Bone porcelain blank 09

In addition to iron technology of magnetic separator, which has two kinds of dry method and wet method. Dry method commonly used in the separation of the iron in the broken after powder, the wet method used in the iron in the mud. Commonly used dry iron has: electric wheel drum magnetic separator, magnetic separator, the roller belt magnetic separator and chute type magnetic separator, vibration because of the material and pole ask gaps exist generally, dry iron real effective magnetic field strength is low, can only be effective for thin layer of material flow in the strong magnetic material, magnetic separation efficiency is low. General ceramics ( Bone China) Enterprise, with high strength magnet stick homemade chute type vibration in addition to the iron dry iron more effectively. Wet wet filter commonly used in addition to iron type magnetic separator. Bone China iron iron removal efficiency and the mud density and flow rate, fineness and so on. In order to improve the effect of iron is level 3 in addition to iron, namely three iron remover in series, can effectively remove the iron impurities, improve whiteness bone porcelain products. Iron remover to regular cleaning, or in addition to iron effect is greatly reduced. Bone China sieve in ceramics ( Bone China) In the process of material selection and processing, sieving is also one of the indispensable. Ceramic ( Bone China) Enterprise generally USES vibrating screen or ordinary sieve sieve. Bone China porcelain ( Bone China) Blank vibrating screen with 180 mesh, ordinary sieve generally use 120 ~ 150 mesh. Especially pay attention to the screen in the process of production inspection, in the process of ball mill in the mouth and grinding have some material is not easy to be ground between fine and coarser, if there is a leak, screen will cause product defects such as cracks or Fried porcelain, brown eyes, shall regularly check the screen. Bone China bone China mud dehydration using wet grinding block, get the mud water often exceeds the requirement of forming. Usually filter method or a spray drying method is used to eliminate excess water. For mud plasticity material and parts of grouting with mud, to good to grinding and sieving after iron mud dehydration processing. Commonly used water treatment filter press mud. Bone China bone China mud after filter water generally fell to 22% ~ 25%, moisture content is about 20% can be obtained even of mud cake can be used molding. Bone China porcelain ( Bone China) Mud filter with plate filter press. Filter, water flows through the mud. Factors that influence efficiency of mud filter mainly has the following points. Bone China ( 1) Pressure pumping pressure is proportional to the pressure filtration rate, usually based on requirement of mud cake moisture content to determine the pressure, usually is 0. 8 to 1. 2MPa2。 Bone China ( 2) Pressure mode generally with low pressure at the beginning of the filter, so as to avoid mud intergranular reduced capillary and the filter cloth hole plug. Wait until the bottom of the filter cloth attached to a layer of mud cake to high pressure. Pressurized 0 in about half an hour early. 3 to 0. 5 mpa, then rise to 0. 8 to 1. 2MPa3。 Bone China ( 3) Bone China mud is the temperature of the liquid viscosity with temperature increase and decrease. So the mud of heating to proper temperature will increase quickly squeeze mud rate. Usually heat the mud and 40 ~ 60 ℃. Bone China ( 4) Bone porcelain clay material properties of grain more fine, the greater the viscosity of the bone porcelain blank pressing mud will be more difficult. Bone China commonly used filter press is intermittent operation. Bone China ( Bone China) Mud every pressure filtration cycle takes about 1 ~ 1. 5h。 Pressure as high as 7. 5 mpa pressure filter press filter once only 18 ~ 45 min ( Including discharge cake 10 min) 。 Bone porcelain pug and stale of some varieties bone porcelain products need to use plastic forming method forming, therefore, must be the mud materials for processing, and make it reach the plasticity. Bone China & ndash; The bone plate to be continued. 。 。 。 。 。