Screening of heap leaching ore

In the crushing process, it is generally required to install a screening device and set a screening process. Its purpose is two: one is to avoid excessive crushing of ore; the second is to ensure the size of the ore. Screening equipment often forms a cyclical process with the crushing equipment, which is called closed circuit. In the whole crushing process, there are fewer closed circuits, and a closed loop is generally used. Screening equipment often used metal mesh, welded metal (steel) bars, a mechanical vibration, in order to avoid clogging of the sieve material. If the powder ore is too much, the water is too high, and the mesh hole will gradually shrink, it should be removed in time. On the other hand, due to the friction of the ore, the steel rod is gradually worn, and the size of the mesh hole is gradually enlarged, and should be replaced in time.

It is important to control the ore crushing by sieving method in heap leaching. Because the fine powder is too much, the permeability of the heap is poor, the flow rate is slow, and the surface of the heap is easy to accumulate; when the heap is sprayed, too much fine powder will increase the phenomenon of the separation of the ore heap. Under the impact of the liquid flow, the ore powder is concentrated in a certain part of the heap with the liquid flow filling, resulting in uneven seepage of the entire heap, which will inevitably lead to a decrease in the leaching rate.

In some cases, in order to dissociate the mineral from the bottom of the inclusion, the ore is required to have a fine particle size. In this case, it is generally preferred to granulate the ore.

For KATO Cylinder Seal Kit

The replacement process of excavator hydraulic cylinder is as follows:
1. Turn off the hydraulic system: Before replacing the hydraulic cylinder, it is necessary to turn off the system to avoid liquid leakage in the hydraulic system.
2. Disassembling the hydraulic cylinder: Disassembling the hydraulic cylinder requires the use of tools such as wrenches, screwdrivers, etc. Firstly, the hydraulic pipeline needs to be removed, and then the bolts of the hydraulic cylinder need to be removed to remove the hydraulic cylinder from the machine.
3. Check the hydraulic cylinder: Check if there is any damage to the hydraulic cylinder, and if there is any damage, replace it.
4. Install a new hydraulic cylinder: Install the new hydraulic cylinder onto the machine and secure the cylinder with bolts.
5. Connect hydraulic pipeline: Connect the hydraulic pipeline to the hydraulic cylinder, pay attention to the position and direction of the connection, and ensure that the connection is secure.
6. Test system: after replacing the hydraulic cylinder, it is necessary to test whether the system operates normally, check whether the hydraulic cylinder operates normally, and deal with any problem in time.
7. Cleaning work: Clean the liquid and debris in the hydraulic system to ensure that the system is clean and avoid any impact on the system.


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