CLF180 - Type 120 rolling machine feeding device reformation experience

CLF180 - Type 120 rolling machine feeding device reformation experience - 2020 12 - 20 kit Deng Liang Li Junke ( Aksu tianshan surf cement co. , LTD. ) A company & Phi; 4. 2 m× 13 m combination grinding ( Two lines) System configuration CLF180120 type roller press, grinding PO42. 5 Taiwan cement output of 190 ~ 200 t/h. Run since 2011, roller press feed control device due to the transmission system reliability is poor, not flexible movement, causes the roll material flow around size change, lead to roll gap width around instability, imbalance of pressure. System due to the roll gap pressure deviation around big often protect jump stop, and lifting hoist wire rope traction control feeding device for the temporary opening to stabilized material flow size, but because of poor sensitivity, workload is big, can only intermittent maintain production, continuous stable production, to improve the quality of production, to reduce the power consumption bring great difficulties. One, the original feeding device failure analysis the original roll press feeding device adopts two sets of JS15 type double track double boost turbine worm drive, built during the operation of the turbine worm transmission mechanism is exposed to cement dust in the raw materials, cement fine particles contain water vapor and heat easy condensation on the worm. Due to difficult to guarantee the lubrication, sealing, turbine worm drive gear pair meshing difficulties, friction and wear, do not agree about ascension, two groups of walking wheel easy on guide double-track road jammed, lead to dual track deformation, such as turbine tooth profile fracture failure. Due to parts supply not in time, causing the whole cement grinding line can't operate properly. And a built-in transmission mechanism in the space is narrow, not conducive to repair, maintenance and maintenance, bring many disadvantage to production. The feeding device structure as shown in figure 1. Figure 1 original feeding device structure, reform of roller press feeding device in order to solve the above problems, with 'saving investment, easy operation principle, the company technical personnel on-site analysis decided to change the turbine worm drive to sleeve roller chain sprocket coaxial double increase transmission. According to the original turbine worm drive measure feeding device movement speed, to calculate the required transmission ratio, using idle batching scale ( 1. 1 kW - Level 4, 3 we278 - The type 1849 planets needle wheel reducer) Transmission drag, 20 a - and a reasonable choice 1, 17 tooth sleeve roller sprocket teeth, 21, to make the repair and maintenance is easy to operate, the external drive mechanism. After transforming the electric control system of continue to use the original central control, electrical control system on site. The system transformation in the process of buying only 20 a a 1 sleeve roller sprocket and chain corresponding 6 m and machining axis, bearings, bearing and coupling, a total of 8500 yuan. After transforming the scene structure as shown in figure 2. Figure 2 after transforming the scene structure used after three, the transformation effect in March 2016 the structure transformation completed, run up to now, feeding device use agile, flexible and controllable and the roll material flow around size about roller press roll gap is normal, or pressure difference in a reasonable scope, completely solve the roller press about as a result of the original feeding device operation is not flexible roll gap width is not stable, or so big pressure deviation, jump stop problem caused by roller press system, the system safe operation and save power consumption, stable quality of cement. Use effect before and after the transformation are shown in table 1. Table 1 summary effect before and after rolling machine ( PO42. 5 cement) Due to the use effect is good, the company of another production line feeding device also has carried on the same transformation. Source: 'cement' 04, 2017