Solid waste plasma gasification pyrolysis recycle transformation method

A technology of solid waste and plasma, which is applied in the direction of solid treatment gas purification, gasification process, and production of combustible gas. It can solve the problems of extremely high power, no value, and increased operating costs of power consumption, so as to prevent recombination and non-toxic Effect of gas and substance emission and heat reduction

Active Publication Date: 2017-09-29
东莞中普环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the current plasma garbage gasification technology still has many deficiencies. First of all, direct gasification of garbage with a plasma torch requires a huge amount of power, and its power consumption rate can reach 30% to 45% of its power generation capacity. Excessive electricity leads to greatly increased operating costs, making it unworth

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  • Solid waste plasma gasification pyrolysis recycle transformation method

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Embodiment 1

[0025] A method for regeneration and conversion of solid waste by plasma gasification cracking, specifically comprising the following steps:

[0026] (1) Garbage sorting pretreatment: manually screen out the garbage with a size larger than 30cm in the solid garbage that has recycling value, and the remaining small-sized solid garbage uses a conveyor belt at a speed of 0.5m / s to separate metal substances and For non-metallic substances, the non-metallic substances are broken into solid particles with a particle size of 1 cm by a crusher, and the solid particles are extruded into cylindrical blocks with a diameter of 20 cm and a length of 30 cm through an extruder; wherein, the The eddy current magnetic separator described above mainly screens ferrous magnetic metals and copper-aluminum non-magnetic metals. The magnetic field strength of the magnetic system is 200Gs. Compared with single magnetic separation, eddy-current magnetic separation is more superior in performance, and ca...

Embodiment 2

[0031] A method for regeneration and conversion of solid waste by plasma gasification cracking, specifically comprising the following steps:

[0032] (1) Garbage sorting pretreatment: manually screen out garbage with a size larger than 30cm in solid garbage that has recycling value, and use a conveyor belt to separate metal substances and For non-metallic substances, the non-metallic substances are broken into solid particles with a particle size of 2cm by a crusher, and the solid particles are extruded in sections by an extruder into cylindrical blocks with a diameter of 20cm and a length of 30cm; wherein, the The eddy current magnetic separator described above mainly screens ferrous magnetic metals and copper-aluminum non-magnetic metals. The magnetic field strength of the magnetic system is 1500Gs. Compared with a single magnetic separation, the eddy current magnetic separation is more superior in performance, and can screen out more than 60% of copper and aluminum waste. T...

Embodiment 3

[0037] A method for regeneration and conversion of solid waste by plasma gasification cracking, specifically comprising the following steps:

[0038] (1) Garbage sorting pretreatment: manually screen out the garbage with a size larger than 30cm that has recycling value in the solid garbage, and use the conveyor belt to separate the metal substances and For non-metallic substances, the non-metallic substances are broken into solid particles with a particle size of 3cm by a crusher, and the solid particles are extruded in sections by an extruder into cylindrical blocks with a diameter of 20cm and a length of 30cm; wherein, the The eddy current magnetic separator described above mainly screens ferromagnetic metals and copper-aluminum non-magnetic metals. The magnetic field strength of the magnetic system is 2500Gs. The magnetic metal improves the recycling rate, and at the same time prevents the metal from absorbing too much heat and consuming electricity.

[0039] (2) Plasma ga...

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Abstract

The invention discloses a solid waste plasma gasification pyrolysis recycle transformation method, which belongs to the technical field of garbage disposal, and mainly comprises the four steps of sorting and pretreating wastes, carrying out gasification pyrolysis on plasma, purifying gas and regenerating energy. Through adding a combustion-supporting mixture, an average comprehensive heat value and the fixed carbon content of the solid wastes are improved, so that the power consumption during a plasma gasification pyrolysis process is reduced; meanwhile, the method and a power station are linked to offset a part of and even all electric energy in the later period, so that the operation cost is reduced. A pulsed electromagnetic valve is utilized for spraying a dioxin inhibitor, dioxin is prevented from compounding at a low-temperature area, a later-period filtration and adsorption device is cooperated to thoroughly purify gas, and finally residues produced by gasification can be used for manufacturing microcellular foam glass used as an adsorbing medium, so that cyclic utilization of resources is realized. The solid waste plasma gasification pyrolysis recycle transformation method provided by the invention is high in recovery utilization rate, free of poisonous gas and matter discharge, green and environmentally-friendly, and favorable in economic benefit.

Description

technical field [0001] The invention relates to the technical field of garbage treatment, in particular to a plasma gasification cracking regeneration conversion method for solid garbage. Background technique [0002] The domestic waste disposal methods in my country are mainly landfill and incineration. Landfill not only occupies a large amount of land, but also pollutes groundwater, which is a last resort. Nevertheless, there are not many sites available for landfill in areas where land resources are scarce. Although the incineration method has a high volume reduction ratio and can recover energy, it has been strongly opposed by the public due to pollution problems such as dioxins. There is an urgent need to develop a new generation of alternative incineration technologies that are environmentally friendly and energy-saving. [0003] Plasma is the fourth state of matter, which has many unique physical and chemical properties different from solid, liquid and gaseous state...

Claims

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Application Information

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IPC IPC(8): C10J3/20C10J3/72C10K1/30
CPCC10J3/20C10J3/72C10J2300/0906C10J2300/0946C10J2300/0983C10J2300/1238C10J2300/1671C10J2300/1807C10K1/003C10K1/30
Inventor 王兆国
Owner 东莞中普环境科技有限公司
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