Coal slime dewatering and drying equipment

Due to the many unfavorable conditions of coal slime, such as high moisture, high viscosity, high water holding capacity and low calorific value, it is difficult to realize industrial application. It has long been rejected by power users and has been mainly sold for civilian use. Since the reform and opening up, the national economy has developed rapidly, coal production has jumped to the first place in the world, and the market situation has also changed greatly. The depth and breadth of coal processing are developing rapidly, the output of coal slime has increased significantly, and the comprehensive utilization of coal slime has become an urgent problem to be solved.

With the continuous development of industrial science and technology in my country, the remaining coal slime has been well utilized. The coal slime dryer adopts a new technology of crushing and dispersing the coal slime first and then thermally drying it, so that the treatment of coal slime can be realized continuously, industrialized, and automated. After the coal slime drying process, the moisture content of the coal slime can be reduced from 25% to 28% to about 12%. Due to the introduction of pre-crushing, dispersion, breaking up, and anti-sticking wall processes in the coal slime drying process, the drying efficiency of the coal slime has been greatly improved, and it has also brought new vitality to the coal slime drying industry.

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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.

Slove method of the clogging of trommel screen sieve

The drum screen is a simple screening device. The trommel screen is easy to close and collect dust, the maintenance is small, the maintenance is simple, and the service life is long. It is a device frequently used in refractory materials, coal, river sand classification, and sandstone classification. The advantage of the trommel screen is that the structure is not complicated so that the device can be quickly operated, and when the trommel has problems, people can easily solve it. But what should I do when the screen of the trommel screen is blocked? The following screen will introduce several ways to solve the phenomenon of blocking the net. The trommel screen sometimes adopts a mechanism added to the fixed frame, and then the mechanism rotates to drive the belt mounted on the belt to continuously smear the surface of the sieve hole, thereby sucking out the raw material particles blocked in the sieve hole. One of the disadvantages in practice is that it produces a lot ...

The classifications of quartz sand

1. Ordinary quartz sand: The surface of ordinary quartz sand seems to have a layer of yellow skin, and some have large particles and strong fire resistance. It is a kind of quartz sand processed by the manufacturer after using natural quartz ore in the production process, such as washing and drying. No impurities can be seen in the quartz sand through the second water treatment filtration. It is the best choice for chemical water treatment. It can block the sundries suspended in the water and maintain the quality and beauty of the water. 2. Refined quartz sand: Refined quartz sand is a mineral made by the manufacturer after carefully selected quartz stone. According to different requirements of users, the range used is also different. But generally the main use of refined quartz sand is in glass products, because refined quartz sand is refractory and precision casting, especially suitable for fireproof glass materials.

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