NEWS

1. Increase the number of ore crushing in the crushing cavity.

The structure optimization of the crushing cavity plays an important role in the structure parameters and shape of the crushing cavity on the crushing process of materials. This factor determines the productivity of the equipment, power consumption, liner wear, uniformity of product particle size, and pass rate. Key link.

2. Keep the parameters of the tight side discharge opening unchanged.

If you want to stabilize the output, quality and load of sandstone products, you must first ensure that the parameters of the taper’s tight side discharge port remain unchanged. Otherwise, the particle size of the product will increase unexpectedly, which will affect the entire production line system and the final output.

Suggestion: It is recommended to check the parameters of the tight side discharge opening every shift.

3. Try to continue the “full room” operation.

If a cone is “hungry” and “satisfied” due to factors such as unstable feed, the particle size and yield of the product will also fluctuate. The half-cavity cone is not ideal in terms of gradation and needle shape.

Recommendation: Sand and gravel manufacturers try to ensure that the cone breaks through the cavity and do not feed too much in order to obtain a better output and particle size. This is especially important for producing tertiary cone fracture (short-end cone fracture) in the final product.

4. Don’t feed too little.

Giving only a small amount of raw materials will not reduce the burden of cone breaking. On the contrary, too little raw materials will not only damage the output and poor particle size of the product, but also have an adverse effect on the cone crushing bearing.

According to the working principle of the cone breaking, the actual power of the cone breaking should not be less than 40% of the rated power. In order to obtain the correct “load-bearing positioning” and maximize productivity, the actual cone breaking power should be kept between 40% and 100% of the rated power. It is the best choice to reach 75%～95% of the rated power during operation

5. Design and transformation of crushing cavity.

The crushing cavity technology is called the core technology of the crusher, because the performance characteristics of the crushing cavity of the fine cone crusher play an extremely important role in the production and operation of the crusher. The length of the crushing zone can be increased by shortening the parallel zone and the amount of crushing can be increased; the straight line connection of the fixed cone crushing surface is changed to a straight line and a curve connection, and the connecting points of the moving cone and the fixed cone are staggered to reduce the possibility of blockage; reduce the eccentricity , Increase the speed of the eccentric sleeve to increase the number of crushing and improve production efficiency.

6. Reasonable choice of interference.

In order to ensure that the main shaft and the body of the finely crushed cone crusher do not loosen during operation, it is necessary to reduce the interference between the main shaft and the cone body. Although the larger the interference, the stronger, but this will increase the stress concentration and fatigue the main shaft. The strength reduction is more serious, so it is very important for the fine crushing cone crusher to choose its matching interference reasonably.

7. Improvement of vibrating screen.

Most of the vibrating screens configured in the fine cone crusher also have some problems, so the improvement of the vibrating screen is also an effective way to improve the working efficiency of the fine cone crusher. In the process of improvement, the vibrating screen should be improved according to the actual situation. Generally speaking, it includes measures such as increasing the length of the screen surface, increasing the vibration frequency, reducing the installation angle and structure of the screen surface, and improving the feeding method.

8. Increase of automatic adjustment system.

In order to improve the working efficiency of the fine crushing cone crusher, an automatic adjustment system needs to be added. A single-drive rotary distributor can be installed on the upper part of the crusher and the lower part of the vibrating screen, which can solve the uneven feed segregation, impact dynamic cone and slab. The problem of uneven wear. Power control is adopted, and automatic feeding control system is added.

9. The drop point of the feed  material needs to be aligned  with the center point of the cone entering the feed port.

It is recommended to use a vertical deflector to guide the drop point of the feed material to the center of the entrance of the broken cone. Once the drop point is eccentric, one side of the crushing cavity is full of material, and the other side is empty or less material, which will cause adverse effects such as reduced crusher output, increased needle-like products, and large particle size.

Improper operation: Once this happens, the operator will often reduce the parameters of the tight side discharge port, and try to make the crusher produce products with the target particle size. However, too much feed can easily cause problems such as overload and adjustment loop jump. It will cause problems such as tilting, tilting, and damage of the adjusting ring base, resulting in greater production loss.