The two-stage urethane crushing sorting device with which the present invention is easy to repair is located at right angles to the side frame and side frame on which the crushing sorting network is installed, and a plurality of lower frames supporting the fastening of the side frames, and at a right angle to the plurality of lower frames. A plurality of first fastening members having an upper incision groove formed in a quadrangular column shape as being positioned, and inserted into an upper incision groove of the first fastening member, an arrow protrusion formed at a lower portion, and a first upper insertion groove portion and a first at one side As the lower insertion groove is formed, the side supporting member is fastened between the side frame and the one side sorting network, and one side is inserted and fastened to the upper insertion groove and the lower insertion groove of the side supporting member, so that lower protrusions are formed on both sides and corners are rounded. Gown between a plurality of sorting networks in which a square-shaped hole is formed in a matrix form and the side support members on both sides In the upper screen and the sorting network located at the bottom is fastened so as to extend horizontally from top to bottom, the long arrow protrusion and the cross section inserted into the long incision groove of the first fastening member of the square column shape located in the middle An intermediate fastening member consisting of a long wing having a flat shape and a long groove formed on the upper part, and a long intermediate arrow part and a body having a square pillar-shaped body and a stepped jaw formed under the body being inserted into the long groove of the intermediate fastening member A plurality of joints composed of an intermediate longitudinal member composed of a second elongated groove formed in a protruding portion narrowed by an upper upper step, and a third fastening member having a double arrow protrusion inserted into the second elongated groove portion of the intermediate longitudinal member at the bottom One lower protrusion is coupled to the upper step of the middle vertical member at the end of the member and the middle vertical member of the joint member. The upper end annihilation network, the lower end selection network to which one lower protrusion is coupled to the lower stepped side of the intermediate vertical member, and the upper end annihilation network and the lower lower projection of the lower end selection network to be engaged with the lower projecting portion of the arrow. An end side support member formed with an upper insertion groove portion to which the other side of the upper end sorting network is coupled and a lower insertion groove portion to which the other side of the lower end selection network is coupled, and an arrow protrusion formed at a lower portion of the end side support member. It characterized in that it consists of a first fastening member to the end, and the end side frame fastened to the other side of the plurality of lower frames and the end side support members.
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