A product of
EleVeyor® Mfg. Div.
NorthEast
Fabricators, LLC
Post Office Box 65
30-35 Williams St.
Walton, NY 13856
Phone: 607-865-4031
Fax: 607-865-8306

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SECTION 14550

BELT CONVEYOR/ELEVATOR

• Part 1 - General
• 1.1 - Descriptions Of Work
• 1.2 - Related Documents
• 1.3 - Quality Assurance
• 1.4 - Submittals
• 1.5 - Manufacturer's Qualifications
• Part 2 - Product
• 2.1 - General
• 2.2 - Product - Two Conveyor System
• 2.5 - Electrical / Controls
• 2.6 - Shop Painting / Finishes
• 2.7 - Spare Parts
• Part 3 - Execution
• 3.1 - Field Construction Quality Control
• 3.2 - Manufacturer's Field Services
• 3.3 - Lubrication
• 3.4 - Field Adjustment / Start-up Field Testing
• 3.5 - Operation Demonstration
• 3.6 - Spare Parts
• 3.7 - Operations & Maintenance (O & M) Manuals
• 3.8 - Training

A.  The work covered by this Section shall include the furnishing of all labor and materials to complete the equipment fabrication, installation and initiate satisfactory operation of a complete conveyor system, as shown on the contract drawings and as specified herein. The system shall be designed to receive the designed product, conveying it to its final destination without spillage or carry back of material. The length of the sections of the belt conveyor/elevator and the angle of the inclined section will be as shown on the plans with the exact final dimensions to be determined by the Contractor to suit the originating equipment and the belt conveyor/elevator to be used as well as the plant layout.

B.  The conveyor system shall consist of belting, idlers, head and tail section machinery, conveyor frame, drive, loading skirts, drip pan, support steel and other appurtenances necessary to provide a complete installation for satisfactory operation.

 
C. The conveyor system shall be of the following design:

1.  A conveyor system consisting of an elevating/transport conveyor with a discharge device.

D.  It is the intent of this Contract that the final installation be complete in all respects and the Contractor shall be responsible for minor or specific details; coordination with trades, equipment manufacturing, installation and manufacturers start-up representatives and any necessary special construction not specifically included in the Drawings or Specifications.

 
E.  The Contractor shall pay particular attention to the following elements of the installation:

1. Electrical Coordination: The Contractor shall coordinate all electrical components including wiring, conduit, equipment and installation based on the shop drawings for the equipment being supplied by providing the Electrical Contractor/trade with the appropriate drawings and information.

 
2.Belt Filter Press Installation: The Contractor shall coordinate the installation of the conveyor with respect to orientation of belt filter press discharge chute as shown on the shop drawings.

 
3.  Sludge Truck Loading Bay Construction: The Contractor shall provide proper installation clearance for the conveyor with regard to construction of the sludge dewatering building and the sludge truck loading in particular.

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A.  Drawings and general provisions of Contract including General Supplementary Conditions and Division-1 Specifications sections apply to work of this section.

 
B.  The following equipment and related work is specified and furnished under other items:

1.  Concrete Work  -  Section 03300

2.  Metals  -  Division 05000

3.  Belt Filter Press Dewatering Equipment  -  Section T11825

4.  Electrical  -  Division 16000

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A.  The named equipment in addition to the detailed specifications establishes the  minimum acceptable standards of material and workmanship.  In addition to requirements of these Specifications all work performed shall be in accordance with approved trade practices and manufacturer recommendations.  All equipment shall perform as specified  and accessories shall be provided as required for satisfactory operation.

 
B.  Responsibility and Coordination:

1.  Under this Contract the Contractor shall be responsible for the purchase, storage and installation of the belt conveyor complete and any accessories required.  The devices shall be completely wired, tested and be suitable for operation.

 
2.  The drawings and Specifications are intended to illustrate and define the equipment installation but do not propose to cover all details entering into its design and construction, however the Contractor shall properly install, adjust and place in operation  the complete installation.  The Contractor shall assume full responsibility for additional  costs which may result from authorized deviations from the Specifications.

