The equipment is new complete equipment used in gold trade to recover gold from the gold-carrying carbon. It is suitable for desorption and electrolysis of gold-carrying carbon with different grades. The desorption is an intermixture of 1~2% sodium cyanide and 1~4% sodium hydroxide. The desorption solution is pumped to the heater by circulating pump and heated to the desired temperature. Then the solution flows downward to the bottom of desorption column, through the gold-carrying carbon in the column and upward to the top of it. During flowing, the solution strip gold from the carbon (at this stage the solution containing gold is called as pregnant solution). The pregnant solution runs out from the top of the column and into the electrolytic cell. In cell, the gold in the solution is electrically deposited in the steel wool of the cathode frame, and the rest (called as lean solution) flows back to desorption solution cell and recycled.
The gold mud containing rich gold and silver is taken out of desorption cell and transported to the separation section.
Electrowinning Gold,Gold Making Machine,Electrowinning Of Gold,Gold Extraction Machine Changchun Gold Research Institute Co.LTD , https://www.changchunmachine.com
On April 22, Cummins launched the first Beijing International Road Transport Vehicle Exhibition with its BMW Euro III, Euro IV, and European V series light, medium, and heavy-duty vehicle engines.
Cummins has a full range of diesel fuels, alternative fuels, and engines that are perfectly matched to the hybrid system. The power covers 109 to 600 hp, meeting Euro III, Euro IV, Euro V/EEV, and US EPA 07, 2010 emission standards in electronic control technology and The emissions sector has a leading edge. In terms of vehicle diesel engines, Cummins’ product line continues to expand. Currently, Cummins has a total of 2.8 liters, 3.8 liters, 4.5 liters, 6.7 liters, 8.3 liters, 9 liters, 10.8 liters, 11.9 liters, and 15 liters. Medium and heavy vehicle market.
The Cummins B series is a proven and mature model with more than 4 million units worldwide, and the electronically controlled ISB series has sold more than 70,000 units in Europe alone. The new generation of ISL power and torque is further enhanced, and the design features of heavy-duty machine are enjoyed, and the compact structure and lightweight body are maintained while maintaining high durability and reliability. Cummins's third-generation C-series enhanced natural gas engines use highly efficient ECM-controlled fuel systems, sensors, and high-efficiency ignition systems to provide a high degree of digitization with excellent stability and acceleration. The new ISF 3.8-liter light-duty diesel engine and the ISM11-liter state-fourth heavy-duty diesel engine are the latest results of Cummins' local production in China. It inherits Cummins' 90-year technological process and has excellent reliability and durability, and seamlessly connects with the vehicle platform. Good versatility, long operating cycle, low overall cost of use. At the same time, the Cummins ISF and ISM series both landed at the 2009 Shanghai International Auto Show, adding luster to the launch of new commercial vehicles such as the Foton high-end light trucks Omar, Shaanxi Auto F3000 and Valin.
In terms of new energy vehicle technology, Cummins is one of the first engine manufacturers to develop new energy technologies such as hybrid power, alternative fuels, and biodiesel. Its application range covers passenger cars, trucks, ships, construction machinery, railways, and power generation systems. . Currently, Cummins ISB and ISL electronically controlled engines have been successfully used in the hybrid bus markets in North America, Europe, and China, including Beijing, Guangzhou, Hangzhou, and Wuhan.
For the Euro V standard to be implemented in Europe in October 2009, the Cummins ISB and ISL series 4.5 to 8.9 liters of fully electronically controlled ultra-low emission diesel engines have achieved volume support with major European passenger car plants ahead of schedule and can achieve more than Euro V. For strict EEV standards. Since the implementation of the Euro IV standard in 2005, Cummins SCR emission technology has been successfully applied to more than 200,000 vehicles in Europe.
In China, Cummins first cooperated with domestic passenger car companies to introduce advanced engine technology at the early stage of new car development to improve the dynamics and economy of vehicles. In 2002 and 2006, Cummins took the lead in realizing batch matching of Euro III and Euro IV vehicles.
Wang Hongjie, vice chairman of the Cummins (China) Investment Co., Ltd. and general manager of the East Asian engine division, said that Cummins will continue to pursue the "clean power, service China" commitment to face the unprecedented global economic crisis and cooperate with customers to cope with the difficulties, It is Cummins’ current priority.
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