As a powder equipment sales small white, must not know the powder noun

Since we choose to join the field of powder equipment, it is inevitable to have a deep understanding of the industry and increase the sense of identity of the industry. In fact, the powder equipment industry, as the foundation of the whole industry of the country, is a very important part. To a certain extent, the technical development level of powder equipment also reflects the industrial level of a country, so the development prospect of this industry is still very good. So for the sales of Xiaobai who is new to this industry, what must be known about powder terms when selling airflow pulverizer and superfine pulverizer classifier?

Many factory raw materials are powder, we often sayPowder size, particle size distribution, specific surface areaWait. What exactly do these nouns mean?

Usually we say the powder refers to the micron level or even nano-level powder, micron level particle size D97 = 1 ~ 74um. Sichuan giant ultra-fine grinding equipment JZL fluidized bed pulverizer, it has a wide range of crushing particle size, and the finished product particle size is arbitrarily adjusted in the range of D97 = 1 ~ 74um.

　　GranularityIt is one of the most important technical indicators of powder products. In the traditional particle size measurement method, the sieve method is the most common, so the expression of particle size is often in "mesh. The so-called "mesh" refers to the number of sieve holes per unit length. The larger the mesh number, the smaller the surface mesh, and the smaller the maximum particle that can pass through the mesh. Sichuan giant ultra-fine grinding equipment JZL fluidized bed crusher is suitable for grinding and grading of ultra-fine powder above 500 mesh.

　　particle size distributionIt is the proportion of particles of various sizes in the total number of particles in the powder sample. The most common expressions of particle size distribution are tables and curves, which are called particle size distribution tables and particle size distribution curves, respectively.

　　Characteristic particle size,The amount of data is large, so it is not clear at a glance. In most practical applications, as long as the average particle size and particle size distribution range of the sample are determined, the particle size of the sample is generally determined. We refer to the parameters used to describe the average particle size and the range of particle size distribution as the characteristic particle size. Such as: average particle size, median diameter, boundary particle size, etc. There are two key indicators that represent granularity characteristics, which are described as follows:

D50: The particle size corresponding to 50% of the cumulative particle size distribution of a sample. Its physical meaning is that the particle size is greater than its

Particles account for 50%, and particles smaller than it also account for 50%. D50 is also called median diameter or median diameter. D50 is often used to represent the average particle size of the powder.

② D97: The particle size corresponding to 97% of the cumulative particle size distribution number of a sample. Its physical meaning is that the particle size is smaller than its particle size.

Grain accounted for 97%. D97 is commonly used to indicate the particle size index of the coarse end of the powder. The definition and physical meaning of other parameters such as D16, D90 are similar to D97.

When selecting crushing and grading machine equipment, manufacturers will generally communicate the discharge fineness range D50 and D97. As a standard for acceptance of equipment. JZL fluidized bed pulverizer of Sichuan giant ultra-fine pulverizing equipment can be connected in series in multiple stages, and can be equipped with 1-5 grade classifiers to produce products with narrow particle size distribution.

　　specific surface area of powderIt is a measure of the particle thickness and solid adsorption capacity in the powder. The surface area of a particle includes not only the external surface area of the particle, but also the internal surface area formed by fissures and voids.

The above are all dry goods from the industry. The advertisement will be inserted below. I just want to write some soft articles to publicize and promote the equipment of Sichuan Giant Airflow Crusher. Powder industry forerunner, welcome to have the need to consult oh. As a manufacturer who entered the industry very early, we are professional.

The working principle of JZL fluidized bed airflow crusher determines its wide application field, high fineness of finished products and high classification accuracy. It forms a complete set of airflow crushing system with air compressor, cold dryer, cyclone collector, dust collector, induced draft fan, control cabinet, etc., which can be widely used in non-metallic minerals, medicine and food, ceramics, environmental protection, new energy, battery materials and many other industries.

The jet mill customized by Sichuan Giant is widely used in the classification and segmentation of ultra-fine grinding of low-temperature, high-purity and high-hardness dry materials such as chemical industry, abrasives, ceramics, environmental protection, new materials, new energy, non-metallic minerals, medicine and food, powder metallurgy, battery materials, etc.