Multi-type garbage pyrolysis system and multi-type garbage treatment method thereof

A multi-type, waste technology, used in energy input, special forms of dry distillation, coke ovens, etc., can solve the problem that the moisture content of the feed waste affects the stable operation of the pyrolysis gasification system, increases equipment investment and operating costs, and treats waste types. It can reduce the risk of dioxin, improve the utilization efficiency of heat and waste heat, and improve the efficiency of pyrolysis.

Inactive Publication Date: 2021-03-26
NANJING WONDUX ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The type of garbage it treats is relatively single. If the moisture content of the feed garbage is too high, it will affect the stable operation of the pyrolysis gasification system. The heat energy generated by cracking is effectively used, and the economy is not good

Method used

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  • Multi-type garbage pyrolysis system and multi-type garbage treatment method thereof

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Embodiment 1

[0034] Embodiment 1: A multi-type garbage pyrolysis system and method, which is characterized in that it includes systems (1) garbage gradient preheating system, (2) pyrolysis system, (3) pyrolysis oil-gas combustion system, (4) Flue gas waste heat utilization system, (5) Pyrolysis reactor heating and temperature control system, (6) Tail gas treatment system.

[0035] (1) Garbage gradient preheating system: the system includes waste crushing hopper A with high moisture content and low calorific value, and multi-stage gradient preheaters connected vertically alternately. Carry out certain deacidification and denitrification synergistic pretreatment on flue gas;

[0036] (2) Pyrolysis system: the system includes waste crushing hopper B with low moisture content and high calorific value, pyrolysis reaction device, which includes gradient preheating waste feed inlet, heating temperature control device, flue gas insulation system, thermal Decomposition oil and gas outlet, pyrolysi...

Embodiment 2

[0043] Example 2: Use this system to carry out experiments on domestic waste collected and transported in different areas. Some of the domestic waste has a moisture content of about 65%, and some of the sieved domestic waste has a moisture content of about 30%. First, the domestic waste with a moisture content of 30% Put the garbage into the hopper B to crush the particle size to about 15mm, then use the heating and temperature control device to gradually increase the temperature of the pyrolysis reactor to 650°C, keep the pyrolysis temperature at 650°C for 2 hours, and remove the pyrolysis residue after the pyrolysis reaction Spiral to the hopper 11 through the outlet 10, the pyrolysis oil gas enters the combustion device 15 through the pyrolysis oil gas pipeline 12, and the pyrolysis oil gas burns in the porous medium through the igniter and air blowing, and the temperature is kept at about 850 ° C. After heating, it is porous The medium effectively preheats the air entering ...

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Abstract

The invention discloses a multi-type garbage pyrolysis system and a multi-type garbage treatment method thereof. The system comprises a garbage gradient preheating system, a thermal cracking system, apyrolysis oil gas combustion system, a flue gas waste heat utilization system, a pyrolysis reactor heating temperature control system and a tail gas treatment system. According to the invention, high-moisture-content low-heat-value garbage is subjected to multi-stage gradient preheating and drying through combustion flue gas and then mixed high-heat-value garbage to be subjected to a thermal cracking reaction in a pyrolysis device, so that stable and efficient operation of the pyrolysis reaction device is achieved, and pyrolysis energy consumption is reduced; and pyrolysis oil gas is efficiently and sufficiently combusted through a porous medium material, so that aiming at high-temperature flue gas waste heat utilization, efficient and stable pyrolysis of multiple types of garbage components can be achieved, and finally the harmless and resource utilization target of garbage is achieved.

Description

technical field [0001] The invention relates to the technical field of garbage pyrolysis, in particular to a multi-type garbage pyrolysis system and a method for processing multi-type garbage. Background technique [0002] With the rapid development of the world economy and the improvement of people's living standards, the global urban population is increasing day by day, the amount of urban solid waste is also increasing, and the content of organic matter in garbage is increasing. According to the "2019 National Annual Report on the Prevention and Control of Solid Waste Pollution in Large and Medium Cities", in 2018, the generation of general industrial solid waste in large and medium cities nationwide was 1.55 billion tons, and the generation of domestic waste was 211.473 million tons. In 2017, it was 1.31 billion respectively. tons, 200.843 million tons, and the domestic waste disposal rate reached 99.4%. Compared with previous years, while the output of various wastes ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/00C10B57/08C10B57/18
CPCC10B53/00C10B57/18C10B57/08Y02P20/129
Inventor 戴昕刘军冉根柱郭燕张小赛潘天骐赵慧慧李钦钦刘淦源洪有成
Owner NANJING WONDUX ENVIRONMENTAL PROTECTION TECH CO LTD
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