For the magnetite ore dressing, the advanced ore beneficiation process can not only help us to save energy and reduce the beneficiation loss rate, but also can fast recover the processing costs. The advanced beneficiation process has played a very important role for improving the economic benefit. In the following paragraphs, the experts of Henan Hongxing Mining Machinery will carefully analyze the ways to effectively reduce the beneficiation loss for the magnetite from various links.
First, in terms of the improvement for the working effect of the sculping screen, we can use the sculping screen with high efficiency and the mesh with large aperture ratio. We can set a fixed screen or asieve bend before the sculping screen. The density of the underflow of the heavy medium cyclone is too high and the sculping effect is poor. Part of qualified suspension of the clean coal under the screen can be introduced to dilute the bottom currents and improve the sculping effect. The water spray for the products sculping sieve should be enough. The clean water can use the pressure water jet, while the recycled water can use the non-pressure water jet.
Second, the direct magnetic separation process with dilute media can be used. The practice of the coal preparation plant has proved with the direct magnetic separation process with dilute media can make the consumption of the media significantly reduce.
Third, the recovery rate of the magnetic separator should be ensured. Generally, the recovery rate of the magnetic separator should be ensured more than 99.8%. Large amount of the dilute media is recovered through the magnetic separator. The working efficiency of the magnetic separator has great impact on the loss of the magnetite. For example, if the amount of the magnetite ore into the magnetic separator is 6000kg/h and the recovery rate of the magnetic separator is 99.9%, the loss of the magnetite ore is 6kg/h. If the recovering rate of the magnetic separator is 99%, the loss of the magnetite ore is 60kg/h.
Forth, the liquid level of the machine should be keep balance to avoid the clogging phenomenon.
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