning mistake pore creating material burning mistake
Because of the pollution problem of not exclusively combustion baked generation.
(3) the present invention provides a kind of composite refractory brick containing floating bead, due to wherein joined silicon carbide, and silicon carbide
Infrared radiation property is superior, so that the principle that composite refractory brick can use infrared radiation under high-temperature work environment is more effective
And uniformly the heated material in kiln is heated, while the received heat of composite refractory brick can be reduced；Composite refractory brick
In silicon powder can be used as reducing agent silicon carbide effectively avoided to decompose under high temperature and oxidation environment, reduce its infrared emissivity
Energy.
(4) the present invention provides a kind of composite refractory bricks containing floating bead, due to its heavy flame retardant coating and lightweight thermal insulation layer master
Want composite material consistent, Thermal Contraction Coefficient is close, so that the stress between two layer components becomes very little under working condition, knot
Conjunction face is firmly combined the problem of being less prone to faying face fracture.
(5) the present invention provides a kind of composite refractory bricks containing floating bead, since it is provided simultaneously with heat-insulated and heat preservation effect,
So that only needing one layer of masonry when using and constructing, time and the expense of construction are reduced, material and resource are also saved,
Discharge is reduced, while the accumulation of heat and radiation loss of Industrial Stoves can also be further decreased.
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 production technology of composite refractory brick containing floating bead.
A kind of production technology of the composite refractory brick containing floating bead, including：Raw material processing-ingredient-kneading-molding-is dry
Dry-firing-inspection-warehousing finished products, it is characterised in that：
A. in proportioning process, the ingredient of ingredient and lightweight thermal insulation layer including heavy flame retardant coating, heavy flame retardant coating and lightweight
Insulating layer is individually separated carry out ingredient；The heavy flame retardant coating includes：Fused white corundum, electrofused mullite, andalusite, carbonization
Silicon, clay, alumina powder, calcium lignosulfonate, yellow starch gum, silicon powder；The lightweight thermal insulation layer includes：It is fused white corundum, electrofused mullite, red
Pillar, silicon carbide, clay, alumina powder, calcium lignosulfonate, yellow starch gum, silicon powder；The lightweight thermal insulation layer also includes floating bead；
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；
C. it in moulding process, is suppressed by the heavy flame retardant coating by being kneaded technique and by the lightweight thermal insulation layer of calendering 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 55
DEG C, drying time 18h；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%；
E. in firing process, the composite refractory brick for completing drying process is packed into high temperature kiln, is heated to 1500 from room temperature
DEG C, 8h is kept the temperature, firing process is completed.
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, the heavy flame retardant coating and lightweight thermal insulation layer are once suppressed integrally, 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 production technology of composite refractory brick containing floating bead, 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.
Simultaneously as joined floating bead in its lightweight thermal insulation layer, and floating bead thermal conductivity is low and belongs to hollow sphere, so that lightweight thermal insulation layer is led
Heating rate substantially reduces, and has the advantages of common insulating layer heat preservation, while losing pore creating material phase with common burn using floating bead as pore creating material
Than can solve the common pollution problem burnt during mistake pore creating material burning is lost because of not exclusively combustion baked generation.In this way, utilizing described one
The composite refractory brick containing floating bead that the production technology of composite refractory brick of the kind containing floating bead is manufactured is provided simultaneously with heat-insulated and heat preservation
Effect reduce time and the expense of construction so that only needing one layer of masonry when using and constructing, also save material
And resource, discharge is reduced, while the accumulation of heat and radiation loss of Industrial Stoves can also be further decreased.
(2) the present invention provides a kind of production technologies of composite refractory brick containing floating bead, due to its heavy flame retardant coating and gently
Vacuum layer basis material is consistent, keeps its Thermal Contraction Coefficient close, so that the stress under working condition, between two layer components
Become very little, faying face is firmly combined the problem of being less prone to faying face fracture.
(3) the present invention provides a kind of production technologies of composite refractory brick containing floating bead, due to drying process in the present invention
It is dried using two stages, first demoulds drying, this stage raw brick moisture content is big, need to control drying temperature, prevents moisture sharply
It is discharged and causes adobe cracked；Then force drying, control green body moisture reach requirement, to guarantee the matter of product after being sintered
Amount.Demoulding the dry time simultaneously is 18h, so that faying face can use the infiltration and expansion between this period of time progress molecule
It dissipates to further strengthen the bond strength of faying face.
