A kind of inorganic polymer foam material prepared by utilizing sludge and its preparation method

A technology of inorganic polymers and foaming materials, applied in applications, ceramic products, household appliances, etc., can solve the problems of waste of resources, increase the cost of manpower and material resources, reduce the consumption of manpower and material resources, achieve great economic and environmental protection benefits, water absorption rate high effect

Active Publication Date: 2020-12-25
SICHUAN COLLEGE OF ARCHITECTURAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is: for the technical scheme that does not yet utilize the sludge produced by urban domestic sewage treatment to prepare inorganic polymer building materials, the conventional harmless treatment of the sludge produced by sewage treatment will increase the manpower and material cost of treatment , causing technical problems of waste of resources, providing an inorganic polymer foam material prepared from sludge and a preparation method thereof

Method used

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  • A kind of inorganic polymer foam material prepared by utilizing sludge and its preparation method
  • A kind of inorganic polymer foam material prepared by utilizing sludge and its preparation method
  • A kind of inorganic polymer foam material prepared by utilizing sludge and its preparation method

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Embodiment 1

[0041] Such as Figure 1-3 As shown, a kind of inorganic polymer foaming material prepared by using sludge includes inorganic polymer slurry prepared by mixing an aggregate composition and an alkali activator, and the aggregate composition includes sludge powder and oxygen-containing The powder material of aluminum and / or silicon oxide, the sludge powder is obtained by drying the sludge. In this embodiment, the powder material is preferably prepared by mixing phosphate rock slag powder and fly ash. Active powder material, the particle size of the active powder material is less than 3mm, and in laboratory conditions, preferably the alkali activator is sodium hydroxide.

[0042] An inorganic polymer foam material prepared from sludge in this embodiment uses sludge produced by sewage treatment as one of the raw materials, which provides a better way for the sludge produced by sewage treatment and reduces the need for sludge treatment. The consumption of manpower and material res...

Embodiment 2

[0045] Such as Figure 1-3 As shown, a kind of inorganic polymer foaming material prepared from sludge in this embodiment has the same raw material components as in Example 1, the difference is that the powder material also includes fiber powder and / or standard sand. The inert powder material, the particle size of the inert powder material is less than 3mm, preferably the inert powder material in this embodiment is prepared by mixing standard sand and fiber powder made from waste paper, and the fiber powder It is made from waste paper through alkalization treatment, drying treatment, and crushing treatment in sequence. The fiber powder has several powder flocculations, and the fiber powder per unit volume includes 5%-30% of the volume percentage of powder flocculation. Each The diameter of the powder flocculation is less than 5mm.

[0046] An inorganic polymer foaming material prepared from sludge in this embodiment uses waste paper to prepare fiber powder, which provides a b...

Embodiment 3

[0049] Such as Figure 1-3 As shown, a kind of inorganic polymer foaming material prepared by using sludge in this embodiment, the raw material components are the same as in Example 2, the difference is that the weight ratio of each raw material in the inorganic polymer slurry is: sludge Powder: phosphate rock slag powder: fly ash is 1:1:1; the weight ratio of the sludge powder to standard sand is 1: (3-10); the weight ratio of the sludge powder to fiber powder is 1 : (2-3); the weight ratio of the sludge powder to the alkali activator is 1: (0.4-1); also includes the water used to reconcile the inorganic polymer slurry, the sludge powder and water The weight ratio is 1:(4.5-5).

[0050] In the raw material formula of an inorganic polymer foaming material prepared from sludge in this embodiment, the amount of each raw material component can be adjusted according to the actual situation to obtain inorganic polymer slurries with different gelling effects, and The sludge weight...

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Abstract

The invention relates to the field of preparation of inorganic polymer building materials, in particular to an inorganic polymer foaming material prepared from sludge and a preparing method of the inorganic polymer foaming material. The inorganic polymer foaming material comprises inorganic polymer slurry prepared by mixing an aggregate composition and an alkali activator. The aggregate composition comprises sludge powder and a powder material containing aluminum oxide and / or silicon oxide. The sludge powder is prepared by drying the sludge. The alkali activator comprises sodium hydroxide and / or sodium silicate. The good utilization approach is provided for sludge and industrial solid waste produced during urban sewage treatment, the labor and material consumption in the processing processis reduced, the environment pollution is reduced, and great economic environment-friendly benefits are achieved; meanwhile, through multiple times of stirring and standing treatment and fermenting oforganic mass in the sludge, bubbles in the slurry are increased to the maximum extent, and the prepared foaming material is high in porosity, high in water absorption rate and good in thermal insulation and heat storage effect.

Description

technical field [0001] The invention relates to the field of preparation of inorganic polymer building materials, in particular to an inorganic polymer foam material prepared from sludge and a preparation method thereof. Background technique [0002] With the increasing population and the increasing urbanization of the global society, the output of urban domestic sewage is increasing, and the sludge as a by-product of urban sewage treatment is also increasing. Sewage sludge is between liquid and solid The thick matter can be transported by pump, but it is difficult to separate the solid and liquid by sedimentation. At present, the sludge generated by urban sewage treatment is mainly treated in anaerobic, aerobic, composting or sanitary landfill methods for harmless treatment . [0003] However, the sludge produced by urban domestic sewage treatment contains a large amount of organic debris, inorganic particles, bacterial cells and colloids, and the water content can be as h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B38/02C04B18/04C04B111/40
CPCC04B28/006C04B38/025C04B2201/20C04B2201/50C04B22/062C04B18/0427C04B18/08C04B18/145C04B18/241C04B14/06Y02W30/91
Inventor 颜子博胡敏彭丽郭娜张钰明
Owner SICHUAN COLLEGE OF ARCHITECTURAL TECH
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