The invention discloses a method for decomposing rare earth concentrates, in particular to a method for decomposing rare earth concentrates by reverse leaching. The process steps include: filtration, drying, roasting and magnetic separation. The utility model is characterized in that: first, reverse leaching and impurity removal, the water-soluble substance is first dissolved by dilute hydrochloric acid, and the rare earth element is left in the leaching residue; then the leaching residue is filtered and dried, and then oxidized and roasting is performed; Rare earth minerals are selected under the magnetic field strength. The object of the present invention is to provide a rare earth concentrate decomposition method with low raw material consumption, low production cost and high rare earth recovery rate.
There are many ways to use fitness equipment for shoulder exercises.Enhance muscle strength, improve joint flexibility, or increase muscle volumeThe movements for exercising the shoulders are as follows:
Action 1: Lie on your side and lean on a stool, holding a small dumbbell in each hand. At the beginning of the action, lift the dumbbell upwards. This movement mainly trains the posterior deltoid muscle.
Action 2: Inverted Butterfly Machine. Generally, butterfly shaped machines are only used to clamp the chest, while such reverse butterfly shaped machines can train the shoulder, back, and rhomboid muscles. The same weight should not be too large, otherwise the trapezius muscle will also work.
Action 3: Dumbbell side lift. Side lift is the most common shoulder movement. It is important to remind everyone not to lift the dumbbell too high during the process, as it may also affect the trapezius muscle.
Action 4: Use a gantry to perform a lateral rope lift, alternating hands on the rope to lift it up. One thing that is better than dumbbell barbells in training is that it can keep muscles full of tension.
Shoulder Lift Trainer,Shoulder Press Rack,Rowing Machine,Lateral Raise,Lat Pull Down
Xuzhou Hongxing Gym Equipment Co., Ltd , https://www.hxyfitness.com