Patent ID: 7430960

Claim:
An apparatus for removing foreign matters from construction waste, comprising: a feeding section installed at a lower end of a hopper; a heating and compressing section having an entrance which is coupled to the feeding section and an exit which is defined at a lower end of the heating and compressing section; and a shooter opening and closing section coupled to the exit of the heating and compressing section; wherein the heating and compressing section comprises a hollow casing having a vertical flange on a side thereof, a compression cylinder installed on the casing, a compression plunger fitted into the casing and coupled to a piston rod of the compression cylinder, and a band heater wound on a circumferential outer surface of and adjacent to a lower end of the casing, wherein the shooter opening and closing section has an opening and closing body which comprises a panel fitted around the lower end of the casing and having a pair of sliding channels defined on both sides of a lower end thereof; and a shooter which is to be fitted into the sliding channels is coupled to a piston rod of an opening and closing cylinder secured to a frame, and wherein a heating section is provided below the shooter opening and closing section in such a way as to be capable of reciprocation in a vertical direction; the shooter has a pair of connection members which are respectively connected to both sides of the shooter to extend in the vertical direction and have a predetermined length; a support panel is integrally coupled to lower ends of the connection members to extend in a horizontal direction and is defined with a through-hole; a heater support plate, into which a plurality of heaters are fitted, is placed between the shooter and the support panel and is coupled to a piston rod of a moving cylinder which is secured to the support panel; and the shooter which faces the heater support plate is defined with a plurality of heater guide holes through which the heaters pass, respectively.