Multi-stage plasma processing method and multi-stage plasma processing system for solid waste of ship

Abstract

The invention discloses a multi-stage plasma processing method and multi-stage plasma processing system for solid waste of a ship, wherein combustible solid waste generated on the ship is coarsely crushed and then enters a transfer mixing bin, mixture of the transfer mixing bin is conveyed to a fine material crushing device and is further crushed into combustible micron-sized waste particles withthe particle size smaller than 15 [mu]m, and the water content of the combustible micron-sized waste particles is reduced to 4% or below; the waste particles are injected into a plasma vaporizing chamber in a gas conveying mode and are rapidly vaporized under the action of high-energy thermal plasma plume, and the waste particles are converted into low-heat-value crude synthesis gas; the generatedsynthesis gas flows into a combustion chamber, organic matter is completely converted into inorganic micromolecular matter such as carbon dioxide and water vapor under the auxiliary combustion of sliding arc discharge non-thermal plasma, and inorganic matter is converted into inert dust; and the gas flow processed by the combustion chamber is discharged after reaching the standard through tail gas purification measures such as quenching cooling, desulfurization and dust removal, denitrification, and deacidification.

Description

technical field [0001] The invention relates to the technical field of solid waste treatment, in particular to a multi-stage plasma treatment method and system for ship solid waste. Background technique [0002] During the voyage of ships, a large amount of ship solid waste will inevitably be produced. Numerous solid wastes not only occupy a large amount of ship space, but also directly or indirectly pollute the marine environment. Compared with ordinary cruise ships, the ship travel cycle time is longer, so the problem of solid waste disposal is more prominent. With the increasingly stringent international marine protection laws and regulations and the huge demand for oceangoing ships, it is extremely important to improve the ability of ships to dispose of solid waste on-site in a harmless manner. [0003] At present, the solid waste treatment methods on the ship mainly include: 1) storage and transfer, this method causes the solid waste to occupy the space of the ship mo...

AI Technical Summary

Problems solved by technology

However, the system did not pre-treat ship solid waste, which may lead to insufficient incineration, and the slag contains more organic substances; exhaust gas purification did not x Set up a special purification system, which may cause NO in the exhaust gas x too high

In addition, the general plasma gasification system still has the following problems in the treatment of solid waste: (1) The specific surface area of ​​the pretreated solid waste is insufficient; (2) The utilization of waste heat needs to be strengthened; (3) The plasma gasification chamber produces thermal NO x (4) The flame in the combustion chamber is unstable

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