At present, in the mining and beneficiation industry, the most popular screens are polyurethane screens and manganese steel screens. What are the advantages of these two screens and what should be paid attention to in the process of normal use? Let's introduce them to you one by one.
The beneficiation unit selects polyurethane screen plate, which is characterized by wear resistance, not blocking material and good use effect. Its disadvantage is low opening rate and slow blanking of screened materials. In the process of producing polyurethane screen plate, it is necessary to consider both the use effect of screen and the screening rate of screen. In recent years, due to the development of new technology, a screen that can effectively improve the screening efficiency and reasonably increase the service life has been developed, which has solved the previous problems for various beneficiation unit customers and greatly improved the use effect of the screen.
Secondly, the manganese steel screen is welcomed by the beneficiation unit. The national standard 65 manganese spring steel wire is generally used for material selection. This material is wear-resistant and not easy to break. New processes are adopted in production and processing to reduce the damage to the steel wire, so as to achieve the best use effect of the screen. The screen is used for one third more time than before, so as to reduce the replacement frequency and expenditure for customers.
In the process of traditional mining production, iron ore (mostly siderite and waste rock) and stone are separated by demineralization and ore washing vibrating screen in heavy medium beneficiation process. Until recently, many mines have been using screening media produced by conventional manufacturers. Although the sieve plate is competent for the job, its wear life is too short, only 2 to 3 months.