Volume reduction method and device aiming at fly ash stabilization substance

Abstract

The invention discloses volume reduction method and device aiming at a fly ash stabilization substance. The method comprises the steps of step 1, feeding a fly ash stabilization substance added with achelating agent into a fly ash stabilization substance storage silo (1); step 2, conveying the fly ash stabilization substance into a transition storage silo (3) through a screw conveyor (2), and then feeding into a feeder (5) through a feeding belt conveyor (4); step 3, starting a plate feeder (6), and feeding a support plate (7) to a static pressure forming machine (9); step 4, pushing a finished product out of the static pressure forming machine through a plate pusher (8), receiving through a finished product receiving machine (10), and sending to an automatic stacker crane (11); step 5, stacking the finished products in order through the automatic stacker crane; step 6, after stacking, sending to a fly ash finished product maintenance area. According to the volume reduction method andthe device aiming at the fly ash stabilization substance provided by the invention, a high-pressure forming method is adopted, and cement has no need to be added for curing fly ash, so that the density of the fly ash stabilization substance is increased, the regular shape is formed, the transportation efficiency is improved, the utilization efficiency of landfilling storage capacity is improved,the service life of a landfill is prolonged, and the shortage of land planning of the landfill is relieved.

Description

technical field [0001] The invention relates to a solid waste incineration fly ash treatment method and device, in particular to a volume reduction method and device for stabilized fly ash. Background technique [0002] According to the "National Hazardous Waste List", it is clearly stipulated that the incineration fly ash of domestic garbage, hazardous waste and other solid waste is hazardous waste, and the code is HW18. The disposal of fly ash must be strictly in accordance with the standards of hazardous waste. [0003] At present, domestic solid waste incineration fly ash is generally stabilized and solidified by adding chelating agents and cement. After meeting the requirements of the "Standards for Pollution Control of Domestic Waste Landfills" (GB16889-2008), it is generally packaged in bulk, ton bags, etc. Transfer to domestic waste landfill for sanitary landfill. With this disposal method, due to the addition of cement to the solid waste incineration fly ash, the m...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a volume reduction method and device for fly ash stabilized products. Through the method of high pressure molding, it is not necessary to add cement to the fly ash stabilized product to become solidified fly ash, which can greatly increase the density of the fly ash stabilized product , regularizing the shape of the fly ash stabilizer can improve the transportation efficiency of the fly ash and improve the utilization efficiency of the fly ash landfill storage capacity of the landfill, thereby greatly prolonging the operating life of the existing landfill and easing the construction of new construction projects in various regions of the country. Realistic Problems of Landfill Planning Land Use Increasingly Tensed

Images