This spec was part of the Des Plaines, IL River WRF project that bid Feb 26, 2015.
SECTION 14550D
DETAIL SHAFTLESS SCREW CONVEYORS SPECIFICATION CAKE SOLIDS CONVEYOR NO. 6
PART 1 GENERAL
1.1 SECTION INCLUDES:
A. Shaftless Screw Conveyors:
1. Cake Solids Conveyor No. 6: M-8-4-6.
B. Major components included, but not limited to:
1. Spiral flighting.
2. Troughs and Liners.
3. Chutes.
4. Covers.
5. End Shaft.
6. Motor Reducer.
7. Mounting and Support Structure.
8. Electrical Controls.
9. Safety Accessories.
1.2 SYSTEM DESCRIPTION
A. See General Shaftless Screw Conveyor Specification Section 14550, SHAFTLESS SCREW CONVEYORS - GENERAL.
1.3 REFERENCES
A. See General Shaftless Screw Conveyor Specification Section 14550, SHAFTLESS SCREW CONVEYORS - GENERAL.
1.4 DESIGN REQUIREMENTS
A. General Requirements:
1. Design to collect dewatered sludge cake from Cake Solids Conveyor No. 5 and convey to the Feed Storage Silo as shown on the Drawings.
2. Capacity per conveyor, (cu ft/hr): 666.
3. Capacity per conveyor, (lbs/hr): 40,000.
4. Material Density, (lbs/cu ft): 60.
5. Maximum filling factor for each conveyor at maximum loading: 5030%.
6. Minimum flight outside screw diameter, inches: 1612.4" horizontal;.
6.7. Minimum pitch, inches: 11.46" vertical.
7.8. Minimum spiral weight, lbs/ft: 30.123.5.
B. Specific Requirements:
1. Incline: 0°.
2. Length: As shown on drawings.
3. Number of inlets: 1.
4. Number of outlets: 1.
5. Number of actuated gates: 0.
6. Maximum screw speed, rpm: 20Screw speed, rpm: 14.
7. Minimum trough width, inches: 1417.
8. Minimum drive horsepower: 7.5 hp.
9. Location of drive: Outlet.
10. Non-Reversing screw.
11. Trough bottom drain size, inches: 4 inch.
C. Design Guarantee Summary:
1. See General Shaftless Screw Conveyor Specification Section 14550, SHAFTLESS SCREW CONVEYORS - GENERAL.
D. Design Calculations:
1. See General Shaftless Screw Conveyor Specification Section 14550, SHAFTLESS SCREW CONVEYORS - GENERAL.
1.5 SUBMITTALS
A. See General Shaftless Screw Conveyor Specification Section 14550, SHAFTLESS SCREW CONVEYORS - GENERAL.
1.6 DELIVERY, STORAGE AND HANDLING
A. See General Shaftless Screw Conveyor Specification Section 14550, SHAFTLESS SCREW CONVEYORS - GENERAL.
1.7 MANUFACTURER'S QUALIFICATIONS:
A. See General Shaftless Screw Conveyor Specification Section 14550, SHAFTLESS SCREW CONVEYORS - GENERAL.
PART 2 PRODUCTS
2.1 ACCEPTABLE MANUFACTURERS
A. See General Shaftless Screw Conveyor Specification Section 14550, SHAFTLESS SCREW CONVEYORS - GENERAL.
2.2 GENERAL
A. See General Shaftless Screw Conveyor Specification Section 14550, SHAFTLESS SCREW CONVEYORS - GENERAL.
2.3 METAL FABRICATION
A. See General Shaftless Screw Conveyor Specification Section 14550, SHAFTLESS SCREW CONVEYORS - GENERAL.
2.4 MATERIALS OF CONSTRUCTION:
A. See General Shaftless Screw Conveyor Specification Section 14550, SHAFTLESS SCREW CONVEYORS – GENERAL.
2.5 EQUIPMENT
A. See General Shaftless Screw Conveyor Specification Section 14550, SHAFTLESS SCREW CONVEYORS – GENERAL.
2.6 ACCESSORIES
A. Catwalk
1. Design catwalk to provide for observation, inspection, and servicing of the conveyor.
2. Walkway width and landing: As shown on drawings.
3. Fabricate from aluminum grating and handrails as specified in DIVISION 5.
4. Fabricate support framing from ASTM A36 structural shapes and framing members hot-dip galvanized after fabrication.
5. Support from building structure as required.
2.7 FINISHING
A. See General Shaftless Screw Conveyor Specification Section 14550, SHAFTLESS SCREW CONVEYORS - GENERAL.
2.8 INSTRUMENTATION AND CONTROLS
A. See General Shaftless Screw Conveyor Specification Section 14550, SHAFTLESS SCREW CONVEYORS - GENERAL.
PART 3 EXECUTION
3.1 INSTALLATION
A. See General Shaftless Screw Conveyor Specification Section 14550, SHAFTLESS SCREW CONVEYORS - GENERAL.
3.2 MANUFACTURER'S SERVICES
A. See General Shaftless Screw Conveyor Specification Section 14550, SHAFTLESS SCREW CONVEYORS - GENERAL.
END OF SECTION
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