GRAVITY C700 User manual

1
C700 Operating Manual Issue 2
Manufacturing: 20 Cardrew Trade Park, Cardrew Way, Redruth, Cornwall, TR15 1SW, UK
Company No: 9333432 VAT No: 235774584 EORI No: GB235774584000
Gravity Cyclones is a division of Gravity Mining Ltd.
www.gravitymining.com,www.gravitycyclones.com, [email protected]

List of Contents
List of Contents 2
Overview 3
Location of Components 3
Parts Supplied 4
Assembly 4
Electrical Supply 5
Care Points 5
Hydrocyclone Installation 6
Filling the Reservoir 6
Motor Control 7
Hydrocyclone Test 8
Shut-Down & Cleaning 8
System Blockage 9
List of Appendices
1. Cyclone Adaptor Requirements
2. Inverter Settings
3. Hydraulic Diagram
4. Pump Performance Curve
5. Spare Parts List
6. Troubleshooting Guide
7. Instruction Manual - TECDrive Inverter
2
C700 Operating Manual Issue 2
Manufacturing: 20 Cardrew Trade Park, Cardrew Way, Redruth, Cornwall, TR15 1SW, UK
Company No: 9333432 VAT No: 235774584 EORI No: GB235774584000
Gravity Cyclones is a division of Gravity Mining Ltd.
www.gravitymining.com,www.gravitycyclones.com, [email protected]

Overview
The C700 Hydrocyclone Test Rig is designed to test slurry materials with hydrocyclones up to a
diameter of 50mm. It employs a moving cavity pump driven by a variable speed electric motor
which is powered by a controllable inverter. The feed slurry is contained in a 60L tank and is
continually mixed by the bypass flow via the Pressure Control Valve. Flow to the cyclone is
controlled by the Flow Control Valve and pump speed with fine pressure control achieved by the
Pressure Control Valve. Both the overflow and underflow from the cyclone are recycled to the
reservoir tank.
Location of Components
3
C700 Operating Manual Issue 2
Manufacturing: 20 Cardrew Trade Park, Cardrew Way, Redruth, Cornwall, TR15 1SW, UK
Company No: 9333432 VAT No: 235774584 EORI No: GB235774584000
Gravity Cyclones is a division of Gravity Mining Ltd.
www.gravitymining.com,www.gravitycyclones.com, [email protected]

Parts Supplied
●Main Assembly
●Upper Feed Pipe Assembly
●Bypass Return Hose
●Reservoir Sieve
●Reservoir Lid
●Instruction Manual (electronic copy)
Assembly
Please complete the final assembly before use.
1. Place the reservoir sieve into the bottom
of the reservoir.
2. Place the Reservoir Lid onto the reservoir.
3. Attach the Upper Feed Pipe Assembly to
the Main Assembly via the feed pipe
union taking care to ensure that the
cyclone feed pipe is parallel to the main
chassis.
4. Remove the Reservoir Cover and attach
the Bypass Return Hose ensuring that
flow is directed to the reservoir. Note
that this can be rotated or removed to
allow re-fitment of the Reservoir Cover
but should always be replaced whenever
the system is in use.
4
C700 Operating Manual Issue 2
Manufacturing: 20 Cardrew Trade Park, Cardrew Way, Redruth, Cornwall, TR15 1SW, UK
Company No: 9333432 VAT No: 235774584 EORI No: GB235774584000
Gravity Cyclones is a division of Gravity Mining Ltd.
www.gravitymining.com,www.gravitycyclones.com, [email protected]

Electrical Supply
The inverter is already connected to the motor and has a flying lead for connection to the
customer’s power supply. Final connection will depend on the inverter specified and should be
undertaken by a qualified electrician
Connection instructions are presented in Appendix 6, section 4.3.
Care Points
●Always wear appropriate personal protective equipment.
●Only suitable for use on a flat hard floor.
●Disconnect electrical supply before undertaking any maintenance operation.
●The pump should not be run with an empty feed tank or with both the Flow and Pressure
Control valves closed.
●Ensure the cyclone and overflow pipe is fitted before operation.
●Only suitable for use with water based slurries.
●Dispose waste slurry in a safe manner and clean after each use
●When starting the motor always ensure that the overflow valve is fully open and that the
cyclone control valve is closed.
●Never exceed an inverter frequency of 60Hz.
●To prevent solids solidifying in the pump the system must be thoroughly cleaned after
each use.
●Only use the power supply specified.
●Do not allow solids to settle in the reservoir.
5
C700 Operating Manual Issue 2
Manufacturing: 20 Cardrew Trade Park, Cardrew Way, Redruth, Cornwall, TR15 1SW, UK
Company No: 9333432 VAT No: 235774584 EORI No: GB235774584000
Gravity Cyclones is a division of Gravity Mining Ltd.
www.gravitymining.com,www.gravitycyclones.com, [email protected]

