Preparation method of mullite spherical aggregate reinforced refractory material

A technology of refractory material and mullite, applied in the field of refractory material, can solve the problems of increased manufacturing cost, unsatisfactory size, waste, etc., and achieves the effects of improving performance, being conducive to close stacking, and low production cost

Active Publication Date: 2019-03-15
SHANDONG JINPU NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the whole process of preparing ceramsite sand, the mesh products on the sieve and under the sieve can only be piled up as waste. The performance of the waste is the same as that of the product, except that the size does not meet the requirements. The final waste is regrinded, resulting in A great waste, increased manufacturing costs

Method used

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  • Preparation method of mullite spherical aggregate reinforced refractory material
  • Preparation method of mullite spherical aggregate reinforced refractory material
  • Preparation method of mullite spherical aggregate reinforced refractory material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] (1) Raw material composition

[0055] Proportioning (parts by weight): 70 parts of waste ceramsite sand (aggregate), 30 parts of spherical ceramsite sand semi-finished products (matrix);

[0056] Wherein the composition of waste ceramsite sand is (weight ratio): account for 40% on the 20 mesh sieve, and account for 60% under the 140 mesh sieve;

[0057] Spherical ceramsite sand semi-finished products are added in coarse type, and its specific size distribution is (weight ratio): 10-60 mesh accounts for 60%, 60-120 mesh accounts for 30%, and 120 mesh or more accounts for 10%.

[0058] (2) Collect the waste ceramsite sand according to the mesh number required in step (1) for use, and match according to the ratio;

[0059] (3) In the semi-finished product stage of ceramsite sand production, the spherical semi-finished product is collected through a double-layer swinging sieve to collect the mesh number required by step (1) for use, and the spherical semi-finished product ...

Embodiment 2

[0066] (1) Raw material composition

[0067] Proportioning (parts by weight): 65 parts of waste ceramsite sand (aggregate), 35 parts of spherical ceramsite sand semi-finished products (matrix),

[0068] Wherein the composition of waste ceramsite sand is (weight ratio): wherein on the 20 mesh sieve accounts for 50%, and under the 140 mesh sieve accounts for 50%;

[0069] Among them, the spherical ceramsite sand semi-finished product is added in the middle class, and its specific size distribution is (weight ratio): 10-60 mesh accounts for 30%, 60-120 mesh accounts for 40%, and 120 mesh or more accounts for 30%;

[0070] (2) Collect the waste ceramsite sand according to the mesh number required in step (1) for use, and match according to the ratio;

[0071] (3) In the semi-finished product stage of ceramsite sand production, the spherical semi-finished product is passed through a double-layer swinging sieve to collect the mesh number required in step (1) for use, and the spheri...

Embodiment 3

[0078] (1) Raw material composition

[0079] Proportioning (parts by weight): 70 parts of waste ceramsite sand (aggregate), 30 parts of spherical ceramsite sand semi-finished products (matrix);

[0080] The composition of described waste ceramsite sand is (weight ratio): account for 60% on the 20 mesh sieve, account for 40% under the 140 mesh sieve;

[0081] Spherical ceramsite sand semi-finished products are added by fine class, and its specific size distribution is (weight ratio): 10-60 mesh accounts for 10%, 60-120 mesh accounts for 30%, and 120 mesh or more accounts for 60%;

[0082] (2) Collect the waste ceramsite sand according to the mesh number required in step (1) for use, and match according to the ratio;

[0083] (3) In the semi-finished product stage of ceramsite sand production, the spherical semi-finished product passes through the double-layer swinging sieve to collect the mesh number required in step (1) for use, and matches the spherical semi-finished product...

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Abstract

The invention discloses a preparation method of a mullite spherical aggregate reinforced refractory material. According to the preparation method, mullite ceramsite sand waste material is taken as a spherical aggregate, spherical ceramsite sand semi-finished products of different size grades are added as a matrix, and the mullite spherical aggregate reinforced refractory material is obtained via pressureless self-padding molding and sintering in a high temperature kiln. The spherical waste ceramsite sand is taken as the aggregate of the mullite spherical aggregate reinforced refractory material, the spherical aggregate possesses high fluidity, is beneficial for close packing and uniformity of aggregate distribution, and application performance of the mullite spherical aggregate reinforced refractory material is improved via reinforcing with the aggregate; the spherical ceramsite sand semi-finished product matrix is capable of increasing the ratio of spherical raw materials, application of a conventional powdery matrix is avoided, padding and contacting of the spherical aggregate with the spherical matrix is realized, and pressureless self-padding molding is realized. The mullite spherical aggregate reinforced refractory material is suitable to be applied in fields with high requirements on fluidity, transportation performance, air impermeability, and heat insulation properties.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a preparation method of mullite spherical aggregate reinforced refractory materials. Background technique [0002] Refractories are a class of enabling materials that ensure the normal operation of high-temperature industries, and even high-temperature industries enable certain technological progress, making it possible to manufacture and process steel, cement, non-ferrous metals, glass, ceramics, and various machinery and chemical products. The conventional refractory preparation process is: mixing aggregates (irregular particles) and matrix raw materials (fine powder), and then using different molding processes to prepare qualitative refractory materials or directly use them as castables. For a long time, the improvement and innovation of refractory performance have focused more on the matrix. The characteristics of the aggregate itself and the interac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66C04B38/00C04B33/04
CPCC04B33/04C04B35/66C04B38/009
Inventor 赵友谊董祚宏曾华生王琦王瑞生王晋槐
Owner SHANDONG JINPU NEW MATERIAL CO LTD
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