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A kind of resource treatment method of construction waste

A technology of construction waste and treatment method, applied in ceramic products, other household appliances, household appliances, etc., can solve problems such as environmental pollution, impact on application, easy to produce cracks, etc., achieve wide application prospects, reduce environmental impact, and cost. added effect

Active Publication Date: 2019-11-29
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the traditional inorganic materials, air-entrained concrete is the most widely used, but it is prone to cracks, which affects the actual application
Although organic thermal insulation materials have good performance, when they are removed, the substances added in them will often cause pollution to the environment

Method used

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  • A kind of resource treatment method of construction waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Select a certain quality of construction waste for crushing;

[0033] (2) Construction waste after being crushed in step (1) is passed through an 80-mesh sieve, and the undersize is passed through a 120-mesh sieve;

[0034] (3) Put the powder under the 120 mesh sieve in step (2) into the grinding equipment for further refinement;

[0035] (4) get 10 parts of NaOH by weight in the water glass solution (water glass modulus is 3.2) of 50 parts of concentration 35%, and seal container mouth with plastic wrap, statically cool to room temperature;

[0036] (5) Get 10 parts of 120 mesh sieves in step (2), 65 parts of powder after refinement in step (3), 60 parts of mixed solution in (4), 3 parts of hydrogen peroxide solution with a concentration of 5% , 8 parts of municipal sludge with a water content of 72%, 0.5 part of sodium lauryl sulfate, placed in a mixer and mixed;

[0037] (6) Put the material mixed in step (5) into a mold and seal it for storage for 25 minutes, ...

Embodiment 2

[0040] (1) Select a certain quality of construction waste for crushing;

[0041] (2) Construction waste after being crushed in step (1) is passed through an 80-mesh sieve, and the undersize is passed through a 120-mesh sieve;

[0042] (3) Put the powder under the 120 mesh sieve in step (2) into the grinding equipment for further refinement;

[0043] (4) get 8 parts of NaOH by weight in the water glass solution (water glass modulus is 3.4) of 50 parts of concentration 33%, and seal container mouth with plastic wrap, static cooling to room temperature;

[0044] (5) Get 5 parts of 120 mesh sieves in step (2), 75 parts of powder after refinement in step (3), 56 parts of mixed solution in (4), 4 parts of hydrogen peroxide solution of concentration 2% , 5 parts of municipal sludge with a water content of 80%, 0.75 part of sodium lauryl sulfate, placed in a mixer and mixed;

[0045] (6) Put the mixed material obtained in step (5) into a mold and seal it for 20 minutes, put it into a ...

Embodiment 3

[0048] (1) Select a certain quality of construction waste for crushing;

[0049] (2) Construction waste after being crushed in step (1) is passed through an 80-mesh sieve, and the undersize is passed through a 120-mesh sieve;

[0050] (3) Put the powder under the 120 mesh sieve in step (2) into the grinding equipment for further refinement;

[0051] (4) get 8 parts of NaOH by weight in the water glass solution (water glass modulus is 3.2) of 50 parts of concentration 34%, and seal container mouth with plastic wrap, statically cool to room temperature;

[0052] (5) Get 0 part of 120 mesh sieves in step (2), 80 parts of powder after refinement in step (3), 60 parts of mixed solution in (4), 4 parts (hydrogen peroxide of concentration 5%) Solution, 15 parts of municipal sludge with a water content of 70%, 1.25 parts of sodium lauryl sulfate, placed in a mixer and mixed;

[0053] (6) Put the material mixed in step (5) into a mold and seal it for storage for 30 minutes, put it in...

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Abstract

The invention relates to a recycling treatment method of building waste, which comprises the following steps of: (1) breaking and sieving the building waste, taking an oversize product for future use,putting an undersize product in grinding equipment for refining to form refined powder for future use, (2) weighing and dissolving 7-10 parts of NaOH in 50 parts of soluble glass solution, performingsealing, leaving to stand and cooling to a room temperature to form a mixed solution, and (3) mixing, stirring and putting 0-10 parts by weight of oversize product, 60-80 parts by weight of refined powder, 55-60 parts by weight of mixed solution in step (2), 2-4 parts by weight of hydrogen peroxide solution, 5-15 parts by weight of municipal sludge with a water content of 70-80%, and 0.25-1.25 parts by weight of an assistant in a mold for sealed storage, performing heating, cooling and demolding to form a building waste based heat insulating material. Compared with the prior art, the method is simple in technology and low in cost and energy consumption, and solves the problems of large floor area and difficult consumption of the building waste, and at the same time, a recycled product hasa higher additional value and wider application prospects.

Description

technical field [0001] The invention belongs to the technical field of construction waste treatment, and relates to a resource treatment method for construction waste. Background technique [0002] At present, our country is in a period of great economic development. Every year, a large number of chemical, metallurgical, light industry, and processing enterprises face demolition or reconstruction, resulting in a large amount of polluted decoration waste or construction waste. The annual discharge of decoration waste has now exceeded 500 million tons, of which Beijing, Shanghai and other big cities have an annual discharge of more than 1 million tons, while the resource utilization rate is less than 5%. Among them, the decoration waste produced by industrial enterprises such as chemical industry, metallurgy, and pesticides contains hazardous waste, which has complex characteristics such as high pollutant content, uneven pollution distribution, and hidden environmental risks. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/26C04B38/02
CPCC04B28/26C04B2201/20C04B2201/32C04B2201/50C04B18/16C04B22/062C04B22/068C04B18/0418C04B24/16C04B38/02C04B38/0074C04B38/0067
Inventor 赵由才郑毅李天武舒娅柴晓利牛冬杰
Owner TONGJI UNIV