Information from the National Intellectual Property Administration shows that Wudi Xinyue Chemical Group Co., Ltd. has applied for a patent titled "An Epichlorohydrin Waste Gas Purification and Treatment Equipment", with the publication number CN 119258786 A and the application date in October 2024.

The patent abstract shows that it is an improved epichlorohydrin saponification tower. Multiple motors are arranged on the outer wall of the first housing around the intake pipe. The output end of each motor is equipped with a rotating shaft, and one end of the rotating shaft is provided with a clamping block. Multiple docking seats are arranged on the outer wall of the second housing around the exhaust pipe. The inside of each docking seat is provided with a docking groove. With the uniform rotation of the positioning shaft, it can provide a blocking effect on the epichlorohydrin waste gas in the cavity. During this process, the lighting tube can provide an illumination effect on the waste gas in the cavity through the through-hole, which facilitates controlling the flow rate of the epichlorohydrin waste gas, preventing the flow rate of the epichlorohydrin waste gas from being too fast in the cavity, enabling the epichlorohydrin waste gas to be fully treated by light, and thus improving the treatment efficiency of the epichlorohydrin waste gas.