Secondary feeding system for alkaline phenolic resin synthesis

The secondary feeding system comprises a kettle body, feeding cylinders are arranged on the left side and the right side of the upper portion of the kettle body, connecting rods are welded to the inner sides of the feeding cylinders, an outer sleeve is installed in the center of the upper portion of the kettle body, and a sealing plate is connected to the upper right portion of the outer sleeve. Athreaded rod is mounted above the outer sleeve, an adjusting block is arranged in the tail end of the threaded rod, a mounting rod is connected to the outer side of the adjusting block, a limiting plate is connected to the tail end of the mounting rod, a feeding box is arranged on the outer side of the limiting plate, a servo motor is mounted at the bottom of the kettle body, and a fixed brush isconnected to the left side of the bottom of the screw rod; a limiting rod is connected to the left side of the threaded sleeve, and a discharging pipe is arranged on the lower right portion of the kettle body. According to th