Project Ref: |
41621 | |
Client: | Thiess Sedgman JV | |
Project: | Dawson Alliance Coal Project | |
Scope: | Dynamic Conveyor Take-Up Winches |
The conveyor take-up winch is supplied as a fully assembled unit mounted on a single base frame suitable for bolting either onto a steel structure or concrete plinth and using shims for levelling.
The conveyor take-up winch will act on the associated take-up pulley trolley via a sheaved cable system with a 4:1 reeving ratio.
A load cell connects the wire socket to the lug on the take up winch base frame. The load cell is wired to a load cell monitor, which provides an output signal of the belt tensions for display on the LCS and processing by the PLC.
The LCS display unit also displays high tension and low tension set point outputs.
The PLC will process the input signals from the LCS (digital inputs and analogue tension value) and determine when to start and stop the variable speed drive. The PLC will also signal to the LCS the status of the system (digital outputs).
Dynamic braking resistors with continuous rating are provided for conditions where the take up winch is winding out rope to reduce the belt tension.
A Local Control Station (LCS) is located adjacent to the take-up winch base frame. It contains all of the terminals for connection of all winch control and signal components as well as the load cell transducer.
When increasing tension in the system, the VVVF drive will ramp up frequency. When the frequency exceeds the Brake Release Frequency the brake will release. The drive will operate at full speed until, run at full speed until the tensions set point is approached. The VVVF will ramp down the frequency, applying the brake when the frequency reaches a specified limit and stop.
When decreasing tension in the system, the VVVF will increase frequency, releasing the brake when the Brake Release Frequency is reached. When full speed is reached the VVVF drive run at full speed until the tension set point is approached. Then reduce frequency until the Brake Release Frequency is reached then apply the brake and stop. During normal operation, when the winch is modulating around the Tension Set Point, the winch may not reach full speed before required to stop.
The variable speed drive is equipped with a dynamic braking resistor. During tension decrease phase (winch reverse direction) energy is dissipated from the motor by a dynamic braking resistor. Assistance from the VVVF supplier may be required to determine the Brake Release Frequency.
Winch over load protection A winch overload alarm is derived by monitoring the VVVF “motor torque” parameter. This should be set to 150% of motor FLT. The PLC will determine if an alarm condition is present, and signal to the VSD to STOP, as well as preventing forward direction (increase tension) from occurring.
Local Control Station, PLC’s, Winch over load protection and Variable Voltage Variable Frequency Drive are supplied by others.
Capacity : 8 tonne
Winch Speed : 0.3/0.05m/min
Reeving : 1
Final Drive Type : Direct
Static Rope Pull : 78.48kN
Rope Diameter : 24mm
Rope Construction : QS 816V
Rope Breaking Strength : 467kN
Rope Safety Factor : 5.95
Total Length of Rope : 120m
Rope Drum Diameter : 738mm
Drum Grooved Length : 1300mm
Drum Groove Pitch : 27mm
Gearbox Ratio : 222.326 : 1
Motor Power : 30 kW
Brake Torque : 400 Nm
Eilbeck Winches Towering Tough International Competition, and Proudly Exporting to Panama, Central America.
Special 15t man riding winches used to pull slip form and finishing platform with people riding on it.
Bechtel's Amrun Project Maintenance Winches
Design, manufacture and delivery of the special and unique hydraulic winches for the Amrun Project through Bechtel Australia.
These take-up winches are operated automatically through the Client’s Process Control System (PCS) to maintain tension in the belt conveyor through…
After a successful supply of a replacement winch for boom luffing winch system in 2014 on Huntly 190 stacker, Alcoa engaged Eilbeck Crane Winch…
Each conveyor take-up winch is supplied as a fully assembled unit which consists of winch frame, rope drum, electric motor, motor brake, pawl system,…
Each conveyor take-up winch is supplied as a fully assembled unit which consists of winch frame, rope drum, electric motor, motor brake, pawl system,…
Billiton Mitsubishi Alliance Coal Operations PL, Hay Point - 50kN Tele Chute Winch, Tilting Bridge Hoist Assembly Telescopic Chute Winch
Winches Yandi Sustaining Project
Each conveyor take-up winch is supplied as a fully assembled unit which consists of winch frame, rope drum, electric motor, motor brake, pawl system,…
30t Apron Feeder Retraction Winch
E-2411 Samsung Roy Hill Car Dumper APF & D/C 30t Apron Feeder Retraction Winch for RCR Mining Pty Ltd
11t & 13.5t Take Up Winches and 630mm Sheaves
2 x 11t & 1 x 13.5t Take Up Winches & 18 x 630mm Sheaves for West Angelas Deposit B Project
8t Winch and Sheaves
Take-up Winches and Sheaves - Duro Felguera
Winches and Sheaves for Roy Hill Iron Ore
18t Tilting Bridge Winch and 15.5t Shuttle Winch
18t Tilting Bridge Winch - Hoist System & 15.5t Shuttle Winch Groote Eylandt Mining
These quality custom made winches built with an integrated engineering solutions with special electrical systems.
Sydney
53 Lancaster Street
Ingleburn NSW 2565
Phone: 61 (02) 9618 1904
Newcastle
1/50 Sandringham Avenue
Thornton NSW 2322
Phone: 61 (02) 4966 8022
Brisbane
3/12 Sudbury Street
Darra QLD 4076
Phone: 61 (07) 3376 8255
Mackay
32 Diesel Drive
Paget QLD 4740
Phone: 61 (07) 4998 5599
Perth
28 Jackson Street
Bassendean WA 6054
Phone: 61 (08) 9279 4800
Adelaide
2/23 Clovelly Avenue
Royal Park SA 5014
Phone: 61 (08) 8162 5150
Melbourne
321 Doherty’s Road
Truganina VIC 3029
Phone: 61 (03) 9369 7444