Regenerated active powder prepared from construction waste as well as method and device thereof

A construction waste and active powder technology, applied in the field of construction waste recycling, can solve the problems of harmful human health, infiltration of harmful substances, low compressive strength, etc., and achieve the effect of increasing value and improving activity

Pending Publication Date: 2019-01-22
中建生态环境集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, a large amount of construction waste piled on the land will reduce the quality of the soil and reduce the productivity of the soil; moreover, the pile of construction waste in the air will affect the air quality, and some dust particles will be suspended in the air, which is harmful to human health; During the stacking process, the long-term accumulation will cause harmful substa

Method used

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  • Regenerated active powder prepared from construction waste as well as method and device thereof
  • Regenerated active powder prepared from construction waste as well as method and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0047] Example 1

[0048] The construction waste from the demolished steel-concrete residential building is transported to the jaw crusher by the feeder for primary crushing, and then the steel bars are manually stripped and removed. The materials after primary crushing are transported to the impact crusher through the first conveyor belt for secondary crushing Crushing to obtain crushed materials with a particle size of not more than 50mm; the crushed materials obtained are transported to the winnowing dust collector through the second conveyor belt, and light impurities such as plastics, wood chips and cloth pieces are removed by the winnowing dust collector, and on the second conveyor belt A permanent magnet is suspended in the air. When the crushed material is transported to the air separation and impurity removal machine via the second conveyor belt, the ferromagnetic material in the crushed material is sucked and removed by the permanent magnet, and the light impurity and fe...

Example Embodiment

[0049] Example 2

[0050] The construction waste from the demolished steel-concrete residential building is transported to the jaw crusher by the feeder for primary crushing, and then the steel bars are manually stripped and removed. The materials after primary crushing are transported to the impact crusher through the first conveyor belt for secondary crushing Crushing to obtain crushed materials with a particle size of not more than 50mm; the crushed materials obtained are transported to the winnowing dust collector through the second conveyor belt, and light impurities such as plastics, wood chips and cloth pieces are removed by the winnowing dust collector, and on the second conveyor belt A permanent magnet is suspended in the air. When the crushed material is transported to the air separation and impurity removal machine via the second conveyor belt, the ferromagnetic material in the crushed material is sucked and removed by the permanent magnet, and the light impurity and fe...

Example Embodiment

[0051] Example 3

[0052] The construction waste from the demolished steel-concrete residential building is transported to the jaw crusher by the feeder for primary crushing, and then the steel bars are manually stripped and removed. The materials after primary crushing are transported to the impact crusher through the first conveyor belt for secondary crushing Crushing to obtain crushed materials with a particle size of not more than 50mm; the crushed materials obtained are transported to the winnowing dust collector through the second conveyor belt, and light impurities such as plastics, wood chips and cloth pieces are removed by the winnowing dust collector, and on the second conveyor belt A permanent magnet is suspended in the air. When the crushed material is transported to the air separation and impurity removal machine via the second conveyor belt, the ferromagnetic material in the crushed material is sucked and removed by the permanent magnet, and the light impurity and fe...

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Abstract

The invention relates to regenerated active powder prepared from construction waste as well as a method and a device thereof, the method comprises the following steps: S1, crushing the construction waste, and removing steel bars so as to obtain a crushed material with the particle size of not more than 50 mm; removing ferromagnetic substances and light impurities in the crushed material to obtainan impurity removal material; S2, screening the impurity removal material to obtain a medium-particle-size material with the particle size of 5-50 mm and a small-particle-size material with the particle size of less than 5 mm, and removing soil carried by the small-particle-size material to obtain a soil-removing material; S3, sequentially drying and grinding the medium-particle-size material andthe soil-removing material obtained in the step S2 so as to obtain regenerated materials; and S4, mixing the regenerated materials, coal ash and mineral powder in a weight ratio of (10-100): (0-90): (0-90). The device disclosed by the invention comprises a primary crushing system, a secondary crushing system, an impurity removal system, a first screening system, a second screening system, a dryingsystem and a grinding system. The regenerated active powder disclosed by the invention has better activity performance.

Description

technical field [0001] The present disclosure relates to the technical field of construction waste recycling, in particular, to a regeneration active powder prepared from construction waste and its method and device. Background technique [0002] Construction waste is solid waste generated during the process of new building, reconstruction, expansion or demolition of buildings. According to different sources of construction waste, it can be divided into construction waste and demolition construction waste. Construction waste, as the name implies, is in Solid waste generated during new construction, reconstruction or expansion projects, and demolition construction waste is the construction waste generated during the demolition of buildings. Construction waste has a wide range of erosive effects on our living environment. If construction waste is ignored for a long time, it will have a bad impact on urban environmental sanitation, living conditions, and land quality assessment...

Claims

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Application Information

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IPC IPC(8): C04B18/16C04B33/132C04B33/135B02C21/00B02C23/14B09B3/00
CPCC04B18/16C04B33/1324C04B33/1352C04B40/0039B02C21/00B02C23/14B09B3/00B09B2101/02C04B18/08C04B18/12Y02W30/58Y02W30/78Y02P40/60Y02W30/91
Inventor 苏少锋严明明王晓波付艳萍王宗葳曹峰董海涛吴昊
Owner 中建生态环境集团有限公司
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