A high-quality construction solid waste treatment process

Abstract

The invention relates to the field of construction waste treatment, and discloses a process for treating construction solid waste with high quality. The metal waste is put into the incinerator, the non-metallic waste is placed on the screen and heated to 760-780°C, and the constant temperature is 30-60min. During the heating process, the screen is shaken. After the heating is completed, the material above the screen is aggregate waste, which is sieved. The material is gel waste; metal waste is directly recycled; aggregate waste is screened out by multi-stage screening sand, stone, brick; sand and stone are directly recycled; bricks are broken into granules and then recycled; gel waste Grind into powder, add additives and mix evenly to obtain a blendable gel material for recycling. The refined construction solid waste treatment process of the invention has the advantage of accelerating the consumption of construction solid waste.

Description

technical field [0001] The invention relates to the field of construction waste treatment, in particular to a process for treating construction solid waste with high quality. Background technique [0002] Building is an important place for people's activities and life. With social development and changes in urban planning, many buildings need to be demolished and rebuilt or refurbished due to old age or low land utilization. Whether it is rebuilt or refurbished, construction waste will be generated. , especially the construction solid waste, referred to as construction solid waste. [0003] Construction solid waste mainly contains concrete, bricks, wood, metal, glass and other substances. Among them, due to the wide application of concrete, concrete materials account for a large proportion of construction solid waste. They are all damaged and mixed together, and construction solid waste is formed by random doping and mixing of various substances, which makes it difficult to...

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Problems solved by technology

[0003] Construction solid waste mainly contains concrete, bricks, wood, metal, glass and other substances. Due to the wide application of concrete, concrete materials account for a large proportion of construction solid waste. They are all damaged and mixed together, and the construction solid waste is formed by random doping and mixing of various substances, which makes it difficult to directly reuse the construction solid waste. Therefore, usually the construction solid waste is mainly treated by landfill. However, burying construction solid waste in the soil will affect the planting ability of the soil and cause soil pollution, and construction solid waste is mainly composed of hard-to-degrade materials, which will cause long-term pollution. More and more, pollution will become more and more serious

[0004] Therefore, the reuse of construction solid waste is imperative, and in the reuse of construction solid waste, metal materials and large pieces of wood that are easy to sort are usually picked out for separate recycling, and the rest of the mixed materials that are difficult to sort Use broken materials as fillers or aggregates, but due to mixed materials and different properties, the performance of fillers or aggregates is unstable. In order to ensure the quality of the project, the amount of addition is usually small, resulting in slow consumption of construction solid waste, and it is difficult to relieve construction waste. Environmental pollution caused by solid waste, therefore, there is still room for improvement

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