Cone Crusher China

Cone Crusher China

 How to increase Cone crusher capacity

How to increase Cone crusher capacity

1. Minimize the retention of buffer silos and improve the efficiency of the production line

The cone crusher buffer silo is used as the “enemy of production”, and the equipment and other related equipment also need to be carefully arranged. It is recommended that the rational use of buffer silos/hoppers, idle feed devices (conveyor belts, plate vibrating feeders) enable the operating operators to maintain the “full cavity” state of the cone crusher for a long time, and easily increase the output of the cone crusher.

2. Accurately grasp the three design limits of the cone crusher

The cone crusher has three design upper limits: throughput (capacity) upper limit, power upper limit, and crushing force upper limit. The upper limit of the cone crusher refers to the maximum throughput of the crusher. A cone crusher that is running “full cavity” has reached the maximum throughput. If the limit is exceeded, the feed port will overflow. When the feedstock is added and the material is increased. When the crushing is finer, the actual power of the crusher will rise; as with the power, the crushing force generated between the bowl-shaped tile and the broken wall of the cone crusher will also rise as the feed amount increases and the material breaks finer. When the crushing force exceeds the upper limit, the adjusting ring will bounce and loosen. Ideal operation When the crusher is operating at maximum throughput, the actual power and breakage rate are still slightly below the upper limit. Operating beyond the rated power and the upper limit of the crushing force will cause the cone crusher to be overloaded and permanently fatigued. This damage will irreversibly and will continue to accumulate, eventually shortening the life of the cone crusher.

3. Guarantee to operate within the upper limit of the crusher design

If the cone crusher runs beyond the upper limit of the crushing force (adjustment ring bounce) or exceeds the rated power, you can: slightly increase the parameters of the tight side discharge port and try to ensure "full cavity" operation. The advantage of "full chamber" operation is that there will be a stone-rocking process in the crushing chamber, which can maintain the product size when the discharge port is slightly larger; or reduce the feed rate, but it may be difficult to ensure good grain size. Analysis of the cause Generally speaking, the problem of the cone crusher adjusting the loop or exceeding the rated power is caused by the jamming, the eccentricity of the feeding, the uneven feeding, the excessive fines in the feeding, the large amount of mud, the broken wall and the bowl lining. Caused by the use of the error, or simply because the operating operator set the conical crusher tight side discharge port too small.

4, monitor and try to ensure the appropriate crusher speed

If there is no proper transmission belt tension, incorrect or neglected drive maintenance, the belt will slip and the speed of the crusher will drop during work. The crusher throughput of the falling speed is sharply reduced, while the power consumption is increasing sharply, the unit energy consumption is increased, and the operating cost is increased. It is recommended to install the speed monitoring device at the intermediate shaft and other places, connect to the PLC or directly connect the alarm device. Once the speed drop occurs, the maintenance personnel can be notified to adjust the belt, which can extend the belt life and ensure excellent productivity and energy consumption.

5. Control the fine content in the feedstock

Fine material in the feed: into the stone of the crusher, the particle size is equal to or less than the material set at the tight discharge port. According to experience, for the secondary cone crusher, the content of fines in the feed should not exceed 25%; the content of fines in the feed of the third-stage cone crusher should not exceed 10%. Causes and effects of excessive fines are usually caused by vibrating screen problems, and the insufficient mesh diameter or insufficient screening ability may cause this problem. Excessive fine materials can lead to problems such as insufficient power utilization during the crushing process and abnormal increase in unit energy consumption.

6, the feed height should not be too large

For small and medium-sized cone crushers, the maximum suitable height for the material to fall from the feeding device to the feed port is around 0.9 meters. If the feed height is too large, the stone is easy to "rush" into the crushing chamber at high speed, causing impact load on the crusher, and the crushing force or power exceeds the design upper limit. Affecting this problem can cause excessive pressure or strain on the crusher components, resulting in additional maintenance costs and low yields.