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Comprehensive utilization process for making bricks from municipal sludge and construction waste

A technology for construction waste and sludge, which is applied in sludge treatment, water/sludge/sewage treatment, fixed/solidified sludge treatment, etc. , the effect of reducing secondary pollution

Inactive Publication Date: 2019-11-01
洛阳中新能再生能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a comprehensive utilization process for making bricks from urban sludge and construction waste. By recombining the treatment and disposal of urban sludge and construction waste, the Toxic and harmful components are solidified and burned to completely reduce the possibility of secondary pollution of pollutants; two new methods of disposal of solid waste that can only be landfilled are opened up, and the reduced amount of landfill can greatly reduce the impact on land resources. demand, turn the original useless waste into treasure, and realize the resource utilization of waste

Method used

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  • Comprehensive utilization process for making bricks from municipal sludge and construction waste

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Comparison scheme
Effect test

Embodiment 1

[0019] The process steps are as follows: urban sludge and construction waste are processed separately, then raw materials are crushed and screened → mixed → aged → billet making → stacking → kiln sintering → cooling and storage; the specific implementation steps are as follows:

[0020] Crushing and screening of raw materials: crushing and screening the sludge regeneration fuel and ultra-fine powder formed after urban sludge and construction waste are processed, the ultra-fine powder constitutes sintering material, and the sludge regeneration fuel is used as fuel;

[0021] Mixing: Mix the crushed and screened superfine powder and sludge regeneration fuel, and transport the mixed mixture to the aging warehouse;

[0022] Aging: The mixture is aged in the aging warehouse, so that various raw materials can be fully infiltrated and contacted, and the aging time is 36-40h;

[0023] Billet making: the aged mixture is extruded into specific adobe strips under the action of an extruder...

Embodiment 2

[0028] The superfine powder of the construction waste is 70%-80%, the sludge regenerated fuel is 21%-30%, and the sum of the composition weights of the above components is 100%.

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Abstract

The invention relates to a comprehensive utilization process for making bricks from municipal sludge and construction waste. The process flow comprises the following steps: separately processing municipal sludge and construction waste, crushing and screening the raw materials, carrying out mixing, carrying out ageing, making blanks, carrying out stacking, carrying out sintering in a kiln, and carrying out cooling and warehousing. Through recombination and redesigning of treatment and disposal of the municipal sludge and the construction waste, toxic and harmful components in the sludge are subjected to solidification and combustion treatment, so that possibility of secondary pollution of pollutants is thoroughly reduced. The invention develops a new way of treating and disposing two solidwastes which are treated only by landfill before, so that the landfill amount is reduced, demands on land resources can be greatly reduced, original useless wastes are changed into valuables, and resource utilization of the wastes is realized.

Description

technical field [0001] The invention relates to the field of urban waste treatment and disposal, in particular to a comprehensive utilization process for making bricks from urban sludge and construction waste. Background technique [0002] As the country pays more and more attention to environmental protection, the country has successively issued a series of related environmental protection policies. Urban sludge and construction waste are persistent diseases that have long plagued urban environmental governance. At present, the main treatment method of urban sludge in my country is the landfill method. This method requires relatively little investment, but it needs to occupy land. At the same time, there are many harmful substances in the sludge that have not been eliminated for the time being. When it is directly buried, it needs to invest in waterproof and anti-seepage construction. Otherwise, it will cause secondary pollution to the environment and groundwater sources, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/622C04B35/626C04B38/06C02F11/00C10L5/46
CPCC04B35/62204C04B35/622C04B35/6269C04B38/0665C02F11/008C02F11/00C10L5/46C04B2235/6021C02F2303/02Y02E50/10Y02E50/30
Inventor 焦永乐董中伟贾晓松焦凡祯
Owner 洛阳中新能再生能源有限公司
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