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A new type of light-burning refractory product for flue-cured tobacco machine furnace

A technology for refractory products and flue-cured tobacco machines, which is applied in the field of light-burning refractory products, can solve the problems of shortening the service life of refractory materials, strengthening the damage of refractory materials, reducing material strength, etc., and achieves the effects of increasing strength, increasing strength, and increasing density.

Active Publication Date: 2015-08-19
贵阳联合高温材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main manifestations are as follows: First, the combustion of bituminous coal or anthracite is the reaction between the acid gas and the matrix part of the material, resulting in a decrease in the strength of the material and disintegration
Second, during the combustion process of bituminous coal or anthracite, coking and refractory materials react to produce slag erosion, so that refractory materials are often in a state of rapid cooling and rapid heating, which is easy to crack and peel off refractory materials, resulting in sharply increased damage to refractory materials, thus shortening the life of refractory materials. service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Example 1: 20 kilograms of coarse-grained coke gemstones with a particle size of 5 to 3 mm, 25 kilograms of medium-grained coke gemstones with a particle size of 3 to 1 mm, 15 kilograms of fine-grained coke gemstones with a particle size of 1 to 0.088 mm, and a particle size of ≤ 0.088mm powder coke gem 37 kg, Guangxi white clay 3 kg. Mix evenly to make 100 kg of mixed bauxite, add 8 kg of binder sodium silicate, mix evenly, and press it under high pressure.

Embodiment 2

[0010] Example 2: 20 kilograms of coarse-grained coke gemstones with a particle size of 5 to 3 mm, 25 kilograms of medium-grained coke gemstones with a particle size of 3 to 1 mm, 15 kilograms of fine-grained coke gemstones with a particle size of 1 to 0.088 mm, and a particle size of ≤ 0.088mm powder coke gem 27 kg, silicon carbide 10 kg, mixed evenly to make 100 kg of mixed bauxite, plus 8 kg of binder sodium silicate, through high pressure pressing.

Embodiment 3

[0011] Example 3: 20 kilograms of coarse-grained coke gemstones with a particle size of 5 to 3 mm, 25 kilograms of medium-grained coke gemstones with a particle size of 3 to 1 mm, 15 kilograms of fine-grained coke gemstones with a particle size of 1 to 0.088 mm, and a particle size of ≤ 0.088mm powder coke gem 25 kg, Guangxi white clay 3 kg, silicon carbide 10 kg, silicon dioxide micropowder 2.0 kg, mixed evenly to make 100 kg of mixed bauxite, plus 8 kg of binder sodium silicate, through high pressure suppressed.

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PUM

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Abstract

The invention relates to a novel light roasting fireproof product used for a flue-cured tobacco machine furnace, which comprises the following raw materials by weight percentage: 77-91% of mixed flint clay, 0-10% of carbonization silicon powder, 2-3% of silica micro powder, 2-3% of Guangxi white clay and 6-8% of binder sodium silicate, the physical and chemical indexes of the carbonization silicon powder and the silica micro powder are characterized in that SiC in the carbonization silicon powder is greater than or equal to 95%, and SiO in silica micro powder is greater than or equal to 93%. wherein the mixed flint clay is mixed by 20-25% of crude pellet flint clay with granularity of 5-3mm, 20-25% of intermediate pellet flint clay with granularity of 3-1mm, 10-15% of fine pellet flint clay with granularity of 1-0.088mm and 30-40% of powder flint clay with granularity less than or equal to 0.088mm with weight ratio, The novel light roasting fireproof product has good thermal shock stability and strength, can block the erosion of flue gas and slag, spalling damage of the product can be avoided, the spalling damage of the light roasting product used for tobacco machine furnace, and a furnace shell can be effectively protected.

Description

1. Technical field [0001] The invention relates to a light-fired refractory product, in particular to a new light-fired refractory product for flue-cured tobacco machines. 2. Background technology [0002] In the process of curing flue-cured tobacco, bituminous coal or anthracite is usually used to provide heat energy, and bituminous coal or anthracite produces CO, CO 2 、H 2 S, SO 2 , SO 3 And other gases, because bituminous coal or anthracite contains organic matter and coal gangue, etc., are easy to coke during combustion. The generated gas and coking substances are easy to react with refractory materials and be damaged. The main manifestations are as follows: First, the combustion of bituminous coal or anthracite is the reaction between the acid gas and the matrix of the material, resulting in the reduction of the strength of the material and its disintegration. Second, during the combustion process of bituminous coal or anthracite, coking and refractory materials re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 张成行宋明刚冉江艳
Owner 贵阳联合高温材料有限公司
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