Detailed description of the invention
Illustrate technical solution 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, it can also be obtained according to these attached drawings other accompanying drawings.
Fig. 1 is the composite fire brick structure A schematic diagram containing floating bead.
Fig. 2 is the composite fire brick structure B schematic diagram containing floating bead.
Fig. 3 is the composite refractory brick zigzag faying face schematic shapes containing floating bead.
Fig. 4 is the composite refractory brick concave-convex faying face schematic shapes containing floating bead.
Fig. 5 is the composite refractory brick cross-sectional view containing floating bead.
Label declaration：
1. heavy flame retardant coating, 2. lightweight thermal insulation layers, 3. faying faces.
Specific embodiment
Technical solution of the present invention is clearly and completely illustrated with reference to the accompanying drawing.
Embodiment one
Fig. 1 is the composite fire brick structure A schematic diagram containing floating bead.Contain as shown in Figure 1, providing one kind in the present embodiment
The composite refractory brick of floating bead, including heavy flame retardant coating 1 and lightweight thermal insulation layer 2；The heavy flame retardant coating 1 includes：Fused white corundum
50wt%, electrofused mullite 15wt%, andalusite 10wt%, silicon carbide 10wt%, clay 6wt%, alumina powder 4wt%, wood
Calcium 3wt%, yellow starch gum 1wt%, silicon powder 1wt%；The lightweight thermal insulation layer 2 includes：Fused white corundum 30wt%, electrofused mullite
9wt%, andalusite 15wt%, silicon carbide 15wt%, clay 6wt%, alumina powder 4wt%, calcium lignosulfonate 3wt%, yellow starch gum
1wt%, silicon powder 2wt%；The lightweight thermal insulation layer 2 also includes the floating bead of 15wt%.
The silicon powder is metallurgical level-one, silicone content >=98.5%；Granularity≤0.8 μm of the silicon powder；The aluminium oxide
The granularity of powder is 10 μm；The heavy flame retardant coating 1 and lightweight thermal insulation layer 2 are combined together with up-down structure, and the heavy is resistance to
The faying face 3 of fire bed 1 and lightweight thermal insulation layer 2 is plane faying face, the thickness ratio of the heavy flame retardant coating 1 and lightweight thermal insulation layer 2
Example is 2:3.
Embodiment two
Fig. 2 is that composite fire brick structure B schematic diagram, Fig. 3 containing floating bead are that the composite refractory brick zigzag containing floating bead combines
Face schematic shapes, Fig. 5 are the composite refractory brick cross-sectional view containing floating bead.As shown in Fig. 2, Fig. 3 and Fig. 5, provided in the present embodiment
Be a kind of composite refractory brick containing floating bead, including heavy flame retardant coating 1 and lightweight thermal insulation layer 2；The heavy flame retardant coating 1 and lightweight
The faying face 3 of insulating layer 2 is zigzag faying face；The heavy flame retardant coating 1 includes：Fused white corundum 20wt%, electric smelting do not come
Stone 30wt%, andalusite 12wt%, silicon carbide 15wt%, clay 8wt%, alumina powder 6wt%, calcium lignosulfonate 4wt%, yellow starch gum
2wt%, silicon powder 3wt%；The lightweight thermal insulation layer 2 includes：Fused white corundum 8wt%, electrofused mullite 25wt%, andalusite
4wt%, silicon carbide 15wt%, clay 9wt%, alumina powder 5wt%, calcium lignosulfonate 6wt%, yellow starch gum 2wt%, silicon powder 1wt%；Institute
Lightweight thermal insulation layer 2 is stated also comprising the floating bead of 25wt%.
The silicon powder is metallurgical level-one, silicone content >=98.5%；Granularity≤0.8 μm of the silicon powder；The aluminium oxide
The granularity of powder is 20 μm；The heavy flame retardant coating 1 and lightweight thermal insulation layer 2 are combined together with tiled configuration, and the heavy is resistance to
The thickness proportion of fire bed 1 and lightweight thermal insulation layer 2 is 1:4.
