Sandwell's Pulping and Fiberline group provides engineering services in
the following areas:
Mill Wide -
new fiberlines
- capacity reviews
- facility expansion
- modernization
- debottlenecking
- water/effluent reduction programs
- energy consumption reduction program
Kraft Pulping - continuous digesters
- batch digesters
- sawdust digesters
- polysulphide
- anthraquinone
- digester debottlenecking
- pulping technology reviews
- pulping technology conversions
(Lo-Solids, ITC, Superbatch)
- troubleshooting
- chip bin replacements
- blow tanks
Mechanical Pulping - chip washing
- chip pre-treatment (thermal, chemical)
- refining
- heat recovery
- plant audit
Washing - brown stock washing evaluations
- atmospheric diffusion washers
- pressure diffusion washers
- displacement presses
- wash presses
- pressure washers
- belt washers
- vacuum drum filters
- troubleshooting
Screening/Cleaning - slotted screens
- hole screens
- series screening systems
- debris removal systems
- grit removal systems
- centrifugal cleaning systems
Oxygen Delignification - high consistency
- medium consistency
- single stage versus two stage
- mini oxygen delignification
- post oxygen washing evaluations
- liquor management tanks and strategy
- troubleshooting
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Kraft Pulp Bleaching
- new towers
- tower conversions
- washers
- ECF
- TCF
- medium consistency Do stage
- ozone
- acid soak stage
- peroxide
- papricycle stage
- splitting bleach plants
- troubleshooting
Mechanical Pulp Bleaching
- bleaching towers
- peroxide
- hydrosulphite
- medium and high consistency bleaching
- one- and two-stage bleaching
- pulp neutralization
Chemical Plants
- chlorine dioxide plants
- chemical storage facilities
- spill collection
Recausticizing
- stacked causticizers
- pressure filters
- pre-coat filters
- green liquor surge tanks
- clarifiers
- lime mud recycle
- autocausticizing
- polysulfide systems
- green liquor filters
- storage tanks
Kilns
- mud conveyors
- hot end and burner upgrades
- coolers
- de-dusting systems
- hot lime silos
- lime mud dryer
Noxious Gases/Substances
- HVLC and LVHC NCG systems
- incineration systems
- turpentine systems
- foul condensate collection and stripping systems
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