HI-Bar Filters

Solquist's™ impressive disc and drum filter technologies can be further improved by the use of Hi-Bar Filtration.




Hi-Bar Filtration is an innovative and continuously working pressure filtration process which places a drum or disc filter inside an ASME code pressure vessel. High pressure is added at levels up to 90 psi resulting in the following benefits:

  • Extremely high throughput per ft.2 of filter area
  • Low residual moisture content
  • Excellent cake washing
  • Improved filtrate clarity
  • Gentle product handling
The Solquist ™ Hi-Bar Filter is available in two different configurations:

Horizontal Pressure Vessels

Large units that are used for filtering, washing and dewatering of bulk materials with high throughput rates.

Vertical Pressure Vessels

Small units that are used for sophisticated separation tasks, like washing and drying of valuable products in the chemical industry, the pharmaceutical industry, the food industry, etc.




Hi-Bar Filtration offer two process options:

  • Compressed gas filtration with air or inert gas
  • Steam pressure filtration with pure steam for cake washing and dewatering

Solquist™ has a mobile filter for pilot tests and scale-up trials, Bench scale testing and scale-up equipment are also available.



Design



The design of the Hi-Bar Filter is based on proven and furable technologies, such as disc or drum filters. These units are installed inside a pressure vessel filled with compressed air. The filter cake is discharged out of the vessel by a sluice. Both versions of the Hi-Bar Filtration process are characterized by the following features:
  • Continuous pressure filtration process with disc or drum fiters
  • horizontal pressure vessel for large units (man-sized) with manhole for mainenance work
  • Vertical pressure vessel for small filter units (Oster filter)
  • Cake discharge from the filter cloth by blowing back of compressed air which also serves as air supply for the filtration process
  • Fully automatic operation


Applications:

Chemicals
  • White pigments
  • Color pigments
  • Precipitated crystals
  • Salts
  • Gypsum
Food
  • Starches
  • Wheat
  • Corn
  • Potato
  • Tapioca
  • Fruit Juice
  • Dextrose
  • Gluten
Minerals
  • Coal slurries
  • Iron ore
  • Copper concentrate
  • Lead concentrate
  • Zinc concentrate
  • Red mud (Bauzite residue)
  • Magnesium carbonate
Materials of Construction
  • Stainless Steel
  • Hastelloy C-275 or B
  • Other exotic metals




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