A filter plate assembly for a horizontal plate and frame-type filter, such as a tower press, a filter plate and a vat liner

A filter plate assembly for a horizontal plate and frame -type filter, such as a tower press, comprising a filter plate having a rigid plate-like body with a frame side and a vat side,

• wherein the filter plate comprises, on the chamber side, a border having at least an inner lateral wall and an upper surface, the border being elevated for a distance at least from a portion of the filter plate delimited within the border, and
• wherein the border is an integral part of the filter plate,
• wherein a filtrate vat is formed by the filter plate, such that the inner lateral wall of the border forms a lateral wall of the filtrate vat, and a portion of the filter plate delimited by the border forms a bottom of the filtrate vat, and
• wherein the filter plate assembly further comprises a vat liner having a sheet-like body, the vat liner being nested within the filtrate vat such that the vat liner extends onto the upper surface of the border, such that the filter plate is separated from filtrate within the filtrate vat by the vat liner, when in use.

A vat liner for a filter plate assembly of a horizontal plate and frame -type filter, such as a tower press, the vat liner having a sheet -like body, comprising:

• a planar bottom portion;
• a border portion;
• an inner lateral wall portion extending vertically from the planar bottom portion;
• and
• an upper surface portion extending outwardly from the lateral wall portion in direction transverse thereto.