procedimientos flotacion
TRANSCRIPT
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PRE-OPERATION CHECKLIST FLOTATION AREA
Elaborated by: TECSUP Revised by:Approved by:
Doc. No.: SOP-FL-430-01
Rev. No.: A
Date :
Page1 of3
Objective:
To standardize the pre-operation checklist prior to START after PARTIAL OR TOTAL SHUTDOWN OF FLOTATION AREA, by keeping under control the potential risks , prevent losses and
stops in the process.
Scope:
This manual is applied to all staff, company employees and contractors involved in the START operation after a PARTIAL OR TOTAL SHUTDOWN OF FLOTATION AREA.
GENERAL DATA
Job acronyms:
OP.FL : Flotation Operator.
OP.PA : Panel Control Operator of Flotation.
JF.TN : Shift Chief Engineer.
MN.EL : Electrical maintenance
Charges:
OP.FL : Responsible for field operational tasks (checklist, cleaning, unclogged, etc.) of FLOTATION AREA, communicates and coordinates with the OP.PA while performing the
START after a PARTIAL OR TOTAL SHUTDOWN OF FLOTATION AREA.
OP.PA : Verify the equipment status from DCS, start the equipment operations in correct sequence by coordinating it with OP.FL.
JF.TN : Coordinate the START after a PARTIAL OR TOTAL SHUTDOWN OF FLOTATION AREA.
MN.EL : Lockout and unlock equipment, so as to energize it from the MCC for STARTING after a PARTIAL OR TOTAL SHUTDOWN OF FLOTATION AREA.
REQUERIMENTSPERSONAL PROTECTIVE EQUIPMENT
MATERIALS AND TOOLS
HARD HATSAFETY
GLASSES
SAFETY
SHOES
EARING
PROTECTONDUST MASKS
GLOBLES
PROTECTION
PROTECTIVE
CLOTHING
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
NN Description Qty Unit. Description Qty Unit
POTENTIAL RISKS
TASK SUMMARY
References:
Standard Operation Procedure for START operation after a PARTIAL OR TOTAL SHUTDOWN OF FLOTATION AREA.
REVISIONS
Rev. Description Rev. Apr.
TE: Issued type A: Preliminar C: For information E: For construction G: As built
B: For Aprobation D: For annotation F: For conformance H: Cancelled
TE FechaElab.
MN.ME : Mechanical Maintenance.
Most control actions are performed by the modules of the programmable logic control (PLC) through a workstation. The PLC can communicate
with the process control system of the concentrator (PCS) into the flotation area.
The workstation has a keyboard for input information, a color screen to present the information, and a pointing device (mouse) for control and
select actions from the panel control screen.
To start a equipment , the operator must ensure that all employees working in the area is cleared and the equipment is ready to go. Staff
working in the area near the equipment should be warned verbally prior to start.
TRIPHAZARD
DANGER DROPBELOW
ELECTRICSHOCK RISK
SLIPPERYSURFACE
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Who?
OP.FL.
What he does?1.1. Verify flotation area involved in the starting is
cleared from any personnel.
1.2.Verify equipment interior for any foreign
materials.1.3.Verify proper housekeeping in all flotation
area.
1.4.- Informed any breakdown to supervision.
According to result of checklist it will be possible
to start the plant.
What is checked?
The availability of the equipment for starting.
Why?
To identify abnormal conditions in the
equipments before the start.
FLOT AREA CHECK
BEGINNING
2
1
3
4
Who?
OP.FL. by coordinating with MN ELWhat he does?
2.1.Verify availibility and energization of te
equipments of flotation area.
2.2. Verify cubicle or switchgear of the motor starter
are closed and locked (the ones are in ON) in the
MCC.
Why?
In order to detect any failure and avoid delays
for starting.
Who?
OP.PA.
What he does?
5.1.-Check operation and warning signals of
alarms on the control panel .
Why?
To be available to operate them as required.
8
Who?
OP.FL.
What he does?3.1 Checks and verify air supply system for
instrumentation and process.
3.2 Verify compresor operation and that it yields
air to suitable pressure for plant.
Why?
In order to detect any failure and avoid delays
for starting.
VERIFY ALARMSYSTEM
VERIFY ELECTRIC POWER
AVAILABILITY
VERIFYSYSTEM
AVAILABILITY OF AIR
Who?
