Vibrating screen dry oil centralized lubrication system

Centralized lubrication system 2020 - vibrating screen dry oil 05 - 15 Wang Lan ( Nanjing integrated iron and steel co. , LTD. Motor) Due to the particularity of vibrating screen work form to supply for the bearing grease to the right. Vibration trouble much grease supply, vibrating screen, bearing calorific value is big, the temperature rising fast; Grease supply less, shock, vibration bearing heating, wear faster. Therefore, should choose a kind of bearing for vibrating screen can timing quantitative oil, oil is adjustable, stable and reliable work of lubrication and lubrication equipment. Cultivation of ironmaking new factory of 180 m2 sintering system vibrating screen is originally used THRH - bearing lubrication system Ⅱ type dry oil lubrication device, the device with timing quantitative way to oil lubrication points, overcome the traditional single and double line centralized lubrication device cannot be a single point of control and can't know exactly what the lubrication oil supply situation, etc, the actual effect of using basic satisfaction, but also has a lot of need to improve. 1, the existence question, 1) , excessive lubrication sintering system, a total of 6 sets of vibrating screen is divided into two production lines, two production lines can be run at the same time, also can only run 1 of them. 6 sets of vibrating screen is made of 1 lubricating oil supply, when only one production line is working, don't work of vibrating screen can't stop the oil supply, caused by excessive lubrication. ( 2) Lubrication system, lack of interlock function without interlock function, impossible to implement automatic vibrating screen host device and lubrication system synchronization. ( 3) , can't accurate oil lubrication points of lubricating oil supply is controlled by PLC through the length of the solenoid valve open time to control, and lubricating oil liquid is influenced by many factors such as temperature, pressure and oil, electromagnetic valve to open the same time, in the amount of lubricating oil supply difference, difficult to achieve the purpose of accurate fuel supply. ( 4) , maintenance inconvenient way solenoid valve connection is unreasonable, when a solenoid valve need dimension inspection, need to dismantle the whole tank of pipeline, and repeatedly remove easily to pipe of the pipe joint leakage. ( 5) Lubrication system operation, operating the inconvenience display part adopts TD400 text display, display content, less cumbersome operation. Manual lubrication operation is not convenient. 2, retrofit scheme at the end of 2009, the factory of the lubrication system technical reform. ( 1) Independent lubrication control system adopt chain line of two groups, respectively to detect the working state of the two production lines, not in the down state of vibrating screen oil supply, avoid excess oil. ( 2) Accurate control to the oil in the oil pump and electromagnetic valve outlet setting volumetric flow sensor. The flow sensor on the traditional constant volume measurement technology, the introduction of pulse transmitter, to complete the measurement information transmission, lubrication system is the important foundation of digital and intelligent. Installed in the lubrication pump discharge volumetric flow sensor, to monitor the lubrication pump discharge flow. Installed in the electric control points and the volumetric flow sensor inside the tank, used to detect the corresponding electromagnetic valve to the bearing lubrication points to the oil, to overcome, such as temperature, pressure and oil change on the influence of oil, accurately control the bearing oil supply. ( 3) Switch board type solenoid valve control points inside the fuel tank, electromagnetic valve, using plate connection disassembly of a solenoid valve, just remove the electromagnetic valve screws can be fixed, don't need to tear open tubing and connectors, to avoid oil leakage caused by frequent loose pipe joint. ( 4) Adopts touch screen after transforming the lubrication system of Siemens SIMATIC OP27 touch-screen input, the display screen to provide 24 system and 24 user-defined function keys and display content, more picture colour is abounded, can display the operating hints and lubrication of the lubrication system all information, the operation is simple and convenient. ( 5) Using intelligent control electric control fuel tank is mainly composed of intelligent bus controller, electromagnetic valve, displacement meter and filters and other components, with the single chip processor as the core, with I/O interface and communication interface. Each tank control points 1 ~ 6 solenoid valve can be controlled to the lubrication oil supply. Systems for each of the electronic control fuel tank number assigned a unique address, by number, to control all lubricating points and testing. Electric control fuel tank to support multiple operating mode, including the scene manually, facilitate the repair and maintenance. 3, in the sintering system vibrating screen bearing lubrication system, draw lessons from the current lubrication and the latest technological achievements in the field of control, emphasize 'intelligent lubrication, accurate and smooth, reliable lubrication' concept, the application of quantitative give oil oil, oil testing and fault diagnosis technology, the performance is advanced. The system USES the fieldbus technology, to control electromagnetic valve for oil, accurate to the closed-loop test implementation according to the volume of oil, can be in the control room at the same time, lubrication pump room and field control points on a variety of tank operation, automation level meet the requirements of realizing unattended operation. Vibrating screen dry oil after the centralized lubrication system, after nearly a year of operation, confirmed that it has good reliability and advanced nature and operability, reform has reached the expected goal. Source: the mining machinery