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Composition for preparing ultra-light ceramsite, ceramsite and preparation method thereof

A composite, ultra-light ceramic technology, applied in the application, ceramic products, clay products and other directions, can solve the problems of poor comprehensive utilization rate, jarosite slag pollution, environmental impact, etc., achieve low water absorption, reduce solid waste discharge, The effect of effective preparation

Active Publication Date: 2022-07-15
长沙中瓷资源循环利用有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pollution of the alumite slag to the environment is potential and long-term. Once serious consequences are caused, it will have a huge impact on the environment. The common disposal methods include landfill, etc., and the comprehensive utilization rate is poor.

Method used

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  • Composition for preparing ultra-light ceramsite, ceramsite and preparation method thereof
  • Composition for preparing ultra-light ceramsite, ceramsite and preparation method thereof
  • Composition for preparing ultra-light ceramsite, ceramsite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0041] The preparation method of ceramsite is not particularly limited, and it can be prepared by a method known in the art. In the process, an intermittent firing process can be used, or a rotary kiln can be used for continuous firing.

[0042] Examples are prepared as follows:

[0043] Each component is made into powder, mixed evenly, and an appropriate amount of water is added to the mixed powder to form a ball to make a ball blank;

[0044] The obtained ball blank is dried, preheated, fired at high temperature, and cooled to obtain ceramsite.

[0045] The ceramsite prepared by the method has the excellent properties of the above-mentioned product examples, and at the same time, the process is simple, and is suitable for popularization and use.

[0046] An example of the method for making each component into powder is: after each component is crushed, it is dried, ball milled, and sieved. An example of the particle size of the powder after sieving is not coarser than 100 ...

Embodiment 1

[0067] The composition for preparing ultra-light ceramsite is composed of shale, jarosite slag and aluminum-containing silicon carbide waste, and the mass ratio is 185:15:2.

[0068] The preparation steps of ceramsite are as follows:

[0069] (1) Drying and grinding: the crushed shale, jarosite slag and aluminum-containing silicon carbide waste are dried in a 105°C oven to constant weight, and the dried materials are put into a ball mill and ground to a degree of 100 mesh. Sieve to get powder.

[0070] (2) Weighing: Weigh the powders of shale, jarosite slag and aluminum-containing silicon carbide waste in a mass ratio of 185:15:2.

[0071] (3) Mixing: Put the weighed powder into the ball mill and mix for 5min.

[0072] (4) Forming: add appropriate amount of water to the mixed material and fully extrude it into a ball, put the ball into a sliver with an outlet hole of 10mm and extrude it into a bar, and use a 10mm ball pressing plate to press the extruded bar into a bar. Bal...

Embodiment 2

[0078] The composition for preparing ultra-light ceramsite is composed of shale, jarosite slag and aluminum-containing silicon carbide waste, and the mass ratio is 90:10:1.

[0079] The preparation steps of ceramsite are as follows:

[0080] (1) Drying and grinding: the crushed shale, jarosite slag and aluminum-containing silicon carbide waste are dried in a 105°C oven to constant weight, and the dried materials are put into a ball mill and ground to a degree of 100 mesh. Sieve to get powder.

[0081] (2) Weighing: Weigh the powders of shale, jarosite slag and aluminum-containing silicon carbide waste in a mass ratio of 90:10:1.

[0082] (3) Mixing: Put the weighed powder into the ball mill and mix for 5min.

[0083] (4) Forming: add appropriate amount of water to the mixed material and fully extrude it into a ball, put the ball into a sliver with an outlet hole of 10mm and extrude it into a bar, and use a 10mm ball pressing plate to press the extruded bar into a bar. Ball ...

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Abstract

The invention discloses a composition for preparing ultra-light ceramsite, which, in parts by weight, comprises 60-100 parts of shale, 0-40 parts of fly ash and 2-20 parts of jarosite slag; Based on the total weight of ash and jarosite slag, 0.2-2% silicon carbide is also added. The combination of components can realize the effective utilization of waste resources such as shale and jarosite slag, reduce the discharge of solid waste, and obtain a bulk density of 400kg / m2 3 Below, the ultra-light ceramsite with lower water absorption at the same time has low raw material cost, high added value of products, and realizes high-value utilization of waste. Also disclosed are ceramsite prepared by using the composition as a raw material and a preparation method of the ceramsite.

Description

technical field [0001] The invention relates to the technical field of inorganic non-metallic materials, in particular to a composition for preparing ultra-light ceramsite, a ceramsite prepared by using the composition as a raw material, and a preparation method of the ceramsite. Background technique [0002] Ceramsite is a kind of ceramic particles that can be formed by sintering. Most of the appearances are spherical and ellipsoid. It is widely used in water treatment, building materials and other fields. [0003] Ultra-light ceramsite generally refers to the bulk density of 300 ~ 500kg / m 3 ceramsite. This kind of ceramsite is generally used for thermal insulation concrete and its products. Ultra-light ceramsite is used as light aggregate to replace sand and gravel and added to concrete to obtain lightweight concrete, which is non-toxic, tasteless, compressive and wear-resistant, corrosion-resistant, and has good adsorption performance and strength. Purification of wat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/02C04B33/04C04B33/13
CPCC04B38/02C04B33/04C04B33/13C04B2235/5427C04B2235/602C04B2235/606C04B2235/656C04B2235/6567C04B2235/77C04B2235/402
Inventor 何江孙振华李少鹏李会泉刘明坤李占兵
Owner 长沙中瓷资源循环利用有限公司
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