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In recent years , high-speed railway construction in a very important position. Relative to highway construction , the large-scale railway construction investment , long construction period, involving a wide range of driving more effective building materials, construction machinery market . High-speed railway infrastructure in accordance with the investment of 6,000 millions of dollars , the share of civil engineering in which about 55% , which means this year, civil engineering investment will reach 330 billion yuan in China . Among these, the demolition cost about 50 billion yuan , roadbed construction cost about 50 billion yuan , bridge construction cost about 110 billion yuan , the tunnel is about 110 billion yuan . These projects cover a wide range of engineering machinery exception , earthwork machinery, lifting machinery, crushing machines, sand making mechanical , concrete machinery, industrial machinery ... ... Whenever pile -known name on the engineering machinery products , without exception, are involved in railway construction The possible . These products, is using the largest number of earthwork machinery, bulldozers , excavators, loaders , crushers , sand making machine , milling machine and so will play their respective roles . Whether high-speed railway construction and highway construction are not a lot of sand and gravel from the material and the use of concrete aggregate , and under the new operating metrics , on the new concrete and sand aggregate grain shape , size distribution have raised more higher Requirements , can be completely carried out in accordance with international standards . For high-speed railway on concrete aggregate grain shape , size distribution and other new demands , the domestic well-known manufacturer of mining machinery research and development of Henan Red Star Mining Machinery Co., Ltd design and manufacture of high-speed railway , highway aggregate production line finished grading sand and gravel aggregate Reasonable , good grain shape , flat-elongated particle content can be controlled within 3-5 % . Especially for basalt broken , Henan Red Star based on years of experience in site construction and found that basalt production process Jaw Crusher - Cone Crusher - crusher to produce the stone, often flat-elongated high , can not meet the Highway Or high-speed railway construction needs, and crusher wear parts for easy wear , very unfavorable cost control. In response, Henan Red Star Mining Machinery Co., Ltd. Crushing experts found using VSI5X centrifugal impact crusher ( sand making machine efficiency ) can solve this problem. Use VSI5X series centrifugal impact crusher ( sand making machine efficiency ) for technical transformation , the product sheet content reduced to 4.8%, needle , and used alone as the final crusher crushing process than the process line , yield 30-35 %; the addition of the broken plastic surgery procedures and increasing the crushing ratio and processing capabilities, so that production increased dramatically. And the direct use of crusher stone processing as compared to the final crushing process , the equipment wear and tear of wearing parts was reduced by 25 %; due to broken or cone crusher as secondary crusher to use , and efficient vertical shaft impact crusher metal consumption A very small number , therefore , the whole process , the consumption of wearing parts are substantially lower .
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