Pressure plate filter (PF)
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Catalog excerpts

Pressure plate filter (PF) - 1

Recovery of clear filtrates TRANSFORMING MATERIALS INTO VALUE

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TRANSFORMING MATERIALS INTO VALUE The company BHS-Sonthofen, headquartered in Sonthofen, Germany, is an owner-operated group of companies in the field of machine and plant engineering. We offer technical solutions in the field of mechanical process engineering, with a focus on mixing, crushing, recycling and filtration. With over 300 employees and a number of subsidiaries, BHS-Sonthofen has a global presence. Cake filtration BHS has specialized in cake filtration for more than 50 years. We supply a broad range of pressure and vacuum filters for both batch and continuous operation. We have...

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Pressure plate filter (PF) - 4

PRESSURE PLATE FILTER 4 BHS Pressure Plate Filter (PF) The Pressure Plate Filter is a batch-operated filter. The plateshaped filter elements are arranged horizontally as a plate stack inside a pressure vessel. Typical process steps are filtration, washing, drying and discharging. All these steps are carried out under pressure. The filter is used primarily for cake-forming solid-liquid separation of suspensions with a low solids content that are moderately or extremely difficult to filter. It is also suitable for adsorptive filtration (as a deep bed or precoat filter). The BHS Pressure Plate...

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High process versatility A variety of options are available for treating the filter cake, enabling the individual process requirements to be met. The cake can be washed in one or more stages. Air, nitrogen or other gases can be passed through the filter cake to achieve a greater degree of dewatering. If required, precoat filtration by means of filter aids is possible. For applications in the pharmaceutical, food and bioprocess industries, we make specially equipped, GMP-compliant filter plants incorporating CIP equipment if necessary. We are also ATEX certified. Vibration discharge The...

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Structure of a Pressure Plate Filter Filtrate outlet Vibration motor Drive head Vibration motor Static seal Hollow shaft Spring isolators Set of plates Pressure vessel Heel discharge Discharge valve Suspension feed Filter cake discharge Functional description Set of plates and cake formation Shaft seal The individual filter plates consist of slightly conical stainless steel plates. On the surface is a coarse-mesh backing screen that supports the actual filter cloth. The filter cake builds up on the filter cloth. The prevailing pressure differential causes the clear filtrate to flow into the...

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Typical process steps Cake formation Cake drying During the filtration cycle, the solid particles are deposited as a filter cake on the surface of the slightly conical plates due to the applied pressure differential. The filtrate is discharged through the backing screen, the plate hub and the hollow shaft (blue arrow). Mechanical cake drying is realized by blowing gas or steam through the filter cake. The exhaust gas flows through the hollow shaft and upwards through the filtrate pipe. Alternatively, the cake can be discharged as slurry. Cake washing Displacement washing or recirculation...

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PLATE FILTER SKID PACKAGES 8 BHS manufactures Pressure Plate Filters and corresponding skids for diverse applications. These are based on a range of standardized modules for skids from 0.33 m² to 45 m² filter area. BHS also makes individually engineered filter skids to customer specifications. The BHS plate filter skid consists of the following four main components: » Pressure Plate Filter » Piping with fittings and measuring instruments » Steel structure » PLC Controls The skid can be supplemented and expanded with further accessories. Process solution Besides the machinery itself, BHS...

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ACCESSORIES & VERSIONS 9 www.bhs-sonthofen.com Heel filtration device The heel filtration device enables the residual volume to be processed on completion of the filtration cycle by means of an internally filtering cylinder at the vessel cone. This ensures complete heel filtration with a minimum of compressed gas. Precoat or body feed In certain cases a precoat or body feed is required to help with filtration. They are used to suspend powdery filter aid. The precoat operates in batch mode, whereas the body feed runs continuously. BHS provides the precoat or body feed system including tanks,...

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Tests give certainty We perform initial tests with our pocket leaf filters. These tests can be performed quickly and easily at your location or in any of BHS locations worldwide. Basic data can thus be obtained about the filterability of a suspension and the general design of a production filter. For more extensive tests, even spanning several weeks, we can rent out pilot and lab filters for all BHS filter types. Filters made of different materials are also available. If necessary, the filters can be equipped to meet specific customer requirements. These filters can be used to examine...

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TECHNICAL DATA 11 www.bhs-sonthofen.com Performance data and dimensions Type Plate diameter Filter area/plate Active filter area Vessel diameter Process criteria Mode of operation Operating pressure Operating temperature Solids content (suspension) Cake thickness Particle size Filtration capacity – suspension Filtration capacity – dry solid Active filter area All specifications apply to the standard design. Technical data for customized designs may differ from the specified data. All technical data may change due to

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CRUSHING TECHNOLOGY RECYCLING TECHNOLOGY FILTRATION TECHNOLOGY 06.2017_801000022_EN, © 2017 BHS-Sonthofen GmbH – All rights reserved. MIXING TECHNOLOGY

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