Three-dimensional balanced electric field decomposition tank and coal pre-desulfurization process in an acid-base-free medium

The invention discloses a three-dimensional balanced electric field decomposition tank and a pre-desulphurization process of coals in the absence of acid-alkali medium. According to the three-dimensional balanced electric field decomposition tank, two comb-shaped electrode plates are arranged in the decomposition tank in a balanced manner, and a conventional planar electric field is three-dimensional, so as to ensure that the molecule at any point in the decomposition tank can be ionized by constant force and greatly improve the decomposition efficiency. The invention further provides a set of process for coals to perform desulphurization by utilizing the three-dimensional balanced electric field decomposition tank in the absence of acid-alkali medium, so that pyritic sulfur can realize decomposition / aggregation in a neutral medium so as to achieve the purpose of polarization desulfurization, the desulfurization efficiency is high, the pollution is avoided, the sulfur aggregated on the electrode plates can further be recycled and processed into by-products. The three-dimensional balanced electric field decomposition tank and the three-dimensional balanced electric field pre-desulphurization process can be used for coal desulphurization and can further be applied to other electrochemical industry fields.