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Phase-change ceramsite based on waste incineration fly ash as well as preparation method and application of phase-change ceramsite

A waste incineration fly ash and ceramsite technology, applied in applications, ceramic products, and other household appliances, can solve the problems of difficulty in large-scale promotion and application and high disposal costs

Pending Publication Date: 2021-09-10
NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disposal costs of the above fly ash disposal methods are generally high, and it is difficult to popularize and apply them on a large scale. At present, most of the incineration fly ash is still landfilled.

Method used

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  • Phase-change ceramsite based on waste incineration fly ash as well as preparation method and application of phase-change ceramsite
  • Phase-change ceramsite based on waste incineration fly ash as well as preparation method and application of phase-change ceramsite
  • Phase-change ceramsite based on waste incineration fly ash as well as preparation method and application of phase-change ceramsite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Step 1: The raw materials are pulverized separately with a pulverizer or a ball mill, and passed through a 100-mesh sieve for later use;

[0063] Step 2: Mix waste incineration fly ash, clay and dried municipal sludge according to a certain mass ratio to form a mixture. The mass ratio of each component is respectively: 30 parts of waste incineration fly ash, 30 parts of clay, and 40 parts of dried sludge.

[0064] Step 3: Take an appropriate amount of water and add it to the mixture and stir evenly to make it into a ball; then granulate so that the diameter of the ceramsite is about 10-20mm; Put the container in full bloom, heat and dry it in an oven at 105°C for 4 hours, and then sinter in a muffle furnace at a temperature of 1150°C for 20-30 minutes. After sintering, cool naturally to obtain fly ash ceramsite.

[0065] (2) Preparation of phase change energy storage ceramsite:

[0066] Using paraffin as phase change material and fly ash ceramsite as carrier, phase ch...

Embodiment 2

[0069] The difference from Example 1 is 40 parts of waste incineration fly ash, 30 parts of clay, and 30 parts of dried sludge.

[0070] The phase transition temperature is 40-60°C, and the phase transition enthalpy is above 80J / g.

Embodiment 3

[0072] The difference from Example 1 is 20 parts of waste incineration fly ash, 30 parts of clay, and 50 parts of dried sludge.

[0073] The phase transition temperature is 40-60°C, and the phase transition enthalpy is above 80J / g.

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Abstract

The invention relates to phase-change ceramsite based on waste incineration fly ash as well as a preparation method and application of the phase-change ceramsite. The phase-change ceramsite comprises fly ash ceramsite and a phase-change material; the fly ash ceramsite comprises the following raw materials in parts by weight: 15-45 parts of waste incineration fly ash, 25-45 parts of clay and 25-55 parts of municipal sludge, and the fly ash ceramsite has a capillary pore structure; and the phase-change material is loaded in the capillary pore structure of the fly ash ceramsite. The problem of preparing the phase-change ceramsite from waste incineration fly ash is solved, resources are effectively utilized, the waste incineration fly ash can be safely treated, and high-value utilization of the fly ash ceramsite is achieved.

Description

technical field [0001] The invention belongs to the technical field of inorganic non-metallic materials, and in particular relates to a phase-change ceramsite based on waste incineration fly ash and its preparation method and application. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] With the rapid development of urbanization in my country and the improvement of people's living standards, the output of urban domestic waste has also increased rapidly. The generation of municipal solid waste is increasing day by day, increasing rapidly with an annual growth rate of 8% to 10%. Garbage incineration can reduce the volume of garbage by 90%, and can convert the chemical energ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/135C04B33/132C04B38/02C04B41/83C04B41/82
CPCC04B33/1352C04B33/1321C04B38/02C04B41/009C04B41/83C04B41/82C04B41/46C04B41/478C04B2235/96C04B2235/77C04B38/0074C04B41/4523Y02P40/60
Inventor 张伟屹朱英王启春李静
Owner NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI
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