CN86200382U - Wearproof and fireproof compound brick - Google Patents
Wearproof and fireproof compound brick Download PDFInfo
- Publication number
- CN86200382U CN86200382U CN 86200382 CN86200382U CN86200382U CN 86200382 U CN86200382 U CN 86200382U CN 86200382 CN86200382 CN 86200382 CN 86200382 U CN86200382 U CN 86200382U CN 86200382 U CN86200382 U CN 86200382U
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- furnace
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- proof
- wearing layer
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model discloses a wearing resisting and fire resisting compound brick used in boiling furnace, combustion furnace and sintering furnace, in particular to be used as furnace lining in the boiling furnace of a gangue power generating plant. The utility model takes high aluminum raw material as base body and is compounded with a wearing resisting layer, and the wearing resisting layer comprises silicon carbide, crystallisation emery powder, alpha type aluminium oxide and paper pulp which are mixed and sintered. The bonding strength of the base body and the wearing resisting layer of the wearing resisting and fire resisting compound brick is high, which have good wearing resistance and fire resistance. With the furnace lining experiment of the gangue boiling furnace, the utility model only be worn 1-2 mm after rotating 2000 hours, and the service life of the furnace is evidently increased.
Description
The utility model relates to a kind of abrasion-proof and refractory composite brick that fluidized bed furnace, combustion furnace and sintering furnace are made furnace lining that is used for, and is specially adapted to do in the fluidized bed furnace of coal gangue power generation factory the abrasion-proof and refractory composite brick of furnace lining.
Before the utility model, in fluidized bed furnace, combustion furnace and sintering furnace, make furnace lining and generally adopt high-alumina brick (seeing " mechanical engineering manual " the 3rd volume of publishing September nineteen eighty-two).When particularly using high-alumina brick to make furnace lining in the fluidized bed furnace of coal gangue power generation factory, below the boiling section reason pipe, the furnace wall heavy wear of high-alumina brick is caused in the bump furnace wall because the boiling of the gangue of the condition of high temperature is beated.General running 3000 hours, the following high-alumina brick of pipe laying just wears away 100 millimeter, has reduced the service life of fluidized bed furnace, has increased maintenance capacity.
It is good that task of the present utility model provides a kind of abrasion-proof and refractory performance, and the bond strength height particularly improves the abrasion-proof and refractory composite brick in coal gangue power generation factory fluidized bed furnace life-span, and its profile can be made standard brick or special-shaped product.
The structure of the compound standard brick of abrasion-proof and refractory shown in the accompanying drawing one; The compound special-shaped product non-limiting examples of abrasion-proof and refractory shown in the accompanying drawing two.They are to be matrix (1) with the high aluminium material, and compound one deck wearing layer (2) is formed.According to actual requirement, wearing layer can be made one side, two or multiaspect, and its thickness is 1～50 millimeter.
Said high aluminium material matrix is first-class or second-class high alumina, wherein alundum (Al content 55～75%(weight); Wearing layer by carborundum, crystal corundum powder, α type aluminium oxide powder, add paper pulp and mix the back sintering as binding agent and form, wherein particle is a 10%(weight less than 240 orders or 180 purpose carborundum contents), particle 20 purpose carborundum contents are 50%(weight), particle is less than 240 purpose crystal corundum powder 25%(weight), α type aluminium oxide powder 15%(weight), the summation of aforementioned each component is a 100%(weight), add paper pulp 2～3%(weight), more than be the best proportioning of each component.
Mixed high aluminum substrate material, wearing layer material are respectively charged in the same mould, extrusion forming, adopting forcing press to apply meter pressure for standard brick is 400～800 kg/cm; Adopt the method extrusion forming of hand punning for special-shaped product.The adobe of moulding or special-shaped product, drying are sent into sintering in the sintering oven, and sintering temperature is 1500～1580 ℃, and sintering atmosphere is that oxidation or vacuum or reducing gas or inert gas shielding all can reach good result.
Embodiment one.
1, the second-class high alumina of high alumina matrix adopting, wherein alundum (Al content is 65%(weight);
2, wearing layer material: particle is less than 240 purpose carborundum content 10%(weight), particle 20 purpose carborundum content 50%(weight), particle is less than 240 purpose crystal corundum powder content 25%(weight), α type alundum (Al content 15%, aforementioned each component summation is a 100%(weight), add paper pulp 2%(weight) mix;
3, high aluminum substrate material, wearing layer material are respectively charged in the same mould, extrusion forming, the meter pressure that applies is 400 kg/cm, wherein wearing layer thickness is 20 millimeters;
4, behind the brick blank drying of moulding, to put under the oxidizing atmosphere of electric furnace with stove intensification sintering, 1580 ℃ of sintering temperatures are incubated 3 hours, come out of the stove with the stove cooling.
