CN2329719Y - Fireproof heat insulation composite brick - Google Patents
Fireproof heat insulation composite brick Download PDFInfo
- Publication number
- CN2329719Y CN2329719Y CN 98220230 CN98220230U CN2329719Y CN 2329719 Y CN2329719 Y CN 2329719Y CN 98220230 CN98220230 CN 98220230 CN 98220230 U CN98220230 U CN 98220230U CN 2329719 Y CN2329719 Y CN 2329719Y
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- heat insulation
- composite brick
- good
- brick
- heat
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- Expired - Fee Related
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model relates to a fireproof heat insulation composite brick which is a layered structure and is composed of a working layer and a heat insulation layer. The combined gap forms a curved shape, and the working layer and the heat insulation layer of the fireproof heat insulation composite brick have the binding force. The working layer has good high temperature resistance performance, good acid and alkali resistance performance and good abrasion resistance performance, and the mechanical strength is high; the stability of heat shock is good, the heat insulation performance of the heat insulation layer is good, and the intensity is high. The composite brick can satisfy the technical requirement and the use requirement of a rotary kiln to realize that the energy is saved and prolong the service life of the rotary kiln. The composite brick can be used for other heat equipment and has the fireproof and the heat insulation functions, and the construction is very convenient.
Description
The utility model relates to a kind of refractory heat-insulating composite brick, belongs to fire resisting material field.
Existing refractory brick, heat insulating tile etc. are single material-structure, the brick of various performances need be used during use, if use on the motionless equipment of relative fixed, as the application on tunnel cave, the kiln of falling the cigarette, the brick of various different performances is used and still can meets the demands.But on the equipment of some relative motions, as on rotary kiln, being used of various bricks just is difficult to meet the demands.Large-sized rotary kiln is that alumina producer, cement plant are the heart equipment that burns till grog of representative, 1360～1500 ℃ of normal firing temperatures, diameter is more than 4.3 meters the rotary kiln daily output grog kiloton, fire-resistant kiln-lining brick is bearing the influence of erosion, wearing and tearing and the temperature difference sudden turn of events of high-temperature material, very easily damages.In order to adapt to this harsh operating condition of rotary kiln, prolong the application life of rotary kiln, the refractory material of high-quality has all correspondingly been selected by each producer, as phosphate refractory brick, high-alumina brick etc.Facts have proved, because the coefficient of thermal conductivity height of high-quality refractory material, the one, make that temperature descends in the kiln body, influence product quality, guarantee that product quality must many consume fuel; The 2nd, kiln body case temperature is obviously risen, overstep the extreme limit sometimes, warm high energy catches fire the lubrication oil of gear ring, cause the kiln shell distortion, gently then cause stopping production, heavy then kiln is scrapped, not only waste fuel, and seriously reduced usage ratio of equipment, thereby seriously influenced economic benefit more.In order to address this problem, the producer that has once added between chamotte kiln kiln body case and kiln body liner and used asbestos insulation refractory brick, fire-retardent fiber felt-rug etc., because these heat-barrier material intensity are low, binding ability is poor, when igniting one starting, kiln shell not only can not rotate with kiln-lining brick, and the serious stranding of heat-barrier material is broken, cause kiln liner tile large tracts of land to come off, the rebuilding of having to.People are seeking to satisfy the technical requirements of rotary kiln always, and the scheme that can satisfy the instructions for use of rotary kiln again solves this problem.
The refractory heat-insulating composite brick that provides a kind of refractory heat-insulating performance good is provided the purpose of this utility model, the use of this composite brick can be satisfied the technical requirements of rotary kiln, can satisfy the instructions for use of rotary kiln again, can realize saving energy and reduce the cost, prolong the application life of rotary kiln.
The purpose of this utility model can be realized by following scheme:
Described refractory heat-insulating composite brick is layer structure, is composited by working lining and isolation layer.
Described refractory heat-insulating composite brick, the bonding crack of its working lining and isolation layer is a curve-like, is best with the indentation.Like this, adhesion is strong, especially increases the shearing force of junction.
