Guilin Hongcheng dry method ceramic raw material powder production equipment factory learned that a mining company in Yichun annual output of 80,000 tons of lithium feldspar powder production of micro powder brick, wear-resistant brick ceramic billet fabric project passed the completion acceptance. Yichun lithium porcelain stone is extremely rich in mineral resources, excellent raw ore quality, rich in Li, K, Na and other elements, lithium feldspar is the indispensable main solvent raw material of ceramic embryo glaze. After crushing, grinding, magnetic separation, flotation, thickening, dehydration and other processes, the final products such as lithium polymicite are obtained. Lithium feldspar powder can be used in various ceramic fabrics such as high-grade fine powder brick, stone line brick, cloth brick, antique brick, ultra-white wear-resistant brick and other ceramic fabrics and other industries.
1. Lithium feldspar introduction: lithium feldspar resources distribution is relatively wide, in China, Jiangxi Yichun, Chenzhou, Hunan is one of the main origin of lithium, lithium mineral resources, Yichun lithium feldspar reserves are larger, Chenzhou linwu area is also important lithium feldspar storage, in addition, foreign countries such as Zimbabwe also have certain lithium feldspar resources. Lithium feldspar is a kind of aluminum silicate mineral containing lithium, its main components include SiO ₂, Al ₂ O ₃, Li ₂ O, etc., also contains a small amount of Na ₂ O, K ₂ O and other components, generally white, gray, Mhs hardness of 6-6.5.
2. The application of lidendandrospar in different fields The following is the application of different fineness of lithandrospar in different fields:
（1）. Ceramic field Coarse powder: generally refers to the number of 20-80 lithium feldspar powder, can be used as one of the main raw materials of ceramic blank body, can reduce the sintering temperature of the blank body, make the blank body to achieve dense at a lower temperature, help to improve production efficiency and reduce energy consumption. At the same time, it can also increase the strength and toughness of the blank body, and reduce the deformation and cracking of the blank body in the process of drying and firing.
Medium powder: 80-200 lithium feldspar powder, in the ceramic body can improve its molding performance, make the body surface more smooth and smooth, conducive to the subsequent processing and decoration. In the glaze, it can play the role of flux, reduce the melting temperature of the glaze, so that the glaze is better attached to the surface of the blank body, forming a uniform, smooth and shiny glaze.
Fine powder: more than 200 mesh of lithium feldspar fine powder, especially 325 mesh and above fineness, can significantly improve the whiteness and transparency of the ceramic body, so that ceramic products have better appearance quality. In the production of high-grade ceramic products such as bone porcelain, fine ceramics, etc., adding an appropriate amount of lithium feldspar fine powder can improve the texture and grade of the products and meet the needs of the high-end market. In addition, fine powder can also be used for the preparation of ceramic color material and underglaze color pigment, giving ceramic products rich color and decorative effect.
（2）Glass field
Coarse particles: relatively coarse lithium feldspar particles, such as 40-100 particles, can be used as raw materials for flux and clarifier in glass production, to help reduce the melting temperature of glass, promote the discharge of bubbles in the glass liquid, and improve the quality and transparency of glass. The lithium elements contained in it can also improve the chemical stability and thermal stability of the glass, enhance the corrosion resistance and heat and shock resistance of the glass, and make the glass products more durable.
Fine powder: more than 200 mesh of lithium feldspar fine powder can be used in the production of special glass, such as optical glass, electronic glass, etc. In these glasses, lidfeldspar fine powder can accurately control the refractive index, dispersion and other optical properties of glass, to meet the special requirements of optical instruments, electronic equipment and other requirements for glass performance. For example, when manufacturing the glass substrate for liquid crystal display, adding lithium feldspar fine powder can improve the flatness and surface quality of the glass to ensure the display effect of the display.
（3）Chemical industry
Coarse particles or medium powder: thicker lithium feldspar particles or 80-200 purpose medium powder can be used in some chemical reaction catalyst carrier, its large specific surface area and good chemical stability, can load the active component, improve the activity and selectivity of the catalyst. In addition, lithium feldspar can also be used as a raw material for the production of lithium compounds, through chemical extraction, and then prepare important lithium salts, lithium carbonate, lithium hydroxide and other important lithium salts, these lithium salts are the key raw material for the production of lithium battery, lubricant, ceramic glaze and other products.
Fine powder: high fineness of lithium feldspar powder, such as more than 400 mesh or even thinner powder, can be used to prepare high-performance ceramic film materials. Ceramic film has the advantages of high temperature resistance, acid and alkali resistance, high mechanical strength and high separation accuracy, and has a wide application prospect in chemical industry, food, environmental protection and other fields. Lithium feldspar fine powder can improve the pore size distribution and porosity of the ceramic membrane, improve the separation performance and flux of the membrane, and make it play a better role in gas separation, liquid filtration, biological separation and other aspects.
(4) Other areas
Medium fineness powder: in the paper industry, 100-300 lithium feldspar powder can be used as a paper filler, can improve the brightness, smoothness and opacity of paper, but also can enhance the strength and wear resistance of paper, improve the printing performance of paper. In paints and coatings, lithium feldspar powder can be used as a part of pigments and fillers to increase the hardness, wear resistance and weather resistance of the coating, so that the coating has a better decorative effect and protective performance.
3. Grinding processing of lianddspar
In the process of producing powder brick and wear-resistant brick ceramic fabric, lithium feldspar should be ground. The Raymond mill, vertical mill, ultra-fine vertical mill and ring roller mill independently developed by Guilin Hongcheng can be dry grinding by lidufeldspite to 80-2500 mesh of fine powder, with the output of one ton to dozens of tons. Guilin Hongcheng grinding machine can dry grinding mohs hard 7 non-metallic ore, mill smooth operation, stable quality, high milling efficiency, small energy consumption, stacking grinding roller durable. Consulting hongcheng mill prices,e-mail:1285329875@qq.com, Wechat：18878317068
