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Refractory brick and preparation method thereof

A technology of refractory bricks and refractory aggregates, applied in the field of refractory bricks and their preparation, can solve problems affecting economic benefits, high energy consumption, and multiple energy, and achieve the effects of increasing economic benefits, reducing energy consumption, and avoiding environmental pollution

Inactive Publication Date: 2017-10-27
过春明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the particle size of the powder is generally less than 0.088mm. In the process of crushing and grinding waste electric porcelain to less than 0.088mm, more energy is consumed, resulting in higher energy consumption and affecting economic benefits.

Method used

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  • Refractory brick and preparation method thereof
  • Refractory brick and preparation method thereof
  • Refractory brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Batching is carried out according to the following components by mass percentage:

[0042]

[0043] Preparation process: Prepare refractory bricks according to the steps of batching, mixing, molding, drying, and sintering, wherein the sintering temperature is 1450°C, and the sintering time is 30h.

[0044] Performance test, the bulk density of the refractory brick obtained in this embodiment is 2.38g / cm 3 , the apparent porosity is 21%, the compressive strength is 63MPa, the load softening temperature is 1361°C, and the thermal shock stability is 26 times.

Embodiment 2

[0046]Batching is carried out according to the following components by mass percentage:

[0047]

[0048]

[0049] Preparation process: Prepare refractory bricks according to the steps of batching, mixing, molding, drying, and sintering. The sintering temperature is 1350°C and the sintering time is 32 hours.

[0050] Performance test, the bulk density of the refractory brick obtained in this embodiment is 2.31g / cm 3 , the apparent porosity is 19%, the compressive strength is 55MPa, the load softening temperature is 1280°C, and the thermal shock stability is 23 times.

Embodiment 3

[0052] Batching is carried out according to the following components by mass percentage:

[0053]

[0054] Preparation process: Prepare refractory bricks according to the steps of batching, mixing, molding, drying, and sintering. The sintering temperature is 1400°C and the sintering time is 25 hours.

[0055] Performance test, the bulk density of the refractory brick obtained in this embodiment is 2.33g / cm 3 , the apparent porosity is 20%, the compressive strength is 59MPa, the load softening temperature is 1323°C, and the thermal shock stability is 25 times.

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Abstract

The invention relates to a refractory brick and a preparation method thereof. The refractory brick is prepared from the following components in parts by mass: 40 to 45 parts of refractory aggregates, 30 to 35 parts of middling materials, 10 to 15 parts of refractory powder, 5 to 10 parts of an aminocarboxylic chelating agent, 5 to 8 parts of a binding agent and 5 to 15 parts of bauxite. According to the refractory brick disclosed by the invention, waste electrical porcelain is used as the raw material of the refractory brick and is prevented from polluting environment; during a process of preparing the refractory brick, the addition amount of the refractory powder is reduced to 15 weight percent or less, energy consumption generated by grinding the refractory powder is effectively reduced, and economic benefit is increased; meanwhile, the strength and the heat stability of refractory materials are increased on the premise that good compactness of the refractory brick is ensured, and a good application prospect is obtained.

Description

technical field [0001] The invention relates to the field of refractory material preparation, in particular to a refractory brick and a preparation method thereof. Background technique [0002] Waste electric porcelain has been treated as industrial waste for a long time, which pollutes the environment and causes waste. If the waste electric porcelain is used instead of clay clinker as the raw material for the production of refractory bricks, the above two problems can be solved at the same time. [0003] In the traditional preparation process of unshaped refractories, it is necessary to mix aggregates and powders to prepare raw materials. The powder generally plays the role of linking or cementing the refractory aggregate under the action of high temperature, so that it can obtain high temperature physical and mechanical properties and performance. Since the main purpose of the powder is to fill the gaps of the refractory aggregate, its demand is relatively large in the tr...

Claims

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Application Information

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IPC IPC(8): C04B35/66C04B35/622C04B38/00
CPCC04B35/62204C04B35/66C04B38/0038C04B2235/3217C04B2235/656C04B2235/77C04B2235/96C04B2235/9607C04B38/0074
Inventor 过春明
Owner 过春明