10/8/2012. BHS History. BHS History. BHS-Filtration Inc. Thin-Cake Solid-Liquid Separation, Cake Washing & Drying Technologies

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1 OVERVIEW PRESENTATION Rubber Belt Filters Barry A. Perlmutter, President & Managing Director BHS History 1563 Founded as a mining company 1600 Iron foundry 1888 Production of mixing & crushing machines 1932 Production of gear units 1953 Production of filtration machinery 1975 Production of recycling plants BHS History 1996 BHS-Sonthofen GmbH 2000, Charlotte, NC 2001 BHS-Tianjin, China 2002 Implementation of SAP Worldwide 2007 BHS-India (Hyderabad) 2010 BHS-Mixers Inc., Charlotte, NC 2011 Expansions and Technology Upgrades Pressure & Vacuum Filtration Batch & Continuous Operation High Solids to Clarification Maximum Washing Efficiency Pre-Drying Full Containment with Automatic Discharge of Wet Cake, Dry Cake or Slurry 1

2 Filtration & Process Laboratories Pilot Rental Filters for On-site Testing Process & Project Engineering PLC Control Systems & Turnkey Skids Start-Up & Mechanical Parts & Services Candle Filter: Clarification Pressure Plate Filter: Clarification Vacuum Belt Filter: High Solids, Continuous Rotary Pressure Filter: High Solids, Continuous Autopress Filter: Pharma, Full Containment BHS Worldwide Solid-Liquid Separation, Cake Washing & Drying Technologies More than 1600 filters world wide since 1953 >550 Rotary Pressure Filters >450 Vacuum Belt Filters >275 Pressure Plate and Candle Filters ~30 Autopress Applications for the BHS Filters: chemical pharmaceutical, energy / environmental BHS Vacuum Belt Filter Technologies: Continuous-Indexing & Rubber Belt Filter Continuous-Indexing - Continuous slurry feed - Indexing belt movement - Up to 45 m² filter area - Electric or pneumatic drive - Dewatering, cake washing, steaming, and pressing - For small to medium size throughputs - No sealing media (water, air) Rubber Belt Filter - Continuous slurry feed - Continuous belt movement - Up to 200 m² filter area - Electric drive - Dewatering, cake washing, and steaming - Higher throughput per m² for high efficient filters - No water or air required for belt support 2

3 Innovation 90 m² The Newest Expansion of the BHS Technologies to Meet the Needs of the FGD Industry 9 90 m² 67 m² 3

58 m² Continuous vacuum filtration Efficient washing of the cake High throughputs

materials Components: slurry feed, cake washing (single and multi-stage), steaming

4 58 m² Continuous vacuum filtration Efficient washing of the cake High throughputs Low consumption of sealing water No sliding water required Rubber belt width from 1.2 m to 4.2 m Filter area up to 200 m² 14 Various types of filter media Choice of rubber belt materials Components: slurry feed, cake washing (single and multi-stage), steaming of the filter cake Continuous cleaning of the filter media Efficient dewatering of the filter cake by vacuum (600 mbar differential pressure) Feed System

Cake Discharge Roller Cloth Wash Box Cake Discharge Roller Cloth Wash Box 17 18

system Even belt support over the whole filter area Robust design of the

movement of the belt Rubber belt supplied by an established manufacturer Dry

5 Cake Discharge Roller Cloth Wash Box Cake Discharge Roller Cloth Wash Box Roller System for Rubber Belt Support Rubber belt is positioned on roller system Even belt support over the whole filter area Robust design of the rollers in stainless steel Precise alignment of the roller system for linear movement of the belt Rubber belt supplied by an established manufacturer Dry support of the rubber belt by roller system Standard operation of seal belts with water

Advantages of the Roller System Dry support of the rubber belt by roller system Standard operation of seal belts with water

motor sizes No risk of damaging the rubber belt by uneven distribution of water or air Minimum wear High operational

Standard operation of seal belts with water Maintenance Vacuum box in polyethylene or stainless steel liners Operation of the

6 Advantages of the Roller System Dry support of the rubber belt by roller system Standard operation of seal belts with water No water or air required for belt support Lower drive power required compared to water or air support resulting in smaller motor sizes No risk of damaging the rubber belt by uneven distribution of water or air Minimum wear High operational reliability Low maintenance requirements Operation of Seal Belts Dry support of the rubber belt by roller system Standard operation of seal belts with water Maintenance Vacuum box in polyethylene or stainless steel liners Operation of the seal belts with water Seal Water: l/h per meter of active filter length Low maintenance requirements Easy access of sealing system

Guiding and alignment of filter cloth Typical Sizes Automated alignment of the filter cloth Tensioning of the filter cloth is done by weight roller active filter width active filter length max.

7 Guiding and alignment of filter cloth Typical Sizes Automated alignment of the filter cloth Tensioning of the filter cloth is done by weight roller active filter width active filter length max. filter area water for seal belts motor size size [mm] [m] [m²] [m³/h] [kw] BFR up to 7.5 BFR up to 15 BFR up to 22 BFR up to 30 BFR up to 90 BFR > 90 kw Summary of BHS Turnkey Projects Description of Installation Scope of Engineering Process Design BHS Belt Filter Vacuum Package Filtrate Package Gypsum Hydrocyclones Wastewater Cyclone Fines Recovery & Candle Filters PLC Controls Commissioning Performance Guarantee References & Plant Visits Monroe Road Charlotte, North Carolina Tel: ; Fax: Website: 7

PF Pressure Plate Filter. Recovery of clear filtrates

PF Pressure Plate Filter. Recovery of clear filtrates PF Pressure Plate Filter Recovery of clear filtrates Administrative building of BHS-Sonthofen The company BHS-Sonthofen, headquartered in Sonthofen, Germany, is an owner-operated group of companies in