石英砂介绍
石英砂是石英石经破碎加工而成的石英颗粒，石英石是一种非金属矿物质，是一种坚硬、耐磨、化学性能稳定的硅酸盐矿物，其主要矿物成分是SiO2，石英砂的颜色为乳白色、或无色半透明状，莫氏硬度7，石英砂是重要的工业矿物原料，非化学危险品，广泛用于玻璃、铸造、陶瓷及耐火材料、冶炼硅铁、冶金熔剂、冶金、建筑、化工、塑料、橡胶、磨料、滤料等工业。
石英砂主要用在污水处理中，用三五年都没问题，只要防止石英砂流失就行，被污染了不要紧，因为污水处理中，污泥可以进行好氧或者厌氧呼吸，将污水中的污染物降解。污水厂尾水通过进水管进入过滤器底部，经布水器均匀布水后自上而下通过滤料层。在此过程中，尾水被过滤，去除了水中的污染物。同时石英砂滤料中污染物的含量增加，并且下层滤料层的污染物程度比上层滤料要高。此时打开位于过滤器中央的空气提升泵，将下层的石英砂滤料提至过滤器顶部的洗沙器中进行清洗。滤砂清洗后返回滤床，同时将清洗所产生的污染物外排。
石英砂滤料主要可分为以下几类：
1.普通石英砂滤料：主要用在污水处理中，用三五年都没问题，只要防止石英砂流失就行，被污染了不要紧，因为污水处理中，污泥可以进行好氧或者厌氧呼吸，将污水中的污染物降解。
2.精制石英砂滤料：用在纯水处理中，在砂滤器中，一般2到3年就要更换，通常被污染后，污染物包住石英砂就不能再起到很好的过滤作用了，只能更换。石英砂滤料通过Iso9001-2000质量体系认证。
石英砂在工业滤水中的细节要求：
工业用水过滤的石英砂滤料需要有一定的标准，才能达到理想的效果。
1.石英砂滤料的破碎率和磨损率之和不应大干1.5％（百分率按质量计）。
2.石英砂滤料的密度不应小于2.55g/cm3。使用中对密度有特殊要求者除外。
3.石英砂滤料应不含可见泥土、云母和有机杂质，滤料的水浸出液应不含有毒物质，含泥量不应大于1％。密度小于2g/cm3的轻物质的含量不应大于0.2％。
4.石英砂滤料的灼烧减量不应大于0.7％。
5.石英砂滤料的盐酸可溶率不应大于3.5％。
石英砂的广泛妙用为各行各业添彩，石英砂是重要的工业矿物，非化学危险品，精致石英砂是可以重复使用的，净化力度较强，净化过的水甚至可以达到引用的标准，一般用于纯水的处理、河水的过滤、矿泉水质的处理等，这是非常重要的原材料；最后就是精制石英砂的通用性能比较好，使用的时候还没有什么限制，如果能够科学使用的话，效果会非常好，如果过了保质期的话，效率将会大大下降。
石英砂的主要应用领域：
1.玻璃:平板玻璃、浮法玻璃、玻璃制品(玻璃罐、玻璃瓶、玻璃管等)、光学玻璃、玻璃纤维、玻璃仪器、导电玻璃、玻璃布及防射线特种玻璃等的主要原料。
2.陶瓷及耐火材料:瓷器的胚料和釉料，窑炉用高硅砖、普通硅砖以及碳化硅等的原料。
3.冶金:硅金属、硅铁合金和硅铝合金等的原料或添加剂、熔剂
4.建筑:混凝土、胶凝材料、筑路材料、人造大理石、水泥物理性能检验材料(即水泥标准砂)等
5.化工:硅化合物和水玻璃等的原料，硫酸塔的填充物，无定形二氧化硅微粉
6.机械:铸造型砂的主要原料，研磨材料(喷砂、硬研磨纸、砂纸、砂布等)
7.电子:高纯度金属硅、通讯用光纤等
8.橡胶、塑料:填料(可提高耐磨性)
9.涂料:填料(可提高涂料的耐酸性)
10.航空、航天等科学领域。
石英砂的提纯工艺及方法：
工业用的石英砂原料品位越来越低，为满足工业上的需求，可以通过选矿工艺提高其品位。主要有以下一些提纯方法:
1.擦洗脱泥。擦洗是指借助机械力和砂粒间的磨剥力来除去石英砂表面的薄膜铁、粘结及泥性杂质矿物和进一步擦碎未成单体的矿物集合体，再经分级作业达到进一步提纯石英砂的效果。
2.磁选。磁选主要用于除去石英砂中的磁性矿物，如可以通过强磁性机除去赤铁矿、褐铁矿、黑云母等弱磁性矿物，而强磁性矿物如磁铁矿则可以通过弱磁选机除去。
3.浮选。浮选用于除去石英砂中的长石、云母等一些磁选无法除去的杂质，进一步提高其纯度。
4.酸浸。酸浸是利用石英不溶于酸(HF酸除外)，而其它杂质矿物能被酸液溶解的特点，可以实现对石英的进一步提纯。
5.微生物浸出。是指利用微生物浸除石英砂颗粒表面的薄膜铁或浸染铁，这是新近发展起来的一种除铁技术。
在人造草坪中铺设石英砂时，使石英砂隐藏在草丝的根部，起到保护草丝的作用。然后在石英砂上均匀的铺撒橡胶颗粒。石英砂和橡胶颗粒的厚度按照不同高度的草坪而定，要求橡胶颗粒低于草丝面约10mm左右。人造草坪石英砂要圆润，才能最大程度保护草丝，而现在一些公司选用一些碎石料甚至黄沙，而碎石料都是尖角的，黄沙带有大量泥石，无疑对草丝都是很大破坏的。
石英砂作为过滤料的应用，是与过滤容器结合，用于截留水中悬浮物胶体等颗粒杂质，从而起到过滤作用。
联系方式
上海易芙环保科技有限公司
联系人：赵敏
电 话：13122614700
Q Q:2650509224
地 址：中国上海奉贤区奉村路258号
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英文翻译
Introduction of quartz sand
Quartz sand is quartz stone crushing processing of quartz grains, quartz stone is a kind of non-metallic minerals, is a hard, wear-resisting, stable chemical property of silicate minerals, the main mineral composition is SiO2 and quartz sand color is milky white, or colorless translucent, Mohs hardness of 7, quartz sand is an important industrial mineral raw material, non hazardous chemicals, widely used in glass, casting, ceramics and refractory, smelting, flux for metallurgy, metallurgy, construction, chemical, plastics, rubber, grinding, filtering material, etc., industrial.
