Analysis of material properties and pressure flotation dehydration effect

1.The higher the filtration rate of the material properties affect the flotation process in the filtration and dewatering aspects of pressure filtration, and usually requires faster, within a short period of time you can into a cake.After a number of studies show that the flotation concentrate under 0.3MPa pressure difference, the fastest time into cakes need 6s around the slowest, only 10s, and once into a cake on the process difficult to adjust.Is due to the pressure of fast filter the reasons of Flotation Concentrate changes in material properties is extraordinarily sensitive.Material density, particle size distribution, slurry concentration, viscosity, sedimentation rate and other characteristics of a great influence on the production capacity of the flotation machine.Therefore, the different materials in the same conditions of pressure filtration process, the production capacity will also appear very different.Precisely because of the effect of different materials in the pressure filter, so the capacity of a material under pressure filtration conditions, must go through a semi-industrial tests to be sure.This has been proved by the foreign and domestic numerous experiments and production practices.Before the selection of the pressure filter models, the user must put forward indicators of product water, and to be treated coal samples tested to determine the host’s production capacity, filter area and the number of.So as to ensure the best investment to get the best benefits.

  Two.The impact of the working pressure working pressure is an important parameter affecting the pressure filtration.Filter theory and practice have proved that the higher the pressure on both sides of the filter media, the lower product water, the higher the productivity.Design value of this parameter, the foreign, there are two: one is 0.3MPa, the other is 0.6MPa.Domestic in the design, select for 0.45MPa (this is in China coal mine air compressor, a pressure rating).According to the findings of the domestic years, domestic and some slime 0.3MPa pressure filtration, water is still more than 20%, to reach the design target; differential pressure up to 0.4MPa, you can meet the requirements.Pressure if the water reduces the rate is very small, the equipment cost has Jaw crusher supplier been significantly increased, such as pressurizing the silo wall thickening, the compressive strength of the filter plate to enhance the allocation of head office seal level to improve the low pressure fan and high pressure pressure rating of the fan and seals to improve.Of course, for a special performance of the material, but also to improve the design pressure.The determination of the actual working pressure, directly related to the grade of low pressure fans and high pressure air pressure.Low pressure fan supply pressure filter, high pressure air is the air intake valve of brick making machine the supply of the host, sealed discharge device in the ring and pneumatic control valve.The high pressure air and low pressure fan pressure difference between the 0.5-0.8MPa.Pressure rating of the fan selected will enable the increased cost of equipment; the lower, less than the  alicey999 product water design requirements, the more difficult to remedy.Filter material to pressurize the test, can determine the working pressure to achieve the required product moisture, but also informed of the material when the pressure filter air consumption, low-pressure fan for air flow can be determined.ball mill:http://www.china-xingbang.com/

  Different materials, air consumption when the pressure filter is a big difference.The content of coarse material under normal circumstances, a long time, air consumption is high; the feed concentration is low, the air consumption; differential pressure the higher the higher the air consumption.But can not be generalized, and sometimes differential pressure increase, the air consumption is not necessarily increased, jaw crusher mainly determined by the material itself features.In general, pressure filtration, air consumption at 40-200m3 / t dry coal between.Close contact with all aspects of the flotation process, so the actual production process should pay close attention to the running of every aspect of the work, to ensure smooth production.Xingbang machinery is specializing in the Cone crusher price production of mining equipment manufacturers, I produced the flotation machine, magnetic separator, grader and other flotation devices at home and abroad have a good reputation and high rating!