Siliceous refractory material and preparation method thereof

A refractory material and siliceous technology, applied in the field of refractory materials, can solve the problem that the strength of refractory materials is not very high, and achieve the effects of improving life and economic benefits, stable volume, and reducing heat dissipation loss.

Inactive Publication Date: 2019-11-22
浙江卡斯特科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] There are some problems in the above-mentioned prior art, such as the strength of the refractory material is not very high, etc., therefore, we put forward higher requirements

Method used

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  • Siliceous refractory material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A silicon refractory material is made of the following raw materials in parts by weight:

[0024] 40 parts of high-purity silica fume, 35 parts of quartz, 10 parts of quartz sand, 20 parts of silica sand, 5 parts of clay, 10 parts of glass fiber, 15 parts of plant fiber, 2 parts of polyvinyl alcohol aqueous solution, 3 parts of carboxymethyl cellulose aqueous solution, 0.1 part of superplasticizer, 1 part of organic acid, appropriate amount of water.

[0025] Among them, the concentration of the aqueous solution of polyvinyl alcohol is 3 wt%.

[0026] Wherein, the concentration of the aqueous solution of carboxymethyl cellulose is 1wt%;

[0027] Among them, the organic acid is a mixture of tartaric acid, citric acid and oxalic acid.

[0028] Among them, the water reducing agent is made by mixing sodium polyacrylate, sodium tripolyphosphate and sodium hexametaphosphate.

[0029] Among them, the particle size of the quartz sand is 0.6mm.

Embodiment 2

[0031] A silicon refractory material is made of the following raw materials in parts by weight:

[0032] 60 parts of high-purity silica fume, 20 parts of quartz, 15 parts of quartz sand, 10 parts of silica sand, 10 parts of clay, 5 parts of glass fiber, 10 parts of plant fiber, 3 parts of polyvinyl alcohol aqueous solution, 2 parts of carboxymethyl cellulose aqueous solution, 0.5 part of superplasticizer, 0.5 part of organic acid, appropriate amount of water.

[0033] Among them, the concentration of the aqueous solution of polyvinyl alcohol is 8 wt%.

[0034] Wherein, the concentration of the aqueous solution of carboxymethyl cellulose is 3wt%;

[0035] Among them, the organic acid is a mixture of tartaric acid, citric acid and oxalic acid.

[0036] Among them, the water reducing agent is made by mixing sodium polyacrylate, sodium tripolyphosphate and sodium hexametaphosphate.

[0037] Among them, the particle size of the quartz sand is 2mm.

Embodiment 3

[0039] A silicon refractory material is made of the following raw materials in parts by weight:

[0040] 50 parts of high-purity silica fume, 28 parts of quartz, 12.5 parts of quartz sand, 15 parts of silica sand, 7.5 parts of clay, 7.5 parts of glass fiber, 12.5 parts of plant fiber, 2.5 parts of polyvinyl alcohol aqueous solution, 2.5 parts of carboxymethyl cellulose aqueous solution, 0.3 parts of superplasticizer, 0.75 parts of organic acid, and appropriate amount of water.

[0041] Wherein, the concentration of the aqueous solution of polyvinyl alcohol is 5 wt%.

[0042] Wherein, the concentration of the aqueous solution of carboxymethyl cellulose is 2wt%;

[0043] Among them, the organic acid is a mixture of tartaric acid, citric acid and oxalic acid.

[0044] Among them, the water reducing agent is made by mixing sodium polyacrylate, sodium tripolyphosphate and sodium hexametaphosphate.

[0045] Among them, the particle size of the quartz sand is 1 mm.

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Abstract

The invention provides a siliceous refractory material and a preparation method thereof and relates to the field of refractory materials. The siliceous refractory material is prepared from the following raw materials: high-purity silicon powder, quartz, quartz sand, silica sand, clay, glass fibers, plant fibers, a polyvinyl alcohol aqueous solution, a carboxymethyl cellulose aqueous solution, a water reducing agent, an organic acid and a proper amount of water. The preparation method of the siliceous refractory material comprises the steps of blank preparation, blank forming and drying and blank high-temperature calcination. The glass fibers and the plant fibers are added, so the normal-temperature compressive strength of the refractory material is improved, the product is high in load deformation starting temperature, high in refractoriness and stable in size, the product further has good high-temperature resistance, erosion resistance, thermal shock resistance and abrasion resistance, the heat dissipation loss of the product is reduced, the service life of a sintering furnace is prolonged, and the requirement for economic benefits is met.

Description

technical field [0001] The invention relates to the field of refractory materials, in particular to a silicon refractory material and a preparation method thereof. Background technique [0002] my country's coke production equipment has been hovering at the scale of 4.6m-6m. This equipment has a backward state of high energy consumption, large emissions, and low efficiency. Due to the high thermal conductivity and poor thermal shock stability of the refractory products used to build this equipment , poor corrosion resistance, and poor volume stability at high temperatures restrict the development of my country's coke industry. In order to change this backward production status, my country's coke industry is developing in the direction of large-scale, high efficiency, energy saving and environmental protection, and a 7.63m coke oven has been introduced. 7.63m coke oven requires refractory materials: long-term use temperature is high, normal temperature compressive strength is...

Claims

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Application Information

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IPC IPC(8): C04B35/66C04B35/515
CPCC04B35/515C04B35/66C04B2235/3418C04B2235/349C04B2235/447C04B2235/5216C04B2235/5427C04B2235/602C04B2235/606C04B2235/656C04B2235/6567C04B2235/9607C04B2235/9615
Inventor 杨金荣
Owner 浙江卡斯特科技有限公司
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