Where the sale of oil used Nutshell filter material (how much money one ton)

Where the sale of oil used Nutshell filter material (how much money one ton); there want to know Nutshell filter performance, Nutshell filter price the customer to contact us. Walnut shell filter size on the impact of oilfield wastewater filtration shell filter (walnut filter) filtration compared with quartz sand, walnut shell filter filter has more prominent advantages: strong adsorption interception capability, hydrophilic Well, anti-oil; water density slightly larger than the backwash easy. Walnut shell filter density than the quartz sand filter light, when the filter backwash tank, not only flush out oil and impurities on the surface of the filter layer, and walnut shell filter canister stirring mechanism also allows the filter through the backwash stirring, turning so the inner filter oil and filter impurities in turn moved to the surface layer with water out, filter cleaning more thoroughly. In recent years, people have oily wastewater walnut shell filter backwash regeneration aspects of a lot of research, but little research on the filtering mechanism, especially the impact of walnut shell filter size for filtration of research is almost blank, in grain Some obvious choice of path errors exist. In fact, the filter size filter influence on the development of filtering technology and a reasonable choice in practical engineering filtered way, has a very important significance. Small walnut shell filter size to guarantee favorable filtered water quality, but may result in shear flow head loss of excessive growth, low dirt holding capacity of the filter layer, filtration cycle is short, the filtration rate is low, small water production and other issues. The particle size is large, it is difficult to ensure that water filtration. General quartz sand filtration using uniform media, uniform media is different from the average particle filter. When a new load of quartz sand, which filter layer is called homogeneous filter layer, the filter is called uniform media, that is, uniform media filter does not require all of the same diameter, but require that the entire filter layer composition conditions are the same from top to bottom, does not appear to meet the uniform media phenomenon backwash hydraulic classification. Since walnut shell backwash regeneration, must be mixed so that the filter bed by hydraulic and mechanical recoil fully fluidized, such regeneration backwash way prone to the phenomenon of hydraulic classification. To avoid this situation, walnut shell filter as much as possible to choose a single particle, rather than meet with quartz sand as homogeneous media can be. In short, the walnut shell filter, the choice of the particle size can not remain in the original understanding, which should attract attention. Walnut shell filter particles are spherical, the same size, then the porosity of the filter layer cleaning the particle filter arrangement with only the relevant, regardless of the particle size of the filter, that is to say, the filter for different particle size The filter layer, the porosity of the cleaning of the filter layer are less, such as porosity quartz sand filter layer is generally about 42%. The actual filter media layer is composed of particles of different sizes, and is not strictly spherical, however, the actual filter bed used in the project, the porosity of the filter layer which basically is about 42%. The actual filter media layer is composed of particles of different sizes, the impact of the size of the particulate filter particulate filter filter layer of the filter layer porosity is insignificant. From the perspective of quality assurance after filtration, the smaller filter size is advantageous. However, smaller particle size filter, to improve the filtration rate, extend the filtration cycle, improve the productivity of water filter layer, slowing the growth of head loss is unfavorable. Therefore, despite the current homogeneous large particle filtration media attention, but the small size media has its advantages, can not be unconditionally emphasizes the use of large particle filter. Select the filter size principle is to ensure water quality conditions, try to choose a larger particle size filter. Filter using a larger particle size filtered water quality problems may occur, may take appropriate way to increase the thickness of the filter layer to compensate. Filter layer from top to bottom on the particle size distribution of media and square, along the flow direction of the filter size from large tend to be small is better, this distribution is the filter size has its advantages. This is conducive to suspended particles than the filter layer into the depths, and, since most of the suspended particles are trapped in the upper part of a relatively large pore size filter layer, will help slow down the growth of head loss. Furthermore smaller particle size distribution in the lower filter, but also help to ensure filtered water. On media uniformity and square, when used filter size is relatively small, too much emphasis on a uniform particle size is not very big significance. Because this filter during backflushing, the filter surface of small particle size, filtration, filter the smaller the average particle diameter of the selected, non-uniformity coefficient can be greater, the greater the average particle diameter of the selected filter, uniformity coefficient to be smaller. Relationship between large diameter and the thickness of the filter layer filter media. Usually the larger the filter size, since the number of unit thickness of the filter and suspended particles smaller contact may require greater thickness of the filter layer. The smaller the particle filter, the thickness of the filter layer may be smaller. In theory, the use of larger particle size filter, the filter can be taken to increase the thickness of a method to ensure that filtered water, but the filter size is too large, dirt-containing layer is too deep, backwash difficult, and causes the canister height high, there is not much practical significance. Currently even larger diameter filter size mostly in the 0.8--1.2mm, uniformity coefficient k80 between 1.1--1.3, filter thickness of about 1m. I plant produced by the filter shell with high hardness of pecan shells as raw material, after screening, after impurities, crushing, cooking and a series of steel. Nutshell filter, also known as walnut shell filter, the appearance of brown granular, mainly used in highly automated control water filters, water filters, filters, etc. into the well. Oilfield, oil refineries, petrochemical projects and other environmental projects essential oil-water separator water purification materials. Common specifications: 0.5-1.0mm 0.5-0.8mm 0.6-1.2mm 0.8-1.6mm 1.0-2.0mm 2.0-4.0mm; For other specifications can be another processing; characteristics: hydrophilic, oil-bearing waste water filtration fast to achieve the effect of oil-water separator; wear resistance, compression and strong, good adsorption capacity, does not contain any chemical composition, non-toxic and harmless; easy to regenerate, is environmentally friendly media, the amount of savings that is supplemented 5-10% per annum can. Nutshell filter technical indicators: oil removal efficiency: 90-95%; backwashing strength: 25m3 / m2.h; suspended solids removal efficiency: 95%; backwash pressure: 0.32MPa; filtration rate: 20-25m / h ; maintenance mode: 5-10% annual supplement; Density: 1.25g / cm3; bulk density: 0.8g / cm3. (A) Features 1, with a wide and microporous contained dirty power, oil and suspended solids removal. 2, has a multi-row and different particle sizes, the formation of deep bed filtration, enhanced degreasing capacity and filtration rate. 3, has a hydrophilic lipophilic and appropriate proportion backwash, regeneration and strong. 4, hardness and corrosion by the special treatment is not easy, do not replace the filter, add only 5-10%, reducing maintenance costs and maintenance time and improve efficiency. (B) Use 1, oily wastewater treatment: to oil and suspended solids. 2, industrial oil industrial water treatment: to oil and suspended solids. 3, domestic water and industrial water treatment: removal of suspended solids, and improve water quality.