Methyods to judge ball mill bulging belly happen

 

Tertiary crushing equipment adopts two VSI crusher VSI9526 whose capacity is 300-380 tph, You can aslo use our new small ball mill as tertiary crushing equipment. Two vibrating screens are installed after small ball mill. Our Company supply  around South Africa and other many countries.
Mining machinery will have some problems in the production process, such as the “bulging belly”. How to determine the ball mill “bulging belly”?
In the ball mill grinding process, there will be “bulging belly” if the inputs is imbalanced with outputs. Ball mill “bulging belly” is not happen in a sudden, but when it happens, there is a process to deterioration, and this process accompanied by a variety of abnormal phenomenon. So we should have to enhance responsibility, detect and adjust problems accordingly, eliminated the “bulging belly” at the small stage. We can judge the “bulging belly” of ball mill from the following several phenomena. Measured mass fraction and watch the discharged material. The discharge mass fraction basically remained unchanged by working ball mill, if the mass fraction began to increase and the grain becomes coarsening, the “bulging belly” will be happened. Therefore, from the ball mill’s mass fraction of discharge can also be found the “bulging belly”. Listen to the sound. The sound when the ball mill works mainly from the impact between drive mechanisms and its liner. The knocking strong or not from the drum depends on the amount of material in the ball mill. When the ball mill out of balance and is about to “bulging belly”, drying the impact sound between materials and liner become dull gradually almost disappeared. Therefore, we can found the “bulging belly” from changes in the strength of sound when ball mill work.

Lifting height of classifier spindle is one of the important reasons of affect the amount of sand and grinding fineness. Due to the ore in classifier does not clean up, with long time of sedimentary the sludge deposition is very strong. Due to not careful enough people do not put down the spindle completely when they placed the spindle of classifier, and as result the sand back to ball mill is less than normal. Therefore, in normal production, we require the spindle into the right position.

The classifier blade wear and tear also has an impact on ball mill grinding fineness. After blade wear and tear, the back sand became reduced and makes the grinding fineness thicker. If the blade wears severely, it will affect the grading machine life. So it is very important to check the blade wear in working time, change the wear blade in time.

With its high quality products such as Rock crushing plant, China impact crusher, Symons cone crusher, Sand maker, Impact crusher, Henan Hongxing mining machinery Co.Ltd has ascended in the front rank of the world in the exporting of mining equipments.