Small can the transducer application on ball mill of pottery and porcelain

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One, preface is in of 21 centuries today, global the sources of energy is nervous, energy-saving voice is louder and louder, advanced energy-saving technology makes a window of the society gradually. In it is however in a lot of energy-saving enterprises, particularly right ceramics industry, think generally ball mill hard controlled, because use electric equipment to use up how many report, with its Electromechanical character is decided, subjective control is helpless. Very apparent, this idea is wrong. In countrywide fluctuation the case with the severe situation that use phone falls, shenzhen is small can limited company of science and technology uses newest 9G series transducer, use advanced frequency conversion energy-saving technology, in city of Fosan of base of production of Guangdong pottery and porcelain Xi Qiao presses down works of some famous pottery and porcelain to execute ball mill energy-saving transform. Carry out a proof, through a series of technology and administrative measure fall ball mill specific power consumption to lowest, protect an environment to create economic benefits for the enterprise again namely, the enterprise can reduce 5 ～ at least the management cost of 10% . 2, the working principle of ball mill is in ceramics industry, ball mill because power is greater, held an enterprise to always use the 80 ％ above of n, the basic structure substantially of the ball mill of of all kinds ball mill is identical, the certain part that is them only differs somewhat, grind aircraft is general all by cylindrical shell, scaleboard, feeder, platoon glassware, the axis in sky, bearing, gearing, with lubricant system composition. Do following plan institute show its appearance structure: ? Unoccupied place bright of handkerchief of bridge of unoccupied place bright of  of mother of value of  of leg of Wen of the member that fan of Xi of thoroughfare fan of Cai of earthen jar of incomplete of Cai Dan dry up rafts  Xi holds the post of    to wring Qian of job of mother of vertebra of  Qian hold up to add broadleaf plant of Song of F of commission  umbrella to rip  of Ta of lonely of ɡ of the crab that add bless  is grown censure honest sends Mo to beat Shan of Jiao of correct Shan have diarrhoea to look then   wrings Mei of take along sth to sb of linden of felt of eight of carapace of Zhan Huan D wring pull the toot that drink  melt Li of ︸ of fine long hair of  of  of Jian Duo  lifts Qi of  of a huge legendary turtle to tasty  of ご of  of game haughtying a huge legendary turtle tasties, the rotate speed of cylindrical shell is by leather belt annulus or gear decelerate orgnaization (coupler of useful also hydraulic) of the decision. The rotate speed of ball mill affects the abrade process of the athletic condition of steel ball and stock and stock directly, below different rotate speed, following plan institute show the athletic state of the steel ball inside cylindrical shell and stock: When rotate speed is inferior, steel ball and stock rise along with cylindrical shell wall, when be equal to when the dip of steel ball and stock or be more than natural inclination, edge cant slips below, cannot form enough fall, steel ball is very small to the abrade action of stock, the efficiency of ball mill is very low. When the rotate speed of cylindrical shell is in the some rotate speed between afore-mentioned both, steel ball is taken parabola of the edge after certain height falls, to canister base stock strike action the biggest, abrade efficiency is highest, right now rotate speed calls optimal job rotate speed. If the rotate speed of cylindrical shell is very high, because leave the action of mental efforts, break away from canister wall in order to cause stock and steel ball no longer, and therewith rotates together, at this moment steel ball already was not had to stock strike action, abrade efficiency is lower. The lowermost rotate speed of this kind of condition calls critical rotate speed. 4, the problem ball mill that ball mill system exists uses simple labour frequency to control commonly, easy those who cause stock is excessive and abrade, what require abrade cycle longer, abrade efficiency is inferior, unit product power comsumption is bigger. Ball mill uses astral triangle commonly or start from Ou step-down, the electric current that start is particularly big, the production of very large to the concussion of equipment and electrified wire netting mechanical facility maintains a volume big also, and loss amount of report is quite amazing, this can give manufacturer home to bring a lot of needless troubles and serious resources waste necessarily, reach the amplification of company scale of production as the development of socioeconomy so, the malady that direct labor charges ball mill already was exposed without involuntary discharge of urine, and severely block up each industry company grows quickly. This makes people develop start flowing, abrade efficiency taller, crop the ball mill with big, small specific power consumption -- frequency conversion controls ball mill. 5, ball mill frequency control is energy-saving the working principle that controls a system 1.

The problem that systematic performance asks to exist according to former operating mode combines manufacturing technology to ask, should the ball mill system after transforming satisfy: of the following requirement? Na Pu of Shan of  head an ancient type of banner hoisted on a featherdecked mast dare bully Qi of  of セ of You of a side gate of an imperial palace of  of  of Bo of  of  of Qu of bad natrium of  fierce willful sees Song of Gan Di of Yi of ridge of uncut jade of ど of V of ⒈ of  of Xi of Shan bursa  litter of  of black of channel of rate of fierce thorn  still Song school  .

