Inclined screens for aggregate in concentrator mainly rely on vibration characteristics to complete classification, dewatering and desliming operations. Because the vibrating screen working environment is more complex, continuous work for a long time and bear heavy load, the vibrating screen will inevitably be damaged or even failure. In order to ensure the normal screening operation of concentrator and prolong the service life of inclined screens for aggregate, we need to correctly use inclined screens for aggregate. So in the daily operation and operation process of inclined screens for aggregate, what should we pay attention to?
1. Before starting inclined screens for aggregate, Check the equipment inclined screens for aggregate. inclined screens for aggregate The operator should be familiar with the structure and working principle of the Inclined screens for Aggregate. Before starting inclined screens for aggregate, the operator should be ready to start, check the transmission belt or tire coupling condition, the integrity of the screen and other parts and components. For example, whether the screws and other connecting parts are tight and reliable, whether the electrical components fail, whether the vibrator spindle is flexible, and whether the bearing lubrication is good.
2. inclined screens for aggregate starting and stopping are usually used in crushing and screening process or washing process, and no-load starting and stopping is required. Therefore, operators need to follow the principle of starting against the process flow and stopping against the process flow. When inclined screens for aggregate is started, close the knife switch, connect the line to the power grid, and press the start button to complete the one-time start. inclined screens for aggregate parking are not allowed except for special accidents. When parking, press the parking button to finish.
3. Lubrication of inclined screens for aggregate lubrication mainly refers to the lubrication of vibrator bearings, transmission gears (partially forced synchronous linear vibrating screens) and transmission motors. The lubrication of vibrating screen is divided into grease lubrication and thin oil lubrication. For vibrators with grease lubrication, high-quality lithium grease should be used in the temperature range of -30 to 120° C. Under normal working conditions, each vibrator generally adds 150~200g of grease in 24 days. If the vibrator working environment is bad, it can also be added once every 8h, and it is recommended to use high pressure butter gun oil injection. For vibrators and gears lubricated with thin oil, high quality gear oil can be used. When the ambient temperature is less than 5°C, No.70 industrial gear oil can be used. When the ambient temperature is greater than 5°C, use No. 90 industrial gear oil. The amount of fuel should depend on the structure of the vibrator. When the oil is added to remove the oil level check rod, a small number of oil drops continuously drop the amount of oil to meet the requirements.
4. for the newly installed inclined screens for aggregate, the lubricating oil should be replaced once after 80h of operation, and once every 300 times thereafter. And in winter and summer, because the temperature difference is too great, it is recommended to use lubricating oil with different viscosity. In addition, when filling oil, be sure to clean up around the nozzle of the oil gun and the nozzle of the oil, and do not let dust into the oil cavity. Determine the direction of rotation of the vibrator For a circular shaker, the direction of rotation of the vibrator can be in the direction of the material flow or in the direction of the material flow. When the material flow direction rotation, the speed of the material through the screen surface is faster, which is conducive to improving the processing capacity of the circular vibrating screen; When the reverse flow direction rotation, the speed of the material through the screen surface is slow, the material is prone to plugging, at this time it is necessary to increase the Angle of the screen surface. For self-synchronous linear vibrating screen, the two eccentric mass is generally driven by two motors, the characteristics of the two motors must be the same, the direction of rotation must be opposite. For the linear shaker with forced synchronization, the direction of rotation is not specified.
5. Timely adjustment of amplitude of inclined screens for aggregate In the production process, if the operator finds that the amplitude of inclined screens for aggregate cannot meet the requirements of screening operation, the amplitude can be adjusted in time. for example, if inclined screens for aggregate use block eccentric vibrator, the operator can adjust the Angle between the main and secondary eccentric blocks. The Angle becomes smaller, the excitation force becomes larger, and the amplitude becomes larger; On the contrary, the Angle becomes larger, the exciting force becomes smaller, and the amplitude becomes smaller. If inclined screens for aggregate use are inclined screens for aggregate use, the operator can increase or decrease the counterweight on the flywheel and belt wheel to increase or decrease the vibration screen amplitude. Above are the five key points for inclined screens for aggregate in daily operation. It is suggested to seek professional equipment manufacturers for procurement and operate according to the technical parameters given by the manufacturers. Meanwhile, operators should be familiar with the technical parameters and adjust them according to production changes at any time, so as to ensure the working efficiency of inclined screens for aggregate.