Embodiment three
Fig. 1 is that composite fire brick structure A schematic diagram, Fig. 4 containing floating bead are that the composite refractory brick concave-convex containing floating bead combines
Face schematic shapes.A kind of composite refractory brick containing floating bead, including heavy are provided as shown in Fig. 1 and Fig. 4, in the present embodiment
Flame retardant coating 1 and lightweight thermal insulation layer 2；The faying face 3 of the heavy flame retardant coating 1 and lightweight thermal insulation layer 2 is concave-convex faying face；It is described
Heavy flame retardant coating 1 includes：Fused white corundum 30wt%, electrofused mullite 11wt%, andalusite 11wt%, silicon carbide 10wt%,
Clay 15wt%, alumina powder 10wt%, calcium lignosulfonate 6wt%, yellow starch gum 3wt%, silicon powder 4wt%；The lightweight thermal insulation layer 2 wraps
It includes：Fused white corundum 10wt%, electrofused mullite 10wt%, andalusite 8wt%, silicon carbide 20wt%, clay 15wt%, oxidation
Aluminium powder 10wt%, calcium lignosulfonate 5wt%, yellow starch gum 3wt%, silicon powder 4wt%；The lightweight thermal insulation layer 2 also includes the floating bead of 15wt%.
The silicon powder is metallurgical level-one, silicone content >=98.5%；Granularity≤0.8 μm of the silicon powder；The aluminium oxide
The granularity of powder is 15 μm；The heavy flame retardant coating 1 and lightweight thermal insulation layer 2 are combined together with up-down structure, and the heavy is resistance to
The thickness proportion of fire bed 1 and lightweight thermal insulation layer 2 is 1:3.
Example IV
Fig. 2 is that composite fire brick structure B schematic diagram, Fig. 4 containing floating bead are that the composite refractory brick concave-convex containing floating bead combines
Face schematic shapes.As shown in Figures 2 and 4, a kind of composite refractory brick containing floating bead, including heavy are provided in the present embodiment
Flame retardant coating 1 and lightweight thermal insulation layer 2；The faying face 3 of the heavy flame retardant coating 1 and lightweight thermal insulation layer 2 is concave-convex faying face；It is described
Heavy flame retardant coating 1 includes：Fused white corundum 28wt%, electrofused mullite 10wt%, andalusite 25wt%, silicon carbide 20wt%,
Clay 7wt%, alumina powder 5wt%, calcium lignosulfonate 3wt%, yellow starch gum 1wt%, silicon powder 1wt%；The lightweight thermal insulation layer 2 includes：
Fused white corundum 20wt%, electrofused mullite 20wt%, andalusite 5wt%, silicon carbide 10wt%, clay 12wt%, aluminium oxide
Powder 8wt%, calcium lignosulfonate 3wt%, yellow starch gum 1wt%, silicon powder 1wt%；The lightweight thermal insulation layer 2 also includes the floating bead of 20wt%.
The silicon powder is metallurgical level-one, silicone content >=98.5%；Granularity≤0.8 μm of the silicon powder；The aluminium oxide
The granularity of powder is 12 μm；The heavy flame retardant coating 1 and lightweight thermal insulation layer 2 are combined together with tiled configuration, and the heavy is resistance to
The thickness proportion of fire bed 1 and lightweight thermal insulation layer 2 is 1:2.
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 for comparing five seed types used is identical, is tested under identical condition.
By table 1 this it appears that the composite refractory brick Resisting fractre ability containing floating bead in embodiment is compound much higher than common
Breaking strength is also much higher than common composite refractory brick under refractory brick, especially high temperature operating conditions, has it at work excellent
Good Resisting fractre ability, can be effectively prevented the fracture at faying face.
Embodiment five
A kind of production technology of the composite refractory brick containing floating bead, including：Raw material processing-ingredient-kneading-molding-is dry
Dry-firing-inspection-warehousing finished products.
