Newmont‘s patented block cave design features drawbells with a height of at least 25m and a specific profile for efficient mining operations. The drawbells allow caved rocks to flow downward from the extraction level, enhancing productivity in underground mining. GlobalData’s report on Newmont 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 Newmont, Extraction by leaching was a key innovation area identified from patents. Newmont's grant share as of May 2024 was 56%. Grant share is based on the ratio of number of grants to total number of patents.
Patent granted for drawbell design in block cave mining
A recently granted patent (Publication Number: US11994028B2) discloses a drawbell designed to facilitate the flow of caved rocks in a mining operation. The drawbell features a specific profile, including a throat section, tapered section, and undercut section, each with defined dimensions and configurations. The drawbell has a minimum height of 25 meters, with the void volume being at least 9000 cubic meters to efficiently handle the caved rocks.
Furthermore, the drawbell includes specific height requirements for each section, such as the throat section being at least 10 meters high, the tapered section at least 16 meters high, and the undercut section at least 7 meters high. Additionally, the spacing between the side walls of the throat and undercut sections is specified to be at least 14 meters and 40 meters, respectively. The drawbell is divided into upper and lower regions, with the upper region comprising the undercut section and the lower region comprising the throat and tapered sections. These design features aim to optimize the flow of caved rocks from the caved volume to the extraction level in a block cave mining operation, enhancing efficiency and safety in the process.
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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 across the world’s largest industries.
