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Composition for preparing ultralight 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 jarosite slag pollution, poor comprehensive utilization rate, environmental impact, etc., to reduce solid waste discharge, low water absorption, The effect of effective preparation

Active Publication Date: 2020-12-04
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 ultralight ceramsite, ceramsite and preparation method thereof
  • Composition for preparing ultralight ceramsite, ceramsite and preparation method thereof
  • Composition for preparing ultralight ceramsite, ceramsite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0041] There is no particular limitation on the preparation method of the ceramsite, which can be prepared by methods known in the art, and the discontinuous firing process can be used in the process, or the rotary kiln can be used for continuous firing.

[0042] An example is prepared as follows:

[0043] Make each component into a powder, mix evenly, add an appropriate amount of water to the mixed powder to make a ball, and make a ball blank;

[0044] The obtained spheroids are dried, preheated, fired at high temperature, and ceramsite is obtained after cooling.

[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] The method of making each component into a powder is exemplified as follows: after crushing each component, drying, ball milling, and sieving. The particle size of the sieved powder is not coarser than 10...

Embodiment 1

[0067] The composition for preparing ultra-light ceramsite comprises shale, alum 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: Dry the crushed shale, alum slag and aluminum-containing silicon carbide waste in an oven at 105°C to constant weight, put the dried materials into a ball mill and grind them to fineness, and pass through 100 mesh Sieve to get powder.

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

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

[0072] (4) Forming: Add appropriate amount of water to the mixed material and fully squeeze it into a ball, put the ball into a 10mm strip forming device to extrude into strips, and use a 10mm pressure ball plate to press the extruded strips into strips Bla...

Embodiment 2

[0078] The composition for preparing ultra-light ceramsite comprises shale, alum slag and aluminum-containing silicon carbide waste in a mass ratio of 90:10:1.

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

[0080] (1) Drying and grinding: Dry the crushed shale, alum slag and aluminum-containing silicon carbide waste in an oven at 105°C to constant weight, put the dried materials into a ball mill and grind them to fineness, and pass through 100 mesh Sieve to get powder.

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

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

[0083] (4) Forming: Add appropriate amount of water to the mixed material and fully squeeze it into a ball, put the ball into a 10mm strip forming device to extrude into strips, and use a 10mm pressure ball plate to press the extruded strips into strips Blank.

...

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Abstract

The invention discloses a composition for preparing ultralight ceramsite, which comprises the following components in parts by weight: 60-100 parts of shale, 0-40 parts of fly ash and 2-20 parts of jarosite slag. 0.22% of silicon carbide is also added on the basis of the total weight of the shale, the coal ash and the jarosite slag. By matching the components, effective utilization of waste resources such as shale and jarosite slag is realized, solid waste discharge is reduced, ultralight ceramsite with stacking density below 400kg / m < 3 > and low water absorption can be obtained, the raw material cost is low, the added value of the product is high, and high-valued utilization of wastes is realized. The invention also discloses ceramsite prepared by taking the composition as a raw materialand 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, ceramsite prepared from the composition, and a preparation method of the ceramsite. Background technique [0002] Ceramsite is a kind of ceramic particle that can be formed by sintering. Most of the appearance is spherical and ellipsoidal. It is widely used in water treatment, building materials and other fields. [0003] Ultra-light ceramsite generally refers to a bulk density of 300-500kg / m 3 of ceramsite. This kind of ceramsite is generally used for thermal insulation concrete and its products. Ultra-light ceramsite is used as light aggregate instead of sand and gravel to add concrete to make lightweight concrete, which is non-toxic, odorless, compressive, wear-resistant, corrosion-resistant, and has good adsorption performance and strength. It is suitable for all kinds of Water purification treatm...

Claims

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Application Information

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Patent Type & Authority Applications(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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