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A kind of aluminum silicate lightweight gunning material and preparation method thereof

A technology for gunning material and aluminum silicate, which is applied in the field of aluminum silicate light-weight gunning material and its preparation, can solve the problems of reducing the high temperature performance of the gunning material, unfavorable storage of the gunning material, and high cost, so as to reduce the preparation cost, The effect of long storage period and low cost

Active Publication Date: 2019-10-11
靖州华鑫莫来石有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this technology is easy to construct and has high bonding strength, its main disadvantages are: first, the cost of mineral raw materials such as coke, kyanite or bauxite clinker is relatively high; Faster, once it meets water or absorbs moisture in the air, it is easy to deteriorate, which is not conducive to the storage of gunning materials; third, CaO in high alumina cement is easy to form a low melting phase with aluminum silicate, which reduces the high temperature performance of gunning materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] An aluminum silicate lightweight gunning material and a preparation method thereof. The steps of the preparation method described in this embodiment are:

[0034] The first step, according to the mass ratio of coal gangue: Suzhou soil: Guangxi white mud is 1: (0.5~0.7) : (0.3~0.5), mix coal gangue, Suzhou soil and Guangxi white mud for 5~8 minutes to obtain Mixture.

[0035] The second step, according to the mass ratio of the mixture: aluminum chloride: water is 1: (0.018 ~ 0.020): (0.05 ~ 0.06), sequentially add aluminum chloride and water to the mixture, mix 3 ~ 5 minutes, grouting molding, and then curing at 30~35°C for 6~8 hours to get the molded green body.

[0036] The third step is to place the molded green body in a muffle furnace, heat it at 1200-1240°C for 1-2 hours, cool it with the furnace, take it out of the furnace, crush it, and sieve it to obtain a powder with a particle size of 0.1-4mm. Heat treated materials.

[0037] The fourth step, according to ...

Embodiment 2

[0040] An aluminum silicate lightweight gunning material and a preparation method thereof. The steps of the preparation method described in this embodiment are:

[0041] The first step, according to the mass ratio of coal gangue: Suzhou soil: Guangxi white mud is 1: (0.6~0.8) : (0.3~0.5), mix coal gangue, Suzhou soil and Guangxi white mud for 5 to 8 minutes to obtain Mixture.

[0042] The second step, according to the mass ratio of the mixture: aluminum chloride: water is 1: (0.019 ~ 0.021): (0.05 ~ 0.06), sequentially add aluminum chloride and water to the mixture, mix 3 ~ 5 minutes, grouting molding, and then curing at 30~35°C for 6~8 hours to get the molded green body.

[0043]The third step is to place the molded green body in a muffle furnace, heat it at 1200-1240°C for 1-2 hours, cool it with the furnace, take it out of the furnace, crush it, and sieve it to obtain a powder with a particle size of 0.1-4mm. Heat treated materials.

[0044] The fourth step, according t...

Embodiment 3

[0047] An aluminum silicate lightweight gunning material and a preparation method thereof. The steps of the preparation method described in this embodiment are:

[0048] The first step, according to the mass ratio of coal gangue: Suzhou soil: Guangxi white mud is 1: (0.7~0.9) : (0.4~0.6), mix coal gangue, Suzhou soil and Guangxi white mud for 5 to 8 minutes to obtain Mixture.

[0049] The second step, according to the mass ratio of the mixture: aluminum chloride: water is 1: (0.020 ~ 0.022): (0.06 ~ 0.07), sequentially add aluminum chloride and water to the mixture, mix 3 ~ 5 minutes, grouting molding, and then curing at 30~35°C for 6~8 hours to get the molded green body.

[0050] The third step is to place the molded green body in a muffle furnace, heat it at 1200-1240°C for 1-2 hours, cool it with the furnace, take it out of the furnace, crush it, and sieve it to obtain a powder with a particle size of 0.1-4mm. Heat treated materials.

[0051] The fourth step, according ...

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Abstract

The invention relates to a lightweight aluminum silicate gunning material and a preparation method thereof. The technical solution is: according to the mass ratio of coal gangue: Suzhou soil: Guangxi white mud is 1: (0.5~1): (0.3~0.6) batching, mixing to obtain the mixture. According to the mass ratio of the mixture: aluminum chloride: water is 1: (0.018 ~ 0.023): (0.05 ~ 0.07), aluminum chloride and water are sequentially added to the mixture, mixed, grouting, curing , heat treatment under the condition of 1200~1240 ℃, cooling with the furnace, coming out of the furnace, crushing, sieving to obtain the heat treatment material with a particle size of 0.1~4mm; according to the heat treatment material: fly ash: silicon powder: aluminum silicate fiber: water The mass ratio is 1: (0.2~0.25): (0.1~0.15): (0.3~0.35): (0.4~0.45) ingredients, mixed in a mixer for 5~8 minutes, that is, aluminum silicate lightweight gunning material. The invention has low cost and simple process; the prepared product has low bulk density, high cold compressive strength and long storage period.

Description

technical field [0001] The invention belongs to the technical field of lightweight gunning materials. It specifically relates to an aluminum silicate lightweight gunning material and a preparation method thereof. Background technique [0002] Gunning material is a kind of amorphous refractory material formed by refractory raw materials with a certain particle size distribution, binder and retarder, etc. It is widely used in the construction of high-temperature industrial kilns such as blast furnaces, converters, electric furnaces and cement rotary kilns. with tinkering. [0003] At present, aluminum silicate gunning materials are mainly made of burnt gemstone, kyanite or bauxite clinker as raw materials, alumina micropowder as a burning agent, combined with high alumina cement, and mixed (Wang Xidong, Etc. "The change of aluminum silicate gunning material after burning and its influencing factors", "Refractories", 1996, 30(6): pp337~339). Although this technology is easy ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 张寒赵惠忠
Owner 靖州华鑫莫来石有限公司
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