In proportioning process, the ingredient of ingredient and lightweight thermal insulation layer including heavy flame retardant coating, heavy flame retardant coating and lightweight
Insulating layer is individually separated carry out ingredient；The heavy flame retardant coating includes：Fused white corundum, electrofused mullite, andalusite, carbonization
Silicon, clay, alumina powder, calcium lignosulfonate, yellow starch gum, silicon powder；The lightweight thermal insulation layer includes：It is fused white corundum, electrofused mullite, red
Pillar, silicon carbide, clay, alumina powder, calcium lignosulfonate, yellow starch gum, silicon powder；The lightweight thermal insulation layer also includes floating bead；Specific proportion
As shown in embodiment 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；
In moulding process, suppressed by the heavy flame retardant coating by being kneaded technique and by the lightweight thermal insulation layer of calendering 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 55
DEG C, drying time 18h；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 composite refractory brick for completing drying process is packed into high temperature kiln, is heated to 1500 from room temperature
DEG C, 8h is kept the temperature, firing process is completed.
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 of the composite refractory brick containing floating bead, including：Raw material processing-ingredient-kneading-molding-is dry
Dry-firing-inspection-warehousing finished products.
In proportioning process, the ingredient of ingredient and lightweight thermal insulation layer including heavy flame retardant coating, heavy flame retardant coating and lightweight
Insulating layer is individually separated carry out ingredient；The heavy flame retardant coating includes：Fused white corundum, electrofused mullite, andalusite, carbonization
Silicon, clay, alumina powder, calcium lignosulfonate, yellow starch gum, silicon powder；The lightweight thermal insulation layer includes：It is fused white corundum, electrofused mullite, red
Pillar, silicon carbide, clay, alumina powder, calcium lignosulfonate, yellow starch gum, silicon powder；The lightweight thermal insulation layer also includes floating bead；Specific proportion
As shown in embodiment 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；
In moulding process, suppressed by the heavy flame retardant coating by being kneaded technique and by the lightweight thermal insulation layer of calendering 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 55
DEG C, drying time 18h；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 composite refractory brick for completing drying process is packed into high temperature kiln, is heated to 1500 from room temperature
DEG C, 8h is kept the temperature, firing process is completed.
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 of the composite refractory brick containing floating bead, including：Raw material processing-ingredient-kneading-molding-is dry
Dry-firing-inspection-warehousing finished products.
In proportioning process, the ingredient of ingredient and lightweight thermal insulation layer including heavy flame retardant coating, heavy flame retardant coating and lightweight
Insulating layer is individually separated carry out ingredient；The heavy flame retardant coating includes：Fused white corundum, electrofused mullite, andalusite, carbonization
Silicon, clay, alumina powder, calcium lignosulfonate, yellow starch gum, silicon powder；The lightweight thermal insulation layer includes：It is fused white corundum, electrofused mullite, red
Pillar, silicon carbide, clay, alumina powder, calcium lignosulfonate, yellow starch gum, silicon powder；The lightweight thermal insulation layer also includes floating bead；Specific proportion
As shown in embodiment 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；
In moulding process, suppressed by the heavy flame retardant coating by being kneaded technique and by the lightweight thermal insulation layer of calendering 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 55
DEG C, drying time 18h；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 composite refractory brick for completing drying process is packed into high temperature kiln, is heated to 1500 from room temperature
DEG C, 8h is kept the temperature, firing process is completed.
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 refractory brick resistance to fracture of the composite refractory brick containing floating bead and common process manufacture that embodiment 5~7 manufactures
Energy index comparison is as shown in table 2：
Table 2
Note:The refractory brick specification for comparing four seed types used is identical, is tested under identical condition.
