Method for producing mineral wool from solid waste by using plasma gasification furnace

Abstract

The invention relates to the technical field of building material production, environmental protection, energy sources and the like, in particular to a method for directly producing a mineral wool product from hot slag produced by gasification of urban solid waste by using a plasma gasification furnace. The method comprises the following steps of: treating urban solid waste in the plasma gasification furnace to obtain glass-state hot slag; making the glass-state hot slag directly flow from the bottom of the plasma gasification furnace into a heat-preserving regulating reservoir through a heat-preserving discharging channel without cooling; adding mineral auxiliary materials into the heat-preserving regulating reservoir according to a hot slag parameter measured by an online detection device; and making regulated glass-state hot slag enter a mineral wool production system from the discharging hole of the heat-preserving regulating reservoir to obtain mineral wool. Compared with the mineral wool production method in the prior art, the method for producing mineral wool from urban solid waste by using the plasma gasification furnace has the advantages of environmental friendliness, energy saving, low economic cost and resource recycling.

Description

technical field [0001] The invention mainly relates to the technical fields of building material production, environmental protection, energy and the like, and specifically relates to the direct production of mineral wool products from hot molten slag produced by gasifying municipal solid waste with a plasma gasification furnace. Background technique [0002] Mineral wool is a fluffy short fiber made from silicate melt, which has light weight, small thermal conductivity, non-combustible, moth-proof, cheap, corrosion-resistant, good chemical stability, good sound absorption performance, etc. features. It can be used for filling insulation, sound absorption, sound insulation of buildings, oxygen generators and cold storage, and filling and insulation of various thermal equipment. According to the raw materials used, it can be divided into two categories: rock wool and slag wool. Rock wool is an inorganic fiber made from natural rocks such as basalt, gabbro, dolomite, iron or...

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Problems solved by technology

On the other hand, due to the complex composition and unstable properties of municipal solid waste, the application of the prior art to the lower glassy hot slag is limited to water cooling and lowering the temperature of the glassy hot slag and using the formed solid slag to dispose of it. making bricks

Obviously, the water cooling and cooling process in the prior art consumes a large amount of water to absorb the heat of the glassy hot slag, and the resulting large amount of heat will be released into the atmosphere, which not only forms atmospheric thermal pollution, but also wastes the heat of the glassy hot slag. A large amount of heat energy contained in hot slag

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