CN201330277Y - Lining structure of liquid aluminum pack - Google Patents
Lining structure of liquid aluminum pack Download PDFInfo
- Publication number
- CN201330277Y CN201330277Y CNU2009200880646U CN200920088064U CN201330277Y CN 201330277 Y CN201330277 Y CN 201330277Y CN U2009200880646 U CNU2009200880646 U CN U2009200880646U CN 200920088064 U CN200920088064 U CN 200920088064U CN 201330277 Y CN201330277 Y CN 201330277Y
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- aluminium liquid
- refractory casting
- bed
- refractory
- layer
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Abstract
A lining structure of liquid aluminum pack, comprises a furnace lining layer coated on the inner wall of the steel shell of liquid aluminum pack, and is characterized in that the furnace lining layer includes an inner sandwich which is directly combined with the inner wall of the steel shell of liquid aluminum pack and made of refractory ceramic fibre, and a composite prefabricated fireresisting castable which is built on the inner sandwich and comprises an argillaceous insulated castable refractory layer with the volume density of 1.2 to 1.5 g/cm<3> and a heavy castable refractory layer, wherein the end surface of the heavy castable refractory layer of the composite prefabricated fireresisting castable is a work layer directly contacting with a liquid aluminum phase, the end surface of the argillaceous insulated castable refractory layer is an insulated layer directly contacting with the inner sandwach.
Description
Technical field
The utility model relates to aluminium melting, processing industry aluminium liquid bag, is specifically related to a kind of inner lining structure of aluminium liquid bag.
Background technology
Aluminium liquid bag is a kind of important Thermal Equipment in aluminium melting, processing industry, and its main effect is to take up and transport aluminium liquid, and the aluminium liquid bag that has is also born the function that aluminium liquid composition is adjusted.Its liner normally adopts common fireclay brick to build by laying bricks or stones, the main deficiency of this structure is: 1, less (it is 114mm * 65mm) that aluminium liquid is surveyed the brick face size to common fireclay brick size, build rear inner lining by laying bricks or stones and stay a large amount of brickwork joints of building by laying bricks or stones, because aluminium liquid has extremely strong seepage force, therefore a large amount of brickwork joints provides passage for the infiltration of aluminium liquid; 2, existing clay brick physical dimension tolerance is bigger, local excessive brickwork joint is difficult to avoid when building by laying bricks or stones, therefore often have aluminium liquid and be penetrated into clay brick phenomenon generation behind, cause the loss of aluminium liquid, and cause aluminium liquid Baogang shell to be solidified aluminium extrusion being out of shape, also may cause security incident when serious; 3, the foreign matter content in the common brick is higher, be subject to the erosion of aluminium liquid and cause peeling off damage, so the clay brick liner is lower work-ing life; 4, the thermal conductivity of clay brick is bigger, and aluminium liquid calorific loss in the process of taking up is bigger, cold bag easily takes place cause and need reheat.But because the clay brick low price, simultaneously with after unpack easily, therefore at present also widely-used.
The whole aluminium liquid ladle-lining that adopts cast-in-site is also arranged in production practice, this liner good integrity, the intensity height, long service life, but construction is comparatively complicated, and construction process is bigger to the influence of aluminium liquid bag life-span; Need after the construction can come into operation, otherwise will have a strong impact on work-ing life through strict baking; Simultaneously because mould material liner intensity height causes the very difficulty of unpacking after aluminium liquid bag uses.The use face present based on the integral lining of this cast is very little.
Summary of the invention
A kind of structure that the purpose of this utility model provides at the existing weak point of above-mentioned prior art just is more scientific and reasonable, not only can reduce the infiltration of aluminium liquid, but also the inner lining structure of convenient construction and the novel aluminum liquid bag of unpacking.Inner lining structure of the present utility model can also improve the thermo-efficiency of aluminium liquid bag, prolongs the work-ing life of aluminium liquid bag.
The purpose of this utility model can realize by following technique measures:
The inner lining structure of aluminium liquid bag of the present utility model comprises the furnace lining layer that is covering on aluminium liquid Baogang shell inwall, described furnace lining layer comprises directly the intraformational bed that is made of the refractory ceramic fibre material that combines with aluminium liquid Baogang shell inwall, build by laying bricks or stones on intraformational bed by volume density at 1.2～1.5g/cm
3The compound prefabricated refractory casting piece that the clay quality guarantee temperature refractory casting bed of material of scope and the heavy refractory casting bed of material constitute; Wherein: constitute the working lining of heavy refractory casting bed of material end face for directly contacting with the aluminium liquid phase of compound prefabricated refractory casting piece, clay quality guarantee temperature refractory casting bed of material end face is direct and the contacted thermal insulation layer of intraformational bed.
