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Light forsterite heat insulating brick and method of manufacturing the same

A manufacturing method and a technology for forsterite sand, which are applied in the field of refractory materials, can solve the problems of uneven density of bricks, difficulty in forming bricks, low brick strength, etc., and achieve the effects of solving uneven density, reducing energy consumption, and reducing bulk density.

Inactive Publication Date: 2009-08-05
营口青花耐火材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the manufacturers use charcoal or coke and other substances in the ingredients to increase the porosity of the brick body through the burning of these substances during the firing process. In addition, the density of the adobe is not easy to be uniform. In addition, due to the inappropriate binder added, the strength of the formed adobe is very low and it is easy to be damaged during the handling process, resulting in a very low finished product of the adobe, which not only increases energy consumption , which increases the cost of production and is also a waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A light-weight forsterite heat-insulating brick, which is made of the following raw materials according to the weight ratio: 60 parts of 1mm-0.5mm forsterite sand, 15 parts of 1mm-0.5mm magnesite, ≤0.088mm magnesia 5 parts powder, ≤2μm SiO 2 5 parts of fine powder;

[0023] The binder is 3% sodium carboxymethyl cellulose aqueous solution, and its addition amount is forsterite sand, magnesite, magnesite powder and SiO 2 5% of the total weight of micropowder.

[0024] The manufacturing method of the above-mentioned lightweight forsterite heat insulation brick comprises the following steps:

[0025] a) Forsterite and magnesite are mechanically crushed and sieved into forsterite sand with a particle size of 1-0.5mm and magnesite with a particle size of 1-0.5mm, and the magnesite is processed into magnesium with a particle size of ≤0.088mm sand powder;

[0026] B) taking the material according to the raw material weight ratio of the above formula;

[0027] c) First add ...

Embodiment 2

[0033] A light-weight forsterite heat-insulating brick, which is made of the following raw materials in proportion by weight: 65 parts of 1mm-0.5mm forsterite sand, 20 parts of 1mm-0.5mm magnesite; ≤0.088mm magnesite Powder 10 parts, ≤2μm SiO 2 8 parts of micro powder;

[0034] The binder is 4% sodium carboxymethyl cellulose aqueous solution, and its addition amount is forsterite sand, magnesite, magnesite and SiO 2 10% of the total weight.

[0035] The manufacturing method of the above-mentioned lightweight forsterite heat insulation brick comprises the following steps:

[0036] a) Forsterite and magnesite are mechanically crushed and sieved into forsterite sand with a particle size of 1-0.5mm and magnesite with a particle size of 1-0.5mm, and the magnesite is processed into magnesium with a particle size of ≤0.088mm sand powder;

[0037] B) taking the material according to the raw material weight ratio of the above formula;

[0038] c) First add forsterite sand and magn...

Embodiment 3

[0044] A light-weight forsterite heat-insulating brick, which is made of the following raw materials in proportion by weight: 70 parts of 1mm-0.5mm forsterite sand, 25 parts of 1mm-0.5mm magnesite, ≤0.088mm magnesia Powder 15 parts, ≤2μm SiO 2 10 parts of fine powder;

[0045] The binder is 5% sodium carboxymethyl cellulose aqueous solution, and its addition amount is forsterite sand, magnesite, magnesite and SiO 2 15% of the total weight.

[0046] The manufacturing method of the above-mentioned lightweight forsterite heat insulation brick comprises the following steps:

[0047] a) Forsterite and magnesite are mechanically crushed and sieved into forsterite sand with a particle size of 1-0.5mm and magnesite with a particle size of 1-0.5mm, and the magnesite is processed into magnesium with a particle size of ≤0.088mm sand powder;

[0048] b) taking materials according to the above-mentioned weight ratio of raw materials;

[0049] c) First add forsterite sand and magnesite...

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Abstract

The invention relates to a lightweight forsterite insulating brick and a manufacturing method thereof. The invention adopts a technical proposal that the insulating brick is prepared from the following raw materials in portion by weight: 60 to 70 portions of forsterite sand of 1 to 0.5 millimeter, 15 to 25 portions of magnesite of 1 to 0.5 millimeter, 5 to 15 portions of magnesite powder of less than or equal to 0.088 millimeter, and 5 to 10 portions of SiO2 micro powder of less than or equal to 2mu m; and the adding amount of a bonding agent is 5 to 15 percent of the gross weight of the raw materials. The lightweight forsterite insulating brick has the advantages of small volume weight, low heat conduction coefficient, good heat insulation effect, and high normal pressure strength. The manufacturing method adopts a hydraulic press to mold, not only can solve the problems such as difficult molding and uneven density of green bricks, is easy to strip a mold, does not need to cut a finished product, simultaneously reduces energy consumption, saves resource, reduces discharge of pollutants, and protects environment.

Description

Technical field: [0001] The invention relates to a refractory material mainly used for heat insulation of a glass kiln, in particular to a light forsterite heat insulation brick and a manufacturing method thereof. Background technique: [0002] With the development and use of high-quality and high-efficiency refractory materials for glass kilns, the insulation of glass kiln bodies has been fully realized. The fully insulated melting furnace can not only save about 20% of fuel, but also improve the working environment and reduce the loss of refractory masonry. In addition to requiring small bulk density, low thermal conductivity and good thermal insulation effect, the thermal insulation materials for glass kilns also It requires high refractoriness and certain mechanical strength, and it does not react with the refractory materials in contact, otherwise it will not only fail to keep warm, but will accelerate the damage of refractory materials. Both the quantity and quality o...

Claims

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Application Information

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IPC IPC(8): C04B35/66C04B35/622C03B5/43C04B35/20
Inventor 王守彬
Owner 营口青花耐火材料股份有限公司
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