Usually, the thickness of the working lining of this refractory heat-insulating composite brick accounts for 60～80% of whole brick thickness, has both guaranteed fire-resistant, heat insulation requirement, guarantees the intensity of whole brick again.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1, a structural representation of the present utility model also are an embodiment.
Among the figure, 1 working lining, 2 working lining aggregates, 3 bonding cracks, 4 isolation layer aggregates, 5 isolation layers.
Working lining aggregate 2 and isolation layer aggregate 4 play skeleton function respectively in working lining 1 and isolation layer 5, bonding crack 3 is a zigzag.
This composite brick can be made sintered combined brick by firing process, also can make unburned composite brick etc. by unburned technology.According to different requirements, select different raw materials, take different technology, make different brick types.As prepare the heat insulation composite brick of high-alumina refractory with the high-alumina refractory clay material, working lining and isolation layer are prepared burden respectively, common moulding, burn till and form.
Alumine calcined respectively make refractory aggregate and heat-insulation light aggregate, the grain composition allotment aggregate that preparation requires usually according to refractory material, the maximum particle diameter of refractory aggregate is 6.5mm, the maximum particle diameter of heat-insulation light aggregate is 12mm; The powder that refractory aggregate is crushed to particle diameter d≤0.12mm is made binding material, and interpolation active silica etc. is made additive, adds the part cementing agent again and gets final product forming ingredient.The materials proportioning is: aggregate 50～60%wt, binding material 30～45%wt, additive 2～10%wt, add water and paper pulp ratio and be mixed liquor cementing agent 3～12%wt of 1: 1, working lining materials and isolation layer materials are prepared burden respectively, batch mixing makes material mud respectively, presses working lining and 2: 1 mechanical pressings of isolation layer thickness with forcing press again, dries then, burns till and make composite brick of the present utility model.
Refractory heat-insulating composite brick of the present utility model, its working lining and isolation layer have firm adhesion, can satisfy the instructions for use of rotary kiln, working lining has good high temperature resistant, acid and alkali-resistance, abrasion resistance properties, the mechanical strength height, good thermal shock stability, the isolation layer heat-proof quality is good, the intensity height, can satisfy the technical requirements of rotary kiln, reach energy saving purposes, this composite brick is 2～3 times of the similar refractory brick of same domain application life, thereby prolonged the application life of rotary kiln greatly, solved and perplexed a great problem that rotary kiln is produced.That the utility model composite brick also can be used for is fire-resistant, other Thermal Equipment of refractory heat-insulating etc., integrates refractory heat-insulating, and it is also very convenient to construct.
Claims (4)
1, a kind of refractory heat-insulating composite brick is characterized in that being layer structure, is composited by working lining and isolation layer.
2, refractory heat-insulating composite brick according to claim 1, the bonding crack that it is characterized in that working lining and isolation layer is a curve-like.
3, refractory heat-insulating composite brick according to claim 2 is characterized in that the bonding crack indentation of working lining and isolation layer.
4,, it is characterized in that the thickness of working lining accounts for the thick 60-80% that rubs of whole brick according to claim 1,2,3 described refractory heat-insulating composite bricks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98220230 CN2329719Y (en) | 1998-02-06 | 1998-02-06 | Fireproof heat insulation composite brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98220230 CN2329719Y (en) | 1998-02-06 | 1998-02-06 | Fireproof heat insulation composite brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2329719Y true CN2329719Y (en) | 1999-07-21 |
Family
ID=33972070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98220230 Expired - Fee Related CN2329719Y (en) | 1998-02-06 | 1998-02-06 | Fireproof heat insulation composite brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2329719Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449770A (en) * | 2014-10-28 | 2015-03-25 | 武汉钢铁(集团)公司 | Lining brick structure for cooling section of coke dry quenching furnace and building method |
-
1998
- 1998-02-06 CN CN 98220230 patent/CN2329719Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449770A (en) * | 2014-10-28 | 2015-03-25 | 武汉钢铁(集团)公司 | Lining brick structure for cooling section of coke dry quenching furnace and building method |
| CN104449770B (en) * | 2014-10-28 | 2017-03-22 | 武汉钢铁(集团)公司 | Lining brick structure for cooling section of coke dry quenching furnace and building method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |