An automatic safety collection system for hazardous waste incineration slag

Abstract

The invention discloses an automatic safe collection system for hazardous waste incineration furnace slag. The automatic safe collection system for the hazardous waste incineration furnace slag comprises a feeder, a roller screen, a multi-stage iron remover, a jigger and a dryer which are sequentially connected, wherein the feeder is used for conveying materials into the roller screen; through theaction of the roller screen, the furnace slag with large diameters is cleaned out, and the furnace slag with proper diameters is reserved; then iron, nickel and other magnetic metals in the furnace slag are adsorbed through the multi-stage iron remover and by virtue of the adsorption effect of a magnet; and then copper, aluminum and other precious metals with high densities are cleaned out through the jigger, and the remainder waste slag is dried through the dryer, so that the storage cost can be saved. The device is capable of effectively recovering the precious metal components in the furnace slag, thereby turning waste into wealth, and reducing the floor area of the waste furnace slag.

Description

technical field [0001] The invention relates to an automatic safety collection system for hazardous waste incineration slag. Background technique [0002] In recent years, many cities in my country have built and put into operation domestic waste incineration power plants. Through incineration, the volume of waste has been greatly reduced, the toxic substances in the waste have been completely incinerated, and the waste heat generated by incineration has been recycled and utilized. However, the by-product slag produced in the incineration process (including the incineration residue remaining on the grate and the particles falling from between the grate) is still relatively large (accounting for about 20% to 30% of the mass of garbage) due to its abundant resources. ), and has a certain degree of pollution to the environment, so it has attracted more and more attention, and many experts and scholars have conducted in-depth research on its resource utilization. [0003] Exist...

AI Technical Summary

Problems solved by technology

However, the by-product slag produced in the incineration process (including the incineration residue remaining on the grate and the particles falling from between the grate) is still relatively large (accounting for about 20% to 30% of the mass of garbage) due to its abundant resources. ), and has a certain degree of pollution to the environment, so it has attracted more and more attention, and many experts and scholars have conducted in-depth research on its resource utilization

[0003] Existing research and engineering practice have shown that resource utilization of slag is feasible, but since slag contains a certain amount of Fe, non-ferrous metals (mainly Cu, Al) and unburned residual garbage, if direct utilization is possible It will cause adverse effects on human health and the environment. In addition, because the existence of these substances cannot meet the technical requirements stipulated for resource utilization, the slag must be sorted and pretreated before resource utilization to recycle Fe. , Cu, Al and other waste metals, separate and collect unburned residual garbage, and properly dispose of them

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