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Hydro Cyclone is suitable for processing various types of pulp. Whether it is coarse or fine slurry, it can be effectively classified by cyclone 1. Grinding and classification In the fluorite ore dressing process, grinding is an important link. Due to the different embedded particle sizes of fluorite and gangue minerals, it is necessary to separate the monomers through grinding. The cyclone plays a key role in the classification process after grinding. Through the classification of the cyclone, the slurry after grinding can be divided into coarse particles and fine particles. The coarse particles return to the mill for further grinding, and the fine particles enter the next beneficiation process. This not only improves the grinding efficiency, but also ensures the smooth progress of the subsequent beneficiation process. 2. Pretreatment before flotation In the flotation process of fluorite ore, the particle size distribution of the slurry has an important influence on the flotation eff...

In general, the beneficiation of tin ore must first be screened to screen out large pieces of waste rock to improve the efficiency of the subsequent beneficiation process. If the mud content is high, washing is required. Therefore, the screening process usually uses a multi-purpose drum washing machine, which has both the functions of washing and screening. It is very common in the field of tin ore and gold ore washing. After washing and screening, the ore sand can enter the gravity separation process for rough separation. The gravity separation process usually uses a jig as the core gravity separation equipment. The jig for sand tin ore selection has multiple advantages such as high ore separation efficiency, good ore separation effect, high recovery rate, and low production cost. It is also the most energy-saving and environmentally friendly gravity separation equipment. The jig plays an irreplaceable role in the beneficiation of sand tin ore. Due to different types of tin ore, some...

Stone powder refers to particles less than 75μm in artificial sand and mixed sand. Most of the stone powder in artificial sand is fine particles of broken parent rock. Unlike mud in natural sand, their role in concrete is also very different. On the one hand, high stone powder content increases the specific surface area of ​​sand and increases water consumption; on the other hand, the ball effect produced by fine spherical particles will improve the workability of concrete. Therefore, stone powder in artificial sand cannot be regarded as a harmful substance. The comprehensive impact of stone powder content on artificial sand has been proved by decades of experiments: Guizhou Province began to study the use of artificial sand in the 1970s. When the stone powder content in artificial sand is 0-30%, it has little effect on the performance of concrete, has no effect on the compressive and tensile strength of medium and low-grade concrete, and has little effect on the strength of C50 grade...

For feldspar ore produced from feldspathic placer or weathered granite, the ore washing method can be used to remove impurities such as clay, mica, fine mud, etc. The Fe2O3 content of the washed feldspar ore is reduced, and the potassium and Sodium content is increased. The principle of mineral washing is that clay, mica and fine mud have small particle size and small specific gravity, so they settle slowly and can be separated from coarse-grained feldspar under the action of water flow. Ore washing equipment generally uses a washing tank or a vibrating screen. Mining sites generally use washing tanks, and mineral processing plants generally use vibrating screens. Currently, many feldspar ores use this method for impurity removal and purification. The primary slime in the feldspar mine and the secondary slime produced during the mining process will affect its mineral processing effect, so it must be removed in advance before mineral processing. The process of removing slime is called...

Effect of high sand content on concrete 1. When the amount of sand is the same, if the sand is too coarse, the cohesiveness of the mixed concrete is poor, and it is easy to produce segregation and bleeding; If the sand is too fine, the total surface area of ​​the sand increases. Although the cohesiveness of the mixed concrete is better and it is not easy to produce segregation and bleeding, the amount of cement increases. 2. Concrete prepared with well-graded sand not only uses less cement slurry and saves cement, but also improves the workability, density and strength of the concrete. 3. The coarseness and particle grading of the sand are determined by sieve analysis.

The cross section of the spiral concentrator is mostly 1/4 of an ellipse, suitable for sorting mineral particles of 2 to 0.07 mm; the cross section of the spiral chute is cubic parabolic, suitable for sorting ore particles of 0.3 to 0.02 mm. The spiral concentrator and spiral chute have low investment in infrastructure, low energy consumption, simple and reliable equipment, easy operation, high enrichment ratio, and can obtain a variety of products. But the ore must be fed evenly. Compared with other mineral processing methods, gravity separation has the advantages of large processing capacity, wide particle size range, simple equipment structure, no consumption of precious production materials, low operating costs, and no pollution. Therefore, it is widely used in the mineral processing of tungsten and tin ores. . It is also widely used in the separation of ferrous metals (iron, manganese, chromium), rare metals (tantalum, niobium, thorium, zirconium, titanium, etc.) and precious meta...

On April 17, a train loaded with desulfurized gypsum slowly pulled out from Bijie East Station and was transported to Fangchenggang Station in Guangxi to realize the export of bulk solid waste. This train is Guizhou’s first complete desulfurization gypsum foreign trade train. The desulfurization gypsum loaded on the train will be transported by sea and arrive at the Jinpu Terminal in Vietnam 15 days later. It has expanded the previous domestic transportation mode to international, broadened the sales radius of desulfurization gypsum, and helped “Turning waste into treasure”. It is reported that solid waste generated by thermal power generation is usually used as raw materials for building materials for dynamic consumption. In recent years, with the continuous growth of thermal power generation in our province, the amount of solid waste has also increased accordingly. The most representative ones are ash and desulfurization. Gypsum, at the same time, the construction and other industrie...