First, anthracite media properties, materials and applications: Refined anthracite filter water treatment industry is a filtration media. High quality anthracite as raw material selection pieces, powder, sieve and other processing technology; the appearance of shiny, spherical, high mechanical strength, good compression resistance, chemical stability, non-toxic substances, wear resistance; in acidic, neutral and alkaline water are not dissolved. Also anthracite particle surface roughness, good adsorption capacity, porosity (> 50%), particle size distribution reasonable level, better than the surface area, a higher-containing sewage capacity; due to light, the required backwash lower intensity You can save a lot of backwash water and electricity. Utilities in general acidic, neutral alkaline purification treatment, the indicators have reached the Ministry of Construction [CJ / T44-1999] standard. Anthracite is mainly used for ordinary quick filter drinking water and industrial process water as well as various pools shaped, double and three-filter, widely used in a variety of water filters, no valve filter, Siphon Filter, High-speed medium speed filtration water treatment water purification mechanical filter and the chemical industry, metallurgy, thermal power, pharmaceutical, paper, printing, food and other production before and after the process. Anthracite is specially selected minerals from deep wells, with the highest percentage of carbon. Anthracite filter using artificial classification, can reduce irrelevant minerals and reduce the ash content. Also through filtration and washing, make sure it is suitable water filtration purposes. Due to better retention of solid particles, and therefore can be reliably improved anthracite scavenging suspended particles. In addition, its low coefficient of uniformity, help speed up the flow rate. Anthracite is the best filter material is currently widely used. The main source of ore from Shanxi Jincheng and Yangcheng two coalfields. Second, refining anthracite filter chemical properties analysis: Item Unit analysis data analysis data analysis project unit fixed carbon (C)% 85 0.045% copper sulfur% ≤0.05% ≤6 other heavy ash content does not exceed the national drinking water standards volatility% ≤7 ≤2% ≤2 clay content detergency% ≤95 proportion g / c? 1.60 density greater than 1.8g / c?% ≤6% rate% ≤0.35 wear rate% ≤0.35 effective diameter is not broken uniform coefficient (K80) ≤2 Hydrochloric acid soluble rate of 52.65% porosity% ≤0.70% ≤0.98 weight loss on ignition capacity 0.947g / c? Third, Anthracite's role in the filtering process will directly affect the Water filtration, the choice of this filter must meet the following requirements: 1, high mechanical strength, and wear rate of fragmentation rate and should not exceed 3% (percentage by mass). 2, chemically stable, non-toxic substances. In general acidic, alkaline, neutral water, not dissolved. Water filter products manufactured by the Chinese Supervision and Inspection Center measured: Hydrochloric acid soluble rate of 0.68% (ministerial standard of 3.5) in all kinds of water sources can achieve good purification effect. 3, particle size gradation and large specific surface area. Product appearance of spherical and angular, gloss, three times by mechanical vibration screening, grading comply with the relevant technical specifications. Uniformity coefficient (K60) is not greater than 1.5 (Japanese standards), uniformity coefficient (K80) between 1.6-2.0, porosity greater than 50%. 4, the lower limit of particle size less than the specified size range by weight not more than 5%, greater than the specified upper limit of particle size, by weight, not more than 5%. Fourth, packaging and storage: Durable fabric bag, net weight 30kg. Packaging to prevent breakage during transport and storage, in order to avoid leakage or mixed with debris. Not with supporting materials and other media transport stack together.