Filter structure body and filter module for separating impurities from a raw fluid stream

A filter module for separating impurities from a raw gas stream containing impurities, comprising

• at least one three-dimensional filter structure body through which the raw gas stream can be conducted, and
• an outer frame for receiving the filter structure body between the raw gas-side opening and a clean gas-side opening,
• wherein the at least one three-dimensional filter structure body comprises a support structure and a filter sheet disposed thereon, which comprises an inflow surface and an outflow surface,
• wherein the support structure comprises a plurality of comb-like shaped segments, each with a base, from which prongs project jointly in a direction at a spacing from each other in the longitudinal direction of the base,
• wherein the plurality of comb-like shaped segments are arranged congruently parallel to one another and are connected by a plurality of discrete connecting elements connecting the comb-like shaped elements segments and attached to the comb-like shaped elements segments at peaks of the prongs of the comb-like shaped elements segments,
• wherein a laying direction of the filter sheet extends in the longitudinal direction of the base, and wherein inflow regions of the inflow surface are disposed on one side of the filter sheet and outflow regions of the outflow surface are disposed on the opposite side of the filter sheet, each of which extending along the prongs between the base and ends of the prongs remote from the base.