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Showing posts from October, 2023

How to adjust the fineness of basalt sand making

1. Increase the rotor speed of the vertical shaft impact sand making machine, increase the linear speed of the aggregate in the crushing cavity (this system is 65m/s), increase the sand formation rate and the stone powder content of the crushed sand, and at the same time reduce the fineness of the sand. number. 2. Adjusting the feed gradation of the vertical shaft impact crusher can greatly improve the sand making effect. 3. The <5mm aggregate produced by the production line system after coarse crushing and medium and fine crushing has a high stone chip content. The process prevents this part of the aggregate from producing finished materials, and allows all the <5mm aggregates after medium and fine crushing to enter the vertical shaft impact crusher for shaping. To control the quality of finished sand. https://www.lzzgmachine.com/service-parts/product-knowledge/how-to-adjust-the-fineness-of-basalt-sand-making.html

slag treatment project in power plant

Processing raw material: slag after incineration of domestic waste slag treatment in power plant Equipment configuration: shaftless drum screen, armored permanent magnet magnetic separator, jaw crusher, hammer crusher, wet permanent magnetic drum magnetic separator, dehydration screen, jig, shaking table, hanging selection, ball mill, Spiral sand washing machine, trommel screen, leaping screen, eddy current separator, wheel type sand washing and recovery integrated machine, box filter press and other auxiliary equipment. The successful signing of this project will open a new situation of mutual benefit and win-win for both parties. It is hoped that the project will be completed and put into operation as soon as possible, and make greater contributions to the construction and social and economic development of Shangqiu City.

What kind of sand can be used as foundry sand?

The molding sand suitable for casting that is widely distributed in nature is silica sand , also known as quartz sand. The main mineral composition is quartz, and the main chemical composition is SiO2. Natural silica sand: Due to its different chemical composition and particle size composition, it is used as molding sand and core sand for non-ferrous alloy castings, iron castings and small and medium-sized steel castings. Selected natural silica sand: used for various steel casting molding sand and core sand using organic matter as binder. Artificial silica sand: molding sand and core sand used for precision casting, furnace lining or steel castings.

The difference between quartz and mica

Mica and quartz are common minerals that play an important role in mineralogy. Although they are both silicate minerals, there are clear differences between them. First, mica and quartz are very different in appearance. One of its distinguishing features is that mica exhibits a layered structure that can be easily peeled off into thin flakes. Quartz, on the other hand, is a uniform crystal with no layered structure. Additionally, mica is usually dark in color, such as black, brown, or green, while quartz is usually clear or white. Secondly, mica and quartz also differ in their physical and chemical properties. The hardness of mica is usually between 2.5 and 4, which is relatively easy to be scratched; while the hardness of quartz is very high, 7, which is a very hard mineral. In addition, mica has good refractive properties and electrical properties, while quartz is an excellent piezoelectric material.