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Semi truck driving through mountain road

Sprinkler air conditioning maintenance method

At the onset of summer, the driver should conduct a thorough inspection and maintenance of his sprinkler, especially the compressors, condensers, evaporators, air conditioning pipes, and electrical lines of air conditioners. When it is confirmed that there a

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Semi truck driving through mountain road

Gold-cobalt-arsenic concentrate treatment method (2)

Note: The content of the raw calcined residue in the decomposition roasting is: 21.98S total; Sso 4 is not; 3.67As; the slag yield is 64.8%. The amount of sodium sulfate added was 10% by weight of the slag. Cinder decomposed firing should be carried out in sulfuric acid roasting lined with clay br

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Semi truck driving through mountain road

Fankou Lead-Zinc Mine Concentrator (3)

The concentrate is dehydrated in two stages, and the final concentrate contains water: lead 11~12%, zinc 12.5%, sulfur 12%. 1984 beneficiation plant power consumption is 63.03kw.h / t, where the crushing 2.53kw.h / t, mill floating 51.35kw.h / t, dewatering, water supply and drainage, tailings 8.9

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Semi truck driving through mountain road

Dust collection by metallurgy

In the process of fire refining bismuth, whether smelting or refining, flue gas dust are generated, wherein the compound of lead, arsenic, antimony, and zinc vapors containing volatiles. In order to protect the environment, in order to recover valuable elements, dust must be collected. First, the

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Semi truck driving through mountain road

Gold extraction and environmental protection

I. Introduction Our country is rich in gold resources of a country. Since the reform and opening up, especially after the 1980s, the annual production of gold in China has increased at an average rate of 10%. In 1999, China's annual gold production reached 169.1t, second only to South Africa,

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Semi truck driving through mountain road

Application examples of thiosulfate gold extraction

When using gold cyanide solution treated ore containing copper, manganese or copper and manganese, because the presence of copper and manganese, severely reducing the precious metal recovery, and increase cyanide consumption, so that the economic indicators of gold in I am in trouble. The gold is a

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Semi truck driving through mountain road

Cummins X15 engine horsepower and black technology

The X15's original model was the ISX15 in the North American market, which is related to the amount of loading and usage. The performance of the X15 is not much different from that of the original ISX15. It is divided into a performance version and a fuel saving version according to the calibr

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Semi truck driving through mountain road

Shanghai Inspection of Hazardous Chemicals

In order to ensure the safety and stability of the Party's Eighteenth National Congress, the Shanghai Security Committee recently organized a joint inspection team to inspect road transport companies and vehicles for hazardous chemicals. The inspection team first inspected Shanghai Zhongshi Ch

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Semi truck driving through mountain road

Basic concepts of temperature meters and quick thermometers

A temperature meter is a physical quantity that characterizes how hot and cold an object is. Fast pyrometers can only be measured indirectly through certain characteristics of the object as a function of temperature, and the scale used to measure the value of an object's temperature is called a

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