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Molten tin bath bottom brick and production method thereof and composition used for producing molten tin bath bottom brick

A technology for tin bath bottom bricks and silicon-alumina clinker, which is applied in the field of refractory materials, can solve the problems of high thermal conductivity of tin bath bottom bricks, poor energy saving effect, and high energy consumption of tin baths, and achieves easy promotion and application, and less heat loss. , the effect of high refractoriness

Active Publication Date: 2019-06-07
HENAN ZHONGYUAN SPECIAL REFRACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the air pores in the base part of the tin bath bottom brick are closed pores, which are not easy to form nepheline, which can prolong the service life of the tin bath bottom brick. There are problems of high energy consumption, low thermal efficiency and poor energy saving effect in the process

Method used

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  • Molten tin bath bottom brick and production method thereof and composition used for producing molten tin bath bottom brick
  • Molten tin bath bottom brick and production method thereof and composition used for producing molten tin bath bottom brick
  • Molten tin bath bottom brick and production method thereof and composition used for producing molten tin bath bottom brick

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preparation example Construction

[0055] The preparation method of the tin bath bottom brick provided by the present invention comprises the steps of taking the raw materials in the formulated quantity, adding water and mixing them to make a billet, curing, drying, and firing at 1400-1500°C to obtain the finished product.

[0056] Preferably, the firing time at 1400-1500° C. is 24-50 hours.

[0057] Preferably, tunnel kiln, shuttle kiln or downdraft kiln can be used for firing at 1400-1500°C, preferably shuttle kiln.

[0058] Preferably, the curing after billet making is natural curing. The natural curing time is 20-30 hours, preferably 24 hours.

[0059] Preferably, the temperature used for drying after billet making and curing is 100-120° C., and the drying time is 24-72 hours.

[0060] In the above-mentioned preparation method of the tin bath bottom brick, the billet making includes pouring the mixed material and vibrating molding to obtain the billet.

[0061] The composition for preparing tin bath bott...

Embodiment 1

[0068] The composition used to prepare tin bath bottom bricks in this embodiment consists of the following components in parts by weight: 60 parts of aggregate, 10 parts of pure calcium aluminate cement, 20 parts of high alumina fine powder, 8 parts of clay powder, 2 parts of mineralizer, 0.1 part of water reducer;

[0069] The aggregate used is silicon-aluminum clinker, including the following components in mass percentage: Al 2 o 3 45.84%, SiO 2 48.95%, Fe 2 o 3 0.79%. The particle size of silicon-aluminum clinker is 0.1-5mm, and the bulk density is 2.30g / cm 3 , the apparent porosity is 5.66%, and the water absorption rate is 2.35%. Among them, 20 parts of silicon-aluminum clinker with a particle size of 0.1 to 1 mm, 20 parts of silicon-aluminum clinker with a particle size of more than 1 mm and not more than 3 mm, and a particle size of more than 20 parts of silicon-aluminum clinker of 3mm and not larger than 5mm;

[0070] The silicon-alumina clinker is prepared by...

Embodiment 2

[0073] The composition used to prepare tin bath bottom bricks in this embodiment consists of the following components in parts by weight: 60 parts of aggregate, 10 parts of pure calcium aluminate cement, 20 parts of high alumina fine powder, 8 parts of clay powder, 2 parts of mineralizer, 0.1 part of water reducer;

[0074] The aggregate used is silicon-aluminum clinker, including the following components in mass percentage: Al 2 o 3 45.75%, SiO 2 49.15%, Fe 2 o 3 0.78%. The particle size of silicon-aluminum clinker is 0.1-5mm, and the bulk density is 2.30g / cm 3 , the apparent porosity is 4.25%, and the water absorption rate is 2.1%. Among them, 25 parts of silicon-aluminum clinker with a particle size of 0.1 to 1 mm, 20 parts of silicon-aluminum clinker with a particle size of more than 1 mm and not more than 3 mm, and a particle size of more than 15 parts of silicon-aluminum clinker with 3mm and no more than 5mm;

[0075] The silicon-alumina clinker is prepared by a...

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Abstract

The invention relates to a molten tin bath bottom brick and a production method thereof and a composition used for producing the molten tin bath bottom brick, and belongs to the technical field of fire-resistant materials. The molten tin bath bottom brick is mainly produced from the following raw materials of, in parts by weight, 50-70 parts of aggregate, 5-15 parts of calcium aluminate cement, 6-25 parts of high-alumina fine powder, 4-12 parts of clay powder, 2-8 parts of mineralizer and 0.1-0.3 part of water reducer; and the aggregate is silica-alumina clinker. The molten tin bath bottom brick has proper volume density and low apparent porosity, has a low heat conductivity coefficient, low-hydrogen diffusance, low elasticity modulus, a low linear expansion coefficient and high refractoriness at the same time, and has the advantages of being free from nephelinization, long in service life and the like when used for the bottom of a molten tin bath, meanwhile, a heat preservation effectis good, heat loss is little, and the heat utilization efficiency can be significantly improved, so that the purposes of reducing energy consumption and saving energy are achieved.

Description

technical field [0001] The invention relates to a tin bath bottom brick, a preparation method thereof, and a composition for preparing the tin bath bottom brick, belonging to the technical field of refractory materials. Background technique [0002] The tin bath is the key thermal equipment of the float glass production line. During the production process of float glass, the molten glass flows into the tin bath continuously through the liquid channel, and at a certain temperature, relying on the surface tension and gravity, and being pulled by the transmission roller, it is spread on the tin bath. Flatten, polish, thin, float upward. Therefore, the stability of the structure of the tin bath restricts the continuity of production and affects the output and quality of glass. The bottom brick of the tin bath is the key part of the tin bath, and the refractory material used is required to have strong erosion resistance, high slag resistance and good H resistance 2 Diffusibili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C03B18/16
Inventor 吕志乾刘常华郑松旺郑银龙吕瑞芳孟洪晓申松霞
Owner HENAN ZHONGYUAN SPECIAL REFRACTORY
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