A filter diaphragm for a horizontal plate and frame-type filter, such as a tower press, including a sheet like body and at least on a filter plate-facing side thereof, a continuous seal bead. The seal bead includes an inner seal lip on a lateral inside of the seal bead and an outer seal lip surrounding the inner seal lip on a lateral outside of the seal bead. The outer seal lip is elevated from the inner seal lip in a vertical direction perpendicular to a general plane defined by the diaphragm.

A filter plate frame assembly with a filter plate frame and a subframe housed within the frame, such that the subframe can be removed from the frame without removing the frame from the filter press. In this way, consumable components can be provided in connection with the subframe, which can be easily removed from the filter press. This, in turn, makes replacement of worn components faster, as the whole frame does not need to be removed from the filter press. An associated horizontal filter press and a method of replacing worn components of such a filter press is also provided.

A filter plate frame assembly with a filter plate frame and a subframe housed within the frame, such that the subframe can be removed from the frame without removing the frame from the filter press. In this way, consumable components can be provided in connection with the subframe, which can be easily removed from the filter press. This, in turn, makes replacement of worn components faster, as the whole frame does not need to be removed from the filter press. An associated horizontal filter press and a method of replacing worn components of such a filter press is also provided.

A filter diaphragm for a filter plate assembly of a recessed plate-type filter, such as a filter press or a tower press. The diaphragm includes a sheet-like body having a flexible structure, and, at least on a side of the body, a plurality of distinct attachment studs to be inserted into corresponding distinct attachment holes of a respective filter plate for attaching the diaphragm to the filter plate. The attachment studs are arranged along a sealing region extending along a periphery of the filter diaphragm and extend in a direction perpendicular to the diaphragm body. The attachment studs are equipped with an opening extending through the filter diaphragm, between the opposing sides thereof. A diaphragm filter plate and -assembly, and filter are also concerned.

A plate for a filter press, a filter press, the use of such a filter press as well as a method of cleaning and sterilization of such a filter press. The plate for a filter press has a base body, consisting of a first material with a hardness H.sub.1 and having an outer circumferential surface, and a frame arranged on the outer circumferential surface, consisting of a second material with a hardness H.sub.2, where H.sub.2<H.sub.1, and wherein the frame has on at least one side surface at least one encircling seal protruding relative to the side surface.

The invention relates to a method for filtering a suspension in a filter device comprising a sequence of steps, including piping the suspension into the filter chamber between the filter cloths, directing the suspension through the filter cloths, discharging a liquid fraction of the suspension through the first duct and the second duct out of the filter chamber and through the first outlet of the first recess plate and the second outlet of the second recess plate as a filtrate, and piping a drying gas from the head piece into the filter chamber through the first duct and discharging the same through the second duct. The invention further relates to such a recess plate that is designed for packing a plurality of specimens of the recess plate into a pack between a stationary head piece and a moveable end piece of a filter device.

A high-efficiency filter press includes a filter plate for solid-liquid separation, a material pool for storing materials and transporting the materials to the filter plate, and a filtrate pool for storing filtrate flowing out of the filter plate, wherein the filter plate is provided with a feed hole, a first drain hole and a second drain hole, the material pool is in communication with the feed hole through a feed pipe, the first drain hole is in communication with the filtrate pool through a first drain pipe, the second drain hole is in communication with the filtrate pool through a second drain pipe. The filter press further includes a washing device which is configured to inject washing water into the first drain hole to allow the washing water to flow out from the second drain hole into the filtrate pool after flowing through the filter plate.

A high-efficiency filter press includes a filter plate for solid-liquid separation, a material pool for storing materials and transporting the materials to the filter plate, and a filtrate pool for storing filtrate flowing out of the filter plate, wherein the filter plate is provided with a feed hole, a first drain hole and a second drain hole, the material pool is in communication with the feed hole through a feed pipe, the first drain hole is in communication with the filtrate pool through a first drain pipe, the second drain hole is in communication with the filtrate pool through a second drain pipe. The filter press further includes a washing device which is configured to inject washing water into the first drain hole to allow the washing water to flow out from the second drain hole into the filtrate pool after flowing through the filter plate.

A high-efficiency filter press includes a filter plate for solid-liquid separation, a material pool for storing materials and transporting the materials to the filter plate, and a filtrate pool for storing filtrate flowing out of the filter plate, wherein the filter plate is provided with a feed hole, a first drain hole and a second drain hole, the material pool is in communication with the feed hole through a feed pipe, the first drain hole is in communication with the filtrate pool through a first drain pipe, the second drain hole is in communication with the filtrate pool through a second drain pipe. The filter press further includes a washing device which is configured to inject washing water into the first drain hole to allow the washing water to flow out from the second drain hole into the filtrate pool after flowing through the filter plate.

A high-efficiency filter press includes a filter plate for solid-liquid separation, a material pool for storing materials and transporting the materials to the filter plate, and a filtrate pool for storing filtrate flowing out of the filter plate, wherein the filter plate is provided with a feed hole, a first drain hole and a second drain hole, the material pool is in communication with the feed hole through a feed pipe, the first drain hole is in communication with the filtrate pool through a first drain pipe, the second drain hole is in communication with the filtrate pool through a second drain pipe. The filter press further includes a washing device which is configured to inject washing water into the first drain hole to allow the washing water to flow out from the second drain hole into the filtrate pool after flowing through the filter plate.