INVITATION OF BUDGETARY OFFER FOR SUPPLY, INSTALLATION AND

COMMISSIONING OF PLAIN WATER DUST SUPPRESSION SYSTEM IN CQ1-CQ2

BERTH AND BACK UP AREA OF PPT.

SUBMISSION OF BUDGETARY OFFER ON OR BEFORE DT. 09.04.2019.

EXECUTIVE ENGINEER

WORKSHOP DIVISION-I

PARADIP PORT TRUST

CONTACT NO. 06722-222074

CONTACT PERSON:

SRI. NIHAR RANJAN BHOI (SE, WSD, PPT): 9556050300

MRS. BIJAYALAXMI MOHAPATRA (EE, WSD-I, PPT):9937565111

REQUEST FOR BUDGETARY OFFER

(A) GENERAL INFORMATIONS:

Sl. No. Item Details

1. Name of Work Supply, installation and commissioning of plain water

dust suppression system in CQ1-CQ2 berth and back

up area of PPT.

2. Department / Organization ELECTRICAL & MECHANICAL DEPARTMENT /

PARADIP PORT TRUST

3. Executive Design Workshop Division-I

4. Officer Inviting the Offer Executive Engineer

5. Immediate Next Authority Superintending Engineer

6. Sanctioning Authority Chairman, PPT

7. Executing Authority Executive Engineer

(B) OTHER INFORMATIONS:

Sl. No. Item Date Time

1. Publication Date 20.03.2019 12:00 Hrs.

2. a) Document Download Start Date 20.03.2019 12:30 Hrs.

b) Document Download End Date 09.04.2019 17:15 Hrs.

3. a) Start Date for Seeking Clarification

On-Line

_____ _____

b) Last Date for Seeking Clarification

On-Line

_____ _____

4. Date of Uploading Response to

Clarifications Sought

_____ _____

5. Offer Submission End Date 09.04.2019 17:15 Hrs

6. Offer Validity Period 120 days

7. Currency of Offer Indian Rupee

8. Language of Offer English

Scope of Work

Budgetary offer for the work: Supply, installation and commissioning of plain water dust

suppression system in CQ1-CQ2 berth and back up area of PPT.

Paradip Port Trust intends to install a dust suppression system for its CQ1-CQ2 berth and backup

area of PPT. After installation and commissioning of the system, the same will be handed over to

the contractor for operation and maintenance of system for three (03) years in consideration of

one (01) year warranty period.

In this context the following data are annexed for reference.

1. System Concept Envisaged

2. P & ID for SPDS

3. Drawing of VAT (03 sheets) – Annexure-1

4. Drawing of pump house (tentative)- Annexure-2

5. BOQ for supply of goods and execution including O&M for 03 years.

It is requested to submit budgetary offer along with all terms & conditions as per system

envisaged. It is also requested to suggest any addition / modification / deletion to the system

envisaged, drawing, BOQ in order to make the system more robust, reliable & economic and

accordingly furnish the offer in consideration with changes suggested. Both the offers i.e. (1) as

per our system concept & BOQ and (2) if changes suggested shall be inclusive of all taxes, duties

and other incidentals except GST.

Name of Work: Supply, Installation & Commissioning of Plain Water Dust Suppression

System in CQ1-CQ2& back up area of PPT

DESCRIPTION OF SYSTEM ENVISAGED

A. System Description:

The system designation and corresponding area covered is as under.

Sl.

No.

System Area Covered Pump House

Location

1 PWDSS* Dust suppression system for CQ1-CQ2 berth

&it’s back up area in one side and plots in

other side.

Within 100m radius

from the stockpile

*Plain water dust suppression system

B. Coverage:

Sl. No. Stockpile Dimension

1 Length : 700 m

Width : 70 m

Height : 15m

Qty.: 2nos i.e. CQ1-CQ2 berth &it’s back up area in one side and siding plots in

other side. Full circle sprinklers are to be positioned in center.

C. System concept envisagedand Design Consideration

1. The intended Mechanized Water Sprinkling System will be having sump (vat) and pre-

fabricatedpump house with control roomfor operation of system. Sump and pump house

will be located within 100meters from the plot.

2. Water Requirement:

There is water requirement of 2809 cum per day for the intended system considering 20

hr operation per day. It is planned to source the water by making bore well in the vicinity

of location of the system. In general water from bore-well is slightly saline in nature.