Basis of transducer type selecting afore-mentioned principles, the choice uses Shenzhen small can the 9G series transducer with newest limited company of science and technology, this series transducer has the following characteristic: This ＊ series is the transducer that uses weaveform of new generation SVPWM to make a technology, rated torsion outputs low speed, belt carry ability strong, can achieve when low speed of 180% rated turn be apart from output ＊ to have a variety of torsion promotion and V/F curve but set, a variety of adding, decelerate mode can choose, the PID function that buy human nature changes inside, a lot of parameter all but online adjust. ＊ has all sorts of perfect protection functions and breakdown to diagnose a system, have overvoltage, over- the functional technology such as electric current and stall protection is advanced, the function is all ready, use convenient, can satisfy electric division to be able to reach the need that all sorts of production technology ask. ＊ voltage grade a variety of power standards are all ready, function can reach the level of foreign congener product such as Euramerican day. ＊ frequency precision is tall, can make movement smooth, satisfy design requirement. Nextpage3.

Systematic circuit is as follows: 4.

Frequency conversion of installation of applied effect ball mill is energy-saving after controlling a system, obtained the following result: The equipment after ＊ is transformed can implement automation, and town report / function of section phone switch, can overcome ball mill big inertial those who cause pick up voltage, make sure equipment moves normally effectively. ＊ uses transducer automatic voltage adjusts function, can fall in the condition that has nothing to do with load, carry electric machinery efficiency highest. Because eliminated the impact when starting, lengthened gear of box of crankshaft, wave, the machinery such as leather belt service life, reduced upkeep costs. ＊ uses frequency control technical reformation of ball mill procrastinate use a system, satisfied ball mill low speed to move, start greatly turn the characteristic that be apart from, the traversal speed that realized ball mill is successive and adjustable. Impulse current is not had when electric machinery starts, starting force is apart from enough, protective function is perfect. Made sure craft is control quality, managing maintain cost. After ＊ ball mill uses frequency control, starting electric current can be compared former 5 times smaller above, (like 132kW electric machinery original starting electric current is in 1000A above, starting electric current of energy-saving control system is frequency conversion between 180A ～ 200A) , came true true soft start, also got energy-saving result. Because start electric current to be reduced greatly, of the impact that won't make didymous electrified wire netting and voltage of electrified wire netting drop, disappear uses electric equipment tripping operation or breakdown besides the other that start because of ball mill and causes, below size of same electrified wire netting, can increase number of outfit machine stage. PLC of the buy inside ＊ is multistage fast run a function automatically, can pass transducer conveniently set is abrade time, add grind time and stop machine function automatically, make operate more intelligence is changed, human nature is changed. The energy-saving effect of energy-saving system can amount to frequency control of ＊ ball mill commonly 12% ～ 15% the left and right sides. 6, investment and redound press down works of some famous pottery and porcelain to be with Fosan city Xi Qiao exemple, this factory already installed 37 small can the high-power transducer of the company. With a among them 40 tons of ball mill are exemple, electromotor power is 132kW, use power actually to be 115KW, work 18 hours everyday, work every months 30 days, so former ball mill is every months with n: 115kW × 18 hours of × 62100kW of 30 days of ＝ .

H (degree) , installing ball mill rate of report of the section after energy-saving control system can amount to special frequency conversion 14.

6% , can save charge of electricity every months to be: 62100 × 14.

6% × 0.

65 yuan / spend ＝ 5893 yuan. If invest with every transducer,be 5.

50 thousand yuan of computation, investment pay back period is 55000 ÷ 5893 ＝ 9.

3 months. If lead 12% computation with average length report, criterion benefit of report of lunar red-letter day is 62100 × 12% × 0.

65 ＝ 4843 yuan, every transducer investment is 5.

50 thousand yuan of computation, investment pay back period is 55000 ÷ 4843 ＝ 11.

3 months, can not call in to a year namely total investment. And the service life of transducer is 10 ～ 15 years commonly, pure redound is namely after a year period, also namely year section cable profit is controlled in 60 thousand yuan. 7, the last word is in our country ceramics industry, ball mill is used in great quantities, it is the indispensable significant production facilities that stock smashs. Carry out a proof, shenzhen is small can the energy-saving drive that the 9G series transducer that limited company of science and technology produces uses at ceramics industry ball mill is very successful, obtained good economic benefits. The construction that puts forward to our country is managing model society, reduce environmental pollution to have great economy and social sense, small can transducer also gets be popularizinged energetically applied in ceramics industry surely! CNC Milling