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Gasification-liquefaction disposal method, system and equipment for household garbage

A domestic garbage and gasifier technology, which is applied in waste treatment, combustible gas production, solid waste removal, etc., can solve problems such as dioxin pollution that destroys the human living environment

Inactive Publication Date: 2010-09-08
衢州市广源生活垃圾液化技术研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem of destroying the human living environment and dioxin pollution caused by landfill and incineration, and propose a technology for disposing of domestic garbage and organic waste through gasification-liquefaction, effectively inhibiting Including the formation of pollutants, no pollutants and greenhouse gases are emitted during the entire disposal process, eliminating the problem of dioxin pollution, protecting the ecological environment, and at the same time converting domestic garbage and organic waste into a chemical raw material or clean energy

Method used

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  • Gasification-liquefaction disposal method, system and equipment for household garbage
  • Gasification-liquefaction disposal method, system and equipment for household garbage
  • Gasification-liquefaction disposal method, system and equipment for household garbage

Examples

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Embodiment 1

[0028] Example 1 figure 1 In the embodiment shown, domestic garbage or organic waste is fermented to remove part of the water in the garbage storage pit, and then through sorting, the sorted organic waste materials are sent to the screw feeder, and the conveying of the screw feeder During the process, part of the water is removed again by extrusion, and the waste material is passed through CO 2 The gas-sealed feeding device is sent into the plasma gasification furnace; the garbage material is dried and pyrolyzed through the drying section and the pyrolysis section in the plasma gasification furnace, and then becomes garbage charcoal and enters the gasification section, and is separated from the The water vapor decomposition products sprayed into the gasification section by the plasma spray gun undergo gasification reaction, complete gasification, and generate CO and H 2 Hydrogen-rich syngas as the main component; the operating temperature of the drying section is controlled b...

Embodiment 2

[0029] Embodiment 2 This embodiment is for example figure 2 The general diagram of the system and Figure 4 , 5 As shown in the detailed drawings of , 6 and 7, the domestic waste gasification-liquefaction disposal system includes: the domestic waste pretreatment part ( figure 2 I zone), plasma gasification part ( figure 2 II-a zone), syngas purification part ( figure 2 III-a region) and methanol synthesis and end purification part ( figure 2 IV zone), the system mainly consists of unloading platform (73), garbage storage pit (2), crane grab (1), sorting machine (3), screw squeeze water / feeder (10), CO 2 Gas seal feeding device (13), plasma gasifier (23), plasma spray gun (24), gas-solid separator (17), circulation fan (18), carbonation reaction chamber (2007), heat exchanger (20), waste heat boiler (27), absorption reactor (32), cyclone dust collector (31), bag filter (38), induced draft fan (40), carbon monoxide shift reactor (41), CO 2Absorption tower (42), regene...

Embodiment 3

[0030] Embodiment 3 This embodiment is for example image 3 The general diagram of the system and Figure 4 , 7 As shown in the detailed drawings of , 8 and 9, the domestic waste gasification-liquefaction disposal system includes: the domestic waste pretreatment part ( image 3 I zone), plasma gasification part ( image 3 II-b zone), syngas purification part ( image 3 III-b region) and methanol synthesis and end purification part ( image 3 IV area), the system mainly consists of unloading platform (73), crane grab (1), garbage storage pit (2), sorting machine (3), digester (9), screw squeeze water / feeder ( 10), CO 2Gas seal feeding device (13), plasma gasifier (23), plasma spray gun (24), circulation fan (18), heat exchanger b (21), waste heat boiler (27), induced draft fan (40) , absorption reactor (32), cyclone dust collector (31), bag filter (38), compressor a (44), synthesis gas storage tank (48), hydrogenation mixer (49), compressor (51 ), methanol synthesis reac...

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Abstract

The invention discloses a gasification-liquefaction disposal method, a system and equipment for household garbage, which relates to an organic waste disposal method and equipment for household garbage. The method of the invention comprises the following steps: pretreating household garbage, and delivering the pretreated household garbage into a plasma gasification furnace for gasification to generate hydrogen rich synthetic gas; then cooling, deacidifying and dedusting the hydrogen rich synthetic gas to separate CO2; then producing methanol in a methanol synthesis reactor; returning the separated CO2 to a gasification system to carry out carbonation reaction with calcium oxide to release heat for providing auxiliary heat energy for gasification, and simultaneously avoiding discharge of greenhouse gases to the environment; and returning tail gas to the plasma gasification furnace for remelting treatment, thus forming a closed-loop circulation production system. Disposal of the household garbage with zero discharge and no pollution is realized, the dioxin pollution problem is avoided, and the household garbage is converted to chemical raw materials and fuel needed by people. The invention is suitable for harmless and recycling disposal of the household garbage, industrial high polymer wastes, wastes produced by utilizing a composting method and waste in a garbage sorting site.

Description

technical field [0001] The invention relates to solid waste disposal technology, in particular to a method and equipment for domestic waste and organic waste disposal. Background technique [0002] With the development of my country's national economy and the continuous expansion of urban scale, domestic garbage and organic waste have increased rapidly, resulting in flooding of garbage. At present, many cities in my country have been surrounded by garbage, which has affected the sustainable development of my country's national economy. Develop and restrict the development of the city. Household garbage and organic waste contain many harmful components. If they are not handled properly, they will pollute the environment and threaten people's health. At present, the treatment of domestic waste mainly includes waste classification and comprehensive utilization, sanitary landfill technology, composting (biochemical) technology and incineration technology. Among them, waste class...

Claims

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Application Information

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IPC IPC(8): B09B3/00B09B5/00C10J3/20
CPCY02E50/32Y02E50/30Y02W30/20
Inventor 周开根
Owner 衢州市广源生活垃圾液化技术研究所
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