Shell: cement equipment lubrication

Shell: cement equipment lubrication - 2020 02 - 1 characteristics of the cement equipment (16 1) It's big and heavy cement equipment maintenance inconvenience; The main equipment in long-term operation under high temperature, such as belting leather and kiln body of rotary kiln friction temperature of 300 degrees or more; Equipment conditions, dust; System cooling medium water, easy to make oil emulsified by water metamorphism; And waste residue containing corrosive gas, lubrication part pollution extremely easily, make its metamorphism, speed up the wear and tear. （ 2) Equipment belong to the running of low speed and heavy loading, subjected to vibration and impact load, lubrication part for the formation of oil film and maintain, lubricating oil ( Fat) Good extreme pressure antiwear performance. （ 3) Open transmission equipment is more, lubricating oil ( Fat) Have good ability to resist pollution. （ 4) Equipment in the open air or simple protection, lubrication are greatly influenced by seasonal temperature difference. 2 oil application problems, according to incomplete statistics, cement industry for management chaos, improper use of oil equipment damage, accounts for over 40% of the total equipment accident. Grinding materials such as a cement plant, zhejiang province, 850 kw reducer using the ordinary hydraulic oil, gear abrasion, pitting, teeth missing. A large cement plant three main reducer GZ1120, power 850 kw, the center distance of 1120 mm, 560 mm wide, tooth surface contact stress of 339. 9MPa。 Pitch circle 13 m/s speed, long-term use of 100 normal machine oil, because of the oil film strength is not enough, not appropriate viscosity, tooth face all kinds of damage, cause deceleration box body vibration, noise, high burning, oil leakage, uneven speed was forced to stop. After switching to CKC220 load gear oil, new tooth surface without damage. Therefore, it is very important to choose products according to the working condition, equipment type, speed, load and working environment each are not identical, use of lubricating oil label also each are not identical. The type and grade of lubricating oil is various, the correct selection of lubricating oil type and label and strengthen the preservation of lubricating oil is particularly important. The choice of 3 oil ( 1) According to the specified in the instructions for equipment selection and label. But to note here manufacturers often of lubricating oil production is not entirely clear, there is low on product recommendation on the high side, so be combined with the actual operation situation to revise. （ 2) According to the equipment working conditions. When working at high temperature of friction pair to choose larger viscosity oil or penetration small fat, so as to guarantee the normal work condition of oil film thickness; Instead choose motion low viscosity oil or penetration big fat, so as to ensure lubricating materials under low temperature fluidity. When the working temperature of friction pair and change frequently, the selected oil or grease should have good viscosity-temperature properties, namely the consistency of the viscosity of oil or fat used as working temperature rising or falling a little change, oil film thickness value requires stable within a certain range, to ensure the lubrication of kinematic pair. When working at high speeds to choose oil viscosity smaller or larger penetration of the fat, to ensure the liquidity and permeability of oil well, and to choose the viscosity of oil or penetration small fat, in order to avoid the loss of grease. Oil viscosity, consistency, of course, also cannot too big, if too big increase friction resistance, increase energy losses. Should be chosen as the load is bigger bigger oil viscosity or penetration small fat, so as to guarantee the normal work condition of oil film thickness; Instead use smaller viscosity oil or penetration big fat. Lubricating oil when the choose and buy, want to pay attention to the physical and chemical performance lubricating oil, such as lubricating oil viscosity, corrosion resistance, anti-rust, flash point, water content, the impurity rate and acid value, etc. Should be based on actual performance, operation environment and the lubricating oil manufacturers, considering the comprehensive economic benefits, and can meet the lubrication requirement, is advantageous to the management under the premise of as much as possible to reduce the types of lubricating oil and label, in order to reduce purchasing and storage costs. Of the key parts of the imported equipment must use imported oil, in order to improve the lubrication performance, prolong the service life of equipment. Available not important part of the domestic lubricants, in order to reduce costs. （ 3) A moderate amount of gas. A device has strict rules in the design of he pitted, operating personnel should be observed according to the directions and daily oil standard, endoscopic for lubricating oil etc. In actual operation of the equipment, if add more oil, instead of side effects. Such as air compressor, crankcase oil too much, which increases the movement of the crankshaft resistance; In the reducer, to reduce the number of gear movement resistance and prevent oil temperature is high, the depth of oil into the gear with 1} When two teeth Gao Weiyi, high speed should also be more shallow; Give when the rolling bearing fatliquoring all the bearing cavity filled with otherwise it will increase the bearing running resistance, easy to heat, causing high oil temperature, oil flow out, or poor lubrication bearing damage. As an international well-known brand, shell, with its leading technology of lubricating oil products and professional technical service training, based on many cement manufacturing enterprises at home and abroad in the past years of practical experience of cooperation, develop gradually forming a set of reasonable lubrication technical specification for cement manufacturing equipment, from mining to cement production, shell can provide comprehensive lubrication solutions. In addition to mining quarry of mobile devices, shell lubrication products in cement production line more than one thousand lubrication points, especially on the key equipments' two grinding a kiln is special, such as shell can withstand voltage ( Omala） Series gear oil products, with its excellent anti-wear properties can be opposite the main reducer, roller bearings, rotary kiln main reducer such as key gear box to provide reliable lubrication protection, prolong the service life of equipment and improve the system efficiency. Source: journal of the Chinese cement