In the gold selection process, the externally mixed mercury is mainly used to capture the coarse-grained free gold. Therefore, the mercury-mixing plate is usually disposed in the grinding and grading circuit, that is, directly processing the ball -discharging product of the ball mill . This can prevent the gold particles from being lost on the surface of the steel ball and the lining due to repeated grinding, and early harvesting, accelerating capital turnover and improving economic efficiency. Some mines place mercury amalgam plates outside of the grinding and grading circuit to process classifier overflow products. This configuration has a low recovery rate for amalgamation operations.
A Tower Crane anchorage frame is a structural component used to secure a tower crane to the ground or a building during its operation. It is typically made of steel and designed to withstand the high loads and forces exerted by the crane.
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In order to achieve a higher rate of mercury recovery, operations must be strengthened to improve management. In addition to the common factors affecting the amalgamation operation mentioned above, the throughput per unit area of ​​the mercury plate and the time of the amalgam extraction also affect the efficiency of the amalgamation plate.
The size of the mercury plate should be determined by the amount of ore processed, the ore content, and the role of the amalgamation process in the gold selection process. Under normal conditions, the thickness of the slurry flow on the mercury plate is 5 to 8 mm, and the flow rate is about 0.5 to 0.7 m/sec. Mercury plates have different production quotas depending on the size of the gold content and the role of the amalgamation process in the gold selection process. When amalgamation is used for independent operations, the daily processing of mercury per ton of ore requires an area of ​​0.1 to 0.2 m 2 . The fine grain high grade takes the upper limit, and the coarse grain low grade takes the lower limit.
After a certain period of time after the amalgamation operation, the mercury paste should be scraped from the mercury plate. The time to scrape the mercury paste is usually the same as the time to add mercury. For the convenience of management in China, it is common to scrape the mercury paste once per work class. When the mercury paste is scraped, the ore should be stopped, the mercury plate should be washed away, and the hard rubber should be scraped from the lower part of the mercury plate. Sprinkle some mercury on the mercury plate before scraping the mercury paste to make the mercury paste soft and easy to scrape. It is not necessary to scrape the mercury paste thoroughly. It is necessary to leave a thin layer of mercury paste on the mercury plate to prevent the mercury plate from "getting sick".
The anchorage frame consists of a base plate or foundation, which is securely attached to the ground or building structure. It also includes vertical support beams or columns that provide stability and strength to the frame. These columns are connected to the base plate and extend upwards to support the tower crane.
The anchorage frame is designed to distribute the loads from the crane's operation evenly and safely to the ground or building structure. It must be able to withstand the weight of the crane, the loads lifted by the crane, wind forces, and other external factors.
The design and construction of a tower crane anchorage frame must comply with local building codes and regulations. It is typically engineered by a structural engineer to ensure its strength and stability.
Proper installation and regular inspections of the anchorage frame are essential for the safe operation of a tower crane. Any signs of damage or deterioration should be addressed immediately to prevent accidents or structural failure.