A suspended combustion carbonization cracking system for domestic waste and its treatment process

Abstract

The invention discloses a domestic refuse suspension-type combustion carbonization pyrolysis system and a treatment technique thereof. The system is sequentially composed of a refuse conveying platform, a suspension-type pyrolysis combustion integrated furnace, a soda lye washer, a honeycomb plasma flue gas treatment device, a power pulse electrochemical photoelectric ion waste gas treatment device, a peculiar smell advanced treatment device containing high-energy oxygen nano water, a deduster and an induced fan. The treatment technique comprises the following steps: carrying out pyrolysis on domestic refuse, combusting, disacidifying by soda lye washing, carrying out plasma ionization to remove dust and tar, carrying out high-power narrow-pulse electron bombardment to promote bond rupture and recombination of stubborn harmful substances, removing flue gas and peculiar smell by using high-energy oxygen water, filtering through the deduster to remove dust, and discharging through the induced fan. The domestic refuse treatment technique disclosed by the invention has the advantages of high decrement degree and higher exhaust emission quality than national standard. The system using the technique has the advantages of low investment, simple operation, high safety and environment friendliness, low carbon and energy saving, and can comprehensively and basically solve the problem in domestic refuse.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to the field of domestic waste treatment. Background technique [0002] Due to the large amount of discharge, the composition of domestic waste is complex and diverse, and it is polluting, resourceful, and social. It needs harmless, resourceful, reduction, and socialized treatment. If it is not properly disposed of, it will pollute and affect the environment. Sanitation, waste of resources, damage to production and living safety, and damage to social harmony. Disposal of domestic waste is to quickly remove domestic waste, carry out harmless treatment, and finally make reasonable use of it. [0003] The most widely used domestic waste treatment methods are as follows: [0004] 1. Landfill: Domestic waste landfill covers a large area. According to incomplete statistics, the land area occupied by domestic waste landfill in my country has exceeded 50,000 square kilometers. Afte...

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Problems solved by technology

[0004] 1. Landfill: Domestic waste landfill covers a large area. According to incomplete statistics, the land area occupied by domestic waste landfill in my country has exceeded 50,000 square kilometers. After landfill, domestic waste cannot be completely decomposed for a long time. Recycled resources are completely wasted, and are very easy to reproduce pathogenic bacteria, viruses and other harmful organisms, especially domestic waste leachate causes serious pollution to soil and groundwater sources, and there is serious air pollution around domestic waste landfills, Domestic waste landfill will produce a large amount of flammable and explosive gases, so landfill is not a sustainable development direction due to land restrictions, greenhouse gas emissions, and groundwater pollution.

[0005] 2. Incineration power generation: Although it can generate electricity or heat, it has a large investment and high operating costs. Because domestic waste in our country is not classified, has low calorific value and high water content, it is necessary to add combustion accelerants, such as coal or oil. In addition, domestic waste Garbage incineration will also produce strong carcinogens such as dioxin and benzopyrene, which seriously pollute the air and affect public health. Therefore, there are currently a series of problems in domestic waste incineration power generation due to unclassified and low calorific value. public resistance

[0006] 3. Composting treatment: The treatment period is long, the floor area is large, and there is no systematic treatment of secondary pollution technology, and more than 200 kinds of odorous substances such as hydrogen sulfide, indole, aldehydes, and ketones will be continuously produced during the composting process, including There are more than 20 kinds of carcinogens, which seriously pollute the atmosphere and the environment. Therefore, there are double problems such as technical obstacles and the exit of residues. There is no breakthrough progress so far, and it is difficult to promote on a large scale.

[0008] 1) The treatment process is single, the equipment is incomplete, and there is a lack of systematic demonstration projects; the key technology modules are absent, and the treatment objects are limited

[0009] 2) It is difficult to reuse the heavy metals and salt contained in the solid, the gas composition is changeable, it is difficult to have a stable treatment technology, and there is a leachate treatment problem, which complicates the system

[0010] 3) The test results of environmental protection, quality stability, and ecological safety of the comprehensive treatment process are poor

[0011] In summary, the existing domestic waste treatment methods have various problems such as long treatment period, serious secondary pollution, and waste of resources in domestic waste. Therefore, there is an urgent need for a safe, efficient, ecological, and non-secondary pollution domestic waste treatment and Disposal equipment module system technology completely solves the problems and hidden dangers of domestic waste

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