OP.FL.
What he does?
7.1 .Check conditioning tanks as follow:
Check the tanks is free from any waste or
debris. Verify valves, emptying tanks are closed.
Check the level instruments for any
breakdowns or loose connections.
Verify transmitters have electrical supply and
their signals reflect the level in the tank.
7.2. Check conditioning tanks agitators as
follow:
If they are full visible, Check blades and
shaft for any damage or excessive wear.
Check the safety guards are in place.
Check the motor and drive components for
any loose or damaged parts.
Verify mechanism is assemblied properly.
Check gearbox for suitable oil level.
7.3 .-Verifies no oil leaks on the shaft, from
gearbox or any part, since these are an
indication from a seal damaged.
7.4 .- Checks motor for any problem.
7.5 .- Check charge in the agitator tank.
Why?
To avoid outages during starting for any cause
or during operating because of subestandard
conditions.
FLOTATION CELLS CHECK
1st
Cleaner(430-TK-057 to 063)
1st
Cleaner/Scav(430-TK-064 to
069)
2nd
Cleaner (430-TK-070 to 074)
3rd
Cleaner (430-TK-075 to 078)
4th
Cleaner (430-TK-079 to 081)
5th
Cleaner (430-TK-082 tol 083)
6th
Cleaner (430-TK-084 to 085)
Who?
OP.FL.
What he does?
6.1 .Verify reagents are sufficient in the tanks
6.2 Verify selected isolating valves of dosing
pumps are prepared to start.
6.3. Check pumps are electrically and
mechanically operative.
6.4 . Check pipes for any leaking and its proper
location.
6.5. Check solenoid valve of control is
working properly
6.6.Verify dosing system for any problem.
Why?
To have ready the equipment for starting.
CONDITIONER TANKS
CHECK
3rd Cleaner (430-TK-003)
4th
Cleaner(430-TK-004)
5th
Cleaner (430-TK-005)
6th
Cleaner (430-TK-006)
2nd
Cleaner (430-AC-014)
1st
Regrind (430-TK-086/
087)
1st
Cleaner (430-TK-086)
7
Who?
OP.PA.
What he does?4.1 Verify fresh water is sufficient in the flotation
area.
4.2.-Check pressure of fresh water line.
Why?
To have ready the equipmentd for start.
VERIFY WATER
AVAILABILITY
5
REAGENT PLANT CHECK
A
6
A
B
Who?
OP.FL en coordinacin con MN ME
What he does?8.1 Check cell agitators for any problem.
8.2 Check belts and guards of drive.
8.3 Verify feed system level to flotation sump for any
breakdowns.
8.4. Verify calibration for all instrumentation in the
feed sump to float cell banks and in the dischargesump to tailing. Verify electrical supply of those
instrumentations for any problem.
8.5 Check the mineroducts feeding the tanks are
connected correctly.
8.6 Verify the air flow sensors and the flotation cell
control valves have free from breakdowns. Verify
instruments have electrical supply.
8.7 Check that level sensors for foam in flotation
cells are operative.
8.8.Verify level control system of float cells (level
sensors, control valves) for proper operation.
8.9.Verify concentrate launder of flotation cells
is free from any obstruction. 8.10.Open the
process water line valves for concentrate
launder sprays.
8.11.Verify foam lines to float cells for any
problem.
8.12.Check dart valve for proper operation or
any damage8.13.Check frames of cells for any leaks, or
excessive corrosion
Why?
To be operative as they requerid.
PRE-OPERATION CHECKLIST FLOTATION AREA
Elaborated by: TECSUP Revised by:Approved by:
Doc. No.: SOP-FL-430-01
Rev. No.: A
Date :
Page2 of3
POTENTIAL RISKSPERSONAL PROTECTIVE EQUIPMENT
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8/2/2019 Procedimientos flotacion
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Who?
OP.FL.
What he does?13.1. Check the fixed samplers are free from any
waste or debris accumulated.
13.2. When it to be necessary flush deeply the
sampler. In spite the system can be flushed
remotely, follow the next steps to do manually.
Shut off the valve of the line of the sampler.
Partially open the water valve for flushing so that
a small flow of flush water returns to the sampler.
Fully open the valve of flush water that flows to
sampler line and let to flush it for several minutes
(time depends on the size and length of the line).
