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Indoor sludge solidification method based on skeleton structure

A skeleton structure and solidification method technology, applied in the direction of solid waste management, sustainable waste treatment, climate sustainability, etc., can solve the problems of narrow application area, non-proportional input and output, etc., and achieve overall strength improvement, low price, The effect of reducing volume

Pending Publication Date: 2022-06-07
浙江广川工程咨询有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Coupled with the limitations of engineering construction technology, and facing the test of long-term environmental factors (such as temperature, moisture, etc.), most of them are used as backfill materials for roadbeds and sites. The application area is very narrow, and the input and output are not directly proportional.

Method used

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  • Indoor sludge solidification method based on skeleton structure
  • Indoor sludge solidification method based on skeleton structure
  • Indoor sludge solidification method based on skeleton structure

Examples

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Effect test

Embodiment

[0037] The present invention provides an indoor sludge curing method based on a skeleton structure, comprising the following steps:

[0038] (1) Preparation of soil samples: weigh the silt samples, use natural drying or drying ovens below 45 ° C to air dry the silt soil samples, so that the moisture content is below 40%.

[0039] (2) Preparation of aggregates: the construction waste and cinder are mixed according to a certain proportion, graded crushing with intelligent screening machine, the first crushing to a particle size of less than 20mm, calcined in the muffle furnace, and then through the grading crusher, and the use of automatic screening system for intelligent screening and transmission, to obtain different particle size aggregates, and select aggregates with a particle size of 0.075-5mm.

[0040] Further, the cinder moisture content is not more than 2%.

[0041]Further, the mixing ratio of cinder to construction waste is 1:20.

[0042] Further, the calcination temperatu...

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Abstract

The invention relates to the technical field of environmental rock and soil, in particular to an indoor sludge curing method based on a skeleton structure, which comprises the following steps: crushing and sorting construction wastes, adding coal cinder, calcining, crushing again, intelligently screening, adding 5-20% of the crushed construction wastes into sludge with the water content of less than 60%, adding 5-10% of a special sludge curing agent at the same time, and uniformly mixing to obtain the indoor sludge curing method based on the skeleton structure. The framework structure sludge solidified soil with high strength and strong water-resistant stability is prepared from the raw materials, the solid wastes such as the construction wastes and the sludge are effectively utilized, the waste recycling is realized, the cost for transporting soil out of a project and purchasing the soil can be reduced, and the environment protection is also facilitated.

Description

Technical field [0001] The present invention relates to the field of environmental geotechnical technology, specifically to a method of solidifying indoor silt based on a skeleton structure. Background [0002] At present, the treatment of silt mainly includes marine dumping, land landfill, agricultural fertilizer, landscaping and building materials utilization. Among them, agricultural fertilizer field is a traditional way of utilization, in the 1960s and 1970s more prevalent, with the improvement of fertilizer utilization rate, silt fertilizer is gradually forgotten by everyone, and if the sludge is directly applied to the surface as a fertilizer source and is not covered, it has a certain taste itself will also affect the surrounding environment; Ocean dumping due to pollution of the ocean has been prohibited; Landfilling should not be promoted due to the encroachment of a large amount of land and improper handling at the same time, there may also be disadvantages such as po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00017C04B2111/00775C04B2201/50C04B18/0418C04B18/16C04B18/10C04B18/08C04B22/064C04B22/062C04B12/04C04B22/143Y02W30/91
Inventor 史燕南
Owner 浙江广川工程咨询有限公司
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