Compound feeder used for particle raw material

The utility model relates to a compound feeder of a straight pull silicon single crystal furnace, and is characterized in that a circle of feeding cylinder flange is arranged on the upper end of a feeding cylinder, and a conical mouth is welded in a cylinder at the lower end of the feeding cylinder; a blanking machine is reverse cone shaped, and the lower end of the blanking machine is a round discharge hole; the upper end of a pull rod sleeve and a flange are welded, the lower end of the pull rod sleeve is arranged in the feeding cylinder, the flange and the feeding cylinder flange at the upper end of the feeding cylinder are connected through a screw and a nut, the lower end of the feeding cylinder and the blanking machine are connected through bayonets which are matched with each other, the lower end of a pull rod penetrates through the pull rod sleeve and is screwed with a sealed frustum arranged in the blanking machine, the pull rod and the pull rod sleeve have a sliding fit, the upper end of the pull rod is inserted into an axial through hole of a heavy punch, and is connected with the heavy punch through a bolt. The compound feeder, provided by the utility model, has better high temperature resistance, splattering of a compound raw material and melted silicon can be effectively avoided, and the compound feeder has the advantages of simple structure, easiness in implementation, simple operation and strong practicability.