Quartz sand filter can be divided into the following categories:
1. Ordinary quartz sand filter material: mainly used in sewage treatment, with three to five years is no problem, as long as to prevent loss of quartz, polluted not tight, because the sewage treatment, sludge can be aerobic or anaerobic respiration in the sewage, degradation.
2. Refined quartz sand filter material: used in water treatment, in the sand filter, usually 2 to 3 years to be replaced, pollution is commonly, after the pollutants covered quartz sand is not renewed to good filtering effect the and can only be replaced. Quartz sand filter material through the Iso9001-2000 quality system certification.
Main application fields of quartz sand:
Glass: flat glass, float glass, glass (glass jar, glass bottle, glass tube, etc.), optical glass, glass fiber, glass instrument, conductive glass, glass cloth and anti ray special glass as the main raw material.
2 ceramic and refractory materials: embryo material and porcelain glaze, kiln with high silica, silica and silicon carbide and other raw materials.
3: Metallurgical silicon metal, ferrosilicon alloy and silicon Aluminum Alloy and other raw materials or additives, flux
4. Construction: concrete, cementitious materials, road materials, artificial marble, cement physical performance test materials (cement standard sand)
5 Chemical: silicon compounds and water glass and other raw materials, sulfuric acid tower filler, amorphous silica powder
6: the main ingredient in sand casting, grinding materials (sand, hard abrasive paper, sandpaper, emery cloth, etc.)
7 Electronics: high purity metal silicon, communication with optical fiber, etc.
8 rubber, plastic: filler (can improve wear resistance)
9 paint: filler (can improve the acid resistance of paint)
10 aviation, aerospace and other fields of science.
Purification process and method of quartz sand:
The grade of raw material used in the industry is getting lower and lower, which can be used to improve the grade of the mineral processing technology to meet the needs of the industry. There are mainly the following purification methods:
1 scrub and remove mud. Scrub is refers to the use of mechanical force and sand grinding stripping to remove quartz sand the surface of the iron film, adhesive and mud of the impurity in the mineral and further abrasion without mineral aggregates of monomer, the grading homework to further purification effect of quartz sand.
2 magnetic separation. Magnetic separator is mainly used for removal of magnetic minerals in quartz sand, such as through the strong magnetic machine to remove weak magnetic minerals hematite, limonite, biotite, and strong magnetic minerals such as magnetite can by weak magnetic separator is removed.
3 flotation. Flotation is used to remove some impurities such as feldspar and mica in the quartz sand, which can not be removed by magnetic separation to further improve its purity.
4 acid leaching. Acid leaching is the use of quartz is not soluble in acid (except HF acid), and other impurities can be dissolved by acid liquid characteristics, can be achieved on the further purification of quartz.
5 microbial leaching. Is the use of microorganisms in the removal of quartz sand particles on the surface of the thin film iron or disseminated iron, which is a newly developed iron removal technology.
When the quartz sand is laid in the artificial turf, the quartz sand is hidden in the root of the grass, and the function of protecting the grass filaments is played. Then spread rubber particles evenly on quartz sand. The thickness of quartz sand and rubber particles is determined according to the different height of the lawn, and the rubber particles are required to be lower than that of the grass silk surface about 10mm or so. Artificial turf quartz sand should be rounded, to protect the wire of grass to the greatest extent, and now some companies selection some crushed stone and sand, and gravel are sharp, yellow sand with a lot of debris undoubtedly of Jandi are much damage.
Quartz sand as filter material, is combined with the filter container, used to intercept suspended particles in the water and other particles of impurities, so as to play a role in filtering.
contact information
Shanghai Environmental Protection Technology Co., Ltd. Yifu
Contact: Zhao Min
Tel: 13122614700
Q:2650509224 Q
Address: No. 258, No., Fengxian District Road, Shanghai, China
联系方式
上海易芙环保科技有限公司
联系人：赵敏
电 话：13122614700
Q Q:2650509224
地 址：中国上海奉贤区奉村路258号