Accordingly total system shall be designed to suit this type of quality of water.

3. Selection of sprinklers:

The throw of sprinkler shall cover width of the plot considering wind velocity.Hence, for

the purpose, radius of throw is considered 75meter.

Minimum capacity of Sprinkler:159 m3/hr (approximate)

Minimum Throw Radius: 75 m

Minimum Tip Pressure: 6.0 kg/cm2

Qty : 14 Nos.

Distance between 2 sprinklers: 50 meter (Approx.)

Make :Sime / Nelson/equivalent

4. Each sprinkler is connected to main header pipeline through Globe Valve & Control

valve. The sprinklers shall be operated automatically and sequentially through PLC. The

surface of stockpiles will bewetted by operating one (1) sprinkler at a time for this

stockpile.

5. There shall be 14 sprinklers to be installed in total. Out of that one sprinkler shall be

operating at a time. Inone hr. cycle each sprinkler shall run for 3.7min approximately. So

sprinkler will run one after another.

6. Water qty. required for dust suppression system when 1 sprinkler is working at a time and

each sprinkler ishaving capacity (159 X1) m3/hr =159.0 m3/hr

i.e. Total consumption = 159.0 m3/hr

Considering @10% margin total consumption = 175.0 m3/hr

Considering Pump capacity is 175m3/hr (1W+1S)

7. Evaporation rate = 1.3 lit/hr/m2.

Selected Sprinkler’s Capacity = 159 m3/hr.

So that sprinkler to be run ≈ 53 min for wetting the stockpile

Qty. of Sprinklers = 14 Nos.

So, eachsprinkler will be run for = 3.7 min.

Therefore one sprinkler will run for 3.7min after that another will run with overlapping of

10 sec and so on sequentially. This operationwill continue for 53min in an hour which is

a cycle time.

i.e. cycle time = 1 hr. = 60 min.

Sprinklers ON time = 53 min.

Sprinkler OFF / Pause time = 7 min.

1

2 3 4 5 6 7 8 9 1

0

1

1

1

2

1

3

1

4

1 2 3 4 5 6 7 8 9 1

0

1

1

1

2

1

3

1

4

ON Time =53min OFF

Time

=7

min

ON Time =33min OFF

Time

=

7min

Cycle Time = 60min (1hr)

Considering 20hr / day will be the operation time of dust suppression system.

i.e. total cycle time = 20 hr. / Day

Sprinklers ON time per day = 53min per hr. * 20 min = 1060 min.

Water consumption / Day = (159*1060/60) m3 = 2809 m3.

The pause time can also be controlled by adjusting the time sequence in the sequential

controller so thatwater consumption rate can be controlled as per site condition.

8. Lay out of Pipelines and valves arrangement:

Configuration of pipes and valves is considered as under.

a) There will be a continuous main header line (overhead &underground) of size

150NB.

b) Sprinklers are to be installed at an interval of 50meters (approximately). For this

purpose, risers of size 100NB pipe will be tapped from main header line.

c) The main overhead header line will be placed / laid along the retaining wall with

suitable base arrangement towards road side. Since retaining walls are not continuous

and there are 6 openings, the pipes shall be laid inside culvert existing in the openings

with suitable base arrangement. Height of retaining wall is 1.4 meter from road level.

Height of the sprinkler shall be decided considering to reach the stack height of

15meter so also width of 70meter.The riser stating from tapping point will be

positioned vertical by means of structural support. Accordingly, suitable section of

steel structural shall be selected to hold the riser firmly without any vibration of

sprinkler in operation. The support structures shall be anchored with the existing

retaining wall with grouting chemicals for proper rigidity. All the structural to be used

in system shall be galvanized and painted.

14th

no of sprinkler may be come on ground where there will be no retaining wall.

Hence, header line needs to be placed underground. For laying of pipe underground it

shall be at a depth of 1.5 meter from ground level. The bed of 300mm depth after

1.5meter from ground level comprising 225mm earth filling and 75mm sand filling

with proper compaction shall be prepared for placing &laying of pipeline. This

sprinkler and riser shall be placed in a retaining wall to be constructed new of

appropriate thickness (minimum 400mm overground) with proper supporting

structure.

