What is Phosphogypsum
Phosphogypsum refers to the solid waste in the production of phosphoric acid with sulfuric acid phosphate rock, the main component is calcium sulfate. Phosphorus gypsum is generally powder, the appearance is gray, grayish yellow, light green and other colors, contains organic phosphorus, sulfur compounds, bulk density 0.733-0.88g/cm3, particle diameter is generally 5 ~ 15um, the main component is calcium sulfate dihydrate, content counted about 70 ~ 90%, among which secondary ingredients contained vary with different phosphate rock origin, usually contain rock components Ca, Mg phosphate and silicate.
Usage of Phosphogypsum
1.Widely used in the field of building materials, large consumptive amount of phosphogypsum and its mature technology application route is carried out by grinding mill. The fine powder of gypsum plaster could be used as building materials in the manufacture of new products including gypsum instead of natural gypsum cement retarder production, refining building gypsum powder, production of plaster board, gypsum block and the like.
2.Phosphogypsum rendered acidic, is very rich in sulfur, calcium, magnesium and other trace elements, in addition of widely used for construction, road and other purposes, but also for improvement of saline-alkali soil conditioner, played an important role in alleviate desertification. And moreover, phosphogypsum can also be prepared as a long-acting fertilizer and other fertilizer raw materials.
3.Phosphogypsum has a very large space for development. In industrial field, phosphogypsum used to produce sulfuric acid and cement ammonium sulfate, potassium sulfateand and other products through different processing methods, give full play to its special value.
Phosphogypsum Ultrafine grinding mill
Guilin Hengda Mining Machinery Co., Ltd is a professional ultrafine mill manufacturer from China. For phosphogypsum ultrafine mill, HGM series is a good choice, not only for its factory price, but also multiple layers of multiple grinding roller, grinding wheel bracket with a combination of structure, the drive spindle is s multi-angle diamond-shaped structure, crushing power strong, less maintenance, easy demolition, low cost, and the finished product does not turn back.
HGM multi-layer curved roller mill is the ideal equipment for the current dry production of non-metallic mineral powder. Main Unit equipped with built-grading institutions, grading wheel unique structure, grading effect, powder particles concentrated, no large particles of pollution. Grinding ring with a special wear-resistant alloy steel or high chromium manufacturing, life increased by 2-3 times. Main unit base with the overall cast steel structure, high structural strength, shock absorption performance.
HGM ultrafine grinding mill specifications:
Max feeding size: ≤20mm
Main unit power：132/200KW
Final product size: 3-35μm
Applications : It is applied to the processing of nonmetallic minerals with the water content less than 10% and the Moh’s hardness under6, such as calcium carbonate, talcum, barite, wollastonite, feldspar etc.
9th Feb. 2018