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Composite light brick manufactured by utilizing municipal solid waste incinerated ash and preparation method thereof

A technology of municipal solid waste and incineration ash, which is applied in the field of building materials, can solve the problems of poor waterproof and impermeability, easy cracking, etc., and achieve the effects of good cracking resistance, high cleanliness and energy saving

Active Publication Date: 2013-04-17
珠海雄峰环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Similar problems also appear in the treatment of sedimentary sludge in sewage plants. The sludge deposited in sewage plants can also be used to manufacture building bricks, but it is also necessary to improve its poor waterproof and impervious properties and the defects of easy cracking

Method used

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  • Composite light brick manufactured by utilizing municipal solid waste incinerated ash and preparation method thereof
  • Composite light brick manufactured by utilizing municipal solid waste incinerated ash and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The composite lightweight brick manufactured by using municipal solid waste incineration ash in this embodiment has the following composition in terms of mass percentage:

[0036] 60% of bottom ash of municipal solid waste incineration;

[0037] Cement 8%;

[0038] Expanded perlite 7%;

[0039] Additive 5%;

[0040] Filling 20%;

[0041] The composition of the additive in mass percentage is as follows:

[0042] Triethanolamine 1%;

[0043] Sodium chloride 1%;

[0044] Sodium nitrite 1%;

[0045] Polyethylene fiber 2%.

[0046] The filler is composed of sand, lime and fly ash, and the municipal solid waste incineration ash is a ash material obtained after comprehensive treatment to remove heavy metals and harmful substances.

[0047] In this embodiment, the composite lightweight brick is set to a rectangular parallelepiped or cubic structure, and at least one surface is provided with a composite surface layer, a paint layer or a colored layer. The composite surface layer is generally mad...

Embodiment 2

[0051] The difference between this embodiment and the first embodiment lies in the ratio of each component. Specifically, the composite lightweight brick manufactured by using municipal solid waste incineration ash in this embodiment has the following composition by mass percentage:

[0052] Municipal solid waste incineration bottom ash or dried sewage plant sludge 70%;

[0053] Cement 8%;

[0054] Expanded perlite 7%;

[0055] Additive 3%;

[0056] Filling 12%;

[0057] The composition of the additive in mass percentage is as follows:

[0058] 0.8% triethanolamine;

[0059] Sodium chloride 0.2%;

[0060] Sodium nitrite 1%;

[0061] Polyethylene fiber 1%.

Embodiment 3

[0063] The difference between this embodiment and Embodiment 1 and Embodiment 2 lies in the ratio of each component. Specifically, the composite lightweight brick manufactured by using municipal solid waste incineration ash in this embodiment has the following composition by mass percentage :

[0064] 80% of municipal solid waste incineration bottom ash or dry sewage plant sludge;

[0065] Cement 5%;

[0066] Expanded perlite 5%;

[0067] Additive 4%;

[0068] Filling 6%;

[0069] The composition of the additive in mass percentage is as follows:

[0070] Triethanolamine 1%;

[0071] Sodium chloride 0.5%;

[0072] Sodium nitrite 1%;

[0073] 1.5% polyethylene fiber.

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Abstract

The invention provides a composite light brick manufactured by utilizing municipal solid waste incinerated ash and a preparation method thereof. The composite light brick consists of the following components in percentage by weight: 60-80 percent of municipal solid waste incinerated bottom ash, 5-10 percent of cement, 5-10 percent of expanded perlite, 2.1-5 percent of additive and 2-20 percent of filler, wherein the additive consists of the following components in percentage by weight: 0.5-1 percent of triethanolamine, 0.1-1 percent of sodium chloride, 0.5-1 percent of sodium nitrite and 1-2 percent of polyethylene fiber. According to the preparation method, the step of preparing the municipal solid waste incinerated bottom ash is finished in a water environment. The composite light brick has good crack-resistant and impervious effects, and the municipal solid waste incinerated bottom ash is prepared by utilizing a water cycle system, so that the prepared municipal solid waste incinerated bottom ash is high in cleanliness, and the transport cost of the raw materials in the preparation process is saved; and therefore, the energy is saved, and the production cost is reduced.

Description

Technical field [0001] The invention involves the field of building materials technology, especially a new type of recipe uses the composite light brick and preparation methods made of urban domestic waste incineration ash. Background technique [0002] With the increase of population and the improvement of living standards, the discharge and treatment of urban domestic garbage have become a new problem that needs to be solved urgently.At present, most cities in my country take are to burn urban domestic garbage.According to the different collection positions of urban domestic waste incineration, it is mainly divided into bottom ash and flying ash. The bottom ash generally includes residue discharge and ash drops between the furnaces.About 80%of the total amount of ash residue is mainly composed of slag, metal, ceramic fragments, glass and other non -flammable matter and unspeakable organic matter.Flying ash refers to the residues collected in the smoke purification system and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/10
CPCY02W30/91
Inventor 程峰
Owner 珠海雄峰环保科技有限公司
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