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Foam ceramic and preparation method thereof

A technology of foaming ceramics and foaming agents, which is applied in the fields of ceramic products, ceramic material production, clay products, etc., which can solve the problems of long firing cycle, poor stability of slag material, and high energy consumption, so as to reduce bulk density and heat conduction Coefficient, save production cost, good heat insulation effect

Inactive Publication Date: 2019-12-20
FUJIAN DESHENG NEW BUILDING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the added value of this permeable brick (square brick) is low; and because Luo Yuanhong has poor plasticity, a large amount of bonding base material and liquid glue are added to the formula, which reduces the amount of Luo Yuanhong used
Therefore, it is impossible to realize large-scale resource utilization and high value-added utilization of Luoyuan red tailings
[0004] On the other hand, most of the existing foamed ceramics for construction use tile factory polishing waste or other waste (such as granite waste, fly ash, etc.) as the base material; among them, the polishing waste is greatly affected by the region
Different origins and different products have different components of polishing slag, and the stability of the slag is relatively poor
The traditional granite waste, due to the specificity of its composition, often has a low utilization rate
For example, in the Chinese patent CN106187087A, a facing composite foam ceramic based on granite tailings is disclosed. 1-10%, stabilizer 0.5-2%, debonding agent 0-2%, the utilization efficiency of the granite waste residue is low, and the additive dosage is high, the firing cycle is long and the energy consumption is high, resulting in high production cost

Method used

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  • Foam ceramic and preparation method thereof

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preparation example Construction

[0055] In order to improve the various properties of the foamed ceramics in the present invention, it is also necessary to cooperate with a specific preparation method. Specifically, refer to figure 1 , the preparation method of foam ceramics among the present invention comprises the following steps:

[0056] S1: Mix various raw materials evenly according to the formula to obtain a mixture;

[0057] S2: ball milling the mixture to obtain a slurry;

[0058] Wherein, the fineness of the slurry is 250 mesh sieve <0.5%. It should be noted that in the general production process of foamed ceramics, the fineness is controlled at about 3-5% on a 250-mesh sieve. However, the present invention reduces the content of clay, so by reducing the fineness of the slurry, the suspension of the slurry and the fluidity of the powder after granulation are improved.

[0059] S3: subjecting the slurry to spray granulation to obtain a powder;

[0060] Specifically, after the slurry is stale in th...

Embodiment 1

[0068] This embodiment provides a foamed ceramic, the formula of which is: 90 parts of Luoyuan red tailings, 9 parts of sandbag soil, 0.1 parts of foaming agent, and 0.9 parts of stabilizer;

[0069] Among them, Luoyuan red tailings are composed of the following components: SiO 2 72.8%, Al 2 o 3 13.1%, Fe 2 o 3 1.9%, CaO1.0%, MgO0.2%, K 2 O 4.0%, Na 2 O 4.8%, LOI 2.2%;

[0070] Sandbag soil is composed of the following components: SiO 2 74.1%, Al 2 o 3 12.4%, Fe 2 o 3 1.2%, CaO 0.4%, MgO 0.08%, K 2 O 4.52%, Na 2 O 4.3%, LOI 3%;

[0071] The foaming agent is selected from carbon powder, and the stabilizer is selected from manganese dioxide.

[0072] Its preparation method is:

[0073] (1) According to the formula, various raw materials are mixed uniformly to obtain a mixture;

[0074] (2) ball milling the mixture to obtain a slurry;

[0075] Wherein, the fineness of the slurry is 0.5% after sieving through a 250 mesh sieve.

[0076] (3) Spray granulating t...

Embodiment 2

[0081] This embodiment provides a foamed ceramic, the formula of which is: 95 parts of Luoyuan red tailings, 1 part of black mud, 3 parts of recycled materials for ceramic grinding blocks, and 1 part of manganese dioxide;

[0082] Among them, Luoyuan red tailings are composed of the following components: SiO 2 70.7%, Al 2 o 3 13.6%, Fe 2 o 3 1.2%, CaO1.4%, MgO0.4%, K 2 O 5.2%, Na 2 O 4.5%, LOI 3%;

[0083] Black mud consists of the following components: SiO 2 64.6%, Al 2 o 3 23.4%, Fe 2 o 3 2.8%, CaO 0.6%, MgO 0.4%, K 2 O 1.7%, Na 2 O 0.3%, LOI 6.2%.

[0084] Its preparation method is:

[0085] (1) According to the formula, various raw materials are mixed uniformly to obtain a mixture;

[0086] (2) ball milling the mixture to obtain a slurry;

[0087] Wherein, the fineness of the slurry is 0.3% on a 250-mesh sieve.

[0088] (3) Spray granulating the slurry to obtain powder;

[0089] (4) distributing the powder into the high-temperature saggar;

[0090]...

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Abstract

The invention discloses a foam ceramic. The foam ceramic is mainly prepared from the following raw materials in parts by weight: 90-95 parts of Bainbrook brown tailings, 1-9 parts of clay, 0.1-3 partsof a foaming agent and 0.1-1 part of a stabilizer. The Bainbrook brown tailings is mainly prepared from the following components in percentage by weight: 68-73% of SiO2, 12-15% of Al2O3, 1.2-2% of Fe2O3, 0.5-1.5% of CaO, 0.2-0.5% of MgO, 4-5.5% of K2O, 3-5% of Na2O and 0.5-3% of LOI. The invention further discloses a preparation method of the foam ceramic. According to the foam ceramic and the preparation method of the foam ceramic, the Bainbrook brown tailings is used as a main base material to prepare foam ceramic tiles, and the resource utilization of the Bainbrook brown tailings is effectively realized; and the prepared foam ceramic tiles have high compressive strength, low water absorption and low heat conductivity coefficient.

Description

technical field [0001] The invention relates to the field of inorganic non-metallic materials, in particular to a foamed ceramic and a preparation method thereof. Background technique [0002] Luoyuanhong is a kind of granite produced in Luoyuan County, Fuzhou City, Fujian Province. It has bright colors and outstanding decorative properties. It is widely used as materials for panels, floor coverings, countertops, carvings, various building and garden stones. During the mining process of Luoyuanhong, a large amount of Luoyuanhong tailings were produced, which caused great pressure on the local ecological environment. Therefore, how to make resource utilization of Luoyuan red tailings is an urgent problem to be solved. [0003] Chinese patent CN108558359A discloses a technical scheme of using Luo Yuanhong to prepare permeable bricks, which uses 80-100 parts of stone fragments, 3-12 parts of bonding base material, and 3-12 parts of liquid glue to prepare sintered permeable bri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B33/13C04B38/06C04B38/02
CPCC04B33/1324C04B33/1321C04B33/131C04B38/068C04B38/02C04B38/067C04B2235/3418C04B2235/3217C04B2235/3272C04B2235/3208C04B2235/3206C04B2235/3201C04B2235/3826C04B2235/422C04B2235/3267C04B2235/96C04B2235/77C04B2235/9607C04B38/0067Y02P40/60
Inventor 朱祥辉
Owner FUJIAN DESHENG NEW BUILDING MATERIAL CO LTD
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