Malaysia CNMC 700t/d Gold CIL Project--Leading Mining Development to a New Peak in Southeast Asia

The ore characteristic of this project is simple. After mineral processing experiment the process flow was determined as raw ore grinding to 85% -200 mesh, lime as protective alkali, and add sodium cyanide agitating and leaching. Under the consider that pulp concentration is 40%, lime is 7kg/t, and sodium cyanide is 4kg/t, leaching for 24 hours, the final leaching rate of gold is 93.40%.

Grinding stage uses two-block close circuit grinding and classification, grinding production flows to thickener after screening by dust screen. The underflow is pumped to leaching operation. Through leaching, absorption, carbon lifting, get gold carbon product. The gold carbon products are transported and dealt in gold desorption plant.

E

Design and Research Service

The design and research service of Malaysia CNMC gold processing plant project was responsible by the professional project group from Xinhai Mine Design and Research Institute. The professional project group finished the project experiment and design task in limited time, and defined the process flow and process index according to the ore samples from clients.

P

All-set Equipment

Manufacturing and Purchasing

Equipment manufacturing and mine design were at the same time. Xinhai Mining manufactured and purchased relative equipment to short the engineering period and reduce the cost of project.

C

Commission and Transmission

The installation and debugging staffs from first line of mine production participated in and managed the installation and commissioning of project equipment in the whole process, quickly solved the routine problems in the field civil engineering and installation work, and adjusted the construction scheme in real time. Xinhai Mining finished the installation and commission of CNMC project in high quality during limited time.

M+O

Management and Operation

To ensure the successful operation and to reach predicted recovery rate as soon as possible, the technics of Xinhai Mining trained and instructed the workers in processing plant. So that the workers could be familiar with the operation of processing plant as soon as possible.

• 

  CUSTOMIZED PROCESSING PLANT DESIGN ACCORDING TO EXPERIMENT

  This is the first project under the cooperation between Xinhai Mining and CNMC. According to processing experiment through the sample ore from clients, the process flow and index was confirmed after the comparing gravity separation and all-sliming cyanidation technology.

• 

  COMBINED STEEL STRUCTURE PROCESSING PLANT PRODUCT LINE DESIGN

  During the construction design, the relevant aboveground part of the bunker, platform, design foundation, pool design was designed into steel structure as far as possible, so that in the mine site was very flexible assembly, not only reduced the civil work load and construction time, and reduced investment, but also easy to disassemble and move.

• 

  HIGH-QUALITY AND HIGH-EFFICIENCY OVER PERDICTED INDEX

  Since May 2017, when Xinhai Mining accepted Malaysia CNMC gold project, it put into production in only six months. The origin capacity is 600t/d, but the real capacity is up to 700t/d. The predicted gold recovery rate is 93%, while the real recovery rate is up to 95%, which received a good profit for this project.