Method for making civil work engineering structure layer using domestic incinerator slag

A technology of domestic waste incineration and engineering structure, which is applied in the field of comprehensive utilization of domestic waste incineration slag, can solve the problems of unfavorable popularization and application, large investment, complicated process, etc., and achieve the effect of improving project quality, simple and reasonable process, and simple equipment

Active Publication Date: 2004-12-29
TONGJI UNIV
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Problems solved by technology

The main problems of the above-mentioned processing method for utilizing domestic waste incineration slag are t

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  • Method for making civil work engineering structure layer using domestic incinerator slag

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[0011] Please refer to the attached picture. The domestic waste incinerator slag of the present invention is first subjected to magnetic separation to separate ferrous metals, and the ferrous metals can be further recycled. The remaining incinerator slag is then sorted by a vibrating screen for particle size, and the screened material can be landfilled or further sorted and recovered. The under-screen material can be used as the covering material of municipal road subgrade and landfill. When applied, it should be spread and sprayed first, and then compacted to form a stable civil structure layer.

[0012] The magnetic separation equipment in the first step of the present invention can select a magnetic separation roller, which is installed at the upper roller position of the inclined belt conveyor (instead of the original roller). The undisturbed domestic waste incineration slag is evenly fed to the lower end of the belt conveyor. When the belt is carried to the upper exit, the no...

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Abstract

The present invention relates to the comprehensive utilization technology of incinerated domestic garbage slag. The incinerated domestic garbage slag is first magnetically separated to separate out the ferric metals and then sieved with sieve of 19 mm size squared meshes. The subsieve fraction is used as aggregate for road base or as the covering material in landfill; and the single laid layer has thickness of 0.2-0.3 m and is spread while watering before being densified. The present invention has reasonable and simple technological process and low cost, and can cover 75 % over incinerated domestic garbage slag to form high quality civil work and some ferric metals.

Description

technical field [0001] The invention relates to a process treatment method for making a civil engineering structure layer with domestic waste incineration slag, and belongs to the technical field of comprehensive utilization of domestic waste incineration slag. Background technique [0002] Domestic waste incineration slag is the secondary waste generated in the process of domestic waste treatment, specifically refers to the incineration residue discharged from the end of the grate of the domestic waste incinerator, and its production volume is about 10% to 20% of the amount of domestic waste incinerated. %, its composition is mainly composed of inorganic mineral components, and its characteristic is that the particle hardness is relatively large. At present, the main disposal method of domestic waste incineration slag is mixed with municipal solid waste or landfilled separately. However, landfill disposal requires land space. In the prior art, ...

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Application Information

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IPC IPC(8): E01C3/04
Inventor 何品晶邵立明宗兵年李国建章骅
Owner TONGJI UNIV
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