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1. General
1.1 This specification covers general requirements for purchasing mill shell liner of cement mill designed by HANJUNG For cement grinding project.
The Supplier shall guarantee the performance of the equipment to meet all the requirements for capacity and operation described
1.2 Definition
Customer : Plant Owner.
Purchaser : Korea Heavy Industries & Construction Co., Ltd (Hanjung)
Supplier : The party (parties) responsible for supplying all items covered under this specification. During the bidding stage, the term of Supplier should be construed as Bidder.
1.3 The Supplier’s proposal shall strictly meet all requirements specified herein. Any deviations from this specification shall be clearly indicated in the Supplier’s proposal by submitting “Deviation List" with relevant reasons. If the Supplier specifies no deviations in his proposal, the Purchaser's specification shall be applied to all respects of execution of the contract work whether or not specified in the Supplier's proposal or in the Contract.
1.4 Should any conflict occur in this specification, it must be referred to the Purchaser for clarification prior to proceeding the work of the affected equipment and parts
1.5 All the correspondence, information, documents, drawings and any other writing to be issued by the Supplier shall be written in English language only unless otherwise specified.
1.6 Main Project Outline
a) Project Object : 100 MTPH of Cement Grinding Plant including the material transportation (Annual capacity ; 0.7 million MTPY of Cement )
b) Plant Owner : Plant Owner
c) Site Location : Anywhere
2. Scope
2.1 Scope of Supply
The scope of work shall include, but not limited to the followings ;
a) Design and manufacture of shell liner with setting bolt sets to be adapted to the provided mill drawing and specification.
b) Accessories and special tools( if required )
c) 1)Spare parts for commissioning and performance test
2)Spare parts for two years operation (Option. The supplier shall propose
the price for the itemized spare and wear parts with detail specification at
the proposal stage.).
d) Special and maintenance tools required for erecting and servicing the equipment.
e) Preparation of instruction manuals for installation, commissioning
f) Preparation of loading data
g) Transportation to the designated FOB port and integral with Sea-worthy packing
h) Submission of Documents and Drawings.
i) Others as required in the individual equipment specification.
2.2 Out of Scope of Supply
Unless otherwise specified in the accompanying "Equipment Detailed Specification" of individual equipment in Part II, the followings shall not be included in the Supplier’s scope ;
a) Installation and Erection
2.3 Option
a) Spare parts for two years operation (Option. The supplier shall propose the price for the itemized spare and wear parts with detail specification at the proposal stage.).
b) Supervisory service for erection, start-up of the equipment ad on the job training of local workers. (Option. The Supplier to propose per diem rate and expected duration for supervisory service separately at the proposal stage).
3. Design Condition
3.1 Conditions of Plant Site
a) Temperature : Max./Min. = 40 / 0°C
b) Wind : Max. 56 m/sec at 10 meters above ground.
c) Plant Elevation : Less than 1000 meters above sea level.
d) Earthquake : All structures shall be designed to apply Zone II with horizontal coefficient of 0.05 g.
3.2 The quantity of supply
Quantity : 1 set
Weight : 97 tons(Approximate)
3.3 Performance guarantees
1st compartment liner guaranteed lifetime : > 30,000wh*
2nd compartment liner guaranteed lifetime : > 60,000wh*
3.4 Equipment Specification
Type : 1st compartment – rectangular stepped liner
: 2nd compartment – classifying liner
Size : refer to the follow attached drawing.
General ass’y drawing :
Shell liner bolt arrangement :
Average thickness – 1st compartment, 65mm*
2nd compartment, 62mm*
Material : Chemistry – high chrome iron(ab. 12% Cr)*
Hardness – 1st compartment, 50 HRc
2nd compartment, 55 HRc
- item in marked * to be decided by Supplier
4. General Requirements for Equipment
4.1 General
All equipment to be offered shall be of robust design and manufactured and shall correspond to a modern standard of technique. (DIN, BS, ASTM, KS, JIS)
Throughout the project the equipment shall have a high degree of availability in operation and require low maintenance.
The design criteria for equipment, which handles abrasive material, especially in dusty environments, shall be based on heavy industrial application.
All equipment and materials shall be of a standard equal or better than specified herein or as laid in the latest relevant international standards.
