How to deal with the backlog of rock powder in the mine vibrating screen, anti-blocking screen
Because the shaft coupling of the mine vibrating screen is connected by spline, the vibration exciter generates the shaft string quantity during operation, and the spline part needs to be well lubricated. Generally, oil is injected every 1200 hours of operation. Particle density The density composition of the material affects the screening process. For example, when there are many large gangues in the material, the gangues live in the lower layer during the screening process, which will affect the penetration of fine particles to a certain extent. However, this impact is not prominent. Generally, the selection of the air volume of the vibrating screen dust collector depends on experience or previous equipment. For example, in the same working condition, the air volume should be estimated based on experience. If there is such a device before, select a larger or smaller device according to the treatment effect.
How to deal with the backlog of rock powder in the mine vibrating screen? The anti-blocking screen mine vibrating screen vibrator rotates at a high speed, which produces axial offset and torsion during operation. Therefore, the lubrication of the vibrator is particularly important for the maintenance of the screen machine. According to the operating time, oil is generally injected once a week, and the amount of oil added is generally 300-600mL. Grease uses 2# lithium-based grease in winter and 3# lithium-based grease in summer.
Then according to the filter area, the air volume of the dust collector can be calculated. Note that after calculating the wind speed of all the air outlets, it is required to add 3% to 5% of the air leakage supplement. In addition, the air volume of the dust collector can be determined according to the size of the wind hood. There are also different air volume calculation formulas depending on the hood. The size of the wind hood is determined according to the area of the vibrating screen.
How to deal with the backlog of rock powder in the mine vibrating screen? The anti-blocking screen mine vibrating screen can determine the air volume of the dust collector according to the size of the air hood. The wind speed should be selected according to the material to be filtered by the vibrating screen. The larger the proportion of the material, the larger the particle size, and the higher the viscosity, the higher the inlet wind speed, such as sand and gravel screening, the higher the specific gravity of dust, 1.4-1.7m/ Min wind speed, relatively lighter than chemical materials, etc., should choose a lower wind speed, the shape of the wind hood: general air-tight wind hood, wind speed is 0.3, semi-sealed wind hood is 0.5~1, open wind hood is 1 ~2. The distance between the wind hood and the dust source, the ambient wind speed, and the station operation will also affect the inlet wind speed design.
The effect of material properties on the screening effect
As many equipments still use calcium-based grease for lubrication, you must pay attention to the distinction when lubricating the exciter of the screen machine. The exciter cannot use calcium-based grease, otherwise the exciter will heat up during operation and cause an accident. . Generally, the exciter is used for about three months, and its interior is cleaned with an oil pump, and lubricating grease is added after cleaning.