Construction muck regenerated soil treatment technology

Abstract

The invention provides a construction muck regenerated soil treatment technology. Before construction mucks are fed into a preliminary crushing device I to be subjected to primary crushing treatment,blocky sundries are picked out by operators. After being preliminarily crushed into to-be-treated materials with the diameter not exceeding the main crushing feed upper limit, the construction mucks fall onto a belt conveyor 2, the sundries are picked out manually, and steel bars are attracted out through an iron separator; then the materials are conveyed into a roller stone scrubber 3 through thebelt conveyor 2, water is added into the materials, and the materials are stirred, struck, ground and washed; in the stirring and washing process, blocky construction waste are struck and ground, hardened soil blocks can be crashed and pulverized, all residual soil and dust and water on the sundries are combined into slurry, and then the slurry and the blocky materials together are fed into a screening and treating device 4; after solid particles and the sundries are filtered out, the slurry goes into a sand washer to remove sand; the sand-removed slurry overflows and goes into a sedimentation tank 6, soil particles start to precipitate slowly along with slowdown of water flow; after a period of time, the soil precipitates and solidifies; through a slurry pump or other devices, the slurryis charged into a stirring machine 7 and is stirred together with organic materials and additives; after being stirred uniformly, the mixture is dehydrated and solidified through a dehydrating device8 to form finished planting soil.

Description

technical field [0001] The invention relates to a production line for cleaning, sorting, crushing, screening, sedimentation and processing of construction dregs with complex components, such as construction waste, wood, steel bars and cloth. Background technique [0002] At present, with the development of urban municipal work in our country, there is a large demand for various plantable soils required for greening every year, but there is no professional soil manufacturer at present, and there is no technology and products that can regenerate plantable soil from construction dregs. Greening manufacturers can only excavate from high-quality cultivated land with fertile soil, which will cause the phenomenon of destroying the cultivated land. [0003] On the other hand, the annual discharge of construction dregs in our country is huge, which cannot be used for farming, and because of the huge soil content, it cannot be used as construction dregs for recycling. Although the ap...

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Problems solved by technology

[0002] At present, with the development of urban municipal work in our country, there is a large demand for various plantable soils required for greening every year, but there is no professional soil manufacturer at present, and there is no technology and products that can regenerate plantable soil from construction dregs. Greening manufacturers can only excavate from high-quality cultivated land with fertile soil, which will cause the phenomenon of destroying the cultivated land

[0003] On the other hand, the annual discharge of construction dregs in our country is huge, which cannot be used for farming, and because of the huge soil content, it cannot be used as construction dregs for recycling

Although the application of construction dregs recovery technology is becoming more and more widespread, and various treatment process designs are gradually increasing, in the traditional construction dregs crushing process, more dry fixed crushing processes and dry mobile crushing processes are used, due to their energy High energy consumption, high dust emission, complex process, limited effect, and high soil content in the recycled aggregate, which makes it impossible to use as high-quality concrete aggregate

Especially when the classification of construction dregs is poor, most construction dregs crushing production lines cannot effectively separate the soil, resulting in the low strength of concrete or recycled products configured with recycled aggregates, which cannot meet the requirements Requirements

[0004] Therefore, my country's construction waste treatment industry still lacks an energy-saving, low-consumption, high-efficiency and simple production line technology that can effectively digest construction waste.

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