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Method for preparing high-strength silicon mullite bricks

A high-strength technology of silicon mulberry brick, applied in the field of silicon mulberry brick manufacturing, can solve the problems of holes in the brick, reduce the strength performance of the silicon mulberry brick, affect the normal use of large-scale bricks, etc., and achieve the effect of easy access and increased strength.

Active Publication Date: 2022-01-21
浙江骏海新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional silicon molybdenum bricks are generally made through three processes of mixing raw materials, pressing and sintering to form bricks. However, during the process of pressing and forming brick embryos, there will be cases where the air bubbles in the brick embryos are not removed, resulting in sintering. There will be holes inside the bricks, which will reduce the strength performance of silica bricks and affect the normal use of scale bricks

Method used

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  • Method for preparing high-strength silicon mullite bricks
  • Method for preparing high-strength silicon mullite bricks
  • Method for preparing high-strength silicon mullite bricks

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specific Embodiment 1

[0029] Specific embodiment one: please refer to Figure 1-4 A method for preparing high-strength silica bricks, S1: raw material mixing: inject the raw materials required for the production of silica bricks into the mixing tank, and stir and mix evenly; the raw materials required for the production of silica bricks include special grade bauxite 70~ 85%, silicon carbide 0.5-15%, industrial waste 0.5-15%, bonded clay 3-8% and water 2-5%; the mass percentage of Al2O3 in super-grade bauxite is ≧85%, and its particle size is ≦5mm; The mass percentage of SiC in silicon carbide is ≧95%, and its particle size is ≦5mm; the particle size of industrial waste residue is ≦0.088mm; the mass percentage of Al2O3 in bonded clay is ≧35%, and its particle size is ≦0.088mm; Put the super-grade bauxite and silicon carbide into the mixing tank for dry mixing, the dry mixing time is 3-5 minutes, then pour water into the mixing tank for 2-3 minutes; then pour in industrial waste Combined with clay, ...

specific Embodiment 2

[0036] Specific embodiment two, refer to Figure 5-6 The difference between this embodiment and Embodiment 1 is that the structure of the air-removing assembly 402 is different, and the specific difference is that: the air-removing assembly 402 also includes a baffle assembly 403, and the baffle assembly 403 includes a baffle cylinder 4031 and a movable baffle 4032; the baffle The cylinder 4031 is fixedly installed on the upper end surface of the pressing plate 4013, and the output end of the baffle cylinder 4031 is fixedly connected with the inner end surface of the movable baffle 4032. The movable baffle 4032 suppresses the raw materials in the molding die 301, so as to prevent the parts on the pressing plate 4013 from directly pressing the raw materials, resulting in an uneven surface of the brick embryo. The lower end surface of the pressing plate 4013 is provided with a slide rail 4017, and the upper end surface of the movable baffle 4032 is provided with a slide block 40...

specific Embodiment 3

[0037] Specific embodiment three, refer to Figure 7 , The difference between this embodiment and Embodiment 1 and Embodiment 2 is that the structure of the molding die 301 is different, and the specific difference is that the outer wall of the molding die 301 is fixed with a vibration pump 5 . The vibrating pump 5 can drive the forming mold 301 to vibrate, thereby driving the raw materials in the forming mold 301 to vibrate, and further vibrating to remove air bubbles.

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Abstract

The invention discloses a method for preparing high-strength silicon mullite bricks, and belongs to the technical field of silicon mullite brick manufacturing. The method for preparing the high-strength silicon mullite bricks comprises the following steps: S1, raw material mixing: injecting raw materials required for manufacturing the silicon mullite bricks into a stirring barrel, and uniformly stirring and mixing; S2, compression molding: injecting the mixed silicon mullite brick raw materials into a brick blank molding device, removing bubbles in the silicon mullite brick raw materials by the brick blank molding device, and pressing the silicon mullite brick raw materials into brick blanks; and S3, sintering to form bricks: putting the brick blanks subjected to compression molding into a brick kiln, and carrying out sintering to form the bricks. Through the arrangement of a bubble removing assembly in the brick blank forming device, mixed raw materials in a forming mold can be stirred, so that bubbles in the mixed raw materials can be removed, the situation that holes exist in sintered and formed bricks can be avoided, and the purpose of improving the strength of the silicon mullite bricks is achieved.

Description

technical field [0001] The invention belongs to the technical field of silica molybdenum brick manufacture, and more specifically relates to a preparation method of high-strength silica molybdenum brick. Background technique [0002] Cement is an important basic material for national infrastructure and a pillar industry of the national economy. Especially in recent years, the cement industry has developed towards large-scale, diversified raw material energy, energy-saving and emission-reduction high-efficiency, etc., resulting in a substantial increase in the thermal stress, mechanical stress and chemical erosion of the refractory materials used in cement kiln linings, seriously affecting the The operating rate of the cement kiln and the service life of the kiln lining require a high-strength refractory silica brick as a building material for the cement kiln. [0003] Traditional silicon molybdenum bricks are generally made through three processes of mixing raw materials, p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B3/02B28B3/04B28B13/06B28B17/00B28B13/02B28C3/00
CPCB28B3/022B28B3/04B28B13/065B28B17/00B28B13/0235B28C3/00Y02P40/60
Inventor 朱前生丁惠勤吴云峰姬建男戴丽霞蒋晓东
Owner 浙江骏海新材料有限公司
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