CN105732084B - A kind of composite refractory brick losing pore creating material containing burning - Google Patents
A kind of composite refractory brick losing pore creating material containing burning Download PDFInfo
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- CN105732084B CN105732084B CN201610015358.0A CN201610015358A CN105732084B CN 105732084 B CN105732084 B CN 105732084B CN 201610015358 A CN201610015358 A CN 201610015358A CN 105732084 B CN105732084 B CN 105732084B
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
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- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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Abstract
Include containing the composite refractory brick for burning mistake pore creating material, including heavy flame retardant coating and lightweight thermal insulation layer, the lightweight thermal insulation layer the present invention relates to a kind of：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 that the burning of 15wt%~25wt% loses pore creating material.The invention further relates to a kind of production technologies containing the composite refractory brick for burning mistake pore creating material.The present invention overcomes because material composition it is different caused by faying face easy fracture the problem of, provide a kind of containing burning the composite refractory brick and its production technology for losing pore creating material.
Description
Technical field
The present invention relates to fire resisting material field more particularly to a kind of composite refractory bricks that pore creating material is lost containing burning.
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 containing the composite refractory brick for burning mistake pore creating material.
A kind of composite refractory brick losing pore creating material containing burning, including heavy flame retardant coating and lightweight thermal insulation layer.The heavy fire resisting
The material of layer and the main material of lightweight thermal insulation layer are 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%, pottery
Native 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 that the burning of 15wt%~25wt% loses pore creating material；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 plane faying face, zigzag faying face or concave-convex
Any one in faying face.
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, 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 partial size≤3.0mm 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 a kind of containing the composite refractory brick for losing pore creating material is burnt, due to its heavy flame retardant coating and common weight
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 composite refractory brick for losing pore creating material is burnt, due to what is be added in its lightweight thermal insulation layer
Mistake can be burnt when temperature is higher than 1000 degrees Celsius by burning mistake pore creating material, and firing temperature is remote in composite refractory brick sintering process
Higher than 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
It substantially reduces, has the advantages of common insulating layer heat preservation.
(3) the present invention provides a kind of containing the composite refractory brick for losing pore creating material is burnt, due to wherein joined silicon carbide, and carbon
The infrared radiation property of SiClx is superior, so that composite refractory brick can use the principle of infrared radiation under high-temperature work environment
More effectively and uniformly the heated material in kiln is heated, while the received heat of composite refractory brick can be reduced；It is compound
Silicon powder in refractory brick can be used as reducing agent and silicon carbide effectively avoided to decompose under high temperature and oxidation environment, reduce its infrared spoke
Penetrate performance.
(4) the present invention provides a kind of containing the composite refractory brick for losing pore creating material is burnt, since its heavy flame retardant coating and lightweight are protected
Warm 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 materials at two layers
Identical, Thermal Contraction Coefficient is more close, so that the stress between two layer components becomes very little under working condition, in conjunction with
Face is firmly combined the problem of being less prone to faying face fracture.
(5) the present invention provides a kind of containing the composite refractory brick for losing pore creating material is burnt, since it 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.
(6) the present invention provides a kind of containing the composite refractory brick for losing pore creating material is burnt, and loses pore creating material due to joined to burn, relatively
15% cost can be reduced in 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 production technology containing the composite refractory brick for burning mistake pore creating material.
A kind of production technology containing the composite refractory brick for burning mistake pore creating material, including：Raw material processing-ingredient-kneading-at
Type-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 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 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；
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 45
DEG C, drying time 22h；Second stage is force drying, and drying temperature is 110 DEG C, drying time 14h, adobe after drying
Biodiversity content controls 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, 7h is kept the temperature, firing process is completed, 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, 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 containing the production technology for losing the composite refractory brick of pore creating material is burnt, due to its heavy fire resisting
Layer and common heavy refractory brick similar performance have common heavy refractory brick resistance to erosion, high temperature resistant, corrosion-resistant and heat shock resistance
Advantage.Simultaneously as the burning being added in its lightweight thermal insulation layer, which loses pore creating material, can burn mistake when temperature is higher than 1000 degrees Celsius, and
Firing temperature is much higher than 1000 degrees Celsius in composite refractory brick sintering process, so in the lightweight thermal insulation layer by
In there are a large amount of small stomatas, so that its heating conduction substantially reduces, has the advantages of common insulating layer heat preservation.In this way, sharp
With a kind of composite fire containing the pore creating material of mistake containing burning for burning the production technology manufacturing for losing the composite refractory brick of pore creating material
Brick is provided simultaneously with heat-insulated and heat preservation effect so that only need one layer of masonry when using and constructing, reduce construction when
Between and expense, also save material and resource, reduce discharge, at the same can also further decrease Industrial Stoves accumulation of heat and dissipate
Heat loss.
