The equipment of mechanism sand and knowledge introduce
From;    Author:Stand originally
As domestic demand pull move, each district highway, the investment of the capital construction such as railroad increases increasingly, the arenaceous stone with urgent many need. To protect ecological balance, national proclaimed in writing prohibits excavate of do sth without authorization is natural arenaceous (clear wadi except) . Natural arenaceous do not follow to go up greatly for the quantity demand. Accordingly, the development with arenaceous mechanism mentioned schedule very pressingly to come up. In view of the mechanism arenaceous it is rock after blowing up, classics is mechanical broken or wadi pebble classics is broken and mechanical broken and screening and become, the function such as its intensity is more natural arenaceous advantageous.
On the other hand, some metals and metalloid mine are in mining and treatment process, generation gives a large number of gangue, urgent need is used integratedly, also be the good raw material that produces mechanism sand. Reason production mechanism is arenaceous replace natural arenaceous it is an inevitable trend. Can make many gangue and pebble can be used on one hand, can pass machining on the other hand, it is good that production gives quality, can get used to the need of all sorts of grade concrete.
The mechanism is arenaceous no matter be on physical function or chemical function excel is natural arenaceous. We must stand in strategic height, establish, implement scientific progress concept, enhance sense of responsibility of human environmental protection, develop energetically, popularize mechanism arenaceous device actively. Although the mechanism of our country is arenaceous,the research of technology and equipment and project of research and development start later, progress is slower, artificial sand is used in construction of a few large water conservancy project, its make arenaceous machine crucially many abroad is introduced. Look of advanced level of development of mechanism arenaceous equipment and abroad is fairer than returning existence difference. But we believe, through the effort of period of time, can be overtaken or exceed foreign congener equipment. Still be good in light of the case that from home some mechanisms arenaceous device uses now, be worth take into consideration the circumstances to choose.
Broken stock, the requirement of arenaceous stone industry and mine defeat the demand that worries an industry to differ somewhat. And the company that produces equipment of the aircraft that make sand at present makes an industry take on by mine machinery for the most part, reason must make one understanding to the requirement of arenaceous stone above all.
1. Mine equipment is fine to the grain requirement of broken stock. Generally speaking, to the needle piece the stock of shape is entered grind machine, easier instead by molar. And the requirement of clastic rock and afore-mentioned contrary, to its bead, the requirement of bead class is very strict. Its reason depends on cubic form arenaceous because its take edge, there is the effect of a kind of mutual locking between made grain. And arenaceous successive grading can make space is reduced greatly again. Cubic form is arenaceous at the same time more arenaceous than the circle have bigger surface to accumulate, make bitumen and stock or cement and stock stick the possibility that reduces displacement together.
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