Method for smelting host board and waste hardware, and device thereof

Abstract

The invention relates to a method and a corresponding device for melting mainboard and waste hardware, which is characterized in that: metallic parts in mainboards, computer interface equipments, cables and waste hardware are combusted and melted primarily in a main furnace body with low temperature, enabling the separation of combustible nonmetal and noncombustible nonmetal; toxic gas produced incombusting plastic is guided to the other combustion chamber for re-combustion, and the toxic gas is subject to at least on time higher temperature to reduce the gas concentration; the gas from the combustion chamber is then guided to at least one water sprinkling tower for temperature reducing and acid-base neutralization, and the acidity in the residual gas is neutralized; the gas from the water sprinkling tower enters into a cyclone dust collector, a heat exchanger and a bag type dust collector successively for accelerating the cooling and collecting the floating particle produced in the cooling process; the gas is taken out by an exhaust fan, and the purpose of secondary tempering prevention, rapid cooling and gas emission is realized; finally clean gas is emitted.

Description

technical field [0001] The invention relates to a method and device for smelting motherboards and waste metals, in particular to a smelting method and device that can effectively separate metals, burnable and non-burnable non-metallic substances, and can eliminate toxic gases (DIOXIN) produced when burning plastics. A smelting method and device for smelting useful substances with residual heat to meet environmental requirements for gas emissions. Background technique [0002] With the change of people's living style caused by the advancement of science and technology, and the popularization of personal computers, various waste metals (waste containing metal) and discarded computer motherboards, computer interface equipment, cables, etc. have increased in a large amount. One common feature is that it is not easy to recycle, destroy and decompose, so it is not suitable for general landfill treatment. If it is incinerated, the temperature of the ordinary incinerator will easily...

AI Technical Summary

Problems solved by technology

[0002] With the change of people's living style caused by the advancement of science and technology, and the popularization of personal computers, various waste metals (waste containing metal) and discarded computer motherboards, computer interface equipment, cables, etc. have increased in a large amount. One common feature is that it is not easy to recycle, destroy and decompose, so it is not suitable for general landfill treatment. If it is incinerated, the temperature of the ordinary incinerator will easily cause the plastic material on the main board or waste hardware to burn. Toxic gases such as dioxin (DIOXIN) are produced, which often form a huge load on environmental protection

[0003] For this reason, various types of incinerator devices have been continuously researched and developed. However, in most patents or other technical documents that have prior rights, traditional waste incinerators mostly perform related incineration actions with a single furnace body. The temperature and time of combustion are fixed, and the combustion temperature and time cannot be changed arbitrarily according to actual needs or changes. Therefore, when it is applied to substances with complex composition and easy to produce toxicity after combustion (such as: the above-mentioned computer motherboards, cables, etc.), It is easy to have incomplete combustion and produce toxic gas (DIOXIN). Incomplete combustion of waste is not conducive to subsequent treatment. Leakage of toxic gas will cause environmental pollution, which leads to incineration of environmentally friendly waste. The original intention is greatly reduced

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