Shield construction waste slurry curing agent prepared from oil refining solid wastes and use method

A technology for waste mud and curing agent, applied in chemical instruments and methods, applications, fertilization devices, etc., can solve the problems of urgent need to improve the level of resource utilization, less popularization and application, etc. The effect of the construction period

Active Publication Date: 2019-03-12
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resource utilization technology of petroleum coke desulfurization ash has always been a hot spot and difficulty in research at home and abroad. Although there are many achievements, the actual promotion and application are few, and the level of resource utilization needs to be improved urgently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: A shield construction waste slurry curing agent prepared by using oil refining solid waste, which is formed by mixing component A and component B. The main component of component A includes petroleum coke desulfurization ash and cement. The petroleum coke desulfurization ash occupies 80% of the total weight, and the cement accounts for 18% of the total weight; the B component is auxiliary material, including water glass, polyacrylamide and polyferric sulfate, and the water glass accounts for 0% of the total weight, the sum of the polyacrylamide and polyferric sulfate accounts for 2% of the total. The polyacrylamide and polyferric sulfate are prepared at a weight ratio of 1:1.

Embodiment 2

[0026] Example 2: A shield construction waste slurry curing agent prepared by using oil refinery solid waste, which is made by mixing component A and component B. The main component of component A includes petroleum coke desulfurization ash and cement. The petroleum coke desulfurization ash occupies 65% of the total weight, and the cement accounts for 22% of the total weight. The B component is an auxiliary material, including water glass, polyacrylamide and polyferric sulfate, and the water glass accounts for 10% of the total weight, the sum of the polyacrylamide and polyferric sulfate accounts for 3% of the total. The polyacrylamide and polyferric sulfate are prepared at a weight ratio of 1:1.

[0027] A specific embodiment of the above-mentioned method of using the solidifying agent for shield construction waste mud of the present invention:

Embodiment 3

[0028] Example 3: The shield construction waste mud curing agent formed by uniformly mixing component A and component B is bagged and sealed; when used, the shield construction waste mud curing agent in the bag is sprinkled into the shield construction waste to be cured Stirring is performed in the mud, and the solidifying agent of the shield construction waste mud accounts for 10% of the weight of the shield construction waste mud. After adding the solidifying agent of the shield construction waste mud to the shield construction waste mud, continue to stir for 3 minutes to convert the shield construction waste mud into a solidified body. After standing for 2 hours, a dried and shaped slurry block is obtained.

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PUM

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Abstract

The invention provides a shield construction waste slurry curing agent prepared from oil refining solid wastes and a use method. The shield construction waste slurry curing agent is characterized by being prepared by mixing a component A and a component B, wherein the component A serves as a main material and contains petroleum coke desulfurized ash and cement, wherein the petroleum coke desulfurized ash accounts for 55%-80% of the total weight, and the cement accounts for 5%-26% of the total weight; and the component B serves as an auxiliary material and contains soluble glass, polyacrylamideand polymeric ferric sulfate, wherein the soluble glass accounts for 0-16% of the total weight, and the sum of the polyacrylamide and the polymeric ferric sulfate accounts for 1%-3% of the total weight. During use, the shield construction waste slurry curing agent in a bag is spread into the shield construction waste slurry needing to be cured and is stirred so as to convert the shield construction waste slurry into a cured body, and after standing for a period of time, a dried and formed slurry block is obtained. The curing agent is used for curing metro shield construction waste slurry to treat wastes with other wastes, thereby achieving the purpose of dual resource utilization of waste sludge and oil refining solid wastes.

Description

Technical field [0001] The invention belongs to the technical field of civil engineering and solid waste resource recycling and utilization, and relates to building materials and preparation methods thereof, in particular to a shield construction waste mud curing agent prepared by using oil refining solid waste and a use method. Background technique [0002] The subway project is a huge investment in urban infrastructure and an important lifeline project. With the construction of large-scale infrastructure in my country, especially underground projects, shield construction has been used on a large scale and has become a necessity for many large-scale tunnel projects. . The shield has the advantages of no special soil improvement, strong geological adaptability, and high stability of the excavation surface. However, during the shield construction process, it is usually necessary to use mud to stabilize the excavation surface of the mud water shield while carrying the soil slag out...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C09K17/48
CPCC04B28/04C04B2111/00017C09K17/48C09K2103/00C04B18/0427C04B22/00C04B24/2652C04B22/142
Inventor 高嵩曹剑黄庆强李秋义
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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