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Two-stage separation method for disposing building garbage

A construction waste and stage separation technology, which is applied in the direction of solid separation, chemical instruments and methods, and separation of solids from solids with airflow, can solve the problems of affecting the quality of recycled aggregate, high moisture content of aggregate, and poor separation effect and other problems, to achieve the effect of high screening efficiency, reduced water content and low cost

Inactive Publication Date: 2011-11-23
上海德滨环保科技有限公司
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Problems solved by technology

The existing separation equipment is usually a vibrating screen, but because the construction waste is stacked in the open air, the moisture content of the aggregate obtained after coarse crushing and neutral crushing is relatively high, and the screen is often blocked during screening, resulting in a large amount of coarse aggregate mixed with fine aggregate, the separation effect is poor, which affects the quality of recycled aggregate

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  • Two-stage separation method for disposing building garbage
  • Two-stage separation method for disposing building garbage
  • Two-stage separation method for disposing building garbage

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with specific embodiments. It should be understood that the following examples are only used to illustrate the present invention but not to limit the scope of the present invention.

[0025] The two-stage separation method of construction waste disposal of the present invention comprises the following steps:

[0026] (1) Screening: Use a screening device to classify recycled materials to obtain coarse and fine aggregates, among which recycled aggregates refer to construction waste after coarse and medium crushing.

[0027] In a preferred embodiment of the present invention, a drum-type cylindrical screen is used as a screening device, with 1 to 3 layers of screen cylinders, the main function is to separate the recycled coarse and fine aggregates and to separate part of the light combustibles into the coarse aggregates, Make it possible to separate light combustibles in the next step. Such as figure ...

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Abstract

The invention discloses a two-stage separation method for disposing building garbage. Regenerated material obtained by carrying out coarse crushing and medium crushing on the building garbage is subjected to two-stage separation by virtue of a screening device and a winnowing device so as to obtain regenerated crude and fine aggregate and light combustible material. A drum cylinder screen is taken as the screening device, and a negative pressure winnowing device is adopted. The two-stage separation method for disposing the building garbage disclosed by the invention has high screening efficiency, a sieve is difficult to block up by wet material, moisture content of the material can be reduced, dust pollution is reduced, manual sorting is substituted, and mechanical separation is realized, thus the two-stage separation method for disposing the building garbage, disclosed by the invention, is applicable to popularization and application.

Description

technical field [0001] The invention relates to comprehensive utilization of construction waste resources, in particular to a two-stage separation method for construction waste disposal. Background technique [0002] Construction waste, especially demolished old construction waste, contains a small amount of light combustible materials such as wood, plastic, and fabric. In the process of harmless disposal of construction waste, light combustibles are not completely removed, and they are still mixed in recycled aggregates, which has different degrees of harm to the resource utilization of recycled aggregates, mainly reflected in the fact that the products made of recycled aggregates can be processed Poor performance, unstable quality, and poor durability. At present, most of the existing construction waste recycling enterprises at home and abroad, the method of removing light combustible materials such as wood blocks, plastics, fabrics, etc., is manual sorting, which is usua...

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Application Information

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IPC IPC(8): B07B9/00B07B1/22B07B1/46
Inventor 杨德志全明陆沈磊祝向阳
Owner 上海德滨环保科技有限公司
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