This paper describes some results that CIMR obtained in a study of miner during the first five - year R&D pro. gram of COMRA. The mining system and the miner design principles have been determined. The mechanical- hydraulic collector and caterpillar carrier and miner have respectively been tested on simulated sea bed in a laboratory, and a lot of useful data have been gained. The further research plan of the second five- year R&D program is also reported in this paper.


Founded in 1990 with an approval of the State Council, China Ocean Mineral Resources R&D Association (COMRA) was granted by the United Nation in 1991 a "Pioneer Area" of 150, 000km2 in the C - C zone in northeastern Pacific Ocean for deep sea bed mining, COMRA is engaged in a national long - term project for deep sea bed exploration and development. The first - term plan of ocean multimetalliferous mineral research and development from 1991–2005 was determinated by COMRA. It was divided into three five - year R&D programs. The first five- year R&D program has now been accomplished. The second five - year R&D program is proceeding in China. Through the first five - year R&D program of ocean mining technology, mining system (COMRA 1994) for manganese nodule in China has been decided (See Fig. 1). The collecting lifting and controlling techniques for the mining system have successfully been developed in the stage. This fills a technological vacancy in China and provides a sound basis for the second five - year R&D program of ocean mining technology. Changsha Institute of Mining Research (CIMR) being subordinate to China National Nonferrous Metals Industry Corporation(CNNC) takes part in the research and development of ocean mining technology with the other units in China.

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