4.2 Material Testing
All equipment, materials, welding and fabrication where required shall be tested in accordance with proper standard of ISO, ASTM, DIN, JIS, BS and IEE or its equivalent.
(1) In case of casting, where undesirable and/or invisible inclusions may occur at areas, Ultrasonic or Radio Graphical Tests shall be applied to such points. Heat treatment shall be applied to relieve the stresses in indicated castings as well as highly stressed welded joints.
(2) Superficial cracks shall be detected by the Magnetic Test and laminations and inclusions shall be detected by Ultrasonic and Radio Graphical tests.
Supplier’s works certificates shall be provided for the material supplied and measured values in the various tests carried out according to the selected standards. The works certificates shall also include the chemical analysis and physical values and particular specifications for one or more batch numbers. The Purchaser may require other tests than those specified above and these shall be carried out at the Supplier’s own cost.
4.3 Mechanical Requirements
The Equipment to be supplied shall be new, entirely suitable for the service required and, where applicable, shall be designed and manufactured in accordance with the latest recommendation of the National Standards Institution of the country of origin or equivalent.
4.4 Erection Marks
All identification marks required for recognition and erection purposes shall be painted in durable white paint and, wherever possible, in the two most advantageous positions on the structural member or mechanical equipment component.
4.5 Inspection and Test
All the inspection and test shall be carried out by the Supplier. The Purchaser and Purchaser’s representative shall be entitled, during manufacture, fabrication and preparation at any places to inspect and test the materials and workmanship.
The Supplier shall submit the “ Inspection and Test Procedure “ for the approval of Purchaser by one(1) month after Contract.
The Supplier shall furnish certificate test report of materials and certificates of inspection and test to the Purchaser at request.
4.6 Packing and Shipment
As for the detailed instruction for packing and shipment such as tags, shipping marks and etc, the Supplier shall follow the “ Specification of Packing “ attached herewith in Part I, Annex – I – 1.
4.7 Spare Parts
The Supplier shall submit a complete itemized spare and wear parts specification supplemented by a price list comprising all parts which the Supplier deems necessary to safeguard normal operation of the equipment for two (2) years. But the Supplier shall include the spare parts for commissioning and performance test of the equipment in his scope of supply.
5. Documents and Drawings to be submitted
5.1 General
The Supplier shall submit to the Purchaser the design drawings and engineering data, but will not be limited to, listed in the Annex-I-2 pursuant to the Conditions of Contract and within the time periods defined therein.
5.2 Review and Approval Procedure
When required by the Specifications or any other provisions of the Conditions of Contract, the Supplier shall submit for review and approval by the Purchaser all design, shop or detail drawings, equipment drawings, catalog cuts, data sheets and other engineering data, all of which is referred to the above, pertinent to the Conditions of Contract. Data submitted to the Purchaser will be reviewed and returned to the Supplier with the following comments :
"Approved" : When the data returned to the Supplier has been stamped with "Approved", the Supplier shall proceed with the work indicated on that submittal in accordance with the Conditions of Contract.
"Approved as Noted" : When the data returned to the Supplier is stamped with "Approved as Noted", the Supplier shall make the changes noted on the data and proceed with the work in accordance with the Conditions of Contract. The revised data shall be resubmitted with the changes made.
"Revise as Noted" : When data is returned to the Supplier stamped with "Revise as Noted", the Supplier shall revise the data and resubmit for approval after modification and/or reexamination. The work shall not be proceeded unless instructions to that effect are followed by the Supplier.
“Seen” : When data is returned to the Supplier stamped with "Seen", the Supplier shall proceed with work indicated. Will be used for all documents where approval of the Purchaser is not required according to the Conditions of Contract.
6.3 Annex – I - 3 : Spare Parts List (Format)
SPARE PARTS RECOMMENDATION
(2 - YEAR SPARES)
Customer : P.O No. : Date :
Ultimate User : Scancem International ANS
Equip. Name : Equip. No.
Item No. | Q’ty | Description | Classification | Part No. or Stock No. | Unit w’t (kg) | Total w’t (kg) | Unit Price | Total Price | Delivery /Time |
*Classification : C - Commissioning Spares
I - Insurance Spares, Critical or Long Lead
TY - Two-Year Spares
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