9. VAT:

The location of the VAT will be located within a100m radius from the stockpile area and

to be made up of concrete structure having dimension as mentioned in Annexure-1 (3

Sheets).

10. Pump House:

Pump house has been considered within 100m radius from the stockpileadjacent to

VAT.The intended dust suppression system will be operatedfrom the control room in

Pump House. The pump house shall be connected to the VAT. The pump house shall be

constructed using pre-fab structures.Dimension of pump house as shown in drawings is a

tentative dimension for reference and dimension shall be freezed considering installation

of all equipment and its accessories.

Required no. of Pumps, MCCs, PLC panels will be installed in the pump house.

Necessary Gate valves, Globe valves, Pressure release valves, Non-return valves,

Pressure gauges, Pressure switches will be provided for each pumping unit. Strainer will

be provided at suction line in the pump inlet. Bypass arrangement with Pressure release

valve & Gate valve is considered in the discharge line to prevent the pump running at

shut-off head. A level switch is considered for Sump to avoid dry run of pump.Water will

re-circulate to the water sump from header line through by pass line when there is no

demand of water.

11. Operation of Pumps:

2 centrifugal pumps are required for smooth operation of the DSS system. Both the

pumps shall be operated in regular interval one after another.

12. Electrical System:

The connected load for total system is worked out to be 170 KW. LT MCC, PLC panel,

Lighting DBsare to be located in thepump house.The source of power supply 415V/AC,3

Ph& N, 50 Hz will be provided by PPT.LT MCC will be equipped with microprocessor

based incomer, Motor control center with earth fault protection, over current protection,

unbalanced load protection, control transformer, spare feeder etc.

All JBs to be installed at site are outdoor type and should be double door type with IP65

grade protection.

PLC with HMI will be provided for selection, control, and operationand monitoring of

the sprinkling system. All solenoid valve operated ON/OFF controller are to be operated

by 230 V AC.

Water flow in each sprinkler will be monitored throughflow switch and this signal will

appear in PLC panel with LED type fuse protector.Cables of suitable rating will be laid

along the pipeline.

13. Basic Data:

Following basic data may be considered for design of the system.

i) Site ambient condition

Maximum ambient air temperature: 55 deg. C (Outdoor equipment),

50 deg.C (Indoor equipment)

Minimum ambient air temperature: 10 deg.C.

Atmosphere: Humid and heavily dusty with dust from different

types of cargo coals / iron ores/chromes /

limestone etc.

ii) Design Specification for Electrical equipment

Auxiliary Power Supply

For Motor rated Up to 180 KW

and below

415V, 50 Hz, 3 phase, 3 wire solid earthed AC

For Motor control center (pump

starter panel)

415V, 50 Hz, 3 phase, 4 wire solid earthed AC

Control supply 240V, 1 phase, 2 wire, 50 Hz AC

Variation in power Supply

AC Supply Voltage Variation +/-10%

Frequency +/-3%

iii) Any other voltage levels required if any for instruments, Control System,

Panel/cabinets lighting shall be generated by the Contractor.

All equipments shall be suitable for working in the above conditions. As far as

possible, the water lines shall be self balanced without adjustment of valves. Water to be

used for dust suppression will be portable water. The equipment / components selected

by the Contractor shall be suitable for this water quality.

14. Operation logic:

a) All the sprinklers are to be operated round the clock in sequential manner.

b) Auto Feedback to be transmitted to PLC panel for monitoring of the system.

c) Operation of sprinklers starting from 1stsprinkler to 14

thsprinkler one after

another.

d) From HMI panel, operation will be monitored.

Basing on the above system concept & requirement, the system shall be installed and

commissioned including construction of pits in stockyard as per drawing attached.

15. Typical spray coverage diagram is attached for your reference & record.(Annexure-A)

16. Operation & Maintenance of the System for 3 years.

The Contractor is responsible for smooth O & M of the system for 3 years from the date

of commissioning of the system including fulfillment of warranty obligations for 1 year.

Supply of spares, consumables and any other requirement which is required for smooth O

& M of the system is included in the scope of the Contractor.

DR

AIN

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Bill Of Quantity

Supply, Installation & Commissioning of Plain Water Dust Suppression System in CQ1-CQ2 & back up

area of PPT

Sl.

No.

Description Unit Qty. Rate

(in Rs.)