Shut off valve of flush water of the line of
samplers and fully open the valve of flush water to
the sampler cutting head for some minutes.
Shut off valve of flush water and open the stop
valve of slurry line.
When the slurry flows to line, check the caudal of
the sample to confirm the sample flows as usual.
Why?
To be operative as they requerid.
9
B
10
REGRINDING MILLSCHECK
(430-ML-003/004/005)
Who?
OP.FL.What he does?
9.1 Verify motor for electrical supply and for
its operative status.
9.2.-Check pump feed sump is operative.
9.3. Verify cyclone valves for leaks its
operative status.
9.4 Verify control instrumentation system is
operative.
9.5 Verify mill structure is free from any
damage.
9.6. Check enough quantity of grinding media
Why?
Estar operativa en el momento que se le
requiera.SAMPLERS CHECK
(430-PU -011)
(430-SA -032)
(430-SA -013)
(430-PU -139)(430-SA -021)
(430-SA -024/031)
OVERHEAD BRIDGE CRANE
CHECK
14
Who?
OP.FL.
What he does?12.1 Check the pressure gauge of distributor box of
cyclones for misoperation.12.2 Checks each cyclone valves for loose
connections or any breakdowns.
12.3 Checks each cyclone to detect anybreakdowns. Verify that they are in proper place.
12.4 Verify the overflow and underflow launder of
cyclones are free from waste.
12.5 Open the feed valves for feeding cyclones.
Why?
Para identificar condiciones anormales en
los equipos antes del arranque.
B
Who?
OP.PA.
What he does?11.1. Verify the safety guards are in place.
11.2. Check the motor and other drive components for
any damaged parts.
11.3. Check the oil from bearing, and Verify oil level is
within the suitable range.
11.4. Check suction and discharge lines of the pump
are connected and without breakdowns.
11.5. Check the valves of seal water line forbreakdowns. Verify valves are closed and energized.
11.6. Check the manual isolating valves for any
breakdowns or leaks. Verify manual isolating valves
are open for selected pump operation.
10.7 .- Close the manual isolation valve for the spare
pump.
10.8 .- Check the valves of pressure gauges and
switches of seal water supply lines for any
breakdowns. Check isolating valves of switches and
pressure gauges are open.
Why?
To detect any faults and to avoid further
setbacks.
FEED PUMP SUMPS CHECK
FLOTATION AREA
C
13
Who?
OP.FL.
What he does?
15.1 Check the pump sump are free from any waste
or debris accumulated. Remove this material by
using safety procedures.
15.2 Verify that all guards are on place.
15.3 Check the motor and other drive components
for any loose or damaged parts.
15.4 Verify discharge line is connected properly,
without lost or breakdowns. Verify drainage valve is
closed.
15.5 Verify switch of the sump level is free from
breakdowns, and it is energized.
15.6 Verify pump controller is switched to Manual
mode.
Why?
To be operative as they were requerid.
SUMP PUMPS OF
FLOTACION AREA CHECK
15
Who?
OP.FL.
What he does?
14.1.-Check overhead bridge crane of float
area is in place and available.
14.2.- Parks properly the overhead bridge
crane when it not is used.
Why?
To be operative as it requerid.
Who?
OP.FL.
What he does?
10.1 Verifies the manual valves are open. Verify
valve body are free from loose.
10.2 Check lines of air instrumentation air is
properly connected
10.3.-Check the tank for any accumulated waste or
debris.
10.4. Verify the tank drain valve is closed.
10.5 Check the tank level indicators have no faults.
10.6. Contact with control room and switchs the
level indicator controller to Manual mode.
10.7 Verify mechanisms is assembled firmly. 10.8.-
To receive instructions, open the manual valve of
process water to begin to fill the tank as requerid.
10.9. Once the tank reached the desired level,
closes the corresponding valve.
Why?Estar operativa en el momento que se le
requiera.
FEED PUMPS CHECKS
FLOTATION AREA (430-PU-
011 TO 027)
11
CYCLONE CLUSTER (430-CY-
003) CHECK
12
PRE-OPERATION CHECKLIST FLOTATION AREA
Elaborated by: TECSUP Revised by:Approved by:
Doc. No.: SOP-FL-430-01
Rev. No.: A
Date :
Page3 of3
POTENTIAL RISKSPERSONAL PROTECTIVE EQUIPMENT
END