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Preparation method for producing baking-free bricks by cooperatively utilizing household garbage incineration slag and waste plastic particles

A domestic waste incineration and brick-free technology, which is applied in solid waste management, sustainable waste treatment, climate sustainability, etc.

Pending Publication Date: 2020-09-29
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no research on the process of adding waste plastics to unburned bricks

Method used

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  • Preparation method for producing baking-free bricks by cooperatively utilizing household garbage incineration slag and waste plastic particles
  • Preparation method for producing baking-free bricks by cooperatively utilizing household garbage incineration slag and waste plastic particles
  • Preparation method for producing baking-free bricks by cooperatively utilizing household garbage incineration slag and waste plastic particles

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preparation example Construction

[0020] The invention provides a preparation method for synergistically producing non-burning bricks by utilizing domestic waste incineration slag and waste plastic particles, comprising the following steps:

[0021] 1) Domestic waste incinerator slag is used as recycled aggregate after pretreatment;

[0022] 2) Waste plastics are used as recycled aggregates after hot-melt granulation;

[0023] 3) mixing the domestic waste incineration slag regenerated aggregate and waste plastic granule regenerated aggregate generated in step 1) and step 2) into river sand, cement, lime, and gypsum as raw materials, and adding an alkali activator to obtain a mixture;

[0024] 4) Stirring and mixing the mixture prepared in step 3) with water to form an embryo body and curing to obtain unburned bricks; the mass ratio of the mixture to water is (80-85): (15-20); The moisture content of the unburned brick is less than 5.7%.

[0025] The domestic garbage incinerator slag of the present invention ...

Embodiment 1

[0043] A preparation method for synergistically producing non-burning bricks by using domestic waste incineration slag and waste plastic particles, comprising the following steps:

[0044] In the first step, the pretreatment process of domestic waste incineration slag includes magnetic separation and sorting, crushing and screening, washing, and natural drying, and the particle size is less than 7.5mm;

[0045] The second step is hot-melt granulation of waste plastics, with a particle size of 2.5-3.5mm;

[0046] In the third step, the domestic waste incineration slag regenerated aggregate and waste plastic granule regenerated aggregate generated in the first and second steps are mixed with river sand, cement, lime, and gypsum as raw materials, and a certain activator is added. for 10:30:30:9:12:8:1;

[0047] The 4th step, the mixture that the 3rd step is made is mixed with water, and the mass ratio of described mixture and water is 80:20, is poured into mould, makes embryo bo...

Embodiment 2

[0050] A preparation method for synergistically producing non-burning bricks by using domestic waste incineration slag and waste plastic particles, comprising the following steps:

[0051] The first step, the pretreatment process of domestic waste incineration slag includes magnetic separation and separation, crushing and screening, deionized water washing, natural drying, and the particle size is less than 7.5mm;

[0052] The second step is hot-melt granulation of waste plastics, with a particle size of 2.5-3.5mm;

[0053] In the third step, the domestic waste incineration slag regenerated aggregate and waste plastic granule regenerated aggregate generated in the first and second steps are mixed with river sand, cement, lime, and gypsum as raw materials, and a certain activator is added. for 20:20:30:9:11:9:1;

[0054] The 4th step, the mixing material that the 3rd step is made is mixed with water, and the mass ratio of described mixing material and water is 85:15, is poured...

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Abstract

The invention discloses a preparation method for producing baking-free bricks by cooperatively utilizing household garbage incinerator slag and waste plastic particles. The preparation method comprises the following steps that pretreated household garbage incinerator slag and waste plastic particles serve as a part of aggregate in a traditional process, then the aggregate is mixed with river sand,cement, lime, gypsum and an excitant, water is added, uniform stirring is conducted to obtain a mixture, and a certain curing mode is adopted to prepare a baking-free brick product meeting standards.According to the method, a new thought is provided for comprehensive utilization of the household garbage incineration slag through a low-energy-consumption and low-cost building material means; meanwhile, a new solution is provided for the overcoming consumption difficulty of waste plastics; the performance of the baking-free bricks prepared from the slag is improved to a certain extent, and remarkable economic benefits, social benefits and environmental benefits are achieved.

Description

technical field [0001] The invention relates to the field of solid waste resource utilization and building material utilization, in particular to a preparation method for synergistically producing non-burning bricks by utilizing domestic waste incineration slag and waste plastic particles. Background technique [0002] With the acceleration of my country's urbanization process and economic development, the amount of domestic waste is also increasing. In 2018, the volume of urban domestic waste removal in my country has reached 228.018 million tons. According to relevant reports, the cumulative stockpiles of domestic waste in China have exceeded 6.5 billion tons, and the growth rate has reached an astonishing rate of 10%. How to absorb such a large amount of domestic waste has become a difficult problem. In the early days, most of our country used landfill technology to deal with domestic waste, but due to the shortcomings of landfill, such as occupying space, polluting soil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B18/10C04B18/20
CPCC04B28/14C04B2201/20C04B2201/32C04B2201/50C04B2/02C04B7/00C04B18/10C04B18/20C04B14/068C04B22/062C04B22/00C04B22/0093Y02W30/91
Inventor 蒋建国林莉颜未蔚宋迎春
Owner TSINGHUA UNIV
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