Construction waste recycling method

A technology of construction waste and raw materials, applied in applications, household appliances, other household appliances, etc., can solve the problems of secondary pollution, etc., and achieve the effect of smooth glaze, good economic benefits, good economic benefits and environmental protection effects

Inactive Publication Date: 2017-05-31
广州科恩科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most sewage treatment plants and construction units just send sludge to landfills or directly expose it to the wilderness, causing serious secondary pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Primary treatment of construction waste

[0028] Collect construction waste in a concentrated manner, and after cleaning and drying, break it into blocks; calcinate block gray bricks at a calcination temperature of 500°C; then crush the calcined block construction waste into construction waste powder for use;

[0029] Primary Treatment of Sludge

[0030] Add sludge dehydrating agent to condition the sludge, destroy the stable structure of the sludge colloid, expand the particle gap, so that it is easy to mix with other raw materials, and at the same time improve the dehydration performance; the sludge gel breaker is composed of calcium-containing substance powder and aluminum-containing It is composed of mixed substance powders, wherein the calcium-containing substance powder is calcium hypochlorite, and the aluminum-containing substance powder is aluminum sulfate. In the total composition, the mass ratio of calcium to aluminum is 9:1; The proportion of 5% of the sludg...

Embodiment 2

[0038] Primary treatment of construction waste

[0039] Collect construction waste in a concentrated manner, and after cleaning and drying, break it into blocks; calcinate block gray bricks at a calcination temperature of 700°C; then crush the calcined block construction waste into construction waste powder for use;

[0040] Primary Treatment of Sludge

[0041] Add sludge dehydrating agent to condition the sludge, destroy the stable structure of the sludge colloid, expand the particle gap, so that it is easy to mix with other raw materials, and at the same time improve the dehydration performance; the sludge gel breaker is composed of calcium-containing substance powder and aluminum-containing It is composed of mixed substance powders, wherein the calcium-containing substance powder is calcium hypochlorite, and the aluminum-containing substance powder is aluminum sulfate. In the total composition, the mass ratio of calcium to aluminum is 9:1; Dosing at a ratio of 8% of the sl...

Embodiment 3

[0049] Primary treatment of construction waste

[0050] Collect construction waste in a concentrated manner, and break it into blocks after cleaning and drying; calcinate the block gray bricks at a calcination temperature of 800°C; then crush the calcined block of construction waste into construction waste powder for use;

[0051] Primary Treatment of Sludge

[0052] Add sludge dehydrating agent to condition the sludge, destroy the stable structure of the sludge colloid, expand the particle gap, so that it is easy to mix with other raw materials, and at the same time improve the dehydration performance; the sludge gel breaker is composed of calcium-containing substance powder and aluminum-containing It is composed of mixed substance powders, wherein the calcium-containing substance powder is calcium hypochlorite, and the aluminum-containing substance powder is aluminum sulfate. In the total composition, the mass ratio of calcium to aluminum is 9:1; The proportion of 10% of the ...

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PUM

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Abstract

The invention discloses a construction waste recycling method. According to the method, ceramic is prepared from construction wastes and municipal sludge adopted as main raw materials, so that the construction wastes are recycled, and good economic benefits and environment-friendly effects are achieved.

Description

[0001] Technical field [0002] The invention relates to the field of garbage recycling, in particular to a method for recycling construction waste. Background technique [0003] At present, during the construction, demolition, and repair of buildings, pipe networks, and other facilities, a large amount of construction waste such as muck and residues will be generated, most of which have not been treated in any way, or are piled in the open air or landfilled, which increases It not only reduces the construction funds, but also causes serious environmental pollution, and also limits the sustainable development of urban economy and environment. [0004] The 21st century is the century of environmental protection. With the implementation of my country's sustainable development strategy, higher requirements are put forward for environmental protection. The comprehensive recycling of construction waste is also the main development direction of industrial environmental protection. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B33/13C03C8/20C04B41/86
CPCC03C8/20C04B33/131C04B33/132C04B33/1321C04B41/009C04B41/5022C04B41/86C04B2235/3272C04B2235/3427Y02P40/60
Inventor 黄诗平
Owner 广州科恩科技有限公司
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