Environmental-friendly building waste crushing device

Abstract

The invention discloses an environmental-friendly building waste crushing device. The environmental-friendly building waste crushing device comprises a shell, a crushing device, a material returning device and a dust falling conveying device, wherein the crushing device comprises a top cover which is in threaded connection with the top of the shell; the inner part of the shell is fixedly connectedwith a crushing box; the inner part of the crushing box is in rotary connection with three transmission shafts; one transmission shaft is sleeved on an output end of a servo motor; the servo motor ismounted on an outer side wall of one end of the shell; the top of the top cover is fixedly connected with a feeding hopper; the inner part of the feeding hopper communicates with the inner part of the crushing box; the material returning device comprises two material returning barrels which are fixedly connected with two sides of the inner part of the shell; the inner parts of the material returning barrels are in rotary connection with transmission rods; the bottom of the crushing box communicates with a material receiving box; and two sides of the top end of the material receiving box are fixedly connected with return pipes. The two transmission rods drive a first auger to upwards convey materials entering from the return pipes along the material returning barrels; and the materials areconveyed into the crushing box again through a material returning pipe, so that the waste is repeatedly crushed until crushing requirements are met.

Description

technical field [0001] The invention relates to a crushing device, in particular to a crushing device for environmentally friendly construction waste. Background technique [0002] Construction waste refers to the dregs, spoils, waste materials, silt and other wastes generated during the construction, laying or demolition, and repair of various buildings, structures, pipe networks, etc. by construction units or individuals. With the acceleration of industrialization and urbanization, the construction industry is also developing rapidly, and the accompanying construction waste is increasing. The amount of construction waste in China has accounted for more than one-third of the total urban waste. The amount of construction waste in my country It has already accounted for 30%-40% of the total amount of urban waste. It is calculated based on the standard of 500-600 tons / 10,000 square meters. By 2020, my country will add about 30 billion square meters of construction area, and the...

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