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Calcium aluminate fully-combined tin bath top cover brick for float glass tin bath and preparation method thereof

A float glass and calcium aluminate technology, applied in the field of refractory materials, can solve the problems of reducing the life of electric heating elements, increasing the expansion of reinforcement, and increasing maintenance costs, so as to improve profits, increase yield, and be easy to install and maintain. Effect

Active Publication Date: 2021-01-08
山东淄博沈淄耐火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]The existing heat-resistant concrete roof bricks have a short service life, no separate insulation layer, poor temperature control effect, and at the same time reduce the service life of electric heating elements and increase maintenance cost
It is easy to crack and drop slag during use, and the atmosphere in the tank enters the cracks to corrode the reinforcement, which increases the expansion of the reinforcement and causes a larger area of ​​cracking on the top cover

Method used

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  • Calcium aluminate fully-combined tin bath top cover brick for float glass tin bath and preparation method thereof
  • Calcium aluminate fully-combined tin bath top cover brick for float glass tin bath and preparation method thereof
  • Calcium aluminate fully-combined tin bath top cover brick for float glass tin bath and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The calcium aluminate fully assembled tin bath roof brick for the float glass tin bath described in Example 1 is composed of a supporting brick and a combined brick, and the supporting brick is composed of a bottom calcium aluminate hot facing brick and an upper lightweight Mo It consists of stone insulation bricks; the composite brick is a four-layer structure, which consists of calcium aluminate thermal facing bricks on the bottom layer, light mullite insulation bricks on the second and third layers, and hard calcium silicate board on the top layer. The raw material ratio of the calcium aluminate hot facing brick is shown in Table 2, and the raw material ratio of the synthetic calcium aluminate aggregate is shown in Table 1.

[0042] in:

[0043] Calcium aluminate cement includes the following chemical composition: Al 2 o 370%, CaO 25%, Fe 2 o 3 0.1%, SiO 2 4%.

[0044] The particle size of the calcium aluminate fine powder is 300 mesh; the particle size of th...

Embodiment 2

[0061] The calcium aluminate fully assembled tin bath roof brick for the float glass tin bath described in Example 2 is composed of a support brick and a combined brick, and the support brick is composed of a bottom calcium aluminate hot facing brick and an upper layer of lightweight Mo It consists of stone insulation bricks; the composite brick is a four-layer structure, which consists of calcium aluminate thermal facing bricks on the bottom layer, light mullite insulation bricks on the second and third layers, and hard calcium silicate board on the top layer. The raw material ratio of the calcium aluminate hot facing brick is shown in Table 2, and the raw material ratio of the synthetic calcium aluminate aggregate is shown in Table 1.

[0062] in:

[0063] Calcium aluminate cement includes the following chemical composition: Al 2 o 3 70%, CaO 25%, Fe 2 o 3 0.1%, SiO 2 4%.

[0064] The particle size of the calcium aluminate fine powder is 300 mesh; the particle size ...

Embodiment 3

[0081] The calcium aluminate fully assembled tin bath roof brick for the float glass tin bath described in Example 3 is composed of a supporting brick and a combined brick, and the supporting brick is composed of a bottom calcium aluminate hot facing brick and an upper layer of lightweight Mo It consists of stone insulation bricks; the composite brick is a four-layer structure, which consists of calcium aluminate thermal facing bricks on the bottom layer, light mullite insulation bricks on the second and third layers, and hard calcium silicate board on the top layer. The raw material ratio of the calcium aluminate hot facing brick is shown in Table 2, and the raw material ratio of the synthetic calcium aluminate aggregate is shown in Table 1.

[0082] in:

[0083] Calcium aluminate cement includes the following chemical composition: Al 2 o 3 70%, CaO 25%, Fe 2 o 3 0.1%, SiO 2 4%.

[0084] The particle size of the calcium aluminate fine powder is 300 mesh; the particle...

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Abstract

The invention belongs to the technical field of refractory materials, and particularly relates to a calcium aluminate fully-combined tin bath top cover brick for a float glass tin bath and a preparation method of the calcium aluminate fully-combined tin bath top cover brick. The brick consists of a supporting brick and a combined brick, wherein the supporting brick consists of a bottom layer calcium aluminate hot face brick and an upper layer light mullite heat insulating brick; the combined brick is of a four-layer structure and is composed of bottom-layer calcium aluminate hot face bricks, light mullite heat preservation bricks on the second layer and the third layer and a hard calcium silicate board on the top layer. The calcium aluminate hot face brick is composed of synthetic calciumaluminate aggregate, calcium aluminate cement, calcium aluminate fine powder, mullite fine powder and micro silicon powder. The calcium aluminate fully-combined molten tin bath top cover brick for thefloat glass tin bath is stable in structure, precise in size, high in thermal shock resistance, easy to install and maintain and good in heat preservation performance, the air tightness of the wholemolten tin bath is improved, temperature control is accurate, oxygen pollution is reduced, drippings on the top of the molten tin bath are reduced, and the yield of glass is increased by 5% or above;and profits of glass enterprises are effectively increased.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a calcium aluminate fully assembled tin bath top cover brick for a float glass tin bath and a preparation method thereof. Background technique [0002] Today, the float glass process can be used to produce most types of glass, such as high-end glass such as mobile phone, automobile and display panel glass (PDP and LCD). In addition, float glass can be used in various solar applications such as substrate and cover glass for photovoltaic cells, cover glass for heat collectors and mirrors for solar concentrating units, etc. With the continuous improvement of float glass quality requirements, higher requirements and severe tests are put forward for the tin bath of thermal equipment that is indispensable in the production process of float glass. [0003] The tin bath is a fully sealed structure formed by the bottom of the tin bath, the breast wall on the top ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B18/16C04B35/66
CPCC03B18/16C04B35/66C04B2235/3222C04B2235/3463C04B2235/428C04B2235/5436C04B2235/9607C04B2235/77C04B2235/656C04B2235/6567C04B2235/602C04B2235/6562C04B2235/6565C04B2235/5427Y02W30/91
Inventor 马乃甫马晓东翟所鹏王德宏翟所春王光胜张宗键
Owner 山东淄博沈淄耐火材料有限公司
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