A microwave-assisted method for sorting recycled concrete coarse aggregate

A recycled concrete and microwave-assisted technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the problem that the quality of recycled concrete aggregate is difficult to guarantee, it is not suitable for large-scale production of recycled concrete aggregate, and the efficiency of selection Low-level problems, to achieve the effect of reducing the difficulty of crushing machinery crushing, protecting the original quality, and high screening efficiency
CN105776930BInactive Publication Date: 2018-05-22XIAN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAN UNIV OF SCI & TECH
Publication Date
2018-05-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a microwave-assisted recycled concrete coarse aggregate picking method. The method comprises the following steps of: firstly, carrying out microwave irradiation and cooling, namely 101, carrying out microwave irradiation for the first time and cooling, namely 1011 carrying out microwave irradiation on waste concrete blocks and 1012 cooling, wherein the step 1011 comprises the steps of transporting and piling the waste concrete blocks in a microwave irradiation region and then carrying out microwave irradiation on the waste concrete blocks by adopting a microwave transmitting device, and the step 1012 comprises the steps of transporting and soaking the waste concrete blocks subjected to microwave irradiation in a cooling water tank for cooling; 102, carrying out microwave irradiation for the next time and cooling; and 103, repeating the step 102 for once or twice; secondly, breaking; and thirdly, screening. The method disclosed by the invention is simple in steps, reasonable in design, easy to realize and good in use effect, and the problems of an existing recycled concrete aggregate picking method that the picking efficiency is low, mass production of recycled concrete aggregate is not applicable and the quality of the picked recycled concrete aggregate is difficult to guarantee can be effectively solved.
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Description

technical field

[0001] The invention belongs to the technical field of building material preparation, and in particular relates to a microwave-assisted method for sorting recycled concrete coarse aggregates. Background technique

[0002] Concrete aggregate refers to the granular loose material that acts as a skeleton or filling in concrete. Concrete aggregate is divided into coarse aggregate and fine aggregate. Among them, coarse aggregate includes pebbles, crushed stones, waste residue, etc., and fine aggregate includes medium and fine sand, fly ash, etc. Aggregate with a particle size greater than 5 mm is called coarse aggregate, commonly known as stone. Commonly used are gravel and pebbles.

[0003] In recent years, with the needs of economic development, many buildings have been demolished and a large amount of waste concrete has been generated accordingly, which not only causes a lot of waste of resources, but also is difficult to handle, takes up a lot of space, poll...

Claims

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