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A construction waste recycling separation process

A construction waste and process technology, which is applied in the field of construction waste recycling and separation process, can solve the problems of waste of resources, pollution, secondary pollution of ground soil, etc., and achieve the effects of energy-saving production efficiency, improving separation effect, and improving utilization rate.

Active Publication Date: 2019-02-19
HENAN WINNER VIBRATING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned "urban construction waste" treatment technical scheme is a centralized treatment method, so that effective resources cannot be effectively used according to its characteristics
To a certain extent, it has caused waste of resources and pollution of the environment.
For example: bricks and concrete are mixed together and processed together, and can only be used as roadbed and cushion, with limited economic benefits and low raw material utilization
And the sundries in the materials, such as wood blocks, plastics and other light substances will also be mixed in the finished materials in a large range, causing secondary pollution to the ground soil

Method used

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  • A construction waste recycling separation process
  • A construction waste recycling separation process
  • A construction waste recycling separation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Such as figure 1 As shown, the construction waste recycling separation process provided in this embodiment is used to separate the mixed materials in the construction waste to obtain a single material, which includes the following steps:

[0056] S1, primary crushing of mixed materials

[0057] The mixed material is crushed, and the crushed mixed material is output;

[0058] S2, primary sorting of mixed materials

[0059] Sorting the crushed mixed materials into brick-mixed materials, sorting them into first materials, second materials and dregs, and outputting the obtained first materials, second materials and dregs respectively;

[0060] S3, impurity removal treatment of the first material

[0061] removing light substances in the first material to obtain the first material after removal of impurities;

[0062] S4, crushing and screening of the first material

[0063] (a) Transport the first material after removing impurities to the first crusher for crushing, an...

Embodiment 2

[0070] The construction waste recycling separation process provided in this embodiment, on the basis of the first embodiment, provides an optimal process for brick-concrete separation in step S2, specifically as follows.

[0071] S2-1, conveying the crushed mixed material to the bar feeder, separating the muck through the bar gap of the bar feeder, and outputting the unseparated mixed material of the first material and the second material;

[0072] S2-2, transporting the unseparated mixture of the first material and the second material to the brick-mix separator, implementing brick-mix separation, and obtaining the separated first material and second material;

[0073] S2-3, performing crushing and iron removal treatment on the separated first material; and performing crushing treatment on the separated second material.

[0074] The mixed material crushed in step S1 is transported to the rod feeder, and the muck is separated through the gap between the rods in the rod feeder. ...

Embodiment 3

[0079] The construction waste recycling separation process provided in this embodiment includes the following process engineering in addition to the process described in Embodiment 1 or Embodiment 2.

[0080] Wherein the subsequent processing of the first material, that is, the concrete material, includes the following processing procedures in addition to the above steps S3, S4, and S5.

[0081] The following steps are also included between the steps (a) and (b):

[0082] (a1) Return the coarse material on the first sieve to the first crusher for re-crushing, and sieve through the first screening device to obtain the coarse material on the first size sieve and the fine material on the first sieve. materials;

[0083] (a2) Return the coarse material on the sieve of the first size to the first crusher for re-crushing, and sieve through the first screening device to obtain the coarse material on the second size sieve and the first sieve Fine material;

[0084] (a3) Return the ...

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Abstract

The invention relates to a building waste recycling separation technology which is used for separating mixed materials in building waste so as to obtain single materials. The technology comprises the following steps of 1, primary crushing treatment of mixed materials, wherein an obtained first material, an obtained second material and waste soil are output separately; 2, primary sorting of the mixed materials; 3, impurity removal treatment of the first material; 4, crushing and screening treatment of the first material; 5, secondary sorting. The technology has the advantages of being efficient, environmentally friendly, capable of saving energy and high in production efficiency, the brick and concrete separation effect can be greatly improved, and concrete materials with the high purity can be obtained conveniently, so that the separated concrete materials are adopted as aggregates of recycled concrete, and the resource utilization rate is increased.

Description

technical field [0001] The invention relates to the technical field of construction waste treatment, in particular to a recycling and separation process for construction waste. Background technique [0002] "Urban construction waste" is mainly composed of the following four components: 1. Brick and concrete mixture, 2. A large amount of muck, 3. A small amount of light impurities such as sawdust and clothing, 4. A small amount of sundries such as steel wrapped in concrete . [0003] The current "urban construction waste" treatment technology plan: mainly adopts centralized crushing and grading treatment methods, and performs overall treatment of bricks, concrete and light objects. All construction waste is mixed together and sent to the feed bin by a forklift. The material is fed smoothly and evenly through the "vibrating feeder" and directly sent to the "jaw crusher". The material crushed by the "jaw crusher" is transported to the "impact crusher" by the "belt conveyor",...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B18/16
CPCC04B18/167Y02W30/91
Inventor 曹修国王玥郑新
Owner HENAN WINNER VIBRATING EQUIP