C.  The Contractor shall coordinate and verify that the equipment furnished meets the Specification, intent and design criteria prior to equipment submittals and shipment from the manufacturers to the project site.

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A. Product Data:  Submit manufacturer's technical data and application instructions in accordance with Item 61.

 
B.  Shop Drawings:  The Contractor shall submit complete shop drawings of all equipment furnished for this project as covered by these Specifications.  The Contractor's submittal  must include a certification that the submitted material describes exactly the equipment to be provided.  Substitutions of equipment subsequent to those equipment names provided with the bid or to previously approved will not be accepted.  All shop drawings shall  clearly identify the specific equipment and material being supplied, the quantity being supplied and all accessories, dimensions, descriptions, mounting and connection details,  electrical control diagrams, wiring schematics and any other information necessary to determine compliance with the plans and Specifications.

 
C. Operation and Maintenance Manuals:  Operation and Maintenance (O & M) Manuals shall be submitted when requested to the Owner's Representative prior to delivery of the equipment.  The O & M Manuals shall comply with Item 97.

 

D. Warranty:  The Equipment Manufacturer shall warrant that all equipment furnished by him shall be free of defects in the material and workmanship for a period of one (1) year from the date of acceptance.

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A.  Only Manufacturers who can demonstrate a successful record of five (5) years or more in the design, manufacture and supply of vertical belt conveyor/elevators for sewage treatment plant sludge cake applications will be considered as qualified to supply this equipment.

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A. Description:  The elevating belt conveyor shall be horizontal from the belt filter press discharge chute to the vertical lift portion and then horizontal again to the discharge  points.  The vertical lift portion of the conveyor shall be oriented at a 90°  angle to the horizontal portion.  The conveyor system shall be designed to convey dewatered sludge at 18 to 26% dry solids from the belt filter press to the reversing/shuttle conveyor in the Truck Loading Bay, or to the West Biosolids Storage Building.  All components of the system shall be designed for a maximum rate of (per customer specifications) wet tons per hour and a maximum belt speed of (per customer specifications) .  A minimum (per customer specifications) foot clearance is required below the reversing/shuttle conveyor in the Truck Loading Bay.

B. Manufacturer:  The conveyor system shall be furnished by EleVeyor® Mfg. with no substitutions.

A. Elevating Conveyor

1.  The elevating conveyor equipment shall consist of two conveyor belts, framework, supports and head, drive and take-up stations.  The conveyor shall be (per customer specifications) feet long (end to end of casing).  Belt width shall be (per customer specifications) .  Belt speed shall be approximately (per customer specifications) ft./min.  Product shall be loaded and distributed evenly at a momentary rate not to exceed (per customer specifications) ton/hour.

Belts shall be flat-surfaced, elastomer covered, polyester fiber reinforced, resistant to water, mildew, oils and abrasion.  The conveyor belts shall be watertight and shall operate in a sandwich mode to securely hold the product in the elevating section of the system.  Two double-edged scraper blades for each belt shall assure total product discharge.

OPTION: Intermediate Discharge Arrangement
There shall be an Intermediate Discharge Device using a V-plow or a diagonal plow to move the product off the belt at point indicated in the plans.
 

There shall be an Intermediate Discharge Device using a V-plow or a diagonal plow to move the product off the belt at point indicated in the plans.

 
The conveyor belting shall consist of a top cover of elastomer suitable for the application 1/8 inch thick, an interwoven tension fabric of polyester/nylon construction and a bottom cover 1/16" thick.  The belts shall be field spliced by the hot vulcanizing method per  manufacturer's instructions.  All shop welding shall conform to the latest standards of the American Welding Society.  All nuts, bolts and washers shall be of 304 S/S.  The stainless steel casing shall be unpainted.

 
The conveyor frame shall be a formed channel of 12 ga. stainless steel.  The lift section shall be totally enclosed, as will be the corner modules except for the bottom corner, which shall be open at the bottom to facilitate run-off of wash-down water into the drain area of  the floor below.  The horizontal discharge leg shall have continuous sloped drip pans of 16  ga.stainless steel.

