Geregistreerd op: 09 Mei 2018
|Geplaatst: 22-08-2018 09:00:01 Onderwerp: Youth Daily reporte
|Reasonable structure makes crusher efficient
The two cone shape of gyratory crusher are in steeply inclined Ondrej Palat Jersey , the movable cone is erect frustum cone ,and fixed cone is headstand frustum cone, which is mainly used to magnify the feeding end. The two cones of medium and fine cone crusher are both gentle dip erect frustum cones, and between the two cones, there is a certain length parallel crush section (parallel band), which is used to control the granularity of product, for the design of medium and fine crusher is based on the quality and capacity of crusher.
Impact crusher main shaft assembly is composed of bearing seat, main shaft, bearings and other components.
Impact crusher impeller is a hollow cylinder made of special material, it is mounted on a spindle assembly end head, cone sleeve and binding transfer torque, high rotating speed impact crusher impeller is the key components, the material enter into the impeller from the upper wheel feeder central feeding tube, central cloth cone allocate to the each emission stream crossing on average, Head cast material is equipped with special material and can be replaced.
Impeller material will be projected out when it is accelerated to 6075 M s, it first form an impact with waterfall materials, and then hit the eddy lining and lining again. A channel plate is provided between the conical cap and polishing material, protecting impeller from wearing.
Grinding and classification
In the ore mining factory, grinding operation is falling behind the crushing processing. However, this operation continues crushing processing to ore is an important part of the ore separation. The quality of the grinding product has direct impact on the level of the choosing index. The combination of grinding machine and classifier grinding process is called a ore-milling classification process. The grinding process should make its final product size up the following operation needs. Besides, the grinding process should be simple, flexible and has certain adaptability. The main grinding process equipments are ball mill, grate ball mill, wet grinding machine, Raymond mill, autogenous mill, semi-autogenous mill and spiral classifier, etc.
Qatari Rayyan's Rodrigo Tabata celebrates during the AFC Asian Champions League group D football match between Iran's Persepolis FC and Qatar's Rayyan at the Jassim Bin Hamad Stadium in Doha， capital of Qatar， March 14， 2017. Qatar's Rayyan won 3-1. (XinhuaNikku)
Beijing police said they plan to engage more residents, including delivery men, taxi drivers and security guards, for them to serve as informants on drug-related crimes. "We plan to publish a series of photos Friday to teach Beijing residents how to identify drug use paraphernalia and how to spot suspicious drug dealers," Xu Zhigang, a narcotics police officer from the Mentougou district public security bureau, told the Global Times Thursday.
One photo shows a delivery man discovering a meth pot in his client's apartment when he delivered the package. A second one shows a resident spotting an opium poppy plant on his neighbor's balcony. And still another one shows a suspected drug dealer offering candies and illegal drug-tainted cigarettes to students outside a school.
Other photos showed residents calling the police after seeing opium poppy plants at a resort, and netizens reporting to the police after they saw someone allegedly selling illegal drugs on social media.
The photos are based on true stories from previous cases, according to Xu.
"Apart from those mentioned in the photos, we also received information from drug addicts," Xu told the Global Times, adding that police would consider a more lenient punishment for them.
The photos were revealed after community whistle-blowers, dubbed "people of Chaoyang district" by netizens, gained fame on social media for tipping off the police on drug-related crimes involving celebrities since 2014.
Beijing police later said that the "people of Chaoyang district" include volunteers who help maintain security and patrol teams in communities composed mostly of retired seniors.
"People of Chaoyang district" has since become a buzzword, with Chinese netizens saying that it resembles top intelligence agencies like the CIA, the KGB or MI6.
"We are trying to promote the concept of 'people of Chaoyang district' citywide, and also attract more people to join the group by publishing these photos," Xu said.
Beijing police have received 3,000 tip-offs from residents since September last year, up four times compared with the same period in 2013, the Beijing Youth Daily reported.
According to Xu, many residents provided information to the official social media accounts of Beijing police on Weibo and WeChat and are all valued even if some may not directly help solve a case.
Since 2014, Beijing police have detained at least 14 celebrities on drug charges, including Jaycee Chan, son of Hong Kong movie star Jackie Chan.
By the end of 2014, China had 2.96 million registered drug addicts, but authorities said they believe there are over 14 million drug users in the country, according to the China National Narcotics Control Commission.
NANNING, China, April 12 (Xinhua) -- The Environmental Protection Bureau of Nanning released a plan to guarantee a safe environment, as the 45th World Gymnastics Championships will be held here in October.
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