Highway tunnel sprayed concrete rebound material collecting and utilizing system

Abstract

The invention belongs to the field of concrete recycling, and particularly relates to a highway tunnel sprayed concrete rebound material collecting and utilizing system. The system comprises a base, a smashing box is fixedly connected to the base, two smashing rollers are connected into the smashing box in a rotating mode, cleaning rollers matched with the smashing rollers are connected into the smashing box in a rotating mode, and worm wheels are coaxially fixed to the smashing rollers and the cleaning rollers. The system has the advantages that concrete rebound materials recycled in a collecting box can be conveyed into the smashing box through an arranged vacuum pump to be smashed through the two smashing rollers, broken stone particles and cement powder entering a separating box can be automatically separated through an arranged filter screen, so that labor loss caused by manual separation is avoided, in conclusion, through the arrangement of the system, the three working procedures of material receiving, smashing and separating can be combined, so that the tediousness of additionally adding the working procedures is avoided, and the efficiency of the recovery operation is greatly improved.

Description

technical field [0001] The invention belongs to the field of concrete recycling, and in particular relates to a system for collecting and utilizing rebound materials of sprayed concrete in road tunnels. Background technique [0002] Shotcrete is a construction method of spraying and pouring fine stone concrete with a pressure spray gun. It is often used to pour tunnel linings, walls, ceilings and other thin-walled structures or linings of other structures and protective layers of steel structures. Shotcrete is pre-mixed Good cement, sand, gravel, water and a certain amount of admixture are loaded into the jet machine, sent to the nozzle with high-pressure air to mix with the quick-setting agent, and sprayed to the surface of rock or concrete at a high speed to form . [0003] At present, more concrete rebound materials are often produced in the process of spraying concrete. In order to avoid the waste of concrete rebound materials, it is often necessary to recycle the concr...

AI Technical Summary

Problems solved by technology

[0003] At present, more concrete rebound materials are often produced in the process of spraying concrete. In order to avoid the waste of concrete rebound materials, it is often necessary to recycle the concrete rebound materials. Usually, a collection box is used to collect the concrete rebound materials. However, the collection box can only serve the function of storage, and the concrete rebound material stored in the collection box needs to be transported to the crushing equipment for crushing, and the crushed stone particles and cement powder produced after the concrete rebound material crushing need to be manually processed Separation, which increases the process of recycling operations, reduces the efficiency of recycling operations, and consumes a lot of manpower

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