Method for carrying out collaborative incineration treatment on semi-dry sludge and garbage

A semi-dry sludge and garbage incineration technology, which is applied in dehydration/drying/concentrated sludge treatment, combustion methods, incinerators, etc., can solve the problem of increased sludge landfill costs, increased farmland heavy metal concentration, and sludge landfill space Reduction and other issues, to achieve the effect of reducing volume, reducing equipment investment and operating costs, and achieving harmlessness

Pending Publication Date: 2019-05-17
SHANGHAI SUS ENVIRONMENT
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Problems solved by technology

However, the heavy metals in the sludge will lead to an increase in the concentration of heavy metals in the farmland, and can enter the human body through the food chain
Although sludge landfill is still the main disposal method at present, the natural characteristics of sludge bring treatment and stabilization problems
And the sludge landfill space is continuously reduced, and the cost of sludge landfill is increased

Method used

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  • Method for carrying out collaborative incineration treatment on semi-dry sludge and garbage

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing, the example of the present invention is described in detail:

[0032] Such as figure 1 As shown, the reference signs in the drawings of the specification include: waste incineration power generation system 1, sludge drying system 2, sludge receiving port 3, sludge receiving and storage system 4, wet sludge conveying system 5, sludge drying Machine 6, semi-dry sludge transportation 7, semi-dry sludge storage pit 8, sludge feeding system 9, incinerator feed hopper 10, steam\electricity\circulating cooling water and other public systems 11, sludge drying wastewater\ Exhaust gas collection system 12.

[0033] A specific case implementation process of a method for co-incineration of sludge and domestic waste:

[0034] The wet sludge is transported by the sludge truck from the sewage plant into the waste incineration power plant area, enters the garbage unloading hall, and discharges the wet sludge into the sludge receiving an...

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Abstract

The invention provides a method for carrying out collaborative incineration treatment on semi-dry sludge and garbage. According to the method, indirect drying is carried out on the wet sludge by utilizing the steam generated by a waste incineration system, waste gas and waste water generated in the sludge drying process are sent to the waste incineration system for collaborative treatment, the generated semi-dry sludge enters the semi-dry sludge storage pit through sealing conveying, the semi-dry sludge is conveyed into the garbage incineration hopper through a semi-dry sludge feeding system to carry out cooperative treatment with garbage; a sludge drying machine adopts an ultra-circular-disc steam indirect drying process, the semi-dry sludge conveying and storing system adopts a full-closed type mechanical conveying, wherein the semi-dry sludge feeding system adopts a two-section type sludge grab bucket to realize sludge feeding.

Description

technical field [0001] The invention belongs to the field of sludge treatment, and in particular relates to a method for cooperatively treating dried sewage sludge by utilizing a garbage incineration system. Background technique [0002] In recent years, under the influence of national energy conservation and emission reduction and active fiscal policies, urban sewage treatment has developed rapidly. However, a large amount of sludge generated in the process of urban sewage treatment has not been effectively treated and disposed of. The total annual output of municipal sludge in my country is increasing year by year, and it has exceeded 40 million tons at present. It is estimated that by 2020, the annual output of municipal sludge in my country will reach 60-90 million tons. However, due to the low sludge treatment rate in my country, the national sludge treatment rate in 2016 only reached 33%. These sludges are very easy to cause secondary pollution to groundwater, soil, e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G7/00F23G5/44F23G5/46C02F11/12
Inventor 毛梦梅冯淋淋劳云枫陆钧皓刘露孙中涛刘焕联白力戴勇许力
Owner SHANGHAI SUS ENVIRONMENT
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