Hydrocyclone installation
●Always ensure that the Reservoir
Cover is fitted before installing a
cyclone.
●The Hydrocyclone inlet must be
attached to the rig via the Cyclone
Mounting Flange (EN 1092-1 DN25)
with the underflow directed into the
Reservoir Tank.
●An overflow return pipe should be
fitted to direct overflow to the
Reservoir Tank.
●For larger cyclones we
recommended that a spray reducer
is attached.
●Cyclone removal is the reverse of
cyclone installation.
A full list of adaptor requirements can be
found in Appendix 1.
Filling the Reservoir
●Remove the Reservoir Cover and fit the Overflow Return Hose.
●Ensure that the drain valve is closed and fill the reservoir with 20 - 40L of test slurry.
●Close the Flow Control Valve and fully open the Pressure Control valve.
●To avoid blockage the pump should be started as soon as the slurry is in the tank.
6
C700 Operating Manual Issue 2
Manufacturing: 20 Cardrew Trade Park, Cardrew Way, Redruth, Cornwall, TR15 1SW, UK
Company No: 9333432 VAT No: 235774584 EORI No: GB235774584000
Gravity Cyclones is a division of Gravity Mining Ltd.
www.gravitymining.com,www.gravitycyclones.com, [email protected]

Motor Control
1. Connect to the power supply.
2. Turn the speed control to zero and ensure that the direction control is in the stop position.
3. Switch on electrical supply via the Power switch.
4. Turn the direction control to forward and adjust the motor speed until the required flow is
achieved. Notes:
○Motor speed is controlled by inverter frequency and that frequency will be
presented on the LED display. Never exceed a frequency of 60Hz.
○To prevent the pump running in reverse the reverse switch is disabled..
○Motor inverter frequency will increase slowly.
Motor shut-down is the reverse of start-up.
7
C700 Operating Manual Issue 2
Manufacturing: 20 Cardrew Trade Park, Cardrew Way, Redruth, Cornwall, TR15 1SW, UK
Company No: 9333432 VAT No: 235774584 EORI No: GB235774584000
Gravity Cyclones is a division of Gravity Mining Ltd.
www.gravitymining.com,www.gravitycyclones.com, [email protected]

Hydrocyclone Test
●Open the Flow Control Valve and adjust the Pressure Control Valve and Speed Control until
the required pressure is achieved and the flows have stabilised.
●Ensure that the cyclone is operating correctly with a combined discharge.
●Samples may be taken from either the underflow, overflow or bypass return.
●Time sample collection to determine mass and volume flow rates.
Shut Down & Cleaning
1. Fully open the bypass return hose and run the pump at the lowest speed (40 Hz).
2. Using a suitable container, take slurry from the bypass return hose until approximately 5L
of slurry remains in the tank. Note that complete removal of slurry will lead to pump
damage.
3. Add 20 - 30 L of clean water and then remove the diluted slurry via the bypass return hose
until approximately 5L of slurry remains.
4. Repeat stage 3 until the slurry is clean and free of solids.
5. Switch off the motor and drain remaining liquid via the Pump Drain Tap.
6. Fit the lid and remove the test cyclone.
7. Disconnect the electrical supply.
8. Clean all equipment with a cloth.
8
C700 Operating Manual Issue 2
Manufacturing: 20 Cardrew Trade Park, Cardrew Way, Redruth, Cornwall, TR15 1SW, UK
Company No: 9333432 VAT No: 235774584 EORI No: GB235774584000
Gravity Cyclones is a division of Gravity Mining Ltd.
www.gravitymining.com,www.gravitycyclones.com, [email protected]

System Blockage
There is a risk of pump blockage if slurry is allowed to stand in the reservoir without the pump
running. The system should never be allowed to rest for any length of time in this condition,
however, should such a blockage occur the following procedure should be adopted to clear it.
1. Fully open the pressure control valve and close the cyclone control valve.
2. Switch off the inverter and disconnect the power supply.
3. Remove and clean the Reservoir Sieve.
4. Remove as much slurry as possible from the reservoir.
5. Open the Pump Drain valve and use a hose to flush the pump entry chamber.
6. Repeat 4 and 5 until the pump entry chamber is clear.
7. Close the pump drain, replace the reservoir sieve and fill with 20 to 30 litres of clean
water.
8. Remove the pulley guard and manually rotate the pump pulley in a forwards and reverse
direction until it starts to rotate freely.
9. Replace the pulley guard, reconnect the power supply and switch on the inverter.
10. Carry out a standard shut down and cleaning cycle.
9
C700 Operating Manual Issue 2
Manufacturing: 20 Cardrew Trade Park, Cardrew Way, Redruth, Cornwall, TR15 1SW, UK
Company No: 9333432 VAT No: 235774584 EORI No: GB235774584000
Gravity Cyclones is a division of Gravity Mining Ltd.
www.gravitymining.com,www.gravitycyclones.com, [email protected]

