Waste concrete recycling and crushing device

Abstract

The invention provides a waste concrete recycling and crushing device. The waste concrete recycling and crushing device comprises a rack as well as a feeding device, a primary crushing device, a sorting device, a secondary crushing device and a sand making device which are sequentially arranged on the rack, wherein the feeding device comprises a feeding hopper arranged on the rack and a vibrating feeder arranged on the lower side of the feeding hopper; the primary crushing device is a jaw crusher, and a feeding hole of the jaw crusher communicates with a discharge hole of the vibrating feeder; the sorting device is a rotary vibration screen, and a feeding hole of the rotary vibration screen communicates with a discharge hole of the jaw crusher; a first conveying belt is arranged between a feeding hole of the secondary crushing device and a second discharging hole of the rotary vibration sieve; and a second conveying belt is arranged between the feeding hole of the sand making device and a discharge hole of an impact crusher. The device has the characteristics that production is carried out on a collection site, the particle shape of the recycled aggregate is improved, impurities in the recycled aggregate are reduced, transportation and production are convenient, and the quality of the recycled concrete can be stably improved.

Description

technical field [0001] The invention relates to a construction machine, in particular to a recycling and crushing device for waste concrete. Background technique [0002] With the development of my country's urbanization process, the discharge of construction waste is increasing year by year, and the proportion of renewable components is also increasing. However, most of the construction waste is transported to the suburbs or around the city for simple landfill or open storage without any treatment, which not only wastes land and resources, but also pollutes the environment; on the other hand, with the increasing population, The demand for sand and gravel aggregates in the construction industry continues to grow. For a long time, because sand and gravel aggregates are widely available and cheap, they are considered inexhaustible raw materials and have been exploited at will, resulting in resource depletion, landslides, riverbed diversions, and serious damage to nature. sur...

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Problems solved by technology

[0003] Moreover, in the prior art, waste concrete crushing and utilization devices have high requirements on the site, and the foundation needs to be laid in advance, and each component should be assembled to the pre-selected position in sequence. However, waste concrete is produced in different places and the size of waste concrete is different. , directly piled up and transported, messy, takes up a lot of space, and produces high transportation costs. Therefore, it is necessary to design a method that is convenient to move and collect according to the construction site, and conduct preliminary processing of waste concrete to make it easy to transport, and stabilize and improve the quality of recycled concrete. installation

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