New reselection equipment

In recent years, domestic and foreign scientific and technological workers have carried out a lot of research on improving the precision of re-election equipment sorting, increasing processing capacity and the joint use of re-election and other processes. The purpose is to use the re-election proces ---MORE---

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The first five batches of recommended catalogs of lithi…

  The recommended catalogue of new energy vehicles is rapidly expanding and expanding at a monthly rate. On June 2, the Ministry of Industry and Information Technology released the fifth batch of recommended catalogues of new energy vehicles. So far, there have been five batches since 2017, inclu ---MORE---

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Application of rice grinder in rice imperfect grain ins…

We know that there are many inspection items in food inspection. In rice, for example, rice testing requires the inspection of yellow grains, disease classes, belly whites, and imperfect granules. To accomplish these tasks, the first thing to start is the use of rice grinders to grind wh ---MORE---

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Experimental study on cyanidation leaching of low-grade…

I. Introduction With the development of gold mining industry, easy to deal with in today's gold resources dwindling, in-depth study of refractory gold ore dressing and smelting technology, development and utilization of such resources has great practical significance. The author of the carbon ---MORE---

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Copper mining method and beneficiation equipment

Underground mining and dressing equipment, the current mining depth is generally 300 ~ 800m, and individual to reach more than 1000m. The development method, according to the topography of the deposit and the ore body shape, scale and burial depth, etc., usually adopts four methods: shaft developme ---MORE---

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What should you pay attention to when rotating the crus…

After the crusher enters the normal crushing work, the following items must be observed and observed during operation: (1) Check the operation, there should be no abnormal knocking sound inside the crusher. Special circumstances should be stopped immediately. The grain size of the ore should not b ---MORE---

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Common desorption method for gold-loaded carbon - high …

The high temperature and high pressure desorption method is to install the gold- loaded carbon in a pressure vessel, and mix the solution with 0.4% to 1% NaOH and 0.1% NaCN (may not), at a temperature of 130 to 160 ° C, at 3.6 to 5.9 kg. Under the pressure of cm 2 , pass the gold carbon layer. W ---MORE---

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