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人工砂成为新型建筑用砂 为适应新形势的发展而出第三代制砂机

文章出处:责任编辑:admin人气:发表时间:2014-03-18 11:01

人工砂成为新型建筑用砂 为适应新形势的发展而出第三代制砂机

  •        人工砂成为新型建筑用砂,为适应新形势的发展,2002年2月1日起实施的《建筑用砂》首次增加了人工砂种类,确定了人工砂的定义、技术要求和检验方法,规定了凡经除土处理的机制砂、混合砂都统称为人工砂。提出了混合砂要执行人工砂的技术标准和亚甲蓝试验方法,为解决河道挖砂的废石处理找到了出路,为合理利用石粉打下了技术基础,同时,保证了人工砂的质量。随着混凝土技术的迅速发展,现代混凝土对砂的技术要求则越来越高,特别是高强度等级和高 性能混凝土对骨料的要求很严,能满足其要求的天然砂数量越来越少,甚至没有,为人工砂的发展开创了新的局面。
         目前,国内人工砂生产主要有3种形式,一种是在河道里用卵石生产机制砂,或配以少量天然砂生产混合砂,这多属于中型企业(即年产砂石50万吨左右),质量有好有差,差别较大,数量也在几百家左右;一种是开矿产石的同时专门生产人工砂,这多属于大型企业(即年产砂石100万吨以上),质量较好;在一种是利用各种尾矿生产的,其中主要是各地生产石灰石碎石后的石屑或石粉,经过简单再加工和筛分,或直接利用,这多属于小型企业,质量有好有差,差别很大,数量达近万家。我公司自主研发了各种机制砂制砂机,冲击式制砂机、第三代制砂机、第五代制砂机、立轴制砂机等多种制砂设备。

          我国矿山机械行业和世界先进国家相比存在着差距,而这些差距也正是我们的巨大进步空间,为了能早日达到世界先进水平,只有认清差距,从差距处下手,不断提升自身水平才能不断提高我国矿山机械的综合能力。让我们先分析下我们国家和世界先进国家在矿山机械行业方面的差距吧。从目前来看,国内矿机行业的科技基础并不厚,与矿山机械领域一直以市场换技术作为提高产品技术水平的途径还不相衬,并要面对国外竞争者,尤其是国外竞争者在国内投资办厂的严峻形势。因此,国内矿山机械企业的创新意识被迫被激发。
    国内领先的矿山机械制造商上海建设集团机械有限公司,企业经过近年来的快速调整,在面对国内外创新竞争对手的压力下,经过几年的发展,上海建设已经建立、补充和完善了优势领域的应用研发基地,展开了以破碎机、制砂机等为主要产品、制造工艺和工艺流程技术的应用技术研究工作。上海建设经过开拓创新途径,实践研发的新产品,可以满足矿产资源对矿山机械提出的更具体、更明确的创新内容,公司近年来的研发成果:履带式移动破碎站、轮胎式移动破碎站、反击式破碎机、颚式破碎机、圆锥破碎机、液压圆锥破碎机、新型制砂机、离心冲击式破碎机、第五代制砂机等设备均是节能型,节水型,综合利用型,环保型的矿山机械产品,并可以给设备操作者创造安全舒适的工作环境 。

    英文说明:Artificial sand, sand become new building for adapt to the new situation of development, 2002 feb 1st, the architectural sand "first increased artificial sand types, determine the artificial sand definition, technical requirements and testing method, provides all the mechanism of soil treatment except sand, mixed sand commander-in-chief called artificial sand. This paper presents a new hybrid sand to perform artificial sand of technical standards and methylene blue test method for solving the river to dig sand stone processing waste, find the way out for the rational utilization of limestone laid the technical foundation, at the same time, ensure the quality of artificial sand. Along with the rapid development of concrete technology, modern concrete the technical requirements for sand is more and more high, especially high strength grade and high performance concrete to aggregate demand is very strict, can meet the requirements of the natural sand quantity is less and less, not even for the development of artificial sand blazed a new situation.
    At present, the domestic artificial sand production basically has 3 kinds of forms, one kind is in the river sand production mechanism with pebbles, or with a few natural sand production mix sand, this is a medium-sized enterprise (i.e. annual sand 500,000 tons control), quality good, difference is bigger, directs Numbers have hundreds of left and right sides; One kind is open mineral stone while specializing in the production of artificial sand, this is the large enterprises (namely sand 100 tons annual), better quality, In one is using various tailings production, mainly producing all over the gravel limestone after stone, stone cuttings or by a simple reprocessing and screening, or using directly, it belongs to a small enterprise, quality good discriminating, difference is very big, amounted to nearly 10,000. Our company self-develops the various mechanisms sand system, the impact of pressure-blasting machine type pressure-blasting machine, the third create pressure-blasting machine, fifth create pressure-blasting machine, vertical shaft system of sand machine and so on many kinds of sand blasting equipment.

    Our country mining machinery industry and world advanced nation than there is a gap, and the gap is our tremendous progress in space, in order to will soon reached the advanced world level, only recognize gap, gap office assistant from their own level, and constantly improve our country mining machinery can improve their comprehensive ability. Let us first analysis of our country and world advanced nation in mine machinery industry difference! Judging from the current domestic mineral machine industry, the scientific base is not thick, and mining machinery field has been taking market change technology as the way to improve product technical level is not look line, and will face in foreign competitors, especially foreign competitors in the serious situation of the domestic investing in factories. Therefore, the domestic mining machinery enterprise innovation consciousness was forced to be inspired.
    The domestic leading mining machinery manufacturer Shanghai construction group machinery Co., LTD, the enterprise after years of quick adjustment, in the face of domestic and international innovation rival pressures, after several years of development, Shanghai construction has been established, complement and perfect the advantage field of applied r&d base, launched in crusher, pressure-blasting machine, and other key manufacturing products, manufacturing process and process technology application technology research work. Shanghai construction through innovative ways, practice research and development of new products, can satisfy the mineral resources of mining machinery proposed more concrete, more unambiguous innovation content, of the company in recent years of achievements in research: caterpillar mobile crushing, LunTaiShi mobile crushing, impact breaker, jaw crusher, cone crusher, cone crusher, new-type hydraulic system pressure-blasting machine, centrifugal impact crusher, fifth create sand machine etc, water-saving equipment all is energy-saving, environmental protection, comprehensive utilization type of mining machinery products, and can give equipment operators to create a secure and comfortable working environment.

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