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A kind of foamed ceramics produced by using ceramic pressing mud and its preparation method

A technology of foamed ceramics and pressed mud, applied in the field of foamed ceramics, can solve the problems of difficulty in stability, unfavorable performance of foamed ceramics, influence, etc., and achieve the effects of improving compressive strength, high utilization rate of tailings, and reducing production costs.

Active Publication Date: 2022-04-19
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, due to the diversity of the components of the pressed mud, it is difficult to stabilize it in the process of production and utilization, which has an adverse effect on the performance of the produced foamed ceramics

Method used

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  • A kind of foamed ceramics produced by using ceramic pressing mud and its preparation method
  • A kind of foamed ceramics produced by using ceramic pressing mud and its preparation method

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preparation example Construction

[0049] 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:

[0050] S1: Mix various raw materials evenly according to the formula to obtain a mixture;

[0051] S2: ball milling the mixture to obtain a slurry;

[0052] Wherein, the fineness of the slurry is 250 mesh sieve <0.5%.

[0053] S3: subjecting the slurry to spray granulation to obtain a powder;

[0054] Specifically, after the slurry is stale in the slurry tank for 24 to 48 hours, it is pumped to the spray tower for spray drying and granulation; in the powder obtained by granulation, the proportion of particles above 40 mesh is ≥ 20wt%. The powder has good fluidity, which is beneficial to the subsequent distributing process.

[0055] S4: distributing the powder into a high-tem...

Embodiment 1

[0064] This embodiment provides a foamed ceramic, the formula of which is: 85 parts of Luoyuan red tailings, 6.5 parts of ceramic press mud, 3 parts of lithium china stone, 4 parts of black mud, 1.2 parts of silicon carbide, and 0.3 parts of manganese dioxide;

[0065] Among them, the ceramic press mud is composed of the following components: SiO 2 68.5%, Al 2 o 3 17.4%, Fe 2 o 3 0.6%, TiO 2 0.2%, CaO 3.7%, MgO 0.1%, K 2 O 4.4%, Na 2 O 3.6%, LOI 1.5%;

[0066] Its preparation method is:

[0067] (1) According to the formula, various raw materials are mixed uniformly to obtain a mixture;

[0068] (2) ball milling the mixture to obtain a slurry;

[0069] Wherein, the fineness of the slurry is 0.5% after sieving through a 250 mesh sieve.

[0070] (3) Spray granulating the slurry to obtain powder;

[0071] (4) distributing the powder into the high-temperature saggar;

[0072] (5) The high-temperature sagger is fired in a kiln to obtain a finished foamed ceramic prod...

Embodiment 2

[0075] This embodiment provides a foamed ceramic, the formula of which is: 87 parts of Luoyuan red tailings, 7.5 parts of ceramic pressing mud, 2 parts of lithium china stone, 2.2 parts of washed mud, 1 part of silicon carbide, and 0.3 parts of manganese dioxide;

[0076] Among them, the ceramic press mud is composed of the following components: SiO 2 68.5%, Al 2 o 3 17.4%, Fe 2 o 3 0.6%, TiO 2 0.2%, CaO 3.7%, MgO 0.1%, K 2 O 4.4%, Na 2 O 3.6%, LOI 1.5%;

[0077] Its preparation method is:

[0078] (1) According to the formula, various raw materials are mixed uniformly to obtain a mixture;

[0079] (2) ball milling the mixture to obtain a slurry;

[0080] Wherein, the fineness of the slurry is 0.5% with a 250-mesh sieve.

[0081] (3) Spray granulating the slurry to obtain powder;

[0082] (4) distributing the powder into the high-temperature saggar;

[0083] (5) The high-temperature sagger is fired in a kiln to obtain a finished foamed ceramic product.

[0084] A...

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Abstract

The invention discloses a foamed ceramic produced by using ceramic pressing mud, which is mainly made of the following raw materials in parts by weight: 85-95 parts of Luoyuan red tailings, 1-9 parts of ceramic pressing mud, and 1-5 parts of lithium china stone , 0.5 to 5 parts of clay, 0.1 to 2 parts of foaming agent, and 0.1 to 1 part of stabilizer; the sum of the weight parts of each raw material component is 100 parts; wherein, the ceramic pressing mud is mainly composed of the following components in weight percentage : SiO 2 68~72%, Al 2 o 3 16~19%, Fe 2 o 3 0.5~1.5%, TiO 2 0~0.5%, CaO 3~4%, MgO 0.01~0.5%, K 2 O 4~6%, Na 2 O 2.5-4%, LOI 1-3%. The present invention adopts Luoyuan red tailings and ceramic pressing mud as main raw materials to prepare foamed ceramics, and the utilization rate of the tailings is high, which realizes resource utilization of ceramic pressing mud and Luoyuan red tailings, high value-added utilization, energy saving and environmental protection, and also reduces the cost of hair loss. The production cost of foam ceramics.

Description

technical field [0001] The invention relates to the field of foamed ceramics, in particular to a foamed ceramic produced by using ceramic pressing mud and a preparation method thereof. Background technique [0002] Ceramic tiles are plate or block ceramic products produced by mixing, grinding, powdering, molding, sintering, edging or polishing of clay and other inorganic non-metallic raw materials. The sewage of the ceramic brick factory is mainly divided into three categories: raw material workshop wastewater, edging and polishing wastewater, and environmental protection equipment wastewater. The final slurry is pressed to form ceramic pressing mud. Generally speaking, the pressing mud of ceramic brick factories will reach 5% to 10% of the raw material. However, due to the high content of Fe, Ca, Ti, SiC and other harmful substances in the pressed mud, it cannot be directly used in the traditional ceramic tile production process, resulting in a large amount of waste of res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/02C04B33/132C04B33/32
CPCC04B38/02C04B33/1324C04B33/132C04B33/32C04B2235/3472C04B2235/3826C04B2235/3267C04B2235/9607C04B38/0067Y02P40/60
Inventor 朱祥辉
Owner FUJIAN DESHENG NEW BUILDING MATERIAL CO LTD
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