Forsterite zirconia brick and producing method thereof

A technology of olivine zirconium brick and manufacturing method, which is applied in the field of refractory materials, can solve problems such as inconvenient design and production of kiln, erosion of glass kiln lattice body, deformation of lattice body, etc., and achieve the goals of eliminating chromium pollution, convenient design and construction, and cost reduction Effect

Inactive Publication Date: 2009-09-30
中国建筑材料科学研究院大石桥镁砖厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Magnesia-chrome bricks are easy to form Cr in use 6+ , has a toxic effect on the environment, which is well known; in addition, when building a glass kiln lattice body, due to the need for different matching bricks, it brings inconvenience to the design and production of the kiln. What is more serious is that if different matching bricks If the height of the design is not enough, the high temperature alkaline gas or acid rain will cause serious erosion to the surrounding glass kiln lattice body during operation, causing the lattice body to deform

Method used

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  • Forsterite zirconia brick and producing method thereof
  • Forsterite zirconia brick and producing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The manufacture method of a kind of forsterite zirconium brick is as follows:

[0026] 1) Crushing and screening of raw materials: crush magnesia (MgO 95%) and forsterite sand in a crusher or a ball mill, and sieve through a 3mm sieve, a 1mm sieve and a 0.088mm sieve respectively to make a particle size of Magnesia and forsterite sand of 1mm to 3mm, magnesia and forsterite sand with a particle size of 0.088mm to 1mm, fine powder of magnesia and forsterite sand with a particle size of ≤0.088mm; zircon sand ( ZrO 65%) made particle size ≤ 0.088mm;

[0027] 2) Mixing: According to the weight ratio in Table 1, weigh the pellets of magnesia and forsterite sand with a particle size of 1 mm to 3 mm and a particle size of 0.088 mm to 1 mm, and add them to the sand mixer for dry mixing for 3 minutes , then add pulp waste liquid and calcium lignosulfonate, wet mix for 3 minutes, then add magnesia fine powder, forsterite sand fine powder and zircon sand fine powder with particle ...

Embodiment 2

[0034] The manufacture method of a kind of forsterite zirconium brick is as follows:

[0035] 1) Crushing and screening of raw materials: crush magnesia (MgO 96%) and forsterite sand in a crusher or a ball mill, and sieve through a 3mm sieve, a 1mm sieve and a 0.088mm sieve respectively to make a particle size of Magnesia and forsterite sand of 1mm to 3mm, magnesia and forsterite sand with a particle size of 0.088mm to 1mm, fine powder of magnesia and forsterite sand with a particle size of ≤0.088mm; zircon sand ( ZrO 66%) made particle size ≤ 0.088mm;

[0036] 2) Mixing: According to the weight ratio in Table 1, weigh the pellets of magnesia and forsterite sand with a particle size of 1 mm to 3 mm and a particle size of 0.088 mm to 1 mm, and add them to the sand mixer for dry mixing for 4 minutes , then add pulp waste liquid and calcium lignosulfonate, wet mix for 5 minutes, then add magnesia fine powder, forsterite sand fine powder and zircon sand fine powder with particle ...

Embodiment 3

[0043] The manufacture method of a kind of forsterite zirconium brick is as follows:

[0044] 1) Crushing and screening of raw materials: crush magnesia (MgO 96.8%) and forsterite sand in a crusher or a ball mill, and sieve through a 3mm sieve, a 1mm sieve and a 0.088mm sieve respectively to make a particle size of Magnesia and forsterite sand of 1mm to 3mm, magnesia and forsterite sand with a particle size of 0.088mm to 1mm, fine powder of magnesia and forsterite sand with a particle size of ≤0.088mm; zircon sand ( ZrO 66.5%) made particle size ≤0.088mm;

[0045] 2) Mixing: According to the weight ratio in Table 1, weigh the pellets of magnesia and forsterite sand with a particle size of 1 mm to 3 mm and a particle size of 0.088 mm to 1 mm, and add them to the sand mixer for dry mixing for 4 minutes , then add pulp waste liquid and calcium lignosulfonate, wet mix for 6 minutes, then add magnesia fine powder, forsterite sand fine powder and zircon sand fine powder with partic...

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Abstract

The invention relates to a forsterite zirconia brick and a producing method thereof. Magnesium sand, forsterite sand, zircon sand, sulphite liquor and calcium lignosulphonate are mixed according to the weight part. The producing method of the forsterite zirconia brick is as follows: granule materials of the magnesium sand and the forsterite sand are added to a sand mixer to be mixed without water for 3 to 5 minutes; the sulphite liquior and the calcium lignosulphonate are added to be mixed with water for 3 to 7 minutes, and then the fine powder of the magnesium sand, the forsterite sand and the zircon sand is added to be mixed for 8 to 12 minutes; the mixed material is added to a mould to be pressed into a brick body; the shaped brick body is dried in a drying kiln at 70-110 DEG C no less than 12 hours until the water content in the dried brick body is not higher than 8 percent; the dried brick body is sent into a tunnel kiln to be fired at 1580-1680 DEG for 3 to 5 hours. The forsterite zirconia brick has no toxin or harm and is the fireproof alkali brick suitable for the middle part and the upper part of the glass kiln.

Description

technical field [0001] The invention belongs to the field of refractory materials, and in particular relates to an alkaline refractory material forsterite zirconium brick suitable for a lattice body of a glass regenerator and a manufacturing method thereof. Background technique [0002] When the glass kiln is in operation, there is a large amount of high-temperature alkaline gas in the upper part, namely Glauber's salt; the middle part is prone to acid rain due to the lower temperature, and the middle and upper parts may also produce acid rain if the temperature is low due to temperature changes. Therefore, according to the operating characteristics of the glass kiln, different matching bricks are usually used when constructing the glass kiln body: the middle part is magnesia-chrome bricks, the upper middle part is magnesia bricks, and the upper part is magnesia bricks or magnesia-zirconium bricks. Magnesia-chrome bricks are easy to form Cr in use 6+ , has a toxic effect on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 尹德柱刘明伟唐锐
Owner 中国建筑材料科学研究院大石桥镁砖厂
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