(2) the present invention provides a kind of containing the production technology for losing the composite refractory brick of pore creating material is burnt, due to its heavy fire resisting
Layer is consistent with lightweight thermal insulation layer basis material, keeps its Thermal Contraction Coefficient close, and after firing process, burns and loses pore creating material
It burning and loses so that materials at two layers is identical, Thermal Contraction Coefficient is more close, so that under working condition, answering between two layer components
Power becomes very little, and faying face is firmly combined the problem of being less prone to faying face fracture.
(3) the present invention provides a kind of containing the production technology for losing the composite refractory brick of pore creating material is burnt, and loses due to joined to burn
Pore creating material can reduce by 15% cost relative to common same material heavy refractory brick.
(4) the present invention provides a kind of containing the production technology for losing the composite refractory brick of pore creating material is burnt, due to doing in the present invention
Drying process is dried using two stages, first demoulds drying, this stage raw brick moisture content is big, need to control drying temperature, prevent water
Divide and be sharply discharged and cause adobe cracked, then force drying, control green body moisture reaches requirement, to guarantee to produce after being sintered
The quality of product.Demoulding the dry time simultaneously is 22h, so that faying face can use the infiltration between this period of time progress molecule
Thoroughly and spread 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 containing the composite fire brick structure A schematic diagram for burning mistake pore creating material.
Fig. 2 is containing the composite fire brick structure B schematic diagram for burning mistake pore creating material.
Fig. 3 is containing the composite refractory brick zigzag faying face schematic shapes for burning mistake pore creating material.
Fig. 4 is containing the composite refractory brick concave-convex faying face schematic shapes for burning mistake pore creating material.
Fig. 5 is containing the composite refractory brick cross-sectional view for burning mistake pore creating material.
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 containing the composite fire brick structure A schematic diagram for burning mistake pore creating material.As shown in Figure 1, being provided in the present embodiment
A kind of composite refractory brick losing pore creating material containing burning, including heavy flame retardant coating 1 and lightweight thermal insulation layer 2；The heavy flame retardant coating 1 wraps
It includes：Fused white corundum 50wt%, electrofused mullite 15wt%, andalusite 10wt%, silicon carbide 10wt%, clay 6wt%, oxidation
Aluminium powder 4wt%, calcium lignosulfonate 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 burning comprising 15wt% loses pore creating material.
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；It is sawdust, partial size≤3.0mm 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 faying face 3 of the heavy flame retardant coating 1 and lightweight thermal insulation layer 2 is planar junction
The thickness proportion of conjunction face, the heavy flame retardant coating 1 and lightweight thermal insulation layer 2 is 2:3.
Embodiment two
Fig. 2 is the composite fire containing the composite fire brick structure B schematic diagram for losing pore creating material, Fig. 3 is burnt to lose pore creating material containing burning
Brick zigzag faying face schematic shapes, Fig. 5 are containing the composite refractory brick cross-sectional view for burning mistake pore creating material.Such as Fig. 2, Fig. 3 and Fig. 5 institute
Show, is provided in the present embodiment a kind of containing the composite refractory brick for burning mistake pore creating material, including heavy 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 zigzag faying face；The heavy flame retardant coating 1 includes：Electricity
Molten white fused alumina 20wt%, electrofused mullite 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%, electricity
Molten mullite 25wt%, andalusite 4wt%, silicon carbide 15wt%, clay 9wt%, alumina powder 5wt%, calcium lignosulfonate 6wt%, Huang
Dextrin 2wt%, silicon powder 1wt%；The lightweight thermal insulation layer 2 also burning comprising 25wt% loses pore creating material.
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；It is rice husk, partial size≤3.0mm 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 1:4.
Embodiment three
Fig. 1 is the composite fire containing the composite fire brick structure A schematic diagram for losing pore creating material, Fig. 4 is burnt to lose pore creating material containing burning
Brick concave-convex faying face schematic shapes.It provides as shown in Fig. 1 and Fig. 4, in the present embodiment and a kind of to lose pore creating material containing burning
Composite refractory brick, including heavy 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
For concave-convex faying face；The 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 includes：Fused white corundum 10wt%, electrofused mullite 10wt%, andalusite 8wt%, carbonization
Silicon 20wt%, clay 15wt%, alumina powder 10wt%, calcium lignosulfonate 5wt%, yellow starch gum 3wt%, silicon powder 4wt%；The lightweight is protected
The warm layer 2 also burning comprising 15wt% loses pore creating material.
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；It is polystyrene spheres, partial size≤3.0mm 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 1:3.
Example IV
Fig. 2 is the composite fire containing the composite fire brick structure B schematic diagram for losing pore creating material, Fig. 4 is burnt to lose pore creating material containing burning
Brick concave-convex faying face schematic shapes.As shown in Figures 2 and 4, it is provided in the present embodiment and a kind of to lose pore creating material containing burning
Composite refractory brick, including heavy 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
For concave-convex faying face；The 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%, alumina powder 8wt%, calcium lignosulfonate 3wt%, yellow starch gum 1wt%, silicon powder 1wt%；The light thermal-insulation
The also burning comprising 20wt% of layer 2 loses pore creating material.
