RAJASTHAN STATE MINES & MINERALS LIMITED
(A Govt. of Rajasthan Enterprise)
Corporate Office : 4- Meera Marg, Udaipur – 313 001,
Phone : 0294 - 2428744,  Fax : 0294 - 2428790
E-mail : project@rsmm.com, website http://www.rsmm.com

Detailed Notice Inviting Expression of Interest

Notice Inviting Expression of Interest (EOI) for “Design, Installation, Commissioning and operation of 70 TPH Grinding Unit for gypsum grinding for RSMML near Villages Barsalpur, Tehsil-Kolayat District Bikaner, Rajasthan” on DBOO basis.

Preamble:

Rajasthan State Mines and Minerals Limited (RSMML) is one of the leading and progressive Undertakings of the Government of Rajasthan. It occupies a place of pride in production and marketing of non-metallic minerals of India. RSMML is multi mineral and multi location enterprise engaged in mining of Rock Phosphate, Lignite, SMS grade Limestone and Gypsum. RSMML is not only the leader in Mining & Selling of Rock Phosphate and Gypsum across the country, but also global pioneer in technology in open cast mining and mineral beneficiation of Carbonate Rock Phosphate. Besides minerals, RSMML has also forayed into Energy Sector and has setup 106.3 MW installed capacity Wind Power Project at Jaisalmer, Rajasthan.

As fertiliser grade gypsum has become an increasingly important input for satisfying demands of an expanding population for agriculture use, RSMML proposes to install a gypsum grinding unit on DBOO (Design, Built, Own and Operate) basis.

Existing Status of the Gypsum Resource:

As far as gypsum resource is concerned, we are producing about 80% gypsum from Ballar group of mines. The main gypsum mines in coming time that will be put in to operation in near future are either in the south or south-west direction of the Ballar group of mines. The possibilities of new gypsum deposits are in the area between Indo-Pak border and cluster of mines existing in Ballar areas. Applied areas for mining lease are near village- Kabarewala,  Akkhusar, Kayamwala and Kabarewala. These Gypsum deposits are having about six million tonnes of gypsum reserves and are situated at about 6-8 Kms from proposed location of grinding unit. 

Process Description

Party is required to design a proper flow sheet matching all the unit operations that are required for efficient operations. The ore properly sized (-150mm) and blended (so as to give +70% CaSO₄  2H₂O) is to be loaded in to a ROM hopper of suitable capacity. The material will be drawn from the ROM hopper through a belt feeder/apron feeder conveyor driven by a variable speed motor to control the feed rate. Party preferably may consider the two stages crushing to achieve the output material of 100% (-) 2mm size and 50% should pass through 0.25mm sieve which is the essential requirement.  Moisture content should not exceed 4% on air dry basis.

ROM Gypsum

Indicative ROM gypsum size distribution is as under:-

Design criteria/Data

For Crushing and Screening the input data are as under:-

Plant is to be designed for 300 working days per year and for 3 shifts per day and 8 hours per shift basis.

Time period of operation

Time period considered is 7 (Seven) years after commissioning.

Pre-Qualifying Criteria

Bidder should have the turn over of Rs 3.00 crores in any last three financial years(i.e 2008-09, 2009-10,2010-11).

For further information, please contact Sr.Manager(R&D) at the above address.

Group General Manager (Projects)

Note: Interested companies are advised to keep visiting our website till due date/extended due date of EOI for corrigendum/addendum, if any, to the EOI.

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