There is technology to recycle steel slag powder and lithium slag powder. Composite powder made from granulated blast furnace slag, lepidolite slag and steel slag can be used as building materials. So, how to produce lithium slag and steel slag composite powder? Today, HCM Machinery, a slag vertical mill manufacturer, will introduce it to you.

Steel slag contains active minerals such as dicalcium silicate and ferroaluminate, which are similar to cement and have hydraulic gelling properties. Therefore, it can be used as raw material and admixture for the production of cement with no clinker or less clinker. At the same time, steel slag has the properties of high density, high strength, rough surface, good stability, wear resistance and durability. Steel slag powder can be used as an admixture for cement and concrete. It can not only replace 10-30% of cement in equal amounts, but also improve the later strength of concrete. It can reduce CO2 emissions during cement production, reduce environmental pollution, and protect the ecological environment. Lithium slag is the residue that is discharged after spodumene is calcined at a high temperature of 1150 degrees to 1300 degrees, and then the lithium carbonate clinker extracted by sulfuric acid is washed by percolation and leaching. To produce 1t of lithium salt every year, about 8~10t of lithium slag is produced. The discharged lithium residue occupies land, is easily lost in wind and rain, and pollutes the environment, becoming a heavy burden for enterprises. A great deal of experimental research and technology development must be carried out. Judging from the experimental research results of cement and concrete, the activity of lithium slag powder compared with silicon powder, slag powder and fly ash is in the following order: silicon powder>lithium slag powder>slag powder>fly ash.

Therefore, lithium slag powder can be used to formulate high-strength concrete. Lithium slag concrete has good mechanical and impermeability properties. It can meet the special requirements of buildings such as pools and basements. It also has excellent anti-abrasion properties and is more suitable for highway pavements, urban streets, parking lots and other buildings.When preparing lithium slag steel slag composite powder, there is a certain degree of difficulty in grinding it due to the large differences in hardness and fineness and the degree of crushing of individual materials. So, how to produce lithium slag and steel slag composite powder? The slag vertical mill produced by HCM Machinery is an ideal equipment for grinding lithium slag and steel slag composite powder. How to produce lithium slag steel slag composite powder? The process flow of vertical mill to produce lithium slag and steel slag composite powder is as follows:

1. Pretreatment: Send the steel slag tailings obtained from the steel slag processing metal recycling step into the steel slag main batching bin, and send the lithium slag into the lithium slag auxiliary batching bin;

2. Preparation of mixed slag: Steel slag tailings and lithium slag are mixed according to the weight component ratio of 9~6:1~4 through their respective quantitative feeders and then enter the screw conveyor, and then sent to the vertical mill by the screw conveyor Grind directly;

3. Vertical mill: Control the grinding roller pressure of the vertical mill, the inclination angle of the grinding disc lining, the temperature of the vertical mill, and the air volume to obtain qualified steel slag, lithium slag composite powder and unqualified steel slag, lithium slag composite grinding return material;

4. The steel slag and lithium slag composite grinding materials obtained after grinding by the vertical mill are magnetically separated and ironed twice by the No. 3 self-unloading electromagnetic iron remover and the No. 1 dry powder permanent magnet drum magnetic separator, and then It is sent to the upper part of the vertical mill from the No. 1 elevator, and the cloth is vibrated by the vibrating feeder. The material layer thickness of the cloth is less than 20mm, and the width of the material layer is the same as the magnetic roller of the No. 2 dry powder permanent magnet drum magnetic separator. It enters the No. 2 dry powder After three times of magnetic separation and iron removal by the permanent magnet drum magnetic separator, it is sent to the other inlet of the vertical mill above the entrance of the screw conveyor and enters the vertical mill for grinding again. The selected slag iron and magnetically separated powder enter the slag respectively. Iron warehouse and magnetic separation powder warehouse;

5. The qualified steel slag and lithium slag composite powder obtained after grinding by the vertical mill enters the steel slag and lithium slag composite powder warehouse.

The process technology of vertical mill producing lithium slag and steel slag composite powder simplifies the production process and improves the performance of steel slag powder. Since the activity of lithium slag is better than that of steel slag, the activity of steel slag and lithium slag composite powder is further increased, which increases the activity index of steel slag and lithium slag composite powder, thus improving the strength of concrete. If you have lithium slag steel slag composite powder production needs and need to purchase a vertical mill, please contact Email: hcmkt@hcmilling.com