Blast Room Specificatons 2.doc
DOC document 45 KB Posted
- Attached to
- Sand Blasting Booth Equipment Package
- Solicitation number
- RFQ - 17D - 10012600000000000688
- Issued by
- Kennebec County, Maine
About this file
This is a specifications document issued by the Maine Department of Transportation for a sand blasting booth equipment package to be installed in a customer-supplied enclosure measuring 30 feet wide by 40 feet long by 13-15 feet high. The package includes a media recovery system with U-shaped partial recovery screw floor, bucket elevator, rotary drum media separator, media storage hopper, ASME-certified pressure vessel rated at 125 PSI, dust collection system with 25,000 CFM capacity, electrical control panels, blast hose assemblies, and operator safety equipment. The recovery system shall include minimum specifications such as two 9-inch diameter augers with 3 HP motors, a cross auger with 3 HP motor, chain drives with 30 rpm reducers, and hanger bearings with quick-release bushings. The bucket elevator requires 12-inch wide Dacron belting, cast iron buckets on 12-inch centers, and a 2 HP drive motor. The dust collector must be a cartridge-type system operating at 8 inches static pressure with a 60 HP ground-mounted blower and 48 Ultra-Web Oval II filters rated at 99.999 percent efficiency. Installation includes equipment erection, ductwork fabrication and installation within 25 feet, system testing and performance verification, and three days of training for a minimum of four blast personnel and two technicians.
Bidders must submit specification sheets, manufacturer brochures, and certify that they maintain service facilities in Maine staffed with trained technicians and stocked with repair parts for the equipment. Manufacturers must provide three complete parts manuals, three service manuals, and three operator manuals with each bid proposal. The Maine DOT specifies that bids will be evaluated based on price, warranty terms, manufacturers' performance data, delivery schedule, parts availability, and other deemed appropriate factors. All exceptions to specifications must be clearly listed as separate exceptions; any unlisted exceptions will be considered vendor compliance with all stated specifications. Shipping and delivery shall be included to MaineDOT Fleet Service at 105 Capitol Street, Augusta, Maine 04330. Manufacturers' standard warranty applies beginning from the in-service date, with warranty terms and conditions to be provided with the bid proposal. The Maine DOT reserves the right to reject any and all bids.
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| Solicitation_terms.doc | DOC document |
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Text version
Blast Room Enclosure
It is the purpose and intent of these specifications to describe a Blast Room Equipment package for a customer supplied enclosure designed for use with steel grit blasting media. Proposed enclosure shall be 30' Wide X 40' Long X 13 - 15' high. Components shall Included but not limited to; Recovery Floor Auger Modules, Bucket Elevator, Rotary Drum Media Separator, Media Storage Hopper, Electrical Control Panel, Reverse Pulse Jet Cleaned, Cartridge Dust Collector, Pressure Vessel (1), Blast Hose Assemblies, Baffled Inlet Plenums, Wall Mount Baffled Exhaust Plates, and Operator Safety Equipment.
Item 1 Room Enclosure
Supplied by ME D.O.T
Item 2 Media Recovery System
2.1 Shall be an U-Shape Partial Media Recovery Screw Floor, 30 Ft. wide x 34 1/2 Ft. long,
2.2 Recovery system shall utilize a minimum of (2) 9” Diameter long Augers on 5” Schedule 40 shaft with (2) 3 H.P C-face, TEFC Motor.
2.3 Recovery system shall utilize a minimum of (1) 9” Diameter cross Auger on 5” Schedule 40 shaft with (1) 3 H.P C-face, TEFC Motor.
2.4 Recovery system shall utilize a minimum of (#80 Chain Drives and 30 rpm reducers with all drive components and Hanger Bearings.
2.5 Augers shall be equipped with 3/8” flights on Two Thirds (2/3) Pitch.
2.6 Recovery system shall utilize a minimum (5) Hanger Bearings with (3) Quick Release (QR) Steel Bushings for easy maintenance repair.
2.7 Auger pans shall be of a minimum of 10 Ga. Steel Pans with removable ends for Maintenance.
2.8 Their shall be Adjustable Metering Plates on Long Auger Assemblies, Steel plate covering cross screw assembly.
2.9 Removable Steel Grating for floor shall be a minimum of 1-1/4” 500 Lb. Sq. Ft. capacity.
2.10 Bucket elevator recycle system shall be made form a minimum of 10Ga. steel housing with 20” rotary drum media air wash.
