First, the main method of flotation recovery of silver From the multi-metal ores associated silver recovery, silver is often concentrated in the flotation concentrate, to be recovered in the smelting silver. For silver-based ores, silver minerals are often enriched by a re-floating combined process or a single flotation process, and the silver concentrate is then chemically extracted. Second, the flotation example A silver mine in China is a low-temperature hydrothermal multi-metallic silver deposit. The metal minerals in the ore are mainly silver-silver or spiro-silver-silver ore, followed by natural silver. Associated with a small amount of copper, lead, zinc, sulfur, sulfides and oxides, metallic minerals accounted for 1.16%, the major gangue of quartz, feldspar and small amounts, sericite, etc., accounting for 98.84% of all minerals, ores of copper, Lead, zinc and sulfur minerals have a coarser grain size, while silver minerals have a finer grain size, generally between 0.074 and 0.005 mm. They are closely related to sulfide minerals and gangues, and good silver flotation is required. The index must be finely ground to recover silver by the combined process of flotation-flotation concentrate. The flotation process is simple, and a grinding process with controlled grading is adopted to control the graded overflow fineness of -200 mesh to 70%-80. %, flotation is a coarse and fine second sweep operation, flotation concentrate is removed from the drug and then sent to the leaching. Flotation agent: xanthate 50 ~ 70g / t; black medicine 60 ~ 80g / t; 2nd oil 10 ~ 20g / t Product :Keyless Drill Chuck, Key Type Drill Chuck with Threaded Fitting, Keyless Drill Chuck with Threaded Mounted Keyless Chuck,Drill Press Chuck Key,Milling Key Type Drill Chucks,Drill Chucks System Shandong Chongde Precision Machinery Co.,LTD , https://www.springcollet.com
Drill chuck is by drilling collet, elastic dial ring, connecting piece, the back cover. In drill collet, its axial positioning is implemented using the connection piece, upon jack, via the circumference of a circle in the elastic dial ring under the action of internal thread axial movement, under the action of a precise automatic centering and clamping tool, when you are working with different drilling tools need to adopt such as center drill, drill, reamer, tap drill chuck, can loosen the positioning screw, turn the segment to the desired location, fastening positioning screw, realize the drill chuck the movement of the transfer.
The drill chuck is one of the main parts of electric tool industry and machine tool industry, widely used in electric drill, drilling machine. Chuck is connected with the tool, is used to clamp the handle type tool accessories. The drill and connection with threaded connections and taper connection in two ways. Threaded connection is mainly used on an electric hand drill, cone connection is mainly used for drilling machine drill chuck from structure can be classified as type wrench and keyless. Spanner drill chuck wrench to tighten the wheel needs, mainly used in machine tool industry, such as drill and drill. Hand drill chuck set to hold on and tighten the collet, mainly used for electric drill. Spanner drill chuck as by pulling wheel to tighten the collet and a pulling wheel is a with an extension arm of bevel gear, so in the process of screwing can serve to increase the role of input torque, so chuck clip clamping force is too large