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Method for recycling waste clay

A clay brick and recycling technology, which is applied in the field of resource utilization of waste clay bricks, can solve the problems of narrow application area, and achieve the effects of reducing combustible content, good grindability and excellent performance

Inactive Publication Date: 2011-10-19
上海德滨环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are three main deficiencies: one is that concrete and clay bricks are not collected separately, the other is that the material properties of different components in construction waste are not excavated separately, and the third is that the application area is narrow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, the resource utilization method of waste and old clay bricks in brick-concrete construction waste, its flow process is as follows figure 1 shown, including the following steps:

[0026] Collection: transport brick-concrete construction waste that is not easy to sort and collect to designated locations;

[0027] Feeding: transport the collected construction waste to the feeding hopper with a loading vehicle;

[0028] Primary crushing: use a jaw crusher to separate the steel bars and concrete in the large pieces of construction waste, and at the same time break the construction waste into smaller particles;

[0029] Impurity removal: Manual or mechanical sorting is used to remove steel bars, wood, plastics, cloth strips and other impurities in the construction waste after the primary crushing;

[0030] Iron removal: use electromagnets to remove steel bars, iron wires, iron blocks and other metal substances remaining in the construction waste after cleaning...

Embodiment 2

[0036] Embodiment 2, the resource utilization method of waste and old clay bricks in the construction waste not containing concrete, its flow process is as follows figure 2 shown, including the following steps:

[0037] Sorted collection: the main components of construction waste (waste concrete and waste clay bricks) are collected separately at the site of construction demolition and then transported to a designated place for concentration, or waste products from the production process of clay bricks are transported to a designated place for concentration;

[0038] Feeding: Use a loading vehicle or a reclaimer to transport the collected waste clay bricks into the feeding hopper;

[0039] Primary crushing: Clay bricks are crushed with a hammer crusher; clay bricks have low strength and low hardness, primary crushing can not only meet the requirements of large crushing ratio, but also increase the hourly output and simplify the disposal process;

[0040] Impurity removal: Man...

Embodiment 3

[0045] Embodiment 3, the resource utilization method of waste and old clay bricks in brick-concrete construction waste, its flow process is as follows figure 1 shown, including the following steps:

[0046] Collection: transport brick-concrete construction waste that is not easy to sort and collect to designated locations;

[0047] Feeding: transport the collected construction waste to the feeding hopper with a loading vehicle;

[0048] Primary crushing: use a jaw crusher to separate the steel bars and concrete in the large pieces of construction waste, and at the same time break the construction waste into smaller particles;

[0049] Impurity removal: Manual or mechanical sorting is used to remove steel bars, wood, plastics, cloth strips and other impurities in the construction waste after the primary crushing;

[0050] Iron removal: use electromagnets to remove steel bars, iron wires, iron blocks and other metal substances remaining in the construction waste after cleaning...

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Abstract

The invention provides a method for recycling waste clay, which comprises the following steps of: removing impurities from construction waste materials through treatment processes such as crushing, impurity removal, iron removal, sieving and the like, and preparing the materials into a recycled aggregate meeting the requirement of grinding equipment on particle size; burning up combustibles in the recycled aggregate through a calcining process to reduce ignition loss and water content; separating a concrete component from a clay brick component in the recycled aggregate; and grinding the clay brick component to obtain regenerated powder. By the method, waste clay brick resources can be fully utilized by a simple process; moreover, the regenerated clay powder obtained in the production has good performance, wide application range and high added value.

Description

technical field [0001] The invention relates to the technical field of resource utilization of construction waste, in particular to a method for resource utilization of waste clay bricks. Background technique [0002] In the past, housing construction in my country was dominated by brick-wood structure and brick-concrete structure, so construction waste was mainly waste clay bricks. At present, the low-end recycling of construction waste is no longer a problem (for example, processing mixed construction waste into recycled coarse and fine aggregates, and then making unfired products), generally includes the following steps: crushing, using various crushing devices to crush large pieces The construction waste is broken into smaller pieces of recycled materials; impurities such as steel bars, wood, plastics, cloth strips and other impurities in the broken recycled aggregates are removed by manual or mechanical sorting; iron removal is carried out by iron removal devices The m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00
CPCY02W30/58
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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