Filtering system for methanol containing coal tar

The utility model relates to the technical field of filtration, and discloses a coal tar-containing methanol filtration system, which comprises a filtration unit and a soaking and washing unit, the filtration unit comprises at least one filter, and each filter is communicated with a methanol discharge pipe and a coal tar-containing methanol feed pipe and is used for filtering impurity particles in coal tar-containing methanol; the soaking and washing unit is used for soaking and washing coal tar attached in the filters and comprises a soaking and washing liquid feeding part, a purging gas feeding part, a backwashing liquid feeding part and a waste gas discharging part which are communicated with each filter. The front and back pressure difference of the filter is reduced, and stable operation of the device is guaranteed. 本实用新型涉及过滤技术领域，公开了一种含煤焦油甲醇的过滤系统，包括过滤单元和泡洗单元，其中，过滤单元包括至少一个过滤器，每个所述过滤器连通甲醇出料管和含煤焦油甲醇进料管，用于过滤含煤焦油甲醇中的杂质颗粒；泡洗单元用于对附着在所述过滤器中的煤焦油进行泡洗脱除，所述泡洗单元包括与每个所述过滤器连通的泡洗液进料件、吹扫气进料件、反冲洗液进料件和废气出料件。本实用新型具有降低过滤器前后压