A device that crushes construction waste and recycles it as recycled fine aggregate or safely recovers high-quality sand by attaching a foreign material removal device in the process of manufacturing crushed sand.

摘要

The present invention relates to a device for safely recovering high-quality sand by crushing construction waste and recycling it into recycled fine aggregate, or attaching a foreign material removal device in the process of manufacturing crushed sand, and more particularly, recycling construction waste into recycled fine aggregate Alternatively, in the process of manufacturing sand that has been crushed by crushing rock dust, which is a by-product of sand and aggregate, it is put into a sand washing and foreign material separator to remove soil and foreign substances to clean the sand by shredding construction waste to be recycled as recycled fine aggregate or crushed. It relates to a device for safely recovering high-quality sand by attaching a foreign material removal device in the process of manufacturing sand. According to the present invention, a high-pressure bucket is installed on the outside of a foreign material and sand washing floating separation chamber in which a foreign material discharge passage with a foreign material discharge pipe is installed on the outside of the upper input pipe, and a high-pressure jet nozzle is installed inside the foreign material and sand floating separation chamber. After installing the device and the high-pressure bottom injection device with the bottom injection nozzle installed on the conical plate with the conical injection nozzle fixed at the lower side, a sand discharge pipe is installed in the center of the high-pressure bottom injection device. ; The conical spray nozzle fixing cone plate has an inclination angle of about 5 to 45 degrees so that the sand does not naturally flow down and stagnate, and the bottom spray nozzle is assembled under the protective shape to prevent abrasion of the sand, and between the 'L' beams. It is characterized in that the sand is loaded on the conical injection nozzle and the fixed conical plate is protected from abrasion.