By table 2 this it appears that the composite refractory brick Resisting fractre ability containing floating bead in embodiment is much higher than common process
Breaking strength is also much higher than the composite fire of common process manufacture under the composite refractory brick of manufacture, especially high temperature operating conditions
Brick makes it have excellent Resisting fractre ability at work, the fracture at faying face can be effectively prevented.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
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 composite refractory brick containing floating bead, including heavy flame retardant coating (1) and lightweight thermal insulation layer (2), it is characterised in that：It is described
Heavy flame retardant coating (1) is by following weight percent at being grouped as：Fused white corundum 20wt%~50wt%, electrofused mullite
10wt%~30wt%, andalusite 10wt%~25wt%, silicon carbide 10wt%~20wt%, clay 6wt%~15wt%, oxygen
Change aluminium powder 4wt%~10wt%, calcium lignosulfonate 3wt%~6wt%, yellow starch gum 1wt%~3wt%, silicon powder 1wt%~4wt%；It is described
Lightweight thermal insulation layer (2) is by following weight percent at being grouped as：Fused white corundum 8wt%~30wt%, electrofused mullite
9wt%~25wt%, andalusite 4wt%~15wt%, silicon carbide 10wt%~20wt%, clay 6wt%~15wt%, oxidation
Aluminium powder 4wt%~10wt%, calcium lignosulfonate 3wt%~6wt%, yellow starch gum 1wt%~3wt%, silicon powder 1wt%~4wt% and floating bead
15wt%~25wt%；The thickness proportion of the heavy flame retardant coating (1) and lightweight thermal insulation layer (2) is 1~2:3~4；The heavy
The faying face (3) of flame retardant coating (1) and lightweight thermal insulation layer (2) is any one in plane faying face or concave-convex faying face.
2. a kind of composite refractory brick containing floating bead as described in claim 1, it is characterised in that：The silicon powder is metallurgical with one
Grade, silicone content >=98.5%；Granularity≤0.8 μm of the silicon powder.
3. a kind of composite refractory brick containing floating bead as described in claim 1, it is characterised in that：The granularity of the alumina powder is
10~20 μm.
4. a kind of composite refractory brick containing floating bead as described in claim 1, it is characterised in that：The heavy flame retardant coating (1) and
Lightweight thermal insulation layer (2) is combined together with up-down structure.
5. a kind of composite refractory brick containing floating bead as described in claim 1, it is characterised in that：The heavy flame retardant coating (1) and
Lightweight thermal insulation layer (2) is combined together with tiled configuration.
6. a kind of production technology of composite refractory brick containing floating bead as described in Claims 1 to 5 any one claim, packet
It includes：Raw material processing-ingredient-kneading-molding-drying-firing-inspection-warehousing finished products, it is characterised in that：
A. in proportioning process, the ingredient of ingredient and lightweight thermal insulation layer including heavy flame retardant coating, heavy flame retardant coating and light thermal-insulation
Layer is individually separated carry out ingredient；The heavy flame retardant coating includes：Fused white corundum, electrofused mullite, andalusite, silicon carbide, pottery
Soil, alumina powder, calcium lignosulfonate, yellow starch gum, silicon powder；The lightweight thermal insulation layer includes：Fused white corundum, electrofused mullite, andalusite,
Silicon carbide, clay, alumina powder, calcium lignosulfonate, yellow starch gum, silicon powder；The lightweight thermal insulation layer also includes floating bead；
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；
C. in moulding process, one is pressed by the heavy flame retardant coating by being kneaded technique and by the lightweight thermal insulation layer of calendering 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 55 DEG C,
Drying time is 18h；Second stage is force drying, and drying temperature is 90 DEG C, drying time 16h, raw brick moisture content after drying
Mass content controls below 6%；
E. in firing process, the composite refractory brick for completing drying process is packed into high temperature kiln, 1500 DEG C is heated to from room temperature, protects
Warm 8h completes firing process.
7. a kind of production technology of the composite refractory brick containing floating bead as claimed in claim 6, it is characterised in that：The heavy is resistance to
Fire bed (1) and lightweight thermal insulation layer (2) are combined together with up-down structure.
8. a kind of production technology of the composite refractory brick containing floating bead as claimed in claim 6, it is characterised in that：The heavy is resistance to
Fire bed (1) and lightweight thermal insulation layer (2) are combined together with tiled configuration.
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| CN101875556B (en) * | 2009-10-16 | 2012-07-04 | 北京工业大学 | Light ceramic tiles and manufacturing process thereof |
| CN103204691B (en) * | 2013-05-07 | 2014-07-02 | 郑州中本窑炉材料有限公司 | Low-heat conductance silicon corundum brick material and silicon corundum composite brick made of same |
| CN103234346B (en) * | 2013-05-10 | 2015-01-07 | 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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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 composite refractory brick containing floating beads Effective date of registration: 20210715 Granted publication date: 20181127 Pledgee: Changxin Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: ZHEJIANG CHANGXING JX & REFRACTORY TECHNOLOGY Co.,Ltd. Registration number: Y2021330000925 |