Membrane pump flow: According to the volume of the board and frame filter chamber, the moisture content of the dewatered sludge, the concentration of the sludge into the front of the plate frame, the amount of sludge required to complete the dehydration operation of the plate frame is converted. Then, determine a reasonable feed-in time, for example 2-3 hours. Calculate the flow. Diaphragm pump material: such as ordinary biological sludge, the choice of ordinary polypropylene material, more economical. Other special sludge, according to the specific sludge composition, the choice of diaphragm material. Need to pay attention to the design of the matter: 1, the intake pipe to install pressure-relief valves and small ball valve, easy to check and adjust the diaphragm pump flow and pressure; 2, began to dehydration, the air pressure should be controlled at 2-3bar , When the effluent flow significantly reduced, and then increase the air pressure, will get better dehydration effect; 3, the quality of sludge quenching effect, plays a decisive role; The disadvantages of diaphragm pumps: 1, the pressure can not be increased , Is limited by the air pressure, 7bar to the upper limit; 2, noise and pipeline vibration, especially in the air volume; 3, relative to the screw pump, diaphragm life is short, easy to damage; 4, Usually not too large, most applications in small systems; Advantages of diaphragm pumps: 1, low investment, screw pumps need to be able to adjust the flow device, frequency or pressure regulator valve, but also the need for supporting the pressure sensor; 2, reliable work , Simple, can automatically balance the flow as the filter resistance increases; 3, small footprint, easy to install. 4, low cost, economical and practical
Spherical Roller Bearings
Spherical roller bearings have two rows of rollers that are mainly subjected to radial loads, but also axial loads in either direction. It has a high radial load capacity, which is especially suitable for working under heavy loads or vibration loads, but cannot withstand pure axial loads. The raceway of the outer ring of this type of bearing is spherical, so its self-alignment performance is good, and it can compensate for the coaxiality error.
There are two rows of symmetrical spherical rollers, the outer ring has a common spherical raceway, the inner ring has two raceways inclined to an angle with the bearing axis, has good self-alignment performance, when the shaft is bent or installed differently when the bearing can still be used normally, the self-alignment varies with the bearing size series, the general allowable self-alignment angle is 1~2.5 degrees, the load capacity of this type of bearing is larger, in addition to being able to bear the radial load, the bearing can also bear the axial load of two-way action, and has good impact resistance, In general, spherical roller bearings are allowed to operate at a lower operating speed.
Spherical Roller Bearings,Precision Ball Bearings,High Temperature Bearings,Spherical Roller Thrust Bearing
Hebei Fangqiang bearing manufacturing Co., LTD , https://www.fangqiangbearing.com