Amount

(in Rs.) excluding

GST

SUPPLY OF GOODS

1 RCC Tank Inlet motorized gate valve,

manual gate valve and drain Gate Valve

and tank outlet gate valve

(a) CCS Motorized gate Valve - 150NB

(interlocked with Level switch)

Nos 1

( b) CCS Gate Valve – 150NB Nos 1

( d ) CCS Gate Valve – 80NB Nos 1

(e ) Float valve - 150 NB Nos 1

2 Duplex filter at the tank inlet / make up

water line - 150 NB (MS with SS filter

element)

Sets 1

3 Pump with motor (1W+1S) and all

accessories of capacity 175m3 / hr and

head 155mWC

Nos 2

4 Water pump inlet & outlet gate,

check/globe valves, recirculation globe/pr

relief/gate valve.

(a) CCS Gate Valve – 200NB Nos 2

(b) CCS Gate Valve – 150NB Nos 2

(a) FCS Gate Valve – 25NB Nos 1

( c) CCS Check Valve – 150NB Nos 2

(d) CCS Globe Valve – 150NB Nos 1

(e ) CCS Globe Valve – 50NB Nos 1

(f) FCS / CCS Pr. Relief Valve – 25 NB Nos 1

(g) FCS / CCS Motorised gate valve - 50 NB at

water pump reciculation line

Nos 1

(h) CI Y strainer - 200NB Nos 2

5 Pr gauge at each pump inlet, outlet and Pr

switch at Common line of pump outlet

and DPS in Duplex filter

(a) Compound Gauge Nos 2

(b) Pressure Gauge Nos 2

( c) Pressure Switch Nos 1

(d) Flow Transmitter Nos 1

( e) Pressure Tranmitter Nos 1

(f) DPS for Duplex filter Nos 1

(g) Flow Switch Nos 14

6 Level Switch for RCC Tank Nos 1

7 Sprinklers Nos 14

8 CCS Globe Valve – 100 NB Nos 14

9 Solenoid Control valve (230VAC) Nos 14

10 HDPE pipes (150NB approximate) as per

working pressure 15.5 bar.

Meter 950

11 HDPE pipes (200NB approximate) as per

working pressure below 10bar.

Meter 50

12 HDPE pipes as per (100NB approximate)

as per working pressure 15.5 bar

Meter 30

13 HDPE pipes as per (50NB) as per working

pressure 18 bar.

Meter 150

14 Fittings for pipelines including bends, tee,

flanges,sockets, etc

Lot Lot

15 Metallick Expanssion below for suction

side of suitable size

No. 2

16 Metallick Expanssion below for delivery

side of suitable size

No. 2

17 Structural MT 8

18 DSS MCC ( Pump starter panel) No. 1

19 Power & Control Cables, cable glands and

lugs, cable tray, cnduit, earthing

Lot Lot

20 Sprinkler Control Panel (PLC based) with

HMI

No. 1

21 JB No. 5

22 LPBS No. 2

23 Other Electrical items, Lighting DB Lot Lot

24 Incoming Power Supply cable (415V) upto

DSS MCC at Pump House

Lot Lot

25 Other left out materials Lot Lot

A. Supply of Goods Rs.___________

EXECUATION

1 Civil

(a) RCC tank as per Annexure-1 including

painting

No. 1

(b) Pre fabricated structure for construction

Pump House as per Annexure -2

No. 1

(c ) Concrete Road (approximate 300mm RCC)

cutting for laying of pipeline through

hume pipe and repiring of damage road

by RCC

Meter 70

(d) Any other civil works if any LS LS

(e) Supply and installation of Submessible

Pump with Bore well and connection to

main pipe (7.5HP, head minimum

36meter, discharge 42cum/hr)

No. 5

(f) Any other civil works if any LS LS

2 Fabrication & Erection and installation of

system

LS LS

3 Testing and commissioning of system. LS LS

B Total of Execution Rs.___________

C TOTAL Supply & Execution Rs.___________

D Operation & Maintenance of the System

for 3 years including supply of all spares

in consideration of warranty obligations

of 1 year

Rs.___________

E GRAND TOTAL Rs.___________

NB.We hereby confirm that the above quoted price is inclusive of all taxes, duties, cess etc.

and all other incidentals like transport, insurance etc excluding GST and a firm landing price at

Paradip Port Trust.