The thickness of the clay refractory casting bed of material described in the utility model 1/2nd of the refractory casting bed thickness of attaching most importance to; The length of described compound prefabricated refractory casting piece is respectively 200mm～400mm, 100mm～300mm, 100mm～350mm, and promptly its volume is 2～15 times of common standard fireclay brick in the prior art.
Compound prefabricated refractory casting piece described in the utility model can be prefabricated in the factory and finish, and after baking, promptly can be used as building block and directly uses.Described heavy mould material is a kind of in high alumina matter, mullite or the corundum fireproof mould material; Used thermal insulation fire-resistant pouring material is that volume density is at 1.2～1.5g/cm
3The clay quality guarantee temperature refractory castable of scope.
Analyze the Al in the refractory materials from working lining refractory materials and the contingent reaction of aluminium liquid melt
2O
3React with melt hardly, and the SiO in the material
2, Fe
2O
3Wait other composition but can be by aluminium reducing (2Al+Fe
2O
3→ 2Fe+Al
2O
3, 4Al+3SiO
2→ 3Si+2Al
2O
3), make lining body material take place to corrode and peel off, also in aluminium liquid, increase impurity components such as Si, Fe simultaneously.So in the working lining side material composition of selecting compound prefabricated refractory casting piece directly to contact with the aluminium liquid phase, Al wherein
2O
3Content should be high as far as possible, so the employed heavy refractory castable of the utility model material is a kind of in high alumina matter, mullite or the corundum matter.Can satisfy the requirement of the anti-aluminium liquid of liner erosive like this, guarantee the work-ing life of inner lining material.Thermal insulation fire-resistant pouring material then adopts volume density at 1.2～1.5g/cm
3The clay quality guarantee temperature refractory castable of scope, the purpose of Xuan Zeing is both can guarantee heat insulation effect like this, makes material have suitable intensity to satisfy the needs of construction again.
The compound construction of compound prefabricated refractory casting piece can adopt the construction technology of general refractory castable to carry out.Prefabricated section after the construction is finished baking by certain temperature schedule in factory, the baking top temperature of recommendation is 600 ℃.Prefabricated section can directly be constructed behind the scene like this, and needn't carry out strict baking after the construction can directly come into operation, and makes things convenient for the rapid construction and the turnover of aluminium liquid bag.
When aluminium liquid bag life cycle finished, dismounting work can be as removing common brick, in the brick ring, split out 1～2 after, domain prefabricated section can remove easily, and is very convenient.
The filling refractory ceramic fibre both can effectively absorb the expansion stress that prefabricated section produces under working temperature between compound prefabricated refractory casting piece and aluminium liquid Baogang shell, can also improve the heat insulation effect of aluminium liquid bag simultaneously.
Because the utility model has adopted size (the comfort level when usually considering site operation bigger 2～15 times than common brick, aluminium liquid side end face size is recommended as 230mm * 150mm, also can determine magnification) according to workmen's ability, after building by laying bricks or stones, brick seam on its liner masonry reduces significantly, can porous passage thereby effectively reduced aluminium liquid.When prefabricated section is made can than be easier to control physical dimension accurately, therefore, can control brick seam uniformity during on-the-spot building construction, local excessive brickwork joint can not appear.Adopt large size prefabricated construction quantity also to reduce significantly in addition, can make things convenient for rapid construction.
The utility model also has following characteristics in addition:
1, can improve heat insulation effect.The heavy mould material just thermal conductivity than common brick itself is low, do in the temperature range (700～850 ℃) in the job contract of aluminium liquid, low 0.2～the 0.5W/mK of the thermal conductivity ratio fireclay brick of high alumina refractory casting material, compound in addition use insulated pouring material, thereby strengthen the heat insulation effect of aluminium liquid ladle-lining, improve the thermo-efficiency of aluminium liquid bag;
2, can alleviate the weight of prefabricated section.Large-sized prefabricated section such as whole employing heavy mould material, then its weight may make site operation encounter difficulties, so the insulated pouring material of compound low volume density can weight reduction.
