The invention shows an apparatus for recycling bituminous material bodies by melting, in particular for recycling bituminous composite material bodies comprising a composite material and a bituminous material, in particular roofing materials, in particular in the form of bituminous covering layers of roofing sheets, the apparatus including: a vessel having a vessel wall surrounding an interior space of the vessel extending along a vertical axis of the vessel for receiving the bituminous material bodies, a bottom plate and a compression plate extending transverse to the vertical axis wherein at least the compression plate has a number of through flow orifices adapted to allow a through flow of molten bituminous material, wherein the plates are movable along the vertical axis such that in a first operating state the compression plate is in a middle position for forming a melting space of larger size between the compression plate and the bottom plate for melting bituminous material in the melting space wherein the bottom plate is in a melting position, in a second operating state the compression plate is in a lower position for forming a compression space of minor size between the compression plate and the bottom plate for compressing solid residues and/or solid composite material in the compression space, and wherein
molten bituminous material is retained in a storing space above the compression plate for storing and/or discharging bituminous material, wherein the bottom plate is in a compression position, wherein the compression plate is movable from the middle position to the lower position.

A vacuum filter press system may comprise: a frame; a liquid injection system for controllably injecting liquid directly into each of a multiplicity of chambers; a plurality of filter plates configured to form a stack of parallel plates, each of the filter plates being movably attached to the frame and configured to form the multiplicity of chambers, each of the chambers being formed by adjacent filter plates, each of the chambers being lined by filter cloths, wherein the plurality of filter plates, the multiplicity of chambers and the filter cloths are configured to allow water vapor to escape from the chambers while retaining solids from the liquid to form a filter cake; and a vacuum pump connected to the multiplicity of chambers. Furthermore, wherein each filter plate has spacers attached to both sides, for enlarging the width, and hence capacity of the filter chambers.

The invention shows an apparatus for recycling bituminous material bodies by melting, in particular for recycling bituminous composite material bodies comprising a composite material and a bituminous material, in particular roofing materials, in particular in the form of bituminous covering layers of roofing sheets, the apparatus including: a vessel having a vessel wall surrounding an interior space of the vessel extending along a vertical axis of the vessel for receiving the bituminous material bodies, a bottom plate and a compression plate extending transverse to the vertical axis wherein at least the compression plate has a number of through flow orifices adapted to allow a through flow of molten bituminous material, wherein the plates are movable along the vertical axis such that in a first operating state the compression plate is in a middle position for forming a melting space of larger size between the compression plate and the bottom plate for melting bituminous material in the melting space wherein the bottom plate is in a melting position, in a second operating state the compression plate is in a lower position for forming a compression space of minor size between the compression plate and the bottom plate for compressing solid residues and/or solid composite material in the compression space, and
wherein
molten bituminous material is retained in a storing space above the compression plate for storing and/or discharging bituminous material, wherein the bottom plate is in a compression position, wherein the compression plate is movable from the middle position to the lower position.

An assembly comprising a filter plate for filter press and at least one attachment part, wherein the filter plate has a filter chamber boundary surface, by means of which a filter chamber to be formed in the filter press can be bounded. At least one channel for a fluidic connection to the filter chamber boundary surface is formed in the filter plate, and the attachment part is detachably fastened to the filter plate at the channel by means of at least one detachable ball-type snap-in connection. The ball-type snap-in connection comprises at least one ball pin and at least one coupling. An assembly comprising such a filter plate for a filter press and at least one attachment part, in which the attachment part is detachably fastened to the filter plate by means of at least one ball-type snap-in connection and has an opening which is arranged in the channel.

A filter grid including a plate-like grid body having a first side and an opposing second side. The grid body further includes a plurality of apertures extending between the first side and the second side, thereby providing fluid communication between the first side and the second side through the grid body. Each of the plurality of apertures define an aperture area and an aperture circumference, such that a ratio of the aperture area in millimetres squared to the aperture circumference in millimetres is above 1.3, and the plurality of apertures occupy at least 35% of a total area of the first side. A filtrate vat assembly, a filter plate assembly and filter press are designed using the filter grid.

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 subframe for a filter plate frame assembly having a filter plate frame and a filter plate subframe slidably receivable therein. The subframe comprises separate periphery segments attached to each other so as to form a continuous, generally rectangular periphery region with flank sides and end sides. The flank sides have a linear density lower than that of the end sides, and the end sides have a bending stiffness higher than that of the end flank, while either or both of the first end side and the second end side are provided with a reinforcement bar for increasing the bending stiffness said end sides. A supporting surface is provided on a first planar side of periphery segments forming the flank sides the supporting surface.

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.

An outlet piece assembly for a horizontal plate and frame-type filter, such as tower press. The disclosure is based on the idea of providing the outlet piece assembly as having a base removably attachable to a filter press (e.g., to the filter plate or plate frame thereof), and a lid removably fixed to the base, such that an internal conduit of the outlet piece assembly running between a vat end and a discharge end is formed between the base and the lid. This enables a part of an associated filtrate vat component, such as the vat liner, to be received between the base and the lid, thereby ensuring secure sealing between these components.