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Name: Jiujiu technology   Stock Code: 833824

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Tel:0379-65196583     /     65196588
Email:luoyang-jj@qq.com       jjkj-xsb@lyjj.com    
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Add:139, Fengrun East Road, High-tech Development Zone, Luoyang, Henan

Financial high-tech, to promote the industrialization of the tool for the development of industrial automation to contribute. International leading technology, industry Automation experts in the field of widely recognized.

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The Company Ranked as Henan Engineering and Technological Research Center of Shield Machine Cutter
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In 2010, as a hi-tech enterprise in Luoyang Hi-tech Development Zone, according to 2010 Key Points for Construction of Henan Engineering and Technological Research Centers, we applied for construction of Henan Engineering and Technological Research Center by right of outstanding achievements in technological innovation and advances of science and technology, the honors of Provincial and Ministerial Science and Technology Progress Awards, master of core technology and independent intellectual property right, stronger industrial potentials and dominant position in the industry. Under the collaboration of leaders from all departments and whole staff, the company, through discussion of experts from Science and Technology Department, was approved to construct Henan Engineering and Technological Research Center of Shield Machine Cutter, which plays a crucial role for enhancement of independent innovation, transformation of scientific and technological achievements, construction of innovation team and fostering of science and technology talents. We will be devoted to developing research and development actively and construct the research center as soon as possible to boost development of the enterprise and even the whole industry.
Achievements from National Cooperation Network of Heavy-caliber Engineering Well Construction Technology
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It convenes Technical Seminar regularly; before seminar, members are noticed of key topics and submit theses which are then edited into collected papers for exchange and communication. Over 15 years, it totally convened eight technical seminars respectively in Zhengzhou, Yichang (the Three Gorges), Huangshan, Changsha, Nanjing, Qingdao, Guilin, and Jinan, attracting near 300 members at most. It published eight collected papers totally, including over 200 sheets of papers about 2 million words, which are widely popular with the members and the society. Otherwise, it also organized experts and scholars to write Heavy-caliber Engineering Well Construction Technology and Large-diameter Bridge Engineering Piles which are favorably received by the professionals, and are published several times. At present, our members are initiating to write China Modern Highway Bridge Techniques Series totaled 27 books with contents extensive, and right now, there are over ten books published and launched into the market

ECHNICAL GUIDE

 

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Cement plant crushing limestone wear hammer wear characteristics
The level of silicon content in the limestone chemical composition on the hammerhead service life has a direct impact, the higher the silicon content, the shorter the hammer the life of the best-case scenario is less than 2% of silicon content in the limestone. The other hand, limestone compressive strength of high and low and hammer is closely related to life. The higher the compressive strength, fragile worse, the hammer will be a short service life.
Resolve the four factors affecting the hammerhead life
Crusher hammer: hammer crusher hammer composite hammer crusher, sand making machine, hammer, hammer of crushing machine, crusher, hammer, etc., it's life with the following four factors:
Special conditions of large diameter bored pile construction technology Deep
Xingang Tianjin Binhai New Area on the 4th road tunnel is designed as dual ten lane viaduct piers and foundation due Jinbin Light effects , driveways not normally traverse . It is required to Tianjin - Binhai Viaduct 339 # ( brake pier ) and 340 # ( Shared pier ) pier for underpinning , underpinning φ2000mm using three and six φ1800mm bored bored . Where three φ2000mm bored pile length 90.00m, 6φ1800mm bored pile length 70.00m. Creepage piles located under the viaduct , viaduct bottom elevation of 10.00m ( Taku elevation , the same below ) , ground elevation of 3.00 ~ 3.50m. Just 7.00m clearance from about underpinning and 340 from the original 339 # # pier is only 7.50m ( see Figure 1 ) . After construction of self-balancing method to test pile bearing capacity testing, meet the design requirements .