Method and equipment for crushing steel bars in rolling type concrete beam

Abstract

The invention relates to a method and equipment for crushing steel bars in a rolling type concrete beam. The equipment is used for finely crushing the preliminarily crushed concrete beam and thoroughly and effectively removing concrete blocks and stirrups on main steel bars. Firstly, a rolling device is adopted, and the concrete blocks between the main steel bars are rolled and crushed through therolling device; then the rolled and crushed stirrups and concrete blocks are pressed down from the main steel bars through a flat pressing device, and the surfaces of the main steel bars are cleaned;and finally, roll shearing is conducted between the main steel bars, and the residual stirrups are sheared off. According to the method and equipment, the stirrups for binding the main steel bars andthe concrete blocks among the main steel bars can be sheared and crushed efficiently and reliably in stages, so that the treatment efficiency is improved. and according to the rolling type crushing equipment for the steel bars in the concrete beam, modular equipment design is adopted for main equipment, manufacturing and assembling are convenient, and daily maintenance is convenient and reliable.

Description

technical field [0001] The invention relates to a device for crushing concrete beams and cutting main steel bars inside as required to improve recycling. Background technique [0002] In the field of construction, concrete beams are often used, because steel bars are generally used as internal supports, and then concrete is poured and formed by condensation. When the building is demolished, the concrete beam is difficult to be broken by ordinary demolition equipment due to its firm structure. [0003] At present, there are some professional equipment for crushing concrete beams, such as the pre-breaking device for reinforced concrete beams with the Chinese Patent Publication No. CN107008560A applied by the applicant, which uses a special working head to carry out static pressure shearing and crushing of concrete. Broken, the concrete is quickly broken and dropped, and separated from the internal steel bars, which is convenient for transportation and the recycling and reuse ...

AI Technical Summary

Problems solved by technology

[0005] However, since the main steel bars in concrete beams have high strength and high value, if they can be recycled separately, the recycling value can be improved; but the current crushing devices are all focused on the crushing of concrete blocks, and there is no effective way for internal steel bars. Only messy rebar clusters or scraps of rebar can be formed

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