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Solid waste treating and comprehensively utilizing method and system

A solid waste, one-way technology, applied in the direction of chemical instruments and methods, combustion methods, separation methods, etc., can solve the problems of increased safety, difficult solid waste treatment, pyrolysis gas recovery and utilization, etc., to achieve increased recovery, adaptability The effect of strong sex and huge market value

Pending Publication Date: 2018-12-18
GUANGDONG TIANYUAN ENVIRONMENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the pyrolysis gas is burned to generate heat for reuse, and the pyrolysis gas is transported to the gas boiler to generate steam, but the transport of pyrolysis gas will increase many safety problems
[0005] Since the composition of pyrolysis gas produced by different solid wastes is very different, for example, some contain a lot of dust and some contain tar, so different devices and conditions are required for their recovery and reuse. Most of the equipment is designed for one or one type of fixed solid waste treatment to design its process and device, so it is difficult to realize the treatment of many different types of solid waste and the maximum pyrolysis gas through one device of recycling

Method used

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  • Solid waste treating and comprehensively utilizing method and system
  • Solid waste treating and comprehensively utilizing method and system
  • Solid waste treating and comprehensively utilizing method and system

Examples

Experimental program
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Effect test

Embodiment 1

[0033] The pyrolysis system + waste heat recovery subsystem mainly includes a combustion chamber 5, a burner 3, a pyrolysis furnace 6, a feeding device installed at the entrance of the pyrolysis furnace, a slag removal device installed at the tail, and an exhaust fan 4-1. The pyrolysis gas outlet of the pyrolysis furnace 6 is connected to the inlet of the combustion chamber 5 through a pipeline, and the pyrolysis gas produced by pyrolysis is input into the combustion chamber 5 for combustion, providing the required heat source for pyrolysis for the pyrolysis furnace. The flue gas outlet of the combustion chamber 5 is divided into two through a pipeline, one pipeline is connected with the pyrolysis furnace, and the other pipeline is connected with the waste heat boiler, and the two pipelines are all provided with electric control valves. The main control system controls the flow of high-temperature flue gas entering the pyrolysis furnace by controlling the electronically control...

Embodiment 2

[0035] Pyrolysis system + oil recovery subsystem, when the pyrolysis gas contains a large amount of tar such as tar, if the complete combustion greatly exceeds the energy required for pyrolysis itself, it is necessary to increase the oil recovery device to recover the tar in the pyrolysis gas All or part of the recovery reduces the combustion value of the pyrolysis gas, and at the same time, a by-product can be added, which has great economic value. An oil recovery subsystem is added to the pyrolysis system, preferably using a two-stage oil condenser. The two-stage oil condenser includes a first oil condenser 12 and a second oil condenser 13. The pyrolysis gas outlet of the pyrolysis furnace is connected to the side gas inlet at the bottom of the first oil condenser 12 through a pipeline, and an electrical outlet is arranged in the middle. Control the valve, the pyrolysis gas enters the first oil condenser 12 from the side gas inlet, the top gas outlet at the top of the first ...

Embodiment 3

[0037] Pyrolysis system + filtration subsystem + oil recovery subsystem, compared with Example 2, the filtration subsystem is added, the reason is that the pyrolysis gas generated by the pyrolysis of some solid wastes contains a large amount of dust, if it will contain a large amount of dust If the pyrolysis gas is directly recovered by oil condensation, the resulting oil may also contain a large amount of dust. The equipment and pipelines through which the pyrolysis gas passes may accumulate a large amount of dust, causing pipeline blockage failures and potential safety hazards. Therefore it is necessary to increase the filtering operation to this type of application, and increase the filtering subsystem, add a pipeline to the filter from the pyrolysis gas outlet of the pyrolysis furnace, and the outlet of the filter is connected to the top of the first oil condenser 12 The top gas outlet, the filtered pyrolysis gas enters the first oil condenser 12 from the top inlet gas port...

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Abstract

The invention discloses a solid waste treating and comprehensively utilizing method and system. The method is characterized by comprising the steps: sending solid waste into a pyrolyzing furnace by aconveying device, pyrolyzing the solid waste in the pyrolyzing furnace, choosing whether filtering treatment is performed and whether oil recovery treatment operation are performed on pyrolyzing gas generated by pyrolysis according to ingredients of the pyrolyzing gas; further choosing whether waste heat recovery and air preheating operation need to be performed, wherein all the control can achieve selection of different work modes by controlling switches of electric control valves at the corresponding positions. According to the method, different work modes can be flexibly chosen in the samesystem according to the characteristics of pyrolyzing gas generated by pyrolysis, heat of high-temperature gas generated by in all the links can be fully utilized, and the purpose that the heat is fully utilized before the gas is exhausted is ensured; high-quality tar products are increased and recycled, the whole system has strong adaptability, treatment on varieties of solid waste can be met, comprehensive utilization is achieved, an application prospect is wide, and great market value is achieved.

Description

technical field [0001] The invention relates to garbage treatment equipment, in particular to a method and system for solid waste treatment and comprehensive utilization. Background technique [0002] With the continuous acceleration of urban modernization, the discharge of primary solid waste is increasing day by day. Traditional solid waste recycling methods and systems have caused serious land and air pollution, making it difficult to meet the needs of sustainable development. Solid waste is a renewable resource. If it can be effectively integrated and utilized, it can create huge economic benefits. At present, government departments are paying more and more attention to the recycling of solid waste resources. With the acceleration of urbanization and industrialization, the construction of solid waste treatment facilities in my country will increase significantly in the future. [0003] The pyrolysis method is to use the thermal instability of the solid waste to heat an...

Claims

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Application Information

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IPC IPC(8): C10B53/00C10B57/00B01D46/00F23G7/06C10B49/02
CPCB01D46/00F23G7/06C10B49/02C10B53/00C10B57/00Y02P20/129
Inventor 蔡兴飞文岳雄王立
Owner GUANGDONG TIANYUAN ENVIRONMENTAL TECH
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