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；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
Partial size≤3.0mm；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 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 being much higher than in embodiment containing the composite refractory brick Resisting fractre ability for burning mistake pore creating material is general
Breaking strength is also much higher than common composite refractory brick under logical composite refractory brick, especially high temperature operating conditions, makes it at work
Have excellent Resisting fractre ability, the fracture at faying face can be effectively prevented.
Embodiment five
A kind of production technology containing the composite refractory brick for burning mistake pore creating material, including：Raw material processing-ingredient-kneading-at
Type-drying-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 to burn to lose pore creating material；Tool
Body is matched 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 45
DEG C, drying time 22h；Second stage is force drying, and drying temperature is 110 DEG C, drying time 14h, adobe after drying
Biodiversity content controls 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, 7h is kept the temperature, firing process is completed, 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 composite refractory brick for burning mistake pore creating material, including：Raw material processing-ingredient-kneading-at
Type-drying-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 to burn to lose pore creating material；Tool
Body is matched 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 45
DEG C, drying time 22h；Second stage is force drying, and drying temperature is 110 DEG C, drying time 14h, adobe after drying
Biodiversity content controls 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, 7h is kept the temperature, firing process is completed, 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 composite refractory brick for burning mistake pore creating material, including：Raw material processing-ingredient-kneading-at
Type-drying-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 to burn to lose pore creating material；Tool
Body is matched 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 45
DEG C, drying time 22h；Second stage is force drying, and drying temperature is 110 DEG C, drying time 14h, adobe after drying
Biodiversity content controls 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, 7h is kept the temperature, firing process is completed, 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.
Embodiment 5~7 manufactures anti-containing the composite refractory brick for burning the composite refractory brick for losing pore creating material and common process manufacture
The comparison of fracture property index 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 being much higher than in embodiment containing the composite refractory brick Resisting fractre ability for burning mistake pore creating material is general
The composite refractory brick of logical technique manufacture, breaking strength is also much higher than the compound of common process manufacture especially under high temperature operating conditions
Refractory 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 containing the composite refractory brick for losing pore creating material, including heavy flame retardant coating (1) and lightweight thermal insulation layer (2) is burnt, feature exists
In：The heavy flame retardant coating (1) consists of the following compositions：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 is protected
Warm layer (2) consists of the following compositions：Fused white corundum 8wt%~30wt%, electrofused mullite 9wt%~25wt%, andalusite
4wt%~15wt%, silicon carbide 10wt%~20wt%, clay 6wt%~15wt%, alumina powder 4wt%~10wt%, wood
Calcium 3wt%~6wt%, it yellow starch gum 1wt%~3wt%, silicon powder 1wt%~4wt%, burns and loses pore creating material 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 flame retardant coating (1) and lightweight
The faying face (3) of insulating layer (2) is any one in plane faying face or concave-convex faying face；It is wood that the burning, which loses pore creating material,
The mixture of one or more of bits, rice husk or polystyrene spheres；It is described to burn the partial size≤3.0mm for losing pore creating material.
2. as described in claim 1 a kind of containing the composite refractory brick for burning mistake pore creating material, it is characterised in that：The silicon powder is metallurgy
With level-one, silicone content >=98.5%；Granularity≤0.8 μm of the silicon powder.
3. as described in claim 1 a kind of containing the composite refractory brick for burning mistake pore creating material, it is characterised in that：The alumina powder
Granularity is 10~20 μm.
4. as described in claim 1 a kind of containing the composite refractory brick for burning mistake pore creating material, 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. as described in claim 1 a kind of containing the composite refractory brick for burning mistake pore creating material, 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 containing the composite refractory brick for burning mistake pore creating material as described in Claims 1 to 5 any one claim
Technique, including：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 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；
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 45 DEG C,
Drying time is 22h；Second stage is force drying, and drying temperature is 110 DEG C, drying time 14h, 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 7h completes firing process, meanwhile, it burns mistake pore creating material burning mistake and forms a large amount of Minute pores.
7. a kind of production technology containing the composite refractory brick for burning mistake pore creating material as claimed in claim 6, it is characterised in that：It is described
Heavy flame retardant coating (1) and lightweight thermal insulation layer (2) are combined together with up-down structure.
8. a kind of production technology containing the composite refractory brick for burning mistake pore creating material as claimed in claim 6, it is characterised in that：It is described
Heavy flame retardant coating (1) and lightweight thermal insulation layer (2) are combined together with tiled configuration.
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| 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 |
| CN110452005A (en) * | 2019-09-06 | 2019-11-15 | 郑州瑞泰耐火科技有限公司 | A kind of preparation method of low heat conductivity energy-saving mullite brick |
| CN115893996A (en) * | 2023-02-07 | 2023-04-04 | 锦州长城耐火材料有限公司 | Aluminum-chromium composite brick and preparation process thereof |
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| 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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| 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 lepton long-range 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 |
| CN101875556A (en) * | 2009-10-16 | 2010-11-03 | 北京工业大学 | Light ceramic tiles and manufacturing process 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 loss of ignition pore forming agent 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 |