How To Arrange The Cone Crusher Feeding Equipment?

For cone crushers, manufacturers generally require continuous, uniform, and full-cavity center feeding conditions when designing. In reality, many stone factories do not pay much attention to the layout of cone feed. Little do they know that incorrect feed layout will lead to a decrease in cone crushing output, overload of the main machine, unstable transmission load, and irregular lining wear, which will seriously damage the main machine of the crusher prematurely.

Let's take a look at how to arrange the feeding equipment of the cone crusher to be more productive? And how to distribute the materials?

1. Pre-Screening Before Feeding

When the ore is crushed in the crushing chamber, there needs to be a certain gap between the particles. If there are few gaps between the particles and the "space" required for the crushing of larger particles is insufficient, it is difficult to crush the material.

Usually, the feed of the medium crushing cone crusher comes from the discharge of the coarse crushing jaw crusher. Affected by the source of raw materials and insufficient pre-screening of the coarse crushing stage feeder, the discharge of the coarse crushing jaw crusher contains a lot of fine materials (smaller than the discharge port of the medium crushing cone crusher or materials that can directly enter the next crushing stage), so pre-screening equipment should be added before the medium crushing cone crusher.

Advantages of pre-screening

On the one hand, the smaller particles in the jaw crusher discharge are pre-separated to ensure that there is ample space between the large pieces of material in the feed of the secondary crushing cone crusher, which helps to strengthen the laminated crushing, improve the crushing efficiency, and reduce the consumption of lining plates;

On the other hand, the materials after screening can directly enter the fine crushing operation (such as fine crushing cone or vertical shaft impact crusher), improving the processing efficiency of the entire production line.

2. Detailed Explanation Of Two Feeding Arrangements

If the site area is large, a combination of underground silo + high-level silo can be used.

Among them, the underground silo has a large storage capacity, which can avoid the problem of discontinuous start-up of the coarse crushing jaw crusher due to untimely treatment of the secondary crushing cone, and can also avoid the problem of insufficient start-up rate of subsequent operations due to failure of the coarse crushing section;

The high-level buffer silo generally has a capacity to ensure the operation of the secondary crusher for 15-20 minutes. This silo can ensure that the center of the cone crusher is filled with feed, reduce the impact of materials on the cone crusher feed barrel, and further adjust the location of the on-site equipment installation. It can also avoid the disadvantage that once the cone crusher stops suddenly, the feeding belt conveyor needs to stop and start with materials.

(1) High-level silo + movable belt feeder

For the feeding belt conveyor, under the premise of ensuring the feeding amount, the appropriate belt width should be selected to ensure slow speed to reduce the separation of materials on the belt when falling and reduce the impact on the crusher feed barrel. When the belt width is small, a guide trough can be installed on the entire length of the belt to increase the thickness of the materials on the belt. It is better to design the feeding belt conveyor of the cone crusher to be movable. First, it is convenient to adjust the feeding point so that the material falls in the center of the crusher feed barrel; second, it is convenient to provide sufficient space for equipment maintenance.

(2) High-level silo + movable electromagnetic vibrating feeder

Installing a vibrating feeder at the discharge port of the medium and fine crushing silo can effectively control the feeding amount and greatly reduce the occurrence of belt wear and tear, especially the feeding of the medium crusher. If a vibrating feeder is installed, the feeding amount of the crusher is controlled by the frequency conversion of the vibrating feeder, and the belt conveyor runs at a constant speed.

Through the appropriate arrangement of feeding equipment, the segregation of materials can be minimized, the feeding can be uniformly packed, the crushing effect of the cone crusher can be enhanced, the unit energy consumption of the crushing can be reduced, and the production cost can be reduced.