Procedimientos flotacion

8/2/2019 Procedimientos flotacion

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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


2/3

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


4th


5th

Cleaner (430-TK-082 tol 083)

6th


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


2nd

Cleaner (430-AC-014)

1st

Regrind (430-TK-086/

087)

1st


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.




Rev. No.: A

Date :

Page2 of3

POTENTIAL RISKSPERSONAL PROTECTIVE EQUIPMENT


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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




Rev. No.: A

Date :

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POTENTIAL RISKSPERSONAL PROTECTIVE EQUIPMENT

END

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Procedimientos flotacion