Qualifying_Statement_for_Aluminum_Dust_Collection_System.pdf

Qualifying Statement for Aluminum Dust Collection System

Brand Name Sole Source – Aluminum Dust Collection System; Sly Model: STJ‐68‐10 Dust Collector with listed options.

(Qty. 1) Sly Model STJ‐68‐10

720 sq. ft. filter area, 236 FPM interstitial velocity, 16 oz. singed polyester filter media, static dissipative media bag with NFPA grounding straps, 4.2:1 air/cloth ratio, and forty‐eight 5.75” diameter by 10’ length top removal/snap band bags. 4’‐0” inside X 5’‐4” inside X 25’‐1” overall height. System must be capable of operating with 90 psi air supply. Dust collector must be fabricated as follows: Clean air plenum ‐ 10 gauge carbon steel, pulse pipes – schedule 40 carbon steel & painted, tubesheet 3/16” thick carbon steel, dusty air plenum ‐ 10 gauge carbon steel, hopper ‐ 10 gauge carbon steel, stiffeners ‐ structural channel carbon steel, and gasket ‐ prestite. Collector internal carbon surfaces are to be treated with SSPC‐SP3 preparation and one prime coat of Mobile Silicone Alkyd, 1‐2 mils DFT. Color:

Gray Collector external carbon steel surfaces to be treated with SSPC‐SP3 preparation, one prime coat of Mobile Silicone Alkyd, 1‐2 mils DFT and one coat Mobile Acrylic Enamel, 1‐2 mils DFT. Color: OSHA Blue Supports to be treated with SSPC‐SP3 preparation, one prime coat of Mobile Silicone Alkyd, 1‐2 mils DFT and one coat Mobile Acrylic Enamel, 1‐2 mils DFT. Color: OSHA Blue. Access platform to be treated with SSPC‐SP3 preparation, one prime coat of Mobile Silicone Alkyd, 1‐2 mils DFT and one coat Mobile Acrylic Enamel, 1‐2 mils DFT. Handrails and ladder Color: Safety Yellow. Grating: Black.

Features to be included:

Hatch top all welded clean air plenum for top bag removal.

- Hinged roof doors with black neoprene gaskets.

- One (1) 12” diameter flanged clean gas exhaust.

All welded filter housing.

External ground lugs for flanged and housing (with gaskets) connections provided with interconnecting cables.

36" x 36" explosion relief vent of 304 SS construction with silicone seal.

- Reinforced filter housing and vent mounting frames. P-red design is based on two-thirds of the ultimate strength of the metal per NFPA-68-13, 6.3.1.1 Vent is to be sized in accordance with NFPA-68-2013 with Kst=203 bar·m/s and Pmax=10.2 bar.

- Isolation of the inlet duct of the dust collector will be provided by MCAAP.

60 degree all welded pyramidal hopper.

- 14" diameter flanged and baffled diffuser inlet.

- 8" x 8" product discharge flange drilled to mate Smoot NFPA compliant valve described below.

- Access port with black neoprene gasket.

Factory installed compressed air header assembly/pulse cleaning system:

- Compressed air manifold of carbon steel, schedule 40 pipe.

- (Qty. 6) 1” diameter removable air pipes with tool-less Morris clamps.

- Goyen solenoid valves in NEMA 7/9 enclosure.

- Impolene tubing.

- Goyen diaphragm valves.

Bag cleaning control includes Sly Model MP-404 solid-state timer (1/60/120 VAC) in a NEMA 7/9 enclosure for continuous adjustable timed sequential control of the pulse-cleaning operation.

Control panel is factory mounted to the collector and wired to the solenoid valves.

(Qty. 48) galvanized steel 5-5/8 inch diameter top removal cages with glass reinforced nylon venturis. Cages are constructed of 11 gauge wire with (12) vertical wires and horizontal rings with eight inch spacing. Bail handle is provided for ease of cage removal.

(Qty. 2) 1/8" NPT couplings for differential pressure connection.

Differential pressure gauge, complete with bracket, fittings and 40 ft. of Impolene tubing provided.

Water tight construction. All product contact interior welds are continuous and ground smooth to

120 grit. Internal product contact corners are filleted. External welds are continuous and weld spatter is removed.

The collector is completely assembled including the pulse cleaning system. Bags, cages, supports, walkways and hoppers are shipped loose. Prestite gasket is used for shop connected housing and is provided loose for field connections, color: Gray.

1 - Structural support designed for 90 MPH wind load (per ASCE 7-05), constructed of carbon steel to allow 5 feet clearance below hopper discharge flange.

1 - Access platform at solenoid/pulse valve level and top perimeter hand railing around collector and caged access ladder with safety chain. Include OSHA self-closing safety gate for ladder interface with access, powder coated safety yellow.

1 - Smoot FT-9 Type 1, cast iron rotary valve with a 1/2 HP, TEFC motor and 15 RPM chain drive package for 3/60/230/460 VAC operation. Includes 8-vane open end rotor with relieved tips and finger guard. Construction to comply with NFPA-69 deflagration isolation only.

- For deflagration isolation per NFPA-69, the rotary valve will be supplied with 8-vane beveled edge rotors with initial nominal clearances of 0.005" and not to exceed 0.006" measured from rotor tip to housing bore and rotor end to head plate.

- Per NFPA-69, an interlock will be required to stop the rotary valve in the event of an explosion to prevent discharge of burning material into the bin or drum below the rotary valve.

This instrumentation is provided by MCAAP.

1 – Aerovent Exhaust Fan, Size 911, Model MHA, Arrangement No. 9F. CWUB

Rotation/Discharge

- Fan to handle: 3,000 ACFM at an estimated 15” static pressure, 2,887 RPM, 11.55 BHP at

735 ft. above sea level.

- Accessories included: V-Belt drive with guard, AMCA “A” spark-proof construction, Shaft and bearing guard, Flanged inlet, Flanged outlet, Drain & plug, Clean out door, Bearing temp sensors, and 15 HP, 3500 rpm, TEFC Exp.Proof Class 1, Div. 1, Group D & Class 2, Div. 1, Groups E, F, & G motor for 3/60/208-230-460 volts.

Approval drawing(s) is/are required and shall be furnished within one week after award. 3D models requested, can be in native Solidworks format, IGES, and/or STEP within two weeks after award.

JMMC‐DEE (MCAAP Engineering Support Division) will validate and verify equipment before award is granted.

Qualifying statement was prepared by: Randy Day (918‐420‐6822) on 14 NOV 2016.