Vale has filed a patent for a system designed to remove iron ore particles from a vertical magnetic separator using a magnetic matrix. The system includes features such as an ore feed inlet, an accumulation vessel, collecting trays, a demagnetizer, a cleaning device, and compressed air jets for efficient operation. GlobalData’s report on Vale gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Vale, Extraction by leaching was a key innovation area identified from patents. Vale's grant share as of January 2024 was 72%. Grant share is based on the ratio of number of grants to total number of patents.

Iron ore particle removal system for vertical magnetic separator

Source: United States Patent and Trademark Office (USPTO). Credit: Vale SA

The patent application (Publication Number: US20240024894A1) describes a system and method for removing iron ore particles attached to a magnetic matrix in a vertical magnetic separator. The system includes a separation ring with a magnetic matrix, an ore feed inlet, an ore accumulation vessel, a magnetic field-generating device, collecting trays, a demagnetizer, a mechanical cleaning device, and compressed air jet-generating devices. The method involves demagnetizing iron ore particles, scraping the magnetic matrix with a mechanical cleaning device, and applying compressed air jets to remove the particles.

The system described in the patent application can be used in a vertically pulsating high gradient magnetic separator (VPHGMS) and includes features such as multiple collecting trays, a mechanical cleaning device with flexible filaments, and compressed air jet-generating devices positioned strategically for effective particle removal. The method outlined involves a series of steps including demagnetizing, scraping, and applying compressed air to efficiently remove iron ore particles from the magnetic matrix. The use of a demagnetizer with coils of enameled copper wire in a Helmholtz configuration and the application of compressed air in an angled manner are key aspects of the system and method for effective particle removal in the vertical magnetic separator.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies