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BHS-Sonthofen Inc. • 14300 South Lakes Drive, Charlotte, North Carolina 28273-6794 • Phone: 704-845-1190 • Fax: 704-845-1902

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BHS Candle Filters

| Description | Animation | Pilot Test Filter | Related Articles |

Image

General Description

The BHS Candle Filter provides for thin-cake batch pressure filtration, cake washing, drying, reslurry and automatic cake discharge as well as heel filtration in a pressure vessel. Cake can be discharged as a dry cake, wet cake or a concentrated slurry. Units are available from 0.17 m² up to over 200 m² of filter area per vessel. Candle Filters are installed for clarification and recovery applications from liquids with low solids content ranging from 5% to PPM levels.

The BHS filter candles are designed for high liquid flow and low pressure drop. Cake discharge is performed by distribution of gas causing the gentle expansion of the filter sock. Materials of construction are stainless steels, alloys and plastics. Vessels can also be lined with EPDM, Halor, PTFE and others. The filter media is synthetic such as woven polypropylene, PTFE, Nylon, Polyester, and others. These media provide a clean removal efficiency as low as 0.5 microns. As the cake builds up, removal efficiencies improve to less than 0.5 microns. Filter aid can be used with the candle filter as a precoat and/or body feed which is beneficial sticky products or difficult filtrations.

Animation


BHS Candle Filters

  • Filter
  • Complete Process
  • Filtration
  • Dewatering
  • Cake Discharge

PILOT TEST FILTERS

Pilot Filter CF12-003

  • Active Filter Area: 1.0m²

  • Dimensions (LxWxH): 4.5ft x 3.5ft x 8.5ft

  • Maximum Operating Pressure: 10 barg (145psi)

  • Material of Construction: Stainless Steel

Download Data Sheet

LKF Pilot Filter

  • Active Filter Area: 0.17m²

  • Dimensions (LxWxH): 5ft x 3ft x 5ft

  • Maximum Operating Pressure: 6 barg (87psi)

  • Material of Construction: Stainless Steel

Download Data Sheet

Articles

Clarification of API Slurries and Recovery of Solids

“Reprint from “Pharmaceutical Engineering” , Jan/Feb 2007, The Official Magazine of the ISPE, International Society of Pharmaceutical Engineers.

Thin-Cake Filtration Technologies for Removing Activated Carbon, Catalysts and Other Trace Solids From Active Pharmaceutical Ingredient (API) Slurries

Selecting Thin-Cake Candle Filter Technology for Amine Acid Gas Scrubbing Systems

Replacing Filter Presses and Manual Plate Filters for Removing Trace Solids from Chemical Slurries with Thin-Cake Candle Filter Technology

Solid-Liquid Separation Technology for Removing Contaminant Fines From Water Scrubbing, Clarifier Effluents and Grey Water

Pharmaceutical Product Recovery Using BHS Concentrating Candle Filters Downstream of Centrifuges

New Approaches for Removing Catalyst Fines From Chemical and Pharmaceutical Slurries

Process Scale-Up from Demonstration Batch Filtration to Commercial Continuous Filtration

Removing salts and contaminants in glycol regeneration

Framework for Selecting Solid-Liquid Filtration Technologies for Particle Fines Removal

Combination Concentrating Candle Filters and Pressure Plate Filters for Removing Divalent Salts and Contaminants from Monoethylene Glycol Reclamation Units

Combination Concentrating Candle Filter and Pressure Plate Filter Skid System

Framework for selecting thin-cake candle filter technology for removing solid contaminant fines from recirculating gas scrubbing fluids

Filtration, Cake Washing & Drying: Lab Testing to Pilot Testing to Project Installation and Performance Guarantees

BHS Website Solid-Liquid Filtration Trends for Particle Fines Removal in Manufacturing Environments

Framework For Thin-Cake Candle Filter Technology For Removing Solid Contaminant Fines From Gas Scrubbing Liquids

Selecting Thin-Cake Candle Filter Technology For Removing Catalyst Fines

Quick Help

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Applications

  • Specialty Chemicals
  • Catalyst Recovery
  • Activated Carbon Removal
  • Amine & Glycol Filtration
  • Petrochemical
  • Pharmaceutical
  • Process & Waste Water

Special Designs

  • Slurry concentrating design
  • Dry cake discharge
  • GMP
  • Explosion Proof
  • Modular design
  • Turnkey packages
  • Pulse drying
  • Flexible alloy and polymer materials of construction
  • Ground and polished surfaces
  • Heel filtration device
  • Clean in place (CIP)
  • Precoat and body feed systems
  • Tube sheet design
  • Activated carbon filter for adsorption
  • Jacketed vessel

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