Reuse of Lithium Mica Calcined Slag Through Lithium Slag Vertical Roller Mill | Calcination of Lithium Slag Billet Of Ceramic Company Is Beneficial To The Development of Lithium Battery Industry

In the past, the calcined slag of lithium mica from ceramic enterprises was generally discarded. This not only takes up space, but also pollutes the environment. Extracting lithium resources from lithium mica calcined slag through lithium slag grinding mill has become a profitable direction for traditional ceramic production lines. HCMilling(Guilin Hongcheng) is a manufacturer of lithium slag grinding mill in China. Our lithium slag vertical roller mill production line provides good equipment support for turning waste into treasure for lithium mica calcined slag. The following is an introduction to the reuse of lithium mica calcined slag through lithium slag vertical roller mill. The lithium slag calcination of ceramic companies is conducive to the development of lithium battery industry.

HLM lithium slag vertical roller mill

How does lithium slag calcination of ceramic companies support the development of lithium battery industry? In China, more and more ceramic enterprises are turning to lithium slag blank mainly due to two factors. First, due to the development of power battery leading enterprises, the lithium battery industry chain is developing rapidly, and the price of lithium carbonate is rising, making the waste slag containing a small amount of lithium oxide also have high lithium extraction value; Second, due to the rising costs of raw materials and fuels and the declining demand of real estate and other channels in the ceramic tile market, a number of idle production lines have emerged in all major ceramic production areas in recent years. In the traditional lithium extraction process of lithium ore, about 0.5% grade lithium oxide will be taken away by the waste residue in the process of lithium extraction, resulting in a waste of resources. With the rise of lithium price, the waste residue containing lithium oxide also has high lithium extraction value. For example, Yichun production area in Jiangxi Province, China, not only has calcined slag of lithium mica, but also has idle ceramic tile kilns. Since the kilns, equipment (mills, dryers, etc.) used in the process of calcining and extracting lithium from lithium slag are connected with the ceramic tile production, it is easy to transform the production line. Through the transformation of the ceramic production line, the lithium-mica calcined slag and coagulant from the upstream lithium power enterprises are calcined at medium temperature in the ceramic kiln, and then sintered into lithium slag blank, which is returned to the lithium power enterprises for lithium carbonate extraction, realizing the utilization of waste resources and producing high economic benefits.

What process is used to realize the reuse of the calcined lithium mica slag? Lithium extraction from calcined lithium mica slag by lithium slag vertical roller mill is mainly realized by the following process steps:

1. Lithium mica and lithium slag proportioning and pretreatment: take the lithium mica waste slag as raw material, fully mix and pre-mix the lithium mica waste slag with sodium and potassium mixed salt and carbonate according to the proportion, to form the lithium slag mixture.

2. Physical homogenization treatment: after the lithium slag mixture and water are fully mixed, they are put together in the grinding device for full grinding and mixing, which is the lithium slag mixture slurry.

3. Spray drying to produce lithium slag spray material: the mixed slurry of lithium slag is transported from the mixing tank device to the spray drying tower device through pipes for spray drying, which is lithium slag spray material;

4. Pressing into lithium slag blank plate: aging the lithium slag spray material into aging lithium slag spray material, continuously operating the aging lithium slag spray material through the feeder device, placing it in the press, and pressing into lithium slag blank plate of corresponding shape and structure.

5. Drying and shaping: pass the lithium slag blank plate through the roller kiln drying device system, and dry it until the lithium slag blank plate has stronger strength and meets the shaping requirements; And control that the dried lithium slag slab will not crack when it goes through the high-temperature roasting process; Molded lithium slag slab.

6. High-temperature baking: place the shaped lithium slag blank in the roller table of the roller kiln device in the form of a single plate, and after high-temperature baking treatment of the single plate, control the baking temperature to 860-900 ℃, and the baking and heat preservation time to 40 min - 70 min, and then cool it to calcine the lithium slag blank.

7. Crushing, grinding and leaching: use the crushing device to crush the calcined lithium slag plate, and then put it into the lithium slag vertical roller mill for further grinding treatment after crushing. For ball milling slurry, water solution is further added to the ball milling slurry for leaching treatment to obtain lithium sulfate leaching solution.

8. Solid-liquid separation to produce finished products.

The HLM lithium slag vertical roller mill produced by HCMilling(Guilin Hongcheng) is the main grinding mill equipment that is conducive to turning the calcined lithium mica slag into waste. It has successful operation experience in the grinding of the calcined slag of lepidolite and the raw ore of lepidolite. It provides equipment support for lithium slag calcination transformation of ceramic companies. If you have the grinding demand of lithium mica calcined slag, please contact HCM for the equipment details of lithium slag vertical roller mill.