Quartz sand has high insulation, corrosion resistance, wear resistance, high temperature resistance and unique optical effects. It is widely used in high-tech projects such as construction, chemical, machinery, electronics, rubber, paint, smelting and aerospace. Quartz sand is a raw material for producing high-standard materials such as monocrystalline silicon, polycrystalline silicon, quartz glass, optical fiber, solar cells, and integrated circuit substrates. This shows how important the strategic position of quartz sand is. The production technology and production equipment of quartz sand are many in China. The development of high-tech industries is closely related.
There are two kinds of quartz sand production line process, one is the dry selection quartz sand production line. Its process: crushing-separation-roughing-selection- iron removal. The other process is a wet-selected quartz sand production line generally: pulverization-sieving-washing-drying-sieving-iron removal.
Today we will understand the process of wet-processed quartz sand production line, the composition of refined quartz sand: SiO2 ≥ 99-99.5%, Fe2O3 ≤ 0.02-0.015%, particle size range of 5-480 mesh, the main use is processing glass, refractory materials, Precision casting, grinding wheel abrasives.
Main equipment for wet refining quartz sand production line
The main equipment of the wet refined quartz sand production line includes jaw crusher , impact crusher , quartz stone sand machine, dryer, vibrating screen, sand washing machine, feeder, conveyor and so on.
Characteristics of wet refined quartz sand production line
1. The wet-processed quartz sand production line has high automation, energy saving and environmental protection, low operating cost and simple maintenance, and can achieve large-scale production.
2. The production line solves the problem of unqualified sand and gravel material in the traditional quartz sand production line. The finished sand has uniform particle size, good grain shape and reasonable grading, and fully meets the sandstone standard of China.
3. Overcoming the serious problem of machining hard rock equipment, the crushing equipment used in the production line is suitable for the production of rock with high hardness, and the wearing parts are not easy to wear, which can significantly reduce the production cost.
4. The production line can meet the different grain size requirements of sand and gravel aggregate by adjusting the equipment parameters. Users can look at the market to produce marketable products, realize multi-use and reduce production investment.
Wet refined quartz sand production line process
The large quartz stone is firstly crushed by a jaw crusher for the feeder, processed into smaller stones, and then enters the impact crusher for medium crushing and fine crushing, because some quartz sand products have more granular size. Requirement, so the quartz stone sand machine can be used to shape the sand, and the quartz sand with the appropriate particle size can be sent to the sand washing machine for cleaning, and the magazines such as soil and powder can be removed. After cleaning, all are sent to the sedimentation tank, and the dryer is used to precipitate. The sand in the pool is completely dried into dry sand. In the process of screening the quartz sand by the vibrating screen, the magnetic material is used to remove the iron, and the finished product is sent to the finished product warehouse to complete the whole process.
In recent years, China has attached great importance to the research and development of refined quartz sand technology. The unique physical and chemical properties of quartz sand make it occupy a pivotal position in aviation, aerospace, electronics, machinery and the rapidly developing IT industry. High-tech products also play an increasingly important role.
Polyacrylamide (PAM) is a water-soluble polymer, which is insoluble in most organic solvents, has good flocculating properties, can reduce frictional resistance between liquids, Can be divided into non-ionic, anionic, cationic and amphoteric four types.
When PAM is used for flocculation, it is related to the surface properties of the species being flocculated, especially the potential, viscosity, turbidity, and pH of the suspension. The kinetic potential of the particle surface is the reason for particle inhibition. Can reduce the potential and condense.
Granular polyacrylamide flocculant cannot be directly added to sewage. It must be dissolved in water before use, and its aqueous solution are used to treat sewage.The water in which the particulate polymer is dissolved should be clean. Generally tap water is suitable for formulating polymer solutions. Strong ACID, strong alkali, high salt water is not suitable for preparation. Water at room temperature is ok, no necessary to heat. Dissolution is slow when the water temperature is below 5 ° C. Increasing the water temperature will accelerate the dissolution rate, but above 40 ° C will accelerate the degradation of the polymer and affect the use effect. The solution concentration is recommended to be 0.1% -0.3%.
Oil Extraction Polyacrylamide,Papermaking Polyacrylamide,Food Grade Polyacrylamide,Medical Materials Polyacrylamide
HENAN JINHE INDUSTRY CO.,LTD , https://www.hnironoxide.com