Appendix 1 - Cyclone Adaptor Requirements
Hydrocyclone
Maximum
Feed Size
Feed Adaptor
Overflow
Underflow
GCH50N & F
300µm
None required
C700-030664
C700-030722
GCH50S
300µm
None required
C700-030664
Silicon Hose
38mm ID
GCH25F
200µm
C700-030716
C700-030663
C700-030717
GCCA1x10F
200µm
Integral with
Canister
Assembly
C700-030663
Silicon Hose
19mm ID

Appendix 2 - Inverter Settings
The inverter has been pre-set to the correct settings for this system.
Should the settings be lost the correct settings may be re-entered by pressing and holding the
NAVIGATE key for 2 seconds and using the UP and DOWN keys to enter the required setting.
Parameter
Description
Setting
P-01
Maximum Frequency (Hz)
60
P-02
Minimum Frequency (Hz)
40
P-03
First Acceleration Time (s)
5
P-04
First Deceleration Time (s)
5
P-05
Stopping Mode
0
P-07
Motor Rated Voltage (V)
230
P-08
Motor Rated Current (A)
2.4
P-09
Motor Rated Frequency (Hz)
50
P-10
Motor Rated Speed (rpm)
1460
P-11
Low Frequency Torque Boost (%)
0
P-12
Primary Command Source
0
P-13
Operating Application Type
0
P-14
Extended Menu Access Code
0
P-15
Digital Input Function Selection
8
P-17
Switching Frequency (kHz)
8

Appendix 3 - Hydraulic Diagram

Appendix 4 - Pump Performance Curve

Appendix 5 - Spare Parts List
Item
Part Number
Description
1
C700-030656
C700-030706
PRESSURE GAUGE - GROUT TYPE (STANDARD)
PRESSURE GAUGE - DIAPHRAGM TYPE (OPTIONAL)
2
C700-030694
FLOW CONTROL VALVE
3
C700-030545
PRESSURE CONTROL VALVE
4
C700-030654
BYPASS RETURN HOSE
5
C700-030460
C700-030713
INVERTER - 2.2kW single or 3 phase, 200 - 240v
INVERTER - 2.2kW 3 phase, 380 - 480v
6
C700-030655
CONICAL RESERVOIR
7
C902-030548
MOTOR
8
C700-030676
C700-030675
C700-030677
V-BELT PULLEY
TAPER LOCK BUSH
V-BELT
9
C700-030657
PROGRESSIVE CAVITY PUMP
10
PUMP DRAIN VALVE
11
C700-030707
CASTORS (SET OF 4)

Appendix 6 - Troubleshooting Guide
Issue
Possible cause(s)
Action
Pump does not start
a) Voltage and current too low
b) Slurry viscosity too high
c) Pump blocked
a) Check and adjust inverter
b) Dilute the slurry
c) Remove blockage (P9)
Reduced flow
a) Inlet blockage
b) Slurry viscosity too high
c) Rotor, stator or drive shaft damaged
d) Pump blocked
a) Remove and clean reservoir sieve
b) Dilute the slurry
c) Check and replace
d) Remove blockage (P9)
No liquid out of pump
a) Pipeline leak
b) Valves not fully open or blocked
c) Speed too low
d) Worn rotor and/or stator
a) Check pipework and replace or repair
b) Fully open the pressure control valve and
clear any blockage
c) Use the inverter to increase motor speed
d) Replace rotor and/or stator
Reduced pressure
a) Worn rotor and/or stator
a) Replace rotor and/or stator
Abrupt reduction in flow and pressure
a) Pipeline blockage or leak
b) Damaged stator
c) Sudden increase in slurry viscosity
d) Sudden reduction in voltage
a) Check pipeline for leaks and/or blockage
b) Replace stator
c) Dilute slurry
d) Check voltage supply to motor
Significant leak from pump shaft seal
a) Mechanical seal damaged
a) Repair or replace
15
C700 Operating Manual Issue 2
Manufacturing: 20 Cardrew Trade Park, Cardrew Way, Redruth, Cornwall, TR15 1SW, UK
Company No: 9333432 VAT No: 235774584 EORI No: GB235774584000
Gravity Cyclones is a division of Gravity Mining Ltd.
www.gravitymining.com,www.gravitycyclones.com, [email protected]

Appendix 7 - Instruction Manual - TECDrive Inverter

Appendix 7 - Instruction Manual - TECDrive Inverter

Appendix 7 - Instruction Manual - TECDrive Inverter

Appendix 7 - Instruction Manual - TECDrive Inverter

Appendix 7 - Instruction Manual - TECDrive Inverter