 

 
Drive System:  Each belt shall be driven by a shaft-mounted and direct-coupled gear motor liberally sized to carry the load.  AGMA II rating and Corro-Duty service rating is required.  Total combined drive power shall be (per customer specifications) HP consisting of one (per customer specifications)  HP for the carry belt and (per customer  specifications) HP for the cover belt.

 

Conveyor Configuration:  Belt line shall consist of a horizontal infeed section of (per customer specifications) feet, a 90° inclined elevating section of (per customer specifications) feet and a horizontal discharge section of (per customer specifications) feet to the discharge head pulley.  An intermediate discharge device shall be located as shown in the plans.

 
The elevating lift section shall incorporate the sandwich belts shaped and controlled by the Trackushion™ self-tracking and forming pressure rollers manufactured by EleVeyor®  Mfg. Div.

Adjustable UHMW polyethylene skirt boards fitted with contact seals shall facilitate proper concentration of the product on the belt centerline.

Side mount stainless steel belt-tensioning take-ups shall be provided at the tail pulley of  each belt.

Each belt shall be provided with two (primary and secondary) full width scraper blades at its discharge pulley.  Scraper blades shall be made of polyurethane and they shall be double-edged to extend useful life.

With the exception of the troughed idlers, all idlers shall run on externally mounted, pre- lubricated and permanently sealed precision ball or roller bearings.

Troughing idlers shall be solid UHMW P.E. rollers with submersible bearings to withstand high pressure water wash-down operations.

Head pulleys shall operate on double row spherical roller bearings.  Other pulleys shall use precision ball bearings.

Eight inch (8") dia. (minimum) crowned face end pulleys shall be provided.  The head pulleys shall be lagged with 3/8" thick neoprene lagging with diamond grooves to prevent slippage.

90° bend pulleys shall be six inches (6") in diameter with tracking adjustment bearing mounts.  45° bend rollers shall be four inch (4") Trackushion™ type rollers with external bearings with tracking adjustment mounts as needed.

B. Intermediate Discharge Device: The intermediate discharge arrangement consists of the normally troughed carry belt which, for the discharge operation, is lifted by a low-friction table against the plow blade  ("V" or Diagonal).  The table is actuated by a 115 VAC linear actuator.  The plow blade is held in place by an adjustable spring tensioning device.  Provide limit switches for activating remote position indicator lamps.

 
C. Emergency Stop: Emergency stop tag lines (orange colored) shall be fitted along both sides of the infeed leg.  They shall operate a NEMA 4 emergency stop switch with SPDT switch.  Switch to be wired so that re-set will not restart the conveyor.

 

D. Reversing Shuttle Conveyor:

1.  The Reversing Shuttle Conveyor (RSC) shall consist of a formed sheet metal frame, tail  drive and snub pulley as needed, an endless conveyor belt, a belt scraper mechanism at each end, full length skirt boards on both sides, four (4) transport wheels (2 driven), a belt drive motor/reducer and a shuttle drive motor/reducer.  The overall length of the RSC shall  be (per customer specifications).  The shuttle conveyor shall operate to distribute the product over the full length of the cargo box below.

 
2.  The conveyor belting shall be smooth-surfaced with a 2-ply 150 PIW carcass and shall be endless spliced.  Covers shall be MOR.

 

3. The conveyor frame shall be a 14 gauge stainless steel formed slider bed suitably  reinforced to assure rigidity and integrity of alignment.

 

4.  The belt drive shall be a right angle drive with a 1-1/2HP TEFC230/460/3PH/60HZ  motor.  Belt speed shall be 100 FPM.  The Shuttle transport drive shall be a 1/2HP  TEFC230/460/3PH/60HZ motor with right angle reducer.  Shuttle transport speed shall be  25 FPM.  Power shall be supplied to the motors by a festoon or cable reel system.

