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Smokeless coal filter
1、 Introduction to the principle of smokeless coal filter smokeless coal filter is a pressure type mechanical filter filled with smokeless coal filter
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1Smokeless coal filterPrinciple Introduction Anthracite filter is a pressure type filter filled with anthracite filter materialmechanical filterThe main use of anthracite is to filter, intercept, and adsorb impurities such as oil, organic matter, and sediment in water. Anthracite is a filter material that falls between the performance of quartz sand and activated carbon. Usually smokeless coalfilterFill the bottom with coarse quartz sand particles to improve the water permeability of the anthracite filter. Hangzhou Xinkai Water Treatment is a professional manufacturer of smokeless coal filters. The smokeless coal filter cylinder is arranged with filter materials of different particle sizes, compacted and arranged from bottom to top according to size. When the water flows through the filter layer from top to bottom, the suspended substances in the water flow into the tiny pores formed by the upper filter material, and are intercepted by the surface of the filter material due to adsorption and mechanical flow resistance. At the same time, these intercepted suspended solids undergo "overlapping" and "bridging" effects, forming a thin film on the surface of the filter layer and continuing the filtration process. This is the so-called membrane filtration effect on the surface of the filter material. This membrane filtration effect not only exists on the surface, but also produces this interception effect when water flows into the middle filter layer. Unlike the membrane filtration effect on the surface, this intermediate interception effect is called permeation filtration. 2、 Advantages and characteristics of anthracite filter material Anthracite is carefully selected from deep well minerals and has the highest percentage of carbon content. The anthracite filter material used for water treatment is manually classified, filtered, and washed to reduce irrelevant minerals and ash content, ensuring its suitability for water filtration. It has a good appearance luster, is in the form of polygonal particles, and has strong compressive and wear-resistant properties. Due to the good solid particle retention ability of anthracite filter material, it can reliably improve the ability to remove suspended particles. In addition, its low uniformity coefficient helps to accelerate the flow rate. 3、 Application Fields of Anthracite Filters Widely used in water quality treatment processes before and after production in chemical, metallurgical, thermoelectric, pharmaceutical, papermaking, printing and dyeing, food, and other industries. 4、 Precautions for selecting filter material for anthracite filter The effectiveness of anthracite filter material in the filtration process directly affects the quality of the filtered water. Therefore, the selection of this filter material must meet the following requirements: 1. High mechanical strength, the sum of crushing rate and wear rate should not exceed 3% (by weight). 2. Stable chemical properties, free from toxic substances. It does not dissolve in general acidic, neutral, or alkaline water. Good purification effects can be achieved in various water sources. 4. Reasonable particle size distribution and good specific surface area. The product has a spherical and angular appearance with good glossiness. After three rounds of mechanical vibration screening, the grading meets the relevant technical indicators. 5. The particle size range shall not exceed 3% by weight for particles smaller than the specified lower limit, and 2% by weight for particles larger than the specified upper limit. 6. Anthracite has a high carbon content and strong adsorption and retention ability, so choose anthracite with high carbon content. 5、 Design parameters of anthracite filter 1. Filtration speed: 8-15m3/h 2. Working temperature: room temperature 3. Work pressure:≥0.4Mpa Backwash inlet water pressure: ≥0.20Mpa 4. Backwash compressed air volume: 18-25L/m2. S 5. Filter layer height: 1000-1200mm, expansion rate 40% 6. Backwash strength: 9-15L/m2. S 6. Backwash time: 10-15 minutes 6、 Selection parameters of anthracite filter  Our company specializes in producing smokeless coal filters, which are supplied to major cities across the country such as Shanghai, Nanjing, Guangzhou, Shenzhen, Fuzhou, Xiamen, Chengdu, Chongqing, Lanzhou, Tianjin Nanchang, Wuhan, Changsha, Beijing, Zhengzhou, as well as Southwest, Northeast, and North China regions. We also have freight logistics companies to provide supporting services. |
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