The beneficial effects of the utility model are as follows:
This inner lining structure can reduce the seam quantity that liner is made in the job contract of aluminium liquid, thereby reduces the risk of aluminium liquid infiltration; Prefabricated section adopts the heavy refractory castable to have better use properties than common fireclay brick, and prolonged the work-ing life of aluminium liquid bag; Compound prefabricated section can reduce the thermal conductivity of ladle-lining, strengthens the insulation of aluminium liquid bag, thereby reaches the purpose of save energy; Use compound prefabricated section building construction speed to be accelerated, dismounting is also very convenient when the liner life cycle finishes simultaneously; The filling refractory ceramic fibre both can have been strengthened the heat insulation effect of aluminium liquid bag between last box hat and the compound prefabricated section, again the effective buffer liner expansion stress that produced by thermal shocking.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the three-dimensional structure diagram of compound prefabricated refractory casting piece in the utility model.
Embodiment
The utility model will be described further below with reference to embodiment (accompanying drawing):
As shown in Figure 1, the inner lining structure of aluminium liquid bag of the present utility model comprises the furnace lining layer that is covering on aluminium liquid Baogang shell inwall 1, described furnace lining layer comprises directly the intraformational bed 2 that is made of the refractory ceramic fibre material that combines with aluminium liquid Baogang shell inwall 1, build by laying bricks or stones on intraformational bed by volume density at 1.2～1.5g/cm
3The compound prefabricated refractory casting piece that the clay quality guarantee temperature refractory casting bed of material 3 of scope and the heavy refractory casting bed of material 4 constitute; Wherein: the heavy refractory casting bed of material 4 end faces that constitute compound prefabricated refractory casting piece are direct and aluminium liquid 5 contacted working linings, and the clay quality guarantee temperature refractory casting bed of material 3 end faces are direct and intraformational bed 2 contacted thermal insulation layers; The thickness of the described clay quality guarantee temperature refractory casting bed of material 1/2nd of the refractory casting bed thickness of attaching most importance to; The length of described compound prefabricated refractory casting piece is respectively 300mm, 150mm, 230mm (referring to shown in Figure 2, institute's dimensioning is the recommendation size of convenient construction among the figure).
The concrete constructional method of the utility model is as follows:
Paving refractory ceramic fibre felt on aluminium liquid Baogang shell at first, general thickness is 20mm～40mm.Build compound prefabricated refractory casting piece by laying bricks or stones by the conventional constructional method of refractory brick then, first bag end back ladle wall is built by laying bricks or stones and is finished the direct preheating in back and can come into operation.
Claims (3)
1, a kind of inner lining structure of aluminium liquid bag, it comprises the furnace lining layer that is covering on aluminium liquid Baogang shell inwall, it is characterized in that: described furnace lining layer comprises directly the intraformational bed that is made of the refractory ceramic fibre material that combines with aluminium liquid Baogang shell inwall, build by laying bricks or stones on intraformational bed by volume density at 1.2～1.5g/cm
3The compound prefabricated refractory casting piece that the clay quality guarantee temperature refractory casting bed of material of scope and the heavy refractory casting bed of material constitute; Wherein: constitute the working lining of heavy refractory casting bed of material end face for directly contacting with the aluminium liquid phase of compound prefabricated refractory casting piece, clay quality guarantee temperature refractory casting bed of material end face is direct and the contacted thermal insulation layer of intraformational bed.
2, the inner lining structure of aluminium liquid bag according to claim 1 is characterized in that: the thickness of the described clay refractory casting bed of material 1/2nd of the refractory casting bed thickness of attaching most importance to.
3, the inner lining structure of aluminium liquid bag according to claim 1, it is characterized in that: the length of described compound prefabricated refractory casting piece is respectively 200mm～400mm, 100mm～300mm, 100mm～350mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200880646U CN201330277Y (en) | 2009-01-09 | 2009-01-09 | Lining structure of liquid aluminum pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200880646U CN201330277Y (en) | 2009-01-09 | 2009-01-09 | Lining structure of liquid aluminum pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201330277Y true CN201330277Y (en) | 2009-10-21 |
Family
ID=41223653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200880646U Expired - Fee Related CN201330277Y (en) | 2009-01-09 | 2009-01-09 | Lining structure of liquid aluminum pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201330277Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102994767A (en) * | 2012-11-12 | 2013-03-27 | 苏州博能炉窑科技有限公司 | Block building process for lining of deaeration filtering equipment |
-
2009
- 2009-01-09 CN CNU2009200880646U patent/CN201330277Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102994767A (en) * | 2012-11-12 | 2013-03-27 | 苏州博能炉窑科技有限公司 | Block building process for lining of deaeration filtering equipment |
| CN102994767B (en) * | 2012-11-12 | 2014-07-09 | 苏州博能炉窑科技有限公司 | Block building process for lining of deaeration filtering equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20110109 |