Building gravel screening device with multi-stage screening function

Abstract

The invention relates to building equipment, in particular to a building gravel screening device with a multi-stage screening function, and a swing screening mechanism used for being matched with a fixed screening plate to preliminarily screen building gravel is movably installed on one side of an inclined supporting frame. A vibration screening mechanism used for secondary screening of the gravel is installed on the other side of the inclined supporting frame, and a dumping assembly which intermittently drives the vibration screening mechanism to incline to discharge large gravel sorted out on the vibration screening mechanism is arranged below the vibration screening mechanism. The swing screening mechanism is matched with a fixed screening plate on the inclined supporting frame to preliminarily screen building gravel. The building gravel subjected to preliminary screening falls onto the vibration screening mechanism to be subjected to secondary fine screening, the finely-crushed gravel passes through the vibration screening mechanism and falls below the vibration screening mechanism, and large impurities fall below the side away from the swing screening mechanism when the dumping assembly drives the vibration screening mechanism to incline. And the selected gravels are located in the middle of the frame body.

Description

technical field [0001] The invention relates to construction equipment, in particular to a construction sand and gravel screening device with multi-stage screening function. Background technique [0002] Concrete is inevitably used in the construction of construction projects. The main components of concrete are cement and sand. In order to ensure the quality of concrete, sand and gravel filled into it as aggregate need to be sorted to avoid impurities with large particles. Mix it in. [0003] At present, most of the sand and gravel screening adopts sand screening machines. After the equipment is powered on, the loader loads the raw materials into the large-capacity storage hopper. The raw materials are put into the flat screen drum through the feeding belt, and the rotating screen drum drives the raw materials to push the blades in the drum. Squeeze and tumble to form the artificial sand screening effect that raw materials slide and roll on the screen surface, and the scre...

AI Technical Summary

Problems solved by technology

[0004] However, this equipment cannot realize the multi-level screening function. Due to the different requirements for aggregates of different building types, fine sand and gravel are required as aggregates for walls, and slightly larger sand and gravel can be allowed for similar ground buildings. The existing equipment cannot screen the same pile of sand and gravel into different grades of materials, and the scope of application is narrow

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