DEACIDIFICATION PROCESS AND APPARATUS THEREOF

摘要

A deacidification apparatus and a deacidification process using the apparatus. The deacidification apparatus comprises a deacidification furnace, an upper portion, a middle portion and a lower portion of the deacidification furnace respectively serving as an upper section of the furnace body, a middle section of the furnace body and a lower section of the furnace body. A gas-solid mixture gas inlet (1), a tail gas outlet (3) and a filter gas port (2) are arranged at the upper section of the furnace body; a product outlet (13) is arranged at the lower section of the furnace body; a filter (5) is installed inside the upper portion of the furnace. The gas-solid mixture gas inlet (1), the tail gas outlet (3) and the filter gas port (2) are in communication with the filter (5), and the filter gas port (2) is connected to a gas pulse device and a vacuuming device through a three-way connecting device. The tail gas outlet (3) is in communication with the atmosphere or the vacuuming device. An auxiliary heating system (9) is disposed in the middle section of the furnace body; an overheat vapor inlet (10) and a high-temperature air inlet (12) are arranged on the middle section of the furnace body. By means of the deacidification apparatus and the process, acids can by removed through suction filtration at a high temperature in the presence of an auxiliary medium, thus having advantages of low energy consumption and high efficiency.