Hong Kong media said that China's appetite for battery packs for electric vehicles has boosted demand, making global prices of cobalt, lithium and nickel soar. According to the Hong Kong "South China Morning Post" website reported on July 3, in the past two years, the price of lithium (a silver-white metal usually extracted from seawater) has increased by more than 300%. The price of cobalt (mainly as a by-product of mining nickel and copper) rose by 129% last year, and the price of nickel rose by 4.6%, setting a new high in two years. According to the report, China's support for the development of electric vehicles to reduce greenhouse gas emissions is the main reason for the rise in prices of these metals. According to the China Association of Automobile Manufacturers, electric vehicles accounted for only 2.3% of the 30 million cars produced last year. According to Morgan Lai, an analyst at JP Morgan Chase, the ratio may increase five-fold to 12% by 2025. According to reports, most electric vehicle batteries are based on lithium, as well as a mixture of cobalt, manganese, nickel and graphite, which are in great demand. According to reports, JP Morgan Chase's forecast shows that global demand for lithium may increase by 20% by 2025. JPMorgan Chase said it expects nickel demand to grow 11 times between 2017 and 2025. According to the report, analysts pointed out that, similarly, the demand for copper and primary aluminum is expected to increase in the next few years. The report believes that, on the other hand, rising raw material prices are increasingly becoming a concern for Chinese battery manufacturers. China Ningde Times New Energy Technology Co., Ltd. warned in its prospectus for its initial public offering that the company's business may be affected by soaring key commodity prices and the shortage of materials needed. According to reports, Michael Ferguson, an analyst at S&P Global Ratings, said: "One of the main concerns of the market is that the normal demand for electric vehicles will slow down due to the shortage of lithium and cobalt." The increase in volume will benefit mining companies mining cobalt, lithium or copper. purpose Venturi Tube Botou Youjian Environmental Protection Equipment Co. LTD. , http://www.btdustmachine.com
The Venturi Tube (Venturi tube) is divided into the built-in Venturi tube and the inserted Venturi tube according to the structure. Good results have been achieved in the measurement of combustion support, cold wind, gas measurement (blast furnace gas, coke oven gas, converter gas) and boiler primary air, two wind pipe diameter and low flow velocity in the hot blast stove of iron and steel plant. To solve the problems of accurate measurement of various types of gas flow at low pressure, large diameter and low flow rate in existing industrial enterprises. A fluid measuring device with wide measuring range and convenient installation. The unique structural design and data processing methods are based on strict fluid mechanics and are calibrated in the national key wind tunnel laboratory.
It can be widely used in the control and measurement of large diameter fluid in petroleum, chemical, metallurgical and power industries.
Characteristic
(1) the resistance to fluid is small, about 150Pa, so energy consumption is low.
(2) the pressure difference is big, the precision is high, and the measuring range is wide.
(3) good stability and smooth differential pressure.
(4) wide range of application. General gas, flue gas, and blast furnace gas with more impurities will not be blocked for long term use.
(5) easy to install and easy to maintain for a long time.
(6) the front and rear straight sections are shorter than the standard throttling devices, about 1D 1.5D before.
(7) online temperature and pressure self correction integrated structure.