Construction waste crushing device

Abstract

The invention provides a building waste breaking device. The building waste breaking device comprises a breaking cavity, wherein a feed hole is formed in the upper part of the breaking cavity; a conical screening mesh plate with an upward cone part is arranged at the lower part of the breaking cavity; a discharge chamber is formed under the conical screening mesh plate; strip-shaped avoidance holes are uniformly formed in the periphery of the screening mesh plate; breaking hammers rotating in a vertical plane are uniformly arranged in the periphery below the screening mesh plate; the sweeping rotation surface of each breaking hammer extends above the corresponding strip-shaped avoidance hole; the screening mesh plate is driven by a stepping motor to rotate around the conic axis of the screening mesh plate, and the stepping motor runs once every one fixed time interval, so that one strip-shaped avoidance hole in the screening mesh plate is rotated to the next strip-shaped avoidance hole; in the sleep period of the stepping motor, the breaking hammers rotate continuously to beat building materials above the strip-shaped avoidance holes. The building waste breaking device is high in breaking strength and high in breaking efficiency and has a good energy-saving effect.

Description

technical field [0001] The invention relates to the field of building construction equipment, in particular to a construction waste crushing device. Background technique [0002] In the process of building construction, a large amount of construction waste is generated, mainly involving various cement board wastes, which need to be crushed by a crushing device and then transported. For the current construction waste crushers, hammer crushers are mainly used, which use continuously rotating crushing hammers to hit large building panels so that they are crushed and then discharged. However, the current crusher has the problem that after introducing large and small building materials into the crushing cavity, the position of the building materials is not processed, and the building materials are directly hit by the breaking hammer, so that the building materials are repeatedly ejected between the breaking hammer and the crushing plate. Breaking, in this process, the building m...

AI Technical Summary

Problems solved by technology

However, the current crusher has the problem that after introducing large and small building materials into the crushing cavity, the position of the building materials is not processed, and the building materials are directly hit by the breaking hammer, so that the building materials are repeatedly ejected between the breaking hammer and the crushing plate. Breaking, in this process, the building materials are hit in the air without any fixed state, so that only a small amount of energy of the breaking hammer is transmitted to the building materials, resulting in a small crushing strength; in addition, a large number of blows have no vertical impact on the Therefore, the impact efficiency is very limited, and the loss of useless work is large, resulting in serious waste of energy

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