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      混凝土回收機
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      國外的一體化砂石分離機優勢
          在混凝土攪拌站,砂石分離機已經成為一種配套的機械設備。國內在砂石分離機的研究方面雖然起步較晚,但是也投入了大量的精力,因此逐漸趕超世界先進水平。但是國外在研發方面達到固液分離之后就開始停滯不前,目前一直維持現狀。我們需要討論的是在經濟和使用方面,國內看似相對先進的設備與國外相比,是否占有競爭上的優勢。
          國外的砂石分離機沒有所謂的篩分設備,也就是說更多的是依靠水流來對混凝土進行清洗,然后實現骨料和漿水分離。渣料由進料斗接收后,注入內螺旋滾筒砂石分離機,經過旋轉分離后,漿水混合物由低位排出,砂石等骨料則由高位的移動料器出料,其砂石沒有分離,是混在一起的。分離出來的砂石、石子、漿料互相有夾帶,砂石外包砂、包水泥漿,砂子外面包水泥漿,容易產生結塊。

          國內的砂石分離機在實現固液分離的同時,還對砂石進行篩分,這就需要使用滾筒篩來進行篩分。篩網只要將粒徑相差較大的沙子和石子分開就可以了。這樣分離的沙石不僅非常的干凈,而且從不同的排料口排出,形成不同的堆積料。但是并不是說設備升級的越高,就越符合可持續發展經濟。我們從經濟和使用上來分析的話,回收的骨料在實際的混凝土的生產中所占的比例非常的小,沒有分離徹底的砂石料不僅不會影響混凝土的強度,相反的還會有略微的增加。

          In the concrete mixing station, sand separator has become a kind of form a complete set of machinery and equipment. Domestic in the study of sand separator although started late, but also invested a lot of energy, thus gradually catch up with the world advanced level. But foreign reach after solid-liquid separation in research and development began to stagnate, at present has been to maintain the status quo. We need to talk about in terms of economy and the use of domestic seems relatively compared with foreign advanced equipment, whether to have the competitive advantage.

          Sand separator abroad there is no screening equipment, that is more depend on water to wash, concrete and aggregates and water separation. In the slag material consists of feed hopper, after receiving injection screw roller sand separator and after rotating separation, water mixture by low discharge, such as sand and gravel aggregate mobile device by high discharging, the sand, no separate are mixed together. Isolated each other have entrained sand and gravel, slurry, sand, cement, sand and gravel outsourcing sand slurry outside bread, prone to agglomerate.

          Domestic sand separator in realization of solid-liquid separation at the same time, also carried out on the sand screening, it will need to use the drum sieve sieve. Screen as long as separate size large difference of sand and gravel. Such a separation of sand is not only very clean, and from different discharging mouth eduction, form the accumulation of different materials. But is not to say that the equipment to upgrade the higher, the more accord with the sustainable development of economy. We came up from economy and the use of analysis, the recycled aggregate of concrete in the actual production of the proportion is very small, not the application of the thorough separation will not affect the strength of concrete, instead there will be a slight increase.

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