 
5.  The conveyor shall travel with its wheels running within, or on top of, channel supports on both sides.  Travel distance shall be adjustable by means of limit switches.

 

6.  Adjustable UHMW PE or stainless steel full length skirt boards with contact seals shall  be furnished to assure proper placement of the product on the conveyor belt without  leakage.

7.  Screw type take-up mechanisms shall be provided to adjust belt tension.

8.  Spring-tensioned polyurethane blade belt scrapers shall be mounted at head and tail  pulley to remove product sticking to the belt.

9.  All bearings shall be precision ground regreasable ball bearings with cast iron flange blocks.

10.  All pulleys shall be four inch (4") diameter crowned face x 26" side with shafts dimensioned to prevent excess deflection per CEMA standards.  Drive pulley shall be lagged with MOR lagging with diamond grooves.

11.  Emergency stop and zero speed switches shall be mounted in suitable locations on each conveyor by the manufacturer and wired under the Electrical Contract.

12.  At least one (1) electrical lock-out switch shall be mounted in a suitable location for safety during maintenance operation.  (Electrical Contract)

A.  Motors, limit switches, safety switches, festoon or cable reel systems as specified above  shall be furnished and installed by the Conveyor Manufacturer.

 
B.  Control panels, instrumentation, motor starters, wiring and conduits shall be provided by the Electrical Contractor under Electrical  -  Division 16.

 

C.  Automatic Sequence of Operation:

1.  Intermediate Diverter may be operated whether or not the conveyors are running.  There shall be a position selector switch and indicator lamps on the control panel to allow selection and confirmation that the Diverter is set to "Intermediate" or to "Final Discharge."

 
2.The Reversing Shuttle Conveyor motors are disabled when Diverter control is set to "Final Discharge".

 
3.  When Diverter selector is set to "Intermediate" the Reversing Shuttle Conveyor and shuttle transport operate continuously.  The transport travels back and forth on its tracks and reverses as determined by limit switches at the ends of its travel.  The conveyor drive also reverses simultaneously. 

 
4.  The Elevating Conveyor Motor and Vertical Cover Belt Motor are electrically interlocked to operate together.

 
5.  In Automatic Mode, all requisite equipment, as determined by the Diverter Selector  Switch position, must be powered and operating in order to enable the originating equipment to operate.

 

6.  Failure or emergency stop of any conveyor system component will disable the originating equipment.

 

7.  For shutdown of the originating equipment under Automatic Mode, a time delay will be incorporated into the controls to empty or unload all downstream equipment prior to stopping.

A.  Shafting and other exposed machined surfaces shall be coated with a rust inhibitive  compound.

1.  Two (2) carrying and one (1) return idler for each conveyor

2.  One (1) replacement belt wiper blade for each belt wiper

3.  Two (2) shuttle travel limit switches

4.  Two (2) pulley, idler and/or roller bearings of each type

5.  Two (2) 5' belt repair sections of each type

A.  The belt conveyor/elevator and reversing conveyor will be delivered by the  Manufacturer in fully assembled head, tail and intermediate sections approximately 10 feet  in length with match marked splice plates and complete with splicing hardware and  instructions.  No field welding shall be required.  Assembly will consist only of joining the sections, anchoring the supports, installing the belt and electrical hook-up. 

 
B.  Procedure: The Contractor shall submit to the Owner for review and comment a construction procedure and quality control procedure prior to commencing work.  Construction procedure and all required testing shall comply with these specifications and all applicable codes and standards.

1.  Inspection:  Prior to all work of this Section, carefully inspect the fabricated and installed work of all other trades and verify that all such work is completed to the point where this installation may properly commence.

 
2.  Inspect all parts of the furnished equipment and verify that the system may be installed in strict accordance with all pertinent codes and regulations, the original drawings, the referenced standards and the manufacturer's recommendations 

 
3.  Discrepancies:  Notify the Owner's Representative immediately of all unsatisfactory  conditions or discrepancies.  Do not proceed with installation in areas of discrepancy until all such discrepancies have been fully resolved.  Beginning with the installation means the  installer accepts the existing surfaces and conditions. 

