Metso’s modular plant guarantees lower energy consumption in Yantai, China
What has Yantai Zhongjia Mining Industry’s experience been with the newly mounted Metso modular crushing and screening system? We visited Mr. Kong Fanzhong
, Board Chairman of Yantai Zhongjia Mining Industry Co., Ltd. to find out.
From a single crusher to a modular system
Compared with individual equipment, the lump-sum investment in a modular crushing and screening system is much higher. What, then, motivated Zhongjia Mining Industry to try the modular system?
Can you give us a general introduction to your company?
"Yantai Zhongjia Mining Industry Co., Ltd. was incorporated in March 2005 and is a Sino-foreign cooperative enterprise founded by Canadian Majestic Gold Corp and Yantai Mouping Gold Mine. In addition to mining and producing sand and aggregates products, our company is also engaged in prospecting and developing gold and precious metals."
"Our gold mine is an open pit mine and has a daily processing capacity of 6,000 tons of gold ore and an output of 400 tons of gold concentrate. The aggregates produced are mainly supplied for capital construction in the railway, expressway and real estate industry."
When did cooperation between Zhongjia and Metso start?
"Our first purchase from Metso was when our company was established in 2005."
What was your impression of Metso?
"We were quite satisfied with the advantages that Metso’s products brought us and with its after-sales services."
Why did your company select Metso’s modular crushing and screening system this time, as opposed to purchasing a single crusher?
“The modular crushing and screening system we selected this time is customized by Metso according to the actual needs of our projects. The total investment is more than RMB 30 million Yuan, and it includes two separate projects: one involves aggregates production and the other gold ore.
“The aggregates production project is divided into three stages for crushing. The main crushers include one C125 jaw crusher for primary crushing, one GP300S cone crusher for secondary crushing and one GP300 cone for fine crushing. The crushers used for the gold ore project are mainly two HP500 cones, one C140 jaw and one HP100 cone”.
“The change from selecting a single device to purchasing a modular system not only reflects the deeper cooperation between Zhongjia and Metso, it also shows our trust in and acceptance of Metso’s expertise. The long-term cooperation we have built up is what ultimately led to our strong confidence in Metso.”
Benefits up, energy consumption down
How is the new modular crushing and screening system able to meet the demands of your company?
“Instead of simply offering equipment, the customized modular solution supplied by Metso is a complete package. The delivery also included services, from technical design, equipment purchase, implementation and installation to final commissioning, all under the responsibility of Metso. We received a complete crushing and screening system and were able to immediately begin highly efficient production.
“The new plant is operated intelligently by computers that feature simple operation, fast installation, easy maintenance and a small operating profile. Additionally, thanks to the modular design, the plant can be easily dismantled and conveniently moved to other projects. Meanwhile, thanks to its small size and operational efficiency, it is able to realize a higher return on investment, which means the user is
free from worries and troubles.”
How much can it increase the return on investment?
“Compared with similar domestically purchased equipment, the entire system can increase the benefits by 40%, while its energy consumption is much lower.”
How much can it reduce energy consumption?
“By about 20–25%.”
How well has the system been operating so far?
“Since it was put into operation in April, whether in the gold ore project or aggregates production, the entire system has been running very well. By June, although it is still in the trial-run stage, its output already reached the designed capacity of 350 tons per hour. As market demand reaches the peak period, the potential capacity of the system can be fully released so that the actual production capacity will
reach a new high.”
Have there been any failures during operation?
“Yes. However, this was basically an operational problem that is often seen in the breaking-in period, so not a problem of the system itself.”
How about the quality of the aggregate products produced by the modular crushing and screening system?
“The system produces aggregates that are very high in quality, with an even grain size, superior particle shape, and less powder and flakiness content.”
So, will you continue to cooperate with Metso in the future?
“We are going to sign a long-term technical services agreement with Metso so that its rich professional accumulation can provide better technical support for our projects.”
Metso’s modular plant at Yantai features
simple operation, fast installation and easy