Embodiment two.
1, the second-class high alumina of high alumina matrix adopting, wherein alundum (Al content is 65%(weight);
2, wearing layer material: particle is less than 180 purpose carborundum content 10%(weight), particle 20 purpose carborundum 50%(weight), particle is less than 240 purpose crystal corundum powder 25%(weight), α type alundum (Al 15%(weight), aforementioned each component summation 100%(weight), add paper pulp 3%(weight) mix;
3, high aluminum substrate material, the wearing layer material is respectively charged in the same mould, extrusion forming, and the meter pressure that applies is 500 kg/cm, wherein wearing layer thickness is 10 millimeters;
4, behind the brick blank drying of moulding, put into tunnel cave with kiln intensification sintering, 1530～1550 ℃ of sintering temperatures are incubated 8～12 hours, with kiln cooling kiln discharge.
The wearing layer intensity of abrasion-proof and refractory composite brick and special-shaped product thereof is higher than the intensity of high aluminum substrate.Because in sintering process, the faying face of wearing layer and high aluminum substrate produces chemical bond, so the intensity of faying face also is higher than the intensity of high aluminum substrate, part in same fluidized bed furnace adopts the compound brick wall of abrasion-proof and refractory to make furnace lining through coal gangue power generation factory, part adopts the brick wall of high alumina to compare operation test as furnace lining in addition, turn round after 2000 hours, the furnace wall wear extent of measuring high-alumina brick reaches 40～60 millimeters, the furnace wall of abrasion-proof and refractory composite brick is is only worn and torn 1～2 millimeter, as seen adopt the abrasion-proof and refractory composite brick to make the furnace lining of gangue fluidized bed furnace, it is tangible prolonging its service life.Be used for combustion furnace and sintering furnace etc. in addition and make furnace lining.More can improve its service life.
Claims (5)
1, a kind of is the abrasion-proof and refractory composite brick of matrix [1] with the high aluminium material, it is characterized in that at the compound one deck wearing layer of high aluminium material matrix [2], said wearing layer is by carborundum, crystal corundum powder, α type aluminium oxide powder, adds paper pulp mixing back sintering and forms.
2, according to the described abrasion-proof and refractory composite brick of claim 1, the best proportioning that it is characterized in that the wearing layer each component: particle is less than 20 purpose carborundum content 50%(weight), particle is less than 240 orders or 180 purpose carborundum content 10%(weight), particle is less than 240 purpose crystal corundum powder content 25%(weight), α type alundum (Al powder content 15%(weight), aforementioned each component summation is a 100%(weight), add paper pulp 2～3%(weight).
3,, it is characterized in that sintering the wearing layer of one side at least into along the high aluminium material matrix surface according to claim 1 or 2 described abrasion-proof and refractory composite bricks.
4, according to the described abrasion-proof and refractory composite brick of claim 3, it is characterized in that 1～50 millimeter of wearing layer thickness.
5, according to claim 1 or 2 or 4 described abrasion-proof and refractory composite bricks, it is characterized in that profile can be made into standard brick shape or special-shaped product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86200382 CN86200382U (en) | 1986-01-29 | 1986-01-29 | Wearproof and fireproof compound brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86200382 CN86200382U (en) | 1986-01-29 | 1986-01-29 | Wearproof and fireproof compound brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86200382U true CN86200382U (en) | 1987-06-24 |
Family
ID=4804412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86200382 Ceased CN86200382U (en) | 1986-01-29 | 1986-01-29 | Wearproof and fireproof compound brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86200382U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921122A (en) * | 2010-08-17 | 2010-12-22 | 河南省耕生高温材料有限公司 | Corundum furnace liner composite and preparation method thereof through isostatic pressing |
| CN104140277A (en) * | 2014-07-31 | 2014-11-12 | 陕西宝光陶瓷科技有限公司 | Method for manufacturing integrated furnace lining for medium-frequency induction heating furnace |
-
1986
- 1986-01-29 CN CN 86200382 patent/CN86200382U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921122A (en) * | 2010-08-17 | 2010-12-22 | 河南省耕生高温材料有限公司 | Corundum furnace liner composite and preparation method thereof through isostatic pressing |
| CN104140277A (en) * | 2014-07-31 | 2014-11-12 | 陕西宝光陶瓷科技有限公司 | Method for manufacturing integrated furnace lining for medium-frequency induction heating furnace |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right |