Supply and Installation of Coolant Infrastructure

The Bloomfield Group is a proud and successful Australian mining and engineering group.

Australian owned and operated, we have been part of the community for more than 85 years and employ hundreds of local people.

Our mining operations are Rix's Creek Mine northwest of Singleton, and Bloomfield Mine east of Maitland.

PWG King & Sons Pty Ltd at Rutherford is our engineering business and provides fabrication, machining and rebuild services to a range of industries including tunnelling and infrastructure, mining, rail and manufacturing. The first biodiesel manufacturer established in Australia, Biodiesel Industries Australia Pty Ltd, is also a member of the group.

For more information regarding The Bloomfield Group please visit the website at: http://www.bloomcoll.com.au

SERVICES REQUIRED:

The Bloomfield Group invites Requests for Tender (RFT) from suitably qualified Contractors for the supply and installation of Coolant Infrastructure at its Bloomfield Colliery & Rix's Creek Sites.

Details and requirements of the RFT are detailed within all documents available for download.

The issue of this request for RFT does not commit or otherwise oblige The Bloomfield Group to proceed with any part or steps of the process.

Scope of Work – Rix’s Creek Mine

The Contractor must construct new Coolant supply and collection tank systems at the Principal’s Rix’s Creek sites. The Works shall include the following:

(a) Supply, delivery and installation of the following at the Principal’s Rix’s Creek North site:

(i) One x 10kL, Double Skin, Polyethylene, Coolant Supply Tank;

(ii) One x 5kL, Double Skin, Polyethylene, Coolant Collection Tank;

(iii) One x 3kL, Double Skin, Polyethylene Coolant Supply Tank;

(iv) All required pipework from coolant tanks to each workshop bay; and

(v) Hose reels for each workshop bay and at fuel farm, including connections to the pipework.

(b) Supply, delivery and installation of the following at the Principal’s Rix’s Creek

South site:

(i) One x 10kL, Double Skin, Polyethylene Coolant Supply Tank;

(ii) One x 5kL, Double Skin, Polyethylene Coolant Collection Tank;

(iii) One x 3kL, Double Skin, Polyethylene Coolant Supply Tank;

(iv) All required pipework from coolant tanks to each workshop bay; and

(v) Hose reels for each workshop bay and at fuel farm, including connections to the pipework.

(c) All tanks must comply with the following items from Australia Standards AS1692:

(i) Each tank must be vented with an appropriate vent size to suit;

(ii) Each tank must not be gravity filled; and

(iii) Each tank’s fill points must be secure, labelled, accessible and sealed to prevent vapour or spill release.

(d) All pipework, pump and coolant handling equipment must be stainless steel, resistant to corrosion and compatible with the coolant as well as clearly marked and supported by the Contractor.

(e) Each supply and collection tank must have an intake and outlet with a minimum size of 2” with a 2” male camlock and cap fitting for transfer of coolant into and out of the tank.

(f) Each outlet and inlet with a camlock fitting must have a collection container underneath the fitting to capture any spills.

(g) Each supply tank system must achieve an approximate outlet flow rate of 60L/min at a maximum of 60kPa at ground level at the outlet of each workshop bay with a ½” dry break fitting. Any variation to this must be raised with and approved by the Principal.

(h) Each collection tank system must achieve an approximate outlet flow rate of 60L/min at a maximum of 60kPa at ground level at the tank outlet.

(i) Each supply hose must be fitted with a ½” Flowmax Dry-break CR-C nozzle.

(j) Each hose reel must be heavy duty, retractable, rated for its use, have a minimum length of 15m and include both vertical and horizontal outlet rollers.

(k) Assembly of all pipework, valving, hoses etc for new tanks into each workshop bay.

(l) Valves must be installed to isolate tanks and bays, with provisions for backflow prevention.

(m) Assembly and installation of all air pipework, valves, brackets etc. from the existing air supply to the coolant pumps at each tank.

(n) Pipework shall be fixed to the supplied and installed bracketry, with a primary preference for welded support brackets to ensure structural integrity. Clamped support brackets with mechanical fasteners may be used only as a secondary option and must receive prior approval from the Principal. All support systems shall utilise Unistrut brackets or an approved equivalent conforming to project specifications.

(o) The bracketry must not be welded to the structure of the workshop without the Principal’s approval.

(p) Installation of all electrical instrumentation and wiring for isolation, tank level and flow measuring and monitoring.

(q) Connection of tank pumps to the existing air services.

(r) Connection of all remaining instrumentation to existing site services if required.

(s) All pumps and pipework connected to the existing air supply must be clearly marked and isolated during installation (using existing compressors).

(t) The pump and coolant transfer system must be an auto-demand operation (with control switch) fitted with an air/water separator, pressure regulator and lubricator.