 
4.  Coordination:  It is the Contractor's responsibility to notify and coordinate with the  equipment manufacturer and other trades in a timely manner in order for them to conduct  their required work, inspection, servicing, testing and instruction. 

 

5. Anchorage:  The Contractor shall be responsible for furnishing and placing all anchorage systems for the installation of the equipment.  The Contractor shall coordinate  with the manufacturer in identifying proper size and locations of all anchorage.  All nuts, bolts and washers used for assembly are to be stainless steel and installed using an anti-seize compound.

 
6.  Protection:  Protect adjacent equipment, materials, piping, structures and/or valving  against damage from the installation procedure.  All exposed, accessible rotating parts as well as the drive mechanism to be covered with an OSHA type guard to prevent accidental  injury.  These guards to be constructed of minimum #14 gauge mild steel.

 
7.  Manufacturer's Instructions:  Preparatory work in accordance with manufacturer's instructions shall be completed prior to equipment installation.

A.  Storage Lubrication.  Any equipment delivered and stored shall be checked at delivery  for storage practices and lubricated for long term storage as recommended by the  equipment manufacturer as outlined in the O & M Manual.

 
B.  Continuous Service Lubrication.  As part of the equipment start-up and testing  procedures, the Contractor shall service and lubricate the equipment for continuous duty  in accordance with the manufacturer's recommendations.

A.  Prior to acceptance, conduct an operational test of the equipment herein specified and  controls systems in accordance with start-up and testing, under the observation of the Construction Manager, to determine if the installed equipment meets the purpose and intent of the specification. 

 
B.  A factory trained engineer from the equipment manufacturer shall conduct the tests in  the presence of the Owner.  The equipment manufacturer shall provide all materials,  instruments and equipment required for the tests and shall provide a written report of test  results to the Contractor and Owner.

 
C. Certification:  The manufacturer shall submit to the Engineer and the Owner a written  notarized report of the results of the tests which includes certifying that the equipment has been checked and is suitable for operation.

A.  The Contractor shall demonstrate the operation of equipment for a period of one (1) day  prior to final acceptance and initiation of the warranty period by the Owner.

A.  The manufacturer shall provide, as a minimum, a complete inventory of all manufacturer  recommended spare parts.  This shall be in addition to any spare parts or equipment  specified in this section.  Spare parts shall be protected and packaged as recommended by  the manufacturer.  Each  package shall be tagged for positive identification noting:  part  name, part number, associated  equipment name and number, manufacturer name and  address.

Operation and Maintenance (O & M) Manuals will be provided by the equipment  manufacturer at  least two (2) weeks prior to shipment of all major equipment components.  The O & M Manuals  shall include instructions on storage, installation, start-up and  operation and maintenance, together  with a complete parts list and a recommended spare  parts list.  Each O & M Manual shall be a  bound, indexed binder with drawings and parts  lists prepared specifically for this project rather than  general instructions that are not  designed for this project.  The manual shall be in accordance with  Item 97 of Division 1.  As a minimum the manual shall contain:

A.  General arrangement and detail equipment drawings.

 
B.  Detail erection drawings.

 
C.  A complete bill of materials for the equipment including the weights of all components.

 
D.  Installation, operation and maintenance instructions for the specific equipment  including the erection sequence, maintenance and trouble-shooting check points and  complete lubrication procedures with recommended grades of lubricants.

 

E.  Cut sheets for all items of equipment purchased from other manufacturers.

F.  A list of the manufacturer's recommended spare parts specifically denoting wear items,  long delivery items and all items convenient for stocking as optional replacement items.

G.  An address, phone number and contact person for servicing equipment and ordering  parts.

A. The equipment manufacturer shall each provide a one (1) day training session on the  operation and maintenance and control of the equipment after installation is complete and  before the start-up and testing of the first unit.  The number of personnel required to attend  the training sessions shall be requested of the Owner by the Contractor at least ten (10)  working days before the scheduled training date.

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