30L Polymerization Reactor

　　The polymerization reactor, also known as a polymerization kettle, is the primary equipment used for manufacturing spherical organic polymers and preparing macromolecular compounds. Typically, it is a vertical cylindrical high-pressure vessel equipped with a jacket through which steam or chilled water can be circulated to provide heating or cooling. For emulsion polymerization, the reactor features a horizontal paddle-type agitator made of stainless steel, driven by an electric motor via a transmission system and a speed reducer. The outer wall of the reactor is usually made of carbon steel, with an inner lining of stainless steel; some reactors are also lined with enamel. During polymerization, production can be carried out either in a single reactor on an intermittent basis or in multiple reactors connected in series for continuous operation. In this case, the polymerization feed enters from the bottom of one reactor and flows upward into the next. The reactor is fitted with instruments for monitoring temperature, pressure, and other parameters, as well as inlet and outlet ports. For bulk polymerization, the reactor does not include an agitator and is not arranged in a series configuration. Additionally, there are reactors that operate by feeding monomers into a shallow tray housed within a rectangular metal box at a controlled flow rate. The polymerization reactor described here consists of a vertically oriented cylindrical reactor body. On the inner wall of the reactor body, three damping rods symmetrically arranged are designed to move radially inward and outward. The outer wall of the reactor body is fitted with three concentric jacket sections running from top to bottom. Notably, the inner diameter of the reactor body ranges from 0.8 to 1.0 meters, and the height-to-diameter ratio of the reactor body is between 2.6 and 4.5:1. A long-shaft agitator is inserted into the reactor, with the agitator’s diameter being 0.4 to 0.6 times the diameter of the reactor body.