(u) The pump and coolant transfer system must be installed with one of the following options:

(i) Wireless remote local control switch (“ON”, “STOP”) at each system outlet in each workshop bay, that is fail safe, energised to open; or

(ii) A single local control station inside the workshop near the supply and collection tanks with a pneumatic latch valve switch system (“ON”, “STOP”), air supply (energise) to open; or

(iii) Otherwise, solution to be discussed with and approved by the Principal.

(v) When local control switch is energised and open, air should be supplied to the diaphragm pump.

(w) The energised switch must be on an adjustable timer, in one-minute increments, up to a maximum time of an hour. The exact time is to be discussed and approved by the Principal.

(x) The Control Station must be installed in a lockable steel box made of either stainless steel or steel with corrosion protection. The buttons must be installed in the front face of the box with IP65 rating.

(y) All tanks must be protected with permanent traffic interaction bollards where appropriate.

Scope of Work – Bloomfield (Separable Portion)

If requested, the Contractor must construct new Coolant supply and collection points at the Principal’s Bloomfield site. The Works shall include the following:

(a) Supply, delivery and installation of the following at the Principal’s Bloomfield site:

(i) One x 5kL, Double Skin, Polyethylene Coolant Supply Tank;

(ii) One x 3kL, Double Skin, Polyethylene Coolant Collection Tank;

(iii) All required pipework from coolant tanks to each workshop bay; and

(iv) Hose reels for the workshop bay, including connections to the pipework.

(b) All tanks must comply with the following items from Australia Standards AS1692:

(i) Each tank must be vented with an appropriate vent size to suit;

(ii) Each tank must not be gravity filled; and

(iii) Each tank’s fill points must be secure, labelled, accessible and sealed to prevent vapour or spill release.

(c) All pipework, pump and coolant handling equipment must be stainless steel, resistant to corrosion and compatible with the coolant as well as clearly marked and supported by the Contractor.

(d) Each supply and collection tank must have an intake and outlet with a minimum size of 2” with a 2” male camlock and cap fitting for transfer of coolant into and out of the tank.

(e) Each outlet and inlet with a camlock fitting must have a collection container underneath the fitting to capture any spills.

(f) Each supply tank system must achieve an approximate outlet flow rate of 60L/min at a maximum of 60kPa at ground level at the outlet of each workshop bay with a ½” dry break fitting. Any variation to this must be raised with and approved by the Principal.

(g) Each collection tank system must achieve an approximate outlet flow rate of 60L/min at a maximum of 60kPa at ground level at the tank outlet.

(h) Each supply hose must be fitted with a ½” Flowmax Dry-break CR-C nozzle.

(i) Each hose reel must be heavy duty, retractable, rated for its use, have a minimum length of 15m and include both vertical and horizontal outlet rollers.

(j) Assembly of all pipework, valving, hoses etc for new tanks into each workshop bay.

(k) Valves must be installed to isolate tanks and bays, with provisions for backflow prevention.

(l) Assembly and installation of all air pipework, valves, brackets etc. from the existing air supply to the coolant pumps at each tank.

(m) Pipework shall be fixed to the supplied and installed bracketry, with a primary preference for welded support brackets to ensure structural integrity. Clamped support brackets with mechanical fasteners may be used only as a secondary option and must receive prior approval from the Principal. All support systems shall utilise Unistrut brackets or an approved equivalent conforming to project specifications.

(n) The bracketry must not be welded to the structure of the workshop without the Principal’s approval.

(o) Installation of all electrical instrumentation and wiring for isolation, tank level and flow measuring and monitoring.

(p) Connection of tank pumps to the existing air services.

(q) Connection of all remaining instrumentation to existing site services if required.

(r) All pumps and pipework connected to the existing air supply must be clearly marked and isolated during installation (using exiting compressor).

(s) The pump and coolant transfer system must be an auto-demand operation (with control switch) fitted with an air/water separator, pressure regulator and lubricator.

(t) The pump and coolant transfer system must be installed with either:

(iv) Wireless remote local control switch (“ON”, “STOP”) at each system outlet in each workshop bay, that is fail safe, energised to open; or

(v) A single local control station inside the workshop near the supply and collection tanks with a pneumatic latch valve switch system (“ON”, “STOP”), air supply (energise) to open; or

(vi) Otherwise, solution to be discussed with and approved by the Principal.

(u) When local control switch is energised and open, air should be supplied to the diaphragm pump.

(v) The energised switch must be on an adjustable timer, in one-minute increments, up to a maximum time of an hour. The exact time is to be discussed and approved by the Principal.

(w) The Control Station must be installed in a lockable steel box made of either stainless steel or steel with corrosion protection. The buttons must be installed in the front face of the box with IP65 rating.

(x) All tanks must be protected with permanent traffic interaction bollards where appropriate.

LODGEMENT:

Submissions should be lodged in the electronic tender box by the time and date nominated. Late submissions may not be accepted.

ENQUIRIES:

Tender enquiries should be directed to the Tendering Officer via the online forum.