2.11 Elevator belting shall be a minimum of 12” wide x 3/16” Dacron.
2.12 Their shall be a minimum of 12” x 2-1/2” Cast Iron Buckets on 12” Centers.
2.13 Elevator shall have a top adjustable take up with 2 Hp drive motor and reducer.
2.14 Drum shall be a minimum of 11 ga. perforated steel with 3/16” holes. Drum shall have a trash hoses, flexible heavy duty PVC and ducting for dust removal.
2.15 Storage hopper shall be a minimum of 54 Cu. Ft. capacity, with dual outlets, freestanding, and shall include a rolling access ladder.
Item 3 Media Blasting
3.1 System shall have a minimum of (1) 1050 blast room pressure vessel assembly’s with two (2) outlets.
3.2 Vessel shall be ASME Certified , and rated at 125 Psi operating pressure and shall include the following items
a. Long Ventura blast Nozzle, 3/8” Di-Carb with 1” x 75 Ft. Blast Hose with Couplings.
b. Pneumatic Safe-Stop Remote Control, Dual Line with Abrasive grit cut-off switch.
c. OSHA Safety Interlock Solenoid for Main and Man Doors.
d. Automatic Sure-Flo Grit Valve with MG-78 Automatic Exhaust Valve.
e. Dual Sight Glasses, Pressure Regulator and 50 Micron air inlet Filter.
Item 4 Dust Collector
4.1 The duct collection system shall be a minimum of 25,000 CFM, cartridge dust collector, operating at 8” Static Pressure, Torit, Model HDFT4-48 or equivalent. System shall come complete with the following items.
a. 60 HP Ground-Mounted HDBI-330 Blower, Dirty Air Inlet Plenum, and Seal Kit.
b. Photohelic Controlled, Reverse Pulse Cleaning System.
c. Slide Gate and Drum Cover.
d. Compressed Air connection kit includes ball valve, pressure regulator, and filter.
e. 48 Ultra-Web Oval ® II filters, rated at 99.999 % Efficient on 0.2-2 Micron Particles, MERV 13 rating.
f. 165” high x 116” wide x 91” deep, 16,256 Sq. Ft Filter Media.
g. 2 ASHRAE Final Filter Packs each 2x4 pattern with Magnehelic gauge.
h. All ducting into and out of collector and ground mount clean air connection to fan by others.
Item 5 Operator Safety Equipment
5.1 One Nova 2000 Blast Hood Respirators, and 50 Blast Hood Outer Lenses & 50’ Air Hose
5.2 One ADP20 Ambient Breathing Air Pump
Item 6 Electrical Controls
6.1 NEMA-12 Electrical Controls 460/60/3, 4 wire motor controls for augers, bucket elevator, rotary drum and dust collector.
6.2 Remote Location Motor Disconnects with Safety Interlock Circuit and CO Monitor interface.
Item 7 Installation 7.1 Installation shall include all supplied blast room equipment and related hardware as follows.
a.
Installation shall include equipment erection and set-up.
b.
Fabrication and installation of ductwork required for ventilation of the blast room facility and reclaim equipment with 25 feet.
c.
Fabrication and installation of return air duct to after filter assembly.
d.
Installation shall include the testing and performance of the ventilation, blast systems.
e.
Installation shall include three days training for a minimum of 4 blast personnel and two tech’s.
Item 8 Warranty 8.1 Manufacture’s standard warranty will apply.
8.2 Terms and conditions of warranty must be provided with bid proposal.
8.3 Manufacture’s warranty will start with the in-service date.
Item 9 General 9.1 Three (3) complete parts manual shall be supplied.
9.2 Three (3) complete service manual shall be supplied.
9.3 Three (3) operator’s manual shall be supplied.
9.4 All pinch points shall be clearly marked.
9.5 Equipment must be fully inspected.
9.6 Be it known that these specifications are a minimum and that bids will be evaluated on based on price, warranty, manufacturers performance data, delivery schedule, parts availability and other items deemed appropriate.
9.7 Bidders are required to provide sufficient information with their bid such as manufacturer’s brochures, etc. and to certify that they have service facilities in Maine, staffed with trained service technicians and stocked with repair parts for the equipment which is bid. Failure to provide this information may cause the bid to be rejected. The Maine DOT reserves the right to reject any and all bids.
9.8 Bidders shall supply a specification sheet with their bid proposals.
9.9 Exceptions to specifications shall be listed on a separate paper and noted as exceptions and submitted with bid proposal. If exceptions are not listed as such it shall be considered that the vendor will comply with all specifications as listed.
9.10 All bid proposals will include shipping and delivery to MaineDOT Fleet Service, 105 Capitol St. Augusta Me. 04330 Rev/dlh09
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