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MAIN TANK & COLLECTING FLUME – Main tank - 1/4” (sides, ends, overflow launder & feed box) and 3/8” (bottom plate) welded plate steel construction – Integral feed box with 1/4” AR curved liner and nominal 2’ x 6’ feed opening – 56’ of adjustable weir boards – Integral overflow launder with dual discharge outlets – Ladder rungs located near the feed end of the tank for internal tank access – Self-support tank design with external stiffeners only - no internal stiffeners – Three-cell collecting flume - 3/16” welded plate construction (unlined)
WALKWAY & MECHANISM SUPPORT – 24” wide diamond deck walkway across the feed end and down the center of the tank – 1-1/2” O.D. posts, top and intermediate handrails – 4” toeboards – Removable/hinged door sections at each station – Walkway support structure also houses and supports the electric/hydraulic operating mechanism
OPERATING MECHANISM – 3 HP electric/hydraulic power pack with nominal 3 micron filtration – 750-psi (adjustable to 1,000-psi) hydraulic system – 10-gal. hydraulic reservoir – Accumulator – Nine (9) settling stations each including: * One (1) 24-volt DC adjustable height sensing paddle assembly * Three (3) discharge valves with adjustable down rods operated by hydraulic cylinders * Hydraulic manifold block with cartridge valves and 24-volt DC coils * Individual ball and check valves * Stainless steel hydraulic plumbing with o-ring face seal fittings Operating Mechanism continued on next page
OPERATING MECHANISM – All stations prewired to a bridge mounted NEMA 4 junction box which also houses the PLC (programmable logic controller) – All wiring in the form of “plug and receptacle” type cords – Controller: Standard Dell PC HMI (human-machineinterface) including CPU, monitor, keyboard, optical mouse and WindowsTM based programming. An optional industrial PC HMI with touch screen housed in a NEMA 4 enclosure is available for outdoor installations Note: See Model #7108-32 specification sheet for additional information
MODEL #5044-32T DEWATERING SCREW MAIN TANK – 1/4” (sides & bottom) and 3/8” (rear end plate) welded plate steel construction – Curved bottom with integral rising current manifold (4” dia. inlets) – Large undisturbed pool area – 26’ of adjustable weir boards – 1-1/2” chase water line connection – Integral overflow flume
SPIRAL ASSEMBLY – Spiral pipe - heavy wall 14” dia. – Double pitch, solid flight spiral (one right hand, one left hand) – Standard AR steel inner wear shoes – Standard urethane outer wear shoes (cast Ni-Hard outer wear shoes are optional) – Greaseable, externally mounted Dodge Imperial E tail end flange bearing – Greaseable Dodge Type E pillow block head end bearing – Lower end seal - chrome plated stainless steel wear sleeve, water tight bellows type rubber seal and secondary grease seal
DRIVE ASSEMBLY (one drive assembly per spiral) – High efficiency v-belt drive assembly – 20 HP TEFC motor – Dodge TA-II double reduction shaft mount reducer
DISCHARGE CHUTES – Independent/reversible tapered discharge chutes set at 45o angle to grade
RISING CURRENT ACCESSORIES – Externally mounted manifold with 4” butterfly flow control valve, 4” swing check valve, 0-100 psi pressure gauge and 1” gate valve and plumbing to the chase water connection Note: See Model #5044-32T specification sheet for additional information
PLANT STRUCTURAL SUPPORT – 12” wide flange skid runners – Classifying Tank - 8” wide flange structural columns with horizontal and vertical bracing – Dewatering Screw - 6” wide flange structural columns with horizontal and vertical bracing – Ladder access to the bridge of the classifying tank (stair access is optional)
PHYSICAL/OPERATING CHARACTERISTICS – Feed Material Size - minus 3/8” – Capacity - TPH dependent on water requirements for proper feed material dilution and desired material retention – Water Requirements - up to 3,500 gpm – Operational Dimensions - 47’1” L x 16’9” W x 25’2” H – Loads Approx. Dead Load = 73,200 lbs. Approx. Live Load = 202,450 lbs.